CN113192324B - Underground loop vehicle guidance system and method - Google Patents

Underground loop vehicle guidance system and method Download PDF

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Publication number
CN113192324B
CN113192324B CN202110389683.4A CN202110389683A CN113192324B CN 113192324 B CN113192324 B CN 113192324B CN 202110389683 A CN202110389683 A CN 202110389683A CN 113192324 B CN113192324 B CN 113192324B
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vehicle
information
detection
distance
guiding
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CN113192324A (en
Inventor
黄�俊
董盛时
张忠宇
邢冬冬
陈飞
卢志飞
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JSTI Group Co Ltd
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JSTI Group Co Ltd
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
    • G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
    • G08G1/0145—Measuring and analyzing of parameters relative to traffic conditions for specific applications for active traffic flow control
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
    • G01C21/34—Route searching; Route guidance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/065—Traffic control systems for road vehicles by counting the vehicles in a section of the road or in a parking area, i.e. comparing incoming count with outgoing count
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0968—Systems involving transmission of navigation instructions to the vehicle
    • G08G1/096833—Systems involving transmission of navigation instructions to the vehicle where different aspects are considered when computing the route
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/025—Services making use of location information using location based information parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication

Abstract

The invention belongs to the technical field of intelligent traffic, and particularly relates to an underground loop vehicle guiding system and method. The system comprises: the intelligent terminal is used for acquiring the current position information of the vehicle to be guided in real time and sending a vehicle guiding request to the vehicle guiding device; the vehicle guiding device is used for receiving a vehicle guiding request and sending a distance detection request to the corresponding vehicle detecting device according to the vehicle guiding request; the vehicle detection device is used for receiving the distance detection request and detecting in real time to obtain the detection distance between the vehicle detection device and the vehicle to be guided; the vehicle guiding device is used for generating first vehicle guiding information from the current position of the vehicle to be guided to the destination according to the vehicle guiding request and the detection distance; and the intelligent terminal is used for carrying out planning path display and distance prompt based on the first vehicle guide information. The system improves the traffic efficiency of vehicles in the underground loop and the driving experience of drivers in the underground loop.

Description

Underground loop vehicle guidance system and method
Technical Field
The invention belongs to the technical field of intelligent traffic, and particularly relates to an underground loop vehicle guiding system and method.
Background
A large amount of parking requirements are possessed by a city Central Business District (CBD), but serious traffic jam questions are easily asked in the mode that the traditional underground garage entrance is directly communicated with the ground, so that a more efficient three-dimensional traffic system needs to be considered, and underground, ground and overground spaces are fully utilized to form a comprehensive traffic network system. The underground loop connects relatively independent underground garages in a certain area in series in a closed loop, so that parking resources in the area are effectively integrated and shared, and the matching level of infrastructure is improved. For larger underground loop projects, more underground garages are generally connected and more ground access openings are formed.
When a driver drives a vehicle, the driver usually depends on a terminal navigation system to navigate, and the positioning and navigation are mostly based on a Global Positioning System (GPS), and the basic principle is as follows: and planning a path according to the initial position and the destination by combining with an electronic map of local storage, and prompting and guiding the driver with a real-time path through vision and voice according to GPS positioning in the driving process. But the environment is relatively closed in the underground space, and navigation software cannot work normally due to inaccurate positioning; the driver has to rely on vision for the path determination. Due to poor field of vision in the underground loop, if a certain method is not adopted to guide the vehicles to enter and exit the underground loop and the underground garage, the vehicles tend to run slowly, and the traffic efficiency of the vehicles in the underground loop and the driving experience of a driver in the underground loop are reduced.
Disclosure of Invention
Technical problem to be solved
The application provides an underground loop vehicle guiding system and method, which aim to solve the problems that in the prior art, vehicles run slowly, the passing efficiency of the vehicles in an underground loop is reduced, and the driving experience of a driver in the underground loop is reduced.
