CN105554878B - Parking management method, vehicle-mounted Bluetooth label, base station and system - Google Patents
Parking management method, vehicle-mounted Bluetooth label, base station and system Download PDFInfo
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- CN105554878B CN105554878B CN201510920208.XA CN201510920208A CN105554878B CN 105554878 B CN105554878 B CN 105554878B CN 201510920208 A CN201510920208 A CN 201510920208A CN 105554878 B CN105554878 B CN 105554878B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
- H04W64/003—Locating users or terminals or network equipment for network management purposes, e.g. mobility management locating network equipment
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/20—Monitoring the location of vehicles belonging to a group, e.g. fleet of vehicles, countable or determined number of vehicles
- G08G1/207—Monitoring the location of vehicles belonging to a group, e.g. fleet of vehicles, countable or determined number of vehicles with respect to certain areas, e.g. forbidden or allowed areas with possible alerting when inside or outside boundaries
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/123—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams
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- 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
- H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
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- 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
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Abstract
The embodiment of the invention discloses a parking management method, a Bluetooth positioning terminal, a base station and a system, which can conveniently and efficiently position and manage vehicles. In the embodiment of the invention, the Bluetooth base station and the access base station are arranged in the parking lot; after being awakened by an entrance signal sent by an entrance base station arranged at an entrance of a parking lot, the Bluetooth positioning terminal receives positioning signals sent by a plurality of Bluetooth base stations arranged at intervals in the parking lot, and determines at least three Bluetooth base stations from the plurality of Bluetooth base stations according to the received signal strength indication RSSI of the positioning signals; and sending the determined information of the at least three Bluetooth base stations and the corresponding RSSI to a server so that the server calculates the parking position information of the vehicle where the Bluetooth positioning terminal is located according to the information of the at least three Bluetooth base stations and the corresponding RSSIs. Therefore, the Bluetooth 4.0BLE technology can be utilized, and the positioning and management of the vehicle can be conveniently and efficiently carried out.
Description
Technical Field
The invention relates to the field of parking lot application, in particular to a parking management method, a vehicle-mounted Bluetooth label, a base station and a system.
Background
With the development of Chinese economy, the living standard of people is continuously improved, and automobiles become daily transportation tools for going out. The increase of vehicles causes the phenomena of difficult parking, difficult vehicle taking and uneven distribution.
In order to solve the three phenomena of difficult parking, difficult car taking and uneven distribution, the newly-built parking lot is added, the utilization efficiency of the existing parking lot is improved, the existing parking lot is fully utilized, and the intelligent parking management system is formed. In any system, the core technology is how to locate the vehicle.
For positioning vehicles, a GPS system can be adopted for positioning vehicles outdoors, and for indoor parking lots, due to attenuation of obstacles such as walls, floors and the like, GPS signals are weak, so that the positioning accuracy is far from meeting the requirement. The technologies that can be used for parking positioning at present mainly include: the method comprises the following steps that a two-dimensional code scheme, an RFID card swiping scheme, a video identification scheme, a WiFi scheme and the like are adopted, but various schemes have corresponding problems, for example, the two-dimensional code scheme has the problem that a large parking lot is difficult to realize one parking space and one code; the risk of forgetting to calibrate the parking space exists; the RFID card swiping scheme can only realize area positioning, otherwise, the cost is high, and the wiring workload is large; the video identification scheme has the advantages of general automatic identification rate accuracy and complex wiring; WiFi scheme installation construction cost is higher, and the wiring is complicated, does not support reverse car of seeking.
Disclosure of Invention
The embodiment of the invention provides a parking management method, a vehicle-mounted Bluetooth tag, a base station and a system, which can conveniently and efficiently position and manage a vehicle by utilizing a Bluetooth 4.0BLE technology.
In a first aspect, an embodiment of the present invention provides a parking management method, including: the Bluetooth positioning terminal is awakened by an entrance signal sent by an entrance base station arranged at an entrance and an exit of the parking lot; then, receiving positioning signals sent by a plurality of Bluetooth base stations arranged in the parking lot at intervals, wherein the positioning signals comprise information of the Bluetooth base stations; the Bluetooth positioning terminal determines at least three Bluetooth base stations from the plurality of Bluetooth base stations according to the received signal strength indication RSSI of the positioning signal; and sending the determined information of the at least three Bluetooth base stations and the corresponding RSSI to a server so that the server calculates the parking position information of the vehicle where the Bluetooth positioning terminal is located according to the information of the at least three Bluetooth base stations and the corresponding RSSIs.
With reference to the first aspect, in a first possible implementation manner of the first aspect, if the bluetooth positioning terminal is a vehicle-mounted bluetooth tag, the bluetooth positioning terminal sends information of the at least three bluetooth base stations and corresponding RSSIs to a server, so that the server calculates parking position information of a vehicle where the bluetooth positioning terminal is located according to the information of the at least three bluetooth base stations and the corresponding RSSIs, specifically:
and the vehicle-mounted Bluetooth tag sends the information of the at least three Bluetooth base stations and the corresponding RSSI to a server through the Bluetooth base station relay, so that the server calculates the parking position information of the vehicle where the Bluetooth positioning terminal is located according to the information of the at least three Bluetooth base stations and the corresponding RSSIs.
With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, after the step of sending, by the vehicle-mounted bluetooth tag, information of at least three bluetooth base stations and corresponding RSSIs to the server through the bluetooth base station relay, so that the server calculates parking position information of a vehicle where the vehicle-mounted bluetooth tag is located according to the information of the at least three bluetooth base stations and the corresponding RSSIs, the method further includes: the vehicle-mounted Bluetooth tag receives an operation instruction sent by the server, and changes the working state according to the operation instruction, wherein the operation instruction is generated by the server and then is relayed to the vehicle-mounted Bluetooth tag through the Bluetooth base station.
With reference to the first aspect or the first possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the bluetooth positioning terminal is a mobile terminal, and the method further includes: after receiving a positioning signal of a Bluetooth base station or an entrance signal of an entrance base station, the mobile terminal acquires available parking space information and a parking lot map of a parking lot from a server through a wireless network; calculating to obtain first positioning information according to the information of at least three Bluetooth base stations and corresponding RSSI (received signal strength indicator); then, calculating a parking target route according to the parking lot map, the available parking space information and the first positioning information; and navigating according to the parking target route to lead to the target parking position.
