CN116506807A - A parking space search method, RFID and communication equipment - Google Patents

Abstract

The invention discloses a parking space searching method, RFID and communication equipment, wherein the method comprises the following steps: the vehicle user triggers the application platform to send a paging instruction to a base station deployed in the parking lot, and the base station instructs the exciter to send an excitation signal and trigger information carrying a label mark to be paged to the vehicle through interaction with the exciter; when the tag of the vehicle judges that the tag identification carried by the received excitation signal is the same as the tag identification of the vehicle, a confirmation signal is returned to the exciter, and the antenna information of the exciter corresponding to the tag is sent to the base station; and the application platform receives the tag and the corresponding antenna information sent by the base station, and locates the position information of the vehicle. According to the invention, the exciter is deployed near the parking space of the parking lot, the vehicle user triggers the vehicle searching operation, the vehicle label signal is acquired, and the corresponding exciter information is extracted, so that the accurate parking space position of the vehicle is calculated. The embodiment of the invention can accurately acquire the parking space information, and the user can effectively and quickly find the vehicle.

Description

A parking space search method, RFID and communication equipment

technical field

The invention relates to the field of communication technology, in particular to a parking space finding method, RFID and communication equipment.

Background technique

After a user parks in a large parking lot for a period of time, he often cannot find a parking space quickly. The general method of finding a parking space is to calibrate the parking space according to the marking and number of the parking space in the parking lot, or mark the parking position of the vehicle and mark it on the map. Navigate to find the vehicle. The first type relies on artificial memory. If the parking space number is forgotten, the vehicle cannot be found. The second type is limited by the accuracy of positioning. In the underground or above-ground covered areas, it is impossible to accurately locate the vehicle position, and it is not easy to find the vehicle.

Contents of the invention

The purpose of the embodiment of the present invention is to provide a parking space finding method, RFID and communication equipment, so as to solve the problem that the vehicle position cannot be accurately located in the existing parking space finding method.

In order to solve the above problems, an embodiment of the present invention provides a method for finding a parking space, the method comprising:

When the vehicle is parked in the parking lot, the exciter deployed in the parking lot reads the entry information of the vehicle, and sends the entry information to the application platform;

The vehicle user triggers the application platform to send a paging instruction to the base station deployed in the parking lot, the paging instruction carries a tag identifier to be paged, and the tag identifier is obtained according to the entry information;

The base station sends a scheduling instruction to the exciter, instructing the exciter to send an excitation signal and trigger information carrying the identification of the tag to be paged to the vehicle;

When the tag of the vehicle determines that the tag identifier carried by the received excitation signal is the same as its own tag identifier, it returns a confirmation signal to the exciter, and sends the antenna information of the exciter corresponding to the tag to the base station;

The application platform receives the tag and the corresponding antenna information sent by the base station, and locates the location information of the vehicle.

Further, the application platform is provided with a fingerprint library, and the fingerprint library stores the corresponding relationship between signal strength and location information, and the application platform receives the label and the corresponding antenna information sent by the base station, and locates the location information of the vehicle, include:

The application platform obtains the position information corresponding to the tag according to the signal strength of the tag sent by the base station and the corresponding relationship;

The location information of the vehicle is located according to the location information corresponding to the tag and the antenna location information.

Wherein, the triggering the application platform to send the paging instruction to the base station deployed in the parking lot includes:

triggering the application platform to transmit the paging instruction to the AMF;

The AMF sends the paging instruction to the base station deployed in the parking lot.

The embodiment of the present invention also provides a kind of RFID, and described RFID comprises receiver, exciter and label:

The RFID receiver receives the paging instruction sent by the application platform, and the paging instruction carries the label identification to be paged;

The receiver sends a scheduling instruction to the exciter, instructing the exciter to send an excitation signal and trigger information carrying the identification of the label to be paged to the vehicle in the parking lot;

When the RFID tag on the vehicle judges that the tag identification carried by the received excitation signal is the same as its own tag identification, it returns a confirmation signal to the exciter, and sends the tag corresponding to the exciter to the receiver. Antenna information;

The receiver sends the tag and the corresponding antenna information to the application platform, so that the application platform can locate the location information of the vehicle.

