CN103383804A - Transmission method for remote control signal, and remote controller and receiving unit thereof - Google Patents
Transmission method for remote control signal, and remote controller and receiving unit thereof Download PDFInfo
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Abstract
The invention discloses a transmission method for a remote control signal and a remote controller and a receiving unit thereof. The method comprises the following steps that: the remote controller responds to key operation to generate a corresponding remote control signal, wherein the data frame structure of the remote control signal comprises a function code identity field and a function code data field, the function code identity field carries information indicating validity of a function code, and the function code data field only carries the valid function code indicated in the function code identity field; and the remote controller transmits the remote control signal to the receiving unit. According to the invention, the problems of long time needed in transmission of a remote control signal and weakness of the remote control signal caused by the fixed length of the data frame structure of the remote control signal in the prior art are overcome; composition of the data frame structure is more flexible; and during transmission, transmission time for the remote control signal is shortened, interference in transmission is reduced, and performance of the remote controller is improved.
Description
Technical field
The present invention relates to the remote controlled with signals field, more specifically, relate to a kind of transmission method, telepilot and receiving equipment thereof of remote signal.
Background technology
Infrared remote coding form in correlation technique is all the mode that adopts length fixing usually, and as shown in Figure 1, namely the data message amount of each frame is fixed.Because length is fixed, follow-up new function can't be increased to inside original frame data, can only create separately frame data, has caused increasing the transmission time of frame data, and the data transmission period that adopts the Infrared Transmission mode is longer, signal is more weak, also is unfavorable for Function Extension.As shown in Figure 2, for the relatively variable frame format of length code, its length code is in a single day fixing, can't change the length of the Frame of current transmission, after the other side receives, also all resolves, and the transmission time is long.
Simultaneously, because the performance data formal definition is fixed, when a telepilot only needs one of them function of frame data, also need to transmit whole frame data, and can be along with the increase of function, the transmission of data formation meeting constantly lengthens, and that causes the transmission of data utilizes degree low, is unfavorable for the development of individual character telepilot.
Therefore, the infrared remote coding mode of existing regular length, set form can not satisfy the expansion of future feature and the growth requirement of individual character telepilot.
Summary of the invention
The present invention aims to provide a kind of transmission method, telepilot and receiving equipment thereof of remote signal, fixes to solve at least in correlation technique the data frame structure length due to remote signal, and the time that causes transmitting remote signal is longer, the problem that signal is weak.
According to an aspect of the present invention, a kind of transmission method of remote signal is provided, comprise: remote controller response generates corresponding remote signal in button operation, wherein, the data frame structure of described remote signal comprises function code identification field and function code data field, carry the information of the validity of deixis code in described function code identification field, only carry effective function code indicated in described function code identification field in described function code data field; Described telepilot is sent to receiving equipment with described remote signal.
Preferably, the function code of carrying in described function code data field is one or more, and described one or more function codes are arranged sequentially by remote control in described function code data field.
Preferably, in described function code identification field, offset alignment is carried out according to ID size and byte number in the position of indicated effective function code.
Preferably, head at described data frame structure also comprises synchronous code and device code, afterbody at described data frame structure also comprises end code, wherein, described synchronous code is used for the remote signal of difference different manufacturers, described device code is used for the function of difference different remote, and described end code is used to indicate the end of described data frame transfer.
Preferably, described telepilot also comprises after described remote signal is sent to receiving equipment: described receiving equipment receives described remote signal, and the data in the Frame of described remote signal are carried out exclusive or check.
Preferably, described receiving equipment also comprises after receiving described remote signal: carry out functional localization according to the position skew of effective function code in described function code data field.
Preferably, described remote signal is infrared remote-controlled signal.
According to another aspect of the present invention, a kind of telepilot is provided, comprise: generation module, be used for generating corresponding remote signal in response to button operation, wherein, the data frame structure of described remote signal comprises function code identification field and function code data field, carries the information of the validity of deixis code in described function code identification field, only carries effective function code indicated in described function code identification field in described function code data field; Sending module is used for described remote signal is sent to receiving equipment.
