JP2817108B2 - Transceiver - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission / reception apparatus which receives a unique code transmitted from a transmitter by a receiver and determines whether the received unique code matches a preset registration code.

[0002]

2. Description of the Related Art An infrared lock / unlock device for a vehicle disclosed in, for example, Japanese Patent Application Laid-Open No. 64-24979 is one to which this type of transmission / reception device is applied. This device has a technology in which when a rotor of a door cylinder lock is rotated by operating a door key, the rotation is detected and a unique code transmitted from a transmitter is registered in a memory as a setting code. Therefore, when the transmitter breaks down or is lost, it is not restricted by the setting code registered in the memory of the receiver, and the receiving procedure is performed using the transmitter having another unique code according to the above-described procedure. The unique code can be re-registered in the machine memory as a setting code.

[0003]

However, if another unique code is to be re-registered in accordance with the above-described procedure using this device, an operation such as inserting a door key into a door cylinder lock and turning it once is performed. And tended to be cumbersome. That is, in the conventional transmission / reception device, in order to re-register another unique code in the memory of the receiver, the user is required to perform the mechanical operation on the receiver side as described above.

[0004] It is an object of the present invention to provide a transmission / reception apparatus that can change a setting code on a receiver side only by operating a transmitter.

[0005]

In order to achieve the above object, a transmitting and receiving apparatus according to the present invention includes a transmitter for transmitting a unique code and a transmitter for separately receiving the unique code transmitted by the transmitter. A transmission / reception device including a receiver having first and second receiving means and used for controlling a single controlled object, wherein the receiver stores a setting code, and the storage means Determining means for determining a match between the setting code registered in the first receiving means and the unique code received by the first receiving means; and the second receiving means provided independently of the first receiving means. Setting code registering means for registering the unique code received by the means as a setting code in the storage means.

Further, the transmitting / receiving apparatus of the present invention includes a transmitter for transmitting a unique code, and a receiver having first and second receiving means for receiving the unique code transmitted by the transmitter. The transmission / reception device, wherein the receiver registers a setting code, and determines whether the setting code registered in the storage unit matches the unique code received by the first receiving unit. Determining means, registration permitting means for permitting registration of the setting code in the storage means in accordance with the unique code received by the second receiving means, and, in accordance with the permission of the registration permitting means, the first or the second Setting code registering means for registering the unique code received by the second receiving means in the storage means as a setting code.

Further, the transmitting / receiving apparatus of the present invention includes a transmitter for transmitting a unique code, and a receiver for receiving the unique code transmitted by the transmitter, and the receiver registers a setting code. A transmitting / receiving device comprising: a storage unit that performs the setting and a determination unit that determines whether the setting code registered in the storage unit matches the received unique code. A first transmission unit for transmitting a command code for permitting registration of a setting code; and a second transmission unit for transmitting the unique code following the command code transmitted by the first transmission unit. At the same time, the receiver sets the unique code transmitted by the second transmission unit as a setting code in the storage unit based on the command code transmitted by the first transmission unit. Comprising a setting code registration means for registering.

[0008]

The transmitting and receiving apparatus of the present invention transmits a unique code by a transmitter, and when the unique code transmitted by the transmitter is separately received by the first and second receiving means, The setting code is registered by the storage means provided in the apparatus, and the determination code determines whether the setting code registered in the storage means matches the unique code received by the first receiving means. The unique code received by the second receiving means provided independently of the first receiving means by the registration means is registered as a setting code in the storage means.

Further, the transmitting / receiving apparatus of the present invention transmits a unique code by a transmitter, and transmits the unique code transmitted by the transmitter to a first and a second provided in a receiver.
When receiving by the receiving means, the setting code is registered by the storing means provided in the receiver, and the setting code registered in the storing means and the unique code received by the first receiving means are registered. A match is determined by the determination means, and registration of the setting code in the storage means is permitted by the registration permission means in accordance with the unique code received by the second receiving means. The first or second registration means
The unique code received by the receiving means is registered as a setting code in the storage means.

Further, the transmission / reception apparatus of the present invention transmits a unique code by a transmitter, receives the unique code transmitted by the transmitter by a receiver, and sets by a storage means provided in the receiver. Registering the code, when determining by the determination means coincidence of the setting code registered in the storage means and the received unique code,
A command code for permitting registration of the setting code in the storage means is transmitted by a first transmission means provided in the transmitter, and a second transmission is performed following the command code transmitted by the first transmission means. Means for transmitting the unique code, and based on the command code transmitted by the first transmitting means, the unique code transmitted by the second transmitting means by the setting code registering means provided in the receiver. The code is registered as a setting code in the storage means.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a transmitting / receiving apparatus according to the present invention will be described with reference to the drawings.

