CN202133421U - Monitoring system of poisonous and harmful gas in chemical zone - Google Patents
Monitoring system of poisonous and harmful gas in chemical zone Download PDFInfo
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- CN202133421U CN202133421U CN201120169339U CN201120169339U CN202133421U CN 202133421 U CN202133421 U CN 202133421U CN 201120169339 U CN201120169339 U CN 201120169339U CN 201120169339 U CN201120169339 U CN 201120169339U CN 202133421 U CN202133421 U CN 202133421U
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Abstract
The utility model relates to a monitoring system of poisonous and harmful gas in a chemical zone, comprising a sensor node, an acquisition base station and a monitoring center. The sensor node comprises a power supply management module, a controller module, a detection module, a communication module and a data storage module, which are in charge of perceiving, processing and transmitting parameter information such as temperature, humidity, air pressure, H2S concentration, SO2 concentration, and Cl2 concentration. The acquisition base station comprises the power supply management module, the controller module, the communication module and the data storage module. The monitoring center comprises a GPRS gateway and a data center. According to the utility model, various environmental parameter information can be acquired in real time.
Description
Technical field
The utility model belongs to wireless sensor network, embedded system technology field, is specifically related to a kind of chemical industrial park toxic and harmful monitoring system that can be used for.
Background technology
In recent years, along with the sustained and rapid development of China's economy, the chemical industrial park of various places is surging forward, and produced simultaneously environmental problem also more and more receives people's attention.Real-time monitoring to chemical industrial park helps the protection to environment, helps the overall planning of government.
Wireless sensor network (Wireless Sensor Network; WSN) be exactly to form by being deployed in cheap microsensor nodes a large amount of in the monitored area; The network system of the self-organization of a multi-hop that forms through communication; Its objective is in the perception of cooperation ground, collection and the processing network's coverage area by the information of perceptive object, and send to the observer.
The ZigBee technology be a kind of closely, low complex degree, low-power consumption, low rate, double-direction radio mechanics of communication cheaply.Be mainly used in the application of carrying out data transmission between the various electronic equipments that distance is short, low in energy consumption and transfer rate is not high and periodic data, intermittent data and the transmission of low reaction time data typically being arranged.The ZigBee network is mainly set up for industry spot robotization control data transmission.
Summary of the invention:
The utility model provides a kind of monitoring system of gathering and handling environmental parameters such as the airborne temperature of chemical industrial park, humidity, air pressure,
concentration,
concentration,
concentration; This system bulk is little, cost is low, low in energy consumption, reliability is high.
The concrete scheme of the utility model is:
A kind of chemical industrial park toxic and harmful monitoring system comprises sensor node, gathers base station and monitoring center.
Said sensor node comprises power management module, controller module, detection module, communication module and data memory module, is responsible for parameter informations such as perception, processing and transmission temperature, humidity, air pressure,
concentration,
concentration,
concentration.
Said sensor node power management module comprises that model is the 12V lithium battery of JS-12V-4.4AH; With the LM2596 voltage regulator is the 5V voltage conversion circuit of core; With the LM1117-3.3 voltage regulator is the 3.3V voltage conversion circuit of core, is core 1.8V voltage conversion circuit with the LM1117-1.8 voltage regulator.The lithium battery output voltage is supplied with transmitter, converts the 5V power supply to through voltage conversion circuit and supplies with detection module, 3.3V voltage conversion circuit.3.3V power supply is supplied with detection module, communication module, data memory module, controller module and 1.8V voltage conversion circuit.1.8V power supply is supplied with controller module.
Said sensor node controller module comprises that model is the controller of AT91SAM7S64.Controller module connects power module, detection module, communication module and data memory module.
