Wireless remote transmission gas meter

Abstract

The invention discloses a wireless remote transmission gas meter, which relates to the technical field of gas meters and comprises a data acquisition module, a gas pressure test data analysis module, a gas pressure deviation comparison table generation module, a temperature test data analysis module, a temperature deviation comparison table generation module and a deviation correction module, the technical problem that due to changes of pressure and temperature, the volume of fuel gas changes, and metering errors are caused is solved, and according to the real-time air pressure and the real-time temperature of the fuel gas conveyed by the fuel gas meter, the corresponding air pressure deviation coefficient and the corresponding temperature deviation coefficient are extracted from the air pressure deviation comparison table and the temperature deviation comparison table; according to the method, the real-time monitoring data of the gas meter are subjected to deviation correction calculation through a formula, a standard numerical value is obtained, the real-time monitoring data are replaced, the real-time monitoring data are corrected, metering errors caused by pressure and temperature changes are reduced, and the metering accuracy of the gas meter is remarkably improved.

Description

Technical Field

[0001] The invention belongs to the technical field of gas meters, in particular to a wireless remote transmission gas meter. Background Art

[0002] At present, there are two mainstream gas meters on the market, one is the traditional mechanical diaphragm gas meter, and the other is the prepaid diaphragm gas meter. The mechanical diaphragm gas meter measures through a mechanical roller, which is operated according to the amount of gas used. Each time a unit is used, the roller counts one, and finally the gas volume measurement record is realized. The advantages of mechanical gas meters are reliable measurement and stable quality. Prepaid diaphragm gas meters are improved on the basis of traditional mechanical meters. Electronic metering, prepayment and display functions are added on the original basis. It can display the current working status of the gas meter, etc., to realize the prepaid method of buying gas first and then using gas, which greatly reduces the cost of gas companies and labor; wireless remote transmission gas meters are composed of base meters and intelligent gas meter controllers. The base meter refers to the mechanical structure part of the intelligent gas meter. The power generated by the flow of gas makes the internal film cavity inflated and exhausted, and then drives the word wheel to count, so as to achieve the purpose of measurement; However, since changes in pressure and temperature will cause the volume of gas to change, and the base meter is usually calibrated under standard pressure and temperature conditions, the deviation of pressure and temperature in actual use will cause the actual volume of gas to be inconsistent with the measured volume, resulting in measurement errors. Based on this, a wireless remote transmission gas meter is proposed. Summary of the invention

[0003] The purpose of the present invention is to provide a wireless remote gas meter, which solves the technical problem that the volume of gas changes due to changes in pressure and temperature, resulting in measurement errors.

[0004] A wireless remote gas meter, comprising: A data acquisition module, used for acquiring test data of the gas meter at multiple test pressure values ​​and test temperature values; The air pressure test data analysis module obtains the reference deviation volume corresponding to each test air pressure value by analyzing the air pressure test data; A pressure deviation comparison table generation module generates pressure intervals based on the test pressure value, obtains pressure deviation coefficients corresponding to each pressure interval by analyzing the reference deviation volume, and generates a pressure deviation comparison table based on the pressure deviation coefficients; The temperature test data analysis module obtains the reference deviation volume corresponding to each test temperature value by analyzing the temperature test data; A temperature deviation comparison table generation module generates a temperature interval based on the test temperature value, obtains the temperature deviation coefficient corresponding to each temperature interval by analyzing the reference deviation volume, and generates a temperature deviation comparison table based on the temperature deviation coefficient; The correction module performs correction calculations on the real-time monitoring data of the gas meter based on the real-time gas pressure and temperature of the gas meter using the pressure deviation comparison table and the temperature deviation comparison table, thereby obtaining the standard values ​​corresponding to the real-time monitoring data, and replacing the real-time monitoring data of the gas meter according to the standard values.