Preferably, the function code of carrying in described function code data field is one or more, and described one or more function codes are arranged sequentially by remote control in described function code data field.
Preferably, in described function code identification field, offset alignment is carried out according to ID size and byte number in the position of indicated effective function code.
Preferably, head at described data frame structure also comprises synchronous code and device code, afterbody at described data frame structure also comprises end code, wherein, described synchronous code is used for the remote signal of difference different manufacturers, described device code is used for the function of difference different remote, and described end code is used to indicate the end of described data frame transfer.
Preferably, described telepilot is Infrared remote controller.
According to a further aspect of the invention, provide a kind of receiving equipment, having comprised: receiver module is used for receiving the remote signal that telepilot provided by the invention sends, and the data in the Frame of described remote signal is carried out exclusive or check.
Preferably, described receiving equipment also comprises: the functional localization module is used for carrying out functional localization according to the position skew of the effective function code of described remote signal function code data field.
The present invention has adopted following method: generate remote signal after receiving button operation, wherein, the data frame structure of described remote signal has been done variation, this frame structure comprises function code identification field and the function code data field of the information of the validity that is used to indicate function code, wherein, the function code data field only carries effective function code indicated in described function code identification field.By using said method, be that the data that send in frame structure function code data field are all useful data, make the remote signal frame structure of transmission be optimized, overcome in the correlation technique data frame structure length due to remote signal and fixed, the time that causes transmitting remote signal is longer, the problem that signal is weak, and then make the formation of data frame structure more flexible, in transmitting procedure, shortened the transmission time of remote signal, reduce the interference in the transmitting procedure, promoted the performance of telepilot.
Description of drawings
Accompanying drawing is used to provide a further understanding of the present invention, consists of the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 shows the frame structure schematic diagram of regular length transmission mode in correlation technique;
Fig. 2 shows the frame structure schematic diagram of variable-length transmission mode in correlation technique;
Fig. 3 shows the process flow diagram of transmission method of the remote signal of the embodiment of the present invention;
Fig. 4 shows the frame structure schematic diagram of the self-adaptation variable-length transmission mode of the embodiment of the present invention;
Fig. 5 shows the schematic diagram of the length information organization definition of the preferred embodiment of the present invention;
Fig. 6 shows the structured flowchart of the telepilot of the embodiment of the present invention;
Fig. 7 shows the structured flowchart of the receiving equipment of the embodiment of the present invention.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
Long based on the data frame structure length due to remote signal in correlation technique, the time that causes transmitting remote signal is longer, the problem that signal is weak, and the embodiment of the present invention provides a kind of transmission method of remote signal, its flow process comprises that step S302 is to step S304 as shown in Figure 3:
Step S302., remote controller response generates corresponding remote signal in button operation, wherein, the data frame structure of remote signal comprises function code identification field and function code data field, carry the information of the validity of deixis code in the function code identification field, indicated effective function code in carrying function code identification field only in the function code data field;
Step S304, telepilot is sent to receiving equipment with remote signal.
By using the embodiment of the present invention, generate remote signal after receiving button operation, wherein, the data frame structure of remote signal has been done variation, this frame structure comprises function code identification field and the function code data field of the information of the validity that is used to indicate function code, wherein, function code data field indicated effective function code in carrying function code identification field only.By using above-described embodiment, be that the data that send in frame structure function code data field are all useful data, make the remote signal frame structure of transmission be optimized, overcome in the correlation technique data frame structure length due to remote signal long, the time that causes transmitting remote signal is longer, the problem that signal is weak, and then make the formation of data frame structure more flexible, in transmitting procedure, shortened the transmission time of remote signal, reduce the interference in the transmitting procedure, promoted the performance of telepilot.