Said sensor node detection module comprises that model is the humiture transmitter of PC62; Model is the air pressure detection chip of MS5607; Model is the concentration of hydrogen sulfide transmitter of BG-EX-
; Model is BG-EX-
sulfur dioxide concentration transmitter; Model is BG-EX-
chlorine gas concentration transmitter and is the I/V change-over circuit of core with LM324AN.The transmitter input is connected with the I/V change-over circuit; The output of I/V change-over circuit is connected with controller AD interface; The air pressure detection chip is connected with controller SPI interface.
Said sensor node communication module comprises with MAX3232 being the RS-232 serial communication electric level interface change-over circuit of core, is connected with the UART interface of controller module, and the communication module power end is connected with the 3.3V voltage conversion circuit.
Said sensor node data memory module comprises that model is Flash and the SD_CARD storage of AT45DB161D, is connected with controller module SPI interface, and the data memory module power end is connected with the 3.3V voltage conversion circuit.
Said collection base station comprises power management module, controller module, communication module, data memory module; Can be general with sensor node; The difference of base station and sensor node is that the base station need not image data; Do not articulate sensor, major function is environmental parameter and the warning message that the processing and transmitting node is gathered.
Said collection base station communication module comprises with MAX3232 being the RS-232 serial communication electric level interface change-over circuit of core, is connected with the UART interface of controller module, and the communication module power end is connected with the 3.3V voltage conversion circuit.Communication module is carried out information interaction through GPRS and monitoring center; Carry out information interaction through ZigBee and sensor node.
Said monitoring center comprises GPRS gateway and data center.The GPRS gateway is responsible for receiving environmental parameter and the warning message that send the base station; Data center mainly is made up of server; Be connected with the GPRS gateway through serial ports or Ethernet interface, the application program of server shows the mode that the environmental parameter decompress(ion) of compressed encoding contracts with real-time curve or form.In addition, monitoring center also comprises database and monitoring software.Monitoring software provides complete monitoring interface, realizes functions such as the inquiry of historical data, real time data demonstration, data analysis, alarm condition indication and inquiry.
The utility model has following beneficial effect with respect to prior art:
(1) the utility model can be gathered various environmental parameters information in real time;
(2) adopted ZigBee technology, compared, reduced power consumption, reduced cost, improved transfer rate, real-time is stronger with other communication modes;
(3) equipment components all adopts the device that meets the technical grade standard, under rugged surroundings, has stronger adaptability;
(4) sensor node, base station all take into full account protection against the tide, anticorrosion, explosion-proof, and factor such as essential safety, adopt the design of degree of protection IP66, explosive-proof grade Ex ia IICT6.
Description of drawings
Fig. 1 is the utility model system architecture synoptic diagram;
Fig. 2 is the utility model sensor node structural representation;
Fig. 3 a, 3b, 3c are the utility model sensor node power management module schematic diagram;
Fig. 4 is the utility model sensor node controller module schematic diagram;
Fig. 5 is the utility model sensor node gas detection module principle figure;
Fig. 6 is the utility model sensor node communication module schematic diagram;
Fig. 7 is the utility model sensor node data memory module schematic diagram;
Fig. 8 gathers the architecture of base station synoptic diagram for the utility model;
Fig. 9 gathers base station communication module principle figure for the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1, the utility model system architecture is divided into three levels: sensor node, collection base station, monitoring center.Whole chemical industrial park is divided into the plurality of sub zone; Environmental parameters such as all subregion sensor node collecting temperature, humidity, air pressure,
concentration,
concentration,
concentration realize that through ZigBee is technological the information transmission is also finally accomplished information interaction with the collection base station between node; Monitoring center is connected with a plurality of collections base station through GPRS network, obtains the environmental parameter that the related sub-regions sensor node is gathered, and handles and analyze, the variation of the atmospheric environment situation of monitoring chemical industrial park.Remote terminal user is realized the all-weather real-time monitoring to the chemical industrial park atmospheric environment through Internet, and the data that collect are carried out Treatment Analysis, makes and judging or decision-making.
