CN216158416U - Intelligent faucet control circuit based on TOF laser induction - Google Patents
Intelligent faucet control circuit based on TOF laser induction Download PDFInfo
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- 238000001914 filtration Methods 0.000 claims description 21
- 238000005070 sampling Methods 0.000 claims description 20
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- 230000000087 stabilizing effect Effects 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 3
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Abstract
The utility model discloses an intelligent faucet control circuit based on TOF laser induction, which comprises a TOF laser induction ranging module, an induction indicating module, an induction distance adjusting module, a low-voltage detection module, a main control module, an electromagnetic valve driving module, a voltage conversion module and a power supply module; the power module passes through low pressure detection module with host system electric connection, and pass through voltage conversion module respectively with TOF laser response ranging module, response indicating module, response roll adjustment module, host system and solenoid valve drive module electric connection, host system still respectively with TOF laser response ranging module, response indicating module, response roll adjustment module and solenoid valve drive module electric connection. The intelligent faucet can overcome the defects of insensitive induction and easy interference from external sources in the conventional intelligent faucet.
Description
Technical Field
The utility model relates to the field of bathrooms, in particular to an intelligent faucet control circuit based on TOF laser induction.
Background
The water faucet is a switching device for controlling water flow, and is basically popularized and used in every family, and the common water faucet is only provided with one water inlet and one water outlet and can meet the most basic use function; however, as the living standard of people is continuously improved, people also put higher demands on domestic water.
Most of intelligent faucets in the market control the opening and closing of the faucet in an induction mode according to infrared reflection, the induction is not sensitive enough, and an electric control module driven by an integrated electromagnetic valve is large in size; in addition, because the battery is used for supplying power, the phenomenon that the battery is not powered and cannot be replaced by people in time often occurs, and the battery cannot be used.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing an intelligent faucet control circuit based on TOF laser induction, which can solve the defects of insensitive induction and easy interference from an external source of the existing intelligent faucet.
In order to solve the technical problem, the utility model provides an intelligent faucet control circuit based on TOF laser induction, which comprises a TOF laser induction ranging module, an induction indicating module, an induction distance adjusting module, a low-voltage detection module, a main control module, an electromagnetic valve driving module, a voltage conversion module and a power supply module; the power module passes through low pressure detection module with host system electric connection, and pass through voltage conversion module respectively with TOF laser response ranging module, response indicating module, response roll adjustment module, host system and solenoid valve drive module electric connection, host system still respectively with TOF laser response ranging module, response indicating module, response roll adjustment module and solenoid valve drive module electric connection.
Preferably, the TOF laser-induced ranging module is a time-of-flight distance sensor.
Preferably, the sensing distance adjusting module comprises an infrared receiving unit and a first current limiting unit; one end of the infrared receiving unit is grounded, and the other end of the infrared receiving unit is electrically connected with the main control module and is electrically connected with the output end of the voltage conversion module through the first current limiting unit.
Preferably, the low voltage detection module includes a first sampling voltage division unit, a second sampling voltage division unit and a first filtering unit; one end of the first sampling voltage division unit is electrically connected with the main control module and is electrically connected with the power module through the second sampling voltage division unit, and the other end of the first sampling voltage division unit is grounded; the first filtering unit is connected with the first sampling voltage division unit in parallel.
Preferably, the voltage conversion module includes a voltage stabilizing unit, a second filtering unit and a third filtering unit; the input end of the voltage stabilizing unit is the input end of the voltage conversion module and is grounded through the second filtering unit, and the output end of the voltage stabilizing unit is the output end of the voltage conversion module and is grounded through the third filtering unit.
Preferably, the sensing and indicating module comprises a light emitting diode and a second current limiting unit; one end of the light emitting diode is electrically connected with the main control module through the second current limiting unit, and the other end of the light emitting diode is grounded.
Preferably, the solenoid valve driving module is a solenoid valve driving integrated chip.
Preferably, the intelligent faucet control circuit based on TOF laser sensing further comprises a reminding module, wherein the reminding module comprises an LED reminding unit and a speaker reminding unit; the LED reminding unit and the loudspeaker reminding unit are electrically connected with the main control module.
Preferably, intelligence tap control circuit based on TOF laser response still includes communication module, communication module with master control module and voltage conversion module electric connection, communication module is WIFI communication module or bluetooth communication module.
Preferably, the power module includes a charging unit, a power unit, a first switching unit, a first current limiting unit, and a second current limiting unit; the control end of the first switch unit is electrically connected with the main control module through the first current limiting unit, the input end of the first switch unit is electrically connected with one end of a charging unit through a second current limiting unit, the other end of the charging unit is electrically connected with mains supply, and the output end of the first switch unit is electrically connected with the charging end of the power supply unit; the low-voltage detection module is used for monitoring a voltage signal of the power supply unit, and the main control module is used for controlling the switch of the first switch unit according to the voltage signal.
