CN112145977A - Underground pipe network gas dangerous source monitoring and early warning system - Google Patents
Underground pipe network gas dangerous source monitoring and early warning system Download PDFInfo
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- CN112145977A CN112145977A CN202010974394.6A CN202010974394A CN112145977A CN 112145977 A CN112145977 A CN 112145977A CN 202010974394 A CN202010974394 A CN 202010974394A CN 112145977 A CN112145977 A CN 112145977A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/10—Arrangements for supervising or controlling working operations for taking out the product in the line
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2273—Atmospheric sampling
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—Specially adapted to detect a particular component
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—Specially adapted to detect a particular component
- G01N33/004—Specially adapted to detect a particular component for CO, CO2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—Specially adapted to detect a particular component
- G01N33/0042—Specially adapted to detect a particular component for SO2, SO3
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—Specially adapted to detect a particular component
- G01N33/0044—Specially adapted to detect a particular component for H2S, sulfides
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/02—Mechanical actuation
- G08B13/08—Mechanical actuation by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/1895—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using light change detection systems
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
- G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
The application relates to a monitoring and early warning system for a gas dangerous source of an underground pipe network, relates to the technical field of supervision of gas safety of the underground pipe network, and particularly relates to a monitoring and early warning system for a gas dangerous source of the underground pipe network, which comprises a front-end monitoring device and a communication device, wherein the front-end monitoring device comprises a pipe network information acquisition module for acquiring information of gas of a municipal pipe network, a front-end host, an environmental parameter acquisition module and a video monitoring group which are respectively connected with the front-end host, and the video monitoring group is used for acquiring a field video image; the environment parameter acquisition module is used for acquiring field environment parameters, and the field environment parameters comprise wind speed, atmospheric humidity and temperature; the front-end host is connected to the communication device, the communication device is connected to a cloud platform, and the cloud platform is connected with a plurality of user terminals. This application can assist the staff to strengthen doing the management and control to the monitoring point scene.
Description
Technical Field
The application relates to the technical field of supervision of gas safety of underground pipe networks, in particular to a monitoring and early warning system for a gas dangerous source of an underground pipe network.
Background
Urban sewers and septic tanks are responsible for receiving and transporting domestic sewage and industrial wastewater, but because of their relative sealing and special environment, organic and inorganic substances in sewage are decomposed into various toxic, harmful, flammable and explosive gases under the action of microorganisms in closed pipelines under anaerobic conditions. If the management is not good, gas accumulation is easy to cause, after a certain concentration is reached, people are poisoned if leakage occurs, and if open fire occurs, explosion is easy to occur, so that casualty accidents are caused.
The patent with publication number CN205719067U discloses an underground pipe network comprehensive monitoring device, which is used for collecting and monitoring real-time data of municipal underground pipe network gas, liquid level, well covers and the like, and realizing monitoring and early warning on the safe operation of municipal sewage pipe network facilities, and the device consists of a power supply, a monitoring unit, a sensor, an expansion interface and a communication module; the power supply is connected with the monitoring unit, the sensor, the expansion interface and the communication module, the sensor and the expansion interface are connected with the monitoring unit and the communication module, and the communication module transmits data with the public network base station through GPRS; this device cooperation three-dimensional GIS integrated management platform uses, realizes that the poisonous and harmful gas of underground pipe network monitors, the dangerous source gas monitoring of gas pipe network, rainwater pipe network liquid level monitoring, inspection shaft lid lose control and the accurate location of pipeline to the accurate location underground pipeline of cooperation tracer marker.
The above provides a device that allows for some monitoring of gas hazards in underground piping, but suffers from the following drawbacks: the monitoring system focuses on monitoring and alarming gas dangerous sources, and relatively inconvenient workers conduct field control on monitoring points, so that a new technical scheme is provided.
Disclosure of Invention
In order to assist staff to strengthen and to do management and control to the monitoring point scene, this application provides a gaseous danger source monitoring early warning system of underground pipe network.