As shown in Figure 2, sensor node is by power management module, controller module, gas detection module, communication module and data memory module.Sensor node is the elementary cell of network.Toxic and harmful monitoring network based on the ZigBee technology is little by a large amount of volumes, cost is low, and the sensor node with radio communication, data processing function is formed.Sensor node is responsible for gathering and handling the airborne temperature of chemical industrial park; Humidity; Air pressure;
concentration;
concentration; Parameter informations such as
concentration.
Shown in Fig. 3 a, 3b, 3c, the sensor node power management module comprises the 12V lithium battery, 5V voltage conversion circuit (Fig. 3 a), 3.3V voltage conversion circuit (Fig. 3 b), 1.8V voltage conversion circuit (Fig. 3 c).The model of 12V lithium battery is JS-12V-4.4AH, inserts the 5V voltage conversion circuit through JP6.Lithium battery anode connects 2 pins of JP6, and negative pole connects 1 pin of JP6.Capacitor C 13 positive poles connect 2 pins of JP6; Minus earth.(Fig. 3 core a) is that model is the voltage regulator of LM2596 to the 5V voltage conversion circuit.This voltage regulator 1 pin is an input pin, connects 2 pins of JP6; 2 pins are 5V voltage output pin; 3 pins and 5 pin ground connection; Inductance L of 4 pins series connection 1 connects the output of 5V voltage.Diode D3 plus earth, negative pole connect 2 pins of LM2596 voltage regulator.Capacitor C 14 positive poles connect 2 pins of LM2596 voltage regulator, minus earth.Detection module, 3.3V voltage conversion circuit are supplied with in the output of 5V voltage conversion circuit.3.3V the core of voltage conversion circuit (Fig. 3 b) is a model is the voltage regulator of LM1117-3.3.2 pins of JP5 connect the output of 5V voltage conversion circuit; 1 pin connects 1 pin of voltage regulator.3 pins of J8 connect voltage regulator 1 pin; 1,2 pin ground connection.The positive pole of capacitor C 3, C4 connects 3 pins of J8, minus earth.Voltage regulator 2 pin ground connection; 3 pins are 3V voltage output pin.Capacitor C 2, anodal voltage regulator 3 pins, the minus earth of connecting of C6.3.3V air pressure detection chip, communication module, data memory module, controller module and 1.8V voltage conversion circuit are supplied with in the output of voltage conversion circuit.1.8V the core of voltage conversion circuit (Fig. 3 c) is a model is the voltage regulator of LM1117-1.8.Capacitor C 7, anodal voltage regulator 1 pin, the minus earth of connecting of C8.Voltage regulator 1 pin connects the output of 3.3V voltage conversion circuit; 2 pin ground connection; 3 pins are 1.8V voltage output pin.Capacitor C 9, C10 connect voltage regulator 3 pins.1.8V controller module is supplied with in the output of voltage conversion circuit.
As shown in Figure 4, sensor node controller module core is that model is the controller of AT91SAM7S64.UART interface 34 pins of controller, 14 pins, 35 pins, 11 pins are connected with communication module.Controller AD interface 3 pins, 4 pins, 5 pins, 9 pins, 10 pins are connected with detection module.Controller 7 pins, 18 pins, 45 pins, 58 pins, 59 pins are connected with the output of 3.3V voltage conversion circuit.Controller 1 pin, 8 pins, 12 pins, 24 pins, 54 pins, 64 pins are connected with the output of 1.8V voltage conversion circuit.Controller 2 pins, 17 pins, 46 pins, 60 pin ground connection.Capacitor C 5, C6, C7, C8, the anodal output of 1.8V voltage conversion circuit, the minus earth of connecting of C9.Capacitor C 10, C11, C12, C13, C14, the anodal output of 3.3V voltage conversion circuit, the minus earth of connecting of C15.Reset circuit takes simple button to reset, and controller reset signal input pin 39 pins after S1 presses, are given the controller reset signal, the hand-reset controller through button S1 ground connection.
