Multifunctional telemetering terminal system and method for automatically monitoring rainfall station

Abstract

The invention discloses a multifunctional telemetering terminal system and method for automatically monitoring a rainfall station. The system comprises a rainfall collection module, a data sending module, a programming module, a measurement calling module, a monitoring and alarming module, a data analysis module, a visualization module and a reporting module. The automatic rainfall monitoring station comprises a remote terminal unit (RTU), a rainfall sensor, a communication terminal, a power supply system and a lightning protection system. The method realizes automatic acquisition and automatic transmission of rainfall information. According to the invention, the solar floating charge storage battery is adopted for power supply, and the inherent contradiction between the sensitivity and the measurement precision of the tipping bucket rain gauge is improved through the resolution of the rain sensor; an original observation field can be utilized, and a station without a rainfall observation field is monitored by adopting an integrated structure frame rod; lightning protection and grounding ensure that equipment can work normally and stably in the field, and direct lightning and inductive lightning are prevented; the telemetering terminal realizes multiple functions and perfects the lack of functions of the current rainfall monitoring station.

Description

Technical Field

[0001] The invention relates to the field of rainfall monitoring, and in particular to a multifunctional automatic rainfall monitoring station telemetry terminal system and method. Background Art

[0002] Rainfall monitoring stations can be widely used in meteorology, flood control, agriculture, hydrology and water conservancy, environmental protection, highways, airports and ports. They can provide original data for meteorological stations, hydrological stations, agriculture and forestry, national defense, field monitoring stations and other relevant departments to measure parameters such as precipitation, precipitation intensity, and precipitation time; they can also provide real-time data with reference value for flood control, water supply scheduling, power stations, and reservoir water management.

[0003] Rainfall monitoring is usually achieved through rain gauges, but current rainfall monitoring stations cannot automatically collect and transmit rainfall through telemetry terminals. In addition, the resolution of rainfall sensors is fixed, and data collection is inaccurate. Telemetry stations are generally outdoors and are prone to direct and induced lightning strikes, which can damage terminal equipment and information collection systems. If there is no station to build a rainfall observation field, it cannot be installed. Summary of the invention

[0004] The purpose of the present invention is to propose a multifunctional automatic monitoring rainfall station telemetry terminal system and method in view of the above technical problems.

[0005] A multifunctional automatic monitoring rainfall station telemetry terminal system, including rainfall collection module, data transmission module, programming module, call module, monitoring and alarm module, data analysis module, visualization module, and report module; The rainfall collection module collects rainfall parameters automatically and regularly or in real time, and sets the sampling interval; The data transmission module transmits data through the primary and standby channels in a timing or event self-reporting manner, and automatically switches to the second channel for transmission when the first transmission channel is blocked; The programming module is used for on-site or remote programming, setting parameters, changing paths, and reading data; The test call module responds to the test call, receives the test call instruction from the measurement and control center, and sends the current value or the past recorded value or all the stored data through a specified channel or a specified path according to the instruction requirement; The monitoring and alarm module monitors various parameters in real time through IoT sensors, transmits data to the telemetry terminal RTU, and sends an alarm message if the data exceeds a preset threshold; The data analysis module predicts the operating status of the equipment, analyzes energy consumption and operating efficiency, and discovers potential problems in advance; The visualization module visualizes the results of the data analysis module; The reporting module provides working condition reports, safety reports, and heavy rain reports; The automatic monitoring rain gauge station is implemented based on the automatic monitoring rain gauge station telemetry terminal system, and the automatic monitoring rain gauge station includes a telemetry terminal RTU, a rainfall sensor, a communication terminal, a power supply system, and a lightning protection system; The telemetry terminal collects rainfall data from the rainfall sensor and transmits it via the communication terminal; The power supply system includes solar panels, lead-acid batteries, and a solar charge controller; The communication terminal includes a communication antenna; The lightning protection system includes a lightning rod, a down conductor and a grounding grid.

