CN107564334B - Vehicle blind area danger early warning system and method for parking lot - Google Patents
Vehicle blind area danger early warning system and method for parking lot Download PDFInfo
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Abstract
The invention provides a vehicle blind area danger early warning system for a parking lot, which comprises position acquisition modules distributed at all positions of the parking lot, wherein each position acquisition module comprises a video acquisition module and a video processing module, each video acquisition module is used for acquiring images in the parking lot, and each video processing module is used for extracting the position information of vehicles and pedestrians in the images; and the central processing module is positioned in the monitoring center and used for establishing a corresponding relation between the vehicle and the pedestrian and the corresponding mobile terminal according to the position information of the vehicle and the pedestrian acquired by each position acquisition module and the GPS signal transmitted by the mobile terminal in the parking lot, acquiring the position of the blind area according to the position of the vehicle, and transmitting an early warning signal to the vehicle corresponding to the blind area and the mobile terminal of the pedestrian in the blind area when the pedestrian exists in the blind area. The invention fully utilizes the technology of the Internet of things, has low cost, can carry out wide, efficient and accurate real-time early warning on the danger of driving vehicles in the parking lot, and improves the safety and reliability of driving vehicles in the parking lot.
Description
Technical Field
The invention belongs to the technical field of intelligent traffic, and particularly relates to a vehicle blind area danger early warning system and method for a parking lot.
Background
Along with the progress of society, the development of economy and the improvement of the living standard of people, cars are more and more brought to people of common people. The rapid increase of the number of motor vehicles indicates the arrival of the popularization age of cars in China, and also brings great pressure to the tense urban traffic. The accompanying traffic safety issues also bring a heavy cost to society. Traffic accidents not only cause great waste of social wealth and threaten life safety of people, but also generate certain negative influence on stable society. However, since the vehicle blind area cannot detect a danger, it is a main cause of a traffic accident. Therefore, the identification and early warning of vehicle blind spot hazards is a major direction of vehicle safety research in recent years.
In order to effectively reduce road traffic accidents, attention needs to be paid not only to road traffic safety, but also to other aspects of traffic safety, which can directly influence the exertion of urban traffic functions, such as parking lot driving safety. Urban parking facilities are important infrastructure necessary for urban social economic development and resident life, so that accidents caused by vehicle blind areas in the parking lot are avoided by monitoring urban parking lots, and attention is paid to traffic safety.
The existing patents about the traffic safety of the parking lot mainly aim at the research expressions of a parking lot monitoring anti-theft system, the structural design of the parking lot, radio frequency chip communication, the positioning of empty parking spaces in the parking lot, efficient utilization and the like, and related patents for early warning of dead zones of the parking lot are almost zero.
The existing automobile has many vision blind areas due to the defects of self design, and in the driving process, the shielding effect of other vehicles in the traffic environment enables a blind area to be formed in the vision of a driver, so that the probability of traffic accidents is obviously improved. Statistics show that traffic accidents caused by unclear visual field blind areas bring huge losses to lives and properties of people. Therefore, the development of the blind area identification early warning technology can play a practical role in reducing traffic accidents. At present, most of equipment and devices for solving the visual field blind area adopt a camera to capture blind area images or share positions among vehicles by using the internet of vehicles and inter-vehicle communication, but the method of the internet of vehicles and the inter-vehicle communication cannot effectively reduce the traffic accident rate because pedestrian information which suddenly appears in a scene cannot be updated in real time, so that the development of the equipment and the device is subject to bottleneck.
Meanwhile, the smart phone gradually becomes an indispensable part of the life of people along with the development of the society, is one of essential items carried by people when going out, and certainly, the smart phone APP also has been developed unprecedentedly.
