CN116052406B - Remote intelligent meter reading system - Google Patents
Remote intelligent meter reading system Download PDFInfo
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- CN116052406B CN116052406B CN202310339985.XA CN202310339985A CN116052406B CN 116052406 B CN116052406 B CN 116052406B CN 202310339985 A CN202310339985 A CN 202310339985A CN 116052406 B CN116052406 B CN 116052406B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
- G01F25/15—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters specially adapted for gas meters
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C25/00—Arrangements for preventing or correcting errors; Monitoring arrangements
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Abstract
The invention relates to the technical field of intelligent meter reading management, in particular to a remote intelligent meter reading system. According to the invention, through monitoring the operation parameters and the environmental data of the pipeline corresponding to the target gas meter, the real-time operation safety coefficient of the target gas meter and the comprehensive safety coefficient of the target gas meter in the set use period are analyzed, so that the automation degree of the remote meter reading system is improved, the problem of data acquisition time lag is effectively avoided, the accuracy and timeliness of the meter reading data are further ensured, the intelligent level of the remote meter reading system is realized, meanwhile, the corresponding numerical value accuracy coefficient of the target gas meter is evaluated according to the numerical value parameter of the target gas meter in the set use period, and control and management are performed, so that the phenomenon that larger errors occur between meter reading data and actual gas use data is effectively avoided, the accuracy of the meter reading data corresponding to the gas meter is further improved, and the economic loss of residential users or gas operation companies is reduced.
Description
Technical Field
The invention relates to the technical field of intelligent meter reading management, in particular to a remote intelligent meter reading system.
Background
It is well known that fuel gas is an indispensable living necessity for all people, and it is directly related to the benefits of the country and the property of people. Along with the change of life style of people, the problem of difficult household meter reading is increasingly prominent, the manual meter reading mode of meter reading personnel in a month is time-consuming and labor-consuming, the accuracy and timeliness of meter reading data are not guaranteed, and the problems of privacy, safety and timeliness of users, high working intensity of meter reading personnel and the like are also related. The remote intelligent gas meter reading system can automatically read meter, improves the gas meter reading efficiency, saves a great amount of manpower and material resources of gas operation companies, improves the intelligent level of the gas system, and is the development direction of a gas meter reading mode.
The gas gradually enters the resident home, so that convenience is provided for life, potential safety hazards are increased at the same time, and accidents such as fire disaster and the like caused by gas leakage occur. The current remote intelligent gas meter reading system can automatically collect meter reading data, but cannot intelligently analyze the safety of a pipeline corresponding to a gas meter by combining the meter reading data. At present, the safety monitoring of the known gas meter corresponding pipeline still adopts manual operation, and has the defects of low automation degree, data acquisition time lag, data timeliness, poor accuracy and the like, so that early warning and emergency treatment cannot be timely carried out when gas leaks, the possibility of occurrence of indoor fire accidents is further improved, and serious threats are brought to lives and properties of residential users.
Meanwhile, the current remote intelligent gas meter reading system can only read meter reading data according to metering equipment corresponding to a gas meter, but because of mechanical use loss of the metering equipment, larger errors can occur between meter reading data of the metering equipment and actual gas use data, so that the accuracy of the meter reading data corresponding to the gas meter is reduced, serious economic loss is further caused for residential users or gas management companies, and the stable operation development of the gas management companies is indirectly unfavorable.
Disclosure of Invention
In order to overcome the defects in the background technology, the embodiment of the invention provides a remote intelligent meter reading system which can effectively solve the problems related to the background technology.
The aim of the invention can be achieved by the following technical scheme: the invention provides a remote intelligent meter reading system, which comprises: and the gas meter operation parameter monitoring module is used for monitoring the operation parameters of the pipeline corresponding to the target gas meter in the use time period, wherein the operation parameters comprise the gas flow rate and the gas volume at the inlet and the outlet.
And the gas meter operation parameter analysis module is used for analyzing the real-time operation safety coefficient of the target gas meter by combining the environmental data of the pipeline in the use time period, sending out early warning reminding if the real-time operation safety coefficient is smaller than the preset safety coefficient threshold value, and otherwise, acquiring the operation parameter error data of the pipeline in each use time period in the set use period.
