Monitoring device for a wastewater treatment system

Abstract

The embodiment of the present disclosure provides a monitoring device for a wastewater treatment system, comprising a first device arranged at a first position of the wastewater treatment system, configured to emit a first signal, receive a second signal reflected back by an object in a projection area of the first device, and output a first monitoring signal based on the second signal; a second device arranged at a second position of the wastewater treatment system, configured to emit a third signal, receive a fourth signal reflected back by an object in a projection area of the second device, and output a second monitoring signal based on the fourth signal; the first device and the second device are kept at a preset distance in a first direction, and the second device is located below the first device; and a control device communicatively coupled with the first device and the second device, configured to output a first control signal in response to the first monitoring signal and / or the second monitoring signal, the first control signal being configured to control whether to supply a conditioner for wastewater treatment to the wastewater treatment system.

Description

Technical Field

[0001] This disclosure relates to the field of wastewater treatment technology, and in particular to a monitoring device for a wastewater treatment system. Background Technology

[0002] The treatment of grinding wastewater is an important part of the semiconductor manufacturing process.

[0003] However, existing wastewater treatment systems are prone to overflows during maintenance, which not only pollute the environment but also damage the system.

[0004] Therefore, reducing the probability of overflows in wastewater treatment systems during maintenance has become a challenge. Summary of the Invention

[0005] This disclosure provides a monitoring device for a wastewater treatment system, which can reduce the probability of overflow during the maintenance of the wastewater treatment system.

[0006] This disclosure provides a monitoring device for a wastewater treatment system, comprising a first device, a second device, and a control device, wherein:

[0007] The first device is disposed at a first position in the wastewater treatment system and is configured to transmit a first signal, receive a second signal reflected back by an object within the projection area of ​​the first device, and output a first monitoring signal based on the second signal;

[0008] The second device is disposed at a second position in the wastewater treatment system and is configured to transmit a third signal, receive a fourth signal reflected back by an object within the projection area of ​​the second device, and output a second monitoring signal based on the fourth signal; the first device and the second device maintain a preset distance in a first direction, and the second device is located below the first device;

[0009] The control device is communicatively coupled to the first device and the second device, respectively, and is configured to output a first control signal in response to the first monitoring signal and / or the second monitoring signal. The first control signal is configured to control whether to supply a conditioning agent for wastewater treatment to the wastewater treatment system.

[0010] Optionally, the first location includes at least one first point, and the first device includes at least one first sensing device, which is disposed at the corresponding first point.

[0011] Optionally, the first location includes a plurality of first points, and the first device includes a plurality of first sensing devices; the plurality of first sensing devices are respectively disposed at the corresponding first points, and are respectively configured to transmit a first signal, receive a second signal reflected back by an object in the projection area of ​​the first sensing device, and output a first monitoring signal based on the second signal.

[0012] Optionally, the plurality of first points are located on different planes; or, the plurality of first points are located on the same plane.

[0013] Optionally, the second position includes at least one second point, and the second device includes at least one second sensing device disposed at the corresponding second point.

[0014] Optionally, the second position includes a plurality of second points, and the second device includes a plurality of second sensing devices; the plurality of second sensing devices are respectively disposed at the corresponding second points, and are respectively configured to transmit a third signal, receive a fourth signal reflected back by an object in the projection area of ​​the second sensing device, and output a second monitoring signal based on the fourth signal.

[0015] Optionally, the plurality of second points are located on different planes; or, the plurality of second points are located on the same plane.

[0016] Optionally, the monitoring device further includes: a third device, disposed at a third location in the wastewater treatment system, the third location including multiple third points; the third device including multiple third sensing devices and processing devices; wherein:

[0017] The multiple third points are located on the same plane;

[0018] The plurality of third sensing devices are respectively set at corresponding third points. The plurality of third sensing devices are configured to be mutually communicatively coupled in pairs. Each of the third sensing devices is configured to transmit a fifth signal and receive the fifth signal transmitted by the mutually communicatively coupled third sensing devices.

[0019] The processing device is configured to acquire the fifth signal received by each third sensing device, and output a third monitoring signal based on the fifth signal received by each third sensing device and a reference signal.

[0020] Optionally, when the wastewater treatment system is not performing wastewater treatment tasks, each of the third sensing devices is configured to transmit a sixth signal and receive a sixth signal transmitted by mutually communicatively coupled third sensing devices.

[0021] The processing device is configured to acquire the sixth signal received by each of the second sensing devices in order to generate the reference signal.

