CN102215602A - Wireless sensor network monitoring node in high-temperature coalfield fire area at 130-1000 DEG C and monitoring method thereof - Google Patents
Wireless sensor network monitoring node in high-temperature coalfield fire area at 130-1000 DEG C and monitoring method thereof Download PDFInfo
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- CN102215602A CN102215602A CN2011101199926A CN201110119992A CN102215602A CN 102215602 A CN102215602 A CN 102215602A CN 2011101199926 A CN2011101199926 A CN 2011101199926A CN 201110119992 A CN201110119992 A CN 201110119992A CN 102215602 A CN102215602 A CN 102215602A
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Abstract
The invention discloses a wireless sensor network monitoring node in a high-temperature coalfield fire area at 130-1000 DEG C and a monitoring method thereof. A signal acquisition board is integrated with a temperature signal conditioning circuit and a power switching circuit and is fixedly connected with an SPI (Serial Peripheral Interface) wiring terminal and a high temperature sensor socket; the power switching circuit is electrically connected with a battery and a node respectively, a high temperature sensor probe is connected with the temperature signal conditioning circuit through the high temperature sensor socket, a signal wire is connected between the temperature signal conditioning circuit and the high temperature sensor probe, a hollow steel wire is loosely sleeved on the external face of the signal wire, the temperature signal conditioning circuit is connected with the SPI wiring terminal through a signal wire, the SPI wiring terminal is connected with the node through a signal wire; a simulation signal measured by the high temperature sensor probe is firstly transmitted to the temperature signal conditioning circuit and then transmitted to the node through the SPI wiring terminal; and finally, data is transmitted to a sink node through a wireless communication module in a wireless mode, therefore, the measurement operations which can not be finished by virtue of manual work, wire transmission and a room temperature sensor can be realized.
Description
Technical field
The present invention relates to the radio sensor network monitoring technology, relate in particular to the monitoring node and the monitoring method that are used under 130 ~ 1000 ℃ of high-temperature conditions in fire district, coalfield.
Background technology
Wireless sensor network is a multihop self-organizing network, forms, communicates by wireless mode by being deployed in microsensor nodes a large amount of in the monitored area.Sensor node has monitoring, calculating and communication capacity, can transmit information mutually by wireless communication module, the collaborative monitoring task of finishing.Wireless sensor network has wide application prospect in fields such as environmental monitoring, military surveillance, agricultural production and medical treatment ﹠ health monitoring, particularly in environmental monitoring is used, traditional manual measurement method is subjected to condition restriction can't realize the real-time and effective data acquisition, method of measurement by wire transmission is also because of being difficult to realize away from infrastructure and difficult wiring, as the temperature monitoring in coalfield fire district etc.
Existing wireless sensor network node generally has been equipped with-40 ~ 120 ℃ temperature sensor, does not have high-temperature probe, is not suitable for the application of fire district, coalfield high temperature monitoring, and its defective is:
1, on this basis the wireless sensor network of Application and Development only for observation to normal temperature, normality data, not energy measurement coalfield of burning and temperature up to 130 ~ 1000 ℃ etc. abnormal data.
2, the transducer of this type of normal temperature monitoring node is integrated on node chip, and node can't separate with sensor chip, can not protect the physical security of node under adverse circumstances such as high temperature.
3, only limit to the measurement of single-point or wired scope, can not carry out large-area wireless monitor.
Summary of the invention
The objective of the invention is for overcoming above-mentioned prior art deficiency,, provide a kind of and can distinguish the radio sensor network monitoring node by 130 ~ 1000 ℃ of high temperature coalfield fire of real time dynamic measurement at the needs of 130 ~ 1000 ℃ of high temperature monitorings in coalfield fire district.The present invention also provides the monitoring method of this radio sensor network monitoring node simultaneously, the analog voltage signal that the high temp sensitive probe can be collected converts digital signal to through modulate circuit, and send to aggregation node by wireless mode, realize wireless high temperature monitoring.
For achieving the above object, radio sensor network monitoring node of the present invention adopts technical scheme to be: comprise node and signal acquiring board, wireless communication module is set on the node, is integrated with temperature signal regulation circuit and power-switching circuit and affixed SPI mouth binding post and pyrostat socket on the signal acquiring board; Power-switching circuit is electrically connected battery and node respectively, the high temp sensitive probe joins by pyrostat socket and temperature signal regulation circuit, connect holding wire between temperature signal regulation circuit and the high temp sensitive probe, hollow steel wire of holding wire outer space cover, the temperature signal regulation circuit connects SPI mouth binding post through holding wire, and SPI mouth binding post is through the holding wire connected node.