With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, after the step of navigating by the mobile terminal according to the parking target route to guide to the target parking space position, the method further includes: the mobile terminal saves the position of the target parking space; when the vehicle is taken out, the mobile terminal calculates second positioning information of the mobile terminal according to the information of at least three Bluetooth base stations and corresponding RSSI (received signal strength indicator); the mobile terminal calculates a vehicle taking target route according to the target parking space position, second positioning information of the mobile terminal and a parking lot map; and navigating according to the vehicle taking target route to guide to the target parking position.
With reference to any one of the second possible implementation manner of the first aspect to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, when the bluetooth positioning terminal is a vehicle-mounted bluetooth tag, broadcast signals are used for information and RSSI of three bluetooth base stations sent by the vehicle-mounted bluetooth tag, positioning signals sent by the bluetooth base stations, entry signals sent by an entry and exit base station, information and RSSI of three bluetooth base stations sent by a bluetooth base station relay, and an operation instruction sent by the bluetooth base station relay.
When the Bluetooth positioning terminal is a mobile terminal, the positioning signal sent by the Bluetooth base station and the entrance signal sent by the entrance base station adopt broadcast signals.
With reference to the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect, the information of at least three bluetooth base stations and corresponding RSSIs sent by the vehicle-mounted bluetooth tag, the positioning signals sent by the bluetooth base stations, and the entry signals sent by the entry and exit base stations all use a first broadcast channel; the information of the three Bluetooth base stations and the RSSI (received signal strength indicator) transmitted by the Bluetooth base station through the relay adopt a second broadcast channel; and the operation instruction sent by the Bluetooth base station in a relay way adopts a third broadcast channel.
In a second aspect, an embodiment of the present invention provides a vehicle bluetooth tag, including:
the activation module is used for receiving an entrance signal sent by an entrance base station arranged at an entrance of a parking lot and awakening the vehicle-mounted Bluetooth tag;
the receiving module is used for receiving positioning signals sent by a plurality of Bluetooth base stations arranged in the parking lot at intervals, and the positioning signals comprise information of the Bluetooth base stations;
the positioning information determining module is used for determining at least three Bluetooth base stations from the plurality of Bluetooth base stations according to the received signal strength indication RSSI of the positioning signals;
and the positioning information sending module is used for sending the information of the at least three Bluetooth base stations and the corresponding RSSI to the server through the Bluetooth base station relay, so that the server calculates the parking position information of the vehicle where the vehicle-mounted Bluetooth label is located according to the information of the at least three Bluetooth base stations and the corresponding RSSI.
With reference to the second aspect, in a first possible implementation manner of the second aspect, the receiving module is further configured to receive an operation instruction sent by the server, and change the working state according to the operation instruction, where the operation instruction is generated by the server and relayed to the vehicle-mounted bluetooth tag through the bluetooth base station.
With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner of the first aspect, broadcast signals are used for the information and RSSI of the three bluetooth base stations sent by the vehicle-mounted bluetooth tag, the positioning signal sent by the bluetooth base station, the entry signal sent by the entrance base station, the information and RSSI of the three bluetooth base stations sent by the bluetooth base station in a relay manner, and the operation instruction sent by the bluetooth base station in a relay manner.
With reference to the second possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the information and corresponding RSSIs of at least three bluetooth base stations sent by the vehicle-mounted bluetooth tag, the positioning signals sent by the bluetooth base stations, and the entry signals sent by the entry and exit base stations all use a first broadcast channel; the information of the three Bluetooth base stations and the RSSI (received signal strength indicator) transmitted by the Bluetooth base station through the relay adopt a second broadcast channel; and the operation instruction sent by the Bluetooth base station in a relay way adopts a third broadcast channel.
In a third aspect, an embodiment of the present invention provides a bluetooth base station, including:
the system comprises a broadcasting module, a positioning module and a Bluetooth module, wherein the broadcasting module is used for broadcasting positioning signals of the broadcasting module, and the positioning signals are used for enabling a vehicle-mounted Bluetooth tag to determine at least three Bluetooth base stations from a plurality of Bluetooth base stations according to Received Signal Strength Indication (RSSI) of the positioning signals;
the receiving module is used for receiving the information of at least three Bluetooth base stations and corresponding RSSI (received signal strength indicator) sent by the vehicle-mounted Bluetooth label;
and the relay forwarding module is used for forwarding the information of the at least three Bluetooth base stations and the corresponding RSSI to the server through a relay so that the server calculates the parking position information of the vehicle where the vehicle-mounted Bluetooth label is located according to the information of the at least three Bluetooth base stations and the corresponding RSSI.
In a fourth aspect, an embodiment of the present invention provides an entrance base station, including:
the system comprises a sending module, a server and a receiving module, wherein the sending module is used for sending an entrance signal, the entrance signal is used for awakening a vehicle-mounted Bluetooth tag entering a parking lot so that the vehicle-mounted Bluetooth tag starts to receive positioning signals broadcasted by a plurality of Bluetooth base stations, the information of at least three Bluetooth base stations and corresponding RSSI (received signal strength indicator) are determined from the plurality of Bluetooth base stations according to the RSSI, and the information of the at least three Bluetooth base stations and the corresponding RSSI are relayed to the server through the Bluetooth base stations;
the receiving module is used for receiving the information of at least three Bluetooth base stations relayed by the Bluetooth base stations and the corresponding RSSI;
the sending module is further used for sending the information of the at least three Bluetooth base stations and the corresponding RSSI to the server, so that the server can calculate the parking position information of the vehicle where the vehicle-mounted Bluetooth label is located according to the information of the at least three Bluetooth base stations and the corresponding RSSI.
In a fifth aspect, an embodiment of the present invention provides a parking management system, where the parking management system includes:
the Bluetooth system comprises at least three Bluetooth base stations as described above, at least one vehicle-mounted Bluetooth tag as described above, at least one entrance and exit base station as described above and a server.