And the comprehensive safety coefficient evaluation module is used for evaluating the comprehensive safety coefficient of the target gas meter in the set service period.
And the gas numerical parameter reading module is used for extracting a monitoring video of the target gas meter in the set use period, reading the numerical parameter of the target gas meter in the set use period and evaluating the numerical accuracy coefficient of the target gas meter in the set use period.
And the gas meter control management module is used for controlling and managing the target gas meter according to the comprehensive safety coefficient and the numerical precision coefficient of the target gas meter in the set use period.
The data storage library is used for storing a proper temperature range and a proper humidity range of the gas pipeline in a normal use process and storing a monitoring video and pipeline operation parameters of the target gas meter in a set use period.
As a further scheme, the real-time operation safety coefficient analysis mode of the target gas meter is as follows: collecting environment data of a pipeline corresponding to a target gas meter in a using time period, wherein the environment data is temperature and humidity, and further obtaining an environment safety influence factor corresponding to the pipeline, and recording the environment safety influence factor as
。
Extracting the gas flow rate and the gas volume of the inlet and the outlet of the pipeline corresponding to the target gas meter in the using time period, and respectively marking the gas flow rate and the gas volume as
、/>
And +.>
、/>
Analyzing real-time operation safety coefficient of target gas meter
Wherein->
Is natural constant (18)>
The gas flow speed difference and the gas volume difference are allowed under the preset safe operation condition of the gas pipeline.
As a further proposal, the analysis mode of the environmental safety influence factor corresponding to the pipeline is that the proper temperature range and the proper humidity range of the gas pipeline in the normal use process are extracted from the data storage library, and the analysis mode is based on the temperature of the pipeline in the use time period
Obtaining a temperature safety influence weight index corresponding to the pipeline>
Wherein->
Is the minimum value, the maximum value and the +.f of the gas pipeline in the proper temperature range during the normal use>
For the allowable temperature error of the set gas pipeline in the low temperature environment and the high temperature environment, ++>
And the temperature correction factors of the gas pipeline in the low-temperature environment and the high-temperature environment are set.
And similarly obtaining the weight index of the humidity safety influence corresponding to the pipeline
Further analyzing the environmental safety influence factor corresponding to the pipeline>
Wherein U is a set constant, U > 1, ">
The set temperature influence weight factors and the humidity influence weight factors are respectively.
As a further scheme, the comprehensive safety coefficient evaluation formula of the target gas meter in the set service period is as follows
Wherein->
Safety weight factors corresponding to the set gas flow speed error and the gas volume error are respectively +.>
The pipeline is in the set service period
、/>
Gas flow rate error value for the usage period,/->
For the pipeline in the set period of use +.>
、/>
Gas volume error value of using time period, < >>
，/>
To set the number of usage periods within the usage period, and (2)>
The ratio of the allowable gas flow rate error and the allowable gas volume error are set.
As a further scheme, the numerical parameters of the reading target gas meter in the set use period are specifically as follows: and extracting a monitoring video of the target gas meter in a set use period from the data storage library, obtaining metering equipment images of each acquisition time point of the target gas meter in each use time period in the set use period, and reading the gas values of each acquisition time point in each use time period.
According to the monitoring video of the target gas meter in the set use period, extracting the sub-video segments of each use time period of the target gas meter in the set use period, and further obtaining the rotation number of the transmission equipment in the sub-video segments of each use time period.