As shown in Figure 5, the sensor node detection module comprises humiture transmitter, air pressure detection chip, concentration of hydrogen sulfide transmitter, sulfur dioxide concentration transmitter, chlorine gas concentration transmitter and I/V change-over circuit.I/V change-over circuit core devices model is LM324AN.Resistance R of 1 pin series connection 21 of I/V change-over circuit U4A connects controller 9 pins; Resistance R of 2 pins series connection 20 connects temperature input signal T1; 3 pins connect 1 pin; 4 pins connect the output of 5V changing voltage; 11 pin ground connection.Resistance R 15 1 end ground connection, the other end connects temperature input signal T1.Capacitor C 15 positive poles connect 2 pins of I/V change-over circuit U4A, minus earth.Resistance R of 7 pins series connection 24 of I/V change-over circuit U4B connects controller 10 pins; Resistance R of 6 pins series connection 23 connects humidity input signal T2; 5 pins connect 7 pins; 4 pins connect the output of 5V voltage conversion circuit; 11 pin ground connection.Resistance R 22 1 ends connect humidity input signal T2, other end ground connection.Capacitor C 16 anodal 6 pins that connect I/V change-over circuit U4B, minus earth.Resistance R of 8 pins series connection 27 of I/V change-over circuit U4C connects controller 3 pins; Resistance R of 9 pins series connection 26 connects the concentration of hydrogen sulfide input signal; 10 pins connect 8 pins; 4 pins connect the output of 5V voltage conversion circuit; 11 pin ground connection.Resistance R 25 1 ends connect concentration of hydrogen sulfide input signal T3, other end ground connection.Capacitor C 17 anodal 9 pins that connect I/V change-over circuit U4C, minus earth.Resistance R of 14 pins series connection 30 of I/V change-over circuit U4D connects controller 4 pins; Resistance R of 13 pins series connection 29 connects sulfur dioxide concentration input signal T4; 12 pins connect 14 pins; 4 pins connect the output of 5V voltage conversion circuit; 11 pin ground connection.Resistance R 28 1 ends connect sulfur dioxide concentration input signal T4, other end ground connection.Capacitor C 18 anodal 13 pins that connect I/V change-over circuit U4D, minus earth.Resistance R of 7 pins series connection 33 of I/V change-over circuit U7B connects controller 5 pins; Resistance R of 6 pins series connection 32 connects chlorine gas concentration input signal T5; 5 pins connect 7 pins; 4 pins connect the output of 5V voltage conversion circuit; 11 pin ground connection.Resistance R 31 1 ends connect chlorine gas concentration input signal T5, other end ground connection.Capacitor C 19 anodal 6 pins that connect I/V change-over circuit U7B, minus earth.Air pressure detection chip model is MS5607, and 1 pin connects the output of 3.3V voltage conversion circuit, 2,3 pin ground connection; 4,5 pins connect controller 52 pins; 6 pins connect controller 27 pins, and 7 pins connect controller 22 pins, and 8 pins connect controller 21 pins.Capacitor C 20 positive poles connect the output of 3.3V voltage conversion circuit, minus earth.Humiture transmitter model is PC62, temperature range-20 ~+80 ℃, temperature accuracy ± 0.2 ℃, humidity range 0-100%RH, humidity precision < ± 2%RH.Concentration of hydrogen sulfide transmitter model is BG-EX-<img file=" 899622DEST_PATH_IMAGE002.GIF " he=" 25 " img-content=" drawing " img-format=" jpg " inline=" no " orientation=" portrait " wi=" 34 " />; Range 0-100PPm, precision is < ± 2% (F.S).Sulfur dioxide concentration transmitter model is BG-EX-<img file=" 391783DEST_PATH_IMAGE004.GIF " he=" 25 " img-content=" drawing " img-format=" jpg " inline=" no " orientation=" portrait " wi=" 30 " />; Range 0-100PPm, precision is < ± 2% (F.S).Chlorine gas concentration transmitter model is BG-EX-<img file=" 695726DEST_PATH_IMAGE006.GIF " he=" 25 " img-content=" drawing " img-format=" jpg " inline=" no " orientation=" portrait " wi=" 25 " />; Range 0-20PPm, precision is < ± 2% (F.S).
