CN201498096U - Double cpu infrared remote controller - Google Patents
Double cpu infrared remote controller Download PDFInfo
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- CN201498096U CN201498096U CN2009202314690U CN200920231469U CN201498096U CN 201498096 U CN201498096 U CN 201498096U CN 2009202314690 U CN2009202314690 U CN 2009202314690U CN 200920231469 U CN200920231469 U CN 200920231469U CN 201498096 U CN201498096 U CN 201498096U
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Abstract
The utility model discloses a double CPU infrared remote controller which solves the problem of a single CPU-chip controller of less hardware source, such as limit storage, function enlargement limitation, insufficient code umbers and the like. The double CPU infrared remote controller comprises a single chip U1, a crystal oscillator X1, capacitances (C5, C6, C7,C8), LEDs (D1, D2, D3, D4, D5, D6, D7, D8), resistances (R1, R2, R3) , a triode Q1 , an infrared emitting tube D9 and a 7*8 matrix keyboard 1 composed of 56 pressing keys, and also comprises a single chip U2, a crystal oscillator X2 and capacitances (C1, C2, C3, C4). Series asynchronous communication can be done between the main single chip U1 and the second single chip U2, and the second single chip U2 is mainly used for displaying functions to assist the main single chip U1 to work.
Description
Technical field
The utility model relates to a kind of Infrared remote controller, relates in particular to a kind of pair of CPU Infrared remote controller, belongs to electronic technology field.
Background technology
Infra-red remote control is exactly that to utilize wavelength be that near infrared ray between 0.76～1.5 μ m transmits control signal, and it is a kind of light-operated circuit.The appearance of Infrared remote controller is given and is used various electrical equipment that a lot of facilities is provided, and is used widely in household electrical appliance and industrial control system, such as being used for remote-controlled television set, air-conditioning etc.Existing Infrared remote controller internal control chip all is the single cpu chip, and along with telepilot keyboard button amount increases, increased functionality and pilot lamp show variation more, and sign indicating number type protocol data amount increases thereupon.When the function expansion of telepilot is strengthened, CPU calculation process task is busy, because it is limited in one's ability that the transportation of a cpu chip is handled, its calculation process speed does not reach requirement, a cpu chip memory capacity is limited simultaneously, cause its yard type quantity also limited, therefore, be necessary its technical scheme is improved to satisfy the needs of remote-controller function expansion.
The utility model content
The purpose of this utility model is to provide a kind of pair of CPU Infrared remote controller, and is limited to solve single cpu chip arithmetic speed and memory capacity, problems such as the limited and sign indicating number type lazy weight of function expansion.
The purpose of this utility model is achieved by the following technical programs:
A kind of pair of CPU Infrared remote controller comprises single-chip microcomputer U1, crystal oscillator X1, capacitor C 5, capacitor C 6, capacitor C 7, capacitor C 8, light emitting diode D1, light emitting diode D2, light emitting diode D3, light emitting diode D4, light emitting diode D5, light emitting diode D6, light emitting diode D7, light emitting diode D8, resistance R 1, resistance R 2, resistance R 3, triode Q1, infrared transmitting tube D9,56 7 * 8 matrix keyboards 1 that button is formed also comprise single-chip microcomputer U2, crystal oscillator X2, capacitor C 1, capacitor C 2, capacitor C 3, capacitor C 4.The vdd terminal of described single-chip microcomputer U1 is connected to positive source, VSS is terminated at power cathode, capacitor C 5 is connected between the vdd terminal and VSS end of single-chip microcomputer U1, the positive pole of capacitor C 6 is connected to vdd terminal, negative pole is connected to the VSS end, 1 pin of crystal oscillator X1 is connected to the XO end of single-chip microcomputer U1,3 pin are connected to the XI end, 2 pin ground connection, capacitor C 7 is connected between 2 pin and 3 pin of crystal oscillator X1, capacitor C 8 is connected between 2 pin and 1 pin of crystal oscillator X1,7 alignments of 7 * 8 matrix keyboards from left to right are connected to the PC2 of single-chip microcomputer U1 respectively, PC0, PB7, PB0, PB1, PB2, the PB3 mouth, 8 lines of 7 * 8 matrix keyboards 1 are connected to the PA0 of single-chip microcomputer U1 from top to bottom respectively, PA1, PA2, PA3, PA4, PA5, PA6, the PA7 mouth; The vdd terminal of described single-chip microcomputer U2 is