Wherein, the receiver and the exciter are deployed separately.

Wherein, the 920-925 frequency band and sharing agreement are adopted between the exciter and the tag, and the 920-925 frequency band and sharing agreement are adopted between the receiver and the tag.

An embodiment of the present invention provides a parking space finding system, the system includes an application platform and the above-mentioned RFID;

The application platform receives the entry information of the vehicle in the parking lot sent by the exciter in the RFID, and carries the tag identification to be paged in the paging instruction according to the entry information of the vehicle; The sent tag and the corresponding antenna information can locate the location information of the vehicle.

Wherein, the application platform is provided with a fingerprint library, and the fingerprint library stores the corresponding relationship between signal strength and location information, and the application platform receives the label and the corresponding antenna information sent by the receiver, and locates the location information of the vehicle, include:

The platform obtains the position information corresponding to the tag according to the signal strength of the tag sent by the receiver and the corresponding relationship;

The location information of the vehicle is located according to the location information corresponding to the tag and the antenna location information.

An embodiment of the present invention also provides a communication device, including a memory, a processor, and a computer program stored on the memory and operable on the processor. When the processor executes the computer program, the above-mentioned to find a parking space.

An embodiment of the present invention also provides a computer-readable storage medium, the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in the parking space finding method described above are implemented.

The technical solution of the present invention has at least the following beneficial effects:

In the parking space search method, RFID and communication equipment provided by the embodiments of the present invention, an actuator is deployed near the parking space in the parking lot. The vehicle user triggers the car search operation, obtains the vehicle tag signal, and extracts the corresponding actuator information, so as to calculate the accuracy of the vehicle. parking space. The embodiments of the present invention can accurately acquire parking space information, and effectively enable users to quickly find vehicles.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention, and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, and do not constitute improper limitations to the present invention. In the attached picture:

Fig. 1 shows the flow chart of the parking space finding method that the embodiment of the present invention provides;

Fig. 2 represents another method flowchart of the parking space finding method provided by the embodiment of the present invention;

FIG. 3 shows a schematic diagram of a separate RFID interaction provided by an embodiment of the present invention;

FIG. 4 shows a schematic diagram of a receiver hardware structure provided by an embodiment of the present invention;

Fig. 5 shows the schematic diagram of the hardware structure of the exciter provided by the embodiment of the present invention;

FIG. 6 shows a schematic diagram of an instruction message sent by a base station to an exciter according to an embodiment of the present invention;

Fig. 7 shows a schematic structural diagram of a parking space finding system provided by an embodiment of the present invention.

Detailed ways

Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.

As shown in Figure 1, the parking space finding method that the embodiment of the present invention provides, comprises:

Step 101: When the vehicle is parked in the parking lot, the actuator deployed in the parking lot reads the entry information of the vehicle and sends the entry information to the application platform;

In the embodiment of the present invention, an exciter is deployed next to each parking space in the parking lot. When a vehicle enters the parking lot, the integrated RFID reader deployed at the entrance reads the entry information of the vehicle and records it on the application platform. A list of vehicle entry and exit information will be established on the platform, including license plate number, tag (Tag), vehicle model, entry time and exit time and other information.

Wherein, the entry information of the vehicle includes the license plate number of the vehicle, which can be input by the user on the user platform, or sent to the application platform by sending a text message or voice.

Step 102: The vehicle user triggers the application platform to send a paging command to the base station deployed in the parking lot. The paging command carries the label identification to be paged, and the label identification is obtained according to the entry information;

In practice, the application platform looks up the tag ID corresponding to the license plate number in the established vehicle entry and exit information list according to the license plate number input by the user when the paging command is triggered, and carries the tag ID in the paging command.

The vehicle user triggers the application platform to send the paging command to the base station deployed in the parking lot, including: triggering the application platform to transmit the paging command to the AMF, and the AMF sends the paging command to the base station deployed in the parking lot.

