CN106157689B - Dynamic parking space management system for parking lot - Google Patents
Dynamic parking space management system for parking lot Download PDFInfo
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- CN106157689B CN106157689B CN201610756375.XA CN201610756375A CN106157689B CN 106157689 B CN106157689 B CN 106157689B CN 201610756375 A CN201610756375 A CN 201610756375A CN 106157689 B CN106157689 B CN 106157689B
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/14—Traffic control systems for road vehicles indicating individual free spaces in parking areas
- G08G1/141—Traffic control systems for road vehicles indicating individual free spaces in parking areas with means giving the indication of available parking spaces
- G08G1/144—Traffic control systems for road vehicles indicating individual free spaces in parking areas with means giving the indication of available parking spaces on portable or mobile units, e.g. personal digital assistant [PDA]
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/14—Traffic control systems for road vehicles indicating individual free spaces in parking areas
- G08G1/145—Traffic control systems for road vehicles indicating individual free spaces in parking areas where the indication depends on the parking areas
- G08G1/148—Management of a network of parking areas
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention relates to a dynamic parking space management system of a parking lot, which comprises: the server receives real-time information sent by the parking lot, sends information that the vehicle enters the parking lot to the parking lot, and sends available vehicle position information to the client in real time; the client receives the information sent by the server, and simultaneously receives the position of the client by matching with the positioning system, obtains proper available vehicle position information through calculation of the server, and guides the vehicle to the arranged vehicle position; and the positioning system acquires the position information of the vehicle in real time and sends the position information to the server and the client in real time so that the server can carry out screening calculation and navigation operation on the client by matching with the position information of the vehicle in real time and the information of the currently selected parking space. The invention is suitable for intelligent parking management.
Description
Technical Field
The invention relates to a system for parking management by utilizing an internet technology, in particular to a parking space management system of a parking lot.
Background
In recent years, along with popularization and popularization of the Internet+, a plurality of intelligent parking lots have own intelligent management systems, and along with development of indoor positioning, some parking lot management systems can help users to position and navigate to the parking lots by means of three-party software, but the method is often a way for randomly distributing the parking lots, and the method lacks flexibility and does not realize optimal utilization of resources.
At this time, a set of more intelligent dynamic parking space management system is needed, and a relatively nearest parking space can be preferentially selected for a user to park vehicles in the dynamic available parking spaces in real time, so that the time of the vehicle owners can be saved, parking space resources can be utilized most effectively, and the purposes of energy conservation and emission reduction are achieved.
The invention discloses an intelligent parking space management and parking guiding system in a parking lot, which comprises sensor nodes, a sensor gateway, a communication network, a central server, an information release module, an intelligent guiding module and a query module, wherein the sensor nodes acquire dynamic information of a parking space in real time and transmit the dynamic information to the sensor gateway, the sensor gateway analyzes and processes the acquired dynamic information and transmits the acquired information to the central server through the communication network, the central server is a whole data center of the system, receives and stores the acquired dynamic information, further processes various parking and vehicle taking information, establishes data channels with various electronic platforms, receives and releases the information, the central server releases the information of the parking space through the information release module, and the intelligent guiding module guides the parking space of a vehicle, and queries the parking space of the vehicle through the query module.
However: the system is only aimed at the parking space selected by the user, performs parking induction operation on the user, obtains parking space information through the sensor nodes of the user, and does not describe a specific planning method and the like in detail. The specific implementation of the mentioned sensor is not specified either, including the sensor operating principle, and sensor positioning is the most important technical difficulty in such systems.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an automatic and efficient intelligent parking space management system for a parking lot, which is used for acquiring parking space information through a sensor of a parking space, detecting the time point when a vehicle enters a parking space, searching and screening the parking space and detecting the position of the vehicle through a Bluetooth module.
