JPH0767190A - Remote control unit - Google Patents

Abstract

PURPOSE:To prevent a third person from knowing an unlocked state and to improve the safety by entering a locking wait state once an unlocking code is sent from a transmitter and unlocking the doors when the outer handle of a vehicle is operated. CONSTITUTION:When a switch is operated, the transmitted code generation part of the transmitter generates a transmitted code consisting of a characteristic code and a locking or unlocking code and the code is sent by the transmitter. This signal is received by a receiver of the vehicle and then the received signal decision part 14 of the receiver 10 decides the characteristic code and locking or unlocking code. When the characteristic code matches and the locking code is decided, the doors of the vehicle are locked, but when the unlocking code is decided, the doors are placed in the unlocking wait state. When the outer handle of the vehicle is operated so that the door is open, a request signal generation part 20 sends a request signal from the side of the receiver 10. The transmitter once receiving this signal sends the characteristic code and unlocking code. The receiver 10 unlocks the doors when receiving this signal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control device for opening and closing a vehicle door.

[0002]

2. Description of the Related Art Conventionally, a keyless entry device for opening and closing a door of a vehicle by using a transmitter instead of a key has been put into practical use. In such a keyless entry device, when the driver operates the transmitter from outside the vehicle, a signal of a predetermined ID code is transmitted from the transmitter and received by the receiver of the vehicle. When the ID code signal matches the code held in the receiver, the vehicle door is unlocked or locked.

[0003]

In such a remote control device used in the conventional keyless entry device, if a switch is operated in front of the vehicle by a portable transmitter to unlock the door, people around the vehicle door will be unlocked. It is recognized to open the. Therefore, there is a problem that the theft may be attacked at that time. Also, when the transmitter is operated from a distance rather than near the vehicle and the vehicle door is unlocked, the lock knob position of the vehicle changes and it is known that the vehicle is in the unlocked state. There was a problem that they could be stolen before they arrived.

Further, in Japanese Patent Laid-Open No. 63-40074, there is proposed a device which does not require a switch operation of a vehicle for starting control by remote control. By operating the outer handle of the vehicle door, an access signal for unlocking signal transmission is transmitted from the vehicle side to the transmitter,
It is a device that locks or unlocks the door after confirming the coincidence by the receiver on the vehicle side when the personal identification number is transmitted from the transmitter. However, in this method, when the owner operates the outer handle to check the lock after locking, it is recognized as an operation for unlocking, and the locked door is unlocked. was there. In addition, there is also a drawback that there is a time lag before the door is opened because bidirectional communication between the transmitter and the receiver is started after operating the outer door handle.

The present invention has been made in view of the above conventional problems, and the lock mechanism such as the lock knob does not operate even when the door of the vehicle is unlocked, thereby improving safety. The purpose is to do so.

[0006]

According to a first aspect of the present invention, there is provided a remote control device for a vehicle door lock having a transmitter and a receiver, wherein the transmitter is a unique code unique to the transmitter. A first code storage unit that stores a lock code, an unlock code, and a request code, a first reception unit that receives a signal from a receiver and demodulates a code signal, and a request obtained from the first reception unit A request signal determination unit that determines the match between the code signal and the request code held in the code storage unit and outputs a match determination signal, and transmits a unique code and a lock or unlock code based on the switch input of the transmitter. A transmission code creation unit that creates a code signal and creates a unique code and an unlock code as a transmission code signal based on the match determination signal from the request signal determination unit; A first transmitting unit for transmitting the transmission code signal created by the transmission code creating unit, and the receiver includes a second receiving unit for receiving the signal from the transmitter and demodulating the code signal. , A second transmitter for transmitting a request signal, a second code storage unit for storing the same unique code, lock code, unlock code and request code as the corresponding transmitter, and a second receiver Connected to the received signal discriminating section that discriminates the unique code and the locking code or the unlocking code based on the received signal and outputs the locking signal when the locking code is discriminated, and the vehicle outer door switch, and the code storage section A request to read the unique code and the request code held in to generate a request signal and output the request signal to the second transmission unit when the outer door handle is operated. Unlock control that starts the operation of the request signal creation unit when the unlock code is determined by the signal creation unit and the reception signal determination unit, and outputs the unlock signal when the unlock code is continuously determined Means and are provided.

