CN104579270A - Infrared remote control timer - Google Patents
Infrared remote control timer Download PDFInfo
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- CN104579270A CN104579270A CN201310492517.2A CN201310492517A CN104579270A CN 104579270 A CN104579270 A CN 104579270A CN 201310492517 A CN201310492517 A CN 201310492517A CN 104579270 A CN104579270 A CN 104579270A
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Abstract
The invention provides an infrared remote control timer which comprises a 5V direct-current power supply, an infrared signal receiving amplifying demodulating circuit, a mono-stable timing circuit, a level output and relay control circuit and a working state indication circuit, and is characterized in that the selected and used type of an infrared receiver module IC1 in the infrared signal receiving amplifying demodulating circuit is PNA4602M, and the selected and used type of a time-based circuit IC2 in the mono-stable timing circuit is NE555. At present, several infrared remote controllers such as an infrared remote controller for a color TV, a VCD (Video Compact Disc), a DVD (Digital Video Disc), an air conditioner, an electric fan, an electric heater or the like are not used in families. By the unused infrared remote controllers, related electronic equipment or domestic appliances required to be timed can be controlled according to high level output by the timer manufactured from the infrared remote controllers and the relay control circuit, so that the infrared remote controllers unused for a long term can achieve beneficial effects.
Description
Technical field
The invention belongs to electronics and infrared ray control technology field, is about a kind of infra-red remote control timer.
Background technology
Now a lot of family all leaves unused several infrared remote controllers, as: the infrared remote controllers such as colour TV, VCD, DVD, air-conditioning, electric fan or electric heater.Utilize these idle infrared remote controllers, the high level that the timer made according to infrared remote controller of the present invention exports and control relay circuit, the associated electronic device or the household electrical appliance that need timing can be controlled, enable these infrared remote controllers idle for a long time play useful effect.
Below describe the relevant technologies content that infra-red remote control timer of the present invention is involved in implementation process in detail.
Summary of the invention
Goal of the invention and beneficial effect: now a lot of family all leaves unused several infrared remote controllers, as: the infrared remote controllers such as colour TV, VCD, DVD, air-conditioning, electric fan or electric heater.Utilize these idle infrared remote controllers, the high level that the timer made according to infrared remote controller of the present invention exports and control relay circuit, the associated electronic device or the household electrical appliance that need timing can be controlled, enable these infrared remote controllers idle for a long time play useful effect.
Circuit working principle: the infrared receiver module (PNA4602M) in infra-red remote control timer circuit, its inside is made up of infrared receiving terminal, infrared signal amplifier and detuner.In circuit, time base circuit IC2 and potentiometer RP, electrochemical capacitor C2 form mono-stable timing circuit, and its timing is determined by the time constant of potentiometer RP, electrochemical capacitor C2.
When infrared receiver module IC1 confiscates the infrared ray that telepilot sends, the output of infrared receiver module IC1 is in high level, this high level is added to the trigger end (the 2nd pin) of time base circuit IC2, make monostable circuit keep waiting status, the output terminal (the 3rd pin) of time base circuit IC2 is in low level always.After infrared remote controller faces toward infrared receiver module IC1 and presses the upper arbitrary key of infrared remote controller (any a), its infrared signal launched will be received by infrared receiver module IC1, now the output terminal of infrared receiver module IC1 will send a series of high, low level train of impulses, in these train of impulses, as long as there is 1 low level (negative pulse) to be added to the trigger end of time base circuit IC2 (the 2nd pin), mono-stable timing circuit can be triggered, the output terminal of time base circuit IC2 (the 3rd pin) is made to export high level, high level hold time by potentiometer RP, the time constant of electrochemical capacitor C2 determines.
The high level that the output terminal (the 3rd pin) of time base circuit IC2 exports makes LED light, and illustrate that receiving controller receives infrared remote control signal, the high level Direct driver DC relay J that time base circuit IC2 exports simultaneously works.
After pressing an any key of infrared remote controller, because of after the high level maintenance certain hour that time base circuit IC2 monostable exports, infrared receiver module IC1, time base circuit IC2 can be in waiting status again, when pressing any key of infrared remote controller again, the output terminal of infrared receiver module IC1 just produces a series of high and low level signal, the composition mono-stable timing circuit of time base circuit IC2 is triggered again, and its output terminal (the 3rd pin) can export high level again.The scope of potentiometer RP setting-up time is 1 ~ 30 minute.
Technical scheme: infra-red remote control timer, it received by 5V direct supply, infrared signal amplify demodulator circuit, mono-stable timing circuit, level exports and control relay circuit, working state indicating circuit form, its feature comprises:
Infrared signal receives and amplifies demodulator circuit: be made up of infrared receiver module IC1, resistance R1 and electrochemical capacitor C1, one end of the 1st pin connecting resistance R1 of infrared receiver module IC1 and the positive pole of electrochemical capacitor C1,2nd pin of the 3rd pin of infrared receiver module IC1 and the other end connection circuit positive pole VCC of resistance R1, infrared receiver module IC1 and the negative pole connection circuit ground GND of electrochemical capacitor C1;
Mono-stable timing circuit: be made up of time base circuit IC2, potentiometer RP, electrochemical capacitor C2,2nd pin of time base circuit IC2 connects the 1st pin of infrared receiver module IC1,6th pin of time base circuit IC2 and the 7th pin connect one end of potentiometer RP and the positive pole of electrochemical capacitor C2, the negative pole connection circuit ground GND of the 4th pin of time base circuit IC2, the 8th pin and the other end of potentiometer RP and the 1st pin of movable end connection circuit positive pole VCC, time base circuit IC2 and electrochemical capacitor C2;
Level exports and in control relay circuit, the 3rd pin of time base circuit IC2 connects one end of DC relay J coil, the negative pole of switching diode D1 and level output end, the other end of DC relay J coil and the positive pole connection circuit ground GND of switching diode D1;
The positive pole connection circuit positive pole VCC of 5V direct supply, the negative pole of 5V direct supply is connected with circuit ground GND.
