CN101738640A - Induction module of microwave motion sensor - Google Patents
Induction module of microwave motion sensor Download PDFInfo
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- CN101738640A CN101738640A CN200810217650A CN200810217650A CN101738640A CN 101738640 A CN101738640 A CN 101738640A CN 200810217650 A CN200810217650 A CN 200810217650A CN 200810217650 A CN200810217650 A CN 200810217650A CN 101738640 A CN101738640 A CN 101738640A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention discloses an induction module of a microwave motion sensor, which detects the displacement of a human body or an object by the microwave Doppler Effect. A circuit module consists of a microwave motion sensor and an induction signal amplifying circuit; a modular circuit comprises the microwave motion sensor, a signal amplifying IC, a signal processing single chip, a positioning screw hole, power input and signal output ports, a 16-grade sensitivity selector, four-triggering-mode selector, a photo-resistance selector, a power stabilizer and the like. A microwave motion sensor circuit board (1) inputs the induction signals which are generated by the displacement of the human body or the object into an induction signal amplifying circuit board (11) and the induction signals are output as the 5 V high-level control signals under the control of an A/D converting single chip (19). The induction module of the microwave motion sensor operates with a direct-current power supply with a voltage of between 6 to 20 V, has characteristics of strong anti-interference, low power consumption, wide voltage range and simple use, and can be applied in the fields of induction lamps and induction energy-saving appliances which are used for detecting the displacement of the human body and the object, the power-saving illumination at parking lots and the like.
Description
Technical field
The present invention relates to the microwave motion sensor application technology, relate in particular to induction module of microwave motion sensor.
Background technology
At present, microwave motion sensor is mainly used in as on the products such as security protection series products such as alarm probe and automatically-controlled door inductor, and human body moves induced signal, needs the circuit of design more complicated to use.The microwave motion sensor signal frequency is at X-band, and frequency is higher, induced signal is handled acquiring a certain degree of difficulty and requirement, and relevant operation technique majority is all grasped in product producer the inside, microwave motion sensor is used limited to.Present microwave motion sensor element and more with the product of microwave motion sensor on the market as alarm probe, door inductor etc., is designed to use the circuit module there be limited evidence currently of of direct supply with microwave motion sensor.For microwave motion sensor is applied to above the other products, enlarge the sensor application scope, the invention provides a kind of induction module of microwave motion sensor, this module is that circuit such as microwave motion sensor, induced signal amplification, signal Processing are combined with each other, design is on the two 45*37mm rectangles circuit board of front and back, the built-up circuit module is directly used the work of 6-20V direct supply, and the user does not need to design the sensor peripheral circuit again and just can use.Use microwave motion sensor with modular structure,, microwave motion sensor is applied to above the other products, microwave motion sensor is more widely used through secondary development.
Summary of the invention
The object of the invention provides a kind of induction module of microwave motion sensor, is used for sense object or position of human body to move the output high level signal, this signal can be done control signal and use, also can directly drive appendix, easy to use, be convenient to secondary development and be used for other above product.
To achieve the above object of the invention, the present invention proposes following technical scheme:
A kind of induction module of microwave motion sensor is characterized in that, this module is made up of two 45*37mm size same circuit board, and wherein one is the microwave motion sensor circuit board, and another piece is induced signal processing and amplifying and control circuit board.
The microwave motion sensor circuit board: the microwave oscillator by HJ-FET and microwave-medium DRO form also has power divider, frequency mixer, wave detector, emitting antenna, receiving antenna etc.The microwave motion sensor circuit adopts the microstrip line construction design, and microstrip line is made by the Copper Foil design of double-sided PCB, and emitting antenna and receiving antenna adopt flat symmetrical structure to be produced on the circuit board.It is the microwave signal of 10-12GHz that microwave oscillator produces frequency, be input to emitting antenna by the signal coupling capacitance, outside directional transmissions microwave signal, in the investigative range of induction module of microwave motion sensor, when having the object or person body to move, receiving antenna is input to the microwave signal of sensing in the frequency mixer of microwave remote sensor, microwave signal mixing with the microwave oscillator generation, by Doppler's induced signal of wave detector output lower frequency, this signal reaction human body or the speed of movement of objects and the size of human body or object.
Preferably, described microwave motion sensor uses the two-sided rectangle circuit board of 45*37mm.
