CN106772399A - Wireless exploration radar installations and its detection method - Google Patents
Wireless exploration radar installations and its detection method Download PDFInfo
- Publication number
- CN106772399A CN106772399A CN201611255614.XA CN201611255614A CN106772399A CN 106772399 A CN106772399 A CN 106772399A CN 201611255614 A CN201611255614 A CN 201611255614A CN 106772399 A CN106772399 A CN 106772399A
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- 238000001514 detection method Methods 0.000 title claims abstract description 55
- 238000009434 installation Methods 0.000 title claims abstract description 39
- 238000004891 communication Methods 0.000 claims abstract description 23
- 238000012545 processing Methods 0.000 claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000000523 sample Substances 0.000 claims description 34
- 230000005059 dormancy Effects 0.000 claims description 3
- 230000000284 resting effect Effects 0.000 claims description 3
- 241000736199 Paeonia Species 0.000 description 6
- 235000006484 Paeonia officinalis Nutrition 0.000 description 6
- 230000008054 signal transmission Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 241001269238 Data Species 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000256844 Apis mellifera Species 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
- G01S15/931—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Traffic Control Systems (AREA)
Abstract
The present invention provides a kind of wireless exploration radar installations, including receiver and detector, and the receiver carries out radar detection with the communication control detector；Traffic information of the detector as obtained by vehicle body ground wire with communication feedback detection to the receiver, to show that traffic information and buzzer send alarming sound by external display after the receiver reception processing；Method corresponding to it is also provided, it is as follows：After receiver detects brake and/or astern signal, work order is sent to detector with the first high-frequency wireless signals, working condition is entered to wake up it；The receiver is received the detector and enters the traffic information fed back by the second high-frequency wireless signals after working condition；The receiver is changed the traffic information and is transmitted to external display display traffic information and buzzer and sends warning.Such scheme is by radio communication, easy installation procedure, the limitation of the transmission range that breaks traditions.
Description
Technical field
The present invention relates to auto parts machinery and technical field of vehicle safety, specifically, the present invention relates to a kind of wireless exploration
Radar installations and its detection method.
Background technology
With the development of science and technology adding on original vehicle, matches somebody with somebody device all the more diversification, it is contemplated that when vehicle brake, reversing
Safety issue, detection radar is widely used in automobile measurement body of a motor car and the obstacle around it in brake, reversing
The distance between thing, reminds driver to take care spacing accurate distance by the display device in driver's cabin and buzzer.
In the prior art, the radar installations for typically taking wired connection mode to connect, when mounted, typically installs main frame
In driver's cabin, display and buzzer are arranged on instrument desk, and probe is arranged on headstock, the shield thick stick of the tailstock.Due to radar
The external part of device is dispersed to each position of locomotive so that the distance between each part farther out, connects required installation
Line is tediously long, and vehicle body complex structure in itself, causes span of the hookup wire on locomotive larger, increases the scope for tearing car open, and this is not
The substantial amounts of set-up time is only needed, and increased the cost for installing radar installations.And when headstock is installed and popped one's head in, the probe of Chinese herbaceous peony
Hookup wire then need to bypass engine and be connected on radar host computer through fire wall, this must cause the breaking-up of fire wall, more
It is likely to result in driver's cabin water inlet and increases in-car noise.But in Chinese herbaceous peony installation probe but it is vehicle traveling intellectuality progressively
An essential part, even and if in wireless radar, when it will realize headstock tailstock radar for backing car, due to radar master
Machine must be arranged on car body rear, and be wired connection mode between radar host computer probe and radar host computer so that the installation of probe is received
Radar host computer and body structure are formed on, Chinese herbaceous peony probe needs also exist for bypassing engine through fire wall connection radar host computer, still
Occur that above-mentioned wired radar installs caused problem, the advantage of wireless connection can not be embodied, and its installation method is uncomfortable
For body car long.
The content of the invention
Primary and foremost purpose of the invention aims to provide a kind of installation simply, suitable for the wireless preceding spy radar installations of car body long；
Secondary objective of the invention aims to provide a kind of wireless preceding spy radar detection method corresponding with said apparatus.
To achieve these goals, the present invention provides following technical scheme：
In a first aspect, the present invention provides a kind of wireless exploration radar installations, including receiver and it is arranged on the spy of Chinese herbaceous peony
Device is surveyed, the receiver carries out radar detection with the communication control detector；The detector is by vehicle body ground
Line with the traffic information obtained by communication feedback detection to the receiver, to lead to after the receiver reception processing
Cross external display and show that traffic information and/or buzzer send alarming sound.