As a further scheme, the evaluation mode of the numerical precision coefficient of the target gas meter in the set use period is as follows: according to the gas values of each acquisition time point in each use time period, obtaining the gas use volume of each acquisition stage in each use time period
，/>
，/>
Numbering each acquisition stage, and extracting pipeline operation parameters of the target gas meter in a set use period from a data storage library, wherein the pipeline operation parameters are gas volumes at inlets of each acquisition stage in each use period>
And gas volume at the outlet->
Gas flow rate at inlet of each acquisition time point +.>
And gas flow rate at the outlet->
，/>
，/>
For the number of each acquisition time point, analyzing the gas volume accuracy index of the target gas meter in the set use period +.>
。
According to the rotation number of the transmission equipment in the sub-video segment of each using time period, obtaining the gas flow velocity passing through the transmission equipment in each using time period
Analyzing a gas flow speed accuracy index of the target gas meter in a set use period +.>
。
According to the evaluation formula
Obtaining the numerical accuracy coefficient of the target gas meter in the set service period +.>
，/>
For the set fuel gas volume accuracy weight factor, fuel gas flow speed accuracy weight factor, +.>
。
As a further scheme, the gas volume accuracy index analysis mode of the target gas meter in the set service period is as follows
Wherein->
For the set fuel gas volume accuracy correction factor, < +.>
For the number of acquisition phases +.>
Is->
In the using time periodFirst->
The gas volume accuracy index in the acquisition stage has a calculation formula of
，/>
And (3) measuring the gas usage volume error value for the set gas meter.
As a further scheme, the gas flow speed accuracy index analysis mode of the target gas meter in the set service period is as follows
，/>
For the set fuel gas flow speed accuracy correction factor, < ->
For the set gas flow speed difference influencing factors at the inlet and outlet of the gas meter during use, +.>
For the number of acquisition time points, +.>
Is a preset fuel gas flow speed accuracy correction factor.
As a further scheme, the specific content of the gas meter control management module comprises: and comparing the comprehensive safety coefficient of the target gas meter in the set service period with a preset safety coefficient threshold value, and if the comprehensive safety coefficient of the target gas meter is smaller than the safety coefficient threshold value, indicating that the target gas meter is in a dangerous state, sending out early warning reminding and controlling the total control valve of the pipeline corresponding to the target gas meter to perform emergency closing operation.
And comparing the numerical value precision coefficient of the target gas meter in the set use period with a preset numerical value precision coefficient threshold value, and if the numerical value precision coefficient is smaller than the numerical value precision coefficient threshold value, informing a gas manager to maintain and check the target gas meter, and controlling the target gas meter to perform emergency closing operation corresponding to the pipeline total control valve.
As a further scheme, the specific content of the gas meter control management module further comprises a duration recording unit and a duration analysis management unit.
And the duration record management unit is used for recording the unused duration of the gas corresponding to the target gas meter when the target gas meter is in the unused state of the gas.
The time length analysis management unit is used for comparing the unused time length of the fuel gas corresponding to the target fuel gas meter with the preset unused time length of the fuel gas, and if the unused time length of the fuel gas exceeds the preset unused time length, the total control valve of the pipeline corresponding to the target fuel gas meter is controlled to be closed.
Compared with the prior art, the invention has the following beneficial effects: (1) According to the invention, the real-time operation safety coefficient of the target gas meter is analyzed by monitoring the operation parameters and the environmental data of the corresponding pipeline of the target gas meter in the use time period, so that the automation degree of a remote meter reading system is improved, the problem of data acquisition time lag is effectively avoided, the accuracy and timeliness of meter reading data are further ensured, early warning is timely carried out when gas leaks, the possibility of occurrence of indoor fire accidents is reduced, and the life and property safety of residential users is ensured.
(2) According to the invention, the operation parameter error data of each use time period of the pipeline in the set use period is obtained, and the comprehensive safety coefficient of the target gas meter in the set use period is evaluated, so that the safety performance of the gas meter can be regularly evaluated, the intelligent level of a remote meter reading system is realized, emergency treatment can be timely carried out when the gas meter is in a dangerous state, and the residence where the gas meter is located can safely use the gas system.
(3) According to the invention, the numerical parameter of the target gas meter in the set service period is read, the numerical accuracy coefficient of the target gas meter in the set service period is evaluated, and the target gas meter is controlled and managed, so that the phenomenon that larger errors occur between meter reading data and actual gas service data is effectively avoided, the accuracy of the gas meter corresponding to the meter reading data is further improved, the economic loss of residential users or gas operation companies is reduced, and the stable operation development of the gas operation companies is greatly facilitated.
