CN103760863A

CN103760863A - Stinky gas and VOCs monitoring system based on sensor network

Info

Publication number: CN103760863A
Application number: CN201410026933.8A
Authority: CN
Inventors: 蒋鹏; 王英帅; 王坤; 王兴民
Original assignee: Hangzhou Dianzi University
Current assignee: Hangzhou Dianzi University
Priority date: 2014-01-21
Filing date: 2014-01-21
Publication date: 2014-04-30
Anticipated expiration: 2034-01-21
Also published as: CN103760863B

Abstract

The invention discloses a stinky gas and VOCs monitoring system based on a sensor network. The stinky gas and VOCs monitoring system comprises a monitoring node, a gateway and a monitoring center. The monitoring node comprises a power management module, a wireless communication module, an external storage module, a clock module, a sensor information collecting module, a GPS module, and a controller module. The gateway comprises a power management module, a wireless communication module, an external storage module, a clock module, a TD-LTE module, a controller module and an external lithium battery solar battery part. The monitoring center is established on a dedicated PC. The stinky gas and VOCs monitoring system is small in size, low in consumption and high in precision, has the functions such as collection, processing and storage, and is capable of detecting the concentration of various VOCs in gas environments quickly.

Description

Stench class gas based on sensor network and VOCs monitoring system

Technical field

The invention belongs to industrial control technology field, be specifically related to a kind of stench class gas and VOCs monitoring device based on sensor network.

Background technology

Along with expanding economy and social progress, many industrial sectors have produced a large amount of stench class gas and VOCs(volatile organic matter in process of production), this material can cause huge harm to health and environment.Hang up one's hat in the environment polluting in volatile organic compounds, can cause slow poisoning, damage liver and nervous system, cause the symptoms such as general weakness, pruitus.What have also may cause endocrinopathy, affects sexual function; Benzene and dimethylbenzene can also damage system, so that cause leukaemia.In recent years, along with the develop rapidly of the subjects such as wireless technology, communication network, wireless sensor network becomes the focus of gaseous environment monitoring area research.Stench class gas based on sensor network and VOCs monitoring system; there is monitoring range large; flexible configuration; low in energy consumption; to physical environment, destroy little; feature with low cost, can realize the multi-point remote multiparameter real time on-line monitoring to gaseous environment, and monitoring and environmental protection that gaseous environment is changed have great development prospect and realistic meaning.

Summary of the invention

The present invention is directed to the deficiency of existing gaseous environment Monitoring Status, proposed a kind of stench class gas and VOCs monitoring device based on sensor network.The technical scheme that technical solution problem of the present invention adopts is:

The present invention includes monitoring node, gateway and monitoring center.

Monitoring node comprises power management module, wireless communication module, outer memory module, clock module, sensor information acquisition module, GPS module and controller module.

Gateway comprises power management module, wireless communication module, outer memory module, clock module, TD-LTE module, controller module and outside lithium battery solar battery part.

Monitoring center builds on special-purpose PC.

Beneficial effect of the present invention: this device volume is little, low in energy consumption, and precision is high; Possess the functions such as data sampling and processing and storage, can detect fast the concentration of multiple VOCs in gaseous environment, utilize CC1101 wireless communication module and TD-LTE module that the latitude and longitude information at stench class gas and VOCs concentration information, node device place and temporal information etc. are sent to server, the information that recording geometry monitors from server, embodying artificial intelligence is the contribution that industrial development brings.

Accompanying drawing explanation

Fig. 1 is whole hardware configuration schematic diagram of the present invention;

Fig. 2 is monitoring node hardware configuration schematic diagram of the present invention;

Fig. 3 is monitoring node power management module circuit theory diagrams of the present invention;

Fig. 4 is monitoring node clock module circuit theory diagrams of the present invention;

Fig. 5 is monitoring node outer memory module circuit theory diagrams of the present invention;

Fig. 6 is monitoring node AD sampling section circuit theory diagrams of the present invention;

Fig. 7 is monitoring node key part circuit theory diagrams of the present invention;

Fig. 8 is monitoring node LED lamp partial circuit schematic diagram of the present invention;

Fig. 9 is monitoring node JTAG burning program partial circuit schematic diagram of the present invention;

Figure 10 is monitoring node controller circuitry schematic diagram of the present invention;

Figure 11 is gateway hardware structure diagram of the present invention;

Figure 12 is gateway power management module circuit theory diagrams of the present invention;

Figure 13 is gateway clock module circuit theory diagrams of the present invention;

Figure 14 is gateway outer memory module circuit theory diagrams of the present invention;

Figure 15 is gateway A D sampling section circuit theory diagrams of the present invention;

Figure 16 is gateway key part circuit theory diagrams of the present invention;

Figure 17 is gateway LED lamp partial circuit schematic diagram of the present invention;

Figure 18 is gateway JTAG burning program partial circuit schematic diagram of the present invention;

Figure 19 is gateway controller circuit theory diagrams of the present invention.

Embodiment

Below in conjunction with accompanying drawing, modules of the present invention is done to specific description.

As shown in Figure 1, monitoring joint comprises power management module, wireless communication module, outer memory module, clock module, sensor information acquisition module, GPS module, controller module and outside lithium battery solar battery part.The LED lamp being connected with controller is partly for hardware debug.

