High slope intelligent deformation monitor and monitoring method

Abstract

This invention discloses an intelligent deformation monitor and monitoring method for high slopes, belonging to the field of high slope deformation monitoring technology. The monitor includes a configuration box fixed to the top of the high slope; two vertically symmetrical support steel bars fixedly connected to the ground; and an inclined rod fixedly connected to the top of each support steel bar, positioned above and parallel to the slope surface. Multiple spaced rotating rods are rotatably arranged between the two inclined rods along their length, with a long plate fixedly fitted onto each rotating rod. When the slope stability of the high slope becomes unbalanced, a cam located on one side of the rotating rod rotates upwards, causing the cam surface to contact a contact sensor. This triggers an alarm signal from the configuration box to the monitoring center. Upon receiving the alarm signal, the monitoring center staff can immediately notify and arrange for personnel to arrive at the high slope site for surveying and implementing relevant protective measures.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of high slope deformation monitoring, more particularly, to a high slope intelligent deformation monitor and a monitoring method. BACKGROUND

[0002] The high slope refers to the artificial high slope formed by the building and municipal engineering excavation or filling construction on the building site or its periphery and the natural high slope which has influence on the building safety or stability.

[0003] The measures for preventing landslides should be taken for the high slope, and the factors affecting the stability of the high slope mainly exist in two aspects of internal factors and external factors: the internal factors include the constitution of the high slope rock mass, geological structure, rock mass structure and ground stress, and the internal factors often play a major control role; the external factors include the action of surface water and underground water, earthquake, wind and water action, artificial excavation and engineering load, etc., among which the surface water and underground water are the most important and active external factors affecting the stability of the high slope.

[0004] In order to make early warning and monitoring before the high slope appears landslide, the existing technology uses laser ranging monitoring technology to achieve the deformation monitoring of the high slope, but there are often weeds and garbage on the slope surface of the high slope, and the grass grows vigorously, which is easy to block the laser irradiation, thereby causing interference to the measurement of the laser on the surface of the high slope, and if the staff is arranged to clean the garbage on the high slope and cut the grass regularly, the cost of monitoring and maintenance will be increased, and it is also not conducive to the long-term monitoring of the high slope, and at the same time, the purchase and maintenance cost of the core laser device used in this monitoring method is high, which leads to the high cost of the monitoring work of the high slope.

[0005] According to the search, there are relevant disclosures about the slope deformation monitoring device and the monitoring method, such as Chinese patent application No. 201510168823. X, application date is April 10, 2015, and the invention name is: the slope monitoring system capable of acquiring three-dimensional data of slope deformation and the method for acquiring three-dimensional data of slope deformation. The slope monitoring system of the application comprises a monitoring device for collecting data of the convexity or concavity of the slope to be measured; an image acquisition device for collecting planar coordinate data of the slope to be measured; and an information processing device for comprehensively calculating the three-dimensional data of the deformed slope based on the data collected by the monitoring device and the image acquisition device. The monitoring device comprises a laser ranging sensor and a target, the laser ranging sensor is arranged opposite to the slope to be measured, the target is arranged on the slope to be measured, the laser ranging sensor forms an image on the target according to the emitted laser and reflects back, and the laser ranging sensor calculates the distance between the laser emitting point and the reflection point; the image acquisition device is arranged near the target and is used for collecting the planar coordinate data of the laser reflection point on the target; and the information processing device is a background server, which is used for comprehensively calculating the three-dimensional coordinate of the deformed slope based on the distance collected by the laser ranging sensor and the planar coordinate data collected by the image acquisition device.

[0006] In the application, the long-distance high-precision laser ranging technology and image recognition technology are used to acquire more slope deformation monitoring data, and the three-dimensional deformation of the slope is finally obtained by comprehensive calculation. However, when the technical solution of the application is used to collect data, the phenomenon of interference of weeds with laser monitoring precision is inevitable. In order to ensure the monitoring precision, the weeds are treated by organizing personnel, which consumes a lot of manpower and material resources, and the monitoring cost is high.

