CN104199405A - Liquefied natural gas station monitoring system - Google Patents
Liquefied natural gas station monitoring system Download PDFInfo
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- CN104199405A CN104199405A CN201410421544.5A CN201410421544A CN104199405A CN 104199405 A CN104199405 A CN 104199405A CN 201410421544 A CN201410421544 A CN 201410421544A CN 104199405 A CN104199405 A CN 104199405A
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- host computer
- lng
- terminating machine
- natural gas
- liquefied natural
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention discloses a liquefied natural gas station monitoring system, which comprises an LNG (Liquefied Natural Gas) main station, an upper computer used for obtaining detecting data of the LNG main station, multiple LNG sub-stations, and multiple terminals used for obtaining detecting data of each corresponding LNG sub-station. The upper computer is connected with the terminals through a bus and comprises a bus scheduling module; the bus scheduling module outputs a bus control signal based on the priority of the terminals to control communication between the upper computer and a corresponding terminal; the upper computer judges whether the LNG sub-stations are abnormal based on the received detecting data in the terminals; the upper computer further comprises an alarm module; the upper computer after determining that the LNG sub-stations are abnormal alarms through an alarming module; the upper computer controls the bus scheduling module to replace the current priority of the terminal corresponding to the abnormality by the lowest priority after the alarming module sends the alarm. The liquefied natural gas station monitoring system can obtain the detecting data of multiple liquefied natural gas stations in time, and can perform intensive monitoring on the detecting data of each liquefied natural gas station.
Description
Technical field
The present invention relates to the measurement result of LNG application site and the fields of instrument running status such as Centralized Monitoring LNG liquid filling station, LNG transformer station, relate in particular to a kind of liquefied natural gas station supervisory system.
Background technology
Liquefied Natural Gas fuel cost is low, in composition, major part is methane, after burning, objectionable constituent are less, be widely used in transport, the industries such as electric energy conversion, for example, the fuel of LNG liquid filling station filling vehicle storage tank using LNG as engine, and for example, LNG transformer station by night electric energy conversion be that LNG cold energy is stored then cold energy and again utilized, etc., similar LNG liquid filling station, on the website of the utilization LNG such as LNG transformer station, there is multiple measurement instrument to measure LNG storage tank, but do not have at present a kind of good supervisory system to carry out Centralized Monitoring to the operating state of the measurement data of multiple websites and measurement instrument simultaneously, and how timely, in same monitor supervision platform, know rapidly these measurement data, instrument operating state is problem demanding prompt solution to process in time.
Summary of the invention
The object of this invention is to provide a kind of liquefied natural gas station supervisory system, this system can be obtained the detection data of multiple liquefied natural gas stations in time, and can carry out Centralized Monitoring to the detection data of each liquefied natural gas station.
In order to solve the problems of the technologies described above, the present invention adopts technical scheme: a kind of liquefied natural gas station supervisory system, comprise a LNG main website, one detects the host computer of data for obtaining LNG main website, multiple LNG substation, and for obtaining multiple terminating machines of corresponding each LNG substation detection data, host computer is connected by bus with described terminating machine, host computer comprises bus scheduling module, described bus scheduling module is communicated by letter according to terminating machine priority output bus control signal control host computer and counterpart terminal machine, host computer judges that according to the detection data in the terminating machine receiving whether LNG substation is abnormal, host computer also comprises alarm module, host computer is reported to the police by alarm module after determining extremely, described in PC control, bus scheduling module replaces with lowest priority by the current priority of abnormal corresponding terminating machine after alarm module is reported to the police.
Preferably, described bus scheduling block configuration bus priority table, the precedence information of terminating machine is stored in described bus priority table, the initialized setting of terminating machine priority according to corresponding LNG substation and LNG main website spacing by near to far away and priority reduces, the renewal of terminating machine priority is that priority is down to minimum after described abnormal generation.
Preferably, described host computer also comprises the data transmit-receive module that receives described terminating machine detection data and send described bus control signal, store the internal memory of described detection data, and transferring to the dma module of internal memory from data transmit-receive module by detecting data, the processor of host computer connects internal memory by Cache and transfers described detection data.
