CN203345004U - Infrared key signal receiving and transmitting device of steering wheel - Google Patents

Infrared key signal receiving and transmitting device of steering wheel Download PDF

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Publication number
CN203345004U
CN203345004U CN2013202026045U CN201320202604U CN203345004U CN 203345004 U CN203345004 U CN 203345004U CN 2013202026045 U CN2013202026045 U CN 2013202026045U CN 201320202604 U CN201320202604 U CN 201320202604U CN 203345004 U CN203345004 U CN 203345004U
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China
Prior art keywords
module
infrared
microcontroller
signal
bearing circle
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Expired - Fee Related
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CN2013202026045U
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Chinese (zh)
Inventor
李长偲
朱海龙
陈蜀乔
赵成俊
杨飞
刘春�
吴伟
刘雅琪
殷悦
杨杰
甫世红
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Kunming University of Science and Technology
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Kunming University of Science and Technology
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Priority to CN2013202026045U priority Critical patent/CN203345004U/en
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Publication of CN203345004U publication Critical patent/CN203345004U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model relates to an infrared key signal receiving and transmitting device of a steering wheel, and belongs to the technical field of automobile accessories. The device comprises a transmitting part and a receiving part, wherein the transmitting part is used for transmitting a steering wheel infrared key signal, and the receiving part is used for receiving the steering wheel infrared key signal transmitted by the transmitting part and finishing execution of corresponding functions. The transmitting part comprises a key module, a coding modulation module and a signal transmitting module. The receiving part comprises an infrared receiving module, a coding processing module, a reset module, a timing sequence module, a warning module and a function execution module. Auxiliary equipment in and out of an automobile and the function control end are integrated on the steering wheel, distraction of a driver is avoided when the driver controls the equipment on a center console, and driving safety is improved. Due to the fact that infrared rays are used for transmitting and controlling the signal, the trouble of connection is reduced. A micro controller is adopted for recognition, so that confidentiality is strong, coding is accurate and fast, program can be wiped, one-key reset is achieved, the appearance is attractive, and updating and maintenance are convenient.

Description

A kind of bearing circle push button signalling infrared transceiver device
Technical field
The utility model relates to a kind of bearing circle push button signalling infrared transceiver device, belongs to the vehicular spare parts technical field.
Background technology
At present, automobile has entered ten million, and on car, the electron steering of some equipment provides great convenience to the mankind.As the control in vehicle window and skylight, air-conditioning, the functions such as MP3 player.But, the control end of these equipment is not often the driver in scope within reach, as vehicle window just on car door, air-conditioning and MP3 player are just on the console between driver and copilot, with regard to making the driver operate these functions when driving, not easily like this, and the hidden trouble of traffic of easily diverting one's attention to produce.Although some multi-functional steering wheels have added by the key control function, that or traditional wired installation around line one by one, as signal transmission use, can seem so in a mess and maintenance is inconvenient under bearing circle.If existing keypress function on bearing circle, can break away from wired limitation again, so not only can in the situation that not the departure direction dish control other equipment, avoid diverting attention, more attractive in appearance and easy to maintenance.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of bearing circle push button signalling infrared transceiver device.Key board is housed on bearing circle, after button is pressed, can sends specific remote control mode, through infrared transmitting tube, launch by the infrared signal Receiver and receive, through microcontroller, decode and control the Execution driven circuit and control corresponding equipment.
The technical solution of the utility model is: a kind of bearing circle push button signalling infrared transceiver device comprises for the radiating portion of downrange dish button infrared signal with for the bearing circle button infrared signal that receives the radiating portion emission the receiving unit that completes the execution of its corresponding function;
Described radiating portion comprises:
-key-press module 1, for Trig control signal;
-code modulation module 2, for coding and the modulation of signal;
-signal emission module 3, launch for the code signal by modulating;
Described receiving unit comprises:
-infrared receiver module 6, the code signal emitted for receiving signal emission module 3;
-coding processing module 5, the code signal received for resolving infrared receiver module 6;
-reseting module, for system reset;
-tfi module, for providing the sequential of microcontroller normal operation;
-alarm module 7, make mistakes or warning during malicious interference for system;
-function execution module 8, for carrying out the function of key-press module 1 correspondence.