[0006] Further, a multifunctional automatic monitoring rain gauge station telemetry terminal system, the rain gauge sensor is arranged on the top of the bracket, the bracket is fixed on the cast-in-place bracket by screws, the telemetry terminal RTU is arranged in the integrated field chassis, the solar panel is arranged on the integrated field chassis, and the installation direction is 30°~45° due south; The power supply system supplies power to the telemetry terminal, the communication terminal and the lightning protection system respectively.

[0007] Further, a multifunctional automatic monitoring rainfall station telemetry terminal system, the communication antenna and the integrated field chassis are located in a safe zone below the 45° angle of the lightning rod, and the grounding resistance of the ground grid is <10Ω index; The external signal transmission cables of the integrated field chassis room are all shielded cables, the cables are sheathed with Φ50 galvanized pipes and buried in trenches to prevent data signal lines from attracting lightning; The telemetry terminal RTU is provided with a signal lightning arrester at the connection end with the signal cable. The power line adopts a three-core cable, which is connected to the ground grid at both ends of the power bus, and the cable shielding layer of the communication bus is connected to the ground grid at both ends.

[0008] Further, a multifunctional automatic monitoring rainfall station telemetry terminal system, the grounding grid includes 8 grounding bodies, each grounding body is made of 50×50×5 galvanized angle steel, 1.5m long, and the galvanized angle steel is vertically drilled and buried underground; The top of the galvanized angle steel is connected with 40×4 galvanized flat steel, the buried depth of the galvanized flat steel is not less than 80cm, and the spacing is not less than 50cm; The grounding body is processed in a straight line shape. After assembly, each connection point of the grounding body is fully welded, and the grounding resistance is less than 4Ω, which can be relaxed to 10Ω under special terrain conditions.

[0009] Furthermore, a multifunctional automatic monitoring rainfall station telemetry terminal system, the rainfall sensor is a tipping bucket rain gauge that realizes the automatic data transmission function, and the resolution of the rainfall sensor is selected as: In areas where the annual rainfall is less than 400 mm, the 0.2 mm resolution standard is used; In areas with annual rainfall of 400-800 mm, a resolution standard of 0.5 mm is used; When the annual rainfall in the area is greater than 800 mm, the 1.0 mm resolution standard is used.

[0010] Further, a multifunctional automatic monitoring rainfall station telemetry terminal system, the telemetry terminal RTU includes a master-slave mode and a broadcast mode; In the master-slave mode, one device acts as the host and the other devices act as slaves, which can only receive and send data to the host. This mode is suitable for scenarios that require precise control and security. In the broadcast mode, all devices can receive and send data, which is suitable for scenarios where information needs to be transmitted quickly.

[0011] Further, a multifunctional automatic monitoring rainfall station telemetry terminal system, the telemetry terminal RTU is provided with two RS485 / RS232 communication interfaces; The communication interfaces respond to the host call respectively, and the input and output of the communication interfaces are isolated by a photoelectric isolation device; The initial default serial port communication baud rate of the communication interface is 9600bps, 8 data bits, 1 stop bit, and no check; The serial communication baud rate of the communication interface can also be selected from 110bps, 300bps, 600bps, 1200bps, 2400bps, 4800bps, 9600bps, and 14400bps.

[0012] A multifunctional method for automatically monitoring remote sensing of a rain gauge station comprises the following sub-steps: S1: The telemetry terminal RTU collects the instrument data of the rainfall sensor, and after logical processing, sends it to the user's set mobile phone number via SMS or to the designated cloud platform server via the data network; S2: The cloud platform server identifies the relationship between the device and the user based on the unique ID of the device, and pushes the cloud data to the device bound to the user; S3: The bound device reads the sensor data, performs logical processing on the data, and transmits the processed data to the cloud platform server via SMS or 4G wireless network; S4: The telemetry terminal RTU receives the instruction from the cloud platform server, performs logical processing, and drives the IO device; S5: The telemetry terminal RTU accesses the cloud platform server, sets the server target address in the telemetry terminal RTU, and the telemetry terminal RTU actively initiates a connection; S6: The cloud platform server sets the telemetry terminal RTU parameters, receives the data sent by the telemetry terminal RTU, processes the data according to the rules, stores it in the database, and pushes it to the user.

