CN203801079U - Coalfield fire area monitoring wireless sensor gateway - Google Patents
Coalfield fire area monitoring wireless sensor gateway Download PDFInfo
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- CN203801079U CN203801079U CN201420070762.4U CN201420070762U CN203801079U CN 203801079 U CN203801079 U CN 203801079U CN 201420070762 U CN201420070762 U CN 201420070762U CN 203801079 U CN203801079 U CN 203801079U
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- control switch
- aggregation node
- gprs module
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- Y02B60/50—
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Abstract
The utility model discloses a coalfield fire area monitoring wireless sensor gateway comprising a convergence node, a GPRS module, a power supply module and a control switch. The power supply module is directly connected with the convergence node. The convergence node is connected with the GPRS module so that bidirectional transmission of data is realized. The input end of the control switch is connected with the power supply module, the output end is connected with the GPRS module, and the control end is connected with the convergence node. On-off control can be performed on power supply of the GPRS module by the convergence node via the control switch. A wireless microprocessor chip is adopted to act as a core by the convergence node which is integrated on a circuit board in cooperation with a peripheral circuit. The control switch is a digital switch and composed of a triode, an MOS-tube, a photoelectric coupler and a resistor. The coalfield fire area monitoring wireless sensor gateway can be applied to coalfield fire area low-frequency data acquisition wireless remote monitoring with a data acquisition function so that remote transmission can be performed, integral dormancy can be realized, energy consumption can be reduced, and a network energy bottleneck problem can be alleviated.
Description
Technical field
The utility model belongs to technical field of wireless, is specifically related to the design of wireless sensor gateway.
Background technology
In Coalfield Fire Extinguishing and flame range, administer, in management, need to have pair coal seam temperature in real time, on the spot, long-range, the long-term monitoring means directly measured, wireless sensor network technology provides for this reason may.Be deployed in on-the-spot network node and gather flame range temperature and be pooled to gateway, via GPRS module, pass through mobile network and Internet network is connected to far-end server.Wireless sensor network away from infrastructure is powered without continuation, and energy consumption problem is the emphasis of network design, and gateway is again the bottleneck of network energy consumption, need to develop the gateway of a low-power consumption.
The existing wireless sensor gateway that can carry out telecommunication generally by single-chip microcomputer or embedded board as main control chip, connect aggregation node and GPRS module or Ethernet card and form [1～4], collect the general node data of wireless senser and be transmitted to server, self does not possess data acquisition function, with without sleep mode work.During continuous firing, gateway energy consumption is more than 100mA, and during standby, power consumption has n * 10mA, adopts the high capacity cell of a 45Ah can maintain power supply about month.In the low-frequency degree information gathering of coalfield fire area monitoring, gateway overwhelming majority energy all consumes in standby.If allow gateway the dormancy of information gathering gap (singly do not refer to aggregation node, gateway remaining component is also wanted energy dormancy), can reduce energy consumption.The wireless sensor chip of recently producing [5～6] is integrated microprocessor, selecting this type of chip is that node that core forms can have concurrently and collects data and control function, can substitute the main control chip in gateway, reduces building block.Acp chip quiescent current is all in μ A level, and node energy consumption mainly concentrates on peripheral circuit; Self does not possess sleep mode GPRS module, needs additional control device.
Documents
[1] Wang Jinlin, Zhang Wenbo, Yang Xiaoyu, Shi Hui. embedded type wireless sensing device gateway .CN102932966A.
[2] Ding Chengjun, Li Honglei, Zhang Jianying. the design of wireless gas sensor network gateway and realization. Hebei University of Technology's journal, 41 (6), 2012.12.
