WO2021114261A1

WO2021114261A1 - Parking lot guidance method

Info

Publication number: WO2021114261A1
Application number: PCT/CN2019/125294
Authority: WO
Inventors: 邱海燕
Original assignee: 邱海燕
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2021-06-17
Also published as: CN114651294A

Abstract

A parking lot guidance method, comprising: use a mobile terminal (30) to search micro base stations (10) in a parking lot, connect to the micro base stations (10) when the micro base stations (10) are found, and send a mobile signal to two or more micro base stations (10) connected thereto (S1); each micro base station (10) generates a corresponding micro base station (10) signal after receiving the mobile signal sent by the mobile terminal (30), and uploads same to an edge computing server (40) in a parking area (S2); the edge computing server (40) generates the position of a vehicle where the mobile terminal (30) is located according to a preset positioning algorithm and the micro base station (10) signal uploaded by each micro base station (10), and sends the position of the vehicle and pre-obtained positions of free parking spaces in the parking lot to the mobile terminal (30), the mobile terminal (30) selects one of the free parking spaces, and the edge computing server (40) generates and sends a guidance path to the mobile terminal (30) to guide a vehicle to be parked (20) to the selected free parking space (S3). The method can realize high-precision vehicle positioning in the parking lot, to guide parking of vehicles.

Description

Parking lot guidance method

Technical field

The invention belongs to the field of parking lot management, and in particular relates to a parking lot guidance method.

Background technique

In recent years, the social economy has developed rapidly, and the number of urban vehicles has continued to grow rapidly. Parking problems have become common in large and medium-sized cities, and they have become more and more intense. In this kind of large parking lot, users often face difficulty in finding empty parking spaces, waste time finding parking spaces, and when the user returns to find a car, it also consumes energy and time to find a car, which reduces user experience.

The existing parking lot guidance method using the global positioning system (GPS) positioning method, when applied to an indoor parking lot, due to signal shielding, it is difficult for the terminal installed in the car to receive the signal of the navigation satellite, resulting in the failure of vehicle positioning. The parking lot guidance method using narrow-band wireless communication positioning technology represented by radio frequency identification (RFID) and ZIGbee technology requires the installation of on-board terminals such as electronic tags on the vehicle, which is troublesome to operate.

In addition, the existing parking guidance system has the untimely update of the vacancy, or the parking space selected by the user, and there are other users who are parking, which wastes the user’s time, and the parking guidance system sends the status information of the parking space to the cloud server in real time. With the increase of parking spaces, cloud servers need to store and process large amounts of data, which easily causes network transmission delays.

At present, mobile operators are vigorously advancing the construction of 5G. As a fifth-generation mobile communication network, 5G network has the characteristics of high speed, low latency, and massive connections, which can fully support the development needs of the Internet of Things. Among them, large-scale 5G information technology base station applications This enables IoT-related equipment to be surrounded by antenna arrays, which expands the coverage area of IoT information technology. The high-speed characteristics of 5G networks can meet the needs of video surveillance and high-speed transmission of video data, providing strong support for the collection and transmission of massive data. In particular, the 5G mobile communication network that integrates edge computing improves the computing and storage capabilities of the edge network, can reduce the transmission and update delay of the parking system, reduce the end-to-end delay of mobile service delivery, and can meet the high return of video transmission. Bandwidth and low latency requirements.

technical problem

The object of the present invention is to provide a parking lot guidance method, which can realize high-precision vehicle positioning in the parking lot and facilitate parking guidance for vehicles.

Technical solutions

In order to achieve the above objective, the present invention provides a parking lot guidance method, which includes the following steps:

Step S1: The parking lot includes a multi-level parking area, and each parking area is provided with an edge computing server and a plurality of micro base stations connected to the edge computing server; there are mobile terminals in the vehicles to be parked;

The mobile terminal searches for multiple micro base stations in the parking area. When the mobile terminal finds the micro base station, the mobile terminal connects to the micro base station and sends mobile signals to two or more micro base stations connected to it;

Step S2: After receiving the mobile signal sent by the mobile terminal, each micro base station generates a corresponding micro base station signal and uploads it to the edge computing server in the parking area;

Step S3: The edge computing server generates the position of the vehicle to be parked in the parking lot where the mobile terminal is located according to the preset positioning algorithm and the micro base station signals uploaded by each micro base station, and calculates the position of the vehicle to be parked and the previously obtained position of the vehicle to be parked. The position of the vacant parking space in the parking lot is sent to the mobile terminal, the mobile terminal selects one of the vacant parking spaces, and the edge computing server generates a guide path according to the position of the vehicle to be parked and the position of the selected vacant parking space and sends it to the mobile terminal, Guide the vehicle to be parked into the vacant parking space that has been selected.

