CN204180041U - One is infrared induction control system and closely infrared sensing switch thereof closely - Google Patents
One is infrared induction control system and closely infrared sensing switch thereof closely Download PDFInfo
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- CN204180041U CN204180041U CN201420585390.9U CN201420585390U CN204180041U CN 204180041 U CN204180041 U CN 204180041U CN 201420585390 U CN201420585390 U CN 201420585390U CN 204180041 U CN204180041 U CN 204180041U
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Abstract
The utility model relates to electric device technical field, especially one closely infrared induction control system and closely infrared sensing switch thereof.Wherein, control system comprises high voltage source input circuit, pulse modulation and reduction voltage circuit, rectification amplifying circuit, governor circuit, signal transmitting and receiving circuit and modulation drive circuit; High voltage source input circuit exports 300V direct current, pulse modulation and reduction voltage circuit provide 12V direct current by after the step-down of 300V direct current respectively to rectification amplifying circuit and modulation drive circuit, simultaneously, pulse modulation and reduction voltage circuit export PWM modulation signal by rectification amplifying circuit to governor circuit, and governor circuit controls modulation drive circuit action after receiving the signal that signal is launched and receiving circuit feeds back.The utility model when there being barrier to be in default distance of reaction (within 5cm), then can trigger whole system action; It not only can realize PWM and control, and reduces the wastage, and also can realize the high-low pressure isolation of whole system, ensure security performance.
Description
Technical field
The utility model relates to electric device technical field, especially a kind of closely infrared induction control system and the closely infrared sensing switch formed based on this control system.
Background technology
As everyone knows, the control switch of the device such as light fixture or Men Ti is mostly mechanical switch, and it is installed in the wall of building, floor equipotential is set up, and the break-make of being carried out switch by ways of contact such as pressings is controlled, and then realizes the control to related device.
At present, the following problem of this type of switch ubiquity on the market: 1, very inconvenience is safeguarded in complicated, the dismounting of hardware configuration; 2, owing to being adopt the mode of contact to carry out break-make control, so easily there is the problem of cross-infection and the convenience used is poor; 3, circuit structure is complicated, cost is high, poor stability; 4, owing to adopting mechanical part to control, cause switch member easily aging, damage, serious curtailments useful life of switch; 5, strong and weak electricity cannot realize isolation, and switch itself can consume part electricity, and easily causes security threat to the person.In addition, traditional inductive switch also exists: command range far, is not easily controlled, and reaction sensitivity is poor, easy false triggering or do not trigger.
Therefore, be necessary to propose improvement project, to meet the use needs of its reality to existing mechanical switch and inductive switch.
Utility model content
For the deficiency that above-mentioned prior art exists, the purpose of this utility model is to provide the closely infrared induction control system that a kind of circuit structure is simple, highly sensitive, control is convenient, energy consumption is low; Another object of the present utility model is to provide a kind of closely infrared sensing switch formed based on above-mentioned control system, and it has the features such as structure is simple, easy to operate, with low cost, safe and reliable.
To achieve these goals, the utility model adopts following technical scheme:
One is infrared induction control system closely, and it comprises
For connecting the high voltage source input circuit of external power source;
Be connected to pulse modulation and the reduction voltage circuit of the output of high voltage source input circuit;
By the governor circuit that rectification amplifying circuit is connected with pulse modulation and reduction voltage circuit;
The signal be connected with governor circuit by rectification amplifying circuit is launched and receiving circuit; Described signal is launched and receiving circuit comprises an infrared discharge lamps pearl and an infrared receiver lamp pearl
The modulation drive circuit be simultaneously connected with governor circuit with pulse modulation and reduction voltage circuit;
The 220V AC rectification that external power source inputs by described high voltage source input circuit is 300V direct current, described pulse modulation and reduction voltage circuit provide 12V direct current by after the step-down of 300V direct current respectively to rectification amplifying circuit and modulation drive circuit, simultaneously, described pulse modulation and reduction voltage circuit export PWM modulation signal by rectification amplifying circuit to governor circuit, described governor circuit is launched and receiving circuit by rectification amplifying circuit control signal, and described governor circuit controls modulation drive circuit action after receiving the signal that signal is launched and receiving circuit feeds back.