[First Embodiment] FIG. 1 is a block diagram showing an electrical configuration of a vehicle lock control device 10 to which the transmitting / receiving device of the first embodiment is applied. Vehicle lock control device 10
Are a control unit 20 for controlling the entire control, a door lock actuator 25 for driving a door lock device 28 according to a control signal from the control unit 20, and first and second units for receiving infrared signals from a door key 31.
Receivers 34, 36, a code storage unit 42 for registering a setting code, and a door lock operation switch 4 provided in the vehicle.
5 and the like.

The control unit 20 is a well-known CP.
It is a one-chip microcomputer equipped with a U, a ROM, a RAM, and the like, and controls each unit according to execution of a processing program stored in the ROM, for example, a setting code registration routine described later. The code storage unit 42 is composed of a RAM that is always backed up by a power supply, and stores setting codes read and written by the control unit 20. The first and second receivers 34 and 36 have light receiving units 34a and 36a for receiving infrared signals from the transmitter 31c of the door key 31 on the front surface. A push button switch 31b for operating the transmitter 31c is provided on the front surface of the grip portion 31a of the door key 31. As shown in FIG. 2, the first receiver 34 is mounted on the left side of the handle 52 of the door with the light receiving portion 34a exposed. A terminal of a coupler 55 is attached above the light receiving section 34a. When a second receiver 36 is connected to the terminal of the coupler 55, the second receiver 36 is connected to the control unit 20. A door cylinder lock 53 is attached to the lower left of the handle 52, and a key insertion opening 53a into which the door key 31 is inserted is provided in front of the door cylinder lock 53.
Is provided. Key insertion port 5 of door cylinder lock 53
By inserting the door key 31 into 3a and turning it,
In addition to driving the door lock actuator 25, the door lock device 28 can be locked and unlocked. The door lock device 23 is electromagnetically driven by a door lock actuator 25 to lock and unlock the door, and a mechanical lock to lock and unlock the door by turning a door key 31 connected to the door cylinder lock 53. Having both. The door lock operation switch 45 is a seesaw switch provided in the vehicle, and sends a command signal to the control unit 20 in accordance with a driver's locking / unlocking operation to lock / unlock the electromagnetic lock portion of the door lock device 28. It is.

The operation of the vehicle lock control device 10 having the above configuration will be described. Push button switch 31 of door key 31
When b is pressed, an infrared signal of a unique code is transmitted from the transmitter 31c. When the infrared signal is received by the light receiving section 34a of the first receiver 34, the unique code is demodulated by the demodulator in the first receiver 34 and input to the control unit 20. The control unit 20 compares the input unique code with the setting code stored in the code storage unit 42, and when the two codes match each other, moves the door lock device 28 through the door lock actuator 25 to the unlocked or locked position. Drives to unlock and lock the door. Also,
The control unit 20 is a door lock operation switch 4
Similarly, when it is detected that the lock 5 has been operated to the unlocking or locking position, the door lock device 28 is driven to the unlocking or locking position via the door lock actuator 25 to unlock and lock the door. Further, the door key 31 is locked without using the door lock actuator 25.
3 and also when it is turned, the door lock device 28 is driven to the unlocking position or the locking position to unlock the door,
Lock.

Next, a procedure for re-registering the setting code registered in the code storage unit will be described. FIG. 3 is a flowchart showing a setting code registration routine. This routine is executed repeatedly. The control unit 20 first determines whether or not the second receiver 36 is connected to the coupler 55 (step S110). If not, the control unit 20 ends this routine once. When connected, the second receiver 36 is the door key 31
It is determined whether or not a unique code has been received from an infrared signal (step S120). If the second receiver 36 has not received the unique code, this routine is temporarily terminated. Here, the flag is set when the second receiver 36 receives the unique code, and the control unit 20 reads the state of the set flag to determine the reception. When the state of the flag is read, the control unit 20 resets the flag. If the second receiver 36 is receiving the unique code, the process proceeds to the next setting code registration process (step S13).
0). That is, when the control unit 20 reads the unique code from the second receiver, the control unit 20 registers the unique code as a setting code in the code storage unit 42, and ends this routine once.

According to the vehicular lock control device 10 to which the transmission / reception device of this embodiment is applied, the re-registration of the setting code stored in the code storage unit 42 can be performed only by operating the transmitter 31c of the door key 31. Therefore, a complicated mechanical operation is not required on the receiver side, and the operability is excellent.

