CN110716174A - Vehicle lock, vehicle and vehicle positioning method - Google Patents
Vehicle lock, vehicle and vehicle positioning method Download PDFInfo
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- CN110716174A CN110716174A CN201910939119.8A CN201910939119A CN110716174A CN 110716174 A CN110716174 A CN 110716174A CN 201910939119 A CN201910939119 A CN 201910939119A CN 110716174 A CN110716174 A CN 110716174A
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- wifi
- wifi hotspot
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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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
- H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination
Abstract
The invention discloses a vehicle lock, a vehicle and a vehicle positioning method. The vehicle lock comprises a Wifi module for positioning, a processor and a memory; the memory stores instructions that when executed by the processor implement the steps of: starting the Wifi module to scan Wifi hotspots to obtain broadcast signals of the Wifi hotspots, wherein the broadcast signals of the Wifi hotspots comprise physical addresses of the Wifi hotspots; acquiring a signal intensity value of the broadcast signal of the Wifi hotspot; and sending the physical address of the Wifi hotspot and the corresponding signal intensity value to a server, so that the server can determine the geographical position of the Wifi hotspot according to the physical address of the Wifi hotspot, and determining the geographical position of the vehicle lock based on the geographical position of the Wifi hotspot and the corresponding signal intensity value.
Description
Technical Field
The invention relates to the technical field of positioning, in particular to a vehicle lock, a vehicle and a vehicle positioning method.
Background
The shared economy has become a trend of the times, and various shared vehicles such as public bicycles funded by governments, shared bicycles operated by enterprises, tricycles, electric vehicles, automobiles, and the like have appeared in life. A user uses a shared vehicle through a terminal (for example, a mobile phone) loaded with an APP (application).
For shared vehicles, it is often necessary to determine where the vehicle is located during routine operations. For example, operators need to drop/transfer vehicles according to the distribution of existing vehicles, determine the location of a faulty vehicle for maintenance, perform regulatory management on parking behaviors of users according to the vehicle location, and the like. The vehicle can be positioned directly or indirectly by positioning a user terminal of a vehicle user.
Typically, the positioning of the vehicle is mainly based on GNSS positioning. The GNSS is generally called Global Navigation Satellite System (Global Navigation Satellite System), and generally refers to all Satellite Navigation systems including Global, regional, and enhanced Satellite Navigation systems, such as GPS in the united states, Glonass in russia, Galileo in europe, and so on.
Ideally, GNSS positioning is reliable and accurate. However, because the environment of each area is different, factors such as indoor and high buildings around the area may cause large positioning errors, too long positioning time, and even failure of positioning. Therefore, a new technical solution for positioning the vehicle is needed.
Disclosure of Invention
It is an object of the present invention to provide a new solution for vehicle positioning.
According to a first aspect of the invention, a vehicle lock is provided, which comprises a Wifi module for positioning, a processor and a memory; the memory stores instructions that when executed by the processor implement the steps of:
starting the Wifi module to scan Wifi hotspots to obtain broadcast signals of the Wifi hotspots, wherein the broadcast signals of the Wifi hotspots comprise physical addresses of the Wifi hotspots;
acquiring a signal intensity value of the broadcast signal of the Wifi hotspot;
and sending the physical address of the Wifi hotspot and the corresponding signal intensity value to a server, so that the server can determine the geographical position of the Wifi hotspot according to the physical address of the Wifi hotspot, and determining the geographical position of the vehicle lock based on the geographical position of the Wifi hotspot and the corresponding signal intensity value.
Preferably, the number of Wifi hotspots scanned by the Wifi module is multiple;
the sending the physical address of the Wifi hotspot and the corresponding signal strength value to a server includes:
selecting n Wifi hotspots with the strongest signal intensity values from the plurality of Wifi hotspots, wherein n is an integer greater than or equal to 1;
and sending the physical addresses of the n selected Wifi hotspots and the corresponding signal intensity values to the server.
Preferably, the broadcast signal of the Wifi hotspot further includes a service set identifier SSID of the Wifi hotspot;
the sending the physical address of the Wifi hotspot and the corresponding signal strength value to a server includes:
and sending the physical address, SSID and the corresponding signal strength value of the Wifi hotspot to the server.
Preferably, the vehicle lock further comprises a base station positioning module and a global navigation satellite system GNSS positioning module.
Preferably, the instructions when executed by the processor implement the steps of:
and acquiring the geographic position positioned by the base station positioning module and the geographic position positioned by the GNSS positioning module, and sending the geographic positions to the server, so that the server determines the geographic position of the lock by using the geographic position determined based on the Wifi hotspot, the geographic position positioned by the base station positioning module and the geographic position positioned by the GNSS positioning module.
According to a second aspect of the invention, there is provided a vehicle having a vehicle lock as provided in the first aspect of the invention.
According to a third aspect of the present invention, there is provided a positioning method of a vehicle having a Wifi module for positioning, the method comprising:
starting the Wifi module to scan Wifi hotspots to obtain broadcast signals of the Wifi hotspots, wherein the broadcast signals of the Wifi hotspots comprise physical addresses of the Wifi hotspots;
acquiring a signal intensity value of the broadcast signal of the Wifi hotspot;
sending the physical address of the Wifi hotspot and the corresponding signal intensity value to a server; the server determines the geographical position of the Wifi hotspot according to the physical address of the Wifi hotspot, and determines the geographical position of the vehicle lock based on the geographical position of the Wifi hotspot and the corresponding signal intensity value.
Preferably, the number of Wifi hotspots scanned by the Wifi module is multiple;
the sending the physical address of the Wifi hotspot and the corresponding signal strength value to a server includes:
selecting n Wifi hotspots with the strongest signal intensity values from the plurality of Wifi hotspots, wherein n is an integer greater than or equal to 1;
and sending the physical addresses of the n selected Wifi hotspots and the corresponding signal intensity values to the server.
