CN101685576A - Infrared remote controller and infrared remote control signal generating method - Google Patents
Infrared remote controller and infrared remote control signal generating method Download PDFInfo
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Abstract
The invention discloses an infrared remote controller and an infrared remote control signal generating method; the method comprises the following steps: a pressed key of a remote controller is read out and a waking up signal is generated, the waking up signal makes a response and the corresponding keying signal is generated; the keying signal is converted into keying data by a coder; pulse waveform for modulation of infrared rays is generated; the keying data is converted into an infrared remote control signal by the pulse waveform, and a frame data structure of the remote control signal comprises a synchronization pulse signal, a device code, a length code and a plurality of data codes which occupy one data set respectively, and the length code contains the length information of the datacode. The data transmission capacity of the remote control signal is expanded; the information of the length code can be defined at any time, so as to be beneficial to detecting data error caused by accidental jamming in the remote control signal by adopting non-integer time interval or a protection pulse increasing method.
Description
Technical field
The present invention relates to signal generating method, especially relate to the production method of infrared remote-controlled signal of the transmission data length of the every frame signal of a kind of definable, and the infrared remote controller that uses this method.
Background technology
Along with the intelligentized raising of electronic and electrical equipment, many electronic apparatuss all have the remote control control function, such as televisor, air-conditioning etc., all are to adopt telepilot to send infrared remote-controlled signal to control.
As shown in Figure 1, existing infrared remote control signal is unit with the frame, and every frame comprises synchronous code and multi-group data sign indicating number usually; Every group of numeric data code function difference, length also may be different, are generally 8bit (position); The total length of every frame data is fixed, and for example: be fixed as 2 groups of data, every group of data length is 8bit; Protection is arranged at interval between every frame data, its width is usually greater than the time width of data " 0 " or " 1 "; And data set can be done different definition, as customer number, device code, key set code or the like.When needs send the remote signal of different length data, need complicated coding and decoding technology to realize.
Therefore, the infrared remote control signal of the existing transmission data length of fixing, multi-functional, the complicated remote control demand for future can not satisfy the requirement of data transmission capabilities.
Summary of the invention
The objective of the invention is to propose the production method of infrared remote-controlled signal of the transmission data length of the every frame signal of a kind of definable, and a kind of infrared remote controller that uses this method, to solve that present infrared remote control signal adopts fixing transmission data length and the technical matters that can't satisfy the data transmission demand.
For solving technical matters of the present invention, the present invention discloses the production method of a kind of infrared remote controller and a kind of infrared remote control signal, this method comprises: read the key that is pressed in the telepilot and produce wake-up signal, wake-up signal is responded and produces corresponding keying signal; By scrambler keying signal is transformed into the keying data; Produce the pulse waveform that modulation of infrared rays is used; The keying data are become infrared remote control signal according to pulse waveform conversion, and the frame data structure of remote signal comprises synchronization pulse, takies device code and length code and several numeric data codes of a data set respectively, and length code includes the length information of the described numeric data code of expression.
Wherein, described length information is the quantity of described numeric data code.
Wherein, described length code also comprises attribute information.
Wherein, described length information is the quantity according to the specific described numeric data code of the corresponding expression of the default table of comparisons.
Compared with prior art, the present invention has following beneficial effect:
The present invention expand the data transmission capabilities of remote information, and the information of length code can define at any time by increase the length code of an expression communications of control data length information in the data frame structure of every frame remote signal; In addition, owing to comprised the communications of control data length information in the length code, therefore, the method that helps adopting the non-integral multiple time interval or increase the protection pulse in remote signal detects the accidental error in data that causes that disturbs.
Description of drawings
Fig. 1 is the data frame structure synoptic diagram of existing remote signal;
Fig. 2 is the data frame structure synoptic diagram of remote signal of the present invention.
Embodiment
In the remote signal that telepilot produces, one of them data set of every frame signal is defined as customer number or device code, just can control different clients or different equipment, the feasible remote signal of sending with a kind of infrared ray can be controlled different opertaing devices.Under the situation that opertaing device is determined, its device code is identical, the different data sets that has only expression key set code or variable data.The data frame structure of infrared remote control signal as shown in table 1 below;
| Synchronously | Device code | Key set code |
Table 1
Wherein, device code takies a data set, and other data set is all represented the data of key set code.
