CN217741828U - Centralized transmission system for flow information of distributed natural gas flowmeter - Google Patents
Centralized transmission system for flow information of distributed natural gas flowmeter Download PDFInfo
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- CN217741828U CN217741828U CN202121452214.4U CN202121452214U CN217741828U CN 217741828 U CN217741828 U CN 217741828U CN 202121452214 U CN202121452214 U CN 202121452214U CN 217741828 U CN217741828 U CN 217741828U
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Abstract
The utility model discloses a centralized transmission system for flow information of a distributed natural gas flowmeter, which belongs to the field of natural gas flowmeter monitoring systems and comprises a natural gas flowmeter, a server and an uploading device DTU for wirelessly transmitting flow signals of the natural gas flowmeter through a mobile flow card; the flowmeter is provided with data transmission modules, each data transmission module can be numbered independently, all the data transmission modules transmit signals to the same data collection port through information communication respectively, the data are transmitted to a server through an uploading device DTU at the collection port to transmit flowmeter flow signals, and the transmission efficiency of the data transmission modules and the transmission efficiency of the data collection port are both more than 400M. The utility model concentrates a plurality of flowmeter signals into one port, and the signals are packed and transmitted to the server, thereby reducing the mobile equipment and the cost; the arrangement of a data line is omitted in the radio wave transmission, so that money is saved, and a workshop is clean and tidy; the server easily faces one port, and the working efficiency is greatly improved.
Description
Technical Field
The utility model relates to a natural gas flow meter monitored control system field, specificly relate to a concentrated transmission system about distributing type natural gas flow meter flow information.
Background
The gas flow meters are used for measuring the gas flow rate of the gas company, and the measurement signals are transmitted to a server of a total gas flow scheduling room of the gas company in time and in a long distance so as to facilitate the scheduling analysis of the total gas amount in the whole city.
The structure of the traditional flow meter measuring and transmitting system is shown in figure 1, uploading equipment DTUs corresponding to the flow meters one by one are arranged, and the uploading equipment DTUs are in signal connection with a server. There are the following problems:
1. because the gas flow meters are not regularly distributed, buildings and production equipment in and among workshops are more, strong electromagnetic interference is large, and the reliability of wiring or data transmission is difficult to realize by means of network cable transmission.
2. The mobile equipment required to allocate a mobile flow card to each flow meter is expensive, and especially small flow meters are less cost effective.
3. Each point is directly connected with the server, occupies a limited port number of the server, increases the burden of the server and reduces the efficiency of the server. Especially corporate servers with too many flow meters are hardly realizable.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved
The to-be-solved technical problem of the utility model is to provide a concentrate transmission system about distributed natural gas flowmeter flow information with anti-interference, signal collect transmission function to solve the problem among the prior art.
2. Technical scheme
In order to solve the above problem, the utility model adopts the following technical scheme:
a centralized transmission system for flow information of distributed natural gas flowmeters comprises natural gas flowmeters distributed in a workshop, a server arranged in a total gas flow dispatching room of a gas company and an uploading device DTU used for wirelessly transmitting flow signals of the flowmeters to the server through a mobile flow card; each flowmeter is provided with a data transmission module, each data transmission module can be numbered independently, all the data transmission modules transmit signals to the same data collection port through information communication respectively, the data collection port transmits flow meter flow signals to a server through an uploading device DTU, and the transmission efficiency of the data transmission modules and the transmission efficiency of the data collection port are both more than 400M.
Further, the data transmission mode of all the flowmeters is 485 serial transmission mode, and the transmission baud rate of all the flowmeters is 9600.
Preferably, the data transmission module and the data collection port both adopt a model A810-L400 wireless data transmission station. The wireless data transmission radio station of A810-L400 model has the wireless transmission efficiency of 400MHz, good reliability and low price. The data collection port and the data transmission module form a one-to-many networking mode, and the flow signals of a plurality of flowmeters can be collected conveniently.
Further, the transmission mode of the uploading device DTU transmitting the signal to the server is set to a packet transmission mode. The DTU can pack a large amount of data transmitted from the data collection port and then transmit the data to the server, and therefore the efficiency of data transmission is accelerated.
