JPH0771337B2 - Communication device capable of writing identification data - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION In general, a so-called remote control device, which is widely used at present, stores predetermined identification data in a transmitter and registers the identification data in a receiver side installed in a controlled device. By doing so, only the control signal from the transmitter having the identification data is judged and the controlled device is controlled. For example, the controlled device may be a keyless entry system for controlling locking / unlocking of an automobile door. Conventionally, the registration of identification data on the receiver side has been installed in advance corresponding to a transmitter that uses memory parts having the same identification data as the transmitter side, which tends to complicate registration and management work. is there. Therefore, in the present invention, registration of the identification data is facilitated by writing the identification data to be used by using a writable / readable memory. Further, since the writing state in the memory is notified by the notification means such as an LED or a horn, it is possible to prevent the operator from misrecognizing the operation. Further, the setting of the writable / readable state of the memory is performed by using the switching means that cooperates with the timing means such as the switching means and the timer, thereby improving the operability. Furthermore, by providing a function of erasing the identification data registered in the memory, it is possible to prevent the theft and malfunction of other operators and to improve security. In addition, the identification data having high demand is preferentially registered in the memory to improve operability.

INDUSTRIAL APPLICABILITY The present invention relates to a so-called remote control device for controlling a device from a remote position, in which a receiver writes and registers identification data individually assigned to a transmitter that generates a control signal, and thus the identification The present invention relates to a communication device in which identification data can be written so that a device including a receiver can be controlled only by a transmitter having data.

2. Description of the Related Art Conventionally, remote control devices have been widely used in various fields. For example, in automobiles, door locking /
A keyless entry system for unlocking control tends to be configured by a remote control device. The remote control device is composed of a transmitter and a receiver, and the receiver receives a control signal from the transmitter to switch between a locked state and an unlocked state of the door. The transmitter is individually provided with identification data, and the receiver is registered with the identification data. In this way, the receiver can receive and respond only to the control signal from the transmitter having the identification data registered in the receiver and control the locking / unlocking of the door. The security is being improved.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention Conventionally, identification data such as ROM (Read
It is stored in advance in the Only Memory) and set. on the other hand,
The fixedly set identification data is provided in advance.
It is stored in memory parts such as ROM and installed in the receiver.

Therefore, when the transmitter is lost at the product stage, in handling the transmitter having new identification data, the memory component storing the lost identification data is removed from the receiver, A memory component that stores the identification data of the transmitter to be newly handled must be attached to the receiver. Therefore, the management of the memory parts is complicated, and the memory parts attached to the receiver must be handled for each identification data, and the maintenance is very poor when the transmitter is lost.

Therefore, an object of the present invention is to simplify writing and registration of identification data in a communication device with a simple configuration,
An object of the present invention is to provide a communication device having excellent operability and capable of writing identification data.

Means for Solving the Problems The present invention provides a transmitting means for transmitting predetermined identification data, a storage means capable of writing / reading the identification data, and setting or reading the storage means in a writable state. Write state setting means for selecting whether to set to a possible state, and identification data sent from the transmitting means when the storage means is set to the write state by the write state setting means, the storage means When the storage means is set to the read state by the write state setting means, the identification data sent from the transmitting means is compared with the identification data stored in the storage means, and both are in agreement. A communication device capable of writing identification data, characterized in that the communication device includes a receiving means for controlling the controlled device.

Further, the present invention is characterized in that a notification means is provided for notifying that the storage means is in a writable state over a period of the state.

Furthermore, the present invention is characterized in that an erase state setting means for inputting an erase instruction of the stored content of the storage means is provided.

Further, the present invention is provided with a clocking means for timing the time after the write state setting means is operated, and when it is detected that the write state setting means is operated a plurality of times within a predetermined time, It is characterized in that the contents stored in the storage means are erased.

Furthermore, the storage means of the present invention is divided into a plurality of storage areas, and when the input identification data exceeds the number of divisions, the identification data input to the storage means earliest is erased. It is characterized by

According to the communication device capable of writing the identification data of the present invention, the storage means capable of writing / reading the identification data is provided in advance. The storage means is set to the writable state by the writing state setting means, and the identification data received by the receiving means is written and registered. The written identification data is
When the storage means is set to the readable state by the writing state setting means, the identification data sent from the transmitting means is read and compared every time it is received by the receiving means, and subsequent control is performed. Be seen. Therefore, it is not necessary to provide the receiving means with the unique storage means for each transmitting means, and the unique identification data can be written and registered with a simple configuration.