[0005] As a further solution of the present invention: the specific method of generating air pressure test data is as follows: Make multiple gas meters of the same specifications in the same test environment, and ensure that the supply gas temperature is maintained at the standard temperature. At the same time, set multiple test gas pressure values. At each test gas pressure value, every time the character wheel of each gas meter jumps, use a high-precision flow meter and other equipment to record the corresponding actual gas volume, and mark a unit amount of gas used each time the character wheel of the gas meter jumps as the recorded gas volume; at each test gas pressure value, the actual gas volume of multiple gas meters of the same specifications is continuously obtained, and the difference between each actual gas volume and the recorded gas volume is marked as a deviation volume for recording, and then each deviation volume at each test gas pressure value is respectively bound to each test gas pressure value, thereby generating the corresponding gas pressure test data at each test gas pressure value.

[0006] As a further solution of the present invention: the specific method of obtaining the reference deviation volume corresponding to each test air pressure value is: S1: randomly select a test air pressure value from each test air pressure value as the target air pressure value, obtain multiple deviation volumes Bi from the air pressure test data of the target air pressure value, calculate the standard deviation U of the deviation volume Bi, when the standard deviation U is less than or equal to the preset value Y1, use the mean value Bp of the deviation volume Bi as the reference deviation volume C1 corresponding to the target air pressure value, when the standard deviation U is greater than the preset value Y1, use the mean value of the maximum and minimum values ​​in the deviation volume Bi as the reference deviation volume C1 corresponding to the target air pressure value, where i refers to different deviation volumes, i=1, 2, ..., a, a refers to the total number of deviation volumes, a is a positive integer, and a≥2; S2: Repeat step S1 to obtain the reference deviation volume Cn corresponding to each test air pressure value, where n refers to different test air pressure values, n=1, 2, ..., c, c refers to the total number of test air pressure values, c is a positive integer, and c satisfies c≥2.

[0007] As a further solution of the present invention: the specific method of generating the air pressure interval is: The test air pressure values ​​are sorted in ascending order so that each adjacent test air pressure value forms an air pressure interval.

[0008] As a further solution of the present invention: the specific method of generating the air pressure deviation comparison table is: Each test air pressure value is marked as Pn, and is used as the horizontal coordinate of the two-dimensional coordinate system. At the same time, the reference deviation volume Cn corresponding to each test air pressure value is used as the vertical coordinate, and multiple data points Dn with coordinates (Pn, Cn) are generated. The line segment between each two adjacent data points is marked as the stage line corresponding to each air pressure zone. The air pressure deviation coefficient Qr corresponding to each air pressure interval is calculated according to the coordinates of the data points at both ends of each stage line. Each air pressure deviation coefficient Qr is bound to its corresponding air pressure interval one by one, and then an air pressure deviation comparison table is generated; The stage change rate Qr corresponding to each air pressure interval is calculated by the formula: Qr=[Pn-P(n-1)] / [Cn-C(n-1)], where r is a different stage line, r=1, 2,..., c-1, and c-1 is the total number of stage lines.

[0009] As a further solution of the present invention: the specific method of generating temperature test data is as follows: Multiple test temperature values ​​are set so that multiple gas meters of the same specifications are in the same test environment, and the supply gas pressure is maintained at the standard gas pressure. The gas temperature is accurately controlled by a temperature control device so that it is at different test temperature values. The same method as that for obtaining the deviation volume at each test gas pressure value is used to obtain the deviation volume at each test temperature value, thereby generating temperature test data corresponding to each test temperature value.

[0010] As a further solution of the present invention: the specific method of obtaining the reference deviation volume corresponding to each test temperature value is: The temperature test data corresponding to each test temperature value are analyzed by using the same analysis method as that for the reference deviation volume corresponding to each test air pressure value, thereby obtaining the reference deviation volume corresponding to each test temperature value.

[0011] As a further solution of the present invention: the specific method of generating the air pressure deviation comparison table is: The same analysis method as that used in the air pressure deviation comparison table generation module to obtain the air pressure deviation coefficient corresponding to each air pressure interval is used to analyze the reference deviation volume corresponding to each test temperature value, and then the temperature deviation coefficient Kj corresponding to each temperature interval is obtained. The temperature deviation coefficient Kj corresponding to each temperature interval is bound to each air pressure interval one by one, and then a temperature deviation comparison table is generated, where j is a different temperature interval, j=1, 2, ..., x, x is a positive integer, and x≥1, and x is the total number of temperature intervals.