3. Advantageous effects
The utility model discloses in all have data transmission module on every flowmeter, and every data transmission module all can independently number, all data transmission module respectively communication connection have same data to collect the port, the data collects the port and transmits flow meter flow signal to the server through an uploading equipment DTU, the server only need with an uploading equipment DTU be connected can, the server reduces burden in a large number, efficiency can improve greatly; and each flow meter does not need to be provided with a mobile uploading device, and a plurality of gas flow meters only need one mobile uploading device, so that the equipment cost is greatly reduced; the transmission efficiency of the data transmission module and the transmission efficiency of the data collection port are both more than 400M, the interference frequency of a workshop can be avoided, the reliability of data transmission can be guaranteed, the operation of arranging a data line is omitted in the transmission mode of radio waves, money is saved, and the cleanness and tidiness of the workshop are kept.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic diagram of a conventional flowmeter measurement transmission system architecture;
fig. 2 is a schematic view of the structure of a flow meter measuring and conveying system according to embodiment 1 of the present invention;
fig. 3 is a schematic diagram of a structure of a flow meter measurement transmission system according to embodiment 2 of the present invention.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Example 1
A centralized transmission system for flow information of distributed natural gas flow meters is shown in fig. 2 and comprises natural gas flow meters distributed in a workshop, a server arranged in a total gas flow dispatching room of a gas company, and an uploading device DTU used for wirelessly transmitting flow signals of the flow meters to the server through a mobile flow card; each flowmeter is provided with a data transmission module, each data transmission module can be independently numbered (namely, address numbers can be set to be 1, 2, 3, 4, etc.), all the data transmission modules transmit signals to the same data collection port through information communication respectively, the data collection port transmits flow meter flow signals to a server through an uploading device DTU, and the transmission efficiency of the data transmission modules and the transmission efficiency of the data collection port are both more than 400M.
Example 2
The present embodiment is different from embodiment 1 in that:
in this embodiment, all the data transmission modes of the flow meters are 485 serial transmission modes, and all the transmission baud rates of the flow meters are 9600.
In this embodiment, as shown in fig. 3 (total a810-L400 represents a data aggregation port, and sub a810-L400 represents a data transmission module), the data transmission module and the data aggregation port both use a radio data transmission station of a model a 810-L400. The wireless data transmission radio station of A810-L400 model has the wireless transmission efficiency of 400MHz, good reliability and low price. The data collection port and the data transmission module form a one-to-many networking mode, so that the flow signals of a plurality of flowmeters can be collected conveniently.
In this embodiment, the transmission mode of the uploading device DTU transmitting the signal to the server is set to be the packet transmission mode. The DTU can pack a large amount of data transmitted from the data collection port and then transmit the data to the server, and therefore the efficiency of data transmission is accelerated.
In this embodiment, the uploading device DTU adopts a mobile network translator DTU7710.
The rest was the same as in example 1.
The working process principle of the centralized transmission system for the flow information of the distributed natural gas flowmeter is as follows:
the server sends out an instruction (485 signal), the instruction is transmitted to a port through a mobile network, namely a mobile network converter DTU7710, the DTU7710 outputs the 485 signal to a data collection port, and the data collection port transmits a command signal to each data transmission module through 400M radio waves and further transmits the command signal to each flowmeter; the flow meter receives the command signal, outputs flow data to the corresponding data transmission module, transmits the flow data to the data collection port through radio waves, transmits the flow data to the uploading device DTU7710, and transmits the flow data to the server after packaging.
According to the content, the utility model concentrates a plurality of flow meter signals into one port, packs and transmits the signals to the server, reduces expensive mobile equipment (only one equipment is needed for a plurality of gas flow meters), and greatly reduces equipment cost; the arrangement of a data line is omitted in the radio wave transmission, so that money is saved, and a workshop is clean and tidy; the server is easy to face one port, and the working efficiency is greatly improved.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (4)
1. A centralized transmission system for flow information of distributed natural gas flowmeters comprises the natural gas flowmeters distributed in a workshop, a server arranged in a total gas amount dispatching room of a gas company and an uploading device DTU used for wirelessly transmitting flow signals of the flowmeters to the server through a mobile flow card; the flow meter is characterized in that each flow meter is provided with a data transmission module, each data transmission module can be numbered independently, all the data transmission modules transmit signals to the same data collection port through information communication respectively, the data collection port transmits flow meter flow signals to a server through an uploading device DTU, and the transmission efficiency of each data transmission module and the transmission efficiency of each data collection port are both more than 400M.
2. The system for centralized transmission of flow information on distributed natural gas flowmeters of claim 1, wherein the data transmission mode of all of said flowmeters is 485 serial transmission mode, and the transmission baud rate of all of said flowmeters is 9600.
3. The system for centralized transmission of flow information on a distributed natural gas flowmeter according to claim 1 or 2, wherein the data transmission module and the data collection port are both a model a810-L400 wireless data transmission station.
4. The centralized transmission system for the flow information of the distributed natural gas flow meters in accordance with claim 1, wherein the transmission mode of the uploading device DTU for transmitting the signals to the server is set to a packet transmission mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121452214.4U CN217741828U (en) | 2021-06-29 | 2021-06-29 | Centralized transmission system for flow information of distributed natural gas flowmeter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121452214.4U CN217741828U (en) | 2021-06-29 | 2021-06-29 | Centralized transmission system for flow information of distributed natural gas flowmeter |
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| Publication Number | Publication Date |
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| CN217741828U true CN217741828U (en) | 2022-11-04 |
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| CN202121452214.4U Active CN217741828U (en) | 2021-06-29 | 2021-06-29 | Centralized transmission system for flow information of distributed natural gas flowmeter |
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- 2021-06-29 CN CN202121452214.4U patent/CN217741828U/en active Active
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