Method, device and system for cooperative work of wireless sensor network nodes
A sensor node and wireless sensor technology, applied in network topology, wireless communication, network traffic/resource management, etc., can solve problems such as increasing system power consumption, reducing sensor node work efficiency, and decreasing sensor node response sensitivity, so as to reduce power consumption. consumption, improve response sensitivity, and improve work efficiency
Active Publication Date: 2015-05-13
北京必创科技股份有限公司
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In this way, the central control unit controls each sensor node to work together, and the sensor nodes need to interact with the central control unit, and are controlled by the central control unit, so that the sensitivity of the sensor node to the event response decreases, thereby reducing the work efficiency of the sensor node; further Specifically, for wireless sensor networks for forest fire prevention and environmental monitoring, each sensor node sends a temperature alarm message to the central control unit when the monitored temperature data exceeds the temperature data threshold, and in practical applications, for sensor nodes within a certain geographical range , only one sensor node is required to send temperature alarm information for notification, and the existing alarm method increases the power consumption of the system
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[0049] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0050] There are two modes of cooperative work for existing wireless sensor network nodes. One cooperative work mode is that the sensor nodes can directly work as monitored equipment and collect relevant information. For example, for wireless sensor networks for forest fire prevention and environmental monitoring, collaborative work The working sensor nodes directly collect the temperature information of the surrounding environment. Another way of cooperating is that the sensor nodes are installed on the monitored equipment. For example, the sensor nodes are installed on each monitored motor to collect the operating status information of the monitored equipment. , but the cooperative work between the sensor nodes in the above two ways is c...
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The invention discloses a method, device and system for the cooperative work of wireless sensor network nodes. A sensor node which is in an awake state receives wireless information which is sent by other sensor nodes and carries the current operating state identification of the monitored equipment within a preset monitoring period; the wireless information is analyzed, if the current operating state identification of the monitored equipment is that the sensor node is not in an operating state, a physical signal of the monitored equipment is acquired; the acquired physical signal is converted into a digital signal, and the digital signal is read according to the preset interval, the wireless information which contains the current operating state identification of the monitored equipment is generated and sent; and after determining that the operation is completed or the current operating state identification of any monitored equipment is that the sensor node is in the operating state, an asleep counter is triggered and set, the sensor node is set to be in an asleep state, and after the asleep counter counts, the sensor node is awakened. By application of the invention, the working efficiency of the sensor node can be improved.
Description
technical field [0001] The present invention relates to wireless sensor network (WSN, Wireless Sensor Network) technology, in particular to a method, device and system for wireless sensor network nodes to work together. Background technique [0002] A wireless sensor network is a wireless network composed of a large number of stationary or mobile sensor nodes through self-organization and multi-hop. Through data collection, data processing and wireless communication, its purpose is to work together to complete preset application tasks. The nodes can transmit the collected data in real time, and have the characteristics of fast construction and convenient deployment, and are not easily restricted by the monitoring environment. application. [0003] For different wireless sensor networks, their collaborative work methods may also be different. For example, for wireless sensor networks for forest fire prevention and environmental monitoring in virgin forests, a large number of...
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IPC IPC(8): H04W24/00H04W28/16H04W52/02H04W84/18
CPCY02D30/70
Inventor 张俊辉罗银生刘琪
Owner 北京必创科技股份有限公司