JP2006311069A - Remote control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a remote control system that causes a remotely controlled device to securely implement processing contents even when another device which generates infrared light of frequency close to a carrier frequency used for a control code is present nearby the remotely controlled device. <P>SOLUTION: The remote control system comprises a remote control device 1 which transmits the control code with infrared light and the remotely controlled device 2 which performs processing designated by a received control code, wherein the remote control device 1 is equipped with transmission sections 12 and 13 which can transmit the control code with infrared light beams of different carrier frequencies, and the remotely controlled device 2 is equipped with a plurality of reception sections 22 and 23 which correspond to the light beams of the different carrier frequencies and receive them to decode control codes, a storage section 31 which stores control codes, a plurality of stored code comparison sections 32 and 33 which compare the control codes from the reception sections 22 and 23 with the control codes in the storage section 31, and a control section 21 which performs processing contents corresponding to control codes whose comparison result indicates a coincidence. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a remote control device that transmits a control code using infrared light of a predetermined carrier frequency, and a remote control that identifies a control code from received infrared light and performs a process specified by the control code The present invention relates to a remote control system composed of a device.

  In the conventional remote control system, the remote control device side includes a transmission unit capable of transmitting infrared light of a predetermined carrier frequency, and uses the transmission unit to cause the remote control device to execute the processing contents. A control code is being sent. In addition, the remote control device side includes a light receiving unit capable of receiving infrared light of a predetermined carrier frequency, receives the control code transmitted from the remote control device using the receiving unit, and further receives the control code. The processing content (operation) based on the control code is performed.

  However, when there is noise light having a frequency that is equal to or very close to the infrared light of the carrier frequency received by the light receiving unit, noise is mixed in the control code received by the remote control device, and the remote control device There was a problem that may malfunction. In order to improve this problem, a method is known in which a blocking object is provided on a part of the light receiving surface on the light receiving unit side, and noise is prevented from interfering with the control code by narrowing the light receiving range (for example, patents). Reference 1).

Japanese Patent Laid-Open No. 06-160758

  However, even in the remote control system disclosed in Patent Document 1, the remote control device transmits a control code for causing the remote control device to execute the processing contents using a predetermined carrier frequency, and the remote control device Since the side also receives only the control code transmitted using the predetermined carrier frequency and executes the processing contents, for example, the predetermined carrier used for the control code in the vicinity of the remote control device. If there is another device that generates infrared light with a frequency that is equal to or very close to the frequency, the infrared light becomes interference frequency light (noise light) and the control code sent from the remote control device is correctly set. It becomes impossible to receive.

  As a result, it becomes impossible to cause the remote control device to execute the processing contents, or the control code received by the remote control device is recognized as a control code of another processing content, and the remote control device There has been a problem that processing content (processing content not intended by the user) different from the processing content of the control code sent by the user's operation is performed, that is, a situation in which malfunction occurs.

  The present invention has been made to solve the above-described problems, and generates infrared light having a frequency equivalent to or very close to a predetermined carrier frequency used for a control code in the vicinity of a remotely controlled device. Even if another device exists, the remote control device can reliably cause the remote control device to execute the processing contents of the control code sent by the user of the remote control device, that is, the processing content intended by the user. An object is to provide a control system.

The remote control system of the present invention includes a remote control device that transmits a control code using infrared light of a predetermined carrier frequency, and a process specified by the control code by identifying the control code from the received infrared light. A remote control system comprising a remote control device to be implemented,
The remote control device includes a plurality of transmission units that can modulate and transmit the control code with infrared light of different carrier frequencies,
The remote control apparatus receives a plurality of receiving units each corresponding to the light of different carrier frequencies transmitted from each transmitting unit and demodulates the control code, and
A storage unit for storing at least all control codes corresponding to each processing content executed by the remote control device, a plurality of control codes output from each receiving unit, and a plurality of control codes read from the storage unit A storage code comparison unit of
And a control unit that performs processing corresponding to the control code with which the comparison results of the respective storage code comparison units match.

