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Bluetooth signal identification method and Bluetooth signal identification system

A technology of bluetooth signal and identification method, applied in the field of automobile control, can solve problems such as the failure of bluetooth smart key

Pending Publication Date: 2020-10-20
UNITED AUTOMOTIVE ELECTRONICS SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a bluetooth signal identification method and a bluetooth signal identification system to solve the problem that the existing bluetooth smart keys are prone to failure due to external interference

Method used

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  • Bluetooth signal identification method and Bluetooth signal identification system
  • Bluetooth signal identification method and Bluetooth signal identification system
  • Bluetooth signal identification method and Bluetooth signal identification system

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0086] Example 1: If the first signal value obtained by the first off-vehicle Bluetooth measuring unit 111 is within the second interval, and the second off-vehicle Bluetooth measuring unit 112 and the third off-vehicle Bluetooth measuring unit 113 and the first signal value obtained by the fourth off-vehicle Bluetooth measurement unit 114 are both within the first range, then the control module judges that the first in-vehicle Bluetooth measurement unit 121 and the second in-vehicle Bluetooth measurement unit Whether the second signal values ​​obtained by the internal bluetooth measurement unit 122 are greater than the sum of the second threshold and the first extension value, if so, the control module determines that the specific position is located in the vehicle, if not, then The control module determines that the specific location is outside the vehicle. In this example 1, when the first signal value obtained by the first off-vehicle Bluetooth measurement unit 111 is with...

example 2

[0087] Example 2: If the first signal value obtained by the second off-vehicle Bluetooth measuring unit 112 is within the second interval, and the first off-vehicle Bluetooth measuring unit 111 and the third off-vehicle Bluetooth measuring unit 113 and the first signal value obtained by the fourth off-vehicle Bluetooth measurement unit 114 are both within the first interval, then the control module judges that the second signal value obtained by the first in-vehicle Bluetooth measurement unit 121 Whether the value is greater than the sum of the second threshold and the first extension, and whether the second signal value obtained by the second in-vehicle Bluetooth measurement unit 122 is greater than the second threshold and the second extension If yes, the control module determines that the specific location is inside the vehicle, if not, the control module determines that the specific location is outside the vehicle. In this example 2, when the first signal value obtained by...

example 3

[0088] Example 3: If the first signal values ​​obtained by the first off-vehicle Bluetooth measurement unit 111 and the second off-vehicle Bluetooth measurement unit 112 are both within the second interval, and the third off-vehicle Bluetooth measurement If the first signal values ​​obtained by unit 113 and the fourth off-vehicle Bluetooth measurement unit 114 are both within the first interval, then the control module judges that the first in-vehicle Bluetooth measurement unit 121 and the second in-vehicle Bluetooth measurement unit Whether the second signal values ​​obtained by the in-vehicle Bluetooth measurement unit 122 are greater than the sum of the second threshold and the first extension value, if so, the control module determines that the specific position is located in the vehicle, if not, The control module then determines that the specific location is outside the vehicle. The first signal values ​​obtained by the first off-vehicle Bluetooth measuring unit 111 and ...

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PUM

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Abstract

The invention provides a Bluetooth signal identification method and a Bluetooth signal identification system. If a Bluetooth transmitting module is located in an area in a vehicle, a first signal value obtained by a Bluetooth measurement unit outside the vehicle is within a first threshold range; at the moment, whether a second signal value obtained by an in-vehicle Bluetooth measurement unit is larger than the sum of a second threshold value and a first preset value or not is judged, that is to say, a boundary strength threshold value is broadened, so that the influence of in-vehicle interference on the second signal value obtained by the in-vehicle Bluetooth measurement unit is reduced, and the accuracy of Bluetooth signal recognition and judgment is improved; if the Bluetooth transmitting module is located in an area outside the vehicle close to the vehicle, the first signal value obtained by the Bluetooth measurement unit outside the vehicle is not within the first threshold range,and whether the second signal value obtained by the Bluetooth measurement unit inside the vehicle is larger than the second threshold or not is judged, that is, the boundary strength threshold is reduced to the normal value equivalently, so that misjudgment of the position of the Bluetooth transmitting module outside the vehicle is avoided.

Description

technical field [0001] The invention relates to the technical field of automobile control, in particular to a bluetooth signal identification method and a bluetooth signal identification system. Background technique [0002] The existing smart key system PEPS (Passive Entry & Passive Start), also known as the keyless system, passive keyless entry start system, mainly consists of the vehicle communication and control system and the smart key RFID (Radio Frequency Identification) carried by the user for legal identification. ), also known as radio frequency identification, Smart Key or Fob. When the user enters the detection range of the vehicle with the smart key, the user only needs to directly pull the outer opening handle on the door or press the unlock button on the door handle, and the vehicle will actively identify and authenticate the legitimacy of the smart key. When the user enters the car, he only needs to press the start button, and the vehicle will actively ident...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R25/20
CPCB60R25/20B60R2325/101
Inventor 陈枭雄张亚林项康泰罗勇
Owner UNITED AUTOMOTIVE ELECTRONICS SYST