CN114651294A - Parking lot guiding method - Google Patents
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Abstract
A parking lot guiding method, which searches a micro base station (10) in a parking lot by using a mobile terminal (30), connects with the micro base station (10) when the micro base station (10) is searched, and transmits a moving signal to two or more micro base stations (10) connected with the micro base station (10) (S1); each micro base station (10) generates a corresponding micro base station (10) signal after receiving a mobile signal sent by the mobile terminal (30) and uploads the micro base station (10) signal to an edge calculation server (40) of a parking area (S2); the edge calculation server (40) generates the position of a vehicle where the mobile terminal (30) is located according to a preset positioning algorithm and micro base station (10) signals uploaded by each micro base station (10), sends the position of the vehicle and the position of a vacant parking space in a parking lot obtained in advance to the mobile terminal (30), the mobile terminal (30) selects one of the vacant parking spaces, and the edge calculation server (40) generates a guide path to be sent to the mobile terminal (30) to guide the vehicle (20) to be parked to enter the selected vacant parking space (S3). The method can realize high-precision vehicle positioning of the parking lot and is convenient for parking guidance of the vehicle.
Description
The invention belongs to the field of parking lot management, and particularly relates to a parking lot guiding method.
In recent years, socio-economic development has been rapidly progressing, the quantity of urban vehicle maintenance has been continuously and rapidly increasing, and the problem of parking is common in large and medium cities and has a tendency to become more and more severe. In this kind of large-scale parking area, the user often faces to look for the vacant parking stall difficultly, looks for the parking stall and parks the waste time to face again when the user returns to look for the car and consume energy and time, reduce user experience.
When the existing parking lot guiding method adopting a Global Positioning System (GPS) positioning mode is applied to an indoor parking lot, a terminal arranged in a vehicle is difficult to receive signals of a navigation satellite due to signal shielding, so that the vehicle positioning is invalid. The parking lot guidance method using the narrow-band wireless communication positioning technology represented by Radio Frequency Identification (RFID) and ZIGbee (ZIGbee) requires a vehicle-mounted terminal such as an electronic tag to be mounted on a vehicle, which is troublesome to operate.
And current parking bootstrap system has the vacancy and updates untimely, perhaps the parking stall of user's selection, just has other users to park, extravagant user time to parking bootstrap system sends the state information in parking stall for the high in the clouds server in real time, along with the increase in parking stall, the high in the clouds server need save and handle a large amount of data, causes network transmission delay easily.
At present, mobile operators are greatly promoting 5G construction, and a 5G network is used as a fifth generation mobile communication network, has the characteristics of high speed, low time delay and massive connection, and can completely support the development requirement of the internet of things, wherein a large-scale 5G information technology base station application enables related equipment of the internet of things to form an antenna array on the periphery, so that the coverage area of the information technology of the internet of things is enlarged, the high-speed characteristic of the 5G network can meet the monitoring of videos and the high-speed transmission of video data, powerful support is provided for the acquisition and transmission of massive data, especially the 5G mobile communication network integrating edge calculation improves the calculation and storage capacity of the edge network, the transmission and update delay of a parking system can be reduced, the end-to-end time delay of mobile service delivery is reduced, and the requirements of high return bandwidth and low time delay brought by video transmission can be met.
The invention aims to provide a parking lot guiding method, which can realize high-precision vehicle positioning of a parking lot and is convenient for guiding parking of a vehicle.
In order to achieve the above object, the present invention provides a parking lot guidance method, including the steps of:
step S1, the parking lot comprises a plurality of layers of parking areas, each layer of parking area is correspondingly provided with an edge calculation server and a plurality of micro base stations connected with the edge calculation server; a mobile terminal is arranged in the vehicle to be parked;
searching a plurality of micro base stations in a parking area through a mobile terminal, and when the mobile terminal searches the micro base stations, connecting the mobile terminal with the micro base stations and sending mobile signals to two or more micro base stations connected with the mobile terminal;
step S2, each micro base station generates a corresponding micro base station signal after receiving the mobile signal sent by the mobile terminal and uploads the micro base station signal to an edge calculation server of the parking area where the micro base station is located;
and step S3, the edge calculation server generates the position of the vehicle to be parked in the parking lot where the mobile terminal is located according to a preset positioning algorithm and the micro base station signals uploaded by the micro base stations, sends the position of the vehicle to be parked and the position of the spare parking space in the parking lot obtained in advance to the mobile terminal, the mobile terminal selects one of the spare parking spaces, and the edge calculation server generates a guide path according to the position of the vehicle to be parked and the position of the selected spare parking space and sends the guide path to the mobile terminal to guide the vehicle to be parked to drive into the selected spare parking space.