Above-mentioned frame structure not only comprises function code identification field and function code data field, comprises that also data frame structure should have synchronous code (or first code), device code (or customer number), end code.The below describes the integral body of above-mentioned data frame structure.
The data frame structure of the embodiment of the present invention can be as shown in Figure 4, every frame data are all guided by a synchronous code (or first code), make different synchronous code (or first code) can be used for distinguishing the remote information of different manufacturers, effectively avoid mistake processing, mistake remote control.For example, the telepilot of televisor and the telepilot of air-conditioning, because synchronous code (or first code) is inconsistent, the phenomenon that when also just can avoid controlling TV, air-conditioning also can be touched.
Wherein, in the situation that synchronous code (or first code) is identical, every frame data can carry out by device code (or customer number) difference of same brand different remote function.For example, can realize the difference transmission of factory's intrinsic parameter and customer parameter by device code (or customer number).
In implementation process, whether the function that the function code identification field is used to indicate the data in the function code data field is effective, the function code of carrying in the function code data field can one, also can be for a plurality of, to data function n etc., be all the data segment for the storage difference in functionality such as the data function 1 in Fig. 4, data function 2.One or more function codes are arranged by the remote control order in the function code data field, it is the order of user's operational and controlled key button, after the user key-press indication, one or more function codes are carried out offset orientation according to ID size and byte number and are arranged, wherein, the ID size is Data Identification territory deixis code location status effectively before, and byte number is used to indicate the length of function code etc.
Be example as shown in Figure 4, function code ID size is that data 1 are first, and data 2 are second, and data 3 are the 3rd etc., and the byte number of data 1 is 1, the byte number of data 2 is 2, and the byte number of data 3 is 3 etc., as the user when at first button selects data 2 to be the effective efficiency code, data 2 are offset forward 1 byte, by that analogy, and then positioning arrangement, namely the side-play amount of effective efficiency code be the byte number of aforementioned invalid function code or itself and.After receiving end is receiving this signal, can carry out functional localization according to the position skew of effective function code in described function code data field, namely determine position offset according to No. ID and byte number, the migration process of migration process when sending is opposite, make the position of the data function code after skew corresponding with the function of receiving equipment, start corresponding function.
Afterbody at data frame structure also comprises end code, and wherein, end code is used to indicate the end of data frame transfer.
After step S304 carried out, receiving equipment can be processed the control signal that receives for guaranteeing the reliability of the transmission of data, namely the data in the Frame of remote signal is carried out exclusive or check.This operation can avoid having changed due to interference the definition of data, perhaps causes the mistake of the validity information of function code identification field.
Above-mentioned remote signal can be multiple kind, and remote signal can be infrared remote-controlled signal, in the situation that possible, also can remote signal be set to the Bluetooth remote control signal.
The below describes above-mentioned transmission mode take infrared remote-controlled signal as example.
Preferred embodiment
The technical matters that runs into due to existing Infrared remote controller is that the transmission form of presentation due to remote-control data causes, its problem is embodied in: adopt fixing data length to transmit, because data transmission expansion demand causes the technical matters in the integer increases longer transmission time interval; Adopt the transmission of data length can customize, function is few, the many technical matterss of transmission gibberish but the telepilot that the transmission of data definition fixedly causes has.
For addressing the above problem, this preferred embodiment provides a kind of transmission method of infrared remote-controlled signal, specifically can be called the infrared remote control data encoding transmission mode with adaptive ability, this mode can be embodied in: the length of every transmission frame number certificate is regulated automatically, can expand needs according to remote-controller function and re-start definition; The function definition of every transmission frame number certificate is adjusted automatically, can carry out different definition according to the difference of remote-controller function, realizes that data length is further flexible.
Below, describe with regard to above-mentioned embodiment.
