CN102436736B - Infrared receiving head and control board containing same as well as receiving device of infrared remote control system - Google Patents
Infrared receiving head and control board containing same as well as receiving device of infrared remote control system Download PDFInfo
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- CN102436736B CN102436736B CN201110460944.3A CN201110460944A CN102436736B CN 102436736 B CN102436736 B CN 102436736B CN 201110460944 A CN201110460944 A CN 201110460944A CN 102436736 B CN102436736 B CN 102436736B
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Abstract
The invention discloses an infrared receiving head, relating to the technical field of infrared remote control. The infrared receiving head comprises a photosensitive module, a prepositioned amplification treatment module and a built-in MCU (Microprogrammed Control Unit), and is provided with a programming end and a panel key button connection end; and an infrared remote control signal output end of the prepositioned amplification treatment module is connected with a control signal I/O (Input/Output) end of the built-in MCU. The built-in MCU is used for detecting the control signal I/O end and carrying out time-shared control on input and output states of the control signal I/O end. The photosensitive module, the prepositioned amplification treatment module and the built-in MCU are packaged together. The invention further discloses a control board containing the infrared receiving head and a receiving device of an infrared remote control system. According to the invention, the control of an infrared remote control signal, a panel key button instruction and an LED (Light-emitting Diode) indication lamp is integrally carried out in the infrared receiving head, so that connector assemblies and electric wires between the control board and a main control board are reduced and the stability of the control board and the whole infrared remote control system are improved.
Description
Technical field
The present invention relates to Infrared Ray Remote Control Technology, relate in particular to a kind of infrared receiving terminal technology of infrared remote control system of integrative packaging.
Background technology
Infrared remote control system is comprised of emitter and receiving trap, and emitter comprises that infrared transmitter is usually said telepilot, and telepilot is comprised of several parts such as instruction key, instruction encoding circuit and radiating circuits.Receiving trap is comprised of several parts such as receiving circuit, instruction decoding circuit and executive circuits.In practical application, integrated infrared receiving terminal is realized infrared remote-controlled signal reception, amplification, demodulation function as the receiving circuit in receiving trap, and the infrared remote-controlled signal after output amplification demodulation is to the middle encoded control of the main control MCU (Micro Control Unit, microcontroller) in receiving trap.
The input instruction recognition methods of panel button has two kinds of direct-type and matrix-scanning-types.Direct-type: by button, directly level is flowed to main control MCU, each button takies I/O of main control MCU (input/output, input and output) port.Matrix-scanning-type: the M x N of matrix-scanning-type (M, N are greater than 0 natural number) position button takies M+N I/O port of main control MCU.No matter be any mode, the processing of main control MCU counter plate key command all will take at least one I/O port of main control MCU.The infrared remote-controlled signal input generally independently takies the I/O port in each comfortable main control MCU with panel button instruction input, as shown in Figure 1.
Main control MCU is according to pre-set programs, and the panel button instruction that the counter plate key command is identified and is converted into after coding is controlled.
The LED state pilot lamp be used to indicate infrared remote control system by the duty of remotely-controlled object, be installed in receiving trap, the LED state pilot lamp connectivity port by master control borad is connected with main control MCU, by main control MCU, is controlled.
Reception, the indication of LED state pilot lamp and the operation of panel button for convenience of infrared remote-controlled signal, the integrated infrared receiving terminal of infrared remote control system, panel button and LED state pilot lamp will be arranged on the same control panel, and main control MCU generally is installed on master control borad.Just need between control panel and master control borad like this to use more connector to be connected with electric wire, reduced the stability of whole infrared remote control system, control panel and master control borad annexation schematic diagram as shown in Figure 2, be take general television set as example.
Summary of the invention
Technical matters to be solved by this invention is: the control of infrared remote-controlled signal, panel button instruction and LED state pilot lamp divides the polylith circuit board to control, and whole system need to be used more connector to be connected with electric wire, affects system stability.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is:
The first purpose of the present invention is to provide a kind of infrared receiving terminal, comprises photosensitive module, preposition amplification processing module and built-in MCU, is provided with programming end, panel button link, wherein
Photosensitive module is carried out opto-electronic conversion and the infrared remote-controlled signal after conversion is inputted to preposition amplification processing module for receiving infrared remote-controlled signal.
Preposition amplification processing module is for being amplified the infrared remote-controlled signal after demodulation is amplified in output after demodulation to infrared remote-controlled signal, preposition amplification processing module is provided with the infrared remote-controlled signal output terminal.
