A reverse car searching system and method

Abstract

The present application belongs to the technical field of parking management of parking lot, and particularly relates to a reverse car searching system and a car searching method, which solve the technical problem of high cost of the reverse car searching system in the prior art. The reverse car searching system comprises an entrance vehicle information acquisition device, a server, a network switch and a query terminal. The reverse car searching method compares the time difference between the time when the vehicle enters the parking lot and the time when the corresponding parking space sensor sends a sensing signal with the originally stored time range, so as to bind the parking space number sending the sensing signal with the extracted license plate number, and the car owner can one-key query on the query terminal. The video parking space detection terminal does not need to be arranged on each parking space, and the vehicle information acquisition device is arranged only at each intersection and the parking lot entrance, so that the parking space can be accurately found, and the construction and use and maintenance costs are low.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of parking management of parking lot, and particularly relates to a reverse car searching system and a car searching method. BACKGROUND

[0002] With the continuous increase of the number of motor vehicles in China, the construction scale of parking lots is also getting larger and larger, and a large number of multi-layer and multi-area large parking lots appear in cities. In large parking lots such as shopping malls, shopping centers, airports and railway stations, when the vehicle owner returns to the parking lot, he or she will lose direction in the parking lot due to the large space of the parking lot, similar environment and sign, and difficult-to-distinguish direction, and cannot find his or her own vehicle, resulting in the situation of easy parking and difficult searching. Especially, the vehicle models, colors and the like are similar, and the parking position cannot be quickly determined, a lot of time is spent in searching for the vehicle, and the vehicle turnover rate is reduced.

[0003] In view of the above problems, the prior art has designed corresponding reverse car searching system and reverse car searching method, such as a parking lot video positive guidance parking reverse searching management system disclosed in Chinese patent application for invention with application publication number CN103824472A, which comprises a video parking space detection terminal, a multi-channel video processor DSP, a network switch SW, a server PC, a parking space guidance screen and a reverse searching terminal. The above system can help the vehicle owner to search for the parking space, but it is necessary to install the video parking space detection terminal above each parking space in the parking lot to real-time capture the image information of the parking space, which undoubtedly increases the use and maintenance cost due to the large area and large number of parking spaces in the parking lot. SUMMARY

[0004] In view of this, the purpose of the present application is to provide a reverse car searching system and a car searching method to solve the technical problem of high cost of the reverse car searching system in the prior art.

[0005] To achieve the above purpose, the technical scheme adopted by the reverse car searching system of the present application is as follows:

[0006] A reverse car searching system, comprising an entrance vehicle information acquisition device, a server, a vehicle sensor, a network switch and a query terminal:

[0007] The entrance vehicle information acquisition device is in communication connection with the server, is arranged at the entrance of the parking lot, is used for acquiring vehicle image information and vehicle entry time information, and sends the acquired vehicle image information and vehicle entry time information to the server;

[0008] The vehicle sensor is provided with a plurality of vehicle sensors, and each vehicle sensor is in communication connection with the server and is arranged under the parking space one by one, and is used for sensing whether a vehicle is parked on the parking space and sending a sensing signal to the server;

[0009] The server comprises a data storage module, a data processing module and a timing module, the data storage module stores original data and real-time data, the original data comprises position information of an entrance vehicle information collection device, position information of each parking space, position information of each query terminal and time range information of a test vehicle spent from the position of the entrance vehicle information collection device to the position of each parking space within a defined vehicle speed range in the parking lot; the real-time data comprises vehicle image information and vehicle entry time information received from the entrance vehicle information collection device; the timing module is used for recording the driving time between each time the entrance vehicle information collection device sends vehicle image information to the server and the time when the corresponding parking space next vehicle sensor sends a sensing signal to the server; the data processing module is used for extracting an electronic license plate number from the vehicle image information, and comparing the driving time with the original time range information stored in the data storage module, if the driving time is within a certain time range in the original time information, the parking space number corresponding to the time range is bound with the electronic license plate number;

[0010] The query terminal is provided with a plurality of query terminals, which are in communication connection with the server through a network switch, the query terminal is arranged at the corresponding elevator entrance of the parking lot, and is used for receiving a query request to retrieve and display the corresponding information of the parking space number and the license plate number from the server.