The beneficial effects of the implementation of the utility model are as follows:
according to the utility model, a human body moving signal is sensed through the TOF laser sensing distance measuring module, the triggering distance of the TOF laser sensing distance measuring module is adjusted through the sensing distance adjusting module, the working state of the TOF laser sensing distance measuring module is indicated through the sensing indication module, the voltage signal of the power supply module is monitored through the low-voltage detection module, and the main control module is used for controlling the on-off state of the electromagnetic valve driving module according to the human body moving signal. The intelligent faucet can overcome the defects that the existing intelligent faucet is insensitive to induction and is easily interfered by an external source.
Drawings
FIG. 1 is a schematic block diagram of an intelligent faucet control circuit based on TOF laser sensing provided by the present invention;
FIG. 2 is a schematic circuit diagram of a master control module provided in the present invention;
FIG. 3 is a schematic circuit diagram of a TOF laser induced ranging module provided by the present invention;
FIG. 4 is a schematic circuit diagram of an inductive tuning module provided in the present invention;
FIG. 5 is a circuit schematic of a low voltage detection module provided by the present invention;
FIG. 6 is a circuit schematic of a voltage conversion module provided by the present invention;
FIG. 7 is a schematic circuit diagram of a sensing and indicating module provided by the present invention;
FIG. 8 is a circuit schematic of a solenoid driver module provided by the present invention;
FIG. 9 is a functional block diagram of a reminder module provided by the present invention;
fig. 10 is a functional block diagram of a power module provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings. It is only noted that the utility model is intended to be limited to the specific forms set forth herein, including any reference to the drawings, as well as any other specific forms of embodiments of the utility model.
As shown in fig. 1, the utility model provides an intelligent faucet control circuit based on TOF laser sensing, which comprises a TOF laser sensing distance measurement module 1, a sensing indication module 2, a sensing distance adjustment module 3, an electromagnetic valve driving module 4, a power supply module 5, a voltage conversion module 6, a low voltage detection module 7 and a main control module 8; the power module 5 passes through low pressure detection module 7 with 8 electric connection of host system, and pass through voltage conversion module 6 respectively with TOF laser response ranging module 1, response indicating module 2, response roll adjustment module 3, host system 8 and 4 electric connection of solenoid valve drive module, host system 8 still respectively with TOF laser response ranging module 1, response indicating module 2, response roll adjustment module 3 and 4 electric connection of solenoid valve drive module. TOF laser induction ranging module 1 is used for responding to human removal signal, response roll adjustment module 3 is used for adjusting TOF laser induction ranging module 1's trigger distance, response indicating module 2 is used for instructing TOF laser induction ranging module 1's operating condition, low pressure detection module 7 is used for monitoring power module 5's voltage signal, main control module 8 is used for the basis human removal signal control solenoid valve drive module 4's on-off state.
It should be noted that, as shown in fig. 2, the main control module 8 is a single chip, and the single chip further includes a peripheral circuit (pull-up resistors R2-R4, pull-down resistor R1, and filter capacitor C3). The singlechip integrates various components such as an arithmetic unit, a controller, a memory, an input/output device and the like, and realizes various functions such as signal processing, data storage and the like. For example, an arithmetic unit includes a large number of comparison circuits, and can perform logical operation processing on a received signal instruction. Preferably, the intelligent faucet control circuit based on TOF laser sensing further comprises a communication module 10, the communication module 10 is electrically connected with the main control module 8 and the voltage conversion module 6, and the communication module 10 is a WIFI communication module or a bluetooth communication module.
According to the utility model, a human body movement signal is sensed through the TOF laser sensing distance measuring module 1, the trigger distance of the TOF laser sensing distance measuring module 1 is adjusted through the sensing distance adjusting module 3, the working state of the TOF laser sensing distance measuring module 1 is indicated through the sensing indication module 2, a voltage signal of the power supply module 5 is monitored through the low-voltage detection module 7, and the main control module 8 is used for controlling the on-off state of the electromagnetic valve driving module 4 according to the human body movement signal. The intelligent faucet can overcome the defects of insensitive induction and easy interference from external sources in the conventional intelligent faucet.
Preferably, the TOF laser sensing ranging module 1 is a time-of-flight distance sensor, which is model VL53LOX, but is not limited thereto; as shown in fig. 3, the TOF laser sensing ranging module 1 further includes a peripheral circuit (filter capacitors C4 and C5, pull-up resistors R6 and R5).
