CN114339587A

CN114339587A - Information transmission method, device, equipment and storage medium

Info

Publication number: CN114339587A
Application number: CN202011048665.1A
Authority: CN
Inventors: 董建利; 张军
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2022-04-12
Also published as: WO2022068151A1

Abstract

The embodiment of the application provides an information transmission method, an information transmission device, information transmission equipment and a storage medium, and relates to the technical field of Internet of things and Bluetooth. The method comprises the following steps: the vehicle-mounted Bluetooth device broadcasts first information, wherein the first information comprises a vehicle identifier of a vehicle to which the vehicle-mounted Bluetooth device belongs; the Bluetooth base station receives first information; the method comprises the steps that a Bluetooth base station acquires position information of a vehicle; the Bluetooth base station sends second information to the cloud platform, wherein the second information comprises vehicle identification and position information; the cloud platform stores the second information. The embodiment of the application is convenient for the user to inquire the position information of the vehicle through the vehicle identification of the vehicle, improves the efficiency of information acquisition, and is beneficial to intelligent management of the parking lot.

Description

Information transmission method, device, equipment and storage medium

Technical Field

The embodiment of the application relates to the technical field of Internet of things and Bluetooth, in particular to an information transmission method, an information transmission device, information transmission equipment and a storage medium.

Background

A parking lot is a place where parking spaces are provided for vehicles to park. With the development of economy, vehicles are more and more, and the scale of a parking lot is also larger and larger.

In order to facilitate management of a large-scale parking lot, parking space detection schemes based on infrared detection and ultrasonic detection are introduced in the related art. Through infrared detection and ultrasonic detection, the state of each parking stall in the parking area can be known, if know whether a certain parking stall is occupied, the position of idle parking stall, the quantity of idle parking stall etc.. However, infrared detection and ultrasonic detection can only realize the detection to the state of parking stall, and along with the scale of parking area is bigger and bigger, the user parks the vehicle in large-scale parking area after, if do not in time take notes the parking position, will need to spend a large amount of time to look for the vehicle, and is inefficient.

Therefore, further discussion and research is needed for parking lot management and parking space detection schemes.

Disclosure of Invention

The embodiment of the application provides an information transmission method, an information transmission device, information transmission equipment and a storage medium. The technical scheme is as follows:

in one aspect, an embodiment of the present application provides an information transmission method, which is applied to a vehicle-mounted bluetooth device, and the method includes:

broadcasting first information, wherein the first information comprises a vehicle identification of a vehicle to which the vehicle-mounted Bluetooth device belongs.

On the other hand, an embodiment of the present application provides an information transmission method, which is applied to a bluetooth base station, and the method includes:

receiving first information from a vehicle-mounted Bluetooth device, wherein the first information comprises a vehicle identifier of a vehicle to which the vehicle-mounted Bluetooth device belongs;

acquiring position information of the vehicle;

and sending second information to a cloud platform, wherein the second information comprises the vehicle identification and the position information.

In another aspect, an embodiment of the present application provides an information transmission method, which is applied to a cloud platform, and the method includes:

receiving second information from a Bluetooth base station, wherein the second information comprises a vehicle identification of a vehicle and position information of the vehicle;

and storing the second information.

In a further aspect, an embodiment of the present application provides an information transmission apparatus, which is disposed in a vehicle-mounted bluetooth device, and includes:

the first information broadcasting module is used for broadcasting first information, and the first information comprises a vehicle identifier of a vehicle to which the vehicle-mounted Bluetooth device belongs.

In another aspect, an embodiment of the present application provides an information transmission apparatus, where the information transmission apparatus is disposed in a bluetooth base station, and the apparatus includes:

the first information receiving module is used for receiving first information from the vehicle-mounted Bluetooth device, wherein the first information comprises a vehicle identifier of a vehicle to which the vehicle-mounted Bluetooth device belongs;

the position information acquisition module is used for acquiring the position information of the vehicle;

and the second information sending module is used for sending second information to a cloud platform, wherein the second information comprises the vehicle identifier and the position information.

In a further aspect, an embodiment of the present application provides an information transmission apparatus, which is disposed in a cloud platform, and the apparatus includes:

the second information receiving module is used for receiving second information from the Bluetooth base station, wherein the second information comprises a vehicle identification of a vehicle and position information of the vehicle;

and the second information storage module is used for storing the second information.

In a further aspect, an embodiment of the present application provides an on-vehicle bluetooth device, where the on-vehicle bluetooth device includes: a processor, and a transceiver coupled to the processor; wherein:

the transceiver is used for broadcasting first information, and the first information comprises a vehicle identification of a vehicle to which the vehicle-mounted Bluetooth device belongs.

In another aspect, an embodiment of the present application provides a bluetooth base station, where the bluetooth base station includes: a processor, and a transceiver coupled to the processor; wherein:

the transceiver is used for receiving first information from a vehicle-mounted Bluetooth device, wherein the first information comprises a vehicle identifier of a vehicle to which the vehicle-mounted Bluetooth device belongs;

the processor is used for acquiring the position information of the vehicle;

the transceiver is configured to send second information to a cloud platform, where the second information includes the vehicle identifier and the location information.

In yet another aspect, an embodiment of the present application provides a cloud platform, where the cloud platform includes: a processor, and a transceiver coupled to the processor; wherein:

the transceiver is used for receiving second information from the Bluetooth base station, wherein the second information comprises vehicle identification of a vehicle and position information of the vehicle;

the processor is configured to store the second information.

In a further aspect, an embodiment of the present application provides a computer-readable storage medium, where a computer program is stored in the storage medium, and the computer program is used for being executed by a processor of a vehicle-mounted bluetooth device to implement the method for transmitting information on the vehicle-mounted bluetooth device side as described above.

In a further aspect, an embodiment of the present application provides a computer-readable storage medium, where a computer program is stored in the storage medium, and the computer program is used for being executed by a processor of a bluetooth base station to implement the information transmission method on the bluetooth base station side as described above.

In a further aspect, an embodiment of the present application provides a computer-readable storage medium, where a computer program is stored in the storage medium, and the computer program is used for being executed by a processor of a cloud platform to implement the information transmission method on the cloud platform side as described above.

In a further aspect, an embodiment of the present application provides a chip, where the chip includes a programmable logic circuit and/or a program instruction, and when the chip runs on a vehicle-mounted bluetooth device, the chip is configured to implement the information transmission method on the vehicle-mounted bluetooth device side as described above.