[0022] Optionally, the control device is further configured to output a second control signal in response to the third monitoring signal, the second control signal being configured to determine a supply mode for supplying the regulator to the wastewater treatment system.

[0023] Optionally, the monitoring device further includes a liquid supply device communicatively coupled to the control device, the liquid supply device comprising:

[0024] Liquid storage devices;

[0025] A liquid transmission pipeline is installed between the liquid storage device and the wastewater treatment system;

[0026] A valve, coupled to the liquid transmission pipeline, is configured to open or close in response to the first control signal, and to adjust the valve opening in response to the second control signal;

[0027] The pump, coupled to the liquid transfer line, is configured to turn on or off in response to the first control signal and to adjust its speed in response to the second control signal.

[0028] Optionally, the liquid supply device further includes:

[0029] A spraying device, coupled to the liquid transmission pipeline, is configured to turn on or off in response to the first control signal, and to adjust the spray density in response to the second control signal.

[0030] The monitoring device for a wastewater treatment system provided in this disclosure includes a first device, a second device, and a control device. The first device is disposed at a first location in the wastewater treatment system, and can emit a first signal, receive a second signal reflected back from an object within the projection area of ​​the first device, and output a first monitoring signal based on the second signal. The second device is disposed at a second location in the wastewater treatment system, and can emit a third signal, receive a fourth signal reflected back from an object within the projection area of ​​the second device, and output a second monitoring signal based on the fourth signal. The control device is communicatively coupled to both the first and second devices, and can output a first control signal in response to the first and / or second monitoring signals. Determining whether to supply a regulator for wastewater treatment to the wastewater treatment system based on the first monitoring signal output by the first device at the first location and the second monitoring signal output by the second device at the second location can effectively reduce the probability of overflow during the wastewater treatment process. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0032] Figure 1 An example diagram of the structure of an organic treatment unit in a wastewater treatment system is shown.

[0033] Figure 2 A structural example diagram of a monitoring device for a wastewater treatment system, consistent with some embodiments of this disclosure, is shown.

[0034] Figure 3 An example diagram is shown illustrating the installation location of a monitoring device for a wastewater treatment system, consistent with some embodiments of this disclosure, within the wastewater treatment system.

[0035] Figure 4 An example diagram of the installation location of another monitoring device for a wastewater treatment system, consistent with some embodiments of this disclosure, is shown.

[0036] Figure 5 An example diagram of the installation location of another monitoring device for a wastewater treatment system, consistent with some embodiments of this disclosure, is shown.

[0037] Figure 6 A structural example diagram of another monitoring device for a wastewater treatment system, consistent with some embodiments of this disclosure, is shown.

[0038] Figure 7 An example diagram of the installation location of another monitoring device for a wastewater treatment system, consistent with some embodiments of this disclosure, is shown.

[0039] Figure 8 An example diagram of signal transmission and reception of a third device consistent with some embodiments of this disclosure is shown.

[0040] Figure 9 An example diagram of the installation location of another monitoring device for a wastewater treatment system, consistent with some embodiments of this disclosure, is shown. Detailed Implementation

[0041] As described in the background section, existing wastewater treatment systems are prone to overflows during maintenance, which not only pollute the environment but also damage the system.

[0042] To facilitate understanding, the following section uses the organic treatment unit in a wastewater treatment system as an example to briefly introduce the overflow phenomenon that occurs during the maintenance of the organic treatment unit.

[0043] Figure 1 A schematic diagram illustrating the structure of an organic treatment unit in a wastewater treatment system is shown. (Refer to...) Figure 1 The organic treatment unit may include an organic equalization tank T1, a hydrolysis acidification tank T2, an anaerobic tank T3, an aerobic tank T4, and a membrane bioreactor (MBR) tank T5. After treatment in the organic equalization tank T1, hydrolysis acidification tank T2, anaerobic tank T3, and aerobic tank T4, the organic wastewater undergoes sludge-water separation in the MBR tank T5. To ensure the normal operation of the MBR tank and the quality of the effluent, the MBR membrane in the MBR tank needs to be backwashed periodically. Backwashing includes alkaline backwashing and acidic backwashing. During alkaline backwashing of the MBR membrane, a large amount of sludge bubbles are generated in the MBR tank. These sludge bubbles can overflow the MBR tank, causing environmental pollution and system damage.

