CN101452643B - Learning type infrared remote-controller - Google Patents
Learning type infrared remote-controller Download PDFInfo
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- CN101452643B CN101452643B CN2007101714494A CN200710171449A CN101452643B CN 101452643 B CN101452643 B CN 101452643B CN 2007101714494 A CN2007101714494 A CN 2007101714494A CN 200710171449 A CN200710171449 A CN 200710171449A CN 101452643 B CN101452643 B CN 101452643B
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Abstract
The invention discloses a learning-oriented infrared remote controller, which comprises an infrared transmitting device, an infrared receiving device, a memory, a keystroke operating device and a singlechip, wherein the infrared transmitting device, the infrared receiving device, the memory and the keystroke operating device are connected with the singlechip respectively; the infrared receiving device receives infrared transmitting signals of the remote controller required to be learnt, converts the infrared transmitting signals into square wave signals, and inputs the square wave signals into the singlechip; the singlechip identifies the code pattern of the received square wave signals through a timing program and an identification code identification program in the singlechip, compresses obtained data signals, and stores the data signals into the memory; and the infrared transmitting device reads signals which are decompressed by the singlechip and subjected to data processing according to code pattern marks from the memory, and transmits the signals. The learning-oriented infrared remote controller can perform learning, carrier wave and tracking on various turnover codes of the infrared transmitting signals of the remote controller required to be learnt, so as to effectively improve the learning ability of the learning-oriented infrared remote controller.
Description
Technical field
The present invention relates to a kind of electronic information control device, the Infrared remote controller of particularly a kind of tool turnover codes study and carrier track function.
Background technology
At present, set-top box uses popularity to improve, many cities have begun the use of digital TV network, but the replacing of considering TV is so not fast, so the set-top box short time becomes focus, set-top box remote controller also becomes essential product, thereby and possesses the study remote controller that learning functionality reaches the two-in-one complex function of set-top box+TV remote-control and become main flow.But there is defective in various degree in telepilot scheme in the market, lays particular stress on the remote control mode waveshape learning, lacks the comprehensive judgement to the sign indicating number type, thereby for RC5, RC6, turnover codes type learning abilities such as M4003 a little less than, and can not be fully up to expectations aspect carrier wave study.
Therefore our telepilot that need develop a kind of tool turnover codes study and carrier track ability solves the problem of current appearance.
Summary of the invention
In order to solve the problem that prior art exists, the invention provides a kind of learning type infrared remote-controller with turnover codes study and carrier track ability.
The present invention can be solved by the following technical programs:
A kind of learning type infrared remote-controller, comprise infrared emission and infrared receiving device, storer, key operation device, single-chip microcomputer, and infrared emission, infrared receiving device, storer, key operation device are connected with single-chip microcomputer respectively, infrared receiving device wherein, it receives the infrared emission signal of the telepilot that needs study, and be converted into the square-wave signal of being with carrier wave, be input to single-chip microcomputer; Single-chip microcomputer carries out a yard type identification through its inner timing program, identification code recognizer to this signal to the square-wave signal that receives, and after the gained data-signal compressed, it is stored in the storer; Infrared launcher reads from storer through single-chip microcomputer and decompresses, and carries out signal after the data processing according to the sign indicating number phenotypic marker, and it is sent out.
Identification code recognizer of the present invention comprises analyzing by the temporal information that obtains behind the timing program, and with eigenwert relatively, confirming the turnover codes model, and the flip bit of turnover codes is converted to 0.
When timing program of the present invention is included in second group of duplication code of the infrared emission signal that receives the telepilot that needs study, carrier wave to the high level of the infrared emission signal of first telepilot that need learn is counted, and calculates carrier cycle numerical value.
Timing program of the present invention uses common 8 bit timing devices, also can use 8 CCP/PWM timers.
Singlechip chip model of the present invention is CS8R01, also can adopt CS8K01.
Storer of the present invention is external EEPROM.
Owing to adopt above technical scheme, telepilot of the present invention can be learnt most TV remote-control sign indicating numbers, there are 35 kinds through what test at present, comprise width modulation sign indicating number and phase modulation (PM) sign indicating number, turnover codes such as RC5, RC6-MO, RC6-M6, M3004, THOMSON, the more special sign indicating number types of encoding ratio such as 708 pulse codes and IX0773, RCA-01, the longest study 160 bit codes, from 20KHz to 60KHz, error is less than 2% to the tracking of carrier wave, and needs only 64 bytes of the data of preserving.
