WO2021031385A1 - 一种寻找车辆的方法、装置、系统、存储介质及用户终端 - Google Patents

一种寻找车辆的方法、装置、系统、存储介质及用户终端 Download PDF

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Publication number
WO2021031385A1
WO2021031385A1 PCT/CN2019/116535 CN2019116535W WO2021031385A1 WO 2021031385 A1 WO2021031385 A1 WO 2021031385A1 CN 2019116535 W CN2019116535 W CN 2019116535W WO 2021031385 A1 WO2021031385 A1 WO 2021031385A1
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WIPO (PCT)
Prior art keywords
vehicle
parking space
location
space number
module
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PCT/CN2019/116535
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English (en)
French (fr)
Inventor
阳俊林
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宇龙计算机通信科技(深圳)有限公司
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Publication of WO2021031385A1 publication Critical patent/WO2021031385A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/20—Instruments for performing navigational calculations
    • G01C21/206—Instruments for performing navigational calculations specially adapted for indoor navigation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/29—Geographical information databases
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F18/00—Pattern recognition
    • G06F18/20—Analysing
    • G06F18/22—Matching criteria, e.g. proximity measures
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00—Scenes; Scene-specific elements
    • G06V20/10—Terrestrial scenes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition
    • G06V30/14—Image acquisition
    • G06V30/148—Segmentation of character regions
    • G06V30/153—Segmentation of character regions using recognition of characters or words
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/14—Traffic control systems for road vehicles indicating individual free spaces in parking areas
    • G08G1/141—Traffic control systems for road vehicles indicating individual free spaces in parking areas with means giving the indication of available parking spaces
    • G08G1/144—Traffic control systems for road vehicles indicating individual free spaces in parking areas with means giving the indication of available parking spaces on portable or mobile units, e.g. personal digital assistant [PDA]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00—Scenes; Scene-specific elements
    • G06V20/60—Type of objects
    • G06V20/62—Text, e.g. of license plates, overlay texts or captions on TV images
    • G06V20/625—License plates

Definitions

  • This application relates to the field of computer technology, and in particular to a method, device, system, storage medium, and user terminal for finding a vehicle.
  • the embodiments of the application provide a method, device, system, storage medium and user terminal for finding a vehicle, which can solve the problem that it is difficult for car owners to find the specific location of the car park because there is no GPS signal in the underground parking lot, and it will take longer to find the car.
  • the technical solution is as follows;
  • an embodiment of the present application provides a method for finding a vehicle, and the method includes:
  • an embodiment of the present application provides a device for finding a vehicle, including:
  • the car-finding instruction receiving module is used to receive the car-finding instruction carrying the vehicle identifier
  • a parking number image reading module connected to the car-finding instruction receiving module, and used to read the parking number image associated with the vehicle identifier;
  • a parking space number acquisition module connected to the parking space number image reading module, and used to parse the parking space number image to obtain the parking space number;
  • a first location acquiring module connected to the car-finding instruction receiving module, and configured to acquire location information of the vehicle associated with the vehicle identifier;
  • a navigation route planning module connected to the first position acquisition module, and used to plan a navigation route according to the current position information and the position information of the vehicle;
  • the display module is connected to the parking space number acquisition module and the navigation route planning module, and is used to display the parking space number and the navigation route.
  • an embodiment of the present application provides a system for finding a vehicle, including the above-mentioned device and a vehicle-mounted terminal, wherein the vehicle-mounted terminal includes:
  • the parking number image acquisition module is used to collect the parking number image through the camera when receiving the reversing instruction sent by the vehicle;
  • the second location acquisition module is used to acquire the location information of the vehicle.
  • the information sending module is connected to the parking lot number image acquisition module and the second location acquiring module, and is used to send the parking lot number image, the location information of the vehicle and the identity of the vehicle to the vehicle Pre-bound user terminal.
  • an embodiment of the present application provides a computer storage medium that stores a plurality of instructions, and the instructions are suitable for being loaded by a processor and executing any of the method steps described above.
  • an embodiment of the present application provides a user terminal, including: a processor and a memory; wherein the memory stores a computer program, and the computer program is adapted to be loaded by the processor and execute any of the above Method steps.
  • the user terminal receives the car-finding instruction carrying the vehicle identification, reads the pre-stored parking space number image associated with the vehicle identification, analyzes the parking space number image to obtain the parking space number; Identify the location information of the associated vehicle, plan a navigation route based on the current location information and the location information of the vehicle; finally display the parking space number and the navigation route.
  • the embodiment of the application obtains the parking space number image around the parking space, analyzes the parking space number image to obtain the parking space number, and finally displays the parking space number to guide the user to find the vehicle; the embodiment of the application does not detect the GPS signal Under the circumstances, the specific location of the vehicle can also be accurately found.
  • FIG. 1 is a schematic structural diagram of a system architecture provided by an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a method for finding a vehicle provided by an embodiment of the present application
  • FIG. 3 is a schematic flowchart of a method for analyzing a parking space number image to obtain a parking space number provided by an embodiment of the present application;
  • FIG. 4 is a schematic flowchart of a method for a vehicle-mounted terminal to obtain location information of a vehicle associated with a vehicle identifier according to an embodiment of the present application;
  • FIG. 5 is a schematic flowchart of a method for a mobile terminal to obtain location information of a vehicle associated with a vehicle identifier according to an embodiment of the present application
  • FIG. 6 is a schematic structural diagram of a device for finding a vehicle provided by an embodiment of the present application.
  • Fig. 7 is a schematic structural diagram of a user terminal provided by an embodiment of the present application.
  • the system architecture may include a user terminal 1 and a vehicle-mounted terminal 2.
  • the vehicle-mounted terminal 2 and the user terminal 1 may implement remote wireless channel data transmission through a private network or a public wireless communication network;
  • Networks include RF (Radio Frequency) data transmission stations, wireless local area networks (WLAN), etc.
  • public wireless communication networks include GSM (Global System for Mobile Communication, Global System for Mobile Communications), GPRS (General Packet Radio Service, General Packet Radio Service) Technology), 3G (third-generation mobile communication technology), 4G (fourth-generation mobile communication technology), 5G (fifth-generation mobile communication technology), etc.
  • the vehicle-mounted terminal 2 and the user terminal 1 may also be used for short-distance data transmission through radio frequency identification technology, infrared technology or Bluetooth technology.
  • the user terminal 1 may include a tablet computer, a personal computer (PC), a smart phone, a palmtop computer, and a mobile Internet device (MID), and other terminal devices with data operation and processing functions.
  • PC personal computer
  • MID mobile Internet device
  • the vehicle-mounted terminal 2 is the front-end equipment of the vehicle monitoring and management system, which is connected to the vehicle's oil circuit, circuit, door sensor and the vehicle's anti-theft device, and can control the vehicle in all directions; it is mainly composed of sensors, vehicle video server, LCD touch screen, external camera, call handle, car alarm and other external equipment.
  • the main execution steps include:
  • the image of the parking space number, the location information of the vehicle and the identity of the vehicle are sent to the user terminal 1 pre-bound with the vehicle.
  • the vehicle-mounted terminal 2 specifically performs the following operations when acquiring the location information of the vehicle:
  • S401 Detect the strength of wifi signals emitted by at least three wifi hotspots deployed in the parking lot;
  • S402 Obtain a wifi location fingerprint database associated with a parking lot
  • S403 Calculate the location information of the vehicle corresponding to the wifi signal strength according to the wifi location fingerprint library.
