CN103616837B - A kind of remote control record car mould anti-disturbance method of low cost - Google Patents
A kind of remote control record car mould anti-disturbance method of low cost Download PDFInfo
- Publication number
- CN103616837B CN103616837B CN201310640255.XA CN201310640255A CN103616837B CN 103616837 B CN103616837 B CN 103616837B CN 201310640255 A CN201310640255 A CN 201310640255A CN 103616837 B CN103616837 B CN 103616837B
- Authority
- CN
- China
- Prior art keywords
- unit
- chip microcomputer
- instruction
- capture device
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Selective Calling Equipment (AREA)
Abstract
The invention discloses a kind of remote control record car mould anti-disturbance method and circuit of low cost, comprise frequency-selecting amplifying unit, input termination filter unit, signal processing unit and intelligent decoding unit, the input end of described signal processing unit is located on an input pin RXD of single-chip microcomputer U1; Described single-chip microcomputer U1 adopts general single chip; Signal processing unit in described single-chip microcomputer U1 is set as intermittent reception director data mode of operation.Recording acoustics unit is driven to adopt DAC pattern to export the IC driven.Beneficial effect of the present invention is: cost of the present invention is very low, and efficiently solves interference problem, and during long-distance remote control, playback can not the reception of undesired signal.
Description
Technical field
The present invention relates to wireless remote control technology field, particularly relate to a kind of technology being applied to the remote control of toy car mould, particularly car mould anti-disturbance method and circuit are recorded in the remote control of low cost.
Background technology
In prior art, at toy industry, especially in car line industry, manufacturing cost has become the Main Means of numerous manufacturer as competition; Minimize cost and can ensure that product performance index has been the target that everybody competitively pursues.
Commercially comparatively popular remote control can in the car mould of playback sound, prior art is all that wireless remote control IC and record/playback IC is selected PWM output form, there is the problem of playback interference wireless receiving in this output form, makes when playback, can only closely remote control.
Above-mentioned drawback covers with shade to the application prospect of product.
If head it off, the device cost that many high-end applications technology adopt can be high, and this is that this product institute is unallowable.
Summary of the invention
The object of the invention is to remote control record car mould anti-disturbance method and circuit that a kind of low cost is provided for the deficiencies in the prior art, the single-chip microcomputer that technology of the present invention adopts a slice general, price is suitable with former design specialized wireless remote control IC price, DAC mode is selected by change control model and record/playback IC, solve interference problem, during long-distance remote control, playback can not the reception of undesired signal.
For achieving the above object, the present invention is achieved through the following technical solutions.
Design a kind of remote control record car mould anti-disturbance method of low cost, comprise step:
A, after receiving antenna selecting frequently amplifying unit;
B, input termination filter unit at frequency-selecting amplifying unit,
C, then signalization reception processing unit and intelligent decoding unit in single-chip microcomputer U1, the input end of described signal processing unit is located on an input pin RXD of single-chip microcomputer U1, one signal capture device is every 20 μ s run-downs on RXD, see scanning result, this pin is high level, or low level; Four or five continuous high level are numeral " 1 ", greater or less than omitting; Four or five continuous low levels are digital " 0 ", and greater or less than omitting, scanning result stores with two bytes are temporary;
D, after the combination receiving three " 1 ", " 0 " continuously, signal capture device notification signal receives that process unit quasi is standby accepts director data;
After E, 500 μ s, the command byte of first 8 is come, signal capture device work 800 μ s, and by first location of instruction of this byte stored in single-chip microcomputer U1 storer, this instruction is target instruction target word;
F, next, signal capture device scanning t test pin RXD, obtains the low level signal of 100 μ s, then signal capture device work 800 μ s, by second location of instruction of the command byte of second 8 stored in single-chip microcomputer U1 storer, this instruction is action command;
G, next, signal capture device scanning t test pin RXD, obtain the low level signal of 100 μ s, then signal capture device work 800 μ s, by three location of instruction of the data of the 3rd 8 stored in single-chip microcomputer U1 storer, this byte is the CRC cyclic redundancy check (CRC) code of the first two instruction;
After H, 3.5ms, a Signal reception processing procedure terminates, and signal capture device stops scanning t test pin RXD;
I, following single-chip microcomputer U1 starts the school computing of CRC cyclic redundancy, the computing of CRC cyclic redundancy is carried out in target instruction target word and action command by turn, draw an operation result, stored in the 4th location of instruction of single-chip microcomputer U1 storer, then the CRC cyclic redundancy check (CRC) code that the CRC cyclic redundancy check (CRC) code received and single-chip microcomputer U1 the machine are calculated is compared, if comparative result is correct, then target instruction target word and action command are derived, exported by instruction dispatch unit, go to drive recording acoustics unit, to advance driver element, at least one in servo driving unit,
After J, 100ms, signal capture device is reworked, and goes to step C.