The parking lot guiding method of the invention utilizes a mobile terminal to search micro base stations in a parking lot, the micro base stations are connected with the micro base stations when the micro base stations are searched, and mobile signals are sent to two or more micro base stations connected with the micro base stations, each micro base station generates corresponding micro base station signals after receiving the mobile signals sent by the mobile terminal and uploads the micro base station signals to an edge calculation server of the parking lot, the edge calculation server generates the position of a vehicle where the mobile terminal is located according to a preset positioning algorithm and the micro base station signals uploaded by each micro base station, and sends the position of the vehicle and the position of a spare parking space in the parking lot obtained in advance to the mobile terminal, the mobile terminal selects one of the spare parking spaces, the edge calculation server generates a guiding path according to the position of the vehicle to be parked and the position of the spare parking space selected and sends the guiding path to the mobile terminal, and the vehicle to be parked is guided to enter the selected vacant parking space, so that the high-precision vehicle positioning of the parking lot can be realized, and the parking guidance of the vehicle is facilitated.
For a better understanding of the nature and technical aspects of the present invention, reference should be made to the following detailed description of the invention, taken in conjunction with the accompanying drawings, which are provided for purposes of illustration and description and are not intended to limit the invention.
In the drawings, there is shown in the drawings,
fig. 1 is a flowchart of a parking lot guidance method of the present invention;
fig. 2 is a schematic diagram illustrating a mobile terminal and a micro base station in a parking lot guidance method according to the present invention;
fig. 3 is a schematic diagram illustrating connection between a vehicle detection device in a parking lot and an edge calculation server in the parking lot guidance method according to the present invention.
To further illustrate the technical means and effects of the present invention, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
The invention provides a parking lot guiding method based on edge computing internet of things based on the characteristics of flexible deployment of a 5G micro base station and massive and low time delay of a 5G network, and please refer to fig. 1 to 2, and the method comprises the following steps:
step S1, the driver of the vehicle 20 to be parked driving into the parking lot generally carries the mobile terminal 30, that is, the mobile terminal 30 is arranged in the vehicle 20 to be parked, the parking lot includes multiple parking areas, each parking area is correspondingly provided with one edge computing server 40 and a plurality of spaced micro base stations 10 capable of realizing 5G network connection and connected with the edge computing server 40;
when the mobile terminal 30 searches for a plurality of micro base stations 10 in a parking area, the mobile terminal 30 connects to the micro base stations 10 and transmits a moving signal to two or more micro base stations 10 connected thereto when the mobile terminal 30 searches for the micro base stations 10.
In step S2, after receiving the moving signal sent by the mobile terminal 30, each micro base station 10 generates a corresponding micro base station signal and uploads the micro base station signal to the edge calculation server 40 in the parking area.
Step S3, the edge calculation server 40 generates a position of the vehicle 20 to be parked in the parking lot where the mobile terminal 30 is located according to a preset positioning algorithm and the micro base station signals uploaded by each micro base station 10, and sends the position of the vehicle 20 to be parked and the position of the vacant parking space in the parking lot obtained in advance to the mobile terminal 30, the mobile terminal 30 selects one of the vacant parking spaces, and the edge calculation server 40 generates a guidance route according to the position of the vehicle 20 to be parked and the position of the selected vacant parking space and sends the guidance route to the mobile terminal 30, so as to guide the vehicle 20 to be parked to enter the selected vacant parking space.
After the mobile terminal 30 selects one of the vacant parking spaces, the edge calculation server 40 immediately updates the state of the selected vacant parking space to the occupied parking space.
In the process that the vehicle 20 to be parked travels to the selected vacant parking space according to the guiding path, if the vacant parking space is encountered midway, the vehicle can be directly parked in the vacant parking space, and meanwhile, the mobile terminal 30 informs the edge calculation server 40, and the edge calculation server 40 immediately updates the state of the previously selected vacant parking space to the vacant parking space.
Specifically, edge computing refers to an open platform integrating network, computing, storage, and application core capabilities at a network edge side close to a data source, and provides a nearest service for a service object nearby. One of the important differences between edge computing and cloud computing is that: the edge computing adopts a distributed computing architecture, data are dispersed in near-end equipment close to a data source for processing, not all data are transmitted back to a cloud for processing, the characteristics of instantaneity, high efficiency, short delay and the like are achieved, and the edge computing can provide computing power for a service object under the condition that no network or poor network exists.
