Beidou wide-area atmospheric water vapor inversion and meteorological parameter real-time monitoring method

Abstract

The invention discloses a Beidou wide area atmospheric water vapor inversion and meteorological parameter real-time monitoring method, which belongs to the technical field of meteorological monitoring, and is mainly composed of a hardware platform and a software platform, wherein the hardware platform mainly comprises acquisition of temperature, humidity and pressure meteorological data, Beidou navigation satellite signal receiving and real-time acquisition of original observation data of BDS, GPS, GLONASS and Galileo systems, and the software platform mainly comprises precision positioning software, distributed water vapor inversion software, centralized water vapor inversion software and remote monitoring software. By the adoption of the method, real-time, high-precision, high-temporal-spatial-resolution and remotely-monitored atmospheric water vapor and meteorological parameter detection can be provided, the real-time temperature is obtained through the temperature, humidity and pressure element acquisition module, the weighted average temperature is obtained according to the local weighted calculation model, the water vapor conversion factor is calculated, and the real-time temperature and the weighted average temperature are calculated. And calculating the precipitation amount of the atmosphere through the water-vapor conversion factor and the zenith wet retardation amount.

Description

Technical Field

[0001] The present invention belongs to the technical field of meteorological monitoring, and in particular relates to a Beidou wide-area atmospheric water vapor inversion and meteorological parameter real-time monitoring method. Background Art

[0002] Water vapor is the most important greenhouse gas in the atmosphere. It plays a key role in the atmospheric water cycle, has a fundamental impact on the earth's climate, is one of the causes of meteorological disasters, and constantly threatens human property and life safety. With the continuous development of science and technology, atmospheric water vapor inversion and real-time monitoring of meteorological parameters have made it possible to solve the problem of meteorological disasters. However, due to the complex spatiotemporal variations of atmospheric precipitable water in atmospheric water vapor, it is difficult to accurately estimate the PWV content. Therefore, accurate and high-resolution PWV content estimation plays an important role in monitoring the spatiotemporal variations of water vapor, establishing weather forecast models, and climate research.

[0003] Traditionally, the main methods for detecting atmospheric precipitable water content include radiosonde, ionosphere detection, ground-based meteorological radar and water vapor radiometer. Among them, radiosonde technology is a battery-powered telemetry instrument sent into the atmosphere by a balloon to measure various atmospheric parameters. It has high accuracy, but it only has two results at 00:00:00 and 12:00:00 UTC, and the time resolution is low. Ionosphere detection emits electromagnetic waves of different frequencies and receives echo signals to obtain ionosphere maps, echo strength, ionospheric delay and Doppler frequency shift to determine the electron density of the ionosphere at different altitudes. It is still the basic measurement method of the ionosphere, but it can only detect the ionosphere from the ground to an altitude of about 500 kilometers and cannot receive echoes when the sun is highly active. Ground-based meteorological radar has a high temporal and spatial resolution and plays an important role in sudden disaster monitoring, forecasting and warning. It mainly detects clouds, rain and wind through radars and frequency-modulated continuous wave radars, but its equipment is expensive. Water vapor radiometers can measure the water vapor content and total liquid water in the satellite signal path, which is used to determine the precipitable water and cloud liquid water, but their instrument costs are relatively high and their spatial coverage is poor during moderate to heavy rain.

[0004] From the above analysis, it can be seen that although the radiosonde technology has high accuracy, its time resolution is low. Ionospheric detection is the basic measurement method of the ionosphere at present, but it can only detect the ionosphere from the ground to about 500 kilometers above sea level. Ground-based meteorological radar has high temporal and spatial resolution, but its equipment is expensive. Water vapor radiometer can determine the amount of precipitation, but its cost is high and the spatial coverage is poor during moderate to heavy rain.