In order to achieve the above object, the present invention provides a dynamic parking space management system for a parking lot, comprising:
the server receives real-time information sent by the parking lot, including the number of the vacant parking spaces, the position of the parking lot and the position information of the vacant parking spaces, processes the real-time information, sends information that vehicles enter the parking lot to the parking lot, pushes the number of the vacant parking spaces, the position of the existing parking spaces, the position of the parking lot, an indoor map and navigation information to the client, and sends available vehicle position information to the client in real time;
the client receives the information sent by the server, and simultaneously receives the position of the client by matching with the positioning system, obtains proper available vehicle position information through calculation of the server, and guides the vehicle to the arranged vehicle position;
the positioning system acquires the position information of the vehicle in real time and sends the position information to the server and the client in real time so that the server can carry out screening calculation and navigation operation on the client by matching with the position information of the vehicle in real time and the information of the currently selected parking space;
the positioning system acquires the position information of the vehicle in real time and sends the position information to the server and the client in real time so that the server can carry out screening calculation and navigation operation on the client by matching with the position information of the vehicle in real time and the information of the currently selected parking space; the positioning system comprises Bluetooth base stations which are distributed in the parking lot and used for positioning, the Bluetooth base stations receive information sent by the server side, detect the position of a user and send positioning navigation signals to the vehicle.
Preferably, the server further comprises a shortest path calculation module, and the module calculates the shortest path for the parking space by adopting a shortest path generation method; the shortest path generation method refers to: setting each parking space as a node, setting the distance between adjacent parking spaces as the weight of the edges between the nodes, generating the shortest path P from each node to the node, storing in a positioning system according to a sequencing mode, then generating another queue Stats with sequence numbers, searching the queue Stats when a vehicle enters a parking lot, searching according to the sequence numbers, immediately ending the finding of the first available parking space, and updating in real time according to the sequence numbers and the positions of the vehicles.
More preferably, the bluetooth base station navigates the vehicle according to the shortest path between the vehicle and the available vehicle space calculated by the shortest path calculation module.
Preferably, the server is further provided with a database, the database stores indoor field maps of the parking lot, the maps are drawn according to the number of layers, the positions of the parking spaces and the parking space numbers are displayed on the map of each layer, each Bluetooth base station is matched with the position on the map, the virtual data are stored in the database, and information in the database is helpful for the parking lot and a user to acquire effective information of the parking lot more conveniently, so that the parking lot is convenient to manage, and meanwhile, the information is provided for the user, and the user can conveniently select and use the information.
Preferably, the client is provided with a navigation module, the module can receive real-time parking lot information pushed by the server, the real-time parking lot information comprises the number of the vacant parking spaces, the position of the parking lot and the position information of the vacant parking spaces, and according to the real-time information and the real-time communication with the server, the navigation module is matched with a positioning system formed by Bluetooth base stations to provide the information of the position of the vehicle, namely the coordinate information of the vehicle or a mobile phone in the parking lot room for the server, and the real-time information communication between the server and the client is matched with the client to provide real-time navigation in the parking lot for the vehicle.
Compared with the prior art, the invention has the following beneficial effects:
the invention utilizes the Bluetooth base stations distributed in the parking lot for positioning, the optimal running path of each parking space and the real-time dynamic parking space information in the parking lot to select the most suitable parking space and path for the user, and can provide real-time navigation in the parking lot for the vehicle through the client.
The invention can effectively save the time required by parking for users, and can maximize and optimize the parking space resources of a parking lot.
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Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a block diagram of a system architecture according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a shortest path computation module according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a positioning system according to an embodiment of the present invention when acquiring a user position;
in the figure: the system comprises a server side 1, a positioning system 2, a client side 3, a Bluetooth base station 4, a parking space 5, a path 6 and a position 7 where a vehicle is located.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.
As shown in fig. 1, a dynamic parking space management system for a parking lot comprises a server 1, a client 3 and a positioning system 2, wherein the positioning system 2 comprises a bluetooth base station 4, the bluetooth base station 4 receives information sent by the server 1 and sends positioning navigation signals to a vehicle, and the client 3 is installed on the vehicle.
The method comprises the steps that a server side 1 receives real-time information sent by a parking lot, wherein the real-time information comprises the number of the vacant parking spaces, the position of the parking lot and the position information of the vacant parking spaces, processes the real-time information, sends information that a vehicle enters the parking lot to the parking lot, pushes the number of the vacant parking spaces, the position of the existing parking spaces, the position of the parking lot and indoor map and navigation information to a client side 3, and sends available vehicle position information to the client side 3 in real time;
the client 3 receives the information sent by the server 1, and simultaneously receives the position of the client by matching with the positioning system 2, obtains proper available vehicle position information through calculation of the server 1, and guides the vehicle to the arranged vehicle position;
the positioning system 2 acquires the position information of the vehicle in real time and sends the position information to the server 1 and the client 3 in real time so that the server 1 performs screening calculation and performs navigation operation on the client 3 by matching with the position information of the vehicle in real time and the current selected parking space information;
the positioning system 2 comprises Bluetooth base stations 4 distributed in a parking lot for positioning, and the Bluetooth base stations 4 receive information sent by the server side 1, detect the position of a vehicle and send positioning navigation signals to the vehicle.
