CN102881151A - Remote controller detection method - Google Patents
Remote controller detection method Download PDFInfo
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- CN102881151A CN102881151A CN2012103581962A CN201210358196A CN102881151A CN 102881151 A CN102881151 A CN 102881151A CN 2012103581962 A CN2012103581962 A CN 2012103581962A CN 201210358196 A CN201210358196 A CN 201210358196A CN 102881151 A CN102881151 A CN 102881151A
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Abstract
The invention relates to a remote controller detection method, which comprises a step of comparing a to-be-detected signal waveform of an infrared signal emitted by a to-be-detected remote controller key with an engineering signal waveform of an infrared signal emitted by an engineering prototype key. According to the remote controller detection method, a communication protocol of a remote controller product is not required to be foreseen, and a high-speed and simultaneous multi-channel automatic comparison test can be conveniently implemented by computer programming through software. The test precision is greatly improved, the cost is low, the production is facilitated, the popularization of the automatic production of remote controllers is greatly promoted, and obvious social benefit is generated.
Description
Technical field
The present invention relates to a kind of telepilot detection method.
Background technology
Telepilot mainly is comprised of the microprocessor chip that forms remote signal, crystal oscillator, amplifier transistor, infrarede emitting diode and keyboard matrix.It is mainly by the oscillator of microprocessor chip inside and outside high frequency oscillator of oscillating crystal composition, produce high-frequency oscillation signal (such as 455KHz or 480kHz), this signal is sent into sinusoidal signal and the timing pulse signal that produces a carrier signal (frequency is 38KHz or 56KHZ etc.) behind the timing generator: sinusoidal signal is sent into coding demodulator as carrier signal, and timing pulse signal is as the time standard signal of these circuit.The sweep generator of microprocessor chip inside produces the scanning pulse signal of multiple different time, delivers to keyboard matrix circuit by several feet output.When pressing a certain key, be input to the keying scrambler by other several feet respectively corresponding to the control signal of this function button, the digital signal of output corresponding function.Then by referring to scrambler output order coded signal, on carrier signal, form the high-frequency pulse string that includes function information through modulators modulate, output is amplified through transistor, promotes infrared light-emitting diode and launches pulse-modulated signal.
When traditional telepilot is produced in batches and need to detect, at first need to predict the Signal coding mode of tested telepilot or remote-control communication agreement (such as the high-low level width of preamble code, the high-low level width of logical signal 1 and logical signal 0, and the level width of stop bit etc.), after tester receives tested remote controller signal, coded system according to precognition is decoded, and then judgement test result, so qualitatively judgement that test result only has code value that mistake or signal are had or not, the user can only preset the restriction of decoding error precision, but the deviation result that can't quantitatively show test signal easily produce erroneous judgement, and detection speed is slow, be difficult to realize the robotization batch testing, need of production is artificial in a large number, the most important thing is that versatility is not strong, can't do correct identification and test to the telepilot of not clear coded system.
Therefore, manufacturer needs refresh test software or testing apparatus to come the telepilot product of the new communication protocol of Test Application, thereby affects production cycle, labor intensive and material resources.
Summary of the invention
Primary and foremost purpose of the present invention is to provide a kind of communication protocol that need not to predict the telepilot product, has greatly improved again the telepilot detection method of measuring accuracy, and concrete scheme of the present invention is as follows:
A kind of telepilot detection method, the measured signal by infrared signal that remote controller key to be measured is launched comprise that the Engineering Signal waveform of each signal waveform such as preamble code, user code, numeric data code, end code and engineering prototype infrared signal that button is launched compares.
Preferably, described measured signal waveform is generated by comprise each signal high-low level such as preamble code, user code, numeric data code, end code and the time length of infrared signal that remote controller key to be measured is launched.
Described Engineering Signal waveform is comprised that by infrared signal that the engineering prototype button is launched the high-low level of each signal such as preamble code, user code, numeric data code, end code and time length generate.
Preferably, measured signal waveform and Engineering Signal waveform comprise the high-low level waveform Width pair of each signal such as preamble code, user code, numeric data code, end code.
Telepilot detection method provided by the invention has following several large advantage:
1. can appoint easily computer realization hyperchannel ground and under user-programmable control, automatically test four or many telepilots simultaneously, reach the earth and improved production efficiency, effectively save artificial.(relatively traditional-handwork test can be saved 3 to 4 Manufacturing Workers.）
2. this invention example is also realized automatic keying action with the application machine hand, the automatic test action that under computer control, realizes, can and the earth improved produce in the reliability of quality control.
