CN108508448A - A kind of off host radar for backing car - Google Patents
A kind of off host radar for backing car Download PDFInfo
- Publication number
- CN108508448A CN108508448A CN201810451155.5A CN201810451155A CN108508448A CN 108508448 A CN108508448 A CN 108508448A CN 201810451155 A CN201810451155 A CN 201810451155A CN 108508448 A CN108508448 A CN 108508448A
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- CN
- China
- Prior art keywords
- probe
- radar
- host
- middle control
- pins
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Traffic Control Systems (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention belongs to automobile technical fields, and in particular to a kind of off host radar for backing car.The off host radar for backing car, including auto loud hailer, middle control host and multiple radar probes, the radar probe includes ID pins, grounding pin, data pin and power pins, the data pin of each radar probe is separately connected a LIN communication bus, and the grounding pin of each radar probe, power pins are grounded respectively, power cord；The loud speaker that middle control host is located at vehicle different location according to azimuth-range information-driven sends out alarm sound.Advantage is：It is pre-configured with representative probe quantity and parameter information by middle control host, it receives master control radar probe and sends obstacle information, driving sends out alarm sound positioned at the loud speaker of vehicle different location, driver according to alarm sound can easily disturbance in judgement object distance and bearing, effectively increase safety when driver's reversing.
Description
Technical field
The invention belongs to automobile technical fields, and in particular to a kind of off host radar for backing car.
Background technology
Traditional reverse radar system is commonly configured with two to four radar probes, a host（Controller）, an independence
Buzzer or buzzer integrated design are in host.System detects obstructing objects by each probe, when detection range reaches
When to alert if, system carries out audible alarm prompt by host driven buzzer.With the development of technology, radar for backing car system
System in addition to carry out audible alarm prompt, can also by host and vehicle bus module communication, for example with instrument, middle control display screen
Connection and communication are carried out at the same time radar for backing car image by instrument or middle control display screen and show alarm, improve reversing thunder
Up to the instrumentality of system.
Invention content
In order to compensate for the shortcomings of the prior art, the present invention provides a kind of off host radar for backing car.
The present invention is achieved through the following technical solutions：
A kind of off host radar for backing car, including auto loud hailer, middle control host and multiple radar probes, the radar probe include
The data pin of ID pins, grounding pin, data pin and power pins, each radar probe is separately connected a LIN communications always
Line, the grounding pin of each radar probe, power pins are grounded respectively, power cord；One of radar probe as main probe,
Other probes as from probe, can automatic identification its installation site, control host in main probe ID pins connection, system is with autodiagnosis
Disconnected function, after system electrification, whether the work of main radar probe detection system is normal, and to middle control host transmission self-test information, has
When barrier, by obstacle distance and azimuth information by LIN bus transfers to middle control host, middle control host is according to azran
The loud speaker for being located at vehicle different location from information-driven sends out alarm sound.
Further, the radar probe includes microcontroller, communication module, ultrasonic probe and power module, and each radar is visited
The internal structure all same of head, ensures the interlinking of each probe function, to improve its versatility, each radar probe with
Core, generation ultrasonic pulse, driving ultrasonic probe send ultrasonic wave to microcontroller in order to control, and ultrasonic probe unit receives
Return signal, amplification are delivered to microcontroller, microcontroller acquired disturbance object range information through analyzing processing after being filtered.
The beneficial effects of the invention are as follows：It is pre-configured with probe quantity and parameter information is represented, is connect by middle control host
It receives master control radar probe and sends obstacle information, driving sends out alarm sound positioned at the loud speaker of vehicle different location, drives
Member according to alarm sound can easily disturbance in judgement object distance and bearing, effectively increase safety when driver's reversing.
Description of the drawings
The present invention will be further described below with reference to the drawings.
Attached drawing 1 is off host radar system block diagram；
Attached drawing 2 is off host Principles of Radar figure.
Specific implementation mode
Attached drawing 1-2 is a kind of specific embodiment of the present invention.A kind of off host radar for backing car of the invention, including automobile are raised one's voice
Device, middle control host and multiple radar probes, the radar probe include ID pins, grounding pin, data pin and power pins,
The data pin of each radar probe is separately connected a LIN communication bus, the grounding pin of each radar probe, power pins difference
Ground wire, power cord；For one of radar probe as main probe, other probes, can automatic identification its installation as from probe
Position, controls host in the connection of main probe ID pins, system has a self-diagnostic function, and after system electrification, main radar is popped one's head in detection system
Whether work of uniting is normal, and sends self-test information to middle control host, and when having barrier, obstacle distance and azimuth information are passed through
LIN bus transfers to middle control host, middle control host is located at the loud speaker of vehicle different location according to azimuth-range information-driven
Send out alarm sound.
Further, the radar probe includes microcontroller, communication module, ultrasonic probe and power module, and each radar is visited
The internal structure all same of head, ensures the interlinking of each probe function, to improve its versatility, each radar probe with
Core, generation ultrasonic pulse, driving ultrasonic probe send ultrasonic wave to microcontroller in order to control, and ultrasonic probe unit receives
Return signal, amplification are delivered to microcontroller, microcontroller acquired disturbance object range information through analyzing processing after being filtered.
