CN106949376B - Intelligent liquefied gas steel cylinder instant monitoring management platform based on satellite positioning - Google Patents
Intelligent liquefied gas steel cylinder instant monitoring management platform based on satellite positioning Download PDFInfo
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- CN106949376B CN106949376B CN201710309413.1A CN201710309413A CN106949376B CN 106949376 B CN106949376 B CN 106949376B CN 201710309413 A CN201710309413 A CN 201710309413A CN 106949376 B CN106949376 B CN 106949376B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
Abstract
The invention discloses an intelligent liquefied petroleum gas steel cylinder real-time monitoring management platform based on satellite positioning, which mainly provides an intelligent service module, solves the problems of real-time positioning, real-time transmission of gas usage amount change, real-time early warning of gas leakage detection and the like of the liquefied petroleum gas steel cylinder in the using process of the liquefied petroleum gas steel cylinder, and provides the government authorities with the services including gas steel cylinder position information, density early warning, steel cylinder health index management and early warning, leakage real-time detection early warning and warning. The system provides information such as gas steel cylinder position information, steel cylinder usage amount display and gas replacement early warning for a gas company, steel cylinder health index, non-local enterprise filling early warning and the like, and a steel cylinder management system integrated software and hardware solution. The method provides the short message service for pre-reminding the usage amount of the steel cylinder, the inquiry service for the health index, the filling condition and the like of the steel cylinder, and the short message reminding and alarming service for leakage monitoring for the user.
Description
Technical Field
The invention belongs to the technical field of intelligent management, and particularly relates to an intelligent liquefied gas steel cylinder instant monitoring management platform based on satellite positioning.
Background
The prior liquefied petroleum gas steel bottle is used as a pressure container for storing liquefied petroleum gas in the use process, the liquefied petroleum gas belongs to inflammable and explosive dangerous goods, and the liquefied petroleum gas is poorly managed or improperly used, so that explosion accidents can be brought to users and society, property, life and other losses are caused, and the social safety is endangered. The number of the bottled gas leakage and explosion events is counted and the loss is serious every year in China. Therefore, the society has increased the management dynamics to the liquefied petroleum gas steel bottle, and at present, government authorities can't carry out real-time tracking to the management of gas steel bottle, and gas steel bottle fills chaotic, and the steel bottle life is scrapped untimely and has the problem that the emergence leaks unable first time to handle. For the management of the gas company on the steel cylinders, on one hand, the gas company provides more passive gas service conditions for customers because the service conditions of the liquefied gas steel cylinders in the use process of the customers cannot be known; on the other hand, the position information of the steel cylinders belonging to the own property rights of the gas company cannot be obtained, so that the steel cylinders are lost, or customers charge gas in other gas companies, and the problems of expiration and scrapping of the bottles filled in black gas points are caused by low greedy of the customers. For the customers, the customers can not know the gas consumption in the gas using process, and can only inform the gas company to change when the gas can not be used, so that the living inconvenience is caused.