[0012] As a further solution of the present invention: the specific method of obtaining the standard value corresponding to the real-time monitoring data is: According to the real-time gas pressure and real-time temperature of the gas transported by the gas meter, the pressure deviation coefficient and temperature deviation coefficient corresponding to the real-time gas pressure and real-time temperature are obtained respectively. The correction calculation is performed through the formula: Z=[H×(1+Q1)]+[H×(1+K1)] / 2, and then the standard value Z corresponding to the real-time monitoring data is obtained, and the real-time monitoring data of the gas meter is replaced according to the standard value, wherein Q1 and K1 are the pressure deviation coefficient and temperature deviation coefficient corresponding to the real-time gas pressure and real-time temperature of the gas transported by the gas meter respectively, and H is the change value of the gas volume data recorded by the gas meter under the real-time gas pressure and real-time temperature conditions.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The present invention extracts the corresponding pressure deviation coefficient and temperature deviation coefficient from a pressure deviation comparison table and a temperature deviation comparison table according to the real-time pressure and real-time temperature of the gas transported by the gas meter, uses a formula to perform deviation correction calculation on the real-time monitoring data of the gas meter, obtains a standard value, replaces the real-time monitoring data, corrects the real-time monitoring data, reduces the metering error caused by pressure and temperature changes, and significantly improves the accuracy of gas meter measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the system framework structure of the present invention. DETAILED DESCRIPTION

[0015] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] Example 1: Please refer to Figure 1 , the present application provides a wireless remote gas meter, including; A data acquisition module is used to collect test data of the gas meter at multiple test gas pressure values ​​and test gas pressure values, and generate gas pressure test data and temperature test data; It should be noted that we need to select a resistive pressure sensor with high precision and good stability, and ensure that the sensor's range can cover the actual working pressure range of the gas. Then install the sensor near the gas meter inlet. In this way, the pressure of the gas before it enters the gas meter base can be accurately measured. For example, the common residential gas pressure is generally between several kilopascals and tens of kilopascals. The selected pressure sensor range can be 0 to 100 kilopascals to meet the measurement requirements.

[0017] Temperature sensor, choose platinum resistance temperature sensor. The advantage of platinum resistance temperature sensor is good linearity and high accuracy when measuring temperature. The measurement range can also meet the temperature requirements of the gas use environment, with an accuracy of ±0.1℃. The temperature sensor is installed inside the base meter, close to the gas flow path, so that the gas temperature can be accurately measured. For example, in the winter in the north, the gas use environment temperature may be as low as minus ten degrees Celsius, and in the summer in the south it may be as high as more than thirty degrees Celsius. The measurement range of platinum resistance temperature sensor can generally be from minus 200℃ to 850℃, which can fully meet the measurement of the ambient temperature of the gas meter.

[0018] The air pressure test data acquisition unit enables multiple gas meters of the same specification to be placed in the same test environment, and ensures that the supply gas temperature is maintained at the standard temperature, and sets multiple test air pressure values ​​at the same time, and accurately controls the air pressure at the air inlet of the gas meter through the pressure control device, so that the gas meters are respectively placed at different test air pressure values, and records the test data of multiple gas meters of the same specification at each test air pressure value, thereby generating air pressure test data corresponding to each test air pressure value; The pressure sensor is used to accurately measure the pressure of the gas before it enters the base meter. Due to its high precision and appropriate measuring range, accurate and effective pressure data can be obtained, providing a basis for subsequent analysis and compensation calculations. The temperature sensor is used to accurately measure the gas temperature in the base meter. Good linearity and high precision ensure the reliability of the temperature data, which is also an indispensable source of original data for subsequent data processing and compensation.