In a further aspect, an embodiment of the present application provides a chip, where the chip includes a programmable logic circuit and/or program instructions, and when the chip runs on a bluetooth base station, the chip is configured to implement the information transmission method on the bluetooth base station side as described above.

In a further aspect, an embodiment of the present application provides a chip, where the chip includes a programmable logic circuit and/or a program instruction, and when the chip runs on a cloud platform, the chip is configured to implement the information transmission method on the cloud platform side.

In a further aspect, an embodiment of the present application provides a computer program product, which is used to implement the information transmission method on the vehicle-mounted bluetooth device side as described above when the computer program product runs on the vehicle-mounted bluetooth device.

In a further aspect, the present application provides a computer program product, when the computer program product runs on a bluetooth base station, for implementing the information transmission method on the bluetooth base station side as described above.

In a further aspect, an embodiment of the present application provides a computer program product, which is used to implement the information transmission method on the cloud platform side as described above when the computer program product runs on the cloud platform.

The technical scheme provided by the embodiment of the application can have the following beneficial effects:

the position information of the vehicle is acquired through the Bluetooth base station, the position information and the vehicle identification of the vehicle are jointly sent to the cloud platform, and the cloud platform stores the position information and the vehicle identification, so that a subsequent user can conveniently inquire the position information of the vehicle through the vehicle identification of the vehicle, and the intelligent management of a parking lot is facilitated. And, in this application embodiment, the vehicle identification is by the on-vehicle bluetooth equipment broadcast of vehicle, and the bluetooth basic station can acquire the vehicle identification fast, compares and still need discern the vehicle identification just can to acquire the image in the detection scheme based on image or video, and this application embodiment has promoted the efficiency that information acquireed. In addition, compare and need lay a plurality of cameras and detect the vehicle in the detection mode based on image or video, in the embodiment of this application, a bluetooth basic station can realize the detection to the vehicle on a plurality of parking stalls to cost and construction volume have been reduced, and because bluetooth basic station possesses advantages such as small, can not occupy too big space, be convenient for arrange and subsequent maintenance.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic diagram of a distribution network system according to an embodiment of the present application;

fig. 2 is a flowchart of an information transmission method according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a positioning method provided by an embodiment of the present application;

fig. 4 is a flowchart of a pushing method of location information according to an embodiment of the present application;

fig. 5 is a flowchart of an information transmission method according to another embodiment of the present application;

FIG. 6 is a block diagram of an information transfer device provided in one embodiment of the present application;

fig. 7 is a block diagram of an information transmission apparatus according to another embodiment of the present application;

fig. 8 is a block diagram of an information transmission apparatus according to still another embodiment of the present application;

fig. 9 is a block diagram of an information transmission apparatus according to still another embodiment of the present application;

fig. 10 is a schematic structural diagram of a vehicle-mounted bluetooth device according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of a bluetooth base station according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a cloud platform according to an embodiment of the present application.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

Therefore, if the association between the vehicle and the parking space can be established, the user can conveniently inquire the parking space through the related information of the vehicle. In order to associate a vehicle with a parking space, a video or image-based parking space detection scheme is provided in the related art, the image or video is shot, information identification and detection are performed to obtain related information of the vehicle, and then the related information of the vehicle is associated with the parking space where the vehicle is parked. However, the video or image-based parking space detection scheme requires an image acquisition device, such as a camera, to be installed in each parking space, which results in problems of large construction amount, large space occupation amount, complicated wiring, high power consumption, high cost, and the like.

Based on this, the embodiment of the application provides an information transmission method, the position information of the vehicle is obtained through the bluetooth base station, the position information of the vehicle and the vehicle identification are jointly sent to the cloud platform, and the cloud platform stores the position information and the vehicle identification, so that a subsequent user can conveniently inquire the position information of the vehicle through the vehicle identification of the vehicle, and the intelligent management of a parking lot is facilitated. And, in this application embodiment, the vehicle identification is by the on-vehicle bluetooth equipment broadcast of vehicle, and the bluetooth basic station can acquire the vehicle identification fast, compares and still need discern the vehicle identification just can to acquire the image in the detection scheme based on image or video, and this application embodiment has promoted the efficiency that information acquireed. In addition, compare and need lay a plurality of cameras and detect the vehicle in the detection mode based on image or video, in the embodiment of this application, a bluetooth basic station can realize the detection to the vehicle on a plurality of parking stalls to cost and construction volume have been reduced, and because bluetooth basic station possesses advantages such as small, can not occupy too big space, be convenient for arrange and subsequent maintenance. The technical solution of the present application will be described below with reference to several examples.

Referring to fig. 1, which shows a schematic view of a parking lot provided in an embodiment of the present application, the parking lot 100 may include: vehicle 110, bluetooth base station 120, cloud platform 130, and terminal device 140.

The parking lot 100 refers to a place where a parking space is provided for a vehicle to park. To facilitate management of the parking lot 100, the parking lot 100 is generally divided into different areas. For example, as shown in fig. 1, the parking lot 100 is divided into two layers and four areas, an area 101, an area 102, an area 103, and an area 104. The area of each region is not limited in the embodiment of the application, and optionally, the area of each region is the same; or, the area sizes of the regions are different, for example, the area sizes of the regions on the same layer are the same, but the area sizes of the regions on different layers are different, and in practical application, the area sizes of the regions and the division of the regions may be determined by combining specific application requirements. Optionally, index information may be further added in each area to distinguish different parking spaces, for example, taking the area 101 as an example, as shown in fig. 1, the area 101 includes six parking spaces whose index information is 001, 002, 003, 004, 005 and 006 respectively, and the position of a certain parking space in each area can be quickly determined through the index information.

The vehicle 110 is a vehicle that has a parking demand and needs to be parked in a parking lot. The type of the vehicle 110 is not limited in the embodiment of the present application, and optionally, the vehicle 110 includes a car, a truck, a minibus, etc., in practical applications, the type of the vehicle 110 may be determined according to the setting of the parking lot 100, for example, the parking lot 100 only allows parking a car, and then the type of the vehicle 110 is also generally a car.

In one example, a vehicle 110 has a vehicle bluetooth device installed therein. The installation manner of the vehicle-mounted bluetooth device is not limited in the embodiment of the present application, and optionally, the vehicle-mounted bluetooth device is pre-installed in the vehicle 110 when the vehicle 110 leaves a factory, and belongs to one functional module in the vehicle 110; alternatively, the vehicle-mounted bluetooth device is added to the vehicle 110 during the use of the vehicle 110, for example, during the use of the vehicle 110 by the user, a requirement for installing the vehicle-mounted bluetooth device is generated, and then the vehicle-mounted bluetooth device is installed in the vehicle 110. In this embodiment, the vehicle-mounted bluetooth device may transmit a radio frequency signal, so as to facilitate the reception of the bluetooth base station 120. Alternatively, the vehicle-mounted bluetooth device is a single antenna device in consideration of cost, volume, portability, and the like.

