Sulfur hexafluoride gas pressure monitoring and early warning system and method

Abstract

The invention relates to the technical field of electric power, in particular to a sulfur hexafluoride gas pressure monitoring and early warning system and method. In the system, a pressure monitoring assembly is connected with a front-end communication terminal through an RS485 converter, the front-end communication terminal, a monitoring and early warning server side and a client terminal are sequentially connected, and the pressure monitoring assembly collects real-time gas density, pressure and temperature data of the sulfur hexafluoride gas insulation equipment and performs signal conversion through the RS485 converter; after being sent to the front-end communication terminal, the data are encrypted and sent; the monitoring and early warning server side analyzes and processes the real-time data by using pre-stored temperature and pressure deviation value corresponding data, a preset equipment pressure threshold value and constant temperature data, and sends a result to the client terminal; the photovoltaic power supply assembly is connected with the pressure monitoring assembly, the RS485 converter and the front-end communication terminal. Compared with the prior art, the method has the advantages that the timeliness and reliability of monitoring and maintenance of the sulfur hexafluoride gas insulation equipment are improved, and the like.

Description

Technical Field

[0001] The present invention relates to the field of electric power technology, and in particular to a sulfur hexafluoride gas pressure monitoring and early warning system and method. Background Art

[0002] Sulfur hexafluoride is an inorganic compound with the chemical formula SF6. It is a colorless, odorless, non-toxic, non-flammable, stable gas at room temperature and pressure. Sulfur hexafluoride is widely used as an insulating medium for outdoor electrical equipment in high-voltage substations. The role of sulfur hexafluoride gas in high-voltage electrical equipment is arc extinguishing and insulation. The reduction in the density of sulfur hexafluoride gas in outdoor electrical equipment in high-voltage substations will lead to the loss of insulation and arc extinguishing performance, seriously affecting the safe operation of the equipment.

[0003] At present, the gas density, pressure and temperature values ​​in the outdoor sulfur hexafluoride gas insulation equipment of high-voltage substations are sent to the user receiving end through a public base station. Manual statistics are regularly performed to determine whether the sulfur hexafluoride gas insulation equipment needs to be supplemented with gas or whether the gas density is too low to affect the safe operation of electrical equipment. This results in low timeliness of early warning, and there is a risk of data leakage in the wireless data network transmission of public base stations.

[0004] Therefore, in order to improve the monitoring and maintenance of sulfur hexafluoride, how to improve the timeliness of early warning while reducing the risk of data leakage has become a problem that needs to be solved in this field. Summary of the invention

[0005] The purpose of the present invention is to overcome the defects of the above-mentioned prior art in the hysteresis of sulfur hexafluoride pressure monitoring and early warning and the risk of leakage in data transmission, and to provide a sulfur hexafluoride gas pressure monitoring and early warning system and method. By encrypting the Internet of Things to transmit the monitoring data of sulfur hexafluoride pressure to the server platform in real time, the real-time performance of sulfur hexafluoride pressure monitoring and early warning can be effectively improved and the risk of data transmission leakage can be reduced.

[0006] The purpose of the present invention can be achieved by the following technical solutions: According to a first aspect of the present invention, a sulfur hexafluoride gas pressure monitoring and early warning system is provided, which is used to monitor the operating status of sulfur hexafluoride gas insulation equipment and issue a real-time early warning, comprising a pressure monitoring component, a photovoltaic power supply component, an RS485 converter, a front-end communication terminal, a monitoring and early warning server and a client terminal, wherein the pressure monitoring component is connected to the front-end communication terminal via the RS485 converter, and the front-end communication terminal, the monitoring and early warning server and the client terminal are connected in sequence; the pressure monitoring component collects real-time gas density, pressure value and temperature data of the sulfur hexafluoride gas insulation equipment, and sends the data signal to the front-end communication terminal after the data signal conversion via the RS485 converter; the front-end communication terminal encrypts the real-time data after the signal conversion and sends it to the monitoring and early warning server; the monitoring and early warning server uses the pre-stored temperature and pressure deviation value corresponding data, the preset equipment pressure threshold and the constant temperature data to analyze and process the encrypted and sent real-time data, and sends the analysis and processing results to the client terminal, wherein the analysis and processing results include early warning information; the photovoltaic power supply component is respectively connected to the pressure monitoring component, the RS485 converter and the front-end communication terminal for power supply.

