High-freezing-resistance drainage method for ecological protection revetment of riverway shoreline
By designing a waterproof bag and automatic alarm system with strong frost resistance on the river bank line, the problems of difficult inspection and high maintenance costs of river drainage channels in the plateau area are solved, and the effect of automatic alarm and reducing the frequency of manual inspection is achieved.
Patent Information
- Application Number
- CN202510623634.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-15
- Publication Date
- 2025-06-24
AI Technical Summary
In plateau areas, river drainage channels are widely distributed and have long distances, which leads to increased difficulty in inspection and maintenance. Existing stacks such as sandbags are prone to rupture after the use limit and need to be replaced frequently, which increases labor and time costs.
A drainage device with strong frost resistance in the ecological protection guard of river shoreline was designed, and a water barrier bag was combined with a rupture alarm component, and the SMS module was connected through wires and relays to realize the automatic alarm function. At the same time, the misaligned alarm component detects displacement through magnets and reed tubes and automatically sends an alarm.
The device can automatically send SMS alerts when the waterproof bag breaks or displacement occurs, prompting the operator to replace or inspect in time, reducing the frequency and cost of manual inspections and improving the protection and maintenance efficiency of river bank lines.
Smart Images
Figure CN120193490A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of river drainage, and particularly to a drainage method with strong frost resistance for ecological protection of river shorelines. Background Art
[0002] River regulation is a comprehensive water conservancy project measure aimed at improving the water quality, ecological environment and flood discharge capacity of rivers. In the prior art, sandbags are often stacked on one side of the river near the shore to reinforce the river, which can protect the river bank slope, ensure the normal drainage operation of the river, prevent the bank slope from collapsing and soil erosion, and the ecological slope protection can also provide habitats and growth spaces for aquatic organisms and plants, enhancing the ecological function of the river.
[0003] Stacked objects such as sandbags are all consumables. As the use time increases, when they reach the service limit, they will be damaged and cracked, and at this time, they need to be replaced manually. In order to replace them in time when they are damaged, it is necessary to regularly organize personnel for inspection. However, the drainage channels in plateau areas are widely distributed and the distance between each drainage channel is relatively far, which will increase the inspection difficulty. Therefore, a drainage method with strong frost resistance for ecological protection of river shorelines is proposed to solve the above problems. Summary of the Invention
[0004] To make up for the above deficiencies, the present invention provides a drainage method with strong frost resistance for ecological protection of river shorelines, aiming to improve the problem in the prior art that "however, the drainage channels in plateau areas are widely distributed and the distance between each drainage channel is relatively far, which will increase the inspection difficulty".
[0005] To achieve the above object, the present invention adopts the following technical solution: A drainage device with strong frost resistance for ecological protection of river shorelines, including a second water retaining bag, a first water retaining bag is stacked above the second water retaining bag, the first water retaining bag and the second water retaining bag are the same kind of components with the same structure, a rupture alarm component is arranged on the outer walls of both the first water retaining bag and the second water retaining bag, the rupture alarm component is electrically connected to a short message module through an electric wire, a housing is installed outside the short message module, a dislocation alarm component is jointly arranged inside the first water retaining bag and the second water retaining bag, and a storage battery is installed inside the housing; The rupture alarm component includes a wire and a relay. The wire is wound around the outer wall of the first water retaining bag. The relay is installed inside the housing. One end of the wire is connected to the positive pole of the storage battery. Inside the relay, there is a normally closed power output source and a control power input terminal. The other end of the wire is connected to the positive power input terminal of the relay. The negative power input terminal and the control power input terminal of the relay are both connected to the negative pole of the storage battery. The outer shell of the SMS module has a positive interface and a negative interface, which are respectively connected to the positive and negative poles of the storage battery. The outer shell of the SMS module has a first signal input terminal, which is connected to the normally closed power output source of the relay. After the relay is powered on, it will generate magnetic attraction, causing the normally closed power output source and the control power input terminal to be open-circuited.
[0006] As a further description of the above technical solution: The misalignment alarm component includes a first carbon steel column, which is fixedly connected to the lower surface of the first water retaining bag. A magnet is provided on the lower surface of the first carbon steel column, and the lower surface of the magnet is flush with the lower surface of the first water retaining bag.
