TWI673459B - Air purifier - Google Patents

Abstract

The air cleaner includes: a first determination unit that determines at least one of a state in which no person is in the room to be air-purified, a state where there is a person with little movement, and a state where the person has a lot of movement; Which of the bright state and the dim state of the air-purifying target room; and the operation control unit controls the operation of the air-cleaning function using the determination results of the first determination unit and the second determination unit.

Description

Air cleaner

The present invention relates to an air cleaner having a human body sensor and an illuminance sensor.

Traditionally, air purifiers equipped with body sensors and illuminance sensors are known. For example, Patent Document 1 listed below discloses an air cleaner that controls output based on the presence or absence of a person and the brightness in a room.

Patent Document 1: Japanese Laid-Open Patent Publication No. 2012-97955 (published on May 24, 2012)

However, in the conventional technology as described above, since the air purifier is operated without considering the operation of a person existing in the air purification target room, there is a problem that the air purifier is operated uselessly.

An object of one embodiment of the present invention is to provide an optimal air environment by performing air control according to a motion state and brightness of a person in an air purification target room.

In order to solve the above problem, an air cleaner according to an embodiment of the present invention is an air cleaner equipped with a human body sensor for detecting a person's motion and an illuminance sensor for detecting the brightness of a room. In a state where there are no people in the air purification target room, in a state where there are people in the air purification target room, when there is little movement, and when there are people in the air purification target room, it is determined that the interior of the air cleaning target room is bright based on the detection signal of the illuminance sensor. Clean air The interior of the target room is in a dark state and the operation control unit controls the operation of the air purification function using the determination results of the first determination unit and the second determination unit.

According to an aspect of the present invention, there is an effect of being able to perform air control in accordance with the condition and brightness of a person in an air purification target room.

4‧‧‧Display

5‧‧‧ humidifier

11‧‧‧First Judgment Division

12‧‧‧Second Judgment Division

13,13A, 13B‧‧‧operation control department

15‧‧‧rotation control unit

16‧‧‧Personal sensor control unit

31,31B‧‧‧Personal Sensor

32‧‧‧illumination sensor

33‧‧‧ Dust sensor

34‧‧‧Odor sensor

50‧‧‧ pedestal

100,100A, 100B‧‧‧Air Purifier

FIG. 1 is a functional block diagram showing a schematic configuration of an air cleaner according to a first embodiment of the present invention.

It is a perspective view which shows the outline of an air cleaner.

FIG. 3 is a cross-sectional view taken along the line AA in FIG. 2 showing the outline of the air cleaner.

FIG. 4 is a diagram schematically showing conditions used by the air cleaner to determine the state of an air-purification target room.

5 is a functional block diagram showing a schematic configuration of an air cleaner according to Embodiment 2 of the present invention.

FIG. 6 is a diagram schematically showing operation control in each state of an air purification target room of the air cleaner.

FIG. 7 is a functional block diagram showing a schematic configuration of an air cleaner according to Embodiment 3 of the present invention.

FIG. 8 is a front view showing an outline of the air cleaner.

9 (a) and 9 (b) are diagrams showing the relationship between the rotation angle of a part of the air cleaner and the detection range of the human sensor.

[Example 1]

Embodiments of the present invention will be described below with reference to FIGS. 1 to 4.

The air cleaner 100 sucks ambient air and is provided with an air purifying function to remove foreign substances such as dust contained in the air, and further a dehumidifying function to remove moisture contained in the air. Yes, it increases the humidity of the air. It may have a humidifying function. An air cleaner having a humidifying function will be described in detail in the second embodiment.

In addition, the air purifier 100 may include an ion generator for inclusion of ions in the air to remove foreign matter. Ionizers produce ions by discharging in the atmosphere. Each of these arbitrary natural numbers n is configured to generate negative ions O2- (H2O) N, preferably an ionizer, meters, and positive ions H + (H2O) meters. In this case, the positive and negative ions on the surface of an air fungus or virus can be attached to the air by reacting OH radicals on the surface (.OH) and the active species produced by hydrogen peroxide, such as sterilization (H2O2) is also possible.

In the air cleaner 100, by combining the detection result and the detection result of the human sensor 31 of the illuminance sensor 32, the use of the air cleaner 100 is held by a person in order to provide an air environment according to the purpose of use. To facilitate understanding of the air purifier 100, the outline of the air purifier 100 is first outlined below.

(Air Purifier Overview)

The state of the air cleaner 100, the air purification target chamber R, and the detection result of the human body sensor 31 (output signal) is at least ", simply in one state (hereinafter, it is not the air purification target chamber R" state Sp1 "And expression", "" just leave someone to operate a small state (hereinafter referred to as the air cleaning target room R is called "state SP2") "and" stay one for the air cleaning target room R (hereinafter referred to as " "State 3"), where there is a lot of motion.

The air cleaner 100, in the state of the air purification target chamber R, the detection result of the illuminance sensor 32 (output signal), at least, the "internal air cleaning target chamber R is on (hereinafter referred to as" state SL1 "symbol to) ", And it determines which of the" air purification target chamber R is the simple "state SL2 in the dark state (hereinafter, simply referred to as") ". The air purifier 100 is determined by using these The result is to control the operation of the air purification function. In summary, these control operations that determine the results performed in the air purifier 100 are used as follows (1) to (4).

(1) State SP3, because people are active, dust dancing is easy, or the smell of the situation may occur. When the air cleaner 100, the dust sensor 33 and the odor sensor 34 are "high", the blast volume is stronger than usual, and the sensitivity level of at least one sensor in the air can be quickly purified. The sensor sensitivity level is "high". In particular, in the case of the dust sensor 33, the dust sensor 33 for determining dust is detected by a reduced standard, that is, the degree of the amount of a smaller amount of dust, even if detected, Also judged as "dusty". In the case of the odor sensor 34, a reduced standard is used to determine the degree of detection by the odor sensor 34, that is, it is judged that "smell" even when less odor is detected.