3. this invention example is also used visual programming simultaneously, can user-friendlyly use, and shares programming and test data.
4. this invention example is finished processing and the demonstration of test data by computer, and the earth simplified the structure of production equipment, is easy to maintenance and maintenance.
5. because adopt the mode of waveform comparison to test the push button signalling of telepilot, the test of the compatible most telepilots of this invention example greatly reduces device upgrade that manufacturer brings because of replacement of products or upgrading or the spending of increasing purchase.
6. use the telepilot detection method that the present invention researches and develops, cost is low, easily produces, can greatly promote telepilot produce in automated production popularization with popularize, produce obvious social benefit.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, does not consist of to improper restriction of the present invention, in the accompanying drawings:
Fig. 1 is the sampling of embodiment of the invention push button signalling and processing electrical schematic diagram;
Fig. 2 is the typical uPD6122 signal mode figure behind the embodiment of the invention reception ﹠ disposal;
Fig. 3 is embodiment of the invention logic diagram.
Embodiment
Describe the present invention in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the present invention in this illustrative examples of the present invention and explanation, but not as a limitation of the invention.
Embodiment
Such as Fig. 1 ~ shown in Figure 3, the telepilot detection method may further comprise the steps:
Step1: engineering prototype signal sampling.As shown in Figure 1, the infrared signal of each button that the optical fiber Receiver receives the telepilot engineering prototype to infrared receiving tube, can obtain the signal integrity waveform that telepilot is launched by Optical Fiber Transmission after the filtering.
Step2: the waveform signal of infrared receiving tube is sent into MCU process, the time span result of each high-low level is transferred to computer by the compunlcation serial ports, also the waveform signal of infrared receiving tube directly directly can be read in computer by the compunlcation parallel port by user software, drawn again the high-low level time length of each signal bits by the user software analysis, signal waveform and related data after user software processes are shown to the user, and in the file that duration and the relevant parameters of every signal is kept at setting, so that it is for subsequent use to make project data during follow-up test.
The push button signalling sample circuit is not limited only to reception and the processing of infrared signal in the device of the embodiment of the invention, only needs to upgrade accept circuit, can receive equally and processes radio frequency (RF) signal, and test is identical with disposal route and infrared signal.
Fig. 2 is the typical uPD6122 signal mode figure behind the reception ﹠ disposal:
Take the uPD6122 signal as example, each waveform signal data that computer obtains have 32 signal bits and 67 wide data of ripple, mainly divide following components:
-preamble code, 2 Wave datas (D0H/D0L): 9000us/4500us
-user code, 16 32 data (D1H/D1L～D16H/D16L): 560us/560us(usually is called logical signal 0) or 560us/1680us(usually are called logical signal 1)
-numeric data code, 16 32 data (D17H/D17L～D32H/D32L): 560us/560us(usually is called logical signal 0) or 560us/1680us(usually are called logical signal 1)
-position of rest, 1 data (D33H): 560us;
Step3: the method same with Step1 and Step2, the infrared signal that each button of telepilot to be measured is launched generates the measured signal waveform with high-low level and time length;
Step4: Engineering Signal waveform and measured signal waveform are compared, and make final conclusion and be shown to the user:
If the waveform width of engineering prototype telepilot is Dn', the waveform width of tested telepilot is Dn, test result then, if the different wave shape number percent after comparing is counted Rn, then:
Rn=（Dn-Dn')/Dn'*100%
When R exceeded user's setting value, program can be sent the demonstration that reports an error, and display module display standard signal and signal-under-test waveform show and compare synoptic diagram that the misdata position is shown in red.Test result directly intuitively shows by computer display screen in the device of the embodiment of the invention.
