CN201229402Y - Microwave sensor - Google Patents
Microwave sensor Download PDFInfo
- Publication number
- CN201229402Y CN201229402Y CNU200820092658XU CN200820092658U CN201229402Y CN 201229402 Y CN201229402 Y CN 201229402Y CN U200820092658X U CNU200820092658X U CN U200820092658XU CN 200820092658 U CN200820092658 U CN 200820092658U CN 201229402 Y CN201229402 Y CN 201229402Y
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- microwave
- signal
- remote sensor
- circuit board
- microwave remote
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Abstract
The utility model discloses a microwave sensor which utilizes the microwave Doppler effect to detect the motion of human bodies or objects, wherein a microwave oscillator, a frequency mixer, a microwave transmitting antenna and a receiving antenna are designed on a 45 * 37mm circuit for detecting the motion of the human bodies or the objects, the generating frequency of the microwave oscillator is a 10-12Ghz microwave signal, the signal is transmitted outwards by the transmitting antenna, if the human bodies or the objects move in the sensing range, the sensing signals are inputted into the microwave frequency mixer by the receiving antenna, and low-frequency Doppler effect signals are outputted by the microwave frequency mixer, thereby realizing the aim of detecting the mobile human bodies or objects. The utility model has the characteristics of simple structure, strong anti-interference and high detecting sensitivity.
Description
Technical field
The utility model relates to X frequency range microwave signal, relates in particular to the microwave remote sensor that is used for human body or movement of objects.
Background technology
At present, microwave remote sensor is mainly used in as on the products such as security protection series products such as alarm probe and automatically-controlled door inductor, is used for human body to move induced signal.Be characterized in the detection sensitivity height, anti-interference strong.Because of microwave signal frequency in the X frequency range, frequency is higher, microwave device is required high, produce and debugging big, so this type of microwave remote sensor product mainly contains external manufacturer production.
Summary of the invention
Goal of the invention of the present utility model provides a kind of microwave remote sensor, is used for surveying human body or movement of objects and produces induced signal, and induced signal can be widely used in the indoor and outdoor security protection, fields such as industrial electrical equipment or equipment automatization control through after the processing and amplifying.
To achieve the above object of the invention, the utility model proposes technical scheme:
A kind of microwave remote sensor, its characteristics be, on a 45*37mm rectangle circuit board, and the microwave signal shielding aluminum hull that a physical dimension is set is 36*25*6.7mm, microwave oscillator of forming by HJ-FET field effect transistor and microwave-medium DRO in it; Power divider, frequency mixer are arranged, microwave emitting antenna and receiving antenna are arranged at the another side of circuit board.The 5V power supply is connected the location staight needle by power supply with signal, power to microwave remote sensor by the microwave remote sensor source resistance.In the microwave signal shielding aluminum hull, HJ-FET field effect transistor and microwave dielectric oscillator DRO form microwave oscillator, produce the microwave signal of 10-12Ghz, pass through the outside launched microwave signal of emitting antenna by the signal coupling capacitance, human body or object are arranged in investigative range when mobile, receiving antenna is input to microwave mixer with induced signal, with the signal mixing that microwave oscillator produces, is reflected low-frequency Doppler signal of human body or movement of objects by mixing, wave detector output.
Preferably, described microwave remote sensor uses circuit board physical dimension to be 45*37mm, and the microwave signal shielding aluminum hull on the circuit board is positioned at the positive center of wiring board, and both sides respectively have two clubfoots to be fixed on the circuit board.The screw hole of installation 4.5mm is arranged on the circuit board, be positioned at wiring board the right and left.Power supply is connected the location staight needle with signal, be positioned on four limit pin of wiring board.
Preferably, described HJ-FET field effect transistor, microwave dielectric oscillator DRO, mixing, detector diode, microwave emitting antenna coupling capacitance, the microwave remote sensor source resistance is positioned at microwave signal shielding aluminum hull.
Preferably, another side on the described circuit board has the microwave remote sensor emitting antenna and the receiving antenna of symmetrical structure, is positioned at wiring board the right and left.
