JPH07101315A - Remote control device - Google Patents

Abstract

PURPOSE:To provide a remote control device prevented from being improperly operated by learning remote control. CONSTITUTION:In an MCU12 of a transmitter T, when a push down signal is input from an operating circuit 11, the then value of an aged transmission side variable ID code S1 and a transmission side fixed ID code S2 are read synthesized and output as a discriminating code S3 to a light emitting circuit 18 through a decoder circuit 13 and a modulation circuit 17. The discriminating code S3 is fed from the light emitting circuit 18 by an infrared ray. In an MCU25 of a receiver R, when a reception code S4 is input, an aged receiving side variable ID code S5 and a receiving side fixed ID code S6 are read, synthesized into a discriminating code S7 and compared with the reception code S4. In the MCU25, when the reception code S4 agrees with the discriminating code S7, a door lock control signal S8 is output, and also a value of the reception side variable ID code S5 is made to agree with a value of the reception code S4.

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.

[0002]

2. Description of the Related Art Generally, there is a door lock of an automobile that is locked or unlocked by driving a motor provided in the door. The operation of locking or unlocking the door is performed by operating a switch provided inside the door when the driver is seated in the driver's seat. When the driver locks or unlocks the door from outside the vehicle,
It is performed by inserting a key into a keyhole provided in the door and rotating the key.

Recently, a remote control device has been used to remotely lock or unlock the vehicle from the vicinity of the outside of the automobile. The transmitter of this remote control device is provided on a grip of an ignition key or a key holder. Further, the receiver of the remote control device is provided inside the vehicle.

FIG. 6 shows a block diagram of a transmitter T and a receiver R of a conventional remote control device. As shown in FIG. 6, the transmitter T includes an operation circuit 41, an MCU (Micro Comp.
uterUnit) 42, identification code (hereinafter referred to as ID code)
It is composed of a memory 43, a decoder circuit 44, a modulation circuit 45, and a light emitting circuit 46.

The receiver R includes a light receiving circuit 47 and an amplifying circuit 4.
8, a demodulation circuit 49, a decoder circuit 50, an MCU 51 and an ID code memory 52. A door lock control circuit 53 that controls locking or unlocking of the door is connected to the MCU 51.

When the transmission switch 54 provided in the operation circuit 41 of the transmitter T is pressed, the MCU 42 inputs the ID code stored in the ID code memory 43 to the decoder circuit 44. The decoder circuit 44 parallel-serial converts the ID code and outputs the ID code to the modulation circuit 45. The modulation circuit 45 frequency-modulates the ID code at a predetermined frequency to obtain a modulated signal. This modulated signal is converted into infrared rays by the light emitting circuit 46 and sent out.

The infrared light emitted from the transmitter T is input to the light receiving circuit 47 of the receiver R provided in the automobile. The signal input to the light receiving circuit 47 is amplified to a predetermined level by the amplifier circuit 48. Then, the demodulation circuit 49 demodulates the received signal to separate the carrier signal and obtains the received signal. The received signal is serial-parallel converted by the decoder circuit 50 and input to the MCU 51 as a received code.

The MCU 51 compares the received code with the discrimination code previously stored in the ID code memory 52. If the received code does not match the discrimination code, MCU
51 deletes the reception code and waits until the next reception code is input.

If the received code matches the discrimination code,
The MCU 51 sends a signal to the door lock control circuit 53 to unlock the door when the door is locked, and sends a signal to the door lock control circuit 53 to lock the door when the door is not locked.

[0010]

However, in recent years, a learning remote controller has become used for AV equipments and home electric appliances, which enables operation of several equipments by one remote control device. This learning remote controller can easily store the ID code even in the vehicle remote control device, and there is a possibility that a person other than the owner of the vehicle can illegally unlock the door.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a remote control device which is not illegally operated by a learning remote controller.