[0007] As a preferred technical solution, the pressure monitoring assembly includes at least one pressure sensor, at least one temperature sensor and at least one gas density transmitter, which are respectively installed on the sulfur hexafluoride gas insulation equipment.

[0008] As a preferred technical solution, the photovoltaic power supply component includes a photovoltaic panel, a photovoltaic inverter, a battery, a charging control unit and a discharging control unit. The battery is respectively connected to the charging control unit and the discharging control unit. The charging control unit is connected to the photovoltaic panel through the photovoltaic inverter. The discharging control unit is respectively connected to the pressure monitoring component, the RS485 converter and the front-end communication terminal.

[0009] As a preferred technical solution, the charging control unit includes a charging controller and a battery monitor connected to each other.

[0010] As a preferred technical solution, the front-end communication terminal includes a 4G encrypted Internet of Things dial-up module, and transmits the real-time gas density, pressure value and temperature data encrypted by the front-end communication terminal to the monitoring and early warning server through the VPDN private network.

[0011] As a preferred technical solution, the monitoring and early warning server end includes a data processing unit, a data analysis unit and an early warning unit connected in sequence, the data processing unit pre-stores data corresponding to temperature and pressure deviation values, preset equipment pressure thresholds and constant temperature data, receives real-time gas density, pressure value and temperature data of sulfur hexafluoride gas insulation equipment encrypted and sent from the front-end communication terminal, and sends them to the data analysis unit; the data analysis unit uses the data corresponding to temperature and pressure deviation values, the preset equipment pressure threshold and constant temperature data and the real-time gas density, pressure value and temperature data to calculate the actual measured pressure value at the daily constant monitoring temperature, and when the actual measured pressure value at the daily constant monitoring temperature is less than the preset equipment pressure threshold, an alarm signal is sent to the early warning unit; the early warning unit is connected to the client terminal, receives the alarm signal and sends the alarm information to the client terminal.

[0012] As a preferred technical solution, the calculation process of the actual measured pressure value at the daily constant monitoring temperature specifically includes: substituting the real-time measured temperature value into the corresponding data of the temperature and pressure deviation to obtain the pressure deviation value of the actual measured temperature; calculating the actual measured pressure value at the constant monitoring temperature based on the pressure deviation value and the preset constant temperature data; and using the average calculation method to calculate the actual measured pressure value at the daily constant monitoring temperature.

[0013] As a preferred technical solution, the data analysis unit is also used to determine the gas replenishment date, and the process of determining the gas replenishment date specifically includes: based on the actual measured pressure value at the constant monitoring temperature of each day, selecting the date with the highest pressure value most recently distanced to the current date as the previous gas replenishment date; recording the difference between the actual measured pressure value at the constant monitoring temperature of the current date and the actual measured pressure value at the constant monitoring temperature of the previous gas replenishment date as the gas leakage flow, and obtaining the time difference between the current date and the previous gas replenishment date; based on the time difference, the gas leakage flow and the preset equipment pressure threshold, using the curve fitting method to determine the next preparatory gas replenishment date.

[0014] As a preferred technical solution, the client terminal includes an input end and an output end. The client terminal sends the preset equipment pressure threshold and constant temperature data to the monitoring and early warning server end through the input end, and the output end displays the collected real-time gas density, pressure value and temperature data, and displays the preparation gas replenishment date and the actual measured pressure value curve trend chart under the recent daily constant monitoring temperature.