Preferably, the broadcast signal of the Wifi hotspot further includes a service set identifier SSID of the Wifi hotspot;
the sending the physical address of the Wifi hotspot and the corresponding signal strength value to a server includes:
and sending the physical address, SSID and the corresponding signal strength value of the Wifi hotspot to the server.
Preferably, the vehicle lock further comprises a base station positioning module and a global navigation satellite system GNSS positioning module;
the method further comprises the following steps:
and acquiring the geographic position positioned by the base station positioning module and the geographic position positioned by the GNSS positioning module, and sending the geographic positions to the server, so that the server determines the geographic position of the lock by using the geographic position determined based on the Wifi hotspot, the geographic position positioned by the base station positioning module and the geographic position positioned by the GNSS positioning module.
According to one embodiment of the disclosure, the geographical position of the vehicle is determined according to the MAC address and the corresponding signal strength value of the broadcasting signal of the Wifi hotspot, so that the accuracy and reliability of positioning the vehicle can be improved. The embodiment of the invention provides the Wifi hotspot database, when the vehicle is positioned, the vehicle is positioned by the Wifi hotspot database in the environment by utilizing the existing Wifi hotspot, and the positioning cost is lower as a whole.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 illustrates a block diagram of a vehicle system that may be used to implement an embodiment of the invention;
FIG. 2 shows a block diagram of a vehicle lock of a first embodiment of the present invention;
fig. 3 shows a block diagram of a vehicle of a second embodiment of the invention;
fig. 4 shows a flowchart of a positioning method of a vehicle of a third embodiment of the present invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
< vehicle System >
As shown in fig. 1, the vehicle system 100 includes a server 1000, a user terminal 2000, a vehicle 3000, and a network 4000.
The server 1000 is a service point that provides processing, databases, and communications facilities. The server 1000 may be a unitary server or a distributed server across multiple computers or computer data centers. The server may be of various types, such as, but not limited to, a web server, a news server, a mail server, a message server, an advertisement server, a file server, an application server, an interaction server, a database server, or a proxy server. In some embodiments, each server may include hardware, software, or embedded logic components or a combination of two or more such components for performing the appropriate functions supported or implemented by the server. For example, a server, such as a blade server, a cloud server, etc., or may be a server group consisting of a plurality of servers, which may include one or more of the above types of servers, etc.
In one example, the server 1000 may be as shown in fig. 1, including a processor 1100, a memory 1200, an interface device 1300, a communication device 1400, a display device 1500, an input device 1600. Although the server may also include speakers, microphones, etc., these components are not relevant to the present invention and are omitted here. The processor 1100 may be, for example, a central processing unit CPU, a microprocessor MCU, or the like. The memory 1200 includes, for example, a ROM (read only memory), a RAM (random access memory), a nonvolatile memory such as a hard disk, and the like. The interface device 1300 includes, for example, a USB interface, a serial interface, an infrared interface, and the like. Communication device 1400 is capable of wired or wireless communication, for example. The display device 1500 is, for example, a liquid crystal display, an LED display touch panel, or the like. The input device 1600 may include, for example, a touch screen, a keyboard, and the like.
In the present embodiment, the user terminal 2000 is an electronic device having a communication function and a service processing function. The user terminal 2000 may be a mobile terminal held by a user using a vehicle, such as a mobile phone, a laptop, a tablet computer, a palmtop computer, and the like, and has a corresponding APP, through which the user uses the vehicle.
As shown in fig. 1, the user terminal 2000 may include a processor 2100, a memory 2200, an interface device 2300, a communication device 2400, a display device 2500, an input device 2600, an output device 2700, a camera device 2800, and the like. The processor 2100 may be a central processing unit CPU, a microprocessor MCU, or the like. The memory 2200 includes, for example, a ROM (read only memory), a RAM (random access memory), a nonvolatile memory such as a hard disk, and the like. The interface device 2300 includes, for example, a USB interface, a headphone interface, and the like. The communication device 2400 is capable of wired or wireless communication, for example, and includes a Wifi communication module, a bluetooth communication module, a 2G/3G/4G communication module, and the like. The display device 2500 is, for example, a liquid crystal display panel, a touch panel, or the like. The input device 2600 may include, for example, a touch screen, a keyboard, or a microphone. The output device 2700 is for outputting information, and may be, for example, a speaker for outputting voice information to a user. The image pickup device 2800 is used for image pickup of acquisition information, and is, for example, a camera or the like. The user terminal 2000 may include a positioning device (not shown), for example, a GNSS positioning module such as a GPS positioning module, a beidou positioning module, etc.
The vehicle 3000 is any vehicle that can give the right to share the use by different users in time or separately, for example, a shared bicycle, a shared moped, a shared electric vehicle, a shared vehicle, and the like. The vehicle 3000 may be a bicycle, a tricycle, an electric scooter, a motorcycle, a four-wheeled passenger vehicle, or the like.
As shown in fig. 1, vehicle 3000 may include a processor 3100, a memory 3200, an interface device 3300, a communication device 3400, an output device 3500, an input device 3600, a positioning device 3700, sensors 3800, and so forth. The processor 3100 may be a central processing unit CPU, a microprocessor MCU, or the like. The memory 3200 includes, for example, a ROM (read only memory), a RAM (random access memory), a nonvolatile memory such as a hard disk, and the like. The interface 3300 includes, for example, a USB interface, a headphone interface, and the like. The communication device 3400 is capable of wired or wireless communication, for example, and includes a Wifi communication module, a bluetooth communication module, a 2G/3G/4G communication module, and the like, for example. The output device 3500 may be, for example, a device that outputs a signal, may be a display device such as a liquid crystal display panel or a touch panel, or may be a speaker or the like that outputs voice information or the like. The input device 3600 may include, for example, a touch panel, a keyboard, or the like, and may input voice information through a microphone. The positioning device 3700 is used to provide positioning function, and may include a GNSS positioning module such as a GPS positioning module and a beidou positioning module. The sensor 3800 is used for acquiring vehicle attitude information, and may be, for example, an accelerometer, a gyroscope, or a three-axis, six-axis, nine-axis micro-electro-mechanical system (MEMS), or the like.
