CN105150928A - Overtaking blind spot monitoring method based on radar sensing - Google Patents
Overtaking blind spot monitoring method based on radar sensing Download PDFInfo
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- CN105150928A CN105150928A CN201510521827.1A CN201510521827A CN105150928A CN 105150928 A CN105150928 A CN 105150928A CN 201510521827 A CN201510521827 A CN 201510521827A CN 105150928 A CN105150928 A CN 105150928A
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Abstract
The invention discloses an overtaking blind spot monitoring method based on radar sensing. The overtaking blind spot monitoring method comprises the steps that firstly, a first radar sensor and a first overtaking indicator lamp are arranged on a left rearview mirror of a vehicle, and a second radar sensor and a second overtaking indicator lamp are arranged on the right rear view of the vehicle; secondly, the states of steering lamps of the vehicle are obtained; when one steering lamp is turned on, the direction of the steering lamp is obtained, the radar sensors are switched on to obtain the distance between an obstacle and the vehicle, so that whether safe overtaking can be conducted is judged; and the corresponding overtaking indicator lamp is turned on for indication. By the adoption of the overtaking blind spot monitoring method based on radar sensing, the areas which a driver cannot see are monitored to relieve most stress of the driver and prevent dangerous situations, and the driver can pay all attention to the front side; and the traffic safety coefficient is greatly increased.
Description
Technical field
The present invention relates to vehicle electric field, particularly relate to a kind of blind monitoring method of overtaking other vehicles based on radar sensing.
Background technology
Vehicle electronics is the general name of car body electronic control device for vehicle and vehicular automotive electronic control setup.Car body electronic control device for vehicle, comprises engine management system, chassis control system and electrical control unit system (body electronics ECU).The most important effect of vehicle electronics improves the safety of automobile, traveling comfort, economy and recreational.With the electric-control system of sensor, microprocessor MPU, actr, tens of even up to a hundred electronic devices and components and parts thereof composition.
Automotive circuit diagram is considered to the revolution in automotive technology development process.The degree of automotive circuit diagram is counted as the important symbol weighing modern automobile level, is used to develop new model, improves the most important technical measures of automotive performance.Automaker thinks that the quantity of increase vehicle electronics, promotion automotive circuit diagram are the important effective means capturing future automobile market.
According to statistics, from 1989 to 2000, the ratio that on average on each car, electronics package is shared in whole Automobile manufacturing cost increases to more than 23% by 16%.On some Pullman saloons, use the quantity of one chip microcomputer to reach 48, electronic product accounts for more than 50% of integral vehicle cost.
Divide according on the impact of running car performance effect, automobile electronics can be summarized as two classes: a class is electronic control device for vehicle, electronic control device for vehicle will with mechanical system on car carry out with the use of, the i.e. auto electroincs of so-called " electric-mechanic control system ", they comprise driving engine, chassis, electrical control unit, such as Jetronic, braking anti-lock control, anti-sliding control, polling power controlling, Electronic control suspension, electronic automatic transmission, electrical power steering etc.; Another kind of is vehicular automotive electronic device, and vehicular automotive electronic device is the electronics package that can independently use under automotive environment, and it there is no direct relation with the performance of automobile itself.They comprise vehicle information system (car running computer), navigationsystem, auto audio equipment and tv entertainment system, Vehicular communication system, equipment for surfing the net etc.
2008 Eltec development direction develop to concentrated Comprehensive Control: by engine management system and automatic transmission control system, be integrated into the Comprehensive Control (PCM) of power drive system; Braking anti-lock control system (ABS), anti-slip regulation (TCS) and anti-slip regulation (ASR) are combined and carries out control for brake; By central chassis controller, by braking, suspension, turn to, power transmission dispatch control system connected by bus.Controller, by complicated control algorithm, is coordinated each subsystem, road holding is controlled to optimum level, form integrated chassis control system (UCC).
Due to sharply increasing of the electronic apparatus device quantity on automobile, in order to reduce the quantity and weight connecting wire, network, bussing technique have a great development during this period.Bussing technique is that various auto electroincs is connected to become a network, is sent and received information by data bus.Electronics package, except the respective controlling functions of complete independently, can also provide data, services for other control setup.Owing to employing the design of networking, simplify wiring, decrease the quantity of electrical node and the consumption of wire, fitting work is more simplified, too increase the reliability that information transmits simultaneously.Can access any one electronic control package by data bus, read failure code carries out trouble diagnosing to it, makes car load maintenance work become more simple.
The application of automotive electronic technology will make automobile that following Main change occurs:
One, also will there is great change in the physical construction of automobile, and the various maneuvering systems of automobile, to electronization and motorized development, realize " line manipulation ".Original mechanical transmission mechanism is replaced, such as " wire braking ", " wire turns to ", " E-gas " etc. with wire.
Two, automobile 12 volts of electric power systems are to 42 volts of conversions.Along with auto electroincs gets more and more, the electric energy of consumption increases significantly.Existing 12 volts of electrical source of power, can not meet the needs of all electric systems on automobile.To adopt integrated actuating machine-electrical generator 42 volts of electric power systems from now on, electrical generator maximum output power will bring up to about 8 kilowatts by 1 kilowatt in 2005, and generating efficiency will reach more than 80%.The enforcement of 42 volts of automotive electrical system new standards, will make the design of car electrics parts and structure that great change occurs, and mechanical relay, fuse wire type protective circuit will be eliminated.
