CN107782375A - Remote terminal control system - Google Patents
Remote terminal control system Download PDFInfo
- Publication number
- CN107782375A CN107782375A CN201610753648.5A CN201610753648A CN107782375A CN 107782375 A CN107782375 A CN 107782375A CN 201610753648 A CN201610753648 A CN 201610753648A CN 107782375 A CN107782375 A CN 107782375A
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- China
- Prior art keywords
- control system
- data
- measurement data
- remote terminal
- terminal control
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses remote terminal control system, including safety zone and explosion-proof area, concentrator is provided with safety zone, wireless collection front end and the flowmeter of multiple interconnections are provided with explosion-proof area；Concentrator, for collecting the measurement data of wireless collection front end outside safe distance, and measurement data uploads teletransmission platform by uploading data module, or handles data transfer to metering system, control system of standing in situ by local port；Wireless collection front end, for gathering the measurement data of flowmeter and by being wirelessly transmitted to concentrator；Flowmeter, for detecting the gas flow in natural gas line.When measurement data transmits on the spot, by interfaces such as RS485 or RJ45, then can realize measurement data it is stable be accurately sent to metering system, control system of standing.
Description
Technical field
The present invention relates to natural gas remote collection field, in particular to remote terminal control system.
Background technology
The natural gas resource in China is not very abundant at present, and Area distribution reserves are very uneven, recently as
The fast development of global economy, and the enhancing of earth environment protective awareness, the demand day as most clean energy resource natural gas
Benefit increase, gas extraction work is further urgent, and some hyposmosis area in China, gas extraction works and such as fire
As the bitter edible plant is carried out.Need the quantity of the highdensity natural gas well higher to obtain if natural gas extraction is carried out in these areas
Gas production, so the tens of thousands of mouthfuls of natural gas wells are distributed in an administrative areas at the county level, because well head quantity is very more, and can
Desert and Gobi can be distributed in, inspection is very inconvenient, it is necessary to digital networked management is carried out to gas field, matched somebody with somebody it then becomes necessary to have
The natural gas wellhead data acquisition of set and distance transmission system.Natural gas wellhead data collecting system of the prior art, remotely
Terminal Control Element RTU（Remote Terminal Unit）Be by analog input channel gather well head oil pressure, casing pressure with
And gas discharge data in gas external transport pipeline, due to being limited by analog input channel, for four clumps of well groups
Above equipment can not data acquisition, moreover, natural gas wellhead data collecting system of the prior art also exist power consumption it is big,
The defects of maintenance cost is high after poor safety performance, failure and deficiency.
The content of the invention
It is an object of the invention to provide remote terminal control system so that the flow remote collection realization side of natural gas
Just, intelligence degree is high, low in energy consumption using simple operation, and property safe and reliable to operation is high, and cost of implementation is low, and using effect is good, just
In promoting the use of.
The purpose of the present invention is achieved through the following technical solutions：
Remote terminal control system, including safety zone and explosion-proof area, are provided with concentrator, in anti-explosion area in safety zone
Wireless collection front end and the flowmeter of multiple interconnections are provided with domain；Concentrator, it is wireless for being collected outside safe distance
The measurement data of front end is gathered, and measurement data uploads teletransmission platform by uploading data module, or in situ by local side
Mouth handles data transfer to metering system, control system of standing；Wireless collection front end, for gathering the measurement data of flowmeter
And by being wirelessly transmitted to concentrator；Flowmeter, for detecting the gas flow in natural gas line.
The wireless collection front end includes following：
Communication module, docked with intelligent flow meter, for data on flows to be transmitted to MCU；
MCU, for regulating and controlling all modules, and the data message that communication module is transmitted is received, and the data message is carried out
Integrate；
LORA wireless modules, a wide range of transmission for the data on flows after integration；
Power supply, for providing stable operating voltage；
DC/DC converters, for the output voltage of conversion electric power to match the supply voltage of intelligent flow meter；
Unified expansion interface, unified expansion interface, for extending MCU and external module connection approach, including RJ45 interfaces, increasing
Strong I/O interface and AI interfaces, and AI interfaces are connected with combustible gas probe.
The model PIC24F16KA02 of the MCU.
The power supply is lithium battery.
The power supply is ferric phosphate lithium cell or lithium argon battery.
The present invention compared with prior art, has the following advantages and advantages：
1st, installation site of the invention is very short apart from intelligent meter distance, the sense of the connecting cable length introducing in the section of this length
Pulse very little is answered, is not enough to constitute a threat to intelligent flow meter；
2nd, the present invention uses battery powered, it is not necessary to which external electrical network, security performance is high, directly avoids thunderbolt and is introduced by power network
Pulse；
3rd, compact of the invention is light, can be directly fixed together using bolt and intelligent meter, can also use U-shaped card
Button is fixed on outside pipeline.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application
Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is the schematic diagram of the present invention；
Fig. 2 is the structured flowchart of wireless collection front end.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1
As depicted in figs. 1 and 2, the present embodiment remote terminal control system, including safety zone and explosion-proof area, in safety zone
Concentrator is inside provided with, wireless collection front end and the flowmeter of multiple interconnections are provided with explosion-proof area；Concentrator, use
In the measurement data that wireless collection front end is collected outside safe distance, and measurement data is put down by uploading data module upload teletransmission
Platform, or handle data transfer to metering system, control system of standing in situ by local port；Wireless collection front end, use
In the measurement data for gathering flowmeter and by being wirelessly transmitted to concentrator；Flowmeter, for detecting the gas in natural gas line
Body flow.