[0005] Based on this, the present invention designs a Beidou wide-area atmospheric water vapor inversion and meteorological parameter real-time monitoring method to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to solve the problem that the traditional methods for detecting atmospheric precipitable water content mainly include radiosonde, ionosphere detection, ground-based meteorological radar and water vapor radiometer methods. Although the radiosonde technology has high accuracy, its time resolution is low. Ionosphere detection is the basic measurement method of the ionosphere at present, but it can only detect the ionosphere from the ground to an altitude of about 500 kilometers. Ground-based meteorological radar has high temporal and spatial resolution, but its equipment is expensive. Water vapor radiometer can determine the precipitable water content, but its cost is high and the spatial coverage is poor during medium to heavy rain. A Beidou wide-area atmospheric water vapor inversion and meteorological parameter real-time monitoring method is proposed.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions: A Beidou wide-area atmospheric water vapor inversion and meteorological parameter real-time monitoring method comprises the following steps: S1: Construct an atmospheric water vapor inversion and meteorological parameter real-time monitoring system; S2: Build a meteorological element collection and water vapor inversion integrated terminal, which consists of four modules: temperature, humidity and pressure meteorological element collection module, Beidou navigation signal reception and distributed water vapor inversion terminal module, data transmission module and power supply module; S3: Construct a centralized atmospheric water vapor inversion system, which consists of three modules: data receiving module, centralized water vapor inversion and remote monitoring and product display module, and computing and storage device module; S4: Build system integration, which consists of two systems: distributed processing integration system and centralized processing integration system; S5: Build the hardware platform of atmospheric water vapor inversion and meteorological parameter real-time monitoring system. The Beidou signal receiving part collects the original observation data of Beidou, GPS, GLONASS, Galileo and other systems in real time, as well as the temperature, humidity and pressure meteorological elements. S6: Construct a software platform for atmospheric water vapor inversion and real-time monitoring of meteorological parameters, receive satellite real-time precise orbit and precise clock correction products from the Internet or satellite communications, obtain the estimated total zenith delay and zenith wet delay of the terminal device in real time through data preprocessing and precise single-point positioning, calculate the water vapor conversion factor, and finally calculate the atmospheric precipitable water.

[0008] As a further description of the above technical solution: The BeiDou signal receiving part is used to collect the original observation data of BeiDou, GPS, GLONASS and Galileo systems in real time.

[0009] As a further description of the above technical solution: The temperature, humidity and pressure meteorological element acquisition module is used to collect temperature, relative humidity and atmospheric pressure meteorological elements in real time, and the collected meteorological elements are sent to the signal receiving processing and water vapor inversion module of the water vapor inversion terminal.

[0010] As a further description of the above technical solution: The water vapor inversion module uses Beidou / GNSS original observation data and adopts a data transmission module to receive satellite real-time precise orbit and precise clock correction products from the network or satellite communication, and solves through data preprocessing and precise single-point positioning.

[0011] As a further description of the above technical solution: The estimated value of the total tropospheric zenith delay and the zenith wet delay of the terminal device are obtained in real time.

[0012] As a further description of the above technical solution: The temperature, humidity and pressure meteorological element acquisition module is used to obtain the real-time temperature, and the weighted average temperature is obtained according to the local weighted calculation model to calculate the water vapor conversion factor.

[0013] As a further description of the above technical solution: The atmospheric precipitable water is calculated by the water vapor conversion factor and the zenith wet delay.

[0014] As a further description of the above technical solution: For the distributed water vapor inversion system, the atmospheric precipitable water sent by the terminal is directly sent to the data storage management module and visualized in the atmospheric product display software platform.

[0015] As a further description of the above technical solution: For the centralized water vapor inversion system, the Beidou / GNSS observation data and atmospheric element parameters received by the data receiving module are used to perform centralized inversion of water vapor.

[0016] As a further description of the above technical solution: The Beidou / GNSS raw data and meteorological element observation data received by the data receiving module are used to perform data preprocessing and quality control, high-precision water vapor inversion on the server, and finally store, manage and display the products for analysis.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In the present invention, through the water vapor inversion terminal based on Beidou signal, the Beidou navigation signal receiving part collects the original observation data of Beidou, GPS, GLONASS and Galileo systems in real time, and the temperature, humidity and pressure meteorological element collection terminal collects the temperature, relative humidity and atmospheric pressure meteorological elements in real time, and sends them to the signal receiving processing and water vapor inversion module of the water vapor inversion terminal. The water vapor inversion module can use the Beidou / GNSS original observation data and adopt the data transmission module to receive the satellite real-time precise orbit and precise clock correction products from the network or satellite communication. Through data preprocessing and precise single point positioning solution, the total tropospheric zenith delay estimation value and zenith wet delay amount of the terminal device can be obtained in real time.