Built-in MCU connects the programming end of infrared receiving terminal, receives programming instruction and is encoded; Built-in MCU connects the panel button link of infrared receiving terminal, receives the panel key command and is encoded, the panel button instruction after output encoder; Built-in MCU is provided with control signal I/O end.
The infrared remote-controlled signal output terminal of described preposition amplification processing module and the control signal I/O of built-in MCU end link together.
Further, described built-in MCU is detected control signal I/O end under the control of programming instruction, and input, the output state of control signal I/O end carried out to timesharing control: when control signal I/O holds in input state, built-in MCU detects identification to the signal of control signal I/O end input, when if detection recognizes the infrared remote-controlled signal after the amplification demodulation, control signal I/O end is set to high-impedance state by input state; When control signal I/O holds in output state, if now built-in MCU receives the panel button instruction, the panel button instruction after control signal I/O end output encoder.
Further, have two module integrations at least in a chip in described photosensitive module, preposition amplification processing module and built-in MCU.
Further, described photosensitive module, preposition amplification processing module and built-in MCU are packaged together.
Further, described infrared receiving terminal is provided with one or more LED state pilot lamp links, and described built-in M C U connects described each LED state pilot lamp link.
Further, described built-in MCU is detected control signal I/O end under the control of programming instruction, and the input that control signal I/O is held, output state carries out timesharing control: when control signal I/O holds in input state, infrared remote-controlled signal after the amplification demodulation that built-in MCU is inputted control signal I/O end is detected, identification, while if infrared remote-controlled signal being detected, built-in MCU is identified this signal, judge whether demand motive LED state pilot lamp, when demand motive LED state pilot lamp, built-in MCU is exported the control signal of each LED state pilot lamp.
When control signal I/O end during in output state, if now described built-in MCU receives the panel button instruction, after built-in MCU sets, if during demand motive LED state pilot lamp, built-in MCU is exported the control signal of each LED state pilot lamp.
Further, described infrared receiving terminal comprises an input/output end port, and described infrared remote-controlled signal output terminal and control signal I/O end are connected to described input/output end port jointly.
Further, described infrared receiving terminal comprises the first input/output end port and the second input/output end port, described infrared remote-controlled signal output terminal connects described the first input/output end port, described control signal I/O end connects described the second input/output end port, and now the connected mode of the control signal I/O of the infrared remote-controlled signal output terminal of described preposition amplification processing module and built-in MCU end is that outside by the first input/output end port and the second input/output end port links together.
The second purpose of the present invention is to provide a kind of control panel, and it comprises the described infrared receiving terminal of above-mentioned any one and panel button, and described infrared receiving terminal connects panel button by the panel button link.
Further, described control panel is provided with one or more LED state pilot lamp, and each LED state pilot lamp connects LED state pilot lamp link separately.
The 3rd purpose of the present invention is to provide a kind of receiving trap of infrared remote control system, comprise control panel and master control borad, it comprises the described infrared receiving terminal of above-mentioned any one and panel button described control panel, described infrared receiving terminal connects panel button by the panel button link, and the infrared receiving terminal of described control panel connects the main control MCU of master control borad.
Further, described control panel is provided with one or more LED state pilot lamp, and each LED state pilot lamp connects LED state pilot lamp link separately.
The 4th purpose of the present invention is to provide a kind of infrared receiving terminal, comprises photosensitive module, preposition amplification processing module and built-in MCU, is provided with programming end, panel button link, and described photosensitive module, preposition amplification processing module and built-in MCU are packaged together.Wherein
Photosensitive module is carried out opto-electronic conversion and the infrared remote-controlled signal after conversion is inputted to preposition amplification processing module for receiving infrared remote-controlled signal.
Preposition amplification processing module is for being amplified the infrared remote-controlled signal after demodulation is amplified in output after demodulation to infrared remote-controlled signal, preposition amplification processing module is provided with the infrared remote-controlled signal output terminal.
Built-in MCU connects the programming end of infrared receiving terminal, receives programming instruction and is encoded; Built-in MCU connects the panel button link of infrared receiving terminal, receives the panel key command and is encoded, the panel button instruction after output encoder; Built-in MCU is provided with control signal I/O end.
The infrared remote-controlled signal output terminal of described preposition amplification processing module and the control signal I/O of built-in MCU end link together.