[0012]

In order to solve the above-mentioned problems, the present invention according to claim 1 provides an operation means for transmitting an identification code and a change of the identification code with time in a remote control device. A variable identification code generating means for generating a variable identification code by
Receives the identification code from the transmitter as a reception code,
Comparing means for comparing the received code and the discrimination code,
The gist of the invention is that the receiving device is provided with a variable discrimination code generating means for generating a variable discrimination code by changing the discrimination code with time.

According to a second aspect of the present invention, in the remote control device according to the first aspect, the value of the discrimination code is set to the value of the reception code when the reception code and the discrimination code match or approximate to each other in the variable discrimination code generating means. It is the gist to provide the correction means to match with.

According to a third aspect of the present invention, in the remote control device according to the first aspect, the identification code comprises a fixed identification code part and a variable identification code part, and the value of the fixed identification code part is stored in the fixed identification code storage means. The gist is that the stored transmission device, the discrimination code is composed of a fixed discrimination code part and a variable discrimination code part, and the value of the fixed discrimination code part is composed of the reception device stored in the fixed discrimination code storage means. And

According to a fourth aspect of the invention, in the remote control device according to the first aspect, the variable discrimination code generating means has a variable discrimination code receiving means for receiving the variable discrimination code, and the value of the received variable discrimination code is variable. The gist of the invention is that it comprises a transmitting device provided with a correction means for matching the values of the identification codes, and a receiving device provided with a variable discrimination code transmitting means for transmitting the value of the variable discrimination code to the variable discrimination code generating means. To do.

[0016]

Therefore, according to the first aspect of the present invention, since the remote control device transmits and receives by the variable identification code that changes with time, even if the variable identification code is stored by the learning remote controller, When the user tries to operate with the stored variable identification code, the reception code and the variable discrimination code do not match because the variable discrimination code of the receiving device has already changed over time.

According to the second aspect of the present invention, when the received code and the variable discrimination code match or approximate to each other, the value of the discrimination code is made to coincide with the value of the received code. Therefore, between the variable discrimination code and the variable discrimination code. Deviations will not be accumulated.

According to the third aspect of the present invention, the transmitting device and the receiving device are provided with storage means for storing the fixed identification code and the fixed discrimination code, respectively.
It becomes possible for the receiving device to surely identify which of the transmitting devices is the transmission signal from itself.

According to the fourth aspect of the invention, the variable discrimination code is transmitted to the variable discrimination code generating means through the variable discrimination code transmitting means and the variable discrimination code receiving means, and the value of the variable discrimination code is changed to the variable discrimination code. Since the values of are matched, the deviation between the variable identification code and the variable discrimination code is not accumulated. In addition, when the transmission means has not been used for a long time, the deviation between the variable identification code and the variable discrimination code is accumulated, and when the reception code and the variable discrimination code do not match, the variable discrimination code transmission means and the variable discrimination code are also different. The variable identification code and the variable discrimination code can be matched again by connecting to the receiving means and transmitting.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is embodied in a remote control device for a vehicle will be described below with reference to FIGS.

As shown in FIG. 2, the key holder 1 has a transmitter T built therein. A push button 2 is provided on the upper surface of the key holder 1. On the front surface of the key holder 1, a light emitting section 3 including an infrared light emitting element is provided. Further, a receiver R is provided in the interior of an automobile (not shown).

As shown in FIG. 1, the transmitter T has an operating circuit 1
1, MCU (Micro Computer Unit) 12, decoder circuit 13, variable identification code (hereinafter referred to as variable ID code) memory 14, fixed identification code (hereinafter referred to as fixed ID code) memory 15, clock generation circuit 16, modulation circuit 17 And a light emitting circuit 18. The variable identification code generating means is composed of the MCU 12, the variable identification code memory 14 and the clock generation circuit 16.

The operation circuit 11 is provided with the push button 2. The MCU 12 is connected to the operation circuit 11, and the operation circuit 11 outputs a depression signal to the MCU 12 by operating the push button 2.

