CN102238397B - Multi-channel infrared system and infrared parameter setting method thereof - Google Patents
Multi-channel infrared system and infrared parameter setting method thereof Download PDFInfo
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- CN102238397B CN102238397B CN201010171097.4A CN201010171097A CN102238397B CN 102238397 B CN102238397 B CN 102238397B CN 201010171097 A CN201010171097 A CN 201010171097A CN 102238397 B CN102238397 B CN 102238397B
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Abstract
The invention provides a multi-channel infrared system which comprises an infrared receiving module used for receiving infrared signals through a first infrared channel, and is characterized by also comprising at least one infrared transmitting module and a corresponding parameter setting module, wherein the infrared transmitting module is used for transmitting infrared signals through a corresponding second infrared channel, and the parameter setting module is used for setting the infrared parameter for the second infrared channel corresponding to the infrared transmitting module. The multi-channel infrared system is provided with different infrared parameters, thus multiple infrared channels are not interfered mutually, and the infrared signals can be transmitted normally.
Description
Technical field
The present invention relates to infrared signal treatment technology.
Background technology
Ultrared feature is non-penetrative and highly directive, and being difficult for affects surrounding enviroment, is therefore widely used in being applicable in household electrical appliance point-to-point, closely remote control.Common household electrical appliance, as television set, Set Top Box, air-conditioning, DVD etc., all use infrared remote control, and it is simple that Infrared Ray Remote Control Technology also has circuit debugging, low cost and other advantages.
In common household electrical appliance, infrared system only has the i.e. infrared channel of a road infrared signal conventionally, use a kind of wavelength and carrier frequency, but in the systems such as shutter glasses 3D TV, usually need many cover infrared systems to complete the transmission of remote signal and the transmission of field sync signal, because need to extract the field sync signal of TV in shutter glasses 3D TV, pass to liquid crystal glasses, to control opening or closing of liquid crystal glasses images of left and right eyes eyeglass.At present, field sync signal mostly adopts infrared transmission, and transmitting terminal is with certain infrared wavelength, carrier frequency and coded system, and by real-time field sync signal modulate emission, receiving terminal (3D glasses) is receiving demodulation in real time, extracts field sync signal.Therefore, for 3D television set, it is infrared receiving set (reception remote signal), is again infrared transmitting set (field sync signal transmitting).
In addition, the remote controller of our different electrical equipment used in everyday, normally with code modulation mode, intermittently, alternation, is therefore difficult for interfering with each other.But the glasses infrared system of 3D TV, is continuation, real-time continual transmitting and receiving, if adopt same infrared wavelength or carrier frequency with the machine remote control system, very easily causes both interfering with each other.On the one hand, the field synchronization infrared emission system of 3D TV, can cause interference to the machine remote control system and other infrared equipment, causes malfunctioning or other infrared equipment operation irregularity of remote controller; On the other hand, the machine infrared remote control system of 3D TV script or the remote controller of miscellaneous equipment, also easily cause interference to the infrared receiving system of 3D glasses, causes 3D glasses step-out, causes glasses flicker, affects 3D viewing effect, even cannot watch.
Summary of the invention
The object of the present invention is to provide a kind of multi-channel infrared system and infrared parameter setting method thereof, its multiple infrared channels are not interfere with each other, ensure the normal transmission of infrared signal.
Technical scheme of the present invention is as follows:
A kind of multi-channel infrared system, comprise the infrared receiving module that receives infrared signal by the first infrared channel, it is characterized in that: described multi-channel infrared system also comprises that at least one infrared transmission module and the parameter corresponding with it arrange module, described infrared transmission module is for sending infrared signal by the second corresponding infrared channel, and described parameter arranges module for the IR parameters of corresponding the second infrared channel of infrared transmission module is set.
Described multi-channel infrared system, wherein, described multi-channel infrared system is also arranged module or another parameter and module is set arranges the IR parameters of described the first infrared channel by described parameter.
Described multi-channel infrared system, wherein, described multi-channel infrared system is 3D TV, comprise by the first infrared channel and receive the infrared receiving module, processor of infrared signal that remote controller sends, to the 3D glasses transmission infrared transmission module of field sync signal and the parameter of a correspondence, module be set by the second infrared channel, described parameter arranges module and arranges under the control of processor the IR parameters of described the second infrared channel.
Described multi-channel infrared system, wherein, described infrared receiving module obtains the IR parameters configuration information of described the second infrared channel from remote controller by the first infrared channel, processor arranges module and arranges the IR parameters of infrared signal that described infrared transmission module is launched according to parameter described in the control of described IR parameters configuration information, described IR parameters comprises infrared emission wavelength and carrier modulation frequency.