As shown in Figure 2, power management module forms by take 3.3V voltage conversion circuit and the external 12V lithium battery that LTC1474-3.3 is core.1 pin of power interface J14 is connected with the 12V interface of lithium battery is anodal, 2 pins of power interface J14 and 3 pin ground connection, 1 pin of power interface J6 is connected with the anode interface of solar cell, 2 pins of power interface J6 and 3 pin ground connection, the 1 pin right-hand member of power interface J14 is connected with the positive pole of diode D9, the negative pole of diode D9 is connected with one end of the 147 resistance, the other end of the 147 resistance is connected with the negative pole of diode D102, the plus earth of diode D102, the negative pole of diode D102 is connected with one end of jumper cap P1, the other end of jumper cap P1 is connected with the positive pole of the first electrochemical capacitor C1, the minus earth of the first electrochemical capacitor C1.The 48 resistance one end is connected with the positive pole of the first electrochemical capacitor C1, the other end of the 48 resistance is connected with 3 pins of the 6th power supply chip U6 LTC1474-3.3,3 pins of the 6th power supply chip U6 LTC1474-3.3 are connected with one end of the 49 resistance R 49, the other end ground connection of the 49 resistance R 49.The first resistance R 1, the second resistance R 2, one end of the 8th capacitor C 8, one end of the 9th capacitor C 9, one end of 7 pins of the 6th power supply chip U6 LTC1474-3.3 and the 83rd capacitor C 83 connects, the first resistance R 1, the other end of the second resistance R 2 and the 8th capacitor C 8 is connected with 6 pins of the 6th power supply chip U6 LTC1474-3.3, the other end ground connection of the 9th capacitor C 9 and the 83rd electric capacity, one end of the 37 resistance R 37 is unsettled, the other end is connected with 8 pins of the 6th power supply chip U6 LTC1474-3.3, 8 pins of the 6th power supply chip U6 LTC1474-3.3 are connected with 2 pins of the 6th power supply chip U6 LTC1474-3.3, one end of the first inductance L 1, the positive pole of the 29 electrochemical capacitor C29, the 38 one end of capacitor C 38 and one end of the 137 resistance are connected with 1 pin of the 6th power supply chip U6 LTC1474-3.3, the other end of the first inductance L 1 is connected with 5 pins of the 6th power supply chip U6 LTC1474-3.3, 5 pins of the 6th power supply chip U6 LTC1474-3.3 are connected with the negative pole of the first diode D1, the plus earth of the first diode D1, other one end ground connection of the negative pole of the 29 electrochemical capacitor C29 and the 38 capacitor C 38, other one end of the 137 resistance R 137, one end of the 42 resistance R 42 connects and one end of the 5th resistance R 5 connects, and the other end of the 42 resistance R 42 is connected with the positive pole of the tenth diode D10, the minus earth of the tenth diode D10, the other end of the 5th resistance R 5, one end of the 13 capacitor C 13, the positive pole of the 4th electrochemical capacitor C4, one end of the 15 capacitor C 15, one end of the 11

resistance R

11, 8 pins of the 9th exterior storage chip U9 FM25VN02, one end of the 50 resistance R 50, one end of the second pull-up resistor U2, one end of the 27 resistance R 27, one end of the 28 resistance R 28, one end of the 29 resistance R 29, one end of the 30 resistance R 30, one end of the 31 resistance R 31, one end of the 84 capacitor C 84, 64 pins of the 4th controller chip U4 MSP430F167, 1 pin of the 4th controller chip U4 MSP430F167, 1 pin of the 7th clock chip U7 DS1302, 1 pin of one end of the 39

capacitor C

39 and 1*5 row pin J11 connects.The 3.3V voltage conversion circuit that the LTC1474-3.3 of take is core provides 3.3V voltage as wireless communication module, outer memory module, clock module, sensor information acquisition module, GPS module, controller module.

As shown in Figure 3, clock module comprises clock chip U7 DS1302, the 39 capacitor C 39, the 40 capacitor C 40, the 41 capacitor C 41, the 3rd crystal oscillator Y3 and the first dry cell BT1, 1 pin of clock chip U7 DS1302 is connected with one end of the 39 capacitor C 39, the other end of the 39 capacitor C 39 is connected with one end of the 40 capacitor C 40, the other end of the 40 capacitor C 40 is connected with 2 pins of clock chip U7 DS1302 and one end of the 3rd crystal oscillator Y3, 3 pins of the 3rd other end of crystal oscillator Y3 and one end of the 41 capacitor C 41 and clock chip U7 DS1302 are connected, the 4 pin ground connection of the other end of the 41 capacitor C 41 and clock chip U7 DS1302, 5 pins of clock chip U7 DS1302 are connected with 14 pins of controller chip U4, 6 pins of clock chip U7 DS1302 are connected with 13 pins of controller chip U4, 7 pins of clock chip U7 DS1302 are connected with 12 pins of controller chip U4, 8 pins of clock chip U7 DS1302 are connected with the positive pole of the first dry cell BT1, the minus earth of the first dry cell BT1.

As shown in Figure 4, outer memory module comprises storage chip U9 FM25VN02, the 47 resistance R 47, the 50 resistance R 50 and the 45

capacitor C

45, 1 pin of storage chip U9 FM25VN02 is connected with 48 pins of controller chip U4 MSP430F167, 2 pins of storage chip U9 FM25VN02 are connected with 46 pins of controller chip U4 MSP430F167, 3 pins of storage chip U9 FM25VN02 are connected with other one end of the 47 resistance, the 4 pin ground connection of storage chip U9 FM25VN02, 5 pins of storage chip U9 FM25VN02 are connected with 45 pins of controller chip U4 MSP430F167, 6 pins of storage chip U9 FM25VN02 are connected with 47 pins of controller chip U4 MSP430F167, 7 pins of storage chip U9 FM25VN02 are connected with the other end of the 50

resistance R

50, 8 pins of storage chip U9 FM25VN02 are connected with one end of the 45 capacitor C 45, the other end ground connection of the 45 capacitor C 45.

As shown in Figure 5, AD sampling section circuit comprises the 14 resistance R the 14, the 15 resistance R the 15, the 16 capacitor C 16, this partial circuit is for detection of lithium battery voltage, one end of the 14 resistance R 14 is connected with the other end of jumper cap P1, the other end of the 14 resistance R 14 is connected with 2 pins of the 15 resistance R the 15, the 16 capacitor C 16 and controller chip U4 MSP430F167, the other end ground connection of the other end of the 15 resistance R 15 and the 16 capacitor C 16.

