CN111332239A - Anti-collision early warning system for backing - Google Patents
Anti-collision early warning system for backing Download PDFInfo
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- CN111332239A CN111332239A CN201910874046.9A CN201910874046A CN111332239A CN 111332239 A CN111332239 A CN 111332239A CN 201910874046 A CN201910874046 A CN 201910874046A CN 111332239 A CN111332239 A CN 111332239A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
- B60R21/0134—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to imminent contact with an obstacle, e.g. using radar systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q5/00—Arrangement or adaptation of acoustic signal devices
- B60Q5/005—Arrangement or adaptation of acoustic signal devices automatically actuated
- B60Q5/006—Arrangement or adaptation of acoustic signal devices automatically actuated indicating risk of collision between vehicles or with pedestrians
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
- B60R21/0132—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
- B60T7/22—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger initiated by contact of vehicle, e.g. bumper, with an external object, e.g. another vehicle, or by means of contactless obstacle detectors mounted on the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
- B60W2050/143—Alarm means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
- B60W2050/146—Display means
Abstract
The invention belongs to the technical field of tire monitoring, in particular to a reverse anti-collision early warning system, which comprises a detection device, a calculation device, an early warning device, a braking auxiliary device and a central processing unit; the detection device, the calculation device, the early warning device and the brake auxiliary device are respectively in wireless connection with the central processing unit; according to the invention, the detection module and the calculation module are arranged, the calculation module is used for detecting the distance data between the tail part of the vehicle and the obstacle detected in the detection module, then the calculation result is transmitted to the central processing unit, the central processing unit controls the early warning device to be connected with the vehicle-mounted display screen and the vehicle-mounted sound box through electric wires according to the calculation result, the driving safety factor is improved, the laser is emitted at intervals by the laser emitters and received by the laser receiver, the detection precision of the distance between the same area of the road surface and the tail part of the vehicle can be effectively improved, and the safety factor of vehicle braking can be improved.
Description
Technical Field
The invention relates to the technical field of backing warning, in particular to a backing anti-collision warning system.
Background
With the continuous increase of motor vehicles, accidents happen when the vehicles reverse, particularly under the conditions of insufficient rear sight or insufficient driving experience when the vehicles reverse, when backing a car, the spatial distance cannot be judged and the car speed cannot be controlled improperly, so that the car can be backed quickly backwards, the direction cannot be controlled accurately and the car can not be braked in time, so that the accidents are serious, the anti-collision early warning and auxiliary braking device for backing a car can well solve the problem of early warning and auxiliary braking in time during the process of backing a car, avoid accidents during the process of backing a car, when the vehicle runs on the township small road, the vehicle needs to back for avoiding when meeting due to the narrow road surface of the township small road, but because the two sides of the township small road are provided with the water tanks, in driver's field of vision blind area, the condition that the vehicle dropped the basin at the in-process of backing a car appears easily, has the potential safety hazard.
Disclosure of Invention
In order to overcome the technical problems, the invention aims to provide a reverse collision-prevention early warning system, which is provided with a detection module and a calculation module, utilizes the calculation module to detect distance data between a vehicle tail part and an obstacle detected in the detection module, then transmits a calculation result to a central processing unit, and the central processing unit controls an early warning device to be connected with a vehicle-mounted display screen and a vehicle-mounted sound box through electric wires according to the calculation result, so that the driving safety factor is improved.