[0015] According to a second aspect of the present invention, there is provided a sulfur hexafluoride gas pressure monitoring and early warning method implemented based on the system, comprising the following steps: obtaining real-time gas density, pressure value and temperature data of sulfur hexafluoride gas insulation equipment; converting the real-time gas density, pressure value and temperature data into data signals and then encrypting and transmitting them; analyzing and processing the encrypted and transmitted real-time data using pre-stored temperature and pressure deviation value corresponding data, preset equipment pressure threshold and constant temperature data; and sending an alarm signal when the analysis and processing result meets the preset conditions.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The system provided by the present invention uses a pressure monitoring component to collect gas density, pressure and temperature data of sulfur hexafluoride gas insulation equipment in real time, uses the real-time data as the data source of the monitoring and early warning server, builds a special monitoring platform, realizes real-time monitoring and analysis of sulfur hexafluoride density, pressure and temperature, and performs intelligent analysis on the collected real-time gas data and then sends the analysis results or early warning information to the equipment manager, so that the equipment manager can monitor the sulfur hexafluoride gas insulation equipment in real time and issue early warning prompts according to the early warning values ​​set by the equipment manager, which can effectively improve the timeliness and reliability of monitoring and maintenance of sulfur hexafluoride gas insulation equipment; 2. The present invention converts the gas density, pressure and temperature data of the sulfur hexafluoride gas insulation equipment collected in real time into data signals through the RS-485 protocol and sends them to the front-end communication terminal, which can realize long-distance, high-speed and reliable data transmission; 3. The front-end communication terminal of the present invention has a built-in 4G encrypted IoT dial-up module, which transmits the encrypted real-time gas density, pressure value and temperature data to the monitoring and early warning server through the VPDN private network, which can effectively reduce the risk of leakage during data transmission; 4. The present invention realizes monitoring and analysis of the real-time collection of gas density, pressure and temperature data of sulfur hexafluoride gas insulation equipment through the monitoring and early warning server. The monitoring and early warning server performs intelligent analysis on the collected data and then pushes the analysis and processing results including early warning information to the equipment administrator to ensure the reliability of the early warning information; 5. The present invention uses photovoltaic power supply components to power the pressure monitoring components, RS485 converters and front-end communication terminals, which can avoid the production safety hazards caused by laying mains power supply and data transmission cables when the sulfur hexafluoride gas insulation equipment is applied near high-voltage live equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the sulfur hexafluoride gas pressure monitoring and early warning system in Example 1 of the present invention; Figure 2This is a schematic diagram of the structure of the monitoring and early warning server in Example 2 of the present invention; Figure 3 This is a flow chart of analyzing and processing data on the monitoring and early warning server side in Example 2 of the present invention; Among them: 1. Pressure monitoring component; 2. Photovoltaic power supply component; 3. RS485 converter; 4. Front-end communication terminal; 5. Monitoring and early warning server; 6. Client terminal; 51. Data processing unit; 52. Data analysis unit; 53. Early warning unit. DETAILED DESCRIPTION

[0018] In order to solve the problems existing in the prior art, the present invention provides a sulfur hexafluoride gas pressure monitoring and early warning system and method, which are used to monitor the operating status of sulfur hexafluoride gas insulation equipment and provide real-time early warning. The system includes a pressure monitoring component, a photovoltaic power supply component, an RS485 converter, a front-end communication terminal, a monitoring and early warning server end and a client terminal, the pressure monitoring component is connected to the front-end communication terminal through the RS485 converter, and the front-end communication terminal, the monitoring and early warning server end and the client terminal are connected in sequence; the pressure monitoring component collects the real-time gas density, pressure value and temperature data of the sulfur hexafluoride gas insulation equipment, and sends the data signal to the front-end communication terminal after the data signal conversion through the RS485 converter; the front-end communication terminal encrypts the real-time data after the signal conversion and sends it to the monitoring and early warning server end; the monitoring and early warning server end uses the pre-stored temperature and pressure deviation value corresponding data, the preset equipment pressure threshold and the constant temperature data to analyze and process the encrypted real-time data, and sends the analysis and processing results to the client terminal; the photovoltaic power supply component is respectively connected to the pressure monitoring component, the RS485 converter and the front-end communication terminal for power supply.

[0019] The system provided by the present invention uses a pressure monitoring component to collect real-time gas density, pressure value and temperature data of sulfur hexafluoride gas insulation equipment, uses wireless signals of the Internet of Things private network to transmit data and uses solar photovoltaic power supply to achieve real-time monitoring of sulfur hexafluoride status data, data return security encryption and safe and convenient installation and wiring of on-site equipment, and the present invention further analyzes the collected data returned by the front-end network through the monitoring and early warning server end, pushes equipment operation status data to equipment managers, and performs alarm push and periodic inspection reminder push. The sulfur hexafluoride gas pressure monitoring and early warning system provided by the present invention has the advantages of low power consumption, long distance, anti-interference, etc., performs well in the special environment of outdoor high-voltage substations, and achieves the ultimate goal of helping equipment managers understand the equipment operation status anytime and anywhere, and improving equipment operation efficiency and maintainability.

[0020] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. The following embodiments are implemented based on the technical solution of the present invention, and provide detailed implementation methods and specific operation processes, but the protection scope of the present invention is not limited to the following embodiments.