[0011] Further, the reverse car searching system further comprises a plurality of intersection vehicle information collection devices in communication connection with the server, the intersection vehicle information collection devices are arranged at the corresponding intersections of the parking lot, and are used for collecting vehicle image information and passing time information of a vehicle passing through the position and sending the same to the server; the data processing module extracts an electronic license plate number from the vehicle image information sent by the intersection vehicle information collection device, and compares the electronic license plate number with the electronic license plate number extracted from the vehicle image information sent by the entrance vehicle information collection device, judges which area of the parking lot the vehicle stops in, and judges which parking space the vehicle finally stops in in combination with the time when the vehicle sensor sends a sensing signal within a corresponding time period.

[0012] Further, a navigation module is arranged in each query terminal, and the navigation module is used for generating a route between the query terminal and the queried parking space and displaying the route on the query terminal.

[0013] Further, the entrance vehicle information collection device and the intersection vehicle information collection device are both license plate recognition cameras, the parking space sensor is an ultrasonic detector, and the query terminal is a self-service terminal all-in-one machine.

[0014] The technical scheme of the reverse car searching method of the present application is:

[0015] A reverse vehicle searching method, comprising installing an entrance vehicle information collection device at the entrance of a parking lot, installing a parking space sensor under each parking space, and installing an inquiry terminal at each elevator entrance of the parking lot;

[0016] The entrance vehicle information collection device is used to collect vehicle image information and vehicle entrance time information, and send the collected vehicle image information and vehicle entrance time information to a server;

[0017] The vehicle sensor is used to sense whether a vehicle is parked on a parking space, and send a sensing signal to the server;

[0018] The server performs data storage, data processing and timing; the server stores time range information consumed by a test vehicle from a position of the entrance vehicle information collection device to positions of each parking space within a defined vehicle speed range of the parking lot, and vehicle image information and vehicle entrance time information received from the entrance vehicle information collection device; the server records a driving time between each time when the entrance vehicle information collection device sends vehicle image information to the server and each time when a vehicle sensor corresponding to a parking space sends a sensing signal to the server; the server extracts an electronic license plate number from the vehicle image information, and compares the driving time with the stored original time range information, if the driving time is within a certain time range in the original time information, the server binds a parking space number corresponding to the time range with the electronic license plate number;

[0019] The inquiry terminal receives parking space inquiry information, and calls and displays corresponding information of the parking space number and the license plate number from the server.

[0020] Further, a crossroad vehicle information collection device in communication connection with the server is arranged at each crossroad of the parking lot, and is used to collect vehicle image information and passing time information of a vehicle passing through the position, and send the information to the server; the server extracts an electronic license plate number from the vehicle image information sent by the crossroad vehicle information collection device, and compares the electronic license plate number with an electronic license plate number extracted from the vehicle image information sent by the entrance vehicle information collection device, judges which area of the parking lot the vehicle stops in, and judges which parking space the vehicle finally stops in in combination with a time when a sensing signal is sent by a vehicle sensor within a corresponding time period.

[0021] Further, the step of the server judging where the vehicle finally stops comprises: step one: for the same vehicle, finding out the intersection vehicle information collection device adjacent to the entrance vehicle information collection device, and judging that the vehicle stops in the parking space between the two intersection vehicle information collection devices or the vehicle stops in the parking space between the entrance vehicle information collection device and the intersection vehicle information collection device adjacent thereto according to which intersection vehicle information collection device sends the vehicle image information to the server and which intersection vehicle information collection device does not send the vehicle image information to the server;

[0022] Step two: when the intersection vehicle information collection device adjacent to the entrance vehicle information collection device does not send the vehicle image information to the server, the server binds the parking space number and the license plate number according to the corresponding time range in which the time that the parking space sensor sends the sensing signal to the server is located.

[0023] Step three: when one of the two adjacent intersection vehicle information collection devices does not send the vehicle image information to the server, the server first determines that the vehicle is located in the parking space interval between the two adjacent intersection vehicle information collection devices, and then binds the parking space number and the license plate number in combination with the time that the vehicle passes the last intersection vehicle information collection device and the corresponding time range in which the time that the parking space sensor sends the sensing signal to the server is located.