  • the vehicle-mounted terminal 2 will acquire the position information of the vehicle at the same time or after the reversing command is received to reverse the vehicle; specifically, the vehicle-mounted terminal 2 will first detect the strength of the wifi signal emitted by each wifi hotspot deployed in the parking lot ; After getting the signal strength of each wifi hotspot, to determine the location of the vehicle terminal 2, it is necessary to find the most matching fingerprint in the wifi location fingerprint database. Once the best match is found, then the location of the vehicle terminal 2 is estimated This is the position corresponding to the best matching fingerprint.
  • the wifi fingerprint database stores multiple location information and the signal strength of each wifi hotspot corresponding to each location information.
  • the user terminal 1 receives the car-finding instruction carrying the vehicle identification, reads the pre-stored parking space number image associated with the vehicle identification, analyzes the parking space number image to obtain the parking space number;
  • the location information of the vehicle associated with the vehicle identifier, and the navigation route is planned based on the current location information and the location information of the vehicle; finally, the parking number and the navigation route are displayed.
  • the embodiment of the application obtains the parking space number image around the parking space, analyzes the parking space number image to obtain the parking space number, and finally displays the parking space number to guide the user to find the vehicle; the embodiment of the application does not detect the GPS signal Under the circumstances, the specific location of the vehicle can also be accurately found.
  • FIG. 2 provides a schematic flowchart of a method for finding a vehicle according to an embodiment of the present application.
  • the method of the embodiment of the present application may include the following steps:
  • the car-finding command is used to find a vehicle.
  • the car-finding command can be generated by the user terminal based on the car-finding operation triggered by the user.
  • the type of the car-finding operation can be one of touch operation, voice control operation, key operation or somatosensory operation Or multiple.
  • the vehicle identification is used to uniquely identify the identity of the vehicle. Different vehicles have different vehicle identifications.
  • the vehicle identification may be a vehicle identification number (VIN).
  • the user terminal is a terminal equipped with a touch screen.
  • the user terminal displays a car-finding user interface.
  • the user interface is provided with an icon of the vehicle to be found.
  • the icon is associated with the VIN of the vehicle to be found.
  • the touch screen detects the occurrence of the icon. When you click the manipulation operation, get the VIN associated with the icon, and then generate a car search command based on the VIN.
  • S202 Read a parking space number image associated with the vehicle identification, and parse the parking space number image to obtain a parking space number.
  • the parking space number image is a video image including the parking space number.
  • the parking position number image may be the image collected by the control camera when the vehicle-mounted terminal receives the reversing instruction; after the camera collects the parking position number image, the parking position number image is stored in the vehicle-mounted terminal, and the vehicle-mounted terminal
  • the parking space number image is associated with the VIN of the vehicle.
  • the user terminal finds the corresponding vehicle-mounted terminal through the VIN, and reads the parking position number image associated with the VIN in the vehicle-mounted terminal.
  • the parking space number image captured by the camera also includes a video image of the surrounding environment of the parking space. Therefore, in order to obtain the parking space number, it is also necessary to analyze the parking space number image.
  • the character area is an area that only includes the parking number.
  • the character area may be rectangular, circular, or elliptical; the following is a detailed description of the case when the character area is rectangular.
  • the length of the character area may be between the left and right ends of the parking space number.
  • the width of the character area may be the vertical distance between the upper and lower ends of the parking space number; through the above setting, the character area is a small area including the parking space number to facilitate the recognition of the parking space number.
  • the detection of the character area can be realized by a character area positioning algorithm, a glue character segmentation algorithm, and a glue judgment algorithm.
  • a character area positioning algorithm By detecting the character area containing the parking number in the parking number image, the character area containing the parking number is segmented.
  • the character area positioning algorithm is based on the texture characteristics of the characters; first, the parking space number image is DCT transformed, and then the energy value of each character area is calculated to obtain a relatively rough selection, and then proceed Morphological operation, filter out some areas that do not meet the character characteristics, so as to extract the character area in the image.
  • the processed binarized image can more highlight the contour of the parking space number.
  • S303 Perform character recognition on the binary image based on an optical recognition character OCR algorithm to obtain the parking space number.
  • OCR algorithm includes two ways of template matching and feature extraction to realize character recognition.
  • template matching is taken as an example for detailed description.
  • the character recognition of the binary image based on the optical recognition character OCR algorithm to obtain the parking space number may include the following steps:
  • the parking space number is generally relatively simple characters such as D12 and E12. Therefore, in the embodiment of the present application, it is simpler and more accurate to realize character recognition by using template matching.
  • S203 Acquire location information of a vehicle associated with the vehicle identifier.
  • the embodiment of the application will not only obtain the parking space number of the vehicle in the parking lot, but also obtain the position information of the vehicle in the parking lot, so as to find the vehicle for the user from both the parking space number and the vehicle location. Provide references to ensure that users can find vehicles accurately and quickly.
  • the position information of the vehicle can be obtained through multiple positioning technologies such as WiFi positioning, Bluetooth positioning, RFID, Zigbee positioning, infrared positioning, or UWB (Ultra Wide Band) positioning; the above positioning technologies are applied to outdoor spaces compared to GPS, Beidou, etc.
  • WiFi positioning Wireless Fidelity
  • RFID Wireless Fidelity
  • RFID Magnetic Ink Characteristics
  • UWB Ultra Wide Band
  • the following takes wifi positioning as an example to describe in detail the method of obtaining the location information of the vehicle in the underground parking lot; specifically, please refer to Figure 4.
  • the obtaining of the location information of the vehicle includes the following steps (the following steps start from the vehicle terminal 2 according to The signal strength of the Wi-Fi hotspots deployed in the parking lot and the detected Wi-Fi hotspots is used to analyze how to obtain the location information of the vehicle):
  • S401 Detect the strength of wifi signals emitted by at least three wifi hotspots deployed in the parking lot;
  • S402 Obtain a wifi location fingerprint database associated with a parking lot
  • S403 Calculate the location information of the vehicle corresponding to the wifi signal strength according to the wifi location fingerprint library.
  • the S203 (here starting from the user terminal 1 side, analyzing how the user terminal 1 obtains the vehicle location information obtained in advance by the vehicle-mounted terminal 2) may include the following steps:
  • S501 Determine a vehicle associated with the vehicle identifier; wherein a tracker client is installed in the vehicle;
  • the tracker client is software installed on each vehicle and used to implement signal interaction with the user terminal 1; the tracker client and the user terminal 1 mainly implement the transmission of vehicle location information.
  • the user terminal When the user terminal receives the car-finding instruction, it will send a location query request to the tracker server. At the same time, the user terminal will also send the vehicle's VIN to the tracker server to determine the vehicle to be found through the VIN .
  • S502 Send a location query request to the tracker client in the vehicle through the tracker server;
  • the location query request is a message sent by the user terminal to the tracker server when receiving the car-finding instruction. After determining the vehicle to be found through the VIN, the tracker server will further send the location query request to the tracker client of the vehicle.
  • S503 Receive a location query response sent by the tracker client in the vehicle in response to the location query request;
  • S504 Parse the location query response to obtain location information of the vehicle.
  • the tracker client After receiving the location query request, the tracker client sends a location query response to the user terminal.
  • the location query response includes the location information of the vehicle; the user terminal needs to parse the location query response to obtain the location of the vehicle information.
  • S204 Plan a navigation route based on the current location information and the location information of the vehicle.
  • the embodiment of the present application will further combine the electronic map in the parking lot and the user's current location information to plan the arrival of the vehicle for the user Appropriate navigation route; to guide the user to the location of the vehicle quickly.