As shown in Figure 6, key part circuit, for the debugging of hardware, comprises the 27 resistance R the 27, the 28 resistance R the 28, the 33 resistance R the 33, the 34 resistance R 34, the first button S1.The second button S2, one end of the 27 resistance R 27 is connected with one end of the 28 resistance R 28, the other end of the 27 resistance R 27 is connected with one end of the 34 resistance R 34, the other end of the 34 resistance R 34 is connected with one end of the second button S2, the other end ground connection of the second button S2, the other end of the 28 resistance R 28 is connected with one end of the 33 resistance R 33, the other end of the 33 resistance R 33 is connected with one end of the first button S1, the other end ground connection of the first button S1.

As shown in Figure 7, LED lamp partial circuit is for the debugging of hardware, comprise the 29 resistance R 29, the 30 resistance R 30, the 31 resistance R 31, the 5th light emitting diode D5, the 6th light emitting diode D6, the 7th light emitting diode D7, the other end of the 29 resistance R 29 is connected with the positive pole of the 5th light emitting diode D5, the negative pole of the 5th light emitting diode D5 is connected with 59 pins of controller chip U4 MSP430F167, the other end of the 30 resistance R 30 is connected with the positive pole of the 6th light emitting diode D6, the negative pole of the 6th light emitting diode D6 is connected with 60 pins of controller chip U4 MSP430F167, the other end of the 31 resistance R 31 is connected with the positive pole of the 7th light emitting diode D7, the negative pole of the 7th light emitting diode D7 is connected with 61 pins of controller chip U4 MSP430F167.

As shown in Figure 8, JTAG burning program circuit part comprises 1*7 row pin JTAG, the 11 resistance R 11, the 46

capacitor C

46, 1 pin of 1*7 row pin JTAG is connected with 54 pins of controller chip U4, 2 pins of 1*7 row pin JTAG are connected with 55 pins of controller chip U4, 3 pins of 1*7 row pin JTAG are connected with 56 pins of controller chip U4, 4 pins of 1*7 row pin JTAG are connected with 57 pins of controller chip U4, 5 pins of 1*7 row pin JTAG and 58 pins of controller chip U4, the other end of the 11 resistance R 11, one end of one end of the 5th button S5 and the 46 capacitor C 46 connects, the other end ground connection of the 5th button S5, the other end ground connection of the 46

capacitor C

46, 6 pins of 1*7 row pin JTAG are connected with the positive pole of the 4th electrochemical capacitor C4, the 7 pin ground connection of 1*7 row pin JTAG.

As shown in Figure 9, controller module comprises controller chip U4 MSP430F167, the 84 capacitor C the 84, the 33 capacitor C the 33, the 34 capacitor C 34, the first crystal oscillator Y1, the 20 capacitor C the 20, the 35 capacitor C the 35, the 36 capacitor C 36, the second crystal oscillator Y2,1*6 row pin J18,1*6 row pin J17,1*5 row pin J11,1*6 row pin J19.The 62 pin ground connection of the other end of the 84 capacitor C 84 and controller chip U4 MSP430F167, one end of the 33 capacitor C 33 and controller chip U4 MSP430F167 53 pins and one end of the first crystal oscillator Y1 be connected, one end of the 34 capacitor C 34 is connected with 52 pins of controller chip U4 MSP430F167 and the other end of the first crystal oscillator Y1, the other end ground connection of the other end of the 33 capacitor C 33 and the 34

capacitor C

34, 1 pin of controller chip U4 MSP430F167 is connected with one end of the 20 capacitor C 20, the other end ground connection of the 20 capacitor C 20, 2 pins of controller chip U4 MSP430F167 are connected with one end of the 15

resistance R

15, 3 pins of controller chip U4 MSP430F167 are connected with 3 pins of 1*6 row pin J17, 4 pins of controller chip U4 MSP430F167 are connected with 4 pins of 1*6 row pin J17, 5 pins of controller chip U4 MSP430F167 are connected with 5 pins of 1*6 row pin J17, 6 pins of controller chip U4 MSP430F167 are connected with 6 pins of 1*6 row pin J17, 8 pins of controller chip U4 MSP430F167 are connected with second one end of crystal oscillator Y2 and one end of the 35 capacitor C 35, the other end ground connection of the 35

capacitor C

35, 9 pins of controller chip U4 MSP430F167 are connected with second other end of crystal oscillator Y2 and one end of the 36 capacitor C 36, the other end ground connection of the 36 capacitor C 36, the 11 pin ground connection of controller chip U4 MSP430F167, 16 pins of controller chip U4 MSP430F167 are connected with the other end of the 27 resistance R 28, 17 pins of controller chip U4 MSP430F167 are connected with the other end of the 27 resistance R 27, 18 pins of controller chip U4 MSP430F167 are connected with 5 pins of 1*5 row pin J11, 29 pins of controller chip U4 MSP430F167 are connected with 4 pins of 1*6 row pin J19, 30 pins of controller chip U4 MSP430F167 are connected with 3 pins of 1*6 row pin J19, 31 pins of controller chip U4 MSP430F167 are connected with 2 pins of 1*6 row pin J19, 32 pins of controller chip U4 MSP430F167 are connected with 3 pins of 1*5 row pin J11, 33 pins of controller chip U4 MSP430F167 are connected with 4 pins of 1*5 row pin J11, 34 pins of controller chip U4 MSP430F167 are connected with 4 pins of 1*6 row pin J18, 35 pins of controller chip U4 MSP430F167 are connected with 3 pins of 1*6 row pin J18, 38 pins of controller chip U4 MSP430F167 are connected with 2 pins of 1*6 row pin J18, 39 pins of controller chip U4 MSP430F167 are connected with 1 pin of 1*6 row pin J18, 6 pins of 1*6 row pin J18, 1 pin of 1*6 row pin J17, the 6 pin ground connection of 2 pins of 1*5 row pin J11 and 1*6 row pin J19, 5 pins of 1*6 row pin J18, 5 pins of 2 pins of 1*6 row pin J17 and 1*6 row pin J19 are connected with the other end of jumper cap P1, 1 pin of 1*5 row pin J11 is connected with the other end of the 5th resistance R 5.

GPS module adopts ripe ATK-NEO-6M module, can communicate by serial ports and controller, and longitude and latitude data are more accurately provided, and arranges pin J18 be connected with monitoring node by 1*6.

