Multi-channel-section water level monitoring and controlling device
By installing water level sensors, flow rate sensors and water level analyzers in the channel and combining them with a central controller, the speed of water level changes can be monitored and analyzed in real time, the trend of water level changes can be predicted, and the time lag can be compensated by controlling the opening of the gate. This solves the problem of the inability to effectively compensate for the time lag when replenishing water sources in the existing technology, and ensures the safety and stability of water supply.
Patent Information
- Application Number
- CN202510972692.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-15
- Publication Date
- 2025-09-16
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing water level monitoring and control devices cannot effectively compensate for the time lag when replenishing water sources, posing a potential risk to water supply safety.
By installing water level sensors, flow rate sensors and water level analyzers in the channel and combining them with a central controller, the speed of water level changes can be monitored and analyzed in real time, the trend of water level changes can be predicted, and the time lag can be compensated by controlling the opening of the gate to keep the water level within a reasonable range.
It effectively compensates for the time lag problem, improves the safety and stability of water supply, reduces the labor intensity of operators, and improves the accuracy of monitoring and control.
Smart Images
Figure CN120653028A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of channel water level monitoring, and in particular to a multi-channel section water level monitoring and control device. Background Art
[0002] With economic and social development, the imbalance between water supply and demand has become increasingly prominent, leading many regions to construct large, long-distance open channel water transfer projects. These channels are typically divided into multiple, interconnected sections by multi-stage sluice gates, with the opening and closing of gates in each section regulating water levels and flow.
[0003] Compared to traditional small and medium-sized water transmission channels, the control process of long-distance and large-scale water transmission channels faces multiple challenges, among which time lag is particularly prominent.
[0004] Although the water level monitoring and control devices in the existing technology can realize automatic operation, for example, when the water level is detected to be too low, the controller controls the gate to open to replenish water and raise the water level. However, the control methods in the existing technology do not take into account the time lag problem. Often, the water level in the current channel section needs to be too low for a period of time before the water level can be replenished. This control method poses a hidden danger to water supply safety.
[0005] Therefore, the water level monitoring and control device in the prior art has a technical problem of being unable to compensate for the time lag when replenishing the water source. Summary of the Invention
[0006] The present invention provides a multi-channel section water level monitoring and control device, which solves the technical problem that the water level monitoring and control device in the prior art cannot compensate for the time lag when replenishing the water source.
[0007] Some implementation plans adopted to solve the above technical problems include: A multi-channel section water level monitoring and control device comprises a channel; Gates, wherein there are multiple gates, and the multiple gates are evenly distributed along the length direction of the channel, and a channel section is formed between two adjacent gates, wherein the length of the channel section is less than the length of the channel; A water level sensor, at least one of which is provided in each channel section, and monitors the water level in the corresponding channel section; A flow velocity sensor, at least one of which is provided in each channel section, and monitors the flow velocity of water in the corresponding channel section; A water level analyzer is provided in each channel section, the water level analyzer communicates with the water level sensor, and the water level analyzer monitors the speed of change of the water level in the corresponding channel section; and a central controller, the water level sensor, the water level analyzer, and the flow rate sensor all communicate with the central controller, and the gate is controlled by the central controller; Wherein, the central controller controls the gate by the following method; Use the water level sensor to determine whether the water level of the current channel section meets the set requirements; When the water level of the current channel section meets the set requirements, the water level sensor, the flow rate sensor, and the water level analyzer normally monitor the corresponding water body data of the current channel section and upload them to the central controller, and all the gates maintain their current status; The water level analyzer determines the changing speed of the water level in the current channel section, and the central controller determines the total time S required for the water level in the current channel section to change from the current state to a state that does not meet the requirements based on the changing speed of the water level in the current channel section; Determine the water flow velocity and water level change rate upstream or downstream of the current channel section through corresponding water level sensors and flow rate sensors; The central controller controls the opening of the gate upstream or downstream of the current channel section according to the water flow velocity and water level change speed upstream or downstream of the current channel section, so that the water body upstream or downstream of the current channel section changes the water level of the current channel section within S time.
[0008] Preferably, the central controller determines the total time S required for the water level of the current channel section to change from the current state to the state that does not meet the requirements according to the water level change speed of the current channel section, wherein the total time S is obtained by the following formula: S=(AB) / T; Where A is the water level of the current channel section, B is the minimum or maximum water level required for the current channel section, and T is the speed of water level change.