Radio sensor network monitoring method of the present invention comprises the steps: 1) analog signal of high temp sensitive probe measurement is passed to the temperature signal regulation circuit by holding wire with the form of voltage, become digital signal through amplification, shaping and analog-to-digital conversion, be transferred to node by SPI mouth binding post; 2) node digital signal is shifted and the conversion of system after form actual readable data; 3) by wireless communication module data are passed to aggregation node with wireless mode, the GPRS that the aggregation node utilization is attached thereto sends the data to far-end server.
The present invention adopts the beneficial effect after the technique scheme to be:
1, by being arranged in the pyrostat measurement data in fire district, converge wirelessly after the long-range monitoring center that sends to of GPRS, realize artificial, wire transmission, normal temperature temperature sensor the surveying work that can not finish.
2, the high temperature monitoring node can be used in the temperature monitoring in coalfield fire district, and the observed temperature scope can realize real-time data acquisition at 0 ~ 1023.75 ℃.
3, the high temp sensitive probe places observation station place, node and temperature acquisition modulate circuit to be placed on comparatively safe place and is protected, and node can be applied in the monitoring of various hot environments flexibly and easily.
4, adopt SPI interface data communication means and data read mode, be not limited to the collection of high temperature data, can be applicable in other collecting sensor signals.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail:
Fig. 1 is the hardware configuration connection diagram of radio sensor network monitoring node of the present invention;
Fig. 2 is the circuit structure diagram of signal acquiring board 6 among Fig. 1;
Fig. 3 is the connection layout of JN5139 chip and MAX6675 chip;
Fig. 4 is the packaging effect figure of monitoring node;
Among the figure: 1. node; 2. wireless communication module; 3.SPI mouthful binding post; 4. high temp sensitive is popped one's head in; 5. battery; 6. signal acquiring board; 7. holding wire; 8. hollow steel wire; 9. temperature signal regulation circuit; 10. power-switching circuit; 11. solar panel; 12. seal box; 13. steel column; 14. pyrostat socket.
Embodiment
Referring to Fig. 1, the hardware configuration of radio sensor network monitoring node of the present invention comprises node 1, high temp sensitive probe 4, signal acquiring board 6 and battery 5.Node 1 can adopt the JN5139 series node of Beijing rich news Science and Technology Ltd., and the chip of node 1 is JN5139, and operating frequency is 2.45GHz, and operating voltage is 3V.Wireless communication module 2 is set on node 1.For supporting the long field work time, power supply adopts the 6V12Ah storage battery power supply.The high temp sensitive 4 buried subsurface investigation high temperature of popping one's head in, adopt K type thermocouple high temp sensitive probe, measuring range is-40 ~ 1300 ℃, and the scope of working long hours is 0 ~ 1000 ℃, measure error is ± 2.5 ℃ less than 300 ℃ the time, is measured value * ± 0.75% when being higher than 300 ℃.
On signal acquiring board 6, be integrated with temperature signal regulation circuit 9 and power-switching circuit 10, fixed installation SPI mouth binding post 3 and pyrostat socket 14 on the signal acquiring board 6.Temperature signal regulation circuit 9 adopts the MAX6675 chip, can carry out signal and amplify and the digital translation processing.Power-switching circuit 10 adopts the HT7330 chip.Power-switching circuit 10 is electrically connected battery 5 and node 1 respectively, and power-switching circuit 10 is that the burning voltage of 3V gives node 1 power supply with the 6V voltage transitions of battery 5.Connect holding wire 7 between temperature signal regulation circuit 9 and the high temp sensitive probe 4; high temp sensitive can be popped one's head in and 4 be connected with temperature signal regulation circuit 9 by the pyrostat socket 14 on the signal acquiring board 6; hollow steel wire 8 of holding wire 7 outer spaces cover between temperature signal regulation circuit 9 and high temp sensitive probe 4 works to protect holding wire 7 therebetween.Temperature signal regulation circuit 9 connects SPI mouth binding post 3 through holding wire 7, and SPI mouth binding post 3 is through holding wire 7 connected nodes 1.Like this, the analog signal that high temp sensitive probe 4 is measured passes to temperature signal regulation circuit 9 with the form of voltage, amplify through temperature signal regulation circuit 9, form digital signal after shaping and the analog-to-digital conversion, digital signal is transferred to node 1 by the holding wire 7 that SPI mouth binding post 3 is connected, 1 pair of digital signal of node be shifted and the conversion of system after form actual readable data, pass to aggregation node by wireless communication module 2 with wireless mode, the GPRS that the aggregation node utilization is attached thereto sends the data to far-end server, realizes the high temperature long-distance wireless monitoring to fire district burning coal layer.
