CN206961295U - Multiple spot detects coal gas leakage alarming system - Google Patents
Multiple spot detects coal gas leakage alarming system Download PDFInfo
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- CN206961295U CN206961295U CN201720934265.8U CN201720934265U CN206961295U CN 206961295 U CN206961295 U CN 206961295U CN 201720934265 U CN201720934265 U CN 201720934265U CN 206961295 U CN206961295 U CN 206961295U
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Abstract
Multiple spot detects coal gas leakage alarming system, is made up of host computer, a telegon and multiple terminal detection nodes.Described terminal detection node includes CO gas sensors A1, trans-impedance amplifier and warning circuit are formed by operational amplifier IC1 and R1, CO gas sensors A1 output is connected to the input of trans-impedance amplifier, and the output of trans-impedance amplifier is connected to Zigbee module IC2 analog input.Terminal detection node uses lithium battery power supply.Warning circuit is made up of LED 1, and it is connected to Zigbee module IC2 output；It is connected between described host computer and telegon by serial ports.The utility model, which employs wireless sensor network, to carry out data transmission, and has and exempts to connect up, the advantages of facilitating quick for installation, is particularly adapted to the occasion of Mobile solution；By the way of Distributed Multi detection, terminal detection node can be directly mounted at possible leak point and be implemented around measuring nearby, monitor the carbonomonoxide concentration in each region.
Description
Technical field
The utility model belongs to internet of things field, is a kind of gas leakage warning system.
Background technology
Coal gas is a kind of inflammable poisonous gas, and the danger zone that iron and steel enterprise's coal gas may be revealed is big, relevant device and
Pipe network is numerous, how to monitor the gas concentration at scene in real time, and the leak point for finding coal gas early is the important of gas safety production
Problem.In coal gas region, maintenance, maintainer often carry portable gas alarm instrument, detection be present on a large scale for a long time
The defects of scope is small, and personnel's carelessness causes gas poisoning.And coal gas region cloth power line has strict requirements, one kind need not show
Field wiring, multiple spot detection gas leakage warning system has very high practical value in iron and steel enterprise.
The U of Chinese patent CN 205247572 " the coal gas leakage detection, alarm system based on ZigBee " employ wireless senser
Network carries out data transmission, and has the advantages that installation is simple, and cost is low, small power consumption, but only devises single-point detection, detection range
It is small, reveal and alarm suitable for family gas.
The U of China Patent No. CN 202887403 " industrial gas wireless remote alarming terminal installation " use radiotechnics
Carry out data transmission, there is the advantages that installation is simple, and the reliability and stability of data transfer are higher；The utility model is open
Be a terminal installation, practicality also need master system to coordinate, the MANET function of also not possessing wireless sensor network,
Equipment power dissipation is higher, needs cloth power line to put each terminal module, is not suitable for the occasion of mobile detection.
The U of Chinese patent CN 203325167 " the industrial gas alarm terminal device of power line carrier, PLC " are by power line
Road carries out data transmission, poor anti jamming capability, needs installation wiring at the scene.
The U of Chinese patent CN 205157536 " iron and steel enterprise's gas leakage remote detection device " grind the nothing of China using Taiwan
Line Ethernet EKI -6323AG carries out data transmission, reliable communications, but equipment price is higher；Distributed multiple spot detection so that
Host computer can inquire about the carbonomonoxide concentration in each region by wireless receiver.Selected by the terminal of the utility model
Element power consumption is higher, needs cloth power line to be not suitable for the mobile occasion detected to each terminal module.
Utility model content
The utility model aims to provide a kind of gas leakage warning system, and it is passed using ZigBee technology composition micro radio
Sensor network transmits data, has and exempts to connect up, convenience quick for installation, detection range is big, early warning is early, can pass through upper calculating
Machine inquires about the advantages that carbonomonoxide concentration in each region, is particularly adapted to Mobile solution occasion.
The technical solution of the utility model：
Multiple spot detects coal gas leakage alarming system, by host computer, a telegon and multiple terminal detection node groups
Into.Described terminal detection node includes CO gas sensor A1, and trans-impedance amplifier and report are formed by operational amplifier IC1 and R1
Alert circuit, CO gas sensors A1 output are connected to the input of trans-impedance amplifier, and the output of trans-impedance amplifier is connected to
Zigbee module IC2 analog input.Terminal detection node uses lithium battery power supply.Warning circuit is by LED 1
Composition, it is connected to Zigbee module IC2 output；It is connected between described host computer and telegon by serial ports.
Described wireless communication module is Zigbee communication module.The optional TI/CHIPCON of described Zigbee module,
Company's Related product such as EMBER (ST), JENNIC (prompt power), FREESCALE, MICROCHIP.
Carbon Monoxide Detection module uses FIGARO（Figaro）Button-shaped CO gas sensors TGS514.
The advantages of the utility model：The utility model is carried out data transmission using ZigBee technology, compared with the prior art,
Major advantage has two：First, the utility model carries out data transmission as a result of wireless sensor network, has and exempts from cloth
Line, the advantages of facilitating quick for installation, it is particularly adapted to the occasion of Mobile solution.Zigbee chips and CO gas sensors
TGS5141 has low power consumption characteristic, can be worked long hours using lithium battery power supply without changing battery.Second, in coal
The larger occasion in gas leakage danger zone, there is that detection range is wide, early warning is early, and the one of each region can be inquired about by host computer
The advantages of aoxidizing concentration of carbon.This is due to the mode that the utility model employs Distributed Multi detection, and terminal detection node can
It is directly installed near possible leak point, near the joint, valve such as gas pipe, realization measures nearby, terminal detection node
Comprising the information such as node number and the gas concentration value detected in the information of transmission, monitoring is each in real time for such monitoring personnel can
The carbonomonoxide concentration in region.