Drive recording acoustics unit to adopt DAC pattern to export the IC driven, model comprises ISO18824X series.
Manufacture a kind of jamproof circuit of remote control record car mould of low cost according to said method, described jamproof circuit comprises:
One selecting is amplifying unit frequently;
One input termination filter unit,
One signal processing unit and intelligent decoding unit, the input end of described signal processing unit is located on an input pin RXD of single-chip microcomputer U1; Described single-chip microcomputer U1 adopts general single chip;
The two-stage high-frequency signal amplifier of described selecting frequency amplifying unit adopts discrete component transistor; At the input end of first order amplifier, an inductance L 2 and electric capacity C6 form the second wave filter, and inductance L 1 and electric capacity C1 form the first wave filter, and transistor Q1, inductance L 3 and electric capacity C5 form the 3rd wave filter, by the noise signal filtering beyond 27MHZ;
Signal processing unit in described single-chip microcomputer U1 is set as intermittent reception director data mode of operation.
Described intelligent decoding unit is arranged in single-chip microcomputer U1, and its instruction outputs to instruction dispatch unit, and described instruction dispatch unit drives at least one in recording acoustics unit, driver element of advancing, servo driving unit.
Drive recording acoustics unit to adopt DAC pattern to export the IC driven, model comprises ISO18824X series, and compatible chip.
Beneficial effect of the present invention is: cost of the present invention is very low, and efficiently solves interference problem, and during long-distance remote control, playback can not the reception of undesired signal.
Accompanying drawing explanation
Utilize accompanying drawing to be further detailed the present invention below, but the embodiment in accompanying drawing does not form any limitation of the invention.
Fig. 1 is the remote control record car mould anti-disturbance method of low cost of the present invention and the control principle block scheme of circuit;
Fig. 2 is the remote control record car mould anti-disturbance method of low cost of the present invention and the time diagram of circuit reception instruction;
Fig. 3 is the remote control record car mould anti-disturbance method of low cost of the present invention and the circuit diagram of circuit frequency-selecting amplifying unit;
Fig. 4 is that the remote control record car mould anti-disturbance method of low cost of the present invention and circuit are advanced driver element circuit diagram;
Fig. 5 is remote control record car mould anti-disturbance method and the circuit servo driving element circuit figure of low cost of the present invention;
Fig. 6 is remote control record car mould anti-disturbance method and the circuit recording acoustics unit circuit diagram of low cost of the present invention.
Include in Fig. 1 ~ Fig. 6:
11---filter unit
12---frequency-selecting amplifying unit
13---signal processing unit
14---intelligent codec processing unit
15---instruction dispatch unit
21---recording acoustics unit
22---driver element of advancing
23---servo driving unit.
Embodiment
Below in conjunction with concrete embodiment, the present invention will be described.
As shown in Fig. 1 ~ Fig. 6, implement a kind of remote control record car mould anti-disturbance method of low cost, comprising step has:
A, after receiving antenna selecting frequently amplifying unit 12;
B, input termination filter unit 11 at frequency-selecting amplifying unit 12,
C, then signalization reception processing unit 13 and intelligent decoding unit 14 in single-chip microcomputer U1, the input end of described signal processing unit 13 is located on an input pin RXD of single-chip microcomputer U1, one signal capture device is every 20 μ s run-downs on RXD, see scanning result, this pin is high level, or low level; Four or five continuous high level are numeral " 1 ", greater or less than omitting; Four or five continuous low levels are digital " 0 ", and greater or less than omitting, scanning result stores with two bytes are temporary;
D, after the combination receiving three " 1 ", " 0 " continuously, signal capture device notification signal receive processing unit 13 prepare accept director data;
After E, 500 μ s, the command byte of first 8 is come, signal capture device work 800 μ s, and by first location of instruction of this byte stored in single-chip microcomputer U1 storer, this instruction is target instruction target word;
F, next, signal capture device scanning t test pin RXD, obtains the low level signal of 100 μ s, then signal capture device work 800 μ s, by second location of instruction of the command byte of second 8 stored in single-chip microcomputer U1 storer, this instruction is action command;
G, next, signal capture device scanning t test pin RXD, obtain the low level signal of 100 μ s, then signal capture device work 800 μ s, by three location of instruction of the data of the 3rd 8 stored in single-chip microcomputer U1 storer, this byte is the CRC cyclic redundancy check (CRC) code of the first two instruction;
After H, 3.5ms, a Signal reception processing procedure terminates, and signal capture device stops scanning t test pin RXD;
I, following single-chip microcomputer U1 starts the school computing of CRC cyclic redundancy, the computing of CRC cyclic redundancy is carried out in target instruction target word and action command by turn, draw an operation result, stored in the 4th location of instruction of single-chip microcomputer U1 storer, then the CRC cyclic redundancy check (CRC) code that the CRC cyclic redundancy check (CRC) code received and single-chip microcomputer U1 the machine are calculated is compared, if comparative result is correct, then target instruction target word and action command are derived, exported by instruction dispatch unit 15, go to drive recording acoustics unit 21, to advance driver element 22, at least one in servo driving unit 23,
After J, 100ms, signal capture device is reworked, and goes to step C.