(4) According to the invention, the total control valve of the pipeline corresponding to the target gas meter is processed according to the unused time length of the gas corresponding to the target gas meter, so that the use quality of the pipeline gas is indirectly improved, the phenomenon that the pipeline gas is invalid due to long-time unused is avoided, the occurrence rate of potential safety hazards when a residential user uses the pipeline gas is reduced, and the gas use satisfaction degree of the residential user is further improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a diagram illustrating a system module connection according to the present invention.
FIG. 2 is a schematic diagram of the components of the control and management module of the gas meter according to the present invention.
FIG. 3 is a schematic diagram of the target gas meter according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the remote intelligent meter reading system of the invention comprises a gas meter operation parameter monitoring module, a gas meter operation parameter analysis module, a comprehensive safety coefficient evaluation module, a gas numerical value parameter reading module, a gas meter control management module and a data storage library.
The gas meter operation parameter monitoring module is connected with the gas meter operation parameter analysis module, the comprehensive safety coefficient evaluation module is respectively connected with the gas meter operation parameter analysis module and the gas meter control management module, the gas numerical value parameter reading module is connected with the gas meter control management module, and the data storage library is respectively connected with the gas meter operation parameter analysis module and the gas numerical value parameter reading module.
The gas meter operation parameter monitoring module is used for monitoring operation parameters of the pipeline corresponding to the target gas meter in the use time period, wherein the operation parameters comprise gas flow rates and gas volumes at the inlet and the outlet.
It should be noted that, the gas flow rate and the gas volume monitoring mode of the inlet of the pipeline corresponding to the target gas meter in the using time period are as follows: the gas flow rate sensor is arranged in a pipeline total control valve at the inlet of the pipeline corresponding to the target gas meter, the gas flow rate at the inlet of each acquisition time point of the pipeline corresponding to the target gas meter in the using time period is monitored through the gas flow rate sensor, and the average gas flow rate at the inlet of the pipeline corresponding to the target gas meter in the using time period is obtained through calculation according to the average value, and is taken as the gas flow rate at the inlet
。
Taking the time length between two adjacent acquisition time points as an acquisition stage to obtain each acquisition stage of the corresponding pipeline of the target gas meter in the use time period, and analyzing the gas flow velocity at the inlet of each acquisition stage of the corresponding pipeline of the target gas meter in the use time period
And extracting standard inner diameter of pipeline corresponding to target gas meter>
Analyzing the gas volume of the pipeline corresponding to the target gas meter at the inlet of each acquisition stage in the using time period>
，/>
For the duration between two adjacent acquisition time points, < +.>
，
For the number of the acquisition phases +.>
The corresponding pipeline of the target gas meter is +.>
And acquiring the gas flow rate at the inlet of the stage, and further calculating to obtain the gas volume of the inlet of the pipeline corresponding to the target gas meter in the using time period through a summation formula.
And obtaining the gas flow rate and the gas volume of the outlet of the pipeline corresponding to the target gas meter in the using time period according to the gas flow rate and the gas volume monitoring mode of the inlet of the pipeline corresponding to the target gas meter in the using time period.
The gas meter operation parameter analysis module is used for analyzing the real-time operation safety coefficient of the target gas meter by combining the environmental data of the pipeline in the use time period, if the real-time operation safety coefficient is smaller than the preset safety coefficient threshold value, sending out early warning reminding, otherwise, acquiring the operation parameter error data of the pipeline in each use time period in the set use period.
In a specific embodiment, the real-time operation safety factor analysis mode of the target gas meter is as follows: collecting environment data of a pipeline corresponding to a target gas meter in a using time period, wherein the environment data is temperature and humidity, and further obtaining an environment safety influence factor corresponding to the pipeline, and recording the environment safety influence factor as
。
Extracting corresponding pipeline of target gas meterThe gas flow rate and the gas volume at the inlet and the outlet in the using time period are respectively recorded as
And +.>
Analyzing real-time operation safety coefficient of target gas meter
Wherein->
Is natural constant (18)>
The gas flow speed difference and the gas volume difference are allowed under the preset safe operation condition of the gas pipeline.
The invention analyzes the real-time operation safety coefficient of the target gas meter by monitoring the operation parameters and the environmental data of the corresponding pipeline of the target gas meter in the use time period, thereby improving the automation degree of the remote meter reading system, effectively avoiding the problem of data acquisition time delay, further ensuring the accuracy and timeliness of meter reading data, further ensuring early warning in time when gas leaks, reducing the possibility of occurrence of indoor fire accidents and ensuring the life and property safety of residential users.