As shown in Figure 6, the sensor node communication module comprises with MAX3232 being the RS-232 serial communication electric level interface change-over circuit of core.The ZigBee module is connected with controller through RS-232 serial communication level shifting circuit.RS-232 serial communication level shifting circuit 1 pin connects capacitor C 5 positive poles; 2 pins connect capacitor C 8 positive poles, and the C8 negative pole connects 16 pins; 3 pins connect capacitor C 5 negative poles; 4 pins connect capacitor C 9 positive poles; 5 pins connect capacitor C 9 negative poles; 6 pin ground connection; 7 pins connect 2 pins of RS-232 joint COMB; 8 pins connect 3 pins of RS-232 joint COMB; 9 pins connect controller 11 pins; 10 pins connect controller 14 pins; 15 pins connect capacitor C 7 positive poles, C7 minus earth; 16 pins connect the output of 3.3V voltage conversion circuit.Capacitor C 10 anodal RS-232 serial communication level shifting circuit 16 pins, the C10 minus earths of connecting.The 5 pin ground connection of RS-232 joint COMB.
As shown in Figure 7, the sensor node data memory module comprises that model is Flash and the SD_CARD storage of AT45DB161D.1 pin of Flash connects controller 22 pins; 2 pins connect controller 21 pins; 3,5,6 pins connect the output of 3.3V voltage conversion circuit; 4 pins connect 1 pin of JP3; 7 pin ground connection; 8 pins connect controller 27 pins.1 pin of SD_CARD connects 3 pins of JP3; 2 pins connect controller 22 pins; 4 pins connect power supply SD_VDD; 5 pins connect controller 21 pins; 7 pins connect controller 27 pins; 8, connect respectively resistance R 12, a R13 of 9 pins connects 13 pins; 3,6,12,14,15 pin ground connection.Resistance R 15 1 ends connect 1 pin of SD_CARD, and the other end connects power supply SD_VDD.Resistance R 16 1 ends connect 2 pins of SD_CARD, and the other end connects power supply SD_VDD.Resistance R 17 1 ends connect 5 pins of SD_CARD, and the other end connects power supply SD_VDD.Resistance R 18 1 ends connect 7 pins of SD_CARD, and the other end connects power supply SD_VDD.Resistance R 14 1 ends connect the output of 3.3V voltage conversion circuit, and the other end connects capacitor C 11 positive poles.Capacitor C 11 positive poles are drawn power supply SD_VDD, minus earth.2 pins of JP3 connect controller 28 pins.Select storage mode through JP3: when 1,2 pins of JP3 connect, select the Flash storage; When 2,3 pins of JP3 connect, select the SD_CARD storage.
As shown in Figure 8, the utility model is gathered the base station and is comprised power management module, communication module, controller module, data memory module.Be distributed in collection base station in the ZigBee network and be used to receive environmental parameter and the warning message that a plurality of sensor nodes in the subregion are gathered, it is carried out fusion treatment after, be sent to monitoring center through GPRS network.Gather the base station and in whole monitoring network, serve as the gateway between ZigBee network and the GPRS network.Gathering the base station can be general with sensor node, and the difference of base station and sensor node is that the base station need not image data, does not articulate sensor, and major function is environmental parameter and the warning message that the processing and transmitting node is gathered.