As can be seen from the above technical solutions, the utility model microwave remote sensor is on the circuit board of a 45*37mm, a microwave signal shielding aluminum hull is set, in microwave signal shielding aluminum hull, the microwave oscillator that design is made up of HJ-FET field effect transistor and microwave-medium DRO, power divider, frequency mixer.The microwave signal of the 10-12Ghz that microwave oscillator produces, pass through the outside launched microwave signal of emitting antenna by the signal coupling capacitance, human body or object are arranged in investigative range when mobile, receiving antenna is input to microwave mixer with induced signal, signal mixing with the microwave oscillator generation, by low-frequency Doppler signal of mixing, wave detector output reflection human body or movement of objects, thus the microwave remote sensor of realization human body or movement of objects detecting function.The induced signal of this microwave remote sensor can be extensively owing to the indoor and outdoor safety precaution, the human body or the movement of objects target detection in fields such as industrial electrical equipment or equipment automatization control.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the fundamental block diagram of the utility model microwave remote sensor.
Fig. 2 is the contour structures and the components and parts location drawing of the utility model microwave remote sensor circuit board.
Among the figure: circuit board profile 45*37mm (1), screw hole 4.5mm (2), power supply is connected location staight needle (3) with signal, microwave signal shielding aluminum hull 36*25*6.7mm (4), HJ-FET field effect transistor (5), microwave dielectric oscillator DRO (6), mixing, detection tube (7), microwave emitting antenna coupling capacitance (8), microwave remote sensor source resistance (9) has microwave remote sensor emitting antenna (10) and receiving antenna (11) in circuit board another side position.
Embodiment
This microwave remote sensor is on the circuit board of a 45*37mm, is provided with a 36*25*6.7mm microwave signal shielding aluminum hull, and is fixed on the center position of circuit board by 4 clubfoots.In microwave signal shielding aluminum hull, the power supply of 5V is given circuit supply through source resistance, forms microwave oscillator by HJ-FET field effect transistor and microwave-medium DRO.The generation 10-12GHz microwave signal of microwave oscillator, by the signal coupling capacitance, by the outside directional transmissions microwave signal of emitting antenna, human body or object are arranged in its investigative range when mobile, the microwave signal that receiving antenna receives, be input in the mixer, behind the signal mixing that produces with microwave oscillator, by microwave mixer wave detector output 30-100Hz low frequency Doppler signal, the frequency of this signal can reflect the speed of human body or movement of objects, the amplitude reflection human body of signal or object size and object make this circuit module have the microwave remote sensor of Moving Target Exploitation function from the microwave remote sensor distance.
The utility model microwave remote sensor has characteristics:
1: the operating frequency height, antijamming capability is strong.
2: use components and parts few, with low cost.
3: power supply input and signal output are on four angles of circuit board, and is simple and easy to use.
As can be seen from the above technical solutions, the microwave signal that the utility model microwave remote sensor produces is by little Transmit and receive antenna on the wave sensor circuit board, can realize that mobile object or mobile human body survey output Low-frequency Doppler signal, this signal can be widely used in human body or object sense light through after amplifying processing The fields such as tool, induction energy saving electrical equipment, automatic camera equipment and automatic body induction control device.
Claims (4)
1, a kind of microwave remote sensor is characterized in that:
These microwave remote sensor circuit board top components and parts are provided with: microwave remote sensor circuit board (1), set screw hole 4.5mm (2); Power supply is connected location staight needle (3) by power supply with signal, by microwave remote sensor source resistance (9), power to microwave remote sensor; Microwave signal shielding aluminum hull is of a size of 36*25*6.7mm, there are HJ-FET field effect transistor (5) and microwave dielectric oscillator DRO (6) to form microwave oscillator in it, the microwave signal that produces 10-12Ghz is passed through outwards launched microwave signal of emitting antenna (10) by signal coupling capacitance (8), human body or object are arranged in investigative range when mobile, receiving antenna (11) is input to microwave mixer with induced signal, signal mixing with the microwave oscillator generation, by mixing, low-frequency Doppler signal of detector diode (7) output reflection human body or movement of objects.
2, microwave remote sensor according to claim 1, it is characterized in that: described microwave remote sensor uses circuit board physical dimension to be 45*37mm, microwave signal shielding aluminum hull on the circuit board is positioned at the positive center of wiring board, and 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; Power supply is connected location staight needle (3) with signal, be positioned on four limit pin of wiring board.
