CN205067739U - Small -size millimeter wave radar sensor device - Google Patents
Small -size millimeter wave radar sensor device Download PDFInfo
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- CN205067739U CN205067739U CN201520738847.XU CN201520738847U CN205067739U CN 205067739 U CN205067739 U CN 205067739U CN 201520738847 U CN201520738847 U CN 201520738847U CN 205067739 U CN205067739 U CN 205067739U
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Abstract
Provided is a small -size millimeter wave radar sensor device (b) summary the utility model relates to a small -size millimeter wave radar sensor device includes: casing, radio frequency transceiving board, signal processing board. The casing for fix, protect radio frequency transceiving board, signal processing board, the radio frequency transceiving board for production, transmit and receive radiofrequency signal turn into intermediate frequency signal with it, signal processing module for the radio frequency transceiving board provides power and control signal, receives intermediate frequency signal and carries out data signal and handle, extracts effective target information and outside transmission. The barrier in the coverage to preceding to scanning, is surveyed through the transmission electromagnetic wave to this device to can send the target information with data signal's form, trigger and report to the police or other control command.
Description
Technical field
The utility model relates to radar detection and security fields, particularly a kind of high precision, remote, the small-sized millimetre-wave radar sensor device that can adapt to severe environmental conditions.
Background technology
Since Radar Technology is born, Radar Products is more and more universal in the application of all trades and professions.Along with the continuous maturation of radio frequency chip technology, increasing radar sensor is used for vehicle and general purpose vehicle active safety field.This just proposes the requirement of following four aspects to radar sensor: one, detection accuracy is high; Two, small in volume; Three, low-power consumption; Four, harsh working environment can be adapted to.
In view of above requirement, from the characteristic of vehicle and unmanned plane, the utility model is made every effort on the basis of existing technology, invents a kind of novel radar sensor device, improves detection accuracy and the environmental suitability of vehicle and the supporting security system of general purpose vehicle.
The utility model millimetre-wave radar sensor is with the millimeter wave of 76-77GHz for carrier wave, and frequency-modulated form is triangle continuous wave, each frequency modulation cycle 20-100ms.After receiving echo, signal processing module extracts the effective target information in the middle of echo, comprise: the relative distance of radar sensor and target, relative velocity and echo incident angle information, and by serial communication interface, information is passed to alarm or the controller of rear end.
Summary of the invention
The utility model is a kind of millimetre-wave radar sensor device, comprising: housing, radio-frequency receiving-transmitting plate, signal-processing board; Be electrically connected between described radio-frequency receiving-transmitting plate and signal-processing board; Described housing is rigidly connected with radio-frequency receiving-transmitting plate and signal-processing board respectively, and radio-frequency receiving-transmitting plate and signal-processing board are arranged on enclosure interior.
Direct-connected by connector between radio-frequency receiving-transmitting plate and signal-processing board.
In this device, described housing comprises upper body, lower case and shock absorbing ring; Upper body and lower case are rigidly connected, and have seal gasket between the two surface of contact; After upper body and lower case have been assembled, the ring flange that shock absorbing ring is enclosed within upper body and lower case is outside; Upper body adopts PEI material, inner installation radio-frequency receiving-transmitting plate; Lower case adopts aluminum alloy material, and inner installation signal-processing board, and reserved aperture position, for installing the external interface of signal-processing board; The built-in heat conduction beam of housing, there is heat radiator outside.PEI material has excellent mechanical property, electrical insulation capability, radiation-resistant property, high-low temperature resistant and anti-wear performance, and good microwave permeability.Lower case adopts aluminum alloy material, and this material is lightweight, and intensity is large, and shock-resistant, heat conduction and heat radiation is functional; And metal shell plays the effect of isolated electromagnetic interference (EMI) to digital circuit, the interference from carrier complex electromagnetic environment effectively can be avoided.On key chip and the large chip position of thermal value, be provided with heat conduction beam and heat radiator, protection circuit plate and key chip, can work long hours and adapt to severe working environment.Shock absorbing ring inside has metallic framework to support, not easily deformation, both can damping anti-interference, again can enhanced leaktightness effect.The particular design of shell, makes water proof and dust proof grade reach IP6K9K.
In this device, described shock absorbing ring adopts vulcanie material, and there is screw hole the corner of shock absorbing ring, and screw hole is metal material, is nested in vulcanie, and have metal support to be connected to each other between four metallic screw holes, metal support is embedded in vulcanie; Small-sized millimetre-wave radar sensor device is by the corner screw hole support mounted externally of shock absorbing ring or installing plate.