(2) In the state SP1, since there is no air cleaning target room R, the air cleaner 100 that is not required in the state notifies the operating conditions in the human body. Therefore, the air cleaner 100 suppresses the display on the display unit 4 in consideration of energy saving, or is turned off.

(3) State SL2 is a state like a sleeping person, wherein the air cleaner 100 is used in a quiet environment. Therefore, the air cleaner 100 is air that is gently cleaned at a weak blow rate of the air released from the ship.

(4) The above (1) to (3) perform normal operations than other states.

(Details of air purifier)

Above the control for the operation described in the air cleaner 100, then, the details of the building air cleaner 100 will be described with reference to FIGS. 1-3. FIG. 1 is a functional block diagram showing a schematic configuration of the air cleaner 100. FIG. 2 is a perspective view showing an outline of the air cleaner 100. FIG. 3 is a cross-sectional view taken along A-A of FIG. 1, and FIG. 2 shows an outline of the air cleaner 100.

The air cleaner 100 is shown in Fig. 1, as shown in Figs. 1-3, the main body 1, the fan 2, the display unit 4, the suction port 6, the air purification filter 7, the control unit 10, the air outlet 20, and the human sensor 31 The illumination sensor 32 includes a dust sensor 33 and an odor sensor 34. In order to ensure the simplicity of description, the structure is not directly related to this embodiment and may be omitted from the description and the drawings. However, in the case of reference execution, the air cleaner 100 may include optional configurations.

The inlet 6 is located at the lower part of the back of the main body, in which air is drawn. On the side of the main body 1 of the air inlet 6, an air cleaning filter 7 is provided to remove dust inhaled from the air. As the air purification filter 7, for example, a HEPA (High Efficiency Particulate Air) filter can be used. In addition, the air cleaning filter 7 may be a combination of a deodorizing filter.

The outlet 20 is placed on the top of the main body 1 and blows clean air. The air outlet 20 is provided with a louver 22 for changing a wind direction.

The fan 2 is installed in a fan case (not shown). When performing the air purification operation, by driving the fan 2, it is necessary for the air in the air cleaning target chamber R to pass through the suction port 6 on the main body 1, so that the air purification filter 7 is made. During this process, the dust in the cleaning target room R contained in the air will be taken in by the air purification filter 7. The dust removal from the air is cleaned and guided to the air outlet 20 through the inside of the fan casing, and the wind trunk 8 is discharged from the air outlet 20 to the air purification target chamber R. The operation of the fan 2 is controlled by an operation control unit 13 described later.

The human motion sensor 31 detects a motion of a person in the air cleaning target room R. The human-presence sensor 31 is, for example, a pyroelectric sensor. If the human body sensor 31 is a pyroelectric sensor, the signal of the human body motion caused by the output of the motion sensor 31 captures the change in the heat (infrared amount). From the motion sensor 31, for example, a signal in the case of "No" to a low-level signal of human detection, and a high-level signal, "Yes" in the case of human detection, and the output of the first determination unit 11 will be later description. Here, the above-mentioned human detection is "No", and the human sensor 31 does not detect a person, that is, it indicates that there is no one that is an air purification target room R. If the human detection is "Yes", the human sensor 31 detects a person, that is Said, it indicates that the person exists in the air purification target chamber R.

Specifically, the presence of heat transfer obtained by the human-presence sensor 31 at predetermined time intervals determines the presence or absence of human detection based on the presence or absence of the obtained heat movement. The predetermined time is, for example, 25 milliseconds. The human sensor 31 is used for the presence or absence of a change in the amount of heat obtained at each predetermined time, and it is determined that the person detects 10 times when the person detects "yes", for example, "the transfer there is heated" is more than 4 times, 3 Times or less, it is determined that the person detection is "non-existent". When it is determined that the detection of the person is “YES”, and a high-level signal indicating that the body detection is “YES” is determined by the first determination unit 11 to determine that the person is detected as “No”, a low-level signal of the detected “No” person is identified and This is output to the first determination unit 11.

The illuminance sensor 32 detects the brightness of the room R to be air-purified. Specifically, the illuminance sensor 32 detects the illuminance of the air-cleaning target room R to (sensing), and outputs a level at which the detected illumination intensity detection result is sent to the second determination unit 12.

The display unit 4 displays an operation state and the like of the air cleaner 100. In the display section 4, for example, the air in the air cleans the target room R, (the amount of such dust), the cleanliness, temperature, humidity, and the environment of the air cleansed target room R. Specifically, the air purification target room R The state of the air) and the like can be displayed. The display of the display unit 4 is controlled by an operation control unit 13 described later.

(Odor sensor and dust sensor)

The air cleaner 100 includes at least one of a dust sensor 33 and an odor sensor 34. The dust sensor 33 and the odor sensor 34 as shown in FIG. 3 are, for example, arranged on the front surface of the main body 1. When at least one of the sensor sensitivity levels of the dust sensor 33 and the odor sensor 34 is set to “high”, the air cleaner 100 is removed to quickly detect dust and odor. change In other words, in the air cleaner 100, the sensitivity level of at least one of the dust sensor 33 and the odor sensor 34 is increased to be removed in the case where the air purification function is performed to quickly detect dust and odor.

The dust sensor 33 detects the amount of dust in the air cleaning target room R, and the detection result is output, for example, the operation of the air cleaning function is controlled at an appropriate position. Incidentally, the dust sensor 33 is not only dust, it may be a sensor for sensing particles such as pollen and PM2.5. The odor sensor 34 detects the odor, and outputs a degree of odor, for example, it can be used for those known sensors such as a metal oxide semiconductor. Incidentally, the odor sensor 34 may be a sensor for sensing the odor of a gas well.

(Storage unit)

The storage unit 110 stores various data used by the air washer 100. That is, the air cleaner 100 is executed in (1) a control program, (2) an OS program, (3) an application program for performing various functions, and (4) when executed, the application program storage unit 110 is shown in FIG. As shown. In the above (1) to (4), for example, data of ROM (Read Only Memory), flash memory, EPROM (Erasable Programmable ROM), EEPROM (registered trademark) (Electric EPROM), HDD (Hard Disk Drive), such as And stored in a non-volatile storage device. The storage unit 110 includes, in particular, a second determination table 130 stored by the first determination table 120.