Preferably, described microwave motion sensor circuit adopts the microstrip line construction design, and microstrip line is made by the design of circuit board Copper Foil.
Preferably, the HJ-FET field effect transistor of described microwave motion sensor adopts paster technique to be welded on the circuit board.
Preferably, the microwave-medium DRO of described microwave motion sensor adopts adhesion process to stick on the circuit board.
Preferably, on the described microwave motion sensor circuit board, the set screw hole, the power supply input that are provided with 2 4.5mm are connected the location staight needle with signal.
Preferably, on the described microwave motion sensor circuit board, be provided with microwave signal shielding aluminum hull.
Wherein, described microwave signal shielding aluminum hull physical dimension 36*25*6.7mm is positioned at the positive center of wiring board, and both sides respectively have two clubfoots to be fixed on the circuit board.
Wherein, described location and installation screw hole 4.5mm is positioned at wiring board the right and left.
Wherein, there is the power supply input to be connected the location staight needle with signal on the described circuit board, is positioned on four limit pin of wiring board.
Wherein, on the described sensor circuit board, in microwave signal shielding aluminum hull 36*25*6.7mm (4), source resistance is arranged, provide power supply to sensor circuit; HJ-FET field effect transistor and microwave dielectric oscillator DRO form microwave oscillator; Mixing, detector diode (7), output human body or movement of objects induced signal; Microwave emitting antenna coupling capacitance, the microwave signal of the 10-12Ghz that microwave oscillator is produced is coupled to the microwave motion sensor emitting antenna.
Signal processing and amplifying and control circuit board: use two-sided rectangle circuit board, circuit board is provided with installing and locating screw hole, microwave motion sensor power supply and is connected the location staight needle with signal.The direct supply of 6-20V is by power supply input and signal output port, and behind the HT7150 voltage regulation filtering, the voltage that produces 5V is for the induction module of microwave motion sensor circuit working.The induced signal amplifying circuit is by LM358 and peripheral R, and the C element is formed.Port is selected in 16 grades of sensitivity: finish the distance of reaction adjustment of 0.5-8 rice.4 kinds of triggering modes are selected port: but finish 4 kinds of repeated trigger modes and not reproducible triggering mode adjustment.Port is selected in photoresistance: module connects photoresistance, can suppress to trigger under the brighter environment of daytime or light.The single-chip microcomputer of 9 precision A/D functions is finished induced signal processing, control signal output and the control of various function and is selected.
Preferably, described circuit board uses the two-sided rectangle circuit board of 45*37mm.
Preferably, set screw hole, the power supply input that is provided with 2 4.5mm of described circuit board is connected with signal and locatees staight needle.
Preferably, described circuit board is provided with 16 grades of sensitivity selection ports, 4 kinds of triggering modes select port, photoresistance to select port.
Wherein, on the described circuit board, 2 location and installation screw hole 4.5mm are positioned at wiring board the right and left.
Wherein, there is the microwave motion sensor power supply to be connected the location staight needle with signal on the described circuit board, is positioned on four limit pin of wiring board.
Wherein, A/D changes single-chip microcomputer, is positioned at the circuit board center position, and power supply input and signal output port are arranged under the single-chip microcomputer, and the lower left has the LM358 induced signal to amplify IC, and there is power regulator HT7150 (18) in the lower right corner of circuit board.
As can be seen from the above technical solutions, induction module of microwave motion sensor of the present invention, microwave motion sensor, signal are amplified IC, signal processing single chip, set screw hole, power supply input and signal output port, 16 grades of sensitivity choosing, 4 kinds of triggering mode selections, photoresistance selection, power regulator etc., design is on the circuit board of two 45*37mm, the built-up circuit module realizes that human body or object space move detection, output induction control signal.
Microwave motion sensor circuit board (1), the induced signal that human body or object space is moved generation is input to induced signal amplification treatment circuit plate (11), under the control of A/D conversion single-chip microcomputer (19), with induced signal, exports with high-level control signal.
Microwave motion sensor, being used for human body or object space moves, and induced signal is input to processing and amplifying and control circuit board, after amplifying through the IC on the circuit board, single-chip microcomputer by 9 accuracy A/D function is finished processing, with the high-level control signal output of induced signal with 5V.The signal processing circuit plate is provided with 16 grades of sensitivity adjustments and 4 grades of trigger modes are selected, external photoresistance selection function, use the work of 6-20V direct supply, the induced signal control signal of single-chip microcomputer output, can make level signal and use or directly drive load, use simple, enlarged the range of application of microwave motion sensor, can be widely used in induction light fixture, induction energy saving electrical equipment, the automatic camera equipment of human body or movement of objects, fields such as industry automatic control equipment and parking lot economize on electricity illumination.