Preferably, described alarm module comprises action alarm module, and when described host computer determines that according to the detection data that receive the measurement result of LNG substation is abnormal, described action alarm module carries out sound and/or light is reported to the police.
Preferably, described measurement result is measured by following one or several instrument: flowmeter, thermometer, pressure gauge, liquid level gauge.
Preferably, described alarm module also comprises equipment alarm module, and when described host computer determines that according to the detection data that receive the instrument of LNG substation breaks down, described equipment alarm module carries out sound and/or light is reported to the police.
Preferably, between described host computer and terminating machine, pass through Modbus protocol communication.
Preferably, described host computer also connects real-time data base server, and host computer is by the described detection data that receive and corresponding terminating machine information, extremely described real-time data base server stores of abnormal information real-time Transmission thereof.
Preferably, described host computer also connects historical database server, host computer regularly reads the information of real-time data base server memory storage and transmits it to described historical database server storage, when end of transmission (EOT), upgrade described real-time data base server make its marker bit of transmission information be made as inefficacy, host computer is stored to described real-time data base server by the detection data of newly obtaining and corresponding terminating machine information, abnormal information thereof and upgrades respective markers position for effectively.
Preferably, described host computer also comprises display module, and the information that host computer obtains described real-time data base server and/or historical database server shows.
Adopt after technique scheme, the present invention compared with prior art has following outstanding advantages: the present invention is configuration bus scheduler module in host computer, seize bus and determine the order of communicating by letter of each terminating machine and host computer according to terminating machine priority height, host computer can detect the abnormal of LNG substation according to the detection data in the terminating machine communicating with and report to the police, change the priority of terminating machine simultaneously, the current priority of abnormal corresponding terminating machine is replaced with lowest priority by PC control bus scheduling module, owing to determining that abnormal terminating machine (LNG substation) occurs that abnormal possibility is less in succession, the order that it is communicated by letter with host computer drains into finally, can ensure to occur that abnormal terminating machine is processed timely below.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of liquefied natural gas station supervisory system of the embodiment of the present invention;
Fig. 2 is the structural representation of the host computer of the embodiment of the present invention.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
A lot of details are set forth in the following description so that fully understand the present invention.But the present invention can implement to be much different from alternate manner described here, and those skilled in the art can do similar popularization without prejudice to intension of the present invention in the situation that, therefore the present invention is not subject to the restriction of following public concrete enforcement and concrete accompanying drawing.
Fig. 1 shows the structural representation of a kind of liquefied natural gas station supervisory system of the embodiment of the present invention, comprise that a C of LNG main website, detects the host computer M of data, multiple LNG substation and detects multiple terminating machines of data for obtaining corresponding each LNG substation for obtaining LNG main website, host computer M is connected by bus B us with described terminating machine.On the C of LNG main website and each LNG substation, be equipped with multiple instrument, the (not shown)s such as such as flowmeter, thermometer, pressure gauge, liquid level gauge, for measuring the data such as flow, temperature, pressure, liquid level of LNG, host computer M and each terminating machine obtain respectively these measurement data.Described detection data comprise the measurement data of instrument, and the operating state of instrument (whether fault).
In the present embodiment, host computer M comprises bus scheduling module M1, described bus scheduling module M1 communicates by letter according to terminating machine priority output bus control signal control host computer M and counterpart terminal machine, host computer M judges that according to the detection data in the terminating machine receiving whether LNG substation is abnormal, host computer also comprises alarm module M2, host computer M determines abnormal report to the police by alarm module M2 afterwards, and host computer M controls described bus scheduling module M1 the current priority of abnormal corresponding terminating machine is replaced with to lowest priority.
In the liquefied natural gas station supervisory system of Fig. 1, LNG substation comprises: LNG substation one A1, LNG substation two A2, LNG substation three A3 ... LNG substation NA4, corresponding, terminating machine comprises: terminating machine one B1, terminating machine two B2, terminating machine three B3 ... terminating machine NB4, N is greater than 3 positive integer.The instrument such as the flowmeter of the C of LNG main website and each LNG substation, thermometer, pressure gauge, liquid level gauge record the corresponding data of LNG in the C of LNG main website and each LNG substation, and transferring to corresponding host computer M and each terminating machine, host computer M and each terminating machine also can obtain the operating state of corresponding each instrument.Each terminating machine transfers to host computer M by bus by detecting data (comprising the operating state of measurement data and/or instrument).