The purpose of the invention can be realized by the following technical scheme:
a car backing anti-collision early warning system comprises a detection device, a calculation device, an early warning device, a brake auxiliary device and a central processing unit; the detection device, the calculation device, the early warning device and the brake auxiliary device are respectively in wireless connection with the central processing unit;
the detection device is used for detecting the distance, the speed and the relative angle between adjacent vehicles and transmitting the detected data to the central processing unit, and comprises a first high-definition camera and a GPS positioning module; the first camera is used for collecting images of obstacles on the horizontal direction of the tail of the vehicle; the GPS positioning module is used for detecting the position and the moving speed of the vehicle; in the process of backing a vehicle, the first high-definition camera can shoot an obstacle at the tail of the vehicle and send the shot image to the central processing unit, so that the distance between the obstacle and the vehicle can be judged, and the GPS positioning module can detect the displacement distance and the vehicle speed of the vehicle;
the computing device is used for calling the data transmitted by the detection device in the central processing unit and computing the data; the computing device is used for calling an image acquired by the first high-definition camera in the central processing unit, the distance between the vehicle and the obstacle is computed according to the information of the image, the computed result is transmitted to the central processing unit, and finally the central processing unit controls the brake auxiliary device to work according to the computed data and the vehicle speed of the vehicle detected by the GPS positioning module, so that the vehicle and the foreign object can be prevented from colliding;
the early warning device is arranged in the vehicle close to the driver seat, is connected with the vehicle-mounted display screen and the vehicle-mounted sound box through electric wires, and is used for receiving an instruction sent by the central processing unit so as to early warn the driver; after the early warning device receives the distance data between the vehicle and the obstacle and the speed of the vehicle from the central processing unit, the driver is reminded, and the content of reminding is displayed through the vehicle-mounted display screen and the vehicle-mounted sound box, so that the safety coefficient of driving is improved;
the brake auxiliary device is arranged at a driving wheel of the vehicle and is used for receiving a command sent by the central processing unit so as to brake the driving wheel of the vehicle; the brake auxiliary device is controlled by the central processing unit, so that the vehicle can be conveniently braked, and the safety factor of driving is further improved;
the central processing unit is used for controlling the detection device, the braking auxiliary device, the early warning device and the calculation device to operate, and storing data in the detection device, the braking auxiliary device, the early warning device and the calculation device.
Further, the method comprises the following steps: the detection device further comprises a second high-definition camera and a distance sensor; the second high-definition camera is used for dynamically capturing a road surface image corresponding to the tail of the vehicle; the distance sensor is arranged at the tail part of the vehicle and is used for detecting the distance between the tail part of the vehicle and the road surface; when a vehicle runs on a small road in the countryside, because the road surface of the small road in the countryside is narrow, two vehicles often meet, the situation that one vehicle needs to move to the side edge at the corner is needed, at the moment, the vehicle which moves laterally often needs to back, and because the two sides of the small road in the countryside are both water tanks, the situation that the vehicle falls off the water tanks in the process of backing is easy to occur, at the moment, a second high-definition line-taking head takes a picture and transmits the picture to a central processing unit, the picture is displayed on a vehicle-mounted display screen through an early warning device, a plurality of laser transmitters are controlled by the central processing unit to sequentially send rays, then a laser receiver receives the rays sent by the plurality of laser transmitters and transmits the data to the central processing unit, the computing device computes the data of a distance sensor in the central processing unit to obtain a distance broken line graph between the tail part of the vehicle and the road surface, and when the abnormal break points appear on the broken line graph, the abnormal break point information is transmitted to the central processing unit, at the moment, the central processing unit transmits the information of the break points to the early warning device and displays the information on the vehicle-mounted display to provide reference data for backing of a driver, and therefore the safety factor of the vehicle in backing can be improved.
Further, the method comprises the following steps: the distance sensor comprises a laser receiver and a plurality of laser transmitters, the plurality of laser transmitters are used for working at intervals after receiving instructions of the central processing unit, and the interval time is 0.05 s; the laser receivers are arranged on one side of the laser transmitters in parallel and are used for receiving signals sent by the laser transmitters; at distance sensor during operation, utilize a plurality of laser emitter interval transmission laser, and receive through laser receiver, then with data transmission to central processing unit, the data among laser emitter among the central processing unit and the laser receiver are calculated to the computing arrangement, get its average distance, thereby can effectively improve the precision that the distance detected between the same region in road surface and the vehicle afterbody, avoid the stone on the road surface to lead to distance sensor's detection error, thereby can improve distance sensor's detection precision, and then can improve the factor of safety of vehicle braking.