The MCU 12 has a variable ID code memory 1
4, the fixed ID code memory 15 and the decoder circuit 13 are connected. A clock generating circuit 16 is connected to the variable ID code memory 14. Clock generation circuit 1
The clock pulse generation period of 6 is set to 1 minute in this embodiment. The variable ID code memory 14 counts the number of clock pulses generated by the clock generation circuit 16, rewrites the count value at each time, and stores it as an 8-bit signal. Then, the count value stored in the variable ID code memory 14 is used as the transmission side variable ID code S1 which changes with time. The fixed ID code memory 15 stores a preset 16-bit transmission-side fixed ID code S2 for distinguishing from another vehicle. When the pressing signal is input, the MCU 12 reads the variable ID code S1 on the transmitting side at that time from the variable ID code memory 14 and the fixed ID code S2 on the transmitting side from the fixed ID code memory 15. Then, the MCU 12 synthesizes both the ID codes S1 and S2 into a 24-bit identification code S3 as shown in FIG. 3 and outputs it to the decoder circuit 13.

A modulation circuit 17 is connected to the decoder circuit 13. The decoder circuit 13 parallel-serial converts the input identification code S3 and outputs it to the modulation circuit 17. A light emitting circuit 18 is connected to the modulation circuit 17. The modulation circuit 17 frequency-modulates the input identification code S3 with a carrier signal of a predetermined frequency (38 kHz in this embodiment),
The modulated signal is output to the light emitting circuit 18.

The light emitting circuit 18 is provided with the light emitting section 3. The light emitting circuit 18 causes the light emitting unit 3 to emit light based on the input modulation signal, and sends the modulation signal as infrared rays. Next, the configuration of the receiver R will be described.

As shown in FIG. 1, the receiver R is a light receiving circuit 2
1, an amplifier circuit 22, a demodulation circuit 23, a decoder circuit 24,
MCU 25 as correction means, variable ID code memory 2
6, fixed ID code memory 27 and clock generation circuit 2
It is composed of 8. The variable discrimination code generating means is composed of the MCU 25, the variable ID code memory 26 and the clock generating circuit 28.

The light receiving circuit 21 is provided with a light receiving element 29. An amplifier circuit 22 is connected to the light receiving circuit 21. When the light receiving element 29 receives the infrared light, the light receiving circuit 21 converts the signal into an electric signal and outputs it to the amplifier circuit 22. A demodulation circuit 23 is connected to the amplification circuit 22. Then, the amplifier circuit 22 amplifies the input signal to a level suitable for the demodulation circuit 23, and outputs it to the demodulation circuit 23. A decoder circuit 24 is connected to the demodulation circuit 23. The demodulation circuit 23 separates the received signal from the input signal and outputs it to the decoder circuit 24. The MCU 25 is connected to the decoder circuit 24. When receiving the received signal, the decoder circuit 24 performs serial-parallel conversion on the received signal and outputs it to the MCU 25 as a received code S4.

The MCU 25 has a variable ID code memory 2
6, the fixed ID code memory 27 and the door lock control circuit 30 are connected. A clock generation circuit 28 is connected to the variable ID code memory 26. Similar to the clock generation circuit 16 of the transmitter T, the clock pulse generation cycle of the clock generation circuit 28 is set to 1 minute. The variable ID code memory 26 counts the number of clock pulses generated by the clock generation circuit 28, rewrites the count value at each time, and stores it as an 8-bit signal. The count value stored in the variable ID code memory 26 is used as the receiving side variable ID code S5 which changes with time.