Further, in the present invention, the fact that the storage means is in the writable state may be notified by the notifying means over the period in which the writable state is set. Therefore, the operator can easily determine whether or not the identification data can be registered, or whether or not the writing registration has been completed.

Furthermore, in the present invention, an erasing state setting means may be provided so that an instruction for erasing the contents stored in the storage means can be input. Therefore, for example, when communication is unnecessary, the stored contents can be easily erased, and security is improved.

Further, in the present invention, a clocking means may be provided.
The time measuring means measures the time after the operation of the writing state setting means. When it is detected that the writing state setting means is operated a plurality of times within a predetermined time in the time counting by the time counting means, the stored content of the storage means is erased. Therefore, by using the clocking means, the configuration of the writing state setting means can be simplified, leading to a reduction in the number of parts. Further, if the writing state setting means is not operated a plurality of times within the above time, the state of the storage means is automatically switched, so that it is possible to prevent the operator from forgetting to switch.

Further, in the present invention, the storage means is divided into a plurality of storage areas, and when the input identification data exceeds the number of divisions, the identification data input to the storage means earliest is erased. You may. Therefore, when multiple types of identification data are assigned to individual transmission means, the identification data registered and registered earliest is the oldest data and is considered to have low demand. There is no problem even if it is done. That is, the identification data with high demand can be easily registered in place of the old identification data.

First Embodiment FIG. 1 is a block diagram showing a simplified configuration of a communication device 1 according to a first embodiment of the present invention. The communication device 1 is a so-called remote control device, and is configured by, for example, a keyless entry system for locking / unlocking a door of an automobile, and includes a transmitter 2 and a receiver 3.

The transmitter 2 is composed of a transmission circuit 4 and includes a ROM 5. The ROM 5 stores in advance the identification data R individually given to the transmitters 2 at the manufacturing stage. Thus, the identification data R is fixedly set for each transmitter. The identification data R and a control signal indicating locking / unlocking are transmitted by the transmission circuit 4 by, for example, FSK modulation (Frequency Shift).
Key modulation), for example antenna 4 at a frequency of 30MHz
Dispatched from a.

As described above, the configuration of the receiver 3 includes the configuration of the device 100 that controls locking / unlocking of the door of the automobile. The device 100
Is a door control circuit 6 for controlling door locking, a switch group 7 for setting which door is to be locked manually, and a signal from the switch group 7 is converted into a signal of a predetermined level. And a processing circuit 9 for outputting a control signal to the door control circuit 6 based on the input signal. The processing circuit 9 is composed of, for example, a microcomputer. Examples of the switch group 7 include a door cartridge switch 7a for opening and closing a door, a hood switch 7b for opening and closing a hood, and a trunk switch for opening and closing a trunk.
7c and the like. The signal from the switch group 7 is
The signal is converted into a predetermined level signal by the level conversion circuit 8 and is given to the processing circuit 9, and a control signal is output to the door control circuit 6 based on the signal to control locking / unlocking of the selected door. To do.

The receiver 3 has a receiving circuit 11 for tuning / amplifying a signal transmitted from the transmitter 2, and an electrically writable / readable EEPROM.
OM (Electrically Erasable Programmable ROM) 12
Further, it comprises a setting switch 13 for setting the EEPROM 12 in a writable state or a readable state. The receiving circuit 11 is connected to the processing circuit 9 via the waveform shaping circuit 10, and the EEPROM 12 and the setting switch 13 are also connected to the processing circuit 9. For example, the setting switch
When 13 is set to the conductive state, the EEPROM 12 is set to the writable state, and the identification data R input from the antenna 17 via the receiving circuit 11 can be registered. on the other hand,
When the setting switch 13 is set to the cutoff state, the EE
The PROM 12 is set to a readable state, and the identification data R is read from the EEPROM 12 each time a signal from the transmitter 2 is received, compared with the identification data from the transmitter 2, and the result of the comparison is
When the respective identification data are the same, so-called normal remote control control for controlling locking / unlocking of the door based on the signal is performed.