[0024] Preferably, the server deletes the license plate number bound with the parking space number and the vehicle image information corresponding to the license plate number when the sensing signal of the parking space sensor disappears.

[0025] Further, the navigation module is arranged in each query terminal, and the query terminal automatically generates the navigation route between the query terminal and the parking space found by the query and displays the navigation route on the query terminal.

[0026] The present application has the following advantages:

[0027] 1. The present application binds the parking space number sending the sensing signal and the extracted license plate number by comparing the time difference between the time that the vehicle enters the parking lot and the time that the corresponding parking space sensor sends the sensing signal with the originally stored time range, so that the vehicle owner can make one-key query on the query terminal.

[0028] 2. The present application does not need to set video parking space detection terminals on each parking space, but only needs to set corresponding vehicle information collection devices at each intersection and the entrance of the parking lot to accurately find the parking space, so that the construction and use and maintenance cost are low.

[0029] 3、The application has a navigation function after the owner finds the parking space where the vehicle is parked, improves the vehicle taking efficiency and improves the vehicle turnover rate of the parking lot.

[0030] 4、The application does not require the user to download the corresponding App using the mobile terminal, nor does it require logging into an additional car searching website. The user's vehicle information can be displayed on the query terminal, the car searching and route guidance are completed, and the influence of signal loss in the underground parking lot on the user's car searching is reduced. DETAILED DESCRIPTION

[0031] Specific embodiments of the reverse car searching system of the application:

[0032] The reverse car searching system comprises an entrance vehicle information acquisition device, a server, a vehicle sensor, a network switch and a query terminal.

[0033] Specifically, the entrance vehicle information acquisition device is a license plate recognition camera, which is in communication connection with the server and is arranged at the entrance of the parking lot. The entrance vehicle information acquisition device is used for acquiring vehicle image information and vehicle entry time information and sending the acquired vehicle image information and vehicle entry time information to the server.

[0034] The vehicle sensor is provided in plurality and is in communication connection with the server. Each vehicle sensor is arranged under a parking space in one-to-one correspondence and is used for sensing whether a vehicle is parked on the parking space. When a vehicle is sensed on the parking space, the vehicle sensor sends an sensing signal to the server. In the embodiment, the vehicle sensor is an ultrasonic detector. The ultrasonic detector is a prior art, and its structure and specific working principle are not described in detail herein.

[0035] The server comprises a data storage module, a data processing module and a timing module. The data storage module stores original data and real-time data. The original data comprises position information of the entrance vehicle information acquisition device, position information of each parking space, position information of each query terminal and time range information consumed by a test vehicle from the position of the entrance vehicle information acquisition device to the position of each parking space within a defined vehicle speed range in the parking lot. The time range information is explained as follows: the highest value of the defined vehicle speed in the parking lot is 5km / h according to the traffic regulations. On the premise that each driver obeys the traffic regulations, the time consumed by a test vehicle at a speed of 5km / h according to a unique travel route from the entrance vehicle information acquisition device to each parking space and parking is a time range corresponding to each parking space.

[0036] The real-time data includes vehicle image information and vehicle entry time information received from the entrance vehicle information collection device. The timing module is used to record the driving time between each time the entrance vehicle information collection device sends vehicle image information to the server and the time the vehicle inductor on the corresponding parking space sends an induction signal to the server. The data processing module is used to extract the electronic license plate number from the vehicle image information and compare the driving time with the original time range information stored in the data storage module. If the driving time is within a certain time range in the original time information, the parking space number corresponding to the time range is bound with the electronic license plate number.

[0037] The query terminal is provided with multiple self-service terminal integrated machines, and is in communication connection with the server through a network switch. The query terminal is arranged at the corresponding elevator entrance of the parking lot and is used to receive a query request to retrieve and display the corresponding information of the parking space number and the license plate number from the server. The navigation module is arranged in each query terminal and is used to generate a route between the query terminal and the queried parking space and display the route on the query terminal.

[0038] It should be noted that the reverse car searching system of the present application is carried out in a relatively ideal environment, which includes: (1) the route from the entrance of the parking lot to each parking space is single and fixed; (2) the vehicles entering from the entrance of the parking lot are parked in the corresponding parking spaces in turn according to the distance; (3) the parking level of each driver is the same, and the parking time will not be too long.