Described key-press module 1 is arranged on bearing circle 9, code modulation module 2 is at key-press module 1 time coupled, signal emission module 3 be arranged on bearing circle 9 times, with code modulation module 2, be connected, and light-emitting diode D1 upwards, infrared emission tube 4 all exposes downwards.
Described receiving unit is arranged on the bearing circle post tips, the integrated infrared receiving terminal RX1 in infrared receiver module 6 be arranged on that outermost end is all exposed and and signal emission module 3 in infrared emission tube 4 between clear block.
Described code modulation module 2 is equipped with microcontroller, and the RST pin is connected with reseting module, and X1, X2 pin are connected with tfi module, and P1 port and key-press module 1 directly are electrically connected.
Described signal emission module 3 comprises light-emitting diode D1, aerotron Q1, infrared emission tube 4, resistance R 1, resistance R 2, capacitor C 1; Resistance R 1 is connected with diode D1, resistance R 2 is connected with aerotron Q1, and the aerotron Q1C utmost point is connected with infrared ray D2 power valve, the E utmost point is connected with R2, the B utmost point is connected with microcontroller P2.1, and diode D1 is connected with the vacant P2.0 pin of microcontroller.
Described infrared receiver module 6 comprises integrated infrared receiving terminal RX1, and its first pin is connected with microcontroller is outside, and the second pin is connected with GND, and the 3rd pin is connected with VCC.
Described coding processing module 5 is equipped with microcontroller, and the RST pin is connected with reseting module, and X1, X2 pin are connected with tfi module, infrared receiver module 6, function execution module 8, alarm module 7.
Described reseting module comprises switch S 1, resistance R 3, resistance R 4, capacitor C 2, switch S 1 one ends are last and microcontroller reset pin RST electrical connection in parallel with capacitor C 2 after first connecting with resistance R 3, the other end is connected with system VCC, resistance R 4 one ends are connected with the microcontroller reset pin, and the other end is connected with system GND.
Described tfi module comprises crystal oscillator Y1, capacitor C 3, capacitor C 4, and capacitor C 3, capacitor C 4 one ends are connected with microcontroller X1, X2 pin by the bipod of crystal oscillator Y1, and the other end altogether.
Described alarm module 7 comprises resistance R 5, buzzer phone FM, light-emitting diode D3, aerotron Q2, and the aerotron Q2B utmost point is connected with microcontroller P2.3 by resistance R 5, C utmost point ground connection, and the E utmost point is connected with buzzer phone FM.
Principle of work of the present utility model is: code modulation module 2 is equipped with microcontroller, with reseting module, be connected for system reset, with tfi module, be connected, for the sequential of microcontroller normal operation is provided, directly be electrically connected with key-press module 1, utilize programming control scanning key-press module 1, push button signalling is encoded and modulate, with signal emission module 3 electrical connections, the signal modulated is launched through signal emission module 3; Signal emission module 3 comprises light-emitting diode D1, aerotron Q1, infrared emission tube 4, resistance R 1, resistance R 2, capacitor C 1.Resistance R 1 is connected for current limliting with aerotron Q1 with diode D1, resistance R 2, aerotron Q1 is connected for the signal amplification with infrared ray D2 power valve, the aerotron Q1C utmost point is connected with infrared ray D2 power valve, the E utmost point is connected with R2, the B utmost point is connected with microcontroller P2.1, diode D1 is connected with the vacant P2.0 pin of microcontroller, and diode D1 is connected with modulation circuit for the successful launch feedback; Infrared receiver module 6 comprises integrated infrared receiving terminal RX1, and its first pin is connected with microcontroller is outside, and the second pin is connected with GND, and the 3rd pin is connected with VCC; Coding processing module 5 is equipped with microcontroller, with reseting module, be connected for system reset, with tfi module, be connected, for the sequential of microcontroller normal operation is provided, with infrared receiver module 6, for by infrared signal parsing, verification, executable operations, with function execution module 8, be connected, for carrying out the corresponding function of button on key-press module 1, with alarm module 7, be connected for reporting to the police; Reseting module comprises switch S 1, resistance R 