The above object of the present invention is achieved by the following technical solutions:
a monitoring and early warning system for underground pipe network gas dangerous sources comprises a front-end monitoring device and a communication device connected to the front-end monitoring device, wherein the front-end monitoring device comprises a pipe network information acquisition module used for acquiring information of gas of a municipal pipe network, a front-end host, an environmental parameter acquisition module and a video monitoring group, the environmental parameter acquisition module and the video monitoring group are respectively connected to the front-end host, and the video monitoring group is arranged in an installation area of the pipe network information acquisition module and is used for acquiring field video images;
the environment parameter acquisition module is arranged in an installation area of the pipe network information acquisition module and is used for acquiring field environment parameters, and the field environment parameters comprise wind speed, atmospheric humidity and temperature;
the front-end host is connected to the communication device, the communication device is connected to a cloud platform, and the cloud platform is connected with a plurality of user terminals.
By adopting the technical scheme, the pipe network information acquisition module, the environmental parameter acquisition module and the video monitoring group send acquired information to the cloud platform, and workers access the cloud platform through the user terminal; subsequently, except setting up alarm conditions according to the actual demand, utilize this application to do the monitoring early warning, the user can also long-rangely obtain the on-the-spot picture and the environmental information of monitoring point, for example: checking a monitoring picture to know whether artificial interference or damage exists in a monitoring field; the environment information is checked, whether the field environment has large interference on the monitoring data or not is known, and therefore the field control effect is effectively improved.
The present application may be further configured in a preferred example to: the pipe network information acquisition module comprises a gas detection unit, wherein the gas detection unit comprises one or more of a methane sensor, a hydrogen sulfide sensor, a carbon monoxide sensor, a sulfur dioxide sensor, an oxygen sensor and an oil gas sensor;
the environment parameter acquisition module comprises one or more of a wind speed sensor, a humidity sensor and a temperature sensor;
the video monitoring group comprises a plurality of night vision cameras;
the communication device comprises one or more of GPRS/4G/NB-IOT modules.
The present application may be further configured in a preferred example to: the front-end host comprises a protective shell and a machine body core arranged in the protective shell, wherein an interaction port is formed in one side of an inner cavity of the protective shell, an adaptive cover plate is connected to the interaction port in a closing mode, an anti-theft trigger mechanism used for detecting opening and closing of the cover plate and feeding back an anti-theft detection signal to the machine body core is arranged in the protective shell, and the machine body core is connected to a cloud platform;
the shooting range of the video monitoring group covers the inner cavity opening side of the protective shell.
By adopting the technical scheme, the anti-theft triggering mechanism can be triggered when the cover plate is opened by a worker, the machine body core correspondingly sends an alarm signal to the cloud platform, and the cloud platform sends alarm information to the user terminal, so that the user can know that the cover plate is opened in time; subsequently, the monitoring pictures collected by the video monitoring group can be checked by the staff through the user terminal, and the field is controlled, so that the safety and the anti-theft effect are effectively improved.
The present application may be further configured in a preferred example to: the anti-theft triggering mechanism comprises a light intensity sensor or an optical coupling circuit.
Through adopting above-mentioned technical scheme, theftproof trigger mechanism opens and close the change of the internal light intensity of protective housing that leads to through the apron and makes the judgement.
The present application may be further configured in a preferred example to: the utility model discloses a gas sampling device, including protective housing, be formed with gaseous sampling chamber in the protective housing be provided with in the gaseous sampling chamber and connect respectively in the air collecting pump and the air discharge pump of organism core, the inlet port of air collecting pump and the exhaust port of air discharge pump communicate outside protective housing, pipe network information acquisition module's a plurality of sensor sets up in gaseous sampling chamber.
By adopting the technical scheme, the plurality of sensors of the pipe network information acquisition module are integrated in the protective shell and are relatively difficult to lose; meanwhile, due to the arrangement of the air collecting pump and the air exhaust pump, the use effect of the air collecting pump and the air exhaust pump cannot be interfered.
