CN107289903B - Linear continuous measurement monitoring system and monitoring method for construction of linear bridge cantilever method - Google Patents
Linear continuous measurement monitoring system and monitoring method for construction of linear bridge cantilever method Download PDFInfo
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- CN107289903B CN107289903B CN201710459650.6A CN201710459650A CN107289903B CN 107289903 B CN107289903 B CN 107289903B CN 201710459650 A CN201710459650 A CN 201710459650A CN 107289903 B CN107289903 B CN 107289903B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C3/00—Measuring distances in line of sight; Optical rangefinders
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/002—Measuring arrangements characterised by the use of optical techniques for measuring two or more coordinates
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C3/00—Measuring distances in line of sight; Optical rangefinders
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Abstract
The invention discloses a linear continuous measurement monitoring system for construction of a linear bridge cantilever method, which comprises a reflecting target, an installation upright post and a laser ranging device; the invention also discloses a continuous monitoring method using the monitoring system, wherein the first step is that a worker adjusts the positions of the first reflecting target and the third reflecting target; the second step is to measure the actual offset of the second reflecting target by using the first laser ranging device, and the third step is to check the levelness and the rotation angle of the first laser ranging device by taking the actual position of the second reflecting target as a reference; then measuring the actual offset of the first and third reflective targets using a second laser ranging device; and continuously monitoring the deviation of the hanging basket through the steps in the running process of the hanging basket and when the hanging basket stops running in place. The invention has simple structure, is convenient to measure, can realize continuous monitoring in the travelling process of the hanging basket, and is suitable for the hanging casting construction of most of linear bridges.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to a monitoring system and a monitoring method in the construction of a straight line bridge cantilever method.
Background
The main working contents of the construction with the hanging basket cantilever comprise: pouring a starting beam section (0 # block) on the pier top, assembling a suspension pouring hanging basket on the starting beam section, and sequentially and sectionally suspending the beam section; side and middle spans are closed. The 0# block is supported below by the pier column, which is the 0# block pier column.
When the cantilever pouring method is adopted for construction, the pier top No. 0 block beam section is cast in situ by adopting a vertical mould on the bracket. The construction bracket can respectively utilize pier body, bearing platform or ground to support according to pier body height, bearing platform form and topography condition, and establishes the support bracket. Pier top beam sections (so-called zero blocks) or beam sections near the pier top are poured on brackets. And the construction hanging basket is assembled on the poured beam section.
The hanging basket is a bearing frame capable of sliding or rolling along the roof of the beam, is anchored and hung on the constructed beam section, and can be used for installing templates, reinforcing steel bars and prestressed pipelines of the next beam section, and performing concrete pouring, prestressed tensioning, grouting and other operations.
After the circulation of one stage is completed, the hanging basket can move forward and be fixed, and cantilever perfusion of the next stage is carried out, so that the circulation is carried out until the cantilever perfusion is completed.
The cradle comprises a plurality of upright posts, pull rods, a bottom longitudinal beam, guide rails and a cross beam connected between the upright posts along the transverse bridge direction (perpendicular to the center line of the bridge). When the concrete beam section is poured, the hanging basket must be anchored with the beam at the tail of the hanging basket. When the hanging basket walks, the hanging basket can generate tiny position offset in the up-down direction and the left-right direction due to the factors of dead weight, tiny deformation, anchoring and the like.
The linear monitoring of the hanging basket construction comprises the steps of positioning and dismantling the hanging basket, concreting a cantilever section, stretching the prestressed tendons, measuring the heights and coordinates, and the like, and has high measuring frequency, large data volume and multiple measuring points; the existing measurement needs professional staff and professional equipment, and is performed at a certain time under the condition of good construction environment, and due to the measurement specificity, the labor intensity is high, the task is heavy, and all-weather and full-time monitoring cannot be achieved. Construction experience shows that the higher the measurement frequency is, the more the time period is tight, and the engineering quality and safety of the cantilever segment are ensured. The invention meets the requirements of all-weather and full-time measurement of the three-dimensional coordinates of the hanging basket and the cantilever construction section, and does not need professional measurement, the equipment can automatically measure the three-dimensional coordinates of the reference control point, constructors can move the first movable reflection target and the third movable reflection target at any time, the three-dimensional coordinates of the point to be measured are measured, and the construction is facilitated.
Disclosure of Invention
The invention aims to provide a linear continuous measurement monitoring system for construction of a straight line bridge cantilever method, which has a simple structure, is convenient to measure and can realize continuous monitoring in the travelling process of a hanging basket.