[0009] Preferably, the central controller controls the opening of the gate upstream or downstream of the current channel section according to the water flow velocity and water level change speed upstream or downstream of the current channel section, so that the water upstream or downstream of the current channel section changes the water level of the current channel section within S time, including the following steps: When the water level in the current channel section shows a downward trend, the central controller controls the gate downstream of the current channel section to close and controls the gate upstream of the current channel section to open, so that the water body upstream of the current channel section changes the water level of the current channel section within S time; When the water level in the current channel section shows an upward trend, the central controller controls the gate downstream of the current channel section to open and controls the gate upstream of the current channel section to close, so that the water in the current channel section enters the downstream of the current channel section within S time to change the water level of the current channel section.
[0010] Preferably, at least two water level sensors are provided in each channel section, and the average value of the water level data detected by all the water level sensors in the current channel section is the water level in the current channel section.
[0011] Preferably, at least two flow velocity sensors are provided in each channel section, and the average value of the water flow velocity data detected by all the flow velocity sensors in the current channel section is the water flow velocity in the current channel section.
[0012] Preferably, the water level analyzer obtains the water level change rate in the corresponding channel section by the following formula: V=(CD) / E; Where V is the water level change rate, C is the first water level, D is the second water level, and E is the time it takes for the water level in the current channel section to change from the first water level to the second water level.
[0013] Preferably, the water level sensor, the flow rate sensor and the water level analyzer all communicate with the central controller via wireless communication.
[0014] Preferably, the gate includes a gate frame fixed to the channel and a door body arranged on the gate frame, the door body spans the channel, and the door body is slidably connected to the gate frame, the gate frame is provided with a driving component for driving the door body to move relative to the gate frame, and the driving component is controlled by the central controller.
[0015] Preferably, the driving assembly includes a screw rotatably connected to the gate frame, the door body is provided with a screw hole cooperating with the screw, the gate frame is provided with a guide groove, a part of the door body is located in the guide groove, a sealing layer is provided between the door body and the guide groove, and the gate frame is also provided with a motor for driving the screw.
[0016] Preferably, the gate further includes a diverter that evenly distributes the water along the width direction of the channel. The water in the channel flows through the gate frame and the diverter in sequence. The diverter is a guide plate evenly distributed along the width direction of the channel.
[0017] Compared with the prior art, the present invention has the following advantages: By setting up a water level sensor, a water level analyzer and a flow rate sensor, the water level analyzer is used to determine the water level change speed of the current channel section, and the flow rate sensor is used to determine the water flow rate. Before the water level of the current channel section reaches the highest or lowest position, the central controller has already controlled the corresponding gate to open or close according to the water level change speed of the current channel section and the water flow rate of the relevant channel section, thereby effectively compensating for the time lag problem. That is, when the water level of the current channel section has not reached the lowest or highest water level, the central controller has controlled the corresponding gate to operate so that the water level of the current channel section is kept within a reasonable range, thereby effectively improving the safety and stability of water supply.
[0018] By setting up central control, the gate is controlled by the central controller, and the water level sensor, water level analyzer and flow rate sensor all communicate with the central controller. The entire water level monitoring and control process does not require human intervention, which effectively reduces the labor intensity of the operator and improves the monitoring and control accuracy of the water level monitoring and control device. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] For the purpose of explanation, several embodiments of the present invention are described in the following figures. The following figures are incorporated into this document and constitute a part of the detailed description. In some cases, well-known structures and components are shown in block diagram form to avoid obscuring the concepts of the present invention.
[0020] Figure 1 It is a structural block diagram of the present invention.
[0021] Figure 2 It is a control flow chart of the present invention.
[0022] Figure 3 This is a schematic diagram of the gate at the first angle.
[0023] Figure 4 This is a schematic diagram of the second angle of the gate.
[0024] As shown in the figure: 1. Channel.
[0025] 2. Gate, 21. Gate frame, 22. Door body, 23. Lead screw, 24. Guide groove, 25. Motor, 26. Diverter.
[0026] 3. Water level sensor.
[0027] 4. Flow rate sensor.
[0028] 5. Water level analyzer.
[0029] 6. Central controller. DETAILED DESCRIPTION
[0030] The specific embodiment shown below is intended to be a description of the various configurations of the subject technology of the present invention, and is not intended to represent the only configuration that the subject technology of the present invention can be put into practice. The specific embodiment includes specific details that are intended to provide a thorough understanding of the subject technology of the present invention. However, it will be clear and apparent to those skilled in the art that the subject technology of the present invention is not limited to the specific details shown herein, and can be put into practice without these specific details.
[0031] It will be understood that, herein, relational terms such as “first” and “second” are intended to distinguish one entity or operation from another entity or operation, and are not intended to express or imply any actual relationship or order between these entities or operations.