  The remote control system of the present invention can be used even when another device that generates infrared light (interference wave) having a frequency equivalent to or very close to one carrier frequency used for a control code is present in the vicinity of the remotely controlled device. The remote control device can reliably cause the processing content of the control code sent by the operation of the user of the remote control device, that is, the processing content as intended by the user.

Embodiment 1 FIG.
FIG. 1 is a block diagram showing a schematic configuration of the remote control system according to the first embodiment of the present invention.
The remote control system shown in FIG. 1 receives a remote control device 1 that transmits a control code of processing contents intended by a user using infrared light, and the control code of the infrared light. Thus, the remote control device 2 is configured to execute the processing contents based on the control code. In FIG. 1, the portions that are not important for explaining the present invention, such as the input means in the remote control device or the means for executing the processing contents of the control code in the remote control device, are not shown. ing.

  In the remote control device 1, the remote control device control unit 11 that controls the entire processing content (operation) of the remote control device 1 and the infrared light of the first carrier frequency by the input means (not shown) are used by the user. The first frequency light transmitter 12 that can modulate the control code of the processing content input (instructed) by the transmitter and transmit it as the first control code transmission light 3, and the infrared light of the second carrier frequency is input means (not shown) The second frequency optical transmitter 13 that can be modulated by the control code of the processing content input (instructed) by the user and transmitted as the second control code transmission light 4, and the input that can be input (instructed) by the user. A control code storage unit 14 that stores all control codes corresponding to the processing contents of the remote control device 2 is provided.

  When a user performs an input (instruction) from an input unit (not shown) of the remote control device 1, the remote control device control unit 11 determines the input (instruction) content from the input unit, and stores the control code. The control code corresponding to the input content is selected from the unit 14 and read out, and sent to the first frequency optical transmitter 12 and the second frequency optical transmitter 13. In the first frequency light transmission unit 12 and the second frequency light transmission unit 13, infrared light of each carrier frequency modulated using the input control code is converted into two types of first control code transmission light having different carrier frequencies. 3 and the second control code transmission light 4.

  In the remote control device 2, a remote control device control unit 21 that controls the entire processing content (operation) of the remote control device 2 and a first control code sent from the first frequency light transmission unit 12. The first frequency light receiving unit 22 that can restore the original control code by selectively receiving and demodulating the transmitted light 3, and the second control code transmitting light 4 transmitted from the second frequency light transmitting unit 12. The second frequency optical receiver 23 that can restore the original control code by selectively receiving and demodulating the signal, and each control output from the first frequency optical receiver 22 and the second frequency optical receiver 23 Compare the control code stored in advance with the control code, determine the processing contents of each control code and compare them, determine the original control code, and send the control signal to execute the corresponding processing Output to control device controller 21較部 24 is provided.

  In the comparison unit 24, a control code / processing content storage unit 31 that stores all control codes corresponding to each processing content of the remote control device 2 and data indicating the processing content (processing content data) in association with each other. And the original control code restored and output by the first frequency light receiving unit 22 and the corresponding control code read from the control code / processing content storage unit 31, A first frequency storage code comparison unit 32 that outputs code comparison result data indicating whether or not the comparison results match together with the control code output from the first frequency optical reception unit 22; and a second frequency optical reception unit 23. The original control code restored and output at 23 is compared with the corresponding control code read from the control code / processing content storage unit 31, and the comparison result matches. Output from the first frequency storage code comparison unit 32 and the second frequency storage code comparison unit 32 that outputs the code comparison result data indicating whether or not the control code is output together with the control code output from the second frequency optical reception unit 23. Based on the control code, it is output from the first frequency code processing content determination unit 34 and the second frequency storage code comparison unit 33 that determine the control code by reading the corresponding processing content data from the control code / processing content storage unit 31. And a second frequency code processing content determination unit 35 for determining the control code by reading the corresponding processing content data from the control code / processing content storage unit 31 based on the control code.