Bluetooth base station 120 refers to a base station that is capable of detecting vehicle 110 to obtain the location of vehicle 110. In this embodiment, the bluetooth base station 120 may estimate the position of the vehicle 110 to obtain a parking space where the vehicle 110 is located. Alternatively, the bluetooth base station 120 is a multi-antenna device, for example, an antenna array is included in the bluetooth base station 120, in consideration of the accuracy of the position estimation, the estimated range, and the like. Optionally, in this embodiment of the present application, the bluetooth base station 120 estimates the position of the vehicle based on Angle of Arrival (AOA).

In the embodiment of the present application, the deployment number of the bluetooth base stations 120 is not limited, and optionally, only one bluetooth base station 120 is deployed in the parking lot 100; alternatively, each floor in the parking lot 100 is deployed with one bluetooth base station 120; alternatively, one bluetooth base station 120 is deployed per area in the parking lot 100. Taking the example that one bluetooth base station 120 is deployed in each area of the parking lot 100, optionally, as shown in fig. 1, the bluetooth base station 120 is deployed in the middle of the area. Since the vehicle-mounted bluetooth device in the vehicle 110 transmits the radio frequency signal, the bluetooth base station 120 needs to scan the radio frequency signal, and generally, the bluetooth base station 120 scans all around, so that the bluetooth base station 120 is deployed in the middle of the area, which is beneficial for the bluetooth base station 120 to scan a wider range. The deployment determination method of the bluetooth base station 120 is not limited in the embodiment of the present application, and in practical applications, the deployment determination method of the bluetooth base station 120 may be determined by combining factors such as the scale of the parking lot 100, the area size of each area, the accuracy requirement for position estimation, and the cost.

The cloud platform 130 is a platform having functions of information storage, management, and the like. In the embodiment of the present application, after estimating the position of the vehicle 110, the bluetooth base station 120 may send the position of the vehicle 110 and related information to the cloud platform 130. After receiving the information from the bluetooth base station 120, the cloud platform 130 may store the location of the vehicle 110 and related information. Optionally, the cloud platform 130 may push the location of the vehicle 110 to the terminal device 140 held by the user of the vehicle 110 according to the relevant information of the vehicle 110. Alternatively, the cloud platform 130 is implemented as a server, and the server may be one server or a server cluster formed by a plurality of servers.

The terminal device 140 refers to a terminal held by a user of the vehicle 110, and optionally, the terminal device 140 is an electronic device such as a mobile phone, a tablet Computer, a game console, an electronic book reader, a multimedia player, a wearable device, a PC (Personal Computer), and the like. In this embodiment, the terminal device 140 may receive the position of the vehicle pushed by the cloud platform 130. Optionally, the terminal device 140 may send a location obtaining request to the cloud platform to obtain the location of the vehicle, where the location obtaining request may include relevant information of the vehicle, and after receiving the location obtaining request, the cloud platform may query the location of the vehicle according to the relevant information of the vehicle, and send the location of the vehicle to the terminal device 140.

Referring to fig. 2, a flowchart of an information transmission method provided in an embodiment of the present application is shown, and the method may be applied to the parking lot shown in fig. 1. The method comprises the following steps (210-250):

step 210, the vehicle-mounted bluetooth device broadcasts first information, wherein the first information comprises a vehicle identifier of a vehicle to which the vehicle-mounted bluetooth device belongs.

The vehicle-mounted Bluetooth device is provided with an information sending function and can broadcast first information. The embodiment of the application does not limit the specific way for the vehicle-mounted Bluetooth device to broadcast the first information, and optionally, the vehicle-mounted Bluetooth device only broadcasts the first information once to reduce the power consumption of the vehicle-mounted Bluetooth device; or the vehicle-mounted Bluetooth equipment periodically broadcasts the first information to ensure that the Bluetooth base station can receive the first information; or the vehicle-mounted Bluetooth device broadcasts the first information periodically within the preset time, so that the Bluetooth base station can receive the first information while the power consumption of the vehicle-mounted Bluetooth device is reduced.

The first information is related information of a vehicle to which the vehicle-mounted bluetooth device belongs, and in the embodiment of the application, the first information includes a vehicle identifier to identify the vehicle to which the vehicle-mounted bluetooth device belongs. The embodiment of the application does not limit the way for the vehicle-mounted Bluetooth device to acquire the first information, and optionally, the first information is preset in the vehicle-mounted Bluetooth device; or the first information is added into the vehicle-mounted Bluetooth equipment by the user; or the first information is randomly generated by the vehicle-mounted Bluetooth device. The embodiment of the application does not limit the specific content of the vehicle identifier, and optionally, the license plate number can achieve the purpose of identifying the vehicle, so that the vehicle identifier can be directly the license plate number; or, the vehicle Identifier includes a UUID (Universal Unique Identifier), so that the license plate number can be hidden, the license plate number is prevented from being leaked, and privacy protection is facilitated. In the case that the vehicle identifier includes the UUID, the generation manner of the UUID is not limited in this embodiment of the application, and optionally, the UUID is generated according to one or more items of information of the user information (such as a mobile phone number, an equipment identifier of a terminal device held by the user, and the like), the license plate number, and the like. Optionally, the UUID is generated by the vehicle bluetooth device; or the UUID is generated by the terminal equipment held by the user and is input to the vehicle-mounted Bluetooth equipment; or the UUID is determined by the user and input into the vehicle-mounted Bluetooth device.

To avoid affecting the position estimation of the vehicle by the bluetooth base station, in one example, the step 210 includes: in the case where the vehicle is turned off, the onboard bluetooth device broadcasts the first information. The vehicle flameout indicates that the vehicle stops running, namely, the vehicle is stably parked in the parking space, and under the condition that the vehicle is flameout, the vehicle-mounted Bluetooth device broadcasts the first information again, so that the situation that the position estimation of the Bluetooth base station on the vehicle is influenced because the vehicle is not stably parked can be avoided.

In step 220, the bluetooth base station receives the first information.