In the present embodiment, described bus scheduling module M1 disposes bus priority table (not shown on figure), the precedence information of terminating machine is stored in described bus priority table, terminating machine is successively communicated by letter by bus B us with host computer M according to respective priority height, first the terminating machine that priority is high obtains bus B us and authorizes to communicate by letter with host computer M, terminating machine priority is carried out initialization according to corresponding LNG substation and the C of LNG main website spacing, spacing is reduced successively by nearly extremely terminating machine priority far away, terminating machine priority is upgraded after described alarm module M2 reports to the police, terminating machine priority-level after just having occurred is extremely down to lowest priority, last of all terminating machine queues obtain bus grant carry out with host computer on communicating by letter once.Exemplary, in Fig. 1, terminating machine one B1, terminating machine two B2, terminating machine three B3 ... the initialization priority of terminating machine NB4 is respectively first, second and third ... N, to authorize order (terminating machine communicate by letter with host computer order) be terminating machine one B1, terminating machine two B2, terminating machine three B3 to bus B us first ... terminating machine NB4, if this time host computer M detects the two B2 appearance of video data terminal machine extremely, the order of bus B us mandate is next time terminating machine one B1, terminating machine three B3 ... terminating machine NB4, terminating machine two B2.It should be noted that, the described results abnormity that extremely comprises measurement data and the running of instrument are abnormal.
So far be appreciated that, the detection data of each terminating machine can obtain and process successively according to priority height, detect in time extremely at host computer M place, and, hold intelligiblely, abnormal LNG substation (can obtain artificial or automatically process in time) has just occurred, and that abnormal possibility occurs in the back is in succession lower, thereby the priority-level of counterpart terminal machine is down to minimum, the detection data that are conducive to other-end machine obtain processing more preferably, thereby detect faster the abnormal of all the other each LNG substations.
Referring to Fig. 2, described host computer M also comprises the data transmit-receive module M3 that receives described terminating machine detection data and send described bus control signal, store the internal memory M5 of described detection data, and transfer to DMA (the Direct Memory Access of internal memory from data transmit-receive module M3 by detecting data, direct memory access) module M4, the processor MC of host computer connects internal memory M5 by Cache (cache memory) M6 and transfers described detection data.The data transmit-receive module M3 of host computer M receives and detects after data, directly send data in internal memory M5 and store by dma module M4, transmit and directly do not take processor MC, can ensure the operational paradigm of processor MC, and data transmission is to the speed of internal memory M5.In CacheM6, from internal memory M4, obtain also buffer memory and will deliver to the data that processor MC processes, processor MC obtains described detection data by CacheM6, has further ensured to detect the processed promptness of data.
In Fig. 2, the processor MC control bus scheduler module M1 of host computer M sends bus control signal to data transmit-receive module M3, thereby controls corresponding terminating machine and host computer M carries out data communication.
Host computer M judges that according to the detection data in the terminating machine receiving whether LNG substation is abnormal, host computer M reports to the police by alarm module after determining extremely, preferably, described alarm module comprises action alarm module M21, when described host computer M determines that according to the detection data that receive the measurement result of LNG substation is abnormal, processor MC control action alarm module M21 reports to the police, and described action alarm module M21 carries out sound and/or light is reported to the police.Preferably, described measurement result is measured by following one or several instrument: flowmeter, thermometer, pressure gauge, liquid level gauge.Preferably, described alarm module also comprises equipment alarm module M22, when described host computer M determines that according to the detection data that receive the instrument of LNG substation breaks down, processor M opertaing device alarm module M22 reports to the police, and described equipment alarm module M22 carries out sound and/or light is reported to the police.
Optionally, between described host computer M and terminating machine by Modbus agreement (a kind of General Main is from communications protocol) communication.