  • the navigation route is the shortest route to the vehicle position starting from the current position; the planning of the navigation route includes the following steps:
  • S601 Determine the initial intersection closest to the current position, and set other intersections as candidate intersections
  • S602 Calculate the reference time for starting from the initial intersection and directly reaching each intersection in the set of to-be-selected intersections;
  • S603 Select the intersection with the shortest reference time from the initial intersection and directly arrive at the set of candidate intersections as the next intersection, and remove the selected next intersection from the set of candidate intersections;
  • the route with the shortest reference time from the initial intersection to the target intersection is taken as the target route.
  • infinity is used to represent the reference time from the initial intersection directly to the intersection or the reference time to reach the intersection directly through the intermediate point ;
  • the reference time to reach any intersection can be calculated based on the user's walking speed and the distance from the previous intersection to the intersection.
  • S205 Display the parking space number and the navigation route.
  • the parking space number and the navigation route can be displayed for the user to view at the same time; it can also be the two control buttons that display the parking space number and the navigation route, which can be operated by the user After one of the control buttons, the display interface of the parking number or navigation route corresponding to the operated control button is entered.
  • the user terminal 1 receives the car-finding instruction carrying the vehicle identification, reads the pre-stored parking space number image associated with the vehicle identification, analyzes the parking space number image to obtain the parking space number;
  • the location information of the vehicle associated with the vehicle identifier, and the navigation route is planned based on the current location information and the location information of the vehicle; finally, the parking number and the navigation route are displayed.
  • the embodiment of the application obtains the parking space number image around the parking space, analyzes the parking space number image to obtain the parking space number, and finally displays the parking space number to guide the user to find the vehicle; the embodiment of the application does not detect the GPS signal Under the circumstances, the specific location of the vehicle can also be accurately found.
  • FIG. 3 and FIG. 5 provide a schematic flowchart of a method for finding a vehicle according to an embodiment of the present application.
  • the method of finding a vehicle is applied to the user terminal 1 as an example.
  • parsing the parking space number image to obtain the parking space number in S202 may include the following steps:
  • S303 Perform character recognition on the binary image based on an optical recognition character OCR algorithm to obtain the parking space number.
  • S203 may include the following steps:
  • S501 Determine a vehicle associated with the vehicle identifier; wherein a tracker client is installed in the vehicle;
  • S502 Send a location query request to the tracker client in the vehicle through the tracker server;
  • S503 Receive a location query response sent by the tracker client in the vehicle in response to the location query request;
  • S504 Parse the location query response to obtain location information of the vehicle.
  • the method for finding a vehicle further includes: when it is detected that the distance between the user terminal 1 and the vehicle is less than a preset distance, sending voice prompt instruction information to the vehicle; wherein the voice prompt instruction information is used for Instruct the vehicle to emit a sound prompt.
  • prompting instruction information is sent to the vehicle at this time, so that the vehicle emits a sound prompt; it is convenient for the user to quickly locate the location of the vehicle.
  • the user terminal 1 receives the car-finding instruction carrying the vehicle identification, reads the pre-stored parking space number image associated with the vehicle identification, analyzes the parking space number image to obtain the parking space number;
  • the location information of the vehicle associated with the vehicle identifier, and the navigation route is planned based on the current location information and the location information of the vehicle; finally, the parking space number and the navigation route are displayed.
  • the embodiment of the application obtains the parking space number image around the parking space, analyzes the parking space number image to obtain the parking space number, and finally displays the parking space number to guide the user to find the vehicle; the embodiment of the application does not detect the GPS signal Under the circumstances, it can also accurately find the specific location of the vehicle.
  • FIG. 6 provides a schematic structural diagram of an apparatus for finding a vehicle according to an embodiment of the present application.
  • the apparatus of the embodiment of the present application may include: a user terminal 1, and the user terminal 1 includes:
  • the car-finding instruction receiving module 601 is used to receive a car-finding instruction carrying a vehicle identifier
  • a parking number image reading module 602 connected to the car-finding instruction receiving module 601, for reading the parking number image associated with the vehicle identification;
  • the parking space number acquisition module 603 is connected to the parking space number image reading module 602, and is used to analyze the parking space number image to obtain the parking space number;
  • the first location acquiring module 604 is connected to the car-finding instruction receiving module 601, and is configured to acquire location information of the vehicle associated with the vehicle identifier;
  • the navigation route planning module 605 is connected to the first position acquisition module 604, and is used to plan a navigation route according to the current position information and the position information of the vehicle;
  • the display module 606 is connected to the parking space number obtaining module 603 and the navigation route planning module 605, and is used to display the parking space number and the navigation route.
  • the first position obtaining module 604 includes:
  • a vehicle determining unit connected to the car-finding instruction receiving module 601, and used to determine the vehicle associated with the vehicle identifier; wherein a tracker client is installed in the vehicle;
  • a location query request sending unit connected to the vehicle determination unit, for sending a location query request to the tracker client in the vehicle through the tracker server;
  • a location query response receiving unit connected to the location query request sending unit, and configured to receive a location query response sent by the tracker client in the vehicle in response to the location query request;
  • the first location obtaining unit is connected to the location query response receiving unit, and is used to parse the location query response to obtain the location information of the vehicle.
  • the parking space number obtaining module 603 includes:
  • a character area detection unit connected to the parking space number image acquisition module, and used to detect the character area in the parking space number image
  • a binarized image acquisition unit connected to the character area detection unit, and configured to perform binarization processing on the character area to obtain a binarized image
  • the parking space number acquisition unit is connected to the binarized image acquisition unit, and is configured to perform character recognition on the binarized image based on an optical recognition character OCR algorithm to obtain the parking space number.
  • the user terminal 1 further includes an instruction information sending module, which is used to detect the distance between the user terminal 1 and the vehicle, and when the distance is less than a preset distance, send voice prompt instruction information to the vehicle ;
  • the voice prompt indication information is used to instruct the vehicle to issue a voice prompt.
  • FIG. 1 provides a schematic structural diagram of a system for finding a vehicle in this embodiment of the application.
  • the system of the embodiment of the present application may include the above-mentioned device and a vehicle-mounted terminal 2.
  • the vehicle terminal 2 includes:
  • the parking lot number image acquisition module is used to collect the parking lot number image through the camera when receiving the reversing instruction sent by the vehicle; when the vehicle sends the reversing instruction, the on-board terminal 2 receives the reversing instruction, starts the camera to collect the parking lot number image, and Store the collected parking lot number image together with the VIN of the corresponding vehicle in the vehicle terminal.
  • the second location acquiring module is used to acquire location information of the vehicle
  • the information sending module is connected to the parking lot number image acquisition module and the second location acquiring module, and is used to send the parking lot number image, the location information of the vehicle and the identity of the vehicle to the vehicle Pre-bound user terminal 1.
  • the second location acquisition module includes:
  • the wifi signal strength detection unit is used to detect the wifi signal strength of at least three wifi hotspots deployed in the parking lot;
  • the wifi location fingerprint database acquisition unit is used to acquire the wifi location fingerprint database associated with the parking lot.
  • the second location acquiring unit is connected to the wifi signal strength detecting unit and the wifi location fingerprint database acquiring unit, and is configured to calculate the location information of the vehicle corresponding to the wifi signal strength according to the wifi location fingerprint database.
  • system may further include:
  • the location query request receiving module receives the location query request sent from the user terminal 1 through the tracker client;
  • a location query request response module connected to the location query request receiving module, and used to obtain location information of the vehicle in response to the location query request;
  • the information sending module is also connected to the location query request response module, and is configured to send a location query response carrying the location information of the vehicle to the user terminal.
  • the vehicle finding system executes the method of finding a vehicle
  • the above functions can be assigned to different functions according to needs.
  • Module completion means dividing the internal structure of the device into different functional modules to complete all or part of the functions described above.