In this device, described radio-frequency receiving-transmitting plate, comprises emitting antenna, receiving antenna, power amplifier module, frequency mixing module and frequently combines module; Emitting antenna and power amplifier module are electrically connected, and receiving antenna and frequency mixing module are electrically connected, and comprehensive module and power amplifier module, frequency mixing module are electrically connected respectively frequently.Radio-frequency receiving-transmitting plate concrete structure asks for an interview Fig. 3.Dual-mode antenna radiating curtain is distributed in rf board front, towards outside, and the outside radiated electromagnetic wave of the upper body through PEI material.Electromagnetic wave is minimum by the loss of PEI material.Dual-mode antenna all adopts micro-band radiant array antenna, the beam shape of 76 ~ 77GHz millimeter wave is much narrower than the wave beam of low frequency, under same antenna size, can differentiate at a distance of nearer Small object, the details of object observing more clearly, makes detection resolution greatly improve.Frequently the acp chip combining module is voltage controlled oscillator, and the acp chip of power amplifier module is radio frequency multiplying amplifier, and the acp chip of frequency mixing module is frequency mixer.Above-mentioned three radio frequency chip height are integrated, stable performance, and reliability is high, compatible good, and voltage controlled oscillator produces the pure radiofrequency signal of high-quality, and by frequency division output feedack to control module, can ensure that radiofrequency signal carrier frequency variation is accurately stable like this.Rf echo signal can be mixed down intermediate-freuqncy signal by frequency mixer, and controls in very low level by system noise interference.Three radio frequency chip outsides all adopt metal shielding to be shielded, and prevent radiofrequency signal from disturbing digital circuit.
In this device, radio-frequency receiving-transmitting plate produce and by transmission antennas transmit Continuous Wave with frequency modulation, mode of frequency regulation is triangle continuous wave, wavelength band 76-77GHz, frequency modulation cycle 20-100ms, electromagnetic beam is after the reflection of front barrier, and receiving antenna receives echo and Frequency mixing processing, obtains intermediate-freuqncy signal and gives signal-processing board.
In this device, described signal-processing board, comprises analog-to-digital conversion module, control module, digital signal processing module, supply module and external interface; Analog-to-digital conversion module, to be electrically connected between control module and digital signal processing module.Signal-processing board concrete structure is shown in Fig. 4.The acp chip of analog-to-digital conversion module is high speed analog-to-digital conversion chip, receives the intermediate-freuqncy signal from radio-frequency receiving-transmitting plate, is converted into digital signal.The core of digital signal processing module is digital signal processor, for receiving digital signal, carries out signal transacting, extracts effective target information, comprises the relative distance between radar sensor and target, relative velocity and echo incident angle information.Control module produces Frequency Modulated radio signals by Control of Voltage voltage controlled oscillator on the one hand, and receive the frequency division output feedack of voltage controlled oscillator on the other hand, the signal frequency vary stable that voltage controlled oscillator is exported is accurate.
In this device, analog-to-digital conversion module receives the intermediate-freuqncy signal from radio-frequency receiving-transmitting plate, is converted into digital signal; Digital signal processing module receives digital signal, carries out signal transacting, extracts target information, comprises the relative distance between radar sensor and target, relative velocity and echo incident angle information; Control module sends control command, and the frequency of control radio-frequency receiving-transmitting plate is combined module and produced satisfactory radio frequency electromagnetic.
In this device, comprise serial communication stitch and power pin in the external interface wherein on signal-processing board, serial communication stitch can be connected by signal wire with alarm or controller, is responsible for outwards transmitting target information; Power pin is used for connecting external power supply and supply module.
This device is powered by external power supply, and power lead two ends connect external power supply and external interface power pin respectively, then are connected to the supply module of signal-processing board by external interface power pin, then via signal-processing board, electric energy are sent to radio-frequency receiving-transmitting plate.
This device adopts the millimeter wave of 76-77GHz as carrier wave, and it is strong that the electromagnetic wave of this frequency has penetrability, the advantage such as to be not easily disturbed, to possess all weather operations ability; And involved microwave device is of a size of grade, within the overall volume of radar sensor can being accomplished 80mm*80mm*50mm;
This device also comprises radar sensor, and the external interface of this sensor can be connected with the alarm of rear end or controller signals line, selects water proof type hermetically sealed connector.In interface, existing serial communication interface stitch, also has power supply stitch, uses a multicore cable can complete power supply and signal transfer function simultaneously.Serial communication speed can meet radar target information delivery request, and serial differential signals itself is not easily by power supply disturbance; Power supply is direct supply, and interference itself is less; So the two can be in same interface.Whole device externally only reserves an interface, so both easy to use, facilitates encapsulation process again, can also more effective shielding outside electromagnetic interference.Connect the supply module on signal-processing board in interface in power supply stitch, external direct current power supply, then via signal-processing board, electric energy is sent to radio-frequency receiving-transmitting plate.Two pieces of circuit boards have employed highly integrated chip as core devices, decrease number of elements, reduce board area, reduce crosstalk; Direct-connected by connector between plate, eliminate wire, this makes device space structure compacter, improves space utilization rate, turn avoid signal in wire, transmit the interference problem brought.Enable this device reduced volume, weight reduction, reduce cost, be easy to be transplanted on different carriers.