Description of drawings
Fig. 1 is the fundamental block diagram of induction module of microwave motion sensor of the present invention.
Fig. 2 is the electrical schematic diagram of induction module of microwave motion sensor of the present invention.
Fig. 3 is the contour structures and the components and parts location drawing of microwave motion sensor circuit board of the present invention.
Fig. 4 is the contour structures and the components and parts location drawing of signal processing circuit plate of the present invention.
Fig. 5 uses figure for the signal of induction module of microwave motion sensor of the present invention.
Fig. 6 uses figure for the DC load of induction module of microwave motion sensor of the present invention.
Fig. 7 uses figure for the AC load of induction module of microwave motion sensor of the present invention.
The present invention is further described below in conjunction with drawings and Examples.
Embodiment
After being input to the direct supply process HT7150 voltage regulation filtering of induction module of microwave motion sensor 6-20V, the voltage that produces 5V is for whole modular circuit work.
Induced signal produces and signal amplifies enforcement:
Microwave motion sensor M produces induced signal, and LM358 and peripheral R, C element are formed signal amplification circuit.Microwave motion sensor M power supply adopts the pulse power supply mode.Single-chip microcomputer HT46R47 generation frequency 1K dutycycle is 2% negative pulse square wave, and control Q1 conducting provides power supply to microwave motion sensor.
Because microwave motion sensor M power supply adopts the pulse power supply mode, pulse can produce very big signal and disturb when arriving, in order to suppress the impulse disturbances that sensor produces, between output of microwave motion sensor signal and signal amplification circuit input, add Q2 and suppress undesired signal.Single-chip microcomputer HT46R47 is offering Q1 negative pulse square wave simultaneously, also will offer Q2 frequency 1K dutycycle and be 1% positive pulse square wave, makes the Q2 conducting of delaying time after the Q1 conducting, and the induced signal that sensor is surveyed is input in the discharge circuit of back.
Microwave motion sensor module energized, in sensing range, there are not mobile human body or object, the Q2 conducting is to have only faint noise signal to be coupled in the amplifying circuit of back, signal amplitude of variation after the amplification is very little, after signal after the amplification is changed through Chip Microcomputer A/D, analyzing does not have mobile human body or object in the investigative range, single-chip microcomputer can not exported high level signal.When sensing human body or movement of objects, the signal of microwave motion sensor output is when the Q2 conducting in sensing range, and after C6 filtering, 3 pin that are coupled to LM358 first order amplifier by C7 and R3 carry out the signal amplification.Amplifying signal is exported by 1 pin, and through C12, R10 is coupled to 6 pin of second level amplifier, carries out after second level signal amplifies, and outputs to 7 pin of single-chip microcomputer HT46R47 by IC 7 pin, is handled through A/D conversion post analysis by single-chip microcomputer.
Single-chip microcomputer output control is implemented:
HT46R47 is the technical grade single-chip microcomputer, has 4 passage A/D conversion and 9 A/D degree of accuracy.The present invention uses RC vibration, finishes oscillation frequency 4Mhz by 13 pin R17 and the C18 of HT46R47.12 pin are 5V positive sources, 9 pin power cathodes.11 pin are single-chip microcomputer resetting pins, meet R16 and C17 and are used for the single-chip microcomputer electrification reset.10 pin with the induction module of microwave motion sensor induced signal, are exported in 5V high level mode by R15 for the output of control signal level.
After microwave remote sensor module induced signal amplifies through two-stage, be input to single-chip microcomputer 7 pin, carry out the A/D conversion, simultaneously the external photoresistance of 8 pin is carried out the A/D conversion, also judge the selection of 1,2,3,4 pin sensitivity levels in high electronegative potential mode, 17,18 pin triggering modes are selected, and after the comprehensive analysis processing, 5V control high level signal is by 10 outputs.
16 grades of sensitivity adjustments implement (Fig. 5, Fig. 6, Fig. 7):
Have 4 to indicate 1,2,3,4 tie point on the wiring board, tie point is broken as 0, and it is 1 that tie point is connected.According to 4 tie points of following coded system short circuit, 16 grades of sensitivity of scalable make distance of reaction adjustable in 0.3-8 rice.