[0044] To address the aforementioned problems, embodiments of this disclosure provide monitoring devices for wastewater treatment systems. These monitoring devices include a first device, a second device, and a control device. The first device is disposed at a first location in the wastewater treatment system, capable of emitting a first signal, receiving a second signal reflected back from an object within the projection area of ​​the first device, and outputting a first monitoring signal based on the second signal. The second device is disposed at a second location in the wastewater treatment system, capable of emitting a third signal, receiving a fourth signal reflected back from an object within the projection area of ​​the second device, and outputting a second monitoring signal based on the fourth signal. The control device is communicatively coupled to both the first and second devices, and can output a first control signal in response to the first and / or second monitoring signals. Determining whether to supply a regulator for wastewater treatment to the wastewater treatment system based on the first monitoring signal output by the first device at the first location and the second monitoring signal output by the second device at the second location can effectively reduce the probability of overflow during the wastewater treatment process.

[0045] To enable those skilled in the art to better understand and implement the embodiments of this disclosure, the concepts, schemes, principles, and advantages of the embodiments of this disclosure are described in detail below with reference to the accompanying drawings and through specific application examples.

[0046] Figure 2 A structural example diagram of a monitoring device for a wastewater treatment system, consistent with some embodiments of this disclosure, is shown. In some embodiments, reference is made to... Figure 2 The monitoring device A may include a first device A1, a second device A2, and a control device A0.

[0047] The first device A1 can be installed at a first position in the wastewater treatment system. It can emit a first signal, receive a second signal reflected back by an object in the projection area of ​​the first device A1, and output a first monitoring signal based on the second signal.

[0048] The projection area refers to the effective working range of the first device. Specifically, the projection area can refer to the area that the first signal can actually reach.

[0049] The second device A2 can be set at the second position of the wastewater treatment system. It can emit a third signal, receive a fourth signal reflected back by an object in the projection area of ​​the second device A2, and output a second monitoring signal based on the fourth signal. The first device A1 and the second device A2 maintain a preset distance in the first direction, and the second device A2 is located below the first device A1.

[0050] The control device A0 is communicatively coupled to the first device A1 and the second device A2 respectively, and can output a first control signal in response to the first monitoring signal and / or the second monitoring signal. The first control signal can control whether to supply the wastewater treatment system with a conditioning agent for wastewater treatment.

[0051] The monitoring device described in the above embodiment determines whether to supply a regulator for wastewater treatment to the wastewater treatment system based on a first monitoring signal output by the first device at a first position and a second monitoring signal output by the second device at a second position. This can effectively reduce the probability of overflow in the wastewater treatment system during the treatment process.

[0052] Figure 3 A diagram illustrating the installation location of a monitoring device for a wastewater treatment system, consistent with some embodiments of this disclosure, is shown. (Refer to...) Figure 3 In some implementations, monitoring device A can be installed in the MBR tank B of the wastewater treatment system. A first device A1 can be positioned at a first location h1 in the MBR tank B. A second device A2 can be positioned at a second location h2 in the MBR tank B. The first device A1 and the second device A2 maintain a preset distance h1-h2 in a first direction y. The second device A2 is located below the first device A1.

[0053] In some embodiments, the first direction y can be perpendicular to the bottom surface of the MBR tank B.

[0054] In some embodiments, continue to refer to Figure 3 The first position h1 can be located below the overflow outlet B1 of the MBR tank B. For example, the first position h1 can be located 10 cm below the overflow outlet B1 of the MBR tank B.

[0055] It is understood that the embodiments disclosed herein do not impose specific limitations on the first position. The above embodiments are merely illustrative. In some embodiments, the first position may be located at other positions such as 5cm or 15cm below the overflow outlet of the MBR tank.

[0056] In some embodiments, the first location may include at least one first point, and the first device may include at least one first sensing device, which may be disposed at the corresponding first point.

[0057] In some embodiments, the first location may include a plurality of first points, and the first device may include a plurality of first sensing devices. The plurality of first sensing devices may be respectively set at the corresponding first points, and may respectively emit a first signal, receive a second signal reflected back by an object in the projection area of ​​the first sensing device, and output a first monitoring signal based on the second signal.

[0058] For example, continue to refer to Figure 3 The first position h1 may include first points h11, h12, h13, and h14. The first device A1 may include first sensing devices A11, A12, A13, and A14. First sensing device A11 may be located at first point h11. First sensing device A12 may be located at first point h12. First sensing device A13 may be located at first point h13. First sensing device A14 may be located at first point h14.

[0059] In some embodiments, multiple first points may be located on the same plane.

[0060] For example, continue to refer to Figure 3 The first points h11, h12, h13 and h14 are all located on a plane with a vertical distance of h1 from the bottom surface of the MBR tank B.

[0061] By employing the above embodiments, by placing multiple first sensing devices at different first points located on the same plane, the coverage of the total projection area of ​​the multiple first sensing devices on the same plane can be improved, thereby improving the accuracy of the output first monitoring signal.