  Further, in the comparison unit 24, the processing content data output from the first frequency code processing content determination unit 34 and the processing content data output from the second frequency code processing content determination unit 35 are compared and compared. Each frequency code processing content comparison unit 36 that outputs processing content comparison result data indicating whether or not the results match, and each control from both the first frequency storage code comparison unit 32 and the second frequency storage code comparison unit 33 Each code comparison result data is input together with the code, both frequency code processing content comparison unit 36 receives the processing content comparison result data, and both frequency code selection / determination unit 37 for selecting or determining the control code to be output; A control signal for causing the remote control device control unit 21 to execute the processing content based on the control code output from the both frequency code selection / determination unit 37. And a control signal output unit 38 for outputting.

  In both frequency code selection / determination units 37, when both code comparison result data indicate coincidence, the determination is further made based on the processing content comparison result data. If each code comparison result data does not indicate a match, first select the control code on one side individually to determine whether the code comparison result data matches. One control code is selected, and if it does not match, the other control code is selected to determine whether the code comparison result data match.

  Then, when both control codes selected in the above processing match the processing content comparison result data, the both frequency code selection / determination unit 37 selects and outputs the control code, and the processing content If the comparison result data does not match, even if each of the received control codes completely matches one of the stored control codes, both processing contents match. If not, the output is stopped because there is a high probability that one of the control codes selected from them is an erroneous control code. That is, the remote control apparatus is not operated. As a result, for example, the user transmits the control code again, but at that time, the probability that the receiving side completely matches the erroneous control code due to noise is very low. In other words, this is considered to be an extremely rare case, but it is a countermeasure when a correct control code at the time of transmission completely matches an incorrect control code due to noise.

  The first frequency light receiver 22 and the second frequency light receiver 23 are always waiting for the first control code transmission light 3 and the second control code transmission light 4, and when received, demodulate them to the original The control code is restored and output to the comparison unit 24.

  In the comparison unit 24, first, in the first frequency storage code comparison unit 32 and the second frequency storage code comparison unit 33, control codes input from the first frequency light reception unit 22 and the second frequency light reception unit 23, respectively, The control code / processing content storage unit 31 is compared with the corresponding control code, and the code comparison result data indicating whether or not the comparison result matches is output together with the input control code. Next, in the first frequency code processing content determination unit 34 and the second frequency code processing content determination unit 35, a process corresponding to the input control code is received from the control code / processing content storage unit 31 based on the input control code. The content data is read and determined.

  The frequency code processing content comparison unit 36 compares the processing content data determined by the first frequency code processing content determination unit 34 and the second frequency code processing content determination unit 35 to determine whether or not they match. Output processing result comparison result data. Finally, in both frequency code selection / determination unit 37, each code comparison result data and both frequency code processing together with each control code from both first frequency storage code comparison unit 32 and second frequency storage code comparison unit 33 Processing content comparison result data is input from the content comparison unit 36, and control code selection and discrimination are performed. The details will be described later with reference to the flowchart of FIG.

  Thereafter, the control signal output unit 38 outputs a control signal for causing the remote control device control unit 21 to execute the processing contents based on the control code selected and discriminated by the both frequency code selection / determination unit 37. The remote control device control unit 21 performs processing based on the input control signal by controlling a processing execution unit (not shown).

FIG. 2 is a block diagram showing a schematic configuration of each receiving unit provided in the remotely controlled device of FIG.
More specifically, FIG. 2A is a block diagram showing a schematic configuration of the first frequency light receiver 22 provided in the remote control device 2, and FIG. It is a block diagram which shows schematic structure of the 2nd frequency optical receiver 23 provided.

