CN203611914U

CN203611914U - Automobile rear-end collision avoidance system

Info

Publication number: CN203611914U
Application number: CN201320626977.5U
Authority: CN
Inventors: 张国荣; 杨正炳
Original assignee: JIANGSU FEIYUE AUTO PARTS Co Ltd
Current assignee: JIANGSU FEIYUE AUTO PARTS Co Ltd
Priority date: 2013-10-12
Filing date: 2013-10-12
Publication date: 2014-05-28
Anticipated expiration: 2023-10-12

Abstract

The utility model discloses an automobile rear-end collision avoidance system, which comprises a first laser distance measuring sensor, a second laser distance measuring sensor, a third laser distance measuring sensor, a fourth laser distance measuring sensor, a velocity sensor, a button module, an alarm module, an LED (light-emitting diode) red light module, a display module and a controller; the first laser distance measuring sensor and the second laser distance measuring sensor are arranged directly in front of an automobile head; the third laser distance measuring sensor and the fourth laser distance measuring sensor are arranged directly at the rear of an automobile tail; data acquired by the first laser distance measuring sensor, the second laser distance measuring sensor, the third laser distance measuring sensor and the forth laser distance measuring sensor are input into the controller; the start/stop of the controller is controlled by the button module; the alarm module, the display module and the LED red light module are respectively connected with the controller; the LED red light module is arranged on the automobile tail, and therefore, the goal that rear vehicle operators are reminded is achieved.

Description

Rear-end collision preventing system

Technical field

The utility model relates to a kind of system that prevents rear-end collision.

Background technology

The vehicle that refers to same lanes of knocking into the back is trailed and when row, the behavior that rear car front and the front truck tailstock bump against.Mainly due to follow-up spacing be less than minimum safe spacing and chaufeur delay of response or brake system performance bad due to.Mention rear-end collision, much chaufeurs are all known, the chain reaction that the rear-end collision occurring on motorway produces is the strongest: because the speed of a motor vehicle is generally very fast, so once there be two cars to knock into the back, probably will involve a stringly below, this is namely called the common phenomenon of " bunching " by people.

In recent years, the express highway event of shunting into one another of getting on the car happens occasionally, cause very big loss to people's lives and properties, trace it to its cause is mainly due in the inclement weathers such as rainfall, mist, haze, sandstorm, the visbility of atmosphere reduces, when the vehicle in front is owing to bumping or because after the reason stop motions such as car breaks down, vehicle below cannot see that thereby accident dangerous situation does not have time enough to slow down outward at safety distance, in the time can seeing clearly again due to deceleration distance is too short also cannot positive braking, result causes serious consequence.

Motor traffic accidents is multiple, wherein rear-end collision accounts for sizable ratio, in fact in the time of safety traffic, as long as keep safety distance at least with front truck, can greatly reduce the occurrence probability of this type of traffic accident, but, when existing running car, can only roughly judge by range estimation the whether safety of distance of this car and front truck, so need a kind of automatic reminding system.

Utility model content

The purpose of this utility model is to provide a kind of system that prevents rear-end collision, and this system utilizes laser range sensor to obtain the distance between this car and front vehicles, thereby reminds in time this car chaufeur to slow down according to this car speed of a motor vehicle more simultaneously; Utilize laser range sensor to obtain the distance between this car and front vehicle, remind front vehicle chaufeur whether to need to slow down by the LED red light of this car tailstock.

In order to realize above object, the technical scheme that the utility model adopts is: rear-end collision preventing system, it is characterized in that, comprise the first laser range sensor, the second laser range sensor, the 3rd laser range sensor, the 4th laser range sensor, speed sensor, button module, alarm module, LED red light module, display module and controller; The first laser range sensor and the second laser range sensor are separately positioned on the dead ahead of headstock, and the 3rd laser range sensor and the 4th laser range sensor are arranged on the dead aft of the tailstock; The data of the first laser range sensor, the second laser range sensor, the 3rd laser range sensor and the 4th laser range sensor collection are input to controller; The startup of button module control controller/be parked in; Alarm module, display module and LED red light module are connected with controller respectively; LED red light module is arranged on the tailstock, plays the object of reminding front vehicle chaufeur.

Optimal technical scheme, controller adopts single chip computer AT 89S52; The first laser range sensor and the second laser range sensor are separately positioned on left front and the right front of headstock, and the 3rd laser range sensor and the 4th laser range sensor are separately positioned on left back and the right abaft of the tailstock.

