CN204215035U - Monitoring road vehicles FMCW millimeter wave microstrip array radar - Google Patents
Monitoring road vehicles FMCW millimeter wave microstrip array radar Download PDFInfo
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- CN204215035U CN204215035U CN201420597091.7U CN201420597091U CN204215035U CN 204215035 U CN204215035 U CN 204215035U CN 201420597091 U CN201420597091 U CN 201420597091U CN 204215035 U CN204215035 U CN 204215035U
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Abstract
The utility model discloses a kind of monitoring road vehicles FMCW millimeter wave microstrip array radar, the crown cap comprising microstrip antenna, be located at the metal base plate on microstrip antenna and be connected with metal base plate upper surface; The described metal base plate upper surface corresponding with crown cap is provided with radio-frequency receiving-transmitting plate, and radio-frequency receiving-transmitting plate is electrically connected with the digital signal panel between crown cap with at radio-frequency receiving-transmitting plate; Microstrip antenna, radio-frequency receiving-transmitting plate and digital signal panel are electrically connected successively; The utility model has can be measured the speed of multiple vehicle and distance simultaneously, is conducive to reducing traffic monitoring equipment total cost; Adopt continuous wave to launch radar signal, can emissive power be reduced, improve the feature of the sensitivity of radar detection.
Description
Technical field
The utility model relates to radar communication and field of traffic safety, and especially relating to one can simultaneously to multiple vehicle odometry, the monitoring road vehicles FMCW millimeter wave microstrip array radar that distance accuracy is high.
Background technology
The speed of the vehicle that the round-the-clock Real-Time Monitoring of Modern Traffic management expectancy travels on road and vehicle flowrate, for traffic administration and vehicle flowrate control and management provide authentic communication.The vehicle monitoring technology of current highway communication application mainly can be divided into 4 classes such as optics, acoustics, ground induction coil, microwave radar.At inclement weather tolerance, high precision, high reliability, high resolution, Micro Energy Lose and be easy in system integration etc., microwave radar, particularly millimetre-wave radar very advantageous, become the main flow of traffic safety management sensor.
Market has occurred numerous microwave radar for highway traffic control, its principle of work that tests the speed all adopts Doppler range rate measurement principle to obtain high-precision vehicle speed information, and subject matter can only carry out velocity survey for single moving vehicle at each moment.Have part to hold concurrently to measure vehicle relative position with time difference range measurement principle, Problems existing is that system timing resolution is low, and distance accuracy is low.
Chinese patent mandate publication number: CN104064880A, authorize publication date on September 24th, 2014, disclose a kind of Planar integration waveguide array antenna, lightweight, cost is low, performance is good, and be conducive to the monitoring performance improving air defense early warning airborne radar, it comprises: the first antenna array, the second antenna array and carbon fiber stiffening plate; First antenna array, the second antenna array and carbon fiber stiffening plate are arranged in parallel, first antenna array is relative with the second antenna array back side, and carbon fiber stiffening plate is between the first antenna array and the second antenna array and fit for improving antenna intercepting and capturing rate with both; First antenna array and the second antenna array include 84 transversely arranged SIW leaky antenna line elements, 168 T/R assemblies, two SIW feeding network, sum-difference networks of longitudinally placing; The output terminal of 168 T/R assemblies is connected to the two ends of 84 SIW leaky antenna line elements respectively, the equal output terminal of each 1/42SIW series feed distribution network connect 42 T/R assemblies input end and to its feed.The weak point of this invention is, can only find range to single unit vehicle, distance accuracy is low.
Summary of the invention
Goal of the invention of the present utility model can only be found range to single unit vehicle to overcome microwave radar of the prior art, the deficiency that distance accuracy is low, providing one can simultaneously to multiple vehicle odometry, the monitoring road vehicles FMCW millimeter wave microstrip array radar that distance accuracy is high.