The invention according to claim 2 of the present application is a remote control device for controlling a door lock of a vehicle having a transmitter and a receiver, wherein the transmitter is a unique code, a locking code and an unlocking unique to the transmitter. A first code storage unit that stores a code, a transmission code creation unit that creates a unique code and a locking or unlocking code as a transmission code signal based on a switch input of a transmitter, and a transmission code creation unit And a receiver for receiving the signal from the transmitter and demodulating the code signal, and the same unique code, lock code, and lock code as those of the corresponding transmitter. A second code storage unit that stores an unlock code, and a unique code and a locking code or an unlock code are determined based on a received signal from the receiving unit,
Connected to the reception signal determination unit that outputs a lock signal when the lock code is determined, and the outer door switch of the vehicle,
And an unlocking control means for outputting an unlocking signal when the outer door handle is operated after the unlocking code is determined by the reception signal determining section.

In the invention of claim 3 of the present application, the unlocking control means returns to the initial state when the outer handle switch is not turned on within a predetermined time.

[0009]

According to the invention of claim 1 of the present application having such a feature, when the switch is operated from the transmitter, the transmission code including the unique code and the locking or unlocking code is generated by the transmission code generating section of the transmitter. And sent. If this signal is received by the receiver of the vehicle, the lock or unlock code is determined by the reception signal determination unit on the receiver side. If the lock code is determined, the vehicle door is locked, and if the unlock code is determined, the unlock standby state is entered. When the outer door handle of the vehicle is operated to open the door, the request signal is transmitted from the receiver side by the request signal generator. When the transmitter receives this signal, it transmits the unique code and the unlock code. When the receiver receives this signal, the door is unlocked by the unlocking control means.

According to the second aspect of the present invention, when a switch is operated by the transmitter, a transmission code including a unique code and a lock or unlock code is generated and transmitted by the transmission code generator of the transmitter. If this signal is received by the receiver of the vehicle, the lock or unlock code is determined by the reception signal determination unit on the receiver side. If the lock code is determined, the vehicle door is locked, and if the unlock code is determined, the unlock standby state is entered. When the outer door handle of the vehicle is operated to open the door, the vehicle door is controlled to be unlocked. Further, in the invention of claim 3 of the present application, the unlocking waiting state is limited to a predetermined time, and if the outer handle is not operated within this time, it is returned to the locked state.

[0011]

1 is a block diagram showing the structure of a transmitter of a remote control device according to a first embodiment of the present invention, and FIG. 2 is a block diagram showing the structure of a receiver. As shown in the figure, the remote control device is composed of a transmitter 1 and a receiver 10 provided on the vehicle side. The transmitter 1 is for transmitting a door lock signal and a door unlock signal. The transmitter 1 is used for transmitting a code signal, and has a transmission switch 2 for inputting locking and unlocking. Further, a common code common to the transmitters / receivers 1 and 10, a locking code for locking, an unlocking code for unlocking, and a first code storage unit 3 for storing a request code used for a purpose described later are provided. The outputs of the transmission switch 2 and the code storage unit 3 are given to the transmission code creation unit 4. The transmission code creating unit 4 creates a transmission signal in which a unique code and a locking code or an unlocking code are combined according to the type of the transmission switch 2 as described later, and outputs the transmission signal to the first transmitting unit 5. The transmitting unit 5 transmits the transmission code created by the transmission code creating unit 4, and includes an antenna switching unit 6 and an antenna 7.
Is output via. The first receiving unit 8 is connected to the antenna 7 via the antenna switching unit 6. The receiving section 8 demodulates the received signal, and its output is given to the request signal determining section 9. The request signal discriminating unit 9 discriminates whether or not the received request code matches the request code stored in the code storage unit 3, and if they coincide with each other, outputs a coincidence discriminating signal to the transmission code creating unit 4 to uniquely It controls to create a code and an unlock code.