[0032] The terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.
[0033] Reference Figures 1 to 4 As shown, a multi-channel section water level monitoring and control device includes a channel 1; Gates 2, there are multiple gates 2, and the multiple gates 2 are evenly distributed along the length of the channel 1, and a channel section is formed between two adjacent gates 2, wherein the length of the channel section is less than the length of the channel 1; Water level sensor 3, at least one water level sensor 3 is provided in each channel section, and the water level sensor 3 monitors the water level in the corresponding channel section; Flow velocity sensor 4, at least one of which is provided in each channel section, and the flow velocity sensor 4 monitors the water flow velocity in the corresponding channel section; A water level analyzer 5 is provided in each channel section. The water level analyzer 5 communicates with the water level sensor 3 and monitors the speed of change of the water level in the corresponding channel section. and a central controller 6, the water level sensor 3, the water level analyzer 5, and the flow rate sensor 4 all communicate with the central controller 6, and the gate 2 is controlled by the central controller 6; Wherein, the central controller 6 controls the gate 2 by the following method; Determine whether the water level of the current channel section meets the set requirements through the water level sensor 3; When the water level of the current channel section meets the set requirements, the water level sensor 3, the flow rate sensor 4, and the water level analyzer 5 normally monitor the corresponding water body data of the current channel section and upload them to the central controller 6, and all the gates 2 maintain the current state; The water level analyzer 5 determines the change speed of the current canal section water level, and the central controller 6 determines the total time S required for the current canal section water level to change from the current state to a state that does not meet the requirements based on the change speed of the current canal section water level; Determine the water flow velocity and water level change rate upstream or downstream of the current channel section through the corresponding water level sensor 3 and flow rate sensor 4; The central controller 6 controls the opening of the gate 2 upstream or downstream of the current channel section according to the water flow rate and water level change rate upstream or downstream of the current channel section, so that the water body upstream or downstream of the current channel section changes the water level of the current channel section within S time.
[0034] It can be understood that the water level sensor 3, the flow rate sensor 4, the water level analyzer 5, the central controller 6 and the gate 2 are all common components or devices in the prior art.
[0035] The central controller 6 is a control system with network access capabilities, and can be a computer-based control system. It includes a memory for storing data and programs. The memory also includes data on the highest and lowest water levels for each canal section.
[0036] In some embodiments, the central controller 6 determines the total time S required for the water level of the current channel section to change from the current state to the state that does not meet the requirements based on the water level change speed of the current channel section, wherein the total time S is obtained by the following formula: S=(AB) / T; Where A is the water level of the current channel section, B is the minimum or maximum water level required for the current channel section, and T is the speed of water level change.
[0037] In some embodiments, the central controller 6 controls the opening of the gate 2 upstream or downstream of the current channel section according to the flow rate of the water body upstream or downstream of the current channel section and the water level change rate, so that the water body upstream or downstream of the current channel section changes the water level of the current channel section within a time period S, including the following steps: When the water level of the current channel section shows a downward trend, the central controller 6 controls the gate 2 downstream of the current channel section to close, and controls the gate 2 upstream of the current channel section to open, so that the water body upstream of the current channel section changes the water level of the current channel section within S time; When the water level of the current channel section shows an upward trend, the central controller 6 controls the gate 2 downstream of the current channel section to open and controls the gate 2 upstream of the current channel section to close, so that the water body of the current channel section enters the downstream of the current channel section within S time to change the water level of the current channel section.
[0038] In some embodiments, at least two water level sensors 3 are provided in each channel section, and the average value of the water level data detected by all the water level sensors 3 in the current channel section is the water level in the current channel section.
[0039] In some embodiments, at least two flow rate sensors 4 are provided in each channel section, and the average value of the water flow rate data detected by all the flow rate sensors 4 in the current channel section is the water flow rate in the current channel section.
[0040] In some embodiments, the water level analyzer 5 obtains the water level change rate in the corresponding channel section using the following formula: V=(CD) / E; Where V is the water level change rate, C is the first water level, D is the second water level, and E is the time it takes for the water level in the current channel section to change from the first water level to the second water level.
[0041] In some embodiments, the water level sensor 3 , the flow rate sensor 4 , and the water level analyzer 5 all communicate with the central controller 6 via wireless communication.
[0042] Reference Figures 3 to 4 As shown, in some embodiments, the gate 2 includes a gate frame 21 fixed to the channel 1 and a door body 22 arranged on the gate frame 21, the door body 22 spans the channel 1, and the door body 22 is slidingly connected to the gate frame 21, and the gate frame 21 is provided with a driving component for driving the door body 22 to move relative to the gate frame 21, and the driving component is controlled by the central controller 6.