The position where the coupler is mounted is not limited to the door lever, and may be anywhere in the vehicle or in the engine room with the hood open. Further, instead of making the second receiver detachable using a coupler, the second receiver may be always connected to the control unit. In that case, the second receiver may be provided at a location that cannot be easily found by a third party. The number of setting codes registered in the code storage unit 42 is not limited to one and may be plural.

[Second Embodiment] Next, a vehicle lock control device 60 to which the transmission / reception device of the second embodiment is applied will be described. FIG. 4 is a block diagram showing the electrical configuration of the vehicle lock control device 60. The vehicle lock control device 60 of the present embodiment is a vehicle lock control device 1 of the first embodiment.
There is a difference in the configuration shown below as compared with 0. In the first embodiment, the second receiver 36 is connected to the control unit 20 via the coupler 55, but in the second embodiment, the control unit 70 is directly connected without using the coupler.
Connected to In that case, the second receiver may be provided with a part that cannot be easily found by a third party. The control unit 70 includes a timer 70b for measuring a settable registration time and a flag 70a indicating that registration is possible. The timer 70b and the flag 70a are used to store the setting code in the code storage unit 42. Is stored in the ROM. In the figure, the same components as those in the first embodiment are denoted by the same reference numerals.

Next, the registration operation of the setting code registration routine will be described. FIG. 5 is a flowchart showing a setting code registration routine. This routine is executed repeatedly. First, the second receiver 36 determines whether a unique code has been received based on an infrared signal emitted from the door key 31 (step S210). When the unique code has not been received, the routine is temporarily terminated without any further operation. Upon receiving the unique code, the control unit 70 sets the permission flag F assigned to the flag 70a (step S220), resets the timer 70b once, and starts the timer 70b (step S23).
0). Thus, the setting code can be registered in the code storage unit 42. It is determined whether or not the first receiver 34 has received the unique code while the timer 70b is counting (step S250).
When 0b reaches the preset time (10 seconds in this embodiment) and the time is up (step S240), the permission flag F is reset (step S270), and this routine is ended once. When the first receiver 34 receives the unique code while the timer 70b is counting, and the permission flag F is set, the unique code read in the same manner as in the first embodiment is stored in the code storage unit 42 as a set code. After the registration (step S260), this routine is temporarily ended.

According to the vehicle lock control device 60 to which the transmission / reception device of this embodiment is applied, the registration of the setting code stored in the code storage unit 42 is re-registered by the transmitter of the door key 31 as in the first embodiment. Because it can be done only by the operation of 31c,
The effect that the receiver side is excellent in operability without requiring complicated mechanical operation can be obtained. In addition, by transmitting an infrared signal to each of the first receiver 34 and the second receiver 36 and transmitting the unique code, the code storage unit 42 is provided only when one of the receivers receives the unique code.
It is safer than when the setting code is updated.

Various changes can be made without departing from the scope of the present invention. For example, the unique code may be registered from the second receiver 36. As the unique code received by the second receiver, only a code having a code number in a limited range may be accepted. The second receiver 36 may be configured to reset the permission flag F when receiving the unique code twice in succession.
When the permission flag F can be reset by pressing twice,
Since the permission flag F does not need to be reset when the timer 70b times out, the timer 70b can be omitted.

[Third Embodiment] Next, a vehicle lock control device 90 to which the transmission / reception device of the third embodiment is applied will be described. FIG. 6 is a block diagram showing the electrical configuration of the vehicle lock control device 90. The vehicle lock control device 90 of the second embodiment is different from the vehicle lock control device 6 of the second embodiment.
There is a difference in the configuration shown below as compared with 0. That is, instead of omitting the second receiver 36, a new portable transmitter 91 is provided. The portable transmitter 91 is a push button switch 91b for transmitting an infrared signal similarly to the door key 31.
And transmits a command code for requesting registration of the setting code to the control unit 100. Unlike the door key 31, the portable transmitter 91 does not have a key function to lock and unlock the door both electromagnetically and mechanically. In the figure, the same components as those in the second embodiment are denoted by the same reference numerals.

A setting code registration routine using the portable transmitter 91 will be described. FIG. 7 is a flowchart showing a setting code registration routine. First, it is determined whether a command code has been received from the portable transmitter 91 (step S310). When the command code has not been received, the routine is temporarily terminated without any further operation. Upon receiving the command code, the control unit 100 sets the permission flag F assigned to the flag 100a (step S320), resets the timer 100b once, and starts the timer 100b (step S330). Thus, the setting code can be registered in the code storage unit 42. While the timer 100b is counting, the receiver 34 sets the door key 3
It is determined whether or not the unique code has been received from No. 1 (step S350). When the timer 100b has reached the preset time (60 seconds in this embodiment) before the unique code has been received from the door key 31, the time has expired (step S340). ) Resets the permission flag F (step S
370) This routine is temporarily ended. If the receiver 34 receives the unique code from the door key 31 while the timer 100b is counting and the permission flag F is set, the second
The unique code read in the same manner as in the embodiment is stored in the code storage unit 4.
2 is registered as a setting code (step S360), and this routine is temporarily ended.

