Intelligent epidemic prevention water seal system and control method thereof

Abstract

The invention discloses an intelligent anti-epidemic water seal system which comprises an anti-epidemic water seal unit which is installed at a waste water drainage pipe of a building drainage system and used for conducting water seal on the waste water drainage pipe and collecting water seal liquid level data in real time; the intelligent control unit is used for judging whether water needs to be supplemented into the epidemic prevention water seal unit or not according to the water seal liquid level data transmitted by the epidemic prevention water seal unit and generating a fault signal according to the water supplementing condition; and the far-end epidemic prevention management platform is used for receiving the fault signal generated by the intelligent control unit and pushing pipeline leakage early warning or alarm information and regional epidemic prevention index information to related personnel according to the fault signal. The invention further discloses a control method of the intelligent epidemic prevention water seal system. According to the invention, precise deodorization and active epidemic prevention management of the building drainage system are realized.

Description

Technical Field

[0001] The present invention relates to the technical field of water seal devices, and in particular to an intelligent epidemic prevention water seal system and its control method. Background Art

[0002] A water seal device is a device that uses a certain height of static water pressure to resist the air pressure change in the drainage pipe and prevent harmful gases in the pipe from entering the room. The height of the water seal needs to be reasonably designed, generally not less than 50 mm. If it is too high, it is easy to be blocked, and if it is too low, it cannot effectively block the gas. The water seal device is widely used in building drainage systems, such as bathrooms and kitchens, and can effectively prevent the spread of odors and pathogenic bacteria.

[0003] The traditional water seal device has the following technical defects:

[0004] 1. Risk of static failure. Relying on a fixed water storage volume, evaporation, negative pressure or instantaneous flow impact may cause the liquid level to drop uncontrollably;

[0005] 2. Lack of passive monitoring. It is unable to sense the liquid level state in real time, and maintenance relies on manual inspection, resulting in low efficiency;

[0006] 3. Isolation in epidemic prevention. Lack of regional health data linkage and unable to support early warnings for public health events.

[0007] Although the prior art has proposed the concept of liquid level compensation, using wired communication or a single-protocol wireless module has problems such as complex deployment and poor anti-interference ability, and it is difficult to adapt to the epidemic prevention requirements of multiple scenarios.

[0008] Therefore, through beneficial exploration and research, the applicant has found a solution to the above problems, and the technical solution to be introduced below was generated under this background. Summary of the Invention

[0009] One of the technical problems to be solved by the present invention is: to provide an intelligent epidemic prevention water seal system that realizes precise closed-loop control of the water seal liquid level, multi-protocol wireless communication, and improves the epidemic prevention efficiency in view of the deficiencies of the prior art.

[0010] Another technical problem to be solved by the present invention is: to provide a control method for the above intelligent epidemic prevention water seal system.

[0011] As an intelligent epidemic prevention water seal system according to the first aspect of the present invention, it includes:

[0012] An epidemic prevention water seal unit, which is installed at the waste water drainage pipe of the building drainage system, and is used to perform water seal on the waste water drainage pipe and collect water seal liquid level data in real time;

[0013] An intelligent control unit, which is used to judge whether to replenish water into the epidemic prevention water seal unit according to the water seal liquid level data transmitted by the epidemic prevention water seal unit, and generate a fault signal according to the water replenishment situation; and

[0014] A remote epidemic prevention management platform, which is used to receive the fault signal generated by the intelligent control unit, and push pipeline leakage warning or alarm information and regional epidemic prevention index information to relevant personnel according to the fault signal.

[0015] In a preferred embodiment of the present invention, the epidemic prevention water seal unit includes:

[0016] A water seal box installed at the wastewater drain pipe; and

[0017] A liquid level sensor arranged in the water seal box and connected to the intelligent control unit.

[0018] In a preferred embodiment of the present invention, the liquid level sensor adopts a dual-redundancy contact or non-contact liquid level sensor.

[0019] In a preferred embodiment of the present invention, the intelligent control unit includes:

[0020] A controller housing, which is installed at the drain pipe connection and is located above the water seal box;

[0021] An electromagnetic valve installed in the controller housing, the water inlet end of the electromagnetic valve is connected to the water supply pipe, and its water outlet end extends into the water seal box through a pipeline;

[0022] A controller module installed in the controller housing, on the one hand, the controller module is connected to the liquid level sensor and the electromagnetic valve, and on the other hand, it is connected to the remote epidemic prevention management platform; and

[0023] A battery module installed in the controller housing and connected to the controller module.