The present application may be further configured in a preferred example to: and the air outlet port of the air collecting pump is communicated with an air drying filter, and the air drying filter is connected to the core of the machine body.
Through adopting above-mentioned technical scheme, gaseous really need dry earlier before getting into gas sampling chamber and filter to can improve the detection precision of each sensor of this application, still can reduce the damage that steam caused to the electrical components in the protecting sheathing simultaneously.
The present application may be further configured in a preferred example to: the front-end host machine also comprises a display unit connected to the core of the machine body, the display unit is fixed on the protective shell, and the display surface of the display unit is exposed outside the protective shell;
the machine body core is connected with a remote controller.
By adopting the technical scheme, the display unit can be used for displaying part of information of the front-end host; simultaneously, still because be provided with the remote controller, so in protective housing mounted position difficult touch timely relatively, the management and control is done to front end host computer etc. that the staff can handle remote controller cooperation display element, convenient relatively.
The present application may be further configured in a preferred example to: the device comprises a front-end monitoring device and a user terminal, wherein the front-end monitoring device comprises a front-end host computer and is characterized in that information codes are arranged on each device of the front-end monitoring device and the front-end host computer respectively, the information codes contain information of the devices and comprise one-dimensional codes and/or two-dimensional codes, the user terminal comprises a fixed terminal and a mobile terminal which are connected to a cloud platform respectively, and the mobile terminal reads the information codes and sends the information codes to the cloud platform.
By adopting the technical scheme, on one hand, the user can conveniently collect and manage the information of each device of the front-end monitoring device, and on the other hand, in the subsequent maintenance process, the staff can quickly know the information of each device and carry out fault removal, model determination, device replacement and the like.
The present application may be further configured in a preferred example to: the front-end monitoring device further comprises a positioning module arranged in an installation area of the pipe network information acquisition module, and the positioning module is connected to the cloud platform.
By adopting the technical scheme, when the front-end monitoring device fails and the like, the user can access the cloud platform through the user terminal to quickly inquire the address of the cloud platform and perform maintenance work.
The present application may be further configured in a preferred example to: the cloud platform establishes a GIS system or is connected with GIS resources to form a cloud GIS, monitoring project nodes are established on a map of the cloud GIS, and information collected by the front-end monitoring device is fed back and stored in the monitoring project nodes.
By adopting the technical scheme, when the number of the front-end monitoring devices is large, namely the monitoring points are large, the user can access the cloud GIS through the user terminal, and then quickly find the monitoring points according to the addresses and control the target monitoring points.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the method comprises the following steps that a front-end monitoring device is arranged, and the front-end monitoring device can collect pictures and environmental parameters of monitoring points in addition to gas information of a municipal pipe network; the front-end monitoring device is connected with the cloud platform through the communication device, and the cloud platform is connected with the user terminal; therefore, the user can set an alarm condition according to actual requirements, monitor and early warn by using the method, and remotely acquire the field picture and the environmental information of the monitoring point, for example: checking a monitoring picture to know whether artificial interference or damage exists in a monitoring field; the environment information is checked, whether the field environment has large interference on the monitoring data or not is known, and therefore the field control effect is effectively improved;
2. the front-end host comprises a protective shell and a machine body core arranged in the protective shell, an anti-theft triggering mechanism is arranged in the protective shell, after the anti-theft triggering mechanism is triggered, the cloud platform can correspondingly send alarm information to the user terminal to prompt a user, and a subsequent user can acquire a picture near the protective shell through the user terminal, so that the field control effect is further improved;
3. information codes are arranged on all devices of the front-end monitoring device, and workers can recognize the information codes through the user terminal and upload information to the cloud platform, so that management of the devices of a monitoring point can be facilitated, and later maintenance work is facilitated;
4. the front-end monitoring device also comprises a positioning module, so that subsequent workers can conveniently and quickly find monitoring points.
