Miter gate multi-dimensional online monitoring system

Abstract

The utility model discloses a miter gate multi-dimensional on-line monitoring system, which comprises a sensor monitoring module group, the sensor monitoring module group comprises at least two different sensor groups, each sensor group at least comprises a sensor, and each sensor is adhered and fixed at a corresponding measuring point position on a gate by adopting a metal welding structural adhesive; the data transmission module comprises a data acquisition box, the data acquisition box is connected with each sensor in the sensor monitoring module through a twisted-pair shielding cable, the twisted-pair shielding cable is laid through a fully-closed sand-proof and waterproof bridge, and the data acquisition box is further connected with the data processing module; the data transmission module is used for transmitting data acquired by the sensor monitoring module to the data processing module; and the data processing module is used for analyzing and processing the acquired data detected by the sensor monitoring module. According to the utility model, the miter gate can be detected and analyzed from different dimension directions, and meanwhile, the sensor and the data transmission module are connected through the twisted-pair shielding cable, so that stable data transmission is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to water conservancy project safety monitoring technical field especially, relate to a kind of herringbone gate multidimensional online monitoring system. BACKGROUND

[0002] When ship lock operates, herringbone gate can be damaged under the joint influence of water pressure, water flow disturbance and ship impact and other factors, and under the action of long-term operation and water flow disturbance, typical faults such as bottom shaft wear, pull rod fracture and local weld cracking will occur in herringbone gate. In order to ensure the safe operation of ship lock, operation and maintenance of herringbone gate of ship lock are needed. At present, the traditional ship lock monitoring technology mainly uses single sensor or manual inspection method, which has problems such as insufficient data dimension, delayed early warning, complex installation and so on. In the prior art, the sensor installation process is also easily affected by the environment, and the installation position of the sensor is also unrestricted, which leads to poor stability of data detection and poor stability of data transmission, thereby affecting the accuracy of monitoring. SUMMARY

[0003] In view of the deficiencies of the prior art, the utility model provides a kind of herringbone gate multidimensional online monitoring system. It can effectively realize real-time monitoring of the operation of herringbone gate, has high detection accuracy, and can significantly improve the safety of ship lock operation.

[0004] According to one aspect of the present application, a kind of herringbone gate multidimensional online monitoring system is provided, comprising,

[0005] Sensor monitoring module, including at least two different sensor groups, each sensor group includes at least one sensor, each sensor is fixed to the corresponding measuring point position on the gate by metal welding structure adhesive bonding;

[0006] Data transmission module, including data acquisition box, the data acquisition box is connected with each sensor in the sensor monitoring module by twisted pair shielded cable, the twisted pair shielded cable is laid by fully enclosed sandproof waterproof bridge, the data acquisition box is also connected with data processing module, to transmit the data obtained by the sensor monitoring module to data processing module;

[0007] Data processing module is used to analyze and process the data detected by the sensor monitoring module.

[0008] The utility model discloses a miter gate multidimensional online monitoring system through setting up at least two different sensor groups to carry out real -time online monitoring to miter gate to can realize the detection and analysis to the operation safety of miter gate from different dimensional direction, simultaneously, sensor and data transmission module are connected through twisted pair shielded cable, and twisted pair shielded cable can effectively reduce the influence of electromagnetic interference to signal, and the shielding layer further enhances the anti -interference performance, ensures the accuracy and stability of signal transmission. And in the scheme of the utility model, twisted pair shielded cable still lays through the full -enclosed spinning waterproof bridge frame, can further realize the protection of cable, and ensure the stability of data transmission. The utility model discloses a miter gate multidimensional online monitoring system can effectively realize the real -time monitoring to the operation of miter gate, and its detection precision is high, can significantly improve the ship lock operation safety.

[0009] In some embodiments, the sensor group includes a stress monitoring module, a vibration monitoring module, an operation posture monitoring module and a bottom pivot state monitoring module.

[0010] Therefore, by such setting, real-time monitoring of the miter gate from multiple different dimensions can be realized, thereby improving the accuracy of the operation state detection of the miter gate.