According to the technical scheme, the scheme of the embodiment of the invention has the following beneficial effects:
the method comprises the steps of installing the Bluetooth base stations in the parking lot, receiving positioning signals sent by the plurality of Bluetooth base stations arranged in the parking lot at intervals through the Bluetooth positioning terminal, determining at least three Bluetooth base stations from the plurality of Bluetooth base stations according to the received signal strength indication RSSI of the positioning signals, sending information of the determined at least three Bluetooth base stations and the corresponding RSSI to a server through the Bluetooth base stations in a relay mode, and determining the parking space position of a vehicle where the Bluetooth positioning terminal is located through the server according to the information of the at least three Bluetooth base stations and the corresponding RSSI. Therefore, the Bluetooth technology can be utilized, the positioning and management of the vehicle can be conveniently and efficiently carried out, and the Bluetooth vehicle positioning system has the advantages of low cost, high positioning longitude, simplicity in wiring, high automation degree and the like.
Drawings
Fig. 1 is a schematic diagram of an intelligent parking lot based on bluetooth 4.0BLE technology according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a parking management system in an embodiment of the present invention;
FIG. 3 is a flowchart of a parking management method according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of functional modules of a vehicle-mounted Bluetooth tag according to an embodiment of the present invention;
FIG. 5 is a diagram illustrating functional modules of a Bluetooth base station according to an embodiment of the present invention;
fig. 6 is a schematic functional block diagram of an entrance base station according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a parking management method, a vehicle-mounted Bluetooth tag, a base station and a system, which can conveniently and efficiently position and manage a vehicle by utilizing a Bluetooth 4.0BLE technology. The following are detailed below.
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The embodiment of the invention is a technology for positioning based on a Bluetooth technology, can be applied to the field of parking lot application, and can also be widely applied to other fields needing monitoring personnel or article real-time positioning information.
In the embodiment of the invention, an intelligent vehicle management system for a parking lot is established, and the schematic diagram of the parking lot is shown in fig. 1. The process of establishing a parking lot system is as follows:
step 1, installation of Bluetooth base station
Installing 1 access base station at each access of the parking lot, setting numbers and recording coordinates; and then, testing the communication distance of a single Bluetooth base station according to the building condition of the parking lot, and installing a Bluetooth base station at a certain distance according to the principle that each point in the parking lot must be capable of receiving at least 3 Bluetooth base stations. If there is some obstacle such as wall in the room, need to shorten the installation distance, guarantee every place of the parking area can receive at least 3 bluetooth base station signals; and setting the number of each Bluetooth base station and recording the coordinates.
Building a basic map according to building conditions such as entrances and exits, stair lamps and walls of the parking lot and the distribution condition of parking spaces; then, inputting position coordinate information of each access base station and the Bluetooth base station according to the installation records of the Bluetooth base stations in the step 1 to form a complete parking lot map; and storing the map into a background server.
The following describes the devices involved in the parking management system and the information interaction between the devices in the embodiment of the present invention.
Referring to fig. 2, the parking management system in the embodiment of the present invention includes a bluetooth base station 201, a vehicle-mounted bluetooth tag 202, a server 203, and an entrance base station 204.
(1) Bluetooth base station 201
The bluetooth base station 201 is a device which is distributed and installed in the parking lot when the parking lot system is established and is mainly used for sending positioning broadcast information, and each point in the parking lot is ensured to receive at least 3 bluetooth base station signals when the device is installed.
The bluetooth base station 201 includes the following two functions: one is a broadcasting function for transmitting a broadcast signal containing bluetooth base station information in order to locate the vehicle-mounted bluetooth tag 202; the other is a relay function, which is used for relaying the received information of at least three bluetooth base stations sent by the vehicle-mounted bluetooth tag 202 and the corresponding RSSI, until the information is sent to the server 203 for position calculation. And relays the operation instructions of the server 203 to the bluetooth car tag 202.
The Bluetooth base station comprises a Bluetooth module, a controller circuit and a power supply adapting circuit from a hardware entity.
It is easy to understand that the server 203 may be installed in a machine room of a parking lot, may be installed in the entrance base station 204, or may separately install different functions in the machine room of the parking lot and the entrance base station 204. If the server 203 provided in the entrance base station 204 is used to locate the vehicle bluetooth tag 202, and the server 203 for generating the operation command to control the vehicle bluetooth tag 202 is provided in the machine room of the parking lot, it is only necessary to complete the corresponding function, and the present invention is not limited herein.
(2) Bluetooth positioning terminal 202
The bluetooth positioning terminal 202 is a device installed or placed on a vehicle for positioning the vehicle.
The bluetooth positioning terminal has three forms:
the other mode is that ETC electronic tags + bluetooth module's mode is adopted, and wherein ETC electronic tags mainly is responsible for functions such as parking area charge and supplies power to bluetooth module, and bluetooth module mainly realizes bluetooth locate function. Wherein bluetooth module can be synthetic integrative with the ETC electronic tags, also can independently become the form of module.
The second form is a bluetooth module +13.56MHz composite card form. The Bluetooth module mainly realizes the Bluetooth positioning function. The 13.56MHz card is compatible with the 13.56MHz card of the existing parking lot, and is mainly responsible for being compatible with the charging function of the existing parking lot.
The third form is only a bluetooth module, which can be embedded in other devices, such as mobile devices like mobile phones, wearable devices, etc. Besides the positioning function, the Bluetooth can be compatible with the existing Bluetooth parking lot function.
The first form and the second form are called vehicle-mounted Bluetooth tags, and the third form is called a mobile terminal.
(3) Server 203
The server 203 (background server) is mainly used for storing the parking lot map information when the server system map information base is established in the step 2, wherein the parking lot map information includes the position information of each bluetooth base station, calculating the position of the vehicle-mounted bluetooth tag 201, generating an operation instruction, recording the parking information of the parking lot, and establishing a parking information database for managing the parking lot to achieve the purpose of improving the utilization rate.
The user can access the background server 203 through a vehicle inquiry terminal in the parking lot or a mobile phone network and the like to inquire available parking spaces or parking positions of the user's own vehicle, and the server 203 gives an optimal route suggestion according to the current position of the user.
The server 203 may be one server or a cluster of a plurality of servers.
