CN203965617U - The K wave band digital radar detector of a kind of induction fine motion target at a slow speed - Google Patents
The K wave band digital radar detector of a kind of induction fine motion target at a slow speed Download PDFInfo
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- CN203965617U CN203965617U CN201420310276.5U CN201420310276U CN203965617U CN 203965617 U CN203965617 U CN 203965617U CN 201420310276 U CN201420310276 U CN 201420310276U CN 203965617 U CN203965617 U CN 203965617U
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Abstract
The utility model discloses the K wave band digital radar detector of a kind of induction fine motion target at a slow speed.One end, described high frequency transmitting-receiving subassembly unit is connected with Doppler signal conditioning unit, the other end is connected with power control unit one end, the power control unit other end is connected with digital signal processing unit, the described Doppler signal conditioning unit other end is connected with digital signal processing unit, described digital signal processing unit is connected with infrared signal circuit with alarm output circuit respectively, described oscillator one end is connected with emitting antenna, the other end is connected with frequency mixer one end, and the frequency mixer other end is connected with receiving antenna.Have simple in structure, cost is low, highly sensitive, background environment threshold adaptive and the feature that can identify fine motion target, thereby the environmental suitability of raising device, reduction false-alarm and false dismissal probability, the serviceable life of saving the energy and prolongation lighting device, be widely used in underground parking, underground storehouse, various tunnels, the lyceum of each universities and colleges.
Description
Technical field
The utility model relates to a kind of Digital Microwave noncontact detector that is applied to human body and vehicle, is specifically related to the K wave band digital radar detector of a kind of induction fine motion target at a slow speed.
Background technology
The Lighting Design of most domestic building is all conventional (adopting switch manually to control) without control at present, even be provided with the intelligent building of automatic building control system or intelligent illuminating system, its control system for illumination control owing to being subject to the restriction of technology, often lighting loop is carried out to open and close control, the triggering mode of control is only time, event or program.Cannot accomplish to survey for the service condition of space, even office or meeting room nobody, the situation that also there will be light air-conditioning system still to move, causes a large amount of energy dissipations.
LED daylight lamp is of a great variety at present, and model is different, plays a role in energy saving, but because great majority are not controlled, still have a large amount of invalid power consumptions in conventional illumination is used.For example: in the ambient lighting of underground parking, device rooms, the time of 50%-90% is without any vehicles while passing, and lighting, still in total power illumination, invalid consumes a large amount of electric energy in the time of this 50%-90%.
At present, the detector of detection personnel or vehicle mainly contains pyroelectric infrared detector, acoustic control detector.All there are various deficiencies in these two kinds of detectors:
Acoustic control detector: need to manufacture certain sound, likely affect resident's rest, and be vulnerable to the interference of the extraneous sound, often misoperation, the life-span is short, and load product is limited.
Rpyroelectric infrared is surveyed: infrared probe needs to keep clean for a long time, can not hiddenly install, and is subject to the impact of a lot of environment as larger in the interference of temperature, air conditioning air flow, light etc., and when ambient temperature approaches body temperature, detection range reduces etc.
Above two kinds of detectors, due to the defective of its principle, are all not suitable in underground parking and indoor reliability application.
The detector of microwave Doppler effect is surveyed with rpyroelectric infrared or acoustic control detection is compared, on detection means, there is advantage, but the detector of current existing microwave Doppler effect rests on the upper of C-band (5.8GHZ) or X-band (10.525GHZ) more, for human body fine motion, be difficult to identification, affect result of use.
For the deficiencies in the prior art and defect, the utility model has proposed a kind of K wave band digital radar detector especially.It is with the fine motion of cordless detecting object (personnel, vehicle etc.), and the mode intellectual analysis that uses modern fast digital signal to process, produces corresponding control signal then.Have anti-Radio frequency interference (RFI) ability strong, that for fine motion, survey highly sensitive, leak the feature that discrimination is low, false recognition rate is low, not affected by temperature, humidity, light, air-flow, dust etc., can be arranged on certain thickness plastics, glass, the nonmetallic housings such as wooden, and on the not impact of its detecting function technology, the various fields such as application apparatus control very easily, environment light source control, illumination.
Summary of the invention
It is a kind of simple in structure that the purpose of this utility model is to provide, cost is low, easy to use, highly sensitive, can identify the digital radar sniffer of fine motion target at a slow speed, by this device, can save in a large number the energy and extend the K wave band digital radar detector of a kind of induction fine motion target at a slow speed in lighting device life-span.