connected to positive source, VSS is terminated at power cathode, capacitor C 2 is connected between the vdd terminal and VSS end of single-chip microcomputer U2, the positive pole of capacitor C 1 is connected to vdd terminal, negative pole is connected to the VSS end, 1 pin of crystal oscillator X2 is connected to the XO end of single-chip microcomputer U2,3 pin are connected to the XI end, 2 pin ground connection, capacitor C 4 is connected between 2 pin and 3 pin of crystal oscillator X2, and capacitor C 3 is connected between 2 pin and 1 pin of crystal oscillator X2, and the negative electrode of light emitting diode D8～D1 is connected with PA0～PA7 mouth of single-chip microcomputer U2 respectively, the anode of light emitting diode D8～D1 all is connected with an end of resistance R 3, and the other end of resistance R 3 is connected with positive source; The emitter of described triode Q1 is through resistance R 1 back ground connection, the base stage of triode Q1 is connected with an end of resistance R 2, the other end of resistance R 2 is connected with the PC1 mouth of single-chip microcomputer U1, the collector of triode Q1 is connected with the negative electrode of infrared transmitting tube D9, and the anode of infrared transmitting tube D9 is connected with positive source; The transmission mouth PB1 of described single-chip microcomputer U1 is connected with the receiving port PB0 of single-chip microcomputer U2, and the transmission mouth PB1 of single-chip microcomputer U2 is connected with the receiving port PB0 of single-chip microcomputer U1, carries out serial asynchronous communication by it.
The purpose of this utility model can also further realize by following technical measures:
A kind of pair of CPU Infrared remote controller, the model of described single-chip microcomputer U1 and single-chip microcomputer U2 is DC6688F2SCN.
Compared with prior art, the beneficial effects of the utility model are:
The technical solution of the utility model has designed dual-cpu structure, can carry out serial asynchronous communication between principal and subordinate's chip, be mainly used in Presentation Function from chip, the work of assistance master chip, master chip is transferred to shows signal behind chip, can handle other affairs, realizes its time-sharing work, it is limited to have solved single cpu chip telepilot arithmetic speed and memory capacity, problems such as the limited and sign indicating number type lazy weight of function expansion.
Description of drawings
Fig. 1 is a circuit diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, two CPU Infrared remote controller comprise single-chip microcomputer U1, crystal oscillator X1, capacitor C 5, capacitor C 6, capacitor C 7, capacitor C 8, light emitting diode D1, light emitting diode D2, light emitting diode D3, light emitting diode D4, light emitting diode D5, light emitting diode D6, light emitting diode D7, light emitting diode D8, resistance R 1, resistance R 2, resistance R 3, triode Q1, infrared transmitting tube D9,56 7 * 8 matrix keyboards 1 that button is formed also comprise single-chip microcomputer U2, crystal oscillator X2, capacitor C 1, capacitor C 2, capacitor C 3, capacitor C 4.The model of described single-chip microcomputer U1 and single-chip microcomputer U2 is DC6688F2SCN.The vdd terminal of single-chip microcomputer U1 is connected to positive source, VSS is terminated at power cathode, capacitor C 5 is connected between the vdd terminal and VSS end of single-chip microcomputer U1, the positive pole of capacitor C 6 is connected to vdd terminal, negative pole is connected to the VSS end, 1 pin of crystal oscillator X1 is connected to the XO end of single-chip microcomputer U1,3 pin are connected to the XI end, 2 pin ground connection, capacitor C 7 is connected between 2 pin and 3 pin of crystal oscillator X1, capacitor C 8 is connected between 2 pin and 1 pin of crystal oscillator X1,7 alignments of matrix keyboard 1 from left to right are connected to the PC2 of single-chip microcomputer U1 respectively, PC0, PB7, PB0, PB1, PB2, the PB3 mouth, 8 lines of matrix keyboard 1 are connected to the PA0 of single-chip microcomputer U1 from top to bottom respectively, PA1, PA2, PA3, PA4, PA5, PA6, PA7 mouth, line insert the I/O mouth of single-chip microcomputer as level output end, and alignment inserts the I/O mouth of single-chip microcomputer then as the level input end; The vdd terminal of described single-chip microcomputer U2 is connected to positive source, VSS is terminated at power cathode, capacitor C 2 is connected between the vdd terminal and VSS end of single-chip microcomputer U2, the positive pole of capacitor C 1 is connected to vdd terminal, negative pole is connected to the VSS end, 1 pin of crystal oscillator X2 is connected to the XO end of single-chip