The infrared remote control the transmission of data coded format structure of this preferred embodiment comprises: first code or synchronous code that sign one frame data begin; Customer number or device code can be used for distinguishing every frame data; One group of function code mark domain is selected effective marker according to the functional characteristics of telepilot, with the transmission sequence of guiding back performance data, realizes that invalid function do not transmit; One group of function code data field (as data function 1, data function 2 ...), this group performance data needs to determine according to the function effective marker; Indicate the end code that frame data finish.In transmitting procedure, because the length of every transmission frame number certificate is automatically to change, therefore, the end with an end code sign transmission after the group of every frame data is very important.
In implementation process, the function code data field can carry out automatically selecting to put number to the function of telepilot self according to the key-press status of telepilot, for example, for the simple telepilot of function, its function only has data 1 and data n, when transmitting by the mode according to regular length shown in Figure 1, just need the transmission frame number to equal the remote information of (the every frame length of n/); When transmitting by adjustable length mode shown in Figure 2, just need transmission one frame length to equal the remote information of n; The quantity of information of both transmission modes is all very large, with length and length consuming time, has amplified the probability of accidental interference, error in data easily occurs.Yet, adopt adaptive transmission mode shown in Figure 4, by the data function 1 in function data table (FDT) and data function n are selected to put number, need transmission one frame length is 2 remote information, greatly reduce the load of remote control transmission, reduce the possibility of accidentally disturbing, also improved the equipment reaction time.
Wherein, space for effective defined function table, effectively sort out and the data group of arranging is crucial, can be by being defined into a related function array the inside, simultaneously, need imply a length information in each data group, its definition can be as shown in Figure 5, like this, and when remote information is received, can facilitate, effectively navigate to concrete data sense according to side-play amount, also just can determine thus the scope (n/8 byte) of function code data field.
In order further to guarantee the reliability of the transmission of data, the data of every frame transmission are carried out exclusive or check, can avoid having changed due to interference like this definition of data, perhaps cause the mistake of menu information.Wherein, above-mentioned function code data field has determined the adaptive ability of the transmission of data, only sends active data when sending, and it makes whole frame data possess the automatic look-up table function, when receiving equipment receives, also can read according to agreement in advance.
To sum up, this preferred embodiment is by increasing the function code data field in every frame data, realize the custom feature of secured transmission of payload data, the transmittability of expansion remote information effectively solves the transmission of data redundancy and because Function Extension and problem that the transmission time doubles to increase.Simultaneously, the data transfer mode that this preferred embodiment proposes makes Function Extension more flexible: the length of the transmission of data can be regulated according to the function that reality is used, and data definition can the characteristics of telepilot own be adjusted.Further, can allow telepilot dominate transmission, more personalized.
The embodiment of the present invention also provides a kind of telepilot, its structure as shown in Figure 6, comprise: generation module 10, be used for generating corresponding remote signal in response to button operation, wherein, the data frame structure of remote signal comprises function code identification field and function code data field, carries the information of the validity of deixis code in the function code identification field, indicated effective function code in carrying function code identification field only in the function code data field; Sending module 20 with generation module 10 couplings, is used for remote signal is sent to receiving equipment.
Wherein, the function code of carrying in the function code data field is one or more, and one or more function codes are arranged sequentially by remote control in the function code data field.In the function code identification field, offset alignment is carried out according to ID size and byte number in the position of indicated effective function code.
Head at data frame structure also comprises synchronous code and device code, afterbody at data frame structure also comprises end code, and wherein, synchronous code is used for the remote signal of difference different manufacturers, device code is used for the function of difference different remote, and end code is used to indicate the end of data frame transfer.
Above-mentioned telepilot can be Infrared remote controller, in the situation that possible, also can carry out remote control by bluetooth.
The remote signal that the telepilot that provides for the reception embodiment of the present invention sends, the embodiment of the present invention also provides a kind of receiving equipment, as shown in Figure 7, comprising: receiver module 30, be used for receiving the remote signal that telepilot sends, and the data in the Frame of remote signal are carried out exclusive or check; Functional localization module 40 with receiver module 30 couplings, is used for carrying out functional localization according to the position skew of the effective function code of remote signal function code data field.