Drawings
FIG. 1 is a first block diagram of the system of the present application to show the overall architecture;
FIG. 2 is a second block diagram of the system of the present application, showing the control structure of the machine core;
FIG. 3 is a schematic diagram of the overall architecture of the front-end host of the present application;
FIG. 4 is a schematic partial exploded view of FIG. 3;
fig. 5 is a schematic circuit diagram of the optical coupler circuit of the application.
In the figure, 1, a pipe network information acquisition module; 11. a gas detection unit; 12. an underground drainage pipe network detection unit; 2. an environmental parameter acquisition module; 3. a video monitoring group; 31. a night vision camera; 4. a front-end host; 40. a gas sampling chamber; 41. a protective housing; 411. a cover plate; 42. a machine body core; 43. a display unit; 5. an anti-theft triggering mechanism; 6. a remote controller; 71. an air collecting pump; 72. an exhaust pump; 73. a gas drying filter; 81. fixing the terminal; 82. a mobile terminal.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
Referring to fig. 1, the underground pipe network gas hazard source monitoring and early warning system disclosed in the present application includes a front-end monitoring device, a communication device connected to the front-end monitoring device, a cloud platform connected to the communication device, and a user terminal connected to the cloud platform.
Wherein, front end monitoring device includes:
the pipe network information acquisition module 1 is used for acquiring information of gas of a municipal pipe network;
the environmental parameter acquisition module 2 is arranged in the installation area of the pipe network information acquisition module 1 and is used for acquiring field environmental parameters, and the field environmental parameters comprise wind speed, atmospheric humidity and temperature;
the video monitoring group 3 comprises a plurality of night vision cameras 31, the night vision cameras 31 are installed in an installation area (within 10m of a point location) of the pipe network information acquisition module 1, and camera ends of the night vision cameras face the installation point of the pipe network information acquisition module 1 and are used for acquiring field video images;
and the front-end host 4 is respectively connected with the pipe network information acquisition module 1, the environmental parameter acquisition module 2 and the video monitoring group 3 in an electric signal mode, is used for field management and control and is connected with the cloud platform.
The communication device comprises one or more of GPRS/4G/NB-IOT modules, and electric signals of the communication device are connected to the front-end host 4 and the cloud platform so as to realize information transmission between the front end and the cloud platform.
The user terminal comprises a fixed terminal 81 and a mobile terminal 82, the fixed terminal 81 comprises a computer, and the mobile terminal 82 comprises a mobile phone and a tablet, which are respectively connected to the cloud platform.
The working principle is as follows:
the pipe network information acquisition module 1, the environmental parameter acquisition module 2 and the video monitoring group 3 send acquired information to the cloud platform, and workers access the cloud platform through user terminals;
subsequently, except setting up alarm conditions according to the actual demand, utilize this application to do the monitoring early warning, the user can also long-rangely obtain the on-the-spot picture and the environmental information of monitoring point, for example: checking a monitoring picture to know whether artificial interference or damage exists in a monitoring field; the environment information is checked, whether the field environment has large interference on the monitoring data or not is known, and therefore the field control effect is effectively improved.
Pipe network information acquisition module 1 includes gaseous detecting element 11 and a set of according to this application whether do data support service and the underground drainage pipe network detecting element 12 of selective configuration for wisdom city, sponge city, wherein underground drainage pipe network detecting element 12 is including installing velocity of flow and flow sensor in underground drainage pipe network.
The gas detection unit 11 comprises one or more of a methane sensor, a hydrogen sulfide sensor, a carbon monoxide sensor, a sulfur dioxide sensor, an oxygen sensor and an oil gas sensor, and the type, the quantity and the installation of the sensors are determined according to the on-site monitoring requirement.
The embodiment is described by taking the sensor mounted on the ground as an example.