  In FIG. 2A, the first control code transmission light 3 transmitted from the first frequency light transmitter 12 of the remote control device 1 is received by the first frequency light receiver 61 of the first frequency light receiver 22. Then, after gain control, it is input to the first frequency band pass filter (BPF) 62. The BPF 62 outputs the received light and gain-controlled signal as a signal in which the frequency band is limited based on the approximate center frequency of each carrier frequency. In the first frequency detection circuit unit 63, the input signal is demodulated, amplified by a buffer amplifier, and output to the first frequency storage code comparison unit 32 in the comparison unit 24.

  In FIG. 2B, the second control code transmission light 4 transmitted from the second frequency light transmitter 13 of the remote control device 1 is received by the second frequency light receiver 71 of the second frequency light receiver 23. Then, after gain control, it is input to the second frequency band pass filter (BPF) 72. The BPF 72 outputs the received light and gain-controlled signal as a signal whose frequency band is limited with reference to approximately the center frequency of each carrier frequency. In the second frequency detection circuit unit 73, the input signal is demodulated, amplified by a buffer amplifier, and output to the second frequency storage code comparison unit 33 in the comparison unit 24.

FIG. 3 is a flowchart showing a schematic processing content when the control code is discriminated and selected in the comparison unit of FIG.
In this embodiment, in general, noise rarely affects infrared light in a plurality of frequency bands at the same time. In this embodiment, a control code is transmitted using two types of carrier frequencies. Therefore, the comparison unit 24 of the present embodiment is based on the assumption that at least one control code is received in a correct state. In addition, it is based on the assumption that the control code of one carrier frequency in the two systems can be a correct control code indicating completely different processing contents due to noise jumping from the outside, which is impossible. . In the present embodiment, it is determined that the control code is correct based on the above assumptions.

  In FIG. 3, first, the first frequency light receiver 22 always waits for whether or not the first control code transmission light 3 has been received, and the second frequency light receiver 23 receives the second control code transmission light 4. Is always waiting whether or not is received (S1). When the first control code transmission light 3 is received by the first frequency light reception unit 22 and the second control code transmission light 4 is received by the second frequency light reception unit 23 (S1: YES), Each received signal becomes a demodulated control code and is input to the first frequency storage code comparison unit 32 and the second frequency storage code comparison unit 33, respectively, and the first frequency storage code comparison unit 32 and the second frequency storage code comparison unit In 33, each input control code is compared with the corresponding control code read out from the control code / processing content storage unit 31 (S2), and it is determined whether or not the comparison results match (S3). ).

  If the comparison results match (S3: YES), the input control codes are further output to the first frequency code processing content determination unit 34 and the second frequency code processing content determination unit 35, respectively. . If the comparison results do not match (S3: NO), code comparison result data indicating whether or not the comparison results match is output to both frequency code selection / determination units 37 together with the input control code. The

  The first frequency code processing content determination unit 34 and the second frequency code processing content determination unit 35 read and determine the corresponding processing content data from the control code / processing content storage unit 31 based on each input control code, Each processing content data is output to both frequency code processing content comparison unit 36. The both frequency code processing content comparison unit 36 compares the input processing content data (S4), determines whether or not they match (S5), and sets the processing content comparison result data as both frequency code selection / determination unit. To 37.

  When the processing content determined by the first frequency code processing content determination unit 34 and the processing content determined by the second frequency code processing content determination unit 35 match (S5: YES), both frequency codes are selected. The determination unit 37 selects one of the control codes from the outputs from the first frequency storage code comparison unit 32 and the second frequency storage code comparison unit 33 and outputs the selected control code to the control signal output unit 38 (S6). ). By this processing, it is possible to prevent malfunctions even for extremely rare errors in which the correct control code at the time of transmission completely matches the erroneous control code on the receiving side due to noise.

  The control signal output unit 38 outputs a control signal for causing the remote control device control unit 21 to execute the processing content based on the input control code (S7). Then, the remote control device control unit 21 performs processing based on the input control signal by controlling a processing execution unit (not shown) (S8).