[0062] In some embodiments, the plurality of first points may be located on different planes.

[0063] For example, refer to Figure 4The diagram shows an example of the installation location of a monitoring device for a wastewater treatment system, consistent with some embodiments of this disclosure. In this embodiment, the first location includes any position between a plane with a vertical distance h1 from the bottom surface of the MBR tank B and a plane with a vertical distance h3 from the bottom surface of the MBR tank B. First sensing devices A11 and A13 are located on the plane with a vertical distance h1 from the bottom surface of the MBR tank B. First sensing devices A12 and A14 are located on the plane with a vertical distance h3 from the bottom surface of the MBR tank B.

[0064] By employing the above embodiments, by placing multiple first sensing devices at different first points located on different planes, the randomness of the first monitoring signal output by the first sensing devices can be reduced, thereby improving the accuracy of the output first monitoring signal.

[0065] In some embodiments, the second signal is obtained by reflection from an object within the projection area of ​​the first device, and the output of a first monitoring signal based on the second signal can be used to indicate whether the object is present, and output a preset level value, the preset level value including a preset high level and a preset low level.

[0066] In some embodiments, the first sensing device may include an ultrasonic sensor. The first signal may include an ultrasonic signal.

[0067] For example, continue to refer to Figure 3 The first sensing devices A11, A12, A13, and A14 are all ultrasonic sensors. When the MBR membrane is backwashed alkaline in the MBR tank B, each ultrasonic sensor emits an ultrasonic signal. When mud bubbles generated by alkaline backwashing appear in a plane at a vertical distance h1 from the bottom surface of the MBR tank B, the ultrasonic sensors receive the ultrasonic signal reflected back by the mud bubbles, i.e., the second signal. Then, the ultrasonic sensors output a first monitoring signal, indicating that mud bubbles have been detected. In some embodiments, the first monitoring signal may include a high level and a low level. For example, when mud bubbles are detected, the ultrasonic sensors output a high level; when no mud bubbles are detected, the ultrasonic sensors output a low level.

[0068] In some embodiments, the first sensing device may include a photoelectric sensor. The first signal may include an optical signal.

[0069] For example, continue to refer to Figure 3The first sensing devices A11, A12, A13, and A14 are all photoelectric sensors. When the MBR membrane is backwashed alkaline in the MBR tank B, each photoelectric sensor emits a light signal. When mud bubbles generated by alkaline backwashing appear in a plane at a vertical distance h1 from the bottom surface of the MBR tank B, the photoelectric sensors receive the light signal reflected back by the mud bubbles, i.e., the second signal. Then, the photoelectric sensors output a first monitoring signal, indicating that mud bubbles have been detected. In some embodiments, the first monitoring signal may include a high level and a low level. For example, when mud bubbles are detected, the photoelectric sensors output a high level; when no mud bubbles are detected, the photoelectric sensors output a low level.

[0070] It is understood that the present disclosure does not impose specific limitations on the number and type of the first sensing devices. The above embodiments are merely illustrative examples.

[0071] In some embodiments, the second location may include at least one second point, and the second device may include at least one second sensing device, which may be disposed at the corresponding second point.

[0072] In some embodiments, the second location may include a plurality of second points, and the second device may include a plurality of second sensing devices. The plurality of second sensing devices may be respectively disposed at the corresponding second points, and may respectively emit a third signal, receive a fourth signal reflected back by an object in the projection area of ​​the second sensing device, and output a second monitoring signal based on the fourth signal.

[0073] For example, continue to refer to Figure 3 The second position h2 may include second points h21, h22, h23, and h24. The second device A2 may include second sensing devices A21, A22, A23, and A24. Second sensing device A21 may be located at second point h21. Second sensing device A22 may be located at second point h22. Second sensing device A23 may be located at second point h23. Second sensing device A24 may be located at second point h24.

[0074] In some embodiments, multiple second points may be located on the same plane.

[0075] For example, continue to refer to Figure 3 The second points h21, h22, h23 and h24 are all located on a plane with a vertical distance of h2 from the bottom surface of the MBR tank B.

[0076] By employing the above embodiments, by placing multiple second sensing devices at different second points located on the same plane, the coverage of the total projection area of ​​the multiple second sensing devices on the same plane can be improved, thereby improving the accuracy of the output second monitoring signal.

[0077] In some embodiments, the plurality of second points may be located on different planes.