The environmental parameter acquisition module 2 comprises one or more of a wind speed sensor, a humidity sensor and a temperature sensor.
Referring to fig. 2 and 3, the front-end host 4 includes a protective housing 41 and a machine core 42 fixedly installed in the protective housing 41, wherein the machine core 42 can select a device with data processing capability, such as an embedded industrial control host, and is connected to the cloud platform.
Referring to fig. 3, the protective case 41 is a hollow rectangular parallelepiped made of a metal subjected to an anti-rust treatment; one side of the inner cavity of the protective housing 41 is an opening structure, an adaptive cover plate 411 hinged with the protective housing 41 is arranged at the opening, and locks are installed on the free side of the cover plate 411 and the protective housing 41 so as to lock and fix the cover plate 411 when necessary.
The protective case 41 is attached above a position such as a drain port by a rod or the like.
Referring to fig. 4, a partition plate is fixed in the protective housing 41, the partition plate divides the inner cavity of the protective housing 41 to form a mounting cavity of the body core 42 and a gas sampling chamber 40, and the gas sampling chamber 40 fixes a sealing cover by bolts toward the cover plate 411 to prevent gas from flowing into the mounting cavity of the body core 42.
Each sensor of the gas detection unit 11 is installed in the gas sampling chamber 40.
The gas sampling chamber 40 is also internally provided with a gas collection pump 71 and an exhaust pump 72 which are respectively connected with the machine body core 42 through electric signals, the gas inlet port of the gas collection pump 71 is communicated outside the protective shell 41 through a pipeline, the exhaust port of the exhaust pump 72 is communicated outside the protective shell 41 through a pipeline, and the two ports are far away from each other so as to reduce interference.
When in use, the body core 42 controls the air collecting pump 71 to pump air to the air sampling chamber 40, and controls the air exhausting pump 72 to send the air in the air sampling chamber 40 out of the protective shell 41; in the process, the gas detection unit 11 detects the air in the gas sampling chamber 40.
To improve gas detection accuracy and the like, a gas drying filter 73, such as: a semiconductor refrigeration dehumidification type steam-water separator; the gas dry filter is electrically connected to the body core 42, and the gas inlet port thereof is fixed and communicated with the gas outlet port of the gas collection pump 71, and the gas outlet port thereof is disposed in the gas sampling chamber 40.
In the use process, the gas is dried and filtered before entering the gas sampling chamber 40, so that the influence of water vapor is reduced.
The speed sensors of the environmental parameter acquisition module 2 are mounted on the upper part of the protective shell 41, while the main bodies of the temperature sensor and the humidity sensor are mounted in the protective shell 41, and the detection ends extend out of the protective shell 41.
Referring to fig. 2, the integrated installation of multiple devices to the protective housing 41 can improve the use safety and the anti-theft effect of the present application, but the present embodiment further optimizes the present application because of its greater limitations.
An anti-theft trigger mechanism 5 for detecting the opening and closing of the cover 411 and feeding back a detection signal to the machine body core 42 is arranged in the protective shell 41.
The anti-theft triggering mechanism 5 comprises a light intensity sensor or an optical coupling circuit, if the light intensity sensor is selected, the body core 42 judges the opening and closing of the cover plate 411 according to the intensity of light fed back; if the optical coupling circuit is selected, for example:
referring to fig. 5, pin 1 of the optocoupler (U1) is connected in series with the photo resistor R1 and coupled to the power source Vcc 1; the pin 2 is grounded; its pin 4 is coupled with power supply Vcc 2; a pin 3 of the resistor R2 is coupled, the other end of the resistor R2 is coupled to a base of an NPN transistor Q1, a collector of the NPN transistor Q1 is connected in series with the resistor R3 and is coupled to a power supply Vcc3, and an emitter of the NPN transistor Q1 is grounded; a wire is drawn between the collector of NPN transistor Q1 and resistor R3 as signal output terminal OUT.