In the fixed ID code memory 27, a fixed 16-bit receiving side fixed ID is set in order to distinguish it from another vehicle.
The code S6 is stored. The reception side fixed ID code S6 matches the transmission side fixed ID code S2. Then, the MCU 25 synthesizes the reception side variable ID code S5 and the reception side fixed ID code S6 and inputs them as a 16-bit discrimination code S7. Upon receiving the reception code S4, the MCU 25 reads out the discrimination code S7 and compares it with the reception code S4. At this time, the variable ID code and the fixed ID code are compared with each other. Since the variable code cannot completely match the clock pulse generation periods of the clock generation circuits 16 and 28, an error occurs with the passage of time between the transmission side variable ID code S1 and the reception side variable ID code S5. Come on. Therefore, when comparing the variable codes, a certain allowable error range α is set, and it is considered that the variable codes match within the allowable error range α. The allowable error range α is set by the accuracy of the clock pulse generation cycle of the clock generation circuits 16 and 28 with respect to the set cycle.

When the variable code and the fixed code match, the MCU 25 determines that the door lock control circuit 30
The door lock control signal S8 is output to and the door is locked or unlocked. If the variable code is misaligned, the variable ID code memory 2 is determined based on the received code S4.
The value of the variable ID code S5 on the receiving side stored in 6 is corrected to the value of the variable ID code S1 on the transmitting side at that time, and the difference in clock pulse number between the variable ID code S1 on the transmitting side and the variable ID code S5 on the receiving side is corrected. Do not accumulate.

Next, the operation of the remote control device configured as described above will be described. Variable ID
The values of the code memories 14 and 26 are set to the same value in advance.

The driver approaches the automobile and pushes the push button 2 of the key holder 1 to unlock the door. The transmitter T built in the key holder 1 outputs a depression signal to the MCU 12 by operating the push button 2. In response to the depression signal, the MCU 12 reads the transmission side variable ID code S1 formed by the clock generation circuit 16 from the variable ID code memory 14 and the transmission side fixed ID code S2 from the fixed ID code memory 15, respectively. Then, the MCU 12 synthesizes the input variable ID code S1 on the transmitting side and the fixed ID code S2 on the transmitting side, and outputs them to the decoder circuit 13 as an identification code S3. The decoder circuit 13 performs parallel-serial conversion of the input identification code S3 and outputs it to the modulation circuit 17.

The modulation circuit 17 adds a carrier signal of a predetermined frequency to the identification code S3 to perform frequency modulation, and outputs the modulated signal to the light emitting circuit 18. The light emitting circuit 18 causes the light emitting unit 3 to emit light based on the input modulation signal, and sends the modulation signal as infrared rays.

The light receiving circuit 21 of the receiver R receives the infrared light transmitted from the transmitter T by the light receiving element 29. And
The light receiving circuit 21 converts the received infrared light into an electric signal and outputs a received signal to the amplifier circuit 22. The amplifier circuit 22 amplifies the received signal to a level suitable for the input of the demodulation circuit 23.
The demodulation circuit 23 demodulates the received signal, separates the carrier signal, and outputs it to the decoder circuit 24. The decoder circuit 24 performs serial-parallel conversion on the received signal that has been input, and the received code S4
To the MCU 25.

When the reception code S4 is input to the MCU 25, the reception side variable ID code S5 is read out from the variable ID code memory 26, the reception side fixed ID code S6 is read out from the fixed ID code memory 27, and combined to be inputted as the discrimination code S7. To do. Then, the MCU 25 compares the discrimination code S7 with the reception code S4. This comparison operation is performed according to the flowchart shown in FIG.

First, a fixed ID code for distinguishing from another vehicle is compared, and if they do not match, the process is returned to the start. Conversely, if the fixed ID codes match, the variable ID
It is compared whether the code is within the tolerance range α. If the variable ID code is not within the allowable error range α, the door lock control circuit 30 does not output the door lock control signal S8 and returns to the start. If the variable ID codes match, the received code S4 is correct and the door lock control circuit 30 outputs a door lock control signal S8. Then, the door lock control circuit 30 outputs the door lock control signal S8.
In response to lock or unlock the door.