[0011] In some embodiments, the stress monitoring module is used for real-time acquisition of static stress and dynamic stress data of the gate, including:

[0012] The first stress sensor group is arranged at the center line position of the main pre-stressed back rod and arranged along the direction of the back rod;

[0013] The second stress sensor group is arranged at the center line position of the auxiliary pre-stressed back rod and arranged along the direction of the back rod;

[0014] The third stress sensor group is arranged at the center line position of the middle part of the top pivot rod and arranged along the direction of the rod;

[0015] The fourth stress sensor group is arranged at the junction of the bottom main beam door shaft column end plate and the bottom main beam rear flange along the direction of the water flow;

[0016] The fifth stress sensor group is arranged at the front flange and rear flange positions of the middle part of the main beam center line and arranged transversely.

[0017] Therefore, by such setting, the specific setting position of the stress sensor can be designed, so that the data obtained by the stress sensor can be more accurate when acquiring data, and the monitoring result accuracy of the whole system can be improved.

[0018] In some embodiments, the vibration monitoring module is used for real-time monitoring of the three-axis direction vibration acceleration of the gate, including:

[0019] A first acceleration sensor is arranged on the upper part of the web plate at the connecting part between the bottom pivot and the bottommost main beam, and is used to measure the vibration and acceleration in the X, Y and Z axial directions.

[0020] A second acceleration sensor is arranged at the junction between the rear flange of the bottommost main beam and the inclined column, and is used to measure the vibration and acceleration in the X, Y and Z axial directions.

[0021] A third acceleration sensor is arranged at the junction between the rear flange of the topmost main beam and the inclined column, and is used to measure the vibration and acceleration in the X, Y and Z axial directions.

[0022] Therefore, by arranging the acceleration sensors in this way, the data obtained by the acceleration sensors can be more accurate when acquiring data, and the accuracy of the monitoring results of the overall system can be improved.

[0023] In some embodiments, the operation posture monitoring module is used to monitor the gate tilt angle and operation posture in real time, and includes:

[0024] An inclination sensor is arranged on the downstream side of the inclined column at the top of the gate.

[0025] Therefore, by arranging the inclination sensor in this way, the data obtained by the inclination sensor can be more accurate when acquiring data, and the accuracy of the monitoring results of the overall system can be improved.

[0026] In some embodiments, the bottom pivot state monitoring module is used to monitor the running state of the bottom pivot bearing in real time, and includes:

[0027] An acoustic emission sensor is arranged on the upper part of the web plate at the connecting part between the bottom pivot and the bottommost main beam.

[0028] Therefore, by arranging the acoustic emission sensor in this way, the data obtained by the acoustic emission sensor can be more accurate when acquiring data, and the accuracy of the monitoring results of the overall system can be improved.

[0029] In some embodiments, the data acquisition box and the data processing module communicate data through wired transmission or wireless communication transmission.

[0030] Therefore, data transmission between the data acquisition box and the data processing module can be achieved through wired communication or wireless communication.

[0031] In some embodiments, the data processing module includes a local control cabinet.

[0032] In some embodiments, an alarm module is further included, which is connected with the data processing module to start or stop according to the analysis and processing result of the data processing module.

[0033] In this way, by such arrangement, alarm reminding can be performed when data monitoring is abnormal.

[0034] In some embodiments, the alarm module includes an alarm lamp and / or a buzzer. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 A principle block diagram of a multi-dimensional online monitoring system of a miter gate according to an embodiment of the present application;

[0036] Figure 2 A principle block diagram of a multi-dimensional online monitoring system of a miter gate according to another embodiment of the present application;

[0037] Figure 3 A sensor installation and arrangement position intention of a sensor monitoring module of a multi-dimensional online monitoring system of a miter gate according to an embodiment of the present application;

[0038] Figure 4 A general arrangement drawing of a multi-dimensional online monitoring system of a miter gate according to an embodiment of the present application.