[0024] In a preferred embodiment of the present invention, the controller housing includes:

[0025] A controller box body, the top surface of the controller box body is of an open structure, and an installation chamber is formed inside it; and

[0026] A controller cover plate, which is installed on the top surface of the controller box body in a detachable manner.

[0027] In a preferred embodiment of the present invention, a quick plug interface is formed at the water inlet end of the electromagnetic valve, and the electromagnetic valve is connected to the water supply pipe through the quick plug interface.

[0028] In a preferred embodiment of the present invention, the controller module includes:

[0029] A controller main board;

[0030] A wireless communication module integrated on the controller main board and powered by the battery module for wireless data interaction with the remote epidemic prevention management platform;

[0031] A solenoid valve drive circuit module integrated on the controller main board and powered by the battery module for connecting to the solenoid valve; and

[0032] A micro-control unit integrated on the controller main board, connected to the liquid level sensor, wireless communication module, and solenoid valve drive circuit module respectively, and powered by the battery module for processing the collected data and generating control signals.

[0033] In a preferred embodiment of the present invention, the battery module has a battery charging socket, and the battery module is charged through the battery charging socket.

[0034] In a preferred embodiment of the present invention, an intelligent control switch connected to the micro-control unit is also integrated on the controller main board.

[0035] In a preferred embodiment of the present invention, the micro-control unit uses an integrated STM32WL series wireless MCU with an adaptive liquid level algorithm built-in; the wireless communication module supports LoRa / NB-IoT / BLE multi-mode communication and is embedded in the controller main board through PCB pinholes, and the communication error rate ≤ 1×10 -6 ; the battery module uses a rechargeable battery with an annual self-consumption ≤ 3% and a battery life ≥ 12 months; the solenoid valve drive circuit module uses opto-isolated drive, with a response time ≤ 0.3s and a flux of 1.8L / min.

[0036] As a control method of an intelligent epidemic prevention water seal system according to the second aspect of the present invention, it includes:

[0037] Obtaining water seal liquid level data through the epidemic prevention water seal unit;

[0038] Judging whether to replenish water into the epidemic prevention water seal unit according to the water seal liquid level data through the intelligent control unit, and generating a fault signal according to the water replenishment situation;

[0039] Receiving the fault signal generated by the intelligent control unit through the remote epidemic prevention management platform, and pushing pipeline leakage warning or alarm information and regional epidemic prevention index information to relevant personnel according to the fault signal.

[0040] In a preferred embodiment of the present invention, the control strategy of the intelligent control unit is as follows:

[0041] Monitor the water seal liquid level in real time, with a frequency of once every 60 minutes;

[0042] When the water seal liquid level is less than 20 mm, start the solenoid valve for water replenishment. When the water seal liquid level is greater than or equal to 50 mm, close the solenoid valve. The interval between each water replenishment is more than 3 minutes. If the water replenishment times out for more than 30 seconds and does not reach 50 mm, trigger a fault alarm and upload it to the remote epidemic prevention management platform; if the water replenishment exceeds 120 seconds and does not reach the upper limit, determine the fault and upload it to the remote epidemic prevention management platform;

[0043] Force a self-check of the water seal liquid level every 4 hours. If the water seal liquid level is less than 30 mm, immediately start the solenoid valve for water replenishment. If the cumulative liquid level drop rate > 20 mm / h, trigger a fault warning and report it to the remote epidemic prevention management platform.

[0044] In a preferred embodiment of the present invention, a dynamic liquid level attenuation model is configured in the intelligent control unit. When the liquid level drop rate V satisfies V > 0.5*e -0.1t (unit: mm / h), it is determined as a high-risk failure.

[0045] In a preferred embodiment of the present invention, when the signal strength of the wireless communication module in the intelligent control unit is less than -110 dBm, LoRa spread spectrum communication is enabled, and the bit error rate ≤ 1×10 -6 .

[0046] In a preferred embodiment of the present invention, the loss rate LLR of the remote epidemic prevention management platform is calculated as follows:

[0047] Loss rate LLR = (number of water replenishments within 24 hours * average single water replenishment volume) / theoretical evaporation volume * 100%;

[0048] When LLR > 150%, push a pipeline leakage warning.