  • the system for finding a vehicle provided in the above-mentioned embodiment belongs to the same concept as the embodiment of the method for finding a vehicle.
  • the method embodiment which will not be repeated here.
  • the user terminal 1 receives the car-finding instruction carrying the vehicle identification, reads the pre-stored parking space number image associated with the vehicle identification, analyzes the parking space number image to obtain the parking space number;
  • the location information of the vehicle associated with the vehicle identifier, and the navigation route is planned based on the current location information and the location information of the vehicle; finally, the parking number and the navigation route are displayed.
  • the embodiment of the application obtains the parking space number image around the parking space, analyzes the parking space number image to obtain the parking space number, and finally displays the parking space number to guide the user to find the vehicle; the embodiment of the application does not detect the GPS signal Under the circumstances, the specific location of the vehicle can also be accurately found.
  • the embodiment of the present application also provides a computer storage medium.
  • the computer storage medium may store multiple instructions, and the instructions are suitable for being loaded by a processor and executing the method steps of the embodiment shown in FIG. For the process, reference may be made to the specific description of the embodiment shown in FIG. 2, which will not be repeated here.
  • the present application also provides a user terminal, including a processor and a memory; wherein the memory stores a computer program, and the computer program is adapted to be loaded and executed by the processor to realize the search as described in each of the above embodiments. Vehicle approach.
  • the user terminal 1 may include: at least one processor 701, at least one network interface 704, a user interface 703, a memory 705, and at least one communication bus 702.
  • the communication bus 702 is used to implement connection and communication between these components.
  • the user interface 703 may include a display screen (Display) and a camera (Camera), and the optional user interface 703 may also include a standard wired interface and a wireless interface.
  • Display display screen
  • Camera Camera
  • the optional user interface 703 may also include a standard wired interface and a wireless interface.
  • the network interface 704 may optionally include a standard wired interface and a wireless interface (such as a wifi interface).
  • the processor 701 may include one or more processing cores.
  • the processor 701 uses various interfaces and lines to connect various parts of the entire user terminal 1, and executes by running or executing instructions, programs, code sets, or instruction sets stored in the memory 1005, and calling data stored in the memory 705.
  • the processor 701 may use at least one of digital signal processing (Digital Signal Processing, DSP), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), and Programmable Logic Array (Programmable Logic Array, PLA).
  • DSP Digital Signal Processing
  • FPGA Field-Programmable Gate Array
  • PLA Programmable Logic Array
  • the processor 701 may be integrated with one or a combination of a central processing unit (CPU), a graphics processing unit (GPU), a modem, and the like.
  • the CPU mainly processes the operating system, user interface, and application programs; the GPU is used to render and draw the content that the display needs to display; the modem is used to process wireless communication. It is understandable that the above-mentioned modem may not be integrated into the processor 1001, but may be implemented by a chip alone.
  • the memory 705 may include random access memory (RAM), or read-only memory (Read-Only Memory).
  • the memory 705 includes a non-transitory computer-readable storage medium.
  • the memory 705 may be used to store instructions, programs, codes, code sets or instruction sets.