When the variable ID code is deviated within the allowable error range α, the deviation is not accumulated in the clock pulse numbers of the transmission side variable ID code S1 and the reception side variable ID code S5. Variable I based on code S4
The value of the reception side variable ID code S5 stored in the D code memory 26 is corrected to the value of the transmission side variable ID code S1 at that time.

As described above, according to the remote control device for a vehicle of this embodiment, the variable ID on the transmission side corresponding to time
Since the identification code S3 includes the code S1, even if the identification code S3 is stored in the learning remote controller, when the identification code S3 is to be used next time, the reception side variable ID code S5 of the receiver R, that is, the identification code. S7 is changing. As a result, the reception code S4 and the discrimination code S7 do not match, and there is no possibility that the door will be locked or unlocked.

If the variable ID codes S1 and S5 match, the value of the variable ID code S5 on the receiving side stored in the variable ID code memory 26 of the receiver R is set to the value of the variable ID code S1 on the transmitting side at that time. Since the value is corrected, the deviation of the number of clock pulses between the transmitting side variable ID code S1 and the receiving side variable ID code S5 is not accumulated.

The present invention is not limited to the above embodiment, and may be modified as follows, for example, without departing from the spirit of the present invention. (1) In the above embodiment, infrared rays were used for transmission / reception, but short wave or the like may be used for transmission / reception.

(2) Although the transmitter T is mounted on the key holder 1 in the above embodiment, the transmitter T may be mounted on the ignition key 4 as shown in FIG. In this case, the deviation of the clock pulse number between the transmission side variable ID code S1 and the reception side variable ID code S5 may be corrected when the ignition key 4 is inserted into the key cylinder 5.

That is, as shown in FIG. 5, the MCU 12 is connected to the clock generation circuit 16 of the transmitter T. A variable ID code receiving circuit 31 is connected to the MCU 12. The transmitter-side terminal 6 is connected to the variable ID code receiving circuit 31. This transmitter side terminal 6
Is provided on the front end surface of the ignition key 4 as shown in FIG.

On the other hand, the MCU 25 of the receiver R has a variable ID.
The code transmission circuit 32 is connected. And variable I
The receiver side terminal 7 is connected to the D code transmission circuit 32. This receiver-side terminal 7 is provided at the front accessory rotation position of the key cylinder 5 as shown in FIG.
Therefore, when the ignition key 4 is inserted into the key cylinder 5 and rotated to the accessory position, the transmitter-side terminal 6
And the terminal 7 on the receiver side are connected. Then, the variable ID code transmission circuit 32 outputs the reception side variable ID code S5 to the variable ID code reception circuit 31 of the transmitter T via the receiver side terminal 7 and the transmitter side terminal 6. The variable ID code receiving circuit 31 outputs the input receiving side variable ID code S5 to the MCU 12. The MCU 12 sends the variable ID on the transmitting side based on the value of the variable ID code S5 on the receiving side.
Correct the value of code S1.

On the contrary, the variable ID code S1 on the transmitting side may be transmitted to correct the variable ID code S5 on the receiving side. That is, the transmitter T may be provided with the variable ID code transmission circuit 32, and the receiver R may be provided with the variable ID code reception circuit 31.

In this embodiment, when the transmitter T is not used for a long time, the deviation of the clock pulse number between the transmitting side variable ID code S1 and the receiving side variable ID code S5 is accumulated, and the signal from the transmitter T is transmitted. Is especially effective when the door cannot be unlocked even after sending. That is, the ignition key 4 is inserted into the keyhole of the door, the ignition key 4 is rotated to unlock the door, and then the ignition key 4 is inserted into the key cylinder 5 and rotated to the accessory position. The machine side terminal 6 and the receiver side terminal 7 are connected. Then, the receiving side variable ID code S5 is input to the variable ID code receiving circuit 31 of the transmitter T and further to the MCU 12, and the value of the transmitting side variable ID code S1 is corrected.
As a result, the next time the push button 2 of the transmitter T is pressed, the door can be locked and unlocked.