[0007] As a further description of the above technical solution: A second carbon steel column is fixedly connected to the upper surface of the second water retaining bag. An element box is fixedly connected to the upper surface of the second carbon steel column, and a reed switch is installed inside the element box.
[0008] As a further description of the above technical solution: An incoming wire end is provided inside the reed switch, and the incoming wire end is connected to the negative pole of the storage battery.
[0009] As a further description of the above technical solution: An outgoing wire end is provided on the outer wall of the reed switch.
[0010] As a further description of the above technical solution: The outer shell of the SMS module has a second signal input terminal, and the second signal input terminal is connected to the outgoing wire end of the reed switch.
[0011] As a further description of the above technical solution: A solar panel is connected in parallel to the outside of the storage battery through an electric wire.
[0012] As a further description of the above technical solution: The first water retaining bag includes a wear-resistant layer, an anti-freezing layer is installed inside the wear-resistant layer, and a filler is filled inside the anti-freezing layer.
[0013] As a further description of the above technical solution: A plurality of the first water retaining bags and the second water retaining bags are provided. The plurality of the first water retaining bags and the second water retaining bags are tightly stacked in the horizontal direction, and a filling groove is arranged between two adjacent groups of the first water retaining bags and the second water retaining bags.
[0014] As a further description of the above technical solution: A drainage method for a drainage device with strong frost resistance and drainage for an ecological protection revetment of a river bank line includes the following steps: S1. Preparation step: Fill the inside of the first water retaining bag with a filler and seal the opening. Then, wind a set of wires around the outer walls of the first water retaining bag and the second water retaining bag respectively, and connect one end of the wire to the positive pole of the storage battery. Then, install a relay inside the housing and connect the other end of the wire to the positive pole of the relay. Then, connect the normally closed power output source of the relay to the first signal input end of the short message module, and connect the control power input end of the relay to the storage battery. Then, install the first carbon steel column into the inside of the first water retaining bag, and install the second carbon steel column into the inside of the second water retaining bag. Then, connect the incoming wire end of the reed switch to the storage battery and the second signal input end. At this time, the preparation work is completed.
[0015] S2. Installation step: After the preparation work is completed, arrange a plurality of the first water retaining bags and the second water retaining bags in sequence on one side of the river in a stacked manner, and buffer materials such as sand and gravel can be filled in the filling groove. When the magnet at the lower end of the first water retaining bag approaches the reed switch at the upper end of the second water retaining bag, the internal circuit of the reed switch will be disconnected. Then, install the storage battery and the solar panel at a safe position on one side of the river. When the wire is electrified, the relay will generate magnetism, thereby destroying the connection state between the normally closed power output source and the control power input end.
[0016] S3. Rupture alarm: If the first water retaining bag or the second water retaining bag ruptures during use, the wire wound around its outer part will also break. In this way, the relay will not be able to continue generating magnetism due to the loss of power, and the normally closed power output source and the control power input end will be automatically connected. At this time, the first signal input end of the short message module will be connected to the negative pole of the storage battery through the normally closed power output source and the control power input end. In this way, the short message module will send out a first signal (a short message with the content that the waterproof bag has ruptured), prompting the operator that the outer wall of a certain group of the first water retaining bag or the second water retaining bag has ruptured.
[0017] S4. Dislocation alarm: If a landslide occurs in the river, the first water retaining bag and the second water retaining bag will be forced to separate. In this way, the magnet will be forced to move away from the reed switch, and the magnet will no longer be able to attract the reed switch, and the inside of the reed switch can be connected. At this time, the second signal input end of the short message module will be in contact with the negative pole of the storage battery through the reed switch. In this way, the short message module will send out a second signal, prompting the operator that a certain group of the first water retaining bag and the second water retaining bag has shifted.
[0018] The present invention has the following beneficial effects: 1. In the present invention, by providing a rupture alarm device, when the water retaining bag ruptures, the wire wound around its outer wall will break. As a result, the corresponding relay will lose its magnetism. At this time, the normally closed power output source inside the corresponding relay will output a signal to the short message module. Then, the short message module will send a signal to the mobile phone of the management personnel to prompt the management personnel to replace it in time. The overall device can automatically prompt the rupture of the bag body and is suitable for use in areas such as plateaus.
