Intelligent monitoring device for power supply of ground observation field

Abstract

The utility model provides a ground observation field power supply intelligent monitoring device, and relates to the technical field of ground observation field power supply intelligent monitoring. The ground observation field power supply intelligent monitoring device comprises a main box body, one side in the main box body is provided with a first box body, and the other side in the main box body is provided with a second box body; the first box body is provided by an uninterruptible power supply of a meteorological observation room through a UPS input main air switch and is used for supplying power to various meteorological sensors or instruments of an observation field, and the second box body is provided by a mains supply line of the meteorological observation room through a mains supply input main air switch. According to the intelligent monitoring device for power supply of the ground observation field, power is supplied through the uninterruptible power supply module, the real-time monitoring effect of the equipment state is achieved, the effect of prolonging the service life of a load element is achieved, and the effect of fully discharging lightning current is achieved through the lightning current delay technology of the lightning arrester module; and the use stability is improved while the safety of the electric equipment is ensured.

Description

Technical Field

[0001] The utility model relates to an intelligent monitoring device for power supply of a ground observation field, belonging to the technical field of intelligent monitoring of power supply of a ground observation field. Background Art

[0002] Ground observation sites are important places for the operation of observation equipment. The normal operation of observation equipment provides timely and continuous ground meteorological observation information, playing an important role in disaster prevention and mitigation and meteorological forecast services.

[0003] According to relevant statistics, lightning strikes and power supply anomalies are the main factors causing failures in automatic weather stations. The China Meteorological Administration has implemented a separate business layout for bureaus and stations, and the "Regulations on the Protection of the Meteorological Observation Environment and Facilities" and "Specifications for Ground Meteorological Observations" have put forward strict regulations on the ground meteorological observation environment. Most stations use rural power supply to power their automatic weather station system equipment. However, the following problems exist when using rural power supply:

[0004] 1. When the power grid is insufficient, the power supply department will reduce the voltage. However, the automatic weather station system equipment is located in a remote area, which causes excessive power transmission loss and low voltage. The power grid is too little, causing the load components to not work properly or burn out, resulting in a short service life of the load components.

[0005] 2. Power surges and lightning strikes are relatively frequent. The effective value of the output voltage is higher than 110% of the rated value within a moment (a few milliseconds) and lasts for one or several cycles, which may cause damage to the power supply equipment of the automatic weather station. At present, the distribution box is not equipped with a system to monitor the on-off status of the air switch. Once the air switch trips, the observation equipment will stop working, resulting in the occurrence of observation data loss accidents, making the use of electrical equipment unsafe and unstable. Utility Model Content

[0006] (1) Technical problems solved

[0007] The utility model provides a ground observation field power supply intelligent monitoring device to solve the problems in the prior art of short service life of load elements and insufficient safety and stability of electrical equipment.

[0008] (2) Technical solution

[0009] The utility model is realized by the following technical solutions: a ground observation field power supply intelligent monitoring device, comprising a main box, a first box is provided on one side of the main box, and a second box is provided on the other side of the main box;

[0010] The first box is supplied with power by the uninterruptible power supply of the meteorological observation room through the UPS input main air switch, and is used to power various meteorological sensors or instruments in the observation field. The second box is supplied with power by the mains power line of the meteorological observation room through the mains power input main air switch, and is used to power activities such as equipment maintenance and observation field maintenance. The first box and the second box are connected by wires to form a whole.

[0011] Preferably, the first box back panel is installed with a lightning arrester module, a first air switch assembly, and a terminal assembly.

[0012] Preferably, the second box back panel is installed with a data collector, a protocol converter, a communication module, an uninterruptible power supply module, and a second air switch assembly.

[0013] Preferably, the UPS input main air switch is connected to a lightning arrester module, the lightning arrester module is connected to a first air switch assembly, the first air switch assembly is connected to a wiring terminal assembly, and the wiring terminal assembly is connected to a data collector.

[0014] Preferably, the main main circuit breaker for AC input is connected to the second air switch assembly, the second air switch assembly is connected to the uninterruptible power supply module, the uninterruptible power supply module is connected to the protocol converter, the protocol converter is connected to the communication module, and the communication module is connected to the data collector.

[0015] Preferably, the main box is surrounded by several electrical installation panels, and vertical reinforcement ribs are provided at the connection points of the several electrical installation panels. The first box and the second box are arranged inside the several electrical installation panels.

[0016] The utility model provides a ground observation field power supply intelligent monitoring device, which has the following beneficial effects:

[0017] (1) The intelligent monitoring device for power supply of the ground observation field provides 48 hours of uninterrupted power supply for the data acquisition device, protocol converter and communication module through the uninterruptible power supply module in the event of a power outage, thus achieving real-time monitoring of the equipment status. When the power supply voltage is too low, the voltage is increased in time to avoid damage to the load components caused by low voltage, thereby extending the service life of the load components.