Wireless communication module adopts CC1101 module, works in the free ISM band of 433MHz, exempts from licence and uses, and transparent data-interface is provided, and can adapt to any standard or off-gauge User Agreement, arranges pin J11 be connected with monitoring node by 1*5.

Sensor information acquisition module is mainly comprised of multiple gases concentration sensor and transmitter, and concrete sensor and transmitter type selecting are as follows:

MQ-136 hydrogen sulfide sensor is selected in the monitoring of sulfuretted hydrogen, and precision ± 1.0ppm can survey scope be 0～200ppm, while outputting analog signal and digital signal, and 3 pins of arranging pin J17 by 1*6 are connected with controller.

RBK-6000 type carbon disulphide monitoring transducer is selected in the monitoring of carbon disulphide, and precision ± 0.1ppm can survey scope be 0～50ppm, exportable 4-20mA standard current signal, and 4 pins of arranging pin J17 by 1*6 are connected with controller.

CLE-3611-400 type methyl mercaptan monitoring sensor is selected in the monitoring of methyl mercaptan, and precision ± 0.1ppm can survey scope be 0～10ppm, exportable 4-20mA standard current signal, and 5 pins of arranging pin J17 by 1*6 are connected with controller.

MS1100-P111 formaldehyde gas sensor is selected in the monitoring of formaldehyde, and precision ± 3.0ppm can survey scope be 0～1000ppm, exportable digital signal, and 4 pins of arranging pin J19 by 1*6 are connected with controller.

MQ-138 gas benzene sensor is selected in the monitoring of benzene, and precision ± 1.0ppm can survey scope be 0～100ppm, output 0～5V simulating signal, and 6 pins of arranging pin J17 by 1*6 are connected with controller.

The cardinal principle of this monitoring node circuit is by wireless communication module, to realize MANET after system initialization, stench class gas in the sensor information acquisition module collection monitoring node place gaseous environment of monitoring node and the information such as longitude and latitude of VOCs concentration, time and monitoring node place gaseous environment are sent to gateway by data by wireless communication module simultaneously.A/D function by controller is converted into digital signal by lithium battery input voltage, monitors the voltage of lithium battery.

As shown in figure 11, gateway comprises power management module, wireless communication module, outer memory module, clock module, sensor information acquisition module, GPS module, controller module and outside lithium battery solar battery part.The LED lamp being connected with controller is partly for hardware debug.

As shown in figure 12, power management module forms by take 3.3V voltage conversion circuit and the external 12V lithium battery that LTC1474-3.3 is core.1 pin of power interface J14 is connected with the 12V interface of lithium battery is anodal, 2 pins of power interface J14 and 3 pin ground connection, 1 pin of power interface J6 is connected with the anode interface of solar cell, 2 pins of power interface J6 and 3 pin ground connection, the 1 pin right-hand member of power interface J14 is connected with the positive pole of diode D9, the negative pole of diode D9 is connected with one end of the 147 resistance, the other end of the 147 resistance is connected with the negative pole of diode D102, the plus earth of diode D102, the negative pole of diode D102 is connected with one end of jumper cap P1, the other end of jumper cap P1 is connected with the positive pole of the first electrochemical capacitor C1, the minus earth of the first electrochemical capacitor C1.The 48 resistance one end is connected with the positive pole of the first electrochemical capacitor C1, the other end of the 48 resistance is connected with 3 pins of the 6th power supply chip U6 LTC1474-3.3,3 pins of the 6th power supply chip U6 LTC1474-3.3 are connected with one end of the 49 resistance R 49, the other end ground connection of the 49 resistance R 49.The first resistance R 1, the second resistance R 2, one end of the 8th capacitor C 8, one end of the 9th capacitor C 9, one end of 7 pins of the 6th power supply chip U6 LTC1474-3.3 and the 83rd capacitor C 83 connects, the first resistance R 1, the other end of the second resistance R 2 and the 8th capacitor C 8 is connected with 6 pins of the 6th power supply chip U6 LTC1474-3.3, the other end ground connection of the 9th capacitor C 9 and the 83rd electric capacity, one end of the 37 resistance R 37 is unsettled, the other end is connected with 8 pins of the 6th power supply chip U6 LTC1474-3.3, 8 pins of the 6th power supply chip U6 LTC1474-3.3 are connected with 2 pins of the 6th power supply chip U6 LTC1474-3.3, one end of the first inductance L 1, the positive pole of the 29 electrochemical capacitor C29, the 38 one end of capacitor C 38 and one end of the 137 resistance are connected with 1 pin of the 6th power supply chip U6 LTC1474-3.3, the other end of the first inductance L 1 is connected with 5 pins of the 6th power supply chip U6 LTC1474-3.3, 5 pins of the 6th power supply chip U6 LTC1474-3.3 are connected with the negative pole of the first diode D1, the plus earth of the first diode D1, other one end ground connection of the negative pole of the 29 electrochemical capacitor C29 and the 38 capacitor C 38, other one end of the 137 resistance R 137, one end of the 42 resistance R 42 connects and one end of the 5th resistance R 5 connects, and the other end of the 42 resistance R 42 is connected with the positive pole of the tenth diode D10, the minus earth of the tenth diode D10, the other end of the 5th resistance R 5, one end of the 13 capacitor C 13, the positive pole of the 4th electrochemical capacitor C4, one end of the 15 capacitor C 15, one end of the 11

resistance R

capacitor C

As shown in figure 13, clock module comprises clock chip U7 DS1302, the 39 capacitor C 39, the 40 capacitor C 40, the 41 capacitor C 41, the 3rd crystal oscillator Y3 and the first dry cell BT1, 1 pin of clock chip U7 DS1302 is connected with one end of the 39 capacitor C 39, the other end of the 39 capacitor C 39 is connected with one end of the 40 capacitor C 40, the other end of the 40 capacitor C 40 is connected with 2 pins of clock chip U7 DS1302 and one end of the 3rd crystal oscillator Y3, 3 pins of the 3rd other end of crystal oscillator Y3 and one end of the 41 capacitor C 41 and clock chip U7 DS1302 are connected, the 4 pin ground connection of the other end of the 41 capacitor C 41 and clock chip U7 DS1302, 5 pins of clock chip U7 DS1302 are connected with 14 pins of controller chip U4, 6 pins of clock chip U7 DS1302 are connected with 13 pins of controller chip U4, 7 pins of clock chip U7 DS1302 are connected with 12 pins of controller chip U4, 8 pins of clock chip U7 DS1302 are connected with the positive pole of the first dry cell BT1, the minus earth of the first dry cell BT1.