[0039] However, considering that when parking, the vehicles entering the parking lot first need to drive to a position near the elevator entrance at a farther position, and the vehicles entering the parking lot later need to drive to a position near the elevator entrance at a closer position, at this time, the first entering vehicle will have a long driving time, and the induction signal from the parking space where the vehicle is located will be late; the second entering vehicle will have a short driving time, and the induction signal from the parking space where the vehicle is located will be early. In combination with the actual situation, in order to avoid the situation that the server binds the parking space number with the early induction signal with the license plate number of the first entering vehicle, and binds the parking space number with the late induction signal with the license plate number of the later entering vehicle, the reverse car searching system of the present application is further improved and further includes multiple intersection vehicle information collection devices in communication connection with the server. The intersection vehicle information collection device is a license plate recognition camera arranged at the corresponding intersection of the parking lot and is used to collect vehicle image information and passing time information when the vehicle passes through the position and send the information to the server.

[0040] The data processing module extracts the electronic license plate number from the vehicle image information sent by the intersection vehicle information collection device, and compares it with the electronic license plate number extracted from the vehicle image information sent by the entrance vehicle information collection device, judges which area of the parking lot the vehicle stops in, and judges which parking space the vehicle finally stops in in combination with the time when the vehicle sensor sends the sensing signal in the corresponding time period.

[0041] The reverse vehicle searching method of the application is based on the reverse vehicle searching system described above, and the explanation of the time range information is the same as that in the reverse vehicle searching system, which is as follows:

[0042] An entrance vehicle information collection device is installed at the entrance of the parking lot, a parking space sensor is installed under each parking space, and a query terminal is installed at each elevator entrance of the parking lot.

[0043] The entrance vehicle information collection device is used to collect vehicle image information and vehicle entry time information, and send the collected vehicle image information and vehicle entry time information to the server.

[0044] The vehicle sensor is used to sense whether a vehicle is parked on the parking space, and send a sensing signal to the server.

[0045] The server performs data storage, data processing and timing; the server stores the time range information consumed by the test vehicle from the position of the entrance vehicle information collection device to the position of each parking space within the defined vehicle speed range of the parking lot, and the vehicle image information and vehicle entry time information received from the entrance vehicle information collection device; the server records the driving time between each time the vehicle image information is sent by the entrance vehicle information collection device to the server and the sensing signal is sent by the vehicle sensor to the server; the server extracts the electronic license plate number from the vehicle image information, and compares the driving time with the stored original time range information, if the driving time is within a certain time range in the original time information, the parking space number corresponding to the time range is bound with the electronic license plate number.

[0046] The query terminal receives the parking space query information, and retrieves and displays the corresponding information of the parking space number and the license plate number from the server.

[0047] In addition, intersection vehicle information collection devices connected with the server are arranged at intersections in the parking lot, for collecting vehicle image information and passing time information of vehicles passing through the position and sending to the server. The server extracts the electronic license plate number from the vehicle image information sent by the intersection vehicle information collection device, and compares it with the electronic license plate number extracted from the vehicle image information sent by the entrance vehicle information collection device, to determine which area in the parking lot the vehicle is parked in, and to determine which parking space the vehicle is finally parked in in combination with the time when the vehicle sensor sends a sensing signal in the corresponding time period.