Wherein, the receiver is including the first central processing unit for planning as a whole control, for communication control
Making the detector carries out the first reception wireless module, anti-with communication for receiving the detector of radar detection
Present the second reception wireless module of the traffic information obtained by detection, transmit the defeated of traffic information for first central processing unit
Exit port, for first central processing unit feedback vehicle travel condition input port and for being supplied to internal circuit
First power module of electricity.
Wherein, the second reception wireless module includes radio receiving unit and the first interface of the ground wire.
Wherein, the input port is brake signal input port and astern signal input port.
Wherein, the detector include for plan as a whole control the second central processing unit, for the receiver with nothing
The first detection wireless module that line communication mode is communicated, for the traffic information obtained by the receiver feedback detection
Second detection wireless module, the ultrasonic wave transmitting for launching and receiving ultrasonic wave receive integrative sensor and ultrasonic wave transmitting
Receiving circuit, the second source module for being powered to internal circuit.
Wherein, the second detection wireless module includes wireless transmitting unit and the second interface of the ground wire.
Wherein, the second source module is electrically connected with the ultrasonic wave transceiver circuit, to power.
Wherein, the ultrasonic wave transmitting receives integrative sensor and includes a plurality of probes, and a plurality of probes point
An Zhuan not headstock and/or the tailstock.
Further, the detector also includes：Passage switches electronic switch, for switching the different probe work of selection
And receive, transmit work probe road condition data；Selective frequency amplifier circuit, for amplifying the passage switching electronic switch transmission
Work probe road condition data is simultaneously transferred to central processing unit.
Second aspect, the present invention provides a kind of wireless exploration radar detection method, the wireless exploration as described in first aspect
Radar installations is performed, and the method is comprised the following steps：Receiver detect brake and/or astern signal after, with the first high frequency without
Line signal sends work order to detector, and working condition is entered to wake up the detector；The receiver receives the spy
Survey device and enter the traffic information fed back by the second low-frequency wireless signals after working condition；The receiver changes the road conditions letter
Cease and transmit to external display display traffic information and buzzer and send alarming sound.
Further, frequency of the frequency of first high-frequency wireless signals higher than the second high-frequency wireless signals.
More preferably, also including step：When the receiver detect brake and/or astern signal before, with the first high frequency without
Line signal sends standby or dormancy instruction to the detector, so that the detector enters standby or resting state.
Wherein, his probing head of prying into of headstock and/or the tailstock is controlled to enter driving after the detector is into working condition
The detection of traveling road conditions.
Compared to existing technology, the solution of the present invention has advantages below：
The present invention provides a kind of detection radar device and its corresponding detection method, including receiver by wireless
Antenna carries out signal transmission control detector and is operated, and detector detection obtains surrounding road condition information in vehicular motion
Signal transmission is carried out by vehicle body ground wire afterwards and feeds back related traffic information to receiver, after receiver reception processing traffic information
Alarm is made by display and buzzer.Wherein, by using radio communication in this programme, it is connected without wire rod,
Simple installation, reduces installation cost；Further, in the detection radar device of this programme, probe is with detector with wired
Mode is attached installed in car body front, and is led to by wireless antenna and vehicle body ground wire between detector and receiver
News, it passes through the first high-frequency signal is carried out wake-up to detector, is communicated by the second high-frequency signal, which reduce because
The interference that two-way communication brings, strengthens the stability of signal transmission, while its signal transmission is no longer subject to because of transmission range
Limitation, further, since it has borrowed vehicle body ground wire being communicated so that its without additionally connecting up, reduce installation difficulty and into
This, and be conducive to breaking away from the stability that signal transmission was limited and can further improve signal transmission by transmission range, therefore
The preceding spy radar installations of this programme is applied to car body long.
The additional aspect of the present invention and advantage will be set forth in part in the description, and these will become from the following description
Obtain substantially, or recognized by practice of the invention.
Brief description of the drawings
The above-mentioned and/or additional aspect of the present invention and advantage will become from the following description of the accompanying drawings of embodiments
Substantially and be readily appreciated that, wherein：
Fig. 1 is the wiring diagram of the wireless exploration radar installations of one embodiment of the invention.
Fig. 2 is the schematic diagram of the wireless exploration radar installations receiver of one embodiment of the invention.
Fig. 3 is the schematic diagram of the wireless exploration radar installations detector of one embodiment of the invention.
Fig. 4 is the FB(flow block) of the wireless exploration radar detection method of one embodiment of the invention.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
It is exemplary to scheme the embodiment of description, is only used for explaining the present invention, and is not construed as limiting the claims.