The beneficial effect of this device is: the utility model design science is reasonable, and automotive grade product all selected by device used, can adapt to the working temperature of-40 ~ 125 DEG C; Shell is through particular design, and antidetonation, heat dispersion are good, and can resist common corrosion, water proof and dust proof grade reaches IP6K9K.The utility model can realize long-range detection, can differentiate multiple target, gathers simultaneously and extracts the effective target information of multiple target, and being sent it to alarm or the controller of rear end by digital serial port.This device reaction is rapid, and detection range scope far away is large, and can differentiate multiple target, and resolution is high, therefore the utility model is widely used in vehicle-mounted or aircraft active safety system simultaneously, improves detectivity and the adaptive capacity to environment of security system.
Accompanying drawing explanation
The mounting structure figure of accompanying drawing 1. the utility model embodiment.
The allomeric function schematic diagram of accompanying drawing 2. the utility model embodiment.
The allomeric function schematic diagram of accompanying drawing 3. the utility model radio-frequency receiving-transmitting plate.
The allomeric function schematic diagram of accompanying drawing 4. the utility model signal-processing board.
Accompanying drawing 5. the utility model shock absorbing ring structural drawing.
Reference numeral: 1: upper body; 2: lower case; 3: radio-frequency receiving-transmitting plate; 4: signal-processing board; 5: connector between plate; 6: externally serial data interface; 7: heat radiator; 8: heat conduction beam; 9: seal gasket; 10: injecting glue mounting screw; 11: shock absorbing ring; 12: metal mounting hole; 13: interior metal skeleton.
Embodiment
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
Embodiment:
A kind of small-sized millimetre-wave radar sensor device, comprising: housing, radio-frequency receiving-transmitting plate, signal-processing board.Direct-connected by connector between described radio-frequency receiving-transmitting plate and signal-processing board; Described housing is rigidly connected with radio-frequency receiving-transmitting plate and signal-processing board respectively.Shock absorbing ring adopts vulcanie material, and upper body adopts PEI material, inner installation radio-frequency receiving-transmitting plate.Lower case adopts aluminum alloy material, inner installs signal-processing board, and reserves opening for external interface.The two is rigidly connected, and there is seal gasket centre, and installation screw hole notes silica gel sealing.The built-in heat conduction beam of housing, there is heat radiator outside, in this way protection circuit plate and key chip.Work under making it more adapt to vehicle-mounted or airborne circumstance.As shown in Figure 1, the allomeric function schematic diagram of this device as shown in Figure 2 for concrete mounting structure.
When specifically using, radio-frequency receiving-transmitting plate produces and by transmission antennas transmit Continuous Wave with frequency modulation, mode of frequency regulation is triangle continuous wave, band limits 76-77GHz, frequency modulation cycle 20-100ms.Electromagnetic beam is after the reflection of front barrier, and receiving antenna receives echo and Frequency mixing processing, obtains intermediate-freuqncy signal and gives signal-processing board.Analog-to-digital conversion module in signal-processing board receives the intermediate-freuqncy signal from radio-frequency receiving-transmitting plate, be converted into digital signal and be transferred to the laggard row relax of digital signal processing module core, obtain target information, and by serial communication interface, information is passed to alarm or the controller of rear end, thus realize giving warning in advance to dangerous situation.
This device also comprises shock absorbing ring, as shown in Figure 5.It is outside that shock absorbing ring is wrapped in shell flange dish, and adopt vulcanie material, inside has metallic framework to support, and improves intensity not easily deformation.Not only can damping, but also can enhanced leaktightness effect.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a small-sized millimetre-wave radar sensor device, is characterized in that, comprising: housing, radio-frequency receiving-transmitting plate, signal-processing board; Be electrically connected between described radio-frequency receiving-transmitting plate and signal-processing board; Described housing is rigidly connected with radio-frequency receiving-transmitting plate and signal-processing board respectively, and radio-frequency receiving-transmitting plate and signal-processing board are arranged on enclosure interior.