  • the memory 705 may include a program storage area and a data storage area, where the program storage area may store instructions for implementing the operating system and instructions for at least one function (such as touch function, sound playback function, image playback function, etc.), Instructions used to implement the foregoing method embodiments, etc.; the storage data area can store the data involved in the foregoing method embodiments.
  • the memory 705 may also be at least one storage device located far away from the foregoing processor 701.
  • the memory 705 as a computer storage medium may include an operating system, a network communication module, a user interface module, and a touch event response application.
  • the user interface 703 is mainly used to provide an input interface for the user to obtain data input by the user; and the processor 701 may be used to call a touch event response application stored in the memory 705, And specifically perform the following operations:
  • the processor 701 specifically performs the following operations when performing the acquisition of the location information of the vehicle associated with the vehicle identifier:
  • the processor 701 specifically executes the following operations when performing analysis of the parking space number image to obtain the parking space number:
  • processor 701 further performs the following operations:
  • the voice prompt instruction information is sent to the vehicle; wherein the voice prompt instruction information is used to instruct the vehicle to issue a voice prompt.
  • the user terminal receives the car-finding instruction carrying the vehicle identification, reads the pre-stored parking space number image associated with the vehicle identification, analyzes the parking space number image to obtain the parking space number; Identify the location information of the associated vehicle, plan a navigation route based on the current location information and the location information of the vehicle; finally display the parking space number and the navigation route.
  • the embodiment of the application obtains the parking space number image around the parking space, analyzes the parking space number image to obtain the parking space number, and finally displays the parking space number to guide the user to find the vehicle; the embodiment of the application does not detect the GPS signal Under the circumstances, the specific location of the vehicle can also be accurately found.
  • the program can be stored in a computer readable storage medium. During execution, it may include the procedures of the above-mentioned method embodiments.
  • the storage medium can be a magnetic disk, an optical disc, a read-only storage memory or a random storage memory, etc.

Abstract

一种寻找车辆的方法、装置、系统、存储介质及用户终端（1），属于计算机技术领域；其中，方法包括：接收携带有车辆标识的寻车指令（S201）；读取与车辆标识关联的车位号图像，以及解析车位号图像得到车位号（S202）；获取与车辆标识关联的车辆的位置信息（S203）；基于当前位置信息和车辆的位置信息规划导航路线（S204）；显示车位号和导航路线（S205）。通过对停车位周围的车位号图像进行获取，并解析车位号图像以得到车位号，最后显示车位号以指引用户寻找车辆；在检测不到GPS信号的情况下，也能够准确的寻找到车辆的具体位置。

Description

一种寻找车辆的方法、装置、系统、存储介质及用户终端 技术领域
本申请涉及计算机技术领域，尤其涉及一种寻找车辆的方法、装置、系统、存储介质及用户终端。
背景技术
随着汽车拥有量的激增，室内停车位也越来越多；当进入到不是很熟悉的停车场时，人们往往会花费大量的时间来寻找车辆。尤其是在进入到地下停车场时，由于地下无GPS信号，车主将很难找到车停的具体位置，寻车将花费更长的时间。
发明内容
本申请实施例提供了一种寻找车辆的方法、装置、系统、存储介质及用户终端，可以解决地下停车场因无GPS信号，车主很难找到车停的具体位置，寻车将花费更长时间的问题。所述技术方案如下；
第一方面，本申请实施例提供了一种寻找车辆的方法，所述方法包括：
接收携带有车辆标识的寻车指令；
读取与所述车辆标识关联的车位号图像，以及解析所述车位号图像得到车位号；
获取与所述车辆标识关联的车辆的位置信息；
基于当前位置信息和所述车辆的位置信息规划导航路线；
显示所述车位号和所述导航路线。
第二方面，本申请实施例提供了一种寻找车辆的装置，包括：
寻车指令接收模块，用于接收携带有车辆标识的寻车指令；
车位号图像读取模块，与所述寻车指令接收模块连接，用于读取与所述车辆标识关联的车位号图像；
车位号获取模块，与所述车位号图像读取模块连接，用于解析所述车位号图像得到车位号；
第一位置获取模块，与所述寻车指令接收模块连接，用于获取与所述车辆标识关联的车辆的位置信息；
导航路线规划模块，与所述第一位置获取模块连接，用于根据当前位置信息和所述车辆的位置信息规划导航路线；及
显示模块，与所述车位号获取模块和所述导航路线规划模块连接，用于显示所述车位号和所述导航路线。
第三方面，本申请实施例提供了一种寻找车辆的系统，包括上述的装置和车载终端，其中，所述车载终端包括：
车位号图像采集模块，用于在接收到车辆发送的倒车指令时，通过摄像头采集车位号图像；
第二位置获取模块，用于获取所述车辆的位置信息；及
信息发送模块，与所述车位号图像采集模块和所述第二位置获取模块连接，用于将所述车位号图像、所述车辆的位置信息和所述车辆的身份标识发送给与所述车辆预先绑定的用户终端。
第四方面，本申请实施例提供了一种计算机存储介质，所述计算机存储介质存储有多条指令，所述指令适于由处理器加载并执行上述任意一项的方法步骤。
第五方面，本申请实施例提供了一种用户终端，包括：处理器和存储器；其中，所述存储器存储有计算机程序，所述计算机程序适于由所述处理器加载并执行上述任意一项的方法步骤。
本申请一些实施例提供的技术方案带来的有益效果至少包括：