It should be noted that compared with laser sensing, infrared reflection sensing has the characteristics of weak response sensitivity, poor accuracy of sensing distance, easy interference from external sources, and the like; conventional reflective laser sensing has a poorer range accuracy than time-of-flight range sensor schemes. This embodiment adopts time of flight distance sensor as TOF laser induction range module 1, and the built-in laser of sensor receives and dispatches the function, forms the reflection with the shelter after through calculating laser emission and gets back to the used reflection time on receiving device surface to calculate the induction distance, can promote induction sensitivity, induction distance and set for accuracy and interference killing feature.
As shown in fig. 4, preferably, the sensing distance adjusting module 3 is an infrared sensing module, and the sensing triggering distance can be adjusted and sensed anytime and anywhere through an external infrared remote controller. The induction distance adjusting module 3 comprises an infrared receiving unit D2 and a first current limiting unit R10; one end of the infrared receiving unit D2 is grounded, and the other end is electrically connected to the main control module 8(PA1 port and the output end of the voltage converting module 6(3V3) through the first current limiting unit R10.
It should be noted that, in this embodiment, D2 is a 940nm wavelength infrared receiving tube PT17-21B/L41/TR8, but is not limited thereto, if a user needs to adjust the U2 sensing trigger distance, an arbitrary 940nm wavelength infrared remote controller can be used to freely set the sensing trigger distance, so that this embodiment supports an external commonly used infrared remote controller to adjust the sensing trigger distance anytime and anywhere, so as to meet different use scenarios and requirements of the user.
As shown in fig. 5, preferably, the low voltage detection module 7 includes a first sampling voltage dividing unit R9, a second sampling voltage dividing unit R8, and a first filtering unit C6; one end of the first sampling voltage-dividing unit R9 is electrically connected to the master control module (AD port) and is electrically connected to the power module 5(VBAT) through the second sampling voltage-dividing unit R8, and the other end of the first sampling voltage-dividing unit R9 is grounded; the first filtering unit C6 is connected in parallel with the first sampling voltage dividing unit R9.
It should be noted that, in this embodiment, the first sampling voltage dividing unit R9 and the second sampling voltage dividing unit R8 are used to collect voltage signals of the power module 5, calculate the remaining power, and notify the user or the related staff to replace the power module through the communication module 10 when the remaining power is smaller than the preset value; noise waves in the circuit are filtered through the first filtering unit C6, and the accuracy of voltage detection is improved.
As shown in fig. 6, preferably, the voltage conversion module 6 includes a voltage regulation unit U3, a second filtering unit C1, and a third filtering unit C2; the input end of the voltage regulation unit U3 is the input end of the voltage conversion module 6 and is grounded through the second filtering unit C1, and the output end of the voltage regulation unit U3 is the output end of the voltage conversion module 6 and is grounded through the third filtering unit C2.
In this embodiment, U3 is a linear regulator, which is used to convert the primary power voltage into a +3.3V constant voltage and output the constant voltage to the back-end load, but is not limited thereto; noise in the circuit is filtered by the second filtering unit C1 and the third filtering unit C2, and the stability of power supply is improved.
As shown in fig. 7, preferably, the sensing and indicating module 2 includes a light emitting diode D1 and a second current limiting unit R7; one end of the light emitting diode D1 is electrically connected to the main control module 8(LED port) through the second current limiting unit R7, and the other end is grounded.
In this embodiment, D1 is a blue led, and when the led is triggered by sensing, D1 is turned on to prompt, but not limited thereto; the second current limiting unit R7 is used for limiting current, so that electronic components are prevented from being burnt.
As shown in fig. 8, the solenoid valve driving module is preferably a solenoid valve driving integrated chip, but is not limited thereto.
As shown in fig. 9, preferably, the intelligent faucet control circuit based on TOF laser sensing further includes a reminding module, where the reminding module includes an LED reminding unit 91 and a speaker reminding unit 92; the LED reminding unit 91 and the speaker reminding unit 92 are electrically connected to the main control module 8.
It should be noted that, in this embodiment, the low voltage detection module 7 is configured to monitor a voltage signal of the power module 5, calculate the remaining power of the power module, and remind the power module through the LED reminding unit 91 and the speaker reminding unit 92 when the remaining power is smaller than a preset value, so as to replace the power module in time.
As shown in fig. 10, preferably, the power module 5 includes a charging unit 51, a power supply unit 52, a first switching unit 53, a first current limiting unit 54, and a second current limiting unit 55; the control end of the first switch unit 53 is electrically connected to the main control module 8 through the first current limiting unit 54, the input end of the first switch unit 53 is electrically connected to one end of the charging unit 51 through the second current limiting unit 55, the other end of the charging unit 51 is electrically connected to the utility power, and the output end of the first switch unit 53 is electrically connected to the charging end of the power supply unit 52; the low voltage detection module 7 is configured to monitor a voltage signal of the power supply unit 52, and the main control module 8 is configured to control the switch of the first switch unit 53 according to the voltage signal.