(II) technical scheme
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, an embodiment of the present invention provides an underground loop vehicle guidance system, where the system includes an intelligent terminal, a vehicle detection device, and a vehicle guidance device, where the vehicle guidance device is in communication connection with the intelligent terminal and the vehicle detection device, respectively;
the intelligent terminal is positioned in a vehicle to be guided and used for acquiring the current position information of the vehicle to be guided in real time and sending a vehicle guiding request to the vehicle guiding device based on the current position information, the pre-acquired vehicle information to be guided and destination information;
the vehicle guiding device is used for receiving a vehicle guiding request sent by the intelligent terminal and sending a distance detection request to a corresponding vehicle detection device according to the vehicle guiding request;
the vehicle detection device is arranged at each entrance and exit of an underground garage and each entrance and exit of an underground loop, and is used for receiving the distance detection request, detecting in real time according to the distance detection request to obtain a detection distance between the vehicle detection device and the vehicle to be guided, and sending the detection distance to the vehicle guide device;
the vehicle guiding device is used for generating first vehicle guiding information from the current position of a vehicle to be guided to a destination according to the vehicle guiding request and the detection distance and sending the first vehicle guiding information to the intelligent terminal; the first vehicle guiding information comprises distance prompting information;
and the intelligent terminal is used for carrying out planning path display and distance prompt based on the first vehicle guide information.
Optionally, the vehicle detection device includes:
the vehicle information acquisition module is used for receiving a distance detection request sent by the vehicle guiding device and acquiring the information of the vehicle to be guided based on the distance detection request, wherein the information of the vehicle to be guided comprises Bluetooth MAC address information of the vehicle-mounted intelligent terminal;
the first Bluetooth module is used for establishing Bluetooth connection with the intelligent terminal based on the information of the vehicle to be guided, acquiring a signal strength value of the connection between the first Bluetooth module and the intelligent terminal in real time and sending the signal strength value to the distance detection module;
and the distance detection module is used for acquiring the signal intensity value, detecting the detection distance between the first Bluetooth module and the intelligent terminal in real time based on the signal intensity value, and sending the detection distance to the vehicle guiding device.
Optionally, the vehicle detection device further comprises:
the control module is used for acquiring the detection distance and sending a signal for stopping distance detection to the distance detection module when the detection distance is reduced to a first preset threshold value; and when the detection distance is greater than a second preset threshold value, sending a signal for starting distance detection to the distance detection module.
Optionally, the vehicle detection device further comprises:
the flow counting module is used for counting the number information of the vehicles running into and out of the underground loop and/or the underground garage based on the information of the vehicles to be guided and the detection distance, and sending the number information of the vehicles to the vehicle guiding device;
and the congestion detection module is used for generating congestion prompt information based on the information of the vehicle to be guided and the detection distance detection and sending the congestion prompt information to the vehicle guide device.
Optionally, the vehicle guiding device comprises:
the detection device determining module is used for receiving a vehicle guiding request sent by the intelligent terminal, the vehicle quantity information sent by the flow counting module and the congestion prompting information sent by the congestion detection module, determining a vehicle detection device matched with a destination based on the vehicle quantity information, the congestion prompting information and destination information in the vehicle guiding request, and sending a distance detection request to the vehicle detection device;
and the guiding information generating module is used for receiving the detection distance sent by the vehicle detection device, planning a path based on the vehicle guiding request and the determined vehicle detection device to obtain a first planned path, generating second vehicle guiding information from the current position of the vehicle to be guided to a destination according to the first planned path, the congestion prompting information and the detection distance, and sending the second vehicle guiding information to the intelligent terminal.
Optionally, the intelligent terminal is a mobile terminal or a vehicle-mounted terminal, in which guidance system software is installed in advance.
Optionally, the intelligent terminal includes:
the second Bluetooth module is used for establishing Bluetooth connection with the first Bluetooth module;
the interactive module is used for providing a human-computer interactive interface, responding to an instruction input by a user to acquire destination information corresponding to the instruction and sending the destination information to the request generating module;
the positioning module is used for obtaining the current position information of the vehicle to be guided based on the wireless network signal and sending the current position information to the request generating module;
the request generating module is used for generating a vehicle guiding request based on pre-acquired information of the vehicle to be guided, the destination information and the current position information, and sending the vehicle guiding request to the vehicle guiding device;
the interaction module is used for receiving second vehicle guiding information sent by the vehicle guiding device and carrying out planning path display, distance prompt and congestion prompt based on the second vehicle guiding information.