[3] Ying Zhibiao, Xu Kangjin, Jiang Weiyang, Zhang Guoliang, week builds. wireless sensor gateway device .CN201323659Y
[4] Wang Yihuai, Wu Jin, Zhang Wenzhe, Fu Yuchen, Guo Yun. Wireless sensor gateway device .CN102387609A
[5]Jennic.JN-DS-JN5139-xxx-Myy1v6[DB/OL].http://www.jennic.com/support/datasheets/jn5139_module_datasheet,2010-1
[6]TICo.Ltd.2530Datasheet[DB/OL].http://www.ti.com.cn/product/cn/cc2530,2010-10
Utility model content
The purpose of this utility model is to provide a kind of coalfield flame range monitoring wireless sensor gateway that can whole dormancy, to realize collection, collection, forwarding and the remote transmission of the wireless data under low power mode of operation.
In order to solve above technical problem, the concrete technical scheme that the utility model adopts is as follows:
A kind of coalfield flame range monitoring wireless sensor gateway, comprise aggregation node (1), GPRS module (2), power module (3) and control switch (4), it is characterized in that: aggregation node (1) is connected with GPRS module (2), to carry out bidirectional data communication; Power module (3) is directly connected with aggregation node (1), by control switch (4), is connected with GPRS module (2), and control switch (4) is connected with aggregation node (1); It is core that aggregation node (1) be take wireless microprocessor chip (101), is equipped with peripheral circuit and is integrated on a circuit board; Gateway can whole dormancy.
Described control switch (4) is integrated in same circuit board with aggregation node (1); The input (401) of control switch (4) connects power module (3), and output (402) connects GPRS module (2), and control end (403) connects aggregation node (1); When aggregation node (1) dormancy, control switch (4) cuts out, and turn-offs GPRS module (2) power supply; When aggregation node (1) is revived, control switch (4) is opened, and gives GPRS module (2) power supply.
Described control switch (4) is digital switch, by peripheral circuit described in metal-oxide-semiconductor VT1, triode VT2, photoelectrical coupler OC and resistance R, comprise power circuit (102), external clock (103), crystal oscillating circuit (104), LED circuit (105), high temperature Acquisition Circuit (106), antenna-matching circuit (107), voltage measurement (108), MiniUSB mouth (109) and RS232 serial ports (110), be connected with wireless microprocessor chip (101) respectively.
The utlity model has beneficial effect.
(1) coalfield of the present invention flame range monitoring wireless sensor gateway is directly connected and forms with GPRS module by aggregation node, without separately adding control chip, has optimized building block; Can carry out data acquisition, collection, forwarding and remote-bidirectional transmission.Aggregation node is controlled GPRS modular power source switch, makes the gateway can whole dormancy, in low-frequency degree data acquisition application, reduces energy consumption.
(2) the present invention, by add high temperature acquisition module on aggregation node, makes its function that has the collection flame range coal seam high-temperature data of ordinary node concurrently, increases cyberspace monitored density.
(3) aggregation node that minimizes of the present invention comprises minimum peripheral circuit meeting under monitoring requirements, low in energy consumption.
Accompanying drawing explanation
Fig. 1 is wireless sensor gateway structural representation of the present invention;
Fig. 2 is aggregation node circuit theory diagrams of the present invention;
Fig. 3 is GPRS modular power source control switch circuit theory diagrams of the present invention.
In figure: 1, aggregation node 2, GPRS module 3, power module 4, control switch
101, wireless microprocessor chip 102, power circuit 103, external clock 104, crystal oscillating circuit 105, LED circuit 106, high temperature Acquisition Circuit 107, antenna-matching circuit 108, voltage measurement 109, MiniUSB mouth 110, RS232 serial ports
401, input 402, output 403, control end
Embodiment
For further explaining the purpose of this utility model, technical scheme and beneficial effect, the CC2530 of YiTI company chip is example as aggregation node core, the firm EP221P of the adding Wireless Data Transmission Terminal in Shanghai as GPRS module, from circuit theory three parts of structure, circuit theory and the control switch of wireless sensor gateway, is elaborated.
1. wireless sensor gateway described in the utility model is comprised of aggregation node 1, GPRS module 2, power module 3 and control switch 4, and structure as shown in Figure 1.