[0048] The step of determining by the server in which parking space the vehicle is finally parked in includes: step one, for the same vehicle, finding out the intersection vehicle information collection device adjacent to the entrance vehicle information collection device, and determining whether the vehicle is parked in the parking space between the two intersection vehicle information collection devices or the vehicle is parked in the parking space between the entrance vehicle information collection device and the intersection vehicle information collection device adjacent thereto, according to which intersection vehicle information collection device sends the vehicle image information to the server and which intersection vehicle information collection device does not send the vehicle image information to the server; step two, when the intersection vehicle information collection device adjacent to the entrance vehicle information collection device does not send the vehicle image information to the server, it can be determined that the vehicle does not pass through the intersection, i.e. is on the parking space area between the entrance vehicle information collection device and the expected adjacent intersection vehicle information, at this time, if the parking lot area has a parking sensor sending a sensing signal to the server, and the corresponding time range of the difference between the time of the sensing signal and the vehicle entry time, the vehicle can be determined to be parked in the parking space sending the sensing signal, and the parking space number and the license plate number are bound; step three, when one of the two adjacent intersection vehicle information collection devices does not send the vehicle image information to the server, the server can determine that the vehicle passes through the other intersection vehicle information collection device, and further determines that the vehicle is located in the parking space interval between the two intersection vehicle information collection devices, in combination with the time when the vehicle passes through the last intersection vehicle information collection device, the server will find out whether there is a parking sensor sending a sensing signal to the server in the time after the time and in the above parking space interval, if there is, the corresponding time range of the difference between the vehicle entry time and the sensing signal time of the vehicle sensor can be used to determine in which parking space the vehicle is parked, and finally the parking space number and the license plate number are bound.

[0049] In addition, the server deletes the license plate number bound with the parking space number and the vehicle image information corresponding to the license plate number when the sensing signal of the parking sensor disappears.

[0050] Navigation modules are arranged in each query terminal, when the query terminal finds the parking space number corresponding to the license plate number, a navigation route between the query terminal and the found parking space is automatically generated and displayed on the query terminal, so as to help the vehicle owner to quickly find the vehicle.

[0051] The application does not need to set video parking space detection terminals on each parking space, but only needs to set corresponding vehicle information collection devices at each intersection and parking lot entrance to accurately find the parking space, and the construction and use and maintenance cost are low. After the vehicle owner finds the parking space where the vehicle is parked, the application has a navigation function, improves the vehicle taking efficiency, and improves the vehicle turnover rate of the parking lot. The application does not need the user to use the mobile terminal to download the corresponding App, nor needs to log in to the additional car searching website, but can display the vehicle information of the user on the query terminal, complete the car searching query and route guidance, and reduce the influence of the signal loss of the underground parking lot on the car searching of the user.

[0052] The above-mentioned embodiments of the application do not constitute a limitation on the protection scope of the application. Any modification, equivalent replacement and improvement made within the spirit and principle of the application shall be included in the protection scope of the claims of the application.

Claims

1. A reverse vehicle search system, characterized by, The reverse vehicle searching system comprises an entrance vehicle information acquisition device, a server, vehicle sensors, a network switch and a query terminal. The entrance vehicle information acquisition device is in communication connection with the server, is arranged at the entrance of the parking lot, is used for acquiring vehicle image information and vehicle entry time information, and sends the acquired vehicle image information and vehicle entry time information to the server. The vehicle sensors are provided in plurality and are in communication connection with the server, each vehicle sensor is arranged under a parking space in one-to-one correspondence, is used for sensing whether a vehicle is parked on the parking space, and sends a sensing signal to the server. The server comprises a data storage module, a data processing module and a timing module, the data storage module stores original data and real-time data, the original data comprises position information of the entrance vehicle information acquisition device, position information of each parking space, position information of each query terminal and time range information of a test vehicle within a defined vehicle speed range of the parking lot from the position of the entrance vehicle information acquisition device to the position of each parking space; the real-time data comprises vehicle image information and vehicle entry time information received from the entrance vehicle information acquisition device; the timing module is used for recording the driving time between the entrance vehicle information acquisition device sending vehicle image information to the server each time and the vehicle sensor on the corresponding parking space sending a sensing signal to the server; the data processing module is used for extracting an electronic license plate number from the vehicle image information, and comparing the driving time with the original time range information stored in the data storage module, if the driving time is within a certain time range in the original time information, the parking space number corresponding to the time range is bound with the electronic license plate number. The query terminal is provided in plurality, is in communication connection with the server through the network switch, is arranged at the corresponding elevator entrance of the parking lot, is used for receiving a query request to retrieve and display the corresponding information of the parking space number and the license plate number from the server. The reverse vehicle searching system further comprises a plurality of intersection vehicle information acquisition devices in communication connection with the server, the intersection vehicle information acquisition devices are arranged at the corresponding intersections of the parking lot, are used for acquiring vehicle image information and passing time information of a vehicle passing through the position and sending to the server; the data processing module extracts an electronic license plate number from the vehicle image information sent by the intersection vehicle information acquisition device, and compares the electronic license plate number with the electronic license plate number extracted from the vehicle image information sent by the entrance vehicle information acquisition device, judges which area of the parking lot the vehicle stops in, and judges which parking space the vehicle finally stops in in combination with the time of the sensing signal sent by the vehicle sensor in the corresponding time period.