[0019] 2. In the present invention, by providing a displacement alarm device, when there is a displacement between the first water retaining bag and the second water retaining bag, the magnet will no longer attract the reed switch. Thus, the reed switch will automatically reset, and at the same time, its internal circuit will be connected. In this way, the short message module will send a signal to the management personnel to prompt the management personnel that there is a landslide risk in the protection area.
[0020] 3. In the present invention, by adopting a double-layer design, the outer wear-resistant layer is woven with basalt fibers, and the inner anti-freezing layer is woven with HDPE material. Then, the inner cavity of the bag is filled with filled stones to form a high-porosity skeleton. In this way, anti-freezing and drainage can be achieved simultaneously. Coarse sand is filled between the bags to construct an anti-freezing heave three-dimensional drainage network to replace the traditional concrete drainage holes. Vegetation can grow on the entire slope surface composed of the bags, which is beneficial to the restoration of the river bank ecosystem. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 is a three-dimensional structural schematic diagram of the overall device in the present invention; Figure 2 is a three-dimensional structural sectional schematic diagram of the first water retaining bag and the second water retaining bag in the present invention; Figure 3 is a three-dimensional structural sectional split schematic diagram of the displacement alarm component in the present invention; Figure 4 is a connection circuit schematic diagram of the short message module and the relay in the present invention; Figure 5 is a connection circuit schematic diagram of the short message module and the reed switch in the present invention.
[0022] LEGEND DESCRIPTION: 1. The first water retaining bag; 11. Wear-resistant layer; 12. Anti-freezing layer; 13. Filling material; 2. The second water retaining bag; 3. Rupture alarm component; 31. Wire; 32. Relay; 321. Normally closed power output source; 323. Control power input terminal; 4. Solar panel; 5. Short message module; 501. Positive electrode interface; 502. Signal input terminal 1; 503. Signal input terminal 2; 504. Negative electrode interface; 6. Displacement alarm component; 61. Carbon steel column 1; 62. Magnet; 63. Carbon steel column 2; 64. Component box; 65. Reed switch; 654. Outlet terminal; 655. Inlet terminal; 7. Filling groove; 8. Storage battery; 9. Housing. DETAILED DESCRIPTION OF THE INVENTION
[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0024] Referring to Figure 1 、 Figure 2 and Figure 4 , an embodiment provided by the present invention: a drainage device with strong frost resistance for ecological protection of river banklines, including a second water retaining bag 2 for blocking water flow. Above the second water retaining bag 2, a first water retaining bag 1 is stacked. The cooperation between the first water retaining bag 1 and the second water retaining bag 2 can increase the shielding range. Multiple groups of the first water retaining bags 1 and the second water retaining bags 2 can be stacked obliquely along the river channel, so as to form an inclined slope protection. Moreover, an ecological geotextile bag can be laid on the upper surface of the slope protection. The first water retaining bag 1 and the second water retaining bag 2 are the same kind of components with the same structure. Here, one and two are only for distinction. When multiple groups of the first water retaining bags 1 and the second water retaining bags 2 are stacked relative to each other, for any two adjacent upper and lower water retaining bags, the upper water retaining bag can be used as the first water retaining bag 1, and the lower water retaining bag can be used as the second water retaining bag 2. A rupture alarm component 3 for prompting the operator that the bag body is ruptured is arranged on the outer walls of the first water retaining bag 1 and the second water retaining bag 2. The rupture alarm component 3 is electrically connected to a short message module 5 through an electric wire. A housing 9 is installed outside the short message module 5. A displacement alarm component 6 for prompting the operator of landslide is jointly arranged inside the first water retaining bag 1 and the second water retaining bag 2. A storage battery 8 for storing electric energy is installed inside the housing 9; The rupture alarm component 3 includes a wire 31 and a relay 32. The wire 31 is wound around the outer wall of the first water retaining bag 1. The wire 31 is a thin enameled wire and needs to be wound around the