Preferably, the voltage feedback circuit of the duty ratio for adjusting pulse modulation and reduction voltage circuit is also connected with between the input of described pulse modulation and reduction voltage circuit and output.
Preferably, described high voltage source input circuit comprises rectifier bridge stack U1 and high-voltage capacitance CD1, and described high-voltage capacitance CD1 is connected between the both positive and negative polarity of rectifier bridge stack U1, and the positive pole of described rectifier bridge stack U1 is connected with the input of pulse modulation and reduction voltage circuit.
Preferably, described pulse modulation and reduction voltage circuit comprise transformer TR1, the 3rd resistance R3 and the first diode D1, described 3rd resistance R3 and the first diode D1 is connected to the primary side of transformer TR1 after connecting, described 3rd resistance R3 is also parallel with the second resistance R2 and the first electric capacity C1 simultaneously;
The primary side of described transformer TR1 is connected with the input of the input of rectification amplifying circuit, the input of modulation drive circuit and voltage feedback circuit respectively by the second diode D2.
Preferably, described rectification amplifying circuit comprises the electronic filtering unit, one-level amplifying unit and the secondary amplifying unit that connect successively, the input of described electronic filtering unit is connected to the output of pulse modulation and reduction voltage circuit, the output of described secondary amplifying unit is connected with governor circuit, and described signal transmitting and receiving circuit are connected to the input of one-level amplifying unit.
Preferably, described modulation drive circuit comprises a relay K 1.
Preferably, described voltage feedback circuit comprises the power management chip U2 between the input and output of pulse modulation and reduction voltage circuit and photoelectrical coupler UA that is linked in sequence.
One is infrared sensing switch closely, it comprises the shell body that a top side face is hatch frame, circuit board is provided with in described shell body, described circuit board is integrated with above-mentioned one closely infrared induction control system, described infrared discharge lamps pearl and the infrared receiver lamp pearl upper surface being arranged at circuit board side by side, the opening part of described shell body is provided with the transparent cover plate establishing infrared discharge lamps pearl and infrared receiver lamp pearl for cover.
Preferably, described infrared discharge lamps pearl and infrared receiver lamp pearl are all socketed with extinction sleeve pipe.
Preferably, described transparent cover plate is glass material or acrylic material.
Owing to have employed such scheme, the beneficial effects of the utility model are:
1, the collection of its induced signal, feedback function is realized by the transmitting of final signal and receiving circuit, when the barriers such as finger, human body enter in the predetermined induction range of whole system, then can trigger the action of whole system, induction range adjusts according to governor circuit and rectification amplifying circuit, as being arranged within the scope of 5cm, thus achieve the closely control of system or switch, avoid the problem causing owing to adopting contact to control and control constant or cross-infection;
2, by adopting feedback voltage circuit and PWM control mode, making system or the electric energy loss of switch under static state only have 0.08W, substantially without the generation of power consumption problem, reaching the effect of energy-conserving and environment-protective;
3, realize high-low pressure isolation (i.e. strong and weak electricity isolation) by pulse modulation and reduction voltage circuit, be the safe voltages such as 12V/DC, 5V/DC by 220V/AC voltage transitions, improve the security performance of whole system or switch;
4, based on the inductive switch that control system is formed, there is the advantages such as structure is simple, with low cost, control is convenient, there is very strong practicality and market popularization value.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the control system of the utility model embodiment;
Fig. 2 is the circuit structure diagram of the control system of the utility model embodiment;
Fig. 3 is the STRUCTURE DECOMPOSITION schematic diagram of the inductive switch of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As depicted in figs. 1 and 2, the closely infrared induction control system of the present embodiment, it comprises:
High voltage source input circuit 1, for connecting external power source, carrying out rectification to the 220V/AC voltage of external power source input, and exporting 300V/DC voltage;