[0049] In a preferred embodiment of the present invention, the remote epidemic prevention management platform outputs an epidemic prevention efficiency score S = ∑ n i＝1 w i *ln(fi + 1), where ln is the natural logarithm, fi is the liquid level anomaly frequency, and w i is the weight coefficient.

[0050] Due to the adoption of the above technical solutions, the beneficial effects of the present invention are as follows: Through dual-redundancy contact or non-contact liquid level sensing, multi-protocol adaptive communication, and epidemic prevention modeling, the present invention realizes precise odor prevention and active epidemic prevention management of the building drainage system. The present invention adopts a heterogeneous wireless single-chip design, embeds the communication unit into the liquid level controller, supports LoRa / BLE / NB-IoT multi-mode switching, and improves the anti-interference ability while maintaining ultra-low power consumption (standby ≤ 5 μA). Combined with the risk assessment algorithm of the cloud platform, the incidence of odor return events can be reduced to less than 0.5%, and regionalized epidemic prevention strategies can be generated, which are applicable to smart city and public health safety management. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0052] Figure 1 is the system architecture diagram of the intelligent epidemic prevention water seal system of the present invention.

[0053] Figure 2 is the installation schematic diagram of the epidemic prevention water seal unit and the intelligent control unit of the present invention.

[0054] Figure 3 is the structural schematic diagram of the epidemic prevention water seal unit of the present invention.

[0055] Figure 4 is the exploded structural schematic diagram of the epidemic prevention water seal unit of the present invention.

[0056] Figure 5 is the structural schematic diagram of the intelligent control unit of the present invention.

[0057] Figure 6 is the exploded structural schematic diagram of the intelligent control unit of the present invention.

[0058] Figure 7 is the connection schematic diagram of the intelligent control unit of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0059] In order to make the technical means, creative features, achieved purposes, and functions of the present invention easy to understand, the present invention will be further described below with reference to specific illustrations.

[0060] See Figure 1 , what is shown in the figure is an intelligent epidemic prevention water seal system, including an epidemic prevention water seal unit 100, an intelligent control unit 200, and a remote epidemic prevention management platform 300.

[0061] See Figure 2 and in combination with Figure 3 and Figure 4 , the epidemic prevention water seal unit 100 is installed at the wastewater drain pipe 10 of the building drainage system, which is used to water seal the wastewater drain pipe 10 and collect the water seal liquid level data in real time. Specifically, the epidemic prevention water seal unit 100 includes a water seal box 110 and a liquid level sensor 120. The water seal box 110 is installed at the wastewater drain pipe 10, and the liquid stored inside it plays a role in isolating odors. The liquid level sensor 120 is arranged in the water seal box 110 and connected to the intelligent control unit 200. It is used to collect the water seal liquid level in the water seal box 110 and transmit the collected water seal liquid level data to the intelligent control unit 200 for processing. In this embodiment, the liquid level sensor 120 preferably adopts a dual-redundancy contact or non-contact liquid level sensor, which is embedded at the positions of the lower water level (20 ± 0.5 mm) and the upper water level (50 ± 0.5 mm) of the inner wall of the water seal box 110.

[0062] See Figure 2 and in combination with Figures 5 to 7 , the intelligent control unit 200 is used to judge whether to replenish water into the epidemic prevention water seal unit 100 according to the water seal liquid level data transmitted by the epidemic prevention water seal unit 100, and generate a fault signal according to the water replenishment situation. Specifically, the intelligent control unit 200 includes a controller housing 210, a solenoid valve 220, a controller module 230, and a battery module 240.

[0063] The controller housing 210 is installed at the connection drain pipe 20 and is located above the water seal box 110. The controller housing 210 includes a controller box body 211 and a controller cover plate 212. The top surface of the controller box body 211 is an open structure, and an installation chamber for accommodating modules or components is formed inside it. The controller cover plate 212 is installed on the top surface of the controller box body 211 in a detachable manner, which is convenient for overhauling and maintaining the modules or components installed in the controller box body 211.

[0064] The solenoid valve 220 is installed in the controller housing 210. The water inlet end of the solenoid valve 220 is connected to the water supply pipe, and its water outlet end extends into the water seal box 110 through a pipeline. It is used to replenish water into the water seal box 110 according to the control signal to prevent the water seal box from failing due to water shortage. For the convenience of connection, a quick plug interface 221 is formed at the water inlet end of the solenoid valve 220, and the solenoid valve 220 is connected to the water supply pipe through the quick plug interface 221.