Step 103: the base station sends a scheduling instruction to the exciter, instructing the exciter to send an excitation signal and trigger information carrying the tag identification to be paged to the vehicle;

Step 104: When the tag of the vehicle judges that the tag identifier carried by the received excitation signal is the same as its own tag identifier, it returns a confirmation signal to the exciter, and sends the antenna information of the exciter corresponding to the tag to the base station;

In this step, the tag of the vehicle obtains the excitation signal sent by the exciter, and based on the tag identification carried in the excitation signal, judges whether it is the same as the tag identification of the tag itself, and if it is the same, returns a confirmation signal to the exciter, that is, RN16 Signal.

Step 105: The application platform receives the tag and the corresponding antenna information sent by the base station, and locates the location information of the vehicle.

Specifically, the application platform is provided with a fingerprint database, and the fingerprint database stores the corresponding relationship between signal strength and location information. This step includes: the application platform obtains the location information corresponding to the label according to the signal strength and corresponding relationship of the label sent by the base station ; According to the location information corresponding to the tag and the antenna location information, locate the location information of the vehicle.

In the parking space search method of the embodiment of the present invention, an exciter is deployed near the parking space. When the user goes out to pay the fee, the car search operation platform is triggered to send a car search signal, instructing the Receiver of the RFID system to send a control command, and the exciter is dispatched to send an excitation signal to trigger Vehicle label feedback information, while carrying the exciter antenna information, find the deployment location information of the exciter antenna stored in the platform, and integrate the existing fingerprint database information to obtain accurate information on vehicle parking spaces, so that the platform sends the accurate parking information of the user's vehicle to the user. It can be integrated with navigation to provide users with car-finding routes.

The embodiment of the present invention optimizes the functional design of the RFID system, and at the same time combines the deployment of the existing base stations to form a distributed new RFID mesh system, which can quickly realize productization and facilitate industrial promotion, and at the same time can achieve a relatively fast reading and writing distance of nearly 100m. big boost.

As shown in Figure 2, an embodiment of the present invention provides a method for finding a parking space, the method comprising:

1. An integrated RFID reader is deployed at the entrance of the parking lot. When a vehicle enters the parking lot, the integrated RFID reader reads the vehicle entry information and records it on the application platform. A list of vehicle entry and exit information is established on the platform, including the license plate number, Electronic license plate tag number (Tag), vehicle model, entry time and exit time and other information.

2. When the user leaves the venue, he or she initiates a car search application. The car search application carries vehicle license information, triggers the platform to initiate a car search instruction to the application platform, or when the user initiates a payment application, triggers the platform to initiate a car search instruction to the application platform. The embodiment does not limit the time point for triggering the platform to perform the car search operation. The platform can be triggered to perform the car search operation when the user exits the venue, or the platform can be triggered to perform the car search operation when the user initiates a payment application. After the payment is completed, the platform pushes the car search operation. car route.

3. The application platform receives the car search command, sends the car search command to AMF, and triggers the network to carry out the "PagingTag" process;

Among them, the user registers the vehicle information on the back-end platform when entering the venue, and at the same time transmits the vehicle information to AMF through the receiver for user registration and identity verification. After passing this process, the vehicle becomes a legal user of the network, and can pass through The upper layer command performs reverse paging.

4. The AMF initiates the "Paging Tag" process, and sends the paging command to the base station deployed in the parking lot, and the signaling includes the tag ID to be paged.

As shown in Figure 3, the embodiment of the present invention deploys the receiver and the exciter separately to reduce the uplink and downlink interference problem of the traditional integrated RFID, and can effectively extend the communication distance between the receiver and the tag (about 100m), realizing a relatively long distance The distance transmission reduces the terminal deployment density, thereby reducing the cost.

The separated receiver and exciter support information transmission based on the public protocol, adopt wired connection, and support receiver's scheduling instructions for the exciter. After the exciter receives the instructions from the receiver, it activates the tag, and the tag feeds back the information to the receiver to complete the complete information interaction process.