To achieve these goals, the utility model is by the following technical solutions:
A kind of monitoring road vehicles FMCW millimeter wave microstrip array radar, the crown cap comprising microstrip antenna, be located at the metal base plate on microstrip antenna and be connected with metal base plate upper surface; The described metal base plate upper surface corresponding with crown cap is provided with radio-frequency receiving-transmitting plate, and radio-frequency receiving-transmitting plate is electrically connected with the digital signal panel between crown cap with at radio-frequency receiving-transmitting plate; Microstrip antenna, radio-frequency receiving-transmitting plate and digital signal panel are electrically connected successively;
Microstrip antenna comprises insulated substrate, is printed on the transmitting turmeric antenna array on insulated substrate lower surface and receives turmeric antenna array; Launch turmeric antenna array and receive turmeric antenna array and include feedback point, time delay power division network line and block-like radiator; The feedback point launching turmeric antenna array and reception turmeric antenna array is electrically connected with radio-frequency receiving-transmitting plate respectively.
Microstrip antenna of the present utility model completes radiation and the Wave beam forming of radiofrequency signal; Metal base plate is made up of aluminium, and metal base plate, except playing mechanical support and protective effect, also as microstrip antenna and radio-frequency receiving-transmitting plate publicly, is used as the electromagnetic screen cell of radio-frequency receiving-transmitting plate simultaneously; Radio-frequency receiving-transmitting plate is made up of radio-frequency receiving-transmitting assembly, completes the radio frequency transmissions process to the Fm swept-frequency signal that the low-pass filter of digital signal panel is sent here, afterwards signal is delivered to the feedback point of microstrip antenna; Meanwhile, radio-frequency receiving-transmitting plate also completes and processes the signal of microstrip antenna feed-in, afterwards the zero intermediate frequency signals Fb_I1 formed and Fb_Q1 is sent into the signal conditioning circuit of digital signal panel.
Digital signal panel completes the process of zero intermediate frequency signals Fb_I1 that the formation of the baseband waveform that transmits and radio frequency transceiver boards send here and Fb_Q1, and extracts speed, the range information of road vehicle, and information framing is formed radar data reaches host computer; Crown cap is made up of aluminium, as radar shell together with metal base plate, provides mechanical support and the installation screw of radar complete machine, plays the electromagnetic screen to radar internal circuit and radar space outerpace simultaneously.Launch turmeric antenna array and receive turmeric antenna array and have reciprocal structure, the spatial beams realizing radiofrequency signal is formed.Insulated substrate upper surface is provided with and covers copper, and form the public the earth of antenna, there is mounting hole on antenna plate four limit.
Compared with traditional traffic monitoring radar, the utility model has following advantage:
Speed and the distance of bi-directional vehicle can be measured simultaneously, be conducive to location and take pictures;
Can measure the speed of multiple vehicle and distance simultaneously, be conducive to reducing traffic monitoring equipment total cost;
Can networking, be conducive to the remote monitoring to multiple section;
Adopt continuous wave to launch radar signal, can emissive power be reduced, be conducive to reducing the electromagnetic interference (EMI) to environment; The sensitivity of radar detection can be improved by coherent accumulation process.
As preferably, described radio-frequency receiving-transmitting plate comprises phaselocking frequency multiplier, power distributing circuit, radio-frequency (RF) power amplification circuit, low-noise amplification circuit, orthogonal mixer and 2 intermediate frequency filtering amplifying circuits; Phaselocking frequency multiplier, power distributing circuit and radio-frequency (RF) power amplification circuit are electrically connected successively, and the Fm signal input interface that phaselocking frequency multiplier and digital signal panel export is electrically connected, and radio-frequency (RF) power amplification circuit is electrically connected with the feedback point launching turmeric antenna array;
Receive the feedback point of turmeric antenna array, low-noise amplification circuit and orthogonal mixer to be electrically connected successively, orthogonal mixer is electrically connected with the signal input part of power distributing circuit and 2 intermediate frequency filtering amplifying circuits respectively, and the signal output part of 2 intermediate frequency filtering amplifying circuits is electrically connected with the Fb_I1 signal input interface of digital signal panel and Fb_Q1 signal input interface respectively.