2. the small-sized millimetre-wave radar sensor device of one according to claim 1, is characterized in that, direct-connected by connector between described radio-frequency receiving-transmitting plate and signal-processing board.
3. the small-sized millimetre-wave radar sensor device of one according to claim 1, it is characterized in that, described housing comprises upper body, lower case and shock absorbing ring; Upper body and lower case are rigidly connected, and have seal gasket between the two surface of contact; After upper body and lower case have been assembled, the ring flange that shock absorbing ring is enclosed within upper body and lower case is outside; Upper body adopts PEI material, inner installation radio-frequency receiving-transmitting plate; Lower case adopts aluminum alloy material, and inner installation signal-processing board, and reserved aperture position, for installing the external interface of signal-processing board; The built-in heat conduction beam of housing, there is heat radiator outside.
4. the small-sized millimetre-wave radar sensor device of one according to claim 3, it is characterized in that, described shock absorbing ring adopts vulcanie material, the corner of shock absorbing ring there is screw hole, screw hole is metal material, be nested in vulcanie, have metal support to be connected to each other between four metallic screw holes, metal support is embedded in vulcanie; Small-sized millimetre-wave radar sensor device is by the corner screw hole support mounted externally of shock absorbing ring or installing plate.
5. the small-sized millimetre-wave radar sensor device of one according to claim 1, is characterized in that, described radio-frequency receiving-transmitting plate, comprises emitting antenna, receiving antenna, power amplifier module, frequency mixing module and frequently combines module; Emitting antenna and power amplifier module are electrically connected, and receiving antenna and frequency mixing module are electrically connected, and comprehensive module and power amplifier module, frequency mixing module are electrically connected respectively frequently.
6. the small-sized millimetre-wave radar sensor device of one according to claim 5, it is characterized in that, radio-frequency receiving-transmitting plate produce and by transmission antennas transmit Continuous Wave with frequency modulation, mode of frequency regulation is triangle continuous wave, wavelength band 76-77GHz, frequency modulation cycle 20-100ms, electromagnetic beam is after the reflection of front barrier, receiving antenna receives echo and Frequency mixing processing, obtains intermediate-freuqncy signal and gives signal-processing board.
7. the small-sized millimetre-wave radar sensor device of one according to claim 1, is characterized in that described signal-processing board comprises analog-to-digital conversion module, control module, digital signal processing module, supply module and external interface; Analog-to-digital conversion module, to be electrically connected between control module and digital signal processing module.
8. the small-sized millimetre-wave radar sensor device of one according to claim 7, is characterized in that, analog-to-digital conversion module receives the intermediate-freuqncy signal from radio-frequency receiving-transmitting plate, is converted into digital signal; Digital signal processing module receives digital signal, carries out signal transacting, extracts target information, comprises the relative distance between radar sensor and target, relative velocity and echo incident angle information; Control module sends control command, and the frequency of control radio-frequency receiving-transmitting plate is combined module and produced satisfactory radio frequency electromagnetic.
9. the small-sized millimetre-wave radar sensor device of one according to claim 7, it is characterized in that, serial communication stitch and power pin is comprised in external interface wherein on signal-processing board, serial communication stitch can be connected by signal wire with alarm or controller, is responsible for outwards transmitting target information; Power pin is used for connecting external power supply and supply module.
10. the small-sized millimetre-wave radar sensor device of one according to claim 7, it is characterized in that, this device is powered by external power supply, power lead two ends connect external power supply and external interface power pin respectively, be connected to the supply module of signal-processing board again by external interface power pin, then via signal-processing board, electric energy be sent to radio-frequency receiving-transmitting plate.