In a second aspect, an embodiment of the present invention provides an underground loop vehicle guiding method, including:
the method comprises the steps that an intelligent terminal obtains current position information of a vehicle to be guided in real time and sends a vehicle guiding request to a vehicle guiding device based on the current position information, the pre-obtained vehicle information to be guided and destination information;
the vehicle guiding device receives a vehicle guiding request sent by the intelligent terminal and sends a distance detection request to a corresponding vehicle detection device according to the vehicle guiding request;
the vehicle detection device receives the distance detection request, detects the detection distance between the vehicle detection device and the vehicle to be guided in real time according to the distance detection request, and sends the detection distance to a vehicle guide device;
the vehicle guiding device generates third vehicle guiding information from the current position of the vehicle to be guided to a destination according to the vehicle guiding request and the detection distance, and sends the third vehicle guiding information to the intelligent terminal; the third vehicle guiding information comprises distance prompting information;
and the intelligent terminal performs planning path display and distance prompt based on the third vehicle guide information.
Optionally, the step of acquiring, by the intelligent terminal, the current location information of the vehicle to be guided in real time includes:
the intelligent terminal is connected with wireless network node equipment which is arranged beside the vehicle detection device in advance, and the wireless network is one of a WiFi network, a Bluetooth network and a ZigBee network;
selecting two nearest network nodes as reference points, and acquiring distance information of the vehicle relative to the two reference points when the vehicle runs in the underground loop;
and determining the current position information of the vehicle to be guided based on the distance information and the road position information of the underground loop.
Optionally, the vehicle detecting device obtains information of the number of vehicles entering and exiting the underground loop and/or the underground garage based on the distance detection request and the detected distance statistics, detects and generates congestion prompt information, and sends the information of the number of vehicles and the congestion prompt information to the vehicle guiding device.
Optionally, the step of generating third vehicle guidance information by the vehicle guidance device includes:
s41, receiving a vehicle guide request sent by the intelligent terminal and vehicle number information and congestion prompting information sent by the vehicle detection device, determining a vehicle detection device matched with a destination based on the vehicle number information, the congestion prompting information and destination information in the vehicle guide request, and sending a distance detection request to the vehicle detection device;
and S42, receiving the detection distance sent by the vehicle detection device, planning a path based on the vehicle guide request and the determined vehicle detection device to obtain a second planned path, and generating third vehicle guide information from the current position of the vehicle to be guided to the destination according to the second planned path, the detection distance and the congestion prompt information.
(III) advantageous effects
The beneficial effects of the invention are: the invention provides an underground loop vehicle guiding system and method, which are used for accurately guiding vehicles needing to enter and exit an underground loop garage through planning path display and distance prompt, so that the running speed of the vehicles is improved, and the passing efficiency of the vehicles in the underground loop and the driving experience of a driver in the underground loop are further improved.
Drawings
The application is described with the aid of the following figures:
FIG. 1 is a schematic representation of an underground loop vehicle guidance system architecture in one embodiment of the present application;
FIG. 2 is a schematic structural diagram of a vehicle detecting device according to another embodiment of the present application;
FIG. 3 is a schematic flow chart of a method for guiding underground loop vehicles in yet another embodiment of the present application;
Detailed Description
In order to better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Example one
FIG. 1 is a schematic diagram of an underground loop vehicle guidance system in one embodiment of the present application. In order to more clearly explain the present invention, the following description will be made for each device in this embodiment with reference to fig. 1.
As shown in fig. 1, the underground loop vehicle guiding system comprises a vehicle guiding device 100, an intelligent terminal 200 and a vehicle detecting device 300, wherein the vehicle guiding device 100 is respectively connected with the intelligent terminal 200 and the vehicle detecting device 300 in a communication way;
the intelligent terminal 200 is located in the vehicle to be guided, and is configured to obtain current location information of the vehicle to be guided in real time, and send a vehicle guidance request to the vehicle guidance device 100 based on the current location information, the vehicle information to be guided obtained in advance, and destination information;
the vehicle guiding device 100 is configured to receive a vehicle guiding request sent by the intelligent terminal 200, and send a distance detection request to the corresponding vehicle detecting device 300 according to the vehicle guiding request;
the vehicle detection device 300 is installed at each entrance and exit of the underground garage and each entrance and exit of the underground loop, and is used for receiving a distance detection request, detecting in real time according to the distance detection request to obtain a detection distance between the vehicle detection device and a vehicle to be guided, and sending the detection distance to the vehicle guiding device 100;
the vehicle guiding device 100 is used for generating first vehicle guiding information from the current position of the vehicle to be guided to a destination according to the vehicle guiding request and the detected distance, and sending the first vehicle guiding information to the intelligent terminal 200; the first vehicle guiding information comprises distance prompt information;
and the intelligent terminal 200 is used for performing planning path display and distance prompt based on the first vehicle guiding information.