The processing procedure transmitted is as follows:
The swept-frequency signal Fm that digital signal panel is sent here becomes radiofrequency signal through the frequency transformation of phaselocking frequency multiplier, afterwards after power distributing circuit and radio-frequency (RF) power amplification circuit are amplified to the power of regulation, the transmitting turmeric antenna array delivering to microstrip antenna forms transmitting of certain wave beam;
The processing procedure of Received signal strength is as follows:
The radar echo signal receiving the feed-in of turmeric antenna array completes power amplification through low-noise amplification circuit, the partial transmitting signal sent here with power distributing circuit in orthogonal mixer afterwards carries out relevant quadrature downconvert, the signal obtained completes filtering and amplification in intermediate frequency filtering amplifying circuit, afterwards zero intermediate frequency complex signal Fb_I1 and Fb_Q1 formed is sent into the signal conditioning circuit of digital signal panel.
As preferably, digital signal panel comprises programmable gate array FPGA, signal generator, low-pass filter, Ethernet interface, storer, RS232 serial ports, Fb_I1 signal conditioning circuit, Fb_I1 analog to digital conversion circuit, Fb_Q1 signal conditioning circuit, Fb_Q1 analog to digital conversion circuit; FPGA is electrically connected with signal generator, Ethernet interface, storer, RS232 serial ports, Fb_I1 analog to digital conversion circuit and Fb_Q1 analog to digital conversion circuit respectively;
The signal input part of low-pass filter is electrically connected with signal generator, and the signal output part of low-pass filter is electrically connected with FM signal input interface; The signal output part of Fb_I1 signal conditioning circuit is electrically connected with the signal input part of Fb_I1 analog to digital conversion circuit, and the signal output part of Fb_Q1 signal conditioning circuit is electrically connected with the signal input part of Fb_Q1 analog to digital conversion circuit; The signal input part of Fb_I1 signal conditioning circuit is electrically connected with Fb_I1 signal input interface, and the signal input part of Fb_Q1 signal conditioning circuit is electrically connected with Fb_Q1 signal input interface.
The acquisition process of zero intermediate frequency complex signal is made up of simple two-way signal modulate circuit and analog to digital conversion circuit, and signal conditioning circuit is made up of programme-controlled gain amplification chip and peripheral circuit, realizes the low-pass filtering to input signal and amplification; Analog to digital conversion circuit is served as by ADC chip, completes the digitizing to simulating signal; The configuration of signal conditioning circuit amplifier and the control of analog to digital conversion circuit are realized by field programmable gate array.
Signal transacting at the scene programmable gate array completes, and wherein storer provides external cache to the data collected and signal transacting intermediate result, can be completed by SDAM storage chip.Digital signal panel provides RS232 serial ports and RJ45 Ethernet interface, uploads to host computer or remote traffic supervision center to facilitate the target vehicle information after by framing.
As preferably, be located on insulated substrate upper surface cover copper and radio-frequency receiving-transmitting plate is electrically connected with metal base plate respectively by conducting resinl, metal base plate ground connection.
As preferably, launch turmeric antenna array and be electrically connected with radio-frequency receiving-transmitting plate respectively by ripple pearl with the feedback point receiving turmeric antenna array.
As preferably, described radio-frequency receiving-transmitting plate is provided with needle stand, and digital signal panel is provided with dual-in-line pin; Radio-frequency receiving-transmitting plate and digital signal panel are by the needle stand that cooperatively interacts and the electrical connection of dual-in-line pin.
Signal generator produces the time-frequency triangle swept-frequency signal of specified period and slope under FPGA configuration, and low-pass filter is made up of 7 rank Low-pass Elliptic Filters, and the swept-frequency signal Fm of output delivers to radio-frequency receiving-transmitting plate by the dual-in-line pin of 2X5.
As preferably, signal generator is AD9854 chip; FPGA is XC3S500E chip.