In said method, drive recording acoustics unit 21 to adopt DAC pattern to export the IC driven, model comprises ISO18824X series.
The jamproof circuit of remote control record car mould of low cost, described jamproof circuit comprises:
One selecting is amplifying unit 12 frequently;
One input termination filter unit 11,
One signal processing unit 13 and intelligent decoding unit 14, the input end of described signal processing unit 13 is located on an input pin RXD of single-chip microcomputer U1; Described single-chip microcomputer U1 adopts general single chip;
The two-stage high-frequency signal amplifier of described selecting frequency amplifying unit 12 adopts discrete component transistor; At the input end of first order amplifier, an inductance L 2 and electric capacity C6 form the second wave filter, and inductance L 1 and electric capacity C1 form the first wave filter, and transistor Q1, inductance L 3 and electric capacity C5 form the 3rd wave filter, by the noise signal filtering beyond 27MHZ;
Signal processing unit 13 in described single-chip microcomputer U1 is set as intermittent reception director data mode of operation.
Described intelligent decoding unit 14 is arranged in single-chip microcomputer U1, and its instruction outputs to instruction dispatch unit 15, and described instruction dispatch unit 15 drives at least one in recording acoustics unit 21, driver element 22 of advancing, servo driving unit 23.
Drive recording acoustics unit 21 to adopt DAC pattern to export the IC driven, model comprises ISO18824X series.
Remote-control radio frequency of the present invention selects 27MHZ, frequency cycle 0.04 μ s, if select the single-chip microcomputer of 12MHZ, average each instruction cycle 3 μ s, therefore " 1 ", detecting of " 0 " select 100 μ s, can inerrably detect.
The present invention detects instruction off and on, and the control time of several milliseconds is negligible for user.
Comprehensive above-mentioned situation is known, and the present invention has saving cost, the advantage of dependable performance.Efficiently solve interference problem, during long-distance remote control, playback can not the reception of undesired signal.
Above content is only preferred embodiment of the present invention, and for those of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, this description should not be construed as limitation of the present invention.
Claims (2)
1. a remote control record car mould anti-disturbance method for low cost, is characterized in that described method comprises:
A, selecting frequency amplifying unit (12) after receiving antenna;
B, input termination filter unit (11) at frequency-selecting amplifying unit (12),
C, then signalization reception processing unit (13) and intelligent decoding unit (14) in single-chip microcomputer U1, the input end of described signal processing unit (13) is located on an input pin RXD of single-chip microcomputer U1, one signal capture device is every 20 μ s run-downs on RXD, see scanning result, this pin is high level, or low level; Four or five continuous high level are numeral " 1 ", greater or less than omitting; Four or five continuous low levels are digital " 0 ", and greater or less than omitting, scanning result stores with two bytes are temporary;
D, after the combination receiving three " 1 ", " 0 " continuously, signal capture device notification signal receive processing unit (13) prepare accept director data;
After E, 500 μ s, the command byte of first 8 is come, signal capture device work 800 μ s, and by first location of instruction of this byte stored in single-chip microcomputer U1 storer, this instruction is target instruction target word;
F, next, signal capture device scanning t test pin RXD, obtains the low level signal of 100 μ s, then signal capture device work 800 μ s, by second location of instruction of the command byte of second 8 stored in single-chip microcomputer U1 storer, this instruction is action command;
G, next, signal capture device scanning t test pin RXD, obtain the low level signal of 100 μ s, then signal capture device work 800 μ s, by three location of instruction of the data of the 3rd 8 stored in single-chip microcomputer U1 storer, this byte is the CRC cyclic redundancy check (CRC) code of the first two instruction;
After H, 3.5ms, a Signal reception processing procedure terminates, and signal capture device stops scanning t test pin RXD;
I, following single-chip microcomputer U1 starts the school computing of CRC cyclic redundancy, the computing of CRC cyclic redundancy is carried out in target instruction target word and action command by turn, draw an operation result, stored in the 4th location of instruction of single-chip microcomputer U1 storer, then the CRC cyclic redundancy check (CRC) code that the CRC cyclic redundancy check (CRC) code received and single-chip microcomputer U1 the machine are calculated is compared, if comparative result is correct, then target instruction target word and action command are derived, exported by instruction dispatch unit (15), go to drive recording acoustics unit (21), to advance driver element (22), at least one in servo driving unit (23),
After J, 100ms, signal capture device is reworked, and goes to step C.