The first determination table 120, the first determination unit 11 is composed of a human sensor 31, an air cleaning target room R Uchinohito (user) presence / absence, and is used to describe the condition from the detection signal as described after determining the motion ( The judgment criterion) is stored.

In the second determination table 130, the second determination unit 12 stores conditions for determining the lighting of the air purification target room R (standard) based on a detection signal from the illuminance sensor 32.

(control unit)

The control unit 10 centrally controls the functions of the air cleaner 100. The control unit 10 shown in the figure includes, as function blocks, a first determination unit 11, a second determination unit 12, and includes a drive control section 13.

The functional blocks of the control unit 10 described above, for example, a CPU (Central Processing Unit), etc., ROM (Read Only Memory), NVRAM (Non-Volatile Random Access Memory) are implemented in a similar (storage unit 110) The storage device is stored in a RAM (Random Access Memory) (not shown) or the like, and executes the program.

The operation control unit 13 controls the operation state of the air cleaning function using the determination results of the first determination unit 11 and a second determination unit 12 described later. Specifically, at least the following (1) to (3) are controlled. (1) the air volume of the fan 2, (2) the display displayed on the display unit 4, and (3) the sensitivity levels of the dust sensor 33 and the odor sensor 34.

The state determined in the operation control unit 13, the first determination unit 11, and SP3, (1) the amount of air of the fan 2 is increased, and the sensitivity level of the high (2) sensor of the dust sensor 33 and the odor sensor 34 is reached.

In addition, the operation control unit 13, the first determination unit 11, and the brightness of the state Sp1 are determined to be suppressed in the display unit 4 or turned off.

In addition, the operation control unit 13 and the second determination unit 12 reduce the air volume of the fan 2 when the state SL2 is determined, and gently clean the air in the air cleaning target room R. The air cleaner 100 is considered to have been Use in a quiet environment, such as sleeping people. However, when it is determined that the state is determined by the second determination unit 12 SP1, and if it is determined that the state is SL2, the operation control unit 13 increases the air volume of the fan 2.

By the way, the state SL2 is determined, and if the state SP3 is determined, it is an operation of whether or not priority is assigned to the state SL2 and the state SP3, and can be appropriately set. In addition, the purpose of the ascent control unit 13 of the air cleaner 100 is to start Sp2 in one state, and start operation.

(Relevant determination "no residence / mobile small / movement often")

For the determination of "no residence / less movement / movement often", refer to FIG. 1 and FIG. 4. The air cleaner 100 is a diagram showing conditions used by the organization to determine the state of the air purification target chamber R. First judgment The unit 11 refers to a first determination table 120 described later, and it determines whether at least the state is SP1, which is the state SP2 and the state SP3. The first determination section 11 determines the above three conditions, and outputs the determination result to the operation control unit 13. The first determination unit 11, the output value acquisition unit 111, the exercise level determination unit 112, the non-detection time measurement unit 113, and a stationary non-existence determination unit 114.

The output value acquisition unit 111 acquires, for example, an output value from the motion sensor 31 at each predetermined time ("Yes" for person detection / "No" for person detection). The obtained output value, at least, the period corresponding to the determined time will be described later, and it is held in a memory or the like. In the following, the output value acquisition unit 111 performs detection by obtaining the output value of the human body detection from “Yes” or the human detection “No” of the human body sensor 31, the human body detection “Yes” or the human body detection “No”, and also indicates.

The exercise degree determination section 112 refers to the hold obtained from the output value of the output value acquisition unit 111 and calculates the total time Ts of the most recent determination time for the person detection “presence”, and determines the degree of exercise of the person based on this.

The exercise degree determination unit 112 is a state SP2 and a state SL1 is a state Sp2, and in the case of the state SL2, different degrees of determination time are used to determine the degree of exercise of the person.

Specifically, the state SP2, and the state Sp2 in the state of the determination time of the state SL1 (hereinafter, referred to as the determination time is the first determination time), the state at the determination time SL2 (this will be hereinafter referred to as the darkest decision time) is shorter than. For example, the determination time is "1 minute" at the first determination time, and "5 minutes" at first in a certain time.

The exercise degree determination unit 112 calculates the number of acquisitions of the human body detection "yes" with the time corresponding to the output value of the most recent determination time, and calculates TS by the total number of acquisitions with the cycle time of seconds as the acquisition period Ts. For example, for a cycle time of 0.1 second, if the latest detection time of the corresponding time "existence" of the acquisition time is 500 times the human detection, the total time Ts is 500 times × 0.1 seconds and it becomes 50 seconds.

The exercise degree determination unit 112 determines a total time Ts when the determination time at which the person detects "yes" is compared with the threshold time, and the degree of human movement (that is, whether a small movement of a person is large) is reached. The exercise degree determination unit 112 is a state SP2 and a state SL1 is a state Sp2, and in the case of the state SL2, using different threshold times, the degree of exercise of the person is determined.

Specifically, in the state SP2, and when the threshold time of the state SL1 (hereinafter, referred to as the first determination time for the threshold time) is one state SP2 and the threshold time, the state SL2 (hereinafter referred to as Called the first dark time threshold time) is shorter than between. For example, the threshold time for the first determination time is "25 seconds", and the first dark time for the threshold time is "30 seconds".

This is Sp2 of one state, and if the state is SL1, the exercise degree determination unit 112 performs the following comparison. The exercise degree determination unit 112 detects the last “one minute (first decision time vs. decision time)” total time Ts and “25. seconds (first decision time vs. threshold time)” in the person detection as “Yes”. If the total human detection time Ts "exists" is more than 25 seconds, the exercise degree determination unit 112 determines a transition from the state SP2 to the state SP3, and if the total time is less than 25 seconds, the human detection is "YES" if the state Sp2 is determined.