Referring to Fig. 2, the Vin end of the HT7330 chip that power-switching circuit 10 adopts connects battery 5, the Vout end can be exported stable 3.1V voltage, Vin and Vout port and all insert 0.1uf and 200uf electric capacity, is used for carrying out high and low frequency filtering.This circuit conversion efficient height, the consumable electric current is little, has only 0.9mA.The VCC pin of battery 5 MAX6675 chip of cut-in temperature signal conditioning circuit 9 after two diode step-downs; Two ports of the T+ of MAX6675 chip and T-are connected the both positive and negative polarity of pyrostat socket 14; T-holds the direct ground connection that links to each other with GND; Connect electric capacity between VCC end and the ground; The SCK pin is the clock input, and CS is the control pin, and SO is a signal output part.
Referring to Fig. 3, the JN5139 chip of node 1 is a main control unit, and the MAX6675 chip of temperature signal regulation circuit 9 is the subordinate chip; The SCLK pin of JN5139 links to each other with the SCK pin of MAX6675, in order to clock signal to be provided; The DIO0 pin of JN5139 and MAX6675's
Pin links to each other, as the sheet choosing; The MISO(master of JN5139 goes into from going out) pin links to each other with the SO pin of MAX6675, in order to receiving digital signals.
When practical application, need the node among Fig. 11, signal acquiring board 6 and battery 5 are encapsulated, as shown in Figure 4.Be the fragile relatively node 1 of protection, node 1 and signal acquiring board 6 need be separated with high temp sensitive probe 4.Node 1, battery 5, signals collecting circuit board 6 are placed in the seal box 12, place safety place, high with steel column 13 12 of seal boxes; Wireless communication module 2 places steel column 13 tops outside the seal box 12 with antenna, also can be encapsulated in the seal box 12 as required; High temp sensitive probe 4 places point for measuring temperature (point for measuring temperature places the underground combustion coal seam), is linked to each other with node 1 by holding wire 7; Holding wire 7 can be selected appropriate length as required, is positioned in the hollow steel wire 8 to be protected.Longer time field work can add that solar panels 11 carry out the continuation power supply if desired, and the overall package effect as shown in Figure 4.
Monitoring node shown in Figure 1 is when monitoring: high temp sensitive probe 4 is added on the wireless sensor network node 1, the original vol that temperature signal regulation circuit 9 is measured high temp sensitive probe 4 is handled, by 3 butt joints of SPI mouth binding post, realize the collection and the forwarding of data, form the high temperature monitoring node.Concrete steps are as follows:
1, hardware circuit correctly connects, and powers on.
2, the JN5139 chip of node 1 carries out initialization to the SPI interface of SPI mouth binding post 3, the first place that the quantity of the SPI equipment that select to use is 1, data send be high-order, the rising edge that all uses the SLK clock of transmitting and receive data, clock rate as 0.25MHz, do not use SPI to interrupt and select function from moving plate.
3, the JN5139 chip of node 1 produces a high level to low level saltus step at the DIO0 pin, carries out data passes from the moving plate choosing, and opens.
4, the JN5139 chip of node 1 is provided with the transmission data, and the SPI mouth by SPI mouth binding post 3 sends to the MAX6675 chip, activates the SPI clock.Send the state that data comprise node 1, size is a write cycle time 16bit of MAX6675 chip.
5, because the SPI interface adopts the principle of circulating register, need to wait for a period of time after node 1 sends data, read in the data of MAX6675 chip from the MISO pin, a read cycle receives 16bit.
6, node 1 processor chips to the data that receive analyze, the conversion of displacement, system, form readable data.The MAX6675 chip data that receives is 16 (as shown in table 1), and the corresponding relation of temperature value and digital quantity is: the digital quantity after temperature value=0.25 * conversion.
The SO end output temperature data format of the MAX6675 chip of table 1 temperature signal regulation circuit 9
The read states sign is changed to 1 expression data read and finishes, and closes the SPI interface.Need open the SPI interface once more during Data transmission once more, in case the dislocation of SPI clock.
7, the JN5139 chip utilizes wireless radio frequency modules 2 that data are sent to aggregation node or other routing nodes.
Program compilation and download: by the Clodblocks development environment class C programmer compiling that writes is generated bin file, by Flashprogram program burn writing instrument bin file is downloaded in the JN5139 chip of sensor node 1 again.
According to above-mentioned steps, high temperature monitoring node 1 just can and send to aggregation node with the observation data collection.Utilize the pyrostat image data, give node 1 by the SPI oral instructions, node 1 data be shifted, system conversion sends out by wireless mode after forming readable data, finally arrives far-end server.The user is other special Monitoring Data if desired, also can utilize the present invention, only need high temp sensitive probe 4 is replaced with needed transducer, and the data that receive are changed accordingly.