microcomputer U2,3 pin are connected to the XI end, 2 pin ground connection, capacitor C 4 is connected between 2 pin and 3 pin of crystal oscillator X2, and capacitor C 3 is connected between 2 pin and 1 pin of crystal oscillator X2, and the negative electrode of light emitting diode D8～D1 is connected with PA0～PA7 mouth of single-chip microcomputer U2 respectively, the anode of light emitting diode D8～D1 all is connected with an end of resistance R 3, and the other end of resistance R 3 is connected with positive source; The emitter of described triode Q1 is through resistance R 1 back ground connection, the base stage of triode Q1 is connected with an end of resistance R 2, the other end of resistance R 2 is connected with the PC1 mouth of single-chip microcomputer U1, the collector of triode Q1 is connected with the negative electrode of infrared transmitting tube D9, and the anode of infrared transmitting tube D9 is connected with positive source; The transmission mouth PB1 of described single-chip microcomputer U1 is connected with the receiving port PB0 of single-chip microcomputer U2, the transmission mouth PB1 of single-chip microcomputer U2 is connected with the receiving port PB0 of single-chip microcomputer U1, carry out serial asynchronous communication by it, master chip U1 both can send instruction, can receive the status command of sending from chip U2 again, both the instruction that master chip U1 sends can be received from chip U2, its status command can be sent again.In foregoing circuit, capacitor C 5, C6 is the power filtering capacitor of single-chip microcomputer U1, X1 is the external crystal-controlled oscillation of single-chip microcomputer U1, provides single-chip microcomputer U1 when work required frequency of operation, capacitor C 7, C8 is the starting of oscillation electric capacity of single-chip microcomputer U1, is used for stablizing the duty of crystal oscillator X1.Capacitor C 1, C2 is the power filtering capacitor of single-chip microcomputer U2, X2 is the external crystal-controlled oscillation of single-chip microcomputer U2, provides single-chip microcomputer U2 when work required frequency of operation, capacitor C 3, C4 is the starting of oscillation electric capacity of single-chip microcomputer U2, is used for stablizing the duty of crystal oscillator X2.Electric capacity R1, R2 are the current-limiting resistances of triode Q1, and infrared transmitting tube D9 is used to launch the infra-red code signal, carry out the remote control to electric equipment.
The master chip single-chip microcomputer U1 of two CPU Infrared remote controller is responsible for the button identification of 7 * 8 matrix keyboards 1, and process is as follows: when button was not pressed, all line output terminals all were high level, represented no key to press.When button was pressed, then the line output line will be dragged down, and like this, just can learn whether have key to supress by the state that reads in output line.After confirming have key to press, can enter the process of determining concrete closed key.Its method is: successively line is changed to low level, when promptly putting certain root line and being low level, other line is a high level.After definite certain root line position is low level, detect the level state of each alignment more line by line.If it is low that certain is classified as, then this alignment is exactly closed button with the button that is changed to low level line infall.
After the transmission mouth PB1 of single-chip microcomputer U1 receives the instruction that button sends over, to send the question and answer instruction from chip single-chip microcomputer U2, whether inquiry single-chip microcomputer U2 is ready to, when single-chip microcomputer U2 is unripe earlier, it returns not ready signal to single-chip microcomputer U1, and single-chip microcomputer U1 continues to wait for; When single-chip microcomputer U2 is ready to, return ready signal to single-chip microcomputer U1, the data that this moment, single-chip microcomputer U1 can transmit are passed to single-chip microcomputer U2.The display circuit of telepilot is by single-chip microcomputer U2 control, and light emitting diode D1-D8 is used to the data that show that single-chip microcomputer U2 receives, is generally the various duties of telepilot.Resistance R 3 is current-limiting resistances of light emitting diode.Master chip is transferred to shows signal behind chip, can handle other affairs, realizes its time-sharing work.Dual-cpu structure solved single cpu chip telepilot arithmetic speed and memory capacity limited, problems such as the limited and sign indicating number type lazy weight of function expansion.
In addition to the implementation, the utility model can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.