  On the other hand, in step S3, when the comparison result does not match (S3: NO), both frequency code selection / determination units 37 respectively include the first frequency storage code comparison unit 32 and the second frequency storage code comparison unit 33. A control code on one side is selected from the input code comparison result data and the control code (S9), and it is determined whether or not the code comparison result data corresponding to the control code match (S10).

  When the code comparison result data corresponding to the control code matches (S10: YES), the control code is output to the control signal output unit 38, and the processes after step S7 are performed. If the code comparison result data corresponding to the control code does not match (S10: NO), the process returns to step S9 again, and the control code on the other side different from the previous one is selected and the code corresponding to the control code. It is determined whether or not the comparison result data match (S10). That is, the process is repeated until a code matching result corresponding to the control code is found. The subsequent processing is the same as the contents shown in steps S7 and S8.

  In addition, when the processing content of step S5 does not match (S5: NO), it is extremely rare that the correct control code at the time of transmission completely matches the wrong control code on the receiving side due to noise. Since it is considered as an error, nothing is output from the both frequency code selection / determination unit 37 to the control signal output unit 38, and therefore the remote control apparatus is inoperative (S11).

  As described above, in the remote control system of the present embodiment, the remote control device 1 that transmits the control code transmission light for executing the processing contents of the remote control device 2 and the remote control device 2 that receives the control code by the light receiving unit. Both are configured to be able to transmit and receive two types of carrier frequencies. That is, from the remote control device 1 side, control codes (first control code transmission light 3 and second control code transmission light 4) are transmitted using infrared light of a plurality of carrier frequencies. Each control code is read for each received carrier frequency.

  When the remote control device 2 determines that the received plurality of control codes indicate the same processing contents as the stored contents, only when the processing contents based on the control codes are further compared and matched. The control code is output so that the situation where the correct control code on the transmitting side completely matches the erroneous control code on the receiving side can be dealt with. If the control code for one carrier frequency matches the stored control code, but the control code for another carrier frequency cannot be read as a control code due to noise, the control code that matches the stored control code It is configured to select only one and execute the processing contents.

  Therefore, even when another device that generates infrared light (jamming wave) having a frequency equivalent to or very close to any one of the carrier frequencies used for the control code exists in the vicinity of the remotely controlled device, the jamming wave The control code for the carrier frequency on the side disturbed by the infrared light of the remote control device is not used, and the processing contents are executed using the control code transmitted from the remote control device at another carrier frequency. The processing contents of the control code (as intended by the user) sent out by the user's operation can be surely executed by the remote control device. Further, even in the case of an extremely rare error in which one of a plurality of control codes completely matches an erroneous control code due to an interference wave, the remote control apparatus can be controlled so as not to malfunction.

Embodiment 2. FIG.
FIG. 4 is a block diagram showing a schematic configuration of the remote control system according to the second embodiment of the present invention.
In the remote control system of the present embodiment shown in FIG. 4, the remote control device 1 of the first embodiment outputs only the first control code transmission light 3 from the first frequency light transmission unit 12. 3 modes of a mode for outputting only the second control code transmission light 4 from the second frequency light transmission unit 13 and a mode for outputting both the first control code transmission light 3 and the second control code transmission light 4 A transmission output switching unit (switch) 15 for switching between is provided.

  Also, the remote controller 2 receives the first frequency light receiver 22 and the second frequency light receiver 23 at the first frequency light receiver 22 in a line for inputting the outputs of the first frequency light receiver 22 and the second frequency light receiver 23 to the comparator 24. A mode in which only the control code demodulated is input to the comparison unit 24, a mode in which only the control code received and demodulated by the second frequency light receiving unit 23 is input to the comparison unit 24, and a first frequency light reception A reception input switching unit (switch) 25 is provided for switching between three modes in which each control code received and demodulated by both the unit 22 and the second frequency light reception unit 23 is input to the comparison unit 24. Other configurations are the same as those in the first embodiment.