Specifically, the edge calculation server 40 generates the guidance route according to the route in which the distance from the position of the vehicle 20 to be parked to the position of the selected vacant parking space is shortest and/or the route in which the traveling vehicle is least.
Further, in step S3, when the edge calculation server 40 detects that the vehicle 20 to be parked does not travel along the guidance route, it sends information to remind that the travel route of the vehicle 20 to be parked deviates from the guidance route to the mobile terminal 30, and when the edge calculation server 40 detects that the vehicle 20 to be parked does not travel along the guidance route, the edge calculation server 40 regenerates the guidance route again according to the location of the vehicle 20 to be parked and the location of the selected vacant parking space within a preset response time.
Specifically, in step S1, the mobile terminal 30 sends a parking request signal to the edge calculation server 40 in the parking area, and in step S3, the edge calculation server 40 locates the mobile terminal 30 after receiving the parking request signal.
Further, the mobile terminal 30 may be a smart phone or a tablet computer, and after the parking vehicle 20 enters the parking lot, a parking request signal may be sent to the edge computing server 40 in the parking area through a parking application program or a 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 calculation server 40 generating the position of the vehicle to be parked 20 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 as follows: the edge calculation server 40 obtains an incident angle of the mobile terminal 30 to transmit the mobile signal to each micro base station 10 that has uploaded the micro base station signal according to the micro base station signal uploaded by each micro base station 10, and obtains a position of the vehicle 20 to be parked according to the incident angle of the mobile terminal 30 to transmit the mobile signal to each micro base station 10 that has uploaded the micro base station signal and the position of each micro base station 10 that has uploaded the micro base station signal.
Specifically, each parking space in each layer of parking area of the parking lot is provided with a camera device connected with the edge calculation server 40 of the parking area in which the camera device is located through a 5G network, the camera device is used for collecting the license plate number of the vehicle parked on the parking space and transmitting the license plate number and the parking space number of the parking space to the edge calculation server 40, and the edge calculation server 40 is used for identifying the license plate number of the vehicle parked on the parking space so as to judge whether the vehicle 20 to be parked enters the selected vacant parking space or not, and meanwhile, the license plate number of the vehicle parked on the parking space and the parking space number of the parking space can be stored. Further, the edge calculation server 40 may acquire the path along which the traveling vehicle is the least between the position of the vehicle to be parked 20 and the position of the selected vacant parking space through a plurality of camera devices. The shooting visual fields of all the camera devices can be overlapped, so that the parking lot can be shot at multiple angles, and the information of the surrounding environment of the parking space can be accurately acquired.
Further, when the vehicle owner needs to search for the vehicle, the license plate number can be input through a WeChat applet or a parking application program in the mobile terminal 30, a vehicle searching request is sent to the edge computing server 40, the edge computing server 40 responds to the vehicle searching request, searches for a corresponding parking space number according to the license plate number, transmits the parking space number to the mobile terminal 30, and generates a vehicle searching path according to the parking space number and the position of the mobile terminal 30 to guide the vehicle owner to search for the vehicle.
Further, in step S3, after the mobile terminal 30 selects the vacant parking space, it may send a request for checking the surrounding situation of the selected vacant parking space to the edge calculation server 40, and the edge calculation server 40 controls the camera device on the selected vacant parking space to shoot surrounding scenes to generate video data, and transmits the video data to the mobile terminal 20, so that the vehicle owner can check the surrounding situation of the selected vacant parking space through the mobile terminal 20.
Specifically, when the vehicle owner needs to drive away from the parking lot, a driving-away parking lot signal can be sent to the edge calculation server 40 of the parking area through a WeChat applet or a parking application program in the mobile terminal 30, the edge calculation server 40 positions the mobile terminal 30 after receiving the driving-away parking lot signal, a driving-away path is generated according to the position of the vehicle 20 to be parked and the position of an exit of the parking lot, and the vehicle 20 to be parked is guided to drive away from the parking lot.
Further, the edge calculation server 40 generates the departure path in accordance with the path in which the distance from the position of the vehicle to be parked 20 to the position of the parking lot exit is the shortest and/or the path in which the traveling vehicle is the least.
Further, when the edge calculation server 40 detects that the vehicle 20 to be parked does not travel along the departure path, information for reminding that the travel path of the vehicle 20 to be parked deviates from the departure path is sent to the mobile terminal 30, and when the edge calculation server 40 detects that the vehicle 20 to be parked does not travel along the departure path, the edge calculation server 40 regenerates the departure path again according to the position of the vehicle 20 to be parked and the position of the exit of the parking lot within a preset response time.
