CN101667338A - Infrared receiving module on the basis of USB interface - Google Patents
Infrared receiving module on the basis of USB interface Download PDFInfo
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- CN101667338A CN101667338A CN200910190717A CN200910190717A CN101667338A CN 101667338 A CN101667338 A CN 101667338A CN 200910190717 A CN200910190717 A CN 200910190717A CN 200910190717 A CN200910190717 A CN 200910190717A CN 101667338 A CN101667338 A CN 101667338A
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- usb interface
- receiving module
- infrared receiving
- sign indicating
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Abstract
The invention discloses an infrared receiving module on the basis of a USB interface, comprising a receiving head circuit, an MCU processing circuit which is connected with the receiving head circuitand a USB interface circuit which is connected with the MCU processing unit, wherein the receiving head circuit and the MCU processing circuit share positive 5V direct current power supply voltage ofthe USB interface circuit; the MCU processing unit is connected with the USB interface circuit by a serial data line SDA and a serial clock line SCL of an IIC bus; and the receiving head circuit receives infrared instruction data and outputs to the MCU processing circuit which switches the infrared instruction data into an IIC instruction signal, and the IIC bus carries the instruction signal andrealizes data transmission with other devices by the USB interface. The infrared receiving module on the basis of the USB interface has simple circuit structure, 'plug and play' design and convenientand rapid operation; and a code object can be selected remotely without touching electrical appliances such as a television and the like, and the efficiency is high.
Description
[technical field]
The present invention relates to remote control reception technique field, particularly a kind of USB interface-based infrared receiving module.
[background technology]
At present, the remote-controlled household electrical appliances in fields such as televisor, the remote signal of its reception just progressively from infrared ray to RF signal transition based on the 2.4GHz technology.But characteristics such as that the RF telepilot has is non-directional, remote range is wide, transmitting range is long, highly sensitive, more power saving, the higher two-way communication of cost.But the RF telepilot need cooperate corresponding complete machine electrical equipment, considers links such as actual research and development, producing and selling, service, and the RF telepilot will be the key factor that causes the efficient reduction of links such as the producing and selling of electrical equipment complete machine, service.The RF telepilot is because characteristics such as it is non-directional, remote range is wide, for avoid mutual interference, need and electrical equipment to sign indicating number after, just can operate as normal.To determine efficient high or low to choosing of coding mode.For example: in the sales section of televisor, the sales force need show television function to the user, RF telepilot and complete machine TV have only could normally using after the sign indicating number success, this just means will the RF of a lot of corresponding complete machines telepilot in the market, to become the difficult problem of sales force's maximum so differentiate the RF telepilot, thereby cause lowering efficiency greatly.If take real-time method (after promptly choosing televisor to be demonstrated, carrying out code operations again), solved a difficult problem of differentiating the RF telepilot like this to sign indicating number.If but use conventional to code method, when needs are demonstrated different televisors, the sales force need not stop by certain key of corresponding televisor keying panel come and the RF telepilot to sign indicating number, also can lower efficiency greatly, particularly hang wall when the televisor model machine and be placed in the local time that the Shopping Guide does not reach, the keying panel that the sales force manually press televisor is inconvenience especially.
[summary of the invention]
For addressing the above problem, fundamental purpose of the present invention is to provide a kind of USB interface-based infrared receiving module and uses this infrared receiving module and carry out method to sign indicating number.
For achieving the above object, technical scheme of the present invention is:
A kind of USB interface-based infrared receiving module, include the MCU treatment circuit that receives a circuit, be connected to a reception circuit, with the usb circuit that the MCU treatment circuit is connected, a described reception circuit and the shared usb circuit of MCU treatment circuit+5V direct current supply voltage; Described MCU treatment circuit is connected to usb circuit by the serial data line SDA and the serial time clock line SCL of iic bus; Receive a circuit and receive the ultra-red order data, and export the MCU treatment circuit to, the MCU treatment circuit is converted to the IIC command signal with the ultra-red order data, and iic bus carries command signal, carries out the transmission of data through USB interface and other equipment.