For a long time, research on parking lots focuses on planning of the parking lots, entrance and exit setting, design of ramps and lane radiuses of the parking lots, layout of the parking lots, monitoring and anti-theft areas and the like, and almost no research is conducted on vehicle driving blind area danger identification and early warning in the parking lots. Therefore, blind area danger identification of vehicle driving in a parking lot is urgently needed to be solved. How to identify danger of vehicle blind areas in a parking lot and combine with early warning of mobile phone APP on danger information is the problem mainly solved by the invention.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: a system and a method for early warning danger in vehicle blind areas in a parking lot are provided, so that early warning is performed on dangerous information of positions around a driving vehicle.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a dangerous early warning system of parking area vehicle blind area which characterized in that: it includes:
the system comprises position acquisition modules distributed at each position of a parking lot, wherein each position acquisition module comprises a video acquisition module and a video processing module, the video acquisition module is used for acquiring images in the parking lot, and the video processing module is used for extracting the position information of vehicles and pedestrians in the images;
and the central processing module is positioned in the monitoring center and used for establishing a corresponding relation between the vehicle and the pedestrian and the corresponding mobile terminal according to the position information of the vehicle and the pedestrian acquired by each position acquisition module and the GPS signal transmitted by the mobile terminal in the parking lot, acquiring the position of the blind area according to the position of the vehicle, and transmitting an early warning signal to the vehicle corresponding to the blind area and the mobile terminal of the pedestrian in the blind area when the pedestrian exists in the blind area.
According to the scheme, the video processing module comprises: the vehicle identification module is used for extracting a vehicle image from the acquired image and calculating vehicle position information by combining the coordinates of the position acquisition module and the image coordinates; and the target identification module is used for extracting a pedestrian image from the acquired image and calculating pedestrian position information by combining the coordinates of the position acquisition module and the image coordinates.
According to the scheme, the central processing module comprises: the terminal matching module is used for matching the position information of the vehicles and the pedestrians with the GPS information of the mobile terminal in the parking lot and establishing a corresponding relation; the target tracking module is used for judging whether the vehicle and the pedestrian displace according to the position information of the vehicle and the pedestrian obtained by a plurality of continuous frames of images; the blind area detection module is used for detecting the blind area corresponding to the vehicle which is displaced according to the corresponding relation between the preset vehicle position information and the blind area; and the danger judgment module is used for sending out alarm signals to corresponding vehicles and pedestrians when the pedestrians exist in the blind areas corresponding to the displaced vehicles.
According to the scheme, the system also comprises a receiving server and an information relay station which are positioned in the monitoring center, wherein the receiving server is used for receiving the position information of the vehicles and the pedestrians acquired by each position acquisition module and the GPS signals sent by the mobile terminals in the parking lot for being called by the central processing module; the information relay station is used for storing the corresponding relation between the vehicles and the pedestrians and the corresponding mobile terminals for the central processing module to call.
According to the scheme, the system also comprises a wireless transmission network node which is used for transferring the alarm signal sent by the central processing module and sending the alarm signal to the corresponding vehicle and pedestrian.
The early warning method realized by the parking lot vehicle blind area danger early warning system is characterized in that: it comprises the following steps:
s1, acquiring images of all places of the parking lot in real time, and extracting position information of vehicles and pedestrians in the images;
s2, establishing a corresponding relation between the vehicle and the pedestrian and the corresponding mobile terminal according to the acquired position information of the vehicle and the pedestrian and the GPS signal sent by the mobile terminal in the parking lot, acquiring the position of the blind area according to the position of the vehicle, and sending an early warning signal to the mobile terminal of the vehicle corresponding to the blind area and the pedestrian in the blind area when the pedestrian exists in the blind area.
According to the method, the S1 specifically comprises the following steps: acquiring images of all places of a parking lot in real time, extracting vehicle images from the acquired images, and calculating vehicle position information by combining coordinates of a position acquisition module and image coordinates; and extracting a pedestrian image from the acquired image, and calculating pedestrian position information by combining the coordinates of the position acquisition module and the image coordinates.
According to the method, the S2 specifically comprises the following steps:
matching the position information of the vehicles and the pedestrians with the GPS information of the mobile terminal in the parking lot, and establishing a corresponding relation;
judging whether the vehicle and the pedestrian displace according to the position information of the vehicle and the pedestrian obtained by a plurality of continuous frames of images;
detecting a blind area corresponding to a vehicle which is displaced according to the corresponding relation between the preset vehicle position information and the blind area;
when a pedestrian exists in the blind area corresponding to the displaced vehicle, an alarm signal is sent to the corresponding vehicle and the pedestrian.