outside of the first water retaining bag 1 or the second water retaining bag 2 for multiple turns when set. A rupture alarm component 3 is provided on the outside of each set of the first water retaining bag 1 and the second water retaining bag 2. The relay 32 is installed inside the housing 9. If the outer wall of the first water retaining bag 1 is broken, the wire 31 will also break accordingly. One end of the wire 31 is connected to the positive pole of the storage battery 8. The outer shell of the relay 32 has a normally closed power output source 321 and a control power input terminal 323. The other end of the wire 31 is connected to the positive power input terminal of the relay 32. The negative power input terminal and the control power input terminal 323 of the relay 32 are both connected to the negative pole of the storage battery 8. The outer shell of the short message module 5 has a positive interface 501 and a negative interface 504 for supplying power to the short message module 5. The positive interface 501 and the negative interface 504 are respectively connected to the positive and negative poles of the storage battery 8. In this way, the storage battery 8 can supply power to the short message module 5. The outer shell of the short message module 5 has a signal input terminal 502 for receiving a low-level trigger signal. The signal input terminal 502 is connected to the normally closed power output source 321 of the relay 32. When the thin enameled wire is not broken, the relay 32 is energized and the control power input terminal 323 and the normally closed contact terminal are open. The signal input terminal 502 of the short message module 5 will not input a low-level signal. When the thin enameled wire is broken, the relay 32 loses power and no longer attracts, the control power input terminal 323 and the normally closed contact terminal are closed, and the signal input terminal 502 of the short message module 5 will input a low-level signal.
[0025] Refer to Figures 2 - 4 , the dislocation alarm component 6 includes a first carbon steel column 61 for supporting a magnet 62. The first carbon steel column 61 is fixedly connected to the lower surface of the first water retaining bag 1. A magnet 62 is provided on the lower surface of the first carbon steel column 61. The lower surface of the magnet 62 is flush with the lower surface of the first water retaining bag 1. After the upper first water retaining bag 1 is attached to the lower second water retaining bag 2, the magnet 62 will attach to the upper surface of the lower second water retaining bag 2. A second carbon steel column 63 for supporting a component box 64 is fixedly connected to the upper surface of the second water retaining bag 2. A component box 64 for accommodating a reed switch 65 is fixedly connected to the upper surface of the second carbon steel column 63. A reed switch 65 for connecting an electric circuit is installed inside the component box 64. The reed switch 65 is a normally closed contact reed switch. An incoming wire end 655 is provided outside the reed switch 65. The incoming wire end 655 is connected to the negative pole of the storage battery 8.
[0026] Refer to Figure 2 , Figure 4 and Figure 5, a wire outlet 654 for transmitting signals is provided on the outer wall of the reed switch 65. The housing of the short message module 5 has a second signal input end 503. The second signal input end 503 is connected to the wire outlet 654 of the reed switch. The solar panel 4 for supplying power to the storage battery 8 is connected in parallel to the outside of the storage battery 8 through a wire. The first water retaining bag 1 includes a wear-resistant layer 11 for supporting the whole first water retaining bag 1. An anti-freezing layer 12 for preventing the first water retaining bag 1 from bursting is installed on the inner wall of the wear-resistant layer 11. The outer wear-resistant layer 11 of the first water retaining bag 1 is woven with basalt fiber, and the inner anti-freezing layer 12 is woven with HDPE material. In this way, it can not only prevent external friction, but also prevent the bag body from bursting caused by internal friction. The inside of the anti-freezing layer 12 is filled with a filler 13 for supporting the overall structure of the first water retaining bag 1. A plurality of groups of the first water retaining bags 1 and the second water retaining bags 2 are provided. The plurality of groups of the first water retaining bags 1 and the second water retaining bags 2 are closely stacked in the horizontal direction. A filling groove 7 for filling coarse sand is provided between two adjacent groups of the first water retaining bags 1 and the second water retaining bags 2.