[0013] The beneficial effects of the present invention are as follows: through a multifunctional automatic monitoring rainfall station telemetry terminal system and method, powered by solar floating battery, automatic collection and transmission of rainfall information can be realized; through the resolution of the rainfall sensor, the inherent contradiction between the sensitivity and measurement accuracy of the tipping bucket rain gauge is improved; the original observation field can be utilized, and the station without a rainfall observation field can be monitored by an integrated structure pole; lightning protection and grounding can ensure that the equipment can work normally and stably in the field to prevent direct lightning and induced lightning; the telemetry terminal realizes multi-functions, and improves the lack of functions of the current monitoring rainfall station. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the telemetry terminal.

[0015] Figure 2 It is a structural diagram of the telemetry terminal port.

[0016] Figure 3 It is a structural diagram of the grounding body combination. DETAILED DESCRIPTION

[0017] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings.

[0018] As attached Figure 1 As shown, a multifunctional automatic monitoring rainfall station telemetry terminal system includes a rainfall collection module, a data transmission module, a programming module, a call module, a monitoring and alarm module, a data analysis module, a visualization module, and a report module; The rainfall collection module collects rainfall parameters automatically and regularly or in real time, and sets the sampling interval; The data transmission module transmits data through the primary and standby channels in a timing or event self-reporting manner, and automatically switches to the second channel for transmission when the first transmission channel is blocked; The programming module is used for on-site or remote programming, setting parameters, changing paths, and reading data; The test call module responds to the test call, receives the test call instruction from the measurement and control center, and sends the current value or the past recorded value or all the stored data through a specified channel or a specified path according to the instruction requirement; The monitoring and alarm module monitors various parameters in real time through IoT sensors, transmits data to the telemetry terminal RTU, and sends an alarm message if the data exceeds a preset threshold; The data analysis module predicts the operating status of the equipment, analyzes energy consumption and operating efficiency, and discovers potential problems in advance; The visualization module visualizes the results of the data analysis module; The reporting module provides working condition reports, safety reports, and heavy rain reports; The automatic monitoring rain gauge station is implemented based on the automatic monitoring rain gauge station telemetry terminal system, and the automatic monitoring rain gauge station includes a telemetry terminal RTU, a rainfall sensor, a communication terminal, a power supply system, and a lightning protection system; The telemetry terminal collects rainfall data from the rainfall sensor and transmits it via the communication terminal; The power supply system includes solar panels, lead-acid batteries, and a solar charge controller; The communication terminal includes a communication antenna; The lightning protection system includes a lightning rod, a down conductor and a grounding grid.

[0019] Further, a multifunctional automatic monitoring rain gauge station telemetry terminal system, the rain gauge sensor is arranged on the top of the bracket, the bracket is fixed on the cast-in-place bracket by screws, the telemetry terminal RTU is arranged in the integrated field chassis, the solar panel is arranged on the integrated field chassis, and the installation direction is 30°~45° due south; The power supply system supplies power to the telemetry terminal, the communication terminal and the lightning protection system respectively.

[0020] Further, a multifunctional automatic monitoring rainfall station telemetry terminal system, the communication antenna and the integrated field chassis are located in a safe zone below the 45° angle of the lightning rod, and the grounding resistance of the ground grid is <10Ω index; The external signal transmission cables of the integrated field chassis room are all shielded cables, the cables are sheathed with Φ50 galvanized pipes and buried in trenches to prevent data signal lines from attracting lightning; The telemetry terminal RTU is provided with a signal lightning arrester at the connection end with the signal cable. The power line adopts a three-core cable, which is connected to the ground grid at both ends of the power bus, and the cable shielding layer of the communication bus is connected to the ground grid at both ends.