Description of drawings
Fig. 1 is apparatus of the present invention block scheme;
Fig. 2 is turnover codes study part process flow diagram of the present invention;
Fig. 3 is a carrier track part process flow diagram of the present invention.
Embodiment
With reference to the accompanying drawings the present invention is further described below:
As shown in Figure 1, a kind of learning type infrared remote-controller, comprise infrared launcher 2, infrared receiving device 1, storer 4, key operation device 5, single-chip microcomputer 3, and infrared launcher 2, infrared receiving device 1, storer 4, key operation device 5 are connected with single-chip microcomputer 3 respectively, wherein infrared receiving device 1, it receive to need the infrared emission signal of the telepilot of study, and is converted into square-wave signal and is input to single-chip microcomputer 3; Single-chip microcomputer 3 carries out a yard type identification through its inner timing program, identification code recognizer to this signal to the square-wave signal that receives, and after the gained data-signal compressed, it is stored in the storer 4; Infrared launcher 2 reads from storer 4 through single-chip microcomputer 3 and decompresses, and carries out signal after the data processing according to the sign indicating number phenotypic marker, and it is sent out.The singlechip chip model is CS8R01, also can adopt CS8K01.Storer adopts external EEPROM among the present invention.
As shown in Figure 2, when carrying out turnover codes study, infrared receiving device 1 receives the infrared emission signal of the telepilot that needs study, be input to single-chip microcomputer 3 after being converted into square-wave signal, in single-chip microcomputer 3 by the temporal information of timing program gained is analyzed, relatively confirm the turnover codes model according to eigenwerts such as code length, high-low level number and time spans, in the storage data, have a byte to place turnover codes model data specially.In addition, flip bit may also may be 1 for 0 in the data of acquiring, and terse for launching procedure need be converted to a kind of when storage, is 0 in this scheme.In launching procedure, the emitting times variable is set, change the flip bit of turnover codes according to the parity of this variable, the mode that the position of turnover codes and data change obtains by turnover codes model data.
As shown in Figure 3, carrier track solves by following program in the CS8R01 scheme: infrared receiving device 1 is counted the carrier wave of first high level when second group of duplication code of the infrared emission signal that receives the telepilot that needs study, and first high level time with first group of duplication code of the infrared emission signal of the telepilot that need learn finishing after obtains cycle numerical value divided by count value.And dutycycle is not done metering, is fixed as 1/2.This mode is inoperative for the sign indicating number type of not sending out duplication code, and can only carrier frequency be set to the most frequently used 38KHz this moment.Because timing and counting process all need software that pin level is judged, unavoidably can produce error, have only that to measure ability when the carrier wave count value is big more accurate.Use timer 1 to produce carrier wave in addition when emission, its clock is a cpu clock, and when using the 4M crystal oscillator, each carrier cycle error is that 1us is to 2us.
Carrier track mainly solves by hardware in the CS8K01 scheme, 8 CCP/PWM timers of a special use in control chip, have been designed, when being set to the CCP pattern, can capture the cycle and the dutycycle of a square wave, and after one-period is finished, just stop, not influenced by waveform subsequent.This mode only needs software overhead seldom just can learn to follow the tracks of carrier frequency, can not produce the problem of study less than carrier wave, also can not produce error because of software.In order to improve precision, the clock of this timer is the crystal oscillator clock, does not pass through frequency division, and error in dipping is 0.25us when using the 4M crystal oscillator, and timer is set to PWM mode producing carrier wave during emission, does not produce the error increment.
For conserve memory, the learning remote control sign indicating number had only for the first bit code time directly stored, carry out encoding compression since second bit code, each timing finishes, all compare with the standard time of preserving in the past, in error range (± 64us) preserve the standard time sequence number, go beyond the scope and then set up the new standard time.Consider actual remote control coding rule, high-low level time substantially all is no more than 4 kinds, thereby only need preserve the 2bit compressed code.Receiving course is handled data after finishing.Except type is made accurate judgment, also need to carry out consolidation, and be 0 yard the flip bit unification to time data.The sign indicating number type handles laggard line time calibration, compression and duplication code is handled, be to save storage space, except that the recurrence interval the time all the other chronomeres be compressed to 16us.Final data is compressed to 64 bytes, writes external EEPROM.
Above embodiment is the unrestricted technical scheme of the present invention in order to explanation only.Any modification or partial replacement that does not break away from spirit and scope of the invention all should be encompassed in the middle of the claim scope of the present invention.