[0007] Therefore, it is necessary to design a high-slope intelligent deformation monitor to solve this problem. SUMMARY

[0008] 1. Problem to be solved

[0009] The present application provides a high-slope intelligent deformation monitor and a monitoring method to solve the above problems existing in the current high-slope monitoring process. The monitor of the present application has simple structure and ingenious design, and can realize real-time monitoring and early warning of high-slope deformation with low monitoring cost.

[0010] 2. Technical scheme

[0011] In order to solve the above problems, the technical scheme adopted by the present application is as follows:

[0012] The application discloses a high-slope intelligent deformation monitor, which comprises an inclined rod, a rotating rod, a cam, a contact sensor and a PLC controller.

[0013] The inclined rod is arranged above the slope surface of the high slope and parallel to the slope surface, a plurality of rotating rods are arranged between the two inclined rods and are axially arranged and equidistantly distributed along the length direction of the rotating rods, a plurality of inserting rods are arranged on one side of the rotating rod close to the slope surface and are equidistantly distributed along the length direction of the rotating rod.

[0014] A plurality of cams are further arranged, the number of the cams is the same as that of the rotating rods and the contact sensors, one end of each cam is fixedly connected to the corresponding rotating rod, and the outer convex part of the cam extends downwards below the slope bottom, a plurality of contact sensors are arranged on one side of one of the inclined rods, each contact sensor is arranged above the corresponding cam, and each contact sensor is electrically connected to the PLC controller in the configuration box, so that the detected signals can be transmitted to the PLC controller, and the PLC controller sends an alarm signal to the monitoring center.

[0015] As a further preferred embodiment of the application, the bottom of each of the two inclined rods is fixedly connected with a plurality of equidistantly distributed fixing plates along the length direction of the inclined rod, and the left and right sides of each rotating rod are inserted between the corresponding two fixing plates through bearings to form a rotating connection in the vertical direction, so that the rotating rod can drive the cam to rotate correspondingly when the slope surface of the high slope is deformed.

[0016] As a further preferred embodiment of the application, a protective cover is further arranged, the side of each of the plurality of fixing plates arranged on one of the inclined rods is fixedly connected with a protective cover, the plurality of contact sensors are fixedly arranged on the top of the inner wall of the corresponding protective cover, one side of each rotating rod extends into the protective cover, and the cam is arranged in the protective cover, so that the contact sensor and the cam are not directly exposed to the outside and are not covered with dust, collided with objects and the like.

[0017] As a further preferred embodiment of the present application, the configuration box is provided with a wireless signal transceiver, the output ends of the plurality of contact sensors are electrically connected to the input ends of the PLC controller for sending a signal to the PLC controller when the cam contacts the contact sensor, and the output end of the PLC controller is electrically connected to the input end of the wireless signal transceiver, so that the PLC controller can send an alarm signal to the monitoring center through the wireless signal transceiver after receiving the contact sensor signal, so that the staff of the monitoring center can first receive the alarm signal transmitted by the wireless signal transceiver when the high slope surface deforms, and respond in time.

[0018] As a further preferred embodiment of the present application, the length of the inclined rod is half the length of the high slope surface, and monitoring whether the lower half of the high slope surface deforms can achieve the purpose of monitoring stability, which reduces the arrangement of related structures compared to monitoring the entire slope surface and saves costs.

[0019] As a further preferred embodiment of the present application, the distance between every two adjacent long plates is not more than two meters, to ensure the accuracy of monitoring whether the high slope surface deforms.

[0020] As a further preferred embodiment of the present application, the top of each protective cover is fixedly connected with an alarm lamp electrically connected to the PLC controller, which can be turned on when the PLC controller receives the signal transmitted by the contact sensor, and the specific position of the deformation can be determined by observing the lighting of the alarm lamp when the staff arrives on site to investigate and detect the deformed high slope.

[0021] As a further preferred embodiment of the present application, it further comprises an alarm horn, and more preferably, the alarm horn is installed on the surface of the configuration box, and the output end of the PLC controller is electrically connected to the input end of the alarm horn, so that the PLC controller can turn on the alarm horn when it receives the signal of the contact sensor, and the alarm horn can ring and play a warning sound when the slope surface of the high slope deforms, to prompt nearby personnel to stay away from the high slope.