Disclosure of Invention
The invention aims to provide an intelligent liquefied petroleum gas steel cylinder real-time monitoring management platform based on satellite positioning, which is used for solving the problem of nonstandard management of the existing liquefied petroleum gas steel cylinders, is mainly applied to household liquefied petroleum gas steel cylinders based on a GPS or Beidou positioning liquefied petroleum gas steel cylinder intelligent module, is used for carrying out real-time positioning transmission on quality information, annual inspection information, position management, capacity display, leakage detection and other information of gas steel cylinders, and can provide whole course tracking monitoring in the process of steel cylinder circulation for government gas authorities, gas companies and users by adding the intelligent liquefied petroleum gas steel cylinder real-time monitoring management platform.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the intelligent liquefied gas steel cylinder instant monitoring management platform based on satellite positioning comprises an intelligent management module arranged on a liquefied gas steel cylinder, a remote monitoring center arranged on a gas company, a management institution supervision module and a user terminal, wherein the management institution supervision module and the user terminal are respectively connected with the monitoring center through a network;
the intelligent management module arranged on the liquefied gas steel cylinder comprises: the system comprises an electronic tag, a processor, a timing circuit, a GPS or Beidou positioning module, a steel bottle weighing sensing module, a gas early warning service module and a GSM or GPRS module, wherein the timing circuit, the GPS or Beidou positioning module, the steel bottle weighing sensing module, the gas early warning service module and the GSM or GPRS module are respectively connected with the processor; wherein, the liquid crystal display device comprises a liquid crystal display device,
the electronic tag includes: two-dimensional codes and ceramic bar codes;
the timing circuit: storing annual inspection period, when the count exceeds the specified annual inspection period, sending alarm information to a processor, sending annual inspection expiration alarm information to a monitoring center by the processor through a GSM or GPRS network, and sending annual inspection expiration alarm information to a user and a management organization by the monitoring center; every time annual inspection is passed, the counter of the timing circuit is cleared by a management authority to continue the timing of the next period;
the GPS or Beidou positioning module comprises: acquiring current time information and current position information, transmitting the current position information of the liquefied gas steel cylinder to a monitoring center by a processor through a GSM or GPRS network, and transmitting the current position information of the liquefied gas steel cylinder to a management organization by the monitoring center;
the steel bottle weighing sensing module comprises: the weight of the steel bottle is acquired in real time, the weight of the fuel gas in the steel bottle is calculated through a processor, forecast information is designed according to the weight, and fuel gas exhaustion early warning information is sent to a user and a monitoring center;
the gas early warning service module is arranged on a gas pipeline of the gas outlet end of the pressure reducing valve of the liquefied gas cylinder and comprises a pressure sensor, a flammable gas detection probe and a valve controller which are arranged on the gas pipeline, wherein the signal output end of the pressure sensor is connected with the valve controller, the flammable gas detection probe is further arranged on one side of the gas pipeline, and the flammable gas detection probe is connected to the input end of the valve controller;
the management institution monitoring module comprises a background monitoring server and a handheld law enforcement terminal, wherein the background monitoring server is arranged in the management institution, the background monitoring server is connected with the monitoring center through a network and carries out data transmission through the network, and the handheld law enforcement terminal is connected with the background monitoring server through a mobile phone communication network or a special wireless network and uploads detection information in real time.
Furthermore, the two-dimensional code is bound with the ceramic bar code, so that information interconnection and interlocking are realized; the two-dimension code is a unique identity mark of the trading flow of the liquefied gas tank, and is used in a trading period, and the trading period is invalidated after being completed; the ceramic bar code is the unique identity of the liquefied gas tank, and is used in the whole life cycle of the liquefied gas tank, and the liquefied gas tank is scrapped and then is discarded.
Further, the information recorded by the two-dimensional code includes: inflation information, distribution information, installation information, usage information, payment transaction information, recovery, and sweep gas detection information; the information recorded by the ceramic bar code comprises: production information, detection information, inflation information, circulation use information, annual inspection date and scrapping destruction information; the two-dimensional code and the ceramic bar code are attached to the liquefied gas cylinder body.
Furthermore, the output end of the valve controller is connected with an LED display screen and a field alarm device.
Still further, the pressure sensor is configured as a barometer.
Furthermore, a singlechip is arranged in the valve controller, the singlechip is connected with an air pressure comparator and an air leakage comparator, the input end of the air pressure comparator is connected with the output end of the pressure sensor, and the input end of the air leakage comparator is connected with the inflammable gas detection probe.
Furthermore, the on-site alarm device comprises an LED alarm flash lamp and an alarm buzzer which are arranged on the valve controller, when the real-time value is larger than the calibrated alarm value, the singlechip drives the LED alarm flash lamp and the alarm buzzer to work, and sends out lamplight alarm and sound alarm to remind indoor users to close the valve.
Furthermore, the intelligent management module performs explosion-proof treatment, and the adopted explosion-proof grade is ExdCT6.
