Human body sensing is held concurrently delay LED lamp controller
Technical field
The utility model belongs to electricity saving of road lamp control technology field, relates to a kind of human body sensing and to hold concurrently delay LED lamp controller.
Background technology
Various delay illuminating lamp has all been installed in the public places such as the corridor in a lot of building, as: sound control delay switch uses really easily, can reach the object of energy savings.But also things turn out contrary to one's wishes sometimes, the circuit of this audio-switch is very sensitive, around slightly the sound will action, such as: ambient room enabling, the sound of closing the door, near sound, even downstairs the vehicle whistle sound etc. of setting off firecrackers, capital makes Acoustic controlled light light, not only can not economize on electricity, and also can have influence on the useful life of illuminating lamp because of frequent bright light.Especially, when evening, night was by corridor for you, rely on the sound control road lamp that sound is lighted, people must produce the sound for stamping one's foot or clapping the hands, this sound control road lamp hinders the peacefulness at night really.
For overcoming the defect that conventional delay illuminating lamp exists, the human body sensing described in the utility model microwave induced control of delay LED lamp controller of holding concurrently replaces voice-controlled manner, need not destroy or change the wiring of original lighting circuit during installation, this controller only needs to be arranged near gate or the medium position in corridor, building, far distance controlled can be realized, accomplish that people carrys out automatic lightening LED lamp, people does not leave LED and continues the state of maintaininging lights, and people walks automatic distinguishing after LED time delay a period of time.It and general delayed lamp operating state are very different, and there will not be people not have the leave latency lamp time one to arrive, the embarrassing phenomenon that light fixture extinguishes at once.
Below describe in detail human body sensing described in the utility model hold concurrently the necessity involved in implementation process of delay LED lamp controller, guardian technique content.
Utility model content
Goal of the invention and beneficial effect: for overcoming the defect that conventional delay illuminating lamp exists, the human body sensing described in the utility model microwave induced control of delay LED lamp controller of holding concurrently replaces voice-controlled manner, need not destroy or change the wiring of original lighting circuit during installation, this controller only needs to be arranged near gate or the medium position in corridor, building, far distance controlled can be realized, accomplish that people carrys out automatic lightening LED lamp, people does not leave LED and continues the state of maintaininging lights, and people walks automatic distinguishing after LED time delay a period of time.It and general delayed lamp operating state are significantly improved, and there will not be people not have the leave latency lamp time one to arrive, the embarrassing phenomenon that light fixture extinguishes at once.
Circuit working principle: human body sensing hold concurrently delay LED lamp controller by 12V D.C. regulated power supply supply microwave induction controller IC2 (TX982) and time-base circuit IC1 work.Near the gateway, two ends that it can be arranged on corridor or corridor, when microwave antenna has detected that people walks about in guarded region, then microwave electric field can produce reflection echo, faint frequency-shift signaling is gone out through electronic circuit mixing post-detection, this signal is through the single-chip microcomputer process of microwave induction controller IC2 inside, again by the triode ON 8 ~ 12 seconds of inside, fallen by the 2nd pin output low level of the microwave induction controller IC2 charge discharging resisting be enough to electrochemical capacitor C3 of holding time.Form monostable time delay circuit by time-base circuit IC1, when the 2nd pin of base IC circuit 1 is lower than 1/3 direct current power source voltage at that time, the 3rd pin of time-base circuit IC1 exports high level, is lighted by high-power FET VT1 driving LED lamp; The delay circuit of resistance R3 and timing capacitor C3 composition, delay time about 2 ~ 3 minutes.If after someone leaves corridor, LED is by time delay automatic distinguishing after 2 ~ 3 minutes; If in corridor or in passage, someone walks about successively, microwave induction controller IC2 will trigger single stabilization delay circuit work repeatedly, make the 3rd pin of time-base circuit IC1 export high level incessantly and keep high-power FET VT1 conducting, LED will be made to keep illuminating state.