Beneficial effect

The parking lot guidance method of the present invention uses a mobile terminal to search for micro base stations in the parking lot, connects to the micro base station when the micro base station is found, and sends mobile signals to two or more micro base stations connected to it After each micro base station receives the mobile signal sent by the mobile terminal, it generates a corresponding micro base station signal and uploads it to the edge computing server in the parking area. The edge computing server uses the preset positioning algorithm and the micro base station signals uploaded by each micro base station. Generate the position of the vehicle where the mobile terminal is located, and send the position of the vehicle and the position of the vacant parking space in the parking lot obtained in advance to the mobile terminal. The mobile terminal selects one of the vacant parking spaces, and the edge computing server is based on the parking space of the vehicle to be parked. The location and the location of the selected vacant parking space generate a guidance path and send it to the mobile terminal to guide the vehicle to be parked into the selected vacant parking space, which can achieve high-precision vehicle positioning in the parking lot and facilitate parking guidance for the vehicle.

Description of the drawings

In order to further understand the features and technical content of the present invention, please refer to the following detailed description and accompanying drawings of the present invention. However, the accompanying drawings are only provided for reference and illustration, and are not used to limit the present invention.

In the attached picture,

Figure 1 is a flowchart of the parking lot guidance method of the present invention;

FIG. 2 is a schematic diagram of the mobile terminal connecting with the micro base station in the parking lot guidance method of the present invention;

3 is a schematic diagram of the connection between the vehicle detection device in the parking lot and the edge computing server in the parking lot guidance method of the present invention.

Embodiments of the present invention

In order to further illustrate the technical means adopted by the present invention and its effects, the following describes in detail the preferred embodiments of the present invention and the accompanying drawings.

Based on the flexible deployment of 5G micro base stations and the characteristics of 5G network mass and low latency, the present invention proposes a parking lot guidance method based on edge computing Internet of Things. Please refer to Figures 1 to 2, including the following steps:

Step S1. The driver of the to-be-parked vehicle 20 entering the parking lot generally carries a mobile terminal 30, that is, a mobile terminal 30 is provided in the to-be-parked vehicle 20. The parking lot includes multi-level parking areas, and each level of parking area is correspondingly set An edge computing server 40 and a plurality of micro base stations 10 connected to the edge computing server 40 and capable of realizing 5G network connection;

The mobile terminal 30 searches multiple micro base stations 10 in the parking area. When the mobile terminal 30 finds the micro base station 10, the mobile terminal 30 connects to the micro base station 10 and sends mobile signals to the two or two connected to it. More than one micro base station 10.

Step S2, after each micro base station 10 receives the mobile signal sent by the mobile terminal 30, generates a corresponding micro base station signal and uploads it to the edge computing server 40 in the parking area.

Step S3: The edge computing server 40 generates the position of the vehicle 20 to be parked in the parking lot where the mobile terminal 30 is located according to the preset positioning algorithm and the micro base station signals uploaded by each micro base station 10, and compares the position of the vehicle 20 to be parked. The position and the position of the free parking space in the parking lot obtained in advance are sent to the mobile terminal 30. The mobile terminal 30 selects one of the free parking spaces, and the edge computing server 40 is based on the position of the vehicle to be parked 20 and the selected free parking space. The location generated guidance path is sent to the mobile terminal 30 to guide the to-be-parked vehicle 20 to enter the selected vacant parking space.

After the mobile terminal 30 selects one of the vacant parking spaces, the edge computing server 40 immediately updates the status of the selected vacant parking space to an occupied parking space.

When the vehicle 20 to be parked follows the guide path to the selected vacant parking space, if there is a vacant parking space on the way, it can stop at the vacant parking space directly, and at the same time inform the edge computing server 40 through the mobile terminal 30, the edge computing server 40. The status of the previously selected vacant parking space is immediately updated to the vacant parking space.

Specifically, edge computing refers to the use of an open platform integrating network, computing, storage, and application core capabilities on the edge of the network close to the data source to provide the nearest service to the service object. One of the important differences between edge computing and cloud computing is that edge computing uses a distributed computing architecture to disperse data in near-end devices close to the data source for processing, instead of sending all data back to the cloud for processing, which is real-time and efficient. High, short delay and other characteristics, and edge computing can also provide computing power for service objects in the absence of network or poor network.

Specifically, the edge computing server 40 generates the guide path according to the path with the shortest distance between the position of the vehicle 20 to be parked and the position of the selected vacant parking space and/or the path with the least number of vehicles traveling.