As shown in fig. 2, a navigation schematic diagram in a parking lot is shown, wherein dots represent bluetooth base stations 4, and navigation functions in a parking lot are performed on vehicles through positioning formed by bluetooth communication of the base stations to clients 3 and destination parking space information called in system data, and solid lines represent form paths of users. The client 3 sends and receives bluetooth signals to cooperate with the positioning system 2 formed by the bluetooth base stations 4 to determine the position of the vehicle (i.e. the client 3), and to communicate with the server 1.
In this embodiment, a plurality of bluetooth base stations 4 are distributed near the parking space;
in a preferred embodiment, the server 1 further includes a shortest path calculation module, where the shortest path calculation module uses a shortest path generation method for the parking spaces, that is, sets each parking space 5 as a node, sets the distance between adjacent parking spaces 5 as a weight value of the edge between the nodes, generates a shortest path P from each node to the node (parking space), stores the shortest path P in the positioning system 2 according to a sorting mode, then generates another queue Stats with a sequence number, when a vehicle enters the parking lot, searches the queue Stats, searches according to the sequence number, finds that the first available parking space 5 is immediately finished, updates a real-time update according to the sequence number and the position of the vehicle owner, and calculates the shortest path.
After the shortest path is obtained, the client 3 navigates according to the positioning of the bluetooth base station 4.
Firstly, according to the real-time information of a server side 1, the most suitable information of a parking space 5 is sent to a system, then according to the information of the parking space 5, the position 7 where a vehicle is located is detected by using the assistance of distributed Bluetooth base stations 4, and the real-time navigation of a user is realized on a client side 3, so that the user can reach the position where the vehicle needs to be parked in the most rapid and saving path 6.
As shown in fig. 3, for positioning a vehicle in a parking lot, a bluetooth indoor positioning technology is applied, the signal intensity, the arrival time and the acquired signal phase of a bluetooth signal of a client 3 on the vehicle are acquired through communication between the client 3 and each bluetooth base station 4, and the distance between the vehicle and the bluetooth base station 4 can be calculated through a model of signal attenuation, time, received intensity and phase, and corresponding required model correction.
At this time, the second bluetooth base station 4 is used for detecting the vehicle, and secondary measurement is carried out, so that the vehicle can be initially positioned on the circular arcs of two circles, the positioning ambiguity is reduced by the secondary positioning, and the third positioning is that the third bluetooth base station 4 is used for detecting the vehicle, so that the vehicle can be locked on a point, namely the position coordinate where the vehicle is positioned, and meanwhile, the position of the vehicle can be positioned by fitting the least square method.
Specifically, it is assumed that there are N bluetooth base stations 4, and the coordinates of the bluetooth base stations 4 on the map are P i [x i ,y i ](ii) i.epsilon.1 1 … N), two Bluetooth base stations 4P are selected i ，P j . And simultaneously, the coordinate where the client 3 sending out the Bluetooth signal is located is selected as P (x, y). According to Pythagorean theorem, the vehicle goes to Bluetooth base station 4P i (provided with the Bluetooth base station 4P i The coordinates are [ x i ，y i ]) The distance of (2) is:
similarly, the vehicle goes to another Bluetooth base station 4P j (provided with the base station P j Is [ x ] j ，y j ]) The distance of (2) is:
the square difference of the distances of the vehicle to the two bluetooth base stations 4 can be derived from the above two formulas:
D＝[P-P i ] 2 -[P-P j ] 2 ＝(x-x i ) 2 +(y-y i ) 2 -[(x-x j ) 2 +(y-y j ) 2 ]
this also constitutes a critical condition between these two measured distances and the coordinates, and then the transform of the equation above can be obtained:
x(2x j -2x i )+y(2y j -2y i )＝([P-P i ] 2 -x i 2 -y i 2 )-([P-P j ] 2 -x j 2 -y j 2 )
let t= (x, y) T Then constructing the following matrix by the above several formulas:
what can be obtained is then the relationship between the coordinate t and the two matrices is h·t=z;
the coordinates of the device can be obtained through transformation: t= (B) T B -1 )B T Z。
The positioning system 2 feeds back the information to the server 1 after acquiring the position information of the vehicle, the server 1 feeds back the information to the client 3, and the information is displayed on a map of a parking lot of the client 3 after acquiring the position of the vehicle, and a navigation operation is performed on the vehicle.
