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Event-driven coal mine underground wireless sensor network system

An event-driven, network system technology, applied in network topology, wireless communication, electrical components, etc., can solve the problems of limited energy, large quantity, and difficult replacement and maintenance, so as to reduce the number of communications, prolong the life of the network, and reduce the cost of collection Effect

Inactive Publication Date: 2017-02-01
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Traditional underground real-time WSN nodes in coal mines carry limited energy, are large in number, and difficult to replace and maintain. Therefore, reducing energy consumption has become the most critical goal in the system design process.

Method used

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  • Event-driven coal mine underground wireless sensor network system
  • Event-driven coal mine underground wireless sensor network system
  • Event-driven coal mine underground wireless sensor network system

Examples

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Embodiment Construction

[0052] The present invention will be further illustrated and described in detail below in conjunction with the accompanying drawings and embodiments.

[0053] (1) if figure 1 As shown, according to the working conditions of the wireless communication module, the sensor nodes are divided into: sending state, receiving state and dormant state. The sensor nodes can switch between the three states.

[0054] (2) When the monitoring data of a node in the event-driven coal mine underground WSN exceeds the threshold, an event is triggered. At this time, the node driven by the event enters the sending mode; the node in the dormant state receives a valid signal, which can make the node from the dormant state Transition to the receiving state; if a node in the sending state or receiving state does not transmit a signal for a period of time, the node will change from the sending state or receiving state to the dormant state.

[0055] (3) According to the coal mine safety regulations, 8...

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Abstract

The invention discloses an event-driven coal mine underground wireless sensor network system which comprises a base station device and an underground node device. An underground node wireless communication module comprises a sending state, a receiving state and a hibernation state. Three working states of the underground node wireless communication module can be converted to each other. An event-driven wireless sensor network in operation determines whether to trigger an event and transmit data to a base station by monitoring and judging whether data exceed a threshold value. The system has the characteristics of high communication efficiency and low operation energy consumption. According to the invention, the system is combined with coal mine underground safety production needs; through reasonable threshold setting and an improved routing protocol, the number of times of invalid communication among nodes is remarkably reduced; the communication efficiency is improved; the energy consumption of the nodes is reduced; the service life of a network is prolonged; collected useless data are reduced; in the case of an accident or alarm, useful alarm data can be quickly extracted; the event-driven network technology is applied to coal mine underground safety monitoring; and the system is an efficient coal mine safety monitoring system.

Description

technical field [0001] The invention relates to an event-driven underground wireless sensor network system in coal mines, in particular to the fields of wireless sensor network and wireless communication. Background technique [0002] Wireless sensor network (WSN) is the latest wireless monitoring network technology of modern intelligent automation, which is widely used in security monitoring fields such as personnel positioning and coal mine data collection. Traditional underground real-time WSN nodes in coal mines carry limited energy, are large in number, and are difficult to replace and maintain. Therefore, reducing energy consumption has become the most critical goal in the system design process. In order to solve the above problems, this paper proposes an event-driven coal mine underground WSN system. [0003] Event-driven WSN determines whether to trigger an event and transmit data to the base station by monitoring and judging whether the data exceeds the threshold d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/08H04W40/10H04W40/20H04W52/02H04W84/18
CPCH04W40/08H04W40/10H04W40/20H04W52/0225H04W84/18Y02D30/70
Inventor 刘晓阳乔智
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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