CN114414526A - Mobile terminal for methane detection, methane detection system and methane detection method - Google Patents
Mobile terminal for methane detection, methane detection system and methane detection method Download PDFInfo
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 286
- 238000001514 detection method Methods 0.000 title claims abstract description 87
- 238000004891 communication Methods 0.000 claims abstract description 28
- 238000012545 processing Methods 0.000 claims abstract description 20
- 238000007689 inspection Methods 0.000 claims description 23
- 238000012423 maintenance Methods 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims 1
- 238000011835 investigation Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 20
- 239000003345 natural gas Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
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- 230000008569 process Effects 0.000 description 2
- 241000646858 Salix arbusculoides Species 0.000 description 1
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- 230000005540 biological transmission Effects 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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- 230000008439 repair process Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/39—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/14—Receivers specially adapted for specific applications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/40—Arrangements in telecontrol or telemetry systems using a wireless architecture
Abstract
The invention relates to a mobile terminal, a methane detection system and a methane detection method for methane detection, wherein the mobile terminal for methane detection comprises a methane detection module, a communication module, a positioning module, a display module and a processing module; the methane detection module is used for detecting the concentration of methane; the communication module is used for being in communication connection with the background server; the positioning module is used for acquiring positioning information; the display module is used for displaying methane concentration information, position information and running state information; the processing module is used for controlling the operation of the methane detection module, the communication module, the positioning module and the display module; the methane detection module, the communication module, the positioning module, the display module and the processing module are respectively connected. The methane detection device can detect methane in any detected point in time, can accurately and quickly determine the specific position of suspected leakage, saves the investigation time and saves the manpower. The methane leakage source can be found quickly, the detection efficiency is improved, and the labor intensity is reduced.
Description
Technical Field
The invention relates to the technical field of methane detection, in particular to a mobile terminal, a methane detection system and a methane detection method for methane detection.
Background
For leakage detection of gas transmission pipelines and open-air natural gas stations, point type combustible gas detectors are arranged in the past engineering, and whether natural gas leakage exists or not is indirectly judged by detecting the concentration of combustible gas. If through setting up point type combustible gas detector, come indirect judgement through the concentration that detects combustible gas on whether have natural gas to leak, because natural gas leaks the back, the diffusion of natural gas distributes the influence by wind-force: under the windless condition, natural gas is distributed like a willow leaf and mainly diffuses upwards, the existing point type combustible gas detector is installed in a closed space, the installation positions are dispersed, if the leakage point is arranged at the periphery of the point type combustible gas detector, the natural gas can be detected, and if the leakage point is not arranged at the periphery of the point type combustible gas detector, the natural gas cannot be detected. In an open space and under the condition of wind, natural gas is distributed in a willow-leaf shape and mainly diffuses obliquely upwards along the wind direction, and when the wind speed is not high and a point type combustible gas detector is arranged in the downwind direction of a leakage point, the natural gas can be detected; if the wind speed is high or the point type combustible gas detector is not in the downwind direction of the leakage point, the detection cannot be carried out. Therefore, in practical use, for an open space, the point type combustible gas detector has a low probability of detecting combustible gas when natural gas leaks.
The difficulty of the routine inspection work of inspection personnel lies in that gas leakage points are difficult to find, collect and report, the positions of the inspection personnel cannot be accurately positioned, and the gas standard exceeding alarm data cannot be reported in time, so that on-site 'first-hand' data is provided for rapid emergency repair, and data support is difficult to provide for routine inspection maintenance and management.
Therefore, the inventor provides a mobile terminal, a methane detection system and a methane detection method for methane detection.
Disclosure of Invention
(1) Technical problem to be solved
The embodiment of the invention provides a mobile terminal for methane detection, a methane detection system and a methane detection method, and solves the technical problems that a gas leakage point cannot be accurately detected and the position of an inspection worker cannot be positioned.
(2) Technical scheme
In order to solve the above problem, an embodiment of the present invention proposes a mobile terminal for methane detection, including:
the methane detection module is used for detecting the concentration of methane;
the communication module is used for being in communication connection with the background server;
the positioning module is used for acquiring positioning information;
the display module is used for displaying methane concentration information, position information and running state information;
the processing module is used for controlling the operation of the methane detection module, the communication module, the positioning module and the display module;
the methane detection module, the communication module, the positioning module, the display module and the processing module are respectively connected.
Optionally, the display module may be capable of displaying a first alarm signal if the methane concentration exceeds a standard.
Optionally, the mobile terminal for methane detection further includes a power module, and the power module is electrically connected to the processing module.
Optionally, the processing module is an MCU.
Optionally, the methane detection module is a methane laser detector.
Optionally, the positioning module is a Beidou positioning system or a GPS positioning system.
Optionally, the communication module is an NB-IoT communication device.
The embodiment of the invention also provides a methane detection system, which comprises a background server and the mobile terminal for methane detection, wherein the background server is used for processing analysis and control, and the communication module is in communication connection with the background server.