[0021] Example 1: Figure 1 As shown, the sulfur hexafluoride gas pressure monitoring and early warning system provided in this embodiment can automatically analyze and monitor the operating status of the sulfur hexafluoride gas insulation equipment of the outdoor high-voltage substation in real time. The system includes a pressure monitoring component 1, a photovoltaic power supply component 2, an RS485 converter 3, a front-end communication terminal 4, a monitoring and early warning server 5, and a client terminal 6. Among them, the pressure monitoring component 1 is connected to the front-end communication terminal 4 through the RS485 converter 3, and the front-end communication terminal 4, the monitoring and early warning server 5, and the client terminal 6 are connected in sequence; the photovoltaic power supply component 2 is respectively connected to the pressure monitoring component 1, the RS485 converter 3, and the front-end communication terminal 4 for power supply.

[0022] The pressure monitoring component 1 includes a pressure sensor, a temperature sensor and a gas density transmitter, which are respectively installed on the sulfur hexafluoride gas insulation equipment to collect the real-time pressure value, temperature data and gas density of the sulfur hexafluoride gas insulation equipment, and then convert the data signal through the RS485 converter 3 and send it to the front-end communication terminal 4.

[0023] The photovoltaic power supply component 2 includes a photovoltaic panel, a photovoltaic inverter, a battery, a charging control unit and a discharging control unit. Specifically, the battery is connected to the charging control unit and the discharging control unit respectively. The charging control unit monitors the battery status of the battery and makes charging judgment according to the battery status of the battery. The battery provides power for the discharging control unit; the charging control unit is connected to the photovoltaic panel through the photovoltaic inverter, converts the direct current generated by the photovoltaic panel into alternating current, and adjusts the voltage and frequency; the discharging control unit is connected to the pressure monitoring component 1, the RS485 converter 3 and the front-end communication terminal 4 respectively. The battery provides power for the pressure monitoring component 1 to collect the real-time gas density, pressure value and temperature data of the sulfur hexafluoride gas insulation equipment through the discharging control unit, provides power for the RS485 converter 3 to transmit signals, and provides power for the front-end communication terminal 4. The charging control unit also includes a charging controller and a battery monitor connected to each other. The battery monitor monitors the voltage, current and temperature of the battery in real time, and sends the voltage, current and temperature data of the battery to the charging controller. The charging controller determines whether the battery is charged according to the voltage, current and temperature data of the battery.

[0024] The front-end communication terminal 4 includes a 4G encrypted IoT dial-up module. The real-time gas density, pressure value and temperature data encrypted by the front-end communication terminal 4 will be transmitted to the monitoring and early warning server 5 through the VPDN private network.

[0025] The client terminal 6 includes an input end and an output end. The client terminal 6 sends the preset equipment pressure threshold and the preset constant temperature value to the monitoring and early warning server end 5 through the input end. The output end of the client terminal 6 displays the collected real-time gas density, pressure value and temperature data of the sulfur hexafluoride gas insulation equipment, and displays the analysis and processing results of the monitoring and early warning server end 5. The output end uses the WeChat applet APP.

[0026] The monitoring and early warning server 5 uses the pre-stored temperature and pressure deviation value corresponding data, the preset equipment pressure threshold and constant temperature data to analyze and process the encrypted and sent real-time gas density, pressure value and temperature data. The monitoring and early warning server 5 is connected to the WeChat applet APP of the client terminal 6 through the WeChat cloud platform, and sends the analysis and processing results (including early warning information) of the monitoring and early warning server 5 to the WeChat applet APP of the client terminal 6 for display.

[0027] Embodiment 2: This embodiment provides another sulfur hexafluoride gas pressure monitoring and early warning system. The structure and function of each part of the system are basically the same as the monitoring and early warning system structure provided in Embodiment 1. The difference is that, Figure 2 As shown, the monitoring and early warning server specifically includes a data processing unit 51, a data analysis unit 52 and an early warning unit 53 connected in sequence. The specific process of analyzing and processing data on the monitoring and early warning server is as follows: Figure 3 shown.

[0028] The data processing unit 51 pre-stores the corresponding data of temperature and pressure deviation values, the preset equipment pressure threshold and constant temperature data, receives the real-time gas density, pressure value and temperature data of the sulfur hexafluoride gas insulation equipment sent encrypted from the front-end communication terminal, and sends the aforementioned pre-stored data and real-time collected data to the data analysis unit 52.