4 tie points all disconnect, and sensitivity is minimum, and distance of reaction is nearest, in 0.5 meter.
4 whole short circuits of tie point, sensitivity is the highest, distance of reaction farthest, more than 8 meters.Adjust as follows: 1:0000,2:0001,3:0010,4:0011,5:0100,6:0101,7:0110,8:0111,9:1000,10:1001,11:1010,12:1011,13:1100,14:1101,15:1110,16:1111.
4 kinds of triggering mode adjustment implement (Fig. 5, Fig. 6, Fig. 7):
Have 2 to indicate 56 tie point on the wiring board, tie point is broken as 0, and it is 1 that tie point is connected.According to 2 tie points of following coded system short circuit, can realize 4 kinds of triggering modes selections, make induced signal that 4 kinds of times outputs be arranged.Adjust as follows: 1,00,2,01,3,10,4,11.
00 not reproducible triggering mode: when detecting mobile object, export and stopped behind the kind high level signal in 3 seconds, detect 3 seconds of delaying time again, detects mobile object and export 3 seconds kinds again, successively circulation.Up to surveying less than mobile object, the output of 5V high level signal stops.
But 01 repeated trigger mode, 2 seconds of delay time: when detecting mobile object, export 2 seconds kind high level signals, 2 seconds kinds in the time, the detection target that module is not stopped with the frequency of per second 30 times, if detect movement of objects once more, the time is continued 2 seconds kinds of time-delay, up to surveying less than mobile object, the time-delay of 5V high level signal stopped after the kind in 2 seconds.
But 10 repeated trigger modes, 10 seconds of delay time: when detecting mobile object, export 10 seconds kind high level signals, 10 seconds kinds in the time, module is with the frequency of per second 30 times, the detection target of not stopping, if detect movement of objects once more, time is continued 10 seconds kinds of time-delay, and up to surveying less than mobile object, the time-delay of 5V high level signal stopped after the kind in 10 seconds.
But 11 repeated trigger modes, 20 seconds of delay time: when detecting mobile object, export 20 seconds kind high level signals, 20 seconds kinds in the time, the detection target that module is not stopped with the frequency of per second 30 times, if detect movement of objects once more, the time is continued 20 seconds kinds of time-delay, up to surveying less than mobile object, the time-delay of 5V high level signal stopped after the kind in 20 seconds.
The CDS photoresistance is implemented:
Connect photoresistance, can suppress to trigger under the brighter environment of daytime or light.
Trigger once and effectively implement:
Connect photoresistance, can under the darker environment of night or light, can trigger when having detected mobile object.In time, both made light become bright at selected triggering mode, all can not change triggering state and delay time by dark.Become low level up to output signal, photoresistance is just started to control to make and is used.
Induction module of microwave motion sensor characteristics of the present invention:
1 is low in energy consumption, the about 6mA of monoblock module power consumption.
2 voltage ranges are wide, use direct current 6-20V.
3 use simply, and microwave motion sensor and induced signal amplification treatment circuit are combined with each other, and do not need to design the microwave motion sensor peripheral circuit again.
4 sensitivity are adjustable, and 16 grades of sensitivity are selected, and adjust easily distance of reaction.
5 defeated signal times are adjustable, and 4 kinds of triggering modes are selected, the convenient signal output time of selecting.
As can be seen from the above technical solutions, the present invention processes microwave motion sensor, signal amplification and processing IC, signal and the function control single chip computer, set screw hole, power supply input and signal output port, triggering mode select port, photo resistance, LDO Regulator, etc. on the circuit board of electronic component integration to two 45*37mm, the built-up circuit module. Have 16 grades distance of reaction to select and 4 kinds of output times, photo resistance is selected. The about 6mA of module dissipation, use the 6-20V dc source, the signal of sensing can be used as level signal and uses or directly drive load, use simply, can be widely used in the fields such as induction light fixture, induction energy saving electrical equipment, industry automatic control equipment and parking lot electric saving illumination of human body or movement of objects.