In this embodiment of the application, the bluetooth base station may scan the first information broadcast by each vehicle-mounted bluetooth device to receive the first information. Along with the distance between vehicle and the bluetooth base station is more and more far away, the signal of the on-vehicle bluetooth equipment broadcast of carrying on the vehicle is also more and more big in the loss of broadcasting in-process to the signal strength when this signal reachs the bluetooth base station is also more and more weak, in this application embodiment, in order to promote the bluetooth base station and carry out the accuracy of position estimation, set up first signal strength in the bluetooth base station to whether confirm according to first signal strength and receive first information. Based on this, in one example, the step 220 includes: and under the condition that the first information is scanned and the signal strength of the first information is greater than the first signal strength, the Bluetooth base station receives the first information. Optionally, the first signal strength is preset in the bluetooth base station, and in practical applications, the first signal strength may be specifically determined by combining the size of the scanning area of the bluetooth base station, the possible loss value of the signal, and the like.

In step 230, the bluetooth base station obtains the location information of the vehicle.

And the Bluetooth base station determines that the vehicle is stably parked under the condition of receiving the first information, and further acquires the position information of the vehicle. The embodiment of the application does not limit the form of the position information of the vehicle, and optionally, the position information of the vehicle is represented in the form of coordinates; alternatively, the position information of the vehicle is represented by the identification of the parking space in the parking lot, for example, in the form of "a-floor B-zone C number", and the position information of the vehicle is also represented by "a-floor B-zone C number".

Optionally, the bluetooth base station estimates the location of the vehicle based on an angle of arrival of the vehicle to the bluetooth base station. For the process of the bluetooth base station acquiring the position information of the vehicle, please refer to the following embodiments, which are not described herein again.

And 240, the bluetooth base station sends second information to the cloud platform, wherein the second information comprises vehicle identification and position information.

After acquiring the position information of the vehicle, the bluetooth base station may send the position information of the vehicle and the vehicle identifier of the vehicle to the cloud platform, that is, send second information to the cloud platform, where the second information includes the vehicle identifier and the position information. Optionally, the bluetooth base station may also establish a corresponding relationship between the vehicle identifier and the location information, and then send the vehicle identifier and the location information having the corresponding relationship to the cloud platform, so that the location information of the vehicle may be queried subsequently according to the vehicle identifier of the vehicle.

At step 250, the cloud platform stores the second information.

After receiving the second information, the cloud platform may store the second information. Optionally, under the condition that the bluetooth base station does not establish the corresponding relationship between the vehicle identifier and the location information, the cloud platform may store the vehicle identifier and the location information after establishing the corresponding relationship between the vehicle identifier and the location information, so that the location information of the vehicle may be queried subsequently according to the vehicle identifier of the vehicle. Optionally, after receiving the second information, the cloud platform may also push the position information in the second information to the user, so that the user can grasp the position of the vehicle in time. For an introduction description of pushing the location information to the user by the cloud platform, please refer to the following embodiments, which are not described herein again.

To sum up, the technical scheme that this application embodiment provided acquires the positional information of vehicle through the bluetooth basic station to send the positional information and the vehicle identification of vehicle to the cloud platform jointly, store positional information and vehicle identification by the cloud platform, so that follow-up user inquires the positional information of vehicle through the vehicle identification of vehicle, help the intelligent management to the parking area. And, in this application embodiment, the vehicle identification is by the on-vehicle bluetooth equipment broadcast of vehicle, and the bluetooth basic station can acquire the vehicle identification fast, compares and still need discern the vehicle identification just can to acquire the image in the detection scheme based on image or video, and this application embodiment has promoted the efficiency that information acquireed. In addition, compare and need lay a plurality of cameras and detect the vehicle in the detection mode based on image or video, in the embodiment of this application, a bluetooth basic station can realize the detection to the vehicle on a plurality of parking stalls to cost and construction volume have been reduced, and because bluetooth basic station possesses advantages such as small, can not occupy too big space, be convenient for arrange and subsequent maintenance.

Next, a description will be given of a process of acquiring the position information of the vehicle.

In one example, the first information further includes a CTE (single Tone Extension) field for carrying the first radio frequency signal; the step 230 includes: and the Bluetooth base station estimates the position of the vehicle based on the first radio frequency signal to obtain position information.

The first information broadcast by the vehicle-mounted Bluetooth device contains the CTE, and after receiving the first information, the Bluetooth base station can extract the CTE from the first information, so that a first radio frequency signal carried by the CTE is obtained, and the position of the vehicle is estimated based on the first radio frequency signal. In this embodiment of the application, the first radio frequency signal is a radio frequency signal transmitted by the vehicle-mounted bluetooth device, and optionally, the frequency of the first radio frequency signal is fixed.

As can be seen from the above description, in the embodiments of the present invention, the bluetooth base station generally includes multiple antennas, such as an antenna array, where the antenna array includes multiple antennas. The estimation of the position of the vehicle can be achieved by means of the antenna and the first radio frequency signal comprised in the bluetooth base station. Next, a description will be given of a process of estimating the position of the vehicle by the bluetooth base station, taking two antennas included in the bluetooth base station as an example.

Optionally, the bluetooth base station comprises a first antenna and a second antenna; the estimating the position of the vehicle based on the first radio frequency signal to obtain the position information includes the following steps:

(1) a wavelength of the first radio frequency signal is determined.

The first rf signal is usually a fixed frequency rf signal, and the bluetooth base station can obtain the first rf signal from the CTE contained in the first information and obtain the frequency of the first rf signal after receiving the first information. The wavelength of the first rf signal can be determined according to the frequency of the first rf signal and the propagation speed of the first rf signal. The calculation formula for the wavelength λ (in meters) of the first radio frequency signal is as follows:

λ＝v/f。

wherein, v is the transmission speed of the first radio frequency signal, because the first radio frequency signal is the electromagnetic wave, v can get the speed of light, that is 3 x 10⁸Meters per second; f is the frequency of the first radio frequency signal in hertz (Hz).

(2) And acquiring a phase difference generated when the first antenna and the second antenna receive the first radio-frequency signal.

As shown in fig. 3(a), if the vehicle-mounted bluetooth device is located between the first antenna and the second antenna, distances from the vehicle-mounted bluetooth device to the first antenna and the second antenna are consistent, and no phase difference occurs when the first antenna and the second antenna receive the first radio frequency signal. At this time, it can be directly considered that the arrival angle of the vehicle to the bluetooth base station is 90 degrees. As shown in fig. 3(b), if the vehicle-mounted bluetooth device is not located on the middle line of the connecting line of the first antenna and the second antenna, the first antenna and the second antenna will receive the first radio frequency signal and generate a phase difference (ψ).