[0029] The storage process of the data corresponding to the temperature and pressure deviation values ​​includes: the sulfur hexafluoride gas insulated equipment calculates the pressure deviation values ​​of each temperature zone based on the historical monitoring data (density, pressure, temperature), removes the extreme difference data, and finally uses the arithmetic mean method to obtain the pressure deviation value of each 0.1°C at each temperature, and stores the data corresponding to the temperature and pressure deviation values ​​in the data processing unit 51. The equipment pressure threshold and constant temperature value are preset through the client terminal and stored in the data processing unit 51.

[0030] The data analysis unit 52 calculates the actual measured pressure value at the daily constant monitoring temperature using the corresponding data of the temperature and pressure deviation values, the preset device pressure threshold and constant temperature data, and the real-time gas density, pressure value and temperature data, and sends an alarm signal to the early warning unit 53 when the actual measured pressure value at the daily constant monitoring temperature is less than the preset device pressure threshold. Specifically: The data analysis unit 52 substitutes the real-time measured temperature value (that is, the real-time temperature data) of the sulfur hexafluoride gas insulation equipment into the temperature and pressure deviation value corresponding data table (the data table is obtained by sorting out the temperature and pressure deviation value corresponding data) to obtain the pressure deviation value of the actual measured temperature (that is, automatically selecting the temperature range deviation value); then, based on the real-time measured temperature value, the pressure deviation value of the actual measured temperature and the preset constant temperature value, the actual measured pressure value at the current constant monitoring temperature is calculated; then, the average calculation method is used to calculate the actual measured pressure value at the daily constant monitoring temperature, the data accuracy can be verified by the gas density value, and according to the actual measured pressure value at the daily constant monitoring temperature, the actual measured pressure value is selected. The date with the highest pressure value most recently before the current date is the previous gas replenishment date. The difference between the actual measured pressure value at the constant monitoring temperature of the current date and the actual measured pressure value at the constant monitoring temperature of the previous gas replenishment date is recorded as the gas leakage flow rate Q. The time difference between the current date and the previous gas replenishment date is T. The curve fitting calculation method is used to determine the next preparatory gas replenishment date based on the gas leakage flow rate Q, the time difference T and the preset equipment pressure threshold, and the preparatory gas replenishment date data is sent to the customer terminal. Finally, when the actual measured pressure value at the daily constant monitoring temperature is less than the preset equipment pressure threshold (that is, the preset alarm threshold), the data analysis unit 52 sends an alarm signal to the early warning unit 53.

[0031] The early warning unit 53 is connected to the client terminal, receives the alarm signal and sends the alarm information to the client terminal. The client terminal output terminal displays the collected real-time gas density, pressure value and temperature data of the sulfur hexafluoride gas insulation equipment, and displays the preparation gas replenishment date and the actual measured pressure value curve trend chart under the recent daily constant monitoring temperature.

[0032] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A sulfur hexafluoride gas pressure monitoring and early warning system, used to monitor the operating status of sulfur hexafluoride gas insulation equipment and provide real-time early warning, characterized in that: It includes a pressure monitoring component, a photovoltaic power supply component, an RS485 converter, a front-end communication terminal, a monitoring and early warning server and a client terminal. The pressure monitoring component is connected to the front-end communication terminal through the RS485 converter, and the front-end communication terminal, the monitoring and early warning server and the client terminal are connected in sequence; The pressure monitoring component collects real-time gas density, pressure value and temperature data of the sulfur hexafluoride gas insulation equipment, and converts the data signal through the RS485 converter and sends it to the front-end communication terminal; The front-end communication terminal encrypts the real-time data after signal conversion and sends it to the monitoring and early warning server; The monitoring and early warning server uses the pre-stored temperature and pressure deviation value corresponding data, the preset equipment pressure threshold and the constant temperature data to analyze and process the encrypted and sent real-time data, and sends the analysis and processing results to the client terminal, and the analysis and processing results include early warning information; The photovoltaic power supply component is respectively connected to the pressure monitoring component, the RS485 converter and the front-end communication terminal for power supply.

2. The sulfur hexafluoride gas pressure monitoring and early warning system according to claim 1, characterized in that: The pressure monitoring assembly comprises at least one pressure sensor, at least one temperature sensor and at least one gas density transmitter, which are respectively installed on the sulfur hexafluoride gas insulation equipment.