[0021] As attached Figure 3 As shown, a multifunctional automatic monitoring rainfall station telemetry terminal system, the grounding grid includes 8 grounding bodies, each grounding body is made of 50×50×5 galvanized angle steel, 1.5m long, and the galvanized angle steel is vertically drilled and buried underground; The top of the galvanized angle steel is connected with 40×4 galvanized flat steel, the buried depth of the galvanized flat steel is not less than 80cm, and the spacing is not less than 50cm; The grounding body is processed in a straight line shape. After assembly, each connection point of the grounding body is fully welded, and the grounding resistance is less than 4Ω, which can be relaxed to 10Ω under special terrain conditions.

[0022] Furthermore, a multifunctional automatic monitoring rainfall station telemetry terminal system, the rainfall sensor is a tipping bucket rain gauge that realizes the automatic data transmission function, and the resolution of the rainfall sensor is selected as: In areas where the annual rainfall is less than 400 mm, the 0.2 mm resolution standard is used; In areas with annual rainfall of 400-800 mm, a resolution standard of 0.5 mm is used; When the annual rainfall in the area is greater than 800 mm, the 1.0 mm resolution standard is used.

[0023] Further, a multifunctional automatic monitoring rainfall station telemetry terminal system, the telemetry terminal RTU includes a master-slave mode and a broadcast mode; In the master-slave mode, one device acts as the host and the other devices act as slaves, which can only receive and send data to the host. This mode is suitable for scenarios that require precise control and security. In the broadcast mode, all devices can receive and send data, which is suitable for scenarios where information needs to be transmitted quickly.

[0024] Further, a multifunctional automatic monitoring rainfall station telemetry terminal system, the telemetry terminal RTU is provided with two RS485 / RS232 communication interfaces; The communication interfaces respond to the host call respectively, and the input and output of the communication interfaces are isolated by a photoelectric isolation device; The initial default serial port communication baud rate of the communication interface is 9600bps, 8 data bits, 1 stop bit, and no check; The serial communication baud rate of the communication interface can also be selected from 110bps, 300bps, 600bps, 1200bps, 2400bps, 4800bps, 9600bps, and 14400bps.

[0025] A multifunctional method for automatically monitoring remote sensing of a rain gauge station comprises the following sub-steps: S1: The telemetry terminal RTU collects the instrument data of the rainfall sensor, and after logical processing, sends it to the user's set mobile phone number via SMS or to the designated cloud platform server via the data network; S2: The cloud platform server identifies the relationship between the device and the user based on the unique ID of the device, and pushes the cloud data to the device bound to the user; S3: The bound device reads the data from the sensor, performs logical processing on the data, and transmits the processed data to the cloud platform server via SMS or 4G wireless network; S4: The telemetry terminal RTU receives the instructions from the cloud platform server, performs logical processing, and then drives the IO device; S5: The telemetry terminal RTU accesses the cloud platform server, sets the server target address in the telemetry terminal RTU, and the telemetry terminal RTU initiates a connection actively; S6: The cloud platform server sets the parameters of the telemetry terminal RTU, receives the data sent by the telemetry terminal RTU, processes the data according to the rules, stores it in the database, and pushes it to the user.

[0026] Specific Embodiment 1 Site Selection of Automatic Rainfall Monitoring Station 1. The observation site should avoid strong wind areas, and its surrounding should be open and flat, without being affected by sudden terrain changes, trees, buildings, soot, etc.; 2. When the observation site cannot completely avoid the influence of obstacles such as buildings and trees, it is required that the distance between the rain gauge and the edge of the obstacle is at least twice the height of the obstacle; 3. In mountainous areas, the observation site should not be set on a steep slope or in a canyon, and a relatively flat site should be selected; 4. When installing a pole-type rain gauge at an obstacle, it should be set in the side wind area where the local prevailing wind direction passes through the obstacle during the rainy season, and the distance between the pole position and the edge of the obstacle is at least 1.5 times the height of the obstacle.

[0027] Specific Embodiment 2 Keyboard Operations of Telemetry Terminal The telemetry terminal machine is equipped with a 2.8-inch color TFT liquid crystal display with a resolution of 320*240 and a 9-key multifunctional keyboard, which can operate the device arbitrarily without connecting an external PC, being convenient and fast, as shown in Table 1.