Optionally, the mobile terminal can detect whether the methane concentration of the detected point exceeds the standard, and if the methane concentration exceeds the standard, a first alarm signal is sent out;
the background server can judge whether the routing inspection route is consistent with a preset path or not;
if the two signals are in accordance, the inspection task is judged to be finished, and if the two signals are not in accordance, a second alarm signal is sent out.
Optionally, if the methane concentration exceeds the standard, the background server may send the methane concentration information and the location information to the mobile terminal.
The embodiment of the invention also provides a methane detection method, which comprises the following steps:
judging whether the methane concentration of the detected point exceeds the standard or not;
if the methane concentration exceeds the standard, a first alarm signal is sent out; if the methane concentration does not exceed the standard, acquiring the position information and the methane concentration information of the detected point;
and sending the position information and the methane concentration information to a background server.
(3) Advantageous effects
In summary, in the mobile terminal, the methane detection system, and the methane detection method for methane detection of the present embodiment, the patrol personnel holds the mobile terminal by hand, and can detect the methane concentration information of any detected point through the methane detection module, and when detecting that the methane at the detected point leaks, the mobile terminal can also locate the position information of the detected point through the location module in real time, and can transmit the methane concentration information and the position information to the background server in real time. The methane detection device can detect methane in any detected point in time, can accurately and quickly determine the specific position of suspected leakage, saves the investigation time and saves the manpower. The technical problems that data are difficult to derive, analyze and use in the methane detection process in the prior art are solved. The methane leakage source can be found quickly, the detection efficiency is improved, and the labor intensity is reduced. Whether the routing inspection route conforms to the preset route or not can be automatically analyzed, so that whether the missing inspection phenomenon exists or not can be determined, the routing inspection result is rapidly analyzed, and potential safety hazards which may exist are eliminated. The preset path can be set by self according to the number and the positions of detected points.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a mobile terminal for methane detection according to an embodiment of the present invention.
FIG. 2 is a flow chart of a method for methane detection in an embodiment of the present invention;
FIG. 3 is a flowchart of step S4 according to an embodiment of the present invention.
In the figure:
101-a mobile terminal; 102-a background server; 11-a display module; 12-a methane detection module; 13-a positioning module; 14-a communication module; 15-a processing module; 16-power supply module.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the invention and are not intended to limit the scope of the invention, i.e., the invention is not limited to the embodiments described, but covers any modifications, alterations, and improvements in the parts, components, and connections without departing from the spirit of the invention.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1, a mobile terminal 101 for methane detection includes:
a methane detection module 12 for detecting the methane concentration;
the communication module 14 is used for communicating with the background server 102;
a positioning module 13, configured to obtain positioning information;
a display module 11 for displaying;
the processing module 15 is used for controlling the operation of the methane detection module 12, the communication module 14, the positioning module 13 and the display module 11;
the methane detection module 12, the communication module 14, the positioning module 13, the display module 11 and the processing module 15 are respectively connected.
The mobile terminal 01 for methane detection in the embodiment is a handheld mobile terminal for patrol personnel, can detect any detected point methane concentration information through the methane detection module 12, can also locate the position information of the detected point in real time through the positioning module 13 when detecting that the detected point methane leaks, and can transmit the methane concentration information and the position information to the background server 102 in real time. The methane detection device can detect methane in any detected point in time, can accurately and quickly determine the specific position of suspected leakage, saves the investigation time and saves the manpower.
The technical problems that data are difficult to derive, analyze and use in the methane detection process in the prior art are solved. The methane leakage source can be found quickly, the detection efficiency is improved, and the labor intensity is reduced. The display module 11 is a display screen, and is configured to display methane concentration information, location information, operation state information of the mobile terminal 101, and the like.
In one embodiment, the mobile terminal 101 for methane detection further includes a power module 16, and the power module 16 is electrically connected to the processing module 15. After the power module 16 supplies power to the processing module 1, the processing module 15 may transmit electricity to the methane detection module 12, the communication module 14, the positioning module 13, and the display module 11. Specifically, the power module 16 is a battery or a commercial power.
In an embodiment, the processing module 15 is an MCU, and may also be a CPU or a single chip microcomputer.
In one embodiment, the methane detection module 12 is a methane laser detector. The methane laser detector detects the concentration of methane gas by using a harmonic detection method. The harmonic detection method is one of the most effective methods for extracting small signals from strong interference noise and improving detection sensitivity, and has the detection principle that when the wavelength emitted by a laser is near a certain methane gas absorption peak, the wavelength emitted by the laser is controlled at the corresponding methane gas absorption peak through temperature control adjustment and current modulation, then a modulation signal obtained by superposing a sine wave and a triangular wave is added to modulate the laser wavelength, and a second harmonic signal caused by the change of the methane gas concentration is detected through a phase-locked amplification technology, so that the purpose of detecting the methane gas concentration is achieved.
In an embodiment, the positioning module 13 is a beidou positioning system or a GPS positioning system.
In one embodiment, the communication module 14 is an NB-IoT communication device.
The embodiment of the present invention further provides a methane detection system, which includes a background server 102 and the above-mentioned mobile terminal 101 for methane detection, wherein the background server 102 is used for processing analysis and control, and the communication module 14 is in communication connection with the background server 102.