The embodiment provides an underground loop vehicle guiding system, vehicles needing to enter and exit an underground loop garage are accurately guided through planning path display and distance prompt, vehicle drivers are helped to reach a target garage and the ground in an optimized mode, the vehicle running speed is improved, and then the passing efficiency of the vehicles in the underground loop and the driving experience of the drivers in the underground loop are improved.
For a better understanding of the present invention, each device or apparatus in this embodiment is described below.
In this embodiment, the vehicle detection device 300 may include:
the vehicle information acquisition module is used for receiving a distance detection request sent by the vehicle guiding device and acquiring information of a vehicle to be guided based on the distance detection request, wherein the information of the vehicle to be guided comprises Bluetooth MAC address information of the vehicle-mounted intelligent terminal;
the first Bluetooth module is used for establishing Bluetooth connection with the intelligent terminal based on the information of the vehicle to be guided, acquiring a signal intensity value of the connection between the first Bluetooth module and the intelligent terminal in real time and sending the signal intensity value to the distance detection module;
and the distance detection module is used for acquiring a signal intensity value, detecting the detection distance between the first Bluetooth module and the intelligent terminal based on the signal intensity value in real time, and sending the detection distance to the vehicle guiding device.
In this embodiment, the intelligent terminal 200 is a mobile terminal that is pre-installed with a guidance system software. It should be understood that the mobile terminal in the guidance system is only used as an illustrative illustration of the composition of the guidance system, and does not constitute a limitation on the type of the intelligent terminal in the guidance system. For example, the smart terminal may be a vehicle-mounted terminal.
In this embodiment, the distance detection of the bluetooth is based on a Received Signal Strength Indication (Received Signal Strength Indication, RSSI) principle, and the first bluetooth module receives a MAC address and an RSSI reported by the intelligent terminal bluetooth device, converts the Received Signal Strength into a detection distance between the first bluetooth module and the intelligent terminal, and sends the detection distance to the vehicle guidance device.
In this embodiment, the intelligent terminal specifically includes:
the second Bluetooth module is used for establishing Bluetooth connection with the first Bluetooth module;
the interactive module is used for providing a human-computer interactive interface, responding to an instruction input by a user to acquire destination information corresponding to the instruction and sending the destination information to the request generating module;
the positioning module is used for obtaining the current position information of the vehicle to be guided based on the wireless network signal and sending the current position information to the request generation module;
the request generating module is used for generating a vehicle guiding request based on pre-acquired information of the vehicle to be guided, destination information and current position information, and sending the vehicle guiding request to the vehicle guiding device;
and the interaction module is used for receiving the first vehicle guiding information sent by the vehicle guiding device and carrying out planning path display and distance prompt based on the first vehicle guiding information.
In this embodiment, the positioning method of the positioning module may be WiFi signal positioning, or bluetooth signal positioning, or ZigBee signal positioning.
Wifi location, bluetooth location, zigBee signal location are only data transmission mode is different. The ZigBee signal positioning is based on an RSSI ranging algorithm, and after an RSSI value is measured, a corresponding distance value is obtained through calculation.
The positioning algorithm of the rear end in the embodiment is improved based on a multilateral positioning method, the positions of two nearest vehicle detection devices are selected as reference points, and distance information of the two reference points is obtained when a vehicle runs in an underground loop. Based on the distance information and road location information for the underground loop, a unique triangle can be determined, i.e., the location of the vehicle can be determined.
By adopting the positioning algorithm in the embodiment, the positioning accuracy is high, the laying cost is low, and the construction is easy.
It should be noted that, in this embodiment, the distance prompt of the interaction module may be to call a speaker of the intelligent terminal to emit a prompt sound, or to give a distance display prompt on a display screen of the intelligent terminal.
When the intelligent terminal is a mobile terminal, the information of the vehicle to be guided can be Bluetooth MAC address information of the vehicle-mounted intelligent terminal and identification information of the mobile terminal.
When the intelligent terminal is a vehicle-mounted terminal, the information of the vehicle to be guided can be Bluetooth MAC address information of the vehicle-mounted intelligent terminal and identification information of the vehicle.