在本申请实施例中，用户终端接收携带车辆标识的寻车指令，并读取预存储的与所述车辆标识关联的车位号图像，解析所述车位号图像得到车位号；获取与所述车辆标识关联的车辆的位置信息，并基于当前位置信息和所述车辆的位置信息规划导航路线；最后显示所述车位号和所述导航路线。本申请实施例通过对停车位周围的车位号图像进行获取，并解析所述车位号图像以得到车位号，最后显示所述车位号以指引用户寻找车辆；本申请实施例在检测不到GPS信号的情况下，也能够准确的寻找到车辆的具体位置。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请实施例提供的一种系统架构的结构示意图；
图2是本申请实施例提供的一种寻找车辆的方法的流程示意图；
图3是本申请实施例提供的一种解析车位号图像得到车位号的方法的流程示意图；
图4是本申请实施例提供的一种车载终端获取与车辆标识关联的车辆的位置信息的方法的流程示意图；
图5是本申请实施例提供的一种移动终端获取与车辆标识关联的车辆的位置信息的方法的流程示意图；
图6是本申请实施例提供的一种寻找车辆的装置的结构示意图；
图7是本申请实施例提供的一种用户终端的结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施例方式作进一步地详细描述。
下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本申请相一致的所有实施方式。相反，它们仅是如所附权利要求书中所详述的、本申请的一些方面相一致的装置和方法的例子。
在本申请的描述中，需要理解的是，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。此外，在本申请的描述中，除非另有说明，“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示 前后关联对象是一种“或”的关系。
请参见图1，为本申请实施例提供的一种系统架构的示意图。如图1所示，所述系统架构可以包括用户终端1和车载终端2，车载终端2与用户终端1之间可以是通过专用网或公共无线通信网络实现远程无线通道的数据传输；其中，专用网包括RF(Radio Frequency，射频)数传电台、无线局域网(WLAN)等；公共无线通信网络包括GSM(Global System for Mobile Communication，全球移动通信系统)、GPRS(General Packet Radio Service，通用分组无线服务技术)、3G(第三代移动通信技术)、4G(第四代移动通信技术)、5G(第五代移动通信技术)等。车载终端2与用户终端1之间还可以是通过射频识别技术、红外线技术或蓝牙技术实现近距离的数据传输。
所述用户终端1可以包括平板电脑、个人计算机(PC)、智能手机、掌上电脑以及移动互联网设备(MID)等具备数据运算处理功能的终端设备。
所述车载终端2是车辆监控管理系统的前端设备，与车辆的油路、电路、门磁及车上的防盗器相连，可对车辆进行全方位的掌控；其主要由传感器、车载视频服务器、LCD触摸屏、外接摄像机、通话手柄、汽车防盗器等各种外接设备组成。
本申请实施例的车载终端2在寻找车辆时，主要执行步骤包括：
在接收到车辆发送的倒车指令时，通过摄像头采集车位号图像；
获取所述车辆的位置信息；
将所述车位号图像、所述车辆的位置信息和所述车辆的身份标识发送给与所述车辆预先绑定的用户终端1。
请参见图4，在一个实施例中，所述车载终端2在执行获取所述车辆的位置信息时，具体执行以下操作：
S401，探测停车场内部署的至少三个wifi热点发射的wifi信号强度；
S402，获取停车场关联的wifi位置指纹库；
S403，根据所述wifi位置指纹库计算所述wifi信号强度对应所述车辆的位置信息。
车载终端2在接收到倒车指令进行倒车的同时或在倒车结束后，会对车辆的位置信息进行获取；具体地，车载终端2首先会探测停车场内部署的各 个wifi热点发射出的wifi信号强度；在得到各个wifi热点的信号强度后，要确定车载终端2的位置，就要在wifi位置指纹数据库中找到与之最匹配的指纹，一旦找到最佳匹配，那么车载终端2的位置就被估计为这个最佳匹配的指纹所对应的位置。wifi指纹数据库内存储有多个位置信息以及与每个位置信息相对应的各个wifi热点的信号强度。
在本申请实施例中，用户终端1接收携带车辆标识的寻车指令，并读取预存储的与所述车辆标识关联的车位号图像，解析所述车位号图像得到车位号；获取与所述车辆标识关联的车辆的位置信息，并基于当前位置信息和所述车辆的位置信息规划导航路线；最后显示所述车位号和所述导航路线。本申请实施例通过对停车位周围的车位号图像进行获取，并解析所述车位号图像以得到车位号，最后显示所述车位号以指引用户寻找车辆；本申请实施例在检测不到GPS信号的情况下，也能够准确的寻找到车辆的具体位置。
下面将结合附图2，对本申请实施例提供的寻找车辆的方法进行详细介绍。请参见图2，为本申请实施例提供了一种寻找车辆的方法的流程示意图。如图2所示，本申请实施例的所述方法可以包括以下步骤：
S201、接收携带有车辆标识的寻车指令。
其中，寻车指令用于寻找车辆，寻车指令可以是用户终端基于用户触发的寻车操作生成的，寻车操作的类型可以是触控操作、声控操作、按键操作或体感操作中的一种或多种。车辆标识用于唯一标识车辆的身份，不同的车辆的车辆标识不同，车辆标识可以是车辆识别码(vehicle identification number，VIN)。
例如：用户终端是设置有触摸屏的终端，用户终端显示一个寻车的用户界面，该用户界面上设置有待寻找的车辆的图标，该图标关联有待寻找的车辆的VIN，触摸屏检测到图标上发生的单击操控操作时，获取图标关联的VIN，然后基于该VIN生成寻车指令。
S202，读取与所述车辆标识关联的车位号图像，以及解析所述车位号图像得到车位号。
其中，车位号图像是包括车位号的视频图像。车位号图像可以是车载终端在接收到倒车指令时，控制摄像头采集到的图像；摄像头在采集到车位号图像后，将所述车位号图像存储于车载终端中，存储于车载终端中的所述车位号图像关联有车辆的VIN。用户终端在接收到寻车指令后，通过VIN查找到对应的车载终端，并读取所述车载终端中与VIN关联的车位号图像。
摄像头拍摄到的车位号图像中除车位号外，还包括停车位周围环境的视频图像，因此，为获得车位号，还需要对车位号图像进行解析。
以下对解析所述车位号图像得到车位号的具体实现步骤进行详细说明，请参见图3，其可以包括以下步骤：
S301，检测所述车位号图像中的字符区域；
其中，字符区域是仅包括车位号的区域。所述字符区域可以呈矩形、圆形或椭圆形；以下针对字符区域为矩形时的情况进行详细说明，所述字符区域呈矩形时，所述字符区域的长度可以为车位号的左右两端点的水平距离，所述字符区域的宽度可以为车位号的上下两端点的垂直距离；通过上述设置，使得字符区域是包括车位号的较小区域，以利于对车位号的识别。
所述字符区域的检测可通过字符区域定位算法、粘连字符分割算法和粘连判断算法实现，通过对车位号图像中包含有车位号的字符区域进行检测，分割出包含有车位号的字符区域。如，采用字符区域定位算法，字符区域定位算法是基于字符的纹理特征进行处理的；首先将车位号图像进行DCT变换，之后计算每个字符区域的能量值以得到一个比较粗略的选区，然后进行形态学操作，滤掉一些不符合字符特征的区域，从而将图像中的字符区域提取出来。
S302，将所述字符区域进行二值化处理得到二值化图像；
通过对字符区域进行二值化处理，可使处理后的二值化图像更能凸显出车位号的轮廓。
S303，基于光学识别字符OCR算法对所述二值化图像进行字符识别得到所述车位号。
OCR算法包括模板匹配和特征提取两种方式实现字符的识别。此处以模板匹配为例进行详细说明，基于光学识别字符OCR算法对二值化图像进行字 符识别得到所述车位号可以包括以下步骤：
提取二值化图像中的多个字符图像特征；
将每个所述字符图像特征与字符样本库内字符的特征进行匹配；
将字符样本库内与每个所述字符图像特征最匹配的字符依次排列，即得到所述车位号。
车位号一般为D12、E12等较为简单的字符，因此本申请实施例采用模板匹配的方式实现字符的识别要更为简单、准确。
S203，获取与所述车辆标识关联的车辆的位置信息。
为方便用户查找车辆，本申请实施例不仅会获取车辆在停车场内的车位号，还会对车辆在停车场内的位置信息进行获取，以从车位号和车辆位置两个方面为用户寻找车辆提供参考，确保用户能够准确、快速的寻找到车辆。
所述车辆的位置信息可以是通过wifi定位、蓝牙定位、RFID、Zigbee定位、红外定位或UWB(超宽带)定位等多种定位技术得到；以上定位技术相较于GPS、北斗等应用于户外空间的卫星导航定位技术而言，其在室内的定位精度能够达到厘米级，具有较高的定位准确度和定位精度，且不会对同一环境下的其他设备产生干扰、穿透性较强。
以下以wifi定位为例，对地下停车场内车辆的位置信息获取方法进行详细说明；具体地，请参见图4，车辆的位置信息的获取包括以下步骤(以下步骤是从车载终端2出发，根据停车场内部署的wifi热点及检测到的wifi热点的信号强度来分析如何得到车辆的位置信息)：
S401，探测停车场内部署的至少三个wifi热点发射的wifi信号强度；
S402，获取停车场关联的wifi位置指纹库；
S403，根据所述wifi位置指纹库计算所述wifi信号强度对应所述车辆的位置信息。
可选地，请参见图5，所述S203(此处是从用户终端1侧出发，分析用户终端1如何获取车载终端2预先得到的车辆的位置信息)可以包括以下步骤：
S501，确定与所述车辆标识关联的车辆；其中，所述车辆中安装有跟踪 器客户端；