[0022] As a further preferred embodiment of the present application, a battery is arranged in the configuration box, which is used to supply power to the contact sensor, the PLC controller, the wireless signal transceiver, the alarm lamp and the alarm horn, which is more reasonable. More preferably, a row of solar panels is fixedly installed above the surface of the slope surface of the high slope, and the solar panels are electrically connected to the battery, so that the solar panels can generate electric energy and charge the battery when they are irradiated by sunlight.

[0023] The present application also provides a high slope intelligent deformation monitoring method, which uses the monitor of the present application to monitor and prewarn the deformation of the high slope surface in real time, and specifically includes the following steps:

[0024] Step one, survey the slope terrain, determine the monitor components;

[0025] According to the slope area to be measured, the size of the tilt rod and the rotating rod is determined, and the number of the rotating rod, the cam, the insertion rod and the contact sensor is determined;

[0026] Step two, install the monitor;

[0027] When installing, the tilt rod and the rotating rod of the monitor are installed at the lower half of the high slope, and other components are installed in sequence.

[0028] Compared with the prior art, the monitor has the following beneficial effects:

[0029] In the use process of the monitor, when the slope stability of the high slope is unbalanced, and the slope starts to deform slightly downward, the insertion rod inserted into the slope will move downward following the deformation, so as to drive the rotating rod to rotate. The rotating direction of the rotating rod is that the top of the rotating rod rotates downward, and the bottom of the rotating rod rotates upward in the initial fixed state. At this time, the outer convex part of the cam fixed at one end of the rotating rod also rotates upward, so that the surface of the cam is in contact with the contact sensor. The contact sensor transmits a trigger signal to the PLC controller. The PLC controller thus configured cabinet will send an alarm signal to the monitoring center. The staff of the monitoring center can immediately notify and arrange personnel to reach the high slope site for surveying and taking relevant protective measures after receiving the alarm signal, so as to achieve the effect of real-time monitoring of the stability of the high slope. Compared with the traditional laser monitoring technology, the applicability is better, and the use cost is lower. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 The three-dimensional structure schematic diagram of the monitor installed on the slope;

[0031] Figure 2 The structure side view schematic diagram of Figure 1 ;

[0032] Figure 3 The structure along the A-A line in Figure 2 ;

[0033] Figure 4 The plane structure schematic diagram of the monitor;

[0034] Figure 5 The structure along the B-B line in Figure 4 ;

[0035] Figure 6 The electrical connection principle schematic diagram of the monitor;

[0036] In the drawings:

[0037] 1, high slope; 2, support steel bar; 3, inclined rod; 4, rotating rod; 5, long plate; 6, inserted rod; 7, cam; 8, contact sensor; 9, configuration box; 10, fixed plate; 11, protective cover; 12, solar panel; 13, alarm light; 14, alarm horn; 15, battery. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

[0039] Obviously, a lot of specific details are set forth in the following description in order to provide a thorough understanding of the present application. However, the present application can be practiced according to other embodiments that are not explicitly described or illustrated herein. In other instances, well-known methods, procedures, components and networks have not been described in detail so as not to unnecessarily obscure aspects of the present application.

[0040] Embodiment 1

[0041] The high slope intelligent deformation monitor of the embodiment comprises inclined rods 3, rotating rods 4, cams 7, contact sensors 8 and PLC controllers, wherein the inclined rods 3 are symmetrically installed on both sides of the slope surface to be measured, the rotating rods 4 are rotatably installed between the two inclined rods 3, and a plurality of inserted rods 6 are arranged on the side of the rotating rod 4 close to the slope surface and spaced along the length direction of the rotating rod 4; the cam 7 is installed at the end of the rotating rod 4, and the outer convex part of the cam 7 is arranged towards the slope bottom; the contact sensor 8 is installed on the inclined rod 3 and located above the outer convex part of the cam 7, and the contact sensor 8 is electrically connected with the PLC controller. The present application optimizes the structure of the monitor, and utilizes the tiny stress generated when the slope surface deforms to conduct to the rotating rod 4 through the inserted rods 6, so as to drive the rotating rod 4 to rotate, thereby making the cam 7 installed at the end of the rotating rod 4 touch the contact sensor 8 to generate an electric signal, which is transmitted to the PLC controller. The PLC controller sends the deformation signal to the monitoring center to prompt the staff to arrange relevant personnel to go to the specific location of the high slope 1 to conduct survey and take relevant protective measures.