Further, described built-in MCU is detected control signal I/O end under the control of programming instruction, and input, the output state of control signal I/O end carried out to timesharing control: when control signal I/O holds in input state, built-in MCU detects identification to the signal of control signal I/O end input, when if detection recognizes the infrared remote-controlled signal after the amplification demodulation, control signal I/O end is set to high-impedance state by input state; When control signal I/O holds in output state, if now built-in MCU receives the panel button instruction, the panel button instruction after control signal I/O end output encoder.
Further, have two module integrations at least in a chip in described photosensitive module, preposition amplification processing module and built-in MCU.
Further, described infrared receiving terminal is provided with one or more LED state pilot lamp links, and described built-in MCU connects described each LED state pilot lamp link.
Further, described built-in MCU is detected control signal I/O end under the control of programming instruction, and the input that control signal I/O is held, output state carries out timesharing control: when control signal I/O holds in input state, infrared remote-controlled signal after the amplification demodulation that built-in MCU is inputted control signal I/O end is detected, identification, while if infrared remote-controlled signal being detected, built-in MCU is identified this signal, judge whether demand motive LED state pilot lamp, when demand motive LED state pilot lamp, built-in MCU is exported the control signal of each LED state pilot lamp.
When control signal I/O end during in output state, if now described built-in MCU receives the panel button instruction, after built-in MCU sets, if during demand motive LED state pilot lamp, built-in MCU is exported the control signal of each LED state pilot lamp.
Further, described infrared receiving terminal comprises an input/output end port, and described infrared remote-controlled signal output terminal and control signal I/O end are connected to described input/output end port jointly.
Further, described infrared receiving terminal comprises the first input/output end port and the second input/output end port, described infrared remote-controlled signal output terminal connects described the first input/output end port, described control signal I/O end connects described the second input/output end port, and now the connected mode of the control signal I/O of the infrared remote-controlled signal output terminal of described preposition amplification processing module and built-in MCU end is that outside by the first input/output end port and the second input/output end port links together.
The present invention's beneficial effect compared with prior art:
1, by built-in MCU, the control unification of the operation of the reception of infrared remote-controlled signal, panel button and LED state pilot lamp is processed in infrared receiving terminal, and the main control MCU that the infrared remote-controlled signal after processing or panel button instruction is offered to master control borad by infrared receiving terminal.
2, the connector reduced between control panel and master control borad is connected with electric wire, has improved the stability of control panel and whole infrared remote control control system.
3, the input of panel button instruction and infrared remote-controlled signal only takies the I/O port of main control MCU in master control borad, and LED state pilot lamp signal does not take the I/O port of main control MCU, has saved the port resource of main control MCU.
The accompanying drawing explanation
The annexation schematic diagram that Fig. 1 is a kind of master control borad and infrared remote-controlled signal in prior art, panel button instruction;
The annexation schematic diagram that Fig. 2 is a kind of control panel and master control borad in prior art, take general television set as example;
Control panel and master control borad annexation schematic diagram in the embodiment that Fig. 3 is receiving trap of the present invention;
Two kinds of way of outputs that Fig. 4 a and 4b are infrared receiving terminal in the present invention and connection diagram;
The packaging appearance schematic diagram that Fig. 5 a, 5b are infrared receiving terminal embodiment in the present invention, Fig. 5 c, 5d are the profile schematic diagram of two kinds of output ports in the infrared receiving terminal packaging appearance in the present invention, and 5e, 5f have the encapsulation schematic diagram of the above module integration of two parts in same chip in inner three part of module of infrared receiving terminal in the present invention;
The control signal I/O end structure schematic diagram of built-in MCU in the embodiment that Fig. 6 is infrared receiving terminal in the present invention;
The infrared remote-controlled signal output end structure schematic diagram of preposition amplification processing module in the embodiment that Fig. 7 is infrared receiving terminal in the present invention;
Fig. 8 is the panel button instruction schematic diagram of pressing the output of panel button " volume+" rear control plate in the present invention in control panel embodiment.
Embodiment
A kind of receiving trap of infrared remote control system.Comprise control panel and master control borad.The connection diagram of master control borad and control panel as shown in Figure 3.The infrared receiving terminal of control panel connects the main control MCU of master control borad.
