CN204029143U - A kind of remote data acquisition terminal of gas meter reading system - Google Patents
A kind of remote data acquisition terminal of gas meter reading system Download PDFInfo
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- CN204029143U CN204029143U CN201420495034.8U CN201420495034U CN204029143U CN 204029143 U CN204029143 U CN 204029143U CN 201420495034 U CN201420495034 U CN 201420495034U CN 204029143 U CN204029143 U CN 204029143U
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- 230000001012 protector Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 6
- 239000002360 explosive Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
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- 210000000981 epithelium Anatomy 0.000 description 1
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Abstract
The utility model discloses a kind of remote data acquisition terminal of gas meter reading system; comprise for the GPRS communication module of data transmission with for the acquisition module of collection site pressure, temperature; and for the protection of the safety barrier module of flowmeter communication security; between above-mentioned each module, adopt 485 hand in hand communication connect, and on acquisition module, be also connected with door and open detection module and magnetic interference detection module.The remote data acquisition terminal of gas meter reading system of the present utility model is simple in structure, high safety, image data is packet loss not accurately, communication robust antijamming capability is strong, after system power failure, do not affect data acquisition, there is strong magnetic interference and burn out detection warning function, once find that user steals gas problem and solves in time, avoid gas company and use gas enterprises' loss.
Description
Technical field
The utility model belongs to the remote data acquisition technical field of gas flow metering, is specifically related to a kind of remote data acquisition terminal of gas meter reading system.
Background technology
In order to respond, national energy-saving reduces discharging commercial business and industrial enterprises, environmental protection is called now, and more and more enterprises adopt clean environment firendly rock gas as producing the energy.Along with user increases, it is important that gas company's measurement also seems all the more.Because industrial enterprise many places are in suburban zone, industry and commerce distributes and relatively disperses, and gives in management and brings inconvenience.Patrol and examine also and do not gear to actual circumstances every day to field instrument (flowmeter, pressure, temperature, valve etc.), and instrument fault can not be found in time and process.
Occur that in the market some GPRS remote data acquisition terminals also exist following deficiency: the strong magnetic machine of field by using disturbs flowmeter normally to work, artificially steal gas, or cut off connection, make data collection station cannot detect in time or can't detect data; GPRS acquisition terminal communication modes only has RS232 or RS485, if flowmeter or field instrument are other interfaces, just can not use; The maintenance of breaking down need to be changed whole circuit, and cost compare is high.
Utility model content
The purpose of this utility model is to provide a kind of remote data acquisition terminal of gas meter reading system, and monitoring site gas situation, avoids gas company and use gas enterprises' loss at any time, saves the man power and material of gas company.
In order to realize above object; the technical scheme that the utility model adopts is: a kind of remote data acquisition terminal of gas meter reading system; comprise for the GPRS communication module of data transmission with for the acquisition module of collection site pressure, temperature; and for the protection of the safety barrier module of flowmeter communication security; between above-mentioned each module, adopt 485 hand in hand communication connect, and on acquisition module, be also connected with door and open detection module and magnetic interference detection module.
Described acquisition module for being electrically connected to, is also connected with accumulator with Switching Power Supply on the feed circuit of described Switching Power Supply.
Described Switching Power Supply is for being electrically connected to city by Surge Protector.
This terminal is provided with flameproof enclosure outward.
The image data of described flowmeter is exported in intrinsic safety mode by safety barrier.
The remote data acquisition terminal of gas meter reading system of the present utility model is simple in structure, high safety, image data is packet loss not accurately, communication robust antijamming capability is strong, after system power failure, do not affect data acquisition, there is strong magnetic interference and burn out detection warning function, once find that user steals gas problem and solves in time, avoid gas company and use gas enterprises' loss.
This terminal adopts module assembled, and plant maintenance is convenient; The output of employing intrinsic safety, can be operated in explosive gas atmosphere.
Accompanying drawing explanation
Fig. 1 is the inner structure schematic diagram of remote data acquisition terminal;
Fig. 2 is the schematic appearance of remote data acquisition terminal;
Fig. 3 is that magnetic interference detects key wiring diagram;
Fig. 4 is that door is opened detection key wiring diagram.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described further.
Be illustrated in figure 1 the inside schematic diagram of the remote data acquisition terminal embodiment of the utility model gas meter reading system; as seen from the figure; this terminal comprises for the GPRS communication module of data transmission with for the acquisition module of collection site pressure, temperature; and for the protection of the safety barrier module of flowmeter communication security; between above-mentioned each module, adopt 485 hand in hand communication connect, and on acquisition module, be also connected with door and open detection module and magnetic interference detection module.
As Fig. 1, this terminal module adopts mains-supplied, and civil power is after Switching Power Supply step-down, give circuit supply and charge in batteries, while having electricity, Switching Power Supply to circuit supply and charge a battery, is powered to acquisition module by battery pack during power failure, does not affect data acquisition; And this Switching Power Supply is protected the overcurrent, overvoltage, the under-voltage problem that occur in work in time by Surge Protector and air switch.
This terminal device adopts flameproof enclosure that each module is closed, flameproof enclosure has resistance to quick-fried property and the not effect of propagation of explosion, meet national GB3836.4 Electric Equipment in Explosive Gas Atmosphere standard, can be installed on 1st district and 2nd district of damp hazardous area, meet the requirement of shell IP65 degree of protection; The outside flame proof joint that adopts is connected with field instrument (Pressure/Temperature transmitter).