Further, a notification means 14 is connected to the processing circuit 9. Examples of the notification means 14 include a light emitting diode (hereinafter referred to as “LED”) 15 and a horn 16. The horn may be a voice table device such as a buzzer. The notification means 14 notifies whether or not the EEPROM 12 is in a writable state, and whether or not the writing of the identification data R is completed. For example, the LED 15 lights up or blinks while being set to the writable state, and when the writing of the identification data R into the EEPROM 12 is completed, the horn 16 sounds.

FIG. 2 is a flow chart for explaining the control operation of the first embodiment. At step s1, it is determined whether the setting switch 13 is in the conducting state. That is, it is determined whether or not the identification data R is set to the writable state in the EEPROM 12. If the setting switch 13 is in the shut-off state, the process proceeds to step s6 to perform normal remote control control. That is, the identification data R sent from the transmitter 2 is compared with the identification data stored in the EEPROM 12,
If they match, the state of the door is identified. As a result, if the door is in the locked state, unlocking is performed, and if the door is in the unlocked state, locking is performed. In this way, the door locking / unlocking control according to the signal from the transmitter 2 is performed.

In step s1, when the setting switch 13 is set to the conductive state, the LED 15 which is the notifying means 14 is turned on, the identification data R to be registered in step s3 is sent from the transmitter 2, and the receiving circuit 11 sends it. It is determined whether it has been received. If the determination is negative, the process proceeds to step.
The process proceeds to s4, and it is determined whether the setting switch 13 has been switched to the cutoff state, that is, whether the writable state of the EEPROM 12 has been released. If the setting switch 13 has not been switched to the cutoff state, the process proceeds to step s3 and the determination is repeated. In this way, when the setting switch 13 is switched to the cutoff state, the process proceeds from step s4 to step s5, and since the writable state is released, the notification means 14
D15 goes out and the normal remote control control described above is resumed.

On the other hand, in step s3, if the identification data R to be registered is received while the EEPROM 12 is set to the writable state, the process proceeds to step s7 and the processing circuit 9 is set to the write mode. In step s8, the identification data R is written to the EEPROM 12, and after the writing is completed, the horn 16 as the notification means 14 is blown once, and then in step s4 it is judged that the writable state has ended, and then the normal remote Control Return to control.

Therefore, according to the above-described embodiment, the EEPROM connected to the processing circuit 9 by switching the setting switch 13
Twelve writable states are set, and in the writable state, by receiving the identification data R to be registered from the transmitter, the writing and registration can be easily performed. Therefore, for example, even when the transmitter is lost and the identification data of a new transmitter should be registered, it can be easily registered in the EEPROM, which is a memory component on the receiver side. That is,
Unlike the conventional case, a complicated work process such as mounting a new memory component on the receiver side for registering new identification data is not required, and an easy work process is sufficient and maintenance is also improved. In addition, the registration of identification data is not performed by transmitting the identification data from the receiver side to the transmitter side, but by registering the identification data registered in advance in the transmitter to the receiver. It is not necessary to provide a receiver and a transmitter in each machine, and it can be realized with a simple configuration. Furthermore, since the notifying means 14 is provided, the writable state and the completion of writing can be easily confirmed by the operator, and the operability is excellent. Further, since the setting switch 2 is constructed by the stable position, the operator can operate while confirming the state sufficiently.

FIG. 3 is a block diagram showing a simplified configuration of the communication device 21 according to the second embodiment of the present invention. The same or corresponding parts as those in FIG. 1 are designated by the same reference numerals. In the communication device 21, the configuration of the receiver is different from that described above. That is, in the structure of the device 101 for controlling the locking of the door, the processing circuit 9 is provided with the timer 24, and the setting switch 25 is composed of the first switch 25a and the second switch 25b. The setting switch 25 does not have a bistable position like the setting switch 13 described above, but each pulse is input by one pressing operation like a so-called push switch.

