Intelligent access system field intensity equivalent calibration method

A technology of intelligent entry and field strength, applied in the field of efficiency calibration, can solve the problems such as the inability to achieve full coverage of the interior space and limited use occasions, and achieve the effect of simplifying equipment accuracy requirements, optimizing design, and reducing execution difficulty.

Pending Publication Date: 2022-04-26
DONGFENG MOTOR GRP
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Problems solved by technology

At the same time, the use of the system is limited, and the calibration of the interior space cannot achieve full coverage

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  • Intelligent access system field intensity equivalent calibration method
  • Intelligent access system field intensity equivalent calibration method
  • Intelligent access system field intensity equivalent calibration method

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[0039] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0040] In the examples of the present invention, "first", "second", etc. are used to distinguish different objects, rather than to describe a specific order or sequence.

[0041] The low-frequency field strength of the intelligent entry system is continuously distributed in space, and continuous point measurement cannot be achieved by means of engineering testing. At the same time, there is no n...

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Abstract

The invention discloses a field intensity equivalent calibration method for an intelligent access system, which belongs to the technical field of radio frequency field intensity calibration, and comprises the following steps of: determining measurement areas by adopting a finite element space distribution method based on a standard model of the intelligent access system, and performing field intensity equivalent calibration on each measurement area; wherein the measurement area comprises an automobile body two-side calibration area, a trunk outer calibration area, an in-automobile instrument desk calibration area, a front-row seat calibration area, a rear-row seat calibration area, a trunk calibration area, a floor calibration area, an automobile door leakage area and a back door leakage area. According to the method, an automobile intelligent access system calibration scheme is optimally designed, a finite element fractional step method is adopted, and complex equipment and software are not needed, so that the equipment precision requirement is simplified, the execution difficulty is reduced, and the coverage area of field intensity calibration is increased.

Description

technical field [0001] The invention belongs to the technical field of radio frequency field strength calibration, and more particularly relates to an equivalent calibration method for field strength of an intelligent entry system. Background technique [0002] In the development process of the intelligent entry system, it is necessary to calibrate the low-frequency 125KHz field strength distribution in the three-dimensional space inside and outside the vehicle. The traditional method is to use a three-dimensional locator for point-by-point positioning (X / Y / Z) testing. On the one hand, the efficiency is low, and the other method Positioning is limited by the vehicle's interior and exterior surfaces and space and cannot be fully covered. [0003] Refer to the patent application with the publication number CN101858942B, which discloses a low-frequency calibration system and method for a keyless access control system for a vehicle, using a three-dimensional mechanical locator, ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/08
CPCG01R29/08G01R29/0892
Inventor 贾晓龙李文芳汪炜杜佩瑾彭晋
Owner DONGFENG MOTOR GRP
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