2. the remote control record car mould anti-disturbance method of low cost according to claim 1, is characterized in that: drive recording acoustics unit (21) to adopt DAC pattern to export the IC driven, model comprises ISO18824X series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310640255.XA CN103616837B (en) | 2013-12-04 | 2013-12-04 | A kind of remote control record car mould anti-disturbance method of low cost |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310640255.XA CN103616837B (en) | 2013-12-04 | 2013-12-04 | A kind of remote control record car mould anti-disturbance method of low cost |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103616837A CN103616837A (en) | 2014-03-05 |
| CN103616837B true CN103616837B (en) | 2016-04-13 |
Family
ID=50167541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310640255.XA Active CN103616837B (en) | 2013-12-04 | 2013-12-04 | A kind of remote control record car mould anti-disturbance method of low cost |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103616837B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101067899A (en) * | 2007-05-16 | 2007-11-07 | 周华鹏 | Antiinterference infrared remote control device |
| CN103136930A (en) * | 2013-02-25 | 2013-06-05 | 恬家（上海）信息科技有限公司 | Infrared remote control system transmission end and realization method thereof |
| CN203643783U (en) * | 2013-12-04 | 2014-06-11 | 东莞美驰图实业有限公司 | Low-cost anti-interference circuit of remote-controlled recording model car |
-
2013
- 2013-12-04 CN CN201310640255.XA patent/CN103616837B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101067899A (en) * | 2007-05-16 | 2007-11-07 | 周华鹏 | Antiinterference infrared remote control device |
| CN103136930A (en) * | 2013-02-25 | 2013-06-05 | 恬家（上海）信息科技有限公司 | Infrared remote control system transmission end and realization method thereof |
| CN203643783U (en) * | 2013-12-04 | 2014-06-11 | 东莞美驰图实业有限公司 | Low-cost anti-interference circuit of remote-controlled recording model car |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103616837A (en) | 2014-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102968897A (en) | Household appliance remote control method based on handheld equipment | |
| DE602005018274D1 (en) | PROCESSING OF CODED REAL-TIME DATA | |
| CN105141869A (en) | Android system based segmented video data processing method | |
| CN102467817A (en) | Gesture recognition-based remote circuit multiplexing device and method | |
| CN111768609A (en) | Infrared signal processing method and device | |
| CN102175965A (en) | Automatic magnetic card decoding chip testing method | |
| CN203643783U (en) | Low-cost anti-interference circuit of remote-controlled recording model car | |
| CN103616837B (en) | A kind of remote control record car mould anti-disturbance method of low cost | |
| CN201369095Y (en) | Intelligent voice recognition remote controller with two-way communication function | |
| TW202034637A (en) | Interactive music tag system and interactive method thereof | |
| CN105511693B (en) | Touch control communication system and touch control communication method | |
| CN102546002B (en) | Infrared receiving circuit | |
| CN202709371U (en) | Music control humidifier | |
| CN102385887A (en) | Playing device and related method | |
| CN104717352A (en) | Method and device for remotely controlling household appliances in concentrated mode and transceiver | |
| CN202883419U (en) | Voice recognition wireless fan remote controller | |
| CN202679498U (en) | Television set capable of controlling switching with voice | |
| CN203012954U (en) | Remote controller with audio playing function | |
| CN202995295U (en) | Timer controlled by sound | |
| CN206283664U (en) | A kind of multifunction speech card for intelligent robot system | |
| CN206640773U (en) | A kind of intelligent frequency modulation control device for audio tutoring system | |
| CN201270507Y (en) | Acoustic with audio signal transmission mode automatic recognition system | |
| CN204229437U (en) | A kind of equipment of fixing smart card frequency | |
| CN105632538A (en) | Playing system controlled based on wireless mobile terminal | |
| CN203492159U (en) | Novel reliable virtual remote control unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |