CN203698105U - Vehicle lateral anti-collision warning device - Google Patents

Vehicle lateral anti-collision warning device Download PDF

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Publication number
CN203698105U
CN203698105U CN201320876677.2U CN201320876677U CN203698105U CN 203698105 U CN203698105 U CN 203698105U CN 201320876677 U CN201320876677 U CN 201320876677U CN 203698105 U CN203698105 U CN 203698105U
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CN
China
Prior art keywords
vehicle
warning
micro controller
sensor
ultrasonic
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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.)
Expired - Fee Related
Application number
CN201320876677.2U
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Chinese (zh)
Inventor
张冬梅
文英
韩伟
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Changan University
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Changan University
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Publication date
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Priority to CN201320876677.2U priority Critical patent/CN203698105U/en
Application granted granted Critical
Publication of CN203698105U publication Critical patent/CN203698105U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model belongs to the field of vehicle active safety, and discloses a vehicle lateral anti-collision warning device, which comprises a single chip microcomputer, a steering lamp sensor, an ultrasonic generator, an ultrasonic sensor, a speed sensor and a buzzer, wherein the ultrasonic generator is arranged on a vehicle in the lateral direction, the ultrasonic sensor is used to receive ultrasonic waves which are reflected from lateral obstacles of the vehicle, the speed sensor is used to measure own speed of the vehicle, input/output (I/O) input ends of the single chip microcomputer are respectively and electrically connected with the output ends of the ultrasonic sensor, the steering lamp sensor and the speed sensor, and an I/O output end of the single chip microcomputer is electrically connected with the input end of the buzzer. The vehicle lateral anti-collision warning device can detect collision trends, and can remind drivers to safely drive through an alarm mode.

Description

A kind of vehicle side is to proximity-warning device
Technical field
The utility model belongs to automobile active safety field, is specifically related to a kind of vehicle side to proximity-warning device.
Background technology
The broadside impact type of automobile mainly contains the collision between broadside impact between automobile, side direction grazing and automobile and road guard.Conventional truck is not generally installed side-looking radar, chaufeur to the control of vehicle generally according to subjective judgement and in the past driving experience handle.In the time that need are overtaken other vehicles, first chaufeur can judge the travel conditions of passed vehicle, fully estimates to overtake other vehicles stroke, and in the time that these conditions are good, chaufeur can be overtaken other vehicles, but vehicle corner is often controlled improperly sometimes, and broadside impact easily occurs.Vehicle is in the time of running on expressway simultaneously, and the speed of a motor vehicle is higher, and side direction safety distance should be larger.This is because the speed of a motor vehicle is high, and the lateral runout displacement of vehicle is larger, if side direction safety distance is easy to cause grazing not.In addition, vehicle also should keep certain transverse distance with guardrail in the process of moving.Chaufeur tends to produce vision dead zone in the process of moving, and the object that can not observe in time both sides also can cause side direction grazing or collision case.At present, do not have applicable device to carry out warning reminding to chaufeur.
Utility model content
The purpose of this utility model is to provide a kind of vehicle side to proximity-warning device, and this device can detect collision trend, and can remind the chaufeur driving of taking care by type of alarm.
For realizing above-mentioned technical purpose, the utility model adopts following technical scheme to be reached.
A kind of vehicle side is to proximity-warning device, it is characterized in that, comprise micro controller system, steering indicating light sensor, be arranged on vehicle side to ultrasonic generator, for receiving the hypracoustic ultrasonic transduter of vehicle side to obstacle reflection, for the speed sensor of measuring vehicle self speed, buzzer phone; The I/O input end of described micro controller system is electrically connected respectively the mouth of ultrasonic transduter, the mouth of steering indicating light sensor, the mouth of speed sensor, the input end of an I/O mouth electrical connection buzzer phone of described micro controller system.
Feature of the present utility model and further improvement are:
On gauge panel, be provided with the indicator lamp that carries out light warning, another I/O mouth of the input end electrical connection micro controller system of described indicator lamp.
Described micro controller system adopts SPCE061A.
Described ultrasonic generator and ultrasonic transduter are arranged on the car body on the positive top of wheel, vehicle both sides.
The utility model has adopted after technique scheme, in Vehicle Driving Cycle process, described micro controller system receives the whether turn sign in turn condition of vehicle of vehicle self speed, the steering indicating light sensor measurement of side direction actual distance, the speed sensor measurement of vehicle that ultrasonic transduter measures and side direction obstacle; In micro controller system, prestore the side direction safety distance corresponding with vehicle self speed, micro controller system is according to the turn condition of vehicle, by the side direction actual distance under this vehicle self speed and the side direction safety distance contrast prestoring, thereby judge and send alerting signal to buzzer phone.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the electrical block diagram of a kind of vehicle side of the present utility model to proximity-warning device;
Fig. 2 is that vehicle side shown in Fig. 1 is to the main program flow chart of proximity-warning device;
Fig. 3 is processing subprogram 1 diagram of circuit in the main program flow chart shown in Fig. 2.
The specific embodiment
With reference to Fig. 1, for a kind of vehicle side of the present utility model is to the electrical block diagram of proximity-warning device.This device comprises micro controller system, steering indicating light sensor, be arranged on vehicle side to ultrasonic generator, for receiving the hypracoustic ultrasonic transduter of vehicle side to obstacle reflection, for the speed sensor of measuring vehicle self speed, buzzer phone; The I/O input end of micro controller system is electrically connected respectively the mouth of ultrasonic transduter, the mouth of steering indicating light sensor, the mouth of speed sensor, the input end of an I/O mouth electrical connection buzzer phone of micro controller system.
On gauge panel, be provided with the indicator lamp that carries out light warning, another I/O mouth of the input end electrical connection micro controller system of indicator lamp, indicator lamp adopts LED bar shaped charactron, and LED bar shaped charactron is made up of three red LED, three yellow leds, two green LED.Due to the I/O mouth resource-constrained of micro controller system, so this device adopts HC595 chip to carry out driving LED bar shaped charactron.
Ultrasonic generator and ultrasonic transduter are arranged on the car body on the positive top of wheel, vehicle both sides.The main mode of operation of ultrasonic transduter has two kinds, i.e. resonant and pulsed.Resonant application requirements is very complicated, will operate and be responsible for, therefore choose pulse reflection in actual use.
Micro controller system adopts the micro controller system SPCE061A of Ling Yang science and technology.This chip has that processing speed is fast, internal resource is abundant, cost performance is high, have the functions such as powerful audio frequency processing.Its radical function has two 16 programmable timer/time meters, two 10 DAC, 7 path 10 position ADC; 32 general programmable input/output port, to connect the external devices such as ultrasonic transduter, buzzer phone, LED bar shaped charactron, speed sensor; 14 interrupt sources, have touching arousal function; Having low voltage resets and low voltage monitoring function; Built-in online artificial circuit ICE interface.
This device customized design+5V power supply provides working power for micro controller system, in power circuit, adopt the DC/DC Switching Power Supply conversion chip TPS5430 of superior performance, this Switching Power Supply conversion chip efficiency is high, best condition can reach 95%, and input voltage range is wide, from 5.5V to 36V, the output area of wide voltage, minimum capable of regulating drops to 1.221V, and its external circuit is simple, has overcurrent protection and hot turn-off function; This chip also has low quiescent current, turn-offs fast the advantages such as micro-miniature encapsulation.This chip needs a very large decoupling capacitance, and choosing value size should be determined with reference to actual input voltage size.The output filtering device of this chip adopts KL4, C62.TPS5430 has internal compensation circuit, selects 100 μ H inductance, 470 μ F output capacitances.BOOT capacitor C 62 is chosen as 10nF.
The working process of this device: vehicle in the process of moving, first, whether open steering indicating light by steering indicating light sensor detected vehicle, if unlatching steering indicating light, judge that vehicle is in the state of overtaking other vehicles, the accident of may overtaking other vehicles, speed sensor reads the moving velocity of vehicle self, the side direction minimum safe distance e that calculates automobile and obstacle under this speed by micro controller system, the computing formula of e is:
e = v 1 - 40 200 + 0.94
V in formula 1for self speed of vehicle, the lateral distance of the vehicle recording and obstacle is transferred to micro controller system by ultrasonic transduter, the vehicle that micro controller system records ultrasonic transduter and the lateral distance of obstacle and the side direction minimum safe distance e comparison calculating, if the lateral distance that super sonic records is greater than side direction minimum safe distance e, LED bar shaped charactron is shown in green, and buzzer phone is not sounded; If the lateral distance that super sonic records is less than or equal to side direction minimum safe distance e, LED bar shaped charactron is shown in red, and buzzer phone sends alarm sound.
Centre at the front bumper of vehicle is installed ultrasonic generator and ultrasonic transduter, for the spacing d of measuring vehicle and preceding vehicle.
First, whether open steering indicating light by steering indicating light sensor detected vehicle, if do not open steering indicating light, judge that vehicle is in following the state of speeding.Secondly, speed sensor reads the moving velocity of vehicle self, judge that whether vehicle is in low speed driving state, the present embodiment definition speed of a motor vehicle is low speed driving lower than 15km/h, if shield warning function, otherwise undertaken and the measurement of the spacing d of preceding vehicle by ultrasonic transduter, micro controller system compares apart from dw and danger warning actual measurement spacing d and reminding alarm apart from db, and reminding alarm is apart from d wcomputing formula be d w=2.2v ret+ 6.2, in formula, v retbe two car relative velocities; Danger warning is apart from d bcomputing formula be d b=2v 1+ d 0, in formula, v 1for the speed of a motor vehicle before car braking, d 0for the safety distance that should keep with front truck after car stops, general value is within the scope of 2m~5m.In warning, adopt two-stage type of alarm, when actual measurement spacing d is greater than reminding alarm apart from d wtime, system green light, alarm free sound, be safety traffic state; When actual measurement spacing, d is less than reminding alarm apart from d wand be greater than danger warning apart from d btime, amber light is bright, and the pronunciation of buzzer phone interval, is now reminding alarm state; When actual measurement spacing, d is less than danger warning apart from d btime, system when red, the pronunciation of buzzer phone interval, frequency is determined with actual measurement lateral distance d, and more small frequency is higher for actual measurement lateral distance d, is now danger warning state, and chaufeur must gather emergency braking measure in order to avoid the generation of traffic accident.
Although below by reference to the accompanying drawings embodiment of the present utility model is described, but the utility model is not limited to above-mentioned specific embodiments and applications field, above-mentioned specific embodiments is only schematic, guiding, rather than restrictive.Those of ordinary skill in the art, under the enlightenment of specification sheets, in the case of not departing from the scope that the utility model claim protects, can also make a variety of forms, and these all belong to the row of the utility model protection.