[0019] The specific method of obtaining the air pressure test data corresponding to each test air pressure value is: At each test gas pressure value, when the character wheel of each gas meter jumps once, it means that a unit amount of gas is used, and the corresponding actual gas volume is recorded using a high-precision flow meter or other equipment. At the same time, the unit amount of gas used each time the character wheel of the gas meter jumps once is marked as the recorded gas volume; It should be noted that: by default, each jump of the character wheel represents a unit volume recorded by the gas meter. The unit volume is generally set according to the design and standard of the gas meter, such as 1 cubic meter or 0.1 cubic meter, etc. At each test gas pressure value, the actual gas volume of multiple gas meters of the same specification is continuously obtained, and the difference between each actual gas volume and the recorded gas volume is marked as a deviation volume and recorded, and then each deviation volume at each test gas pressure value is respectively bound to each test gas pressure value, thereby generating gas pressure test data corresponding to each test gas pressure value; For example, when the gas meter is under a gas pressure of 5 kPa, the gas meter jumps once and the recorded gas volume is 1 cubic meter. The actual measured volume is 1.02 cubic meters, so the deviation volume is 0.02 cubic meters; when the gas pressure becomes 10 kPa, the gas meter jumps once and the recorded gas volume is still 1 cubic meter. The actual measured volume is 1.05 cubic meters, so the deviation volume is 0.05 cubic meters; Ensure that the air pressure data is obtained at the standard temperature, and only control the air pressure at the air inlet of the gas meter to be different, so that the air pressure at the air inlet of the gas meter is in a variable state, and then obtain the difference between the actual gas volume and the recorded gas volume. The data that changes with the change of the test air pressure is convenient for the later analysis of related data.

[0020] Since changes in gas pressure will cause changes in gas volume, the deviation volume is the difference between the actual measured volume and the volume recorded under standard gas pressure conditions. The deviation volume is calculated based on the standard temperature and is consistent with the actual test temperature to ensure data consistency. All test gas pressure data acquisition and deviation calculations are based on standard temperature to avoid the impact of temperature on volume.

[0021] The air pressure test data analysis module is used to analyze the air pressure test data corresponding to each test air pressure value, and then obtain the reference deviation volume corresponding to each test air pressure value, specifically in the following manner: S1: randomly select a test air pressure value from each test air pressure value as the target air pressure value, obtain multiple deviation volumes from the air pressure test data of the target air pressure value, and mark them as Bi, where i refers to different deviation volumes, i=1, 2, ..., a, a refers to the total number of deviation volumes in the air pressure test data of the target air pressure value, a is a positive integer, and a satisfies a≥2; Calculate the standard deviation U of the deviation volume Bi. When the standard deviation U is less than or equal to the preset value Y1, the mean value Bp of the inclined deviation volume Bi is used as the reference deviation volume C1 corresponding to the target air pressure value. When the standard deviation U is greater than the preset value Y1, the mean value of the maximum and minimum values ​​in the inclined deviation volume Bi is used as the reference deviation volume C1 corresponding to the target air pressure value. The specific value of the preset value Y1 is formulated by relevant personnel according to actual needs. The formula for calculating the standard deviation U of the deviation volume Bi is as follows: , where Bp is the mean of Bi, Bb is any one of Bi, i≥b≥1; S2: Repeat step S1 to obtain the reference deviation volume Cn corresponding to each test air pressure value, where n refers to different test air pressure values, n=1, 2, ..., c, c refers to the total number of test air pressure values, c is a positive integer, and c satisfies c≥2; The air pressure deviation comparison table generation module generates multiple air pressure intervals according to each test air pressure value, analyzes the reference deviation volume corresponding to each test air pressure value, and then obtains the air pressure deviation coefficient corresponding to each air pressure interval, and binds the air pressure deviation coefficient corresponding to each air pressure interval with each air pressure interval one by one, and then generates the air pressure deviation comparison table, specifically in the following manner; Sort the test pressure values ​​from small to large so that each adjacent test pressure value forms a pressure interval; For example, if the test pressure values ​​are A1, A2, A3 and A4 in ascending order, the generated pressure intervals are [A1, A2), [A2, A3) and [A3, A4] respectively; Each test air pressure value is marked as Pn, and is used as the horizontal coordinate of the two-dimensional coordinate system, and the reference deviation volume Cn corresponding to each test air pressure value is used as the vertical coordinate, thereby generating multiple data points Dn with coordinates (Pn, Cn), and connecting each data point Dn in order from left to right to draw a pressure deviation change curve; The line segment between each two adjacent data points on the pressure deviation curve is marked as the stage line corresponding to each pressure zone. The pressure deviation coefficient Qr corresponding to each stage line is calculated according to the coordinates of the data points at both ends of each stage line, that is, the pressure deviation coefficient Qr corresponding to each pressure interval. The specific method is: The stage change rate Qr corresponding to each pressure interval is calculated by the formula: Qr=[Pn-P(n-1)] / [Cn-C(n-1)], where r is a different stage line, r=1, 2, ..., c-1, and c-1 is the total number of stage lines; Bind the pressure deviation coefficient Qr corresponding to each pressure interval to each pressure interval one by one, and then generate a pressure deviation comparison table BP; By calculating the standard deviation of the deviation volume and other methods, the benchmark deviation volume corresponding to each test air pressure value is determined, providing key data for the subsequent generation of an air pressure deviation comparison table. The air pressure interval is generated according to the test air pressure value, and the air pressure deviation change curve is generated in combination with the benchmark deviation volume. The air pressure deviation coefficient corresponding to each air pressure interval is calculated, and the air pressure deviation comparison table is generated by binding with the air pressure interval, providing a basis for the gas meter to correct deviation under different air pressure conditions.