3, microwave remote sensor according to claim 1, it is characterized in that: described HJ-FET field effect transistor (5), microwave dielectric oscillator DRO (6), mixing, detector diode (7), microwave emitting antenna coupling capacitance (8), microwave remote sensor source resistance (9) are positioned at microwave signal shielding aluminum hull.
4, microwave remote sensor according to claim 1 is characterized in that: another side on the described circuit board, the microwave remote sensor emitting antenna (10) and the receiving antenna (11) of symmetrical structure are arranged, and be positioned at wiring board the right and left.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820092658XU CN201229402Y (en) | 2008-03-14 | 2008-03-14 | Microwave sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820092658XU CN201229402Y (en) | 2008-03-14 | 2008-03-14 | Microwave sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201229402Y true CN201229402Y (en) | 2009-04-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820092658XU Expired - Fee Related CN201229402Y (en) | 2008-03-14 | 2008-03-14 | Microwave sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201229402Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104515986A (en) * | 2013-09-30 | 2015-04-15 | 均利科技股份有限公司 | Microwave detector with range gate function |
| CN104656092A (en) * | 2013-11-18 | 2015-05-27 | 均利科技股份有限公司 | Full-analog microwave detector with multi-distance selection and ultra-low power |
| CN105204016A (en) * | 2014-06-30 | 2015-12-30 | 株式会社理光 | Method of determining whether Doppler effect exist and system thereof |
| CN107978127A (en) * | 2016-10-21 | 2018-05-01 | 中兴通讯股份有限公司 | Security device and safety protecting method |
| CN109035734A (en) * | 2018-08-13 | 2018-12-18 | 珠海格力电器股份有限公司 | A kind of household electrical appliance, human body sensing device and its induction control method |
| CN109447004A (en) * | 2018-11-01 | 2019-03-08 | 深圳市戴升智能科技有限公司 | Pedestrian detection method, device, computer equipment and storage medium based on microwave |
| WO2020042444A1 (en) * | 2018-08-31 | 2020-03-05 | 深圳迈睿智能科技有限公司 | Human body presence detector and human body presence detection method thereof |
| CN111751790A (en) * | 2020-07-10 | 2020-10-09 | 成都镭迪昇科技有限公司 | Microwave sensor based on FBAR oscillator |
| WO2021042652A1 (en) * | 2019-09-06 | 2021-03-11 | 深圳迈睿智能科技有限公司 | Microwave detector and detection method that tend to immediately respond |
-
2008
- 2008-03-14 CN CNU200820092658XU patent/CN201229402Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104515986A (en) * | 2013-09-30 | 2015-04-15 | 均利科技股份有限公司 | Microwave detector with range gate function |
| CN104656092A (en) * | 2013-11-18 | 2015-05-27 | 均利科技股份有限公司 | Full-analog microwave detector with multi-distance selection and ultra-low power |
| CN105204016A (en) * | 2014-06-30 | 2015-12-30 | 株式会社理光 | Method of determining whether Doppler effect exist and system thereof |
| CN105204016B (en) * | 2014-06-30 | 2017-10-10 | 株式会社理光 | Judge whether the method and system of Doppler effect |
| CN107978127A (en) * | 2016-10-21 | 2018-05-01 | 中兴通讯股份有限公司 | Security device and safety protecting method |
| CN109035734A (en) * | 2018-08-13 | 2018-12-18 | 珠海格力电器股份有限公司 | A kind of household electrical appliance, human body sensing device and its induction control method |
| WO2020042444A1 (en) * | 2018-08-31 | 2020-03-05 | 深圳迈睿智能科技有限公司 | Human body presence detector and human body presence detection method thereof |
| CN109447004A (en) * | 2018-11-01 | 2019-03-08 | 深圳市戴升智能科技有限公司 | Pedestrian detection method, device, computer equipment and storage medium based on microwave |
| WO2021042652A1 (en) * | 2019-09-06 | 2021-03-11 | 深圳迈睿智能科技有限公司 | Microwave detector and detection method that tend to immediately respond |
| CN111751790A (en) * | 2020-07-10 | 2020-10-09 | 成都镭迪昇科技有限公司 | Microwave sensor based on FBAR oscillator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090429 Termination date: 20110314 |