As shown in figure 14, outer memory module comprises storage chip U9 FM25VN02, the 47 resistance R 47, the 50 resistance R 50 and the 45

capacitor C

resistance R

As shown in figure 15, AD sampling section circuit comprises the 14 resistance R the 14, the 15 resistance R the 15, the 16 capacitor C 16, this partial circuit is for detection of lithium battery voltage, one end of the 14 resistance R 14 is connected with the other end of jumper cap P1, the other end of the 14 resistance R 14 is connected with 2 pins of the 15 resistance R the 15, the 16 capacitor C 16 and controller chip U4 MSP430F167, the other end ground connection of the other end of the 15 resistance R 15 and the 16 capacitor C 16.

As shown in figure 16, key part circuit, for the debugging of hardware, comprises the 27 resistance R the 27, the 28 resistance R the 28, the 33 resistance R the 33, the 34 resistance R 34, the first button S1.The second button S2, one end of the 27 resistance R 27 is connected with one end of the 28 resistance R 28, the other end of the 27 resistance R 27 is connected with one end of the 34 resistance R 34, the other end of the 34 resistance R 34 is connected with one end of the second button S2, the other end ground connection of the second button S2, the other end of the 28 resistance R 28 is connected with one end of the 33 resistance R 33, the other end of the 33 resistance R 33 is connected with one end of the first button S1, the other end ground connection of the first button S1.

As shown in figure 17, LED lamp partial circuit is for the debugging of hardware, comprise the 29 resistance R 29, the 30 resistance R 30, the 31 resistance R 31, the 5th light emitting diode D5, the 6th light emitting diode D6, the 7th light emitting diode D7, the other end of the 29 resistance R 29 is connected with the positive pole of the 5th light emitting diode D5, the negative pole of the 5th light emitting diode D5 is connected with 59 pins of controller chip U4 MSP430F167, the other end of the 30 resistance R 30 is connected with the positive pole of the 6th light emitting diode D6, the negative pole of the 6th light emitting diode D6 is connected with 60 pins of controller chip U4 MSP430F167, the other end of the 31 resistance R 31 is connected with the positive pole of the 7th light emitting diode D7, the negative pole of the 7th light emitting diode D7 is connected with 61 pins of controller chip U4 MSP430F167.

As shown in figure 18, JTAG burning program circuit part comprises 1*7 row pin JTAG, the 11 resistance R 11, the 46

capacitor C

As shown in figure 19, controller module comprises controller chip U4 MSP430F167, the 84 capacitor C the 84, the 33 capacitor C the 33, the 34 capacitor C 34, the first crystal oscillator Y1, the 20 capacitor C the 20, the 35 capacitor C the 35, the 36 capacitor C 36, the second crystal oscillator Y2,1*6 row pin J18,1*6 row pin J17,1*5 row pin J11,1*6 row pin J19.The 62 pin ground connection of the other end of the 84 capacitor C 84 and controller chip U4 MSP430F167, one end of the 33 capacitor C 33 and controller chip U4 MSP430F167 53 pins and one end of the first crystal oscillator Y1 be connected, one end of the 34 capacitor C 34 is connected with 52 pins of controller chip U4 MSP430F167 and the other end of the first crystal oscillator Y1, the other end ground connection of the other end of the 33 capacitor C 33 and the 34

capacitor C

resistance R

capacitor C

TD-LTE module can communicate by serial ports and controller, and can transmit more accurately related data, arranges pin J18 be connected with gateway by 1*6.

Wireless communication module adopts CC1101 module, works in the free ISM band of 433MHz, exempts from licence and uses, and transparent data-interface is provided, and can adapt to any standard or off-gauge User Agreement, arranges pin J11 be connected with gateway by 1*5.

The cardinal principle of this gateway circuit is by wireless communication module, to receive the Monitoring Data that monitoring node sends after system initialization, and useful data is stored to outer memory module, data is sent to server by TD-LTE module simultaneously.A/D function by controller is converted into digital signal by lithium battery input voltage, monitors the voltage of lithium battery.

Monitoring center consists of server, operation atmospheric environmental parameters monitoring of software, and this software is realized information interaction by Internet and gateway, and monitoring of software mainly comprises Internet communication, data base management system (DBMS), human-computer interaction interface etc.

The information such as the monitoring interface three-dimensional coordinate that each monitoring node distributes in observing system intuitively, detailed historical data and real time data, duty, also can obtain the information such as parameter, state of monitoring system integral body.Meanwhile, can carry out configuration operation to each node, control independently monitoring periods, emissive power of each monitoring node etc., even can online the software of node be upgraded, really realize the complete intelligent monitoring of node.