Pulse modulation and reduction voltage circuit 2, for by the 300V/DC exported by high voltage source output circuit 1 voltage step-down for 12V/DC voltage provides operating voltage with the electronic devices and components to each circuit, export PWM modulation signal simultaneously and realize high-low pressure isolation, it is connected to the output of high voltage source input circuit 1;
Rectification amplifying circuit 3, for carrying out filtering, amplifying process and amplify, to be delivered to governor circuit 5 actuating signal that signal is launched and receiving circuit 4 feeds back by PWM modulation signal;
Signal is launched and receiving circuit 4, by the barrier in induction preset distance, signal is fed back to governor circuit 5 by rectification amplifying circuit 3;
Governor circuit 5, it comprises a single-chip microcomputer U3, controls and signal controlling modulation drive circuit 6 action of feeding back according to signal transmitting and receiving circuit 4 for realizing the system core according to the PWM modulation signal of whole system;
Modulation drive circuit 6, the external break-make for whole system controls;
Wherein, governor circuit 5 is connected with pulse modulation and reduction voltage circuit 2 by rectification amplifying circuit 3; Signal transmitting and receiving circuit 4 are connected with governor circuit 5 by rectification amplifying circuit 3; Modulation drive circuit 6 is connected with governor circuit 5 with pulse modulation and reduction voltage circuit 2 simultaneously.
So, the 220V alternating current inputted via high voltage source input circuit 1, is becoming 300V direct current, is then carrying out step-down by pulse modulation and reduction voltage circuit 2 after over commutation, thus forms 12V or the 5V direct current that each interlock circuit normally works required, simultaneously, pulse modulation and reduction voltage circuit 2 export PWM modulation signal by rectification amplifying circuit 3 to governor circuit 5, governor circuit 5 then launches by rectification amplifying circuit 3 control signal and receiving circuit 4 transmits, when there being finger, when the preset range (within 5cm) of the barrier entering signal transmittings such as human body and receiving circuit 4 is interior, signal is launched and signal is fed back to governor circuit 5 by rectification amplifying circuit 3 by receiving circuit 4, governor circuit 5 controls modulation drive circuit 6 action after receiving feedback signals, thus realize whole Switch Controller light fixture, the control of the devices such as Men Ti.The distance of reaction of the present embodiment can regulate and control according to governor circuit 5 and shaping amplification circuit 3, so that realize closely responding to control, just exempt from the false triggering of system and avoided traditional appliance switch easily to pollute owing to adopting contact to control or the problem such as cross-infection.
For avoiding the quiescent dissipation of whole system, whole system is made to reach the effect of energy-conserving and environment-protective, the voltage feedback circuit 7 of the duty ratio for adjusting pulse modulation and reduction voltage circuit 2 is also connected with between the input and output of pulse modulation and reduction voltage circuit 2, the voltage status of the whole circuit of voltage feedback circuit 7 Real-time Collection, when clear enters in preset range, the signal adjustment duty ratio that pulse modulation and reduction voltage circuit 2 can feed back according to voltage feedback circuit 7, under making whole system be in static state, through detecting, the energy consumption of the control system under this state is in 0.08W, substantially there is not the problem of power consumption loss.
For optimizing the structure of whole circuit, as Fig. 2 and shown in composition graphs 1:
The high voltage source input circuit 1 of the present embodiment comprises rectifier bridge stack U1 and high-voltage capacitance CD1, and high-voltage capacitance CD1 is connected between the both positive and negative polarity of rectifier bridge stack U1, and the positive pole of rectifier bridge stack U1 is then connected with the input of pulse modulation and reduction voltage circuit 2.
The pulse modulation of the present embodiment and reduction voltage circuit 2 comprise transformer TR1, the 3rd resistance R3 and the first diode D1; Wherein, the 3rd resistance R3 and the first diode D1 is connected to the primary side of transformer TR1 after connecting, the 3rd resistance R3 is also parallel with the second resistance R2 and the first electric capacity C1 simultaneously; Meanwhile, the primary side of transformer TR1 is connected with the input of the input of rectification amplifying circuit 3, the input of modulation drive circuit 6 and voltage feedback circuit 7 respectively by the second diode D2.