[0039] Marked with reference numerals: 1, sensor monitoring module; 11, stress monitoring module; 12, vibration monitoring module; 13, running posture monitoring module; 14, bottom pivot state monitoring module; 2, data transmission module; 3, data processing module; 4, alarm module; 51, main prestressed back pull rod; 52, auxiliary prestressed back pull rod; 53, oblique joint column; 54, main beam; 55, bottom pivot; 56, top pivot pull rod. DETAILED DESCRIPTION

[0040] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0041] In the description of the present application, it needs to be understood that if the terms "center", "middle", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The features defined as "first", "second" are used to distinguish the feature names, not to have special meanings, and in addition, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0042] In the description of the present application, it needs to be explained that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] It also needs to be explained that in this paper, the terms "including", "containing", not only include those elements, but also include other elements not explicitly listed, or include elements inherent to the process, method, article or device. Without more limitations, the elements defined by the sentence "including" do not exclude the presence of other identical elements in the process, method, article or device including the elements. The terms used in this paper are generally the terms commonly used by those skilled in the art, and if they are inconsistent with the commonly used terms, the terms in this paper shall prevail.

[0044] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0045] The present application will be described in further detail below with reference to the drawings.

[0046] Figure 1 The multi-dimensional online monitoring system of the miter gate is shown in an embodiment of the utility model, referring to Figure 1 The multi-dimensional online monitoring system of the miter gate comprises a sensor monitoring module 1, a data transmission module 2 and a data processing module 3. The sensor monitoring module 1 comprises at least two different sensor groups, each sensor group comprising at least one sensor. Each sensor is fixed to a corresponding measuring point on the gate by a metal welding structure and adhesive, so as to monitor the corresponding measuring point of the gate by the corresponding sensor. The data transmission module 2 comprises a data acquisition box, which is connected to each sensor in the sensor monitoring module 1 by a twisted shield cable. The twisted shield cable is laid by a fully enclosed sand-proof and waterproof bridge. The data acquisition box is also connected to the data processing module 3, so as to transmit the data acquired by the sensor monitoring module 1 to the data processing module 3. The data processing module 3 is connected to the data transmission module 2, so as to receive the data transmitted by the data transmission module 2 and analyze and process the data detected by the sensor monitoring module. The data related to the miter gate can be analyzed and monitored in real time.

[0047] Specifically, referring to Figure 2 The at least two different sensor groups in the sensor monitoring module 1 can comprise a stress monitoring module 11, a vibration monitoring module 12, an operating posture monitoring module 13 and a bottom pivot 55 state monitoring module 14. That is, the sensor monitoring module 1 of the utility model can only have the above two different sensor groups, or all four sensor groups. It should be noted that the type of the sensor monitoring module 1 is not limited to the above four types, and can also include other related sensor monitoring modules 1 for detecting the miter gate. The above various sensor groups each comprise at least one sensor. Since the miter gate system is large, the sensors in the corresponding sensor group are arranged on the miter gate in the form of points, lines and surfaces when detecting corresponding data, so as to achieve more accurate monitoring of the miter gate.

[0048] For the stress monitoring module 11, a plurality of armored waterproof stress sensors arranged at the locations of the gate main beam 54, back pull rod and top pivot pull rod 56 are used to collect static stress and dynamic stress data in real time. Specifically, it includes a first stress sensor group arranged at the center line position of the main pre-stressed back pull rod 51 and along the direction of the back pull rod, a second stress sensor group arranged at the center line position of the auxiliary pre-stressed back pull rod 52 and along the direction of the back pull rod, a third stress sensor group arranged at the center line position of the top pivot pull rod 56 and along the direction of the pull rod, a fourth stress sensor group arranged at the junction of the bottom end plate of the bottom main beam 54 and the rear flange of the bottom main beam 54 and along the direction of the water flow, and a fifth stress sensor group arranged at the front flange and rear flange positions of the center main beam 54 and transversely arranged. For example, referring to Figure 3 , Figure 3 The middle red part schematically shows the specific arrangement position of each stress sensor in this embodiment. In the embodiment shown in Figure 3 , the first stress sensor group specifically includes three first stress sensors arranged on the three main pre-stressed back pull rods 51 of the single-leaf miter gate shown in Figure 3 . The second stress sensor group specifically includes two second stress sensors arranged on the two main pre-stressed back pull rods 51 of the single-leaf miter gate shown in Figure 3 . The third stress sensor group specifically includes two third stress sensors arranged on the two top pivot pull rods 56 of the single-leaf miter gate shown in Figure 3 , i.e. at the upper left corner position in Figure 3 . Since the two top pivot pull rods 56 overlap each other in this view, only one third stress sensor can be seen in Figure 3 . The fourth stress sensor group specifically includes one fourth stress sensor arranged at the junction of the bottom end plate of the bottom main beam L1 of the single-leaf miter gate shown in Figure 3 and the rear flange of the main beam L1, i.e. at the lower left corner position in Figure 3 . The fifth stress sensor group specifically includes six fifth stress sensors arranged at the front flange and rear flange positions of the main beams L3, L4 and L7 in the single-leaf miter gate shown in Figure 3 . Specifically, the stress monitoring points where the stress sensors are arranged should meet the following requirements: strain monitoring points should all use armored waterproof strain gauges with a rated resistance of 120Ω, a linear expansion coefficient of not higher than 11, a base size of 21mm x 5mm, a sensitive grid length of 5mm, and a maximum water pressure of 1MPa; stress and strain collection should have an A / D sampling resolution of 18 bits or more and a total sampling frequency of 1kHz or more. The waterproof level is IP68.