Claims (9)
1. induction module of microwave motion sensor is characterized in that:
This module includes two identical double-sided PCBs of 45*37mm size, and wherein one is the microwave motion sensor circuit board, and another piece is an induced signal amplification treatment circuit plate;
A: microwave motion sensor circuit board physical dimension 45*37mm comprises being arranged at same circuit board: circuit board profile 45*37mm (1), set screw hole 4.5mm (2) is arranged on the circuit board, and the power supply input is connected with signal locatees staight needle (3); In the microwave signal shielding aluminum hull 36*25*6.7mm (4), there is microwave motion sensor source resistance (9) power supply to be provided for the microwave motion sensor circuit; HJ-FET field effect transistor (5) and microwave dielectric oscillator DRO (6) form microwave oscillator; Mixing, detector diode (7), output human body or movement of objects induced signal; Microwave emitting antenna coupling capacitance (8), the microwave signal of the 10-12Ghz that microwave oscillator is produced is coupled to microwave remote sensor emitting antenna (10);
B: induced signal amplification treatment circuit plate physical dimension 45*37mm, comprise and be arranged at same circuit board: circuit board profile 45*37mm (11), set screw hole 4.5mm (12) is arranged on the circuit board, power regulator HT7150 (18) is connected location staight needle (13) by the microwave motion sensor power supply with signal, the power supply of 5V is provided to induction module of microwave motion sensor; The induced signal amplifying circuit amplifies IC (17) by the LM358 induced signal to be finished, and human body finished by A/D conversion single-chip microcomputer (19) or the movement of objects induced signal is handled and signal output is controlled and the module all functions are set control; The another side of double-sided PCB has power supply input and signal output (14), and sensitivity selection and triggering mode are selected port (15) control, and port (16) control is selected in external photoresistance;
C: microwave motion sensor circuit board (1), the induced signal that human body or object space is moved generation is input to induced signal amplification treatment circuit plate (11), under the control of A/D conversion single-chip microcomputer (19), with the high-level control signal output of induced signal with 5V.
2. induction module of microwave motion sensor according to claim 1, it is characterized in that: microwave motion sensor uses double-sided PCB, circuit board physical dimension 45*37mm (1), microwave signal shielding aluminum hull 36*25*6.7mm (4) is arranged on the circuit board, be positioned at the positive center of wiring board, both sides respectively have two clubfoots to be fixed on the circuit board; The screw hole 4.5mm (2) of installation is arranged on the circuit board, be positioned at wiring board the right and left; There is the power supply input to be connected location staight needle (3) with signal on the circuit board, is positioned on four limit pin of wiring board.
3. induction module of microwave motion sensor according to claim 1, it is characterized in that: on the microwave motion sensor circuit board, in microwave signal shielding aluminum hull 36*25*6.7mm (4),, form microwave oscillator by HJ-FET field effect transistor (5) and microwave dielectric oscillator DRO (6); Produce the microwave signal of 10-12Ghz, be input to emitting antenna (10) by coupling capacitance (8).
4. induction module of microwave motion sensor according to claim 1 is characterized in that: microwave oscillator and mixer, adopt the microstrip line construction design, and microstrip line is made by the Copper Foil design of double-sided PCB.
5. induction module of microwave motion sensor according to claim 1 is characterized in that: HJ-FET field effect transistor (5) adopts paster technique to be welded on the circuit board, and microwave dielectric oscillator DRO (6) adopts adhesion process to stick on the circuit board.
6. induction module of microwave motion sensor according to claim 1, it is characterized in that: the another side of microwave motion sensor double-sided PCB, microwave remote sensor emitting antenna (10) and receiving antenna (20) that symmetrical structure is arranged, Copper Foil design by double-sided PCB is made, and is positioned at wiring board the right and left.
7. induction module of microwave motion sensor according to claim 1, it is characterized in that: the induced signal processing and amplifying is used double-sided PCB, circuit board physical dimension 45*37mm (11) has the screw hole 4.5mm (12) of installation on the circuit board, be positioned at wiring board the right and left; There is the microwave motion sensor power supply to be connected location staight needle (13) with signal, is positioned on four pin of wiring board; The another side of double-sided PCB has: power supply input and signal output (14), and sensitivity selection and triggering mode are selected port (15), and port (16) is selected in external photoresistance.
8. induction module of microwave motion sensor according to claim 1, it is characterized in that: have on the induced signal amplification treatment circuit plate, A/D changes single-chip microcomputer (19), be positioned at the circuit board center position, power supply input and signal output port (14) are arranged under the single-chip microcomputer, and the lower left has the LM358 induced signal to amplify IC (17); There is power regulator HT7150 (18) in the lower right corner of circuit board.