Realized and overcome the deficiencies in the prior art, the technical solution of the utility model is to solve like this: the K wave band digital radar detector of a kind of induction fine motion target is at a slow speed comprised of high frequency transmitting-receiving subassembly unit, Doppler signal conditioning unit, digital signal processing unit, power control unit, special character of the present utility model is that one end, described high frequency transmitting-receiving subassembly unit is connected with Doppler signal conditioning unit, the other end is connected with power control unit one end, the power control unit other end is connected with digital signal processing unit, the described Doppler signal conditioning unit other end is connected with digital signal processing unit, described digital signal processing unit is connected with infrared signal circuit with alarm output circuit respectively, described high frequency transmitting-receiving subassembly unit is by oscillator, emitting antenna, receiving antenna, frequency mixer forms, described oscillator one end is connected with emitting antenna, the other end is connected with frequency mixer one end, the frequency mixer other end is connected with receiving antenna.
Described dual-mode antenna is PCB antenna.
Described signal condition element circuit is directly fixed on high frequency assembly rear end with location capillary.
Described oscillator produces the microwave signal of 24GHZ, by signal coupling electric capacity, passes through the outside launched microwave signal of emitting antenna.
Described PCB antenna is dull and stereotyped microstrip antenna.
The utility model compared with prior art, has simple in structurely, and cost is low, easy to use, highly sensitive, can realize the detection of human body fine motion.
Accompanying drawing explanation
Fig. 1 is the utility model detector system structural representation block diagram;
Fig. 2 is the high frequency transmitting-receiving subassembly fundamental diagram of Fig. 1;
Fig. 3 is the signal conditioning circuit schematic diagram of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, summary of the invention is described further:
Shown in Fig. 1, Fig. 2, the K wave band digital radar detector of a kind of induction fine motion target is at a slow speed comprised of high frequency transmitting-receiving subassembly unit, Doppler signal conditioning unit, digital signal processing unit, power control unit, 1 one end, described high frequency transmitting-receiving subassembly unit is connected with Doppler signal conditioning unit 2, the other end is connected with power control unit 4 one end, power control unit 4 other ends are connected with digital signal processing unit 3, described Doppler signal conditioning unit 2 other ends are connected with digital signal processing unit 3, described digital signal processing unit 3 is connected with infrared signal circuit with alarm output circuit respectively, described high frequency transmitting-receiving subassembly unit 1 is by oscillator, emitting antenna, receiving antenna, frequency mixer forms, described oscillator 5 one end are connected with emitting antenna 7, the other end is connected with frequency mixer 6 one end, frequency mixer 6 other ends are connected with receiving antenna 8.
Described dual-mode antenna is PCB antenna.
Described signal condition element circuit is directly fixed on high frequency assembly rear end with location capillary.
Described oscillator produces the microwave signal of 24GHZ, by signal coupling electric capacity, passes through the outside launched microwave signal of emitting antenna.
Described PCB antenna is dull and stereotyped microstrip antenna.
High frequency transmitting-receiving subassembly 1 adopts dull and stereotyped microstrip antenna, considers miniaturization and problem cheaply, and whole transmitting-receiving subassembly employing integral structure, is comprised of four parts such as oscillator 5, frequency mixer 6, emitting antenna 7, receiving antennas 8.Board rear end is used microwave signal shielding aluminum hull.
Doppler signal modulate circuit 2 adopts bandpass filtering to amplify, and integrated circuit is placed on high frequency transmitting-receiving subassembly 1 rear end, adopts location capillary to be fixed on high frequency assembly 1 rear end.
Digital signal processing unit adopts DSP device, by carrying out time and frequency domain analysis after front end simulating signal A/D conversion, determines whether space exploration exists personnel or vehicle, gathers ambient light illumination information simultaneously, according to relevant control strategy, provides control signal.
High frequency transmitting-receiving subassembly 1 comprises: oscillator 5, and the preferred 24GHZ of the utility model transmits; Emitting antenna 7, for to space exploration emitting electromagnetic wave; Receiving antenna 8, for receiving reflection electromagnetic wave, reflection electromagnetic wave refers to that transmitted wave arrival is detected the echo of being returned by background reflectance in region; Frequency mixer 6, for exporting after the local oscillation signal of oscillator 5 and echoed signal mixing.Mixed frequency signal carries background information and target information.
λr?=?λt(1-V/C)
Doppler frequency=| Fa radio frequency Shuai – reflection frequency |=| 1/ λ t-1/ λ r|=| ft-fr|
Wherein
V=target translational speed
C=light velocity, 300,000Km/S
λ t=transmitted wave microwave wavelength
λ r=reflection wave microwave wavelength
For same moving target, K-wave range Doppler frequency is 2.3 times of X-band, and this is very favourable for surveying the little displacement target of low speed.