The network 4000 may be a wireless communication network or a wired communication network, and may be a local area network or a wide area network. In the vehicle system shown in fig. 1, a vehicle 3000 and a server 1000, and a user terminal 2000 and the server 1000 can communicate with each other through a network 4000. The vehicle 3000 may be the same as the server 1000, or the network 4000 through which the user terminal 2000 communicates with the server 1000 may be different from the server.
It should be understood that although fig. 1 shows only one server 1000, user terminal 2000, vehicle 3000, it is not meant to limit the corresponding number, and multiple servers 1000, user terminals 2000, vehicles 3000 may be included in the vehicle system 100.
Taking the vehicle 3000 as an example of a shared bicycle, the vehicle system 100 is a shared bicycle system. The server 1000 is used to provide all the functionality necessary to support shared bicycle use. The user terminal 2000 may be a mobile phone on which a shared bicycle application is installed, and the shared bicycle application may help a user to acquire a corresponding function using the vehicle 3000, and the like.
The vehicle system 100 shown in FIG. 1 is illustrative only and is not intended to limit the invention, its application, or uses in any way. Although a plurality of devices are shown in fig. 1 for the server 1000, the user terminal 2000, and the vehicle 3000, the present invention may relate to only some of the devices.
In an embodiment of the present invention, the memory 1200 of the server 1000 is used for storing instructions for controlling the processor 1100 to operate so as to execute the part of the vehicle positioning method provided by the embodiment of the present invention, which is executed by the server. In an embodiment of the present invention, the memory 2200 of the user terminal 2000 is configured to store instructions for controlling the processor 2100 to operate to execute a portion of the vehicle positioning method provided by the embodiment of the present invention, where the portion is executed by the user terminal. The memory 3200 of the vehicle 3000 is used to store instructions for controlling the processor 3100 to operate to perform the portions of the vehicle localization methods provided by embodiments of the invention that are performed by the vehicle.
Those skilled in the art can design instructions in accordance with the teachings of the present invention. How the instructions control the operation of the processor is well known in the art and will not be described in detail herein.
< first embodiment >
In the present embodiment, a vehicle lock 200 is provided, as shown in fig. 2, and includes a Wifi module 210 for positioning, a processor 220, and a memory 230. The vehicle lock is also provided with a remote wireless communication module, such as a 2G/3G/4G/5G module and the like, and the vehicle lock is communicated with the server through the remote wireless communication module.
In this embodiment, the Wifi module 210, the processor 220, and the memory 230 for positioning may be integrated into one physical entity, or each part may exist separately physically, or two or more parts are integrated into one physical entity.
The memory 230 stores instructions that when executed by the processor 220 perform the steps of:
and starting the Wifi module 210 to scan the Wifi hotspot to obtain a broadcast signal of the Wifi hotspot.
Specifically, the Wifi module 210 of the vehicle lock 200 is started to continuously broadcast the signal in the Wifi hotspot opening state, and scans surrounding Wifi hotspots to obtain the broadcast signal of the Wifi hotspot.
The broadcast signal of the Wifi hotspot includes a physical address of the Wifi hotspot, that is, a MAC address. MAC (Media Access Control) addresses are typically written at the time of production of the network device, and each MAC address is globally unique.
The broadcast signal of the Wifi hotspot may further include a service set identifier SSID of the Wifi hotspot. The SSID (Service Set Identifier) is an identity of the Wifi hotspot, and may be, for example, a name of a wireless local area network accessed by the Wifi hotspot.
In this embodiment, a pre-established Wifi hotspot database is further provided, and specifically, the server side is pre-established with a Wifi hotspot database including a large amount of Wifi hotspot data, and the geographic location, the MAC address, and the SSID identity of each Wifi hotspot are stored in the Wifi hotspot database. And the server side can also regularly update and maintain the Wifi hotspot database according to the actual situation of the Wifi hotspot.
After the Wifi module 210 of the vehicle lock is started to scan the Wifi hotspot, the geographic position of the corresponding Wifi hotspot can be inquired according to the obtained MAC address of the Wifi hotspot through the Wifi hotspot database, so that the vehicle lock is positioned. In addition, the Wifi hotspot database is updated and maintained regularly according to the actual situation of the Wifi hotspot, so that the accuracy of positioning the Wifi hotspot used for a long time can be improved.
The Wifi module 210 is started to scan the Wifi hotspot, obtain the broadcast signal of the Wifi hotspot and determine the signal strength value of the broadcast signal of the Wifi hotspot. The broadcast signal of the Wifi hotspot is an electromagnetic wave signal, and the signal intensity of the electromagnetic wave signal is attenuated along with the increase of the propagation distance. The signal intensity value of the Wifi hotspot can be used for reflecting the distance between the vehicle lock and the Wifi hotspot.
When the Wifi module of the vehicle lock scans the broadcast Signal of the Wifi hotspot, a corresponding Signal Strength value rssi (received Signal Strength indication) can be obtained according to the Signal power of the received Signal. Since there is a very mature algorithm in terms of the obtained signal strength value RSSI, and the embodiment of the present invention is applicable to any algorithm capable of obtaining the received signal strength value RSSI, it is not limited herein.
After the signal intensity value of the broadcast signal of the Wifi hotspot is obtained, the vehicle lock sends the MAC address of the Wifi hotspot and the corresponding signal intensity value to the server, so that the server can determine the geographic position of the Wifi hotspot according to the MAC address of the Wifi hotspot, and the geographic position of the vehicle lock is determined based on the geographic position of the Wifi hotspot and the corresponding signal intensity value. The car lock can send the MAC address of the Wifi hotspot and the corresponding signal strength value to the server through the remote wireless communication module.
In this embodiment, the MAC address of the Wifi hotspot reflects the unique network identifier of the Wifi hotspot, and the geographic location of the Wifi hotspot scanned by the vehicle lock can be found according to the MAC address of the Wifi hotspot. A signal strength value reflecting a distance between the vehicle lock scanning the Wifi hotspot and the Wifi hotspot. Based on the MAC address of the Wifi hotspot and the corresponding signal intensity value, the geographic position of the vehicle lock to be positioned can be determined.