(3) And determining the distance difference between the vehicle and the first antenna and the second antenna according to the wavelength and the phase difference.

According to the phase difference generated when the first antenna and the second antenna receive the first radio frequency signal and the wavelength of the first radio frequency signal, the difference value between the distance from the vehicle to the first antenna and the distance from the vehicle to the second antenna, namely the distance difference, can be determined. The distance difference Δ d is calculated as follows:

(4) and determining the arrival angle of the vehicle to the Bluetooth base station according to the distance difference and the distance between the first antenna and the second antenna.

As shown in fig. 3(b), the arrival angle θ from the vehicle to the bluetooth base station can be calculated from the distance between the two antennas and the distance difference Δ d. The calculation formula of the arrival angle θ is as follows:

wherein D is the distance between the first antenna and the second antenna.

(5) And determining the position information of the vehicle according to the arrival angle.

In this embodiment of the application, a layout of parking spaces in a parking lot may be stored in the bluetooth base station, and each parking space corresponds to a different arrival angle, for example, one parking space corresponds to an arrival angle within a certain angle range. According to the arrival angle from the vehicle to the Bluetooth base station, the Bluetooth base station can acquire the parking space corresponding to the arrival angle from the layout diagram, and then the position information of the vehicle is determined.

In summary, in the technical scheme provided in the embodiment of the present application, each antenna in the bluetooth base station receives a radio frequency signal transmitted by the vehicle-mounted bluetooth device, and receives a phase difference generated when the radio frequency signal is received, so as to obtain an arrival angle from a vehicle to the bluetooth base station, and further estimate a position of the vehicle according to the arrival angle. According to the embodiment of the application, the position information of the vehicle is obtained through the position estimation method based on the arrival angle, and technical support is provided for a subsequent user to inquire the position information of the vehicle.

As can be seen from the above description, after the cloud platform acquires the second information, the cloud platform may push the second information to the terminal device held by the user, so that the user can grasp and acquire the location information of the vehicle. The method for pushing the position information to the user by the cloud platform is not limited, and optionally, the cloud platform actively pushes the position information to the user; or the cloud platform pushes the position information to the user after receiving the request of the user. The following description will be made for these two modes, respectively.

First, the description explains that the cloud platform actively pushes the location information to the user.

In one example, as shown in fig. 4, after the step 240, the method further includes:

in step 262, the cloud platform obtains a set of user information.

The user information set comprises at least one user information, and each user information can indicate one terminal device. The content of the user information is not limited in the embodiment of the application, and optionally, the user information includes one or more of a device identifier of the terminal device, a mobile phone number of the user, identity information of the user, a vehicle identifier of a vehicle of the user, and the like. At least one piece of user information can be stored in the cloud platform, and optionally, at least one piece of user information can be preset in the cloud platform; or, the cloud platform stores the user information every time the cloud platform acquires one piece of user information, that is, the cloud platform stores the user information in real time.

In step 264, the cloud platform determines first user information corresponding to the vehicle identifier from the at least one piece of user information.

According to the vehicle identifier in the second information, the cloud platform may determine, from the at least one piece of user information, first user information corresponding to the vehicle identifier, where the first user information is used to indicate the first terminal device.

Step 266, the cloud platform sends the location information to the first terminal device.

Under the condition that the cloud platform can acquire the first user information from at least one piece of user information, the position information of the vehicle can be sent to the terminal equipment indicated by the first user information, namely the first terminal equipment, and the parking position of the vehicle owned by the user in the parking lot is informed to the user in time, so that the user can conveniently and quickly find the vehicle subsequently.

Secondly, the introduction explains that the cloud platform pushes the position information to the user after receiving the request of the user.

in step 261, the second terminal device sends an information obtaining request to the cloud platform, where the information obtaining request is used to request to obtain the location information.

In the embodiment of the application, under the condition that a user has a requirement for acquiring the position information of the vehicle, an information acquisition request can be sent to the cloud platform through a terminal device held by the user, namely, a second terminal device, so as to request for acquiring the position information of the vehicle. Optionally, the information acquisition request includes a vehicle identifier of the vehicle, so that the cloud platform can query corresponding location information according to the vehicle identifier.

And 263, the cloud platform sends the position information to the second terminal device.

After receiving the information acquisition request, the cloud platform may determine, according to the vehicle identifier in the information acquisition request, location information corresponding to the vehicle identifier, and send the location information to the second terminal device, so as to respond to the information acquisition request of the second terminal device.

In an example, the information obtaining request further includes second user information, where the second user information is used to indicate a second terminal device; after the step 261, the method further includes: acquiring a user information set, wherein the user information set comprises at least one piece of user information; and storing the second user information in the case that the second user information is not included in the at least one piece of user information. That is, in the embodiment of the application, the cloud platform stores the user information of the user in real time, so that after a subsequent user parks the vehicle, the user actively pushes the position information of the vehicle to the user according to the terminal device indicated by the user information.

In summary, according to the technical scheme provided by the embodiment of the application, after the user parks the vehicle, the position information of the vehicle is actively pushed to the user, and the parking position of the vehicle owned by the user in the parking lot is informed to the user in time, so that the user can conveniently and quickly find the vehicle subsequently. In addition, in the embodiment of the application, under the condition that an inquiry request of a user is received, the parking position of the vehicle owned by the user is inquired and pushed to the user, so that functions provided by the cloud platform in the embodiment of the application are enriched and perfected. In addition, in the embodiment of the application, when the cloud platform receives the query request of the user, if the user information of the user is not stored in the cloud platform according to the query request, the user information of the user is stored, so that the position information of the vehicle can be pushed to the user actively in the follow-up process, and the functions of the cloud platform are further enriched and improved.

Referring to fig. 5, a flowchart of an information transmission method according to an embodiment of the present application is shown. The information transmission method comprises the following steps (510-590):

in step 510, under the condition that the vehicle is turned off, the vehicle-mounted Bluetooth device broadcasts first information, wherein the first information comprises the CTE and the vehicle identification of the vehicle to which the vehicle-mounted Bluetooth device belongs. The vehicle identification comprises a license plate number or a UUID.

In step 520, the bluetooth base station scans and receives the first information.

And step 530, the Bluetooth base station estimates the position of the vehicle according to the first radio frequency signal carried by the CTE to obtain the position information of the vehicle.