Further, in this embodiment, the deviation of the number of clock pulses between the variable ID code S1 on the transmitting side and the variable ID code S5 on the receiving side is corrected by the MCUs 12 and 25 based on the other value. Was solved by
The MCUs 12 and 25 may reset the variable ID code memories 14 and 26 of the transmitter T and the receiver R to eliminate the deviation. By doing so, it is only necessary to provide the receiver R with detection means for detecting that the ignition key 4 has been inserted into the key cylinder 5, and the variable ID code receiving circuit 31 and the variable I code receiving circuit 31 can be provided.
It is not necessary to provide the D code transmission circuit 32.

(3) In the above embodiment, the identification code and the discrimination code are composed of the fixed ID code and the variable ID code, but the identification code and the discrimination code may be composed of only the variable ID code.

(4) In the above embodiment, the clock pulse generation cycle of the clock generation circuits 16 and 28 is set to 1 minute, but it may be set to any time. However, the next time you try to use the identification code stored in the learning remote controller,
It should be set within a range in which the reception side variable ID code S5 on the receiver R side changes.

(5) In the above embodiment, the variable ID code memories 14 and 26 count the number of clock pulses generated by the clock generating circuits 16 and 28 for the variable ID codes S1 and S5 which change with time, and the variable ID code memories 14 and 26 count the time. Although the count value was rewritten and stored as an 8-bit signal and used, it may be changed as follows.

The generation cycle of the clock pulse generated by the clock generation circuits 16 and 28 is changed with time, and the generation cycle is read by the MCUs 12 and 25.
The variable ID code memories 14 and 26 may be converted into 8-bit signals corresponding to the generation period and stored in the variable ID code memories 14 and 26 to form the variable ID codes S1 and S5.

(6) In the above embodiment, when the received code S4 and the discrimination code S7 are compared, the variable code and the fixed code are compared separately, but they may be compared simultaneously.

(7) In the above embodiment, the fixed code, the variable code, and the identification code are set to 16 bits, 8 bits, and 24 bits, respectively, but they may be set to any number of bits.

(8) In the above embodiments, the present invention is applied to the vehicle remote control device, but it may be applied to an opening / closing device such as an automatic shutter provided in a garage. Also in this case, there is no risk that data will be stored in the learning remote controller, the shutter will not be opened or closed illegally, and the safety of the remote control device will be improved.

[0055]

As described above in detail, according to the invention of claim 1 of the present invention, since the identification code includes the variable identification code corresponding to the passage of time, even if the learning remote controller stores the identification code. However, the identification code has an excellent effect that the operation cannot be performed.

According to the second aspect of the present invention, when the received code and the discrimination code match or approximate to each other, the value of the discrimination code is made to coincide with the value of the received code. Therefore, between the variable discrimination code and the variable discrimination code. Misalignment does not accumulate.

According to the third aspect of the present invention, the receiving device can surely identify which of the transmitting device itself and the other transmitting device. Therefore, in normal times, the transmission signal from another transmitting device is transmitted. It is not operated by signals.

According to the invention of claim 4, the variable discrimination code is transmitted by connecting the variable discrimination code transmitting means and the variable discrimination code receiving means, and the value of the variable discrimination code is matched with the value of the variable discrimination code. Therefore, the deviation between the variable identification code and the variable discrimination code is not accumulated. Further, even if the variable identification code and the variable discrimination code are accumulated due to the fact that the transmitter is not used for a long time and they do not match each other, the variable identification code and the variable discrimination code can be matched again.

[Brief description of drawings]

FIG. 1 is a block diagram of a transmitter and a receiver of a vehicle remote control device according to an embodiment of the present invention.

FIG. 2 is a perspective view of a key holder, an ignition key and a receiver showing an embodiment of the present invention.

FIG. 3 is a diagram showing a configuration of an identification code.

FIG. 4 is a flowchart showing a comparison operation of MCUs of a receiver.