The infrared parameter setting method of described multi-channel infrared system, comprises the following steps:
A. obtain the IR parameters configuration information of the second infrared channel by the infrared signal of the first infrared channel transmission;
Whether the IR parameters that B. judges described the second infrared channel disturbs existing infrared signal, is to reset, otherwise continues step C;
C., the IR parameters of described the second infrared channel is set, the IR parameters transmission infrared signal of the second infrared channel to arrange according to the IR parameters configuration information of the second infrared channel.
Described infrared parameter setting method, wherein, described steps A specifically comprises:
A1. input the IR parameters information of described the second infrared channel by remote controller, after being encoded, send by the first infrared channel;
The infrared receiving module of A2.3D TV obtains the infrared signal of remote controller transmission and demodulates the IR parameters information of the second infrared channel.
Described infrared parameter setting method, wherein, described step B specifically comprises:
The processor of B1.3D TV obtains the IR parameters information of the second infrared channel from infrared receiving module;
Whether the IR parameters information that B2. judges described the second infrared channel is identical with the parameter that prestores, the identical IR parameters of re-entering described the second infrared channel by remote controller is different the IR parameters information of described the second infrared channel is sent to described parameter module is set.
Described infrared parameter setting method, wherein, in described step B2, described in the parameter that prestores comprise the IR parameters of described the first infrared channel.
Described infrared parameter setting method, wherein, in described step C, described parameter arranges module and arranges according to the IR parameters information of the second infrared channel infrared emission wavelength and the carrier modulation frequency of infrared signal that described infrared transmission module is launched, and described infrared transmission module is the IR parameters transmission field sync signal to arrange by the second infrared channel.
Described infrared parameter setting method, it also comprises step:
D. by the second infrared channel, described field sync signal is sent to 3D glasses;
E., operation wavelength and carrier frequency parameter that 3D glasses are set, make it identical with carrier modulation frequency with the infrared emission wavelength of infrared signal that described infrared transmission module is launched, and completes genlocing.
Above-mentioned multi-channel infrared system has been avoided the interference of lasting 3D synchronizing signal of launching to the machine remote control system and other infrared receiving set in real time, simultaneously, 3D glasses also can, because of the operation of the machine and miscellaneous equipment Infrared remote controller, not cause 3D glasses operation irregularity, and impact is normally watched.
Brief description of the drawings
Fig. 1 is the structural representation of multi-channel infrared system preferred embodiments of the present invention;
Fig. 2 is the flow chart of the infrared signal method to set up preferred embodiments of multi-channel infrared system of the present invention;
Fig. 3 is wavelength-relative spectral radiant power characteristic curve schematic diagram of infrared transmitting set;
Fig. 4 is the wavelength-optical receiver sensitivity curve synoptic diagram relatively of infrared receiving set;
Fig. 5 is carrier wave-receiving sensitivity characteristic curve schematic diagram of infrared receiving set.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Technical scheme provided by the invention is: by multiple infrared emission and receive path in same equipment are configured respectively to different infrared emission wavelength and carrier modulation frequency, make in spectrum and carrier frequency, to distinguish and come between each infrared emission and receive path, thereby avoid interfering with each other.
With reference to figure 1, multi-channel infrared system preferred embodiments of the present invention is a 3D TV 10, described 3D TV 10 comprises processor 12, infrared receiving module 14, parameter arranges module 16 and infrared transmission module 18, described infrared receiving module 14 receives by infrared channel 1 infrared signal that remote controller 20 sends, and the information of acquisition is sent to processor 12, described infrared transmission module 18 sends infrared signal by infrared channel 2 to 3D glasses 30, the field sync signal of 3D TV 10 is sent to 3D glasses 30, described parameter arranges module 16 and arranges under the control of processor 12 parameter of the infrared signal that described infrared transmission module 18 sends, it is the parameter of described infrared channel 2, described IR parameters comprises infrared emission wavelength X and carrier modulation frequency f.
In preferred embodiments of the present invention, described parameter arranges module 16 and only under the control of processor 12, arranges the infrared signal parameter of described infrared transmission module 18, as other execution mode, described parameter arranges module 16 the infrared signal parameter of described infrared receiving module 14 also can be set under the control of processor 12, or by different parameters, module is set respectively the IR parameters of infrared receiving module 14 and infrared transmission module 18 is arranged.