The invention has the following advantages: the intelligent service module is mainly provided, solves the problems of real-time positioning, real-time transmission of gas usage amount change, real-time early warning of gas leakage detection and the like of the liquefied petroleum gas steel cylinder in the use process, and provides the government authorities with the services including gas steel cylinder position information, density early warning, steel cylinder health index management and early warning, leakage real-time detection early warning and warning. The system provides information such as gas cylinder position information, cylinder usage amount display and gas replacement early warning for gas companies, cylinder health index, non-local enterprise filling early warning and the like, and a cylinder management system integrated software and hardware solution. The method provides the short message service for pre-reminding the usage amount of the steel cylinder, the inquiry service for the health index, the filling condition and the like of the steel cylinder, and the short message reminding and alarming service for leakage monitoring for the user.
Drawings
Fig. 1 is a system schematic block diagram of the present invention.
Detailed Description
The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
The invention relates to an intelligent liquefied gas steel cylinder instant monitoring management platform based on satellite positioning, which comprises an intelligent management module arranged on a liquefied gas steel cylinder, a remote monitoring center arranged in a gas company, a management institution supervision module and a user terminal which are respectively connected with the monitoring center through a network.
The intelligent management module arranged on the liquefied gas steel cylinder comprises:
1. an electronic tag, the electronic tag comprising: the two-dimensional code is bound with the ceramic bar code, so that information interconnection and interlocking are realized; the two-dimension code is a unique identity mark of the trading flow of the liquefied gas tank, and is used in a trading period, and the trading period is invalidated after being completed; the ceramic bar code is a unique identity mark of the liquefied gas tank, and is used in the whole life cycle of the liquefied gas tank, and the liquefied gas tank is scrapped and then is discarded; the information recorded by the two-dimensional code comprises: inflation, distribution, installation, use, payment transaction, recovery, residual gas detection; the information recorded by the ceramic bar code comprises: production, detection, inflation, circulation use, annual inspection date, scrapping and destruction; the two-dimensional code and the ceramic bar code are attached to the liquefied gas cylinder body.
2. A timing circuit: storing annual inspection period, when the count exceeds the specified annual inspection period, sending alarm information to a processor, sending annual inspection expiration alarm information to a monitoring center by the processor through a GSM or GPRS network, and sending annual inspection expiration alarm information to a user and a management organization by the monitoring center; the counter of the timing circuit is cleared by the regulatory agency every time an annual inspection passes.
GPS or big Dipper positioning module: the method comprises the steps of obtaining current time information and current position information, sending the current position information of the liquefied gas steel cylinder to a monitoring center through a GSM or GPRS network by a processor, and sending the current position information of the liquefied gas steel cylinder to a management organization by the monitoring center.
4. Steel bottle weighing sensing module: the weight of the steel bottle is acquired in real time, the weight of the fuel gas in the steel bottle is calculated through the processor, forecast information is designed according to the weight, and fuel gas exhaustion early warning information is sent to a user and a monitoring center.
5. The gas early warning service module is arranged on a gas pipeline of the gas outlet end of the liquefied gas cylinder pressure reducing valve and comprises a pressure sensor arranged on the gas pipeline, a signal output end of the pressure sensor is connected with the valve controller, one side of the gas pipeline is also provided with a flammable gas detection probe, the flammable gas detection probe is connected to the input end of the valve controller, and the output end of the valve controller is connected with an LED display screen and a field alarm device.
The steel bottle weighing sensing module and the pressure sensor can be used for gas exhaustion early warning, and when the two modules are compared, as long as the real-time monitoring value of one module is lower than the threshold value, the gas exhaustion alarm is sent out, so that the early warning reliability is greatly improved.
The pressure sensor is configured as a barometer. The rear end of the pressure reducing valve is provided with a branch, one branch is used for conveying liquefied gas to the furnace end, and the other branch is used for detecting air pressure and inflammable gas. The valve controller of this embodiment is equipped with the singlechip in, the singlechip is connected with atmospheric pressure comparator and gas leakage comparator, the input of atmospheric pressure comparator with pressure sensor's output links to each other, the input of gas leakage comparator with inflammable gas probe links to each other. The barometer can detect the atmospheric pressure in the gas transmission pipeline in real time, the pressure value in gas transmission pipeline and the liquefied gas cylinder, the barometer carries the real-time value of detection to the valve controller after analog-to-digital conversion in the atmospheric pressure comparator is equipped with the minimum atmospheric pressure setting value in the liquefied gas cylinder, when the real-time atmospheric pressure value in the liquefied gas cylinder that the barometer detected is less than this minimum atmospheric pressure setting value, real-time atmospheric pressure value just beats the demonstration in the LED display screen to arouse user's attention to send trigger signal to the treater simultaneously, send the early warning information that the gas will run out to user and monitoring center through GSM or GPRS network by the treater. The flammable gas detection probe can detect the content of the liquefied gas in the surrounding environment of the liquefied gas cylinder in real time, the calibration alarm value is prestored in the gas leakage comparator, when the detected real-time value is larger than the calibration alarm value, the singlechip drives the on-site alarm device and sends a trigger signal to the processor, the processor sends danger early warning information to a user and a monitoring center through a GSM or GPRS network, and the monitoring center sends the danger early warning information to a management authority.