Specifically, referring to fig. 3, each parking space in each floor of the parking lot is provided with a vehicle detection device 50, and for the parking spaces in the whole row, each vehicle detection device 50 may also correspond to a plurality of parking spaces at the same time; each vehicle detection device 50 is connected to the edge calculation server 40 of the parking area, the vehicle detection device 50 and the edge calculation server 40 may also be connected by using a 5G network, when a vehicle is parked in a parking space, the vehicle detection device 50 corresponding to the parking space sends an occupancy signal corresponding to the parking space to the edge calculation server 40, and the edge calculation server 40 takes the parking spaces in the parking lot other than the parking space corresponding to the occupancy signal as vacant parking spaces according to the received occupancy signal, thereby obtaining the positions of the vacant parking spaces in the parking lot.
The edge calculation server 40 transmits 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 transmits the position of the parking space corresponding to the occupancy signal in the parking lot to the mobile terminal 30 to indicate the occupied parking space in the mobile terminal 30.
Further, when the vehicle exits the parking space, the vehicle detection device 50 corresponding to the parking space sends a parking space release signal corresponding to the parking space to the edge calculation server 40, and the edge calculation server 40 updates the parking space to an empty parking space according to the received release signal, that is, each edge calculation server 40 of the present invention updates the state of the parking space in the parking lot in real time according to the occupation or release signal sent by the vehicle detection device 50.
Specifically, the edge calculation server 40 periodically transmits the parking space state information of the parking lot to the cloud server, so that the cloud server can analyze the parking space state of the whole area.
Specifically, the mobile terminal 20 is a smart phone with a 5G communication function. The edge calculation server 40 and the corresponding micro base stations 10, and the edge calculation server 40 and the mobile terminal 20 are connected through a 5G network.
Specifically, the micro base stations 10 are connected by a wired connection or a wireless connection, 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 having a large-scale array antenna (MIMO).
Because the parking lot guiding method is based on the edge computing Internet of things technology of the 5G network, the edge computing technology is fused with the 5G network, the vehicle to be parked is accurately positioned and guided through the mobile terminal in the vehicle to be parked, the surrounding situation of the parking place selected by the user can be checked through the camera device by utilizing the mobile terminal, the difficulty of parking or searching the vehicle for the user due to traffic jam near the selected parking place is prevented, the user experience is improved, the storage capacity stored in the cloud is reduced by utilizing the edge computing technology, the time delay of parking place updating and video transmission is reduced, the high-speed and low-time delay characteristics of the 5G network are combined, the positioning accuracy of the mobile vehicle and the speed of guiding path planning are improved, the user experience is improved, the positioning and guiding of the vehicle to be parked can be realized only by utilizing the mobile terminal held by the driver, and the navigation is carried out by the vehicle-mounted terminal in comparison with the prior art, the cost is saved, and the operation is more convenient.
In summary, the parking lot guiding method of the present invention utilizes a mobile terminal to search micro base stations in a parking lot, connects with the micro base stations when searching the micro base stations, and sends mobile signals to two or more micro base stations connected with the micro base stations, each micro base station generates corresponding micro base station signals after receiving the mobile signals sent by the mobile terminal and uploads the micro base station signals to an edge computing server of the parking lot where the micro base station is located, the edge computing server generates a position of a vehicle where the mobile terminal is located according to a preset positioning algorithm and the micro base station signals uploaded by each micro base station, and sends the position of the vehicle and a position of a vacant parking space in the parking lot obtained in advance to the mobile terminal, the mobile terminal selects one of the vacant parking spaces, the edge computing server generates a guiding path according to the position of the vehicle to be parked and the position of the vacant parking space selected and sends the guiding path to the mobile terminal, and the vehicle to be parked is guided to enter the selected vacant parking space, so that the high-precision vehicle positioning of the parking lot can be realized, and the parking guidance of the vehicle is facilitated.
As described above, it will be apparent to those skilled in the art that various other changes and modifications can be made based on the technical solution and the technical idea of the present invention, and all such changes and modifications should fall within the protective scope of the appended claims.
Claims (10)
- A parking lot guidance method, comprising the steps of:step S1, the parking lot comprises a plurality of layers of parking areas, each layer of parking area is correspondingly provided with an edge calculation server and a plurality of micro base stations connected with the edge calculation server; a mobile terminal is arranged in the vehicle to be parked;searching a plurality of micro base stations in a parking area through a mobile terminal, and when the mobile terminal searches the micro base stations, connecting the mobile terminal with the micro base stations and sending mobile signals to two or more micro base stations connected with the mobile terminal;step S2, each micro base station generates a corresponding micro base station signal after receiving the mobile signal sent by the mobile terminal and uploads the micro base station signal to an edge calculation server of the parking area where the micro base station is located;and step S3, the edge calculation server generates the position of the vehicle to be parked in the parking lot where the mobile terminal is located according to a preset positioning algorithm and the micro base station signals uploaded by the micro base stations, sends the position of the vehicle to be parked and the position of the spare parking space in the parking lot obtained in advance to the mobile terminal, the mobile terminal selects one of the spare parking spaces, and the edge calculation server generates a guide path according to the position of the vehicle to be parked and the position of the selected spare parking space and sends the guide path to the mobile terminal to guide the vehicle to be parked to drive into the selected spare parking space.