(4) Entrance base station 204
The entrance and exit base station 204 is installed at each entrance and exit of the parking lot, is used for sending entrance signals and exit signals, is connected with the server 203, and can also be connected with the original entrance and exit system of the parking lot, and is used for receiving information sent by the vehicle-mounted bluetooth tag 202 and forwarded by the bluetooth base station 201 and forwarding an operation instruction of the server 203 to the bluetooth base station 201.
The gateway base station 204 includes a bluetooth module, a 2G/3G module, a Wifi module, an embedded system, a power supply, a wired network interface, and the like on a hardware entity.
The following describes in detail the information interaction between the bluetooth base station 201, the onboard bluetooth tag 202, and the server 203 according to the parking process of the vehicle in the parking lot.
Fig. 3 is a parking management method in an embodiment of the present invention, where the method is executed by a vehicle-mounted bluetooth tag, and includes:
301. the vehicle-mounted Bluetooth tag is awakened by an entrance signal sent by an entrance base station arranged at an entrance and an exit of the parking lot;
when a vehicle enters a target parking lot, the vehicle-mounted bluetooth tag 202 is awakened by an entrance signal after detecting the entrance signal sent by the entrance base station 204, and starts to receive a positioning signal sent by the bluetooth base station 201.
302. The vehicle-mounted Bluetooth tag 202 receives positioning signals sent by a plurality of Bluetooth base stations 201 arranged at intervals in a parking lot;
the vehicle-mounted bluetooth tag 202 receives a positioning signal broadcasted by a plurality of bluetooth base stations 201 arranged at intervals in the parking lot as shown in fig. 1, where the positioning signal includes information of the bluetooth base stations 201, for example: bluetooth base station number.
303. The vehicle-mounted Bluetooth tag 202 determines at least three Bluetooth base stations from the plurality of Bluetooth base stations according to the received signal strength indication RSSI of the positioning signal;
the vehicle-mounted bluetooth tag 202 detects Received Signal Strength Indicators (RSSI) of the received positioning signals, finds out three bluetooth base stations 201 with the strongest RSSI, and sends information of the three determined bluetooth base stations 201 with the strongest RSSI and corresponding RSSI to the server 203.
304. The vehicle-mounted bluetooth tag 202 sends the information of at least three bluetooth base stations and the corresponding RSSI to the server through the bluetooth base station relay.
The specific way for the vehicle-mounted bluetooth tag 202 to send the information of the three bluetooth base stations with strongest RSSI and the corresponding RSSI thereof to the server 203 may be:
the vehicle-mounted bluetooth tag 202 sends the information of the three bluetooth base stations with the strongest RSSI and the corresponding RSSI thereof to the surrounding bluetooth base stations 201, where the surrounding bluetooth base stations may be the bluetooth base station 201 with the strongest RSSI, or may be any bluetooth base station 201 that receives the signal, which is not limited herein. After receiving the information, the surrounding bluetooth base stations 201 analyze and recombine the information to form relay information, and then relay the relay information to the entrance and exit base station 204, or relay the relay information to another bluetooth base station 201, and send the relay information to the entrance and exit base station 204 after being relayed by the N bluetooth base stations 201. The entrance/exit base station 204 sends the signal to the server 203 through a 2G/3G signal, a Wifi signal, or a wired network interface.
Optionally, in a specific embodiment, the entrance base station 204 is not necessary to be used as an information relay bridge between the bluetooth base station 201 and the server 203, and the bluetooth base station 201 may directly send the relay information to the server 203 without forwarding through the entrance base station 204. At this time, the positioning function and the function of generating the operation instruction are both completed by the server 203 arranged in the machine room of the parking lot.
After receiving the information of the three bluetooth base stations and the corresponding RSSIs relayed by the vehicle-mounted bluetooth tag 202 through the multiple bluetooth base stations 201, the server 203 calculates the geographic location of the vehicle-mounted bluetooth tag 202 according to the information of the three bluetooth base stations and the corresponding RSSIs, where the geographic location is the geographic location of the vehicle to which the vehicle-mounted bluetooth tag 202 belongs. It should be noted that, from the time when the vehicle enters the parking lot to the time when the vehicle is parked, the server receives the information of the three bluetooth base stations and the RSSI sent by the vehicle-mounted bluetooth tag 202, and calculates the geographical location of the vehicle in real time according to the information of the three bluetooth base stations and the RSSI.
Optionally, the server 203 determines the geographic location of the vehicle in which the onboard bluetooth tag 202 is located, including but not limited to the following two types:
1. RSSI field intensity positioning method
The RSSI field intensity positioning method is to calculate the distances between the Bluetooth equipment (vehicle-mounted Bluetooth tag) and different Bluetooth base stations according to the RSSI of the Bluetooth base stations and an RSSI ranging formula so as to determine the actual positions of the vehicle-mounted Bluetooth tags.
2. Fingerprint positioning method
In the step 2, when the server system map information base is established, a position fingerprint base is established by actually measuring the bluetooth multipath signals of each parking space, and actual measurement data of bluetooth equipment (such as a vehicle-mounted bluetooth tag) to be positioned is compared with the position fingerprint database to determine the actual position of the bluetooth equipment (such as the vehicle-mounted bluetooth tag).
When the server 203 determines that the vehicle is in a parking state, the parking information in the parking information database is updated, including, for example: the parking space corresponding to the geographic position of the vehicle to which the vehicle-mounted bluetooth tag 202 belongs is occupied, and the license plate number, the warehousing time and the like of the vehicle stopped at the parking space.
Optionally, in a specific implementation, the method for determining that the vehicle is in the parking state by the server 203 is as follows: when the error between the specific positions continuously calculated by the vehicle-mounted bluetooth tag 202 or the server 203 within the set time is within the preset threshold range, the vehicle in which the vehicle-mounted bluetooth tag 202 is located is considered to be parked.
In some specific implementations, after the server 203 determines that the vehicle is in a parking state and calculates the parking information of the vehicle in which the bluetooth tag 202 is located, the server 203 sends an operation instruction to the vehicle-mounted bluetooth tag 202, so that the vehicle-mounted bluetooth tag 202 changes the working state and enters a sleep state, and information of three bluetooth base stations with strongest received RSSI signals and the RSSI signals are no longer determined and sent to the bluetooth base station 201.