The vehicle guidance device 100 receives the vehicle guidance request sent by the intelligent terminal 200, and sends a distance detection request to the corresponding vehicle detection device 300 according to the vehicle guidance request, that is, MAC address information of the vehicle to be guided is sent to the corresponding vehicle detection device 300. When receiving the detection distance sent by the vehicle detection device 300, the vehicle guidance device 100 determines a corresponding mobile terminal or a vehicle to be guided, and sends first vehicle guidance information to the intelligent terminal.
In order to enable the mobile terminal in the guiding system to continue navigation without a mobile network, the guiding software stores an off-line map, and acquires the position information of the mobile terminal through a Bluetooth technology.
Example two
Fig. 2 is a schematic structural diagram of a vehicle detection apparatus in another embodiment of the present application, and as shown in fig. 2, in another embodiment of the present application, the vehicle detection apparatus includes a control module 304, a traffic statistic module 305, and a congestion detection module 306 in addition to a vehicle information acquisition module 301, a first bluetooth module 301, and a distance detection module 303. The functions of the vehicle information acquisition module 301, the first bluetooth module 301, and the distance detection module 303 may refer to the first embodiment, and are not described herein, and only the functions of the control module 304, the flow rate statistics module 305, and the congestion detection module 306 are described.
The control module 304 is configured to obtain a detection distance, and send a signal for stopping distance detection to the distance detection module when the detection distance is reduced to a first preset threshold; and when the detection distance is greater than a second preset threshold value, sending a signal for starting distance detection to the distance detection module.
And the flow counting module 305 is used for counting the number information of the vehicles entering and exiting the underground loop and/or the underground garage based on the information of the vehicles to be guided and the detection distance, and sending the number information of the vehicles to the vehicle guiding device.
And the congestion detection module 306 is configured to generate congestion prompt information based on the information of the vehicle to be guided and the detection distance detection, and send the congestion prompt information to the vehicle guiding device.
In this embodiment, the first preset threshold may be a distance when the vehicle passes through the vehicle detection device, and when the detection distance is reduced to the first preset threshold, a signal for stopping the distance detection is sent to the distance detection module, that is, the distance detection is stopped after the vehicle enters/exits the underground loop or the underground garage. Further, when the detection distance decreases to the first preset threshold, the bluetooth connection between the first bluetooth module 301 and the intelligent terminal may be interrupted.
In this embodiment, the second preset threshold may be determined according to an effective transmission distance of bluetooth. I.e. when the vehicle enters the effective transmission range of bluetooth, distance detection may be performed.
In an embodiment of the present application, a vehicle guiding apparatus may include:
the detection device determining module is used for receiving the vehicle guiding request sent by the intelligent terminal, the vehicle quantity information sent by the flow counting module and the congestion prompting information sent by the congestion detection module, determining a vehicle detection device matched with a destination based on the vehicle quantity information, the congestion prompting information and the destination information in the vehicle guiding request, and sending a distance detection request to the vehicle detection device;
the guiding information generating module is used for receiving the detection distance sent by the vehicle detection device, planning a path based on the vehicle guiding request and the determined vehicle detection device to obtain a first planned path, generating second vehicle guiding information from the current position of the vehicle to be guided to the destination according to the first planned path, the congestion prompting information and the detection distance, and sending the second vehicle guiding information to the intelligent terminal; the second vehicle guidance information includes distance prompt information and congestion prompt information.
Through the flow statistics and the road congestion statistics of the underground garage, the parking resources in the region can be reasonably allocated, the parking is carried out at the peak, and the resource utilization maximization is realized; meanwhile, the vehicle can be more accurately navigated, the speed of the same trip is improved, and the unavailability of the target underground garage is avoided.
EXAMPLE III
The second aspect of the present application provides a method for guiding underground loop vehicles through another embodiment, fig. 3 is a schematic flow chart of the method for guiding underground loop vehicles in another embodiment of the present application, as shown in fig. 3, the method includes:
s1, an intelligent terminal acquires current position information of a vehicle to be guided in real time and sends a vehicle guide request to a vehicle guide device based on the current position information, the pre-acquired vehicle information to be guided and destination information;
s2, the vehicle guiding device receives a vehicle guiding request sent by the intelligent terminal and sends a distance detection request to a corresponding vehicle detection device according to the vehicle guiding request;
s3, the vehicle detection device receives the distance detection request, detects the detection distance between the vehicle detection device and the vehicle to be guided in real time according to the distance detection request, and sends the detection distance to the vehicle guide device;
s4, the vehicle guiding device generates third vehicle guiding information from the current position of the vehicle to be guided to the destination according to the vehicle guiding request and the detected distance, and sends the third vehicle guiding information to the intelligent terminal; the third vehicle guiding information comprises distance prompting information;
and S5, the intelligent terminal carries out planning path display and distance prompt based on the first vehicle guide information.