In addition, one state of Sp2, and if the state is SL2, the exercise degree determination unit 112 performs the following comparison. The exercise level determination unit 112 compares the total human detection time Ts of "5 minutes (first determination time is dark time)" with "30 seconds (first dark time threshold time)" at the end of "presence". If the total human detection time Ts "exist" is more than 30 seconds, the exercise degree determination unit 112 determines the transition from the state SP2 to the state SP3, and there is a total time less than 30 seconds that the person detects "y" if the state p is determined.

In addition, the exercise degree determination unit 112 is a state SP3, and the housing is a state SL1 is a state SP3, and in the case where the state SL2 is determined, using the same determination time, the person's degree of exercise judgement.

Specifically, the state SP3, the state at the determination time (hereinafter, referred to as the second determination time for MAGE) is the state SP3 at the SL1, and the state SL2 at the determination time (hereinafter, the same is the second time. It is called dark time judgment time). For example, when one state is SP3, the determination time is the second determination time, and the second dark time determination time is "5 minutes".

The exercise level determination section 112 determines the total time Ts of the person detection "Yes" determination time compared with the threshold time, and the exercise level of the person.

The exercise degree determination unit 112 is a state SP3, and the housing is a state SL1 is a state SP3, and in the case of determining the state SL2, using the same threshold time between frames, the degree of exercise of the person is determined.

Specifically, the state SP3, and the state at the threshold time (hereinafter, between the second determination time for the threshold time) is the state SL3 of the SL1, and the state SL2 at the threshold time (hereinafter, the second It is the same threshold time expressed as dark hours between frames). For example, the second is the threshold time of MAGE, and the threshold time between the second dark times is "30 seconds".

This is a state SP3, and if the state SL1, the exercise degree determination unit 112 performs the following comparison. The comparison of the "presence" of human detection by the last "5 minutes (for the decision time second decision time)" total time Ts and "30 seconds (for the threshold time second decision time)" person detection. If the total time Ts is less than 30 seconds and the person detects "Yes", the exercise determination unit 112 determines the transition from the state Sp2 of the state SP3 to "present" for more than 30 seconds and determines that the state Sp3 remains.

In addition, one state SP3, and if the state SL2, the exercise degree determination unit 112 performs the following comparison. The last “5 minutes (second dark time determination time)” of the exercise degree determination unit 112 and the total time Ts and “30 seconds (second dark time threshold time)” are detected as “yes” comparison. If the total time Ts is less than 30 seconds and the person detects "Yes", the exercise determination unit 112 determines the transition from the state Sp2 of the state SP3 to "present" for more than 30 seconds and determines that the state Sp3 remains.

The determination of the degree of exercise of the person by the exercise degree determination unit 112 is performed every minute. In addition, when from the state SP2 to the state SP3, the process of determining the operation level of the human with a predetermined standby time (for example, 5 minutes) without the SP3 air filter 100 to perform a predetermined waiting time is performed. In addition, the state SL2, when the transition from the state Sp2 to the state SP3 is also a predetermined waiting time for the determination of the degree of exercise of the person (for example, 5 minutes) without the predetermined waiting operation of the air cleaner 100 and Sp2 Do it for hours.

In the non-detection time measurement unit 113, the hold obtained by the output value referred to by the output value acquisition unit 111 has recently been continuously calculating the non-detection time from the detection of the "presence" of the human detection, the detection of the "presence", and you have not period).

The non-presence determination unit 114 determines that there is no person (non-existence) for the duration reached by the non-detection time measured by the non-detection time measurement unit 113.

The non-existence judgment unit 114 is a state SP2 and a state SL1 is a state Sp2, and in the case of the state SL2, the presence / absence person is determined using different durations.

Specifically, the state Sp2 and the duration (hereinafter, referred to as the duration determination time) when the state SL1 is the state SP2 and the duration (or higher, if the state SL2, it is shorter than the duration). For example, the duration of the determination time is "15 minutes" and the duration of "1 hour" in the dark.

In other words, in the state SP2, and if the state SL1, the upright-no determination unit 114 performs the following determination. The load non-existence determination unit 114 determines that the non-detection time has passed "15 minutes (duration determination time)" or more, and transitions from the state SP2 to the state Sp1. In addition, the upright-no-determination section 114 determines that the non-detection time "is still SP2 if it is less than 15 minutes".

In addition, in the state of Sp2, and if the state is SL2, the upright-no determination unit 114 performs the following determination. The load non-existence determination section 114 determines that the undetected time has elapsed or "1 hour (this temporary dark duration)", and transitions from the state SP2 to the state Sp1. In addition, it determines that the resident-absent judgment unit 114, if it is less than 1 hour, remains in the state SP2.

In addition, the standing-non-existence determination unit 114 determines that the human body detection "yes" is detected at the output value acquisition unit 111, and the person is (standing). The upright-no-judgment section 114, if in the state SP1, even in the state SL2 and even when the SL1, when the output value acquisition unit 111 detects the human body detection "yes", it immediately transitions from a state of Sp2 to Sp1.

(Summary of transition to each state of "no more / less movements / many movements") As shown in FIG. 4, "whether it determines the state SL1, or if the state SL2 is determined" passes "in the state SP1, The condition Sp2 and whether it is a status SP3 "air purifier 100 is used to make a judgment condition is different. In addition, "from state SP1 to state SP2" "from state Sp2 to state SP1 "," from state Sp2 to state SP3 ", the air purifier 100 and state" from state SP3 to state SP2 "have been changed, then it is determined that they are different from each other. The transition conditions are summarized as follows.

It has been determined that the air purification target chamber R is in the bright state SL1. If it is determined as "state Sp1 'to the nearest (A), the condition is satisfied, the human body detection" is "when the air purification machine 100 judges" state Has changed to state Sp2 ".

In the determined state SL1, if it is determined to be "State Sp2 'to the nearest (B), when the human body detection" None "condition is satisfied, the duration determination time is continued, and the air purification machine 100 determines “The state has changed to the state Sp1.” Here, in the example of FIG. 4, the lighting time is 15 minutes.