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| CN201520738847.XU CN205067739U (en) | 2015-09-23 | 2015-09-23 | Small -size millimeter wave radar sensor device |
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| CN201520738847.XU CN205067739U (en) | 2015-09-23 | 2015-09-23 | Small -size millimeter wave radar sensor device |
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| CN106019285A (en) * | 2016-08-16 | 2016-10-12 | 上海航天测控通信研究所 | Micro unmanned aerial vehicle millimeter-wave radar |
| CN106061180A (en) * | 2016-06-03 | 2016-10-26 | 中国恩菲工程技术有限公司 | Airborne control box |
| 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 |
| CN107783547A (en) * | 2016-08-25 | 2018-03-09 | 大连楼兰科技股份有限公司 | Post disaster relief rotor wing unmanned aerial vehicle obstacle avoidance system and method |
| CN107783545A (en) * | 2016-08-25 | 2018-03-09 | 大连楼兰科技股份有限公司 | Post disaster relief rotor wing unmanned aerial vehicle obstacle avoidance system based on OODA ring multi-sensor information fusions |
| CN108169750A (en) * | 2018-02-07 | 2018-06-15 | 惠州市德赛西威汽车电子股份有限公司 | A kind of vehicle-mounted millimeter wave radar system |
| CN108205136A (en) * | 2016-12-20 | 2018-06-26 | 北京行易道科技有限公司 | radar and detection device |
| CN108267734A (en) * | 2016-12-30 | 2018-07-10 | 北京行易道科技有限公司 | Radar |
| CN108897331A (en) * | 2018-05-11 | 2018-11-27 | 安徽尼古拉电子科技有限公司 | A kind of aircraft altitude control method and system based on Radar Technology |
| CN110174669A (en) * | 2019-05-17 | 2019-08-27 | 常州第四无线电厂有限公司 | A kind of hand-held wall-through radar device |
| CN110501688A (en) * | 2019-09-24 | 2019-11-26 | 上海邺格机电设备有限公司 | Vision radar |
| CN110794372A (en) * | 2019-11-12 | 2020-02-14 | 长沙莫之比智能科技有限公司 | Millimeter wave radar and unmanned aerial vehicle multi-target height measurement method based on millimeter wave radar |
| CN112204415A (en) * | 2019-11-04 | 2021-01-08 | 深圳市大疆创新科技有限公司 | Sensor and movable platform |
| 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 |
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- 2015-09-23 CN CN201520738847.XU patent/CN205067739U/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN106061180A (en) * | 2016-06-03 | 2016-10-26 | 中国恩菲工程技术有限公司 | Airborne control box |
| CN106061180B (en) * | 2016-06-03 | 2021-06-01 | 中国恩菲工程技术有限公司 | Airborne control box |
| CN106019285B (en) * | 2016-08-16 | 2020-08-18 | 上海航天测控通信研究所 | Millimeter wave radar of micro unmanned aerial vehicle |
| CN106019285A (en) * | 2016-08-16 | 2016-10-12 | 上海航天测控通信研究所 | Micro unmanned aerial vehicle millimeter-wave radar |
| CN107783545A (en) * | 2016-08-25 | 2018-03-09 | 大连楼兰科技股份有限公司 | Post disaster relief rotor wing unmanned aerial vehicle obstacle avoidance system based on OODA ring multi-sensor information fusions |
| CN107783547A (en) * | 2016-08-25 | 2018-03-09 | 大连楼兰科技股份有限公司 | Post disaster relief rotor wing unmanned aerial vehicle obstacle avoidance system and method |
| CN107783545B (en) * | 2016-08-25 | 2021-04-27 | 大连楼兰科技股份有限公司 | Obstacle avoidance system of post-disaster rescue rotor unmanned aerial vehicle based on OODA (object oriented data acquisition) ring multi-sensor information fusion |
| CN108205136A (en) * | 2016-12-20 | 2018-06-26 | 北京行易道科技有限公司 | radar and detection device |
| CN108267734A (en) * | 2016-12-30 | 2018-07-10 | 北京行易道科技有限公司 | Radar |
| CN108169750A (en) * | 2018-02-07 | 2018-06-15 | 惠州市德赛西威汽车电子股份有限公司 | A kind of vehicle-mounted millimeter wave radar system |
| CN108897331A (en) * | 2018-05-11 | 2018-11-27 | 安徽尼古拉电子科技有限公司 | A kind of aircraft altitude control method and system based on Radar Technology |
| CN110174669A (en) * | 2019-05-17 | 2019-08-27 | 常州第四无线电厂有限公司 | A kind of hand-held wall-through radar device |
| CN110174669B (en) * | 2019-05-17 | 2024-02-27 | 常州第四无线电厂有限公司 | Handheld through-wall radar device |
| CN110501688A (en) * | 2019-09-24 | 2019-11-26 | 上海邺格机电设备有限公司 | Vision radar |
| CN112204415A (en) * | 2019-11-04 | 2021-01-08 | 深圳市大疆创新科技有限公司 | Sensor and movable platform |
| WO2021087697A1 (en) * | 2019-11-04 | 2021-05-14 | 深圳市大疆创新科技有限公司 | Sensor and movable platform |
| CN110794372A (en) * | 2019-11-12 | 2020-02-14 | 长沙莫之比智能科技有限公司 | Millimeter wave radar and unmanned aerial vehicle multi-target height measurement method based on millimeter wave radar |
| 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 |
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