Coal-mine gas monitoring system comprising wireless sensor network
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A sensor network and monitoring system technology, applied in mining equipment, mining equipment, earth-moving drilling, etc., can solve problems such as short delay, and achieve the effect of saving energy, large quantity, and reducing accidents
Inactive Publication Date: 2009-06-03
SHANDONG UNIV
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Embodiment 1
[0046] Embodiment 1: (system embodiment)
[0047] Examples of the present invention are Figure 1-2 As shown, it consists of a ground monitoring center and a wireless sensor network. It is characterized in that the ground monitoring center includes a monitoring center client 1, a monitoring center server 2, and an ordinary client 3. The monitoring center client 1 communicates with the monitoring center server 2 through a serial port. Connection, the monitoring center server 2 is connected with the common client 3 through the Internet; the wireless sensor network includes the sensor network node 6, the network cluster head 5, the wireless transceiver 4, and the sensor network node 6 communicates with the network cluster head 5 through the Zigbee protocol, The network cluster head 5 communicates with the wireless transceiver 4 through IEEE802.15.4, and the wireless transceiver 4 is connected with the monitoring center client 1 through a serial line and establishes communication;...
Embodiment 2
[0049] Embodiment 2: (method embodiment)
[0050] A working method of the above-mentioned gas monitoring system, such as image 3 As shown, the steps are as follows:
[0051] 1. Initialization;
[0052] 2. Connect to the remote server;
[0053] 3. Monitor wireless data in the air;
[0054] 4. Determine whether the data is received;
[0055] 5. Yes, connect to the remote server; otherwise, go to step 3;
[0056] 6. Determine whether the connection is successful;
[0057] 7. Submit data to the server;
[0058] 8. Check the data.
[0059] A method for communicating between sensor network nodes and network cluster heads using the above system, such as Figure 4 As shown, the steps are as follows:
[0060] initialization;
[0061] 1. Start;
[0062] 2. Whether the node is a network cluster head;
[0063] 3. If yes, go to the next step 2; otherwise, go to step 8;
[0064] 4. Wait for power saving to join;
[0065] 5. Create a TDMA time slot;
[0066] 6. Receive data; ...
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Abstract
The invention relates to a coal-mine gas monitoring system comprising a wireless sensor network, which belongs to coal-mine safety monitoring techniques. The system comprises a ground monitoring center and a wireless sensor network. The ground monitoring center comprises a monitoring centre client, a monitoring centre server and a common client; wherein the monitoring centre server is connected with both the monitoring centre client and the common client. The wireless sensor network comprises sensor network nodes, a network cluster head, and a wireless transceiver. The sensor network node comprises a processor module, a wireless communication module, a data acquisition module, an energy supply module, and an intelligent switch; wherein the wireless communication module, the data acquisition module and the intelligent switch are both connected with the processor module. The intelligent switch is connected in the circuit of the data acquisition module to control the power on/off thereof. The network cluster head receives the data sent from the sensor network nodes and communicates with the wireless transceiver. The system can real-time effective transmit data to monitor coal-mine gas, so as to reduce accidents and ensure coal-mine safety.
Description
(1) Technical field [0001] The invention relates to a wireless sensor network coal mine gas monitoring system based on ZigBee technology, which belongs to the technical field of coal mine safety monitoring. (2) Background technology [0002] The coal mining industry is also known as a high-risk industry. At present, gas explosions in coal mines are one of the important reasons for underground accidents in my country. The existing traditional gas detection technology has many limitations, such as the system cannot know the gas concentration at multiple locations in the well, the real-time performance is not high, and remote monitoring is not possible. In the traditional coal mine gas monitoring system, because the facilities and devices of the monitoring system are relatively fixed, the gas probe cannot be followed up with the progress of mining, so the monitoring system is often useless, and the underground network is difficult. Relevant personnel cannot carry out effective...
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