Embodiment one
Below in conjunction with the accompanying drawings 1,2,3 and embodiment wireless exploration radar installations of the invention is further described：
Wireless exploration radar installations in the present embodiment includes receiver 12 and detector 13.Wherein, the receiver 12
Radar detection is carried out with the communication control detector 13；The detector 13 is by vehicle body ground wire with radio communication
Traffic information obtained by mode feedback detection to the receiver 12, so as to after the reception processing of the receiver 12 by external
Display 241 shows that traffic information and buzzer 242 send alarming sound.
Further, the receiver 12 is installed in indoor instrument desk, module and its company that its circuit is specifically included
Connect relation as follows：Including the first central processing unit 21 for planning as a whole control, for controlling the detection with communication
Device 13 carries out the first reception wireless module 22 of radar detection, feeds back spy with communication for receiving the detector 13
Second reception wireless module 23 of traffic information obtained by survey, for the defeated of first central processing unit 21 transmission traffic information
Exit port 24, for first central processing unit 21 feedback vehicle travel condition input port 25 and for inside
The first power module 26 that circuit is powered.
Further, the second reception wireless module 23 includes the road conditions letter for receiving the feedback of the detector 13
The interface of the ground wire 232 of radio receiving unit 231 and first of breath；The input port 25 is the brake of input brake level signal
The astern signal input port 252 of signal input port 251 and input reversing level signal.
On the other hand, the receiver 12 also includes change over adapter 121 and can connect existing single line communication display
Explicit interface 122；Wherein, the change over adapter 121 includes ACC power inputs joint 1211, reversing level signal input adapter
1212nd, brake level signal input adapter 1213 and ground connection input adapter 1214.
Further, the detector 13 is installed in Vehicular body front and/or rear vehicle enging cabin, and it is specifically included
For plan as a whole control the second central processing unit 31, for communicated with communication with the receiver 12 first
Detection wireless module 32, for the second detection wireless module 33 to the traffic information obtained by the feedback detection of the receiver 12,
Ultrasonic wave for launching and receiving ultrasonic wave is launched reception integrative sensor 34 and ultrasonic wave transceiver circuit 35, is used for
To the second source module 36 that internal circuit is powered.
Further, the second detection wireless module 33 is included for the wireless of the traffic information obtained by emission detection
The interface of the ground wire 332 of transmitter unit 331 and second；The second source module 36 and the electricity of the ultrasonic wave transceiver circuit 35
Property connection, to power；The ultrasonic wave transmitting receives integrative sensor 34 and includes a plurality of probes 341, and the probe
341 are arranged on headstock and/or the tailstock, and specifically, the probe is laid in the way of spacer ring is around headstock and/or the tailstock.Wherein,
Probe 341, the ultrasonic wave transmitting receives the wired connection of integrative sensor 34.
On the other hand, the detector 13 also includes that the passage being bi-directionally connected with the ultrasonic wave transceiver circuit 35 is cut
Change electronic switch 37 and selective frequency amplifier circuit 38.Wherein, the passage switching electronic switch 37 is used to switch the different spies of selection
First 341 work and reception, transmission work 341 road condition datas of probe；The selective frequency amplifier circuit 38 is used to amplify the passage
Work 341 road condition datas of probe of the switching transmission of electronic switch 37 are simultaneously transferred to the second central processing unit 31.
Specifically, the operation principle of described device is as follows：
When touching on the brake or moveing backward, receiver 12 receives brake or astern signal, will be processed by the first center
Unit 21 controls coupled first to receive wireless module 22 to the sending signal of detector 13, the first detection of detector 13
Wireless module 32 receives the first high-frequency wireless signals from receiver 13 and is transferred to the second CPU 31, so as to sentencing
It is disconnected whether to open radar detection；If being judged as, opening radar is detected, and the second central processing unit 31 will give second source mould
Block 36 applies certain cut-in voltage, is the control source that ultrasonic wave transceiver circuit 35 provides 8V, and gives passage switching
Electronic switch 37 send instruction make its be switched at least one ultrasonic wave transmitting receive integrative sensor 34 work, ultrasonic wave transmitting
The probe 341 for receiving integrative sensor 34 sends and receives ultrasonic wave, and the analog signal for receiving is transmitted further to ultrasonic wave transmitting
Receiving circuit 35 and passage switching electronic switch 37 are transmitted to selective frequency amplifier circuit 38 and do signal enhanced processing, and send therewith to
Second CPU 31, the second CPU 31 passes through the second detection wireless after converting the signal into traffic information
Module 33 is sent to receiver 13；Second reception wireless module 23 of receiver 12 receives the road conditions letter from the feedback of detector 13
Breath, and after doing digital-to-analogue conversion, be sent to the first CPU 21 and process, and the image information and voice data of generation are led to
Output port 24 is crossed to be sent in display 241 and buzzer 242.