  For example, in an environment where the remote control system of the present embodiment is used, if one of the two types of carrier frequencies is known in advance and is not affected by ambient noise, for example, the remote control device 1 to transmit the first control code transmission light 3 from the first frequency optical transmission unit 12 or to output only the second control code transmission light 4 from the second frequency optical transmission unit 13 It can be set in advance by the section (switch) 15. Similarly, also in the remotely controlled device 2, only the control code received and demodulated by the first frequency light receiver 22 is input to the comparator 24, or the control code received and demodulated by the second frequency light receiver 23. It is possible to set in advance by the reception input switching unit (switch) 25 whether or not only the comparison unit 24 is input. Thus, if the switches of the remote control device 1 and the remote control device 2 are selected and switched in advance on the frequency side not affected, the remote control device 2 can be controlled more reliably.

  Further, in the configuration of the second embodiment of the present invention shown in FIG. 4, it is known that both of the two types of carrier frequencies are not affected by ambient noise in advance under the environment where the remote control system is used. In this case, for example, it is possible to install two remote controlled devices 2 in close proximity and control them individually. That is, in the first remote control apparatus 2, the reception input switching unit 25 is set to a mode in which only the control code received and demodulated by the first frequency light receiving unit 22 is input to the comparison unit 24. In the second remotely controlled device 2, the reception input switching unit 25 sets a mode in which only the control code received and demodulated by the second frequency light receiving unit 23 is input to the comparison unit 24. In this way, the transmission input switching unit 15 of the remote control device 1 is set by setting the reception input switching unit (switch) 25 of each of the two remote controlled devices 2 to receive different carrier frequencies. Only by switching, the two remotely controlled devices 2 can be individually controlled. In addition, the reception input switching unit (switch) 25 can be controlled simultaneously by setting the reception input switching units (switches) 25 to receive the same carrier frequency.

  As described above, in the present embodiment, in addition to the effects of the first embodiment, the remote control device 2 can be controlled more reliably by selecting and switching the frequency side that is not affected by the switch in advance. It is possible to control the two remote controlled devices 2 individually or simultaneously.

Embodiment 3 FIG.
FIG. 5 is a block diagram showing a schematic configuration of the remote control system according to the third embodiment of the present invention.
In the remote control system of the present embodiment shown in FIG. 5, the first frequency code processing content determination unit 34 and the second frequency code processing content determination unit 35 are provided for the remote control device 2 of the first embodiment. Furthermore, in place of the control code / process content storage unit 31 of the first embodiment, a control code storage unit 41 that stores only all control codes corresponding to each process content of the remote control device 2; Moreover, it replaces with both frequency code process content comparison part 36 of Embodiment 1, and compared each control code compared in the 1st frequency storage code comparison part 32 and the 2nd frequency storage code comparison part 33, and the comparison result Both frequency code comparison units 42 for outputting both control code comparison result data indicating whether or not are coincident with the input control code.

  Both frequency code selection / determination unit 43 receives each code comparison result data together with each control code from both first frequency storage code comparison unit 32 and second frequency storage code comparison unit 33, and both frequency code comparison units Both control code comparison result data are input from 42, and a control code to be output is selected or judged. Other configurations are the same as those in the first embodiment.

FIG. 6 is a flowchart showing a schematic processing content when the control code is discriminated and selected in the comparison unit of FIG.
In FIG. 6, the difference from the first embodiment is that in step S14, the received control codes are compared by both frequency code comparison units 42 to determine whether or not they match (S15). The code comparison result data is output to both frequency code selection / determination unit 43.