The embodiment provides an underground loop vehicle guiding method, which is used for accurately guiding vehicles needing to enter and exit an underground loop garage through planned path display and distance prompt, so that a vehicle driver is helped to reach a target garage and the ground in an optimized mode, the vehicle running speed is increased, and the vehicle passing efficiency and the driving experience of the driver in the underground loop are improved.
In this embodiment, the step of acquiring, by the intelligent terminal, the current location information of the vehicle to be guided in real time includes:
the intelligent terminal is connected with wireless network node equipment which is arranged beside the vehicle detection device in advance, and the wireless network is one of a WiFi network, a Bluetooth network and a ZigBee network;
selecting two nearest network nodes as reference points, and acquiring distance information of the vehicle relative to the two reference points when the vehicle runs in an underground loop;
and determining the current position information of the vehicle to be guided based on the distance information and the road position information of the underground loop.
By adopting the positioning algorithm in the embodiment, the positioning accuracy is high, the laying cost is low, and the construction is easy.
As an improvement to the method of this embodiment, the vehicle detection device obtains the number information of the vehicles entering and exiting the underground loop and/or the underground garage based on the distance detection request and the detected distance statistics, detects and generates the congestion prompt information, and sends the number information of the vehicles and the congestion prompt information to the vehicle guidance device.
The vehicle guidance device generating third vehicle guidance information, including:
s41, receiving a vehicle guiding request sent by an intelligent terminal and vehicle quantity information and congestion prompting information sent by a vehicle detecting device, determining the vehicle detecting device matched with a destination based on the vehicle quantity information, the congestion prompting information and destination information in the vehicle guiding request, and sending a distance detecting request to the vehicle detecting device;
and S42, receiving the detection distance sent by the vehicle detection device, planning a path based on the vehicle guide request and the determined vehicle detection device to obtain a second planned path, and generating third vehicle guide information from the current position of the vehicle to be guided to the destination according to the second planned path, the detection distance and the congestion prompt information.
The vehicle guiding device sends the third vehicle guiding information to the intelligent terminal; the third vehicle guiding information comprises distance prompting information and congestion prompting information.
In this embodiment, the intelligent terminal may be a mobile phone client, the mobile phone client is a user terminal, the client includes related information of multiple garages of the underground loop, including a rough position, a remaining position condition in the garage, and positions of the underground loop and a ground access, and the intelligent terminal is convenient for a vehicle driver to select a target garage and the ground access.
The vehicle guidance device may be a server terminal capable of providing software and data support for the system.
Vehicle detection device lays in underground loop and garage access & exit and with ground access & exit, including the singlechip that can pass through bluetooth perception vehicle distance. The singlechip can accept the mobile phone Bluetooth signal and can identify the distance between the mobile phone client and the position of the singlechip.
For a vehicle needing to enter the underground loop garage, firstly, a vehicle driver needs to open a mobile phone client in advance, and selects a corresponding target garage according to the state condition of the underground garage in the client. After the selection is determined, the information is transmitted to the server terminal through the server, and the server terminal matches the optimal route entering the garage according to the actual situation and sends the related instruction to the single chip microcomputer of the entrance and the exit on the vehicle running route. Then each single chip microcomputer judges the driving distance to the vehicle through the Bluetooth signal, when the distance between the single chip microcomputer and the vehicle is short, the single chip microcomputer feeds information back to the server terminal, the server terminal gives relevant prompts to the mobile phone client, and relevant vehicle drivers are informed to drive into relevant entrances and exits in time.
For vehicles needing to exit from an underground garage, firstly, a driver selects a corresponding ground access in a client. After the selection is determined, the information can be transmitted to the server terminal through the server, the server terminal can match the optimal route for driving to the relevant exit according to the actual situation and sends the relevant instruction to the single chip microcomputer of the entrance and the exit on the vehicle driving route. Then, each single chip microcomputer judges the driving distance to the vehicle through Bluetooth signals, when the distance between the single chip microcomputer and the vehicle is short, the single chip microcomputer feeds information back to the server terminal, the server terminal gives relevant prompts to the mobile phone client, and relevant vehicle drivers are informed of driving into relevant entrances and exits in time.