Continue with reference to figure 2, the infrared parameter setting method of described 3D TV 10 comprises: step S1, the IR parameters of 3D glasses 30 is set by remote controller 20,, input the IR parameters information of described infrared channel 2 by remote controller 20, after being encoded, send to 3D TV 10 by infrared channel 1, the infrared receiving module 14 of 3D TV 10 obtains the infrared signal that remote controller 20 sends the IR parameters information that demodulates infrared channel 2; Step S2, judge whether disturb,, the processor 12 of 3D TV 10 obtains the IR parameters information of infrared channel 2 and compares with the parameter that prestores from infrared receiving module 14, the parameter that prestores comprises the IR parameters of infrared channel 1, if identical for disturbing, return to step S1, otherwise continue execution step S3; Step S3,3D TV 10 send infrared signal with the IR parameters arranging,, module 16 is set is arranged according to the IR parameters information of infrared channel 2 infrared emission wavelength and the carrier modulation frequency of infrared signal that described infrared transmission module 18 is launched by parameter, described infrared transmission module 18 is the IR parameters transmission field sync signal to arrange by infrared channel 2; Step S4, startup 3D glasses 30, make its Lookup protocol receive parameter and receive infrared signal, and described reception parameter comprises operation wavelength and the carrier frequency of 3D glasses 30; Step S5, judge that whether 3D glasses 30 are synchronous, that is, whether the operation wavelength that relatively 3D glasses 30 arrange is identical with carrier modulation frequency with the infrared emission wavelength of infrared channel 2 with carrier frequency, is to enter step S6, otherwise returns to step S4 Reparametrization; Step S6, complete genlocing.
In addition, in described step S2, described in the parameter that prestores also comprise the IR parameters of other housed device infrared systems, to avoid 3D glasses 30 to disturb in the course of the work the normal use of other household electrical appliances.
In preferred embodiment of the present invention, remote controller 20, owing to adopting code modulation mode intermittent transmission, is difficult for causing the interference to other infrared equipment, therefore, can select conventional wavelength and transmit frequency, the infrared emission wavelength and the carrier modulation frequency that are fixedly installed infrared channel 1 are λ
1and f
1; And infrared transmission module 18 is because continuing in real time transmitting, easily cause the interference to other infrared equipment and remote controller 10, select the wavelength and the carrier frequency λ that are different from the former
2and f
2, by remote controller 10(infrared channel 1), processor 12 and parameter arrange module 16 and switch setting, to reduce the interference of infrared channel 2 to other infrared channel.
Continuation is with reference to figure 3 to Fig. 5, and in Fig. 3, wavelength-relative spectral radiant power characteristic curve of infrared transmitting set shows, along with departing from selected infrared emission wavelength X
0far away, its spectral radiant power is lower, until there is no energy emission; The wavelength of infrared receiving set in Fig. 4-optical receiver sensitivity curve shows relatively, in selected infrared reception wavelength X
0effective range of receiving outside, its receiving sensitivity reduces very soon; In Fig. 5, carrier wave-receiving sensitivity characteristic curve of infrared receiving set shows, along with departing from selected infrared reception carrier f
0far away, the minimized radiation intensity that receiving equipment needs is larger.
Understand the characteristic of above-mentioned Fig. 3 to Fig. 5 curve, can be by material and circuit parameter be adjusted, obtain suitable IR parameters, for infrared emission and reception, thereby can in remote controller 20, preset the optional IR parameters of many groups, facilitate user to select the IR parameters of infrared channel 2.
Above-mentioned multi-channel infrared system and infrared parameter setting method thereof have been avoided the interference of lasting 3D synchronizing signal of launching to the machine remote signal and other infrared receiving set in real time, simultaneously, 3D glasses also can not cause operation irregularity because of the operation of the machine and miscellaneous equipment Infrared remote controller, and impact is normally watched.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection range of claims of the present invention.
Claims (10)
1. a multi-channel infrared system, comprises the infrared receiving module that receives infrared signal by the first infrared channel, it is characterized in that: described multi-channel infrared system also comprises that at least one infrared transmission module and the parameter corresponding with it arrange module; Described infrared transmission module is for sending infrared signal by the second corresponding infrared channel, and described parameter arranges module for the IR parameters of corresponding the second infrared channel of infrared transmission module is set;
Wherein:
Described infrared receiving module obtains the IR parameters configuration information of the second infrared channel by the infrared signal of the first infrared channel transmission;
Described parameter arranges module in the time that the IR parameters of described the second infrared channel is disturbed existing infrared signal, resets the IR parameters of described the second infrared channel;
In the time that the IR parameters of described the second infrared channel is not disturbed existing infrared signal, described parameter arranges module the IR parameters of described the second infrared channel is set according to the IR parameters configuration information of the second infrared channel, and transmits infrared signal by the second infrared channel with the IR parameters arranging by described infrared transmission module.
2. multi-channel infrared system according to claim 1, is characterized in that: described multi-channel infrared system is also arranged module or another parameter and module is set arranges the IR parameters of described the first infrared channel by described parameter.