Claims (2)
1. two CPU Infrared remote controller, comprise single-chip microcomputer U1, crystal oscillator X1, capacitor C 5, capacitor C 6, capacitor C 7, capacitor C 8, light emitting diode D1, light emitting diode D2, light emitting diode D3, light emitting diode D4, light emitting diode D5, light emitting diode D6, light emitting diode D7, light emitting diode D8, resistance R 1, resistance R 2, resistance R 3, triode Q1, infrared transmitting tube D9,56 7 * 8 matrix keyboards (1) that button is formed, it is characterized in that, also comprise single-chip microcomputer U2, crystal oscillator X2, capacitor C 1, capacitor C 2, capacitor C 3, capacitor C 4, the vdd terminal of described single-chip microcomputer U1 is connected to positive source, VSS is terminated at power cathode, and capacitor C 5 is connected between the vdd terminal and VSS end of single-chip microcomputer U1, and the positive pole of capacitor C 6 is connected to vdd terminal, negative pole is connected to the VSS end, 1 pin of crystal oscillator X1 is connected to the XO end of single-chip microcomputer U1, and 3 pin are connected to XI end, 2 pin ground connection, capacitor C 7 is connected between 2 pin and 3 pin of crystal oscillator X1, capacitor C 8 is connected between 2 pin and 1 pin of crystal oscillator X1, and 7 alignments of 7 * 8 matrix keyboards (1) from left to right are connected to the PC2 of single-chip microcomputer U1 respectively, PC0, PB7, PB0, PB1, PB2, the PB3 mouth, 8 lines of 7 * 8 matrix keyboards are connected to the PA0 of single-chip microcomputer U1 from top to bottom respectively, PA1, PA2, PA3, PA4, PA5, PA6, the PA7 mouth; The vdd terminal of described single-chip microcomputer U2 is connected to positive source, VSS is terminated at power cathode, capacitor C 2 is connected between the vdd terminal and VSS end of single-chip microcomputer U2, the positive pole of capacitor C 1 is connected to vdd terminal, negative pole is connected to the VSS end, 1 pin of crystal oscillator X2 is connected to the XO end of single-chip microcomputer U2,3 pin are connected to the XI end, 2 pin ground connection, capacitor C 4 is connected between 2 pin and 3 pin of crystal oscillator X2, and capacitor C 3 is connected between 2 pin and 1 pin of crystal oscillator X2, and the negative electrode of light emitting diode D8～D1 is connected with PA0～PA7 mouth of single-chip microcomputer U2 respectively, the anode of light emitting diode D8～D1 all is connected with an end of resistance R 3, and the other end of resistance R 3 is connected with positive source; The emitter of described triode Q1 is through resistance R 1 back ground connection, the base stage of triode Q1 is connected with an end of resistance R 2, the other end of resistance R 2 is connected with the PC1 mouth of single-chip microcomputer U1, the collector of triode Q1 is connected with the negative electrode of infrared transmitting tube D9, and the anode of infrared transmitting tube D9 is connected with positive source; The transmission mouth PB1 of described single-chip microcomputer U1 is connected with the receiving port PB0 of single-chip microcomputer U2, and the transmission mouth PB1 of single-chip microcomputer U2 is connected with the receiving port PB0 of single-chip microcomputer U1.
2. as claimed in claim 1 pair of CPU Infrared remote controller is characterized in that the model of described single-chip microcomputer U1 and single-chip microcomputer U2 is DC6688F2SCN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202314690U CN201498096U (en) | 2009-08-28 | 2009-08-28 | Double cpu infrared remote controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202314690U CN201498096U (en) | 2009-08-28 | 2009-08-28 | Double cpu infrared remote controller |
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| Publication Number | Publication Date |
|---|---|
| CN201498096U true CN201498096U (en) | 2010-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202314690U Expired - Fee Related CN201498096U (en) | 2009-08-28 | 2009-08-28 | Double cpu infrared remote controller |
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| CN (1) | CN201498096U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022151601A1 (en) * | 2021-01-18 | 2022-07-21 | 黄策 | Information terminal having two keyboards |
-
2009
- 2009-08-28 CN CN2009202314690U patent/CN201498096U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022151601A1 (en) * | 2021-01-18 | 2022-07-21 | 黄策 | Information terminal having two keyboards |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 Termination date: 20160828 |
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| CF01 | Termination of patent right due to non-payment of annual fee |