According to the vehicle lock disclosed by the embodiment of the invention, the Wifi module of the vehicle lock scans the Wifi hotspot to obtain the broadcast signal of the Wifi hotspot, and the broadcast signal of the Wifi hotspot is uploaded to the server. The server can determine the geographic position of the Wifi hotspot and the distance between the vehicle lock to be positioned and the Wifi hotspot according to the MAC address of the broadcast signal of the Wifi hotspot and the corresponding signal intensity value, so that the geographic position of the vehicle lock to be positioned is determined based on the geographic position of the Wifi hotspot and the distance between the vehicle lock to be positioned and the Wifi hotspot.
In the embodiment of the invention, the geographical position of the vehicle is determined according to the MAC address of the broadcasting signal of the Wifi hotspot and the corresponding signal intensity value, so that the accuracy and reliability of positioning the vehicle can be improved. The embodiment of the invention provides the Wifi hotspot database, when the vehicle is positioned, the vehicle is positioned by the Wifi hotspot database in the environment by utilizing the existing Wifi hotspot, and the positioning cost is lower as a whole.
In one example, there are multiple Wifi hotspots scanned by Wifi module 210;
in this example, sending the MAC address of the Wifi hotspot and the corresponding signal strength value to the server includes:
selecting n Wifi hotspots with the strongest signal intensity values from the plurality of Wifi hotspots, wherein n is an integer greater than or equal to 1;
and sending the selected MAC addresses of the n Wifi hotspots and the corresponding signal strength values to a server.
Specifically, when the vehicle lock scans a plurality of Wifi hotspots and obtains broadcast signals of the Wifi hotspots, the Wifi hotspots are sorted according to the magnitude of the signal intensity value, and n Wifi hotspots with the strongest signal intensity values are selected. For example, n may be 1, or n may be 3, or n may be 15.
In this embodiment, based on the RSSI, the distance between the lock scanning the Wifi hotspot and the Wifi hotspot is determined, so as to locate the vehicle having the lock.
In a more specific example, the vehicle is located through 1 Wifi hotspot. Searching the geographical position of the Wifi hotspot in a Wifi hotspot database according to the MAC address in the broadcast signal of the Wifi hotspot; determining the distance between the vehicle to be positioned and the Wifi hotspot according to the signal intensity value of the broadcast signal of the Wifi hotspot; and drawing a circle by taking the geographic position of the Wifi hotspot as the center of the circle, wherein the radius of the circle is the distance between the vehicle to be positioned and the Wifi hotspot, and the position of the lock of the vehicle to be positioned is positioned in the circle.
In another more specific example, taking the positioning of the vehicle through the plurality of Wifi hotspots as an example, the plurality of Wifi hotspots includes at least three. The method comprises the steps of obtaining broadcast signals of a plurality of Wifi hotspots, wherein the broadcast signals of each Wifi hotspot comprise an MAC address of the Wifi hotspot and a corresponding signal intensity value, sorting according to the signal intensity value corresponding to the broadcast signal of each Wifi hotspot, and selecting the broadcast signals of the first three Wifi hotspots in the signal intensity value sorting to position vehicles;
for example, selecting Wifi hotspot A, Wifi hotspot B, Wifi hotspot C with the strongest signal intensity value; finding out the geographical position of the Wifi hotspot A in a Wifi hotspot database according to the MAC address in the broadcast signal of the Wifi hotspot A, determining the distance between the vehicle to be positioned and the Wifi hotspot A according to the signal intensity value of the broadcast signal of the Wifi hotspot A, and drawing a circle by taking the geographical position of the Wifi hotspot A as the center of the circle and the distance between the vehicle to be positioned and the Wifi hotspot A as the radius; finding out the geographical position of the Wifi hotspot B in a Wifi hotspot database according to the MAC address in the broadcast signal of the Wifi hotspot B, determining the distance between the vehicle to be positioned and the Wifi hotspot B according to the signal intensity value of the broadcast signal of the Wifi hotspot B, and drawing a circle by taking the geographical position of the Wifi hotspot B as the center of the circle and the distance between the vehicle to be positioned and the Wifi hotspot B as the radius; finding out the geographical position of the Wifi hotspot C in a Wifi hotspot database according to the MAC address in the broadcast signal of the Wifi hotspot C, determining the distance between the vehicle to be positioned and the Wifi hotspot C according to the signal intensity value of the broadcast signal of the Wifi hotspot C, and drawing a circle by taking the geographical position of the Wifi hotspot C as the center of the circle and the distance between the vehicle to be positioned and the Wifi hotspot C as the radius; the lock to be positioned is then located at the overlap of these three circles.
In yet another more specific example, taking the positioning of the vehicle through the plurality of Wifi hotspots as an example, the plurality of Wifi hotspots includes at least 15. The method comprises the steps of obtaining broadcast signals of a plurality of Wifi hotspots, wherein the broadcast signals of each Wifi hotspot comprise MAC addresses of the Wifi hotspots and corresponding signal intensity values, sorting according to the signal intensity value corresponding to the broadcast signal of each Wifi hotspot, and selecting the broadcast signals of the first 15 Wifi hotspots in the signal intensity value sorting to carry out vehicle positioning. Specifically, the geographical position of each Wifi hotspot is found in a Wifi hotspot database according to the MAC address in the broadcast signal of each Wifi hotspot, the distance between the vehicle to be positioned and each Wifi hotspot is determined according to the signal intensity value of the broadcast signal of each Wifi hotspot, the selected geographical position of each Wifi hotspot is used as the center of a circle, the distance between the vehicle to be positioned and each Wifi hotspot is used as the radius to draw a circle, and the vehicle lock to be positioned is positioned at the overlapping part of all circles.
According to the scheme of the example, the broadcast signals of the plurality of Wifi hotspots with the strongest intensity are selected, the geographic position of the vehicle to be positioned is determined according to the MAC address of the selected Wifi hotspot and the corresponding signal intensity value, the calculated amount can be reduced, the positioning process is accelerated, and the positioning accuracy is further improved.
