CN102810247A - Infrared remote control module and remote control method thereof - Google Patents
Infrared remote control module and remote control method thereof Download PDFInfo
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- CN102810247A CN102810247A CN2012103035624A CN201210303562A CN102810247A CN 102810247 A CN102810247 A CN 102810247A CN 2012103035624 A CN2012103035624 A CN 2012103035624A CN 201210303562 A CN201210303562 A CN 201210303562A CN 102810247 A CN102810247 A CN 102810247A
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Abstract
The invention belongs to the technical field of the infrared remote control of an intelligent household electrical appliance and relates to an infrared remote control module. The module comprises a complex programmable logic device (CPLD), an infrared transmitting unit and an infrared receiving unit, wherein the CPLD comprises an infrared output interface, an infrared input interface, a serial interface, a first counter and a second counter, the serial interface is respectively and sequentially connected with the infrared output interface and the infrared transmitting unit by the first counter and the second counter, and the serial interface is also connected with the infrared input interface and the infrared receiving unit sequentially. The module and a remote control method thereof, which are disclosed by the invention, can be flexibly applied to an intelligent home system, are used for realizing the control of a plurality of household electrical appliances with the function of infrared receiving and have the characteristics of compact structure, high signal stability, good reliability and the like.
Description
Technical field
The invention belongs to intelligent appliance Infrared Ray Remote Control Technology field, particularly a kind of infrared remote control module and remote control thereof thereof.
Background technology
IR remote controller is the control terminal of the use of many home appliances; Increase along with all kinds of household electrical appliances quantity; Telepilot quantity increases, bring to the user constant, simultaneously because home appliance does not form same control protocol; Can not realize intelligence, control automatically, telepilot control is a main path of Smart Home.
Infrared remote control control module based on system receives the order from processor controls, and the control corresponding coding is modulated, and sends in the home appliance through infrared transmitting tube, realizes the automatic control of home appliance.
The control mode of home appliance is to use IR remote controller at present, and the corresponding a kind of telepilot of equipment is of a great variety.
Ununified control protocol, the product of the same type of different manufacturers uses the Different control coding.With a kind of distinct device of producer, because of function is different, control mode is also different, therefore is used for the Smart Home infrared interface and need integrates the infrared control coding.
Present infrared control function is mainly used special chip, and is primarily aimed at the button control terminal, Smart Home to tame electric control need with the interface of system processor, less this type chip of seeing of existing market needs special design.
Summary of the invention
The present invention has overcome the defective of prior art, and a kind of general infrared remote control module is provided, and based on this infrared remote control module, can realize the control that has the household electrical appliances of infrared receiving function to multiple.
The invention discloses a kind of infrared remote control module, this module comprises CPLD, infrared emission unit and infrared receiver, and this CPLD comprises infrared output interface, infrared input interface, serial line interface, first counter and second counter; This serial line interface links to each other with this infrared output interface and this infrared emission unit with this second counter through this first counter respectively successively; This serial line interface also links to each other with this infrared input interface and this infrared receiver successively, and this CPLD is used for the pulse position coding and the modulation of infrared signal on the one hand, is used for the demodulation and the decoding of infrared signal on the other hand; This first counter; The carrier wave length that is used for record controls instruction, this second counter is used to write down the room length of this steering order; This infrared output interface; Be used for and will be sent to said infrared emission unit through the pulse signal after the said CPLD modulation, this infrared input interface is used to receive, demodulation is from the pulse signal of said infrared receiver.
Further, this serial line interface is UART (Universal Asynchronous Receiver/Transmitter, a universal asynchronous reception/transmission) interface.
The invention also discloses a kind of infrared remote control method, this method comprises: infrared remote-controlled signal process of transmitting and infrared remote-controlled signal receiving course, wherein,
This infrared remote-controlled signal process of transmitting is that CPLD receives steering order according to the clock frequency of setting through serial line interface; And based on the pulse-position modulation mode; Utilize first counter and second counter to write down the carrier wave length and the room length of this steering order respectively, convert this steering order to the remote control coding pulse, afterwards; Through infrared output interface with this remote control coding pulse transmission to infrared emission unit; Drive this infrared emission unit and send infrared remote-controlled signal, the controlled target electric equipment
The infrared remote-controlled signal receiving course does, receives outside infrared signal through infrared receiver, converts this infrared signal to infrared electric signal by infrared input interface, and this CPLD decodes to this infrared electric signal based on the pulse-position modulation mode.
Further, this serial line interface is the UART interface.
The beneficial effect of a kind of infrared remote control module disclosed by the invention and remote control thereof thereof is: 1) infrared remote control module of the present invention can be applied in the intelligent domestic system flexibly; Replace existing domestic electrical equipment remote controller, only can realize the control that has infrared receiving function household electrical appliances to many through the device that this infrared remote control module is installed; 2) this infrared remote control module is developed based on CPLD and is processed, and than the formation of traditional infrared remote-control device, has characteristics such as compact conformation, signal stabilization degree height; 3) infrared remote control method of the present invention, based on two counters, cycle alternation work produces accurate coding regularly, has higher reliability.
Description of drawings
Fig. 1 is the structural representation of infrared remote control module of the present invention.
Embodiment
A kind of infrared remote control module of the present invention and remote control thereof thereof specify as follows in conjunction with accompanying drawing and embodiment.