Specifically, the server 203 sends the operation instruction to the entrance base station 204 through a 2G/3G signal, a Wifi signal or a wired network signal, the entrance base station 204 forwards the operation instruction to the bluetooth base station 201, and the operation instruction is forwarded to the vehicle-mounted bluetooth tag 202 through relay forwarding of the N bluetooth base stations 201, and the vehicle-mounted bluetooth tag 202 enters a dormant state after receiving the operation instruction, and stops positioning, so that the probability of wireless signal collision is reduced, and the capacity of the system is improved.
After the vehicle-mounted bluetooth tag 202 is switched to the dormant state, a timing awakening receiving mode is started, positioning signals are awakened and received at a timing mode, only when the RSSI of the bluetooth base station 201 is obviously changed due to continuous detection of vehicle movement, positioning is started again, and information and RSSI of the three bluetooth base stations with the strongest RSSI signals are sent again. When the server 203 receives the information of the three bluetooth base stations with the strongest RSSI signals and the RSSI signals sent by the vehicle-mounted bluetooth tag 202, the available parking space information in the parking information database is updated, and the parking space is marked as a vacant space.
Optionally, when leaving the parking lot, the vehicle-mounted bluetooth tag 202 stops positioning when receiving the exit signal sent by the entrance base station 204.
Or, if the vehicle-mounted bluetooth tag 202 does not receive the broadcast information of the bluetooth base station 201 within the specified time, the vehicle-mounted bluetooth tag stops positioning, performs a sleep state, and starts a timed wake-up positioning mode so as to be woken up by the entrance base station 204 of the corresponding parking lot when parking next time.
The following describes the bearer format of signals transmitted and received between the bluetooth base station 201, the vehicle-mounted bluetooth tag 202, the server 203, and the entrance base station 204.
Preferably, in practical application, the carrying manner of the ingress signal and the egress signal sent by the ingress and egress base station 204 is an ingress and egress information frame; the positioning signal broadcast by the bluetooth base station 201 is a broadcast information frame; the vehicle-mounted Bluetooth tag 202 sends the information of the three Bluetooth base stations 201 with the strongest RSSI and the corresponding bearing mode of the RSSI as a positioning information frame; the information of the three bluetooth base stations 201 with the strongest RSSI and the corresponding RSSI transferred by the bluetooth base stations 201 are positioning information transfer frames; after receiving the operation command from the server 203, the entrance base station 204 sends a stop frame to the bluetooth base station 201, and the operation command relayed by the bluetooth base station 201 is the stop frame.
It should be noted that, in the embodiment of the present invention, a frame protocol of a broadcast information frame sent by the bluetooth base station 201, a positioning information frame sent by the onboard bluetooth tag 202, a relay positioning information frame sent by the bluetooth base station 201, an entrance and exit information frame sent by the entrance and exit base station 204, and a frame protocol of a transmission stop frame sent by the entrance and exit base station 204 to the bluetooth base station 201 conforms to the BLE specification.
In order to improve efficiency, the embodiment of the invention only uses the broadcast mode of BLE to work and does not perform any connection operation. And in order to reduce the probability of channel collision, the 3 broadcast channels are separately utilized by parameter setting, and the following is arranged:
broadcast channel 37: the vehicle-mounted Bluetooth tag 202 sends a positioning information frame; the bluetooth base station 201 transmits a broadcast information frame; the gateway base station 204 sends a gateway information frame;
broadcast channel 38: the Bluetooth base station 201 sends a relay positioning information frame of the vehicle-mounted Bluetooth label;
a broadcast channel 39; the entrance base station 204 transmits the stop transmission frame, and the bluetooth base station 201 forwards the stop transmission relay frame.
Personalized customization is performed using the AdvData field, and other fields are referred to the BLE protocol, and the definition of AdvData is mainly described below.
The length of the AdvData is 0-31 bytes, the AdvData consists of a plurality of AD structures, only one ADSstructure is defined in the scheme, and the specific protocol is as follows.
(1) Entrance/exit information frame
Transmitted by the ingress and egress base station 204 over the broadcast channel 37. Repeat for 3 frames continuously, 1 time per second.
(2) Broadcast information frame
Transmitted by the bluetooth base station 201 on the broadcast channel 37. Repeat for 3 frames continuously, 1 time per second.
(3) Positioning information frame
Transmitted by the onboard bluetooth tag 202 on the broadcast channel 37.
(4) Positioning information relay frame
After receiving the positioning information frame sent by the vehicle-mounted bluetooth tag 202, the bluetooth base station 201 is recombined into a frame. Transmitted over the broadcast channel 38.
(5) Stop sending frames
After confirming that the vehicle parking positioning information is recorded, the entrance base station 204 sends a command to notify the vehicle-mounted bluetooth tag 202 to stop sending the positioning information frame. Transmitted over the broadcast channel 39.
(6) Stopping transmitting relay frame
The following describes parking and pickup navigation performed by the mobile terminal using the bluetooth base station 201 in the embodiment of the present invention.
The mobile terminal in the embodiment of the invention can comprise terminal equipment such as a smart phone, a tablet personal computer and wearable equipment with a Bluetooth function.
Optionally, in the embodiment of the present invention, the mobile terminal may perform parking navigation and car pickup navigation by installing an Application (APP), and the specific process is as follows:
the mobile terminal downloads the map information of the parking lot through the network, and receives the signal of the bluetooth base station 201 by using the bluetooth module built in the mobile terminal to calculate the current position of the user. And when parking, giving an optimal parking route suggestion according to the current position and the available parking space information. And when the vehicle is taken, the best vehicle taking route suggestion is given according to the current position and the parking position information. The specific parking and picking up processes are as follows:
1. parking
The mobile terminal receives the access information frame of the access base station 204 or the broadcast information frame of the Bluetooth base station, triggers the mobile terminal to download the map and the available parking space information of the parking lot through the network, and displays the map and the available parking space information on the mobile terminal in a map form;
after receiving the broadcast information frames of the plurality of bluetooth base stations 201, the mobile terminal determines the information of the three bluetooth base stations with the strongest RSSI signals and the corresponding RSSI, and calculates to obtain first positioning information, namely the current position of the vehicle according to an RSSI field intensity positioning method or a fingerprint positioning method, wherein the process can be that the vehicle enters a parking lot and the vehicle is calculated in real time in the driving process.