[0018] (2) The intelligent monitoring device for power supply of the ground observation field can achieve the effect of full discharge of lightning current through the lightning current delay technology of the lightning arrester module, avoiding the damage of the power supply equipment of the automatic weather station caused by the instantaneous excessive output voltage, ensuring the safety of electrical equipment while improving the stability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 This is the layout diagram of the first box back panel of the utility model;

[0021] Figure 3 This is the layout diagram of the second box back panel of the utility model;

[0022] Figure 4 This is a topology diagram of the intelligent monitoring system for power supply of the ground observation field of the utility model;

[0023] Figure 5 This is a schematic diagram of the lightning current delay principle of the utility model;

[0024] Figure 6 This is a software flow diagram of the 24-channel AC voltage collector of the present utility model;

[0025] Figure 7 The software process of converting Modbus protocol data into meteorological data format of the utility model;

[0026] Figure 8 This is the terminal wiring diagram side A of the present utility model;

[0027] Figure 9 This is the B side of the terminal wiring diagram of the present invention.

[0028]

Main component symbol description

[0029] 1. Main box; 2. First box; 3. Second box; 4. UPS input main air switch; 5. Lightning arrester module; 6. First air switch assembly; 7. Terminal block assembly; 8. Data collector; 9. Protocol converter; 10. Communication module; 11. Uninterruptible power supply module; 12. Mains input main circuit breaker; 13. Second air switch assembly; 14. Facade reinforcement; 15. Electrical installation panel. DETAILED DESCRIPTION

[0030] The embodiment of the utility model provides an intelligent monitoring device for power supply of a ground observation field.

[0031] See also Figure 1-9 As shown, it includes a main box 1, a first box 2 is provided on one side of the main box 1, and a second box 3 is provided on the other side of the main box 1. It adopts an A and B double box structure, and the back panels of the boxes A and B are arranged as shown in FIG. Figure 2 and Figure 3As shown; the first box 2 is supplied by the uninterruptible power supply of the meteorological observation room through the UPS input main air switch 4, which is used to power various meteorological sensors or instruments in the observation field. The second box 3 is supplied by the mains power line of the meteorological observation room through the mains input main air switch 12, which is used to power activities such as equipment maintenance and observation field maintenance. The first box 2 and the second box 3 are connected by wires to form a whole.

[0032] Please refer to the figure again. It is worth noting that the back panel of the first box 2 is equipped with a lightning arrester module 5, a first air switch assembly 6, and a terminal assembly 7. The back panel of the second box 3 is equipped with a data collector 8, a protocol converter 9, a communication module 10, an uninterruptible power supply module 11, and a second air switch assembly 13. The data collector 8 is the core of the ground observation field power supply intelligent monitoring device. It consists of six parts: analog isolation circuit, analog signal interface, signal conditioning circuit, A / D conversion circuit, FPGA acquisition control unit and data transmission interface. The data collector 8 is a 24-channel AC voltage collector, such as Figure 6 As shown, "Initialization": timer initialization - set the parameters of the timer interrupt, AD interrupt initialization - set the relevant parameters of the AD interrupt, register initialization (assign initial values to the relevant data, intermediate data, and result data storage area);

[0033] "Interrupt judgment?": Enable A / D interrupt of a certain channel. If interrupt occurs, the interrupt channel A / D acquisition is enabled --- interrupt data output, and the function returns after completion.

[0034] "Start AD conversion channel": start the value conversion process of a certain channel. If the conversion is completed, execute the accumulation of the collected results - output the data at the hour, otherwise continue to wait until the conversion is completed;

[0035] According to the provisions of "Ground Meteorological Element Coding and Data Format" (GB / T 33695-2017) on meteorological data, the Modbus protocol is converted into the meteorological data format to enable the access of equipment to the meteorological data platform.

[0036] Its software process is as follows Figure 7 As shown;

[0037] 1. Initialization: preparations for the program to start running (system clock, port, timer, COM port, working parameter initialization);

[0038] 2. Data operation: parse the received communication protocol and perform format conversion;

[0039] 3. Check the working parameters. The parameters used in the program operation need to be checked regularly to determine whether there are any errors.

[0040] 4. COM1\COM2 communication processing: the process of receiving and sending input and output data packets (with different protocol formats).

[0041] Please refer to the figure again. It is worth noting that the UPS input main air switch 4 is connected to the lightning arrester module 5, the lightning arrester module 5 is connected to the first air switch assembly 6, the first air switch assembly 6 is connected to the terminal assembly 7, the terminal assembly 7 is connected to the data collector 8, the main power input main air switch 12 is connected to the second air switch assembly 13, the second air switch assembly 13 is connected to the uninterruptible power supply module 11, the uninterruptible power supply module 11 is connected to the protocol converter 9, the protocol converter 9 is connected to the communication module 10, the communication module 10 is connected to the data collector 8, the principle of the lightning arrester module 5 is as follows Figure 5 As shown, according to the layout requirements for multi-level SPDs in Article 7.3.4 of GB / T31162-2014 "Technical Specifications for Lightning Protection in Ground-Based Meteorological Observation Fields (Rooms)", the line length between voltage-switching SPDs and voltage-limiting SPDs should not be less than 10m. The line between voltage-limiting SPDs should not be less than 5m.