跟踪器客户端是每个车辆上安装的、用于与用户终端1实现信号交互的软件；跟踪器客户端与用户终端1之间主要实现车辆的位置信息的传输。当用户终端接收到寻车指令后，会向所述跟踪器服务器发出位置查询请求，与此同时，用户终端还会将车辆的VIN发送至跟踪器服务器，以通过所述VIN确定待寻找的车辆。
S502，通过跟踪器服务端向所述车辆中的跟踪器客户端发送位置查询请求；
所述位置查询请求是用户终端在接收到寻车指令的同时，向跟踪器服务器发出的信息。通过VIN确定待寻找的车辆后，跟踪器服务器会进一步的向该车辆的跟踪器客户端发送所述位置查询请求。
S503，接收所述车辆中的跟踪器客户端响应于所述位置查询请求发送的位置查询响应；
S504，解析所述位置查询响应得到所述车辆的位置信息。
跟踪器客户端在接收到所述位置查询请求后会向用户终端发出位置查询响应，所述位置查询响应中包括车辆的位置信息；用户终端需解析所述位置查询响应以获取所述车辆的位置信息。
S204，基于当前位置信息和所述车辆的位置信息规划导航路线。
为方便用户在不熟悉的环境中快速找到车辆，在确定出车辆的位置信息后，本申请实施例将进一步的结合停车场内的电子地图、用户的当前位置信息，为用户规划出到达车辆的合适的导航路线；以指引用户快速通往车辆所在的位置。
所述导航路线是以当前位置为起点到达车辆位置的最短路线；所述导航路线的规划包括以下步骤：
S601，确定距离当前位置最近的初始路口，并将其他路口作为待选路口集合；
S602，计算从所述初始路口出发直接到达所述待选路口集合中的每个路口的参考用时；
S603，选择从所述初始路口出发直接到达所述待选路口集合中参考用时最短的路口作为下一路口，并从所述待选路口集合中去除选择出的所述下一路口；
S604，将选择出的所述下一路口作为中间点，并计算从所述初始路口出发途经所述中间点直接到达所述待选路口集合中的每个路口的参考用时，并与从所述初始路口出发直接到达所述每个路口的参考用时进行比较，以得出从所述初始路口出发到达所述每个路口的最短参考用时；
S605，比较从所述初始路口出发到达所述每个路口的最短参考用时，选出从所述初始路口出发到达所述待选路口集合中参考用时最短的另一路口，并从所述待选路口集合中去除选择出的所述另一路口，以及将所述另一路口作为所述下一路口继续选择从所述初始路口出发到达所述待选路口集合中参考用时最短的其他路口，直至选出距离所述车辆位置最近的目标路口；
S606，将从所述初始路口出发到达所述目标路口参考用时最短的路线作为所述目标路线。
若从初始路口出发无法直接到达任一路口时或途经中间点无法直接到达任一路口，则用无穷大来表示从初始路口出发直接到达该路口的参考用时或途经中间点直接到达该路口的参考用时；到达任一路口的参考用时可以根据用户的行走速度和从前一路口到达该路口的距离计算。
S205，显示所述车位号和所述导航路线。
在得到车位号和导航路线后，可将所述车位号和所述导航路线同时显示以供用户查看；也可以是显示所述车位号和所述导航路线的两个控制按键，由用户操作其中一个所述控制按键后，进入到与操作的控制按键相对应的车位号或导航路线的显示界面。
在本申请实施例中，用户终端1接收携带车辆标识的寻车指令，并读取预存储的与所述车辆标识关联的车位号图像，解析所述车位号图像得到车位号；获取与所述车辆标识关联的车辆的位置信息，并基于当前位置信息和所述车辆的位置信息规划导航路线；最后显示所述车位号和所述导航路线。本申请实施例通过对停车位周围的车位号图像进行获取，并解析所述车位号图 像以得到车位号，最后显示所述车位号以指引用户寻找车辆；本申请实施例在检测不到GPS信号的情况下，也能够准确的寻找到车辆的具体位置。
请参见图3和图5，为本申请实施例提供了一种寻找车辆的方法的流程示意图。本实施例以寻找车辆的方法应用于用户终端1中来举例说明。
可选地，所述S202中解析所述车位号图像得到车位号可以包括以下步骤：
S301，检测所述车位号图像中的字符区域；
S302，将所述字符区域进行二值化处理得到二值化图像；
S303，基于光学识别字符OCR算法对所述二值化图像进行字符识别得到所述车位号。
可选地，所述S203可以包括以下步骤：
S501，确定与所述车辆标识关联的车辆；其中，所述车辆中安装有跟踪器客户端；
S502，通过跟踪器服务端向所述车辆中的跟踪器客户端发送位置查询请求；
S503，接收所述车辆中的跟踪器客户端响应于所述位置查询请求发送的位置查询响应；
S504，解析所述位置查询响应得到所述车辆的位置信息。
可选地，所述寻找车辆的方法还包括：检测到用户终端1与车辆之间的距离小于预设距离时，向所述车辆发送声音提示指示信息；其中，所述声音提示指示信息用于指示所述车辆发出声音提示。
当用户终端1与车辆之间的距离小于预设距离时，即用户已经靠近车辆，此时向所述车辆发送提示指示信息，以使车辆发出声音提示；方便用户快速定位车辆的位置。
在本申请实施例中，用户终端1接收携带车辆标识的寻车指令，并读取预存储的与所述车辆标识关联的车位号图像，解析所述车位号图像得到车位号；获取与所述车辆标识关联的车辆的位置信息，并基于当前位置信息和所述车辆的位置信息规划导航路线；最后显示所述车位号和所述导航路线。本 申请实施例通过对停车位周围的车位号图像进行获取，并解析所述车位号图像以得到车位号，最后显示所述车位号以指引用户寻找车辆；本申请实施例在检测不到GPS信号的情况下，也能够准确的寻找到车辆的具体位置。
请参见图6，为本申请实施例提供了一种寻找车辆的装置的结构示意图。如图6所示，本申请实施例的装置可以包括：用户终端1，所述用户终端1包括：
寻车指令接收模块601，用于接收携带有车辆标识的寻车指令；
车位号图像读取模块602，与所述寻车指令接收模块601连接，用于读取与所述车辆标识关联的车位号图像；
车位号获取模块603，与所述车位号图像读取模块602连接，用于解析所述车位号图像得到车位号；
第一位置获取模块604，与所述寻车指令接收模块601连接，用于获取与所述车辆标识关联的车辆的位置信息；
导航路线规划模块605，与所述第一位置获取模块604连接，用于根据当前位置信息和所述车辆的位置信息规划导航路线；及
显示模块606，与所述车位号获取模块603和所述导航路线规划模块605连接，用于显示所述车位号和所述导航路线。
可选地，所述第一位置获取模块604包括：
车辆确定单元，与所述寻车指令接收模块601连接，用于确定与所述车辆标识关联的车辆；其中，所述车辆中安装有跟踪器客户端；
位置查询请求发送单元，与所述车辆确定单元连接，用于通过跟踪器服务端向所述车辆中的跟踪器客户端发送位置查询请求；及
位置查询响应接收单元，与所述位置查询请求发送单元连接，用于接收所述车辆中的跟踪器客户端响应于所述位置查询请求发送的位置查询响应；及
第一位置获取单元，与所述位置查询响应接收单元连接，用于解析所述位置查询响应得到所述车辆的位置信息。
可选地，所述车位号获取模块603包括：
字符区域检测单元，与所述车位号图像获取模块连接，用于检测所述车位号图像中的字符区域；
二值化图像获取单元，与所述字符区域检测单元连接，用于将所述字符区域进行二值化处理得到二值化图像；及
车位号获取单元，与所述二值化图像获取单元连接，用于基于光学识别字符OCR算法对所述二值化图像进行字符识别得到所述车位号。
可选地，所述用户终端1还包括：指示信息发送模块，用于检测用户终端1与车辆之间的距离，并在所述距离小于预设距离时，向所述车辆发送声音提示指示信息；其中，所述声音提示指示信息用于指示所述车辆发出声音提示。
请参见图1，为本申请实施例提供了一种寻找车辆的系统的结构示意图。如图1所示，本申请实施例的系统可以包括上述所述的装置和车载终端2，
所述车载终端2包括：
车位号图像采集模块，用于在接收到车辆发送的倒车指令时，通过摄像头采集车位号图像；当车辆发出倒车指令时，车载终端2接收到倒车指令，启动摄像头对车位号图像进行采集，并将采集到的车位号图像连同对应的车辆的VIN一同存储到车载终端内。
第二位置获取模块，用于获取所述车辆的位置信息；
信息发送模块，与所述车位号图像采集模块和所述第二位置获取模块连接，用于将所述车位号图像、所述车辆的位置信息和所述车辆的身份标识发送给与所述车辆预先绑定的用户终端1。
可选地，所述第二位置获取模块包括：
wifi信号强度探测单元，用于探测停车场内部署的至少三个wifi热点发射的wifi信号强度；
wifi位置指纹库获取单元，用于获取停车场关联的wifi位置指纹库；及
第二位置获取单元，与所述wifi信号强度探测单元和所述wifi位置指纹库获取单元连接，用于根据所述wifi位置指纹库计算所述wifi信号强度 对应所述车辆的位置信息。
可选地，所述系统还可以包括：
位置查询请求接收模块，通过跟踪器客户端接收来自用户终端1发送的位置查询请求；
位置查询请求响应模块，与所述位置查询请求接收模块连接，用于响应于所述位置查询请求获取车辆的位置信息；
所述信息发送模块，还与所述位置查询请求响应模块连接，用于向所述用户终端发送携带所述车辆的位置信息的位置查询响应。
需要说明的是，上述实施例提供的寻找车辆的系统在执行寻找车辆的方法时，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将设备的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。另外，上述实施例提供的寻找车辆的系统与寻找车辆的方法实施例属于同一构思，其体现实现过程详见方法实施例，这里不再赘述。
上述本申请实施例序号仅仅为了描述，不代表实施例的优劣。
在本申请实施例中，用户终端1接收携带车辆标识的寻车指令，并读取预存储的与所述车辆标识关联的车位号图像，解析所述车位号图像得到车位号；获取与所述车辆标识关联的车辆的位置信息，并基于当前位置信息和所述车辆的位置信息规划导航路线；最后显示所述车位号和所述导航路线。本申请实施例通过对停车位周围的车位号图像进行获取，并解析所述车位号图像以得到车位号，最后显示所述车位号以指引用户寻找车辆；本申请实施例在检测不到GPS信号的情况下，也能够准确的寻找到车辆的具体位置。