3, resistance R 4, capacitor C 2, switch S 1 one ends are last and microcontroller reset pin RST electrical connection in parallel with capacitor C 2 after first connecting with resistance R 3, the other end is connected with system VCC for providing high level to reset, resistance R 4 one ends are connected with the microcontroller reset pin, the other end is connected with system GND, for the recovery after restoration low level; Tfi module comprises crystal oscillator Y1, capacitor C 3, capacitor C 4, and capacitor C 3, capacitor C 4 one ends are connected with microcontroller X1, X2 pin by the bipod of crystal oscillator Y1, and the other end altogether, adopts outside concussion mode to provide the system sequence of work for microcontroller; Alarm module 7 comprises resistance R 5, buzzer phone FM, light-emitting diode D3, aerotron Q2, the aerotron Q2B utmost point is connected with microcontroller P2.3 by resistance R 5, C utmost point ground connection, the E utmost point is connected with buzzer phone FM, when vicious infrared signal sends or have the people to use the decoding remote controller maliciously to crack the utility model, buzzer phone will give the alarm under the control of program; Function execution module 8 comprises the control circuit of some functions, with other vacant pins of microcontroller, is connected, and after correct infrared remote control signal is resolved out, under system program is controlled, corresponding function will be performed.
The beneficial effects of the utility model are: the control end of some accessory equipments inside and outside car and function is concentrated on bearing circle, avoid chaufeur to divert one's attention because of control convenience on console, improve travel safety; Adopt the infrared transmission control signal, reduce the trouble of line; The identification of employing microcontroller, strong security, accurately, fast, program is erasable in decoding, can reset by a key, appearance looks elegant, upgrading, easy to maintenance.
The accompanying drawing explanation
Fig. 1 is the utility model structural scheme of mechanism
Fig. 2 is the system chart of the utility model radiating portion
Fig. 3 is the system chart of the utility model receiving unit
Fig. 4 is the utility model key-press module schematic diagram
Fig. 5 is the utility model code modulation module module frame chart
Fig. 6 is the utility model signal emission module schematic diagram
Fig. 7 is the utility model infrared receiver module principle figure
Fig. 8 is the utility model coding processing module module frame chart
Fig. 9 is the utility model reseting module schematic diagram
Figure 10 is the utility model tfi module schematic diagram
Figure 11 is the utility model alarm module schematic diagram
Figure 12 is the utility model function execution module module frame chart
Figure 13 is the utility model radiating portion flow chart
Figure 14 is the utility model receiving unit flow chart
In figure, each label is: 1-key-press module, 2-code modulation module, 3-signal emission module, 4-infrared emission tube, the 5-processing module of encoding, 6-infrared receiver module, 7-alarm module, 8-function execution module, 9-bearing circle, 10-bearing circle pivot shaft.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment one: as shown in the figure, a kind of bearing circle push button signalling infrared transceiver device, comprise for the radiating portion of downrange dish button infrared signal with for the bearing circle button infrared signal that receives the radiating portion emission the receiving unit that completes the execution of its corresponding function;
Described radiating portion comprises:
-key-press module 1, for Trig control signal;
-code modulation module 2, for coding and the modulation of signal;
-signal emission module 3, launch for the code signal by modulating;
Described receiving unit comprises:
-infrared receiver module 6, the code signal emitted for receiving signal emission module 3;
-coding processing module 5, the code signal received for resolving infrared receiver module 6;
-reseting module, for system reset;
-tfi module, for providing the sequential of microcontroller normal operation;
-alarm module 7, make mistakes or warning during malicious interference for system;
-function execution module 8, for carrying out the function of key-press module 1 correspondence.
Described key-press module 1 is arranged on bearing circle 9, code modulation module 2 is at key-press module 1 time coupled, signal emission module 3 be arranged on bearing circle 9 times, with code modulation module 2, be connected, and light-emitting diode D1 upwards, infrared emission tube 4 all exposes downwards.