The mobile terminal calculates an optimal parking space (namely a target parking space) in the available parking space information and a target route for reaching the optimal parking space according to the parking lot map, the available parking space information and the first positioning information.
The mobile terminal navigates according to the target route to reach the target parking space, or the mobile terminal receives the broadcast information frame of the bluetooth base station 201 all the time, updates the first positioning information in real time, and realizes real-time parking navigation until the user parks the vehicle.
After the user parks the vehicle, the mobile terminal records the parking position so as to facilitate subsequent reverse vehicle searching.
2. Get car
When a user needs to get a car, the APP can be opened by the mobile terminal at any time, and the parking position and parking time information of the user can be searched according to the parking position recorded by the mobile terminal or through a network access server. When the user returns to the parking lot, the mobile terminal automatically detects the broadcast information frame of the bluetooth base station 201, calculates the geographical position (namely the current geographical position) of the mobile terminal by an RSSI field intensity positioning method or a fingerprint method, calculates a vehicle taking target route according to the geographical position, the parking position and a parking lot map of the mobile terminal, and navigates according to the vehicle taking target route so as to guide to the parking position.
It should be noted that the mobile terminal can continuously receive the signal of the bluetooth base station 201, update the current location information in real time, and implement dynamic vehicle-finding navigation.
In practical applications, the mobile terminal may be a bluetooth device installed or placed on a vehicle as described in the above embodiments, and may also broadly include a terminal device having a bluetooth 4.0BLE function.
If the positioning is performed by the terminal device with the bluetooth 4.0BLE function, optionally, the mobile terminal itself may calculate the position information of the vehicle according to the information of the plurality of bluetooth base stations and the RSSI, and then directly send the position information of the vehicle to the server 203. Optionally, if the method is adopted, if the mobile terminal has a sensor (e.g., an acceleration sensor, a gyroscope, etc.) capable of sensing that the vehicle is in the parking state, the mobile terminal may also determine that the vehicle is in the parking state, and after the determination, the calculated position information of the vehicle is sent to the server.
In the embodiment of the invention, a plurality of Bluetooth base stations 201 are installed in a parking lot, so that a vehicle-mounted Bluetooth tag 202 can simultaneously receive broadcast information frames of the plurality of Bluetooth base stations 202, at least three Bluetooth base stations 201 are determined from the plurality of Bluetooth base stations 201 according to Received Signal Strength Indication (RSSI) of the broadcast information frames, the information and RSSI of the determined at least three Bluetooth base stations 201 are sent to a server 203, the server 203 determines the position information of a vehicle where the vehicle-mounted Bluetooth tag 202 is located according to the information of the at least three Bluetooth base stations and the corresponding RSSI, and when the server 203 determines that the vehicle is in a parking state, the parking information of the parking lot is updated. Therefore, the Bluetooth 4.0BLE technology can be utilized, the vehicle can be conveniently and efficiently positioned and managed, and the Bluetooth 4.0BLE vehicle positioning management system has the advantages of low cost, high positioning longitude, simplicity in wiring, high automation degree and the like.
Meanwhile, the mobile terminal in the embodiment of the invention can perform parking and car taking navigation by using the Bluetooth base station 201, thereby improving the user experience of parking lot navigation in a network-free state.
The following describes a vehicle-mounted bluetooth tag, a bluetooth base station, an entrance base station, and a server in the embodiment of the present invention from the perspective of function introduction.
With reference to fig. 4, the vehicle bluetooth tag 4 in the embodiment of the present invention includes:
the activation module 401 is configured to receive an entry signal sent by an entry and exit base station arranged at an entry and exit of a parking lot, and wake up the vehicle-mounted bluetooth tag; a receiving module 402, configured to receive positioning signals sent by multiple bluetooth base stations 201 arranged at intervals in a parking lot, where the positioning signals include information of the bluetooth base stations 201;
a positioning information determining module 403, configured to determine at least three bluetooth base stations from the plurality of bluetooth base stations according to a received signal strength indicator RSSI of the positioning signal;
and the positioning information sending module 404 is configured to send the information of the at least three bluetooth base stations and the corresponding RSSIs to the server 203 through the bluetooth base station 201 in a relay manner, so that the server calculates parking position information of the vehicle where the vehicle-mounted bluetooth tag is located according to the information of the at least three bluetooth base stations and the corresponding RSSIs.
Optionally, the receiving module 402 is further configured to receive an operation instruction sent by the server 203, and change the working state according to the operation instruction, where the operation instruction is generated by the server 203 and then relayed to the vehicle-mounted bluetooth tag 202 through the bluetooth base station 201.
In addition, the vehicle-mounted bluetooth tag 4 has all or part of the functions of the vehicle-mounted bluetooth tag 202, which is not described herein in detail.
The interaction process among the units of the vehicle-mounted bluetooth tag 4 in the embodiment of the present invention may refer to the interaction process in the embodiment shown in fig. 3, and details are not described here.
It should be noted that, optionally, in a hardware entity level, the receiving module 402 in the vehicle-mounted bluetooth tag 4 may correspond to a receiver, the processor specifically executes the steps executed by the activating module 401 and the positioning information determining module 403, and the positioning information sending module 404 specifically corresponds to a transmitter.
Referring to fig. 5, a bluetooth base station 5 in the embodiment of the present invention includes:
the broadcasting module 501 is configured to broadcast a positioning signal of the vehicle, where the positioning signal is used to enable the vehicle-mounted bluetooth tag to determine at least three bluetooth base stations from a plurality of bluetooth base stations according to a received signal strength indicator RSSI of the positioning signal;
a receiving module 502, configured to receive information of at least three bluetooth base stations and corresponding RSSIs sent by a vehicle-mounted bluetooth tag;
the relay forwarding module 503 is configured to forward the information of the at least three bluetooth base stations and the corresponding RSSIs to the server, so that the server calculates parking position information of the vehicle where the vehicle-mounted bluetooth tag is located according to the information of the at least three bluetooth base stations and the corresponding RSSIs.