It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. The use of the terms first, second, third, etc. are used for convenience only and do not denote any order. These words are to be understood as part of the name of the component.
Furthermore, it should be noted that in the description of the present specification, the description of the term "one embodiment", "some embodiments", "examples", "specific examples" or "some examples", etc., means that a specific feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, the claims should be construed to include preferred embodiments and all changes and modifications that fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention should also include such modifications and variations.

Claims (10)

1. The underground loop vehicle guiding system is characterized by comprising an intelligent terminal, a vehicle detecting device and a vehicle guiding device, wherein the vehicle guiding device is respectively in communication connection with the intelligent terminal and the vehicle detecting device;
the intelligent terminal is positioned in a vehicle to be guided and used for acquiring current position information of the vehicle to be guided in real time and sending a vehicle guiding request to the vehicle guiding device based on the current position information, the pre-acquired vehicle information to be guided and destination information;
the vehicle guiding device is used for receiving a vehicle guiding request sent by the intelligent terminal and sending a distance detection request to a corresponding vehicle detection device according to the vehicle guiding request;
the vehicle detection device is arranged at each entrance and exit of an underground garage and each entrance and exit of an underground loop, and is used for receiving the distance detection request, detecting in real time according to the distance detection request to obtain the detection distance between the vehicle detection device and the vehicle to be guided, and sending the detection distance to the vehicle guide device;
the vehicle guiding device is used for generating first vehicle guiding information from the current position of a vehicle to be guided to a destination according to the vehicle guiding request and the detection distance and sending the first vehicle guiding information to the intelligent terminal; the first vehicle guiding information comprises distance prompt information;
and the intelligent terminal is used for carrying out planning path display and distance prompt based on the first vehicle guide information.
2. A ground loop vehicle guidance system as claimed in claim 1, wherein the vehicle detection means comprises:
the vehicle information acquisition module is used for receiving a distance detection request sent by the vehicle guiding device and acquiring the information of the vehicle to be guided based on the distance detection request, wherein the information of the vehicle to be guided comprises Bluetooth MAC address information of an onboard intelligent terminal;
the first Bluetooth module is used for establishing Bluetooth connection with the intelligent terminal based on the information of the vehicle to be guided, acquiring a signal strength value of the connection between the first Bluetooth module and the intelligent terminal in real time and sending the signal strength value to the distance detection module;
and the distance detection module is used for acquiring the signal intensity value, detecting the detection distance between the first Bluetooth module and the intelligent terminal in real time based on the signal intensity value, and sending the detection distance to the vehicle guiding device.
3. The ground loop vehicle guidance system of claim 2 wherein the vehicle detection means further comprises:
the control module is used for acquiring the detection distance and sending a signal for stopping distance detection to the distance detection module when the detection distance is reduced to a first preset threshold value; and when the detection distance is greater than a second preset threshold value, sending a signal for starting distance detection to the distance detection module.
4. A subterranean loop vehicle guidance system in accordance with claim 3, wherein the vehicle detection means further comprises:
the flow counting module is used for counting and obtaining the number information of the vehicles entering and exiting the underground loop and/or the underground garage based on the information of the vehicles to be guided and the detection distance and sending the number information of the vehicles to the vehicle guiding device;
and the congestion detection module is used for generating congestion prompt information based on the information of the vehicles to be guided and the detection distance detection and sending the congestion prompt information to the vehicle guide device.
5. A subterranean loop vehicle guidance system in accordance with claim 4, wherein the vehicle guidance apparatus comprises:
the detection device determining module is used for receiving a vehicle guiding request sent by the intelligent terminal, the vehicle quantity information sent by the flow counting module and the congestion prompting information sent by the congestion detection module, determining a vehicle detection device matched with a destination based on the vehicle quantity information, the congestion prompting information and destination information in the vehicle guiding request, and sending a distance detection request to the vehicle detection device;
and the guiding information generating module is used for receiving the detection distance sent by the vehicle detection device, planning a path based on the vehicle guiding request and the determined vehicle detection device to obtain a first planned path, generating second vehicle guiding information from the current position of the vehicle to be guided to a destination according to the first planned path, the congestion prompting information and the detection distance, and sending the second vehicle guiding information to the intelligent terminal.