Embodiment two
Below in conjunction with the accompanying drawings 4 and embodiment to it is of the invention it is wireless before visit radar detection method and be further described：
After S41 receivers detect brake and/or astern signal, with the first high-frequency wireless signals to detector transmission work
Instruction, working condition is entered to wake up the detector；
Specifically, corresponding to two kinds of detected signals, correspondence has following working condition to receiver：
(1) brake signal (generally 12V level signals) is detected
After receiver receives brake signal, transmitting one is indicated into the work order of detection front road condition data to installation
Working condition is fed them into the detector of car body.
(2) astern signal (generally 12V level signals) is detected
After receiver receives brake signal, one will be launched and indicate the work order of detection both sides road condition data to installation
Working condition is fed them into the detector of car body.
Further, when the receiver detect brake and/or astern signal before, will with the first high-frequency wireless signals to
The detector sends standby or dormancy instruction, so that the detector enters standby or resting state, improves the present embodiment pair
The utilization rate of power supply, the working life for lengthening receiver and detector.
Receiver described in S42 is received the detector and enters the road fed back by the second high-frequency wireless signals after working condition
Condition information；
Specifically, the radar detection probe of headstock and/or the tailstock is controlled after the detector is into working condition to be carried out
The detection of vehicle traveling road conditions.Preferably, the working condition on popping one's head in has following situation：
It is only used as Chinese herbaceous peony sonde-type radar (i.e. wireless exploration radar installations is installed only at headstock)
When brake signal is detected, all probe work of control headstock；When astern signal is detected, control headstock is complete
Portion's probe work, preferably controls the probe work of headstock both sides.
It is only used as sonde-type radar (i.e. wireless exploration radar installations is installed only at the tailstock) after car
When brake signal is detected, all probe work of the control tailstock, the preferably work of tailstock both sides probe；Work as detection
During to astern signal, all probe work of the control tailstock.
Sonde-type radar after Chinese herbaceous peony car (i.e. wireless exploration radar installations is arranged on headstock and the tailstock simultaneously)
When brake signal is detected, control car body all probe work, preferably headstock whole and tailstock both sides is visited
Head work；When astern signal is detected, all probe work of control car body, preferably headstock both sides and the tailstock are all popped one's head in
Work.
Receiver described in S43 is changed the traffic information and is transmitted to external display and shows traffic information and/or honeybee
Ring device sends alarming sound.
In the present embodiment, it is mainly the device provided embodiment one and carries out with performing, and receiver is by wireless
The high-frequency signal of antenna transmission first is controlled to detector, and detector transmits the second high-frequency signal and carries out letter by vehicle body ground wire
Number feedback；The interference in two-way communication is which reduced, the stability of communication is improve, even more signal is carried out using vehicle body ground wire
Transmission, has broken limitation of the conventional transfer techniques to its transmission range.
The above is only some embodiments of the invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (13)
1. a kind of wireless exploration radar installations, it is characterised in that including receiver and detector, the receiver is with channel radio
Letter mode controls the detector to carry out radar detection；The detector is by vehicle body ground wire with communication feedback detection
The traffic information of gained to the receiver, to show that road conditions are believed by external display after the receiver reception processing
Breath and/or buzzer send alarming sound.
2. wireless exploration radar installations according to claim 1, it is characterised in that the receiver is included for planning as a whole to control
First central processing unit of system, for communication control the detector carry out radar detection the first reception it is wireless
It is module, wireless with second of the traffic information obtained by low frequency wireless communication mode feedback detection the reception for receiving the detector
Module, for first central processing unit transmission traffic information output port, for anti-to first central processing unit
Present the input port and the first power module for being powered to internal circuit of vehicle travel condition.
3. wireless exploration radar installations according to claim 2, it is characterised in that the second reception wireless module includes
Radio receiving unit and the first interface of the ground wire for receiving the traffic information of the detector feedback.
4. wireless exploration radar installations according to claim 2, it is characterised in that the input port is that brake signal is defeated
Inbound port and astern signal input port.
5. wireless exploration radar installations according to claim 1, it is characterised in that the detector is included for planning as a whole to control
System the second central processing unit, for communicated with communication with the receiver the first detection wireless module,
For the second detection wireless module to the traffic information obtained by the receiver feedback detection, for launching and receiving ultrasonic wave
Ultrasonic wave transmitting receive integrative sensor and ultrasonic wave transceiver circuit, the second source for being powered to internal circuit
Module.