In the present embodiment, once the first switch 25a is operated, the EEPROM 12 is set to the writable state from the time of the operation, and the timer 24 starts counting.
When the count value t of the timer 24 reaches a predetermined value T (for example, 5 seconds), the EEPROM 12 is automatically released from the writable state. The processing circuit 9 also has a function of erasing the contents stored in the EEPROM 12. When the second switch 25b is operated before the count value t of the timer 24 exceeds the predetermined value T after the operation of the first switch 25a, the contents stored in the EEPROM 12 are erased. The time for determining that the setting switch 25a has been operated is selected to be, for example, about 2 seconds.

FIG. 4 is a flow chart for explaining the control operation of the second embodiment of the present invention. At step m1, it is judged whether or not the first switch 25a has once been operated to register the identification data R. If the determination is negative, the process proceeds to step m7 to perform the normal remote control control as described above, and if the determination is affirmative, the process proceeds to step m2 to set the EEPROM 12 to the writable state. , LED15 which is a notification means is lit or blinked, and timer 2
Start counting by 4.

Thereafter, in step m3, it is determined whether or not the second switch 25b has been operated. If the determination is negative,
At step m4, it is judged whether or not the identification data R to be registered is transmitted from the transmitter and received by the receiving circuit 11. If the determination in step m4 is negative, the process proceeds to step m5 and it is determined whether or not the count value t started from the step m2 exceeds a predetermined value T. If the determination in step m5 is negative, the process returns to step m3 again, and the above-mentioned step m3
~ The processing of step m5 is repeated. After that, when the count value t exceeds a predetermined value T, the process proceeds to step.
Proceed to m6 and judge that the new identification data R has not been written and registered within the predetermined time.
The writable state of the OM12 is released, the LED 15 as the notification means is turned off, the counter value t of the timer 24 is cleared, and the normal remote control control similar to the above is performed in step m7.

On the other hand, in step m3, the count value t of the timer 24
Before the second switch reaches a predetermined value T.
When it is determined that 25b has been operated, the EEPROM 12 is set to the erase mode at step m8, all the stored contents are erased at step m9, and the horn 16 which is the notification means is blown once at step m10. Go to step m6.

If the identification data R to be registered is received before the count value t of the timer 24 reaches the predetermined value T in step m4, the EEPRO is received in step m11.
M12 is set to the write mode, the received identification data R is written in step m12, and the horn 16 which is the notification means is blown twice in step m13 to make the above-mentioned step m6.
Go to. The difference in the number of times the horn is blown between the step m10 and the step m13 is to clearly inform the operator of the difference between the erasing of the EEPROM 12 and the completion of writing to the EEPROM 12. Therefore, the number of sounds is not limited in this embodiment.

Thus, according to the above-described embodiment, as in the first embodiment,
The transmitter's identification data can be registered on the receiver side by an easy operation, and automatically if the identification data to be registered is not registered within the time measured by the timer that is the time measuring means in advance. Since the writable state of the EEPROM is released, it is possible to prevent the operator from forgetting to switch so that the EEPROM remains in the writable state due to carelessness. Further, the writing mode to the EEPROM and the erasing mode can be selectively executed by an easy operation of the setting switch, and the operability is very high. Further, since the EEPROM erase mode is provided in the second embodiment, any identification data can be obtained by erasing the stored contents in the EEPROM when the operator leaves the vehicle for a long time. Even the transmitter cannot control the door control circuit, which greatly improves the security.

FIG. 5 is a block diagram showing a simplified configuration of the communication device 31 which is the third embodiment of the present invention. The same or corresponding parts as those in FIG. 3 are designated by the same reference numerals. In the communication device 31 according to the third embodiment, in the configuration of the device 102 for controlling the locking of the door, the setting switch 35 connected to the processing circuit 9 is configured by one push switch. That is, in the second embodiment, the first switch 25a is operated when the EEPROM 12 is set to the writable state, and the second switch 25b is controlled when the EEPROM 12 is suppressed to the erase mode within a predetermined time. However, the first switch 25a and the second switch 25b may be combined by a single setting switch 35. That is, when setting the EEPROM 12 to the writable state, the setting switch 35 is once operated, the count value t of the timer 24 is started at that time, and the setting switch 35 is operated again within a predetermined time. Therefore, the erase mode may be set to erase the stored contents of the EEPROM 12. If the second operation of the setting switch 35 is not performed before the count value t of the timer 24 exceeds a predetermined value T, the writable state of the EEPROM 12 is automatically released.