The rectification amplifying circuit 3 of the present embodiment comprises the electronic filtering unit 31 be made up of elements such as the first triode Q1, the 4th resistance R4, the second electric capacity C2 and the first Schottky diode DZ1 connected successively, the one-level amplifying unit 32 be made up of elements such as the second triode Q2 and the secondary amplifying unit 33 be made up of elements such as the 4th triodes; Wherein, the input of electronic filtering unit 31 is connected to the output of pulse modulation and reduction voltage circuit 2, and the output of secondary amplifying unit 33 is connected with governor circuit 5, and signal transmitting and receiving circuit 4 are connected to the input of one-level amplifying unit 32.
The signal of the present embodiment launches and receiving circuit 4 comprises an an infrared discharge lamps pearl LED2 and infrared receiver lamp pearl LED1.
The modulation drive circuit 6 of the present embodiment comprises a relay K 1.
The voltage feedback circuit 7 of the present embodiment comprises the LNK364PN type power management chip U2 between the input and output of pulse modulation and reduction voltage circuit 2 and PC817 type photoelectrical coupler UA that is linked in sequence.
Based on above-mentioned control system, the utility model embodiment still provides one closely infrared sensing switch, as shown in Figure 3 and composition graphs 1 and Fig. 2, it comprises the shell body a that a top side face is hatch frame, in shell body a, be provided with circuit board b, circuit board b is integrated with above-mentioned one closely infrared induction control system; Wherein, infrared discharge lamps pearl LED2 and the infrared receiver lamp pearl LED1 upper surface being arranged at circuit board b side by side, be provided with the transparent cover plate c establishing infrared discharge lamps pearl LED2 and infrared receiver lamp pearl LED1 for cover at the opening part of shell body a; So, what transparent cover plate c can be utilized to be carried out by the inner member of whole switch closes, to ensure the interference not being subject to external environment condition; Meanwhile, the transmission of light is carried out by transparent cover plate c.
For ensureing that light is launched and by the effect reflected, the transparent cover plate c of the present embodiment can adopt glass material or acrylic material according to actual production or design conditions.For can be good control scattered light and reverberation, infrared discharge lamps pearl LED2 and infrared receiver lamp pearl LED1 are all socketed with the extinction sleeve pipe d be made up of black plastic material.
The foregoing is only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. a closely infrared induction control system, is characterized in that: it comprises
For connecting the high voltage source input circuit of external power source;
Be connected to pulse modulation and the reduction voltage circuit of the output of high voltage source input circuit;
By the governor circuit that rectification amplifying circuit is connected with pulse modulation and reduction voltage circuit;
The signal be connected with governor circuit by rectification amplifying circuit is launched and receiving circuit, and described signal is launched and receiving circuit comprises an infrared discharge lamps pearl and an infrared receiver lamp pearl;
The modulation drive circuit be simultaneously connected with governor circuit with pulse modulation and reduction voltage circuit;
The 220V AC rectification that external power source inputs by described high voltage source input circuit is 300V direct current, described pulse modulation and reduction voltage circuit provide 12V direct current by after the step-down of 300V direct current respectively to rectification amplifying circuit and modulation drive circuit, simultaneously, described pulse modulation and reduction voltage circuit export PWM modulation signal by rectification amplifying circuit to governor circuit, described governor circuit is launched and receiving circuit by rectification amplifying circuit control signal, and described governor circuit controls modulation drive circuit action after receiving the signal that signal is launched and receiving circuit feeds back.
2. one closely infrared induction control system as claimed in claim 1, is characterized in that: the voltage feedback circuit being also connected with the duty ratio for adjusting pulse modulation and reduction voltage circuit between the input of described pulse modulation and reduction voltage circuit and output.
