Infrared array number-of-personnel sensor-based counting method and apparatus

A technology of array sensor and counting method, applied in the direction of instrument, calculation, time register, etc., can solve the problems of high price and high parameter requirements, achieve the effect of strong anti-damage ability, high recognition accuracy, and suitable for application and promotion

Active Publication Date: 2017-04-26
JINAN SINE LEAD ELECTRONICS TECH
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Problems solved by technology

This kind of sensor has high counting accuracy, but it is expensive. It needs good hardware and software to realize the identification algorithm. At the same time, it has high requirements for environmental parameters such as the illumination of the detection area. It is mainly used in occasions that require high accuracy of counting people.

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  • Infrared array number-of-personnel sensor-based counting method and apparatus
  • Infrared array number-of-personnel sensor-based counting method and apparatus
  • Infrared array number-of-personnel sensor-based counting method and apparatus

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the drawings and embodiments.

[0029] According to the Seebeck effect, at the junction of two different materials, when their temperature is different, current will be generated in the closed loop circuit composed of the two materials. This phenomenon is widely used in temperature measurement of thermocouples.

[0030] A thermopile or thermoelectric array is composed of many thermocouple elements, and each thermocouple element is a filament composed of two different thermosensitive materials. When the temperature at both ends of the filament is different, a voltage is generated across the filament. The hot nodes are concentrated in a very thin common absorption area, the measurement area. The cold node is located on a high-quality heat sink connected to the surrounding environment.

[0031] Such as figure 1 As shown, the schematic diagram of the structure of the 8 × 8 thermopile array infrared senso...

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Abstract

An infrared array number-of-personnel sensor-based counting method and apparatus comprises the following steps: processing an output signal of an infrared array sensor arranged above a door, identifying the contour of human bodies, and tracking the movement direction of the contour; and judging personnel goes in or out according to the movement track of the contour to realize counting of personnel access to the door. A counting apparatus comprises a single-chip microcomputer system, and the infrared array sensor, a PIR sensor and a power supply circuit which are connected with the single-chip microcomputer system, and the single-chip microcomputer system acquires the infrared image of a detection area through the infrared array sensor, and detects whether personnel passes by the door or not through the PIR sensor. The counting method and the counting apparatus solve the problem of low detection precision of infrared emission and reception sensors in the process of multiple persons passing through the door, has the advantages of multi-target tracking, high identification precision and low power dissipation, is difficult to damage due to high installing position, has substantial advantages, and adapts to application promotion.

Description

Technical field [0001] The present invention relates to a method and device for counting people, and more specifically, to a method and device for counting people based on an infrared array people sensor. Background technique [0002] The people sensor, also known as the passenger flow counter, is a sensor that counts the number of people passing by. It is widely used in various intelligent control systems. Common people sensors mainly have two types: infrared through-beam and video recognition. [0003] The infrared through-beam people sensor includes a transmitter and a receiver, which are installed on both sides of the gate. The transmitting end produces two infrared rays, and the receiving end is mainly a reversible counter. By measuring the difference in the sequence of blocking the two infrared rays when the person passes by, the direction of the person's entry and exit is determined; the number of persons entering and exiting the sensor is calculated by counting the number...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07C9/00G06K9/00G06K9/40G06K9/46
CPCG07C9/00G06V40/103G06V10/30G06V10/44
Inventor 黄程云
Owner JINAN SINE LEAD ELECTRONICS TECH
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