As shown in Figure 9, the utility model is gathered the base station communication module and is comprised with MAX3232 being the RS-232 serial communication electric level interface change-over circuit of core.GPRS is connected with controller UART interface through RS-232 serial communication level shifting circuit with ZigBee.RS-232 serial communication level shifting circuit 1 pin connects capacitor C 5 positive poles; 2 pins connect capacitor C 8 positive poles, and the C8 negative pole connects 16 pins; 3 pins connect capacitor C 5 negative poles; 4 pins connect capacitor C 9 positive poles; 5 pins connect capacitor C 9 negative poles; 6 pin ground connection; 7 pins connect 2 pins of RS-232 joint COMB; 8 pins connect 3 pins of RS-232 joint COMB; 9 pins connect controller 11 pins; 10 pins connect controller 14 pins; 11 pins connect controller 34 pins; 12 pins connect controller 35 pins; 13 pins connect 3 pins of RS-232 joint COMA; 14 pins connect 2 pins of RS-232 joint COMA; 15 pins connect capacitor C 7 positive poles, C7 minus earth; 16 pins connect the output of 3.3V voltage conversion circuit.Capacitor C 10 anodal RS-232 serial communication level shifting circuit 16 pins, the C10 minus earths of connecting.The 5 pin ground connection of RS-232 joint COMA and COMB.
The utility model course of work is: whole chemical industrial park is divided into the plurality of sub zone, and all subregion sensor node is gathered environmental parameter, realizes that through ZigBee is technological the information transmission is also finally accomplished information interaction with the collection base station between node; Monitoring center is connected with a plurality of collections base station through GPRS network, obtains the environmental parameter that the related sub-regions sensor node is gathered, and handles and analyze, the variation of the atmospheric environment situation of monitoring chemical industrial park.Remote terminal user is realized the all-weather real-time monitoring to the chemical industrial park atmospheric environment through Internet, and the data that collect are carried out Treatment Analysis, makes and judging or decision-making.
Claims (1)
1. a chemical industrial park toxic and harmful monitoring system comprises sensor node, gathers base station and monitoring center, it is characterized in that:
Said sensor node comprises power management module, controller module, detection module, communication module and data memory module, is responsible for perception, processing and transmission temperature, humidity, air pressure,
concentration,
concentration,
concentration parameter information;
Power management module in the said sensor node comprises that model is the 12V lithium battery of JS-12V-4.4AH; With the LM2596 voltage regulator is the 5V voltage conversion circuit of core; With the LM1117-3.3 voltage regulator is the 3.3V voltage conversion circuit of core, is core 1.8V voltage conversion circuit with the LM1117-1.8 voltage regulator; The lithium battery output voltage is supplied with transmitter, converts the 5V power supply to through voltage conversion circuit and supplies with detection module, 3.3V voltage conversion circuit; 3.3V power supply is supplied with detection module, communication module, data memory module, controller module and 1.8V voltage conversion circuit; 1.8V power supply is supplied with controller module;
Controller module in the said sensor node comprises that model is the controller of AT91SAM7S64; Controller module connects power module, detection module, communication module and data memory module;
The sensor node detection module includes models for the PC62 temperature and humidity transmitter, model MS5607 pressure detection chip, model BG-EX-
hydrogen sulfide concentration of transmitter, model BG-EX-
sulfur dioxide concentration of transmitter, model BG-EX-
LM324AN chlorine concentration of transmitter as well as the core of the I / V conversion circuit; Transmitter Input and I / V conversion circuit; I / V conversion circuit output interface controller AD; pressure detecting chip SPI interface with the controller;
Communication module in the said sensor node comprises with MAX3232 being the RS-232 serial communication electric level interface change-over circuit of core, is connected with the UART interface of controller module, and the communication module power end is connected with the 3.3V voltage conversion circuit;