[0018] 2. In the present invention, the real-time temperature obtained by the temperature, humidity and pressure element acquisition module is used to obtain the weighted average temperature according to the local weighted calculation model, and the water vapor conversion factor is calculated. The atmospheric precipitable water is calculated by the water vapor conversion factor and the zenith moisture delay, which overcomes the shortcomings of low temporal and spatial resolution, low accuracy and high equipment cost.

[0019] 3. In the present invention, by combining the original observation data of BeiDou, GPS, GLONASS and Galileo systems, the temporal and spatial resolution of atmospheric water vapor inversion is significantly improved, and more frequent and more accurate water vapor monitoring can be achieved, thereby better meeting the needs of weather forecasting and disaster warning.

[0020] 4. The present invention effectively overcomes the limitations of traditional technologies in monitoring accuracy and cost, and utilizes the universally receivable Beidou satellite navigation signal to reduce the construction and maintenance costs of the overall monitoring system. In addition, through the Beidou real-time PPP technology, the atmospheric precipitable water can be estimated more accurately, thereby improving the response speed and early warning capabilities to meteorological changes.

[0021] 5. In the present invention, the system integration design realizes the centralized processing and visual display of data, can efficiently manage and utilize monitoring data, and enhances the intelligent level of meteorological services. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the atmospheric water vapor inversion and meteorological parameter monitoring system of the present invention; Figure 2 A Beidou wide-area atmospheric water vapor inversion and meteorological parameter real-time monitoring method proposed by the present invention Figure 1 Schematic diagram of the composition of the integrated terminal for meteorological element collection and water vapor inversion; Figure 3 A schematic diagram of the system view structure framework of the hardware layer, software layer and expression layer in a Beidou wide-area atmospheric water vapor inversion and meteorological parameter real-time monitoring method proposed in the present invention; Figure 4A block diagram of the software architecture of a Beidou wide-area atmospheric water vapor inversion and meteorological parameter real-time monitoring method proposed by the present invention; Figure 5 A schematic diagram of the PPP data processing flow in a Beidou wide-area atmospheric water vapor inversion and meteorological parameter real-time monitoring method proposed by the present invention; Figure 6 This is a schematic diagram of the data processing flow of the water vapor inversion system in the Beidou wide-area atmospheric water vapor inversion and meteorological parameter real-time monitoring method proposed by the present invention. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not 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.