Control panel comprises infrared receiving terminal and panel button, also can comprise one or more LED state pilot lamp.Take general television set as example, panel button can be volume+, volume-, channel+, channel-, function and start standby etc.But LED state pilot lamp indication TV machine is in open state or holding state.Infrared receiving terminal comprises photosensitive module, preposition amplification processing module and built-in MCU.Be provided with programming end P1, P2, P3, panel button link P4, P5, P6, P7, P8.The panel button link is connected with panel button.Infrared receiving terminal also has one or more LED state pilot lamp links.Each LED state pilot lamp link connects LED state pilot lamp separately.Wherein photosensitive module, preposition amplification processing module and built-in MCU are packaged together.Photosensitive module is carried out opto-electronic conversion and the infrared remote-controlled signal after conversion is inputted to preposition amplification processing module for receiving infrared remote-controlled signal.Preposition amplification processing module is for being amplified the infrared remote-controlled signal after demodulation is amplified in output after demodulation to infrared remote-controlled signal.Preposition amplification processing module is provided with the infrared remote-controlled signal output terminal.Built-in MCU connects the programming end of infrared receiving terminal, receives programming instruction and is encoded; Built-in MCU connects the panel button link of infrared receiving terminal, receives the panel key command and is encoded, the panel button instruction after output encoder; Built-in MCU is provided with control signal I/O end.The infrared remote-controlled signal output terminal of described preposition amplification processing module and the control signal I/O of built-in MCU end link together.
The built-in MCU of the infrared receiving terminal of the control panel in receiving trap is detected control signal I/O end under the control of programming instruction, and input, the output state of control signal I/O end carried out to timesharing control: when control signal I/O holds in input state, built-in MCU detects identification to the signal of control signal I/O end input, when if detection recognizes the infrared remote-controlled signal after the amplification demodulation, control signal I/O end is set to high-impedance state by input state.When control signal I/O holds in output state, if now built-in MCU receives the panel button instruction, the panel button instruction after control signal I/O end output encoder.
The built-in MCU of the infrared receiving terminal of the control panel in receiving trap is detected control signal I/O end under the control of programming instruction, and the input that control signal I/O is held, output state carries out timesharing control: when control signal I/O holds in input state, infrared remote-controlled signal after the amplification demodulation that built-in MCU is inputted control signal I/O end is detected, identification, while if infrared remote-controlled signal being detected, built-in MCU is identified this signal, judge whether demand motive LED state pilot lamp, when demand motive LED state pilot lamp, built-in MCU is exported the control signal of each LED state pilot lamp, when control signal I/O end during in output state, if now described built-in MCU receives the panel button instruction, after built-in MCU sets, if during demand motive LED state pilot lamp, built-in MCU is exported the control signal of each LED state pilot lamp.
Shown in two kinds of way of outputs and connection diagram 4a and 4b of infrared receiving terminal.The input/output end port of infrared receiving terminal is an input/output end port OUT end, and as shown in Fig. 4 a, infrared remote-controlled signal output terminal and control signal I/O end are connected to described input/output end port OUT end jointly.
The input/output end port of infrared receiving terminal comprises the first input/output end port OUT1 end and the second input/output end port OUT2 end, as shown in Figure 4 b, described infrared remote-controlled signal output terminal connects described the first input/output end port OUT1 end, and described control signal I/O end connects described the second input/output end port OUT2 end.The connected mode of the infrared remote-controlled signal output terminal of described preposition amplification processing module and the control signal I/O of built-in MCU end is that the outside by the first input/output end port and the second input/output end port links together.
Built-in MCU, photosensitive module and preposition amplification processing module are packaged into to infrared receiving terminal.Encapsulating material is selected the encapsulating material that can see through infrared light.Infrared receiving terminal profile schematic diagram after encapsulation is as shown in Fig. 5 a, 5b, 5c, 5d, 5e and 5f, and contour structures is not limited only to this several structures.In Fig. 5 a, 5b, 5c, 5d, 5e and 5f, the infrared receiving terminal of the present embodiment comprises photosensitive module 1, preposition amplification processing module 2 and built-in MCU 3.The photosensitive module 1 of Fig. 5 a, 5b, 5c, 5d, preposition amplification processing module 2 and built-in MCU 3 are connected with outer pin 5 by connection wire 4, after last infrared receiving terminal encapsulation, form a plastic-sealed body 6.Fig. 5 b, 5c show that the infrared receiving terminal input/output end port after encapsulation is an input/output end port OUT end, Fig. 5 d shows that the infrared receiving terminal input/output end port after encapsulation is two output ports, is respectively the first input/output end port OUT1 end and the second input/output end port OUT2 end.Fig. 5 e and 5f are that inner three functional modules have plural functional module to be integrated in the encapsulation schematic diagram on same chip, Fig. 5 e is that preposition amplification processing module 2 and 3 two functional modules of built-in MCU are integrated in the encapsulation schematic diagram on same chip, Fig. 5 f is that photosensitive module 1, preposition amplification processing module 2 and 3,3 functional modules of built-in MCU all are integrated in the encapsulation schematic diagram on same chip.