[0042] Specifically, please refer to Figures 1-3 and Figure 6 The top of the high slope 1 is fixedly connected with the configuration box 9, and the present application further comprises two support steel bars 2 which are fixedly connected to the ground in vertical direction and left-right symmetrical, and the top of the two support steel bars 2 is fixedly connected with the inclined rods 3 which are located above the slope surface of the high slope 1 and parallel to the slope surface. The rotating rod 4 is rotatably arranged between the two inclined rods 3 along the length direction thereof, the long plates 5 are fixedly sleeved on the rotating rod 4, and the bottom of the long plate 5 is fixedly connected with the inserted rods 6 which are inserted into the slope surface of the high slope 1.

[0043] Further, as Figures 3-5As shown, the rotating rod 4 comprises a plurality of rotating rods 4 which are distributed in the left and right axial directions and at equal intervals. Meanwhile, the monitor of the present application further comprises a plurality of cams 7, each of which is fixedly connected to one side of the corresponding rotating rod 4, and the outer convex part of the cam 7 extends towards the slope bottom. One side of one of the inclined rods 3 corresponds to the cam 7 and is provided with a contact sensor 8, and each contact sensor 8 is located directly above the corresponding cam 7, and the contact sensor 8 is electrically connected with the PLC controller in the configuration box 9.

[0044] More preferably, the distance between every two adjacent long plates 5 is not more than two meters, which can further improve the accuracy of monitoring whether the slope surface of the high slope 1 is deformed.

[0045] When the slope surface of the high slope 1 is out of balance, the slope surface starts to deform slightly downward, the inserted rod 6 inserted into the slope surface will rotate downward following the deformation, and the long plate 5 and the rotating rod 4 will rotate synchronously, at this time, the cam 7 located on one side of the rotating rod 4 will also rotate upward following the rotation of the rotating rod 4, so that the surface of the cam 7 will contact with the contact sensor 8 to generate an electrical signal, which is transmitted to the PLC controller, and then the PLC controller sends an alarm signal to the monitoring center, the staff of the monitoring center can immediately notify and arrange personnel to reach the high slope 1 site for surveying and taking relevant protective measures after receiving the alarm signal, so as to achieve the effect of real-time monitoring of the stability of the high slope 1, and the applicability is better than that of the traditional laser monitoring technology, and the use cost is lower.

[0046] As another embodiment of the present embodiment, the two ends of the rotating rod 4 are rotatably installed between the two inclined rods 3 through bearing members. Further, a plurality of fixed plates 10 are fixedly connected to the bottom of the two inclined rods 3 and located at the installation position of the rotating rod 4. The left and right sides of each rotating rod 4 are inserted between the corresponding two fixed plates 10 through bearings to form a rotating connection in the vertical direction, so that the rotating rod 4 can drive the cam 7 to rotate correspondingly when the slope surface of the high slope 1 deforms.

[0047] As another embodiment of the present embodiment, please refer to Figure 4 and Figure 5 , one side of the plurality of fixed plates 10 located on one of the inclined rods 3 is fixedly connected with a protective cover 11, and a plurality of contact sensors 8 are fixedly arranged on the inner wall top of the corresponding protective cover 11, one side of each rotating rod 4 extends into the protective cover 11 and the cam 7 is located in the interior of the protective cover 11, so that the contact sensor 8 and the cam 7 can be located in the interior of the protective cover 11 to achieve the purpose of protection, avoiding the contact sensor 8 and the cam 7 being directly exposed to the outside and being covered with dust, object collision, etc., further improving the monitoring accuracy.