In addition, the bluetooth base station 5 further has all or part of the functions of the bluetooth base station 201, which is not described herein in detail.
The interaction process between the units of the bluetooth base station 5 in the embodiment of the present invention may refer to the interaction process in the embodiment shown in fig. 3, and details thereof are not described here.
Referring to fig. 6, the entrance base station 6 in the embodiment of the present invention includes:
the system comprises a sending module 601, a receiving module and a processing module, wherein the sending module 601 is used for sending an entrance signal, the entrance signal is used for awakening a vehicle-mounted Bluetooth tag entering a parking lot so that the vehicle-mounted Bluetooth tag starts to receive positioning signals broadcasted by a plurality of Bluetooth base stations, information of at least three Bluetooth base stations and corresponding RSSI (received signal strength indicator) are determined from the plurality of Bluetooth base stations according to RSSI (received signal strength indicator) of the positioning signals, and the information of the at least three Bluetooth base stations and the corresponding RSSI are relayed and forwarded through the Bluetooth base;
a receiving module 602, configured to receive information of at least three bluetooth base stations relayed by the bluetooth base stations and corresponding RSSIs;
the sending module 603 is further configured to send the information of the at least three bluetooth base stations and the corresponding RSSIs to the server, so that the server calculates parking position information of the vehicle where the vehicle-mounted bluetooth tag is located according to the information of the at least three bluetooth base stations and the corresponding RSSIs.
In addition, the entrance base station 6 also has all or part of the functions of the entrance base station 204, which are not described herein in detail.
The interaction process between the units of the bluetooth base station 6 in the embodiment of the present invention may refer to the interaction process in the embodiment shown in fig. 3, and details thereof are not described here.
Therefore, the embodiment of the invention can conveniently and efficiently position and manage the vehicle by using the Bluetooth technology, and has the advantages of low cost, high positioning longitude, simple wiring, high automation degree and the like.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A parking management method, comprising:
the method comprises the following steps that a Bluetooth positioning terminal is awakened by an entrance signal sent by an entrance base station arranged at an entrance and an exit of a parking lot, wherein the Bluetooth positioning terminal is a vehicle-mounted Bluetooth tag;
the Bluetooth positioning terminal receives positioning signals sent by a plurality of Bluetooth base stations arranged in a parking lot at intervals, wherein the positioning signals comprise information of the Bluetooth base stations;
the Bluetooth positioning terminal determines at least three Bluetooth base stations from a plurality of Bluetooth base stations according to the Received Signal Strength Indication (RSSI) of the positioning signal;
the Bluetooth positioning terminal sends the information of the at least three Bluetooth base stations and the corresponding RSSI to a server through the Bluetooth base station relay in real time, so that the server calculates the parking position information of the vehicle where the Bluetooth positioning terminal is located in real time according to the information of the at least three Bluetooth base stations and the corresponding RSSIs, and the parking position information of the vehicle where the Bluetooth positioning terminal is located is used for calculating to obtain an optimal parking space and a target route for reaching the optimal parking space;
the Bluetooth positioning terminal records the optimal parking space;
the Bluetooth positioning terminal automatically detects a broadcast information frame of the Bluetooth base station, and calculates the geographical position of the Bluetooth positioning terminal in real time by an RSSI field intensity positioning method or a fingerprint method, wherein the geographical position of the Bluetooth positioning terminal and the optimal parking space obtained by real-time calculation are used for vehicle searching and navigation;
after the vehicle is in a parked state, the method further comprises:
the vehicle-mounted Bluetooth tag receives an operation instruction sent by the server, enters a dormant state according to the operation instruction, and starts a timing awakening receiving mode, and the operation instruction is generated by the server and then forwarded to the vehicle-mounted Bluetooth tag through the Bluetooth base station relay.
2. The method according to claim 1, wherein the bluetooth positioning terminal is a mobile terminal, and the method further comprises:
after receiving the positioning signal of the Bluetooth base station or the entrance signal of the access base station, the mobile terminal acquires available parking space information and a parking lot map of a parking lot from the server through a wireless network;
the mobile terminal calculates to obtain first positioning information according to the information of at least three Bluetooth base stations and corresponding RSSI (received signal strength indicator);
the mobile terminal calculates a parking target route according to the parking lot map, the available parking space information and the first positioning information; navigating according to the parking target route to guide to the target parking position;
after the step that the mobile terminal navigates according to the parking target route so as to guide to the target parking space position, the method further comprises the following steps:
the mobile terminal saves the target parking space position;
when the vehicle is taken out, the mobile terminal calculates second positioning information of the mobile terminal according to the information of at least three Bluetooth base stations and corresponding RSSI (received signal strength indicator);
the mobile terminal calculates a vehicle taking target route according to the target parking space position, the second positioning information of the mobile terminal and the parking lot map;
and the mobile terminal navigates according to the vehicle taking target route so as to guide to the target parking space position.
3. The method according to claim 1, wherein when the bluetooth positioning terminal is a vehicle-mounted bluetooth tag, the information and corresponding RSSIs of the at least three bluetooth base stations sent by the vehicle-mounted bluetooth tag, the positioning signal sent by the bluetooth base station, the entry signal sent by the entry and exit base stations, the information and corresponding RSSIs of the at least three bluetooth base stations relayed by the bluetooth base stations, and the operation command relayed by the bluetooth base stations all use broadcast signals;
when the Bluetooth positioning terminal is a mobile terminal, the positioning signal sent by the Bluetooth base station and the entrance signal sent by the entrance base station adopt broadcast signals.
4. The method of claim 3, wherein the step of applying the coating comprises applying a coating to the substrate
The vehicle-mounted Bluetooth label comprises information and RSSI of three Bluetooth base stations sent by the vehicle-mounted Bluetooth label, positioning signals sent by the Bluetooth base stations and inlet signals sent by the access base stations all adopt a first broadcast channel;
the information and RSSI of the three Bluetooth base stations transmitted by the Bluetooth base station relay adopt a second broadcast channel;
and the operation instruction sent by the Bluetooth base station relay adopts a third broadcast channel.