Data memory module in the said sensor node comprises that model is Flash and the SD_CARD storage of AT45DB161D, is connected with controller module SPI interface, and the data memory module power end is connected with the 3.3V voltage conversion circuit;
Said collection base station comprises power management module, controller module, communication module, data memory module, can be general with sensor node, gather environmental parameter and warning message that base station processes and sending node are gathered;
Said collection base station communication module comprises with MAX3232 being the RS-232 serial communication electric level interface change-over circuit of core, is connected with the UART interface of controller module, and the communication module power end is connected with the 3.3V voltage conversion circuit; Communication module is carried out information interaction through GPRS and monitoring center; Carry out information interaction through ZigBee and sensor node;
Said monitoring center comprises GPRS gateway and data center; The GPRS gateway is responsible for receiving environmental parameter and the warning message that send the base station, and data center is made up of server, is connected with the GPRS gateway through serial ports or Ethernet interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120169339U CN202133421U (en) | 2011-05-25 | 2011-05-25 | Monitoring system of poisonous and harmful gas in chemical zone |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120169339U CN202133421U (en) | 2011-05-25 | 2011-05-25 | Monitoring system of poisonous and harmful gas in chemical zone |
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| CN202133421U true CN202133421U (en) | 2012-02-01 |
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| CN201120169339U Expired - Lifetime CN202133421U (en) | 2011-05-25 | 2011-05-25 | Monitoring system of poisonous and harmful gas in chemical zone |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200456A (en) * | 2011-05-25 | 2011-09-28 | 杭州电子科技大学 | System for monitoring toxic and harmful gases in chemical industry park |
| CN103364029A (en) * | 2012-04-01 | 2013-10-23 | 洛阳博特自动化工程有限公司 | Electronic measuring system |
| CN103364530A (en) * | 2013-07-19 | 2013-10-23 | 聚光科技(杭州)股份有限公司 | Remote gas monitoring system and method |
| CN104849407A (en) * | 2015-05-13 | 2015-08-19 | 许金兰 | Portable multifunctional air quality detector and realizing method thereof |
| CN107490533A (en) * | 2017-04-27 | 2017-12-19 | 安徽华脉科技发展有限公司 | A kind of open haze monitoring system |
| CN108171373A (en) * | 2017-12-26 | 2018-06-15 | 杭州电子科技大学 | A kind of chemical industrial park poison gas reveals best-effort path planing method |
| US20200333272A1 (en) * | 2018-09-26 | 2020-10-22 | Nanjing Tech University | Method for predicting corrosion and spontaneous combustion of sulfur-related petrochemical equipment |
-
2011
- 2011-05-25 CN CN201120169339U patent/CN202133421U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200456A (en) * | 2011-05-25 | 2011-09-28 | 杭州电子科技大学 | System for monitoring toxic and harmful gases in chemical industry park |
| CN103364029A (en) * | 2012-04-01 | 2013-10-23 | 洛阳博特自动化工程有限公司 | Electronic measuring system |
| CN103364530A (en) * | 2013-07-19 | 2013-10-23 | 聚光科技(杭州)股份有限公司 | Remote gas monitoring system and method |
| CN103364530B (en) * | 2013-07-19 | 2015-09-30 | 聚光科技(杭州)股份有限公司 | Remote gas monitoring system and method |
| CN104849407A (en) * | 2015-05-13 | 2015-08-19 | 许金兰 | Portable multifunctional air quality detector and realizing method thereof |
| CN107490533A (en) * | 2017-04-27 | 2017-12-19 | 安徽华脉科技发展有限公司 | A kind of open haze monitoring system |
| CN108171373A (en) * | 2017-12-26 | 2018-06-15 | 杭州电子科技大学 | A kind of chemical industrial park poison gas reveals best-effort path planing method |
| CN108171373B (en) * | 2017-12-26 | 2021-12-03 | 杭州电子科技大学 | Escape path planning method for toxic gas leakage in chemical industry park |
| US20200333272A1 (en) * | 2018-09-26 | 2020-10-22 | Nanjing Tech University | Method for predicting corrosion and spontaneous combustion of sulfur-related petrochemical equipment |
| US11428654B2 (en) * | 2018-09-26 | 2022-08-30 | Nanjing Tech University | Method for predicting corrosion and spontaneous combustion of sulfur-related petrochemical equipment |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20120201 Effective date of abandoning: 20130306 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20120201 Effective date of abandoning: 20130306 |
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| RGAV | Abandon patent right to avoid regrant |