3. one closely infrared induction control system as claimed in claim 2, it is characterized in that: described high voltage source input circuit comprises rectifier bridge stack (U1) and high-voltage capacitance (CD1), described high-voltage capacitance (CD1) is connected between the both positive and negative polarity of rectifier bridge stack (U1), and the positive pole of described rectifier bridge stack (U1) is connected with the input of pulse modulation and reduction voltage circuit.
4. one closely infrared induction control system as claimed in claim 2, it is characterized in that: described pulse modulation and reduction voltage circuit comprise transformer (TR1), the 3rd resistance (R3) and the first diode (D1), described 3rd resistance (R3) and the first diode (D1) are connected to the primary side of transformer (TR1) after connecting, described 3rd resistance (R3) is also parallel with the second resistance (R2) and the first electric capacity (C1) simultaneously;
The primary side of described transformer (TR1) is connected with the input of the input of rectification amplifying circuit, the input of modulation drive circuit and voltage feedback circuit respectively by the second diode (D2).
5. one closely infrared induction control system as claimed in claim 2, it is characterized in that: described rectification amplifying circuit comprises the electronic filtering unit, one-level amplifying unit and the secondary amplifying unit that connect successively, the input of described electronic filtering unit is connected to the output of pulse modulation and reduction voltage circuit, the output of described secondary amplifying unit is connected with governor circuit, and described signal transmitting and receiving circuit are connected to the input of one-level amplifying unit.
6. one closely infrared induction control system as claimed in claim 2, is characterized in that: described modulation drive circuit comprises a relay (K1).
7. one closely infrared induction control system as claimed in claim 2, is characterized in that: described voltage feedback circuit comprises be linked in sequence power management chip (U2) between the input and output of pulse modulation and reduction voltage circuit and photoelectrical coupler (UA).
8. a closely infrared sensing switch, it comprises the shell body that a top side face is hatch frame, circuit board is provided with in described shell body, it is characterized in that: described circuit board is integrated with the one closely infrared induction control system according to any one of claim 1-7, described infrared discharge lamps pearl and the infrared receiver lamp pearl upper surface being arranged at circuit board side by side, the opening part of described shell body is provided with the transparent cover plate establishing infrared discharge lamps pearl and infrared receiver lamp pearl for cover.
9. one closely infrared sensing switch as claimed in claim 8, is characterized in that: described infrared discharge lamps pearl and infrared receiver lamp pearl are all socketed with extinction sleeve pipe.
10. one closely infrared sensing switch as claimed in claim 8, is characterized in that: described transparent cover plate is glass material or acrylic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420585390.9U CN204180041U (en) | 2014-10-11 | 2014-10-11 | One is infrared induction control system and closely infrared sensing switch thereof closely |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420585390.9U CN204180041U (en) | 2014-10-11 | 2014-10-11 | One is infrared induction control system and closely infrared sensing switch thereof closely |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204180041U true CN204180041U (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420585390.9U Expired - Fee Related CN204180041U (en) | 2014-10-11 | 2014-10-11 | One is infrared induction control system and closely infrared sensing switch thereof closely |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204180041U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108574481A (en) * | 2017-03-13 | 2018-09-25 | 泰科电子(上海)有限公司 | Electronic induction switching circuit, electronic induction switching system and power supply circuit |
| CN113839660A (en) * | 2021-08-03 | 2021-12-24 | 中国电器科学研究院股份有限公司 | Man-machine interaction equipment suitable for complex household appliance environment |
-
2014
- 2014-10-11 CN CN201420585390.9U patent/CN204180041U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108574481A (en) * | 2017-03-13 | 2018-09-25 | 泰科电子(上海)有限公司 | Electronic induction switching circuit, electronic induction switching system and power supply circuit |
| CN108574481B (en) * | 2017-03-13 | 2024-03-01 | 泰科电子(上海)有限公司 | Electronic induction switch circuit, electronic induction switch system and power supply circuit |
| CN113839660A (en) * | 2021-08-03 | 2021-12-24 | 中国电器科学研究院股份有限公司 | Man-machine interaction equipment suitable for complex household appliance environment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20161011 |
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| CF01 | Termination of patent right due to non-payment of annual fee |