Further, the method comprises the following steps: the detection device also comprises an infrared sensor; the infrared sensor is used for detecting the position of a living body at the tail of the vehicle; the vehicle often needs to turn around when traveling, however when the narrow road surface turns around, the vehicle needs to back a car the operation at the in-process that turns around, because of the pedestrian of city crossing is more, the vehicle is easy to appear the sight blind area when backing a car, can't carry out accurate grasp to the personnel or the pet trend of vehicle afterbody, at this moment, central processing unit control infrared sensor work is monitored the trend of live body, the image information in the computing device according to the infrared sensor in the central processing unit and combining first high-strength camera calculates the position of live body, and show the result of calculating on the vehicle-mounted display screen of vehicle through early warning device, further improve the factor of safety of vehicle when backing a car.
Further, the method comprises the following steps: the central processing unit is internally provided with a threshold module, and the threshold module comprises a first threshold, a second threshold and a third threshold; the vehicle speed corresponding to the threshold value I is less than or equal to 5 km/h; the vehicle speed corresponding to the threshold II is more than 5km/h and less than 10 km/h; the vehicle speed corresponding to the threshold value III is greater than or equal to 10 km/h; the speed of a vehicle in the GPS positioning module is divided by utilizing a threshold value module, and the distance data between the vehicle and a rear obstacle in the computing device is combined, when the speed of the vehicle is lower than 5km/h, and the distance between the vehicle and the rear obstacle is 2 meters, the vehicle is in the range of a threshold value I, at the moment, the central processing unit controls the early warning device to be connected with the vehicle-mounted sound box to send a single-sound 'tic' sound for early warning to remind a driver, and meanwhile, the central processing unit controls the brake auxiliary module to start braking the wheels to slow down the vehicle; when the vehicle speed is more than 5km/h and less than 10km/h and the distance between the vehicle and a rear obstacle is 1 m, the vehicle is in the range of a second threshold value, at the moment, the central processing unit controls the early warning device to be connected with the vehicle-mounted sound box to send out a double-sound beep sound to warn a driver, and simultaneously, the central processing unit controls the brake auxiliary module to start to brake the wheels; when the vehicle speed is greater than 10km/h or less than 5km/h and the distance between the vehicle and a rear obstacle is less than 20cm, the central processing unit controls the early warning device to be connected with the vehicle-mounted sound box to send a single-sound beep for early warning to remind a driver, and simultaneously controls the brake auxiliary module to start braking the wheels to stop the vehicle; therefore, the probability of vehicle reverse collision can be effectively reduced.
Further, the method comprises the following steps: the central processor also comprises a road surface layer information input device; the road surface layer information input device is used for inputting the classification and identification images of the road surface layer and providing road surface data for the computing device; in the process of backing a car, the road surface image at the tail part of the car is collected through the second high-definition camera and then is transmitted to the central processing unit, and the central processing unit compares the image of the road surface recorded in the road surface layer recording device with the collected image, so that the type of the road surface can be judged, the calculation parameters can be provided for the calculation device, and the calculation precision of the calculation device is effectively improved.
The invention has the beneficial effects that:
1. according to the invention, the detection module and the calculation module are arranged, the calculation module is used for detecting the distance data between the tail part of the vehicle and the obstacle detected in the detection module, then the calculation result is transmitted to the central processing unit, the central processing unit controls the early warning device to be connected with the vehicle-mounted display screen and the vehicle-mounted sound box through electric wires according to the calculation result, the driving safety factor is improved, the laser transmitters are used for transmitting laser at intervals, the laser receivers are used for receiving the laser, the average distance of the laser transmitters is obtained, the detection precision of the distance between the same area of the road surface and the tail part of the vehicle can be effectively improved, the detection error of the distance sensor caused by stones on the road surface is avoided, and the safety factor of.