According to the vehicle lock control device 90 to which the transmission / reception device of this embodiment is applied, re-registration of the setting code stored in the code storage unit 42 is performed by the portable transmitter 91 and the transmitter 31 c of the door key 31. Since it can be done only by operation,
As in the first and second embodiments, there can be obtained an effect that a complicated mechanical operation is not required on the receiver side and the operability is excellent. Further, since registration cannot be performed unless the command code and the unique code are transmitted from the separate transmitters 91 and 31c, respectively, the setting code in the code storage unit is updated simply by receiving the unique code by the receiver. It is safer than that. For example, if a car manufacturer or a car dealer possesses the portable transmitter 91 so that the setting code can be rewritten, the user who owns the door key 31 does not have to worry about rewriting the setting code by mistake. . Further, since only one receiver is required, the configuration of the receiver can be simplified, and the limited space of the vehicle can be effectively utilized. Note that the portable transmitter 91 may have a key function similar to the door key 31.

The registration of the setting code shown in the first, second, and third embodiments may be update registration by overwriting the previous setting code, or additional registration added next to the previous setting code. Also, not limited to infrared rays, radio signals of ultrasonic waves or white light may be used.

[0026]

According to the transmitting / receiving apparatus of the present invention, the setting code can be changed on the receiver side only by operating the transmitter, so that the complicated mechanical operation on the receiver side is released from the user. Operability can be improved. Further, the security of the setting code can be ensured while avoiding an erroneous operation. For example, by providing the second receiving means in a vehicle or an engine room at a position apart from a door lever where the first receiving means is usually provided, it is possible to prevent a user from changing a setting code by mistake. it can. Further, by providing the second receiving means at a location that cannot be easily found by a third party, the security of the setting code can be secured.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating an electrical configuration of a vehicle lock control device 10 to which a transmission / reception device of a first embodiment is applied.

FIG. 2 is a front view showing a handle portion 52 of the door.

FIG. 3 is a flowchart illustrating a setting code registration routine according to the first embodiment.

FIG. 4 is a block diagram showing an electrical configuration of a vehicle lock control device 60 to which the transmission / reception device of the second embodiment is applied.

FIG. 5 is a flowchart illustrating a setting code registration routine according to a second embodiment.

FIG. 6 is a block diagram showing an electrical configuration of a vehicle lock control device 90 to which the transmission / reception device of the third embodiment is applied.

FIG. 7 is a flowchart illustrating a setting code registration routine according to a third embodiment.

[Explanation of symbols]

 31 ... Door key 31b ... Push button switch 31c ... Transmitter 34a ... Light receiving part 36a ... Light receiving part 52 ... Handle part 55 ... Coupler 53 ... Door cylinder lock

Claims (3)

(57) [Claims] 1. A transmitter for transmitting a unique code, and the unique code transmitted by the transmitter is separately provided.
And a receiver having first and second receiving means for receiving a control code, wherein the transmitting and receiving apparatus is used for controlling a single controlled object , the receiver comprising: a storage means for registering a setting code; Determining means for determining a match between the setting code registered in the storage means and the unique code received by the first receiving means; and the determining means independently provided for the first receiving means. Second
And a setting code registering means for registering the unique code received by the receiving means as a setting code in the storage means. 2. A transmitting and receiving apparatus comprising: a transmitter for transmitting a unique code; and a receiver having first and second receiving means for receiving the unique code transmitted by the transmitter. A storage unit that registers a setting code; a determination unit that determines whether the setting code registered in the storage unit matches the unique code received by the first receiving unit; Registration permitting means for permitting registration of the setting code of the storage means in accordance with the unique code received by the receiving means of the second means;
Or a setting code registering means for registering the unique code received by the second receiving means as a setting code in the storage means. 3. A transmitter for transmitting a unique code, and a receiver for receiving the unique code transmitted by the transmitter, the receiver comprising: storage means for registering a setting code; A transmission / reception device comprising: a determination unit configured to determine a match between a setting code registered in a storage unit and the received unique code, wherein the transmitter permits registration of the configuration code in the storage unit. A first transmitting means for transmitting a command code to be transmitted, and a second transmitting means for transmitting the unique code following the command code transmitted by the first transmitting means. A setting code register for registering the unique code transmitted by the second transmitting means as a setting code in the storage means based on the command code transmitted by the first transmitting means. Transceiver having means.