Shown in Fig. 3, high frequency transmitting-receiving subassembly 1 is by plug-in unit J1 and Doppler signal conditioning unit 2 physical connections, 3 pin of plug-in unit J1 are connected with power supply, 1 pin is connected with ground, 2 pin successively respectively with the first resistance R 1, the first capacitor C 1, second capacitor C 2 one end connect, the other end of the second capacitor C 2 is connected with one end of the second resistance R 2, the first resistance R 1, ground connection after the other end parallel connection of the first capacitor C 1, second resistance R 2 other ends are connected with the first amplifier U1 negative terminal, the output of amplifier U1 respectively with the 3rd resistance R 3, the 3rd capacitor C 3 one end connect, the 3rd resistance R 3, the 3rd capacitor C 3 other ends are connected with the negative terminal of the first amplifier U1 respectively, the output terminal of the first amplifier U1 is connected with the 5th capacitor C 5 one end, the first amplifier U1 anode is connected with the 4th resistance R 4 one end, the 4th resistance R 4 other ends respectively with the anode of the second amplifier U2, the 5th resistance R 5, the 6th resistance R 6, one end of the 4th capacitor C 4 connects, the 5th resistance R 5 other ends are connected with power supply, ground connection after the other end of the 6th resistance R 6 other ends and the 4th capacitor C 4 is in parallel, the 5th capacitor C 5 other ends are connected with the 7th resistance R 7 one end, the 7th resistance R 7 other ends respectively with the second amplifier U2 negative terminal, the first variable resistor V1, the 6th capacitor C 6 one end connect, the first variable resistor V1 other end is connected with the 8th resistance R 8 one end, the 6th capacitor C 6, the 8th resistance R 8 other ends are connected with the output terminal of the second amplifier U2, the second amplifier U2 output terminal is connected with 2 pin of plug-in unit J2, 4 pin of plug-in unit J2 are connected with one end of the first photoresistance CDS1 and the 9th variable resistor R9 respectively, the other end of the first photoresistance CDS1 is connected with ground, the other end of the 9th variable resistor R9 is connected with power supply, the 3 pin ground connection of plug-in unit J2.
Digital signal processing unit 3 mainly complete input signal processing and provide alarm output signal.
Claims (5)
1. a K wave band digital radar detector of responding to fine motion target at a slow speed, this radar detedtor is comprised of high frequency transmitting-receiving subassembly unit, Doppler signal conditioning unit, digital signal processing unit, power control unit, it is characterized in that being that one end, described high frequency transmitting-receiving subassembly unit (1) is connected with Doppler signal conditioning unit (2), the other end is connected with power control unit (4) one end, power control unit (4) other end is connected with digital signal processing unit (3), described Doppler signal conditioning unit (2) other end is connected with digital signal processing unit (3), described digital signal processing unit (3) is connected with infrared signal circuit with alarm output circuit respectively, described high frequency transmitting-receiving subassembly unit (1) is by oscillator, emitting antenna, receiving antenna, frequency mixer forms, described oscillator (5) one end is connected with emitting antenna (7), the other end is connected with frequency mixer (6) one end, frequency mixer (6) other end is connected with receiving antenna (8).
2. according to the K wave band digital radar detector of a kind of induction fine motion target at a slow speed described in claims 1, it is characterized in that described dual-mode antenna is PCB antenna.
3. according to the K wave band digital radar detector of a kind of induction fine motion target at a slow speed described in claims 1, it is characterized in that described signal condition element circuit is directly fixed on high frequency assembly rear end with location capillary.
4. according to the K wave band digital radar detector of a kind of induction fine motion target at a slow speed described in claims 2, it is characterized in that described oscillator produces the microwave signal of 24GHZ, passes through the outside launched microwave signal of emitting antenna by signal coupling electric capacity.
5. according to the K wave band digital radar detector of a kind of induction fine motion target at a slow speed described in claims 2, it is characterized in that described PCB antenna is dull and stereotyped microstrip antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420310276.5U CN203965617U (en) | 2014-06-12 | 2014-06-12 | The K wave band digital radar detector of a kind of induction fine motion target at a slow speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420310276.5U CN203965617U (en) | 2014-06-12 | 2014-06-12 | The K wave band digital radar detector of a kind of induction fine motion target at a slow speed |
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| Publication Number | Publication Date |
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| CN203965617U true CN203965617U (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420310276.5U Expired - Fee Related CN203965617U (en) | 2014-06-12 | 2014-06-12 | The K wave band digital radar detector of a kind of induction fine motion target at a slow speed |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116643271A (en) * | 2023-07-27 | 2023-08-25 | 深圳安德空间技术有限公司 | Vehicle-mounted ground penetrating radar capable of realizing multiple polarization directions and control method thereof |
-
2014
- 2014-06-12 CN CN201420310276.5U patent/CN203965617U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116643271A (en) * | 2023-07-27 | 2023-08-25 | 深圳安德空间技术有限公司 | Vehicle-mounted ground penetrating radar capable of realizing multiple polarization directions and control method thereof |
| CN116643271B (en) * | 2023-07-27 | 2023-10-10 | 深圳安德空间技术有限公司 | Vehicle-mounted ground penetrating radar capable of realizing multiple polarization directions and control method thereof |
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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: 20141126 Termination date: 20150612 |
|
| EXPY | Termination of patent right or utility model |