[0027] A drainage method for a drainage device with strong anti-freezing property for ecological protection of river banklines, comprising the following steps S1. Preparation step: Fill the inside of the first water retaining bag with a filler and seal the opening. Then, a set of wires can be wound around the outer walls of the first water retaining bag and the second water retaining bag respectively, and one end of the wire is connected to the positive pole of the storage battery. Then, a relay can be installed inside the housing, and the other end of the wire is connected to the positive pole of the relay. Then, the normally closed power output source of the relay is connected to the first signal input end of the short message module, and the control power input end of the relay is connected to the storage battery. Then, the first carbon steel column can be installed inside the first water retaining bag, and the second carbon steel column can be installed inside the second water retaining bag. Then, the incoming wire end of the reed switch is connected to the storage battery and the second signal input end. At this time, the preparation work is completed.
[0028] S2. Installation step: After the preparation work is completed, a plurality of groups of the first water retaining bags 1 and the second water retaining bags 2 can be arranged in sequence on one side of the river in a stacked manner from top to bottom, and buffer materials such as sand and gravel can be filled in the filling groove 7. When the magnet 62 at the lower end of the first water retaining bag 1 approaches the reed switch 65 at the upper end of the second water retaining bag 2, the internal circuit of the reed switch 65 will be disconnected. Then, the storage battery 8 and the solar panel 4 can be installed at a safe position on one side of the river. When the wire 31 is energized, the relay 32 will generate magnetism, thus destroying the connection state between the normally closed power output source 321 and the control power input end 323.
[0029] S3. Rupture alarm: If the water retaining bag 1 or the water retaining bag 2 ruptures during use, the wire 31 wound around its exterior will also break. As a result, the relay 32 will lose power and be unable to continue generating magnetism, and the normally closed power output source 321 and the control power input terminal 323 will automatically connect. At this time, the first signal input terminal 502 of the SMS module 5 will be connected to the negative electrode of the storage battery 8 through the normally closed power output source 321 and the control power input terminal 323. In this way, the SMS module 5 will send out the first signal to prompt the operator that a rupture has occurred on the outer wall of a certain group of the water retaining bag 1 or the water retaining bag 2.
[0030] S4. Dislocation alarm: If a landslide occurs in the river channel, the water retaining bag 1 and the water retaining bag 2 will be forced to separate. As a result, the magnet 62 will be forced to move away from the reed switch 65, and the magnet 62 will no longer be able to attract the reed switch 65. The interior of the reed switch 65 can be connected. At this time, the second signal input terminal 503 of the SMS module 5 will contact the negative electrode of the storage battery 8 through the reed switch 65. In this way, the SMS module 5 will send out the second signal to prompt the operator that a displacement has occurred between a certain group of the water retaining bag 1 and the water retaining bag 2.
[0031] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A drainage device with strong antifreeze performance for river bank ecological protection, including a water retaining bag 2, characterized in that: A water retaining bag 1 is stacked on the water retaining bag 2, and the water retaining bag 1 and the water retaining bag 2 are the same kind of components with the same structure. The outer walls of the water retaining bag 1 and the water retaining bag 2 are both provided with a rupture alarm component, and the rupture alarm component is electrically connected to a text message module through an electric wire, and a shell is installed outside the text message module. The interiors of the water retaining bag 1 and the water retaining bag 2 are jointly provided with a dislocation alarm component, and a battery is installed inside the shell; The rupture alarm component includes a wire and a relay, the wire is wound around an outer wall of a water retaining bag, the relay is installed inside a shell, one end of the wire is connected to the positive pole of a battery, a normally closed power output source and a control power input terminal are provided inside the relay, the other end of the wire is interconnected with the positive power input terminal of the relay, the negative power input terminal and the control power input terminal of the relay are both connected to the negative pole of the battery, the shell of the SMS module has a positive electrode interface and a negative electrode interface, the positive electrode interface and the negative electrode interface are respectively interconnected with the positive pole and the negative pole of the battery, the shell of the SMS module has a signal input terminal one, the signal input terminal one is interconnected with the normally closed power output source, and the relay will generate magnetic attraction when energized, thereby destroying the connection state between the normally closed power output source and the control power input terminal.
2. A drainage device with strong antifreeze performance for river bank ecological protection and bank protection according to claim 1, characterized in that: The misalignment alarm component includes a carbon steel column, which is fixedly connected to the lower surface of the water retaining bag. The lower surface of the carbon steel column is provided with a magnet, and the lower surface of the magnet is flush with the lower surface of the water retaining bag.