[0042]

[0043] L: inductance of a straight conductor with a circular cross-section [H]; l: conductor length [m]; r: conductor radius [m]; μ0: magnetic permeability of a vacuum, μ0 = 4π10-7 [H / m]. According to the above formula, the inductance values of L1 and L2 are obtained to construct a cascade lightning protection device with lightning delay function.

[0044] When the utility model is in use: the UPS input main air switch 4 of the first box 2 is connected to the main air switch, and after passing through the lightning arrester module 5 and the first air switch component 6, it is connected to the terminal assembly 7. One end of the terminal assembly 7 is connected to the input end of the analog isolation circuit of the data collector 8, and the other end of the terminal assembly 7 is connected to the power supply end of the observation equipment, wherein port 1 of the terminal assembly 7 is connected to the main station equipment, port 2 is connected to the backup station equipment, port 3 is connected to the comprehensive integrated hardware controller, port 4 is connected to the visibility meter, port 5 is connected to the sunshine sensor, port 6 is connected to the weather phenomenon meter, port 7 is connected to the intelligent video weather phenomenon meter, port 8 is connected to the visibility obstacle meter, port 9 is connected to the frozen soil observation meter, port 10 is connected to the radiation observation meter, port 11 is connected to the acid rain (lightning) observation meter, port 12 is connected to the snow depth observation meter, port 13 is spare, port 14 is spare, port 15 is spare, and port 16 is spare. The input end of the data collector 8 is connected to ports 1 to 16 of the terminal assembly 7, and the data After the collector 8 collects the status information of each port, it converts the MODBUS protocol into the meteorological data format through the RS485 communication port and the protocol converter 9. The protocol converter 9 is connected to the communication module 10 to realize remote access to meteorological data of the equipment power supply status, and the platform is monitored in real time. Among them, the communication module 10 is connected to the data port of the protocol converter 9 to form a wide-area data acquisition network. The uninterruptible power supply module 11 provides 48 hours of uninterruptible power supply guarantee for the data collector 8, protocol converter 9, and communication module 10 during power outages, completing the real-time monitoring effect of the equipment status. When the power supply voltage is too low, the voltage is increased in time to avoid damage to the load components caused by low voltage, thereby achieving the effect of extending the service life of the load components. In addition, relying on the lightning current delay technology of the lightning arrester module 5, the lightning current is fully discharged to avoid damage to the power supply equipment of the automatic weather station caused by excessive instantaneous output voltage, thereby ensuring the safety of electrical equipment while improving the stability of use.

[0045] Please refer again Figure 1 As shown, it is worth noting that the main box body 1 is surrounded by several electrical installation panels 15, and vertical reinforcement ribs 14 are provided at the connection points of the several electrical installation panels 15. The first box body 2 and the second box body 3 are arranged inside the several electrical installation panels 15.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A ground observation field power supply intelligent monitoring device, comprising a main box (1), characterized in that: A first box body (2) is provided on one side of the interior of the main box body (1), and a second box body (3) is provided on the other side of the interior of the main box body (1); The first box (2) is supplied with power from the uninterruptible power supply of the meteorological observation room via a UPS input main air switch (4), and is used to power various meteorological sensors or instruments in the observation field. The second box (3) is supplied with power from the mains power line of the meteorological observation room via a mains power input main air switch (12), and is used to power activities such as equipment maintenance and observation field maintenance. The first box (2) and the second box (3) are connected by a wire to form a whole.

2. The intelligent monitoring device for power supply of a ground observation field according to claim 1, characterized in that: The back panel of the first box (2) is equipped with a lightning arrester module (5), a first air switch assembly (6), and a terminal assembly (7).

3. The intelligent monitoring device for power supply of a ground observation field according to claim 1, characterized in that: The back panel of the second box (3) is equipped with a data collector (8), a protocol converter (9), a communication module (10), an uninterruptible power supply module (11), and a second air switch assembly (13).

4. The intelligent monitoring device for power supply of a ground observation field according to claim 1, characterized in that: The UPS input main air switch (4) is connected to the lightning arrester module (5), the lightning arrester module (5) is connected to the first air switch assembly (6), the first air switch assembly (6) is connected to the wiring terminal assembly (7), and the wiring terminal assembly (7) is connected to the data collector (8).

5. The intelligent monitoring device for power supply of a ground observation field according to claim 1, characterized in that: The main main circuit breaker (12) for main power input is connected to a second air switch assembly (13), the second air switch assembly (13) is connected to an uninterruptible power supply module (11), the uninterruptible power supply module (11) is connected to a protocol converter (9), the protocol converter (9) is connected to a communication module (10), and the communication module (10) is connected to a data collector (8).

6. The intelligent monitoring device for power supply of a ground observation field according to claim 1, characterized in that: The main box (1) is surrounded by a plurality of electrical installation panels (15), and vertical reinforcement ribs (14) are provided at the connection points of the plurality of electrical installation panels (15). The first box (2) and the second box (3) are arranged inside the plurality of electrical installation panels (15).

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