Described receiving unit is arranged on the bearing circle post tips, the integrated infrared receiving terminal RX1 in infrared receiver module 6 be arranged on that outermost end is all exposed and and signal emission module 3 in infrared emission tube 4 between clear block.
Described code modulation module 2 is equipped with microcontroller, and the RST pin is connected with reseting module, and X1, X2 pin are connected with tfi module, and P1 port and key-press module 1 directly are electrically connected.
Described signal emission module 3 comprises light-emitting diode D1, aerotron Q1, infrared emission tube 4, resistance R 1, resistance R 2, capacitor C 1; Resistance R 1 is connected with diode D1, resistance R 2 is connected with aerotron Q1, and the aerotron Q1C utmost point is connected with infrared ray D2 power valve, the E utmost point is connected with R2, the B utmost point is connected with microcontroller P2.1, and diode D1 is connected with the vacant P2.0 pin of microcontroller.
Described infrared receiver module 6 comprises integrated infrared receiving terminal RX1, and its first pin is connected with microcontroller is outside, and the second pin is connected with GND, and the 3rd pin is connected with VCC.
Described coding processing module 5 is equipped with microcontroller, and the RST pin is connected with reseting module, and X1, X2 pin are connected with tfi module, infrared receiver module 6, function execution module 8, alarm module 7.
Described reseting module comprises switch S 1, resistance R 3, resistance R 4, capacitor C 2, switch S 1 one ends are last and microcontroller reset pin RST electrical connection in parallel with capacitor C 2 after first connecting with resistance R 3, the other end is connected with system VCC, resistance R 4 one ends are connected with the microcontroller reset pin, and the other end is connected with system GND.
Described tfi module comprises crystal oscillator Y1, capacitor C 3, capacitor C 4, and capacitor C 3, capacitor C 4 one ends are connected with microcontroller X1, X2 pin by the bipod of crystal oscillator Y1, and the other end altogether.
Described alarm module 7 comprises resistance R 5, buzzer phone FM, light-emitting diode D3, aerotron Q2, and the aerotron Q2B utmost point is connected with microcontroller P2.3 by resistance R 5, C utmost point ground connection, and the E utmost point is connected with buzzer phone FM.
Embodiment two: as shown in the figure, Fig. 2 is the system chart of the utility model for the radiating portion of bearing circle push button signalling infrared receiving/transmission.This radiating portion consists of key-press module 1, code modulation module 2 and signal emission module 3.After system powers on, code modulation module 2 can constantly refresh the level information at key-press module 1 place, on key-press module 1, a button is pressed, the level of system can be dragged down, code modulation module 2 detects system has low level to occur, while being detected by programming control, which button is pressed, and take out coding corresponding to this button in memory device internally, the carrier wave that code modulation module 2 meetings simultaneously produce 38KHz carries out remodulation to improve transmitting frequency to coding, reduce power supply power consumption, now coded modulation finishes.Coding after modulation is launched by the infrared emission tube 4 in signal emission module 3 again.After signal succeeds in sending up away, program is carried out one-period, and the light-emitting diode D1 of signal emission module 3 can dodge as feedback.Because each button on key-press module 1 is to be connected separately with the pin of microcontroller, so, when code modulation module 2 adopts the mode of lining by line scan to scan, different buttons can produce different codings.
Fig. 3 is the system chart of the utility model for the receiving unit of bearing circle push button signalling infrared receiving/transmission.This receiving unit consists of infrared receiver module 6, coding processing module 5, function execution module 8 and alarm module 7.After system powers on, coding processing module 5 can constantly refresh the level at microcontroller INT0 pin place, and the INTO pin is connected with the OUT pin of integrated infrared receiving terminal RX1 in infrared receiver module 6.When integrated infrared receiving terminal RX1 receives infrared signal, can be within it section amplified--gain--filtering--demodulation--after shaping by OUT pin output low level falling edge, now, the system that coding processing module 5 detects occurs that the low level falling edge produces interruption, the microcontroller handling interrupt is called the coding handler, decoding after the output of program end is resolved, calling coding comparison program identification is which push button signalling is received, through verification, relatively, after identification, executive signal is transferred to function execution module 8, function execution module 8 is drive parts of objective function.Processing module 5 identifications if the signal that infrared receiver module 6 receives is not encoded, or decode unsuccessfully, buzzer phone FM in alarm module 7 can ring three times continuously under programming control, light-emitting diode D3 flicker three times, as alarm, prevent transmitter module 3 misworks, and the illegal operation of the interference of external infrared signal and malice decoding.Due to the coding difference of each button, and encoding processor divides in the program of 7 execution strict decoding contrast checking procedure arranged, so solved the problems such as mess code, error code and interference code, even two the utility model are used simultaneously, also not there will be interference problem.