Show that the result mainly contains following important parameter:
1. the difference percentage of the duration (D0') of the duration of the preamble code of tested test-run a machine (being first code) high-low level (be made as D0, unit is microsecond us) and model machine preamble code high-low level (such as a plurality of telepilots of multiple channel test, then dividing a plurality of passages to show).The mathematic(al) representation of its number percent is:
R0=(D0-D0')/D0'*100%
Selecting first code to make comparisons mainly is to consider that the wavelength of first code is longer, can greatly increase the judged result precision, and namely denominator D0' is larger in the following formula, and number percent is more accurate.Take uPD6122 as example, the wavelength of first code is: D0H+D0L=13500us.Then the theoretical precision of test result is 1/13500.Realistic accuracy can be easy to control in 0.1%.The demand (peak demand is in 1%) that is higher than the user far away, also far above existing decoding technique test infrared signal, its fault-tolerant number percent even up to 20%, classic method only has by carrier test just can reach 1% with interior precision, but need newly-increased instrument, and lost labor.
2. waveform shows the correctness of each, and errors excepted the position then shows in the display screen differentiation with red waveform.
3. show the item of corresponding bad button, or graphically show the position of bad button.
4. such as a plurality of telepilots of multiple channel test, then can graphically show corresponding bad passage, i.e. the location number of bad telepilot.
More than technical scheme that the embodiment of the invention is provided be described in detail, having used specific case herein sets forth principle and the embodiment of the embodiment of the invention, the explanation of above embodiment is only applicable to help to understand the principle of the embodiment of the invention, and other are equal to the scope that medicinal, food, health care liquid bottles, structure roughly the same all should belong to this patent; Simultaneously, for one of ordinary skill in the art, according to the embodiment of the invention, all will change on embodiment and range of application, in sum, this description should not be construed as limitation of the present invention.
Claims (4)
1. telepilot detection method is characterized in that:
Compare by the measured signal waveform of infrared signal that remote controller key to be measured is launched and the Engineering Signal waveform of engineering prototype infrared signal that button is launched.
2. a kind of telepilot detection method as claimed in claim 1 is characterized in that:
Described measured signal waveform is generated by high-low level and the time length of infrared signal that remote controller key to be measured is launched;
Described Engineering Signal waveform is generated by high-low level and the time length of engineering prototype infrared signal that button is launched.
3. a kind of telepilot detection method as claimed in claim 2 is characterized in that:
Measured signal waveform and Engineering Signal waveform carry out waveform Width pair.
4. a kind of telepilot detection method as claimed in claim 3 is characterized in that:
Measured signal waveform and Engineering Signal waveform carry out user code waveform Width pair.
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| CN2012103581962A CN102881151A (en) | 2012-09-24 | 2012-09-24 | Remote controller detection method |
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| CN2012103581962A CN102881151A (en) | 2012-09-24 | 2012-09-24 | Remote controller detection method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240492A (en) * | 2014-09-26 | 2014-12-24 | 深圳市中兴移动通信有限公司 | Method, device and terminal for debugging infrared remote control signals |
| CN109270400A (en) * | 2018-11-01 | 2019-01-25 | 深圳创维数字技术有限公司 | The test circuit of infrared receiving terminal |
| CN110308321A (en) * | 2019-07-05 | 2019-10-08 | 珠海格力智能装备有限公司 | The detection method and device of dynamic current |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571992A (en) * | 2008-04-30 | 2009-11-04 | 杭州士兰微电子股份有限公司 | Systems and method for testing remote controller |
| CN201514442U (en) * | 2009-09-09 | 2010-06-23 | 江苏惠通集团有限责任公司 | Real-time detecting device of remote controller production line products |
-
2012
- 2012-09-24 CN CN2012103581962A patent/CN102881151A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571992A (en) * | 2008-04-30 | 2009-11-04 | 杭州士兰微电子股份有限公司 | Systems and method for testing remote controller |
| CN201514442U (en) * | 2009-09-09 | 2010-06-23 | 江苏惠通集团有限责任公司 | Real-time detecting device of remote controller production line products |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240492A (en) * | 2014-09-26 | 2014-12-24 | 深圳市中兴移动通信有限公司 | Method, device and terminal for debugging infrared remote control signals |
| CN109270400A (en) * | 2018-11-01 | 2019-01-25 | 深圳创维数字技术有限公司 | The test circuit of infrared receiving terminal |
| CN109270400B (en) * | 2018-11-01 | 2021-12-10 | 深圳创维数字技术有限公司 | Test circuit of infrared receiving head |
| CN110308321A (en) * | 2019-07-05 | 2019-10-08 | 珠海格力智能装备有限公司 | The detection method and device of dynamic current |
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Application publication date: 20130116 |