[0049] For the vibration monitoring module 12, three triaxial acceleration sensors are used, which are installed at the connection part of the bottom pivot 55, the intersection of the main beam 54 and the inclined column 53, and used to measure the vibration acceleration in X, Y and Z directions. As shown in Figure 3 , Figure 3 the middle green part schematically shows the specific setting position of each acceleration sensor in this embodiment. In the embodiment shown in Figure 3 , the vibration monitoring module 12 includes a first acceleration sensor, a second acceleration sensor and a third acceleration sensor. The first acceleration sensor is arranged at the upper part of the web plate at the connection part of the bottom pivot 55 and the bottommost main beam L1, i.e. at the lower left corner in Figure 3 , to measure the vibration and acceleration in X, Y and Z directions. The second acceleration sensor is arranged at the intersection of the rear flange of the bottommost main beam L1 and the inclined column 53, i.e. at the lower right corner in Figure 3 , to measure the vibration and acceleration in X, Y and Z directions. The third acceleration sensor is arranged at the intersection of the rear flange of the topmost main beam L9 and the inclined column 53, i.e. at the upper right corner in Figure 3 , to measure the vibration and acceleration in X, Y and Z directions. Specifically, the vibration response monitoring point where the acceleration sensor is arranged should meet the following requirements: the vibration response monitoring point should use a triaxial acceleration sensor, the safe overload should be not less than 1000%, the sensitivity deviation should be not more than ±5%, the water pressure resistance should be not less than 490kPa, the corrosion-resistant material box body of the stainless steel shell, the rated capacity of the sensor should be ±5g, the flow-induced vibration acquisition should have an A / D sampling resolution of more than 24 bits, a synchronous sampling frequency of more than 125kHz, and a hardware anti-mixing filter.

[0050] For the running posture monitoring module 13, one inclination sensor is used. As shown in Figure 3 , Figure 3 the middle purple part schematically shows the specific setting position of the inclination sensor in this embodiment. In the embodiment shown in Figure 3 , the inclination sensor is arranged at the downstream side of the gate top inclined column 53. Specifically, the running posture monitoring point where the inclination sensor is arranged should meet the following requirements: the running posture monitoring point should use a full-temperature compensation high-precision current output type two-axis inclination instrument, the monitoring range should be ±10°, the monitoring axes should be X-Y two axes, the absolute accuracy should be 0.003°, the long-term stability should be 0.01°, the zero point temperature coefficient (40-85°) should be ±0.0008° / ℃, the sensitivity temperature coefficient (40-85°) should be ≤50ppm / ℃, the power-on starting time should be 0.5s, the response time should be 0.02s, the response frequency should be 1-20Hz, the anti-vibration should be 10grms, 10-1000Hz, the waterproof grade should be IP67 or above; the running posture acquisition should have an A / D sampling resolution of more than 24 bits, a synchronous sampling frequency of more than 125kHz, and a hardware anti-mixing filter.