[0065] The controller module 230 is installed inside the controller housing 210. On the one hand, it is connected to the liquid level sensor 120 and the solenoid valve 220, and on the other hand, it is connected to the remote epidemic prevention management platform 300. The battery module 240 is installed inside the controller housing 210 and is connected to the controller module 230. The battery module 240 has a battery charging socket 241, and the battery module 240 is charged through the battery charging socket 241.

[0066] Specifically, the controller module 230 includes a controller main board 231, a wireless communication module 232, a solenoid valve drive circuit module 233, and a micro control unit 234.

[0067] The wireless communication module 232 is integrated on the controller main board 231 and is supplied with operating electrical energy by the battery module 240. It is used for wireless data interaction with the remote epidemic prevention management platform 300.

[0068] The solenoid valve drive circuit module 233 is integrated on the controller main board 231 and is supplied with operating electrical energy by the battery module 240. It is used to connect to the solenoid valve 220 and control the opening and closing of the solenoid valve 220.

[0069] The micro control unit 234 is integrated on the controller main board 231 and is respectively connected to the liquid level sensor 120, the wireless communication module 232, and the solenoid valve drive circuit module 233 and is supplied with operating electrical energy by the battery module 240. It is a micro control unit used for processing the collected data and generating control signals.

[0070] An intelligent control switch 235 connected to the micro control unit 234 is also integrated on the controller main board 231, and it is used to control the working state of the controller module 230.

[0071] In this embodiment, the micro control unit 234 uses an integrated STM32WL series wireless MCU with a built-in adaptive liquid level algorithm; the wireless communication module 232 supports LoRa / NB-IoT / BLE multi-mode communication and is embedded in the controller main board through PCB stamp holes, and the communication error rate ≤ 1×10 -6 ; the battery module 240 uses a rechargeable battery with an annual self-consumption ≤ 3% and a battery life ≥ 12 months; the solenoid valve drive circuit module 233 uses opto-isolated drive, with a response time ≤ 0.3s and a flux of 1.8L / min.

[0072] The remote epidemic prevention management platform 300 is used to receive the fault signal generated by the intelligent control unit 200, and push pipeline leakage early warning or alarm information and regional epidemic prevention index information to relevant personnel according to the fault signal.

[0073] The control method of the intelligent epidemic prevention water seal system of the present invention includes the following steps:

[0074] Step S10, obtain the water seal liquid level data through the epidemic prevention water seal unit 100;

[0075] Step S20, the intelligent control unit 200 determines whether to replenish water into the epidemic prevention water seal unit 100 according to the water seal liquid level data, and generates a fault signal according to the water replenishment situation;

[0076] Step S30, the remote epidemic prevention management platform 300 receives the fault signal generated by the intelligent control unit 200, and pushes pipeline leakage warning or alarm information and regional epidemic prevention index information to relevant personnel according to the fault signal.

[0077] The control strategy of the intelligent control unit 200 is as follows:

[0078] Monitor the water seal liquid level in real time, with a frequency of once every 60 minutes;

[0079] When the water seal liquid level is less than 20 mm, start the solenoid valve to replenish water. When the water seal liquid level is greater than or equal to 50 mm, close the solenoid valve. The interval between each water replenishment is greater than 3 minutes. If the water replenishment times out and is less than 50 mm after more than 30 seconds, trigger a fault alarm and upload it to the remote epidemic prevention management platform; if the water replenishment exceeds 120 seconds and does not reach the upper limit, determine the fault and upload it to the remote epidemic prevention management platform;

[0080] Force a self-check of the water seal liquid level every 4 hours. If the water seal liquid level is less than 30 mm, immediately start the solenoid valve to replenish water. If the cumulative liquid level drop rate > 20 mm / h, trigger a fault warning and report it to the remote epidemic prevention management platform.

[0081] A dynamic liquid level attenuation model is configured in the intelligent control unit 200. When the liquid level drop rate V satisfies V > 0.5*e -0.1t (unit: mm / h), it is determined as a high-risk failure.