Use USB interface-based infrared receiving module and carry out the method for telepilot, comprise the steps: sign indicating number
Earlier USB interface-based infrared receiving module is inserted to the USB interface of TV, that selects Infrared remote controller faces toward this infrared receiving module remote control to the sign indicating number key;
USB interface-based infrared receiving module is received the ultra-red order data by receiving a circuit, by software processes director data is converted to the IIC command signal, iic bus carries command signal, inputs to the televisor master chip, and the back of decoding obtains the director data of infrared emission end;
TV is received code instruction, enters the sign indicating number state, and the RF telepilot can be to carrying out man-to-man to code operations when the televisor that advances into the sign indicating number state.
Compared to prior art, the infrared receiving module that the present invention is based on USB interface transmits the ultra-red order data by utilizing USB interface+5V direct current supply voltage and SDA, SCL, realize external USB interface-based infrared receiving module, circuit structure is simple, and plug and play is convenient to operation, under special circumstances, can be not by electrical equipment such as contact televisor, the remote object of selecting sign indicating number, efficient height.
[description of drawings]
Fig. 1 is the theory diagram that the present invention is based on the infrared receiving module of USB interface.
Fig. 2 is the application flow diagram that the present invention is based on the infrared receiving module of USB interface.
[embodiment]
See also shown in Figure 1ly, a kind of USB interface-based infrared receiving module of the present invention includes the MCU treatment circuit that receives a circuit, is connected to a reception circuit, the usb circuit that is connected with the MCU treatment circuit.A described reception circuit and the shared usb circuit of MCU treatment circuit+5V direct current supply voltage; Described MCU treatment circuit is connected to usb circuit by the serial data line SDA and the serial time clock line SCL of iic bus.The ultra-red order data input to and receive a circuit, through receiving a circuit output ultra-red order data, the ultra-red order data input to the MCU treatment circuit, by software processes director data is converted to IIC (SDA and SCL) command signal, iic bus carries command signal, input to master chip through USB interface, decoding by master chip obtains the director data of infrared emission end, thereby operates accordingly.By the flexible utilization usb circuit+5V direct current supply voltage and serial data line SDA and serial time clock line SCL transmit the ultra-red order data, realize external USB interface-based infrared receiving module.
The infrared receiving module that the present invention is based on USB interface is received the ultra-red order data by receiving a circuit, and this director data can be the infrared code value of general function, or only limits to the specific code value to the sign indicating number use.By software processes director data is converted to IIC (SDA and SCL) command signal, iic bus carries command signal, inputs to the televisor master chip, and the back of decoding obtains the director data of infrared emission end.If the ultra-red order data that a reception circuit is received are specific code values, then the televisor response is to code operations, simultaneously, can be by television set OSD prompting for to the sign indicating number state, show to be in, under this state, use the RF telepilot to carry out code operations to pattern, to the sign indicating number success, then the RF telepilot can operate as normal.If receiving the ultra-red order data that a circuit receives is the infrared code value of general function, televisor response this moment then be the function of corresponding code value, and code operations is not conflicted.
Figure 2 shows that the infrared receiving module application flow that the present invention is based on USB interface, by infrared command signal IR being converted to IIC command signal (SCL, SDA carries ultra-red order information), through USB interface, in IIC command signal input TV master chip, be reduced to the ultra-red order data, decoding back decision instruction type, if be specific code value (promptly being used for the code value of RF telepilot) to sign indicating number, then this moment, televisor entered the sign indicating number state, the RF telepilot can carry out code operations, after the sign indicating number success, RF telepilot and televisor are corresponding one by one, can carry out TV operation by the RF telepilot; If the type of judging is the code value of general function, then televisor also can respond corresponding function (promptly by the infrared television function of operating).
When the present invention is applied to sign indicating number, the USB interface that TV is plugged with USB interface-based infrared module by elder generation, that selects Infrared remote controller faces toward the module remote control to the sign indicating number key, TV is received code instruction, enter the sign indicating number state, the RF telepilot can be to carrying out man-to-man to code operations when the TV that advances into the sign indicating number state.
This creates USB interface-based infrared receiving module, has not only improved the compatibility of hardware, and this modular circuit is simple in structure, plug and play, convenient to operation, under special circumstances, can be not by electrical equipment such as contact televisor, the remote object of selecting sign indicating number, efficient height.In addition, the dirigibility height of this creation can use infrared function, can switch to the RF function again, can select according to concrete needs, solves the defective to the code operations aspect of RF telepilot and TV, and infrared flexibly or RF TV operation can be provided again.