[0048] In order to enable the configuration box 9 to send an alarm signal to the monitoring center when the cam 7 is in contact with the contact sensor 8, in some embodiments, it is proposed that a wireless signal transceiver is also arranged in the configuration box 9, and the input end of the wireless signal transceiver is connected with the output end of the PLC controller. The output end of each contact sensor 8 is electrically connected with the input end of the PLC controller, so as to send a signal to the PLC controller when the cam 7 is in contact with the contact sensor 8. In use, the PLC controller can send an alarm signal to the monitoring center through the wireless signal transceiver after receiving the signal of the contact sensor 8, so that the staff of the monitoring center can first receive the alarm signal transmitted by the wireless signal transceiver when the slope surface of the high slope 1 is deformed, and timely respond to avoid losses caused by landslides of the high slope 1.

[0049] Please refer to Figure 1 , as another embodiment of the present embodiment, the length of the inclined rod 3 is half of the length of the slope surface of the high slope 1, so that the long plate 5 is arranged on the lower half of the slope surface of the high slope 1. Because the bottom of the slope surface of the high slope 1 will deform first when the instability and landslide phenomenon occurs, monitoring whether the lower half of the slope surface of the high slope 1 is deformed can achieve the purpose of monitoring stability, and compared with monitoring the entire slope surface, the arrangement of related components is reduced, which achieves the effect of saving cost.

[0050] Please refer to Figure 5 , as another embodiment of the present embodiment, the top of each protective cover 11 is fixedly connected with an alarm lamp 13 electrically connected with the PLC controller. When the PLC controller receives the signal transmitted by the contact sensor 8, the corresponding alarm lamp 13 can be turned on. When the staff arrives at the scene to investigate and detect the deformed high slope 1, the specific position of the deformation can be determined by observing the lighting of the alarm lamp 13, so as to improve the efficiency and accuracy of the investigation operation.

[0051] Meanwhile, as shown in Figure 1 , the surface of the configuration box 9 is fixedly connected with an alarm horn 14, and the output end of the PLC controller is electrically connected with the input end of the alarm horn 14, so that the PLC controller can turn on the alarm horn 14 when receiving the signal of the contact sensor 8. When the slope surface of the high slope 1 is deformed, the alarm horn 14 can ring and play a warning sound, so as to prompt nearby personnel to stay away from the high slope 1, and reduce the possibility of injuries caused by landslides of the high slope 1.

[0052] As another embodiment of the present embodiment, the configuration box 9 is also provided with a battery 15, which is used to supply power to the contact sensor 8, the PLC controller, the wireless signal transceiver, the alarm lamp 13 and the alarm horn 14. Such design is more reasonable.

[0053] Further, the high slope 1 is fixedly installed with a row of solar panels 12 above the slope surface, and the solar panels 12 are electrically connected with the battery 15, the solar panels 12 can generate electric energy when being irradiated by sunlight and charge the battery 15, so as to achieve the purpose of energy saving and environmental protection.

[0054] The high slope intelligent deformation monitoring method of the present application adopts the above-mentioned monitor to monitor, comprising the following steps:

[0055] Step one, survey the slope surface terrain of the high slope 1, and determine the monitor component;

[0056] According to the slope surface area to be measured, the size of the inclined rod 3 and the rotating rod 4 is determined, and the number of the rotating rod 4, the cam 7, the plug rod 6 and the contact sensor 8 is determined; when determining, the length of the inclined rod 3 is designed as half of the length of the slope surface, and here the length of the slope surface refers to the length from the top of the slope to the bottom of the slope. The rotating rod 4 is arranged perpendicular to the inclined rod 3, the length of the rotating rod 4 is consistent with the spacing of the two inclined rods 3, and the spacing between the adjacent two long plates 5 on the rotating rod 4 is controlled within two meters, so as to improve the monitoring accuracy.

[0057] Step two, install the monitor;

[0058] When installing, the inclined rod 3 and the rotating rod 4 of the monitor are installed at the lower half of the high slope, and other components are installed in sequence, so that the monitor can be put into use. The monitor of the present application can realize real-time monitoring of the deformation of the slope, and is convenient and low in cost.

[0059] In the idle place of the device, all electrical devices and their matching drivers are arranged, and all the driving components, i.e. power elements, electrical devices and matched power sources, are connected by wires by the personnel in the field. The specific connection means should be referred to the above description, and the electrical devices are connected in sequence to complete the electrical connection. The detailed connection means is a common technology in the field.