It has been determined as the state SL1, considering the case where it is determined as "state SP2" to the nearest case (B). In this case, between the first time of the first time for the determination of the time condition and the total time Ts detected by the person is satisfied, which is at least a threshold of the first time of the time for determination, the air filter 100 goes to "the state has changed" in the state SP3. Here, in the example of FIG. 4, the determination time is 1 minute, and the threshold time is 25 seconds.

Having been identified as state SL1, the case considered (C) is that it was identified as "state SP3" to the nearest. In this case, during the second determination time for determining the total time Ts near the time condition, "Yes" of the person detection is satisfied, which is less than between the second determination time for the threshold time, the air filter The cleaner 100 goes to "State Sp2" "The state has changed." Here, in the example of FIG. 4, the second light determination time is 5 minutes, and the second light time threshold time is 30 seconds.

It has been determined that the air purification target chamber R is dark SL2. If it is determined to be "state Sp1 'to the nearest (d), the condition is satisfied, and the human body detection" is "when the air purification machine 100 judges" the state has changed Go to state Sp2 ".

It has been determined that the state SL2, if determined to be "State Sp2 'to the nearest (E), meets the condition, the detection of the person is" No "will continue during the dark time, the air purification machine 100 determines that" The state has changed to the state Sp1 ". Here, in the example of Figure 4, the duration of darkness is 1 hour.

It has been determined as the state SL2, and considering (E), it has been determined as the "state SP2" to the nearest. In this case, when the total time Ts near the moment when the first judgment is dark is detected by the person as "yes" to be more than the first dark time threshold time, the condition that the air purifier 100 moves to " The status of status SP3 has changed. Here, in the example of FIG. 4, the first dark is 5 minutes at a certain time, and the first dark is 30 seconds at a threshold time. It has been identified as state SL2, and considering the case of (F), it has been identified as "state SP3" to the nearest. In this case, when the condition is satisfied that the total time Ts of the last second judgment dark spot time is detected to be “yes” less than the second dark time threshold time, the air purifier 100 reports “ State Sp2 "State has changed. Here, in the example of FIG. 4, the second black at a certain time is 5 minutes, and the second dark at the threshold time is 30 seconds.

The determination time is the first determination time, which is shorter than the determination time and is in the first dark. For example, the determination time is "1 minute" at the first determination time, and the first time is "5 minutes" at a certain time. Therefore, in the air cleaner 100, when the state SL1 is determined, when people are increasingly operating (that is, when changing from the state in the state SP2 to the state SP3), the speed ratio of the state SL2 can purify the air.

In addition, once the state in the state SP3 has been changed immediately so as not to return to the state SP2, in the case of the air cleaner 100, the determination of the state of the air cleaner 100 is stopped for the last 5 minutes. In this state SL2, once the state to state Sp2 has changed immediately, so that Returning to the state SP1 or the condition SP3, the determination of the state of the air cleaner 100 and the air cleaner 100 is stopped for the last 5 minutes.

(Judgment on "Indoor Light / Dark")

The second determination unit 12 refers to the second determination table 130 and determines from the illuminance sensor 32 at least the detection signal of the air purification target chamber R in the bright state SL1 and the air cleaner target chamber R being the dark SL2.

Specifically, the second determination unit 12 compares the illuminance in the air cleaning target room R detected by the illuminance sensor 32 with a predetermined illuminance. The illuminance detection air cleaning target room R determined by the second determination unit 12 is larger than a predetermined illuminance equal to or more than the predetermined illuminance, and the air purification target room R is a bright state SL1. The illuminance of the illuminance sensor 32 determined by the second determination unit 12 is that the air purification target room R is detected, which is smaller than a prescribed illuminance, and the air purification target room R is dark SL2.

[Example 2]

Another embodiment of the present invention will be described with reference to FIGS. 3, 5 and 6. For convenience of explanation, members having the same function as members in the embodiments are described with the same numerals, and descriptions thereof are omitted. 5 is a functional block diagram showing a schematic configuration of an air cleaner 100A according to a second embodiment of the present invention. FIG. 6 is a diagram showing organized operation control in each state of the air cleaning target room R of the air cleaner 100A. Compared with the air cleaner 100, the air cleaner 100A is different from a control unit 10A provided at the control unit 10 instead of a point, and it includes a humidifier 5 and a humidity sensor 35. The other structures are the same.

As shown in FIG. 3, the humidifier 5 is provided between the fan 2 and the air cleaning filter 7. As the humidifier 5, for example, a humidification filter driven by rotation can be used. In this case, the humidification filter is rotatably mounted on a tray filled with water. Pass the humidification filter is through the humidifier filter electricity The driving device of the motive is rotated and driven, and a part of the humidifying filter is submerged in water in the tray, and the water is in the humidifying filter. Therefore, the indoor air taken out from the air inlet 6 in the main body 1 by the fan 2 of the humidification filter evaporates water from the humidification filter, so that the moisture in the taken-in room air can be included. The air containing moisture is supplied into the room from the air outlet 20, and the air in the air purification target room R is humidified. When the target humidity is reached, the operation of the humidifier 5 is stopped.

The humidity sensor 35 detects the humidity in the air purification target room R. The humidity sensor 35 is provided on the front surface of the main body 1, for example.

As shown in FIG. 5, the control section 10A is different from the control unit 10 in the operation control unit 13A of the operation control unit 13 provided at an appropriate position, but other configurations are the same.

In the operation control unit 13A, the first determination unit 11 and the second determination unit 12 use the detection results of the humidity sensor 35 in addition to the determination results of the control of the operating state of Embodiment 1 as follows, as described below. Operation of air control cleaning function.

Specifically, in the operation control unit 13A, as shown in FIG. 6, in the first determination unit 11, when the state SP3 is determined, and the following (1) to (3) are controlled. (1) At least one of the sensor sensitivity levels of the dust sensor 33 and the odor sensor 34 is "high", and (2) when the humidifier 5 is turned on, the amount of air of the fan 2 (3) is increased.