[0078] For example, refer to Figure 5 The diagram shown illustrates an example of the installation location of a monitoring device for a wastewater treatment system, consistent with some embodiments of this disclosure. In this embodiment, the second location includes any position between a plane with a vertical distance h2 from the bottom surface of the MBR tank B and a plane with a vertical distance h4 from the bottom surface of the MBR tank B. The second sensing device A23 is located on the plane with a vertical distance h2 from the bottom surface of the MBR tank B. The second sensing devices A21, A22, and A24 are located on the plane with a vertical distance h4 from the bottom surface of the MBR tank B.

[0079] By employing the above embodiments, by placing multiple second sensing devices at different second points located on different planes, the randomness of the second monitoring signal output by the second sensing devices can be reduced, thereby improving the accuracy of the output second monitoring signal.

[0080] In some embodiments, the fourth signal is obtained by reflection from an object within the projection area of ​​the second device. The output of a second monitoring signal based on the fourth signal can be used to indicate whether the object is present, and output a preset level value, which includes a preset high level and a preset low level.

[0081] In some embodiments, the second sensing device may include an ultrasonic sensor. The third signal may include ultrasonic waves.

[0082] For example, continue to refer to Figure 3 The second sensing devices A21, A22, A23, and A24 are all ultrasonic sensors. When the MBR membrane is backwashed alkaline in the MBR tank B, each ultrasonic sensor emits an ultrasonic signal. When sludge bubbles generated by alkaline backwashing appear in a plane at a vertical distance h2 from the bottom surface of the MBR tank B, the ultrasonic sensors receive the ultrasonic signal reflected back from the sludge bubbles, i.e., the fourth signal. Then, the ultrasonic sensors output a second monitoring signal, indicating that sludge bubbles have been detected. In some embodiments, the second monitoring signal may include a high level and a low level. For example, when sludge bubbles are detected, the ultrasonic sensor outputs a high level; when no sludge bubbles are detected, the ultrasonic sensor outputs a low level.

[0083] In some embodiments, the second sensing device may include a photoelectric sensor. The second signal may include an optical signal.

[0084] For example, continue to refer to Figure 3 The second sensing devices A21, A22, A23, and A24 are all photoelectric sensors. When the MBR membrane is backwashed alkaline in the MBR tank B, each photoelectric sensor emits a light signal. When mud bubbles generated by alkaline backwashing appear in a plane with a vertical distance h2 from the bottom surface of the MBR tank B, the photoelectric sensor receives the light signal reflected back by the mud bubbles, i.e., the fourth signal. Then, the photoelectric sensor outputs a second monitoring signal, indicating that mud bubbles have been detected. In some embodiments, the second monitoring signal may include a high level and a low level. For example, when mud bubbles are detected, the photoelectric sensor outputs a high level; when no mud bubbles are detected, the photoelectric sensor outputs a low level.

[0085] It is understood that the present disclosure does not impose specific limitations on the number and type of the second sensing devices. The above embodiments are merely illustrative examples.

[0086] In some embodiments, the control device A0 may output a first control signal in response to a first monitoring signal output by the first device, the first control signal being able to control whether to supply a conditioning agent for wastewater treatment to the wastewater treatment system.

[0087] For example, the first control signal may include a high level and a low level. When the first monitoring signal output by the first device indicates that an object has been detected, the control device A0 may respond to the first monitoring signal by outputting a high level, which is used to control the supply of conditioning agent for wastewater treatment to the wastewater treatment system; when the first monitoring signal output by the first device indicates that no object has been detected, the control device A0 may respond to the first monitoring signal by outputting a low level, which is used to control the non-supply of conditioning agent for wastewater treatment to the wastewater treatment system. For example, when alkaline backwashing is performed on the MBR membrane in MBR tank B, the detected object is sludge bubbles. In this case, the conditioning agent for wastewater treatment may include a defoamer. Supplying defoamer to MBR tank B according to the first monitoring signal output by the first device can eliminate sludge bubbles before they reach the overflow port B1 of MBR tank B, thereby reducing the probability of sludge bubbles overflowing from the overflow port.

[0088] In some embodiments, the control device A0 may output a first control signal in response to a first monitoring signal output by a first device and a second monitoring signal output by a second device. The first control signal may control whether to supply a conditioning agent for wastewater treatment to the wastewater treatment system.

[0089] For example, after the control device A0 responds to the first monitoring signal output by the first device indicating that an object has been detected and outputs a high level to control the supply of conditioning agent for wastewater treatment to the wastewater treatment system, the control device A0 may also respond to the second monitoring signal output by the second device indicating that no object has been detected and output a low level to control the cessation of the supply of conditioning agent for wastewater treatment to the wastewater treatment system.