[0028] Table 1 Keyboard Operations of Telemetry Terminal

[0029] Specific Embodiment 3 Acquisition Parameter Settings of Telemetry Terminal According to the SCSW protocol rules, the following methods are used to report the water levels of sections A, B, and C: 1. When 0 < water level value < section A: Report at the Ping'an report interval.

[0030] 2. When section A <= water level value < section B: Report at the section A interval.

[0031] 3. When section B <= water level value < section C: Report at the section B interval.

[0032] 4. When section C <= water level value: Report at the section C interval.

[0033] Table 2 Collection parameter settings of telemetry terminal

[0034] Specific embodiment 4: Port parameters of telemetry terminal As attached Figure 2 As shown, it is mainly used for the configuration of peripheral data acquisition ports. This machine has 3 communication ports, 2 analog ports and 1 rainfall port, as shown in Table 3: Table 3 Port parameters of telemetry terminal

[0035] Each COM port supports up to 4 sensor devices at the same time, but the communication methods of the 4 devices must be consistent and the addresses must be different. The same ANL port does not support multiple sensor devices, and each ANL port can only connect to 1 device.

[0036] This solution uses a multifunctional automatic monitoring rainfall station telemetry terminal system and method, which is powered by solar floating battery, to achieve automatic collection and transmission of rainfall information; improves the inherent contradiction between the sensitivity and measurement accuracy of the tipping bucket rain gauge through the resolution of the rainfall sensor; can utilize the original observation field, and use an integrated structure pole to monitor stations that do not have a rainfall observation field; lightning protection and grounding ensure that the equipment can work normally and stably in the field to prevent direct lightning and induced lightning; the telemetry terminal is multifunctional, which improves the lack of functions of the current monitoring rainfall station.

[0037] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A multifunctional automatic monitoring rainfall station telemetry terminal system, characterized in that: It includes rainfall collection module, data transmission module, programming module, call module, monitoring and alarm module, data analysis module, visualization module and report module; The rainfall collection module collects rainfall parameters automatically and regularly or in real time, and sets the sampling interval; The data transmission module transmits data through the primary and standby channels in a timing or event self-reporting manner, and automatically switches to the second channel for transmission when the first transmission channel is blocked; The programming module is used for on-site or remote programming, setting parameters, changing paths, and reading data; The test call module responds to the test call, receives the test call instruction from the measurement and control center, and sends the current value or the past recorded value or all the stored data through a specified channel or a specified path according to the instruction requirement; The monitoring and alarm module monitors various parameters in real time through IoT sensors, transmits data to the telemetry terminal RTU, and sends an alarm message if the data exceeds a preset threshold; The data analysis module predicts the operating status of the equipment, analyzes energy consumption and operating efficiency, and discovers potential problems in advance; The visualization module visualizes the results of the data analysis module; The reporting module provides working condition reports, safety reports, and heavy rain reports; The automatic monitoring rain gauge station is implemented based on the automatic monitoring rain gauge station telemetry terminal system, and the automatic monitoring rain gauge station includes a telemetry terminal RTU, a rainfall sensor, a communication terminal, a power supply system, and a lightning protection system; The telemetry terminal collects rainfall data from the rainfall sensor and transmits it via the communication terminal; The power supply system includes solar panels, lead-acid batteries, and a solar charge controller; The communication terminal includes a communication antenna; The lightning protection system includes a lightning rod, a down conductor and a grounding grid.

2. A multifunctional automatic monitoring rainfall station telemetry terminal system according to claim 1, characterized in that: The rain sensor is arranged on the top of the bracket, the bracket is fixed on the cast-in-place bracket by screws, the telemetry terminal RTU is arranged in the integrated field chassis, the solar panel is arranged on the integrated field chassis, and the installation direction is 30°~45° due south; The power supply system supplies power to the telemetry terminal, the communication terminal and the lightning protection system respectively.