Therefore, the utility model has following beneficial effect:
(1) speed and the distance of bi-directional vehicle can be measured simultaneously, be conducive to location and take pictures;
(2) can measure the speed of multiple vehicle and distance simultaneously, be conducive to reducing traffic monitoring equipment total cost;
(3) can utilize RJ45 Ethernet interface can networking, be conducive to the remote monitoring to multiple section;
(4) adopt continuous wave to launch radar signal, can emissive power be reduced, be conducive to reducing the electromagnetic interference (EMI) to environment; The sensitivity of radar detection can be improved by coherent accumulation process.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is a kind of theory diagram of radio-frequency receiving-transmitting plate of the present utility model;
Fig. 3 is a kind of theory diagram of digital signal panel of the present utility model;
Fig. 4 is a kind of circuit diagram of phaselocking frequency multiplier of the present utility model;
Fig. 5 is a kind of structural representation of base band antenna of the present utility model.
In figure: microstrip antenna 1, metal base plate 2, radio-frequency receiving-transmitting plate 3, digital signal panel 4, crown cap 5, insulated substrate 11, launch turmeric antenna array 12, receive turmeric antenna array 13, feedback point 121, time delay power division network line 122, radiator 123, phaselocking frequency multiplier 31, intermediate frequency filtering amplifying circuit 32, power distributing circuit 33, orthogonal mixer 34, radio-frequency (RF) power amplification circuit 35, low-noise amplification circuit 36, FM signal input interface 37, Fb_I1 signal input interface 38, Fb_Q1 signal input interface 39, low-pass filter 41, signal generator 42, Fb_I1 signal conditioning circuit 43, Fb_I1 analog to digital conversion circuit 44, programmable gate array FPGA 45, storer 46, Fb_Q1 signal conditioning circuit 47, RS232 serial ports 48, Ethernet interface 49, Fb_Q1 analog to digital conversion circuit 471, needle stand 301, dual-in-line pin 401.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
Embodiment is as shown in Figure 1 a kind of monitoring road vehicles FMCW millimeter wave microstrip array radar, the crown cap 5 comprising microstrip antenna 1, be located at the metal base plate 2 on microstrip antenna and be connected with metal base plate upper surface; The metal base plate upper surface corresponding with crown cap is provided with radio-frequency receiving-transmitting plate 3, and radio-frequency receiving-transmitting plate is electrically connected with the digital signal panel 4 between crown cap with at radio-frequency receiving-transmitting plate;
Microstrip antenna, radio-frequency receiving-transmitting plate and digital signal panel are electrically connected successively; Be located on insulated substrate upper surface cover copper and radio-frequency receiving-transmitting plate is electrically connected with metal base plate respectively by conducting resinl, metal base plate ground connection.
The feedback point launching turmeric antenna array and reception turmeric antenna array is electrically connected with radio-frequency receiving-transmitting plate respectively by ripple pearl.Radio-frequency receiving-transmitting plate is provided with needle stand 301, and digital signal panel is provided with dual-in-line pin 401; Radio-frequency receiving-transmitting plate and digital signal panel are by the needle stand that cooperatively interacts and the electrical connection of dual-in-line pin.Signal generator is AD9854 chip; FPGA is XC3S500E chip.
As shown in Figure 5, microstrip antenna comprises insulated substrate 11, is printed on the transmitting turmeric antenna array 12 on insulated substrate lower surface and receives turmeric antenna array 13; Launch turmeric antenna array and receive turmeric antenna array and include feedback point 121, time delay power division network line 122 and block-like radiator 123; The feedback point launching turmeric antenna array and reception turmeric antenna array is electrically connected with radio-frequency receiving-transmitting plate respectively.
As shown in Figure 2, Figure 4 shows, radio-frequency receiving-transmitting plate comprises phaselocking frequency multiplier 31, power distributing circuit 33, radio-frequency (RF) power amplification circuit 35, low-noise amplification circuit 36, orthogonal mixer 34 and 2 intermediate frequency filtering amplifying circuits 32; Phaselocking frequency multiplier, power distributing circuit and radio-frequency (RF) power amplification circuit are electrically connected successively, and the FM signal input interface 37 that phaselocking frequency multiplier and digital signal panel export is electrically connected, and radio-frequency (RF) power amplification circuit is electrically connected with the feedback point launching turmeric antenna array;
Receive the feedback point of turmeric antenna array, low-noise amplification circuit and orthogonal mixer to be electrically connected successively, orthogonal mixer is electrically connected with the signal input part of power distributing circuit and 2 intermediate frequency filtering amplifying circuits respectively, and the signal output part of 2 intermediate frequency filtering amplifying circuits is electrically connected with the Fb_I1 signal input interface 38 of digital signal panel and Fb_Q1 signal input interface 39 respectively.