[0082] The wireless communication strategy of the wireless communication module 232 in the intelligent control unit 200 is as follows:

[0083] Normal data: Upload the encrypted liquid level status every 24 hours (compression rate ≥ 85%), and the data packet format is JSON, including timestamp, liquid level value, and battery voltage:

[0084] Emergency events: Transmit in real-time frequency hopping to the nearest 3 relay nodes (frequency switching interval ≤ 50 ms), and use AES-256 encryption;

[0085] Protocol adaptation: Dynamically switch the communication mode according to the signal strength. That is, when the signal strength is less than -110 dBm, enable LoRa spread spectrum communication, and the bit error rate ≤ 1×10 -6 .

[0086] The loss rate LLR of the remote epidemic prevention management platform 300 is calculated as follows:

[0087] Loss rate LLR = (Number of water replenishments within 24 hours * Average single water replenishment volume) / Theoretical evaporation volume * 100%;

[0088] When LLR > 150%, a pipeline leakage warning is pushed.

[0089] The remote epidemic prevention management platform 300 outputs an epidemic prevention efficiency score S = ∑ n i＝1 w i *ln(fi + 1), where ln is the natural logarithm, which performs a non - linear transformation on the liquid level anomaly frequency fi to smooth the data and suppress the influence of extreme values. Its significance lies in avoiding the linear amplification of the total score S by high - frequency abnormal events (such as multiple liquid level drops in a short period), reflecting the "diminishing marginal effect"; taking the logarithm {ln(fi + 1)} after adding 1 is to prevent mathematical errors when fi = 0 (i.e., ln(0) is undefined).

[0090] fi represents the liquid level anomaly frequency, which is the number of trigger times of the i - th type of liquid level anomaly event within a unit time (such as daily, weekly). For example, f1 = average daily number of times the liquid level is below the lower limit (such as <20mm); f2 = average weekly number of times of water replenishment timeout failure (such as >30 seconds not meeting the standard); f3 = average monthly number of times the liquid level fluctuation exceeds the threshold (such as >1mm drop per hour).)

[0091] w i is the weight coefficient, which is the weight value assigned according to the contribution degree of the liquid level anomaly type to the public health risk. For example, if "the liquid level is below the lower limit" (f1) directly causes odor return, its weight w1 is higher (such as 0.6); "water replenishment timeout failure" (f2) may cause maintenance delay, and the weight w2 is lower (such as 0.3); other minor anomalies wi can be set to 0.1.

[0092] The remote epidemic prevention management platform 300 can support an AI - based liquid level attenuation model to predict the probability of water seal failure based on time - series analysis (prediction error ≤ 5%); at the same time, it also supports the regional epidemic prevention index: aggregating multi - building data to generate a dynamic heat map and supporting hierarchical early warnings (low / medium / high risk).

[0093] 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 by the above - mentioned embodiments. What is described in the above - mentioned embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent epidemic prevention water seal system, characterized in that: include: An epidemic prevention water seal unit, which is installed at the wastewater drainage pipe of the building drainage system, and is used to water seal the wastewater drainage pipe and collect water seal liquid level data in real time; An intelligent control unit, the intelligent control unit is used to determine whether to add water to the epidemic prevention water seal unit according to the water seal liquid level data transmitted by the epidemic prevention water seal unit, and generate a fault signal according to the water replenishment situation; as well as A remote epidemic prevention management platform, which is used to receive the fault signal generated by the intelligent control unit, and push pipeline leakage warning or alarm information and regional epidemic prevention index information to relevant personnel according to the fault signal.

2. The intelligent epidemic prevention water seal system according to claim 1, characterized in that: The anti-epidemic water seal unit comprises: Water seal boxes installed at wastewater drains; and A liquid level sensor is arranged in the water seal box and connected to the intelligent control unit.

3. The intelligent epidemic prevention water seal system according to claim 2, characterized in that: The liquid level sensor adopts a dual redundant contact or non-contact liquid level sensor.

4. The intelligent epidemic prevention water seal system according to claim 2, characterized in that: The intelligent control unit comprises: A controller housing, the controller housing being installed at the drainage pipe connection and located above the water seal box; A solenoid valve installed in the controller housing, wherein the water inlet end of the solenoid valve is connected to the water supply pipe, and the water outlet end of the solenoid valve extends into the water seal box through a pipeline; A controller module installed in the controller housing, the controller module being connected to the liquid level sensor and the solenoid valve on one hand, and connected to the remote epidemic prevention management platform on the other hand; and A battery module is installed in the controller housing and connected to the controller module.

5. The intelligent epidemic prevention water seal system according to claim 4, characterized in that: The controller housing comprises: A controller box body, wherein the top surface of the controller box body is an open structure, and an installation chamber is formed inside the controller box body; and A controller cover plate is detachably mounted on the top surface of the controller box body.