FIG. 5 is a block diagram of a transmitter and a receiver of a remote control device for a vehicle when the receiver is mounted on an ignition key.

FIG. 6 is a block diagram of a transmitter and a receiver of a conventional vehicle remote control device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Key holder, 2 ... Push button as an operating means, 4
... ignition key, 12 ... MCU of transmitter as correction means, 14 ... fixed ID code memory as fixed identification code storage means, 16 ... clock generation circuit, 25 ... MCU of receiver as correction means, correction means, 27 ... Fixed ID code memory as fixed discrimination code storage means, 2
8 ... Clock generating circuit, 31 ... Variable ID code receiving circuit as variable discrimination code receiving means, 32 ... Variable ID code transmitting circuit as variable discrimination code transmitting means, T ... Transmitter, R ... Receiver, S1 ... Transmission side Variable ID code, S2 ...
Sending side fixed ID code, S3 ... Identification code, S4 ... Reception code, S5 ... Reception side variable ID code, S6 ... Reception side fixed ID code, S7 ... Discrimination code, α ... Allowance when comparing reception code and discrimination code Error range.

Claims (11)

[Claims] 1. A transmission device provided with an operation means for transmitting an identification code and a variable identification code generation means for generating a variable identification code by changing the identification code with time, and receiving an identification code from the transmission device. Received as a code,
A remote control device comprising: a comparison device for comparing the received code with the discrimination code; and a receiving device provided with variable discrimination code generation means for changing the discrimination code over time to generate a variable discrimination code. 2. The remote control device according to claim 1, wherein the variable discrimination code generating means includes a correcting means for causing the value of the discrimination code to coincide with the value of the reception code when the reception code and the discrimination code match or approximate each other. Remote control device provided. 3. The remote control device according to claim 1, wherein the identification code comprises a fixed identification code part and a variable identification code part, and the value of the fixed identification code part is stored in the fixed identification code storage means. And the discrimination code is composed of a fixed discrimination code part and a variable discrimination code part, and the value of the fixed discrimination code part is a receiving device stored in the fixed discrimination code storage means. 4. The remote control device according to claim 1, wherein the variable identification code generating means matches the variable discrimination code receiving means for receiving the variable discrimination code, and the value of the received variable discrimination code matches the value of the variable identification code. A remote control device comprising: a transmitter provided with a correction means for controlling the variable discrimination code; and a receiver provided with variable discrimination code transmission means for transmitting the value of the variable discrimination code to the variable discrimination code generation means. 5. A remote control transmission device provided with operating means for transmitting an identification code and variable identification code generating means for changing the identification code over time to generate a variable identification code. 6. The remote control transmission device according to claim 5, wherein the identification code comprises a fixed identification code part and a variable identification code part, and the value of the fixed identification code part is stored in the fixed identification code storage means. Transmitter for remote control. 7. The remote control transmission device according to claim 5, wherein the variable identification code generating means has a variable discrimination code receiving means for receiving the variable discrimination code, and the value of the received variable discrimination code is the value of the variable identification code. A transmitter for remote control, which is provided with a correction means for matching the above. 8. A remote control provided with a comparison means for receiving a received code and comparing the received code with the discrimination code and a variable discrimination code generation means for changing the discrimination code with time to generate a variable discrimination code. Receiver. 9. The remote control receiving device according to claim 8, wherein the variable discrimination code generating means causes the value of the discrimination code to coincide with the value of the reception code when the reception code and the variable discrimination code match or approximate to each other. A remote control receiver equipped with correction means. 10. The remote control receiving device according to claim 8, wherein the discrimination code comprises a fixed discrimination code section and a variable discrimination code section, and the value of the fixed discrimination code section is stored in the fixed discrimination code storage means. Receiver for remote control. 11. The remote control receiving device according to claim 8, wherein the variable discrimination code generating means is provided with a variable discrimination code transmitting means for transmitting the variable discrimination code.