In the present embodiment, described host computer M also connects real-time data base server (not shown on figure), and host computer M is by the described detection data that receive and corresponding terminating machine information, extremely described real-time data base server stores of abnormal information real-time Transmission thereof.Host computer M can obtain described detection data and corresponding terminating machine information, abnormal information thereof from real-time data base server, in the real-time data base of real-time data base server, every record is provided with a marker bit, in the time having data to enter, marker bit is made as effectively, and data can be upgraded.
In the present embodiment, described host computer M also connects historical database server (not shown on figure), host computer M regularly reads the information of real-time data base server memory storage and transmits it to described historical database server storage, when end of transmission (EOT), upgrading described real-time data base server makes the respective markers position of its information that has transferred to historical database server be made as inefficacy, host computer M can obtain new detection data in communicating by letter with next terminating machine, again the detection data of obtaining and corresponding terminating machine information thereof, abnormal information is upgraded and is deposited in real-time data base server and respective markers position is made as effectively.
In the present embodiment, described host computer M also comprises display module M7, processor MC controls the demonstration of display module M7, and host computer M can obtain canned data in described real-time data base server and/or historical database server and show on display module M7.
Store at real-time data base server, the historical database server of host computer M connection detecting data, real-time data memory is at real-time data base server, history data store is in historical database server, can show at display module M7 detecting data, not only be conducive to the analysis of operating personnel to real time data, more be conducive to operating personnel and utilize historical data regression analysis, and by the empirical value analysis of historical data, real time data is processed, and carry out abnormality processing, operation maintenance in time.
To sum up, the present invention is configuration bus scheduler module in host computer, seize bus and determine the order of communicating by letter of each terminating machine and host computer according to terminating machine priority height, host computer can detect the abnormal of LNG substation according to the detection data in the terminating machine communicating with and report to the police, change the priority of terminating machine simultaneously, the current priority of abnormal corresponding terminating machine is replaced with lowest priority by PC control bus scheduling module, owing to determining that abnormal terminating machine (LNG substation) occurs that abnormal possibility is less in succession, the order that it is communicated by letter with host computer drains into finally, can ensure to occur that abnormal terminating machine is processed timely below.
Although the present invention with preferred embodiment openly as above; but it is not for limiting claim; any those skilled in the art without departing from the spirit and scope of the present invention; can make possible variation and amendment, therefore protection scope of the present invention should be as the criterion with the scope that the claims in the present invention were defined.
Claims (10)
1. a liquefied natural gas station supervisory system, it is characterized in that, comprise a LNG main website, one detects the host computer of data for obtaining LNG main website, multiple LNG substation, and for obtaining multiple terminating machines of corresponding each LNG substation detection data, host computer is connected by bus with described terminating machine, host computer comprises bus scheduling module, described bus scheduling module is communicated by letter according to terminating machine priority output bus control signal control host computer and counterpart terminal machine, host computer judges that according to the detection data in the terminating machine receiving whether LNG substation is abnormal, host computer also comprises alarm module, host computer is reported to the police by alarm module after determining extremely, described in PC control, bus scheduling module replaces with lowest priority by the current priority of abnormal corresponding terminating machine after alarm module is reported to the police.
2. liquefied natural gas station supervisory system as claimed in claim 1, it is characterized in that, described bus scheduling block configuration bus priority table, the precedence information of terminating machine is stored in described bus priority table, the initialized setting of terminating machine priority according to corresponding LNG substation and LNG main website spacing by near to far away and priority reduces, the renewal of terminating machine priority is that priority is down to minimum after described abnormal generation.
3. liquefied natural gas station supervisory system as claimed in claim 1, it is characterized in that, described host computer also comprises the data transmit-receive module that receives described terminating machine detection data and send described bus control signal, store the internal memory of described detection data, and transferring to the dma module of internal memory from data transmit-receive module by detecting data, the processor of host computer connects internal memory by Cache and transfers described detection data.
4. liquefied natural gas station supervisory system as claimed in claim 1, it is characterized in that, described alarm module comprises action alarm module, and when described host computer determines that according to the detection data that receive the measurement result of LNG substation is abnormal, described action alarm module carries out sound and/or light is reported to the police.