Next, FIG. 2 is a block diagram showing the configuration of the receiver 10. An antenna switching unit 12 is connected to the receiver 10 via an antenna 11. The antenna switching unit 12 switches the antenna 11 for use in transmission and reception, and a reception signal is given to the second reception unit 13 at the time of reception. The reception unit 13 demodulates a series of code signals from the transmitted signal, and the output thereof is given to the reception signal determination unit 14. Further, the receiver 10 is also provided with a second code storage unit 15 for storing a unique code, a lock code, an unlock code, and a request code which are common to the transceiver. The reception signal discriminating unit 14 discriminates the unique code signal, the locking code or the unlocking code, compares the unique code stored in the code storage unit 15 with the locking code, the unlocking code, If the lock code matches, the lock signal is output to the door lock control mechanism 16. Further, an unlock control means 17 for controlling unlocking of the door is connected to the received signal discriminating section 14. A reset unit 18 that resets a request flag used for unlock control at the time of initial operation is connected to the unlock control unit 17.

Further, an outer handle switch 19 indicating that the outer handle is operated is connected to an outer handle provided outside the vehicle door and used for opening and closing the door, and an operation signal of the switch 19 is connected. Is input to the request signal generator 20 of the receiver 10.
The request signal creation unit 20 uses the unique code read from the code storage unit 15 based on the outer handle operation signal,
A request signal including a request code is given to the second transmitter 21. The transmitting unit 21 sends a request signal from the antenna 11 via the antenna switching unit 12.

Next, the operation of this embodiment will be described with reference to the flow chart. FIG. 3 is a flowchart showing the operation of the transmitter 1. In the figure, when the transmitter 1 starts its operation, first, in steps 31 and 32, it is checked whether the transmission switch 2 is turned on or a signal is received. When the transmission switch 2 is pressed and turned on, the routine proceeds to step 33, where the lock code or the unlock code corresponding to the unique code of the transmitter and the transmission switch 2 is read from the code storage unit 3. Then, the process proceeds to steps 34 and 35 to create a transmission signal, and the transmission unit 5 transmits the signal to complete the process.

On the other hand, the receiver 10 waits for the reception of a signal in the flow charts shown in FIGS. 4 and 5, and if the signal is received, the process proceeds from step 51 to 52 and the unique code,
Read the lock code and unlock code. And step 53
Go to and determine whether the unique codes match. If they do not match, the process ends, and if they match, step 5
The procedure proceeds to steps 4 and 55 to determine whether the unlock code or the lock code matches. If these received codes do not match, the process is terminated, and if they match the lock code, the routine proceeds to step 56, where a lock signal is output to the door lock control mechanism 16 to finish the process. On the other hand, if it coincides with the unlock code, the process proceeds to step 57 of FIG. 5 to read the request flag (RQF in the figure) and check whether this flag is cleared or not. If the request flag is initially cleared by the reset unit 18, the process proceeds to steps 59 and 60 to set the request flag, and the unique code and the request code are read from the code storage unit 15. Then, in step 61, a request signal including a unique code and a request code is created. Next, the routine proceeds to step 62, where it waits for a switch signal to be input from the outer handle switch 19 of the vehicle. The unlocking is not performed until the outer handle is operated, and this state is called the unlocking standby state. When the outer handle of the vehicle is operated and the outer handle switch 19 is turned on, the process proceeds from step 62 to step 63 to transmit the request signal to the transmitter 1.

On the other hand, the transmitter 1 waits for the transmission switch 2 to be turned on and the signal to be received in steps 31 and 32.
When the request signal from the receiver 10 is received, the process proceeds to step 36 to read the unique code and the request code from the code storage unit 3 in the transmitter 1. Then, in step 37, it is determined whether or not the unique code held and the received unique code match. If they do not match, the process ends. If they match, the process proceeds to step 38 to determine whether the request codes match. If this code also does not match, the process is terminated. If they match, the process proceeds to step 39 to read the unique code and unlock code. And create a transmission code signal containing the unlock code,
The process proceeds to step 41 and this signal is transmitted to complete the process. Here, the transmitter 1 determines the request signal discriminating unit 9 that discriminates the request signal received in steps 36 to 38.
Has been achieved, and steps 33 to 35 and 39 to
In 41, a transmission code creation for generating a transmission signal of a locking / unlocking code corresponding to the transmission switch, and generating and transmitting a transmission signal including the unlocking code when the coincidence determination signal is obtained from the request signal determination unit 9 The function of part 4 is achieved.