  When the control code that has been compared with the stored content by the first frequency storage code comparison unit 32 matches the control code that has been compared with the stored content by the second frequency storage code comparison unit 33 In (S15: YES), the both frequency code selection / determination unit 43 selects one of the control codes from the outputs from the first frequency storage code comparison unit 32 and the second frequency storage code comparison unit 33. Is output to the control signal output unit 38 (S6). By this processing, it is possible to prevent malfunctions even for extremely rare errors in which the correct control code at the time of transmission completely matches the erroneous control code on the receiving side due to noise.

In addition, when the processing content of step S15 does not match (S15: NO), it is extremely rare that the correct control code at the time of transmission completely matches the wrong control code on the receiving side due to noise. Since it is considered as an error, nothing is output from the both frequency code selection / determination unit 43 to the control signal output unit 38, and therefore the remote control apparatus is inoperative (S11).
Since other processes are the same as those in the first embodiment, description thereof is omitted.

  As described above, in the remote control device 2 of the remote control system of the present embodiment, when it is determined that the plurality of received control codes indicate the same processing contents as the stored contents, each received control code Further, the control code is output only when they match, so that the situation where the correct control code on the transmission side completely matches the erroneous control code on the reception side can be dealt with. If the control code for one carrier frequency matches the stored control code, but the control code for another carrier frequency cannot be read as a control code due to noise, the control code that matches the stored control code It is configured to select only one and execute the processing contents.

  Therefore, also in the present embodiment, the same effect as in the first embodiment can be obtained with a simpler configuration. In particular, one of a plurality of control codes is completely matched with an erroneous control code by an interference wave. Even for extremely rare errors that may occur, the remote control device can be controlled so as not to malfunction.

  The present invention can be applied to any device that performs remote operation using infrared light, but infrared light (interfering light) having a frequency equivalent to or very close to any one of the carrier frequencies used in the vicinity of the control code. If an example in which there is another device that generates a wave), it can be applied to a remote operation of a front projection type projector device, for example.

It is a block diagram which shows schematic structure of the remote control system of Embodiment 1 of this invention. It is a block diagram which shows schematic structure of each receiving part with which the remote control apparatus of FIG. 1 was equipped. It is a flowchart which shows the outline processing content at the time of discrimination | determination and selection of a control code in the comparison part of FIG. It is a block diagram which shows schematic structure of the remote control system of Embodiment 2 of this invention. It is a block diagram which shows schematic structure of the remote control system of Embodiment 3 of this invention. It is a flowchart which shows the outline processing content at the time of discrimination | determination and selection of a control code in the comparison part of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Remote control apparatus, 2 Remote control apparatus, 3 1st control code transmission light, 4 2nd control code transmission light, 11 Remote control apparatus control part, 12 1st frequency light transmission part, 13 2nd frequency light transmission part, 14 control code storage unit, 15 transmission output switching unit, 21 remote controlled device control unit, 22 first frequency light receiving unit, 23 second frequency light receiving unit, 24 comparison unit, 25 receiving input switching unit, 32 first frequency Storage code comparison unit, 33 second frequency storage code comparison unit, 34 first frequency code processing content determination unit, 35 second frequency code processing content determination unit, 36 both frequency code processing content comparison unit, 37, 43 both frequency code selection / Discriminating unit, 38 control signal output unit, 41 control code storage unit, 42 both frequency code comparison unit, 61 first frequency light receiving unit, 62 first frequency band pass filter ( BPF), 63 First frequency detection circuit unit, 71 Second frequency light receiving unit, 72 Second frequency band pass filter (BPF), 73 Second frequency detection circuit unit

Claims (11)