The application of automotive electronic technology will make automobile more intelligent.Intelligent vehicle is equipped with multiple sensors, can the situation of fully perception motorist and passenger, and the information of traffic facilities and ambient environment, judges whether occupant is in optimum regime, and whether vehicle and people can cause danger, and take countermeasure in time.
Existing automobile generally not for the monitoring system of blind spot of overtaking other vehicles, when driver watched rapidly introscope and outer visor and may turn one's head fast quick glance then prepare relieved overtaking other vehicles time, suddenly hear that the note from left side is warned loudly.Driver is easy to leak to see the vehicle of fast approaching from behind on passing track or is positioned at the vehicle with its automobile blind spot region side by side, particularly in the heavy traffic and city traffic of multilane freeway or backbone highway.
Summary of the invention
Technical matters to be solved by this invention is for defect involved in background technology, provides a kind of blind monitoring method of overtaking other vehicles based on radar sensing.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
Based on the blind monitoring method of overtaking other vehicles of radar sensing, it is characterized in that, comprise following steps:
Step 1), the left-hand mirror of car arranges the first radar sensor and the first overtaking indicating light;
Step 2), the right rear view mirror of car arranges the second radar sensor and the second overtaking indicating light;
Step 3), obtains the state of vehicle turn signal;
Step 3.1), if the left steering lamp of vehicle is opened;
Step 3.1.1), adopt the distance between the first radar sensor acquisition automobile left side obstacle and automobile;
Step 3.1.2), the distance between automobile left side obstacle and automobile and the distance threshold preset are compared;
Step 3.1.2.1), if the distance between automobile left side obstacle and automobile is greater than default distance threshold, control the first overtaking indicating light display precarious position;
Step 3.1.2.2), if the distance between automobile left side obstacle and automobile is less than or equal to default distance threshold, control the first overtaking indicating light display safe condition;
Step 3.2), if the right steering lamp of vehicle is opened;
Step 3.2.1), adopt the distance between obstacle and automobile on the right of the second radar sensor acquisition automobile;
Step 3.2.2), the distance on the right of automobile between obstacle and automobile and the distance threshold preset are compared;
Step 3.2.2.1), if the distance on the right of automobile between obstacle and automobile is greater than default distance threshold, control the second overtaking indicating light display precarious position;
Step 3.2.2.2), if the distance on the right of automobile between obstacle and automobile is less than or equal to default distance threshold, control the second overtaking indicating light display safe condition.
As the further prioritization scheme of blind monitoring method of overtaking other vehicles that the present invention is based on radar sensing, described the first to the second radar sensor all adopts the K-LC2 of RFbeam.
As the further prioritization scheme of blind monitoring method of overtaking other vehicles that the present invention is based on radar sensing, described the first to the second overtaking indicating light all adopts dichromatic LED.
As the further prioritization scheme of blind monitoring method of overtaking other vehicles that the present invention is based on radar sensing, the scope of described default distance threshold is 2 meters to 10 meters.
As the further prioritization scheme of blind monitoring method of overtaking other vehicles that the present invention is based on radar sensing, described default distance threshold is 5 meters.
The present invention adopts above technical scheme compared with prior art, has following technique effect:
1. structure is simple, easy to use;
2., by monitoring that the region that driver is difficult to see is alleviated its most of pressure and avoided the generation of dangerous situation, making the attention of driver be placed on front, greatly improving safety factor of travel.
Detailed description of the invention
Below technical scheme of the present invention is described in further detail:
The invention discloses a kind of blind monitoring method of overtaking other vehicles based on radar sensing, it is characterized in that, comprise following steps:
Step 1), the left-hand mirror of car arranges the first radar sensor and the first overtaking indicating light;
Step 2), the right rear view mirror of car arranges the second radar sensor and the second overtaking indicating light;
Step 3), obtains the state of vehicle turn signal;
Step 3.1), if the left steering lamp of vehicle is opened;
Step 3.1.1), adopt the distance between the first radar sensor acquisition automobile left side obstacle and automobile;
Step 3.1.2), the distance between automobile left side obstacle and automobile and the distance threshold preset are compared;
Step 3.1.2.1), if the distance between automobile left side obstacle and automobile is greater than default distance threshold, control the first overtaking indicating light display precarious position;
Step 3.1.2.2), if the distance between automobile left side obstacle and automobile is less than or equal to default distance threshold, control the first overtaking indicating light display safe condition;
Step 3.2), if the right steering lamp of vehicle is opened;
Step 3.2.1), adopt the distance between obstacle and automobile on the right of the second radar sensor acquisition automobile;
Step 3.2.2), the distance on the right of automobile between obstacle and automobile and the distance threshold preset are compared;
Step 3.2.2.1), if the distance on the right of automobile between obstacle and automobile is greater than default distance threshold, control the second overtaking indicating light display precarious position;
Step 3.2.2.2), if the distance on the right of automobile between obstacle and automobile is less than or equal to default distance threshold, control the second overtaking indicating light display safe condition.