As shown in Figure 1; The invention discloses a kind of infrared remote control module 101; Comprise CPLD102, infrared emission unit 103 and infrared receiver 104; CPLD102 comprises infrared output interface 105, infrared input interface 106, serial line interface 107, first counter 108 and second counter 109; Serial line interface 107 links to each other with infrared output interface 105 and infrared emission unit 103 with second counter 109 through first counter 108 respectively successively, and serial line interface 107 also links to each other with infrared input interface 106 and infrared receiver 104 successively.Wherein, CPLD102 is used for the pulse position coding and the modulation of infrared signal on the one hand, is used for the decoding of infrared signal on the other hand; First counter 108 is used for the carrier wave length that record controls is instructed; Second counter 109 is used to write down the room length of this steering order; Infrared output interface 105 is used for the pulse signal after said CPLD modulation is sent to said infrared emission unit; Infrared input interface 106 is used to receive, demodulation is from the pulse signal of said infrared receiver; Serial line interface 107; Be used for linking to each other with the processor of intelligent domestic system; And connect and carry out serial data communication between the processor, the steering order of receiving processor input, and the infrared coding data after CPLD102 handles are sent to processor; In order to satisfy the requirement of the external communication interface of most of processor, can use the UART interface.
The invention also discloses a kind of infrared remote control method, in conjunction with being described below of 101 pairs of these methods of infrared remote control module: this method comprises infrared remote-controlled signal process of transmitting and infrared remote-controlled signal receiving course, wherein,
The infrared remote-controlled signal process of transmitting is that CPLD102 is according to the clock frequency of setting, through the steering order of serial line interface 107 receptions from the intelligent domestic system processor; And based on the pulse-position modulation mode; Utilize first counter 108 and second counter 109 to write down the carrier wave length and the room length of this steering order respectively, convert this steering order to the remote control coding pulse, afterwards; Through infrared output interface 105 with this remote control coding pulse transmission to infrared emission unit 103; Drive infrared emission unit 103 and send infrared remote-controlled signal, the controlled target electric equipment
The infrared remote-controlled signal receiving course does; Receive outside infrared signal through infrared receiver 104; Convert this infrared signal to infrared electric signal by infrared input interface 106, CPLD102 decodes to this infrared electric signal based on the pulse-position modulation mode.
Above embodiment only is used to explain the present invention; And be not limitation of the present invention; The those of ordinary skill in relevant technologies field under the situation that does not break away from the spirit and scope of the present invention, can also be made various variations and modification; Therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (4)
1. infrared remote control module; Said module comprises CPLD, infrared emission unit and infrared receiver; It is characterized in that; Said CPLD comprises infrared output interface, infrared input interface, serial line interface, first counter and second counter; Said serial line interface links to each other with said infrared output interface and said infrared emission unit with said second counter through said first counter respectively successively, and said serial line interface also links to each other with said infrared input interface and said infrared receiver successively
Said CPLD is used for the pulse position coding and the modulation of steering order on the one hand, is used for the decoding of infrared signal on the other hand,
Said first counter is used for the carrier wave length that record controls is instructed,
Said second counter is used to write down the room length of said steering order,
Said infrared output interface is used for the pulse signal after said CPLD modulation is sent to said infrared emission unit,
Said infrared input interface is used to receive, demodulation is from the pulse signal of said infrared receiver.
2. a kind of infrared remote control module according to claim 1 is characterized in that said serial line interface is the UART interface.
3. an infrared remote control method is characterized in that, said method comprises: infrared remote-controlled signal process of transmitting and infrared remote-controlled signal receiving course, wherein,
Said infrared remote-controlled signal process of transmitting is that CPLD receives steering order according to the clock frequency of setting through serial line interface; And based on the pulse-position modulation mode; Utilize first counter and second counter to write down the carrier wave length and the room length of said steering order respectively, convert said steering order to the remote control coding pulse, afterwards; Through infrared output interface with said remote control coding pulse transmission to infrared emission unit; Drive said infrared emission unit and send infrared remote-controlled signal, the controlled target electric equipment
Said infrared remote-controlled signal receiving course does; Receive outside infrared signal through infrared receiver; Convert said infrared signal to infrared electric signal by infrared input interface, said CPLD decodes to said infrared electric signal based on the pulse-position modulation mode.
4. infrared remote control method according to claim 3 is characterized in that, said serial line interface is the UART interface.
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| CN2012103035624A CN102810247A (en) | 2012-08-24 | 2012-08-24 | Infrared remote control module and remote control method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104484992A (en) * | 2014-12-31 | 2015-04-01 | 广州科技贸易职业学院 | Infrared remote control decoder based on programmable logic device |
| CN111031269A (en) * | 2019-12-25 | 2020-04-17 | 何小丽 | Eye-care television and mobile phone mobile box |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007000605A1 (en) * | 2005-06-29 | 2007-01-04 | Symbian Software Limited | Remote control framework |
| CN1945648A (en) * | 2006-09-30 | 2007-04-11 | 刘正东 | Universal studying programmable remote controller and its control method |
| CN101504794A (en) * | 2008-02-05 | 2009-08-12 | 上海胜途数字技术有限公司 | Programmable multi-control remote controller for guesthouse digital guest room |
-
2012
- 2012-08-24 CN CN2012103035624A patent/CN102810247A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007000605A1 (en) * | 2005-06-29 | 2007-01-04 | Symbian Software Limited | Remote control framework |
| CN1945648A (en) * | 2006-09-30 | 2007-04-11 | 刘正东 | Universal studying programmable remote controller and its control method |
| CN101504794A (en) * | 2008-02-05 | 2009-08-12 | 上海胜途数字技术有限公司 | Programmable multi-control remote controller for guesthouse digital guest room |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104484992A (en) * | 2014-12-31 | 2015-04-01 | 广州科技贸易职业学院 | Infrared remote control decoder based on programmable logic device |
| CN111031269A (en) * | 2019-12-25 | 2020-04-17 | 何小丽 | Eye-care television and mobile phone mobile box |
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Application publication date: 20121205 |