[0022] Embodiment 2: As the embodiment 2 of the present invention, when the present application is specifically implemented, compared with the embodiment 1, the technical solution of this embodiment is different from that of the embodiment 1 only in that in this embodiment, a temperature test data acquisition unit, a temperature test data analysis module and a temperature deviation comparison table generation module are included; The temperature test data acquisition unit enables multiple gas meters of the same specification to be placed in the same test environment, and ensures that the supply gas pressure is maintained at the standard gas pressure, and sets multiple test temperature values ​​at the same time, and accurately controls the gas temperature through the temperature control device, so that the gas temperature is at different test temperature values, and records the test data of multiple gas meters of the same specification at each test temperature value, thereby generating temperature test data corresponding to each test temperature value; The temperature test data analysis module uses the same analysis method as that used in the air pressure test data analysis module to obtain the reference deviation volume corresponding to each test air pressure value, and analyzes the temperature test data corresponding to each test temperature value, thereby obtaining the reference deviation volume corresponding to each test temperature value: The temperature deviation comparison table generation module is used to generate multiple temperature intervals according to each test temperature value, and adopts the same analysis method as that used in the air pressure deviation comparison table generation module to obtain the air pressure deviation coefficient corresponding to each air pressure interval, analyzes the reference deviation volume corresponding to each test temperature value, and then obtains the temperature deviation coefficient Kj corresponding to each temperature interval, and binds the temperature deviation coefficient Kj corresponding to each temperature interval with each air pressure interval one by one, and then generates a temperature deviation comparison table WP, wherein j is a different temperature interval, j=1, 2, ..., x, x is a positive integer, and x≥1, x is the total number of temperature intervals; A method similar to that of the air pressure test data analysis module is used to analyze the temperature test data, and the reference deviation volume corresponding to each test temperature value is determined to provide data support for generating a temperature deviation comparison table. A method similar to that of the air pressure deviation comparison table generation module is used to calculate the temperature deviation coefficient corresponding to each temperature interval, and the temperature deviation comparison table is generated by binding with the temperature interval, providing a basis for correcting the gas meter under different temperature conditions.