Described the first to the second radar sensor all adopts the K-LC2 of RFbeam.
Described the first to the second overtaking indicating light all adopts dichromatic LED.
The scope of described default distance threshold is 2 meters to 10 meters, is preferably 5 meters.
Those skilled in the art of the present technique are understandable that, unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the present invention.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.
Above-described detailed description of the invention; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only the specific embodiment of the present invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1., based on the blind monitoring method of overtaking other vehicles of radar sensing, it is characterized in that, comprise following steps:
Step 1), the left-hand mirror of car arranges the first radar sensor and the first overtaking indicating light;
Step 2), the right rear view mirror of car arranges the second radar sensor and the second overtaking indicating light;
Step 3), obtains the state of vehicle turn signal;
Step 3.1), if the left steering lamp of vehicle is opened;
Step 3.1.1), adopt the distance between the first radar sensor acquisition automobile left side obstacle and automobile;
Step 3.1.2), the distance between automobile left side obstacle and automobile and the distance threshold preset are compared;
Step 3.1.2.1), if the distance between automobile left side obstacle and automobile is greater than default distance threshold, control the first overtaking indicating light display precarious position;
Step 3.1.2.2), if the distance between automobile left side obstacle and automobile is less than or equal to default distance threshold, control the first overtaking indicating light display safe condition;
Step 3.2), if the right steering lamp of vehicle is opened;
Step 3.2.1), adopt the distance between obstacle and automobile on the right of the second radar sensor acquisition automobile;
Step 3.2.2), the distance on the right of automobile between obstacle and automobile and the distance threshold preset are compared;
Step 3.2.2.1), if the distance on the right of automobile between obstacle and automobile is greater than default distance threshold, control the second overtaking indicating light display precarious position;
Step 3.2.2.2), if the distance on the right of automobile between obstacle and automobile is less than or equal to default distance threshold, control the second overtaking indicating light display safe condition.
2. the blind monitoring method of overtaking other vehicles based on radar sensing according to claim 1, it is characterized in that, described the first to the second radar sensor all adopts the K-LC2 of RFbeam.
3. the blind monitoring method of overtaking other vehicles based on radar sensing according to claim 1, it is characterized in that, described the first to the second overtaking indicating light all adopts dichromatic LED.
4. the blind monitoring method of overtaking other vehicles based on radar sensing according to claim 1, is characterized in that, the scope of described default distance threshold is 2 meters to 10 meters.
5. the blind monitoring method of overtaking other vehicles based on radar sensing according to claim 1, it is characterized in that, described default distance threshold is 5 meters.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510521827.1A CN105150928A (en) | 2015-08-24 | 2015-08-24 | Overtaking blind spot monitoring method based on radar sensing |
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| CN201510521827.1A CN105150928A (en) | 2015-08-24 | 2015-08-24 | Overtaking blind spot monitoring method based on radar sensing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111986502A (en) * | 2019-05-24 | 2020-11-24 | 上海擎感智能科技有限公司 | Driving reminding method, vehicle-mounted terminal, computer-readable storage medium and vehicle |
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| CN201272317Y (en) * | 2008-09-09 | 2009-07-15 | 动力新跃(北京)汽车科技有限公司 | Side distance monitoring and alarming system for automobile |
| CN102717752A (en) * | 2012-06-18 | 2012-10-10 | 奇瑞汽车股份有限公司 | Overtaking assisting system based on vehicle-vehicle short-distance communication |
| CN202686250U (en) * | 2012-05-31 | 2013-01-23 | 浙江吉利汽车研究院有限公司杭州分公司 | Overtaking warning system |
| CN103182981A (en) * | 2013-01-07 | 2013-07-03 | 浙江吉利汽车研究院有限公司杭州分公司 | Overtaking warning control system and overtaking warning control method |
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2015
- 2015-08-24 CN CN201510521827.1A patent/CN105150928A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6680689B1 (en) * | 2003-03-28 | 2004-01-20 | Visteon Global Technologies, Inc. | Method for determining object classification from side-looking sensor data |
| CN201272317Y (en) * | 2008-09-09 | 2009-07-15 | 动力新跃(北京)汽车科技有限公司 | Side distance monitoring and alarming system for automobile |
| CN202686250U (en) * | 2012-05-31 | 2013-01-23 | 浙江吉利汽车研究院有限公司杭州分公司 | Overtaking warning system |
| CN102717752A (en) * | 2012-06-18 | 2012-10-10 | 奇瑞汽车股份有限公司 | Overtaking assisting system based on vehicle-vehicle short-distance communication |
| CN103182981A (en) * | 2013-01-07 | 2013-07-03 | 浙江吉利汽车研究院有限公司杭州分公司 | Overtaking warning control system and overtaking warning control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111986502A (en) * | 2019-05-24 | 2020-11-24 | 上海擎感智能科技有限公司 | Driving reminding method, vehicle-mounted terminal, computer-readable storage medium and vehicle |
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Application publication date: 20151216 |
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