A remote control device that transmits a control code using infrared light of a predetermined carrier frequency, and a remote control device that identifies the control code from the received infrared light and performs processing specified by the control code A remote control system comprising:
The remote control device includes a plurality of transmission units that can modulate and transmit the control code with infrared light of different carrier frequencies,
The remote control device receives a plurality of receiving frequencies transmitted from the transmitting units in response to light of different carrier frequencies and demodulates the control codes, respectively.
A storage unit for storing at least all the control codes corresponding to each processing content executed by the remote control device;
A plurality of storage code comparison units for comparing each control code output from each receiving unit and each control code read from the storage unit;
A remote control system comprising: a control unit that executes processing corresponding to a control code having a comparison result of each storage code comparison unit. Each of the storage code comparison units outputs code comparison result data obtained by comparing a control code output from each of the reception units and a corresponding control code read from the storage unit. The remote control system according to claim 1, wherein the remote control system outputs the code together with the code. Each control code corresponding to each code comparison result data from each storage code comparison unit is input,
Select each control code in sequence and determine whether the corresponding code comparison result data matches,
The remote control system according to claim 2, further comprising a selection / discrimination unit that outputs the control code to the control unit when they match. Further comprising both code comparison units for outputting both control code comparison result data comparing each control code determined by each storage code comparison unit,
2. The control unit executes a processing content corresponding to a control code in which a comparison result of both code comparison units matches or a control code in which a comparison result of each storage code comparison unit matches. The remote control system according to any one of to 3. The selection / discrimination unit receives both control code comparison result data of both code comparison units in addition to each code comparison result data from each storage code comparison unit and each control code corresponding thereto,
If the two control code comparison result data match, the control code corresponding to the two control code comparison result data is output to the control unit,
If the two control code comparison result data do not match, each control code from each storage code comparison unit is sequentially selected, and it is determined whether the corresponding code comparison result data matches, The remote control system according to claim 4, wherein if the control code is correct, the control code is output to the control unit. A remote control device that transmits a control code using infrared light of a predetermined carrier frequency, and a remote control device that identifies the control code from the received infrared light and performs processing specified by the control code A remote control system comprising:
The remote control device includes a plurality of transmission units that can modulate and transmit the control code with infrared light of different carrier frequencies,
The remote control device receives a plurality of receiving frequencies transmitted from the transmitting units in response to light of different carrier frequencies and demodulates the control codes, respectively.
A storage unit that stores at least all the control codes corresponding to each processing content executed by the remote control device, and processing content data indicating each processing content corresponding to the control code;
A plurality of processing content determination units for determining processing content data corresponding to each control code output from each receiving unit;
A processing content comparison unit for outputting processing content comparison result data comparing each processing content data determined by each processing content determination unit;
A remote control system comprising: a control unit that executes a process content corresponding to a control code having a matching result of the process content comparison unit. A plurality of storage code comparison units for comparing each control code output from each receiving unit and each control code read from the storage unit;
7. The control unit executes a process content corresponding to a control code that matches a comparison result of a process content comparison unit or a control code that matches a comparison result of each storage code comparison unit. The remote control system described in. Each of the storage code comparison units outputs code comparison result data obtained by comparing a control code output from each of the reception units and a corresponding control code read from the storage unit. The remote control system according to claim 7, wherein the remote control system outputs the code together with the code. Each control code corresponding to each code comparison result data from each storage code comparison unit is input together with the processing content comparison result data from the processing content comparison unit,
If the processing content comparison result data match, the control code corresponding to the processing content comparison result data is output to the control unit,
When the processing content comparison result data does not match, each control code from each of the storage code comparison units is sequentially selected, and it is determined whether or not the corresponding code comparison result data matches. The remote control system according to claim 8, further comprising a selection / discrimination unit that outputs the control code to the control unit when the control code is present. Among a plurality of transmission units of the remote control device, a transmission output switching unit capable of switching a transmission unit that transmits a control code;
The receiving input switching part which can switch the receiving part which receives a control code among the several receiving parts of the said remote control apparatus is provided in any one of Claims 1-9 characterized by the above-mentioned. The remote control system described. In the plurality of remotely controlled devices, each reception input switching unit is set in advance to be a receiving unit having a different carrier frequency,
The remote control system according to claim 10, wherein a transmission output switching unit of the remote control device is used to remotely control each remote control device individually.

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