Fig. 5 is the module frame chart of the utility model for the code modulation module 2 of the sending module 1 of bearing circle push button signalling infrared receiving/transmission, this module is equipped with microcontroller, its RST pin is connected with reseting module, X1, X2 pin are connected with tfi module, and P1 port and key-press module 1 directly are electrically connected.When having push button signalling to produce, the microcontroller in code modulation module 2 can be identified corresponding button and extract keyboard-coding, produces the carrier modulation of 38KHz simultaneously, and modulation is launched by signal emission module 3.Because each button on key-press module 1 is to be connected separately with the pin of microcontroller, so, when code modulation module 2 adopts the mode of lining by line scan to scan, different buttons can produce different codings.
Fig. 6 is the circuit theory of the utility model for the signal emission module 3 of the sending module 1 of bearing circle push button signalling infrared receiving/transmission, as figure, comprises light-emitting diode D1, aerotron Q1, infrared emission tube 4, resistance R 1, resistance R 2, capacitor C 1.Resistance R 1 is connected with diode D1, resistance R 2 is connected with aerotron Q1, and the aerotron Q1C utmost point is connected with infrared ray D2 power valve, the E utmost point is connected with R2, the B utmost point is connected with microcontroller P2.1, and diode D1 is connected with the vacant P2.0 pin of microcontroller.After the modulation signal of code modulation module 2 has operated, microcontroller can be controlled the infrared ray of infrared emission tube 4 emission carrying informations.After emission finishes, D1 can dodge the feedback as successful launch.
Fig. 8 is the module frame chart of the utility model for the coding processing module 5 of the receiver module 2 of bearing circle push button signalling infrared receiving/transmission.This module is equipped with microcontroller, and its RST pin is connected with reseting module, and X1, X2 pin are connected with tfi module, with infrared receiver module 6, is connected, and with function execution module 8, is connected, and with alarm module 11, is connected.Can produce a low level falling edge information after the integrated infrared receiving terminal RX1 of infrared ray receiver module 6 receives infrared ray, can trigger this module and produce interruption, the decoding of microcontroller handling interrupt calling program, controller reads coding, verification, as check code is not inconsistent, ignore this signal, not carrying out the feature operation disease gives the alarm, as check code correctly continues decoding, call comparison program after decoding and carry out verification, relatively, identify key information, and carry out the objective function of button.
Fig. 9 reseting module that to be the utility model all need for sending module 1 and the receiver module 2 of bearing circle push button signalling infrared receiving/transmission.As Fig. 9, this module comprises switch S 1, resistance R 3, resistance R 4, capacitor C 2, switch S 1 one ends are last and microcontroller reset pin RST electrical connection in parallel with capacitor C 2 after first connecting with resistance R 3, the other end is connected with system VCC, resistance R 4 one ends are connected with the microcontroller reset pin, and the other end is connected with system GND.Switch S 1 is contact switch, presses rear circuit and connects, and unclamps rear circuit and disconnects.After switch S 1 is pressed, system obtains high level and resets, and after switch S 1 is unclamped, system is recovered low level, and program re-executes, and completes reset operation.
Figure 10 tfi module that to be the utility model all need for sending module 1 and the receiver module 2 of bearing circle push button signalling infrared receiving/transmission, as Figure 10, this module comprises crystal oscillator Y1, capacitor C 3, capacitor C 4, capacitor C 3, capacitor C 4 one ends are connected with microcontroller X1, X2 pin by the bipod of crystal oscillator Y1, and the other end altogether.After system powers on, crystal oscillator Y1 work, for microcontroller provides the essential time sequential routine.