The wireless collection front end includes following：
Communication module, docked with intelligent flow meter, for data on flows to be transmitted to MCU；
MCU, for regulating and controlling all modules, and the data message that communication module is transmitted is received, and the data message is carried out
Integrate；
LORA wireless modules, a wide range of transmission for the data on flows after integration；
Power supply, for providing stable operating voltage；
DC/DC converters, for the output voltage of conversion electric power to match the supply voltage of intelligent flow meter；
Unified expansion interface, unified expansion interface, for extending MCU and external module connection approach, including RJ45 interfaces, increasing
Strong I/O interface and AI interfaces, and AI interfaces are connected with combustible gas probe.
It is responsible for the survey of collection intelligent flow meter as a part for being directly connected to intelligent flow meter in wireless collection front end
Data are measured, and send it to concentrator, and concentrator can collect the measurement data of wireless collection front end outside safe distance,
And measurement data uploads teletransmission platform by uploading data module, or data transfer is extremely counted in situ by local port
Amount system, control system of standing processing.And in measurement data teletransmission, it is one typical to upload data module and use GPSR, GPSR
Location-based Routing Protocol, using GPSR agreements, network node both knows about self geographical position and by unified addressing, each node
Using greedy algorithm as far as possible along straight line forward data, the agreement avoid in node establish, safeguard, storage routing table, only according to
Direct neighbors is relied to be routed, an almost stateless agreement；And use close to the road of most short Euclidean distance
By data transmission delay is small；And can guarantee that as long as network connectivty is not destroyed, it is certain it can be found that up to route, improve
The promptness and accuracy of measurement data transmission.And when measurement data transmits on the spot, by interfaces such as RS485 or RJ45,
Can then realize measurement data it is stable be accurately sent to metering system, control system of standing.
When carrying out gas discharge data acquisition, using single battery powered, the external electrical network of abandoning tradition is powered
Mode, to prevent thunderbolt from introducing pulse by external electrical network；And for intelligent flow meter, by DC/DC converters so that battery
Be delivered to intelligent flow meter magnitude of voltage rise, to ensure the normal work of intelligent flow meter, intelligent flow meter is in pipeline
Gas discharge measure, and the data of measurement are sent to MCU by communication module, pass through MCU integration, the measurement
Data are sent to terminal by LORA wireless modules, that is, realize the remote collection to gas discharge.And unified expansion interface, it is
It can ensure that gather front end can adapt to new requirement and be pre-designed afterwards, improve the extended capability of collection front end, its
In, unified expansion interface includes RJ45 interfaces, enhancing I/O interface and spare interface.
Wherein, in actual mechanical process, collection front end is placed in the housing of flame proof aluminium casting, and the back of the body can be used during installation
Portion's installation, screens are fixed near site intelligent flowmeter.Also, the installation housing of collection front end uses tubular structure, and
Diameter is quick and easy for installation in 9 ~ 10 ㎝ scopes, small volume.And the combustible gas probe connected by AI interfaces can be to pipeline
Hazardous gas spillage detection is nearby carried out, when detecting fuel gas, detector can send alarm and warn, to facilitate natural gas
The staff of well makes safe precaution measure in advance, avoids producing great security incident.
Preferably, the power supply uses ferric phosphate lithium cell or lithium argon battery, 2 can be placed in the housing of tubular
The battery of the AA volume sizes of block 2/3, to provide about 3000mAH power supply capacity.If the Cangnan larger to power consumption
Table carries out interruptedly supplying power, and the working time is about 3 years, it is contemplated that the self discharge of battery（Battery can when not working slowly voluntarily
Consume self electric quantity）, it is ensured that the working time of 2 years.
Above-described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., all should include
Within protection scope of the present invention.
Claims (5)
1. remote terminal control system, it is characterised in that：Including safety zone and explosion-proof area, collection is provided with safety zone
Middle device, wireless collection front end and the flowmeter of multiple interconnections are provided with explosion-proof area；Concentrator, for safety away from
From the measurement data of outer collection wireless collection front end, and measurement data uploads teletransmission platform by uploading data module, or just
Ground is handled data transfer to metering system, control system of standing by local port；Wireless collection front end, for gathering flow
The measurement data of meter and by being wirelessly transmitted to concentrator；Flowmeter, for detecting the gas flow in natural gas line.
2. remote terminal control system according to claim 1, it is characterised in that the wireless collection front end includes：
Communication module, docked with intelligent flow meter, for data on flows to be transmitted to MCU；
MCU, for regulating and controlling all modules, and the data message that communication module is transmitted is received, and the data message is carried out
Integrate；
LORA wireless modules, a wide range of transmission for the data on flows after integration；
Power supply, for providing stable operating voltage；
DC/DC converters, for the output voltage of conversion electric power to match the supply voltage of intelligent flow meter；
Unified expansion interface, for extending MCU and external module connection approach, including RJ45 interfaces, enhancing I/O interface and
AI interfaces, and AI interfaces are connected with combustible gas probe.
3. remote terminal control system according to claim 1, it is characterised in that：The model of the MCU
PIC24F16KA02。
4. remote terminal control system according to claim 1, it is characterised in that：The power supply is lithium battery.
5. according to the remote terminal control system described in claim 2 or 4, it is characterised in that：The power supply is LiFePO4
Battery or lithium argon battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610753648.5A CN107782375A (en) | 2016-08-30 | 2016-08-30 | Remote terminal control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610753648.5A CN107782375A (en) | 2016-08-30 | 2016-08-30 | Remote terminal control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107782375A true CN107782375A (en) | 2018-03-09 |
Family
ID=61441177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610753648.5A Withdrawn CN107782375A (en) | 2016-08-30 | 2016-08-30 | Remote terminal control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107782375A (en) |
-
2016
- 2016-08-30 CN CN201610753648.5A patent/CN107782375A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180309 |