- The parking lot guidance method according to claim 1, wherein the edge calculation server generates the guidance route in accordance with a route in which a distance from a position of the vehicle to be parked to a position of the selected vacant parking space is shortest and/or a route in which the vehicle travels least.
- The parking lot guidance method according to claim 1, wherein in step S3, when the edge calculation server detects that the vehicle to be parked does not travel along the guidance route, the edge calculation server sends information to the mobile terminal to remind that the travel route of the vehicle to be parked has deviated from the guidance route, and when the edge calculation server detects that the vehicle to be parked does not travel along the guidance route within a preset response time, the edge calculation server regenerates the guidance route again according to the location of the vehicle to be parked and the location of the selected vacant parking space.
- The parking lot guidance method according to claim 1, wherein the preset location algorithm is one or more of an azimuth location algorithm, a signal arrival time location algorithm, a frequency difference passive location algorithm, and a received signal strength location algorithm.
- The method according to claim 4, wherein when the predetermined location algorithm is an azimuth location algorithm, the edge computing server obtains an incident angle of the mobile terminal transmitting the mobile signal to each micro base station that has uploaded the micro base station signal according to the micro base station signal uploaded by each micro base station, and obtains the position of the vehicle to be parked according to the incident angle of the mobile terminal transmitting the mobile signal to each micro base station that has uploaded the micro base station signal and the position of each micro base station that has uploaded the micro base station signal.
- The parking lot guidance method according to claim 1, wherein each parking space in each floor parking area of the parking lot is provided with a camera connected to an edge calculation server of the parking area, the camera is configured to collect a license plate number of a vehicle parked in the parking space and transmit the license plate number and the space number of the parking space to the edge calculation server, and the edge calculation server is configured to identify the license plate number of the vehicle parked in the parking space to determine whether the vehicle to be parked has driven into the selected vacant parking space.
- The method for guiding a parking lot as claimed in claim 6, wherein in step S3, after the mobile terminal selects the vacant parking space, the mobile terminal can send a request for checking the situation around the selected vacant parking space to the edge calculation server, and the edge calculation server controls the camera device on the selected vacant parking space to capture the surrounding scene 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 floor of the parking lot is provided with a corresponding vehicle detection device, each vehicle detection device is connected with the edge calculation server of the parking area, when a vehicle is parked 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 calculation server, and the edge calculation server takes the parking space in the parking lot except the parking space corresponding to the occupancy signal as an empty parking space according to the received occupancy signal, so as to obtain the position of the empty parking space in the parking lot;the edge calculation server sends the position of the vehicle to be parked and the position of the vacant parking space in the parking lot to the mobile terminal, and simultaneously sends the position of the parking space corresponding to the occupancy signal in the parking lot to the mobile terminal.
- The method according to claim 8, wherein when the vehicle exits the parking space, the vehicle detecting device corresponding to the parking space sends a parking space releasing signal corresponding to the parking space to the edge computing server, and the edge computing server updates the parking space to an empty parking space according to the received releasing signal.
- The parking lot guidance method according to claim 1, wherein the mobile terminal is a smartphone having a 5G communication function; the edge computing server is connected with the corresponding micro base stations and the edge computing server is connected with the mobile terminal through a 5G network;the micro base stations are connected in a wired or wireless mode, the wired connection is a network cable or 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.
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| CN114155719A (en) * | 2021-11-29 | 2022-03-08 | 延锋伟世通电子科技（南京）有限公司 | Digital twin vehicle parking device based on machine vision and use method |
| US11776404B2 (en) | 2022-02-07 | 2023-10-03 | International Business Machines Corporation | Ad-hoc network optimization by parking allocation |
| CN115100898B (en) * | 2022-05-31 | 2023-09-12 | 东南大学 | Collaborative computing task unloading method of urban intelligent parking management system |
| CN115424468A (en) * | 2022-06-01 | 2022-12-02 | 星即科技(上海)有限公司 | Parking stall detecting system based on many cameras fuse |
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