Particularly, the control signal I/O end structure schematic diagram of built-in MCU as shown in Figure 6, this control signal I/O end can be according to pre-set programs, control 5 metal-oxide-semiconductor M1, M2, M3, M4, the duty of M5, according to pre-set programs, the way of output of control signal I/O end is set to recommend the way of output, weak driver output mode or the TR way of output, wherein the TR way of output is metal-oxide-semiconductor M1, M2, M3, M4 is set to closed condition, carry out the panel button instruction after output encoder with metal-oxide-semiconductor M5, wherein recommending the way of output is metal-oxide-semiconductor M1, M2, M5 is set to closed condition, carry out the panel button instruction after output encoder with metal-oxide-semiconductor M3 and M4, wherein weak driver output mode is metal-oxide-semiconductor M3, M4, M5 is set to closed condition, carry out the panel button instruction after output encoder with metal-oxide-semiconductor M1 and M2.The TR input mode of below take describes as example: when there is no the panel button instruction, metal-oxide-semiconductor M5 is in closed condition, because the leakage current of metal-oxide-semiconductor M5 is minimum, its input impedance is more than 100M Ω, and control signal I/O end is connecting a Schmidt trigger A, and its input impedance is also more than 100M Ω, therefore, when there is no the panel button instruction, the input impedance of built-in MCU is very big, and built-in MCU is in high-impedance state.
The control signal I/O end output slab key command working method of built-in MCU is: the panel button instruction is after built-in MCU is processed, compiling becomes the data of the code of " 0 " and " 1 " combination, when output code is " 0 ", metal-oxide-semiconductor M5 conducting, control signal I/O end is by metal-oxide-semiconductor M5 ground connection, output code " 0 ".When output code is " 1 ", metal-oxide-semiconductor M5 cut-off, because built-in MCU is connected with preposition amplification processing module, the infrared remote-controlled signal output terminal of preposition amplification processing module has a pull-up resistor R, as shown in Figure 7, this pull-up resistor R also can become the pull-up resistor of built-in MCU control signal I/O end, and by drawing on this pull-up resistor, control signal I/O holds output code " 1 ".Preposition amplification processing module is controlled the output of infrared remote-controlled signal by a triode T and pull-up resistor R.After triode T conducting, infrared remote-controlled signal output terminal output low level, be output as the code of " 0 ".After triode T cut-off, the infrared remote-controlled signal output terminal, by pull-up resistor R output high level, is output as the code of " 1 ".When panel button instruction output is only arranged, the pull-up resistor that the pull-up resistor R of preposition amplification processing module can be considered the control signal I/O end of built-in MCU is used, and the triode T of preposition amplification processing module is in cut-off state, its leakage current is also less, can regard a less load of built-in MCU as, load current, below 100uA, does not affect built-in MCU output slab key command.
Applicating example: take general television set as example, the infrared remote control control system comprises emitter and receiving trap, and emitter is infrared transmitter, telepilot namely, and telepilot comprises remote controller key, coding circuit and radiating circuit.Receiving trap comprises control panel and master control borad.Master control borad comprises main control MCU and control module.Control panel comprises infrared receiving terminal, panel button and LED state pilot lamp.The panel button instruction comprise volume+, volume-, channel+, channel-, function and start standby etc.Infrared receiving terminal comprises photosensor chip, preposition amplification chip and built-in MCU.Photosensor chip in panel button in control panel, LED state pilot lamp and infrared receiving terminal is installed on the televisor front surface usually, for the infrared remote-controlled signal that receives telepilot, carry out the functions of television set adjusting and the televisor state shows.For easy to use, the counter plate key command is encoded and infrared remote-controlled signal carries out demodulation, and the panel button instruction after the coding that makes master control borad receive is identical with the infrared remote-controlled signal coded system after demodulation.Select suitable built-in MCU by panel button quantity and the mode input signal of considering general television set, and be encapsulated as infrared receiving terminal with preposition amplification chip together with photosensor chip or wherein two or more Functional Designs is encapsulated on same chip.