(1) aggregation node 1 is connected and is carried out two-way communication by serial ports with GPRS module 2, and power module 3 is directly connected with aggregation node 1, is connected by control switch 4 with GPRS module 2; Control switch 4 is connected with aggregation node 1.
(2) select the CC2530 of TI company chip as core, add peripheral circuit and form aggregation node 1.CC2530 chip is for 2.4GHz, and a SOC (system on a chip) of IEEE802.15.4, ZigBee and RF4CE application, combines RF transceiver, enhancement mode 8051CPU, In-System Programmable flash memory, 8-KBRAM and other function.
(3) GPRS module 2 is selected the firm EP221P of the adding Wireless Data Transmission Terminal in Shanghai, and plug and play realizes RS232 and GPRS network transparent translation, supports 900/1800GSM/GPRS system, and power supply is 5～12V direct current.
(4) power module 3 is selected 6V12Ah storage battery, gives GPRS module 2 and the unified power supply of aggregation node 1.
(5) gateway can whole dormancy.In the application of coalfield flame range high temp. monitoring, data acquisition interval can be several hours or several days, and in each cycle, the operating time only needs a few minutes, adopts remaining time sleep mode can save energy.During aggregation node 1 dormancy, to control switch 4 index signals, turn-off the power supply supply of GPRS module 2, make GPRS module 2 without power consumption; Aggregation node 1 opens the power supply of GPRS module 2 to after reviving control switch 4 index signals, and GPRS module 2 is worked on power.
2. as shown in Figure 2, the wireless microprocessor chip 101 of aggregation node 1 adopts CC2530 chip, and peripheral circuit is comprised of power circuit 102, external clock 103, crystal oscillating circuit 104, LED circuit 105, high temperature Acquisition Circuit 106, antenna-matching circuit 107, voltage measurement 108, MiniUSB mouth 109, RS232 serial ports 110.
(1) CC2530 chip has 40 pins, and 39 pins, 31 pins, 29 pins, 28 pins, 27 pins connect power supply VCC, 1～4 pin ground connection.6 pins, 9 pins, 12 pins, 13 pins, 15 pins are use not, and 40 pins are by 15pF capacity earth, and 30 pins are by 56K grounding through resistance.
(2), in power circuit 102, the 6V voltage that storage battery BAT provides, is connected into 1 pin of voltage stabilizing chip HT7330 through press-down type interrupteur SW 1, fuse F1, after conversion by the 2 pins output 3V burning voltage VCC of HT7330.
(3) external clock 103 adopts PCF8563 chip, is connected precision clock is provided with CC2530 chip.2 pins of the crystal oscillator Y5 that 1 pin of PCF8563 chip is connected with 2 pins and 4 pins; The load capacitance that is connected respectively a 15pF between 1 pin of crystal oscillator Y5 and 3 pins and ground; The large resistance of a 10M in parallel between 1 pin of crystal oscillator Y5 and 3 pins.8 pins of PCF8563 chip connect dual power supply, and 7 pins are unsettled, 4 pin ground connection.5 pins of PCF8563 chip and 6 pins are connected respectively 19 pins and 18 pins of CC2530 chip, form I
2c interface; I
2on two lines of C interface, connect respectively and draw resistance R 13 and pull-up resistor R14.CC2530 chip passes through I
2c interface is by time write clock chip, and timing produces interrupt signal to PCF8563 chip at 3 pins, sends into 37 pins of CC2530 chip, wakes node up.
(4) crystal oscillating circuit 104 comprises the crystal oscillator Y1 of 32MHz and the crystal oscillator Y2 of 32.768KHz.Between 22 pins of CC2530 chip, 23 pins, connect crystal oscillator Y1, two pins of crystal oscillator Y1 are respectively by a 27pF capacity earth; Between 32 pins of CC2530 chip, 33 pins, connect crystal oscillator Y2, two pins of crystal oscillator Y2 are respectively by a 15pF capacity earth.