[0090] In some embodiments, the control device A0 may include one or more processors.

[0091] Processors may include, but are not limited to, hardware circuits implemented with application-specific integrated circuits (ASICs), programmable logic devices (PLDs), microcontroller units (MCUs), microprocessor units (MPUs), digital signal processors (DSPs), or central processing units (CPUs). For example, hardware circuits implemented with PLDs may include field-programmable gate arrays (FPGAs). When control device A0 includes multiple processors, the types of processors may be the same or different. For example, control device A0 may include MCUs and FPGAs. Control device A0 may include MCUs, FPGAs, and CPUs. Control device A0 may include MCUs, DSPs, and FPGAs. Alternatively, control device A0 may include CPUs and FPGAs, and so on. When control device A0 includes multiple processors, these processors may be configured separately, partially integrated, or fully integrated. For example, control device A0 may be implemented as a system-on-chip (SoC) or an ASIC.

[0092] Figure 6 A structural example diagram of another monitoring device for a wastewater treatment system, consistent with some embodiments of this disclosure, is shown. In some embodiments, reference is made to... Figure 6 The monitoring device A may also include a third device A3, which may be installed at a third location in the wastewater treatment system.

[0093] In some embodiments, refer to Figure 7The diagram shown illustrates an example installation location of a monitoring device for a wastewater treatment system, consistent with some embodiments of this disclosure. The third device A3 can be positioned at the third location h5 of the MBR tank B. In this embodiment, the third location h5 is located between the first location h1 and the second location h2.

[0094] In some embodiments, the third position h5 may include a plurality of third points, and the third device A3 may include a plurality of third sensing devices and a processing device. The plurality of third points may be located on the same plane. The plurality of third sensing devices may be respectively disposed at corresponding third points, and the plurality of third sensing devices may be communicatively coupled to each other in pairs. Each third sensing device may transmit a fifth signal and receive the fifth signals transmitted by the communicatively coupled third sensing devices.

[0095] For example, continue to refer to Figure 7 The third position h5 may include third points h51, h52, h53, h54, h55, h56, h57, and h58. The third device A3 may include third sensing devices A31, A32, A33, A34, A35, A36, A37, and A38. Third sensing device A31 may be located at third point h51. Third sensing device A32 may be located at third point h52. Third sensing device A33 may be located at third point h53. Third sensing device A34 may be located at third point h54. Third sensing device A35 may be located at third point h55. Third sensing device A36 may be located at third point h56. The third sensor A37 can be set at the third point h57. The third sensor A38 can be set at the third point h58.

[0096] In some embodiments, the third sensing device may include a wireless radio frequency signal transceiver node, and the fifth signal may include a wireless radio frequency signal.

[0097] For example, refer to Figure 8 The diagram shown is an example of a signal transceiver for a third device consistent with some embodiments of this disclosure, and is taken in conjunction with reference to... Figure 7 The third sensing devices A31 to A38 are all wireless radio frequency signal transceiver nodes. When each pair of wireless radio frequency signal transceiver nodes communicates with each other, a wireless link is formed between each pair of transceiver nodes, such as... Figure 8 As shown by the dashed line, multiple wireless links will be formed at the third position h5.

[0098] In some embodiments, when the wastewater treatment system is not performing wastewater treatment tasks, each third sensing device can transmit a sixth signal and receive a sixth signal transmitted by mutually communicatively coupled third sensing devices. Then, the processing device can acquire the sixth signals received by each third sensing device to generate a reference signal.

[0099] For example, continue to refer to Figure 8 When the wastewater treatment system is not performing wastewater treatment tasks, that is, when there are no objects in MBR pool B, each wireless radio frequency signal transceiver node transmits wireless radio frequency signals to communicate with each other. A stable electromagnetic field will be formed in MBR pool B, and the wireless radio frequency signals received by each wireless radio frequency signal transceiver node can be used as reference signals.

[0100] In some embodiments, the processing device may acquire the fifth signal received by each third sensing device and output a third monitoring signal based on the fifth signal received by each third sensing device and a reference signal.

[0101] For example, continue to refer to Figure 8 When the MBR membrane is backwashed alkaline in MBR tank B, each wireless radio frequency (RF) transceiver node transmits RF signals and communicates with each other. When the mud bubbles enter the projection area of ​​the third device, i.e., the area covered by the wireless link, it will cause changes in the wireless link. For example, the change in the wireless link can be specifically reflected in the change of the received signal strength value relative to the reference signal.

[0102] In some embodiments, the processing device may include one or more processors.