[0043] In some embodiments, the driving assembly includes a screw 23 rotatably connected to the gate frame 21, the door body 22 is provided with a screw hole that cooperates with the screw 23, the gate frame 21 is provided with a guide groove 24, a part of the door body 22 is located in the guide groove 24, a sealing layer is provided between the door body 22 and the guide groove 24, and the gate frame 21 is also provided with a motor 25 for driving the screw 23.
[0044] In some embodiments, the gate 2 also includes a diverter 26 that evenly distributes the water along the width direction of the channel 1. The water in the channel 1 flows through the gate frame 21 and the diverter 26 in sequence. The diverter 26 is a guide plate evenly distributed along the width direction of the channel 1.
[0045] In some embodiments, when the width of the door body 22 is equal to the width of the channel 1 , the diverter 26 may be omitted.
[0046] The technical solution of the present invention is further described below with reference to specific application examples. It is to be understood that the following application examples are only used to further describe the technical solution of the present invention and are not intended to limit the technical solution of the present invention. When the water level of the current canal section is normal, the normal water level usually means that the water level is in the middle position between the highest water level and the lowest water level. The water level analyzer 5 monitors the water level change rate of the current canal section in real time. For example, the water level of the current canal section is on a downward trend, and the rate of decline is 1 cm / minute, while the lowest water level of the current canal section is 10 cm away from the current water level. That is, at the current water level decline rate, the water level of the current canal section will reach the lowest water level in 10 minutes and will quickly fall below the lowest water level.
[0047] At this point, central controller 6 determines how long it will take for water from the upstream section to reach the current section based on the flow rate of the water upstream of the current section. It then replenishes water to the current section, maintaining a stable water level. If the water level upstream of the current section takes five minutes to reach the current section, upstream gate 2 must be opened at least five minutes before the water level reaches the minimum level to replenish the current section.
[0048] Similarly, when the current water level is on an upward trend, the downstream sluice gate should be opened before the current channel section water level reaches the maximum water level to lower the current channel section water level so that the current channel section water level is within a reasonable range.
[0049] In practice, after the central controller 6 uses the above control process to control the corresponding gate 2, if the water level of the current channel section still cannot reach a reasonable height, the central controller 6 will issue an alarm signal to be handled by relevant personnel.
[0050] For example, in drought or heavy rain, even if the central controller 6 controls the corresponding gate 2 according to the above control process, the water level control requirements of the current channel section cannot be met due to insufficient water or excessive rain. In this case, the channel section water level cannot be controlled due to natural reasons. Therefore, the central controller 6 should issue an alarm message to notify relevant personnel. The alarm message is usually issued before the current channel section water level reaches the maximum or minimum water level, so as to provide relevant personnel with some preparation time.
[0051] The above describes the subject technical solution and corresponding details of the present invention. It can be understood that the above description is only some implementation plans of the subject technical solution of the present invention, and some details may be omitted during its specific implementation.
[0052] In addition, in some embodiments of the above invention, multiple embodiments may be implemented in combination. Due to space limitations, various combination schemes are not listed one by one. Those skilled in the art can freely combine and implement the above embodiments as needed in specific implementation to obtain a better application experience.
[0053] When implementing the subject technical solution of the present invention, those skilled in the art can obtain other detailed configurations or drawings based on the subject technical solution of the present invention and the drawings. Obviously, these details still fall within the scope covered by the subject technical solution of the present invention without departing from the subject technical solution of the present invention.