9. induction module of microwave motion sensor according to claim 1, it is characterized in that: this induction module of microwave motion sensor, pass mobile sensor circuit board physical dimension 45*37mm (1) and induced signal amplification treatment circuit plate physical dimension 45*37mm (11) forms by microwave, two double-sided PCB physical dimension are identical, staight needle location on four limits of wiring board, two circuit board solderings are composited, volume 45*37*12mm, error+/-2mm.
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| CN200810217650A CN101738640A (en) | 2008-11-27 | 2008-11-27 | Induction module of microwave motion sensor |
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| CN200810217650A CN101738640A (en) | 2008-11-27 | 2008-11-27 | Induction module of microwave motion sensor |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102307417A (en) * | 2011-07-27 | 2012-01-04 | 河海大学常州校区 | Target tracking subsection power supply street lamp system |
| CN102332896A (en) * | 2011-08-18 | 2012-01-25 | 南京誉葆科技有限公司 | Embedded anti-load frequency-stabilizing source with low phase noise and design method thereof |
| CN102956087A (en) * | 2012-10-20 | 2013-03-06 | 中国石油化工股份有限公司 | Fire-proof and explosion-proof safety prompting device |
| CN103052225A (en) * | 2012-12-18 | 2013-04-17 | 桂林龙胜中海科技节能机器开发有限公司 | Illumination control system |
| CN103327692A (en) * | 2013-06-06 | 2013-09-25 | 奥泰斯电子(东莞)有限公司 | Lighting energy-saving induction system and control method |
| CN104297806A (en) * | 2014-11-12 | 2015-01-21 | 武光杰 | Microwave sensing module |
| CN107085244A (en) * | 2017-05-31 | 2017-08-22 | 杨照林 | Rule moving object interference shielding method and power-economizing method in microwave monitoring human body |
| CN107104664A (en) * | 2016-02-23 | 2017-08-29 | 深圳市佳伟思智能照明有限公司 | Miniature microwave induced module |
| CN111413746A (en) * | 2020-03-26 | 2020-07-14 | 青岛中加特电气股份有限公司 | Detection sensor |
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2008
- 2008-11-27 CN CN200810217650A patent/CN101738640A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102307417A (en) * | 2011-07-27 | 2012-01-04 | 河海大学常州校区 | Target tracking subsection power supply street lamp system |
| CN102307417B (en) * | 2011-07-27 | 2014-04-09 | 河海大学常州校区 | Target tracking subsection power supply street lamp system |
| CN102332896A (en) * | 2011-08-18 | 2012-01-25 | 南京誉葆科技有限公司 | Embedded anti-load frequency-stabilizing source with low phase noise and design method thereof |
| CN102332896B (en) * | 2011-08-18 | 2014-01-15 | 南京誉葆科技有限公司 | Embedded anti-load frequency-stabilizing source with low phase noise and design method thereof |
| CN102956087A (en) * | 2012-10-20 | 2013-03-06 | 中国石油化工股份有限公司 | Fire-proof and explosion-proof safety prompting device |
| CN102956087B (en) * | 2012-10-20 | 2015-04-29 | 中国石油化工股份有限公司 | Fire-proof and explosion-proof safety prompting device |
| CN103052225A (en) * | 2012-12-18 | 2013-04-17 | 桂林龙胜中海科技节能机器开发有限公司 | Illumination control system |
| CN103327692A (en) * | 2013-06-06 | 2013-09-25 | 奥泰斯电子(东莞)有限公司 | Lighting energy-saving induction system and control method |
| CN104297806A (en) * | 2014-11-12 | 2015-01-21 | 武光杰 | Microwave sensing module |
| CN107104664A (en) * | 2016-02-23 | 2017-08-29 | 深圳市佳伟思智能照明有限公司 | Miniature microwave induced module |
| CN107085244A (en) * | 2017-05-31 | 2017-08-22 | 杨照林 | Rule moving object interference shielding method and power-economizing method in microwave monitoring human body |
| CN111413746A (en) * | 2020-03-26 | 2020-07-14 | 青岛中加特电气股份有限公司 | Detection sensor |
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Addressee: Wu Guangjie Document name: Notification of Publication of the Application for Invention |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100616 |