CN203381585U

CN203381585U - An ARM-based vehicle safety driving distance keeping and control system

Info

Publication number: CN203381585U
Application number: CN201320483023.3U
Authority: CN
Inventors: 黄球艳; 张玉强
Original assignee: 魏国营
Priority date: 2013-08-08
Filing date: 2013-08-08
Publication date: 2014-01-08
Anticipated expiration: 2023-08-08

Abstract

The utility model relates to a car safe driving vehicle distance keeps and control system based on ARM relates to the safety assistance field of daily car, tests the speed by laser radar and measures distance module, control module, brake module, fuel and cut off module and alarm module and constitute, laser radar tests the speed and measures distance module, brake module, fuel and cut off module and alarm module respectively with control module connects, the utility model discloses can automatic measure this car and the relative speed and the distance of the place ahead vehicle to divide into 2 early warning ranks and send out control command to the vehicle, with suggestion driver control vehicle distance to and the initiative control vehicle slows down and goes, thereby avoids this car and place ahead target vehicle or barrier to produce the collision, can effectively improve the security of driving.

Description

A kind of vehicle safety travel spacing based on ARM keeps and control system

Technical field

The utility model relates to the auxiliary field of safety of daily car, and particularly a kind of vehicle safety travel spacing based on ARM keeps and control system.

Background technology

Along with social development, automobile becomes one of main traffic instrument of people's trip gradually, be accompanied by the increase of private car quantity, also promoted the incidence of traffic accident, however road traffic accident in all kinds of traffic accidents, the rear-end collision accident, particularly the car tracing cauda accident is a class of occurrence frequency maximum, analysis to some traffic accident occurrence causes learns, the relative speed of a motor vehicle of the middle basis of travelling keeps suitable spacing, and reserving enough braking distances is to prevent the key knocked into the back.

On 03 30th, 2011 disclosed, the Chinese invention patent that publication number is 101992729A discloses a kind of spacing inductor, adopt infrared distance measuring sensor, controller and alarm module, the infrared distance measuring sensor is separately positioned on the both sides of car body front-end and back-end, and be connected with controller by wireless signal, make people understand on the run the situation of forward direction vehicle distances or obstacle.The shortcoming of this scheme is that the infrared pickoff measuring distance is short, affected by environment large, therefore makes the ranging system reliability not high, and there is no the false alarm prevention measure; In addition, during scheme provides and travels, which type of spacing is not dangerous, little to warning and the reference role of navigating mate; And for example on 06 24th, 2009 disclosed, the Chinese invention patent that publication number is 101462515 discloses a kind of novel vehicle distance determination apparatus, be provided with width indicator according to car body size and Perspective Principles and measure the forward direction vehicle distances, help driver certifying spacing on front windshield.Although this scheme is simple in structure, because chaufeur will aim at width indicator and front vehicles, seriously disperse the attention of chaufeur, easily bring out accident, particularly complicated, especially true while running at high speed in road conditions.

People more and more recognize, utilize pioneering technology, and car assisted chaufeur is monitored in real time and reports to the police the spacing in travelling, and auxiliary steerman carries out emergency handling, reduce the speed of a motor vehicle, prevent the generation of automobile collision accident, just seem and are even more important.

The utility model content

The utility model main purpose is to provide a kind of forward direction far measuring distance, the relatively accurate a kind of vehicle safety travel spacing based on ARM of tracking target keeps and control system, it can measure relative velocity and the distance of this car and the place ahead target vehicle automatically, described control module is compared described laser radar relative velocity and the distance that range finder module transmits back that test the speed from the corresponding safety distance of the different speed of a motor vehicle set in advance, and then make early warning, and be divided into 2 warning levels respectively to brake module, fuel-cut module and alarm module send control command, the 1st warning level is to control described alarm module to send alarm signal, and control described fuel-cut module and cut off the fuel oil supply, make car deceleration travel, the 2nd warning level is to control described alarm module to send alarm signal, and controls described brake module vehicle is braked, thereby avoids Ben Che and front vehicles to produce collision.

For achieving the above object, the technical solution adopted in the utility model is: a kind of vehicle safety travel spacing based on ARM keeps and control system, by the laser radar range finder module that tests the speed, control module, brake module, fuel-cut module and alarm module form, the described laser radar range finder module that tests the speed, brake module, the fuel-cut module is connected with described control module respectively with alarm module, described control module adopts the ARM9 microprocessor, the described laser radar range finder module that tests the speed is arranged on the body forward structure centre, its relative velocity and distance for obtaining Ben Che and front vehicles, and transfer data to described control module, described control module is compared described laser radar relative velocity and the distance that range finder module transmits back that test the speed from the corresponding safety distance of the different speed of a motor vehicle set in advance, and then make early warning, and be divided into 2 warning levels respectively to brake module, fuel-cut module and alarm module send control command, the 1st warning level is to control described alarm module to send alarm signal, and control described fuel-cut module and cut off the fuel oil supply, make car deceleration travel, the 2nd warning level is to control described alarm module to send alarm signal, and controls described brake module vehicle is braked, thereby avoids Ben Che and front vehicles to produce collision.