In order to achieve the purpose, the linear continuous measurement monitoring system for the construction of the linear bridge cantilever method comprises a reflection target and an installation upright post fixedly connected to a 0# block, wherein the installation upright post is positioned above the 0# block pier in the forward direction of a bridge; the two mounting upright posts are arranged at intervals along the transverse bridge direction and are respectively a first mounting upright post and a second mounting upright post, and the distance between the first mounting upright post and the central line of the bridge is smaller than that between the first mounting upright post and the second mounting upright post;
a first laser ranging device is arranged on the first mounting upright post, and a second laser ranging device is arranged on the second mounting upright post; the first laser ranging device and the second laser ranging device are positioned on the same horizontal plane, and the second laser ranging device is provided with a rotating chassis;
the reflection targets are provided with at least one set, wherein one set of the reflection targets comprises 3 reflection targets, namely a first reflection target, a second reflection target and a third reflection target; the first reflection target is hung on a stand column at one side of a hanging basket of a block section to be constructed; the second reflecting target is fixedly connected to the hanging basket cross beam of the section to be constructed, and the center of the second reflecting target is positioned on the vertical surface where the center line of the bridge is positioned; the third reflecting target is hung on the upright post at the other side of the hanging basket of the block section to be constructed;
the first reflecting target, the second reflecting target and the third reflecting target are arranged in a delta shape, take the direction along the forward bridge direction deviating from the 0# block as the forward direction, the second reflecting target is positioned at the front end 1/3 position of the construction section, and the first reflecting target and the third reflecting target are respectively positioned at the forward bridge center line of the bridge side web plate by +/-0.5 meter;
the first laser ranging device and the second laser ranging device are connected with an electric control device, and the electric control device is connected with an audible and visual alarm and a power supply.
And the first mounting upright post and the second mounting upright post are both connected with a protective cover.
The electric control device is a PLC or a singlechip.
And a set of reflecting targets are respectively arranged on the side span hanging basket and the middle span hanging basket at the two sides of the 0# block.
The invention also discloses a continuous monitoring method of the linear continuous measurement monitoring system constructed by the linear bridge cantilever method, which comprises the following steps of:
the first reflecting target, the second reflecting target and the third reflecting target are as high as the first laser ranging device and the second laser ranging device in the initial state; calculating theoretical offset of the first reflecting target, the second reflecting target and the third reflecting target in the transverse bridge direction and the vertical direction according to the walking distance of the hanging basket and the gradient of the bridge deck;
the first step is that a worker adjusts the positions of the first reflecting target and the third reflecting target, so that the positions of the first reflecting target and the third reflecting target after adjustment just reach the elevation and the axis position required by construction design;
the second step is that a worker opens the first laser ranging device to enable the first laser ranging device to emit laser to the second reflecting target, the distance between the second reflecting target and the first laser ranging device is measured, the actual offset of the three-dimensional coordinate position of the second reflecting target is measured, and when the actual offset of the three-dimensional coordinate position of the second reflecting target deviating from the position required by construction design is greater than 0.05 meter, the electronic control device controls the audible and visual alarm to send out an audible and visual alarm to remind the worker to correct the offset of the hanging basket; in the process, the electric control device records the actual position of the second reflecting target;
the third step is that a worker rotates the second laser ranging device to a position opposite to the second reflecting target, operates the second laser ranging device to emit laser to the second reflecting target, measures the distance and horizontal elevation between the second reflecting target and the second laser ranging device, and checks the levelness and the rotation angle of the first laser ranging device by taking the actual position of the second reflecting target as a reference;
then, the worker rotates the second laser ranging device to a position opposite to the first reflecting target, operates the second laser ranging device to emit laser to the first reflecting target, measures the distance between the first reflecting target and the second laser ranging device, and measures the actual offset of the first reflecting target; when the first reflection target is placed near the point to be detected and the three-dimensional coordinate deviation value is measured to be more than 5 cm, the electric control device controls the audible and visual alarm to send out an audible and visual alarm to remind a worker to correct the deviation of the hanging basket;
finally, the second laser ranging device of the worker rotates to a position opposite to the third reflecting target, the third laser ranging device is operated to emit laser to the third reflecting target, the distance between the third reflecting target and the second laser ranging device is measured, and the actual offset of the third reflecting target is measured; when the third reflective target is placed near the point to be measured and the three-dimensional coordinate deviation value is measured to be more than 5 cm, the electronic control device controls the audible and visual alarm to send out an audible and visual alarm to remind a worker to correct the deviation of the hanging basket;
and continuously monitoring the deviation of the hanging basket through the steps in the running process of the hanging basket and when the hanging basket stops running in place.