The methane detection system of this embodiment has the advantage of above-mentioned mobile terminal, and in addition, mobile terminal 101 and backend server 102 can also coordinated control, realize that backstage staff and patrol and examine personnel's mutual maintenance, can improve maintenance efficiency and maintenance precision.
In an embodiment, the mobile terminal 101 is capable of detecting whether the methane concentration of a detected point exceeds a standard, and if the methane concentration exceeds the standard, sending a first alarm signal;
the background server 102 can judge whether the routing inspection route is consistent with a preset path;
if the two signals are in accordance, the inspection task is judged to be finished, and if the two signals are not in accordance, a second alarm signal is sent out. The staff and the inspection personnel can be prompted in time.
In an embodiment, if the methane concentration exceeds the standard, the background server 102 can send methane concentration information and location information to the mobile terminal 101. Can make the personnel of patrolling and examining find the methane leakage point fast, improve maintenance efficiency.
The embodiment of the invention also provides a methane detection method, which comprises the following steps:
s1, judging whether the methane concentration of the detected point exceeds the standard or not;
s2, if the methane concentration exceeds the standard, sending a first alarm signal; if the methane concentration does not exceed the standard, acquiring the position information and the methane concentration information of the detected point;
s3, sending the position information and the methane concentration information to a background server 102;
s4, judging whether the routing inspection route is consistent with the preset route;
and S5, if the data are matched, judging that the polling task is ended, and if the data are not matched, sending a second alarm signal.
The methane detection method of this embodiment may use the mobile terminal 01 and the backend server 102 for methane detection to complete detection.
The methane detection method has the advantages that whether the routing inspection route conforms to the preset path or not can be automatically analyzed, so that whether the missing inspection phenomenon exists or not can be determined, the routing inspection result is rapidly analyzed, and potential safety hazards which may exist are eliminated. The preset path can be set by self according to the number and the positions of detected points.
In one embodiment, the determining whether the routing inspection route matches the preset route includes:
s41, controlling the backend server 102 to determine whether the location information belongs to a preset path,
s42, if the routing inspection route belongs to the preset route, judging that the routing inspection route is consistent with the preset route; if not, the inspection route is judged not to be in accordance with the preset route. Whether the patrol personnel are all checked by the detected points can be intelligently prompted, and the phenomena of missing checking or repeated checking and the like are avoided.
It should be clear that the embodiments in this specification are described in a progressive manner, and the same or similar parts in the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. The present invention is not limited to the specific steps and structures described above and shown in the drawings. Also, a detailed description of known methane detection method techniques is omitted herein for the sake of brevity.
The above description is only an example of the present application and is not limited to the present application. Various modifications and alterations to this application will become apparent to those skilled in the art without departing from the scope of this invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A mobile terminal for methane detection, comprising:
the methane detection module is used for detecting the concentration of methane;
the positioning module is used for positioning the mobile terminal to obtain positioning information;
the display module is used for displaying methane concentration information, position information and running state information of the mobile terminal;
the communication module is in communication connection with the background server and used for sending methane concentration information and position information to the background server;
the processing module is used for controlling the operation of the methane detection module, the communication module, the positioning module and the display module;
the methane detection module, the communication module, the positioning module, the display module and the processing module are respectively connected.
2. The mobile terminal for methane detection according to claim 1, wherein said display module is capable of displaying a first alarm signal if said methane concentration exceeds a standard.
3. The mobile terminal for methane detection according to claim 1, further comprising a power module, wherein the power module is electrically connected to the processing module.
4. The mobile terminal for methane detection according to claim 1, wherein said processing module is an MCU.
5. The mobile terminal for methane detection according to claim 1, wherein the methane detection module is a methane laser detector.
6. The mobile terminal for methane detection according to claim 1, wherein the positioning module is a Beidou positioning system or a GPS positioning system.
7. The mobile terminal for methane detection according to claim 1, wherein the communication module is an NB-IoT communication device.
8. A methane detection system comprising a background server and a mobile terminal for methane detection according to any one of claims 1 to 7, wherein:
the mobile terminal is used for determining the methane concentration and sending the methane concentration information, the positioning information of the mobile terminal and the running state information to the background server;
and the background server is used for monitoring according to the information reported by the mobile terminal.
9. The methane detection system according to claim 8, wherein the backend server is specifically configured to:
judging whether the routing inspection route corresponding to the mobile terminal is consistent with a preset route or not according to the positioning information;
if the two signals are in accordance, the inspection task is judged to be finished, and if the two signals are not in accordance, a second alarm signal is sent out.
10. The methane detection system according to claim 9,
and the background server is also used for sending alarm information to the mobile terminal of the maintenance personnel closest to the position information according to the methane concentration information and the position information if the methane concentration exceeds the standard.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111672367.4A CN114414526A (en) | 2021-12-31 | 2021-12-31 | Mobile terminal for methane detection, methane detection system and methane detection method |
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| CN202111672367.4A CN114414526A (en) | 2021-12-31 | 2021-12-31 | Mobile terminal for methane detection, methane detection system and methane detection method |
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2021
- 2021-12-31 CN CN202111672367.4A patent/CN114414526A/en active Pending
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