5. liquefied natural gas station supervisory system as claimed in claim 4, is characterized in that, described measurement result is measured by following one or several instrument: flowmeter, thermometer, pressure gauge, liquid level gauge.
6. liquefied natural gas station supervisory system as claimed in claim 4, it is characterized in that, described alarm module also comprises equipment alarm module, and when described host computer determines that according to the detection data that receive the instrument of LNG substation breaks down, described equipment alarm module carries out sound and/or light is reported to the police.
7. liquefied natural gas station supervisory system as claimed in claim 1, is characterized in that, passes through Modbus protocol communication between described host computer and terminating machine.
8. liquefied natural gas station supervisory system as claimed in claim 1, it is characterized in that, described host computer also connects real-time data base server, and host computer is by the described detection data that receive and corresponding terminating machine information, extremely described real-time data base server stores of abnormal information real-time Transmission thereof.
9. liquefied natural gas station supervisory system as claimed in claim 8, it is characterized in that, described host computer also connects historical database server, host computer regularly reads the information of real-time data base server memory storage and transmits it to described historical database server storage, when end of transmission (EOT), upgrade described real-time data base server make its marker bit of transmission information be made as inefficacy, host computer is stored to described real-time data base server by the detection data of newly obtaining and corresponding terminating machine information, abnormal information thereof and upgrades respective markers position for effectively.
10. liquefied natural gas station supervisory system as claimed in claim 8 or 9, is characterized in that, described host computer also comprises display module, and the information that host computer obtains described real-time data base server and/or historical database server shows.
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| CN201410421544.5A CN104199405A (en) | 2014-08-25 | 2014-08-25 | Liquefied natural gas station monitoring system |
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| CN201410421544.5A CN104199405A (en) | 2014-08-25 | 2014-08-25 | Liquefied natural gas station monitoring system |
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Cited By (8)
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| CN104820410A (en) * | 2015-03-20 | 2015-08-05 | 苏州首旗信息科技有限公司 | Gas station real-time monitoring device |
| CN104964169A (en) * | 2015-07-07 | 2015-10-07 | 成都国光电子仪表有限责任公司 | Natural gas station linkage alarm system |
| CN104964167A (en) * | 2015-07-07 | 2015-10-07 | 成都国光电子仪表有限责任公司 | Natural gas station linkage system with good system stability |
| CN105020587A (en) * | 2015-07-07 | 2015-11-04 | 成都国光电子仪表有限责任公司 | Natural gas station unattended operation system with good safety performance |
| CN107085375A (en) * | 2016-02-16 | 2017-08-22 | 周锡卫 | A kind of distributed intelligence house system based on intelligent controller |
| CN108536741A (en) * | 2018-03-09 | 2018-09-14 | 国网江苏省电力公司无锡供电公司 | A kind of energy method for monitoring abnormality |
| CN112330494A (en) * | 2020-11-26 | 2021-02-05 | 沈阳惠东管道控制有限公司 | Real-time data acquisition and processing system for natural gas transmission station |
| CN116908402A (en) * | 2023-07-17 | 2023-10-20 | 广州众拓计算机科技有限公司 | Water quality monitoring system based on Internet of things |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104820410A (en) * | 2015-03-20 | 2015-08-05 | 苏州首旗信息科技有限公司 | Gas station real-time monitoring device |
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| CN107085375B (en) * | 2016-02-16 | 2024-03-08 | 周锡卫 | Distributed intelligent home system based on intelligent controller |
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| CN112330494A (en) * | 2020-11-26 | 2021-02-05 | 沈阳惠东管道控制有限公司 | Real-time data acquisition and processing system for natural gas transmission station |
| CN116908402A (en) * | 2023-07-17 | 2023-10-20 | 广州众拓计算机科技有限公司 | Water quality monitoring system based on Internet of things |
| CN116908402B (en) * | 2023-07-17 | 2024-03-05 | 广州众拓计算机科技有限公司 | Water quality monitoring system based on Internet of things |
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Application publication date: 20141210 |