In another example, sending the MAC address of the Wifi hotspot and the corresponding signal strength value to the server may include:
and sending the MAC address, the SSID and the corresponding signal strength value of the Wifi hotspot to a server.
In this example, according to the MAC address and SSID of the Wifi hotspot, the corresponding Wifi hotspot may be quickly found in the Wifi hotspot database, thereby speeding up the location process.
In another example, the lock may further include a base station positioning module for positioning and at least one global navigation satellite system GNSS positioning module. The GNSS positioning module may be, for example, a GPS module or a beidou module.
The instructions when executed by the processor implement the steps of:
and acquiring the geographic position positioned by the base station positioning module and the geographic position positioned by the GNSS positioning module, and sending the geographic position and the geographic position to the server, so that the server determines the geographic position of the lock by using the geographic position determined based on the Wifi hotspot, the geographic position positioned by the base station positioning module and the geographic position positioned by the GNSS positioning module.
The positioning of the base station is a mature positioning technology and is not described herein too much. In brief, the base station positioning module may measure downlink pilot signals of different base stations to obtain TOA (Time of Arrival) or TDOA (Time Difference of Arrival) of downlink pilots of different base stations, and the geographic location of the vehicle to be positioned may be calculated according to the measurement result and the geographic coordinates of the base stations.
The server acquires the geographic position located by the base station locating module of the vehicle lock and the geographic position located by the GNSS locating module, and can comprehensively determine the geographic position of the vehicle lock by combining the geographic position determined by the Wifi hotspot in the above example.
In a specific example, the distance between any two of the geographic location determined based on the Wifi hotspot, the geographic location located by the base station positioning module, and the geographic location located by the GNSS positioning module is calculated. And selecting two geographical positions with the shortest distance, and determining the middle point of a connecting line of the two geographical positions as the final geographical position of the vehicle lock.
In this example, the geographical position of the lock is comprehensively determined by using the geographical position determined based on the Wifi hotspot, the geographical position located by the base station positioning module, and the geographical position located by the GNSS positioning module, so that the positioning result is more accurate.
< second embodiment >
In the present embodiment, there is provided a vehicle 300, as shown in fig. 3, including:
the first embodiment provides a vehicle lock 200. The vehicle lock is provided with a Wifi module for positioning.
The vehicle is a transportation device which is released for a user to obtain a use right in modes of time-sharing lease, local lease and the like, and can be a two-wheel or three-wheel bicycle, a moped, an electric vehicle or a motor vehicle with more than four wheels.
According to the vehicle provided by the embodiment of the invention, the Wifi module of the vehicle lock scans the Wifi hotspot to obtain the broadcast signal of the Wifi hotspot, and the broadcast signal of the Wifi hotspot is uploaded to the server. The server can determine the geographical position of the Wifi hotspot and the distance between the vehicle lock to be positioned and the Wifi hotspot according to the MAC address of the broadcast signal of the Wifi hotspot and the corresponding signal intensity value, so that the geographical position of the vehicle lock to be positioned is determined based on the geographical position of the Wifi hotspot and the distance between the vehicle lock to be positioned and the Wifi hotspot, the geographical position of the vehicle is determined, and the accuracy and the reliability of positioning the vehicle can be improved.
< third embodiment >
The method for positioning a vehicle provided in this embodiment may be implemented by a lock, which may be the lock 200 shown in fig. 2; or may be implemented by a vehicle, which may be vehicle 300 shown in fig. 3, or may be vehicle 3000 shown in fig. 1; or may be implemented by a server, which may be the server 1000 shown in fig. 1; the lock may be implemented by a server and the lock 200, which is not limited herein.
The embodiment is applied to positioning, dispatching, operating and managing vehicles, wherein the vehicles are transportation equipment which are released for users to obtain the use rights in modes of time-sharing renting, local renting and the like, and the vehicles can be two-wheel or three-wheel bicycles, mopeds, electric vehicles and motor vehicles with more than four wheels. For example, in areas, cells and indoors where a high-rise building stands, the GPS signal may cause positioning failure due to blocking, and positioning may be performed through the Wifi module at this time.
In an embodiment, the vehicle lock is provided with a Wifi module for positioning, and is further provided with a remote wireless communication module, such as a 2G/3G/4G/5G module, and the vehicle lock communicates with the server through the remote wireless communication module.
As shown in fig. 4, the vehicle positioning method in the present embodiment may include the following steps S4100 to S4300:
step S4100, starting a Wifi module to scan Wifi hotspots to obtain broadcast signals of the Wifi hotspots.
Specifically, the Wifi hotspot is continuously broadcasted in the starting state, the vehicle Wifi module is started, surrounding Wifi hotspots are scanned, and broadcasting signals of the Wifi hotspots are obtained.
The broadcast signal of the Wifi hotspot includes a physical address of the Wifi hotspot, that is, a MAC address. MAC (Media Access Control) addresses are typically written at the time of production of the network device, and each MAC address is globally unique.
The broadcast signal of the Wifi hotspot may further include a service set identifier SSID of the Wifi hotspot. The SSID (Service Set Identifier) is an identity of the Wifi hotspot, and may be, for example, a name of a wireless local area network accessed by the Wifi hotspot.
In this embodiment, a pre-established Wifi hotspot database is further provided, and specifically, the server side is pre-established with a Wifi hotspot database including a large amount of Wifi hotspot data, and the geographic location, the MAC address, and the SSID identity of each Wifi hotspot are stored in the Wifi hotspot database. And the server side can also regularly update and maintain the Wifi hotspot database according to the actual situation of the Wifi hotspot.
And starting a Wifi module of the vehicle lock to scan Wifi hotspots, and inquiring the geographic position of the corresponding Wifi hotspot according to the obtained MAC address of the Wifi hotspot through a Wifi hotspot database so as to position the vehicle lock. In addition, the Wifi hotspot database is updated and maintained regularly according to the actual situation of the Wifi hotspot, so that the accuracy of positioning the Wifi hotspot used for a long time can be improved.