In the operation control section 13A, in the first determination unit 11, when it is determined that the humidifier 5 is turned on in this state SP2, control is performed to increase the air volume of the fan 2. The dust sensor 33 and the odor sensor 34 continue to control the setting contents.

In the motion control section 13A, in the first determination unit 11, when the state SP1 is determined and the (1) humidifier 5 is turned off, control is performed to increase the volume of air of (2). The dust sensor 33 and the odor sensor 34 continue to control the setting contents.

In addition, it is detected that the humidity of the air-cleaning target room R from the humidity sensor 35 reaches the target humidity, and a case where the operation control unit 13A stops the humidifier 5 is considered. In this case, operate the control unit 13A, if the state SL1 air is measured out through the control fan 2 (strongest, strong, medium, weak, thin), if the state SL2 fan 2 air flow four phases (strong, medium, weak) ,it is good).

In addition, a case is considered in which the humidity of the target clean room R from the air of the humidity sensor 35 detects a target humidity of less than 10%. In this case, in the operation control unit 13A, if the state SL1 air volume (strongest, strong, medium, weak) of the fan 24 stage is controlled, if the state SL2 air volume of the fan 2 is three stages (strong, medium, weak) weak).

Consider the case where the humidity of the air purification target room R detected by the humidity sensor 35 is 10% or more of the target humidity. In this case, the control unit 13A is operated if the state SL1 controls the air amount of the fan 2 in one step (strongest), and if the state SL2 is used to control the air volume of the fan 2 in one step (strong).

[Third embodiment]

Another embodiment of the present invention will be described with reference to FIGS. 7 to 9. For convenience of explanation, members having the same functions as those described in the above-mentioned embodiments are denoted by the same reference numerals, and descriptions thereof are omitted. FIG. 7 is a functional block diagram showing a schematic configuration of an air cleaner 100B according to the third embodiment of the present invention. FIG. 8 is a schematic front view showing the air cleaner 100B. The air cleaner 100B compares the air cleaner 100 with a control unit 10B instead of a point of the setting of the control unit 10, and it includes a base 50, which is different in appearance from other structures.

The B configuration of the air cleaner 100 will be described with reference to FIGS. 7 and 8. In the air purifiers 100B7 and 8 shown in the figure, the vehicle body 1B, the fan 2, the display unit 4, the suction port 6B, the air cleaning filter 7, the control unit 10B, the air outlet 20B, the motion sensor 31B, and the illuminance sensor 32, a dust sensor 33, an odor sensor 34, and a base portion 50. To ensure simplicity of description, structure Not directly related to this embodiment can be omitted from the description and drawings. However, according to the actual situation of implementation, the air cleaner 100B may have an omitted configuration.

The suction port 6B is located at the lower part of the side surface of the main body, and sucks air into the inside. An air-purifying filter 7 for removing dust from the sucked air is provided on the main body 1B side of the suction port 6B.

The air outlet 21B is arranged in front of the main body 1B and blows out cleaned air. The air outlet 21B is provided with a louver 22B for changing the wind direction.

The human motion sensor 31B detects the motion of a person in the air cleaning target room R. The human body sensor 31B is configured by a pyroelectric sensor. The human body sensor 31B OFF (driving and stopping driving) is controlled by a motion sensor control unit 16 which will be described later.

The pedestal 50 and the vehicle body 1B are an air cleaner 100B (part of the air cleaner 100B), which is a part of the human sensor 31B provided around a rotation axis extending in the vertical direction.

Specifically, the base portion 50 1B is provided on a main body having an upper surface having a circular shape in a plan view, and the base portion 50 supports the main body 1B. The pedestal 50 is driven by a displacement motor, and a rotation shaft extending approximately in the up-down direction is provided in the base portion 50. A radial center of the vehicle body 1B is provided with a displacement motor (not shown), and the base unit 50 can be opposed to Rotates around the base portion 50. The driving of the pedestal portion 50 is controlled by a rotation control portion 15 described later.

(control unit)

The control unit 10B, the control unit 10, and the operation control unit 13B are used instead of the set points of the operation control unit 13. The difference is that it further includes: the other configurations of the rotation control unit 15 and the motion sensor controller 16 are the same of.

The rotation control unit 15 drives the console seat portion 50. The rotation control unit 15 sets the driving of the pedestal unit 50 to an intermittent operation. Specifically, the rotation control unit 15 includes a main body every time 1B stops at a predetermined angle for a predetermined time to perform a reciprocating displacement (swing motion) to drive the base unit 50.

The rotation control unit 15 and the rotation angle of the vehicle body 1B during the driving of the pedestal 50 are determined based on the detection range of the human sensor 31B. The relationship between the detection range of the rotation angle and the body sensor 31B of the main body 1B will be described in detail later.

The human motion sensor control unit 16 controls the on / off of the human motion sensor 31B. Specifically, when the human motion sensor 31B is turned off (stops driving) when the human motion sensor 31B is turned off, when the base 50 is driven, the base 50 Driven to stop.

Here, in the human body sensor 31B, since it is determined that the human body detects "yes" / "no", there is movement of the heat source in the presence or absence. When the main body 1B itself is equipped with the human body sensor 31B has a swing, the heat source itself even if it does not move Is also incorrectly judged as "yes". However, in the present embodiment, when the vehicle body 1B is rotated by the human power sensor 31B, since the motion sensor 31B is turned off, although the heat source itself does not move, the motion sensor 31B may avoid erroneously determining that the person detection is “present”.

(Rotation angle of the subject and detection range of the body sensor)

The relationship between the detection range of the rotation angle of 9 and the body 1B, and the human body sensor 31B explained in detail with reference to the drawings. (a) and Figure 9 (b). 9 (a) and 9 (b) are diagrams showing the relationship between the rotation angle of the main body 1B and the detection range of the human body sensor 31B.