According to the method, the S2 sends out the alarm signal through the short message, multimedia message or APP pushing mode.
The invention has the beneficial effects that: utilize each surveillance camera head in the parking area to monitor vehicle and pedestrian's condition in the parking area, detect the vehicle blind area, and establish vehicle and pedestrian that detect in mobile terminal and the image and match, thereby send alarm signal for dangerous vehicle and pedestrian, make full use of internet of things, and with low costs, be of value to developing to ordinary people, can more accurately acquire danger information sooner, can drive the vehicle danger in the parking area extensively, high-efficient and accurate early warning in real time, it drives vehicle fail safe nature in the parking area to improve, be fit for using widely on a large scale.
Drawings
Fig. 1 is a schematic structural diagram according to an embodiment of the present invention.
Fig. 2 is a functional implementation block diagram of an embodiment of the present invention.
Fig. 3 is a schematic perspective view of a blind zone of a vehicle.
Fig. 4 is a schematic view of the plane internal structure and blind area of the parking lot.
Detailed Description
The invention is further illustrated by the following specific examples and figures.
The invention provides a vehicle blind area danger early warning system of a parking lot, as shown in figures 1 and 2, comprising:
the system comprises a plurality of positions, a plurality of modules and a plurality of image processing modules, wherein the positions are distributed at all positions of a parking lot and comprise a video acquisition module and a video processing module, the video acquisition module is used for acquiring images in the parking lot, and the video processing module is used for extracting position information of vehicles and pedestrians in the images. The video processing module comprises: the vehicle identification module is used for extracting a vehicle image from the acquired image and calculating vehicle position information by combining the coordinates of the position acquisition module and the image coordinates; and the target identification module is used for extracting a pedestrian image from the acquired image and calculating pedestrian position information by combining the coordinates of the position acquisition module and the image coordinates.
And the central processing module is positioned in the monitoring center and used for establishing a corresponding relation between the vehicle and the pedestrian and the corresponding mobile terminal according to the position information of the vehicle and the pedestrian acquired by each position acquisition module and the GPS signal transmitted by the mobile terminal in the parking lot, acquiring the position of the blind area according to the position of the vehicle, and transmitting an early warning signal to the vehicle corresponding to the blind area and the mobile terminal of the pedestrian in the blind area when the pedestrian exists in the blind area. The central processing module comprises: the terminal matching module is used for matching the position information of the vehicles and the pedestrians with the GPS information of the mobile terminal in the parking lot and establishing a corresponding relation; the target tracking module is used for judging whether the vehicle and the pedestrian displace according to the position information of the vehicle and the pedestrian obtained by a plurality of continuous frames of images; the blind area detection module is used for detecting the blind area corresponding to the vehicle which is displaced according to the corresponding relation between the preset vehicle position information and the blind area; and the danger judgment module is used for sending out alarm signals to corresponding vehicles and pedestrians when the pedestrians exist in the blind areas corresponding to the displaced vehicles.
Optionally, in order to ensure the effectiveness and timeliness of information reception and transmission, the system further includes a receiving server and an information relay station located in the monitoring center, where the receiving server is used to receive the position information of the vehicle and the pedestrian acquired by each position acquisition module and the GPS signal sent by the mobile terminal in the parking lot, and is called by the central processing module; the information relay station is used for storing the corresponding relation between the vehicles and the pedestrians and the corresponding mobile terminals for the central processing module to call.
Optionally, in order to improve reliability of alarm information transmission, the system further includes a wireless transmission network node, configured to relay and send the alarm signal sent by the central processing module to the corresponding vehicle and pedestrian.
The early warning method realized by the parking lot vehicle blind area danger early warning system comprises the following steps:
and S1, acquiring images of all places of the parking lot in real time, and extracting the position information of the vehicles and pedestrians in the images. S1 specifically includes: acquiring images of all places of a parking lot in real time, extracting vehicle images from the acquired images, and calculating vehicle position information by combining coordinates of a position acquisition module and image coordinates; and extracting a pedestrian image from the acquired image, and calculating pedestrian position information by combining the coordinates of the position acquisition module and the image coordinates.