Further, in the step S3, when the edge computing server 40 detects that the vehicle 20 to be parked does not follow the guide path, it sends information to the mobile terminal 30 to remind the travel path of the vehicle to be parked 20 has deviated from the guide path. Set the response time, when the edge computing server 40 detects that the to-be-parked vehicle 20 has not followed the guidance path, the edge computing server 40 regenerates the guidance according to the location of the to-be-parked vehicle 20 and the location of the selected free parking space. path.

Specifically, in the step S1, the mobile terminal 30 also sends a parking request signal to the edge computing server 40 in the parking area where it is located. In the step S3, the edge computing server 40 only locates the mobile terminal 30 after receiving the parking request signal.

Further, the mobile terminal 30 may be a device such as a smart phone or a tablet computer. After the vehicle 20 to be parked enters the parking lot, it may send a parking request signal to the edge computing server 40 in the parking area through a parking application or WeChat applet.

Specifically, the preset positioning algorithm is one or more of an azimuth positioning algorithm, a signal arrival time positioning algorithm, a frequency difference passive positioning algorithm, and a received signal strength positioning algorithm. The present invention is preferably an azimuth positioning algorithm.

Further, the specific process of the edge computing server 40 generating the position of the vehicle 20 to be parked where the mobile terminal 30 is located according to the azimuth positioning algorithm and the micro base station signals uploaded by each micro base station 10 is: The micro base station signal uploaded by the micro base station 10 acquires the incident angle of the mobile terminal 30 entering the mobile signal to each micro base station 10 that has uploaded the micro base station signal, and the mobile terminal 30 transmits the mobile signal to each micro base station 10 that has uploaded the micro base station signal. The incident angle of, and the position of each micro base station 10 where the micro base station signal is uploaded, to obtain the position of the vehicle 20 to be parked.

Specifically, each parking space in the parking area on each floor of the parking lot is provided with a camera device connected to the edge computing server 40 of the parking area using a 5G network, and the camera device is used to collect vehicles parked in the parking space. The license plate number of the parking space and the license plate number and the parking space number of the parking space are transmitted to the edge computing server 40. The edge computing server 40 is used to identify the license plate number of the vehicle parked in the parking space to determine whether the vehicle 20 to be parked has entered The selected vacant parking space can also store the license plate number of the vehicle parked in the parking space and the parking space number of the parking space. In addition, the edge computing server 40 may obtain the path with the least number of vehicles traveling between the position of the vehicle 20 to be parked and the position of the selected vacant parking space through a plurality of camera devices. The shooting field of view of each camera device can be overlapped, so that the parking lot can be photographed from multiple angles, so that the information of the surrounding environment of the parking space can be accurately obtained.

Further, when a car owner needs to find a car, he can input the license plate number through the WeChat applet or parking application in the mobile terminal 30, and send a car search request to the edge computing server 40. The edge computing server 40 responds to the car search request according to the license plate number. After the number is found, the corresponding parking number is transmitted to the mobile terminal 30, and a car search path is generated according to the parking number and the location of the mobile terminal 30 to guide the vehicle owner to find the vehicle.

Further, in the step S3, after the mobile terminal 30 selects a free parking space, it can send a request to the edge computing server 40 to view the surrounding conditions of the selected free parking space, and the edge computing server 40 controls the selected free parking space The camera device on the camera captures surrounding scenes to generate video data, and transmits the video data to the mobile terminal 20, so that the vehicle owner can view the surrounding conditions of the selected vacant parking space through the mobile terminal 20.

Specifically, when the car owner needs to leave the parking lot, the WeChat applet or parking application in the mobile terminal 30 can send a leaving parking lot signal to the edge computing server 40 in the parking area where the edge computing server 40 receives the leaving. After the parking lot signal, the mobile terminal 30 is positioned, and a departure path is generated according to the location of the vehicle 20 to be parked and the location of the exit of the parking lot and sent to the mobile terminal 30 to guide the vehicle 20 to be parked to leave the parking lot.

Further, the edge computing server 40 generates the departure path according to the path with the shortest distance between the position of the vehicle 20 to be parked and the position of the exit of the parking lot and/or the path with the least number of vehicles traveling.

Further, when the edge computing server 40 detects that the to-be-parked vehicle 20 does not follow the departure path, it sends to the mobile terminal 30 a message reminding the to-be-parked vehicle 20 that the driving path has deviated from the departure path, at a preset response time Inside, when the edge computing server 40 detects that the to-be-parked vehicle 20 has not yet followed the departure path, the edge computing server 40 regenerates the departure path according to the location of the to-be-parked vehicle 20 and the location of the exit of the parking lot.