2. According to the invention, the moving direction of the living body at the tail part of the vehicle is monitored through the infrared sensor, the position of the living body is calculated by utilizing the calculating device according to the data in the infrared sensor in the central processing unit and combining with the image information in the first high-strength camera, and the calculated result is displayed on the vehicle-mounted display screen of the vehicle through the early warning device, so that a driver can predict the moving direction of personnel at the tail part of the vehicle, and the safety coefficient of the vehicle during reversing is improved.
3. The speed of the vehicle in the GPS positioning module is divided by utilizing the first threshold value, the second threshold value and the third threshold value in the threshold value module, and the distance data between the vehicle and a rear obstacle in the calculating device is combined, so that the central processing unit controls the early warning device to perform distinguishing early warning, and the central processing unit controls the braking auxiliary module to start braking the wheels, so that the vehicle can be stopped or decelerated, and the collision probability of backing the vehicle can be effectively reduced; the road surface image of the tail part of the vehicle is collected through the second high-definition camera, the image of the road surface recorded in the road surface layer recording device is compared with the collected image by the central processing unit, so that the type of the road surface can be judged, calculation parameters can be provided for the calculation device, the calculation precision of the calculation device is effectively improved, and the situation that calculation result errors of the calculation device are caused due to different friction coefficients of the road surface layer is avoided.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a connection block diagram of the present invention;
FIG. 2 is a block diagram showing the structure of a distance sensor according to the present invention;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, a car backing anti-collision early warning system includes a detection device, a calculation device, an early warning device, a braking auxiliary device and a central processing unit; the detection device, the calculation device, the early warning device and the brake auxiliary device are respectively in wireless connection with the central processing unit;
the detection device is used for detecting the distance, the speed and the relative angle between adjacent vehicles and transmitting the detected data to the central processing unit, and comprises a first high-definition camera and a GPS positioning module; the first camera is used for collecting images of obstacles on the horizontal direction of the tail of the vehicle; the GPS positioning module is used for detecting the position and the moving speed of the vehicle; in the process of backing a vehicle, the first high-definition camera can shoot an obstacle at the tail of the vehicle and send the shot image to the central processing unit, so that the distance between the obstacle and the vehicle can be judged, and the GPS positioning module can detect the displacement distance and the vehicle speed of the vehicle;
the computing device is used for calling the data transmitted by the detection device in the central processing unit and computing the data; the computing device is used for calling an image acquired by the first high-definition camera in the central processing unit, the distance between the vehicle and the obstacle is computed according to the information of the image, the computed result is transmitted to the central processing unit, and finally the central processing unit controls the brake auxiliary device to work according to the computed data and the vehicle speed of the vehicle detected by the GPS positioning module, so that the vehicle and the foreign object can be prevented from colliding;
the early warning device is arranged in the vehicle close to the driver seat, is connected with the vehicle-mounted display screen and the vehicle-mounted sound box through electric wires, and is used for receiving an instruction sent by the central processing unit so as to early warn the driver; after the early warning device receives the distance data between the vehicle and the obstacle and the speed of the vehicle from the central processing unit, the driver is reminded, and the content of reminding is displayed through the vehicle-mounted display screen and the vehicle-mounted sound box, so that the safety coefficient of driving is improved;
the braking auxiliary device is arranged at a driving wheel of the vehicle and is used for receiving a command sent by the central processing unit so as to brake the driving wheel of the vehicle; the brake auxiliary device is controlled by the central processing unit, so that the vehicle can be conveniently braked, and the safety factor of driving is further improved;
the central processing unit is used for controlling the detection device, the brake auxiliary device, the early warning device and the calculation device to operate, and storing data in the detection device, the brake auxiliary device, the early warning device and the calculation device.