The built-in MCU of the infrared receiving terminal of control panel is detected control signal I/O end under the control of programming instruction, and input, the output state of control signal I/O end carried out to timesharing control:
Example one (take general television set as example):
By infrared receiving terminal, control button (comprising: volume+, volume-, channel+, channel-, the six press keys such as function selections, start/standby), two LED state pilot lamp (indicate and start shooting or standby respectively) are arranged in the same control panel, the button link of wherein controlling button and infrared receiving terminal is connected, the LED state of LED light and infrared receiving terminal drives the lamp link to be connected, and the output terminal of infrared receiving terminal is connected with the main control MCU of master control borad.Control panel only has a signal wire to be connected with master control borad.
Example two (take general television set as example)
When control signal I/O holds in input state, built-in MCU detects identification to the signal of control signal I/O end input, when detection recognizes the infrared remote-controlled signal after the amplification demodulation, built-in MCU is identified this signal, judge whether demand motive LED state pilot lamp, when demand motive LED state pilot lamp not, control signal I/O end is set to high-impedance state by input state.The infrared remote-controlled signal after demodulation is amplified in infrared receiving terminal output.
Example three (take general television set as example):
When control signal I/O holds in output state, if now the user presses the panel button on televisor, for example, while pressing panel button " volume+", in the electric wire input built-in MCU that the panel button link of this panel button instruction by the built-in MCU with infrared receiving terminal is connected, after built-in MCU sets, if not during demand motive LED state pilot lamp, built-in MCU receives the panel button instruction, according to pre-set programs counter plate key command, encoded, because the built-in MCU pre-set programs is set to: when panel button " volume+" while pressing, this panel button instruction is transferred to built-in MCU as switching signal, built-in MCU detects this switching signal, in the control signal I/O of built-in MCU end output a string panel button instruction as shown in Figure 8.In the main control MCU of the panel button instruction input master control borad after the control signal I/O end output encoder of built-in MCU.Main control MCU, according to the control program of finishing in advance, is controlled " volume+" relevant control unit, realizes volume+function.
Example four (take general television set as example):
When control signal I/O holds in input state, built-in MCU detects identification to the remote signal of control signal I/O end input, if detection recognizes the infrared remote-controlled signal after the amplification demodulation, and set through built-in MCU, during demand motive LED state pilot lamp, built-in MCU is controlled the output signal of each LED state pilot lamp link.Built-in MCU judges that according to the information of pre-set programs and internal reservoir televisor is in open state or holding state.As in holding state, built-in MCU can be input to start-up command in the LED state pilot lamp that is expressed as start by LED state pilot lamp link according to pre-set programs, and the driving LED status indicator lamp is luminous, simultaneously by the information storage of start in built-in MCU.As televisor in open state, built-in MCU can be input in the LED state pilot lamp that is expressed as standby by standby command according to pre-set programs by LED state pilot lamp link, the driving LED status indicator lamp is luminous, simultaneously by the information storage of standby in built-in MCU.
Example five (take general television set as example):
When control signal I/O holds in output state, if now the user presses the panel button of televisor, described built-in MCU receives the panel button instruction, and this panel button instruction sets through built-in MCU, during demand motive LED state pilot lamp, built-in MCU is controlled the output signal of each LED state pilot lamp link.Built-in MCU judges that according to the information of pre-set programs and internal reservoir televisor is in open state or holding state.As in holding state, built-in MCU can be input to start-up command in the LED state pilot lamp that is expressed as start by LED state pilot lamp link according to pre-set programs, and the driving LED status indicator lamp is luminous, simultaneously by the information storage of start in built-in MCU.As televisor in open state, built-in MCU can be input in the LED state pilot lamp that is expressed as standby by standby command according to pre-set programs by LED state pilot lamp link, the driving LED status indicator lamp is luminous, simultaneously by the information storage of standby in built-in MCU.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; any innovation and creation, modification that is no more than connotation scope of the present invention, all fall into protection scope of the present invention.