Meanwhile, a parking space detection device is required to be installed in a parking lot, namely, whether a vehicle is parked or not can be judged through a small infrared signal transceiver installed below the parking space, and whether the vehicle is blocked or not is judged according to the intensity, the phase and the like of a reflected signal. And the detection condition is reflected to the server 1 for updating and storing through a communication cable or wireless communication in real time.
The server 1 further includes a parking space management module, the module uses each parking space as a node, the distance between the nodes is a weight of the edge, the shortest distance Pk between each entrance and each parking space Ai can be calculated by using dijkstra shortest path algorithm, the distances are ordered, and meanwhile, the parking space numbers Ai corresponding to the corresponding distances are updated correspondingly, any ordering algorithm can be used, because the number of the parking spaces is limited, any algorithm does not affect the efficiency, another sequence Stats A i is generated according to the order after ordering, and the state of each parking space with the corresponding sequence is stored for managing whether the parking space is available.
When a vehicle enters the parking lot barrier gate, the barrier gate simultaneously sends a request to the server side 1, after the server side 1 receives the request, the server side searches from all the current parking space states Stats according to serial numbers, searches the parking space in the first available state, extracts the parking space to obtain a parking space serial number A [ i ], sends the serial number to the client side 3 and updates the database.
After the serial number A [ i ] is obtained, the coordinate information is sent to the client 3 according to the coordinate information of the corresponding parking space A [ i ] stored in the database of the server 1, and the client 3 performs a navigation operation for the client 3 according to the positioning of the Bluetooth base station 4 after receiving the coordinate information. According to the algorithm of the shortest path of Floyd, the coordinate information of the vehicle which is obtained previously is firstly obtained, the information is sent to the client 3 by the server 1, and the position of the vehicle on the map is obtained, so that the vehicle is fitted to the nearest node P, and then the shortest path from the node P to the node Q corresponding to the target parking space A [ i ] is calculated.
After the shortest path is obtained, the shortest path is drawn and updated on the map of the parking lot in real time through the client 3, and is displayed on the map of the client 3 to perform navigation operation.
The shortest path here is the shortest path used for real-time navigation in the parking lot, which means the shortest path for the current position of the vehicle (i.e., the client 3) to reach the selected target parking space position, and thus the navigation operation is performed with the information. The shortest path calculated by the shortest path calculation module is preprocessed and calculated by the server 1, and the shortest path information from the entrance where the vehicle enters to the nearest parking space in all available idle vehicles is stored in the server 1.
The Floyd shortest path algorithm is a dynamic programming process, assuming Dis (i, j) is node P i To node P j For each node P [ the shortest path distance of]Check Dis (i, k) +Dis (k, j)<Dis (i, j) is true, if true, proving that the product is from P i To P []To P j Path ratio P of (2) i Directly to P j If the path of (i, j) =dis (i, k) +dis (k, j) is short, so that when all nodes k, dis (i, j) have been traversed, the shortest path distance from i to j is recorded.
The foregoing describes specific embodiments of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the claims without affecting the spirit of the invention.