In this way, step 51 is performed on the receiver 10 side.
The same processing is repeated up to 54 and 57. Since the request flag has already been set in step 58 of FIG. 5, the process proceeds from step 58 to step 64 to clear this request flag. Then, in step 65, an unlock signal is output to the door lock control mechanism 16 to end the processing. Here, in the receiver 10, steps 52 to 55 are the functions of the reception signal discriminating unit 14 for discriminating whether or not the unique code and the unlocking code among the reception signals match the respective codes held in the code storage unit 15. Achieved, and in steps 57 to 59 and 64, 65, when it matches the unlock code, the request signal can be transmitted at the first match based on the request flag, and unlocked when the second unlock code matches. The function of the unlocking control means 17 for controlling so as to perform is achieved. In addition, the function of the request signal creating unit 20 that generates a request signal when the unlock code is first matched in steps 60 to 63 and transmits this signal when the outer door handle is operated is achieved.

In this embodiment, the unlock control means 17 of the receiver is used.
Waits until the outer handle switch is turned on in the unlocking waiting state of step 62, but if the outer handle switch is not turned on within a certain time, the request flag is reset without transmitting a request signal. You may make it complete | finish.

As is known from the above operation, the transmitter 1
Even if the transmission signal including the unlocking code is transmitted from the vehicle, the door of the vehicle is not immediately unlocked, and the vehicle enters the unlocking standby state. Therefore, the locked state is maintained in appearance and safety is ensured. If the vehicle user operates the outer door handle, the request signal is immediately sent from the vehicle receiver, and the transmitter automatically sends a transmission signal including the unlock code again to unlock the vehicle. A person can use it as a transmitter for controlling locking and unlocking without feeling uncomfortable.

Next, a second embodiment of the present invention will be described. FIG. 6 is a block diagram showing the overall configuration of the remote control device according to the second embodiment. 1st in this figure
The same parts as those in the embodiment are designated by the same reference numerals and detailed description thereof will be omitted. Unlike the first embodiment, the transmitter 1A of the present embodiment does not have a receiving unit and a request signal discriminating unit, and is composed of a transmission switch 2, a code storage unit 3A, a transmission code creation unit 4, and a transmission unit 5. The code storage unit 3A stores the unique code, the lock code, and the unlock code, and does not store the request code. In the transmitter 1A, the unique code and the locking or unlocking code are read from the code storage unit 3A by operating the transmission switch 2, and the transmission code is created and output from the transmission unit 5.

On the other hand, the receiver 10A includes a receiving section 13, a received signal discriminating section 14, a code storage section 15A and an unlock control means 17A.
have. Like the transmitter 1A, the code storage unit 15A stores a unique code, a lock code, and an unlock code. The signal received via the antenna 11 and the receiving unit 13 and demodulated is discriminated by the received signal discriminating unit 14 as the unique code, the lock code, and the unlock code held in the code storage unit 15A. When the unique code and the lock code match, a lock signal is output to the door lock control mechanism 16 to lock the vehicle door. When the unlock code signal is output, it is output to the unlock control means 17A. An outer handle switch 19 of the vehicle is connected to the unlock control means 17A, and it is checked whether or not the outer handle switch 19 is turned on within a certain time after the unlock code signal is detected. The outer handle is operated within a certain time and the outer handle switch 1
When 9 is turned on, an unlocking signal is output to the door lock control mechanism 16, and unlocking is stopped if this signal is not obtained within a fixed time.

In this way, if the unlocking code signal is output from the portable transmitter 1A and the door handle is lifted and the door is opened within a predetermined time, the unlocking state is immediately established.
You can open the door without any discomfort.

At this time, the outer handle may be unlocked when the outer handle is continuously operated a plurality of times.
In this case, a third party who does not know that a predetermined number of operations are necessary considers that the vehicle is locked when it cannot be opened by one operation. Therefore, the safety can be further improved. In the present embodiment, the unlocking control means 17A is designed to return from the standby state to the normal locked state unless the outer handle switch 19 is turned on after a fixed time, but without using this time limit, the outer handle switch is not used. The standby state may be continued until 19 is operated.