Claims (17)
1. an infrared receiving terminal, is characterized in that: comprise photosensitive module, preposition amplification processing module and built-in MCU (Micro Control Unit, microcontroller), be provided with programming end, panel button link, wherein
Photosensitive module is carried out opto-electronic conversion and the infrared remote-controlled signal after conversion is inputted to preposition amplification processing module for receiving infrared remote-controlled signal;
Preposition amplification processing module is for being amplified the infrared remote-controlled signal after demodulation is amplified in output after demodulation to infrared remote-controlled signal, preposition amplification processing module is provided with the infrared remote-controlled signal output terminal;
Built-in MCU connects the programming end of infrared receiving terminal, receives programming instruction and is encoded; Built-in MCU connects the panel button link of infrared receiving terminal, receives the panel key command and is encoded, the panel button instruction after output encoder; Built-in MCU is provided with control signal I/O end;
The infrared remote-controlled signal output terminal of described preposition amplification processing module and the control signal I/O of built-in MCU end link together;
Described built-in MCU is detected control signal I/O end under the control of programming instruction, and input, the output state of control signal I/O end carried out to timesharing control: when control signal I/O holds in input state, built-in MCU detects identification to the signal of control signal I/O end input, when if detection recognizes the infrared remote-controlled signal after the amplification demodulation, control signal I/O end is set to high-impedance state by input state; When control signal I/O holds in output state, if now built-in MCU receives the panel button instruction, the panel button instruction after control signal I/O end output encoder.
2. infrared receiving terminal according to claim 1, is characterized in that in described photosensitive module, preposition amplification processing module and built-in MCU having two module integrations at least in a chip.
3. infrared receiving terminal according to claim 1, is characterized in that described photosensitive module, preposition amplification processing module and built-in MCU are packaged together.
4. infrared receiving terminal according to claim 1, it is characterized in that: described infrared receiving terminal is provided with one or more LED state pilot lamp links, and described built-in MCU connects described one or more LED state pilot lamp links.
5. infrared receiving terminal according to claim 4, it is characterized in that: described built-in MCU is detected control signal I/O end under the control of programming instruction, and the input that control signal I/O is held, output state carries out timesharing control: when control signal I/O holds in input state, infrared remote-controlled signal after the amplification demodulation that built-in MCU is inputted control signal I/O end is detected, identification, while if infrared remote-controlled signal being detected, built-in MCU is identified this signal, judge whether demand motive LED state pilot lamp, when demand motive LED state pilot lamp, built-in MCU is exported the control signal of each LED state pilot lamp,
When control signal I/O end during in output state, if now described built-in MCU receives the panel button instruction, after built-in MCU identification, if during demand motive LED state pilot lamp, built-in MCU is exported the control signal of each LED state pilot lamp.
6. infrared receiving terminal according to claim 1, it is characterized in that: described infrared receiving terminal comprises an input/output end port, described infrared remote-controlled signal output terminal and control signal I/O end are connected to described input/output end port jointly.
7. infrared receiving terminal according to claim 1, it is characterized in that: described infrared receiving terminal comprises the first input/output end port and the second input/output end port, described infrared remote-controlled signal output terminal connects described the first input/output end port, described control signal I/O end connects described the second input/output end port, and now the connected mode of the control signal I/O of the infrared remote-controlled signal output terminal of described preposition amplification processing module and built-in MCU end is that outside by the first input/output end port and the second input/output end port links together.
8. a control panel is characterized in that: comprise infrared receiving terminal as described as claim 1 to 7 any one and panel button, described infrared receiving terminal connects panel button by the panel button link.
9. control panel according to claim 8, it is characterized in that: described control panel is provided with one or more LED state pilot lamp, and each LED state pilot lamp connects LED state pilot lamp link separately.
10. the receiving trap of an infrared remote control system, it is characterized in that: comprise control panel and master control borad, described control panel comprises infrared receiving terminal as described as claim 1 to 7 any one and panel button, described infrared receiving terminal connects panel button by the panel button link, and the infrared receiving terminal of described control panel connects the main control MCU of master control borad.
11. receiving trap according to claim 10 is characterized in that: described control panel is provided with one or more LED state pilot lamp, and each LED state pilot lamp connects LED state pilot lamp link separately.