Brief description of the drawings
Fig. 1 is the electrical schematic diagram of terminal detection node.
In figure：A1-CO gas sensors, C1- electric capacity, R1- resistance, R2- resistance, IC1- operational amplifiers, IC2-
Zigbee module, LED1- light emitting diodes.
Fig. 2 is network arrangement figure.
In figure：1- host computers, 2- telegons, 3- terminal detection nodes.
Embodiment
Knot accompanying drawing is described further with embodiment to the utility model below.
Multiple spot detects coal gas leakage alarming system by host computer, a telegon and multiple terminal detection node groups
Into.
The electrical schematic diagram of terminal detection node is as shown in Figure 1.Terminal detection node uses lithium battery power supply, and CO gases pass
Sensor A1 causes the output current minor variations at its both ends because of the change of gas concentration, and the electric current is by access operational amplifier
IC1 inverting input, operational amplifier IC1 and R1 composition trans-impedance amplifiers, the A1 current signals exported are converted into voltage
Signal.IC2 is Zigbee module, and operational amplifier IC1 output voltage is sent to IC2 analog input port, in IC2
The middle measurement for realizing gas concentration signal, quantization, coding and wireless transmission.When the concentration of coal gas reaches the lower limit of alarm,
LED1 flicker alarms.
Network arrangement figure is as shown in Figure 2：A number of terminal detection node 3 is arranged according to the actual needs, in this example
In arrange four terminal detection nodes, each terminal detection node is sent out the gas concentration information detected by certain cycle
Give telegon 2.Telegon 2 should be responsible for the foundation of wireless sensor network, and multiple send terminal detection node is believed again
Breath sends host computer 1 to.It is connected between host computer 1 and telegon 2 by serial ports.Host computer 1 will receive end
The information of end detection node is decoded, recorded, shown, and can generate the curve changed over time, when the coal gas received is dense
When number of degrees value is more than minimum alarm value, sound and light alarm is sent.
Multiple terminal detection nodes 3 are arranged on to the scene for needing to monitor gas concentration, typically may be mounted at
Near possible leak point, near the joint, valve such as gas pipe, it can also be evenly arranged in a certain region a number of
Terminal detection node, realize the monitoring comprehensive to the region gas concentration.Host computer 1 is typically mounted at interior, is moving
Dynamic application scenario can also be installed at the scene, and it is connected between telegon 2 by serial ports.Telegon 2 is responsible for wireless network
Establish and safeguard, multiple terminal detection nodes can be automatically added to network after upper electricity, and host computer 1 can be sent out by telegon 2
The online situation of order inquiry terminal detection node.Terminal detection node can be by certain cycle actively to coordination after adding network
Device 2 sends the gas concentration data message in the region.Telegon 2 by serial ports by the information transmission that terminal detection node is sent to
The information for receiving terminal detection node decoded, recorded, shown by host computer 1, host computer 1, and can generate with
The curve of time change, when the gas concentration numerical value received is more than minimum alarm value, send sound and light alarm.
Claims (2)
1. multiple spot detects coal gas leakage alarming system, including host computer, a telegon and terminal detection node, its feature
It is：Described terminal detection node includes CO gas sensor A1, by operational amplifier IC1 and R1 form trans-impedance amplifier and
Warning circuit, CO gas sensors A1 output are connected to the input of trans-impedance amplifier, and the output of trans-impedance amplifier is connected to
Zigbee module IC2 analog input, terminal detection node use lithium battery power supply；Warning circuit is by LED 1
Composition, it is connected to Zigbee module IC2 output；It is connected between described host computer and telegon by serial ports.
2. multiple spot according to claim 1 detects coal gas leakage alarming system, it is characterised in that：Carbon Monoxide Detection module
Using FIGARO button-shaped CO gas sensors TGS514.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720934265.8U CN206961295U (en) | 2017-07-30 | 2017-07-30 | Multiple spot detects coal gas leakage alarming system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720934265.8U CN206961295U (en) | 2017-07-30 | 2017-07-30 | Multiple spot detects coal gas leakage alarming system |
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| Publication Number | Publication Date |
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| CN206961295U true CN206961295U (en) | 2018-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720934265.8U Active CN206961295U (en) | 2017-07-30 | 2017-07-30 | Multiple spot detects coal gas leakage alarming system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110470605A (en) * | 2018-05-11 | 2019-11-19 | 西安电子科技大学 | A kind of multinode optoacoustic gas detection method based on fiber coupling mode |
| CN111965459A (en) * | 2020-08-20 | 2020-11-20 | 天津天大求实电力新技术股份有限公司 | A power consumption safety monitoring analysis intelligent terminal for electric fire hidden danger is judged |
-
2017
- 2017-07-30 CN CN201720934265.8U patent/CN206961295U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110470605A (en) * | 2018-05-11 | 2019-11-19 | 西安电子科技大学 | A kind of multinode optoacoustic gas detection method based on fiber coupling mode |
| CN110470605B (en) * | 2018-05-11 | 2022-02-18 | 西安电子科技大学 | Multi-node photoacoustic gas detection method based on optical fiber coupling mode |
| CN111965459A (en) * | 2020-08-20 | 2020-11-20 | 天津天大求实电力新技术股份有限公司 | A power consumption safety monitoring analysis intelligent terminal for electric fire hidden danger is judged |
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