In this embodiment, the on-site alarm device includes an LED alarm flash lamp and an alarm buzzer mounted on the valve controller, and when the real-time value is greater than the calibrated alarm value, the singlechip drives the LED alarm flash lamp and the alarm buzzer to work, and sends out a light alarm and a sound alarm to remind indoor users to close the valve.
The pressure sensor can detect the air pressure in the liquefied gas cylinder in real time, and when the air pressure is low, the LED display screen is controlled by the gas controller to display the air pressure, and the user and the gas company are informed in time; the flammable gas detection probe can detect the concentration of the liquefied gas in the surrounding environment of the liquefied gas cylinder in real time, when the concentration reaches a certain value, the on-site alarm device is controlled by the valve controller, so that a user can conveniently and timely take safety measures, and the safe use of the liquefied gas is facilitated.
And the management institution monitoring module comprises a background monitoring server and a handheld law enforcement terminal, wherein the background monitoring server is arranged in the management institution, the background monitoring server is connected with the monitoring center through a network and carries out data transmission through the network, and the handheld law enforcement terminal is connected with the background monitoring server through a mobile phone communication network or a special wireless network and uploads detection information in real time.
While the invention has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
Claims (2)
1. An intelligent liquefied gas steel cylinder real-time monitoring management platform based on satellite positioning, which is characterized in that: the monitoring management platform comprises an intelligent management module arranged on the liquefied gas steel cylinder, a remote monitoring center arranged in a gas company, a management institution supervision module and a user terminal which are respectively connected with the monitoring center through a network;
the intelligent management module of setting on the liquefied gas steel bottle includes: the system comprises an electronic tag, a processor, a timing circuit, a GPS or Beidou positioning module, a steel bottle weighing sensing module, a gas early warning service module and a GSM or GPRS module, wherein the timing circuit, the GPS or Beidou positioning module, the steel bottle weighing sensing module, the gas early warning service module and the GSM or GPRS module are respectively connected with the processor; wherein, the liquid crystal display device comprises a liquid crystal display device,
the electronic tag includes: two-dimensional codes and ceramic bar codes;
the timing circuit: storing annual inspection period, when the count exceeds the specified annual inspection period, sending alarm information to a processor, sending annual inspection expiration alarm information to a monitoring center by the processor through a GSM or GPRS network, and sending annual inspection expiration alarm information to a user and a management organization by the monitoring center; every time annual inspection is passed, the counter of the timing circuit is cleared by a management authority to continue the timing of the next period;
the GPS or Beidou positioning module comprises: acquiring current time information and current position information, transmitting the current position information of the liquefied gas steel cylinder to a monitoring center by a processor through a GSM or GPRS network, and transmitting the current position information of the liquefied gas steel cylinder to a management organization by the monitoring center;
the steel bottle weighing sensing module comprises: the weight of the steel bottle is acquired in real time, the weight of the fuel gas in the steel bottle is calculated through a processor, forecast information is designed according to the weight, and fuel gas exhaustion early warning information is sent to a user and a monitoring center;
the gas early warning service module is arranged on a gas pipeline of the gas outlet end of the pressure reducing valve of the liquefied gas cylinder and comprises a pressure sensor, a flammable gas detection probe and a valve controller which are arranged on the gas pipeline, wherein the signal output end of the pressure sensor is connected with the valve controller, the flammable gas detection probe is further arranged on one side of the gas pipeline, and the flammable gas detection probe is connected to the input end of the valve controller; the output end of the valve controller is connected with an LED display screen and a field alarm device;