2. The reverse vehicle search system of claim 1, wherein, A navigation module is arranged in each query terminal, the navigation module is used for generating a route between the query terminal and the queried parking space, and displaying on the query terminal.

3. The reverse vehicle search system according to claim 1 or 2, characterized by, The entrance vehicle information acquisition device and the intersection vehicle information acquisition device are both license plate recognition cameras, the parking space sensor is an ultrasonic detector, and the query terminal is a self-service terminal all-in-one machine.

4. A reverse vehicle search method, characterized by: The entrance vehicle information acquisition device is installed at the entrance of the parking lot, the parking space sensor is installed under each parking space, and the query terminal is installed at each elevator entrance of the parking lot. The entrance vehicle information collection device is used to collect vehicle image information and vehicle approach time information, and send the collected vehicle image information and vehicle approach time information to the server. The vehicle sensor is used to sense whether a vehicle is parked on a parking space, and send a sensing signal to the server. The server stores and processes data and counts time. The server stores time range information consumed by a test vehicle from a position of the entrance vehicle information collection device to positions of various parking spaces, vehicle image information and vehicle approach time information received from the entrance vehicle information collection device within a defined vehicle speed range of the parking lot. The server extracts an electronic license plate number from the vehicle image information, compares the driving time with the stored original time range information, and if the driving time is within a certain time range in the original time information, binds the parking space number corresponding to the time range with the electronic license plate number. The query terminal receives parking space query information, and displays corresponding information of the parking space number and the license plate number from the server. The intersection vehicle information collection device is arranged at each intersection of the parking lot and is in communication connection with the server, and is used to collect vehicle image information and passing time information of a vehicle passing through the position and send the information to the server. The server extracts an electronic license plate number from the vehicle image information sent by the intersection vehicle information collection device, and compares the electronic license plate number with the electronic license plate number extracted from the vehicle image information sent by the entrance vehicle information collection device, judges in which area of the parking lot the vehicle is parked, and judges in which parking space the vehicle is finally parked in combination with the time when the sensing signal is sent by the vehicle sensor in the corresponding time period. The server judges in which parking space the vehicle is finally parked in the following steps: step one: for the same vehicle, find out the intersection vehicle information collection device adjacent to the entrance vehicle information collection device, and according to which intersection vehicle information collection device sends the vehicle image information to the server and which intersection vehicle information collection device does not send the vehicle image information to the server, judge whether the vehicle is parked in the parking space between the two intersection vehicle information collection devices or the vehicle is parked in the parking space between the entrance vehicle information collection device and the intersection vehicle information collection device adjacent thereto; Step two: when the intersection vehicle information collection device adjacent to the entrance vehicle information collection device does not send the vehicle image information to the server, the server binds the parking space number with the license plate number according to the corresponding time range in which the time when the sensing signal is sent by the parking space sensor between the entrance vehicle information collection device and the intersection vehicle information collection device adjacent thereto to the server. Step three: when one of the two adjacent intersection vehicle information collection devices does not send vehicle image information to the server, the server first determines the vehicle is located in the parking space interval between the two adjacent intersection vehicle information collection devices, and then combines the time when the vehicle passes through the last intersection vehicle information collection device and the time range in which the parking space sensor sends the sensing signal to the server to bind the parking space number with the license plate number.

5. The reverse vehicle search method according to claim 4, wherein, The server deletes the license plate number bound with the parking space number and the vehicle image information corresponding to the license plate number when the sensing signal of the parking space sensor disappears.

6. The reverse vehicle search method according to claim 4, wherein, The navigation module is arranged in each query terminal, and the query terminal automatically generates the navigation route between the query terminal and the queried parking space when the license plate number corresponding to the parking space number is found, and displays the navigation route on the query terminal.