As shown in Figure 3, digital signal panel comprises programmable gate array FPGA 45, signal generator 42, low-pass filter 41, Ethernet interface 49, storer 46, RS232 serial ports 48, Fb_I1 signal conditioning circuit 43, Fb_I1 analog to digital conversion circuit 44, Fb_Q1 signal conditioning circuit 47, Fb_Q1 analog to digital conversion circuit 471; FPGA is electrically connected with signal generator, Ethernet interface, storer, RS232 serial ports, Fb_I1 analog to digital conversion circuit and Fb_Q1 analog to digital conversion circuit respectively;
The signal input part of low-pass filter is electrically connected with signal generator, and the signal output part of low-pass filter is electrically connected with FM signal input interface; The signal output part of Fb_I1 signal conditioning circuit is electrically connected with the signal input part of Fb_I1 analog to digital conversion circuit, and the signal output part of Fb_Q1 signal conditioning circuit is electrically connected with the signal input part of Fb_Q1 analog to digital conversion circuit; The signal input part of Fb_I1 signal conditioning circuit is electrically connected with Fb_I1 signal input interface, and the signal input part of Fb_Q1 signal conditioning circuit is electrically connected with Fb_Q1 signal input interface.
Radar of the present utility model adopts coherent demodulation system, adopt linear frequency modulation continuous wave (time-frequency triangular wave swept frequency signal) the radiation radar signal of millimere-wave band, front runs into the target reflection echos such as vehicle, by echo and partial transmitting signal mixing, coherent demodulation exports echo difference frequency signal, adopt Time-frequency method analytic signal by back-end digital plate, the information such as the speed of multiple target, position can be obtained.
Signal processing of the present utility model is as follows:
The signal generator of digital signal panel produces and transmits, radio-frequency receiving-transmitting plate completes the signal transacting to the Fm swept-frequency signal that the low-pass filter of digital signal panel exports, Fm swept-frequency signal transfers to the feedback point of the transmitting turmeric antenna array by microstrip antenna, launch turmeric antenna array and send Fm swept-frequency signal, Fm swept-frequency signal produces echoed signal after encountering the target object of geo-stationary, microstrip antenna receives the echoed signal of turmeric antenna array feed-in, echoed signal completes power amplification through low-noise amplification circuit, the partial transmitting signal sent here with power distributing circuit in orthogonal mixer afterwards carries out relevant quadrature downconvert, the signal obtained completes filtering and amplification in intermediate frequency filtering amplifying circuit, the signal conditioning circuit of zero intermediate frequency complex signal Fb_I1 and Fb_Q1 feeding digital signal panel will be formed afterwards, echoed signal is identical with the shape that transmits, and is just delayed τ in time, and the expression formula of τ is
τ-2R/c (1)
Wherein, R is the distance of target object, and c is the light velocity.
Transmit and the difference on the frequency f of echoed signal
0, according to the relation of similar triangles, can draw
In formula, T is the modulated triangular wave cycle, and Δ F is modulating bandwidth.(2) formula shows, the radar return difference frequency of FMCW system is proportional to distance, by (1) (2) two formula simultaneous can obtain relative distance:
For moving target, in echoed signal, comprise Doppler shift f
d.Can be expressed as follows respectively in the frequency sweep trace of time-frequency triangular wave and the echo difference frequency of flyback
f
b+＝f
0-f
d(4)
f
b-＝f
0|f
d(5)
In upper two formulas, f
0for target range frequency, f
dfor target Doppler frequency displacement.F
dcan be tried to achieve by following formula
Simultaneous (3)-(6) formula, the Distance geometry velocity expression can trying to achieve target is as follows
To multi-target condition, carry out pairing process by multiple fb+ and fb-recorded frequency sweep trace and flyback, obtain the Distance geometry velocity information of multiple target.