Compared with prior art, the utility model has the advantage of: the utility model utilizes laser range sensor to obtain the distance between this car and front vehicles, thereby remind in time this car chaufeur to slow down according to this car speed of a motor vehicle more simultaneously; Utilize laser range sensor to obtain the distance between this car and front vehicle, remind front vehicle chaufeur whether to need to slow down by the LED red light of this car tailstock.

Accompanying drawing explanation

Fig. 1 is the utility model rear-end collision preventing system principle block diagram.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is described further.

Fig. 1: rear-end collision preventing system, it is characterized in that, comprise the first laser range sensor, the second laser range sensor, the 3rd laser range sensor, the 4th laser range sensor, speed sensor, button module, alarm module, LED red light module, display module and controller; The first laser range sensor and the second laser range sensor are separately positioned on left front and the right front of headstock, and the 3rd laser range sensor and the 4th laser range sensor are separately positioned on left back and the right abaft of the tailstock; The data of the first laser range sensor, the second laser range sensor, the 3rd laser range sensor and the 4th laser range sensor collection are input to controller; The startup of button module control controller/be parked in; Alarm module, display module and LED red light module are connected with controller respectively; LED red light module is arranged on the tailstock, plays the object of reminding front vehicle chaufeur.

Wherein, controller adopts single chip computer AT 89S52;

Display module adopts common LED display; Button module just adopt common can reset button; Alarm module adopts the buzzer phone of 5V to realize, and LED red light module adopts the LED glowing to realize.

AT89S52 is a kind of low-power consumption, high-performance CMOS 8 8-digit microcontrollers, has 8K at system programmable Flash memory device.Use the manufacture of Atmel company high-density nonvolatile memory technology, completely compatible with the instruction of industrial 80C51 product and pin.On sheet, Flash allows program store at system programmable, is also suitable for conventional programming device.On single-chip, have 8 dexterous bit CPUs and at system programmable Flash, make AT89S52 for numerous embedded Control application systems provide high flexibly, super actv. solution.AT89S52 has following standard feature: 8k bytes Flash, 256 byte RAM, 32 I/O mouth lines, WatchDog Timer, 2 data pointers, three 16 bit timing device/counting machines, 2 grades of interrupt structures of one 6 vector, full duplex serial port, crystal oscillator and clock circuit in sheet.In addition, AT89S52 can be down to the operation of 0Hz static logic, supports 2 kinds of softwares can select energy-saving mode.Under idle pulley, CPU quits work, and allows RAM, timer/counter, serial ports, interruption to work on.Under power down protection mode, RAM content is saved, and oscillator is frozen, and all work of micro controller system stop, and interrupts or hardware reset until next.

Principle of work of the present utility model: the first laser range sensor that this car headstock place arranges and the second laser range sensor record the spacing of Ben Che and front vehicles, average and guarantee to measure accurately, determine whether to need this car of warning reminding chaufeur to slow down according to the speed of a motor vehicle of this car simultaneously; The 3rd laser range sensor and the 4th laser range sensor record the spacing between Ben Che and front vehicle, remind the chaufeur of front vehicle in the time that spacing is less than safety distance by the LED red light module at this car tailstock place; The start and stop of button module control controller; Display module shows the spacing of this car and front vehicles and front vehicle in real time.

Claims

1. rear-end collision preventing system, it is characterized in that, comprise the first laser range sensor, the second laser range sensor, the 3rd laser range sensor, the 4th laser range sensor, speed sensor, button module, alarm module, LED red light module, display module and controller; The first laser range sensor and the second laser range sensor are separately positioned on the dead ahead of headstock, and the 3rd laser range sensor and the 4th laser range sensor are arranged on the dead aft of the tailstock; The data of the first laser range sensor, the second laser range sensor, the 3rd laser range sensor and the 4th laser range sensor collection are input to controller; The startup of button module control controller/be parked in; Alarm module, display module and LED red light module are connected with controller respectively; LED red light module is arranged on the tailstock, plays the object of reminding front vehicle chaufeur.

2. rear-end collision preventing system according to claim 1, is characterized in that, controller adopts single chip computer AT 89S52; The first laser range sensor and the second laser range sensor are separately positioned on left front and the right front of headstock, and the 3rd laser range sensor and the 4th laser range sensor are separately positioned on left back and the right abaft of the tailstock.