In a specific embodiment, the analysis mode of the environmental safety influence factor corresponding to the pipeline is that the proper temperature range and the proper humidity range of the gas pipeline in the normal use process are extracted from the data storage library, and the analysis mode is based on the temperature of the pipeline in the use time period
Obtaining a temperature safety influence weight index corresponding to the pipeline
Wherein->
Is the minimum value, the maximum value and the +.f of the gas pipeline in the proper temperature range during the normal use>
For the allowable temperature error of the set gas pipeline in the low temperature environment and the high temperature environment, ++>
And the temperature correction factors of the gas pipeline in the low-temperature environment and the high-temperature environment are set.
And similarly obtaining the weight index of the humidity safety influence corresponding to the pipeline
Further analyzing the environmental safety influence factor corresponding to the pipeline>
Wherein U is a set constant, U > 1, ">
The set temperature influence weight factors and the humidity influence weight factors are respectively.
Further, the obtaining the operation parameter error data of each use time period of the pipeline in the set use period specifically includes: counting the operation parameters of the pipeline corresponding to the target gas meter in each use time period in the set use period, and respectively marking the gas flow rate and the gas volume at the inlet and at the outlet of the pipeline in each use time period in the set use period as
And +.>
Comparing the gas flow speed error values of the pipelines in each use time period in the set use period>
Wherein->
For the pipeline in the set period of use +.>
Environmental safety influencing factor of the usage period, < ->
At the same time, the gas volume error value of each use time period of the pipeline in the set use period is obtained>
And taking the gas flow speed error value and the gas volume error value as operation parameter error data.
And in the same way, the analysis mode of the environmental safety influence factors of the pipelines in each use time period in the set use period is consistent with the analysis mode of the environmental safety influence factors corresponding to the pipelines.
The comprehensive safety coefficient evaluation module is used for evaluating the comprehensive safety coefficient of the target gas meter in a set service period.
In one embodiment, the comprehensive safety factor evaluation formula of the target gas meter in the set use period is as follows
Wherein->
Safety weight factors corresponding to the set gas flow speed error and the gas volume error are respectively +.>
For the pipeline in the set period of use +.>
、/>
Gas flow rate error value for the usage period,/->
For the pipeline in the set period of use +.>
、/>
Gas volume error value of using time period, < >>
，/>
To set the number of usage periods within the usage period, and (2)>
The ratio of the allowable gas flow rate error and the allowable gas volume error are set.
The invention obtains the operation parameter error data of each use time period of the pipeline in the set use period, and evaluates the comprehensive safety coefficient of the target gas meter in the set use period, thereby being capable of regularly evaluating the safety performance of the gas meter, realizing the intelligent level of the remote meter reading system, timely carrying out emergency treatment when the gas meter is in a dangerous state, and ensuring that the residence where the gas meter is located can safely use the gas system.
The gas numerical parameter reading module is used for extracting a monitoring video of the target gas meter in a set use period, reading numerical parameters of the target gas meter in the set use period and evaluating numerical accuracy coefficients of the target gas meter in the set use period.
Referring to fig. 3, the numerical parameters of the target gas meter in the set usage period are specifically as follows: and extracting a monitoring video of the target gas meter in a set use period from the data storage library, obtaining metering equipment images of each acquisition time point of the target gas meter in each use time period in the set use period, and reading the gas values of each acquisition time point in each use time period.
According to the monitoring video of the target gas meter in the set use period, extracting the sub-video segments of each use time period of the target gas meter in the set use period, and further obtaining the rotation number of the transmission equipment in the sub-video segments of each use time period.