[0024] Please see attached Figure 1 -Attached Figure 6 The present invention provides a technical solution: a Beidou wide-area atmospheric water vapor inversion and meteorological parameter real-time monitoring method, comprising the following steps: S1: Build an atmospheric water vapor inversion and meteorological parameter real-time monitoring system, such as Figure 1 and Figure 2 As shown in the figure, the construction of each part of the monitoring system needs to be considered from two aspects: hardware and software. The hardware of the monitoring system includes the temperature, humidity and pressure meteorological element acquisition module, Beidou navigation signal receiving and distributed water vapor inversion terminal module, data transmission module, power supply module, data receiving module and computing storage device module. The software mainly includes the precise positioning software based on Beidou navigation signal, the water vapor inversion software based on Beidou navigation signal, and the remote monitoring and product display software. Among them, the water vapor inversion software module based on Beidou navigation signal is divided into distributed water vapor inversion software and centralized water vapor inversion software. S2: Build an integrated terminal for meteorological element collection and water vapor inversion, such as Figure 2 As shown, it consists of four modules, namely, temperature, humidity and pressure meteorological element acquisition module, Beidou navigation signal receiving and distributed water vapor inversion terminal module, data transmission module and power supply module; The temperature, humidity and pressure meteorological element acquisition module mainly collects data on meteorological element parameters, including temperature sensors, relative humidity sensors and air pressure sensors, which respectively realize real-time electronic acquisition of temperature, relative humidity and ground air pressure; The Beidou navigation signal receiving and distributed water vapor inversion terminal module mainly uses Beidou navigation signals to process positioning data, obtain tropospheric delay and invert atmospheric precipitable water. It includes a navigation signal receiving antenna unit, a radio frequency processing unit, a constant temperature crystal oscillator unit and an integrated digital signal processing unit. The integrated digital signal processing unit includes embedded data processing software, namely Beidou / GNSS navigation signal precision positioning software and distributed water vapor inversion software based on navigation signals. The data transmission module mainly realizes the exchange of data streams between different processing modules, including serial port, 4G / 5G mobile Internet, terrestrial Internet and BeiDou-3 short message data transmission protocol; The power supply module is a condition to ensure the continuous data collection of the terminal in the field. It realizes double protection through the power supply of solar panels and batteries and the mains. The combination of solar panels and batteries can effectively realize the field deployment of monitoring points and ensure the field deployment capability of the monitoring terminal. S3: Construct a centralized atmospheric water vapor inversion system, which consists of three modules: data receiving module, centralized water vapor inversion and remote monitoring and product display module, and computing and storage device module; The main function of the data receiving module is to collect and transmit data on the integrated system server side, which mainly includes four ways of data transmission: receiving data directly through the serial port, receiving data through the ground Internet, receiving data through the 4G / 5G mobile Internet, and transmitting data through the BeiDou-3 short message function; The main function of the centralized water vapor inversion module is to realize the centralized management, solution and analysis of data collected by multiple terminals. It includes a database management unit and a centralized water vapor inversion platform, where the centralized water vapor inversion platform includes centralized water vapor inversion software; The remote monitoring module can realize active monitoring and abnormal alarm of terminal operation status, remote configuration of terminal parameters and remote upgrade of terminal software. It is an important module for realizing the interaction between data acquisition terminal and centralized software platform. The product display module is used for intuitive display and analysis of water vapor products, data result storage and management. It includes comprehensive analysis of atmospheric water vapor products and visualization management modules for atmospheric water vapor products, and has log management, user management and system management functions. S4: Build an integrated working system, which consists of two subsystems, namely the distributed water vapor inversion data processing system and the centralized water vapor inversion data processing system, according to the working mode of atmospheric water vapor terminal acquisition and processing application; The water vapor real-time monitoring system composed of two integrated subsystems is divided into three layers, namely data acquisition layer, data processing layer and data output layer; The data collection layer mainly includes data collection terminal equipment and supporting equipment. Whether it is a distributed processing or a centralized processing system, it requires the same set of temperature, humidity and pressure element collection and Beidou navigation signal receiving terminals, and requires the support of power supply modules and data communication modules; The data processing layer is one of the iconic differences between the two. For the distributed water vapor inversion system, its distributed data processing algorithm is used as embedded software and runs in the digital signal processing unit of the Beidou navigation signal receiver, which can realize the real-time calculation of atmospheric precipitable water on the terminal. For the centralized water vapor inversion system, the observation data collected by its terminal equipment is sent to the server of the data receiving module through the data transmission module and the data receiving module for centralized data processing. The data output layer is mainly for the analysis and display of water vapor inversion products. Through comprehensive analysis of the water vapor product results stored in the database management module, the water vapor products and analysis results are displayed in real time in the visualization interface, and the remote monitoring of the terminal is realized through the configuration module of the visualization interface; S5: Build a hardware platform for atmospheric water vapor inversion and meteorological parameter real-time monitoring system, such as Figure 3 As shown in the figure, the hardware platform is mainly composed of a meteorological element acquisition module, a Beidou navigation receiver, a data transmission module and a power supply module. Each module is connected to the processor and exchanges data with the processor through different interfaces. S6: Construct a software platform for atmospheric water vapor inversion and real-time monitoring of meteorological parameters, such as Figure 4 As shown in the figure, the software platform mainly consists of navigation signal single-point precision positioning software, distributed atmospheric water vapor inversion software based on navigation signals, centralized atmospheric water vapor inversion software based on navigation signals, and remote monitoring and product display software. The terminal will visualize the solution results in the atmospheric product display software platform; Navigation signal single-point precision positioning software, which is a pure embedded software, realizes the positioning and solution of navigation signals, completes signal anomaly monitoring, and mainly realizes GNSS positioning functions in three processing modes: single-point positioning of single system and multi-system, precise single-point positioning and RTK with index accuracy; Distributed atmospheric water vapor inversion software based on navigation signals. This software is embedded software. It mainly completes the atmospheric water vapor inversion in the area where the equipment is located, and realizes the function of encoding the original observation data, GNSS positioning results, temperature, humidity and pressure data and terminal operation status and sending them to the command terminal through Beidou short messages; Centralized atmospheric water vapor inversion software based on navigation signals, which is used to receive the original observation values, positioning results, temperature, humidity and pressure data of a single station and atmospheric water vapor inversion results sent by all monitoring equipment, and can realize wide-area atmospheric water vapor inversion and send the results to the database center in real time; Remote monitoring and product display software, which can display the working status of each device in multiple stations. When an abnormality occurs in the equipment, it can quickly locate the fault to facilitate rapid recovery of the system. It is used to monitor the working status of the Beidou signal receiving and water vapor inversion terminals of the entire system. When an abnormality occurs in the equipment, it can quickly locate the fault to facilitate rapid recovery of the system, and realize the display, storage, extraction and management of observation data of each station.

