Industrial production workshop security positioning system and method based on wireless sensor network

Abstract

An industrial manufacture workshop security and positioning system and method based on the wireless sensor network, which relates to the industrial manufacture security and positioning technology field. The present invention is comprised of a mobile node (1), a signal marking node (2) arranged in the manufacture workshop, and a sink node (3) arranged in the monitoring room; a 2.4 G wireless communication method connection is adopted between nodes, and the mobile node transmits the positioning request command, receives the reply signal of the signal marking node within the wireless transmission distance, and acquires the position information through the positioning method of the minimum loop segment area center based on the intensity of the received signal, to judge whether to alarm according to the information, and to transmit the information to the sink node; the monitoring host computer is communicated with the sink node through a serial port, the real-time position of the mobile node is displayed, and the relevant information is stored. The present invention has the advantages that only the capability of the communication between the mobile node and the adjacent signal marking nodes can realize positioning, the extra hardware facilities are not required to be added in the system and the node, and the system cost and power consumption are reduced.

Description

technical field [0001] The invention relates to the technical field of industrial production security positioning, and in particular provides a wireless sensor network-based industrial production workshop security positioning system and method. Background technique [0002] In the industrial production workshop, based on the consideration of safe production and technological process confidentiality, the entire production workshop is usually divided into different functional areas, such as: safe area (free flow area), key protection area (restricted area) and dangerous area ( restricted area), etc. For personnel entering the production workshop, security positioning is required to ensure that they will not enter functional areas without permission. The traditional method mostly adopts the method of installing closed-circuit monitoring and warning signs, but this method is relatively expensive, requires a lot of manpower and material resources, and can only be monitored passi...

AI Technical Summary

Problems solved by technology

There are two main problems in this positioning system. One is that the positioning accuracy is low, generally on the order of tens of meters, which cannot fully meet the application requirements.

In addition, the area of ​​the industrial production workshop is usually relatively large, while the communication distance of the electronic identification card is relatively short, and multi-hop communication cannot be realized, so it is generally not suitable for the application of positioning in the industrial production workshop

Images