CN101751771B - Infrared control device and method - Google Patents
Infrared control device and method Download PDFInfo
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- CN101751771B CN101751771B CN 200810239311 CN200810239311A CN101751771B CN 101751771 B CN101751771 B CN 101751771B CN 200810239311 CN200810239311 CN 200810239311 CN 200810239311 A CN200810239311 A CN 200810239311A CN 101751771 B CN101751771 B CN 101751771B
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Abstract
The invention provides an infrared control device for a display system, comprising an infrared receiving module, a processing module and a control module, wherein the infrared receiving module is used for receiving a first infrared signal and a second infrared signal and correspondingly generates a first position signal and a second position signal; the processing module is used for generating a direction signal according to the first position signal and the second position signal; and the control module is used for generating a corresponding control signal according to the direction signal, and the control signal is used for controlling the device state. Through the infrared control device and the method, the number of keys of the existing remote controller can be reduced.
Description
Technical field
The present invention relates to the control field, relate in particular to a kind of infrared control device and method.
Background technology
Infrared remote control is to use remote control mode comparatively widely in the present household electrical appliance.The characteristics of infrared remote control are not influence surrounding enviroment, do not disturb other electric equipments.Because it can't penetrate wall, so the household electrical appliance of chummery can not use general telepilot and can not produce the phase mutual interference; Circuit debugging is simple, if errorless according to the given circuit connection, general without any debugging can devoting oneself to work; Encoding and decoding are easy, can carry out multichannel control.Therefore, infrared remote control has obtained using widely in household electrical appliance, indoor closely remote control now.
The infrared remote-control device of multichannel control generally has many buttons, represents different distant control functions.When transmitting terminal was pressed some buttons, correspondingly receiving end had different ground output state.But, increasing along with the IR remote controller control function, the button on the telepilot is also more and more, and various button makes the operability and comfort level reduction of telepilot.It is more and more inconvenient that most people are used, numerous and diverse dirigibility that has also hindered use of function.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of infrared control device and method, can effectively reduce the number of keys on the telepilot.
According to an aspect of the present invention, proposed a kind of infrared control device, it is characterized in that, having comprised: infrared receiving module is used to receive first infrared signal and second infrared signal, corresponding generation primary importance signal and second place signal; Processing module is used for according to primary importance signal and second place signal, produces direction signal; And control module, being used for producing control signal corresponding according to direction signal, this control signal is used for the control to equipment state.
Wherein, infrared receiving module also is used for producing and the corresponding very first time parameter of primary importance signal, and with corresponding second time parameter of second infrared signal.
Wherein, processing module further comprises: the acceleration monitoring unit, be used for according to very first time parameter and primary importance signal, and second time parameter and second place signal, produce acceleration parameter.
Wherein, primary importance signal and second place signal are continuous, or be interrupted.
According to an aspect of the present invention, proposed a kind of infrared control method, having comprised: received first infrared signal, produce the primary importance signal; Receive second infrared signal, produce second place signal; According to primary importance signal and second place signal, produce direction signal; Produce control signal corresponding according to direction signal, control signal is used for the control to equipment state.
Wherein, receive first infrared signal and also comprise, produce and the corresponding very first time parameter of primary importance signal; Receive second infrared signal and also comprise, produce and corresponding second time parameter of second infrared signal.
Wherein, according to very first time parameter and primary importance signal, and second time parameter and second place signal, produce acceleration parameter.
Wherein, primary importance signal and second place signal are continuous, or be interrupted.
The present invention has following technique effect: through responding to ultrared direction of motion, can produce control signal, thereby can effectively reduce on the telepilot corresponding to the button of this control signal, reduce the number of keys of existing telepilot.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Figure 1A and Figure 1B be the work synoptic diagram of infrared control device according to an embodiment of the invention;
Fig. 2 A and Fig. 2 B are the work synoptic diagram of infrared control device according to an embodiment of the invention;
Fig. 3 is the theory diagram of infrared control device according to an embodiment of the invention; And
Fig. 4 is the process flow diagram of infrared control device according to an embodiment of the invention.
Embodiment
With reference to accompanying drawing, specify embodiment of the present invention below.
Figure 1A and Figure 1B are the work synoptic diagram of infrared control device according to an embodiment of the invention.Shown in Figure 1A and Figure 1B, comprise the display system of infrared control device, comprising: display device (such as, televisor) 102; Remote control receives 104, is arranged in display device 102; Infrared control device 106; Telepilot 108.Wherein, certain function key (for example, the channel switching push button) that black box 110 representatives are pressed in telepilot 108, the process that the infrared signal that on behalf of telepilot 108, Figure 1A and Figure 1B sent moves to right from the left side.