After a Wifi module is started to scan Wifi hotspots and broadcast signals of the Wifi hotspots are obtained, the method comprises the following steps:
step S4200, a signal intensity value of the broadcast signal of the Wifi hotspot is obtained.
The broadcast signal of the Wifi hotspot is an electromagnetic wave signal, and the signal intensity value of the electromagnetic wave signal is attenuated along with the increase of the propagation distance. The signal intensity value of the Wifi hotspot can be used for reflecting the distance between the vehicle lock and the Wifi hotspot.
When the Wifi module of the vehicle lock scans the broadcast Signal of the Wifi hotspot, a corresponding received Signal Strength value rssi (received Signal Strength indication) can be obtained according to the Signal power of the received Signal. Since there is a very mature algorithm in obtaining the RSSI, and the embodiment of the present invention is applicable to any algorithm capable of obtaining the RSSI, it is not limited herein.
After acquiring the signal intensity value of the broadcast signal of the Wifi hotspot, entering:
step S4300, sending the physical address of the Wifi hotspot and the corresponding signal intensity value to a server; the server determines the geographical position of the Wifi hotspot according to the physical address of the Wifi hotspot, and determines the geographical position of the vehicle lock based on the geographical position of the Wifi hotspot and the corresponding signal intensity value.
In this embodiment, the vehicle lock of the vehicle implementing the method may send the MAC address of the Wifi hotspot and the corresponding signal strength value to the server through the remote wireless communication module.
In this embodiment, the physical address of the Wifi hotspot, that is, the MAC address, reflects the unique network identifier of the Wifi hotspot, and the geographic location of the Wifi hotspot scanned by the vehicle lock may be found according to the MAC address of the Wifi hotspot. A signal strength value reflecting a distance between the vehicle lock scanning the Wifi hotspot and the Wifi hotspot. Based on the MAC address of the Wifi hotspot and the corresponding signal intensity value, the geographic position of the vehicle lock to be positioned can be determined.
According to the method provided by the embodiment of the invention, the Wifi module of the vehicle lock scans the Wifi hotspot to obtain the broadcast signal of the Wifi hotspot, and the broadcast signal of the Wifi hotspot is uploaded to the server. The server can determine the geographic position of the Wifi hotspot and the distance between the vehicle lock to be positioned and the Wifi hotspot according to the MAC address of the broadcast signal of the Wifi hotspot and the corresponding signal intensity value, so that the geographic position of the vehicle lock to be positioned is determined based on the geographic position of the Wifi hotspot and the distance between the vehicle lock to be positioned and the Wifi hotspot.
In the embodiment of the invention, the geographical position of the vehicle is determined according to the MAC address of the broadcasting signal of the Wifi hotspot and the corresponding signal intensity value, so that the accuracy and reliability of positioning the vehicle can be improved. The embodiment of the invention provides the Wifi hotspot database, when the vehicle is positioned, the vehicle is positioned by the Wifi hotspot database in the environment by utilizing the existing Wifi hotspot, and the positioning cost is lower as a whole.
In one example, the Wifi module scans a plurality of Wifi hotspots.
In this example, the step S4300 of sending the physical address of the Wifi hotspot and the corresponding signal strength value to the server may further include the following steps S4310-S4320.
Step S4310, selecting n Wifi hotspots with the strongest signal intensity value from the plurality of Wifi hotspots, wherein n is an integer greater than or equal to 1;
step S4320, sending the physical addresses of the selected n Wifi hotspots and the corresponding signal intensity values to a server.
The physical address, namely the MAC address, of the Wifi hotspot reflects the unique network identifier of the Wifi hotspot, and the geographic location of the Wifi hotspot scanned by the vehicle lock can be found according to the MAC address of the Wifi hotspot.
Specifically, when the vehicle lock scans a plurality of Wifi hotspots and obtains broadcast signals of the Wifi hotspots, the Wifi hotspots are sorted according to the magnitude of the signal intensity value, and n Wifi hotspots with the strongest signal intensity values are selected. For example, n may be 1, or n may be 3, or n may be 15.
In this embodiment, based on the RSSI, the distance between the lock scanning the Wifi hotspot and the Wifi hotspot is determined, so as to locate the vehicle having the lock.
In a more specific example, the vehicle is located through 1 Wifi hotspot. Searching the geographical position of the Wifi hotspot in a Wifi hotspot database according to the MAC address in the broadcast signal of the Wifi hotspot; determining the distance between the vehicle to be positioned and the Wifi hotspot according to the signal intensity value of the broadcast signal of the Wifi hotspot; and drawing a circle by taking the geographic position of the Wifi hotspot as the center of the circle, wherein the radius of the circle is the distance between the vehicle to be positioned and the Wifi hotspot, and the position of the lock of the vehicle to be positioned is positioned in the circle.
In another more specific example, taking the positioning of the vehicle through the plurality of Wifi hotspots as an example, the plurality of Wifi hotspots includes at least three. The method comprises the steps of obtaining broadcast signals of a plurality of Wifi hotspots, wherein the broadcast signals of each Wifi hotspot comprise MAC addresses of the Wifi hotspots and corresponding signal intensity values, sorting according to the signal intensity value corresponding to the broadcast signal of each Wifi hotspot, and selecting the broadcast signals of the first three Wifi hotspots in the signal intensity value sorting to carry out vehicle positioning.