When equipment complex maybe needed to transmit the data of different length, the remote signal of regular length structure just can not meet the demands.Such as, the equipment of general complex function, the conveying capacity of its each several part data is different.The equipment complex of keyboard and mouse for example is because the button of keyboard is in 256, so just can represent with a 8bit (position) data set; But the data of mouse comprise offset data and the left and right press key state and the roller data of X, Y direction, and a 8bit data set just is difficult to represent these quantity of information so; In this case, can send the data set of different length, represent respectively mouse in the equipment complex and keyboard are started to control the making time spent, the data frame structure of remote signal as table 2 and table 3 with different customer numbers or device code:
| Synchronously | Device code 1 | Key set code |
Table 2
| Synchronously | Device code 2 | The X coordinate | The Y coordinate | Key-press status |
Table 3
In remote signal, utilize device code (or customer number) to distinguish the data that it transmits different length, must in remote signal, use 2 or above device code, and the decoding program in the electronic and electrical equipment also needs to discern 2 kinds of device codes, determines the data length that will receive according to different device codes.
If make the data frame structure of the remote signal of generation keep a unique device code, and remote signal can transmit the data of different length, feasible method is: in every frame signal of remote signal, increase the length information that the length code that takies a data set is used for representing to transmit data.
As shown in Figure 2, the data frame structure of its expression remote signal: remote signal is begun by synchronizing signal, next is the device code that takies a data set (being generally 8bit), is the length code that takies a data set once more, is according to predefined several numeric data codes once more.Each numeric data code also takies a data set respectively, is used for communications of control data.The length information that comprises in the length code is meant the number of the numeric data code that comprises in this frame remote signal, also can refer to the number (can comprise device code, length code itself) of total data in this frame remote signal.Length code is a unit with byte (8bit or 4bit) generally.Certainly before length code can be arranged on before the device code or after the device code.
With a data set is that 8bit calculates, and the numerical value in 1 length code can be arranged to 0-255, i.e. the remote signal of this data frame structure is adopted in expression, at most can be according to the distinct device needs, and every frame signal can have 255 different data lengths.In actual applications, the data of every frame remote signal are generally smaller, can not surpass 40 usually, length code can be done thus further and divide in detail: such as the attribute information that is divided into 3bit, and the length information of 5bit; And the length information of 5bit can represent that every frame remote control can transmit the remote-control data or the control data of maximum 31 data sets, can satisfy the practical application needs fully.Certainly, attribute information and length information respectively account for several (bit) in length code, can define according to actual needs; Attribute information combines with length information, can also distinguish identical but the data that attribute is different of length.
Data frame structure for remote signal shown in Figure 2, length code can also be done as down conversion: length information is done implicit expression handle, that is: be scheduled to table of comparisons of definition at the transmitting terminal and the receiving end of infrared remote-controlled signal, corresponding this frame remote signal of expression of the data of different length code transmits the data set of different length, and is as shown in table 4:
| The data of length code | The length of data set |
| ??1 | ??5 |
| ??2 | ??7 |
| ??3 | ??13 |
| ??4 | ??17 |
| ??... | ??... |
Table 4
Such as, length code is 4 in a frame remote signal, it represents that this frame remote signal transmits the numeric data code of 17 expression control datas.A benefit is thus defined, and the user can better press actual needs defines the numeric data code that transmits in the data frame structure of remote signal quantity, the length code of more efficient use finite data information.
Infrared remote controller adopts the data frame structure of above-mentioned remote signal, and the process that produces infrared remote control signal is as follows: read the key that is pressed in keyboard or the telepilot and produced wake-up signal by the wake-up signal generation unit; Produce keying signal by wake-up detection unit response wake-up signal; By scrambler keying signal is transformed into the keying data; Produce the pulse waveform that modulation of infrared rays is used by pulse producer; By Infrared Signal Translator the keying data are become infrared remote control signal according to pulse waveform conversion, and the frame data structure of remote signal comprises synchronization pulse, takies device code and length code and several numeric data codes of a data set respectively, and length code includes the quantity information of the described numeric data code of expression; By infrared transmitter the infrared remote control signal that Infrared Signal Translator produces is sent with the frame form.
To sum up, the present invention expand the data transmission capabilities of remote information, and the information of length code can define at any time by increase the length code of an expression communications of control data length information in the data frame structure of every frame remote signal; In addition, owing to comprised the communications of control data length information in the length code, therefore, the method that helps adopting the non-integral multiple time interval or increase the protection pulse in remote signal detects the accidental error in data that causes that disturbs.