Claims

1. the stench class gas based on sensor network and VOCs monitoring system, comprise monitoring node, gateway and monitoring center,

Described monitoring node comprises power management module, wireless communication module, outer memory module, clock module, sensor information acquisition module, GPS module and controller module;

Described gateway comprises power management module, wireless communication module, outer memory module, clock module, TD-LTE module, controller module and outside lithium battery solar battery;

Described monitoring center builds on PC;

Being constructed as follows of monitoring node:

Power management module forms by take 3.3V voltage conversion circuit and the external 12V lithium battery that LTC1474-3.3 is core, 1 pin of power interface J14 is connected with the 12V interface of lithium battery is anodal, 2 pins of power interface J14 and 3 pin ground connection, 1 pin of power interface J6 is connected with the anode interface of solar cell, 2 pins of power interface J6 and 3 pin ground connection, the 1 pin right-hand member of power interface J14 is connected with the positive pole of diode D9, the negative pole of diode D9 is connected with one end of the 147 resistance, the other end of the 147 resistance is connected with the negative pole of diode D102, the plus earth of diode D102, the negative pole of diode D102 is connected with one end of jumper cap P1, the other end of jumper cap P1 is connected with the positive pole of the first electrochemical capacitor C1, the minus earth of the first electrochemical capacitor C1, the 48 resistance one end is connected with the positive pole of the first electrochemical capacitor C1, the other end of the 48 resistance is connected with 3 pins of the 6th power supply chip U6 LTC1474-3.3,3 pins of the 6th power supply chip U6 LTC1474-3.3 are connected with one end of the 49 resistance R 49, the other end ground connection of the 49 resistance R 49, the first resistance R 1, the second resistance R 2, one end of the 8th capacitor C 8, one end of the 9th capacitor C 9, one end of 7 pins of the 6th power supply chip U6 LTC1474-3.3 and the 83rd capacitor C 83 connects, the first resistance R 1, the other end of the second resistance R 2 and the 8th capacitor C 8 is connected with 6 pins of the 6th power supply chip U6 LTC1474-3.3, the other end ground connection of the 9th capacitor C 9 and the 83rd electric capacity, one end of the 37 resistance R 37 is unsettled, the other end is connected with 8 pins of the 6th power supply chip U6 LTC1474-3.3, 8 pins of the 6th power supply chip U6 LTC1474-3.3 are connected with 2 pins of the 6th power supply chip U6 LTC1474-3.3, one end of the first inductance L 1, the positive pole of the 29 electrochemical capacitor C29, the 38 one end of capacitor C 38 and one end of the 137 resistance are connected with 1 pin of the 6th power supply chip U6 LTC1474-3.3, the other end of the first inductance L 1 is connected with 5 pins of the 6th power supply chip U6 LTC1474-3.3, 5 pins of the 6th power supply chip U6 LTC1474-3.3 are connected with the negative pole of the first diode D1, the plus earth of the first diode D1, other one end ground connection of the negative pole of the 29 electrochemical capacitor C29 and the 38 capacitor C 38, other one end of the 137 resistance R 137, one end of the 42 resistance R 42 connects and one end of the 5th resistance R 5 connects, and the other end of the 42 resistance R 42 is connected with the positive pole of the tenth diode D10, the minus earth of the tenth diode D10, the other end of the 5th resistance R 5, one end of the 13 capacitor C 13, the positive pole of the 4th electrochemical capacitor C4, one end of the 15 capacitor C 15, one end of the 11 resistance R 11, 8 pins of the 9th exterior storage chip U9 FM25VN02, one end of the 50 resistance R 50, one end of the second pull-up resistor U2, one end of the 27 resistance R 27, one end of the 28 resistance R 28, one end of the 29 resistance R 29, one end of the 30 resistance R 30, one end of the 31 resistance R 31, one end of the 84 capacitor C 84, 64 pins of the 4th controller chip U4 MSP430F167, 1 pin of the 4th controller chip U4 MSP430F167, 1 pin of the 7th clock chip U7 DS1302, 1 pin of one end of the 39 capacitor C 39 and 1*5 row pin J11 connects, the 3.3V voltage conversion circuit that the LTC1474-3.3 of take is core provides 3.3V voltage as wireless communication module, outer memory module, clock module, sensor information acquisition module, GPS module, controller module, outside lithium battery is connected with this node by J14 interface, and for node provides 12V direct voltage source, solar cell is connected with this node by J6 interface, and effect is to be lithium cell charging,

Outer memory module comprises storage chip U9 FM25VN02, the 47 resistance R 47, the 50 resistance R 50 and the 45 capacitor C 45, 1 pin of storage chip U9 FM25VN02 is connected with 48 pins of controller chip U4 MSP430F167, 2 pins of storage chip U9 FM25VN02 are connected with 46 pins of controller chip U4 MSP430F167, 3 pins of storage chip U9 FM25VN02 are connected with other one end of the 47 resistance, the 4 pin ground connection of storage chip U9 FM25VN02, 5 pins of storage chip U9 FM25VN02 are connected with 45 pins of controller chip U4 MSP430F167, 6 pins of storage chip U9 FM25VN02 are connected with 47 pins of controller chip U4 MSP430F167, 7 pins of storage chip U9 FM25VN02 are connected with the other end of the 50 resistance R 50, 8 pins of storage chip U9 FM25VN02 are connected with one end of the 45 capacitor C 45, the other end ground connection of the 45 capacitor C 45,

Clock module comprises clock chip U7 DS1302, the 39 capacitor C 39, the 40 capacitor C 40, the 41 capacitor C 41, the 3rd crystal oscillator Y3 and the first dry cell BT1, 1 pin of clock chip U7 DS1302 is connected with one end of the 39 capacitor C 39, the other end of the 39 capacitor C 39 is connected with one end of the 40 capacitor C 40, the other end of the 40 capacitor C 40 is connected with 2 pins of clock chip U7 DS1302 and one end of the 3rd crystal oscillator Y3, 3 pins of the 3rd other end of crystal oscillator Y3 and one end of the 41 capacitor C 41 and clock chip U7 DS1302 are connected, the 4 pin ground connection of the other end of the 41 capacitor C 41 and clock chip U7 DS1302, 5 pins of clock chip U7 DS1302 are connected with 14 pins of controller chip U4, 6 pins of clock chip U7 DS1302 are connected with 13 pins of controller chip U4, 7 pins of clock chip U7 DS1302 are connected with 12 pins of controller chip U4, 8 pins of clock chip U7 DS1302 are connected with the positive pole of the first dry cell BT1, the minus earth of the first dry cell BT1,