Technical characteristic: human body sensing is held concurrently delay LED lamp controller, it comprises 220V AC power and half-wave rectifying circuit, 12V DC circuit, microwave induced and detecting circuit, monostable time delay circuit, white light-emitting diode drive circuit, it is characterized in that:
Microwave induced and detecting circuit: the model that microwave induction controller IC2 adopts is TX982, the 1st pin connection circuit positive pole VCC of microwave induction controller IC2,2nd pin of microwave induction controller IC2 connects the 2nd pin and the 6th pin of time-base circuit IC1, the 3rd pin connection circuit ground GND of microwave induction controller IC2, the two ends of loop aerial TX connect the antenna terminal of microwave induction controller IC1 respectively;
Monostable time delay circuit: it is made up of time-base circuit IC1, resistance R3, timing capacitor C3, the model that time-base circuit IC1 adopts is NE555,4th pin of time-base circuit IC1 and the 8th pin connection circuit positive pole VCC, 2nd pin of time-base circuit IC1 is connected with one end of resistance R3 and the positive pole of timing capacitor C3 with the 6th pin, 1st pin of the other end connection circuit positive pole VCC of resistance R3, time-base circuit IC1 and the negative pole connection circuit ground GND of timing capacitor C3;
White light-emitting diode drive circuit: it is made up of an enhancement mode N channel field-effect pipe VT1 and 8 white light-emitting diode LED1 ~ LED8, 3rd pin of time-base circuit IC1 connects the grid of enhancement mode N channel field-effect pipe VT1, white light-emitting diode LED1 ~ LED4 contacts mutually, white light-emitting diode LED5 ~ LED8 contacts mutually, the positive pole of white light-emitting diode LED1 and the positive pole of white light-emitting diode LED5 connect the negative pole of silicon rectifier diode D1, the negative pole of white light-emitting diode LED4 and the negative pole of white light-emitting diode LED8 meet enhancement mode N channel field-effect pipe VT1 and drain, the source electrode connection circuit ground GND of enhancement mode N channel field-effect pipe VT1,
220V AC power and half-wave rectifying circuit: it is made up of decompression capacitor C1, bleeder resistance R1, silicon rectifier diode D1, the positive pole of the other end of the live wire end L of one end of decompression capacitor C1 and a termination 220V AC power of bleeder resistance R1, decompression capacitor C1 and another termination silicon rectifier diode D1 of bleeder resistance R1;
12V DC circuit: it is made up of resistance R2, voltage stabilizing didoe DW and filter capacitor C2, the negative pole of the one termination silicon rectifier diode D1 of resistance R2, the negative pole of another termination voltage stabilizing didoe DW of resistance R2 and the positive pole of filter capacitor C2 and the positive pole of circuit anode VCC, voltage stabilizing didoe DW are connected with the zero line side N of the negative pole of filter capacitor C2 with circuit ground GND and 220V AC power.
Accompanying drawing explanation
Accompanying drawing 1 is that human body sensing is held concurrently an embodiment circuit working schematic diagram of delay LED lamp controller.
Embodiment
To hold concurrently delay LED lamp controller circuitry fundamental diagram and accompanying drawing explanation according to the human body sensing shown in accompanying drawing 1, and according to annexation between components and parts in each several part circuit described in utility model content, and components and parts technical parameter described in execution mode requires and circuit production main points are carried out enforcement and can be realized the utility model, is further described correlation technique of the present utility model below in conjunction with embodiment.
The technical parameter of components and parts and selection requirement
IC1 is time-base circuit, and the model selected is NE555 or LM555, and packing forms is dual inline type 8 pin; Each pin function: the 1st pin connection circuit ground GND; 2nd pin is trigger end; 3rd pin output; 4th pin preset end; 5th pin is control voltage; 6th pin thresholding (threshold value); 7th pin is discharge end; 8th pin meets positive source VCC;
IC2 is microwave induction controller, and the model selected is that TX982, TX982 inside contains microprocessor, the operating voltage 6 ~ 15V of microwave induction controller IC2; 1st pin (red line) of microwave induction controller IC2 connects DC power anode, 2nd pin (white wire) of microwave induction controller IC2, the 3rd pin (copper mesh line or other colo(u)r streak) of microwave induction controller IC2 connects DC power cathode;
VT1 is enhancement mode N channel field-effect pipe, and the model selected is IRFZ22;
D1 is silicon rectifier diode, and the model selected is 1N5404;
LED1 ~ LED8 is 8 white light-emitting diodes, selects super brightness white light-emitting diode;
DW is voltage stabilizing didoe, and the voltage stabilizing value selected is 12V, requires that its power is 1W;
Bleeder resistance R1 selects 2W metalfilmresistor, and its resistance is 620K Ω;
Resistance R2 selects 2W metalfilmresistor, and its resistance is 3.3K Ω;
Resistance R3 selects 1/4W metalfilmresistor, and its resistance is 560K Ω;
C1 is decompression capacitor, selects capacity to be the electric capacity of the dacron of 0.82 μ F/450V;
C2 is filter capacitor, selects capacity to be the electrochemical capacitor of 1000 μ F/25V;
C3 is timing capacitor, selects capacity to be the electrochemical capacitor of 220 μ F/16V.
Circuit production main points and circuit debugging
Because the hold concurrently circuit structure of delay LED lamp controller of human body sensing is fairly simple, as long as the electronic devices and components performance generally selected is intact, and the components and parts annexation to specifications in accompanying drawing 1 is welded, physical connection line and welding quality are through carefully checking correctly, and circuit of the present utility model only needs to debug simply and can normally work;
Should be specifically noted that during welding electric iron shell must ground connection good, puncture microwave induction controller IC2 internal electronic element to avoid the induced voltage of alternating current!
Loop aerial TX directly can use the loop aerial configured with microwave induction controller TX982 product;
The time delay length of monostable time delay circuit, can the resistance of regulating resistance R3, or regulates the capacity of timing capacitor C3;
Enhancement mode N channel field-effect pipe in the on-state, between the source electrode of enhancement mode N channel field-effect pipe and drain electrode, pressure drop is very little, its pressure drop can be ignored substantially, and driving power is very large, if white light-emitting diode brightness is not enough, can the connected mode of white light-emitting diode on accompanying drawing 1 circuit working schematic diagram to specifications, increase the quantity of parallel-connection light-emitting diodes;
The human body sensing distance of microwave induction controller IC2 is about 5 ~ 7m.
Circuit structure design of the present utility model, components' placement; and the shape of its outward appearance and size etc. are not all key technologies of the present utility model; neither the claimed guardian technique content of the utility model; because not affecting the realization of the utility model specific implementation process and utility model object, therefore do not illustrate one by one in the description.