S2, establishing a corresponding relation between the vehicle and the pedestrian and the corresponding mobile terminal according to the acquired position information of the vehicle and the pedestrian and the GPS signal sent by the mobile terminal in the parking lot, acquiring the position of the blind area according to the position of the vehicle, and sending an early warning signal to the mobile terminal of the vehicle corresponding to the blind area and the pedestrian in the blind area when the pedestrian exists in the blind area. S2 specifically includes: matching the position information of the vehicles and the pedestrians with the GPS information of the mobile terminal in the parking lot, and establishing a corresponding relation; judging whether the vehicle and the pedestrian displace according to the position information of the vehicle and the pedestrian obtained by a plurality of continuous frames of images; detecting a blind area corresponding to a vehicle which is displaced according to the corresponding relation between the preset vehicle position information and the blind area; when a pedestrian exists in the blind area corresponding to the displaced vehicle, an alarm signal is sent to the corresponding vehicle and the pedestrian, and the alarm signal can be sent in a short message, multimedia message or APP pushing mode.
The automobile blind area refers to a part of area where a driver is located at a normal driving seat and the sight line of the driver is shielded by a vehicle body and cannot directly observe the driver. The front blind area is a place which cannot be seen in front of the engine cover. The front blind area of the automobile has several related factors, and the height of an automobile body and a seat, the length of a head, the stature of a driver and the like are all related. The blind area behind the vehicle is a rear blind area, which means that an area that is approximately 30 degrees from the rear door to the outside is outside the view of the mirror. The rearview mirrors on the two sides of the vehicle can only see the two sides of the vehicle body, and can not completely collect all information around the vehicle body. The side view dead zone is referred to as the AB post dead zone (shown in FIG. 3), A, B posts on either side of the windshield. When the vehicle turns, if the A columns on two sides are wide, the wide distance shields the sight, so that the generated blind area is large, and if the A columns are narrow, the blind area is small. The blind area of the B column is mainly on the right side of the vehicle, and when the vehicle needs to turn to the outside in a large angle during running, the B column can shield the sight line and possibly collide with the vehicle running normally on the right side. According to the invention, according to the research on the vehicle, the center of the vehicle is used as the position information of the vehicle, and the corresponding blind area coordinate range is calculated and stored as a preset value for the blind area detection module to call.
When the parking lot monitoring system works, the video display dynamically displays the monitoring state of the parking lot, and the storage server in the information processing module synchronously stores video images of the whole parking lot. Meanwhile, the central processing module utilizes the written program to position, detect, identify and track the vehicle in the video, so as to obtain the position information, the speed information, the displacement information, the vehicle information of the vehicle blind area and the person information of the vehicle blind area, and when a moving person or vehicle appears in the vehicle blind area, the processed information is sent to the smart phone terminal of the vehicle owner to prompt the driver. As shown in fig. 4, the vehicle 1 is traveling forward, and the person 2 and the vehicle 3 that is about to travel are just in the blind zone of the vehicle 1, and at this time, the smart phone APP of the vehicle owner sends out a sound signal and displays a real-time picture. The pedestrian 5 is in the blind area scope of vehicle 4 and gets into the place ahead of going of vehicle 4 fast, is in extremely dangerous situation, and video processing module real-time analysis vehicle pedestrian position, action information extract dangerous action to send the real-time picture in parking area to the car owner's cell-phone of vehicle 4.
The invention monitors the parking lot and the vehicle condition by utilizing the existing monitoring device in the monitoring system in the parking lot, loads the early warning APP into the mobile phone by utilizing the smart mobile phone, achieves wide spread, has extremely low cost, is beneficial to the development to the common people, can more quickly and accurately acquire danger information, can carry out wide, efficient and accurate real-time early warning on the driving vehicle danger in the parking lot, improves the safety and reliability of the driving vehicle in the parking lot, and is suitable for large-scale popularization and use. The method can also be used for identifying the danger of the driving vehicle blind area in daily road traffic, and has wide application prospect.