When the cover plate 411 is opened, the photoresistor R1 receives light, the resistance value of the photoresistor R1 is reduced, the pin 4 and the pin 3 of the U1 are conducted, the NPN type triode Q1 is further conducted, the level of the output end OUT is changed from a high level to a low level, and therefore opening and closing detection of the cover plate 411 is achieved.
The use principle is as follows:
when the cover plate 411 is opened, the anti-theft trigger mechanism 5 outputs a detection signal to a single chip microcomputer/MCU controller, and the detection signal at the moment conforms to a preset alarm threshold value in the controller, so that the controller can send a corresponding alarm signal to the front-end host 4, the alarm signal is transmitted to the cloud platform by the front-end host 4, and the alarm signal is sent to the user terminal after being processed by the cloud platform to remind a user in time.
In order to facilitate users to know the site of a monitoring point in time after receiving the alarm information, at least one night vision camera 31 faces the cover plate 411; or directly select a fisheye camera to be mounted above the protective housing 41. At this time, the user can directly check the site of the monitoring point through the user terminal and know the use state of the protective shell 41 to a certain extent, so that the site management and control effect is effectively improved.
In order to further enhance the control effect on the monitoring point site, information codes are respectively arranged on each device of the front-end monitoring device and the front-end host 4, the information codes comprise two-dimensional codes/one-dimensional codes, and the information codes can be fixed by adopting a mode of laser engraving or bonding paper with the information codes; the information code contains information about the device for which it is provided, for example: the category, the model, the supplier, the installation time, the installer, and the like, which are obtained by the worker operating the two-dimensional code generator and set on the corresponding device.
Subsequently, the staff can scan the code through the mobile terminal 82 and read the information code to obtain relevant information, and guide the maintenance and other work, and meanwhile, the staff can also realize the management and control of the monitoring point by uploading the information contained in the information code and managing.
Referring to fig. 2, a display unit 43 (display screen) is embedded and fixed on the side wall (or the cover 411) of the protective housing 41, and the display unit 43 is electrically connected to the machine core 42, which can be used to display part of basic parameters, such as: ambient temperature, humidity, etc.; the body core 42 configures a wireless module such as: a Bluetooth module/infrared transceiver module; the wireless module is connected with an adaptive remote controller 6.
When the remote control device is used, a user can simply control the machine body core by using the remote controller 6, and the influence of overhigh installation position of the protective shell 41 on the field control effect is reduced.
Because in the using process, the problems of damage and the like of each electronic device and the like can be caused inevitably, and the monitoring points of the system are relatively more, the front-end monitoring device further comprises a positioning module 10, for example: and the GPS module and the like are installed in the protective shell 41 and directly connected to the cloud platform or the machine body core 42, so that a subsequent worker can quickly and accurately find a corresponding monitoring point during maintenance.
Meanwhile, the cloud platform of the application also establishes a GIS system or is connected with GIS resources to form a cloud GIS, monitoring project nodes are established on a map of the cloud GIS, and information collected by the front-end monitoring module and information of information codes are respectively fed back and stored in the monitoring project nodes, so that workers can quickly and conveniently look up relevant data.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides a gaseous danger source monitoring and forewarning system of underground pipe network, includes front end monitoring device and connects in front end monitoring device's communication device, front end monitoring device is including being used for doing information acquisition's pipe network information acquisition module (1) its characterized in that to the gas of municipal pipe network: the front-end monitoring device also comprises a front-end host (4), and an environmental parameter acquisition module (2) and a video monitoring group (3) which are respectively connected with the front-end host (4), wherein the video monitoring group (3) is arranged in the installation area of the pipe network information acquisition module (1) and is used for acquiring a field video image;
the environment parameter acquisition module (2) is arranged in an installation area of the pipe network information acquisition module (1) and is used for acquiring field environment parameters, and the field environment parameters comprise wind speed, atmospheric humidity and temperature;
the front-end host (4) is connected to a communication device, the communication device is connected to a cloud platform, and the cloud platform is connected with a plurality of user terminals.