Working state indicating circuit: be made up of LED, resistance R2, the 3rd pin of time base circuit IC2 connects the positive pole of LED by resistance R2, the negative pole connection circuit ground GND of LED.
Accompanying drawing explanation
Accompanying drawing 1 is the embodiment circuit working schematic diagram that the invention provides an infra-red remote control timer.
Embodiment
According to circuit working schematic diagram and the accompanying drawing explanation of infra-red remote control timer shown in accompanying drawing 1, and according to the annexation in circuit described in summary of the invention between components and parts, and the components and parts technical parameter described in embodiment requires that carrying out enforcement can realize the present invention.
The selection of components and parts and technical parameter
IC1 is infrared receiver module, and the model selected is PNA4602M;
IC2 is time base circuit, and the model selected is NE555;
D1 is switching diode, and the model selected is 1N4148;
Resistance selects the metalfilmresistor of 1/8W, and the resistance of resistance R1 is 100k Ω; The resistance of resistance R2 is 390 Ω;
The resistance of potentiometer RP is 1.2M Ω, requires to select linear potentiometer;
C1 is electrochemical capacitor, and capacity is 4.7 μ F/16V; C2 is electrochemical capacitor, and capacity is 1000 μ F/16V;
J is DC relay, uses the DC relay that operating voltage is 5V, and the contactless power of DC relay is according to determining as required;
5V DC current source selects output voltage to be the D.C. regulated power supply of 5V, output current 200mA.
Circuit production main points, circuit debugging and use
As long as the electronic devices and components performance that the circuit of infra-red remote control timer is selected is intact, in accompanying drawing 1, the annexation of components and parts is welded to specifications, physical connection line and welding quality through carefully check errorless after, circuit does not generally need debugging normally to work;
Avoid work to intersect for convenience of circuit debugging, can debug respectively by 5V DC current source, infrared signal reception amplification demodulator circuit, mono-stable timing circuit three part;
For quick decision circuitry timing, potentiometer RP can first be adjusted to minimum resistance, i.e. timing about 1 minute, and then increases the resistance of potentiometer RP gradually, observes the change of timing.
Claims (2)
1. an infra-red remote control timer, it received by 5V direct supply, infrared signal amplify demodulator circuit, mono-stable timing circuit, level exports and control relay circuit, working state indicating circuit form, its feature comprises:
Described infrared signal receives amplification demodulator circuit and is made up of infrared receiver module IC1, resistance R1 and electrochemical capacitor C1, the model that infrared receiver module IC1 selects is PNA4602M, one end of the 1st pin connecting resistance R1 of infrared receiver module IC1 and the positive pole of electrochemical capacitor C1,2nd pin of the 3rd pin of infrared receiver module IC1 and the other end connection circuit positive pole VCC of resistance R1, infrared receiver module IC1 and the negative pole connection circuit ground GND of electrochemical capacitor C1;
Described mono-stable timing circuit is made up of time base circuit IC2, potentiometer RP, electrochemical capacitor C2, the model that time base circuit IC2 selects is NE555,2nd pin of time base circuit IC2 connects the 1st pin of infrared receiver module IC1,6th pin of time base circuit IC2 and the 7th pin connect one end of potentiometer RP and the positive pole of electrochemical capacitor C2, the negative pole connection circuit ground GND of the 4th pin of time base circuit IC2, the 8th pin and the other end of potentiometer RP and the 1st pin of movable end connection circuit positive pole VCC, time base circuit IC2 and electrochemical capacitor C2;
Described level exports and in control relay circuit, the 3rd pin of time base circuit IC2 connects one end of DC relay J coil, the negative pole of switching diode D1 and level output end, the other end of DC relay J coil and the positive pole connection circuit ground GND of switching diode D1;
The positive pole connection circuit positive pole VCC of described 5V direct supply, the negative pole of 5V direct supply is connected with circuit ground GND.
2. infra-red remote control timer according to claim 1, it is characterized in that: working state indicating circuit is made up of LED, resistance R2,3rd pin of time base circuit IC2 connects the positive pole of LED by resistance R2, the negative pole connection circuit ground GND of LED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310492517.2A CN104579270A (en) | 2013-10-18 | 2013-10-18 | Infrared remote control timer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310492517.2A CN104579270A (en) | 2013-10-18 | 2013-10-18 | Infrared remote control timer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104579270A true CN104579270A (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310492517.2A Pending CN104579270A (en) | 2013-10-18 | 2013-10-18 | Infrared remote control timer |
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| CN (1) | CN104579270A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105242729A (en) * | 2015-09-25 | 2016-01-13 | 万来德 | Infrared remote control controllable switching circuit |
| CN105636325A (en) * | 2016-03-11 | 2016-06-01 | 金柯楠 | Electronic mosquito killer circuit |
-
2013
- 2013-10-18 CN CN201310492517.2A patent/CN104579270A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105242729A (en) * | 2015-09-25 | 2016-01-13 | 万来德 | Infrared remote control controllable switching circuit |
| CN105242729B (en) * | 2015-09-25 | 2017-11-14 | 万来德 | A kind of infra-red remote control gate-controlled switch circuit |
| CN105636325A (en) * | 2016-03-11 | 2016-06-01 | 金柯楠 | Electronic mosquito killer circuit |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20150429 |