[0024]

As described above in detail, according to the invention of claim 1 of the present application, when the unlock code is transmitted from the transmitter, the unlocking standby state is established, and the door is locked when the outer handle of the vehicle is operated. Will be unlocked. Therefore, the unlocked state is not known to a third party, and the safety is improved. Further, in the invention of claim 2, when the unlock code is transmitted from the transmitter, the unlocking standby state is set, and when the outer handle is subsequently operated, the unlocking state is set. Therefore, the safety of the vehicle can be improved with a relatively simple structure. According to the second aspect of the invention, since the bidirectional communication is not performed after the outer handle is operated, there is no time lag and the driver does not feel uncomfortable. Further, according to the invention of claim 3, even if it is in the unlocking waiting state, the original locked state is restored unless the outer handle is operated after a certain time, so that there is an effect that the safety is further improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a transmitter according to a first exemplary embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a receiver according to the first exemplary embodiment of the present invention.

FIG. 3 is a flowchart showing the operation of the transmitter of this embodiment.

FIG. 4 is a flowchart (part 1) showing the operation of the receiver of the present embodiment.

FIG. 5 is a flowchart (part 2) showing the operation of the receiver according to the present embodiment.

FIG. 6 is a block diagram showing an overall configuration of a remote control device according to a second embodiment of the present invention.

[Explanation of symbols]

 1,1A transmitter 2 transmission switch 3,3A, 15,15A code storage unit 4 transmission code creation unit 5,21 transmission unit 6,12 antenna switching unit 7,11 antenna 8,13 reception unit 9 request signal determination unit 10, 10A receiver 14 reception signal discriminating unit 16 door lock control mechanism 17, 17A unlocking control means 18 reset unit 19 outer handle switch 20 request signal generation unit

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Taiji Yoshikawa, 10th Hanazono Todocho, Ukyo-ku, Kyoto, Kyoto Prefecture Omron Co., Ltd. (72) Inventor, Satoshi Noda 10th Hanazono Todocho, Kyoto, Kyoto-shi Within the corporation

Claims (3)

[Claims] 1. A remote control device for vehicle door lock control, comprising a transmitter and a receiver, wherein the transmitter stores a unique code, a lock code, an unlock code and a request code unique to the transmitter. A first code storage unit, a first reception unit that receives a signal from the receiver and demodulates a code signal, a request code signal obtained from the first reception unit, and a code storage unit that holds the request code signal. The request signal discriminating section that discriminates the coincidence with the request code and outputs the coincidence discrimination signal, and the unique code and the lock or unlock code are created as the transmission code signal based on the switch input of the transmitter, and the request signal discrimination is performed. A transmission code creation unit that creates a unique code and an unlock code as a transmission code signal based on a match determination signal from the unit; A first transmitting unit for transmitting a transmission code signal generated by the unit, the receiver comprising a second receiving unit for receiving the signal from the transmitter and demodulating the code signal; A second transmitting section for transmitting a signal; a second code storing section for storing the same unique code, locking code, unlocking code and request code as the corresponding transmitter; and reception from the second receiving section It is connected to an outer door switch of the vehicle, which is connected to an outer door switch of the vehicle, and the code storage unit which discriminates the unique code and the locking code or the unlocking code based on the signal and outputs the locking signal when the locking code is discriminated. A request for reading out the unique code and the request code held in the request signal, generating a request signal, and outputting the request signal to the second transmitter when the outer door handle is operated. The operation of the request signal generation unit is started when the unlock code is determined by the reception signal determination unit and the reception signal determination unit, and the unlock signal is output when the unlock code is continuously determined. A remote control device comprising: unlock control means. 2. A remote control device for vehicle door lock control, comprising a transmitter and a receiver, wherein the transmitter stores a unique code, a lock code and an unlock code unique to the transmitter. A code storage unit, a transmission code creation unit that creates a unique code and a locking or unlocking code as a transmission code signal based on a switch input of the transmitter, and a transmission code signal created by the transmission code creation unit And a receiver that receives the signal from the transmitter and demodulates the code signal, and the same unique code, lock code, and unlock code as the corresponding transmitter. A second code storage unit to be stored, and a unique code and a locking code or an unlocking code are determined based on a received signal from the receiving unit, and a locking code is determined. When the outer door handle is operated after the unlock signal is connected to the vehicle's outer door switch, which outputs a lock signal, and when the outer door handle is operated. An unlocking control means for controlling the remote control device. 3. The unlocking control means returns to an initial state when the outer handle switch is not turned on within a predetermined time.
The described remote control device.