Claims (4)

1. a vehicle side is to proximity-warning device, it is characterized in that, comprise micro controller system, steering indicating light sensor, be arranged on vehicle side to ultrasonic generator, for receiving the hypracoustic ultrasonic transduter of vehicle side to obstacle reflection, for the speed sensor of measuring vehicle self speed, buzzer phone; The I/O input end of described micro controller system is electrically connected respectively the mouth of ultrasonic transduter, the mouth of steering indicating light sensor, the mouth of speed sensor, the input end of an I/O mouth electrical connection buzzer phone of described micro controller system.
2. a kind of vehicle side according to claim 1, to proximity-warning device, is provided with the indicator lamp that carries out light warning on gauge panel, another I/O mouth of the input end electrical connection micro controller system of described indicator lamp.
3. a kind of vehicle side according to claim 1 is to proximity-warning device, and described micro controller system adopts SPCE061A.
4. a kind of vehicle side according to claim 1 is to proximity-warning device, and described ultrasonic generator and ultrasonic transduter are arranged on the car body on the positive top of wheel, vehicle both sides.
CN201320876677.2U 2013-12-25 2013-12-25 Vehicle lateral anti-collision warning device Expired - Fee Related CN203698105U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320876677.2U CN203698105U (en) 2013-12-25 2013-12-25 Vehicle lateral anti-collision warning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320876677.2U CN203698105U (en) 2013-12-25 2013-12-25 Vehicle lateral anti-collision warning device

Publications (1)

Publication Number Publication Date
CN203698105U true CN203698105U (en) 2014-07-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320876677.2U Expired - Fee Related CN203698105U (en) 2013-12-25 2013-12-25 Vehicle lateral anti-collision warning device

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108932871A (en) * 2018-07-27 2018-12-04 合肥市智信汽车科技有限公司 A kind of lateral anti-collision alarm system of vehicle based on infrared laser auxiliary

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108932871A (en) * 2018-07-27 2018-12-04 合肥市智信汽车科技有限公司 A kind of lateral anti-collision alarm system of vehicle based on infrared laser auxiliary

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C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140709

Termination date: 20141225