2, Figure 11 is the schematic circuit diagram of the utility model for the alarm module 7 of the receiver module 2 of bearing circle push button signalling infrared receiving/transmission, as Figure 11, this module comprises resistance R 5, buzzer phone FM, light-emitting diode D3, aerotron Q2, the aerotron Q2B utmost point is connected with microcontroller P2.3 by resistance R 5, C utmost point ground connection, the E utmost point is connected with buzzer phone FM.When system need to be reported to the police, the FM pin defined on microcontroller can produce the pulse of certain frequency, the buzzer phone sounding, and program can be controlled light-emitting diode D3 flicker three times simultaneously, produces alarm message, reminds the operator note and deal with problems.
Figure 12 the utility model is for the module frame chart of the function execution module 8 of the receiver module 2 of bearing circle push button signalling infrared receiving/transmission.After the function executive signal of coding processing module 5 produces, can control this module and carry out corresponding function.
When on key-press module 1, a button is pressed, can produce a string specific remote control mode, remote control mode carries out remodulation to improve transmitting frequency by the carrier frequency of code modulation module 2 certain frequency of process, reduce power supply power consumption, infrared emission tube 4 in infrared transmission module 5 is to air-launched, integrated infrared receiving terminal RX1 in infrared receiver module 6 receives the infrared ray signal, after being converted to the microampere order electric signal, through amplifying,--gain is--after filtering--demodulation--shaping, be transferred to coding processing module 5 reduction remote control modes, microcontroller carries out code identification, it is which button is pressed that microcontroller is distinguished, start-up performance execution module 10 is controlled relevant device or realizes corresponding function, while carrying out this process, tfi module in radiating portion, tfi module in receiving unit is being worked always, for microcontroller provides the sequential of normal operation.Because each button has different remote control modes and needs through a series of pairing authentication, thus one control a function by building, and can be not disturbed.Due to coding corresponding to button, check part is arranged, so solved the safety problems such as mess code, error code, interference code in coding.
When the infrared receiver module 6 of receiving portion 2 is sensed infrared signal, can produce a falling edge signal and remind microcontroller to process external interrupt, microcontroller reads coding, verification, as check code is not inconsistent, ignore this signal, do not carry out the feature operation disease and give the alarm.As verification is passed through, continue decoding, the comparing function code is also carried out respective operations, completes a signal transmission and controls.When button is pressed over 108us, send the running fire code, receiving system is judged to be continuous executable operations until push button signalling stops sending, and namely button is released.
In the present embodiment, default system powers on, and, when alarm module 7 work, need carry out reset operation and could again implement.
The above is explained in detail the specific embodiment of the present utility model by reference to the accompanying drawings, but the utility model is not limited to above-mentioned embodiment, in the ken possessed those of ordinary skills, can also under the prerequisite that does not break away from the utility model aim, make various variations.

Claims (10)

1. a bearing circle push button signalling infrared transceiver device, is characterized in that: comprise for the radiating portion of downrange dish button infrared signal with for the bearing circle button infrared signal that receives the radiating portion emission the receiving unit that completes the execution of its corresponding function;
Described radiating portion comprises:
-key-press module (1), for Trig control signal;
-code modulation module (2), for coding and the modulation of signal;
-signal emission module (3), launch for the code signal by modulating;
Described receiving unit comprises:
-infrared receiver module (6), the code signal emitted for receiving signal emission module (3);
-coding processing module (5), the code signal received for resolving infrared receiver module (6);
-reseting module, for system reset;
-tfi module, for providing the sequential of microcontroller normal operation;
-alarm module (7), make mistakes or warning during malicious interference for system;
-function execution module (8), for carrying out the function that key-press module (1) is corresponding.
2. bearing circle push button signalling infrared transceiver device according to claim 1, it is characterized in that: described key-press module (1) is arranged on bearing circle (9), code modulation module (2) is lower and coupled at key-press module (1), signal emission module (3) is arranged under bearing circle (9), is connected with code modulation module (2), and light-emitting diode D1 makes progress, infrared emission tube (4) all exposes downwards.