In a specific embodiment, the evaluation mode of the numerical precision coefficient of the target gas meter in the set use period is as follows: according to the gas values of each acquisition time point in each use time period, obtaining the gas use volume of each acquisition stage in each use time period
，/>
，/>
Numbering each acquisition stage, and extracting pipeline operation parameters of the target gas meter in a set use period from a data storage library, wherein the pipeline operation parameters are gas volumes at inlets of each acquisition stage in each use period>
And gas volume at the outlet->
Gas flow rate at inlet of each acquisition time point +.>
And gas flow rate at the outlet->
，/>
，/>
For the number of each acquisition time point, analyzing the gas volume accuracy index of the target gas meter in the set use period +.>
。
Further, the gas volume accuracy index analysis mode of the target gas meter in the set service period is as follows
Wherein->
For the set fuel gas volume accuracy correction factor, < +.>
For the number of acquisition phases +.>
Is->
The use time period is +.>
The gas volume accuracy index in the acquisition stage has a calculation formula of
，/>
And (3) measuring the gas usage volume error value for the set gas meter.
According to the rotation number of the transmission equipment in the sub-video segment of each using time period, obtaining the gas flow velocity passing through the transmission equipment in each using time period
Analyzing a gas flow speed accuracy index of the target gas meter in a set use period +.>
。
Further, the gas flow speed accuracy index analysis mode of the target gas meter in the set service period is as follows
，/>
For the set fuel gas flow speed accuracy correction factor, < ->
For the set gas flow speed difference influencing factors at the inlet and outlet of the gas meter during use, +.>
For the number of acquisition time points, +.>
Is a preset fuel gas flow speed accuracy correction factor.
Further, the gas usage volume obtaining mode of each collecting stage in each usage time period is as follows: and taking the time length between two adjacent acquisition time points as an acquisition stage, obtaining each acquisition stage in each use time period, extracting the gas values of the two acquisition time points corresponding to each acquisition stage in each use time period, performing difference processing on the gas values to obtain the gas value difference of each acquisition stage in each use time period, and further taking the gas value difference as the gas use volume of each acquisition stage in each use time period.
Further, the gas flow rate passing through the transmission device in each using time period is obtained by
。
According to the evaluation formula
Obtaining the numerical accuracy coefficient of the target gas meter in the set service period +.>
，/>
For the set fuel gas volume accuracy weight factor and fuel gas flow speed accuracy weight factor,/>
。
the invention evaluates the numerical accuracy coefficient of the target gas meter in the set use period by reading the numerical parameter of the target gas meter in the set use period, and controls and manages the target gas meter, thereby effectively avoiding the phenomenon that the meter reading data and the actual gas use data have larger errors, further improving the accuracy of the gas meter corresponding to the meter reading data, reducing the economic loss of residential users or gas operation companies, and being beneficial to the stable operation development of the gas operation companies to a great extent.
The gas meter control management module is used for controlling and managing the target gas meter according to the comprehensive safety coefficient and the numerical precision coefficient of the target gas meter in the set use period.
In one embodiment, the specific content of the gas meter control management module includes: and comparing the comprehensive safety coefficient of the target gas meter in the set service period with a preset safety coefficient threshold value, and if the comprehensive safety coefficient of the target gas meter is smaller than the safety coefficient threshold value, indicating that the target gas meter is in a dangerous state, sending out early warning reminding and controlling the total control valve of the pipeline corresponding to the target gas meter to perform emergency closing operation.
And comparing the numerical value precision coefficient of the target gas meter in the set use period with a preset numerical value precision coefficient threshold value, and if the numerical value precision coefficient is smaller than the numerical value precision coefficient threshold value, informing a gas manager to maintain and check the target gas meter, and controlling the target gas meter to perform emergency closing operation corresponding to the pipeline total control valve.
Referring to fig. 2, the specific content of the gas meter control management module further includes a duration recording unit and a duration analysis management unit.
And the duration record management unit is used for recording the unused duration of the gas corresponding to the target gas meter when the target gas meter is in the unused state of the gas.
It should be explained that when the metering device corresponding to the target gas meter is not operated, the target gas meter is in a gas unused state.
The time length analysis management unit is used for comparing the unused time length of the fuel gas corresponding to the target fuel gas meter with the preset unused time length of the fuel gas, and if the unused time length of the fuel gas exceeds the preset unused time length, the total control valve of the pipeline corresponding to the target fuel gas meter is controlled to be closed.