FIG. 6 is a flow chart for explaining the control operation of the third embodiment. The same or corresponding portions as those of the flow chart shown in FIG. 4 are designated by the same reference numerals. As described above, since the two setting switches 25a and 25b are replaced by the one setting switch 35, the step m1 shown in FIG. 4 is replaced by the step m1a shown in FIG. It is determined whether or not it has been operated. Further, the judgment of the operation of the second switch 25b in the step m3 in FIG. 4 is replaced with the judgment of the second operation of the setting switch 35 in the step m3a in FIG. The other processing operations are the same as the processing shown in FIG. 4, and are omitted here.

According to the third embodiment described above, the two operation switches configured in the second embodiment are also used by one operation switch, so that the occupying amount of the setting switch in the apparatus is reduced and the number of parts is reduced. Saves money.

The switches in the second and third embodiments may be momentary switches.

FIG. 7 is a block diagram showing a simplified configuration of the communication device 41 according to the fourth embodiment of the present invention. The same or corresponding parts as in FIG. 5 are designated by the same reference numerals. In the fourth embodiment, a plurality of transmitters 42 (n in this embodiment) are provided, and the ROM 61 of each of the transmission circuits 51 to 5n.
It is assumed that independent identification data R1 to Rn, which are different from each other, are individually registered in 6n. When a plurality of transmitters 42 are provided in this manner, the identification data R1 to be assigned to each of the transmitters so that remote control can be performed by any of the transmitters.
All Rn must be registered in EEPROM12.

The inside of the EEPROM 12 is divided into a plurality of storage areas. In the present embodiment, it is assumed that the region is divided into k regions as an example. Therefore, k pieces of identification data R, which are the same as the number of areas, can be written and registered in the EPROM 12. In this embodiment, when registering the identification data R exceeding the number k of regions, the registration order is configured so that the most recently registered identification data has priority.

FIG. 8 is a diagram for explaining the registration order of the storage areas in the EEPROM 12. There are k storage areas, and M1 to Mk as reference marks
Is attached. FIG. 8 (1) shows a state in which the first identification data R1 is registered in the storage area M1. When the setting switch 35 or the like is subsequently operated so that the identification data R2 is registered, the identification data R1 registered in the storage area M1 is shifted to the adjacent storage area M2, and then the cleared storage is performed. New identification data R2 to be registered in area M1
Is written and registered. Thereafter, the identification data R already registered for each new registration is sequentially shifted to the adjacent storage areas, and when k pieces of identification data are thus registered, the k storage areas are stored as shown in FIG. K pieces of identification data R1 to Rk are respectively registered in M1 to Mk. Furthermore, when new identification data R (k + 1) is registered, the earliest registered identification data R1 is cleared from the storage area Mk at the end. After that, it is sequentially shifted as described above, and the newest identification data R (k + 1) is written and registered in the storage area M1. In this way, the most recent identification data is given priority and EEPR
Configure to register in OM12.

FIG. 9 is a flow chart for explaining the control operation of the shift process. When the shift processing is started, the stored contents of the storage area Mk at one end is cleared at step a1. That is, the identification data that is input earliest and shifted to the one end is erased. Then step
In step a2, the memory contents of the memory adjacent M (k-1) adjacent to the cleared memory area Mk are shifted, and thereafter the shift processing is sequentially repeated. The storage content of the storage area M1 is shifted, and thus the storage area M1 in which the identification data to be newly registered is to be registered is secured, and this shift processing ends.

FIG. 10 is a flow chart for explaining the control operation of the fourth embodiment. For step b1, set switch 35-1.
It is determined whether the second operation has been performed. If the result of the judgment is negative, the procedural steps proceed to step b17, where the above-mentioned normal remote control control is carried out and step b1 is executed again. On the other hand, if the determination is affirmative, the process proceeds to step b2, sets the EEPROM 12 to the writable state, turns on or blinks the LED 15 as the notification means, starts counting the timer 24, and at step b3, It is determined whether or not the count value t has exceeded a predetermined value T.