For example, selecting Wifi hotspot A, Wifi hotspot B, Wifi hotspot C with the strongest signal intensity value; finding out the geographical position of the Wifi hotspot A in a Wifi hotspot database according to the MAC address in the broadcast signal of the Wifi hotspot A, determining the distance between the vehicle to be positioned and the Wifi hotspot A according to the signal intensity value of the broadcast signal of the Wifi hotspot A, and drawing a circle by taking the geographical position of the Wifi hotspot A as the center of the circle and the distance between the vehicle to be positioned and the Wifi hotspot A as the radius; finding out the geographical position of the Wifi hotspot B in a Wifi hotspot database according to the MAC address in the broadcast signal of the Wifi hotspot B, determining the distance between the vehicle to be positioned and the Wifi hotspot B according to the signal intensity value of the broadcast signal of the Wifi hotspot B, and drawing a circle by taking the geographical position of the Wifi hotspot B as the center of the circle and the distance between the vehicle to be positioned and the Wifi hotspot B as the radius; finding out the geographical position of the Wifi hotspot C in a Wifi hotspot database according to the MAC address in the broadcast signal of the Wifi hotspot C, determining the distance between the vehicle to be positioned and the Wifi hotspot C according to the signal intensity value of the broadcast signal of the Wifi hotspot C, and drawing a circle by taking the geographical position of the Wifi hotspot C as the center of the circle and the distance between the vehicle to be positioned and the Wifi hotspot C as the radius; the lock to be positioned is then located at the overlap of these three circles.
In yet another more specific example, taking the positioning of the vehicle through the plurality of Wifi hotspots as an example, the plurality of Wifi hotspots includes at least 15. The method comprises the steps of obtaining broadcast signals of a plurality of Wifi hotspots, wherein the broadcast signals of each Wifi hotspot comprise MAC addresses of the Wifi hotspots and corresponding signal intensity values, sorting according to the signal intensity value corresponding to the broadcast signal of each Wifi hotspot, and selecting the broadcast signals of the first 15 Wifi hotspots in the signal intensity value sorting to carry out vehicle positioning. Specifically, the geographical position of each Wifi hotspot is found in a Wifi hotspot database according to the MAC address in the broadcast signal of each Wifi hotspot, the distance between the vehicle to be positioned and each Wifi hotspot is determined according to the signal intensity value of the broadcast signal of each Wifi hotspot, the selected geographical position of each Wifi hotspot is used as the center of a circle, the distance between the vehicle to be positioned and each Wifi hotspot is used as the radius to draw a circle, and the vehicle lock to be positioned is positioned at the overlapping part of all circles.
According to the scheme of the example, the broadcast signals of a plurality of Wifi hotspots are obtained, the geographic position of the vehicle to be positioned is determined according to the selected MAC address of the Wifi hotspot and the corresponding signal intensity value, the calculated amount can be reduced, the positioning process is accelerated, and the positioning accuracy is further improved.
In another example, sending the physical address of the Wifi hotspot and the corresponding signal strength value to the server may include:
and sending the physical address, SSID and corresponding signal strength value of the Wifi hotspot to a server.
In this example, the physical address, i.e., the MAC address, of the Wifi hotspot may be used to quickly find out the corresponding Wifi hotspot in the Wifi hotspot database according to the MAC address and the SSID of the Wifi hotspot, thereby speeding up the positioning process.
In another example, the vehicle lock of the vehicle implementing the method further comprises a base station positioning module and at least one global navigation satellite system GNSS positioning module. The GNSS positioning module may be, for example, a GPS module or a beidou module.
The vehicle positioning method in this embodiment may further include the steps of:
and acquiring the geographic position positioned by the base station positioning module and the geographic position positioned by the GNSS positioning module, and sending the geographic position and the geographic position to the server, so that the server determines the geographic position of the lock by utilizing the geographic position determined based on the Wifi hotspot, the geographic position positioned by the base station positioning module and the geographic position positioned by the GNSS positioning module.
The positioning of the base station is a mature positioning technology and is not described herein too much. In brief, the base station positioning module may measure downlink pilot signals of different base stations to obtain TOA (Time of Arrival) or TDOA (Time Difference of Arrival) of downlink pilots of different base stations, and the geographic location of the vehicle to be positioned may be calculated according to the measurement result and the geographic coordinates of the base stations.
The server acquires the geographic position located by the base station locating module of the vehicle lock and the geographic position located by the GNSS locating module, and can comprehensively determine the geographic position of the vehicle lock by combining the geographic position determined by the Wifi hotspot in the above example.
In a specific example, the distance between any two of the geographic location determined based on the Wifi hotspot, the geographic location located by the base station positioning module, and the geographic location located by the GNSS positioning module is calculated. And selecting two geographical positions with the shortest distance, and determining the middle point of a connecting line of the two geographical positions as the final geographical position of the vehicle lock.
In this example, the geographical position of the lock is comprehensively determined by using the geographical position determined based on the Wifi hotspot, the geographical position located by the base station positioning module, and the geographical position located by the GNSS positioning module, so that the positioning result is more accurate.
The positioning method for the vehicle provided in this embodiment has been described above with reference to the drawings and examples, and may be implemented by scanning a Wifi hotspot through a Wifi module of a vehicle lock to obtain a broadcast signal of the Wifi hotspot, and determining a geographic location of the Wifi hotspot and a distance between the vehicle lock to be positioned and the Wifi hotspot according to a MAC address and a corresponding signal strength value of the broadcast signal of the Wifi hotspot, so as to determine the geographic location of the vehicle lock of the vehicle to be positioned based on the MAC address and the corresponding signal strength value of the broadcast signal of the Wifi hotspot.
The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the server embodiment, since it is substantially similar to the method embodiment, the description is simple, and for relevant points, reference may be made to part of the description of the method embodiment.
The present invention may be a system, method and/or computer program product. The computer program product may include a computer-readable storage medium having computer-readable program instructions embodied therewith for causing a processor to implement various aspects of the present invention.
The computer readable storage medium may be a tangible device that can hold and store the instructions for use by the instruction execution device. The computer readable storage medium may be, for example, but not limited to, an electronic memory device, a magnetic memory device, an optical memory device, an electromagnetic memory device, a semiconductor memory device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a Static Random Access Memory (SRAM), a portable compact disc read-only memory (CD-ROM), a Digital Versatile Disc (DVD), a memory stick, a floppy disk, a mechanical coding device, such as punch cards or in-groove projection structures having instructions stored thereon, and any suitable combination of the foregoing. Computer-readable storage media as used herein is not to be construed as transitory signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through a waveguide or other transmission medium (e.g., optical pulses through a fiber optic cable), or electrical signals transmitted through electrical wires.