Wherein, Switch to example with channel; The performing step of this display system is described: at first when pressing the channel switch bar; Be placed on display device 102 anterior infrared control devices 106 and receive different strong and weak signals (be equivalent to current infrared remote controller signal is carried out to picture, and produce corresponding position signalling); Then, the control head 104 on the display device 102 receives the pulsed modulation control code, judges whether it is the switching channels operation, prevents error code; When mobile remote control device 108 from left to right, the image on the infrared control device 106 (that is, corresponding position signalling) is also changing simultaneously then, and through the direction of judging that image moves, handle, as add channel, otherwise, for subtracting channel.Realize the final switching of channel.
Fig. 2 A and Fig. 2 B are the work synoptic diagram of infrared control device according to an embodiment of the invention.Shown in Fig. 2 A and Fig. 2 B,, as shown in Figure 2: through integrated convex lens 206 in display device 204 fronts with the method for convex lens realization infrared control; Utilize the pinhole imaging system principle; Amplify the variation of the transmission positions of infrared signal on infrared CCD 204 through convex lens 206, the same function of channel etc. that realizes that moves that can scioptics on infrared CCD 204, form images is controlled, in order to realize better receiving infrared-ray signal; CCD has become a face, and length also diminishes accordingly.
Fig. 3 is the theory diagram of infrared control device according to an embodiment of the invention.As shown in Figure 3, infrared control device comprises: infrared receiving module 302 is used to receive the infrared signal that is projeced into the different launching positions on this infrared receiving module 302 that sends from the telepilot (not shown) and produce position signalling; Processing module 304 is used for producing direction signal based on the position signalling from infrared receiving module 302; And control module 306, be used for producing control signal corresponding and exporting control signal based on direction signal from processing module 304.
Wherein, infrared receiving module 302 further produces and the corresponding time parameter of position signalling.
Wherein, Processing module 306 further comprises: acceleration monitoring unit (not shown); Be used for different receiving positions and projection time that infrared signal is projeced on the infrared receiving module 302 are monitored; Obtain the translational speed that infrared signal throws on infrared receiving module 302, and translational speed and parameter preset are compared, when translational speed surpasses parameter preset, produce acceleration control signal.
Wherein, can be continuous between the different infrared signals, perhaps also can be interrupted.When a certain function key of pressing on the telepilot, and when when pushing button, making the transmitting terminal of telepilot streak straight line or curvilinear path, what infrared receiving module received is continuous infrared signal.When certain function key of pressing on the telepilot, and when pressing this function key once more in the threshold value (in processing module, preestablishing this time threshold) at the fixed time, what infrared receiving module received is the infrared signal of being interrupted.
Wherein, this device further comprises, the convex lens (not shown) places said infrared receiving module 302 front ends, the variation that is used to amplify the launching position of at least two infrared signals on infrared receiving module 302.。
Wherein, infrared receiving module 302 is that infrared sensitization receives the CCD device.
As shown in Figure 3, the infrared ray for existing display device in the frame of broken lines receives theory diagram, and the steering order process of sending from telepilot receives, and amplifies, and sends into MCU after the demodulation and handles.And infrared CCD receiver 302 receives infrared signal and produce corresponding position signalling; And export position signalling to processing module 304; For example: when telepilot moves from left to right; Processing module 304 is not stopped receives the position data about telepilot, thus the change direction of movement images (position), and judging image also is after moving from left to right; Send into control module 306 to the direction signal of handling out and handle, control module 306 produces control signal corresponding and exports control signal to MCU based on direction signal and handles.Variation through software processes different time image in last figure can also realize the function of acceleration monitoring, therefore can detect the speed of user's remote controller swing, carries out the quick switching of corresponding function, like quick change loud noise etc.
Fig. 4 is the process flow diagram of infrared control device according to an embodiment of the invention.Be used for the infrared control method of display system, comprise:
Step S402 receives at least two infrared signals that are projeced into the different launching positions on the infrared receiving module that send from telepilot, produces and at least two infrared signals at least two position signallings accordingly;
Step S404, comparison step is used at least two position signallings are compared, and produces direction signal based on result relatively;
Step S406; The acceleration monitoring step; Different receiving positions and projection time at least two infrared signals are projeced on the infrared receiving module are monitored; Obtain the translational speed of infrared signal on infrared receiving module, and translational speed and parameter preset are compared, when translational speed surpasses parameter preset, produce acceleration control signal;
Step S408 produces control signal corresponding based on direction signal, and the output control signal.