If the result of the judgment is negative, the procedural steps proceed to step b4, where it is judged whether or not the second operation of the setting switch 35 has been performed. If the determination in step b4 is negative, the process further proceeds to step b5 to determine whether or not the identification data R to be registered has been received. If the determination is negative, the process returns to step b3 again, the determination of the count value t and the predetermined value T is performed, and the processes of steps b3 to b5 are repeated.

When the identification data R to be registered is received in the step b5, the value of the reception counter C which is previously provided in the processing circuit 9 and is "0" is incremented by +1 to be updated in the step b6. At, it is determined whether or not the value of the reception counter C is "1". If the reception counter C is "1", the process proceeds to step b8, the processing circuit 9 is set to the write mode, and the received identification data R
Is written in the EEPROM 12 in step b9, and the process returns to step b3 again.

In general, the identification data R sent from the transmitter is sent at the same level for a plurality of times, and the receiver can surely judge and register the identification data R. Therefore, if the value of the reception counter C is not "1" at the step b7 while the processing of the steps b3 to b7 is being repeated, the processing proceeds to the step b10, at which time the reception is performed. It is determined whether or not the identified identification data R is the same as the previously received identification data R, and if the above determination is affirmative, a new "1" is set in the reception counter C in step b11, and the process proceeds to step. After returning to b3, the above-described steps b3 to b7, b10, b11 are repeated.

If it is determined that the identification data received in the step b10 is different from the identification data registered in the EEPROM 12 received last time, the process proceeds to the step b12 to perform the shift process shown in FIG. The memory area M1 at the other end is secured, the processing circuit 9 is set to the write mode in step b13, and new identification data R is written in the memory area M1 in step b14. Then step b1
At 5 the horn 16 which is the notification means 14 is sounded once, and at step b1, the writable state of the EEPROM 12 is released, and the notification means 14
Then, the LED 15 is turned off and the count value t of the timer 24 is cleared. As a result, the processing circuit 9 performs the normal remote control control at step b17, and the process returns to step b1 again.

On the other hand, in step b3, when the count value t of the timer 24 started from the first operation of the setting switch 35 exceeds a predetermined value T, the process proceeds to step b16 and the writing to the EEPROM 12 is automatically performed. Release the enabled state and LED1
5 is turned off, the count value t of the timer 24 is cleared, and normal remote control control is performed.

Further, if the second operation of the setting switch 35 is performed before the count value t of the timer 24 reaches the predetermined value T in step b4, the processing circuit 9 is set to the erase mode in step b18. At step b19, all the contents stored in the EEPROM 12 are erased, and at step b20, the notifying means 14 indicates that all the contents stored are erased.
Is issued by sounding the horn 16 twice, and the process proceeds to step b16.

Therefore, according to the above-described fourth embodiment, it is considered that the earliest registered identification data has low demand, and priority is given to the most recently registered identification data rather than the identification data. Since it is configured to be registered in the EEPROM, operability is significantly improved.

Therefore, according to the above-described embodiment, the registration and management of the identification data of the transmitter on the receiver side in the manufacturing process can be significantly simplified. Further, even when the transmitter is lost and the transmitter having the new identification data is replenished, the new identification data can be easily written and registered in the receiver side. Is easy. Further, since the operator can be informed of the writable state in the EEPROM by the notifying means, the operator does not erroneously recognize the operation and the operability is high. Moreover, since the writable / readable state of the EEPROM can be switched by the setting switch having the two stable positions, the operation is simple.
In addition, since the contents stored in the EEPROM can be erased in the erase mode, when the operator has left the vehicle for a long time, other transmitters can open and close the door, for example. Without being controlled, security is very high.

Further, by making the setting switch function in cooperation with the timer, it is possible to reduce the number of parts and prevent the operator from forgetting to switch the switch. If there are multiple pieces of identification data to be registered, it can be judged that the earliest registered identification data has low demand, so priority is given to registration of new identification data with higher demand. It is possible and easy to operate.

Further, although the present embodiment has been described with reference to a device for controlling the locked / unlocked state of the door as a control device for performing remote control control, this is not limited to the present invention.