As can be seen from the above description, the above embodiments of the present invention have realized following technique effect:
The embodiment of the present invention is by adopting a kind of transmission mode that increases by one group of automatic look-up table data in every frame infrared remote control the transmission of data, make telepilot in the process that sends Frame, select to send useful data, embodied its adaptive ability, strengthened the extended capability of remote information, improved the validity and reliability of transmission information, avoid due to Function Extension integral multiple to lengthen transmission intercal or because transmission of redundant data causes disturbing once in a while the error in data that causes, improve the reliability of transmission information.
obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, perhaps be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, carried out by calculation element thereby they can be stored in memory storage, perhaps they are made into respectively each integrated circuit modules, perhaps a plurality of modules in them or step being made into the single integrated circuit module realizes.Like this, the present invention is not restricted to any specific hardware and software combination.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (14)
1. the transmission method of a remote signal, is characterized in that, comprising:
Remote controller response generates corresponding remote signal in button operation, wherein, the data frame structure of described remote signal comprises function code identification field and function code data field, carry the information of the validity of deixis code in described function code identification field, only carry effective function code indicated in described function code identification field in described function code data field;
Described telepilot is sent to receiving equipment with described remote signal.
2. method according to claim 1, is characterized in that, the function code of carrying in described function code data field is one or more, and described one or more function codes are arranged sequentially by remote control in described function code data field.
3. method according to claim 2, is characterized in that, in described function code identification field, offset alignment is carried out according to ID size and byte number in the position of indicated effective function code.
4. the described method of any one according to claim 1 to 3, it is characterized in that, head at described data frame structure also comprises synchronous code and device code, afterbody at described data frame structure also comprises end code, wherein, described synchronous code is used for the remote signal of difference different manufacturers, and described device code is used for the function of difference different remote, and described end code is used to indicate the end of described data frame transfer.
5. method according to claim 4, is characterized in that, described telepilot also comprises after described remote signal is sent to receiving equipment:
Described receiving equipment receives described remote signal, and the data in the Frame of described remote signal are carried out exclusive or check.
6. method according to claim 5, is characterized in that, described receiving equipment also comprises after receiving described remote signal:
Carry out functional localization according to the position skew of effective function code in described function code data field.
7. method according to claim 6, is characterized in that, described remote signal is infrared remote-controlled signal.
8. a telepilot, is characterized in that, comprising:
Generation module, be used for generating corresponding remote signal in response to button operation, wherein, the data frame structure of described remote signal comprises function code identification field and function code data field, carry the information of the validity of deixis code in described function code identification field, only carry effective function code indicated in described function code identification field in described function code data field;
Sending module is used for described remote signal is sent to receiving equipment.
9. telepilot according to claim 8, is characterized in that, the function code of carrying in described function code data field is one or more, and described one or more function codes are arranged sequentially by remote control in described function code data field.
10. telepilot according to claim 9, is characterized in that, in described function code identification field, offset alignment is carried out according to ID size and byte number in the position of indicated effective function code.
11. the described telepilot of any one according to claim 8 to 10, it is characterized in that, head at described data frame structure also comprises synchronous code and device code, afterbody at described data frame structure also comprises end code, wherein, described synchronous code is used for the remote signal of difference different manufacturers, and described device code is used for the function of difference different remote, and described end code is used to indicate the end of described data frame transfer.
12. telepilot according to claim 11 is characterized in that, described telepilot is Infrared remote controller.
13. a receiving equipment is characterized in that, comprising:
Receiver module is used for receiving the remote signal that the described telepilot of claim 8 to 12 any one sends, and the data in the Frame of described remote signal is carried out exclusive or check.
14. receiving equipment according to claim 13 is characterized in that, also comprises:
The functional localization module is used for carrying out functional localization according to the position skew of the effective function code of described remote signal function code data field.
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