(5) LED circuit 105 is used for showing node operating state.Three LED lamps are connected with the VCC of power circuit 102,7,8 two output pins of CC2530 chip respectively by jumper switch SW2.LED lamp D1 is power supply indicator, as long as VCC powers on and will light; LED lamp D2 and LED lamp D3 are status indicator lamps, according to user's request self-defining.
(6) high temperature Acquisition Circuit 106 is connected by MAX31855 temperature conditioning chip K type thermocouple with CC2530 chip.K type thermocouple positive and negative electrode is connected with 3,2 pins of MAX31855 chip respectively.4 pins of MAX31855 chip meet VCC, and 1 pin ground connection connects the electric capacity of a 0.1 μ F between 4 pins and 1 pin.8 pin of MAX31855 chip are unsettled, and 5 pins, 6 pins, 7 pins are connected to form SPI interface respectively at 5 pins, 11 pins, 38 pins of CC2530 chip.When the CS of MAX31855 chip pin level is from high to low during saltus step, under the effect of clock SCK, by SO pin, to CC2530 chip, export switched binary data.
(7) 26 pins of one of antenna-matching circuit 107 route CC2530 chip connect the electric capacity of a 18pF and a 1pF, draw 2nH inductance ground connection between two electric capacity; 25 pins of second route CC2530 chip connect the inductance of a 18pF electric capacity and a 2nH, draw 1pF capacity earth between electric capacity and inductance; Two branch roads connect 50 ohm antennas by 2.2pF electric capacity simultaneously.
(8) voltage measurement 108 circuit, by sending into 14 pins of CC2530 chip after VIN dividing potential drop, are used for monitoring battery tension.
(9) MiniUSB mouth 109JP1 has 5 pins, and 1 pin, 2 pins, 3 pins connect respectively 20 pins, 35 pins, 34 pins of CC2530 chip, and 4 pins are unsettled, 5 pin ground connection.
(10) RS232 serial ports 110.It is the Transistor-Transistor Logic level pattern that logical one, low level are logical zero that CC2530 chip adopts high level, and serial ports to adopt positive high level be 232 level modes that logical zero, negative high level are logical one, Transistor-Transistor Logic level need could be communicated by letter by level conversion with 232 level.This example adopts SP3232 chip to convert Transistor-Transistor Logic level to 232 level, and serial interface is DB9 type.16 pins of CC2530 chip, 17 pins are connected with 12 pins, 10 pins of SP232 chip respectively, as input and output; 7 pins of SP232,13 pins are connected with 2 pins, 3 pins of DB9 socket respectively as input and output.
3. control switch 4 circuit diagrams of the utility model GPRS module 2 power ends as shown in Figure 3.
The effect of control switch 4 is when aggregation node 1 dormancy, to turn-off the power supply of GPRS module 2, opens the power supply of GPRS module 2 when aggregation node 1 is revived.The power module 3 of input 401 connection layouts 1 of control switch 4, the power supply input of the GPRS module 2 of output 402 connection layouts 1, the P2_0 pin of CC2530 chip shown in control end 403 connection layouts 2.
After resistance R 22 and resistance R 21 series connection, the collector electrode of one end access triode VT2, the S utmost point of other end access metal-oxide-semiconductor VT1, middle lead-out wire connects the G utmost point of metal-oxide-semiconductor VT1; The D utmost point lead-out wire of metal-oxide-semiconductor VT1 is as the input 401 of control switch 4, and S utmost point lead-out wire is as the input 402 of control switch 4.The base stage of triode VT2 connects 5 pins of photoelectrical coupler OC, connects simultaneously and draws resistance R 23; The grounded emitter of triode VT2.2, the 4 pin ground connection of photoelectrical coupler OC, 1 pin is drawn the control end 403 as control switch 4 through current-limiting resistance R20.
During aggregation node 1 dormancy, from the P2_0 pin output high level of CC2530 chip, light 1 pin of photoelectrical coupler OC, the light-emitting diode between 2 pins, make to be low resistance state between 4 pins, 5 pins of photoelectrical coupler OC; Triode VT2 base stage is equivalent to ground connection, and collector potential drags down; The G electrode drop of metal-oxide-semiconductor VT1 is low to moderate below threshold value, is equivalent to disconnect between D, the S utmost point; Output 402 voltages of control switch 4 are close to 0, and control switch 4 is equivalent to cut out.
When aggregation node 1 is revived, from the P2_0 pin output low level of CC2530 chip, the light-emitting diode of photoelectrical coupler OC does not work, and between 4 pins, 5 pins, is high-impedance state; The base stage high level of triode VT2, collector potential is drawn high; The high level of G of metal-oxide-semiconductor VT1, conducting between D, the S utmost point, the output 402 of control switch 4 has nearly 6V voltage, and control switch 4 is equivalent to open.
Above embodiment shows concrete methods of realizing of the present utility model, according to embodiment explanation can produce for coalfield flame range with high temp. monitoring and remote transmission function, can whole dormancy gateway.
Claims (4)
1. a coalfield flame range monitoring wireless sensor gateway, comprise aggregation node (1), GPRS module (2), power module (3) and control switch (4), it is characterized in that: aggregation node (1) is connected with GPRS module (2), to carry out bidirectional data communication; Power module (3) is directly connected with aggregation node (1), by control switch (4), is connected with GPRS module (2), and control switch (4) is connected with aggregation node (1); It is core that aggregation node (1) be take wireless microprocessor chip (101), is equipped with peripheral circuit and is integrated on a circuit board; Gateway can whole dormancy.
2. a kind of coalfield according to claim 1 flame range monitoring wireless sensor gateway, is characterized in that: described control switch (4) is integrated in same circuit board with aggregation node (1); The input (401) of control switch (4) connects power module (3), and output (402) connects GPRS module (2), and control end (403) connects aggregation node (1); When aggregation node (1) dormancy, control switch (4) cuts out, and turn-offs GPRS module (2) power supply; When aggregation node (1) is revived, control switch (4) is opened, and gives GPRS module (2) power supply.
3. a kind of coalfield according to claim 1 flame range monitoring wireless sensor gateway, is characterized in that: described control switch (4) is digital switch, metal-oxide-semiconductor VT1, triode VT2, photoelectrical coupler OC and resistance R 20 ~ R23, consists of.
4. a kind of coalfield according to claim 1 flame range monitoring wireless sensor gateway, it is characterized in that: described peripheral circuit comprises power circuit (102), external clock (103), crystal oscillating circuit (104), LED circuit (105), high temperature Acquisition Circuit (106), antenna-matching circuit (107), voltage measurement (108), MiniUSB mouth (109) and RS232 serial ports (110), be connected with wireless microprocessor chip (101) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420070762.4U CN203801079U (en) | 2014-02-18 | 2014-02-18 | Coalfield fire area monitoring wireless sensor gateway |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420070762.4U CN203801079U (en) | 2014-02-18 | 2014-02-18 | Coalfield fire area monitoring wireless sensor gateway |
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| CN203801079U true CN203801079U (en) | 2014-08-27 |
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| CN201420070762.4U Expired - Fee Related CN203801079U (en) | 2014-02-18 | 2014-02-18 | Coalfield fire area monitoring wireless sensor gateway |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103796344A (en) * | 2014-02-18 | 2014-05-14 | 江苏大学 | Coal field burning area monitoring wireless sensor gateway |
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2014
- 2014-02-18 CN CN201420070762.4U patent/CN203801079U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103796344A (en) * | 2014-02-18 | 2014-05-14 | 江苏大学 | Coal field burning area monitoring wireless sensor gateway |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20220218 |