6. The underground loop vehicle guidance system of claim 5, wherein the intelligent terminal comprises:
the second Bluetooth module is used for establishing Bluetooth connection with the first Bluetooth module;
the interactive module is used for providing a human-computer interactive interface, responding to an instruction input by a user to acquire destination information corresponding to the instruction and sending the destination information to the request generating module;
the positioning module is used for obtaining the current position information of the vehicle to be guided based on the wireless network signal and sending the current position information to the request generating module;
the request generating module is used for generating a vehicle guiding request based on pre-acquired information of the vehicle to be guided, the destination information and the current position information, and sending the vehicle guiding request to the vehicle guiding device;
the interaction module is used for receiving second vehicle guiding information sent by the vehicle guiding device and performing planned path display, distance prompt and congestion prompt based on the second vehicle guiding information.
7. A method of guiding an underground loop vehicle, the method comprising:
the method comprises the steps that an intelligent terminal obtains current position information of a vehicle to be guided in real time and sends a vehicle guiding request to a vehicle guiding device based on the current position information, the pre-obtained vehicle information to be guided and destination information;
the vehicle guiding device receives a vehicle guiding request sent by the intelligent terminal and sends a distance detection request to a corresponding vehicle detection device according to the vehicle guiding request;
the vehicle detection device receives the distance detection request, detects the detection distance between the vehicle detection device and the vehicle to be guided in real time according to the distance detection request, and sends the detection distance to a vehicle guide device;
the vehicle guiding device generates third vehicle guiding information from the current position of a vehicle to be guided to a destination according to the vehicle guiding request and the detection distance, and sends the third vehicle guiding information to the intelligent terminal, wherein the third vehicle guiding information comprises distance prompt information;
and the intelligent terminal performs planning path display and distance prompt based on the third vehicle guide information.
8. The underground loop vehicle guiding method according to claim 7, wherein the step of the intelligent terminal acquiring the current position information of the vehicle to be guided in real time comprises:
the intelligent terminal is connected with wireless network node equipment which is arranged beside the vehicle detection device in advance, and the wireless network is one of a WiFi network, a Bluetooth network and a ZigBee network;
selecting two nearest network nodes as reference points, and acquiring distance information of the vehicle relative to the two reference points when the vehicle runs in an underground loop;
and determining the current position information of the vehicle to be guided based on the distance information and the road position information of the underground loop.
9. The underground loop vehicle guiding method according to claim 8, wherein a vehicle detection device obtains information on the number of vehicles entering and exiting a vehicle in an underground loop and/or an underground garage based on the distance detection request and the detected distance statistics, detects and generates congestion prompting information, and sends the information on the number of vehicles and the congestion prompting information to the vehicle guiding device.
10. The underground loop vehicle guiding method of claim 9,
the vehicle guidance device generating third vehicle guidance information, including:
s41, receiving a vehicle guide request sent by the intelligent terminal, and vehicle quantity information and congestion prompt information sent by the vehicle detection device, determining a vehicle detection device matched with a destination based on the vehicle quantity information, the congestion prompt information and destination information in the vehicle guide request, and sending a distance detection request to the vehicle detection device;
and S42, receiving the detection distance sent by the vehicle detection device, planning a path based on the vehicle guide request and the determined vehicle detection device to obtain a second planned path, and generating third vehicle guide information from the current position of the vehicle to be guided to the destination according to the second planned path, the detection distance and the congestion prompt information.
CN202110389683.4A 2021-04-12 2021-04-12 Underground loop vehicle guidance system and method Active CN113192324B (en)

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CN104882000B (en) * 2015-06-24 2017-06-16 上海斐讯数据通信技术有限公司 A kind of intelligent management for solid garage system and method
CN105405312A (en) * 2015-11-19 2016-03-16 惠州Tcl移动通信有限公司 Method and system of location and navigation in underground garage
CN105931488A (en) * 2016-06-23 2016-09-07 吕红芳 Garage system, related device and method
CN106228836A (en) * 2016-08-01 2016-12-14 北京小米移动软件有限公司 Indoor parking guide method and device
CN112270842A (en) * 2020-10-15 2021-01-26 深圳市凯达尔科技实业有限公司 Customized parking lot parking space guiding system and method

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