Analysis and Application of Sensor Alarm Threshold Adaptive Technology Based on Big Data Analysis
Tong Zhu, Zhanbin Wang, Shao Ke · Proceedings of the 2018 7th International Conference on Energy and Environmental Protection (ICEEP 2018) · 2018
In China, a multi-sensor intelligent alarm system based on the sensor identification technology has been widely used across the country and produces a wealth of information data.In the process of actual application, however, the alarm threshold of a traditional gas sensor is set at a fixed value, which often leads to false alarm.In some big cities, such false alarm has reduced the work efficiency of the danger-removal personnel, and affected the further promotion and application of the multi-sensor intelligent alarm system.The new data acquired by tens of millions of sensors are added every day and stored for a long time, so it is difficult to perform the analysis and judgment on the data with manual methods, and intelligent analysis and processing are urgently needed on this aspect.With the "Sensor Alarm Threshold Adaptive Technology Based on Big Data Analysis" presented in this paper, the prediction and judgment of the gas sensor threshold can be implemented through the "fast big data analysis", thereby realizing the self-adaption of the sensor alarm threshold.The actual application effects prove that it can effectively improve the efficiency of the multi-sensor intelligent alarm system. Working Principles and Deficiencies of a Single Gas Sensor Alarm SystemIn the field of intelligent alarm systems, the sensor-based automatic identification technology is essential.China has been trying to explore and practice for many years in this respect.Currently, the widely-applied and mature technology is the automatic recognition technology system based on the image video sensor.In terms of the gas sensor, however, most of the automatic recognition technologies are still stuck in the stage of setting of a fixed threshold as an alarm basis, which results in certain deficiencies in the actual application.Inflammable, explosive, and toxic gas leaks may occur during processing, production, transportation, and storage for industrialized large-scale production, resulting in frequent occurrence of fire, explosion, or poisoning.The combustible/toxic gas alarm has been widely used as an effective safety protection device [1] .In some big cities, however, false alarm have reduced the work efficiency of the danger-removal personnel, and affected the further promotion and application of the multi-sensor intelligent alarm system.Gas sensors can be roughly divided into three categories by the detection principle, namely: gas sensors making use of physical and chemical properties; gas sensors making use of physical properties; and gas sensors making use of electrochemical properties [2] .A single gas sensor alarm system is generally employed according to the working principle of directly monitoring whether the gas concentration exceeds the preset gas concentration threshold.The traditional method of