The computer-readable program instructions described herein may be downloaded from a computer-readable storage medium to a respective computing/processing device, or to an external computer or external storage device via a network, such as the internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers and/or edge servers. The network adapter card or network interface in each computing/processing device receives computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in a computer-readable storage medium in the respective computing/processing device.
The computer program instructions for carrying out operations of the present invention may be assembler instructions, Instruction Set Architecture (ISA) instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages, including an object oriented programming language such as Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The computer-readable program instructions may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider). In some embodiments, aspects of the present invention are implemented by personalizing an electronic circuit, such as a programmable logic circuit, a Field Programmable Gate Array (FPGA), or a Programmable Logic Array (PLA), with state information of computer-readable program instructions, which can execute the computer-readable program instructions.
Aspects of the present invention are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-readable program instructions.
These computer-readable program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks. These computer-readable program instructions may also be stored in a computer-readable storage medium that can direct a computer, programmable data processing apparatus, and/or other devices to function in a particular manner, such that the computer-readable medium storing the instructions comprises an article of manufacture including instructions which implement the function/act specified in the flowchart and/or block diagram block or blocks.
The computer readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the instructions which execute on the computer, other programmable apparatus or other devices implement the functions/acts specified in the flowchart and/or block diagram block or blocks.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions. It is well known to those skilled in the art that implementation by hardware, by software, and by a combination of software and hardware are equivalent.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the invention is defined by the appended claims.
Claims (10)
1. A vehicle lock comprises a Wifi module for positioning, a processor and a memory; the memory stores instructions that when executed by the processor implement the steps of:
starting the Wifi module to scan Wifi hotspots to obtain broadcast signals of the Wifi hotspots, wherein the broadcast signals of the Wifi hotspots comprise physical addresses of the Wifi hotspots;
acquiring a signal intensity value of the broadcast signal of the Wifi hotspot;
and sending the physical address of the Wifi hotspot and the corresponding signal intensity value to a server, so that the server can determine the geographical position of the Wifi hotspot according to the physical address of the Wifi hotspot, and determining the geographical position of the vehicle lock based on the geographical position of the Wifi hotspot and the corresponding signal intensity value.
2. The vehicle lock of claim 1, wherein the Wifi module scans a plurality of Wifi hotspots;
the sending the physical address of the Wifi hotspot and the corresponding signal strength value to a server includes:
selecting n Wifi hotspots with the strongest signal intensity values from the plurality of Wifi hotspots, wherein n is an integer greater than or equal to 1;
and sending the physical addresses of the n selected Wifi hotspots and the corresponding signal intensity values to the server.
3. The vehicle lock of claim 1, wherein the broadcast signal of the Wifi hotspot further comprises a Service Set Identifier (SSID) of the Wifi hotspot;
the sending the physical address of the Wifi hotspot and the corresponding signal strength value to a server includes:
and sending the physical address, SSID and the corresponding signal strength value of the Wifi hotspot to the server.
4. The vehicle lock of any of claims 1-3, further comprising a base station positioning module and a Global Navigation Satellite System (GNSS) positioning module.
5. The vehicle lock of claim 4, the instructions when executed by the processor performing the steps of:
and acquiring the geographic position positioned by the base station positioning module and the geographic position positioned by the GNSS positioning module, and sending the geographic positions to the server, so that the server determines the geographic position of the lock by using the geographic position determined based on the Wifi hotspot, the geographic position positioned by the base station positioning module and the geographic position positioned by the GNSS positioning module.
6. A vehicle, characterized by a vehicle lock according to any one of claims 1-5.
7. A method of locating a vehicle having a Wifi module for locating, the method comprising:
starting the Wifi module to scan Wifi hotspots to obtain broadcast signals of the Wifi hotspots, wherein the broadcast signals of the Wifi hotspots comprise physical addresses of the Wifi hotspots;
acquiring a signal intensity value of the broadcast signal of the Wifi hotspot;
sending the physical address of the Wifi hotspot and the corresponding signal intensity value to a server; the server determines the geographical position of the Wifi hotspot according to the physical address of the Wifi hotspot, and determines the geographical position of the vehicle lock based on the geographical position of the Wifi hotspot and the corresponding signal intensity value.
8. The method of claim 7, wherein the Wifi module scans a plurality of Wifi hotspots;
the sending the physical address of the Wifi hotspot and the corresponding signal strength value to a server includes:
selecting n Wifi hotspots with the strongest signal intensity values from the plurality of Wifi hotspots, wherein n is an integer greater than or equal to 1;
and sending the physical addresses of the n selected Wifi hotspots and the corresponding signal intensity values to the server.
9. The method of claim 7, wherein the broadcast signal of the Wifi hotspot further comprises a Service Set Identification (SSID) of the Wifi hotspot;
the sending the physical address of the Wifi hotspot and the corresponding signal strength value to a server includes:
and sending the physical address, SSID and the corresponding signal strength value of the Wifi hotspot to the server.
10. The method of claim 7, wherein the vehicle lock further comprises a base station positioning module and a Global Navigation Satellite System (GNSS) positioning module;
the method further comprises the following steps:
and acquiring the geographic position positioned by the base station positioning module and the geographic position positioned by the GNSS positioning module, and sending the geographic positions to the server, so that the server determines the geographic position of the lock by using the geographic position determined based on the Wifi hotspot, the geographic position positioned by the base station positioning module and the geographic position positioned by the GNSS positioning module.
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Effective date of registration: 20201211 Address after: Room 168, building 6, 741 Hangzhou Road, Yangpu District, Shanghai 200090 Applicant after: HANHAI INFORMATION TECHNOLOGY SHANGHAI Co.,Ltd. Address before: Room Bnan 1231, 2 bungalows, No. 5 Road, College, Haidian District, Beijing, 100191 Applicant before: BEIJING MOBIKE TECHNOLOGY Co.,Ltd. |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200121 |