3. A multifunctional automatic monitoring rainfall station telemetry terminal system according to claim 2, characterized in that: The communication antenna and integrated field chassis are located in the safe zone below the 45° angle of the lightning rod, and the grounding resistance of the ground grid is less than 10Ω; The external signal transmission cables of the integrated field chassis room are all shielded cables, the cables are sheathed with Φ50 galvanized pipes and buried in trenches to prevent the data signal lines from attracting lightning; The telemetry terminal RTU is provided with a signal lightning arrester at the connection end with the signal cable. The power line adopts a three-core cable, which is connected to the ground grid at both ends of the power bus, and the cable shielding layer of the communication bus is connected to the ground grid at both ends.

4. A multifunctional automatic monitoring rainfall station telemetry terminal system according to claim 2, characterized in that: The grounding grid includes 8 grounding bodies, each of which is made of 50×50×5 galvanized angle steel, 1.5m long, and the galvanized angle steel is vertically drilled and buried underground; The top of the galvanized angle steel is connected with 40×4 galvanized flat steel, the buried depth of the galvanized flat steel is not less than 80cm, and the spacing is not less than 50cm; The grounding body is processed in a straight line shape. After assembly, each connection point of the grounding body is fully welded, and the grounding resistance is less than 4Ω, which can be relaxed to 10Ω under special terrain conditions.

5. A multifunctional automatic monitoring rainfall station telemetry terminal system according to claim 1, characterized in that: The rain sensor is a tipping bucket rain gauge that realizes the automatic data transmission function. The resolution of the rain sensor is selected as follows: In areas where the annual rainfall is less than 400 mm, the 0.2 mm resolution standard is used; In areas with annual rainfall of 400-800 mm, a resolution standard of 0.5 mm is used; When the annual rainfall in the area is greater than 800 mm, the 1.0 mm resolution standard is used.

6. A multifunctional automatic monitoring rainfall station telemetry terminal system according to claim 1, characterized in that: The telemetry terminal RTU includes a master-slave mode and a broadcast mode; In the master-slave mode, one device acts as the host and the other devices act as slaves, which can only receive and send data to the host. This mode is suitable for scenarios that require precise control and security. In the broadcast mode, all devices can receive and send data, which is suitable for scenarios where information needs to be transmitted quickly.

7. A multifunctional automatic monitoring rainfall station telemetry terminal system according to claim 6, characterized in that: The telemetry terminal RTU is provided with two RS485 / RS232 communication interfaces; The communication interfaces respond to the host call respectively, and the input and output of the communication interfaces are isolated by a photoelectric isolation device; The initial default serial port communication baud rate of the communication interface is 9600bps, 8 data bits, 1 stop bit, and no check; The serial communication baud rate of the communication interface can also be selected from 110bps, 300bps, 600bps, 1200bps, 2400bps, 4800bps, 9600bps, and 14400bps.

8. A multifunctional automatic monitoring rain gauge remote sensing method, implemented based on a multifunctional automatic monitoring rain gauge remote sensing terminal system according to any one of claims 1 to 7, characterized in that: It includes the following sub-steps: S1: The telemetry terminal RTU collects the instrument data of the rainfall sensor, and after logical processing, sends it to the user's set mobile phone number via SMS or to the designated cloud platform server via the data network; S2: The cloud platform server identifies the relationship between the device and the user based on the unique ID of the device, and pushes the cloud data to the device bound to the user; S3: The bound device reads the sensor data, performs logical processing on the data, and transmits the processed data to the cloud platform server via SMS or 4G wireless network; S4: The telemetry terminal RTU receives the instruction from the cloud platform server, performs logical processing, and drives the IO device; S5: The telemetry terminal RTU accesses the cloud platform server, sets the server target address in the telemetry terminal RTU, and the telemetry terminal RTU actively initiates a connection; S6: The cloud platform server sets the telemetry terminal RTU parameters, receives the data sent by the telemetry terminal RTU, processes the data according to the rules, stores it in the database, and pushes it to the user.

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