Claims (4)
1. 130 ~ 1000 ℃ of high temperature coalfields fire is distinguished the radio sensor network monitoring node, comprise node (1) and signal acquiring board (6), wireless communication module (2) is set on the node (1), it is characterized in that: be integrated with temperature signal regulation circuit (9) and power-switching circuit (10) and affixed SPI mouth binding post (3) and pyrostat socket (14) on the signal acquiring board (6); Power-switching circuit (10) is electrically connected battery (5) and node (1) respectively, high temp sensitive probe (4) joins by pyrostat socket (14) and temperature signal regulation circuit (9), connect holding wire (7) between temperature signal regulation circuit (9) and the high temp sensitive probe (4), holding wire (a 7) outer space cover hollow steel wire (8), temperature signal regulation circuit (9) connects SPI mouth binding post (3) through holding wire (7), and SPI mouth binding post (3) is through holding wire connected node (1).
2. fire district, 130 ~ 1000 ℃ of high temperature coalfields according to claim 1 radio sensor network monitoring node, it is characterized in that: node (1) has the JN5139 chip, temperature signal regulation circuit (9) has the MAX6675 chip, and power-switching circuit (10) has the HT7330 chip.
3. the monitoring method of fire district, 130 ~ 1000 ℃ of high temperature coalfields radio sensor network monitoring node is characterized in that comprising the steps:
1) analog signal that high temp sensitive probe (4) is measured passes to temperature signal regulation circuit (9) by holding wire (7) with the form of voltage, become digital signal through amplification, shaping and analog-to-digital conversion, be transferred to node (1) by SPI mouth binding post (3);
2) node (1) digital signal is shifted and the conversion of system after form actual readable data;
3) by wireless communication module (2) data are passed to aggregation node with wireless mode, the GPRS that the aggregation node utilization is attached thereto sends the data to far-end server.
4. monitoring method according to claim 3 is characterized in that: in the step 1), the first place that the JN5139 chip data of node (1) sends is high-order, transmits and receive data and all uses the rising edge of clock; Produce a high level then to low level saltus step, send to the MAX6675 chip of temperature signal regulation circuit (9) by the SPI mouth of SPI mouth binding post (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101199926A CN102215602A (en) | 2011-05-11 | 2011-05-11 | Wireless sensor network monitoring node in high-temperature coalfield fire area at 130-1000 DEG C and monitoring method thereof |
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| CN2011101199926A CN102215602A (en) | 2011-05-11 | 2011-05-11 | Wireless sensor network monitoring node in high-temperature coalfield fire area at 130-1000 DEG C and monitoring method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103310619A (en) * | 2013-07-08 | 2013-09-18 | 江苏大学 | Wireless sensor network node used for temperature monitoring and temperature monitoring method |
| CN103808365A (en) * | 2014-02-18 | 2014-05-21 | 江苏大学 | Coal field fire area wireless sensor monitoring node |
| CN104598874A (en) * | 2014-12-24 | 2015-05-06 | 周小虎 | Remote sensing monitoring method for coal field self-combustion |
| CN105488984A (en) * | 2015-12-22 | 2016-04-13 | 哈尔滨工程大学 | System for wireless testing of wind speed and wind pressure of large drying column |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201117071Y (en) * | 2007-11-27 | 2008-09-17 | 大连海事大学 | Low power consumption wireless sensor node for measuring temperature |
| CN101430229A (en) * | 2008-12-12 | 2009-05-13 | 深圳市英唐智能控制股份有限公司 | Method for signal collection |
| CN201497590U (en) * | 2009-07-02 | 2010-06-02 | 西安森兰科贸有限责任公司 | Wireless self network grouping drill hole temperature measurement device for fire of coalfield |
| CN201509319U (en) * | 2009-09-15 | 2010-06-16 | 江苏大学 | Wireless sensor network system based on hidden seal nodes |
-
2011
- 2011-05-11 CN CN2011101199926A patent/CN102215602A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201117071Y (en) * | 2007-11-27 | 2008-09-17 | 大连海事大学 | Low power consumption wireless sensor node for measuring temperature |
| CN101430229A (en) * | 2008-12-12 | 2009-05-13 | 深圳市英唐智能控制股份有限公司 | Method for signal collection |
| CN201497590U (en) * | 2009-07-02 | 2010-06-02 | 西安森兰科贸有限责任公司 | Wireless self network grouping drill hole temperature measurement device for fire of coalfield |
| CN201509319U (en) * | 2009-09-15 | 2010-06-16 | 江苏大学 | Wireless sensor network system based on hidden seal nodes |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103310619A (en) * | 2013-07-08 | 2013-09-18 | 江苏大学 | Wireless sensor network node used for temperature monitoring and temperature monitoring method |
| CN103808365A (en) * | 2014-02-18 | 2014-05-21 | 江苏大学 | Coal field fire area wireless sensor monitoring node |
| CN104598874A (en) * | 2014-12-24 | 2015-05-06 | 周小虎 | Remote sensing monitoring method for coal field self-combustion |
| CN105488984A (en) * | 2015-12-22 | 2016-04-13 | 哈尔滨工程大学 | System for wireless testing of wind speed and wind pressure of large drying column |
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