3. The sulfur hexafluoride gas pressure monitoring and early warning system according to claim 1, characterized in that: The photovoltaic power supply component includes a photovoltaic panel, a photovoltaic inverter, a battery, a charging control unit and a discharging control unit. The battery is respectively connected to the charging control unit and the discharging control unit. The charging control unit is connected to the photovoltaic panel through the photovoltaic inverter. The discharging control unit is respectively connected to the pressure monitoring component, the RS485 converter and the front-end communication terminal.

4. The sulfur hexafluoride gas pressure monitoring and early warning system according to claim 3, characterized in that: The charging control unit includes a charging controller and a battery monitor connected to each other.

5. The sulfur hexafluoride gas pressure monitoring and early warning system according to claim 1, characterized in that: The front-end communication terminal includes a 4G encrypted IoT dial-up module, and transmits the real-time gas density, pressure value and temperature data encrypted by the front-end communication terminal to the monitoring and early warning server through the VPDN private network.

6. The sulfur hexafluoride gas pressure monitoring and early warning system according to claim 1, characterized in that: The monitoring and early warning server includes a data processing unit, a data analysis unit and an early warning unit connected in sequence; The data processing unit pre-stores data corresponding to temperature and pressure deviation values, preset equipment pressure thresholds and constant temperature data, receives real-time gas density, pressure value and temperature data of sulfur hexafluoride gas insulation equipment encrypted and sent from the front-end communication terminal, and sends them to the data analysis unit; The data analysis unit calculates the actual measured pressure value at the daily constant monitoring temperature by using the temperature and pressure deviation value corresponding data, the preset device pressure threshold and constant temperature data, and the real-time gas density, pressure value and temperature data, and sends an alarm signal to the early warning unit when the actual measured pressure value at the daily constant monitoring temperature is less than the preset device pressure threshold; The early warning unit is connected to the client terminal, receives an alarm signal and sends alarm information to the client terminal.

7. The sulfur hexafluoride gas pressure monitoring and early warning system according to claim 6, characterized in that: The calculation process of the actual measured pressure value at the daily constant monitoring temperature specifically includes: Substituting the real-time measured temperature value into the temperature and pressure deviation corresponding data to obtain the pressure deviation value of the actual measured temperature; Based on the pressure deviation value and the preset constant temperature data, calculating the actual measured pressure value at the constant monitoring temperature; The actual measured pressure value at the constant monitoring temperature of each day is calculated using the average calculation method.

8. The sulfur hexafluoride gas pressure monitoring and early warning system according to claim 7, characterized in that: The data analysis unit is further used to determine a gas replenishment date, and the process of determining the gas replenishment date specifically includes: Based on the actual measured pressure value at the daily constant monitoring temperature, the date with the highest pressure value closest to the current date is selected as the previous gas replenishment date; The difference between the actual measured pressure value at the constant monitoring temperature on the current date and the actual measured pressure value at the constant monitoring temperature on the previous gas replenishment date is recorded as the gas leakage flow rate, and the time difference between the current date and the previous gas replenishment date is obtained; Based on the time difference, the gas leakage flow rate and the preset equipment pressure threshold, a curve fitting method is used to determine the next preliminary gas replenishment date.

9. The sulfur hexafluoride gas pressure monitoring and early warning system according to claim 1, characterized in that: The client terminal includes an input end and an output end. The client terminal sends the preset equipment pressure threshold and constant temperature data to the monitoring and early warning server end through the input end. The output end displays the collected real-time gas density, pressure value and temperature data, and displays the preparation gas replenishment date and the actual measured pressure value curve trend chart at the recent daily constant monitoring temperature.

10. A sulfur hexafluoride gas pressure monitoring and early warning method implemented based on the system according to any one of claims 1 to 9, characterized in that: The following steps are involved: Obtain real-time gas density, pressure and temperature data of sulfur hexafluoride gas insulation equipment; After converting the real-time gas density, pressure value and temperature data into data signals, the data are encrypted and transmitted; Analyze and process the encrypted transmitted real-time data using pre-stored temperature and pressure deviation value corresponding data, preset equipment pressure threshold and constant temperature data; When the analysis and processing results meet the preset conditions, an alarm signal is sent.

Images