Specifically, referring to FIG. 3, each parking space in the parking area of each floor of the parking lot is provided with a vehicle detection device 50. For the entire row of parking spaces, each vehicle detection device 50 can also correspond to several parking spaces at the same time. Each vehicle detection device 50 is connected to the edge computing server 40 in the parking area. The vehicle detection device 50 and the edge computing server 40 can also be connected by a 5G network. When a vehicle parks in a parking space, the parking The vehicle detection device 50 corresponding to the parking space sends an occupancy signal corresponding to the parking space to the edge computing server 40, and the edge computing server 40 uses the received occupancy signal as vacant parking spaces in the parking lot except for the parking space corresponding to the occupancy signal. Parking spaces, so as to obtain the positions of vacant parking spaces in the parking lot.

The edge computing server 40 sends the position of the vehicle 20 to be parked and the position of the vacant parking space in the parking lot to the mobile terminal 30, and also sends the position of the parking space in the parking lot corresponding to the occupancy signal to the mobile terminal 30 to The occupied parking space is marked in the mobile terminal 30.

Further, when the vehicle drives out of the parking space, the vehicle detection device 50 corresponding to the parking space sends the parking space release signal corresponding to the parking space to the edge computing server 40, and the edge computing server 40 stops the parking space according to the received release signal. The space is updated as a vacant parking space, that is, each edge computing server 40 of the present invention updates the status of the parking space in the parking lot in real time according to the occupancy or cancellation signal sent by the vehicle detection device 50.

Specifically, the edge computing server 40 periodically transmits the parking space status information of the parking lot to the cloud server, so that the cloud server can analyze the parking space status of the entire area.

Specifically, the mobile terminal 20 is a smart phone with a 5G communication function. The edge computing server 40 and the corresponding multiple micro base stations 10, and the edge computing server 40 and the mobile terminal 20 are connected through a 5G network.

Specifically, a wired or wireless connection is adopted between the plurality of micro base stations 10, the wired connection is a network cable or an optical fiber connection, and the wireless connection is a 5G network connection.

Specifically, the micro base station 10 is a micro base station with a large-scale array antenna (MIMO).

Since the parking lot guidance method of the present application is based on the edge computing Internet of Things technology of the 5G network, the edge computing technology is integrated with the 5G network, and the mobile terminal in the vehicle to be parked is used to accurately locate and guide the vehicle to be parked, and the mobile terminal can be used to camera The device checks the surroundings of the parking space selected by the user to prevent traffic jams near the selected parking space from causing difficulties for users to park or find a car, improve user experience, and reduce the storage capacity of cloud storage due to edge computing technology, reduce parking space updates and videos The transmission delay, combined with the high-speed and low-latency characteristics of the 5G network, improves the accuracy of mobile vehicle positioning and the speed of guidance path planning, improves the user experience, and only needs to use the mobile terminal held by the driver to achieve treatment. The positioning and guidance of parked vehicles is more cost-effective and more convenient than the existing vehicle-mounted terminal that needs to be installed on the vehicle for navigation.

In summary, the parking lot guidance method of the present invention uses a mobile terminal to search for the micro base station in the parking lot, connects to the micro base station when the micro base station is found, and sends mobile signals to the two or two connected to it. There are more than one micro base station. Each micro base station generates a corresponding micro base station signal after receiving the mobile signal sent by the mobile terminal and uploads it to the edge computing server in the parking area. The edge computing server uploads it according to the preset positioning algorithm and each micro base station The micro base station signal generates the position of the vehicle where the mobile terminal is located, and sends the position of the vehicle and the position of the vacant parking space in the parking lot obtained in advance to the mobile terminal. The mobile terminal selects one of the vacant parking spaces, and the edge computing server According to the location of the vehicle to be parked and the location of the selected vacant parking space, a guide path is generated and sent to the mobile terminal to guide the vehicle to be parked into the selected vacant parking space, which can achieve high-precision vehicle positioning in the parking lot and facilitate vehicle inspection Parking guidance.

As mentioned above, for those of ordinary skill in the art, various other corresponding changes and modifications can be made according to the technical solutions and technical ideas of the present invention, and all these changes and modifications shall belong to the appended claims of the present invention. The scope of protection.