[0103] Processors may include, but are not limited to, hardware circuits implemented with application-specific integrated circuits (ASICs), programmable logic devices (PLDs), microcontroller units (MCUs), microprocessor units (MPUs), digital signal processors (DSPs), or central processing units (CPUs). For example, hardware circuits implemented with PLDs may include field-programmable gate arrays (FPGAs). When a processing device includes multiple processors, the types of processors can be the same or different. For example, a processing device may include MCUs and FPGAs. A processing device may include MCUs, FPGAs, and CPUs. A processing device may include MCUs, DSPs, and FPGAs. Alternatively, a processing device may include CPUs and FPGAs, and so on. When a processing device includes multiple processors, these processors may be configured separately, partially integrated, or fully integrated. For example, the control device A0 may be implemented as a system-on-chip (SoC) or an ASIC.

[0104] In some embodiments, the third monitoring signal may include the number of wireless links that have changed.

[0105] In some embodiments, the control device may output a second control signal in response to a third monitoring signal, the second control signal being able to determine a supply mode for supplying the regulator to the wastewater treatment system.

[0106] For example, the second control signal may include a high level and a low level. When the number of changing wireless links is greater than or equal to a preset threshold, the control device outputs a high level, which is used to supply the regulator to the wastewater treatment system in a high-flow-rate mode. When the number of changing wireless links is less than the preset threshold, the control device outputs a low level, which is used to supply the regulator to the wastewater treatment system in a low-flow-rate mode.

[0107] The monitoring devices employing the above embodiments include a first device, a second device, a third device, and a control device. The third device can be located at a third position in the wastewater treatment system, and this third position may include multiple third points. The third device may include multiple third sensing devices and a processing device, and the multiple third points may be located on the same plane. The multiple third sensing devices can be respectively located at corresponding third points. The multiple third sensing devices can be communicatively coupled to each other in pairs, and each third sensing device can transmit a fifth signal and receive the fifth signals transmitted by the communicatively coupled third sensing devices. The processing device can acquire the fifth signals received by each third sensing device and, based on the fifth signals received by each third sensing device and a reference signal, output a third monitoring signal. Then, the control device can respond to the third monitoring signal and output a second control signal, which can determine the supply mode for supplying the regulator to the wastewater treatment system. On the one hand, determining whether to supply the wastewater treatment system with a regulator for wastewater treatment based on the first monitoring signal output by the first device at the first position and the second monitoring signal output by the second device at the second position can effectively reduce the probability of overflow during the wastewater treatment process. On the other hand, since multiple third sensing devices can be communicatively coupled to each other, the third monitoring signal output by the third device can not only monitor whether an object is present, but also monitor the distribution density of the object. Therefore, the supply mode of the regulator to the wastewater treatment system can be determined based on the third monitoring signal, and the regulator dosage can be matched with the distribution density of the object, thereby further reducing the probability of overflow in the wastewater treatment system during the treatment process.

[0108] Reference Figure 9 The diagram shows an example of the installation location of a monitoring device for a wastewater treatment system, consistent with some embodiments of this disclosure. In some embodiments, refer to... Figure 9 The monitoring device A may further include a liquid supply device A4, which is communicatively coupled to the control device A0. The liquid supply device A4 may include:

[0109] Liquid storage device A41.

[0110] Liquid transfer pipeline A42 is installed between liquid storage device A41 and wastewater treatment system.

[0111] Valve A43, coupled to liquid transmission line A42, can be opened or closed in response to a first control signal, and the valve opening degree can be adjusted in response to a second control signal.

[0112] Pump A44, coupled to liquid transfer line A42, can be turned on or off in response to a first control signal, and its speed can be adjusted in response to a second control signal.

[0113] Using the above embodiments, by controlling the opening or closing of the valve, it is possible to control whether a conditioning agent for wastewater treatment is supplied to the wastewater treatment system. By adjusting the valve opening and the pump speed, the dosage of the conditioning agent supplied to the wastewater treatment system can be adjusted.

[0114] In some embodiments, continue to refer to Figure 9 The liquid supply device A4 may also include:

[0115] The spray device A45, coupled to the liquid transmission line A42, can be turned on or off in response to a first control signal, and the spray density can be adjusted in response to a second control signal.

[0116] Using the above embodiments, the dosage of the regulator supplied to the wastewater treatment system can be adjusted by adjusting the spray density of the spraying device.

[0117] In the description of this disclosure, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0118] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0119] While the embodiments disclosed above are described in this disclosure, this application is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of this invention; therefore, the scope of protection of this application should be determined by the scope defined in the claims.