The invention processes the pipeline total control valve corresponding to the target gas meter according to the unused time length of the gas corresponding to the target gas meter, thereby indirectly improving the use quality of the pipeline gas, avoiding the phenomenon that the pipeline gas is invalid due to long-time unused, reducing the occurrence rate of potential safety hazards when the residential user uses, and further improving the gas use satisfaction of the residential user.
The data storage library is used for storing a proper temperature range and a proper humidity range of the gas pipeline in a normal use process and storing a monitoring video and pipeline operation parameters of the target gas meter in a set use period.
The foregoing is merely illustrative and explanatory of the principles of this invention, as various modifications and additions may be made to the specific embodiments described, or similar arrangements may be substituted by those skilled in the art, without departing from the principles of this invention or beyond the scope of this invention as defined in the claims.
Claims (6)
1. A remote intelligent meter reading system, comprising:
the gas meter operation parameter monitoring module is used for monitoring operation parameters of the pipeline corresponding to the target gas meter in the use time period, wherein the operation parameters comprise gas flow rates and gas volumes at the inlet and the outlet;
the gas meter operation parameter analysis module is used for analyzing the real-time operation safety coefficient of the target gas meter by combining the environmental data of the pipeline in the use time period, if the real-time operation safety coefficient is smaller than the preset safety coefficient threshold value, sending out early warning reminding, otherwise, acquiring operation parameter error data of the pipeline in each use time period in the set use period;
the comprehensive safety coefficient evaluation module is used for evaluating the comprehensive safety coefficient of the target gas meter in a set service period;
the gas numerical parameter reading module is used for extracting a monitoring video of the target gas meter in a set use period, reading numerical parameters of the target gas meter in the set use period and evaluating numerical accuracy coefficients of the target gas meter in the set use period;
the gas meter control management module is used for controlling and managing the target gas meter according to the comprehensive safety coefficient and the numerical precision coefficient of the target gas meter in the set use period;
the data storage library is used for storing a proper temperature range and a proper humidity range of the gas pipeline in a normal use process and storing a monitoring video and pipeline operation parameters of the target gas meter in a set use period;
the real-time operation safety coefficient analysis mode of the target gas meter is as follows:
collecting environment data of a pipeline corresponding to a target gas meter in a using time period, wherein the environment data is temperature and humidity, and further obtaining an environment safety influence factor corresponding to the pipeline, and recording the environment safety influence factor as
；
Extracting the gas flow rate and the gas volume of the inlet and the outlet of the pipeline corresponding to the target gas meter in the using time period, and respectively marking the gas flow rate and the gas volume as
、/>
And +.>
、/>
Real-time analysis of target gas metersSafety factor of operation
Wherein e is a natural constant, < >>
、/>
The gas flow velocity difference value and the gas volume difference value are allowed under the preset safe operation condition of the gas pipeline;
the comprehensive safety coefficient evaluation formula of the target gas meter in the set service period is as follows
Wherein->
、/>
Safety weight factors corresponding to the set gas flow speed error and the gas volume error are respectively +.>
For the pipeline in the set period of use +.>
、/>
Gas flow rate error value for the usage period,/->
For the pipeline in the set period of use +.>
、/>
Gas volume error value of using time period, < >>
，/>
To set the number of usage periods within the usage period, and (2)>
The allowable gas flow rate error proportion and the allowable gas volume error proportion are set;
the numerical parameters of the target gas meter in the set service period are specifically as follows:
extracting a monitoring video of the target gas meter in a set use period from a data storage library, obtaining metering equipment images of each acquisition time point of the target gas meter in each use time period in the set use period, and reading the gas values of each acquisition time point in each use time period;
extracting sub-video segments of each use time period of the target gas meter in the set use period according to the monitoring video of the target gas meter in the set use period, and further acquiring the rotation number of the transmission equipment in the sub-video segments of each use time period;
the evaluation mode of the numerical value precision coefficient of the target gas meter in the set service period is as follows:
according to the gas values of each acquisition time point in each use time period, obtaining the gas use volume of each acquisition stage in each use time period