And 540, the Bluetooth base station sends second information to the cloud platform, wherein the second information comprises vehicle identification and position information.

In step 550, the cloud platform stores the second information.

And step 560, the cloud platform sends the position information to the first terminal device under the condition that the first user information is stored in the cloud platform. The first user information is user information corresponding to the vehicle identifier, and the first user information indicates the first terminal device.

Step 570, the second terminal device sends an information acquisition request to the cloud platform, where the information acquisition request includes target user information and a target vehicle identifier.

Step 580, the cloud platform sends the target location information to the second terminal device, where the target location information is location information corresponding to the target vehicle identifier.

In step 590, the cloud platform stores the target user information when the target user information is not stored in the cloud platform.

It should be noted that, in the embodiment of the present application, an introduction description is provided for the information transmission method provided in the embodiment of the present application from the perspective of interaction between the vehicle-mounted bluetooth device, the bluetooth base station, and the cloud platform. The steps executed by the vehicle-mounted Bluetooth device can be independently realized as an information transmission method at the vehicle-mounted Bluetooth device side; the steps executed by the bluetooth base station can be independently realized as an information transmission method at the bluetooth base station side; the steps executed by the cloud platform can be independently realized as an information transmission method on the cloud platform side.

The following are embodiments of the apparatus of the present application that may be used to perform embodiments of the method of the present application. For details which are not disclosed in the embodiments of the apparatus of the present application, reference is made to the embodiments of the method of the present application.

Referring to fig. 6, a block diagram of an information transmission apparatus according to an embodiment of the present application is shown. The device has the function of realizing the method example of the vehicle-mounted Bluetooth equipment side, and the function can be realized by hardware or by executing corresponding software by hardware. The device can be the vehicle-mounted Bluetooth device introduced above, and can also be arranged in the vehicle-mounted Bluetooth device. As shown in fig. 6, the apparatus 600 may include: a first information broadcasting module 610.

The first information broadcasting module 610 is configured to broadcast first information, where the first information includes a vehicle identifier of a vehicle to which the vehicle-mounted bluetooth device belongs.

In one example, the vehicle identification includes a UUID.

In one example, the vehicle identification includes a license plate number.

In one example, the first information broadcasting module 610 is configured to: broadcasting the first information if the vehicle is turned off.

Referring to fig. 7, a block diagram of an information transmission apparatus according to an embodiment of the present application is shown. The device has the function of realizing the method example of the Bluetooth base station side, and the function can be realized by hardware or by executing corresponding software by hardware. The device may be the bluetooth base station described above, or may be provided in the bluetooth base station. As shown in fig. 7, the apparatus 700 may include: a first information receiving module 710, a location information acquiring module 720 and a second information transmitting module 730.

The first information receiving module 710 is configured to receive first information from a vehicle-mounted bluetooth device, where the first information includes a vehicle identifier of a vehicle to which the vehicle-mounted bluetooth device belongs.

A position information obtaining module 720, configured to obtain position information of the vehicle.

A second information sending module 730, configured to send second information to a cloud platform, where the second information includes the vehicle identifier and the location information.

In one example, the vehicle identification includes a UUID.

In one example, the vehicle identification includes the license plate number.

In one example, the first information further comprises a CTE field for carrying a first radio frequency signal; the location information obtaining module 720 is configured to: and estimating the position of the vehicle based on the first radio frequency signal to obtain the position information.

In one example, the bluetooth base station includes a first antenna and a second antenna; the location information obtaining module 720 is configured to: determining a wavelength of the first radio frequency signal; acquiring a phase difference generated when the first antenna and the second antenna receive the first radio frequency signal; determining a distance difference from the vehicle to the first antenna and the second antenna according to the wavelength and the phase difference; determining an arrival angle of the vehicle to the Bluetooth base station according to the distance difference and the distance between the first antenna and the second antenna; and determining the position information of the vehicle according to the arrival angle.

In one example, the first information receiving module 710 is configured to: receiving the first information if the first information is scanned and the signal strength of the first information is greater than the first signal strength.

Referring to fig. 8, a block diagram of an information transmission apparatus according to an embodiment of the present application is shown. The device has the functions of realizing the method example of the cloud platform side, and the functions can be realized by hardware or by executing corresponding software by hardware. The device may be the cloud platform introduced above, or may be provided in the cloud platform. As shown in fig. 8, the apparatus 800 may include: a second information receiving module 810 and a second information storing module 820.

And a second information receiving module 810, configured to receive second information from the bluetooth base station, where the second information includes a vehicle identifier of a vehicle and location information of the vehicle.

A second information storage module 820, configured to store the second information.

In one example, the vehicle identification includes a UUID.

In one example, the vehicle identification includes a license plate number.

In one example, as shown in fig. 9, the apparatus 800 further comprises: a user information obtaining module 832, configured to obtain a user information set, where the user information set includes at least one piece of user information; a user information determining module 834, configured to determine, from the at least one piece of user information, first user information corresponding to the vehicle identifier, where the first user information is used to indicate a first terminal device; a location information sending module 836, configured to send the location information to the first terminal device.

In one example, as shown in fig. 9, the apparatus 800 further comprises: an obtaining request receiving module 840, configured to receive an information obtaining request from a second terminal device, where the information obtaining request is used to request to obtain the location information; a location information sending module 836, configured to send the location information to the second terminal device.

In an example, the information obtaining request further includes second user information, where the second user information is used to indicate the second terminal device; as shown in fig. 9, the apparatus 800 further includes: a user information obtaining module 832, configured to obtain a user information set, where the user information set includes at least one piece of user information; a user information storage module 850, configured to store the second user information when the second user information is not included in the at least one piece of user information.

It should be noted that, when the apparatus provided in the foregoing embodiment implements the functions thereof, only the division of the above functional modules is illustrated, and in practical applications, the above functions may be distributed by different functional modules according to actual needs, that is, the content structure of the device is divided into different functional modules, so as to complete all or part of the functions described above.

With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.

Referring to fig. 10, a schematic structural diagram of a vehicle-mounted bluetooth device 100 according to an embodiment of the present application is shown, for example, the vehicle-mounted bluetooth device may be used to execute the vehicle-mounted bluetooth device-side information transmission method. Specifically, the vehicle-mounted bluetooth device 100 may include: a processor 101, and a transceiver 102 connected to the processor 101; wherein:

the processor 101 includes one or more processing cores, and the processor 101 executes various functional applications and information processing by running software programs and modules.

The transceiver 102 includes a receiver and a transmitter. Optionally, the transceiver 102 is a communication chip.