[0051] For the bottom hinge 55 state monitoring module 14, it is composed of an acoustic emission sensor. Exemplarily, refer to Figure 3 illustrated, Figure 3 The middle blue part schematically shows the specific setting position of the acoustic emission sensor in this embodiment. In the embodiment shown, Figure 3 In the embodiment shown, the acoustic emission sensor is set on the upper part of the web at the connecting part of the bottom hinge 55 and the bottom main beam L1. Specifically, the bottom hinge 55 operation monitoring point where the acoustic emission sensor is set should meet the following requirements: using acoustic vibration sensor AVS series high-sensitivity composite sensor (picking up detection signal and vibration signal); 16-bit AD precision; synchronous sampling rate; 0-800 kHz sensitivity.

[0052] Each sensor in each of the above sensor groups is fixed to the corresponding monitoring point position on the gate by using a metal welding structure adhesive bonding when installed, so as to ensure the stability of the sensor detection information. At the same time, the arrangement of each sensor on the miter gate respectively monitors the miter gate from point, line and surface, which can effectively improve the accuracy of the monitored data, and analyzing these data can better analyze the state of the miter gate.

[0053] Each sensor in the sensor monitoring module 1 and the data transmission module 2 are connected by a twisted shield cable. The twisted shield cable can effectively reduce the influence of electromagnetic interference on the signal, and the shielding layer further enhances the anti-interference performance, ensuring the accuracy and stability of signal transmission. At the same time, the twisted shield cable is laid by a fully enclosed spinning waterproof bridge, which can further protect the cable and ensure the stability of data transmission. In addition, the sensors are set on the miter gate, and the data transmission between the sensors and the data transmission module 2 is carried out through the cable, which can effectively avoid the influence of the miter gate and the water flow environment on the wireless transmission of the signal, ensuring the accuracy and continuity of the obtained data, and avoiding the discontinuous situation.

[0054] The data processing module 3 can be a remote server or a server system set near the miter gate. In some embodiments, the data processing module 3 can be set as a local control cabinet, and a local monitoring terminal is set in the local control cabinet to realize the analysis and processing of data locally. The data acquisition box and the local control cabinet can be transmitted by wired or wireless communication. Exemplarily, refer to Figure 4 illustrated, Figure 4 In the embodiment shown, the miter gate includes four leaves, and each leaf of the miter gate is provided with the above-mentioned sensor monitoring module 1 and data acquisition box. In this embodiment, the local control cabinet is provided with one, and each data acquisition box realizes data transmission with the local control cabinet by wired transmission or wireless transmission.

[0055] The data processing module 3 can analyze and process the data detected by the sensor monitoring module 1 to determine the current state of the mitre gate. In some possible embodiments, an alarm module 4 can be further included, which is connected with the data processing module 3 to be started or stopped according to the analysis and processing result of the data processing module 3. The alarm module 4 can be specifically set as an alarm lamp and / or a buzzer, etc. Specifically, the data processing module 3 can be internally provided with evaluation criteria of various data indexes. Exemplarily, the built-in stress evaluation criteria can be set as static stress ≥ 80%σ warning, ≥ 90%σ alarm; dynamic stress ≥ 10%σ warning, ≥ 20%σ alarm, and the vibration evaluation criteria can divide the hazard level based on the amplitude-frequency formula and the displacement threshold value, and the specific formula is as follows:

[0056] logA < 3.14-1.16logf

[0057] Wherein A is the vibration amplitude, and f is the vibration frequency. According to the monitoring data in the flood process, the A-f curve diagram is obtained to determine whether the amplitude and frequency of the gate vibration response meet the formula requirements. When the formula relationship is not met, it indicates that the vibration characteristic state of the gate is poor, and timely warning and alarm should be given.

[0058] The mitre gate multi-dimensional online monitoring system of the utility model can realize detection and analysis on the operation safety of the mitre gate from different dimensional directions, meanwhile, the sensor and the data transmission module 2 are connected through the twisted shielded cable, the twisted shielded cable can effectively reduce the influence of electromagnetic interference on the signal, the shielding layer further enhances the anti-interference performance, and ensures the accuracy and stability of signal transmission. In the scheme of the utility model, the twisted shielded cable is further laid through the fully-enclosed spinning waterproof bridge, which can further realize protection of the cable and ensure the stability of data transmission. The mitre gate multi-dimensional online monitoring system of the utility model can effectively realize real-time monitoring on the operation of the mitre gate, has high detection precision, and can significantly improve the operation safety of the ship lock.