The invention also aims to provide a continuous monitoring method using the monitoring system.
The invention has the following advantages:
the invention has simple structure and convenient use, solves the problems that the prior art needs professional personnel to coordinate professional equipment to perform fixed point measurement and can not perform measurement at any time, and can set the first reflecting target or the third reflecting target where the offset of which position needs to be measured, the laser emission device can automatically convert the construction requirement three-dimensional coordinates of the reflecting target position according to the measuring distance without manual measurement, and the measurement result is more accurate. In the past, the offset of the hanging basket can be detected only when the hanging basket stops, and the hanging basket cannot be detected in the running process. By using the monitoring system and the monitoring method, continuous detection can be performed in the basket hanging walking process, and the electric control device can control the audible and visual alarm to give an alarm so as to remind a worker to timely rectify the deviation of the basket hanging as long as the deviation of one of the three reflection targets exceeds the design allowable range.
The invention can continuously measure the three-dimensional coordinates of any point location of the construction position in all weather and all time periods, and common technicians can operate the invention after being slightly trained; and the method can be used for comparing the measurement data stored in the built-in data storage system with simulation analysis, design data and construction data to provide experience for later construction.
The linear continuous measurement monitoring system and the monitoring method for the construction of the linear bridge cantilever method can be used for controlling the height of the concrete bridge deck constructed by the cantilever pouring method at the corresponding reflection targets after comparing the actual offset of the first reflection targets, the second reflection targets and the third reflection targets with the theoretical offset. The main function of the actual offset of the second reflecting target is to control the elevation of the center point of the hanging basket and the offset of the hanging basket from the center line, and the actual offset is used as a reference for the first laser ranging device to adjust the state of the first laser ranging device.
The invention uses the first laser ranging device which is always kept fixed to determine the actual position of the second reflecting target fixed on the hanging basket beam, thereby correcting the levelness and the rotation angle of the second laser ranging device by taking the second reflecting target as a reference and preventing the inaccurate measurement result caused by small deviation caused by multiple rotation actions in the use process.
By using the invention, the offset of the front hanging basket and the rear hanging basket can be monitored by emitting laser in the front side hanging basket direction and the middle hanging basket direction. The effective measurement distance of the laser distance measuring device is 150 meters, so the laser distance measuring device can be used for measuring in the range of 300 meters in total in the front and back directions, and the maximum application range of the laser distance measuring device is a straight line bridge with a single span of 300 meters or less. Of course, in order to ensure the measurement accuracy of the present invention, the single span length (the distance between two adjacent piers in the forward direction) is preferably 200 meters or less when the present invention is practically applied. Because the single span length of 80% of the straight bridges is not more than 200 m, the invention is suitable for the suspension casting construction of most straight bridges, and the deviation of the positions of the hanging basket and the cast-in-situ bridge from the preset position in the construction process is prevented from exceeding the design requirement.
The invention meets the requirements of all-weather and full-time measurement of the three-dimensional coordinates of the hanging basket and the cantilever construction section, and does not need professional measurement, the equipment can automatically measure the three-dimensional coordinates of the reference control point, constructors can move the first movable reflection target and the third movable reflection target at any time, the three-dimensional coordinates of the point to be measured are measured, and the construction is facilitated.
Drawings
FIG. 1 is a schematic circuit diagram of the present invention;
FIG. 2 is a schematic view of the structure in which the mounting posts are provided on the 0# block;
FIG. 3 is a schematic illustration of the position of a bridge section at first through third reflective targets relative to the reflective targets;
fig. 4 is a schematic view of a laser ranging device lasing to its front and rear baskets.
Detailed Description
The direction indicated by the arrow in fig. 4 is the laser emission direction.