Claims (4)
1. A parking area developments parking stall management system, its characterized in that: comprising the following steps:
the server receives real-time information sent by the parking lot, including the number of the vacant parking spaces, the position of the parking lot and the position information of the vacant parking spaces, processes the real-time information, sends information that vehicles enter the parking lot to the parking lot, pushes the number of the vacant parking spaces, the position of the existing parking spaces, the position of the parking lot, an indoor map and navigation information to the client, and sends available vehicle position information to the client in real time;
the client receives the information sent by the server, and simultaneously receives the position of the client by matching with the positioning system, obtains proper available vehicle position information through calculation of the server, and guides the vehicle to the arranged vehicle position according to the information pushed by the server;
the positioning system acquires the position information of the vehicle in real time and sends the position information to the server and the client in real time so that the server can carry out screening calculation and navigation operation on the client by matching with the position information of the vehicle in real time and the information of the currently selected parking space; the positioning system comprises Bluetooth base stations which are distributed in the parking lot and used for positioning, wherein the Bluetooth base stations receive information sent by a server, detect the position of a vehicle and send positioning navigation signals to the vehicle;
the server side further comprises a shortest path calculation module, and the shortest path calculation module calculates a shortest path for the parking space by adopting a shortest path generation method;
the shortest path generation method refers to: setting each parking space as a node, setting the distance between adjacent parking spaces as the weight of the edges between the nodes, firstly generating the shortest path P from each node to the node, storing in a positioning system according to a sequencing mode, then generating another queue Stats with sequence numbers, searching the queue Stats when a vehicle enters a parking lot, searching according to the sequence numbers, immediately ending finding the first available parking space, and updating in real time according to the sequence numbers and the positions of the vehicles;
the server side further comprises a parking space management module, wherein each parking space is used as a node, the distance between the node and the node is a weight of an edge, the shortest distance Pk between each entrance and each parking space Ai is calculated by using a dijkstra shortest path algorithm, the distances are sequenced, the parking space numbers Ai corresponding to the corresponding distances are updated, another sequence Stats A i is generated according to the sequence after sequencing, and the state of each parking space with the corresponding sequence number is stored for managing whether the parking space is available or not;
when a vehicle enters the parking lot barrier gate, the barrier gate simultaneously sends a request to a server, after the server receives the request, the server retrieves from all parking space states Stats according to serial numbers, retrieves the parking space in the first available state, extracts the parking space to obtain a parking space serial number A [ i ], sends the serial number to a client and updates a database;
the shortest path of the current position of the vehicle reaching the selected target parking space position is obtained according to a Floyd shortest path algorithm, coordinate information of the vehicle which is obtained previously is firstly obtained, the coordinate information is sent to a client by a server to obtain the position of the vehicle on a map, so that the vehicle is fitted to a nearest node P, and then the shortest path from the node P to a node Q corresponding to the target parking space A [ i ] is calculated; after the shortest path is obtained, the shortest path is drawn and updated on the map of the parking lot in real time through the client, and the shortest path is displayed on the map of the client to carry out navigation operation;
the Floyd shortest path algorithm is a dynamic programming process, assuming Dis (i, j) is node P i To node P j For each node P [ the shortest path distance of]Check Dis (i, k) +Dis (k, j)<Dis (i, j) is true, if true, proving that the product is from P i To P []To P j Path ratio P of (2) i Directly to P j If the path of (i, j) =dis (i, k) +dis (k, j) is short, so that when all nodes k, dis (i, j) have been traversed, the shortest path distance from i to j is recorded.
2. The dynamic parking space management system of claim 1, wherein: after the server obtains the serial number A [ i ], the server sends the coordinate information to the client according to the coordinate information of the corresponding parking space A [ i ] stored in the server, and the client performs a navigation operation for the client according to the positioning of the Bluetooth base station after receiving the coordinate information.
3. The dynamic parking space management system of any one of claims 1-2, wherein: the server is also provided with a database, the database is stored with indoor field maps of the parking lot, the maps are drawn according to the number of layers, the map of each layer is provided with a display parking space and a parking space number, each Bluetooth base station is matched with the position on the map, the virtual data are stored in the database, and information in the database is helpful for the parking lot and a user to acquire effective information of the parking lot more conveniently, so that the parking lot is convenient to manage, and meanwhile, the information is provided for the user, and the user can conveniently select and use.
4. The dynamic parking space management system of any one of claims 1-2, wherein: the client is provided with a navigation module, the navigation module can receive real-time parking lot information pushed by the server, the real-time parking lot information comprises the number of the vacant parking spaces, the position of the parking lot and the position information of the vacant parking spaces, and the navigation module is matched with a positioning system formed by Bluetooth base stations according to the real-time information and the real-time communication of the service end, and provides real-time information of the position of a vehicle, namely the coordinate information of the vehicle or a mobile phone in a parking lot room, for the server, and the real-time information communication of the service end and the client is matched with the client to provide real-time navigation in the parking lot for the vehicle.
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