It should be noted that, in this embodiment, the low voltage detection module 7 is configured to monitor a voltage signal of the power module 5, and calculate the remaining power of the power module, when the remaining power is smaller than a preset value, the first switch unit is turned on, and the mains supply charges the power unit through the charging unit until the power unit is fully charged; the first current limiting unit 54 and the second current limiting unit 55 perform a current limiting function, thereby preventing electronic components from being burned out.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model.
Claims (10)
1. An intelligent faucet control circuit based on TOF laser induction is characterized by comprising a TOF laser induction ranging module, an induction indicating module, an induction distance adjusting module, a low-voltage detection module, a main control module, an electromagnetic valve driving module, a voltage conversion module and a power supply module;
the power module passes through low pressure detection module with host system electric connection, and pass through voltage conversion module respectively with TOF laser response ranging module, response indicating module, response roll adjustment module, host system and solenoid valve drive module electric connection, host system still respectively with TOF laser response ranging module, response indicating module, response roll adjustment module and solenoid valve drive module electric connection.
2. The intelligent TOF laser sensing-based faucet control circuit of claim 1, wherein the TOF laser sensing ranging module is a time-of-flight distance sensor.
3. The intelligent faucet control circuit based on TOF laser induction of claim 1, wherein the induction distance adjusting module comprises an infrared receiving unit and a first current limiting unit;
one end of the infrared receiving unit is grounded, and the other end of the infrared receiving unit is electrically connected with the main control module and is electrically connected with the output end of the voltage conversion module through the first current limiting unit.
4. The intelligent faucet control circuit based on TOF laser induction of claim 1, wherein the low voltage detection module comprises a first sampling voltage division unit, a second sampling voltage division unit and a first filtering unit;
one end of the first sampling voltage division unit is electrically connected with the main control module and is electrically connected with the power module through the second sampling voltage division unit, and the other end of the first sampling voltage division unit is grounded;
the first filtering unit is connected with the first sampling voltage division unit in parallel.
5. The intelligent faucet control circuit based on TOF laser induction of claim 1, wherein the voltage conversion module comprises a voltage stabilization unit, a second filtering unit, and a third filtering unit;
the input end of the voltage stabilizing unit is the input end of the voltage conversion module and is grounded through the second filtering unit, and the output end of the voltage stabilizing unit is the output end of the voltage conversion module and is grounded through the third filtering unit.
6. The intelligent faucet control circuit based on TOF laser induction of claim 1, wherein the induction indication module comprises a light emitting diode and a second current limiting unit;
one end of the light emitting diode is electrically connected with the main control module through the second current limiting unit, and the other end of the light emitting diode is grounded.
7. The intelligent faucet control circuit based on TOF laser sensing of claim 1, wherein the solenoid driver module is a solenoid driver integrated chip.
8. The intelligent faucet control circuit based on TOF laser induction of claim 1, further comprising a reminder module, the reminder module comprising an LED reminder unit and a speaker reminder unit;
the LED reminding unit and the loudspeaker reminding unit are electrically connected with the main control module.
9. The intelligent faucet control circuit based on TOF laser induction of claim 1, further comprising a communication module, the communication module being electrically connected to the main control module and the voltage conversion module, the communication module being a WIFI communication module or a Bluetooth communication module.
10. The intelligent faucet control circuit based on TOF laser induction of any one of claims 1 to 9, wherein the power supply module comprises a charging unit, a power supply unit, a first switch unit, a first current limiting unit and a second current limiting unit;
the control end of the first switch unit is electrically connected with the main control module through the first current limiting unit, the input end of the first switch unit is electrically connected with one end of a charging unit through a second current limiting unit, the other end of the charging unit is electrically connected with mains supply, and the output end of the first switch unit is electrically connected with the charging end of the power supply unit;
the low-voltage detection module is used for monitoring a voltage signal of the power supply unit, and the main control module is used for controlling the switch of the first switch unit according to the voltage signal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121700006.1U CN216158416U (en) | 2021-07-23 | 2021-07-23 | Intelligent faucet control circuit based on TOF laser induction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121700006.1U CN216158416U (en) | 2021-07-23 | 2021-07-23 | Intelligent faucet control circuit based on TOF laser induction |
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| CN216158416U true CN216158416U (en) | 2022-04-01 |
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| CN202121700006.1U Active CN216158416U (en) | 2021-07-23 | 2021-07-23 | Intelligent faucet control circuit based on TOF laser induction |
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- 2021-07-23 CN CN202121700006.1U patent/CN216158416U/en active Active
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