2. The underground pipe network gas hazard source monitoring and early warning system according to claim 1, characterized in that:
the pipe network information acquisition module (1) comprises a gas detection unit (11), wherein the gas detection unit comprises one or more of a methane sensor, a hydrogen sulfide sensor, a carbon monoxide sensor, a sulfur dioxide sensor, an oxygen sensor and an oil gas sensor;
the environment parameter acquisition module (2) comprises one or more of a wind speed sensor, a humidity sensor and a temperature sensor;
the video monitoring group (3) comprises a plurality of night vision cameras (31);
the communication device comprises one or more of GPRS/4G/NB-IOT modules.
3. The underground pipe network gas hazard source monitoring and early warning system according to claim 2, characterized in that: the front-end host (4) comprises a protective shell (41) and a machine body core (42) arranged in the protective shell (41), wherein an interaction port is formed in one side of an inner cavity of the protective shell (41), an adaptive cover plate (411) is connected to the interaction port in a closed mode, an anti-theft trigger mechanism (5) used for detecting opening and closing of the cover plate (411) and feeding back an anti-theft detection signal to the machine body core (42) is arranged in the protective shell (41), and the machine body core (42) is connected to the cloud platform;
the shooting range of the video monitoring group (3) covers the inner cavity opening side of the protective shell (41).
4. The underground pipe network gas hazard source monitoring and early warning system according to claim 3, wherein: the anti-theft triggering mechanism (5) comprises a light intensity sensor or an optical coupling circuit.
5. The underground pipe network gas hazard source monitoring and early warning system according to claim 3, wherein: the gas sampling device is characterized in that a gas sampling chamber (40) is formed in the protective shell (41), a gas collecting pump (71) and an exhaust pump (72) which are respectively connected to the machine body core (42) are arranged in the gas sampling chamber (40), a gas inlet port of the gas collecting pump (71) and an exhaust port of the exhaust pump (72) are communicated outside the protective shell (41), and a plurality of sensors of the pipe network information acquisition module (1) are arranged in the gas sampling chamber (40).
6. The underground pipe network gas hazard source monitoring and early warning system according to claim 5, wherein: an air outlet port of the air collecting pump (71) is communicated with an air drying filter (73), and the air drying filter (73) is connected to the machine body core (42).
7. The underground pipe network gas hazard source monitoring and early warning system according to claim 3, wherein: the front-end host (4) further comprises a display unit (43) connected to the machine body core (42), the display unit (43) is fixed to the protective shell (41), and the display surface of the display unit is exposed out of the protective shell (41);
the machine body core (42) is connected with a remote controller (6).
8. The underground pipe network gas hazard source monitoring and early warning system according to claim 2, characterized in that: the intelligent monitoring system is characterized in that information codes are arranged on each device of the front-end monitoring device and the front-end host (4) respectively, the information codes contain information of the devices and comprise one-dimensional codes and/or two-dimensional codes, the user terminal comprises a fixed terminal (81) and a mobile terminal (82) which are connected to the cloud platform respectively, and the mobile terminal (82) reads the information codes and sends the information codes to the cloud platform.
9. The underground pipe network gas hazard source monitoring and early warning system according to claim 1, characterized in that: the front end monitoring device further comprises a positioning module (10) arranged in an installation area of the pipe network information acquisition module (1), and the positioning module (10) is connected to the cloud platform.
10. The underground pipe network gas hazard source monitoring and early warning system according to claim 2, characterized in that: the cloud platform establishes a GIS system or is connected with GIS resources to form a cloud GIS, monitoring project nodes are established on a map of the cloud GIS, and information collected by the front-end monitoring device is fed back and stored in the monitoring project nodes.
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| CN202010974394.6A CN112145977A (en) | 2020-09-16 | 2020-09-16 | Underground pipe network gas dangerous source monitoring and early warning system |
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