The hardware structure of the receiver is shown in Figure 4. The receiver provided by the embodiment of the present invention, because the RFID signal is relatively simple, multiplexes the baseband processing unit of the 5G base station, and adds a radio frequency receiving unit and a receiving antenna to obtain Tag feedback. information to form a base station receiver, thereby effectively improving the feasibility of industrialization and reducing the cost of system deployment. Since the tag needs to directly reflect the signal back to the base station, it is necessary to upgrade the software of the base station in practice, for example, to generate a virtual ID for the Tag to ensure the correct transmission of Tag information in the large network.

The hardware structure of the exciter is shown in Figure 5. The exciter only transmits simple excitation signals, and performs data interaction with the receiver through a wired connection. One exciter can be connected to four antennas, and the antennas are pulled far away, so that one The actuator can activate tags through 4 channels at a time. The embodiment of the present invention considers the corresponding relationship between the antenna and the tag, uses a directional antenna, and activates the tag in a specific direction as accurately as possible.

5. The base station, as a receiver, sends dispatch instructions to the exciter, instructing the exciter to send an excitation signal on a specific frequency band to activate the electronic license plate on the corresponding parking space.

The embodiments of the present invention provide a scheduling scheme between the receiver and the exciter in consideration of the energy efficiency of the entire system and the interference between the exciters. After the base station receives the paging command, it first starts the scheduling of the exciter. Before that, the exciter is in a silent state, so as to reduce energy consumption and improve the energy efficiency of the system.

In addition, the base station has the ability to configure the communication parameters of the exciters, so as to coordinate the interference problem between the exciters when they work at the same time.

The base station in the embodiment of the present invention has two functions: orderly select the exciter; coordinately configure the exciter and issue corresponding parameters.

Regarding the orderly selection of exciters by the base station, the base station can estimate the potential parking area of the vehicle according to the arrival time of the applying user. For higher floors or areas close to the elevator entrance, mark the area with a higher "interest degree", and then mark the "interest degree" value according to the height of the floor or the distance from the elevator entrance. Therefore, the base station can first schedule the exciters in the area with higher interest points, and then spread to the surrounding area with the decrease of the interest degree value, and gradually schedule the exciters.

After the base station selects the scheduled area, it determines the number and distribution of exciters in the area, and configures the communication parameters of the exciters according to the idea of space division multiplexing, including the allocation of exciter ID, communication frequency, power control, and executed operations and other information, orderly control the communication between the exciter and the tag, and avoid the mutual interference of the tag return signals when multiple exciters work at the same time.

The definition of the command message sent by the base station to the exciter is shown in Figure 6. HelperID is the device ID of the exciter itself; Communication ID is the communication ID assigned by the base station to the exciter, which is used for subsequent communication with tags and can be allocated by the base station; command Indicates the communication commands that the exciter needs to perform with the tag, including reading, writing, inventory, etc.; Parameters defines the communication parameters between the exciter and the tag, including frequency, power and other information; Antenna indicates which antenna the exciter uses to stimulate information Send, if it is blank, it means that all antennas are excited, if there is data, follow the following rules: "00" antenna 1, "01" antenna 2, "10" antenna 3, "11" antenna 4.

6. The exciter sends an RFID excitation signal and trigger information with a specific tag ID to the vehicle on the parking space.

7. After the tag receives the excitation signal, it judges whether the Tag ID is the same as itself, and if the same Tag is judged, it will send the RN16 signal to the exciter.

What needs to be explained here is that the existing separate RFID only allows the receiver to receive Tag information, but due to the timeliness requirement of RFID information interaction, the embodiment of the present invention allows the exciter to receive the RN16 information fed back by the RFID.

8. After the exciter receives the RN16 fed back by the tag, it will feed back ACK information;

The RN16 information is carried in the ACK information, indicating that the TAG information has been successfully received, the link has been successfully established, and the information can be received.

9. The paged Tag sends the tag information it carries to the Receiver, and at the same time, in order to realize the positioning capability, the Tag sends the antenna information of the exciter to the Receiver together.

