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Fault-tolerant algorithm of human body sensor

A human sensor and algorithm technology, applied in the field of fault-tolerant algorithms for human sensors, can solve problems such as energy waste applications, and achieve the effects of reducing impact, increasing hardware costs, and simple and effective algorithms

Inactive Publication Date: 2013-09-04
慈溪思达电子科技有限公司
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Problems solved by technology

[0003] At present, the intelligent control of lighting mainly uses infrared pyroelectric sensors or microwave Doppler sensors, because these two sensors can only detect dynamic human bodies, so they are only used in public places such as corridors and aisles, and waste energy in classrooms and offices. Serious occasions are not applied

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  • Fault-tolerant algorithm of human body sensor

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings.

[0015] refer to figure 1 -2, the human body sensor is provided with a power supply circuit 2 providing a suitable DC power supply, a microprocessor 1 for centralized control, a human body infrared sensor 3 and a microwave Doppler sensor 4 connected to the microprocessor 1 .

[0016] The human body infrared sensor 3 detects the infrared radiation signal emitted by the human body, and a human body infrared temperature sensor can be used. This sensor adopts infrared thermal imaging technology and is designed into a pixel matrix structure, and each pixel corresponds to a block of the detection area. The output data of each pixel represents the average temperature of the area, so static and dynamic human bodies can be detected.

[0017] The human body infrared sensor 3 can also be an infrared pyroelectric sensor. This type of sensor works by detecting infrared radiation f...

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Abstract

Disclosed is a fault-tolerant algorithm of a human body sensor. The human body sensor is provided with a power circuit, a microprocessor, a human body infrared sensor body which is connected with the microprocessor, a microwave Doppler sensor, a switch driving circuit and a control switch which is connected with the switch driving circuit. The fault-tolerant algorithm set by the microprocessor comprises the following steps that (1) under the situation that the control switch is connected, the microprocessor conducts N times of sampling on the human body infrared sensor body in the sampling period T1, and if the number of times when a human body is detected is zero, then the step 2 is executed; (2) the microprocessor turns off the control switch and conducts M times of sampling on the microwave Doppler sensor in the delaying time T2, and if the number of times when a human body is detected is zero, then the step 3 is executed; otherwise, the microprocessor conducts the control switch completely again and the step 1 is executed; (3) the microprocessor turns off the control switch completely, and conducts N times of sampling on the human body infrared sensor body in the sampling period T1, if the number of times when the human body is detected is not zero, the microprocessor conducts the control switch and the step 1 is executed.

Description

technical field [0001] The invention relates to a fault-tolerant algorithm of a human body sensor, which belongs to the field of sensor data processing. Background technique [0002] my country is a country with a large energy shortage, and the power gap is also very large. Governments at all levels in our country are also actively advocating the actions of citizens to "increase the temperature of the air conditioner by one degree", and adopt a number of measures such as "turning off the landscape lights" and "turning on and off the street lights". In addition to the weak awareness of energy saving, another more important reason for the waste of electric energy is that the hardware equipment for energy saving cannot keep up. Focusing on the overall situation of energy saving and environmental protection, intelligent control of lighting is imperative. [0003] At present, the intelligent control of lighting mainly uses infrared pyroelectric sensors or microwave Doppler sens...

Claims

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Application Information

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IPC IPC(8): H05B37/02
CPCY02B20/40
Inventor 刘瑜程晓东
Owner 慈溪思达电子科技有限公司
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