AD sampling section circuit comprises the 14 resistance R the 14, the 15 resistance R the 15, the 16 capacitor C 16, this partial circuit is for detection of lithium battery voltage, one end of the 14 resistance R 14 is connected with the other end of jumper cap P1, the other end of the 14 resistance R 14 is connected with 2 pins of the 15 resistance R the 15, the 16 capacitor C 16 and controller chip U4 MSP430F167, the other end ground connection of the other end of the 15 resistance R 15 and the 16 capacitor C 16;

Key part circuit, for the debugging of hardware, comprises the 27 resistance R the 27, the 28 resistance R the 28, the 33 resistance R the 33, the 34 resistance R 34, the first button S1; The second button S2, one end of the 27 resistance R 27 is connected with one end of the 28 resistance R 28, the other end of the 27 resistance R 27 is connected with one end of the 34 resistance R 34, the other end of the 34 resistance R 34 is connected with one end of the second button S2, the other end ground connection of the second button S2, the other end of the 28 resistance R 28 is connected with one end of the 33 resistance R 33, the other end of the 33 resistance R 33 is connected with one end of the first button S1, the other end ground connection of the first button S1;

LED lamp partial circuit is for the debugging of hardware, comprise the 29 resistance R 29, the 30 resistance R 30, the 31 resistance R 31, the 5th light emitting diode D5, the 6th light emitting diode D6, the 7th light emitting diode D7, the other end of the 29 resistance R 29 is connected with the positive pole of the 5th light emitting diode D5, the negative pole of the 5th light emitting diode D5 is connected with 59 pins of controller chip U4 MSP430F167, the other end of the 30 resistance R 30 is connected with the positive pole of the 6th light emitting diode D6, the negative pole of the 6th light emitting diode D6 is connected with 60 pins of controller chip U4 MSP430F167, the other end of the 31 resistance R 31 is connected with the positive pole of the 7th light emitting diode D7, the negative pole of the 7th light emitting diode D7 is connected with 61 pins of controller chip U4 MSP430F167,

JTAG burning program circuit part comprises 1*7 row pin JTAG, the 11 resistance R 11, the 46 capacitor C 46, 1 pin of 1*7 row pin JTAG is connected with 54 pins of controller chip U4, 2 pins of 1*7 row pin JTAG are connected with 55 pins of controller chip U4, 3 pins of 1*7 row pin JTAG are connected with 56 pins of controller chip U4, 4 pins of 1*7 row pin JTAG are connected with 57 pins of controller chip U4, 5 pins of 1*7 row pin JTAG and 58 pins of controller chip U4, the other end of the 11 resistance R 11, one end of one end of the 5th button S5 and the 46 capacitor C 46 connects, the other end ground connection of the 5th button S5, the other end ground connection of the 46 capacitor C 46, 6 pins of 1*7 row pin JTAG are connected with the positive pole of the 4th electrochemical capacitor C4, the 7 pin ground connection of 1*7 row pin JTAG,

Controller module comprises controller chip U4 MSP430F167, the 84 capacitor C the 84, the 33 capacitor C the 33, the 34 capacitor C 34, the first crystal oscillator Y1, the 20 capacitor C the 20, the 35 capacitor C the 35, the 36 capacitor C 36, the second crystal oscillator Y2,1*6 row pin J18,1*6 row pin J17,1*5 row pin J11,1*6 row pin J19, the 62 pin ground connection of the other end of the 84 capacitor C 84 and controller chip U4 MSP430F167, one end of the 33 capacitor C 33 and controller chip U4 MSP430F167 53 pins and one end of the first crystal oscillator Y1 be connected, one end of the 34 capacitor C 34 is connected with 52 pins of controller chip U4 MSP430F167 and the other end of the first crystal oscillator Y1, the other end ground connection of the other end of the 33 capacitor C 33 and the 34 capacitor C 34, 1 pin of controller chip U4 MSP430F167 is connected with one end of the 20 capacitor C 20, the other end ground connection of the 20 capacitor C 20, 2 pins of controller chip U4 MSP430F167 are connected with one end of the 15 resistance R 15, 3 pins of controller chip U4 MSP430F167 are connected with 3 pins of 1*6 row pin J17, 4 pins of controller chip U4 MSP430F167 are connected with 4 pins of 1*6 row pin J17, 5 pins of controller chip U4 MSP430F167 are connected with 5 pins of 1*6 row pin J17, 6 pins of controller chip U4 MSP430F167 are connected with 6 pins of 1*6 row pin J17, 8 pins of controller chip U4 MSP430F167 are connected with second one end of crystal oscillator Y2 and one end of the 35 capacitor C 35, the other end ground connection of the 35 capacitor C 35, 9 pins of controller chip U4 MSP430F167 are connected with second other end of crystal oscillator Y2 and one end of the 36 capacitor C 36, the other end ground connection of the 36 capacitor C 36, the 11 pin ground connection of controller chip U4 MSP430F167, 16 pins of controller chip U4 MSP430F167 are connected with the other end of the 27 resistance R 28, 17 pins of controller chip U4 MSP430F167 are connected with the other end of the 27 resistance R 27, 18 pins of controller chip U4 MSP430F167 are connected with 5 pins of 1*5 row pin J11, 29 pins of controller chip U4 MSP430F167 are connected with 4 pins of 1*6 row pin J19, 30 pins of controller chip U4 MSP430F167 are connected with 3 pins of 1*6 row pin J19, 31 pins of controller chip U4 MSP430F167 are connected with 2 pins of 1*6 row pin J19, 32 pins of controller chip U4 MSP430F167 are connected with 3 pins of 1*5 row pin J11, 33 pins of controller chip U4 MSP430F167 are connected with 4 pins of 1*5 row pin J11, 34 pins of controller chip U4 MSP430F167 are connected with 4 pins of 1*6 row pin J18, 35 pins of controller chip U4 MSP430F167 are connected with 3 pins of 1*6 row pin J18, 38 pins of controller chip U4 MSP430F167 are connected with 2 pins of 1*6 row pin J18, 39 pins of controller chip U4 MSP430F167 are connected with 1 pin of 1*6 row pin J18, 6 pins of 1*6 row pin J18, 1 pin of 1*6 row pin J17, the 6 pin ground connection of 2 pins of 1*5 row pin J11 and 1*6 row pin J19, 5 pins of 1*6 row pin J18, 5 pins of 2 pins of 1*6 row pin J17 and 1*6 row pin J19 are connected with the other end of jumper cap P1, 1 pin of 1*5 row pin J11 is connected with the other end of the 5th resistance R 5,