First, as shown in (a) of the figure. As shown in FIG. 9, the surface 1B of the main body in which the person sensor mounting 31B (the driving of the base 50 has been stopped) is stopped so as to face the left case will be described. Since the main body 1B is stopped, the body sensor 31B is turned on. The detection range of the human body sensor 31B at this time is the area E1 from the initial line S1 to the last line S2. At this time, a line overlapping the start line S1 is defined as a line L1, and a line overlapping the termination line S2 is defined as a line L2.

Then, when the main body 1B starts to rotate in the direction of the arrow, the human body sensor 31B is turned off. Thereafter, as shown in (b) of the vehicle body 1B of FIG. 9, the initial line S1 is the line L2, and the final line S2 is rotated by the angle θ 1 to the position overlapping line L3 and stopped. At this time, the initial line S1 is that when it is rotated to a position beyond the line L2, within a range from the line L2 to the initial line S1, a person cannot be detected in the range. Therefore, it is desirable that the angle θ 1 is determined so that the starting line S 1 is within the range of the region E 1. Therefore, there is no leakage within the range of the detection person.

In addition, since it stops the rotating body 1B because it detects a person at each position, compared to a case where a person is detected in a state where the person sensor is fixed to be constant, a motion sensor 31B in a wider range of people can be detected Here.

In Embodiment 3, in the case where the air cleaning filter 7B is not provided, the illuminance sensor 32, the dust sensor 33, and the odor sensor 34 may be a blower whose function is equipped with the motion sensor 31B.

[Example implemented by software]

Control block (first determination unit 11 (100.100A.100B) of the air filter), the second determination unit 12, operation control unit 13.13A.13B, rotation control unit 15, motion sensor control unit 16, output The value acquisition section 111, the exercise degree determination section 112, the non-detection time measurement unit 113, the resident-non-existence determination unit 114) may be implemented by an integrated circuit (logic circuit formed on an IC chip), etc. (hardware), or It can be realized by using software of a CPU (Central Processing Unit).

In the latter case, the air purifier (100, 100A, 100B) is that the CPU executes a program, which is a software-implemented function instruction, the program and various data can be read by a computer (or CPU) and recorded in ROM (read-only) Memory) or memories (these are referred to as "recording media"), and include a RAM (Random Access Memory) for developing the programs described above. Then, by calculating A machine (or CPU) reads a program from a recording medium and executes the program to achieve the object of the present invention. As the recording medium, "temporary tangible medium", for example, a magnetic tape, a magnetic disk, a card, a semiconductor memory, and a programmable logic circuit can be used. In addition, the program can be provided to the computer via any transmission medium (communication network, broadcast wave, etc.) capable of transmitting the program. Note that an embodiment of the present invention can also be implemented in the form of a data signal embedded in a carrier wave, and the program is implemented by electronic transmission.

[to sum up]

When the air purifier (100, 100A, 100B) according to Embodiment 1 of the present invention is installed, it detects a human operation (31.31B) for detecting the brightness of a room, and an illuminance sensor, a human sensor (32), and an air cleaner. Device, from the detection signal from the human sensor, at least, where there is not one is the air purification target room (R) (SP1), a small operation inside the state to leave one for the air cleaning target indoor conditions (SP2), and determine the stay It operates a first determination unit, which is the air cleaning target room large state (SP3) and (11), from the detection signal of the illuminance sensor, at least, the air cleaning target room is bright (S1), and the second determination unit determines The air cleaning target room is in a dark state (S2) and (12), and the judgment results used by the first judgment unit and the second judgment unit include an operation control unit for controlling the operation of the air purification function and (13 13A. 13B).

According to the above structure, the air filter has at least three states: "there is no one air purification target room, small operations are left in the air purifier target room, and many operations are left in the air purifier target room" three states, " The air cleaning target room is bright, and the dark air cleaning target space is combined in at least two states, that is, to control the execution of the air cleaning function.

Therefore, the air filter not only has a person's air purification target room, but also has a target determined by more / less operations occupied by a person, and can also effectively realize the air purification function.

According to the present invention (100), at least one of the air purifiers of Embodiment 2 further, wherein the odor sensor (34) is configured to detect the dust sensor (33) and the first determination unit that detects odor in the above mode 1 From (11), the operation of the person of the air purification target chamber (R) in a state determined to be a large stay, the operation control unit (13), a dust sensor and an odor sensor, dust and an increased sensitivity level, For detecting odor, and preferably increasing the blowing rate of the air discharged from the ship.

According to the above configuration, when the state of operation is left one is that the air purification target chamber is usually determined, then the dust sensor and the odor sensor have sensitivity levels to detect dust and odor enhancement. Therefore, than in normal operation, only the occurrence of a small amount of dust is detected, and the odor can be removed. As a result, people move actively, the dust is easy to dance, and even in a simple state, the smell and dust can be suppressed.

In addition, when the state of operation is left one is often determined, the air purification target chamber from the blowing itself increases the amount of air released in the device. For this reason, people move actively and the dance is a lot of dust, and even in the state where the smell occurs, it can clean the air quickly.

The air purifier according to the present invention (100), in the above-mentioned embodiment 1 or embodiment 3, further includes a display unit for displaying an operating state of the self-device (4), and the first determination unit (11 ), The air is determined to be a state when a person cleans the target chamber, where it does not exist, then the control unit (13) is operated, and preferably, the brightness of the display unit is suppressed or extinguished.

According to the above structure, when it is possible for human beings to notify the operating state of their own equipment, there is no surrounding air purifier to suppress the brightness of the display unit, or to turn it off. As a result, power consumption can be suppressed.

The air cleaner according to the present invention (100) is determined from one of the three embodiments, and the fourth determination section (12), and the fourth embodiment of the air purification target chamber (R) are the dark operation control section 13 It is preferable to reduce the amount of blowing air from the device.

According to the above structure, when the person is in a quiet state, the air cleaner can be quietly operated. Therefore, it is possible to operate the air purifier without disturbing human behavior.