The utility model adopts safety barrier to flowmeter communication power supply, and the image data of flowmeter is exported in intrinsic safety mode, and the curtage of non-intrinsically safe circuit is limited in to certain safe range, prevents that the dangerous energy of non-intrinsically safe circuit from passing in intrinsically safe circuit.According to the interface modes of flowmeter or field instrument, configuration different model safety barrier, such as sky letter Roots table, Crow nurse epithelium table are four-wire system RS485 interfaces, safety barrier is just selected LBGS8093-EX series or 2108D security of system grid, and there has been Anti-surging function the safety barrier inside of this specification.What Elst flowmeter adopted is six lines RS485 interface processed, and safety barrier is just selected GS8193-EX series safety barrier, and signal Surge Protector is installed separately simultaneously, and its surface structure as shown in Figure 2.
This terminal comprises GPRS data transmission module, this GPRS module is connected with acquisition module with safety barrier respectively by 485 buses, described safety barrier is connected with the flowmeter of corresponding interface according to the interface of different flow meter (RS485, RS232, RS422), thereby collect data to GPRS module, that is to say that packet that GPRS communication module transmits is containing the image data of flow meter data and acquisition module.Adopt GPRS wireless network that image data is uploaded to server, without wiring, and transmission range is unrestricted, and interface flexible, can adopt RS485, RS422, RS232,4～20mA interface.
In addition, all modules of the present embodiment (for example safety barrier and GPRS communication module) power supply is all to be provided by Switching Power Supply, after power failure, by accumulator, is provided.
Acquisition module is opened detection module, magnetic interference detection module and on-the-spot pressure and temp transmitter meter by digital quantity analog quantity IO mouth with door and is connected.Magnetic disturbance detection function is when having strong magnetic near sensor, the magnetic alerting signal that system can detect.Burn out detection function is that system can detect broken string when having artificial deliberately destruction sensor line.Be illustrated in figure 3 magnetic interference and detect key wiring diagram, the wiring 1,2,3,4 of magnetic interference detection module connects respectively the digital quantity IO mouth of acquisition module, and 1,4 is magnetic interference detection line, and 1,4 disconnect under normal circumstances, when there being strong magnetic interference, are 1,4 closures.2,3 is burn out detection, under normal circumstances 2,3 closures; When people is for cutting short after connection, 2,3 disconnect.If equipment people for opening, destroyed, the strong magnetic interference flowmeter of field instrument connection normally works, can by these information, report in time and keep in repair by acquisition module.
Be illustrated in figure 4 door and open detection key wiring diagram, door is opened and is detected 1,2 and connect respectively acquisition module digital quantity IO mouth, and under normal circumstances the 1, the 2nd, closed, if be stamped people on equipment, open, 1,2 disconnect, and acquisition module is opened information reporting by door.
Above embodiment is only for helping to understand core concept of the present utility model; can not limit the utility model with this; for those skilled in the art; every foundation thought of the present utility model; the utility model is modified or is equal to replacement; any change of doing in specific embodiments and applications, within all should being included in protection domain of the present utility model.
Claims (5)
1. the remote data acquisition terminal of a gas meter reading system; it is characterized in that: comprise for the GPRS communication module of data transmission with for the acquisition module of collection site pressure, temperature; and for the protection of the safety barrier module of flowmeter communication security; between above-mentioned each module, adopt 485 hand in hand communication connect, and on acquisition module, be also connected with door and open detection module and magnetic interference detection module.
2. the remote data acquisition terminal of gas meter reading system according to claim 1, is characterized in that: described acquisition module for being electrically connected to, is also connected with accumulator with Switching Power Supply on the feed circuit of described Switching Power Supply.
3. the remote data acquisition terminal of gas meter reading system according to claim 2, is characterized in that: described Switching Power Supply is for being electrically connected to city by Surge Protector.
4. the remote data acquisition terminal of gas meter reading system according to claim 1, is characterized in that: this terminal is provided with flameproof enclosure outward.
5. the remote data acquisition terminal of gas meter reading system according to claim 1, is characterized in that: the image data of described flowmeter is exported in intrinsic safety mode by safety barrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420495034.8U CN204029143U (en) | 2014-08-29 | 2014-08-29 | A kind of remote data acquisition terminal of gas meter reading system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420495034.8U CN204029143U (en) | 2014-08-29 | 2014-08-29 | A kind of remote data acquisition terminal of gas meter reading system |
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| Publication Number | Publication Date |
|---|---|
| CN204029143U true CN204029143U (en) | 2014-12-17 |
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| CN201420495034.8U Expired - Lifetime CN204029143U (en) | 2014-08-29 | 2014-08-29 | A kind of remote data acquisition terminal of gas meter reading system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957322A (en) * | 2016-05-24 | 2016-09-21 | 河南师范大学 | Remote gas flowmeter system and control method thereof |
| CN108302327A (en) * | 2018-02-07 | 2018-07-20 | 北京东方通捷燃气有限责任公司 | A kind of gas pipeline remote monitoring system |
| CN108319165A (en) * | 2018-01-04 | 2018-07-24 | 中石化上海工程有限公司 | A kind of data bussing devices and on-line detecting system |
| CN109559485A (en) * | 2018-11-13 | 2019-04-02 | 禹州市天源生物科技有限公司 | A kind of Roots's measuring instrument warning device |
-
2014
- 2014-08-29 CN CN201420495034.8U patent/CN204029143U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957322A (en) * | 2016-05-24 | 2016-09-21 | 河南师范大学 | Remote gas flowmeter system and control method thereof |
| CN108319165A (en) * | 2018-01-04 | 2018-07-24 | 中石化上海工程有限公司 | A kind of data bussing devices and on-line detecting system |
| CN108302327A (en) * | 2018-02-07 | 2018-07-20 | 北京东方通捷燃气有限责任公司 | A kind of gas pipeline remote monitoring system |
| CN109559485A (en) * | 2018-11-13 | 2019-04-02 | 禹州市天源生物科技有限公司 | A kind of Roots's measuring instrument warning device |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20141217 |
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| CX01 | Expiry of patent term |