[0060] It should be noted that in the description of the present application, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the present application.

[0061] Meanwhile, in the description of the present application, unless specifically defined and limited otherwise, the terms "mounting", "setting", "connecting", "fixing", "screwing" and the like should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise specifically limited, the above-mentioned terms in the present application can be understood according to the specific meaning in the present application by the person skilled in the art.

[0062] In addition, it should be understood that, in order to facilitate the description, the size of each component shown in the drawings is not drawn according to the actual proportional relationship, for example, the thickness or width of certain layers can be exaggerated relative to other layers.

[0063] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A high slope intelligent deformation monitor, characterized in that: The device comprises an inclined rod (3), a rotating rod (4), a cam (7), a contact sensor (8) and a PLC controller, wherein the inclined rod (3) is symmetrically installed on both sides of the slope to be measured, the rotating rod (4) is rotatably installed between the two inclined rods (3), and a plurality of insertion rods (6) are arranged on the side of the rotating rod (4) close to the slope along the length direction of the rotating rod (4); the cam (7) is installed at the end of the rotating rod (4), the outer convex part of the cam (7) extends towards the slope bottom, the contact sensor (8) is installed on the inclined rod (3) above the outer convex part of the cam (7), and the contact sensor (8) is electrically connected with the PLC controller. The device further comprises a support steel bar (2) and a long plate (5), the inclined rod (3) is connected with the ground through the support steel bar (2), and the long plate (5) is fixedly installed on the rotating rod (4) and provided with a plurality of insertion rods (6) which are equally spaced on the side close to the slope. The length of the inclined rod (3) is half of the length of the slope (1), and the distance between every two adjacent long plates (5) is not more than two meters.

2. The intelligent deformation monitor for high slope according to claim 1, characterized in that: The rotating rod (4) comprises a plurality of rotating rods (4), the rotating rods (4) are equally spaced, both ends of each rotating rod (4) are rotatably connected with the inclined rod (3) through a bearing, and one end of each rotating rod (4) is fixedly installed with a cam (7); one contact sensor (8) is installed above the cam (7) on the inclined rod (3), and each contact sensor (8) is electrically connected with the PLC controller. 3.The high slope intelligent deformation monitor according to any one of claims 1-2, characterized in that: Both sides of the inclined rod (3) are provided with a fixed plate (10) at the installation position of the rotating rod (4), and both ends of the rotating rod (4) are installed on the fixed plate (10) through a bearing.

4. The intelligent deformation monitor for high slope according to claim 3, characterized in that: The device further comprises a protective cover (11), the protective cover (11) is installed on the fixed plate (10), and the cam (7) and the contact sensor (8) are located in the protective cover (11).

5. The intelligent high-slope deformation monitor according to any one of claims 1-2, characterized in that: The device further comprises a configuration box (9), the configuration box (9) is provided with a PLC controller and a wireless signal transceiver, and the output end of the PLC controller is connected with a monitoring center through the wireless signal transceiver.

6. The intelligent high-slope deformation monitor according to claim 5, characterized in that: The device further comprises an alarm horn (14) and a plurality of warning lights (13), one warning light (13) is installed at each rotating rod (4), and the alarm horn (14) and the warning lights (13) are connected with the PLC controller; the configuration box (9) is provided with a battery (15) for supplying power to the electrical equipment.

7. The intelligent high-slope deformation monitor according to claim 6, characterized in that: The device further comprises a solar panel (12), and the solar panel (12) is connected with the battery (15).

8. A high slope intelligent deformation monitoring method, which is monitored by the monitor according to any one of claims 1-7, comprising the following steps: Step one, surveying the slope terrain to determine the components of the monitor; The size of the inclined rod (3) and the rotating rod (4) is determined according to the area of the slope to be measured, and the number of the rotating rod (4), the cam (7), the insertion rod (6) and the contact sensor (8) is determined; Step two, installing the monitor; When installing, the inclined rod (3) and the rotating rod (4) of the monitor are installed on the lower half of the high slope, and other components are installed in sequence.

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