5. An on-vehicle bluetooth tag, comprising:
the activation module is used for receiving an entrance signal sent by an entrance base station arranged at an entrance of a parking lot and awakening the vehicle-mounted Bluetooth tag;
the receiving module is used for receiving positioning signals sent by a plurality of Bluetooth base stations arranged in a parking lot at intervals, and the positioning signals comprise information of the Bluetooth base stations;
a positioning information determining module, configured to determine at least three bluetooth base stations from the plurality of bluetooth base stations according to a received signal strength indicator RSSI of the positioning signal;
the positioning information sending module is used for sending the information of the at least three Bluetooth base stations and the corresponding RSSI to a server through the Bluetooth base station relay in real time, so that the server calculates the parking position information of the vehicle where the vehicle-mounted Bluetooth tag is located in real time according to the information of the at least three Bluetooth base stations and the corresponding RSSIs, and the parking position information of the vehicle where the vehicle-mounted Bluetooth tag is located is used for calculating to obtain an optimal parking space and a target route for reaching the optimal parking space;
the vehicle-mounted Bluetooth tag records the optimal parking space;
the vehicle-mounted Bluetooth tag automatically detects a broadcast information frame of the Bluetooth base station, and calculates the geographic position of the vehicle-mounted Bluetooth tag in real time through an RSSI field intensity positioning method or a fingerprint method, wherein the geographic position of the vehicle-mounted Bluetooth tag obtained through real-time calculation is used for vehicle searching navigation;
the receiving module is further used for receiving an operation instruction sent by the server, entering a dormant state according to the operation instruction, and starting a timing awakening receiving mode, wherein the operation instruction is generated by the server and then forwarded to the vehicle-mounted Bluetooth tag through the Bluetooth base station relay.
6. A bluetooth base station, comprising:
the system comprises a broadcasting module, a receiving module and a processing module, wherein the broadcasting module is used for broadcasting a positioning signal of the broadcasting module, and the positioning signal is used for enabling a vehicle-mounted Bluetooth tag to determine at least three Bluetooth base stations from a plurality of Bluetooth base stations according to the received signal strength indication RSSI of the positioning signal;
the receiving module is used for receiving the information of the at least three Bluetooth base stations and the corresponding RSSI (received signal strength indicator) sent by the vehicle-mounted Bluetooth label;
the relay forwarding module is used for forwarding the information of the at least three Bluetooth base stations and the corresponding RSSI received by the receiving module to the server in real time, so that the server calculates the parking position information of the vehicle where the vehicle-mounted Bluetooth label is located in real time according to the information of the at least three Bluetooth base stations and the corresponding RSSIs, and the parking position information of the vehicle where the vehicle-mounted Bluetooth label is located is used for calculating to obtain an optimal parking space and a target route for reaching the optimal parking space;
the broadcast module is further configured to send a broadcast information frame to the vehicle-mounted bluetooth tag, so that the vehicle-mounted bluetooth tag calculates the geographic position of the vehicle-mounted bluetooth tag in real time through an RSSI field intensity positioning method or a fingerprint method after detecting the broadcast information frame, and the geographic position of the vehicle-mounted bluetooth tag and the optimal parking space obtained through real-time calculation are used for vehicle finding navigation;
the relay forwarding module is further configured to forward the operation instruction generated by the server to the vehicle-mounted bluetooth tag in a relay manner, so that the vehicle-mounted bluetooth tag enters a sleep state according to the operation instruction, and a timed wake-up receiving mode is started.
7. An access base station, comprising:
the system comprises a sending module, a receiving module and a sending module, wherein the sending module is used for sending an entrance signal, the entrance signal is used for awakening a vehicle-mounted Bluetooth tag entering a parking lot so that the vehicle-mounted Bluetooth tag starts to receive positioning signals broadcasted by a plurality of Bluetooth base stations, determining information of at least three Bluetooth base stations and corresponding RSSI (received signal strength indicator) from the Bluetooth base stations according to RSSI (received signal strength indicator) of the positioning signals, and relaying and forwarding the information of the at least three Bluetooth base stations and the corresponding RSSI through the Bluetooth base stations;
the receiving module is used for receiving the information of the at least three Bluetooth base stations relayed by the Bluetooth base stations and the corresponding RSSI;
the transmitting module is further used for transmitting the information of the at least three Bluetooth base stations and the corresponding RSSI to a server in real time, so that the server calculates the parking position information of the vehicle where the vehicle-mounted Bluetooth tag is located in real time according to the information of the at least three Bluetooth base stations and the corresponding RSSIs, and the parking position information of the vehicle where the vehicle-mounted Bluetooth tag is located is used for calculating to obtain an optimal parking space and a target route for reaching the optimal parking space;
the transmitting module is further configured to transmit the optimal parking space to the vehicle-mounted bluetooth tag, the geographic position of the vehicle-mounted bluetooth tag and the optimal parking space obtained through real-time calculation are used for vehicle finding navigation, and the geographic position of the vehicle-mounted bluetooth tag obtained through real-time calculation is obtained through real-time calculation through an RSSI (received signal strength indicator) field intensity positioning method or a fingerprint method, wherein the broadcast information frame of the bluetooth base station is automatically detected by the vehicle-mounted bluetooth tag;
the sending module is further configured to send the operation instruction generated by the server to the bluetooth base station, so that the bluetooth base station relays the operation instruction generated by the server to the vehicle-mounted bluetooth tag, and the vehicle-mounted bluetooth tag enters a sleep state according to the operation instruction and starts a timed wakeup receiving mode.
8. A parking management system, characterized in that the system comprises:
at least three bluetooth base stations according to claim 6, at least one vehicle bluetooth tag according to claim 5, at least one entrance base station according to claim 7 and a server.
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| CN201510920208.XA CN105554878B (en) | 2015-12-11 | 2015-12-11 | Parking management method, vehicle-mounted Bluetooth label, base station and system |
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| CN201510920208.XA CN105554878B (en) | 2015-12-11 | 2015-12-11 | Parking management method, vehicle-mounted Bluetooth label, base station and system |
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