3. A drainage device with strong antifreeze performance for river bank ecological protection and bank protection according to claim 2, characterized in that: A second carbon steel column is fixedly connected to the upper surface of the second water retaining bag, a component box is fixedly connected to the upper surface of the second carbon steel column, and a reed switch is installed inside the component box.
4. A drainage device with strong antifreeze performance for river bank ecological protection and bank protection according to claim 3, characterized in that: The reed switch is provided with an inlet terminal inside, and the inlet terminal is connected to the negative pole of the battery.
5. A drainage device with strong antifreeze performance for river bank ecological protection and bank protection according to claim 4, characterized in that: The outer wall of the reed switch is provided with an outlet terminal.
6. A drainage device with strong antifreeze performance for river bank ecological protection according to claim 5, characterized in that: The shell of the short message module has a second signal input terminal, and the second signal input terminal is connected to the output terminal of the reed switch.
7. The drainage device with strong antifreeze performance for river bank ecological protection and bank protection according to claim 1 is characterized by: The outside of the storage battery is connected in parallel with a solar panel via electric wires.
8. The drainage device with strong antifreeze performance for river bank ecological protection and bank protection according to claim 1 is characterized by: The first water retaining bag comprises a wear-resistant layer, an antifreeze layer is installed inside the wear-resistant layer, and a filler is filled inside the antifreeze layer.
9. A drainage device with strong antifreeze performance for river bank ecological protection and bank protection according to claim 1, characterized in that: The water retaining bag 1 and the water retaining bag 2 are provided in multiple groups, and the multiple groups of the water retaining bag 1 and the water retaining bag 2 are tightly stacked in the horizontal direction, and a filling groove is provided between two adjacent groups of the water retaining bag 1 and the water retaining bag 2.
10. A drainage method comprising a river bank ecological protection bank antifreeze strong drainage device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, preparation steps: fill the interior of the water retaining bag 1 with filler, and close the opening, then you can respectively wind a set of wires on the outer wall of the water retaining bag 1 and the water retaining bag 2, and connect one end of the wire to the battery, then you can install a relay at the front end of the water retaining bag 1 and the water retaining bag 2, and connect the other end of the wire to the relay, then you can connect the normally closed power output source of the relay to the signal input terminal 1 of the SMS module, connect the control power input terminal of the relay to the battery, then you can put the carbon steel column 1 into the interior of the water retaining bag 1, and put the carbon steel column 2 into the interior of the water retaining bag 2, then you can connect the incoming line end of the reed switch to the battery and the signal input terminal 2, and now the preparation work is complete; S2, installation steps: after the preparation work is completed, multiple groups of water retaining bags 1 and 2 can be stacked up and down and arranged in sequence on one side of the river, and sand and gravel and other buffers can be filled inside the filling tank. When the magnet at the lower end of the water retaining bag approaches the reed switch at the upper end of the water retaining bag 2, the internal route of the reed switch will be disconnected, and then the battery and solar panel can be installed in a safe position on one side of the river. When the wire is energized, the relay will generate magnetism to destroy the connection state between the normally closed power output source and the control power input end; S3, rupture alarm: If the water retaining bag 1 or the water retaining bag 2 is ruptured during use, the wire wrapped around the outside will also be broken, so the relay will not be able to continue to generate magnetism due to the loss of power, and the normally closed power output source and the control power input terminal will be automatically connected. At this time, the signal input terminal 1 of the SMS module will be connected to the negative pole of the battery through the normally closed power output source and the control power input terminal, so the SMS module will send out the first signal to remind the operator that the outer wall of a group of water retaining bags 1 or 2 is ruptured; S4. Dislocation alarm: If a landslide occurs in the river channel, water retaining bag 1 and water retaining bag 2 will be forced to separate, so that the magnet will be forced to move away from the reed switch, so that the magnet will no longer be able to attract the reed switch, and the inside of the reed switch will be connected. At this time, the signal input terminal 2 of the SMS module will contact the negative pole of the battery through the reed switch, so the SMS module will send a second signal to prompt the operator that a group of water retaining bag 1 and water retaining bag 2 have been displaced.