[0023] Embodiment 3: As the embodiment 3 of the present invention, when the present application is specifically implemented, compared with the embodiments 1 and 2, the technical solution of this embodiment is to combine the solutions of the above-mentioned embodiments 1 and 2 for implementation, and the difference between the technical solution of this embodiment and the embodiments 1 and 2 is that the embodiment includes a correction module; The correction module obtains the pressure deviation coefficient and temperature deviation coefficient corresponding to the real-time pressure and temperature respectively according to the real-time pressure and temperature of the gas delivered by the gas meter, performs correction calculation on the real-time monitoring data of the gas meter according to the pressure deviation coefficient and the temperature deviation coefficient, and then obtains the standard value corresponding to the real-time monitoring data, and replaces the real-time monitoring data of the gas meter according to the standard value to reduce the deviation of the monitoring value. The specific method is as follows: The standard value Z is calculated by the formula: Z=[H×(1+Q1)]+[H×(1+K1)] / 2; Wherein, Q1 and K1 are the pressure deviation coefficient and temperature deviation coefficient corresponding to the real-time pressure and real-time temperature of the gas delivered by the gas meter, respectively, which are extracted from the corresponding pressure deviation comparison table BP and temperature deviation comparison table WP according to the real-time pressure and real-time temperature of the gas delivered by the gas meter, and H is the real-time monitoring data of the gas meter; It should be noted that real-time monitoring data refers to the change in the gas volume or flow rate and other related metering data recorded by the gas meter under real-time gas pressure and real-time temperature conditions. These data reflect the usage of the gas meter under different environmental conditions through real-time feedback from the gas pressure and temperature sensors. According to the real-time gas pressure and real-time temperature of the gas transported by the gas meter, the corresponding gas pressure deviation coefficient and temperature deviation coefficient are extracted from the gas pressure deviation comparison table and the temperature deviation comparison table, and the real-time monitoring data of the gas meter are corrected by using the formula to obtain the standard value, correct the real-time monitoring data, reduce the metering deviation caused by changes in gas pressure and temperature, realize the comprehensive correction of the metering data of the gas meter, further improve the metering accuracy of the gas meter, enable the gas meter to measure gas more accurately under different environmental conditions, and enhance the adaptability of the gas meter to different environments.

[0024] Embodiment 4: As the fourth embodiment of the present invention, the technical solution of this embodiment is to combine and implement the solutions of the above-mentioned embodiments 1, 2 and 3.

[0025] The above formulas are all dimensionless and numerical calculations. The formula is a formula for the most recent real situation obtained by collecting a large amount of data and performing software simulation. The preset parameters and thresholds in the formula are set by technicians in this field according to actual conditions.

[0026] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A wireless remote gas meter, characterized in that: include: A data acquisition module, used for collecting test data of the gas meter at multiple test pressure values ​​and test temperature values; The air pressure test data analysis module obtains the reference deviation volume corresponding to each test air pressure value by analyzing the air pressure test data; A pressure deviation comparison table generation module generates pressure intervals based on the test pressure value, obtains pressure deviation coefficients corresponding to each pressure interval by analyzing the reference deviation volume, and generates a pressure deviation comparison table based on the pressure deviation coefficients; The temperature test data analysis module obtains the reference deviation volume corresponding to each test temperature value by analyzing the temperature test data; A temperature deviation comparison table generation module generates a temperature interval based on the test temperature value, obtains the temperature deviation coefficient corresponding to each temperature interval by analyzing the reference deviation volume, and generates a temperature deviation comparison table based on the temperature deviation coefficient; The correction module performs correction calculations on the real-time monitoring data of the gas meter based on the real-time gas pressure and temperature of the gas meter using the pressure deviation comparison table and the temperature deviation comparison table, thereby obtaining the standard values ​​corresponding to the real-time monitoring data, and replacing the real-time monitoring data of the gas meter according to the standard values.

2. A wireless remote gas meter according to claim 1, characterized in that: The specific method of generating air pressure test data is as follows: Through the air pressure test data acquisition unit, multiple gas meters of the same specifications are placed in the same test environment, the supply gas temperature is maintained at the standard temperature, and multiple test air pressure values ​​are set. Under this condition, high-precision flow meters and other equipment are used to continuously record the actual gas volume corresponding to each jump of the wheel of each gas meter, and a unit amount of gas used for each jump of the wheel is marked as the recorded gas volume. The difference between the actual gas volume and the recorded gas volume is recorded as the deviation volume. Finally, each test air pressure value is bound to the corresponding deviation volume to generate air pressure test data at each test air pressure value.

3. A wireless remote gas meter according to claim 1, characterized in that: The specific method of obtaining the reference deviation volume corresponding to each test air pressure value is: S1: randomly select a test air pressure value from each test air pressure value as the target air pressure value, obtain multiple deviation volumes Bi from the air pressure test data of the target air pressure value, calculate the standard deviation U of the deviation volume Bi, when the standard deviation U is less than or equal to the preset value Y1, use the mean value Bp of the deviation volume Bi as the reference deviation volume C1 corresponding to the target air pressure value, when the standard deviation U is greater than the preset value Y1, use the mean value of the maximum and minimum values ​​in the deviation volume Bi as the reference deviation volume C1 corresponding to the target air pressure value, where i refers to different deviation volumes, i=1, 2, ..., a, a refers to the total number of deviation volumes, a is a positive integer, and a≥2; S2: Repeat step S1 to obtain the reference deviation volume Cn corresponding to each test air pressure value, where n refers to different test air pressure values, n=1, 2, ..., c, c refers to the total number of test air pressure values, c is a positive integer, and c satisfies c≥2.