本申请实施例还提供了一种计算机存储介质，所述计算机存储介质可以存储有多条指令，所述指令适于由处理器加载并执行如上述图2所示实施例的方法步骤，具体执行过程可以参见图2所示实施例的具体说明，在此不进行赘述。
本申请还提供了一种用户终端，包括处理器和存储器；其中，所述存储 器存储有计算机程序，所述计算机程序适于由所述处理器加载并执行以实现如上各个实施例所述的寻找车辆的方法。
请参见图7，为本申请实施例提供了一种用户终端的结构示意图。如图7所示，所述用户终端1可以包括：至少一个处理器701，至少一个网络接口704，用户接口703，存储器705，至少一个通信总线702。
其中，通信总线702用于实现这些组件之间的连接通信。
其中，用户接口703可以包括显示屏(Display)和摄像头(Camera)，可选用户接口703还可以包括标准的有线接口、无线接口。
其中，网络接口704可选的可以包括标准的有线接口、无线接口(如wifi接口)。
其中，处理器701可以包括一个或者多个处理核心。处理器701利用各种接口和线路连接整个用户终端1内的各个部分，通过运行或执行存储在存储器1005内的指令、程序、代码集或指令集，以及调用存储在存储器705内的数据，执行用户终端1的各种功能和处理数据。可选的，处理器701可以采用数字信号处理(Digital Signal Processing，DSP)、现场可编程门阵列(Field-Programmable Gate Array，FPGA)、可编程逻辑阵列(Programmable Logic Array，PLA)中的至少一种硬件形式来实现。处理器701可集成中央处理器(Central Processing Unit，CPU)、图像处理器(Graphics Processing Unit，GPU)和调制解调器等中的一种或几种的组合。其中，CPU主要处理操作系统、用户界面和应用程序等；GPU用于负责显示屏所需要显示的内容的渲染和绘制；调制解调器用于处理无线通信。可以理解的是，上述调制解调器也可以不集成到处理器1001中，单独通过一块芯片进行实现。
其中，存储器705可以包括随机存储器(Random Access Memory，RAM)，也可以包括只读存储器(Read-Only Memory)。可选的，该存储器705包括非瞬时性计算机可读介质(non-transitory computer-readable storage medium)。存储器705可用于存储指令、程序、代码、代码集或指令集。存储器705可包括存储程序区和存储数据区，其中，存储程序区可存储用于实现操作系统的指令、用于至少一个功能的指令(比如触控功能、声音播放功能、 图像播放功能等)、用于实现上述各个方法实施例的指令等；存储数据区可存储上面各个方法实施例中涉及到的数据等。存储器705可选的还可以是至少一个位于远离前述处理器701的存储装置。如图7所示，作为一种计算机存储介质的存储器705中可以包括操作系统、网络通信模块、用户接口模块以及触控事件响应应用程序。
在图7所示的用户终端1中，用户接口703主要用于为用户提供输入的接口，获取用户输入的数据；而处理器701可以用于调用存储器705中存储的触控事件响应应用程序，并具体执行以下操作：
接收携带有车辆标识的寻车指令；
读取与所述车辆标识关联的车位号图像，以及解析所述车位号图像得到车位号；
获取与所述车辆标识关联的车辆的位置信息；
基于当前位置信息和所述车辆的位置信息规划导航路线；
显示所述车位号和所述导航路线。
在一个实施例中，所述处理器701在执行获取与所述车辆标识关联的车辆的位置信息时，具体执行以下操作：
确定与所述车辆标识关联的车辆；其中，所述车辆中安装有跟踪器客户端；
通过跟踪器服务端向所述车辆中的跟踪器客户端发送位置查询请求；
接收所述车辆中的跟踪器客户端响应于所述位置查询请求发送的位置查询响应；
解析所述位置查询响应得到所述车辆的位置信息。
在一个实施例中，所述处理器701在执行解析所述车位号图像得到车位号时，具体执行以下操作：
检测所述车位号图像中的字符区域；
将所述字符区域进行二值化处理得到二值化图像；
基于光学识别字符OCR算法对所述二值化图像进行字符识别得到所述车位号。
在一个实施例中，所述处理器701还执行以下操作：
检测到用户终端与车辆之间的距离小于预设距离时，向所述车辆发送声音提示指示信息；其中，所述声音提示指示信息用于指示所述车辆发出声音提示。
在本申请实施例中，用户终端接收携带车辆标识的寻车指令，并读取预存储的与所述车辆标识关联的车位号图像，解析所述车位号图像得到车位号；获取与所述车辆标识关联的车辆的位置信息，并基于当前位置信息和所述车辆的位置信息规划导航路线；最后显示所述车位号和所述导航路线。本申请实施例通过对停车位周围的车位号图像进行获取，并解析所述车位号图像以得到车位号，最后显示所述车位号以指引用户寻找车辆；本申请实施例在检测不到GPS信号的情况下，也能够准确的寻找到车辆的具体位置。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，所述的程序可存储于一计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。其中，所述的存储介质可为磁碟、光盘、只读存储记忆体或随机存储记忆体等。
以上所揭露的仅为本申请较佳实施例而已，当然不能以此来限定本申请之权利范围，因此依本申请权利要求所作的等同变化，仍属本申请所涵盖的范围。

Claims (10)

  1. 一种寻找车辆的方法，其特征在于，所述方法包括：
    接收携带有车辆标识的寻车指令；
    读取与所述车辆标识关联的车位号图像，以及解析所述车位号图像得到车位号；
    获取与所述车辆标识关联的车辆的位置信息；
    基于当前位置信息和所述车辆的位置信息规划导航路线；
    显示所述车位号和所述导航路线。
  2. 根据权利要求1所述的方法，其特征在于，所述获取与所述车辆标识关联的车辆的位置信息，包括：
    确定与所述车辆标识关联的车辆；其中，所述车辆中安装有跟踪器客户端；
    通过跟踪器服务端向所述车辆中的跟踪器客户端发送位置查询请求；
    接收所述车辆中的跟踪器客户端响应于所述位置查询请求发送的位置查询响应；
    解析所述位置查询响应得到所述车辆的位置信息。
  3. 根据权利要求1或2所述的方法，其特征在于，所述解析所述车位号图像得到车位号，包括：
    检测所述车位号图像中的字符区域；
    将所述字符区域进行二值化处理得到二值化图像；
    基于光学识别字符OCR算法对所述二值化图像进行字符识别得到所述车位号。
  4. 根据权利要求1或2所述的方法，其特征在于，还包括：
    检测到用户终端与车辆之间的距离小于预设距离时，向所述车辆发送声 音提示指示信息；其中，所述声音提示指示信息用于指示所述车辆发出声音提示。
  5. 一种寻找车辆的装置，其特征在于，包括：
    寻车指令接收模块，用于接收携带有车辆标识的寻车指令；
    车位号图像读取模块，与所述寻车指令接收模块连接，用于读取与所述车辆标识关联的车位号图像；
    车位号获取模块，与所述车位号图像读取模块连接，用于解析所述车位号图像得到车位号；
    第一位置获取模块，与所述寻车指令接收模块连接，用于获取与所述车辆标识关联的车辆的位置信息；
    导航路线规划模块，与所述第一位置获取模块连接，用于根据当前位置信息和所述车辆的位置信息规划导航路线；及
    显示模块，与所述车位号获取模块和所述导航路线规划模块连接，用于显示所述车位号和所述导航路线。
  6. 一种寻找车辆的系统，其特征在于，包括如权利要求5所述的装置和车载终端，其中，所述车载终端包括：
    车位号图像采集模块，用于在接收到车辆发送的倒车指令时，通过摄像头采集车位号图像；
    第二位置获取模块，用于获取所述车辆的位置信息；及
    信息发送模块，与所述车位号图像采集模块和所述第二位置获取模块连接，用于将所述车位号图像、所述车辆的位置信息和所述车辆的身份标识发送给与所述车辆预先绑定的用户终端。
  7. 根据权利要求6所述的系统，其特征在于，所述第二位置获取模块包括：
    wifi信号强度探测单元，用于探测停车场内部署的至少三个wifi热点发射的wifi信号强度；
    wifi位置指纹库获取单元，用于获取停车场关联的wifi位置指纹库；及
    第二位置获取单元，与所述wifi信号强度探测单元和所述wifi位置指纹库获取单元连接，用于根据所述wifi位置指纹库计算所述wifi信号强度对应所述车辆的位置信息。
  8. 根据权利要求6或7所述的系统，其特征在于，所述系统还可以包括：
    位置查询请求接收模块，通过跟踪器客户端接收来自用户终端发送的位置查询请求；及
    位置查询请求响应模块，与所述位置查询请求接收模块连接，用于响应于所述位置查询请求获取车辆的位置信息；
    所述信息发送模块，还与所述位置查询请求响应模块连接，用于向所述用户终端发送携带所述车辆的位置信息的位置查询响应。
  9. 一种计算机存储介质，其特征在于，所述计算机存储介质存储有多条指令，所述指令适于由处理器加载并执行如权利要求1至4任意一项的方法步骤。
  10. 一种用户终端，其特征在于，包括：处理器和存储器；其中，所述存储器存储有计算机程序，所述计算机程序适于由所述处理器加载并执行如权利要求1至4任意一项的方法步骤。
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