[0059] The above only describes some embodiments of the utility model. For ordinary skilled persons in the art, without departing from the creative concept of the utility model, a number of modifications and improvements can be made, which all belong to the protection scope of the utility model.

Claims

1. A multi-dimensional online monitoring system for miter gates, characterized in that: The utility model relates to a real-time monitoring system for movable gate, which comprises the following modules: a sensor monitoring module, which comprises at least two different sensor groups, each sensor group comprising at least one sensor, and each sensor is fixed to a corresponding measuring point on the gate by metal welding structure and adhesive; a data transmission module, which comprises a data acquisition box, the data acquisition box is connected with each sensor in the sensor monitoring module through a twisted shield cable, the twisted shield cable is laid through a fully-enclosed sand-proof and water-proof bridge, and the data acquisition box is also connected with a data processing module to transmit the data acquired by the sensor monitoring module to the data processing module; a data processing module, which is used for analyzing and processing the data acquired by the sensor monitoring module.

2. The miter gate multi-dimension online monitoring system of claim 1, wherein: The sensor group comprises a stress monitoring module, a vibration monitoring module, an operating posture monitoring module and a bottom pivot state monitoring module.

3. The miter gate multi-dimension online monitoring system of claim 2, wherein: The stress monitoring module is used for real-time acquisition of static stress and dynamic stress data of the gate, and comprises: a first stress sensor group, which is arranged at the center line position of the main pre-stress back rod and is arranged along the back rod direction; a second stress sensor group, which is arranged at the center line position of the auxiliary pre-stress back rod and is arranged along the back rod direction; a third stress sensor group, which is arranged at the center line position of the top pivot rod and is arranged along the rod direction; a fourth stress sensor group, which is arranged at the junction of the bottom main beam gate shaft column end plate and the bottom main beam rear flange and is arranged along the water flow direction; a fifth stress sensor group, which is arranged at the center line position of the front flange and the rear flange of the middle main beam and is arranged transversely.

4. The miter gate multi-dimensional online monitoring system of claim 2, wherein: The vibration monitoring module is used for real-time monitoring of three-axis direction vibration acceleration of the gate, and comprises: a first acceleration sensor, which is arranged on the upper part of the web plate at the connection part of the bottom pivot and the bottom main beam and is used for measuring vibration and acceleration in X, Y and Z three-axis directions; a second acceleration sensor, which is arranged at the junction of the rear flange of the bottom main beam and the inclined column and is used for measuring vibration and acceleration in X, Y and Z three-axis directions; a third acceleration sensor, which is arranged at the junction of the rear flange of the top main beam and the inclined column and is used for measuring vibration and acceleration in X, Y and Z three-axis directions.

5. The miter gate multi-dimensional online monitoring system of claim 2, wherein: The operating posture monitoring module is used for real-time monitoring of the inclination angle and operating posture of the gate, and comprises: an inclination sensor, which is arranged at the downstream side of the inclined column at the top of the gate.

6. The miter gate multi-dimensional online monitoring system of claim 2, wherein: The bottom pivot state monitoring module is used for real-time monitoring of the operating state of the bottom pivot bearing, and comprises: an acoustic emission sensor, which is arranged on the upper part of the web plate at the connection part of the bottom pivot and the bottom main beam.

7. The multi-dimensional online monitoring system of the miter gate according to any one of claims 1 to 6, characterized in that: The data acquisition box and the data processing module communicate data through wired transmission or wireless communication transmission.

8. The multi-dimensional online monitoring system of the miter gate according to any one of claims 1 to 6, characterized in that: The data processing module comprises a local control cabinet.

9. The multi-dimensional online monitoring system of the miter gate according to any one of claims 1 to 6, characterized in that: The utility model further comprises an alarm module, which is connected with the data processing module to start or stop according to the analysis and processing results of the data processing module.

10. The miter gate multi-dimension online monitoring system of claim 9, wherein: The alarm module comprises an alarm lamp and / or a buzzer.

Images