6. wireless exploration radar installations according to claim 5, it is characterised in that the second detection wireless module includes
Wireless transmitting unit and the second interface of the ground wire for the traffic information obtained by emission detection.
7. wireless exploration radar installations according to claim 5, it is characterised in that the second source module is super with described
Acoustic emission receiving circuit is electrically connected with, to power.
8. wireless exploration radar installations according to claim 5, it is characterised in that the ultrasonic wave transmitting receives one and passes
Sensor includes a plurality of probes, and a plurality of probes are separately mounted to headstock and/or the tailstock.
9. wireless exploration radar installations according to claim 8, it is characterised in that the detector also includes：
Passage switches electronic switch, for switching selection different probes work and reception, transmission work probe road condition data；
Selective frequency amplifier circuit, for amplifying the work probe road condition data of passage switching electronic switch transmission and being transferred to the
Two central processing units.
10. a kind of wireless exploration radar detection method, it is characterised in that the wireless exploration as described in any one of claim 1~9
Radar installations is performed, and the method is comprised the following steps：
After receiver detects brake and/or astern signal, work order is sent to detector with the first high-frequency wireless signals, with
Wake up the detector and enter working condition；
The receiver is received the detector and enters the traffic information fed back by the second high-frequency wireless signals after working condition；
The receiver is changed the traffic information and is transmitted to external display display traffic information and/or buzzer and sends
Alarming sound.
11. wireless exploration radar detection methods according to claim 10, it is characterised in that the first high frequency wireless communication
Number frequency higher than the second high-frequency wireless signals frequency.
12. wireless exploration radar detection methods according to claim 10, it is characterised in that also including step：
Before the receiver detects brake and/or astern signal, sent to the detector with the first high-frequency wireless signals
Standby or dormancy instruction, so that the detector enters standby or resting state.
13. wireless exploration radar detection methods according to claim 10, it is characterised in that when the detector enters work
Making to control after state the radar detection probe of headstock and/or the tailstock carries out the detection of vehicle traveling road conditions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611255614.XA CN106772399B (en) | 2016-12-30 | 2016-12-30 | Wireless detection radar device and detection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611255614.XA CN106772399B (en) | 2016-12-30 | 2016-12-30 | Wireless detection radar device and detection method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106772399A true CN106772399A (en) | 2017-05-31 |
| CN106772399B CN106772399B (en) | 2024-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611255614.XA Active CN106772399B (en) | 2016-12-30 | 2016-12-30 | Wireless detection radar device and detection method thereof |
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| Country | Link |
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| CN (1) | CN106772399B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884628A (en) * | 2017-12-11 | 2018-04-06 | 中车青岛四方机车车辆股份有限公司 | A kind of measurement apparatus and rail vehicle of rail vehicle low frequency electromagnetic field |
| CN111220989A (en) * | 2020-01-17 | 2020-06-02 | 铁将军汽车电子股份有限公司 | Obstacle detection method and apparatus |
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| CN203204152U (en) * | 2012-09-28 | 2013-09-18 | 广东铁将军防盗设备有限公司 | Wireless automobile backing radar device |
| CN203902481U (en) * | 2014-06-03 | 2014-10-29 | 郑州大学 | Automobile keyless access control system |
| US20150130589A1 (en) * | 2013-11-12 | 2015-05-14 | Alps Electric Co., Ltd. | Keyless entry system |
| CN206431293U (en) * | 2016-12-30 | 2017-08-22 | 铁将军汽车电子股份有限公司 | Wireless exploration radar installations |
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| JP2005323306A (en) * | 2004-05-11 | 2005-11-17 | Li Shi Xiong | Wireless back radar system |
| CN201699783U (en) * | 2010-03-05 | 2011-01-05 | 广州市京龙工程机械有限公司 | Construction lifter calling device based on 380V cable ground wire communication |
| CN203204152U (en) * | 2012-09-28 | 2013-09-18 | 广东铁将军防盗设备有限公司 | Wireless automobile backing radar device |
| US20150130589A1 (en) * | 2013-11-12 | 2015-05-14 | Alps Electric Co., Ltd. | Keyless entry system |
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| CN111220989A (en) * | 2020-01-17 | 2020-06-02 | 铁将军汽车电子股份有限公司 | Obstacle detection method and apparatus |
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| Publication number | Publication date |
|---|---|
| CN106772399B (en) | 2024-03-26 |
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