The air purifier according to Embodiment 5 (100) of the present invention is 4 from any one of Embodiment 1, and the human body sensor (31) is not detected continuously during the non-detection period, and continues for a duration or a first determination The unit (11) determines that the person (R) in the air purification target chamber is in a state in which it does not exist, the duration is bright air purification target chamber, and the dark air purification target chamber is shorter than the above duration.

According to the above configuration, the duration when the state of the dark air purification target chamber is determined is longer than the duration when the state of the bright air purification target chamber is determined. Therefore, a dark air purifier object room, even when not in motion, such as actively sleeping a person, can eliminate the wrong decision not to stay.

According to the present invention (100), in any of the above-mentioned first embodiment 5, the first determination unit (11) and the absence of the air cleaner of the sixth embodiment are determined to be the interior (R) of the air cleaning target chamber If yes, and when the air purifying target chamber is determined to be dark by the second determination unit (12), the control unit (13) is operated and the blowing rate of the air discharged from the ship is as shown in the figure.

According to the above-mentioned structure, in its state, it does not mind noise, and by increasing the air volume of the air discharged from the ship, the air can be quickly purified.

The air purifier according to Embodiment 7 of the present invention (100A), in any one of the above aspects 1 to 6, further comprises a humidifying air purification target chamber (R)-(5). In (11), when a person is determined to be non-existent in the air purification target chamber, it is preferable that the motion control unit (13A) stops the operation of the humidifier and the air unloaded from the ship to control the air blowing rate.

According to the above configuration, it may not be operated. When you leave the humidifier unattended, the power consumption can be reduced. In addition, since there is no need to worry about people who do not stay at the time of noise, by increasing the amount of air supply, the air can be cleaned quickly.

An air purifier according to an eighth embodiment of the present invention (100B), in any one of the above aspects 1 to 7, is provided with a rotary stand extending vertically in a part of the human body sensor (31B) of the air filter. A rotation control unit for rotating around the axis (50), for controlling the base part (15), a motion sensor control unit, for controlling the driving of the motion sensor (16), wherein, all The rotation control unit may intermittently drive the motion sensor control unit in the pedestal portion, and when the pedestal is driven to stop driving the human sensor, the pedestal portion is stopped, preferably the human body sensor.

According to the above structure, when the air purifier, including the human-presence sensor, rotates, the motion sensor can be prevented from erroneously determining that a person is detected by the motion sensor despite the heat source itself not moving due to the stop driving the motion sensor. In addition, for a human body detection at each position where a part of the air cleaner is stopped from being rotated, a motion sensor can be detected compared to a case where human detection is performed in a broader state where a human sensor is fixed to be constant. Here.

According to the present invention (100B), in the air purifiers according to the eighth and ninth embodiments, the rotation control unit drives a rotation angle of a part of the air purifier while driving the base portion, It is best to decide according to the detection range.

According to the above structure, the rotation angle of the portion of the air cleaner is determined by the driving time of the base in the detection range of the human sensor, and the time when the motion sensor has stopped driving while driving the base can cover the human body sensor. Detection of invalid range.

The present invention is not limited to the above embodiments, and various modifications are possible within the scope of the claims. Implementations obtained by appropriately combining technical means disclosed in different embodiments are also included in the technical scope of the present invention. Moreover, by combining the technical means disclosed in each embodiment, new technical features can be formed.

Claims (8)

An air cleaner, which is equipped with a human sensor that detects a person's movement, and an illuminance sensor that detects the brightness in a room, and is characterized in that it includes a first determination unit that detects at least the detection signal from the human sensor. It is determined whether there is a state in which there is no person in the air-purification target room, a state in which there is a small amount of motion in the air-purification target room, or a state in which there is a large amount of motion in the air-purification target room. The detection signal of the controller determines at least which of the bright state and the dim state of the air-purification target room; the operation control unit controls the air purification using the determination results of the first determination unit and the second determination unit. Function operation; and at least one of a dust sensor that detects dust and an odor sensor that detects odor; and when the first determination unit determines that there is a person in the room where the air is cleaned and there are many actions, the The operation control unit increases the sensitivity level of the dust sensor and the odor sensor to detect dust and odor, and enables the amount of air supplied from the air cleaner to be supplied. Plus. For example, the air cleaner of the first patent application scope further includes a display unit that displays the operating state of the air cleaner; when the first determination unit determines that there is no person in the air purification target room, the operation control The unit suppresses or extinguishes the brightness of the display unit. For example, in the air cleaner of the first patent application range, when the second determination unit determines that the room to be air-purified is dim, the operation control unit reduces the amount of air supplied from the air cleaner. For example, if the air purifier for item 1 of the patent application scope, wherein the person sensor does not detect a person continuously for a non-detection period that lasts longer than the duration, the first determination unit determines that there is no person in the room where the air is purged The duration when the room where the air-purification object is bright is shorter than the duration when the room where the air-purification object is dark. For example, in the air cleaner of the first scope of the application, when the first determination unit determines that there is no person in the air purification target room and the second determination unit determines that the air purification target room is dim. The operation control unit performs control to increase the amount of air supplied from the air cleaner. For example, the air purifier of the first patent application scope further includes a humidifier to humidify the room to be air-purified; if the first determination unit determines that there is no person in the room to be air-purified, the operation control unit The operation of the humidifier is stopped and control is performed to increase the amount of air supplied from the air cleaner. For example, the air cleaner of the first patent application scope includes a pedestal portion that rotates a part of the air cleaner provided with the person sensor in the direction of the plumb axis, and a rotation control unit that performs Control of the driving of the pedestal portion; and a human sensor control portion that controls the driving of the human sensor; the rotation control portion makes the driving of the pedestal portion run intermittently; the human sensor control portion is on the pedestal The driving of the human sensor is stopped when the unit is driven, and the human sensor is driven when the pedestal unit is stopped. For example, the air cleaner of the seventh scope of the patent application, wherein the rotation control unit determines the rotation angle of the part of the air cleaner when the pedestal is driven according to the detection range of the human sensor.