3. bearing circle push button signalling infrared transceiver device according to claim 1, it is characterized in that: described receiving unit is arranged on the bearing circle post tips, the integrated infrared receiving terminal RX1 in infrared receiver module (6) be arranged on that outermost end is all exposed and and signal emission module (3) in infrared emission tube (4) between clear block.
4. bearing circle push button signalling infrared transceiver device according to claim 1 and 2, it is characterized in that: described code modulation module (2) is equipped with microcontroller, the RST pin is connected with reseting module, X1, X2 pin are connected with tfi module, and P1 port and key-press module (1) directly are electrically connected.
5. bearing circle push button signalling infrared transceiver device according to claim 1 and 2, it is characterized in that: described signal emission module (3) comprises light-emitting diode D1, aerotron Q1, infrared emission tube (4), resistance R 1, resistance R 2, capacitor C 1; Resistance R 1 is connected with diode D1, resistance R 2 is connected with aerotron Q1, and the aerotron Q1C utmost point is connected with infrared ray D2 power valve, the E utmost point is connected with R2, the B utmost point is connected with microcontroller P2.1, and diode D1 is connected with the vacant P2.0 pin of microcontroller.
6. according to the described bearing circle push button signalling of claim 1 or 3 infrared transceiver device, it is characterized in that: described infrared receiver module (6) comprises integrated infrared receiving terminal RX1, its first pin is connected with microcontroller is outside, and the second pin is connected with GND, and the 3rd pin is connected with VCC.
7. according to the described bearing circle push button signalling of claim 1 or 3 infrared transceiver device, it is characterized in that: described coding processing module (5) is equipped with microcontroller, the RST pin is connected with reseting module, and X1, X2 pin are connected with tfi module, infrared receiver module (6), function execution module (8), alarm module (7).
8. according to the described bearing circle push button signalling of claim 1 or 3 infrared transceiver device, it is characterized in that: described reseting module comprises switch S 1, resistance R 3, resistance R 4, capacitor C 2, switch S 1 one ends are last and microcontroller reset pin RST electrical connection in parallel with capacitor C 2 after first connecting with resistance R 3, the other end is connected with system VCC, resistance R 4 one ends are connected with the microcontroller reset pin, and the other end is connected with system GND.
9. according to the described bearing circle push button signalling of claim 1 or 3 infrared transceiver device, it is characterized in that: described tfi module comprises crystal oscillator Y1, capacitor C 3, capacitor C 4, capacitor C 3, capacitor C 4 one ends are connected with microcontroller X1, X2 pin by the bipod of crystal oscillator Y1, and the other end altogether.
10. according to the described bearing circle push button signalling of claim 1 or 3 infrared transceiver device, it is characterized in that: described alarm module (7) comprises resistance R 5, buzzer phone FM, light-emitting diode D3, aerotron Q2, the aerotron Q2B utmost point is connected with microcontroller P2.3 by resistance R 5, C utmost point ground connection, the E utmost point is connected with buzzer phone FM.
CN2013202026045U 2013-04-22 2013-04-22 Infrared key signal receiving and transmitting device of steering wheel Expired - Fee Related CN203345004U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013202026045U CN203345004U (en) 2013-04-22 2013-04-22 Infrared key signal receiving and transmitting device of steering wheel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013202026045U CN203345004U (en) 2013-04-22 2013-04-22 Infrared key signal receiving and transmitting device of steering wheel

Publications (1)

Publication Number Publication Date
CN203345004U true CN203345004U (en) 2013-12-18

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Application Number Title Priority Date Filing Date
CN2013202026045U Expired - Fee Related CN203345004U (en) 2013-04-22 2013-04-22 Infrared key signal receiving and transmitting device of steering wheel

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103264724A (en) * 2013-04-22 2013-08-28 昆明理工大学 Infrared transceiving device for signals of steering wheel buttons

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103264724A (en) * 2013-04-22 2013-08-28 昆明理工大学 Infrared transceiving device for signals of steering wheel buttons
CN103264724B (en) * 2013-04-22 2015-12-23 昆明理工大学 A kind of bearing circle push button signalling infrared transceiver device

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