According to the invention of claim 1, the identification data can be easily written and registered by setting the storage means provided in the communication device to the writable state by the writing state means. Therefore, management and registration of the identification data can be realized by an easy work process. Further, even when the transmitting means for transmitting the identification data is lost and when the transmitting means having the new identification data is replenished, the identification data can be easily written and registered, and maintenance is easy. Greatly improved. Further, the registration of the identification data is not performed by transmitting the identification data from the receiving means side to the transmitting means side,
Since the identification data registered in advance in the transmitting means is used, it is not necessary to provide the transmitting means and the receiving means with the receiving means and the transmitting means, respectively, and it can be realized with a simple configuration.

According to the second aspect of the present invention, at least the fact that the storage means is in the writable state is notified, so that it is possible to prevent the operator from erroneously recognizing the operation, and the operability is excellent. There is.

Further, according to the invention of claim 3, since the deletion instruction can be given to the storage means by the deletion state setting means, when the control by the communication device is unnecessary,
All the stored contents in the storage means can be easily erased, and the security is very high.

According to the fourth aspect of the invention, the writing state setting means switches the writable / readable state of the storage means in cooperation with the time counting means. Therefore, the structure of the writing state setting means is simplified. This leads to a reduction in the number of parts and prevents the operator from forgetting to switch the switching state.

Further, according to the invention of claim 5, when the identification data that exceeds a plurality of storage areas provided in the storage means in advance is registered, the identification data registered earliest is considered to have low demand. Since the identification data to be registered most recently can be preferentially registered, the operability is excellent.

[Brief description of drawings]

FIG. 1 is a block diagram showing a simplified configuration of the communication device 1 according to the first embodiment of the present invention, FIG. 2 is a flow chart for explaining the control operation of the first embodiment, and FIG. A block diagram showing a simplified configuration of a communication device 21 which is a second embodiment of the invention, FIG. 4 is a flow chart for explaining the control operation of the second embodiment, and FIG. 5 is a third embodiment of the present invention. A block diagram showing a simplified configuration of the communication device 31 as an example, FIG. 6 is a flow chart for explaining the control operation of the third embodiment, and FIG. 7 is a communication device as the fourth embodiment of the present invention. 41
A block diagram showing a simplified configuration of the
FIG. 9 is a flowchart for explaining the registration order of the storage areas, and FIG. 9 is a flow chart for explaining the control operation of the shift processing.
FIG. 10 is a flow chart for explaining the control operation of the fourth embodiment. 1,21,31,41 …… Communication device, 2,42 …… Transmitter, 3,23,33…
… Receiver, 9 …… Processing circuit, 11 …… Reception circuit, 12 …… EE
PROM, 13, 25, 35 ... Setting switch, 14 ... Notification means, 15
…… Light emitting diode (LED), 16 …… Horn, 24 …… Timer, 25a …… First switch, 25b …… Second switch, R
…… Identification data, t …… Count value

Claims (5)

[Claims] 1. A transmission means for transmitting predetermined identification data, a storage means capable of writing / reading the identification data, and whether the storage means is set to a writable state or a readable state. And a writing state setting means for selecting the writing state setting means, and when the writing state setting means sets the writing means to the writing state, the identification data sent from the transmitting means is written in the storing means, and the writing data is written. When the storage means is set to the reading state by the state setting means, the identification data sent from the transmission means is compared with the identification data stored in the storage means, and when the both match, the controlled device is controlled. A communication device capable of writing identification data, characterized in that the communication device includes a receiving means for controlling. 2. The communication capable of writing identification data according to claim 1, further comprising notification means for notifying that the storage means is in a writable state over a period of the state. apparatus. 3. A communication device capable of writing identification data according to claim 1, further comprising erase state setting means for inputting an erase instruction of the stored content of said storage means. 4. A timekeeping means for timing the time after the operation of the write state setting means is provided, and when it is detected that the write state setting means is operated a plurality of times within a predetermined time, The communication device capable of writing identification data according to claim 1, wherein the storage contents of the storage means are erased. 5. The storage means is divided into a plurality of storage areas, and when the input identification data exceeds the number of divisions,
2. The communication device capable of writing identification data according to claim 1, wherein the identification data input to the storage means earliest is erased.