Most preferred embodiment described above only is that the present invention is set forth and illustrates, but is not limited to disclosed any concrete form, and it is possible carrying out many modifications and variations.
Claims (4)
1. USB interface-based infrared receiving module, include the MCU treatment circuit that receives a circuit, be connected to a reception circuit, with the usb circuit that the MCU treatment circuit is connected, it is characterized in that: a described reception circuit and the shared usb circuit of MCU treatment circuit+5V direct current supply voltage; Described MCU treatment circuit is connected to usb circuit by the serial data line SDA and the serial time clock line SCL of iic bus; Receive a circuit and receive the ultra-red order data, and export the MCU treatment circuit to, the MCU treatment circuit is converted to the IIC command signal with the ultra-red order data, and iic bus carries command signal, carries out the transmission of data through USB interface and other equipment.
2. USB interface-based infrared receiving module as claimed in claim 1 is characterized in that: the ultra-red order data that a described reception circuit is received can be the infrared code values of general function, or only limit to the specific code value to the sign indicating number use.
3. application rights requires 1 described USB interface-based infrared receiving module to carry out the method for telepilot to sign indicating number, it is characterized in that, comprises the steps:
Earlier USB interface-based infrared receiving module is inserted to the USB interface of TV, that selects Infrared remote controller faces toward this infrared receiving module remote control to the sign indicating number key;
USB interface-based infrared receiving module is received the ultra-red order data by receiving a circuit, by software processes director data is converted to the IIC command signal, iic bus carries command signal, inputs to the televisor master chip, and the back of decoding obtains the director data of infrared emission end;
TV is received code instruction, enters the sign indicating number state, and the RF telepilot can be to carrying out man-to-man to code operations when the televisor that advances into the sign indicating number state.
4. as claimed in claim 3 code method be is characterized in that, also comprise the steps:
TV receives that to code instruction response also is in the sign indicating number state by television set OSD prompting televisor simultaneously to code operations, shows to be in pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101907176A CN101667338B (en) | 2009-09-25 | 2009-09-25 | Infrared receiving module on the basis of USB interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101907176A CN101667338B (en) | 2009-09-25 | 2009-09-25 | Infrared receiving module on the basis of USB interface |
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| Publication Number | Publication Date |
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| CN101667338A true CN101667338A (en) | 2010-03-10 |
| CN101667338B CN101667338B (en) | 2012-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101907176A Expired - Fee Related CN101667338B (en) | 2009-09-25 | 2009-09-25 | Infrared receiving module on the basis of USB interface |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112562307A (en) * | 2020-12-07 | 2021-03-26 | 深圳创维－Rgb电子有限公司 | IIC signal transmission system, IIC signal transmission method, and storage medium |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2663932Y (en) * | 2003-12-11 | 2004-12-15 | 西安理工大学 | A cargo transportation safety monitor |
| CN2716935Y (en) * | 2004-08-04 | 2005-08-10 | 南京南自信息技术有限公司 | Infrared computer remote controller |
| KR20070023429A (en) * | 2005-08-24 | 2007-02-28 | 엘지전자 주식회사 | Infrared ray communication apparatus for universal serial bus |
| KR20090041833A (en) * | 2007-10-25 | 2009-04-29 | 엘지전자 주식회사 | Display device and auto mode conversion method |
| CN101277377A (en) * | 2008-04-22 | 2008-10-01 | 青岛海尔软件有限公司 | Wireless digital set-top box |
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2009
- 2009-09-25 CN CN2009101907176A patent/CN101667338B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112562307A (en) * | 2020-12-07 | 2021-03-26 | 深圳创维－Rgb电子有限公司 | IIC signal transmission system, IIC signal transmission method, and storage medium |
| CN112562307B (en) * | 2020-12-07 | 2022-04-12 | 深圳创维－Rgb电子有限公司 | IIC signal transmission system, IIC signal transmission method, and storage medium |
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| CN101667338B (en) | 2012-06-06 |
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