As shown in Figure 4, after MCU receives infrared signal, decode; To judge the current operation that will carry out; Inquire about current operation simultaneously and whether need carry out the judgement of infrared ray direction, if do not need, this directly transmits control signal; If desired, this waits for the result of corresponding processing module.Simultaneously, after processing module receives ultrared imaging, simply store and record; The image of constantly relatively receiving simultaneously (promptly; Corresponding position signalling) difference is if after judging the beginning image and having evident difference with the image that receives, deliver MCU to comparative result and handle; MCU accomplishes parsing and transmits control signal the completion single job through final behind the discriminatory analysis.Certainly; Monitor acceleration of motion if desired, the image change speed and the time of can analyzing and processing receiving are simply judged, according to the parameter that pre-sets; MCU is judged need carry out such operation several times, and then realizes functions such as fast channel switching or quick adjustment volume.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. an infrared control device is characterized in that, comprising:
Infrared receiving module is used to receive first infrared signal and second infrared signal, corresponding generation primary importance signal and second place signal;
Processing module; Be used for according to said primary importance signal and said second place signal; Produce direction signal; Said processing module comprises the acceleration monitoring unit, and said acceleration monitoring unit is used for different receiving positions and projection time that infrared signal is projeced on the said infrared receiving module are monitored, and obtains the translational speed that infrared signal is throwed on said infrared receiving module; And said translational speed and parameter preset compared,, said translational speed produces acceleration control signal when surpassing said parameter preset; And
Control module is used for producing control signal corresponding according to said direction signal, and said control signal is used for the control to equipment state.
2. infrared control device according to claim 1 is characterized in that,
Said infrared receiving module also is used for producing and the corresponding very first time parameter of said primary importance signal, and with corresponding second time parameter of said second infrared signal;
The acceleration monitoring unit is used for according to said very first time parameter and said primary importance signal, and said second time parameter and said second place signal, produces said acceleration control signal.
3. infrared control device according to claim 1 is characterized in that, said primary importance signal and said second place signal are continuous, or be interrupted.
4. an infrared control method is characterized in that, comprises step:
Receive first infrared signal, produce the primary importance signal;
Receive second infrared signal, produce second place signal;
According to said primary importance signal and said second place signal, produce direction signal;
Different receiving positions and projection time to infrared signal is projeced on the infrared receiving module are monitored; Obtain the translational speed that infrared signal is throwed on said infrared receiving module; And said translational speed and parameter preset compared,, said translational speed produces acceleration control signal when surpassing said parameter preset;
Produce control signal corresponding according to said direction signal, said control signal is used for the control to equipment state.
5. method according to claim 4 is characterized in that,
Said reception first infrared signal also comprises, produces and the corresponding very first time parameter of said primary importance signal; Said reception second infrared signal also comprises, produces and corresponding second time parameter of said second infrared signal;
According to said very first time parameter and said primary importance signal, and said second time parameter and said second place signal, said acceleration control signal produced.
6. method according to claim 4 is characterized in that, said primary importance signal and said second place signal are continuous, or be interrupted.
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| CN 200810239311 CN101751771B (en) | 2008-12-09 | 2008-12-09 | Infrared control device and method |
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| CN 200810239311 CN101751771B (en) | 2008-12-09 | 2008-12-09 | Infrared control device and method |
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| CN101751771A CN101751771A (en) | 2010-06-23 |
| CN101751771B true CN101751771B (en) | 2012-09-05 |
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| CN102436736B (en) * | 2011-12-31 | 2014-01-08 | 杭州士兰光电技术有限公司 | Infrared receiving head and control board containing same as well as receiving device of infrared remote control system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5617312A (en) * | 1993-11-19 | 1997-04-01 | Hitachi, Ltd. | Computer system that enters control information by means of video camera |
| US6160899A (en) * | 1997-07-22 | 2000-12-12 | Lg Electronics Inc. | Method of application menu selection and activation using image cognition |
| CN101002196A (en) * | 2004-08-10 | 2007-07-18 | 摩托罗拉公司 | User interface controller method and apparatus for a handheld electronic device |
| CN101238428A (en) * | 2005-08-22 | 2008-08-06 | 叶勤中 | Free-space pointing and handwriting |
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2008
- 2008-12-09 CN CN 200810239311 patent/CN101751771B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5617312A (en) * | 1993-11-19 | 1997-04-01 | Hitachi, Ltd. | Computer system that enters control information by means of video camera |
| US6160899A (en) * | 1997-07-22 | 2000-12-12 | Lg Electronics Inc. | Method of application menu selection and activation using image cognition |
| CN101002196A (en) * | 2004-08-10 | 2007-07-18 | 摩托罗拉公司 | User interface controller method and apparatus for a handheld electronic device |
| CN101238428A (en) * | 2005-08-22 | 2008-08-06 | 叶勤中 | Free-space pointing and handwriting |
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