3. multi-channel infrared system according to claim 1, it is characterized in that: described multi-channel infrared system is 3D TV, comprise by the first infrared channel and receive the infrared receiving module, processor of infrared signal that remote controller sends, to the 3D glasses transmission infrared transmission module of field sync signal and the parameter of a correspondence, module be set by the second infrared channel, described parameter arranges module and arranges under the control of processor the IR parameters of described the second infrared channel.
4. multi-channel infrared system according to claim 3, it is characterized in that: described infrared receiving module obtains the IR parameters configuration information of described the second infrared channel from remote controller by the first infrared channel, processor arranges module and arranges the IR parameters of infrared signal that described infrared transmission module is launched according to parameter described in the control of described IR parameters configuration information, described IR parameters comprises infrared emission wavelength and carrier modulation frequency.
5. an infrared parameter setting method for multi-channel infrared system, described multi-channel infrared system comprises that receiving infrared receiving module, at least one infrared transmission module and the parameter corresponding with it of infrared signal by the first infrared channel arranges module; Described infrared transmission module is for sending infrared signal by the second corresponding infrared channel, described parameter arranges module for the IR parameters of corresponding the second infrared channel of infrared transmission module is set, it is characterized in that, this infrared parameter setting method comprises the following steps:
A. obtain the IR parameters configuration information of the second infrared channel by the infrared signal of the first infrared channel transmission;
Whether the IR parameters that B. judges described the second infrared channel disturbs existing infrared signal, is to reset, otherwise continues step C;
C., the IR parameters of described the second infrared channel is set, the IR parameters transmission infrared signal of the second infrared channel to arrange according to the IR parameters configuration information of the second infrared channel.
6. infrared parameter setting method according to claim 5, described multi-channel infrared system is 3D TV, comprise by infrared receiving module, processor, infrared transmission module and the parameter of the first infrared channel reception infrared signal that remote controller sends module is set, described parameter arranges module and arranges under the control of processor the IR parameters of described the second infrared channel, it is characterized in that: described steps A specifically comprises:
A1. input the IR parameters information of described the second infrared channel by remote controller, after being encoded, send by the first infrared channel;
The infrared receiving module of A2.3D TV obtains the infrared signal of remote controller transmission and demodulates the IR parameters information of the second infrared channel.
7. infrared parameter setting method as claimed in claim 6, is characterized in that: described step B specifically comprises:
The processor of B1.3D TV obtains the IR parameters information of the second infrared channel from infrared receiving module;
Whether the IR parameters information that B2. judges described the second infrared channel is identical with the parameter that prestores, the identical IR parameters of re-entering described the second infrared channel by remote controller is different the IR parameters information of described the second infrared channel is sent to described parameter module is set.
8. infrared parameter setting method according to claim 7, is characterized in that: in described step B2, described in the parameter that prestores comprise the IR parameters of described the first infrared channel.
9. infrared parameter setting method according to claim 7, it is characterized in that: in described step C, described parameter arranges module and arranges according to the IR parameters information of the second infrared channel infrared emission wavelength and the carrier modulation frequency of infrared signal that described infrared transmission module is launched, and described infrared transmission module is the IR parameters transmission field sync signal to arrange by the second infrared channel.
10. infrared parameter setting method according to claim 9, it also comprises step:
D. by the second infrared channel, described field sync signal is sent to 3D glasses;
E., operation wavelength and carrier frequency parameter that 3D glasses are set, make it identical with carrier modulation frequency with the infrared emission wavelength of infrared signal that described infrared transmission module is launched, and completes genlocing.
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| CN102589407A (en) * | 2012-02-27 | 2012-07-18 | 哈尔滨海太精密量仪有限公司 | Alternating-current energized multi-channel inductance type micro displacement sensor signals anti-jamming method |
| CN107360415A (en) * | 2017-09-05 | 2017-11-17 | 信利光电股份有限公司 | A kind of method and device interfered between solution 3D visual apparatus |
| CN108881891A (en) * | 2018-07-16 | 2018-11-23 | 深圳市未来感知科技有限公司 | The eyeglass control method of 3D glasses and 3D glasses |
| CN111354115B (en) * | 2018-12-20 | 2022-01-18 | 天地融科技股份有限公司 | On-site programmable gate array FPGA (field programmable Gate array) equipment for infrared access control management |
| CN109597533A (en) * | 2019-01-09 | 2019-04-09 | 业成科技（成都）有限公司 | Three-dimensional touch device |
| 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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| JP3182315B2 (en) * | 1995-05-15 | 2001-07-03 | 三洋電機株式会社 | 3D video playback device |
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| CN2932828Y (en) * | 2005-10-26 | 2007-08-08 | 深圳Tcl新技术有限公司 | An infrared-based display equipment control device |
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| CN201397574Y (en) * | 2009-04-21 | 2010-02-03 | 西安迅腾科技有限责任公司 | Data acquisition and transmission instrument with infrared remote control function |
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