Bluetooth key positioning system and method based on Internet of Vehicles

A technology of bluetooth key and positioning method, applied in positioning, transmission system, radio wave measurement system and other directions, can solve problems such as low accuracy and achieve the effect of improving accuracy

Active Publication Date: 2020-02-04
北京四海万联科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the accuracy rate of the existing Bluetooth key system for the Internet of Vehicles to determine the position of the Bluetooth key is generally low, so improving the accuracy of the position determination of the Bluetooth key will help improve the reliability and convenience of the Bluetooth key

Method used

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  • Bluetooth key positioning system and method based on Internet of Vehicles
  • Bluetooth key positioning system and method based on Internet of Vehicles
  • Bluetooth key positioning system and method based on Internet of Vehicles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] A kind of bluetooth key positioning system based on Internet of Vehicles, see figure 1 ,include:

[0060] Bluetooth main module: installed in the car; the Bluetooth main module is used to establish a communication connection with the Bluetooth module on the Bluetooth key; the Bluetooth main module is also used to collect the Bluetooth signal strength measured by the Bluetooth slave module in real time, and complete the positioning of the Bluetooth key;

[0061] Specifically, the Bluetooth main module has a BLE Bluetooth function, and sends a communication signal in the form of broadcast, requesting to establish communication with the Bluetooth key.

[0062] Bluetooth key: equipped with a Bluetooth module; the Bluetooth key is also used to control the Bluetooth module to send Bluetooth signals in the form of broadcast;

[0063] Specifically, the Bluetooth key has a BLE Bluetooth function. The Bluetooth key can be a terminal or a device.

[0064] At least one Bluetooth...

Embodiment 2

[0068] A bluetooth key positioning method based on Internet of Vehicles, running on the above-mentioned system, see figure 2 , including the following steps:

[0069] S1: The Bluetooth main module sends a communication signal in the form of broadcast, and the Bluetooth module on the Bluetooth key establishes a communication connection with the Bluetooth main module after receiving the communication signal, and the Bluetooth main module stops broadcasting signals;

[0070] S2: The Bluetooth module on the Bluetooth key sends Bluetooth signals in the form of broadcast;

[0071] S3: The Bluetooth slave module measures the strength of the received Bluetooth signal in real time, and obtains the RSSI value x of the signal strength in the car including m pieces i The set X of : X=[x 1 ,x 2 ,...,x i ,...x m ], where x i is the RSSI value measured after placing the bluetooth key in the car for the ith time; assuming that the number of bluetooth slave modules is P, then Indica...

Embodiment 3

[0090] see Figure 4 , a kind of bluetooth key location method based on Internet of Vehicles, runs on above-mentioned system, comprises the following steps:

[0091] S21: The Bluetooth main module sends a communication signal in the form of broadcast, and the Bluetooth module on the Bluetooth key establishes a communication connection with the Bluetooth main module after receiving the communication signal, and the Bluetooth main module stops broadcasting signals;

[0092] S22: The Bluetooth module on the Bluetooth key sends Bluetooth signals in the form of broadcast;

[0093] S23: The Bluetooth slave module measures the strength of the received Bluetooth signal in real time, and obtains the RSSI value x of the signal strength in the car including m pieces i The set X of : X=[x 1 ,x 2 ,...,x i ,...x m ], where x i is the RSSI value measured after placing the bluetooth key in the car for the ith time; assuming that the number of bluetooth slave modules is P, then Indic...

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Abstract

The invention provides a Bluetooth key positioning system based on Internet of Vehicles. A Bluetooth master module is installed in a vehicle; the Bluetooth master module is used for establishing communication connection with a Bluetooth module on a Bluetooth key; the Bluetooth master module is also used for acquiring the Bluetooth signal intensity measured by the Bluetooth slave module in real time to complete Bluetooth key positioning; the Bluetooth key is provided with a Bluetooth module; the Bluetooth key is also used for controlling the Bluetooth module to send a Bluetooth signal in a broadcast form; at least one Bluetooth slave module is mounted in a vehicle; the Bluetooth slave module is used for measuring the intensity of a Bluetooth signal after receiving the Bluetooth signal initiated by the Bluetooth module in the Bluetooth key, and sending the obtained intensity of the Bluetooth signal to the Bluetooth master module, so that the system improves the accuracy of judging the position of the Bluetooth key.

Description

technical field [0001] The invention belongs to the technical field of the Internet of Vehicles, in particular to a Bluetooth key positioning system and method based on the Internet of Vehicles. Background technique [0002] The car networking Bluetooth key system mainly includes T-Box (Telematics BOX) with Bluetooth Low Energy (BLE, Bluetooth Low Energy) function, mobile phone and APP (application program) with BLE function. The car networking bluetooth key system has become more and more mature, and the popularity and utilization rate is gradually increasing. Therefore, it is the development trend of car networking to replace conventional radio frequency keys with bluetooth keys in the future. [0003] In the Bluetooth key system of the Internet of Vehicles, the location judgment of the Bluetooth key is very important. For example, when it is judged that the Bluetooth key is in the car, the user is allowed to start the engine. When it is judged that the Bluetooth key is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00H04B17/318G01S5/02G06N20/00H04W4/06H04W4/80
CPCG01S5/02G07C2209/63G06N20/00H04W4/06H04W64/006H04B17/318H04W4/80
Inventor 朱志凌陈亚川李迎春张杨何春乔向劲松本钰龙熊靖铭毛飞刘玉亿牟军万海涛
Owner 北京四海万联科技有限公司
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