Memory, bluetooth intelligent terminal, distance calculation method and door opening control method

Abstract

The invention relates to a memory, a Bluetooth intelligent terminal, a distance calculation method and a door opening control method. The distance calculation method comprises the following steps that the Bluetooth intelligent terminal obtains the signal intensity value of receiving signals from Bluetooth entrance guard equipment in real time; a sliding window is opened; a first number of latest signal intensity values in the sliding window are obtained, wherein the first number is smaller than a second number relevant to the hardware performance of the bluetooth intelligent terminal; the weight value corresponding to each signal intensity value is obtained according to a prebuilt normal distribution model; the weighted average value of the first number of signal intensity values is calculated according to the weight value corresponding to each signal intensity value; the distance value of the Bluetooth intelligent terminal and the Bluetooth entrance guard equipment is calculated according to the weighted average value. By using the technical scheme disclosed by the method, the calculated distance value under the walking advancing condition of a user can be more accurate.

Description

technical field [0001] The invention relates to the field of smart communities, in particular to a memory, a Bluetooth smart terminal, a distance calculation method and a door opening control method. Background technique [0002] With the improvement of modern people's living standards and the development of communities, people have higher and higher demands on living conditions, and community safety precautions have also attracted more and more attention. With the rapid development of digital technology and network technology, access control technology has also developed rapidly. It has already surpassed the simple doorway and key management, and gradually developed into a complete set of access management system, which has become a solution to the security management of important department entrances and exits. effective measures. [0003] Since Bluetooth transmission enables short-range reading of signals, access control management systems are increasingly using Bluetoot...

AI Technical Summary

Problems solved by technology

Depending on the performance of the hardware, typically 18-32 signal strength values ​​need to be read, however, reading so many signal strength values ​​results in a longer time to collect sample points, and obviously, because the user is walking during the calculation Forward, so the longer the collection time takes, the greater the error in the calculated distance value

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