4. A wireless remote gas meter according to claim 3, characterized in that: The specific method of generating air pressure intervals is: The test air pressure values ​​are sorted in ascending order so that each adjacent test air pressure value forms an air pressure interval.

5. A wireless remote gas meter according to claim 4, characterized in that: The specific method of generating the air pressure deviation comparison table is as follows: Each test air pressure value is marked as Pn, and is used as the horizontal coordinate of the two-dimensional coordinate system. At the same time, the reference deviation volume Cn corresponding to each test air pressure value is used as the vertical coordinate to generate multiple data points Dn with coordinates (Pn, Cn). The line segment between each two adjacent data points is marked as the stage line corresponding to each air pressure zone. The air pressure deviation coefficient Qr corresponding to each air pressure interval is calculated according to the coordinates of the data points at both ends of each stage line. Each air pressure deviation coefficient Qr is bound to its corresponding air pressure interval one by one, and then an air pressure deviation comparison table is generated.

6. A wireless remote gas meter according to claim 2, characterized in that: The specific method of generating temperature test data is as follows: A plurality of test temperature values ​​are set by means of a temperature test data acquisition unit, so that a plurality of gas meters of the same specification are placed in the same test environment, and the supply gas pressure is maintained at the standard gas pressure. The gas temperature is precisely controlled by means of a temperature control device so that the gas temperature is placed at different test temperature values. The deviation volumes at each test temperature value are acquired in the same manner as that at each test gas pressure value, thereby generating temperature test data corresponding to each test temperature value.

7. A wireless remote gas meter according to claim 3, characterized in that: The specific method of obtaining the reference deviation volume corresponding to each test temperature value is: The temperature test data corresponding to each test temperature value are analyzed by using the same analysis method as that for the reference deviation volume corresponding to each test air pressure value, thereby obtaining the reference deviation volume corresponding to each test temperature value.

8. A wireless remote gas meter according to claim 5, characterized in that: The specific method of generating the air pressure deviation comparison table is as follows: The same analysis method as that used in the air pressure deviation comparison table generation module to obtain the air pressure deviation coefficient corresponding to each air pressure interval is used to analyze the reference deviation volume corresponding to each test temperature value, and then the temperature deviation coefficient Kj corresponding to each temperature interval is obtained. The temperature deviation coefficient Kj corresponding to each temperature interval is bound to each air pressure interval one by one, and then a temperature deviation comparison table is generated, where j is a different temperature interval, j=1, 2, ..., x, x is a positive integer, and x≥1, and x is the total number of temperature intervals.

9. A wireless remote gas meter according to claim 8, characterized in that: The specific method for obtaining the standard value corresponding to the real-time monitoring data is: According to the real-time gas pressure and real-time temperature of the gas transported by the gas meter, the pressure deviation coefficient and temperature deviation coefficient corresponding to the real-time gas pressure and real-time temperature are obtained respectively. The correction calculation is performed through the formula: Z=[H×(1+Q1)]+[H×(1+K1)] / 2, and then the standard value Z corresponding to the real-time monitoring data is obtained, and the real-time monitoring data of the gas meter is replaced according to the standard value, wherein Q1 and K1 are the pressure deviation coefficient and temperature deviation coefficient corresponding to the real-time gas pressure and real-time temperature of the gas transported by the gas meter respectively, and H is the change value of the gas volume data recorded by the gas meter under the real-time gas pressure and real-time temperature conditions.

10. A wireless remote gas meter according to claim 5, characterized in that: The specific method for calculating the pressure deviation coefficient corresponding to each pressure interval is: The stage change rate Qr corresponding to each air pressure interval is calculated by the formula: Qr=[Pn-P(n-1)] / [Cn-C(n-1)], where r is a different stage line, r=1, 2,..., c-1, and c-1 is the total number of stage lines.

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