the management institution monitoring module comprises a background monitoring server and a handheld law enforcement terminal, wherein the background monitoring server is arranged in the management institution, the background monitoring server is connected with the monitoring center through a network and carries out data transmission through the network, and the handheld law enforcement terminal is connected with the background monitoring server through a mobile phone communication network or a special wireless network and uploads detection information in real time;
the two-dimensional code is bound with the ceramic bar code, so that information interconnection and interlocking are realized; the two-dimension code is a unique identity mark of the trading flow of the liquefied gas tank, and is used in a trading period, and the trading period is invalidated after being completed; the ceramic bar code is a unique identity mark of the liquefied gas tank, and is used in the whole life cycle of the liquefied gas tank, and the liquefied gas tank is scrapped and then is discarded;
the information recorded by the two-dimensional code comprises: inflation information, distribution information, installation information, usage information, payment transaction information, recovery, and sweep gas detection information; the information recorded by the ceramic bar code includes: production information, detection information, inflation information, circulation use information, annual inspection date and scrapping destruction information; the two-dimensional code and the ceramic bar code are attached to the liquefied gas cylinder body;
the valve controller is internally provided with a singlechip, the singlechip is connected with an air pressure comparator and an air leakage comparator, the input end of the air pressure comparator is connected with the output end of the pressure sensor, and the input end of the air leakage comparator is connected with the inflammable gas detection probe;
the pressure sensor is set to be air pressure; the on-site alarm device comprises an LED alarm flash lamp and an alarm buzzer which are arranged on the valve controller, when the real-time value is larger than the calibrated alarm value, the singlechip drives the LED alarm flash lamp and the alarm buzzer to work, and sends out lamplight alarm and sound alarm to remind indoor users to close the valve.
2. The intelligent liquefied gas steel cylinder instant monitoring and managing platform based on satellite positioning according to claim 1, wherein: the intelligent management module performs explosion-proof treatment, and the explosion-proof grade adopted by the intelligent management module is ExdCT6.
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| CN107339607A (en) * | 2017-08-31 | 2017-11-10 | 王翔鹏 | A kind of fuel delivery mode |
| CN107388023A (en) * | 2017-08-31 | 2017-11-24 | 王翔鹏 | Gas-fuel feeder |
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| CN108876232A (en) * | 2018-03-31 | 2018-11-23 | 广东顺德科顺电子商务有限公司 | A kind of gas cylinder dispatching transaction system |
| CN109253391A (en) * | 2018-09-17 | 2019-01-22 | 华广发 | A kind of intelligent gas management system |
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| JP7358945B2 (en) | 2019-11-27 | 2023-10-12 | 株式会社レゾナック | High pressure gas containers, control systems and control equipment |
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| CN112327697A (en) * | 2020-11-05 | 2021-02-05 | 上海策元实业有限公司 | Distributed gas steel cylinder data acquisition system |
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| CN113790396A (en) * | 2021-08-03 | 2021-12-14 | 北京市公用工程设计监理有限公司 | Remote monitoring system and method for gas supply of LPG gasification pry |
| CN113743889A (en) * | 2021-08-25 | 2021-12-03 | 安徽云海量子科技有限公司 | Liquefied gas bottle circulation safety management system |
| WO2023082237A1 (en) * | 2021-11-15 | 2023-05-19 | 金玲敏 | Smart composite bottle structure |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001350512A (en) * | 2000-06-09 | 2001-12-21 | Mitsubishi Electric Corp | Production control device and producing method of refrigeration air-conditioning device |
| CN202795025U (en) * | 2012-09-27 | 2013-03-13 | 南京需求响应节能科技有限公司 | Multi-level resource scheduling management system |
| CN104914832A (en) * | 2015-05-15 | 2015-09-16 | 焦一平 | Fuel gas safety management platform and method |
| CN105782715B (en) * | 2016-03-01 | 2018-01-26 | 无锡乾元智能安全技术研究有限公司 | A kind of implementation method of filling machine identification control cylinder filling |
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