Person number detection device and method

Abstract

The invention discloses a person number detection device, which comprises a pyroelectric infrared sensor, a signal processing circuit, a microprocessor and an artificial neural network, wherein the pyroelectric infrared sensor is arranged at an elevator floor station and / or in an elevator cage; when the human bodies move or rock, the pyroelectric infrared sensor generates electrical signals and sends the electrical signals to the signal processing circuit; the signal processing circuit amplifies and compares the electrical signals sent by the pyroelectric infrared sensor in real time to generate pulse signals; the microprocessor detects the pulse signals in real time, and extracts the frequency, chaos and long pulse proportion of the pulse signals; the artificial neural network comprises an input layer, an output layer and at least one hidden layer; the input layer is provided with three neurons, which input the frequency, the chaos and the long pulse proportion of the pulse signals respectively; and the output layer has one neuron, the output of which is rounded to obtain the detected person number. The invention also discloses a person number detection method for the device. Thedevice has the characteristics of simple structure, low cost and a few occupied resources, and is simple and convenient for processing.

Description

technical field [0001] The invention relates to a device and method for detecting the number of people, in particular to a device and method for detecting the number of people at elevator landings and in elevator cars. Background technique [0002] Elevator Group Control System (Elevator Group Control System) is a system for optimal scheduling of multiple elevators in the same building. The elevator group control system pursues an optimal elevator scheduling scheme, such as the largest passenger transport capacity, the shortest passenger waiting time, and the lowest energy consumption for elevator operation. [0003] The elevator group control system is a non-linear system, which is mainly reflected in the randomness of the arrival and departure of passengers. It is very important for the elevator group control system to detect the number of people waiting for the elevator at the landing of each floor and the number of passengers in the elevator car. [0004] At present, t...

AI Technical Summary

Problems solved by technology

[0006] In short, at present, the number of people detected at the elevator landing or in the elevator car is estimated and predicted, and it is impossible to obtain more accurate data, so it cannot provide effective reference for the elevator group control system

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