Claims

A parking lot guidance method includes the following steps:

Step S1: The parking lot includes a multi-level parking area, and each parking area is provided with an edge computing server and a plurality of micro base stations connected to the edge computing server; there are mobile terminals in the vehicles to be parked;

The mobile terminal searches for multiple micro base stations in the parking area. When the mobile terminal finds the micro base station, the mobile terminal connects to the micro base station and sends mobile signals to two or more micro base stations connected to it;

Step S2: After receiving the mobile signal sent by the mobile terminal, each micro base station generates a corresponding micro base station signal and uploads it to the edge computing server in the parking area;

Step S3: The edge computing server generates the position of the vehicle to be parked in the parking lot where the mobile terminal is located according to the preset positioning algorithm and the micro base station signals uploaded by each micro base station, and calculates the position of the vehicle to be parked and the previously obtained position of the vehicle to be parked. The position of the vacant parking space in the parking lot is sent to the mobile terminal, the mobile terminal selects one of the vacant parking spaces, and the edge computing server generates a guide path according to the position of the vehicle to be parked and the position of the selected vacant parking space and sends it to the mobile terminal, Guide the vehicle to be parked into the vacant parking space that has been selected.
The parking lot guidance method according to claim 1, wherein the edge computing server is based on the path with the shortest distance between the position of the vehicle to be parked and the position of the selected vacant parking space and/or the path with the least number of vehicles traveling. Generate a guide path.
The parking lot guidance method according to claim 1, wherein, in the step S3, when the edge computing server detects that the vehicle to be parked does not follow the guide path, it sends a reminder to the mobile terminal that the travel path of the vehicle to be parked has deviated from the guide Path information, within a preset response time, when the edge computing server detects that the to-be-parked vehicle has not followed the guide path, the edge computing server again bases on the location of the to-be-parked vehicle and the location of the selected vacant parking space Regenerate the boot path.
The parking lot guidance method of claim 1, wherein the preset positioning algorithm is one of an azimuth positioning algorithm, a signal arrival time positioning algorithm, a frequency difference passive positioning algorithm, and a received signal strength positioning algorithm. Many kinds.
The parking lot guidance method according to claim 4, wherein, when the preset positioning algorithm is an azimuth positioning algorithm, the edge computing server obtains that the mobile terminal has uploaded the micro base station to each micro base station according to the micro base station signal uploaded by each micro base station. The incident angle of the mobile signal from the micro base station of the signal, according to the incident angle of the mobile terminal to each micro base station that uploads the micro base station signal, and the location of each micro base station that uploads the micro base station signal, to obtain the information of the vehicle to be stopped. position.
The parking lot guidance method according to claim 1, wherein each parking space in the parking area on each floor of the parking lot is provided with a camera device connected to the edge computing server of the parking area where it is located, and the camera device is used to collect parking The license plate number of the vehicle in the parking space, and the license plate number and the parking space number of the parking space are transmitted to the edge computing server, which is used to identify the license plate number of the vehicle parked in the parking space to determine whether the vehicle to be parked has been driven Enter the selected free parking space.
The parking lot guidance method according to claim 6, wherein, in the step S3, after the mobile terminal selects an vacant parking space, it can send a request to the edge computing server to view the surrounding conditions of the selected vacant parking space, and the edge computing server controls The camera device on the selected vacant parking space captures the surrounding scenes to generate video data, and transmits the video data to the mobile terminal.
The parking lot guidance method according to claim 1, wherein each parking space in each parking area of the parking lot is provided with a vehicle detection device, and each vehicle detection device is connected to the edge computing server of the parking area where it is located. When a vehicle parks in a parking space, the vehicle detection device corresponding to the parking space sends an occupancy signal corresponding to the parking space to the edge computing server, and the edge computing server determines the parking lot in addition to the occupancy signal according to the received occupancy signal. The parking spaces other than the parking spaces are used as vacant parking spaces, so as to obtain the position of the vacant parking spaces in the parking lot;

The edge computing server sends the location of the vehicle to be parked and the location of the vacant parking space in the parking lot to the mobile terminal, and also sends the location of the parking space in the parking lot corresponding to the occupancy signal to the mobile terminal.
The parking lot guidance method according to claim 8, wherein when the vehicle drives out of the parking space, the vehicle detection device corresponding to the parking space sends the parking space release signal corresponding to the parking space to the edge computing server, and the edge computing server according to The received cancellation signal updates the parking space to a vacant parking space.
The parking lot guidance method according to claim 1, wherein the mobile terminal is a smart phone with 5G communication function; between the edge computing server and the corresponding multiple micro base stations, the edge computing server and the mobile terminal Connect via 5G network;

A wired or wireless connection is adopted between the multiple micro base stations, the wired connection is a network cable or an optical fiber connection, and the wireless connection is a 5G network connection;

The micro base station is a micro base station with a large-scale array antenna.