Should be understood that the present embodiment is only not used in restriction scope of the present utility model for illustration of the utility model.In addition should be understood that those skilled in the art can make various changes or modifications the utility model, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the utility model instruction.
Claims (7)
1. a monitoring road vehicles FMCW millimeter wave microstrip array radar, the crown cap (5) that it is characterized in that, comprise microstrip antenna (1), be located at the metal base plate (2) on microstrip antenna and be connected with metal base plate upper surface; The described metal base plate upper surface corresponding with crown cap is provided with radio-frequency receiving-transmitting plate (3), and radio-frequency receiving-transmitting plate is electrically connected with the digital signal panel (4) between crown cap with at radio-frequency receiving-transmitting plate; Microstrip antenna, radio-frequency receiving-transmitting plate and digital signal panel are electrically connected successively;
Microstrip antenna comprises insulated substrate (11), is printed on the transmitting turmeric antenna array (12) on insulated substrate lower surface and receives turmeric antenna array (13); Launch turmeric antenna array and receive turmeric antenna array and include feedback point (121), time delay power division network line (122) and block-like radiator (123); The feedback point launching turmeric antenna array and reception turmeric antenna array is electrically connected with radio-frequency receiving-transmitting plate respectively.
2. monitoring road vehicles FMCW millimeter wave microstrip array radar according to claim 1, it is characterized in that, described radio-frequency receiving-transmitting plate comprises phaselocking frequency multiplier (31), power distributing circuit (33), radio-frequency (RF) power amplification circuit (35), low-noise amplification circuit (36), orthogonal mixer (34) and 2 intermediate frequency filtering amplifying circuits (32); Phaselocking frequency multiplier, power distributing circuit and radio-frequency (RF) power amplification circuit are electrically connected successively, and the FM signal input interface (37) that phaselocking frequency multiplier and digital signal panel export is electrically connected, and radio-frequency (RF) power amplification circuit is electrically connected with the feedback point launching turmeric antenna array;
Receive the feedback point of turmeric antenna array, low-noise amplification circuit and orthogonal mixer to be electrically connected successively, orthogonal mixer is electrically connected with the signal input part of power distributing circuit and 2 intermediate frequency filtering amplifying circuits respectively, and the signal output part of 2 intermediate frequency filtering amplifying circuits is electrically connected with the Fb_I1 signal input interface (38) of digital signal panel and Fb_Q1 signal input interface (39) respectively.
3. monitoring road vehicles FMCW millimeter wave microstrip array radar according to claim 2, it is characterized in that, digital signal panel comprises programmable gate array FPGA (45), signal generator (42), low-pass filter (41), Ethernet interface (49), storer (46), RS232 serial ports (48), Fb_I1 signal conditioning circuit (43), Fb_I1 analog to digital conversion circuit (44), Fb_Q1 signal conditioning circuit (47), Fb_Q1 analog to digital conversion circuit (471); FPGA is electrically connected with signal generator, Ethernet interface, storer, RS232 serial ports, Fb_I1 analog to digital conversion circuit and Fb_Q1 analog to digital conversion circuit respectively;
The signal input part of low-pass filter is electrically connected with signal generator, and the signal output part of low-pass filter is electrically connected with FM signal input interface; The signal output part of Fb_I1 signal conditioning circuit is electrically connected with the signal input part of Fb_I1 analog to digital conversion circuit, and the signal output part of Fb_Q1 signal conditioning circuit is electrically connected with the signal input part of Fb_Q1 analog to digital conversion circuit; The signal input part of Fb_I1 signal conditioning circuit is electrically connected with Fb_I1 signal input interface, and the signal input part of Fb_Q1 signal conditioning circuit is electrically connected with Fb_Q1 signal input interface.
4. monitoring road vehicles FMCW millimeter wave microstrip array radar according to claim 1, is characterized in that, be located on insulated substrate upper surface cover copper and radio-frequency receiving-transmitting plate is electrically connected with metal base plate respectively by conducting resinl, metal base plate ground connection.