Specifically, the described laser radar range finder module that tests the speed is measured relative velocity and the distance between this car and front vehicles or obstacle, and the data of measurement are sent to control module, described control module has set in advance automobile at the corresponding safety distance of the different speed of a motor vehicle, the relative speed of a motor vehicle that described control module records according to the radar velocity measurement range finder module is determined corresponding safety distance, and laser radar actual distance and the determined safety distance that range finder module records that test the speed compared, and then make early warning, such as, in the time that the actual distance recorded is less than safety distance, described control module is sent the phonetic warning signal to alarm module, as preferably, the phonetic warning signal content is for playing actual distance and the safety distance of this car and front vehicles or obstacle, be convenient to chaufeur and understand correlation circumstance, and control described fuel-cut module and cut off the fuel oil supply, make car deceleration travel to remain a safe distance behind the car in front, if this phonetic warning signal fails to cause the attention of chaufeur, at two following distances, continue to reduce, once between two cars, distance is closed on the collision critical gap eve (critical gap can preset by different car body weights), described alarm module is when sending audio alert (as the measure that should take braking or dodge to the chaufeur prompting), control module is sent instruction to brake module, controlling described brake module is braked vehicle, make car deceleration travel, thereby avoid Ben Che and the place ahead target vehicle or obstacle to produce collision.

As preferred version, described alarm module comprises speech chip, described speech chip is connected with the loud speaker of automobile end, the model of described speech chip is SC8035, this speech chip can serial, segmentation is controlled, described speech chip is for the synthesis of the operation indicating voice, when the actual distance of Ben Che and the place ahead target vehicle or obstacle is less than safety distance or when closing on the collision critical gap, described control module sends alerting signal to alarm module, described speech chip sends corresponding alarm voice prompting sound to the loud speaker of automobile end, remind the chaufeur regulation speed or take measures to remain a safe distance behind the car in front.

The beneficial effects of the utility model are:

The utility model can be measured relative velocity and the distance of this car and the place ahead target vehicle automatically, described control module is compared described laser radar relative velocity and the distance that range finder module transmits back that test the speed from the corresponding safety distance of the different speed of a motor vehicle set in advance, and then make early warning, and be divided into 2 warning levels and send control command to brake module, fuel-cut module and alarm module respectively, the 1st warning level is to control described alarm module to send alarm signal, and control described fuel-cut module and cut off the fuel oil supply, make car deceleration travel; The 2nd warning level is to control described alarm module to send alarm signal, and controls described brake module vehicle is braked, thereby avoids Ben Che and front vehicles to produce collision.

The accompanying drawing explanation

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

Fig. 1 is the utility model structural representation.

In Fig. 1, the corresponding relation of component names and Reference numeral is:

The laser radar range finder module 1 that tests the speed; Control module 2; Alarm module 3; Speech chip 30; Loud speaker 31; Fuel-cut module 4; Brake module 5.

The specific embodiment

The utility model structural representation as shown in Figure 1, a kind of vehicle safety travel spacing based on ARM keeps and control system, by the laser radar range finder module 1 that tests the speed, control module 2, fuel-cut module 4, brake module 5 and alarm module 3 form, the described laser radar range finder module 1 that tests the speed, fuel-cut module 4, brake module 5 is connected with described control module 2 respectively with alarm module 3, it is characterized in that: described control module 2 adopts the ARM9 microprocessor, the described laser radar range finder module 1 that tests the speed is arranged on the body forward structure centre, its relative velocity and distance for obtaining Ben Che and front vehicles, and transfer data to described control module 2, described control module 2 is compared described laser radar relative velocity and the distance that range finder module 1 transmits back that test the speed from the corresponding safety distance of the different speed of a motor vehicle set in advance, and then make early warning, and be divided into 2 warning levels respectively to fuel-cut module 4, brake module 5 and alarm module 3 send control command, the 1st warning level is to control described alarm module 3 to send alarm signal, and control described fuel-cut module 4 and cut off the fuel oil supply, make car deceleration travel, the 2nd warning level is to control described alarm module 3 to send alarm signal, and controls 5 pairs of vehicles of described brake module and braked, thereby avoids Ben Che and front vehicles to produce collision.