The above embodiments are only used for illustrating the design idea and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the content of the present invention and implement the present invention accordingly, and the protection scope of the present invention is not limited to the above embodiments. Therefore, all equivalent changes and modifications made in accordance with the principles and concepts disclosed herein are intended to be included within the scope of the present invention.
Claims (2)
1. The utility model provides a dangerous early warning system of parking area vehicle blind area which characterized in that: it includes:
the system comprises position acquisition modules distributed at each position of a parking lot, wherein each position acquisition module comprises a video acquisition module and a video processing module, the video acquisition module is used for acquiring images in the parking lot, and the video processing module is used for extracting the position information of vehicles and pedestrians in the images;
the central processing module is positioned in the monitoring center and used for establishing a corresponding relation between the vehicle and the pedestrian and the corresponding mobile terminal according to the position information of the vehicle and the pedestrian acquired by each position acquisition module and the GPS signal sent by the mobile terminal in the parking lot, acquiring the position of the blind area according to the position of the vehicle, and sending an early warning signal to the mobile terminal of the vehicle corresponding to the blind area and the pedestrian in the blind area when the pedestrian exists in the blind area;
the central processing module comprises: the terminal matching module is used for matching the position information of the vehicles and the pedestrians with the GPS information of the mobile terminal in the parking lot and establishing a corresponding relation; the target tracking module is used for judging whether the vehicle and the pedestrian displace according to the position information of the vehicle and the pedestrian obtained by a plurality of continuous frames of images; the blind area detection module is used for detecting the blind area corresponding to the vehicle which is displaced according to the corresponding relation between the preset vehicle position information and the blind area; the danger judgment module is used for sending alarm signals to corresponding vehicles and pedestrians when the pedestrians exist in the blind areas corresponding to the displaced vehicles;
the video processing module comprises: the vehicle identification module is used for extracting a vehicle image from the acquired image and calculating vehicle position information by combining the coordinates of the position acquisition module and the image coordinates; the target identification module is used for extracting a pedestrian image from the acquired image and calculating pedestrian position information by combining the coordinates of the position acquisition module and the image coordinates;
the system also comprises a receiving server and an information relay station which are positioned in the monitoring center, wherein the receiving server is used for receiving the position information of the vehicles and the pedestrians acquired by each position acquisition module and the GPS signals sent by the mobile terminals in the parking lot for being called by the central processing module; the information relay station is used for storing the corresponding relation between the vehicles and the pedestrians and the corresponding mobile terminal for the central processing module to call;
the system also comprises a wireless transmission network node which is used for transferring the alarm signal sent by the central processing module and sending the alarm signal to corresponding vehicles and pedestrians.
2. The early warning method implemented by the parking lot vehicle blind area danger early warning system of claim 1, characterized in that: it comprises the following steps:
s1, acquiring images of all places of the parking lot in real time, and extracting position information of vehicles and pedestrians in the images;
s2, establishing a corresponding relation between the vehicle and the pedestrian and the corresponding mobile terminal according to the acquired position information of the vehicle and the pedestrian and the GPS signal sent by the mobile terminal in the parking lot, acquiring the position of a blind area according to the position of the vehicle, and sending an early warning signal to the mobile terminal of the vehicle and the pedestrian corresponding to the blind area when the pedestrian exists in the blind area; the S2 specifically includes:
matching the position information of the vehicles and the pedestrians with the GPS information of the mobile terminal in the parking lot, and establishing a corresponding relation;
judging whether the vehicle and the pedestrian displace according to the position information of the vehicle and the pedestrian obtained by a plurality of continuous frames of images;
detecting a blind area corresponding to a vehicle which is displaced according to the corresponding relation between the preset vehicle position information and the blind area;
when a pedestrian exists in a blind area corresponding to the displaced vehicle, an alarm signal is sent to the corresponding vehicle and the pedestrian;
the S1 specifically includes: acquiring images of all places of a parking lot in real time, extracting vehicle images from the acquired images, and calculating vehicle position information by combining coordinates of a position acquisition module and image coordinates; extracting a pedestrian image from the acquired image, and calculating pedestrian position information by combining the coordinates of the position acquisition module and the image coordinates;
and the S2 sends out an alarm signal in a short message, multimedia message or APP pushing mode.
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