The detection device also comprises a second high-definition camera and a distance sensor; the second high-definition camera is used for dynamically capturing a road surface image corresponding to the tail of the vehicle; the distance sensor is arranged at the tail part of the vehicle and is used for detecting the distance between the tail part of the vehicle and the road surface; when a vehicle runs on a small road in the countryside, because the road surface of the small road in the countryside is narrow, two vehicles often meet, the situation that one vehicle needs to move to the side edge at the corner is needed, at the moment, the vehicle which moves laterally often needs to back, and because the two sides of the small road in the countryside are both water tanks, the situation that the vehicle falls off the water tanks in the process of backing is easy to occur, at the moment, a second high-definition line-taking head takes a picture and transmits the picture to a central processing unit, the picture is displayed on a vehicle-mounted display screen through an early warning device, a plurality of laser transmitters are controlled by the central processing unit to sequentially send rays, then a laser receiver receives the rays sent by the plurality of laser transmitters and transmits the data to the central processing unit, the computing device computes the data of a distance sensor in the central processing unit to obtain a distance broken line graph between the tail part of the vehicle and the road surface, and when the abnormal break points appear on the broken line graph, the abnormal break point information is transmitted to the central processing unit, at the moment, the central processing unit transmits the information of the break points to the early warning device and displays the information on the vehicle-mounted display to provide reference data for backing of a driver, and therefore the safety factor of the vehicle in backing can be improved.
The distance sensor comprises a laser receiver and a plurality of laser transmitters, the plurality of laser transmitters are used for working at intervals after receiving instructions of the central processing unit, and the interval time is 0.05 s; the laser receivers are arranged on one side of the laser transmitters in parallel and are used for receiving signals sent by the laser transmitters; at distance sensor during operation, utilize a plurality of laser emitter interval transmission laser, and receive through laser receiver, then with data transmission to central processing unit, the data among laser emitter among the central processing unit and the laser receiver are calculated to the computing arrangement, get its average number, thereby can effectively improve the distance between the same region in road surface and the vehicle afterbody, avoid stone on the road surface to lead to distance sensor's detection error, thereby can improve distance sensor's detection precision, and then can improve the factor of safety of vehicle braking.
The detection device also comprises an infrared sensor; the infrared sensor is used for detecting the position of a living body at the tail of the vehicle; the vehicle often needs to turn around when traveling, however when the narrow road surface turns around, the vehicle needs to back a car the operation at the in-process that turns around, because of the pedestrian of city crossing is more, the vehicle is easy to appear the sight blind area when backing a car, can't carry out accurate grasp to the personnel or the pet trend of vehicle afterbody, at this moment, central processing unit control infrared sensor work is monitored the trend of live body, the image information in the computing device according to the infrared sensor in the central processing unit and combining first high-strength camera calculates the position of live body, and show the result of calculating on the vehicle-mounted display screen of vehicle through early warning device, further improve the factor of safety of vehicle when backing a car.
A threshold module is arranged in the central processing unit, and the threshold module comprises a first threshold, a second threshold and a third threshold; the vehicle speed corresponding to the threshold value I is less than or equal to 5 km/h; the vehicle speed corresponding to the threshold value II is more than 5km/h and less than 10 km/h; the vehicle speed corresponding to the threshold value III is greater than or equal to 10 km/h; the speed of a vehicle in the GPS positioning module is divided by utilizing a threshold value module, and the distance data between the vehicle and a rear obstacle in the computing device is combined, when the speed of the vehicle is lower than 5km/h, and the distance between the vehicle and the rear obstacle is 2 meters, the vehicle is in the range of a threshold value I, at the moment, the central processing unit controls the early warning device to be connected with the vehicle-mounted sound box to send a single-sound 'tic' sound for early warning to remind a driver, and meanwhile, the central processing unit controls the brake auxiliary module to start braking the wheels to slow down the vehicle; when the vehicle speed is more than 5km/h and less than 10km/h and the distance between the vehicle and a rear obstacle is 1 m, the vehicle is in the range of a second threshold value, at the moment, the central processing unit controls the early warning device to be connected with the vehicle-mounted sound box to send out a double-sound beep sound to warn a driver, and simultaneously, the central processing unit controls the brake auxiliary module to start to brake the wheels; when the vehicle speed is greater than 10km/h or less than 5km/h and the distance between the vehicle and a rear obstacle is less than 20cm, the central processing unit controls the early warning device to be connected with the vehicle-mounted sound box to send a single-sound beep for early warning to remind a driver, and simultaneously controls the brake auxiliary module to start braking the wheels to stop the vehicle; therefore, the probability of vehicle reverse collision can be effectively reduced.