Claims (5)
1. a learning type infrared remote-controller is characterized in that, comprises infrared emission and infrared receiving device, storer, key operation device, single-chip microcomputer, and infrared emission, infrared receiving device, storer, key operation device be connected with single-chip microcomputer respectively, wherein
Infrared receiving device, it receives the infrared emission signal of the telepilot that needs study, and is converted into the square-wave signal of band carrier wave, is input to single-chip microcomputer;
Single-chip microcomputer carries out a yard type identification through its inner timing program, identification code recognizer to this signal to the square-wave signal that receives, and after the gained data-signal compressed, it is stored in the storer;
Infrared launcher reads from storer through single-chip microcomputer and decompresses, and carries out signal after the data processing according to the sign indicating number phenotypic marker, and it is sent out.
2. a kind of learning type infrared remote-controller according to claim 1, it is characterized in that, described identification code recognizer comprises analyzing by the temporal information that obtains behind the timing program, and with code length, high-low level number and time span combination in one or several eigenwerts relatively, confirming the turnover codes model, and the flip bit of turnover codes is converted to 0.
3. a kind of learning type infrared remote-controller according to claim 1 and 2, it is characterized in that, when described timing program is included in second group of duplication code of the infrared emission signal that receives the telepilot that needs study, carrier wave to first high level of described second group of duplication code is counted, and calculates carrier cycle numerical value.
4. a kind of learning type infrared remote-controller according to claim 1 and 2 is characterized in that, described timing program uses the CCP pattern of 8 bit timing devices.
5. a kind of learning type infrared remote-controller according to claim 1 and 2 is characterized in that, described timing program uses 8 PWM timers.
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| CN2007101714494A CN101452643B (en) | 2007-11-30 | 2007-11-30 | Learning type infrared remote-controller |
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| CN2007101714494A CN101452643B (en) | 2007-11-30 | 2007-11-30 | Learning type infrared remote-controller |
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| CN101452643B true CN101452643B (en) | 2010-12-08 |
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| CN102063785B (en) * | 2010-11-12 | 2013-03-13 | 四川长虹电器股份有限公司 | Method for automatically emitting infrared remote control signals and system thereof |
| CN103426290B (en) * | 2013-07-18 | 2016-12-28 | 惠州市和易科技有限公司 | A kind of intelligent remote controller coding theory learning method |
| CN103426292B (en) * | 2013-09-03 | 2015-11-11 | 湖南工业大学 | A kind of Infrared remote controller and infrared coding learning method, launching technique |
| CN105281777B (en) * | 2014-07-04 | 2018-09-18 | Tcl集团股份有限公司 | A kind of compression method, system and the remote controler of remote controler learning data |
| CN105355032B (en) * | 2014-08-22 | 2019-06-04 | 无锡华润矽科微电子有限公司 | It is built-in can repeatedly programmable memory learning-oriented remote-control circuit structure and learning method |
| CN105894792A (en) * | 2014-12-02 | 2016-08-24 | 无锡比益特科技有限公司 | Studying and encoding method for efficient infrared remote control |
| CN105959752A (en) * | 2016-04-29 | 2016-09-21 | 镇江惠通电子有限公司 | Terminal and remote control terminal matching method and device, and remote control terminal |
| CN105957332A (en) * | 2016-06-30 | 2016-09-21 | 北京海尔广科数字技术有限公司 | Method for learning and using infrared remote controller codes and learning type remote controller |
| CN106097701A (en) * | 2016-07-29 | 2016-11-09 | 无锡思泰迪半导体有限公司 | A kind of infrared chip test platform based on FPGA |
| CN106679107B (en) * | 2017-01-10 | 2019-01-29 | 珠海格力电器股份有限公司 | Air conditioning control method and device |
| CN106781425A (en) * | 2017-01-18 | 2017-05-31 | 福建省光速达物联网科技股份有限公司 | A kind of method of IR remote controller Signal Compression storage |
| CN107730868A (en) * | 2017-09-11 | 2018-02-23 | 深圳市劳沃智能科技有限公司 | The compression and storage method and device of infrared learning coded data |
| CN109709837A (en) * | 2018-11-23 | 2019-05-03 | 上海琪埔维半导体有限公司 | A kind of data processing method suitable for singlechip chip |
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Address after: 214135 -6, Linghu Avenue, Wuxi Taihu international science and Technology Park, Wuxi, Jiangsu, China, 180 Patentee after: China Resources micro integrated circuit (Wuxi) Co., Ltd Address before: 301 room 214000, information industry zone, Wuxi New District, Jiangsu Patentee before: WUXI CHINA RESOURCES SEMICO Co.,Ltd. |
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