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Monitoring system for detecting number of accessing personnel by virtue of infrared ray array and application of monitoring system

A technology for inspecting personnel and monitoring systems. It is applied in the direction of individual input/output port registers, instruments, time registers, etc., which can solve problems such as the inability to meet the needs of statistics, and achieve strong applicability, rapid detection results, and increased safety effect

Inactive Publication Date: 2014-07-23
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, these detection methods based on pyroelectric infrared sensors cannot meet the needs of personnel counting when many people enter and exit the venue at the same time.

Method used

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  • Monitoring system for detecting number of accessing personnel by virtue of infrared ray array and application of monitoring system
  • Monitoring system for detecting number of accessing personnel by virtue of infrared ray array and application of monitoring system
  • Monitoring system for detecting number of accessing personnel by virtue of infrared ray array and application of monitoring system

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Experimental program
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Effect test

Embodiment 1

[0038] Such as Figure 1 to Figure 3As shown, a monitoring system for detecting the number of people entering and leaving by an infrared array includes a pyroelectric infrared sensor 5, a signal processing circuit 4, a power supply circuit 1, a serial interface circuit 2, a single-chip microcomputer 3 of a model STM32F105 and an overcrowding monitor, wherein , the single chip microcomputer 3 is connected with the power supply circuit 1, the serial interface circuit 2 and the signal processing circuit 4 respectively, the signal processing circuit 4 is connected with the pyroelectric infrared sensor 5, and the power supply circuit 1 is also connected with the serial interface circuit 2 and the pyroelectric infrared sensor respectively The sensor 5 is connected, and the serial interface circuit 2 is connected with the overcrowding monitor; according to the width of the door, the pyroelectric infrared sensor 5 selects 12 pyroelectric infrared sensors 5 containing a single thermoele...

Embodiment 2

[0041] Such as Figure 4 to Figure 6 As shown, an infrared array detects the monitoring system of the number of personnel entering and leaving, and the connection relationship is as described in Embodiment 1. The difference is that, according to the width of the door, the pyroelectric infrared sensor 5 selects 5 pyroelectric infrared sensors that contain dual pyroelectric elements. Pyroelectric infrared sensor 5, whose model is PD632, five pyroelectric infrared sensors 5 are arranged in a single row and arranged horizontally above the passageway where people pass by. The two pyroelectric elements contained in pyroelectric infrared sensor 5 are divided into front , and then set it on the route of the personnel. The signal processing circuit 4 processes the output signal of the pyroelectric infrared sensor 5 containing dual thermoelectric elements, and then outputs two channels of level-changing signals.

Embodiment 3

[0043] A method for detecting the number of people entering and leaving a construction elevator using a monitoring system that detects the number of people entering and leaving with an infrared array. The workflow is as follows: Figure 7 shown, including the following steps:

[0044] (1) Personnel entry and exit detection during the opening of the elevator door: According to the width of the construction elevator entrance and exit door of 130cm, 30 pyroelectric infrared sensors 5 containing dual thermoelectric elements are selected, the model is PD632, and 30 pyroelectric infrared sensors are selected. The sensors 5 are arranged in a single row and arranged horizontally above the passageway that the personnel pass by. The two pyroelectric elements contained in the pyroelectric infrared sensor 5 are arranged on the route of the personnel at the front and rear. The adjacent pyroelectric infrared sensor 5 The spacing distance is about 4.5cm. Described serial interface circuit 2...

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Abstract

The invention relates to a monitoring system for detecting the number of accessing personnel by virtue of an infrared ray array and application of the monitoring system. The monitoring system comprises pyroelectric infrared sensors, signal processing circuits, a power supply circuit, a serial interface circuit, a single-chip microcomputer and an overload monitor. According to the monitoring system, the pyroelectric infrared sensors are utilized for acquiring infrared rays emitted by a human body when people pass through the monitoring system, judging the accessing directions of people from the vertical direction and measuring and calculating the space width occupied by the infrared rays emitted by the human body, a space width value is compared with a shoulder-width value of the human body preset in a single-chip microcomputer program to calculate the number of the accessing personnel, and the overload monitor is utilized for controlling the operation and the stopping of a construction elevator so as to realize the safe operation of the construction elevator. The monitoring system is rapid and accurate in detection result, simple in structure and strong in applicability and is convenient to mount.

Description

technical field [0001] The invention relates to a monitoring system for detecting the number of people entering and leaving by an infrared ray array and an application thereof, belonging to the technical field of safety monitoring and statistics. Background technique [0002] For the needs of statistics or control, many occasions, such as elevators, construction elevators (also called construction elevators), venue entrances, station entrances, exhibition hall entrances, etc., require statistics of the specific number of personnel entering and exiting. Among them, elevators and construction elevators are for safety reasons. Considerations need to limit the number of occupants. Since the "door" for entry and exit in these occasions has a certain width but there is no gate restraint mechanism, the position, number and direction of people passing through this "door" at the same time are relatively random. Accurate statistics of entering and exiting this "door" "The number of p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07C9/00
Inventor 霍孟友邱朋
Owner SHANDONG UNIV
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