，/>
，/>
Numbering each acquisition stage, and extracting the target gas meter from the data storage librarySetting pipeline operation parameters in a service period, wherein the pipeline operation parameters are gas volumes at inlets of collecting stages in each service period>
And gas volume at the outlet->
Gas flow rate at inlet of each acquisition time point +.>
And gas flow rate at the outlet->
，/>
，/>
For the number of each acquisition time point, analyzing the gas volume accuracy index of the target gas meter in the set use period +.>
；
According to the rotation number of the transmission equipment in the sub-video segment of each using time period, obtaining the gas flow velocity passing through the transmission equipment in each using time period
Analyzing a gas flow speed accuracy index of the target gas meter in a set use period +.>
；
According to the evaluation formula
Obtaining the accurate numerical value of the target gas meter in the set service periodSex coefficient->
，/>
For the set fuel gas volume accuracy weight factor, fuel gas flow speed accuracy weight factor, +.>
。
2. A remote intelligent meter reading system according to claim 1, wherein: the analysis mode of the environmental safety influence factors corresponding to the pipeline is as follows:
extracting a suitable temperature range and a suitable humidity range of the gas pipeline in normal use from the data storage warehouse, and based on the temperature of the pipeline in the use time period
Obtaining a temperature safety influence weight index corresponding to the pipeline
Wherein->
Is the minimum value, the maximum value and the +.f of the gas pipeline in the proper temperature range during the normal use>
For the allowable temperature error of the set gas pipeline in the low temperature environment and the high temperature environment, ++>
The temperature correction factor of the gas pipeline in the low-temperature environment and the high-temperature environment is set;
and similarly obtaining the weight index of the humidity safety influence corresponding to the pipeline
Further analyzing the environmental safety influence factor corresponding to the pipeline>
Wherein U is a set constant, U > 1, ">
The set temperature influence weight factors and the humidity influence weight factors are respectively.
3. A remote intelligent meter reading system according to claim 1, wherein: the gas volume accuracy index analysis mode of the target gas meter in the set service period is as follows
Wherein->
For the set fuel gas volume accuracy correction factor, < +.>
For the number of acquisition phases +.>
Is->
The use time period is +.>
The gas volume accuracy index in the acquisition stage has a calculation formula of +.>
，
Gas meter for gas meterA volume error value is used.
4. A remote intelligent meter reading system according to claim 1, wherein: the gas flow speed accuracy index analysis mode of the target gas meter in the set service period is as follows
，/>
For the set fuel gas flow speed accuracy correction factor, < ->
For the set gas flow speed difference influencing factors at the inlet and outlet of the gas meter during use, +.>
For the number of acquisition time points, +.>
Is a preset fuel gas flow speed accuracy correction factor.
5. A remote intelligent meter reading system according to claim 1, wherein: the specific contents of the gas meter control management module comprise:
comparing the comprehensive safety coefficient of the target gas meter in a set service period with a preset safety coefficient threshold value, and if the comprehensive safety coefficient of the target gas meter is smaller than the safety coefficient threshold value, indicating that the target gas meter is in a dangerous state, sending out early warning reminding and controlling the total control valve of the pipeline corresponding to the target gas meter to perform emergency closing operation;
and comparing the numerical value precision coefficient of the target gas meter in the set use period with a preset numerical value precision coefficient threshold value, and if the numerical value precision coefficient is smaller than the numerical value precision coefficient threshold value, informing a gas manager to maintain and check the target gas meter, and controlling the target gas meter to perform emergency closing operation corresponding to the pipeline total control valve.
6. A remote intelligent meter reading system according to claim 5, wherein: the specific content of the gas meter control management module also comprises a duration recording unit and a duration analysis management unit;
the time length recording management unit is used for recording the unused time length of the gas corresponding to the target gas meter when the target gas meter is in the unused state of the gas;
the time length analysis management unit is used for comparing the unused time length of the fuel gas corresponding to the target fuel gas meter with the preset unused time length of the fuel gas, and if the unused time length of the fuel gas exceeds the preset unused time length, the total control valve of the pipeline corresponding to the target fuel gas meter is controlled to be closed.
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| JP6225325B2 (en) * | 2013-06-04 | 2017-11-08 | パナソニックＩｐマネジメント株式会社 | Gas shut-off device |
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