5. monitoring road vehicles FMCW millimeter wave microstrip array radar according to claim 1, is characterized in that, the feedback point launching turmeric antenna array and reception turmeric antenna array is electrically connected with radio-frequency receiving-transmitting plate respectively by ripple pearl.
6. monitoring road vehicles FMCW millimeter wave microstrip array radar according to claim 1, it is characterized in that, described radio-frequency receiving-transmitting plate is provided with needle stand (301), and digital signal panel is provided with dual-in-line pin (401); Radio-frequency receiving-transmitting plate and digital signal panel are by the needle stand that cooperatively interacts and the electrical connection of dual-in-line pin.
7. the monitoring road vehicles FMCW millimeter wave microstrip array radar according to claim 1 or 2 or 3 or 4 or 5 or 6, it is characterized in that, signal generator is AD9854 chip; FPGA is XC3S500E chip.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546974A (en) * | 2015-09-23 | 2017-03-29 | 北京行易道科技有限公司 | A kind of small-sized millimetre-wave radar sensor device |
| CN108037500A (en) * | 2017-11-30 | 2018-05-15 | 安徽四创电子股份有限公司 | A kind of tracking mode monitors radar |
| CN109557530A (en) * | 2017-09-25 | 2019-04-02 | 北京华同微波科技有限公司 | A kind of narrow beam, long covering fmcw radar |
| CN109828273A (en) * | 2019-03-01 | 2019-05-31 | 山东华宇信息空间技术有限公司 | A kind of ad hoc network traffic radar-probing system |
| CN110568215A (en) * | 2019-09-30 | 2019-12-13 | 南京微通电子技术有限公司 | Radar meter and measuring method thereof |
| CN112285715A (en) * | 2020-09-22 | 2021-01-29 | 杭州华智超成技术有限公司 | Millimeter wave radar system based on AT instruction and control method |
| CN112332883A (en) * | 2020-11-18 | 2021-02-05 | 成都菲斯洛克电子技术有限公司 | Low-power-consumption small-size linear frequency modulation source transceiving module |
| CN113173127A (en) * | 2021-06-02 | 2021-07-27 | 尹超 | Automobile with a detachable front cover |
| CN113696827A (en) * | 2021-08-23 | 2021-11-26 | 深圳市安欣变智能科技有限公司 | Automobile with a detachable front cover |
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2014
- 2014-10-15 CN CN201420597091.7U patent/CN204215035U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546974A (en) * | 2015-09-23 | 2017-03-29 | 北京行易道科技有限公司 | A kind of small-sized millimetre-wave radar sensor device |
| CN109557530A (en) * | 2017-09-25 | 2019-04-02 | 北京华同微波科技有限公司 | A kind of narrow beam, long covering fmcw radar |
| CN108037500A (en) * | 2017-11-30 | 2018-05-15 | 安徽四创电子股份有限公司 | A kind of tracking mode monitors radar |
| CN108037500B (en) * | 2017-11-30 | 2024-04-12 | 安徽四创电子股份有限公司 | Tracking type monitoring radar |
| CN109828273A (en) * | 2019-03-01 | 2019-05-31 | 山东华宇信息空间技术有限公司 | A kind of ad hoc network traffic radar-probing system |
| CN109828273B (en) * | 2019-03-01 | 2023-02-24 | 山东华宇信息空间技术有限公司 | Ad-hoc network traffic radar detection system |
| CN110568215A (en) * | 2019-09-30 | 2019-12-13 | 南京微通电子技术有限公司 | Radar meter and measuring method thereof |
| CN112285715A (en) * | 2020-09-22 | 2021-01-29 | 杭州华智超成技术有限公司 | Millimeter wave radar system based on AT instruction and control method |
| CN112332883A (en) * | 2020-11-18 | 2021-02-05 | 成都菲斯洛克电子技术有限公司 | Low-power-consumption small-size linear frequency modulation source transceiving module |
| CN113173127A (en) * | 2021-06-02 | 2021-07-27 | 尹超 | Automobile with a detachable front cover |
| CN113696827A (en) * | 2021-08-23 | 2021-11-26 | 深圳市安欣变智能科技有限公司 | Automobile with a detachable front cover |
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