In one example, the vehicle-mounted bluetooth apparatus 100 further includes: a memory and a bus. The memory is connected to the processor by a bus. The memory may be used to store a computer program that is executed by the processor to implement the steps performed by the bluetooth car device in the above-described method embodiments.

Further, the memory may be implemented by any type or combination of volatile or non-volatile storage devices, including, but not limited to: RAM (Random-Access Memory) and ROM (Read-Only Memory), EPROM (Erasable Programmable Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), flash Memory or other solid state storage technology, CD-ROM (Compact Disc Read-Only Memory), DVD (Digital Video Disc) or other optical storage, magnetic tape cartridge, magnetic tape, magnetic disk storage or other magnetic storage devices. Wherein:

the transceiver 102 is configured to broadcast first information, where the first information includes a vehicle identifier of a vehicle to which the vehicle-mounted bluetooth device belongs.

In one example, the vehicle identification includes a UUID.

In one example, the vehicle identification includes a license plate number.

In one example, the transceiver 102 is configured to: broadcasting the first information if the vehicle is turned off.

Referring to fig. 11, a schematic structural diagram of a bluetooth base station 110 according to an embodiment of the present application is shown, for example, the bluetooth base station may be configured to perform the above-mentioned bluetooth base station-side information transmission method. Specifically, the bluetooth base station 110 may include: a processor 111, and a transceiver 112 connected to the processor 111; wherein:

the processor 111 includes one or more processing cores, and the processor 111 executes various functional applications and information processing by executing software programs and modules.

The transceiver 112 includes a receiver and a transmitter. Optionally, the transceiver 112 is a communication chip.

In one example, the bluetooth base station 110 further includes: a memory and a bus. The memory is connected to the processor by a bus. The memory may be used to store a computer program that the processor is used to execute to implement the various steps performed by the bluetooth base station in the above-described method embodiments.

the transceiver 112 is configured to receive first information from a vehicle-mounted bluetooth device, where the first information includes a vehicle identifier of a vehicle to which the vehicle-mounted bluetooth device belongs.

The processor 111 is configured to obtain position information of the vehicle.

The transceiver 112 is configured to send second information to a cloud platform, where the second information includes the vehicle identifier and the location information.

In one example, the vehicle identification includes a UUID.

In one example, the vehicle identification includes the license plate number.

In one example, the first information further comprises a CTE field for carrying a first radio frequency signal; the processor 111 is configured to: and estimating the position of the vehicle based on the first radio frequency signal to obtain the position information.

In one example, the bluetooth base station includes a first antenna and a second antenna; the processor 111 is configured to: determining a wavelength of the first radio frequency signal; acquiring a phase difference generated when the first antenna and the second antenna receive the first radio frequency signal; determining a distance difference from the vehicle to the first antenna and the second antenna according to the wavelength and the phase difference; determining an arrival angle of the vehicle to the Bluetooth base station according to the distance difference and the distance between the first antenna and the second antenna; and determining the position information of the vehicle according to the arrival angle.

In one example, the transceiver 112 is configured to: receiving the first information if the first information is scanned and the signal strength of the first information is greater than the first signal strength.

Referring to fig. 12, a schematic structural diagram of a cloud platform 120 according to an embodiment of the present disclosure is shown, for example, the cloud platform may be used to execute the cloud platform side information transmission method. Specifically, the cloud platform 120 may include: a processor 121, and a transceiver 122 connected to the processor 121; wherein:

the processor 121 includes one or more processing cores, and the processor 121 executes various functional applications and information processing by executing software programs and modules.

The transceiver 122 includes a receiver and a transmitter. Optionally, the transceiver 122 is a communication chip.

In one example, the cloud platform 120 further includes: a memory and a bus. The memory is connected to the processor by a bus. The memory may be used to store a computer program that the processor is configured to execute to perform the various steps performed by the cloud platform in the above-described method embodiments.

the transceiver 122 is configured to receive second information from the bluetooth base station, where the second information includes a vehicle identifier of a vehicle and location information of the vehicle.

The processor 121 is configured to store the second information.

In one example, the vehicle identification includes a UUID.

In one example, the vehicle identification includes a license plate number.

In one example, the processor 121 is further configured to: acquiring a user information set, wherein the user information set comprises at least one piece of user information; determining first user information corresponding to the vehicle identification from the at least one piece of user information, wherein the first user information is used for indicating a first terminal device; the transceiver 122 is configured to: and sending the position information to the first terminal equipment.

In one example, the transceiver 122 is configured to: receiving an information acquisition request from a second terminal device, wherein the information acquisition request is used for requesting to acquire the position information; and sending the position information to the second terminal equipment.

In an example, the information obtaining request further includes second user information, where the second user information is used to indicate the second terminal device; the processor 121 is configured to: acquiring a user information set, wherein the user information set comprises at least one piece of user information; storing the second user information in a case where the second user information is not included in the at least one user information.

The embodiment of the application also provides a computer-readable storage medium, wherein a computer program is stored in the storage medium, and the computer program is used for being executed by a processor of the vehicle-mounted Bluetooth device so as to realize the vehicle-mounted Bluetooth device side information transmission method.

The embodiment of the application also provides a computer readable storage medium, in which a computer program is stored, where the computer program is used for being executed by a processor of a bluetooth base station to implement the above information transmission method on the bluetooth base station side.

The embodiment of the application also provides a computer-readable storage medium, in which a computer program is stored, where the computer program is used for being executed by a processor of a cloud platform to implement the information transmission method on the cloud platform side.

The embodiment of the application further provides a chip, which comprises a programmable logic circuit and/or a program instruction, and when the chip runs on the vehicle-mounted Bluetooth device, the chip is used for realizing the information transmission method on the vehicle-mounted Bluetooth device side.

The embodiment of the application also provides a chip, which comprises a programmable logic circuit and/or a program instruction, and when the chip runs on the bluetooth base station, the chip is used for realizing the information transmission method on the bluetooth base station side.

The embodiment of the application further provides a chip, which comprises a programmable logic circuit and/or a program instruction, and when the chip runs on a cloud platform, the chip is used for realizing the information transmission method on the cloud platform side.

The embodiment of the application also provides a computer program product, and when the computer program product runs on the vehicle-mounted Bluetooth device, the information transmission method on the vehicle-mounted Bluetooth device side is realized.

The embodiment of the present application further provides a computer program product, which is used for implementing the information transmission method at the bluetooth base station side as described above when the computer program product runs on the bluetooth base station.