Claims

1. A monitoring device for a wastewater treatment system, characterized in that, The monitoring device includes a first device, a second device, and a control device, wherein: The first device is disposed at a first position in the wastewater treatment system and is configured to transmit a first signal, receive a second signal reflected back by an object within the projection area of ​​the first device, and output a first monitoring signal based on the second signal; The second device is disposed at a second position in the wastewater treatment system and is configured to transmit a third signal, receive a fourth signal reflected back by an object within the projection area of ​​the second device, and output a second monitoring signal based on the fourth signal; the first device and the second device maintain a preset distance in a first direction, and the second device is located below the first device; A third device is disposed at a third location in the wastewater treatment system, the third location comprising multiple third points; the third device includes multiple third sensing devices and a processing device; wherein: the multiple third points are located on the same plane; the multiple third sensing devices are respectively disposed at corresponding third points, the multiple third sensing devices are configured to be mutually communicatively coupled in pairs, and each of the multiple third sensing devices is configured to transmit a fifth signal and receive the fifth signals transmitted by the mutually communicatively coupled third sensing devices; the processing device is configured to acquire the fifth signals received by each third sensing device and, based on the fifth signals received by each third sensing device, process the data. The sensing device receives a fifth signal and a reference signal, and outputs a third monitoring signal. When the wastewater treatment system is not performing wastewater treatment tasks, each of the third sensing devices is configured to transmit a sixth signal and receive the sixth signal transmitted by mutually communicatively coupled third sensing devices. The processing device is configured to acquire the sixth signal received by each of the third sensing devices to generate the reference signal. The third sensing device is a wireless radio frequency signal transceiver node, the fifth signal is a wireless radio frequency signal, and when the wireless radio frequency signal transceiver nodes communicate with each other, a wireless link is formed between each pair of transceiver nodes. The control device is communicatively coupled to the first device and the second device, respectively, and is configured to output a first control signal in response to the first monitoring signal and / or the second monitoring signal, wherein the first control signal is configured to control whether to supply a regulator for wastewater treatment to the wastewater treatment system; and is configured to output a second control signal in response to the third monitoring signal, wherein the second control signal is configured to determine the supply mode of the regulator to the wastewater treatment system; wherein the third monitoring signal is the number of changing wireless links, and when the number of changing wireless links is greater than or equal to a preset threshold, the second control signal is used to supply the regulator to the wastewater treatment system in a high-flow mode, and when the number of changing wireless links is less than the preset threshold, the second control signal is used to supply the regulator to the wastewater treatment system in a low-flow mode.

2. The monitoring device according to claim 1, characterized in that, The first location includes at least one first point, and the first device includes at least one first sensing device, which is disposed at the corresponding first point.

3. The monitoring device according to claim 2, characterized in that, The first location includes multiple first points, and the first device includes multiple first sensing devices; the multiple first sensing devices are respectively disposed at the corresponding first points, and are respectively configured to emit a first signal, receive a second signal reflected back by an object in the projection area of ​​the first sensing device, and output a first monitoring signal based on the second signal.

4. The monitoring device according to claim 3, characterized in that, The plurality of first points are located on different planes; or, the plurality of first points are located on the same plane.

5. The monitoring device according to claim 1, characterized in that, The second position includes at least one second point, and the second device includes at least one second sensing device, which is disposed at the corresponding second point.

6. The monitoring device according to claim 5, characterized in that, The second location includes multiple second points, and the second device includes multiple second sensing devices; the multiple second sensing devices are respectively set at the corresponding second points, and are respectively configured to emit a third signal, receive a fourth signal reflected back by an object in the projection area of ​​the second sensing device, and output a second monitoring signal based on the fourth signal.

7. The monitoring device according to claim 6, characterized in that, The plurality of second points are located in different planes; or, the plurality of second points are located in the same plane.

8. The monitoring device according to claim 1, characterized in that, It also includes a liquid supply device, communicatively coupled to the control device, the liquid supply device comprising: Liquid storage devices; A liquid transmission pipeline is installed between the liquid storage device and the wastewater treatment system; A valve, coupled to the liquid transmission pipeline, is configured to open or close in response to the first control signal, and to adjust the valve opening in response to the second control signal; The pump, coupled to the liquid transfer line, is configured to turn on or off in response to the first control signal and to adjust its speed in response to the second control signal.

9. The monitoring device according to claim 8, characterized in that, The liquid supply device further includes: A spraying device, coupled to the liquid transmission pipeline, is configured to turn on or off in response to the first control signal, and to adjust the spray density in response to the second control signal.

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