[0025] In the embodiment of the present invention, in step S2, the Beidou navigation signal receiving and distributed water vapor inversion terminal module uses PPP technology for real-time positioning, and calculates and obtains the coordinates and ZTD parameters of the terminal device, such as Figure 5 As shown, the completion process is: S21: The multi-frequency and multi-system observation data are first preprocessed, mainly for gross error elimination and cycle slip detection, and receiver clock jump repair; Cycle slip refers to the phenomenon that the receiver loses signal lock due to radio signal interference during satellite tracking, resulting in a sudden jump in the integer number of carrier phase observation values. The present invention mainly uses the MW combination method for cycle slip detection, and its formula is as follows: ; ; in, and is the carrier frequency of L1 and L2 bands, and is the pseudorange of L1 and L2 bands, is the wide-lane carrier phase observation value, is the wide lane ambiguity, is the wide-lane ambiguity wavelength, is the average value of wide lane ambiguity, is the epoch number; When the receiver clock jump has inconsistent effects on the pseudorange and carrier observation values, it will affect the accuracy of the MW combination detection cycle slip. The clock jump repair formula is as follows: ; In the formula, is the pseudorange, is the carrier phase observation value, To repair the carrier phase observation after the clock jump, is the satellite number, is the number of satellites, is the speed of light, is the coefficient factor, with a value of 1000. is the epoch number, Indicates rounding; S22: The clean observation data obtained are used to construct a PPP positioning model, and the parameters of the pseudorange and carrier observation equations are estimated. The pseudorange and carrier phase observation equations are as follows: ; In the formula, is the pseudorange, is the carrier phase observation value, is the actual distance from the receiver to the satellite, is the speed of light, is the receiver clock error, is the satellite clock error, is the tropospheric delay, is the ionospheric delay, is the integer ambiguity, is the wavelength, is the residual; S23: In order to evaluate the accuracy of parameter estimation, the residuals of the observations are edited in the quality control module to determine whether the residuals exceed the threshold. If an excessive residual is detected, the corresponding satellite observations are removed as gross errors, and the remaining observations are re-solved by the PPP model. The quality control is repeated until the residual editing module is passed. S24: The final PPP positioning algorithm obtains high-precision coordinates, receiver clock errors, tropospheric zenith delays, and ambiguity results. The high-precision ZTD results are used in the high-precision water vapor inversion module.

[0026] In the embodiment of the present invention, in step S4, the water vapor inversion terminal uses Beidou / GNSS solution data and atmospheric element parameters to invert atmospheric precipitable water, such as Figure 6 As shown, the completion process is: S41: Calculate the parameter estimation value of the terminal data using the PPP model, the parameter estimation value includes the station coordinates, clock error, ZTD and ambiguity parameters. This process can obtain the high-precision tropospheric zenith total delay ZTD of each terminal. ZTD mainly consists of two parts: the zenith static delay caused by the neutral atmosphere in the atmosphere and the zenith wet delay ZWD caused by the humid air. S42: Using the air pressure information of the temperature, humidity and pressure meteorological element collection module of each terminal, the zenith static delay ZHD is calculated according to the zenith static delay model. The calculation formula is as follows: ; In the formula, represents the surface air pressure, represents the latitude of the station, Indicates the geodetic height of the measuring station; S43: The high-precision zenith total delay ZTD calculated using PPP technology minus the calculated zenith static delay ZHD is used to obtain the corresponding zenith wet delay ZWD, which is closely related to the water vapor content in the air. The calculation formula is as follows: ; S44: Using the real-time temperature provided by the temperature, humidity and pressure meteorological element collection modules of each terminal, the weighted average temperature is obtained according to the local weighted average calculation model, and the water vapor conversion factor is calculated. The formula is as follows: ; ; ; ; In the formula, is the water vapor pressure at the station in the zenith direction, is the temperature, is the height, is the weighted average temperature, are physical constants, respectively. , , , is the ratio of the molar masses of water vapor to dry air, is the dimensionless conversion factor, is the water vapor gas constant, take , is the density of liquid water; S45: The atmospheric precipitable water PWV is calculated using the zenith wet delay ZWD and the water vapor conversion factor. The formula is as follows: .