In a preferred embodiment, the described laser radar range finder module 1 that tests the speed is arranged on the body forward structure centre, it is for obtaining relative velocity and the distance of Ben Che and the place ahead target vehicle or obstacle, and transfer data to described control module 2, described control module 2 is compared described laser radar relative velocity and the distance that range finder module transmits back that test the speed from the corresponding safety distance of the different speed of a motor vehicle set in advance, and then make early warning, and be divided into 2 warning levels respectively to fuel-cut module 4, brake module 5 and alarm module 3 send control command, the 1st warning level is to control described alarm module 3 to send alarm signal, and control described fuel-cut module 4 and cut off the fuel oil supply, make car deceleration travel, the 2nd warning level is to control described alarm module 3 to send alarm signal, and controls 5 pairs of vehicles of described brake module and braked, thereby avoids Ben Che and front vehicles to produce collision.

Specifically, test the speed range finder module 1 of described laser radar is measured relative velocity and the distance between this car and front vehicles or obstacle, and send the data of measurement to control module 2, set in advance automobile in described control module 2 at the corresponding safety distance of the different speed of a motor vehicle, in the present embodiment, the corresponding safety distance of the described different speed of a motor vehicle is the regulation according to " People's Republic of China's law on road traffic safety ": self-propelled vehicle is at running on expressway, when the speed of a motor vehicle per hour surpasses 100 kilometers, safe distance between vehicles is no less than 100 meters, the speed of a motor vehicle is lower than per hour 100 kilometers the time, the minimum safe spacing must not be less than 50 meters, in the present embodiment, the relative speed of a motor vehicle that described control module 2 records according to radar velocity measurement range finder module 1 is determined corresponding safety distance, and the actual distance between this car that radar velocity measurement range finder module 1 is recorded and the place ahead target vehicle or obstacle and definite safety distance compare, and then make corresponding early warning, further, in the time that actual distance is less than safety distance, described control module 2 is sent the phonetic warning signal to 3 of warning moulds, as preferably, the phonetic warning signal content is for playing actual distance and the safety distance of this car and front vehicles or obstacle, be convenient to chaufeur and understand correlation circumstance, and control described fuel-cut module 4 and cut off the fuel oil supply, make car deceleration travel, regulation speed is to remain a safe distance behind the car in front, if this phonetic warning signal fails to cause the attention of chaufeur, at two following distances, continue to reduce, once between two cars, distance is closed on the collision critical gap eve (critical gap can preset by different car body weights), alarm module 3 is when sending audio alert (as the measure that should take braking or dodge to the chaufeur prompting), 5 pairs of vehicles of described brake module are braked, thereby avoid Ben Che and front vehicles to produce collision.

As preferred version, described alarm module 3 comprises speech chip 30, described speech chip 30 is connected with the loud speaker 31 of automobile end, the model of described speech chip 30 is SC8035, this speech chip 30 can serial, segmentation is controlled, described speech chip 30 is for the synthesis of the operation indicating voice, when the actual distance of Ben Che and the place ahead target vehicle or obstacle is less than safety distance or when closing on the collision critical gap, described control module 2 sends alerting signal to alarm module 3, described speech chip 30 sends corresponding alarm voice prompting sound to the loud speaker 31 of automobile end, remind the chaufeur regulation speed or take measures to remain a safe distance behind the car in front.

Claims

1. An ARM-based automobile safety driving distance keeping and control system, relating to the field of safety assistance for daily vehicles, is characterized in that: a laser radar speed measurement and distance measurement module (1), a control module (2), an alarm module ( 3), fuel cut-off module (4) and brake module (5), the laser radar speed measurement and distance measurement module (1), fuel cut-off module (4), brake module (5) and alarm module (3) respectively Connected to the control module (2), the alarm module (3) includes a voice chip (30), the voice chip (30) is connected to the speaker (31) at the car end, and the model of the voice chip (30) is SC8035, the voice chip can be serially and segmentally controlled, the voice chip (30) is used to synthesize operation prompt voice; the control module (2) adopts ARM9 microprocessor; the laser radar speed measurement and distance measurement module ( 1) Installed in the center of the front of the vehicle body, it is used to obtain the relative speed and distance between the vehicle and the vehicle in front, and transmit the data to the control module (2), and the control module (2) transmits the laser radar The relative speed and distance transmitted by the speed measurement and distance measurement module (1) are compared with the preset safety distances corresponding to different vehicle speeds, and then an early warning is given, which is divided into two early warning levels and sent to the fuel cutoff module (4), The brake module (5) and the alarm module (3) issue control commands, that is, the first warning level is to control the alarm module (3) to send a warning signal, and to control the fuel cut-off module (4) to cut off the fuel supply, so that the vehicle Slowing down, the second warning level is to control the warning module (3) to send a warning signal, and control the braking module (5) to brake the vehicle, so as to avoid collision between the vehicle and the vehicle in front.