The central processing unit also comprises a road surface layer information input device; the road surface layer information input device is used for inputting the classification and identification images of the road surface layer and providing road surface data for the computing device; in the process of backing a car, the road surface image at the tail part of the car is collected through the second high-definition camera and then is transmitted to the central processing unit, and the central processing unit compares the image of the road surface recorded in the road surface layer recording device with the collected image, so that the type of the road surface can be judged, the calculation parameters can be provided for the calculation device, and the calculation precision of the calculation device is effectively improved.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.
Claims (6)
1. A car backing anti-collision early warning system is characterized by comprising a detection device, a calculation device, an early warning device, a brake auxiliary device and a central processing unit; the detection device, the calculation device, the early warning device and the brake auxiliary device are respectively in wireless connection with the central processing unit;
the detection device is used for detecting the distance, the speed and the relative angle between adjacent vehicles and transmitting the detected data to the central processing unit, and comprises a first high-definition camera and a GPS positioning module; the first camera is used for collecting images of obstacles on the horizontal direction of the tail of the vehicle; the GPS positioning module is used for detecting the position and the moving speed of the vehicle;
the computing device is used for calling the data transmitted by the detection device in the central processing unit and computing the data;
the early warning device is arranged in the vehicle close to the driver seat, is connected with the vehicle-mounted display screen and the vehicle-mounted sound box through electric wires, and is used for receiving an instruction sent by the central processing unit so as to early warn the driver;
the brake auxiliary device is arranged at a driving wheel of the vehicle and is used for receiving a command sent by the central processing unit so as to brake the driving wheel of the vehicle;
the central processing unit is used for controlling the detection device, the braking auxiliary device, the early warning device and the calculation device to operate, and storing data in the detection device, the braking auxiliary device, the early warning device and the calculation device.
2. The reversing anti-collision early warning system according to claim 1, wherein the detection device further comprises a second high-definition camera and a distance sensor; the second high-definition camera is used for dynamically capturing a road surface image corresponding to the tail of the vehicle; the distance sensor is arranged at the tail part of the vehicle and is used for detecting the distance between the tail part of the vehicle and the road surface.
3. The system of claim 2, wherein the distance sensor comprises a laser receiver and a plurality of laser transmitters, the plurality of laser transmitters are used for operating at intervals after receiving instructions from the central processing unit, and the interval time is 0.05 s; the laser receiver is arranged on one side of the laser transmitters in parallel and used for receiving signals sent by the plurality of laser transmitters.
4. The system of claim 2, wherein the detection device further comprises an infrared sensor; the infrared sensor is used for detecting the position of a living body at the tail of the vehicle.
5. The reversing anti-collision early warning system according to claim 1, wherein a threshold module is arranged in the central processing unit, and the threshold module comprises a first threshold, a second threshold and a third threshold; the vehicle speed corresponding to the threshold value I is less than or equal to 5 km/h; the vehicle speed corresponding to the threshold II is more than 5km/h and less than 10 km/h; and the vehicle speed corresponding to the threshold value III is greater than or equal to 10 km/h.
6. The reverse collision avoidance early warning system of claim 1, wherein the central processing unit further comprises a pavement surface layer information entry device; the road surface layer information input device is used for inputting the classification and identification images of the road surface layer and providing road surface data for the computing device.
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| CN201910874046.9A CN111332239A (en) | 2019-09-17 | 2019-09-17 | Anti-collision early warning system for backing |
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| CN201910874046.9A CN111332239A (en) | 2019-09-17 | 2019-09-17 | Anti-collision early warning system for backing |
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| CN (1) | CN111332239A (en) |
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Application publication date: 20200626 |