10. After the platform receives the TAG and corresponding antenna information, it combines the information of the fingerprint library to realize the accurate determination of the vehicle location.

In the parking space search method provided by the embodiment of the present invention, an exciter is deployed near the parking space. When the user leaves the venue to pay the fee, the car search operation platform is triggered to send a car search signal, instructing the Receiver of the RFID system to send a control command, and the exciter is dispatched to send an excitation signal. Trigger the feedback information of the vehicle tag, carry the exciter antenna information at the same time, find the deployment location information of the exciter antenna stored in the platform, integrate the existing fingerprint database information, and obtain the accurate information of the vehicle parking space, so that the application platform will send the accurate parking information of the user's vehicle to the user , and can also be integrated with navigation to provide users with car-finding routes.

An embodiment of the present invention provides an RFID, including a receiver, an exciter and a tag:

The RFID receiver receives the paging instruction sent by the application platform, and the paging instruction carries the tag identification to be paged;

The receiver sends a scheduling instruction to the exciter, instructing the exciter to send an excitation signal and trigger information carrying the tag identification to be paged to the vehicle in the parking lot;

When the RFID tag on the vehicle judges that the tag ID carried by the received excitation signal is the same as its own tag ID, it returns a confirmation signal to the exciter, and sends the antenna information of the tag corresponding to the exciter to the receiver;

The receiver sends the tag and the corresponding antenna information to the application platform, so that the application platform can locate the location information of the vehicle.

As shown in Figure 3, in the embodiment of the present invention, the receiver and the exciter are deployed separately, the 920-925 frequency band and sharing protocol are used between the exciter and the tag, and the 920-925 frequency band and sharing agreement are used between the receiver and the tag. protocol.

The RFID in the embodiment of the present invention, after receiving the car-finding signal sent by the application platform, instructs the Receiver of the RFID system to send a control command, dispatches the exciter to send an excitation signal, triggers the feedback information of the vehicle label, and carries the antenna information of the exciter at the same time to search in the platform. The stored location information of the exciter antenna is fused with the existing fingerprint library information to obtain accurate information on the vehicle's parking space, so that the application platform can send the user's vehicle's accurate parking space information to the user, and can also be integrated with the navigation to provide the user with a car-finding route.

When implementing the technical solution provided by the embodiment of the present invention, it can be implemented in the following manner.

As shown in Fig. 7, a kind of parking space finding system provided by the embodiment of the present invention, the parking space finding system includes an application platform and the above RFID;

The application platform receives the entry information of the vehicle in the parking lot sent by the exciter in the RFID, and carries the tag identification to be paged in the paging instruction according to the entry information of the vehicle; receives the tag and the corresponding antenna information sent by the receiver , locate the location information of the vehicle.

Among them, the application platform has a fingerprint library, which stores the corresponding relationship between signal strength and location information. The application platform receives the label and the corresponding antenna information sent by the receiver, and locates the location information of the vehicle, including:

The platform obtains the location information corresponding to the tag according to the signal strength and corresponding relationship of the tag sent by the receiver;

According to the location information corresponding to the tag and the antenna location information, the location information of the vehicle is located.

In the parking space search system of the embodiment of the present invention, the application platform sends a car search signal to the RFID after receiving the trigger from the vehicle user, instructs the Receiver of the RFID system to send a control command, dispatches the exciter to send an excitation signal, and triggers the feedback information of the vehicle label. Carry the exciter antenna information at the same time, find the deployment location information of the exciter antenna stored in the platform, integrate the existing fingerprint database information, and obtain the accurate information of the vehicle parking space, so that the application platform can send the accurate parking space information of the user's vehicle to the user, and can also be integrated with the navigation , to provide users with car search routes.

The embodiment of the present invention also provides a communication device, including a memory, a processor, and a computer program stored in the memory and operable on the processor. When the processor executes the program, it realizes the various processes in the above embodiments of the parking space finding method, And can achieve the same technical effect, in order to avoid repetition, no more details here.