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can replace or change the technical solution and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A Beidou wide-area atmospheric water vapor inversion and meteorological parameter real-time monitoring method, characterized in that: The following steps are involved: S1: Construct an atmospheric water vapor inversion and meteorological parameter real-time monitoring system; S2: Build a meteorological element collection and water vapor inversion integrated terminal, which consists of four modules: temperature, humidity and pressure meteorological element collection module, Beidou navigation signal reception and distributed water vapor inversion terminal module, data transmission module and power supply module; S3: Construct a centralized atmospheric water vapor inversion system, which consists of three modules: data receiving module, centralized water vapor inversion and remote monitoring and product display module, and computing and storage device module; S4: Build system integration, which consists of two systems: distributed processing integration system and centralized processing integration system; S5: Build the hardware platform of atmospheric water vapor inversion and meteorological parameter real-time monitoring system. The Beidou signal receiving part collects the original observation data of Beidou, GPS, GLONASS, Galileo and other systems in real time, as well as the temperature, humidity and pressure meteorological elements. S6: Construct a software platform for atmospheric water vapor inversion and real-time monitoring of meteorological parameters, receive satellite real-time precise orbit and precise clock correction products from the Internet or satellite communications, obtain the estimated total zenith delay and zenith wet delay of the terminal device in real time through data preprocessing and precise single-point positioning, calculate the water vapor conversion factor, and finally calculate the atmospheric precipitable water.

2. A Beidou wide-area atmospheric water vapor inversion and meteorological parameter real-time monitoring method according to claim 1, characterized in that: The BeiDou signal receiving part is used to collect the original observation data of BeiDou, GPS, GLONASS and Galileo systems in real time.

3. A Beidou wide-area atmospheric water vapor inversion and meteorological parameter real-time monitoring method according to claim 2, characterized in that: The temperature, humidity and pressure meteorological element acquisition module is used to collect temperature, relative humidity and atmospheric pressure meteorological elements in real time, and the collected meteorological elements are sent to the signal receiving processing and water vapor inversion module of the water vapor inversion terminal.

4. The Beidou wide-area atmospheric water vapor inversion and meteorological parameter real-time monitoring method according to claim 3 is characterized in that: The water vapor inversion module uses Beidou / GNSS original observation data and adopts a data transmission module to receive satellite real-time precise orbit and precise clock correction products from the network or satellite communication, and solves through data preprocessing and precise single-point positioning.

5. The Beidou wide-area atmospheric water vapor inversion and meteorological parameter real-time monitoring method according to claim 1 is characterized in that: The estimated value of the total tropospheric zenith delay and the zenith wet delay of the terminal device are obtained in real time.

6. A Beidou wide-area atmospheric water vapor inversion and meteorological parameter real-time monitoring method according to claim 5, characterized in that: The temperature, humidity and pressure meteorological element acquisition module is used to obtain the real-time temperature, and the weighted average temperature is obtained according to the local weighted calculation model to calculate the water vapor conversion factor.

7. A Beidou wide-area atmospheric water vapor inversion and meteorological parameter real-time monitoring method according to claim 6, characterized in that: The atmospheric precipitable water is calculated by the water vapor conversion factor and the zenith wet delay.

8. The Beidou wide-area atmospheric water vapor inversion and meteorological parameter real-time monitoring method according to claim 7 is characterized in that: For the distributed water vapor inversion system, the atmospheric precipitable water sent by the terminal is directly sent to the data storage management module and visualized in the atmospheric product display software platform.

9. A Beidou wide-area atmospheric water vapor inversion and meteorological parameter real-time monitoring method according to claim 8, characterized in that: For the centralized water vapor inversion system, the Beidou / GNSS observation data and atmospheric element parameters received by the data receiving module are used to perform centralized inversion of water vapor.

10. A Beidou wide-area atmospheric water vapor inversion and meteorological parameter real-time monitoring method according to claim 9, characterized in that: The Beidou / GNSS raw data and meteorological element observation data received by the data receiving module are used to perform data preprocessing and quality control, high-precision water vapor inversion on the server, and finally store, manage and display the products for analysis.

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