A kind of off host radar for backing car of the invention, when use：
1）When system electrification, the distinguishing characteristics of the input voltage signal by detecting each radar probe, to identify each radar
The positioning of probe and to each radar probe distribute ID number；
2）Normal first probe of default is the main probe of system, remaining radar probe is popped one's head in for subordinate；
3）Main probe instruction subordinate probe self-test, and self-test is received as a result, after all probe states of comprehensive descision, main probe is to bee
Ring device carries out corresponding self-test alarm or self-detection result is sent to vehicle bus module and prompted by main probe；
4）After the completion of system electrification self-test, main probe coordinates each probe sequential working, carries out internal communication, realization warning output and
External communication is carried out with LIN bus modules.
If first probe failure is popped one's head in the defined time second in system electrification because not receiving first
The self-test inquiry message of probe, second probe then serve as based on pop one's head in.
The self test mode of each probe is：
a）All radar probes are without exception, buzzer call voice prompt；
b）When one or several probe failures, the different voice prompt of buzzer call；
c）When all probes fail, buzzer does not pipe.
Each radar probe is ultrasonic wave sensor, and the data for acquisition of popping one's head in include obstacle information and spy that probe obtains
The distance between head information, main probe judge the range data that each probes sense arrives, and will wherein newest range data with preset
Early warning value comparison, corresponding distance and position data obtained according to comparing result, and data are sent to by LIN buses
Host is controlled, drives the loud speaker of different location to send out alarm sound by middle control main clause, when obstacle level is located at vehicle left side, drives
Dynamic left side is raised one's voice work, when barrier is located at vehicle right side, driving right speaker work, and when barrier is located at intermediate, driving
Whole speaker operations, and according to the distance of barrier, the different alarm frequencys is sent out, distance is closer, and alert frequency is higher.
The present invention is not limited to the above-described embodiments, anyone should learn make under the inspiration of the present invention with the present invention
With same or similar technical solution, each fall within protection scope of the present invention.
Technology that the present invention is not described in detail, shape, construction part are known technology.
Claims (2)
1. a kind of off host radar for backing car, including auto loud hailer, middle control host and multiple radar probes, which is characterized in that institute
It includes ID pins, grounding pin, data pin and power pins to state radar probe, and the data pin of each radar probe is separately connected
A piece LIN communication bus, the grounding pin of each radar probe, power pins are grounded respectively, power cord；One of radar is visited
Head is used as main probe, other probes as from probe, can automatic identification its installation site, in main probe ID pins connection control lead
Machine, system has self-diagnostic function, and after system electrification, whether the work of main radar probe detection system is normal, and to middle control host
Self-test information is sent, when having barrier, obstacle distance and azimuth information are passed through into LIN bus transfers to middle control host, middle control
The loud speaker that host is located at vehicle different location according to azimuth-range information-driven sends out alarm sound.
2. a kind of off host radar for backing car according to claim 1, it is characterised in that：The radar probe includes monolithic
Machine, communication module, ultrasonic probe and power module, the internal structure all same of each radar probe ensure each probe work(
Can interlinking, to improve its versatility, each radar probe with microcontroller core in order to control, generates ultrasonic pulse,
Ultrasonic probe is driven to send ultrasonic wave, ultrasonic probe unit receives return signal, and amplification is delivered to monolithic after being filtered
Machine, microcontroller acquired disturbance object range information through analyzing processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810451155.5A CN108508448A (en) | 2018-05-11 | 2018-05-11 | A kind of off host radar for backing car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810451155.5A CN108508448A (en) | 2018-05-11 | 2018-05-11 | A kind of off host radar for backing car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108508448A true CN108508448A (en) | 2018-09-07 |
Family
ID=63400322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810451155.5A Withdrawn CN108508448A (en) | 2018-05-11 | 2018-05-11 | A kind of off host radar for backing car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108508448A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110879392A (en) * | 2019-11-29 | 2020-03-13 | 安徽江淮汽车集团股份有限公司 | Host-free radar ranging alarm method, device, circuit and storage medium |
| CN111366935A (en) * | 2018-12-07 | 2020-07-03 | 深圳市航盛电子股份有限公司 | Radar sensor and no-host multi-probe radar system |
| CN112014844A (en) * | 2019-05-30 | 2020-12-01 | 杭州海康汽车技术有限公司 | Ultrasonic wave transmitting and receiving method, system and device |
-
2018
- 2018-05-11 CN CN201810451155.5A patent/CN108508448A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111366935A (en) * | 2018-12-07 | 2020-07-03 | 深圳市航盛电子股份有限公司 | Radar sensor and no-host multi-probe radar system |
| CN111366935B (en) * | 2018-12-07 | 2022-08-16 | 深圳市航盛电子股份有限公司 | Radar sensor and no-host multi-probe radar system |
| CN112014844A (en) * | 2019-05-30 | 2020-12-01 | 杭州海康汽车技术有限公司 | Ultrasonic wave transmitting and receiving method, system and device |
| CN112014844B (en) * | 2019-05-30 | 2024-05-03 | 杭州海康汽车技术有限公司 | Ultrasonic wave receiving and transmitting method, system and device |
| CN110879392A (en) * | 2019-11-29 | 2020-03-13 | 安徽江淮汽车集团股份有限公司 | Host-free radar ranging alarm method, device, circuit and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180907 |
|
| WW01 | Invention patent application withdrawn after publication |