The embodiment of the present invention also provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, each process in the above embodiment of the method for finding a parking space can be realized, and the same technical effect can be achieved. To avoid repetition, details are not repeated here. Wherein, the computer-readable storage medium is, for example, a read-only memory (Read-Only Memory, ROM for short), a random access memory (Random Access Memory, RAM for short), a magnetic disk or an optical disk, and the like.

Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, systems, or computer program products. Accordingly, the present invention can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (10)

1. A method for finding a parking space, the method comprising:

when a vehicle is parked in a parking lot, an exciter arranged in the parking lot reads entrance information of the vehicle and sends the entrance information to an application platform;

the vehicle user triggers the application platform to send a paging instruction to a base station deployed in the parking lot, wherein the paging instruction carries a tag identifier to be paged, and the tag identifier is obtained according to the entrance information;

the base station sends a scheduling instruction to an exciter, and instructs the exciter to send an excitation signal and trigger information carrying the label identification to be paged to the vehicle;

when the tag of the vehicle judges that the tag identification carried by the received excitation signal is the same as the tag identification of the vehicle, a confirmation signal is returned to the exciter, and the antenna information of the exciter corresponding to the tag is sent to the base station;

and the application platform receives the tag and the corresponding antenna information sent by the base station and locates the position information of the vehicle.

2. The method according to claim 1, wherein the application platform is provided with a fingerprint library, the fingerprint library stores a correspondence between signal strength and location information, the application platform receives a tag and corresponding antenna information sent by the base station, and locates the location information of the vehicle, and the method comprises:

the application platform obtains position information corresponding to the tag according to the signal intensity of the tag sent by the base station and the corresponding relation;

and positioning the position information of the vehicle according to the position information corresponding to the tag and the antenna position information.

3. The method of claim 1, wherein the triggering the application platform to send the paging instruction to a base station deployed in a parking lot comprises:

triggering the application platform to transmit the paging instruction to an AMF;

and the AMF sends the paging instruction to a base station deployed in the parking lot.

4. An RFID comprising a receiver, an exciter, and a tag:

the RFID receiver receives a paging instruction sent by an application platform, wherein the paging instruction carries a label identification to be paged;

the receiver sends a scheduling instruction to the exciter, and instructs the exciter to send an excitation signal and trigger information carrying the tag identification to be paged to a vehicle in the parking lot;

when the RFID tag on the vehicle judges that the tag identification carried by the received excitation signal is the same as the tag identification of the RFID tag, a confirmation signal is returned to the exciter, and the antenna information of the exciter corresponding to the tag is sent to the receiver;

the receiver transmits the tag and the corresponding antenna information of the application platform to the application platform so that the application platform locates the position information of the vehicle.

5. The RFID of claim 4, wherein the receiver and the exciter are deployed separately.

6. An RFID device as claimed in claim 4 or 5, wherein the exciter and the tag use a 920-925 band and common protocol, and the receiver and the tag use a 920-925 band and common protocol.

7. A parking space finding system, characterized in that the system comprises an application platform and an RFID as claimed in claim 4 or 5;

the application platform receives the entrance information of the vehicles in the parking lot sent by the exciter in the RFID, and carries a tag identification to be paged in a paging instruction according to the entrance information of the vehicles; and receiving the tag and the corresponding antenna information sent by the receiver, and positioning the position information of the vehicle.

8. The apparatus of claim 7, wherein the application platform is provided with a fingerprint library, the fingerprint library storing a correspondence between signal strength and location information, the application platform receiving the tag and corresponding antenna information transmitted by the receiver, locating the location information of the vehicle, comprising:

the platform obtains position information corresponding to the tag according to the signal intensity of the tag sent by the receiver and the corresponding relation;

and positioning the position information of the vehicle according to the position information corresponding to the tag and the antenna position information.

9. A communication device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the stall finding method of any of claims 1 to 3 when the computer program is executed by the processor.

10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which, when executed by a processor, implements the parking space finding method of any one of claims 1 to 3.