The embodiment of the application further provides a computer program product, and when the computer program product runs on a cloud platform, the method is used for realizing the information transmission method on the cloud platform side.

Those skilled in the art will recognize that, in one or more of the examples described above, the functions described in the embodiments of the present application may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

The above description is only exemplary of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements and the like that are made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An information transmission method is applied to a vehicle-mounted Bluetooth device, and comprises the following steps:

2. The method of claim 1, wherein the vehicle identification comprises a Universally Unique Identifier (UUID).

3. The method of claim 1 or 2, wherein the vehicle identification comprises a license plate number.

4. The method of any of claims 1 to 3, wherein the broadcasting the first information comprises:

broadcasting the first information if the vehicle is turned off.

5. An information transmission method, applied to a bluetooth base station, the method comprising:

acquiring position information of the vehicle;

6. The method of claim 5, wherein the vehicle identification comprises a Universally Unique Identifier (UUID).

7. The method of claim 5 or 6, wherein the vehicle identification comprises the license plate number.

8. The method of any of claims 5 to 7, wherein the first information further comprises a single tone extended CTE field for carrying the first radio frequency signal; the acquiring of the position information of the vehicle includes:

and estimating the position of the vehicle based on the first radio frequency signal to obtain the position information.

9. The method of claim 8, wherein the bluetooth base station comprises a first antenna and a second antenna; estimating the position of the vehicle based on the first radio frequency signal to obtain the position information, including:

determining a wavelength of the first radio frequency signal;

acquiring a phase difference generated when the first antenna and the second antenna receive the first radio frequency signal;

determining a distance difference from the vehicle to the first antenna and the second antenna according to the wavelength and the phase difference;

determining an arrival angle of the vehicle to the Bluetooth base station according to the distance difference and the distance between the first antenna and the second antenna;

and determining the position information of the vehicle according to the arrival angle.

10. The method according to any one of claims 5 to 9, further comprising:

receiving the first information if the first information is scanned and the signal strength of the first information is greater than the first signal strength.

11. An information transmission method is applied to a cloud platform, and the method comprises the following steps:

and storing the second information.

12. The method of claim 11, wherein the vehicle identification comprises a Universally Unique Identifier (UUID).

13. The method of claim 11 or 12, wherein the vehicle identification comprises a license plate number.

14. The method according to any of claims 11 to 13, wherein after receiving the second information from the bluetooth base station, further comprising:

acquiring a user information set, wherein the user information set comprises at least one piece of user information;

determining first user information corresponding to the vehicle identification from the at least one piece of user information, wherein the first user information is used for indicating a first terminal device;

and sending the position information to the first terminal equipment.

15. The method according to any one of claims 11 to 14, further comprising:

receiving an information acquisition request from a second terminal device, wherein the information acquisition request is used for requesting to acquire the position information;

and sending the position information to the second terminal equipment.

16. The method according to claim 15, wherein the information acquisition request further includes second user information, and the second user information is used for indicating the second terminal device; after receiving the information acquisition request from the second terminal device, the method further includes:

storing the second user information in a case where the second user information is not included in the at least one user information.

17. An information transmission apparatus provided in a vehicle-mounted bluetooth device, the apparatus comprising:

18. The apparatus of claim 17, wherein the vehicle identification comprises a Universally Unique Identifier (UUID).

19. The apparatus of claim 17 or 18, wherein the vehicle identification comprises a license plate number.

20. The apparatus according to any one of claims 17 to 19, wherein the first information broadcasting module is configured to:

broadcasting the first information if the vehicle is turned off.

21. An information transmission apparatus provided in a bluetooth base station, the apparatus comprising:

22. The apparatus of claim 21, wherein the vehicle identification comprises a Universally Unique Identifier (UUID).

23. The apparatus of claim 21 or 22, wherein the vehicle identification comprises the license plate number.

24. The apparatus of any of claims 21 to 23, wherein the first information further comprises a single tone extended CTE field for carrying the first radio frequency signal; the position information obtaining module is configured to:

25. The apparatus of claim 24, wherein the bluetooth base station comprises a first antenna and a second antenna; the position information obtaining module is configured to:

determining a wavelength of the first radio frequency signal;

26. The apparatus according to any one of claims 21 to 25, wherein the first information receiving module is configured to:

27. An information transmission apparatus provided in a cloud platform, the apparatus comprising:

28. The apparatus of claim 27, wherein the vehicle identification comprises a Universally Unique Identifier (UUID).

29. The apparatus of claim 27 or 28, wherein the vehicle identification comprises a license plate number.

30. The apparatus of any one of claims 27 to 29, further comprising:

the system comprises a user information acquisition module, a user information acquisition module and a user information processing module, wherein the user information acquisition module is used for acquiring a user information set, and the user information set comprises at least one piece of user information;

the user information determining module is used for determining first user information corresponding to the vehicle identifier from the at least one piece of user information, wherein the first user information is used for indicating first terminal equipment;

and the position information sending module is used for sending the position information to the first terminal equipment.

31. The apparatus of any one of claims 27 to 30, further comprising:

an obtaining request receiving module, configured to receive an information obtaining request from a second terminal device, where the information obtaining request is used to request to obtain the location information;

and the position information sending module is used for sending the position information to the second terminal equipment.

32. The apparatus according to claim 31, wherein the information acquisition request further includes second user information, and the second user information is used to indicate the second terminal device; the device further comprises:

a user information storage module, configured to store the second user information when the at least one piece of user information does not include the second user information.

33. An in-vehicle bluetooth device, characterized in that the in-vehicle bluetooth device comprises: a processor, and a transceiver coupled to the processor; wherein:

34. A bluetooth base station, characterized in that the bluetooth base station comprises: a processor, and a transceiver coupled to the processor; wherein:

the processor is used for acquiring the position information of the vehicle;

35. A cloud platform, the cloud platform comprising: a processor, and a transceiver coupled to the processor; wherein:

the processor is configured to store the second information.

36. A computer-readable storage medium, characterized in that a computer program is stored in the storage medium for execution by a processor of a vehicle-mounted bluetooth device to implement the information transmission method according to any one of claims 1 to 4.

37. A computer-readable storage medium, in which a computer program is stored, the computer program being adapted to be executed by a processor of a bluetooth base station to implement the information transmission method according to any one of claims 5 to 10.

38. A computer-readable storage medium, characterized in that a computer program is stored in the storage medium for execution by a processor of a cloud platform to implement the information transmission method according to any one of claims 11 to 16.