6. The intelligent epidemic prevention water seal system according to claim 4, characterized in that: A quick plug-in interface is formed at the water inlet end of the solenoid valve, and the solenoid valve is connected to the water supply pipe via the quick plug-in interface.

7. The intelligent epidemic prevention water seal system according to claim 4, characterized in that: The controller module comprises: Controller motherboard; A wireless communication module integrated on the controller mainboard and powered by the battery module for wireless data interaction with the remote epidemic prevention management platform; an electromagnetic valve driving circuit module integrated on the controller mainboard and provided with working power by the battery module and used to be connected to the electromagnetic valve; and A microcontroller unit for processing collected data and generating control signals is integrated on the controller mainboard and is respectively connected to the liquid level sensor, the wireless communication module, and the solenoid valve drive circuit module and is provided with working power by the battery module.

8. The intelligent epidemic prevention water seal system according to claim 7, characterized in that: The battery module has a battery charging socket, and the battery module is charged through the battery charging socket.

9. The intelligent epidemic prevention water seal system according to claim 7, characterized in that: The controller mainboard is also integrated with an intelligent control switch connected to the micro control unit.

10. The intelligent epidemic prevention water seal system according to claim 7, characterized in that: The microcontroller unit uses an integrated STM32WL series wireless MCU with a built-in adaptive liquid level algorithm; the wireless communication module supports LoRa / NB-IoT / BLE multi-mode communication and is embedded in the controller mainboard through a PCB stamp hole, with a communication bit error rate of ≤1×10 -6 ; The battery module adopts a rechargeable battery with an annual self-consumption of ≤3% and a battery life of ≥12 months; The solenoid valve drive circuit module adopts optocoupler isolation drive, with a response time of ≤0.3s and a flux of 1.8L / min.

11. A control method for an intelligent epidemic prevention water seal system according to any one of claims 1 to 10, characterized in that: include: Obtain water seal liquid level data through the epidemic prevention water seal unit; The intelligent control unit determines whether to add water to the epidemic prevention water seal unit according to the water seal liquid level data, and generates a fault signal according to the water replenishment situation; The fault signal generated by the intelligent control unit is received through the remote epidemic prevention management platform, and pipeline leakage warning or alarm information and regional epidemic prevention index information are pushed to relevant personnel according to the fault signal.

12. The control method according to claim 11, characterized in that: The control strategy of the intelligent control unit is as follows: Real-time monitoring of water seal level, once every 60 minutes; When the water seal level is less than 20mm, the solenoid valve is activated to replenish water. When the water seal level is greater than or equal to 50mm, the solenoid valve is closed. The interval between each water replenishment is greater than 3 minutes. If the water replenishment timeout is greater than 30 seconds and does not reach 50mm, a fault alarm is triggered and uploaded to the remote epidemic prevention management platform; if the water replenishment exceeds 120 seconds and does not reach the upper limit, it is determined to be a fault and uploaded to the remote epidemic prevention management platform; The water seal liquid level is forced to self-check every 4 hours. If the water seal liquid level is less than 30mm, the solenoid valve will be started to replenish water immediately. If the cumulative liquid level drop rate is greater than 20mm / h, a fault warning will be triggered and reported to the remote epidemic prevention management platform.

13. The control method according to claim 11, characterized in that: The intelligent control unit is equipped with a dynamic liquid level decay model. When the liquid level drop rate V satisfies V>0.5*e -0.1t (Unit: mm / h), it is judged as a high risk failure.

14. The control method according to claim 11, characterized in that: When the signal strength of the wireless communication module in the intelligent control unit is less than -110dBm, LoRa spread spectrum communication is enabled, and the bit error rate is ≤1×10 -6 .

15. The control method according to claim 11, characterized in that: The loss rate LLR of the remote epidemic prevention management platform is calculated as follows: Loss rate LLR = (number of water replenishment times within 24 hours * average single water replenishment amount) / theoretical evaporation amount * 100%; When LLR>150%, a pipeline leakage warning is pushed.

16. The control method according to claim 11, characterized in that: The remote epidemic prevention management platform outputs an epidemic prevention effectiveness score S=∑ n i＝1 w i *ln(fi+1), where ln is the natural logarithm, fi is the abnormal frequency of liquid level, w i Weight coefficient.

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