Claims (8)
1, a kind of production method of infrared remote control signal is characterized in that, comprising:
Read the key that is pressed in the telepilot and produce wake-up signal;
Wake-up signal is responded and produces corresponding keying signal;
By scrambler keying signal is transformed into the keying data;
Produce the pulse waveform that modulation of infrared rays is used;
The keying data are become infrared remote control signal according to pulse waveform conversion, and the frame data structure of remote signal comprises synchronization pulse, takies device code and length code and several numeric data codes of a data set respectively, and length code includes the length information of the described numeric data code of expression.
2, the production method of infrared remote control signal according to claim 1 is characterized in that, described length information is the quantity of described numeric data code.
3, the production method of infrared remote control signal according to claim 2 is characterized in that, described length code also comprises attribute information.
4, the production method of infrared remote control signal according to claim 1 is characterized in that, described length information is the quantity according to the specific described numeric data code of the corresponding expression of the default table of comparisons.
5, a kind of infrared remote controller is characterized in that, comprising:
Wake-up signal generation unit: read the key, the generation wake-up signal that are pressed in keyboard or the telepilot;
Wake-up detection unit: the response wake-up signal produces keying signal;
Scrambler: keying signal is transformed into the keying data;
Pulse producer: produce the pulse waveform that modulation of infrared rays is used;
Infrared Signal Translator: the keying data are become infrared remote control signal according to pulse waveform conversion, and the frame data structure of remote signal comprises synchronization pulse, takies device code and length code and several numeric data codes of a data set respectively, and length code includes the length information of the described numeric data code of expression;
Infrared transmitter: the infrared remote control signal that Infrared Signal Translator is produced sends with the frame form.
6, infrared remote controller according to claim 5 is characterized in that, described length information is the quantity of described numeric data code.
7, infrared remote controller according to claim 6 is characterized in that, described length code also comprises attribute information.
8, infrared remote controller according to claim 5 is characterized in that, described length information is the quantity according to the specific described numeric data code of the corresponding expression of the default table of comparisons.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103369388A (en) * | 2012-03-29 | 2013-10-23 | 索尼公司 | Remote control device, information processing apparatus, information processing system, and remote control method |
| CN103383804A (en) * | 2012-05-03 | 2013-11-06 | 珠海格力电器股份有限公司 | Transmission method for remote control signal, and remote controller and receiving unit thereof |
| CN108407736A (en) * | 2018-03-05 | 2018-08-17 | 奇瑞汽车股份有限公司 | A kind of control method and system of the communication of generalization automobile remote-control |
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| JPH03270596A (en) * | 1990-03-20 | 1991-12-02 | Showa R & D Kk | Remote control transmission and reception system |
| US5386251A (en) * | 1993-06-03 | 1995-01-31 | Zilog, Inc. | Television receiver with learning remote control system capable of being controlled by a remote control device manufactured by different companies |
| JPH0984147A (en) * | 1995-09-08 | 1997-03-28 | Sony Corp | Remote controller, electronic equipment and electronic equipment system |
| DE69820031T2 (en) * | 1997-01-31 | 2004-07-08 | Thomson Inc., Indianapolis | REMOTE CONTROL SYSTEM AND COMMUNICATION DEVICE THEREFOR |
| KR100289017B1 (en) * | 1998-12-15 | 2001-05-02 | 김용범 | Infrared transmitting and receiving system |
| KR100698173B1 (en) * | 2004-12-31 | 2007-03-22 | 엘지전자 주식회사 | Remote controller, receiver, method for transmitting/receiving remote controller's signal, and data structure for remote controller's signal |
| CN1900989A (en) * | 2005-12-08 | 2007-01-24 | 南京Lg同创彩色显示系统有限责任公司 | Remote controller code format structure, method and apparatus for receiving and transmitting signals thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103369388A (en) * | 2012-03-29 | 2013-10-23 | 索尼公司 | Remote control device, information processing apparatus, information processing system, and remote control method |
| CN103383804A (en) * | 2012-05-03 | 2013-11-06 | 珠海格力电器股份有限公司 | Transmission method for remote control signal, and remote controller and receiving unit thereof |
| CN108407736A (en) * | 2018-03-05 | 2018-08-17 | 奇瑞汽车股份有限公司 | A kind of control method and system of the communication of generalization automobile remote-control |
| CN108407736B (en) * | 2018-03-05 | 2019-12-10 | 奇瑞汽车股份有限公司 | Control method and system for universal automobile remote control communication |
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