Wireless sensor network (WSN)-based staff tracking and monitoring system for petrochemical sulfur-containing device

Abstract

The invention discloses a wireless sensor network (WSN)-based staff tracking and monitoring system for a petrochemical sulfur-containing device. A sulfur-containing device monitoring area is divided into a plurality of monitoring cells (2). A plurality of sensor nodes (1) and a sink node (6) of the sensor nodes (1) are deployed in each monitoring cell (2). The sink node (6) is connected with an intra-plant computer network (5) through a gateway node (4). A portable hydrogen sulfide (H2S) detector capable of acquiring the concentration of H2S at the position of the detector and performing positioning and information transmission through wireless communication modules of the sensor nodes (1) is provided. By the system, the concentration of the H2S and the position and safety of staff on the scene can be monitored in a centralized way, and H2S poisoning accidents can be effectively prevented.

Description

technical field [0001] The invention relates to an on-site monitoring device for petrochemical production, in particular to a WSN-based employee tracking and monitoring system for petrochemical sulfur-containing devices. Background technique [0002] In the petrochemical industry, sulfur is the most important and most abundant non-hydrocarbon element in petroleum, and hydrogen sulfide (H 2 S) exists in every link of oil exploration, refining and processing, and is the most important chemical poison in petrochemical enterprises. H 2 The possibility and prevalence of S poisoning in the petrochemical industry is much higher than in other industries. With the increase in the processing of imported high-sulfur crude oil by oil companies, H 2 The prevention and treatment of S poisoning has become an important issue for enterprises to improve occupational safety and health. In the face of H2S hazards, monitoring the status of sulfur-containing substances in the production proce...

AI Technical Summary

Problems solved by technology

[0004] 1. Chemical method: that is, through on-site sampling, and then measure the sampled samples in the laboratory, and also on-site; the advantage of this method is that the measurement accuracy is high; but this method is cumbersome. If it is not timely, it will sometimes bring disadvantages such as danger to the measuring personnel.

[0005] 2. Electronic direct measurement method: using semiconductor gas sensor, it has the advantages of rapid measurement, convenience for on-site use, and rich functions such as alarm; but the measurement error is large and the price is expensive

However, since the monitoring terminal and the main control terminal use wired communication, the communication relies heavily on the infrastructure

At the same time, due to wiring restrictions in the design, the amount of wiring and rerouting is large, the lines are easily damaged, and the nodes in the network cannot be moved.

Especially when it is necessary to connect nodes that are far apart, the wiring construction of laying dedicated communication lines is difficult, expensive, and time-consuming, forming a serious bottleneck for the rapidly expanding networking demand

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