Sanjian Technology Overview Sanjian Technology integrates passive infrared detection technology, microwave detection technology and microprocessor signal analysis technology into one. The signal passes through the microprocessor's "intelligent" high-speed analysis, and then makes a judgment process, so that the detector achieves artificial intelligence, thereby minimizing false alarms and greatly improving the reliability of the detector.
Comparison and Analysis of Shuangjian Technology and Sanjian Technology The common Shuangjian detector sends an alarm signal when both infrared and microwave detection technologies detect the target. This kind of circuit processing method is easier if the microwave is more susceptible to interference. Caused false positives. The use of microprocessor technology not only analyzes the signal waveforms detected by the two detection technologies, but also analyzes the time relationship between the two signals, that is, automatically determines the alarm conditions based on the time intervals between infrared and microwave triggering. To eliminate false alarms caused by certain low frequency and microwave interference. In this way, only the signal that triggers the infrared detection and then triggers the microwave detection will trigger an alarm. Therefore, after the microwave has played the infrared detector, most of the interference signals can be correctly judged to avoid false alarms.
Why do you need Sanjian detector?
Because the influence of the external environment on the detector is relatively large, the false alarm may be caused by the detector under the conditions of strong wind, sunlight, flying birds or other small animals. Therefore, the detector is generally installed in the indoor environment. However, only when the intruder enters the room will the alarm be triggered, and the intruder will not be effectively blocked outside the door. Therefore, there is an urgent need for a detector on the market to be able to pre-alarm the intruder before it enters the room. Moving, blocking the intruder outdoors, this is an outdoor detector. Due to the large number of factors affecting the outdoor environment, outdoor detectors have higher anti-false alarm capability than common detectors. Two or even three infrared sensors are used inside the detector. The double-window structure is used. When these sensors are judged to have a true human invasion, they will only alarm. The use of this technology can not only resist strong light (≥1 million Lux, but only tens of thousands of Lux for outdoor detectors), and it can resist the influence of strong wind, small animals, external noise and various adverse climates, and truly meet the requirements of outdoor protection. Claim.
The principle of the triple-chip technology detector microprocessor signal analysis technology is the use of computer single-chip microprocessor. There are multiple forms of acknowledgement patterns stored on a single chip to identify intruder signals. Through nearly 30 years of long-term experience, the developers have selected tens of thousands of signals to imitate intruders, stored them in a single-chip computer, and programmed them. When any signal that can trigger infrared and microwave detectors is detected by the detector, it is digitally converted and transmitted to the microprocessor. In the microprocessor, these signals are compared with the intruder signal files stored in the single chip of the computer. If the signal is in line with the signal program of the intruder stored in the computer single chip signal file, the microprocessor is judged. After the alarm signal will be issued, otherwise it will not alarm.
Adaptive Threshold Technology Working Principle Built-in microprocessors can also use adaptive detection threshold processing technology. Its working principle is: The microprocessor "analyzes" various signals in the field, performs analog-to-digital conversion processing on the input signals, and automatically adjusts the detection threshold to shield various noise interference sources so that the detector can accurately recognize the signal. Human intrusion and noise signals increase the resistance to false alarms.
It can be seen from this that Sanjian technology detectors can use microprocessor mode confirmation to make the microprocessor signal analysis technology highly intelligent, which can further reduce the false alarm rate of the detector.
Comparison and Analysis of Shuangjian Technology and Sanjian Technology The common Shuangjian detector sends an alarm signal when both infrared and microwave detection technologies detect the target. This kind of circuit processing method is easier if the microwave is more susceptible to interference. Caused false positives. The use of microprocessor technology not only analyzes the signal waveforms detected by the two detection technologies, but also analyzes the time relationship between the two signals, that is, automatically determines the alarm conditions based on the time intervals between infrared and microwave triggering. To eliminate false alarms caused by certain low frequency and microwave interference. In this way, only the signal that triggers the infrared detection and then triggers the microwave detection will trigger an alarm. Therefore, after the microwave has played the infrared detector, most of the interference signals can be correctly judged to avoid false alarms.
Why do you need Sanjian detector?
Because the influence of the external environment on the detector is relatively large, the false alarm may be caused by the detector under the conditions of strong wind, sunlight, flying birds or other small animals. Therefore, the detector is generally installed in the indoor environment. However, only when the intruder enters the room will the alarm be triggered, and the intruder will not be effectively blocked outside the door. Therefore, there is an urgent need for a detector on the market to be able to pre-alarm the intruder before it enters the room. Moving, blocking the intruder outdoors, this is an outdoor detector. Due to the large number of factors affecting the outdoor environment, outdoor detectors have higher anti-false alarm capability than common detectors. Two or even three infrared sensors are used inside the detector. The double-window structure is used. When these sensors are judged to have a true human invasion, they will only alarm. The use of this technology can not only resist strong light (≥1 million Lux, but only tens of thousands of Lux for outdoor detectors), and it can resist the influence of strong wind, small animals, external noise and various adverse climates, and truly meet the requirements of outdoor protection. Claim.
The principle of the triple-chip technology detector microprocessor signal analysis technology is the use of computer single-chip microprocessor. There are multiple forms of acknowledgement patterns stored on a single chip to identify intruder signals. Through nearly 30 years of long-term experience, the developers have selected tens of thousands of signals to imitate intruders, stored them in a single-chip computer, and programmed them. When any signal that can trigger infrared and microwave detectors is detected by the detector, it is digitally converted and transmitted to the microprocessor. In the microprocessor, these signals are compared with the intruder signal files stored in the single chip of the computer. If the signal is in line with the signal program of the intruder stored in the computer single chip signal file, the microprocessor is judged. After the alarm signal will be issued, otherwise it will not alarm.
Adaptive Threshold Technology Working Principle Built-in microprocessors can also use adaptive detection threshold processing technology. Its working principle is: The microprocessor "analyzes" various signals in the field, performs analog-to-digital conversion processing on the input signals, and automatically adjusts the detection threshold to shield various noise interference sources so that the detector can accurately recognize the signal. Human intrusion and noise signals increase the resistance to false alarms.
It can be seen from this that Sanjian technology detectors can use microprocessor mode confirmation to make the microprocessor signal analysis technology highly intelligent, which can further reduce the false alarm rate of the detector.
Diffused Silicon Pressure Sensor
The diffusion silicon Pressure Sensor adopts the diffusion silicon piezoresistive pressure sensor with stainless steel isolation film as the signal measuring element, the signal processing circuit is located in the stainless steel housing, the sensor signal is converted into standard 4-20mA current or RS485 signal output through the professional signal conditioning circuit. Widely used in petroleum, chemical, metallurgy, electric power and other industrial process on-site measurement and control.
Diffused Silicon Pressure Sensor,Silicon Pressure Sensor,Silicon Pressure Transducer,Silicon Diaphragm Pressure Sensor
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