GPS module adopts ATK-NEO-6M module, can communicate by serial ports and controller, and longitude and latitude data are more accurately provided, and arranges pin J18 be connected with monitoring node by 1*6;

Wireless communication module adopts CC1101 module, works in the free ISM band of 433MHz, exempts from licence and uses, and transparent data-interface is provided, and can adapt to any standard or off-gauge User Agreement, arranges pin J11 be connected with monitoring node by 1*5;

MQ-136 hydrogen sulfide sensor is selected in the monitoring of sulfuretted hydrogen, and precision ± 1.0ppm can survey scope be 0～200ppm, while outputting analog signal and digital signal, and 3 pins of arranging pin J17 by 1*6 are connected with controller;

RBK-6000 type carbon disulphide monitoring transducer is selected in the monitoring of carbon disulphide, and precision ± 0.1ppm can survey scope be 0～50ppm, exportable 4-20mA standard current signal, and 4 pins of arranging pin J17 by 1*6 are connected with controller;

CLE-3611-400 type methyl mercaptan monitoring sensor is selected in the monitoring of methyl mercaptan, and precision ± 0.1ppm can survey scope be 0～10ppm, exportable 4-20mA standard current signal, and 5 pins of arranging pin J17 by 1*6 are connected with controller;

MS1100-P111 formaldehyde gas sensor is selected in the monitoring of formaldehyde, and precision ± 3.0ppm can survey scope be 0～1000ppm, exportable digital signal, and 4 pins of arranging pin J19 by 1*6 are connected with controller;

MQ-138 gas benzene sensor is selected in the monitoring of benzene, and precision ± 1.0ppm can survey scope be 0～100ppm, output 0～5V simulating signal, and 6 pins of arranging pin J17 by 1*6 are connected with controller;

Described in being constructed as follows of gateway:

Power management module forms by take 3.3V voltage conversion circuit and the external 12V lithium battery that LTC1474-3.3 is core, 1 pin of power interface J14 is connected with the 12V interface of lithium battery is anodal, 2 pins of power interface J14 and 3 pin ground connection, 1 pin of power interface J6 is connected with the anode interface of solar cell, 2 pins of power interface J6 and 3 pin ground connection, the 1 pin right-hand member of power interface J14 is connected with the positive pole of diode D9, the negative pole of diode D9 is connected with one end of the 147 resistance, the other end of the 147 resistance is connected with the negative pole of diode D102, the plus earth of diode D102, the negative pole of diode D102 is connected with one end of jumper cap P1, the other end of jumper cap P1 is connected with the positive pole of the first electrochemical capacitor C1, the minus earth of the first electrochemical capacitor C1, the 48 resistance one end is connected with the positive pole of the first electrochemical capacitor C1, the other end of the 48 resistance is connected with 3 pins of the 6th power supply chip U6 LTC1474-3.3,3 pins of the 6th power supply chip U6 LTC1474-3.3 are connected with one end of the 49 resistance R 49, the other end ground connection of the 49 resistance R 49, the first resistance R 1, the second resistance R 2, one end of the 8th capacitor C 8, one end of the 9th capacitor C 9, one end of 7 pins of the 6th power supply chip U6 LTC1474-3.3 and the 83rd capacitor C 83 connects, the first resistance R 1, the other end of the second resistance R 2 and the 8th capacitor C 8 is connected with 6 pins of the 6th power supply chip U6 LTC1474-3.3, the other end ground connection of the 9th capacitor C 9 and the 83rd electric capacity, one end of the 37 resistance R 37 is unsettled, the other end is connected with 8 pins of the 6th power supply chip U6 LTC1474-3.3, 8 pins of the 6th power supply chip U6 LTC1474-3.3 are connected with 2 pins of the 6th power supply chip U6 LTC1474-3.3, one end of the first inductance L 1, the positive pole of the 29 electrochemical capacitor C29, the 38 one end of capacitor C 38 and one end of the 137 resistance are connected with 1 pin of the 6th power supply chip U6 LTC1474-3.3, the other end of the first inductance L 1 is connected with 5 pins of the 6th power supply chip U6 LTC1474-3.3, 5 pins of the 6th power supply chip U6 LTC1474-3.3 are connected with the negative pole of the first diode D1, the plus earth of the first diode D1, other one end ground connection of the negative pole of the 29 electrochemical capacitor C29 and the 38 capacitor C 38, other one end of the 137 resistance R 137, one end of the 42 resistance R 42 connects and one end of the 5th resistance R 5 connects, and the other end of the 42 resistance R 42 is connected with the positive pole of the tenth diode D10, the minus earth of the tenth diode D10, the other end of the 5th resistance R 5, one end of the 13 capacitor C 13, the positive pole of the 4th electrochemical capacitor C4, one end of the 15 capacitor C 15, one end of the 11 resistance R 11, 8 pins of the 9th exterior storage chip U9 FM25VN02, one end of the 50 resistance R 50, one end of the second pull-up resistor U2, one end of the 27 resistance R 27, one end of the 28 resistance R 28, one end of the 29 resistance R 29, one end of the 30 resistance R 30, one end of the 31 resistance R 31, one end of the 84 capacitor C 84, 64 pins of the 4th controller chip U4 MSP430F167, 1 pin of the 4th controller chip U4 MSP430F167, 1 pin of the 7th clock chip U7 DS1302, 1 pin of one end of the 39 capacitor C 39 and 1*5 row pin J11 connects, the 3.3V voltage conversion circuit that the LTC1474-3.3 of take is core provides 3.3V voltage as wireless communication module, outer memory module, clock module, sensor information acquisition module, GPS module, controller module,

TD-LTE module can communicate by serial ports and controller, and can transmit more accurately related data, arranges pin J18 be connected with gateway by 1*6;