12. an infrared receiving terminal is characterized in that: comprise photosensitive module, preposition amplification processing module and built-in MCU, be provided with programming end, panel button link, described photosensitive module, preposition amplification processing module and built-in MCU are packaged together, wherein
Photosensitive module is carried out opto-electronic conversion and the infrared remote-controlled signal after conversion is inputted to preposition amplification processing module for receiving infrared remote-controlled signal;
Preposition amplification processing module is for being amplified the infrared remote-controlled signal after demodulation is amplified in output after demodulation to infrared remote-controlled signal, preposition amplification processing module is provided with the infrared remote-controlled signal output terminal;
Built-in MCU connects the programming end of infrared receiving terminal, receives programming instruction and is encoded; Built-in MCU connects the panel button link of infrared receiving terminal, receives the panel key command and is encoded, the panel button instruction after output encoder; Built-in MCU is provided with control signal I/O end;
The infrared remote-controlled signal output terminal of described preposition amplification processing module and the control signal I/O of built-in MCU end link together;
Described built-in MCU is detected control signal I/O end under the control of programming instruction, and input, the output state of control signal I/O end carried out to timesharing control: when control signal I/O holds in input state, built-in MCU detects identification to the signal of control signal I/O end input, when if detection recognizes the infrared remote-controlled signal after the amplification demodulation, control signal I/O end is set to high-impedance state by input state; When control signal I/O holds in output state, if now built-in MCU receives the panel button instruction, the panel button instruction after control signal I/O end output encoder.
13., according to the described infrared receiving terminal of claim 12, it is characterized in that in described photosensitive module, preposition amplification processing module and built-in MCU having two module integrations at least in a chip.
14. infrared receiving terminal according to claim 12 is characterized in that: described infrared receiving terminal also comprises one or more LED state pilot lamp links, and described built-in MCU connects described one or more LED state pilot lamp links.
15. infrared receiving terminal according to claim 14, it is characterized in that: described built-in MCU is detected control signal I/O end under the control of programming instruction, and the input that control signal I/O is held, output state carries out timesharing control: when control signal I/O holds in input state, infrared remote-controlled signal after the amplification demodulation that built-in MCU is inputted control signal I/O end is detected, identification, while if infrared remote-controlled signal being detected, built-in MCU is identified this signal, judge whether demand motive LED state pilot lamp, when demand motive LED state pilot lamp, built-in MCU is exported the control signal of each LED state pilot lamp,
When control signal I/O end during in output state, if now described built-in MCU receives the panel button instruction, after built-in MCU identification, if during demand motive LED state pilot lamp, built-in MCU is exported the control signal of each LED state pilot lamp.
16. infrared receiving terminal according to claim 12 is characterized in that: described infrared receiving terminal comprises an input/output end port, and described infrared remote-controlled signal output terminal and control signal I/O end are connected to described input/output end port jointly.
17. infrared receiving terminal according to claim 12, it is characterized in that: described infrared receiving terminal comprises the first input/output end port and the second input/output end port, described infrared remote-controlled signal output terminal connects described the first input/output end port, described control signal I/O end connects described the second input/output end port, and now the connected mode of the control signal I/O of the infrared remote-controlled signal output terminal of described preposition amplification processing module and built-in MCU end is that outside by the first input/output end port and the second input/output end port links together.
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| CN201110460944.3A CN102436736B (en) | 2011-12-31 | 2011-12-31 | Infrared receiving head and control board containing same as well as receiving device of infrared remote control system |
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| CN201110460944.3A CN102436736B (en) | 2011-12-31 | 2011-12-31 | Infrared receiving head and control board containing same as well as receiving device of infrared remote control system |
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| CN102436736B true CN102436736B (en) | 2014-01-08 |
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| CN202486967U (en) * | 2011-12-31 | 2012-10-10 | 杭州士兰光电技术有限公司 | Infrared receiving head, control panel containing infrared receiving head, and receiving device of infrared remote control system |
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| CN1111683C (en) * | 1998-12-04 | 2003-06-18 | 广东科龙空调器有限公司 | Air conditioner control system |
| JP2003047071A (en) * | 2001-07-27 | 2003-02-14 | Nec Corp | Infrared ray remote control system |
| CN100435176C (en) * | 2006-03-24 | 2008-11-19 | 四川长虹电器股份有限公司 | Remote signal converting system and method thereof |
| CN101211505A (en) * | 2006-12-31 | 2008-07-02 | 深圳市同洲电子股份有限公司 | Remote controller with study function and its learning and test method |
| CN101751771B (en) * | 2008-12-09 | 2012-09-05 | 联想(北京)有限公司 | Infrared control device and method |
| CN201449662U (en) * | 2009-05-27 | 2010-05-05 | 深圳市深华龙科技实业有限公司 | Multifunctional infrared remote-switch device |
| CN102236963A (en) * | 2010-04-30 | 2011-11-09 | 盛玉林 | Remote control equipment of voice control appliance |
| CN201823296U (en) * | 2010-08-31 | 2011-05-11 | 深圳市英利普数码科技有限公司 | Handheld game machine |
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