Claims
1. A multi-channel water level monitoring and control device, characterized by: The invention comprises a channel (1); a gate (2), wherein the gates (2) are multiple and the gates (2) are evenly distributed along the length direction of the channel (1), and a channel section is formed between two adjacent gates (2), wherein the length of the channel section is less than the length of the channel (1); A water level sensor (3), wherein at least one water level sensor (3) is provided in each channel section, and the water level sensor (3) monitors the water level in the corresponding channel section; a flow rate sensor (4), wherein at least one flow rate sensor is provided in each channel section, and the flow rate sensor (4) monitors the flow rate of the water body in the corresponding channel section; a water level analyzer (5), wherein each channel section is provided with the water level analyzer (5), the water level analyzer (5) communicates with the water level sensor (3), and the water level analyzer (5) monitors the speed of change of the water level in the corresponding channel section; and a central controller (6), wherein the water level sensor (3), the water level analyzer (5), and the flow rate sensor (4) all communicate with the central controller (6), and the gate (2) is controlled by the central controller (6); wherein the central controller (6) controls the gate (2) by the following method: determining the current Whether the water level of the channel section meets the set requirements; when the water level of the current channel section meets the set requirements, the water level sensor (3), the flow rate sensor (4), and the water level analyzer (5) normally monitor the corresponding water body data of the current channel section and upload them to the central controller (6), and all the gates (2) maintain the current state; the water level change speed of the current channel section is determined by the water level analyzer (5), and the central controller (6) determines the total time S required for the water level of the current channel section to change from the current state to the state that does not meet the requirements based on the water level change speed of the current channel section; the water flow rate and water level change speed of the upstream or downstream of the current channel section are determined by the corresponding water level sensor (3) and flow rate sensor (4); the central controller (6) controls the opening of the gate (2) upstream or downstream of the current channel section based on the water flow rate and water level change speed of the upstream or downstream of the current channel section, so that the water body upstream or downstream of the current channel section changes the water level of the current channel section within the S time.
2. The multi-channel water level monitoring and control device according to claim 1, characterized in that: The central controller (6) determines the total time S required for the water level of the current channel section to change from the current state to the state that does not meet the requirements based on the water level change speed of the current channel section, wherein the total time S is obtained by the following formula: S=(AB) / T; wherein A is the water level of the current channel section, B is the minimum or maximum water level required for the current channel section, and T is the water level change speed.
3. The multi-channel water level monitoring and control device according to claim 1, characterized in that: The central controller (6) controls the opening of the gate (2) upstream or downstream of the current channel section according to the flow rate of the water body upstream or downstream of the current channel section and the water level change speed, so that the water body upstream or downstream of the current channel section changes the water level of the current channel section within the S time period, including the following steps: when the water level of the current channel section is in a downward trend, the central controller (6) controls the gate (2) downstream of the current channel section to close, and controls the gate (2) upstream of the current channel section to open, so that the water body upstream of the current channel section changes the water level of the current channel section within the S time period; when the water level of the current channel section is in an upward trend, the central controller (6) controls the gate (2) downstream of the current channel section to open, and controls the gate (2) upstream of the current channel section to close, so that the water body of the current channel section within the S time period enters the downstream of the current channel section to change the water level of the current channel section.
4. The multi-channel water level monitoring and control device according to claim 1, characterized in that: At least two water level sensors (3) are provided in each channel section, and the average value of the water level data detected by all the water level sensors (3) in the current channel section is the water level in the current channel section.
5. The multi-channel water level monitoring and control device according to claim 1, characterized in that: At least two flow rate sensors (4) are provided in each channel section, and the average value of the water flow rate data detected by all the flow rate sensors (4) in the current channel section is the water flow rate in the current channel section.
6. The multi-channel water level monitoring and control device according to claim 1, characterized in that: The water level analyzer (5) obtains the water level change rate in the corresponding channel section through the following formula: V=(CD) / E; where V is the water level change rate, C is the first water level, D is the second water level, and E is the time it takes for the water level in the current channel section to change from the first water level to the second water level.
7. The multi-channel water level monitoring and control device according to claim 1, characterized in that: The water level sensor (3), the flow rate sensor (4), and the water level analyzer (5) all communicate with the central controller (6) via wireless communication.
8. The multi-channel water level monitoring and control device according to claim 1, characterized in that: The gate (2) comprises a gate frame (21) fixed to the channel (1) and a gate body (22) arranged on the gate frame (21), wherein the gate body (22) spans the channel (1), and the gate body (22) is slidably connected to the gate frame (21), and the gate frame (21) is provided with a driving component for driving the gate body (22) to move relative to the gate frame (21), and the driving component is controlled by the central controller (6).
9. The multi-channel water level monitoring and control device according to claim 8, characterized in that: The driving assembly includes a lead screw (23) rotatably connected to the gate frame (21); the door body (22) is provided with a screw hole that cooperates with the lead screw (23); the gate frame (21) is provided with a guide groove (24); a portion of the door body (22) is located in the guide groove (24); a sealing layer is provided between the door body (22) and the guide groove (24); and the gate frame (21) is further provided with a motor (25) for driving the lead screw (23).
10. The multi-channel water level monitoring and control device according to claim 9, characterized in that: The gate (2) further comprises a diverter (26) for uniformly distributing the water along the width direction of the channel (1); the water in the channel (1) flows sequentially through the gate frame (21) and the diverter (26); the diverter (26) is a guide plate uniformly distributed along the width direction of the channel (1).