As shown in fig. 1 to 4, the linear continuous measurement monitoring system for the construction of the linear bridge cantilever method comprises a reflection target and an installation upright post fixedly connected to a 0# block, wherein the installation upright post is positioned above an pier column of a 0# block 3 in the forward direction of a bridge; the two mounting upright posts are arranged at intervals along the transverse bridge direction and are respectively a first mounting upright post 1 and a second mounting upright post 2, and the distance between the first mounting upright post 1 and the central line of the bridge is smaller than that between the second mounting upright post 2 and not larger than 1.0m;
a first laser ranging device 4 is arranged on the first mounting upright post 1, and a second laser ranging device 5 is arranged on the second mounting upright post 2; the first laser ranging device 4 and the second laser ranging device 5 are positioned on the same horizontal plane, and the second laser ranging device 5 is provided with a rotary chassis 6; the rotating chassis 6 is of conventional construction, and the specific construction will not be described in detail.
The reflection targets are provided with at least one set, one set of the reflection targets comprises 3 reflection targets, namely a first reflection target 7, a second reflection target 8 and a third reflection target 9; the first reflection target 7 is hung on a stand column at one side of a hanging basket 14 of the block section to be constructed; the second reflection target 8 is fixedly connected to the cross beam of the hanging basket of the section to be constructed, and the center of the second reflection target 8 is positioned on the vertical surface where the center line of the bridge is positioned; the third reflecting target 9 is hung on the other side upright post of the hanging basket 14 of the block section to be constructed;
the first reflecting target, the second reflecting target and the third reflecting target are arranged in a delta shape, take the direction along the forward bridge direction deviating from the 0# block as the forward direction, the second reflecting target is positioned at the front end 1/3 position of the construction section, and the first reflecting target and the third reflecting target are respectively positioned at the forward bridge center line of the bridge side web plate by +/-0.5 meter;
the first laser ranging device 4 and the second laser ranging device 5 are connected with an electric control device 10, and the electric control device 10 is connected with an audible and visual alarm 11, a memory 16 and a power supply 12. The memory 16 is used for storing the input parameters and the data output by the electric control device, and the electric control device calculates the three-dimensional coordinates of each reflecting target according to the parameters input by the operator and the measured data of the laser ranging device.
The first mounting upright 1 and the second mounting upright 2 are both connected with a protective cover 13.
The electric control device 10 is a PLC or a singlechip.
The installation upright post is a cast-in-place concrete upright post, and the specification of the installation upright post is 0.5-1.0 (meter).
And a set of reflecting targets are respectively arranged on the side span hanging basket and the middle span hanging basket at the two sides of the 0# block. The reflective targets of the side span hanging baskets and the reflective targets of the middle span hanging basket are arranged at the same positions on the hanging baskets where the side span hanging baskets and the middle span hanging basket are respectively arranged. The first laser ranging device and the second laser ranging device monitor offset of the side span hanging basket and the middle span hanging basket by emitting laser along the bridge direction in the direction deviating from the 0# block. The lasers emitted by the first laser ranging device and the second laser ranging device towards the side span hanging basket are used for monitoring the offset of the side span hanging basket, and the lasers emitted towards the middle span hanging basket are used for monitoring the offset of the middle span hanging basket.
And the linear continuous measurement and monitoring system for the whole set of linear bridge cantilever method construction is respectively installed at the top positions of two main pier box girders corresponding to the bridge No. 0 block.
The invention also discloses a continuous monitoring method of the linear continuous measurement monitoring system constructed by the linear bridge cantilever method, which comprises the following steps of:
the first reflecting target 7, the second reflecting target 8 and the third reflecting target 9 are at the same height as the first laser ranging device 4 and the second laser ranging device 5 in the initial state; calculating theoretical offset of the first reflecting target 7, the second reflecting target 8 and the third reflecting target 9 in the transverse bridge direction and the vertical direction according to the walking distance of the hanging basket 14 and the gradient of the bridge floor;
the first step is that a worker adjusts the positions of the first reflecting target 7 and the third reflecting target 9 up and down or left and right according to the measured elevation data posted on the hanging basket upright post, so that the positions of the first reflecting target 7 and the third reflecting target 9 just reach the elevation and the axis position required by construction design, and the construction worker is helped to conveniently determine the installation of the hanging basket and the elevation axis of the structural concrete surface;
the second step is that a worker opens the first laser ranging device 4 to enable the first laser ranging device to emit laser 15 to the second reflecting target 8, measures the distance between the second reflecting target 8 and the first laser ranging device 4, measures the actual offset of the three-dimensional coordinate position (three-dimensional coordinate refers to forward, transverse and vertical) of the second reflecting target 8, and when the actual offset of the three-dimensional coordinate position of the second reflecting target 8 deviating from the position required by construction design is greater than 0.05 meter (namely when the center of the second reflecting target 8 deviates to the left or the right from the center line of a bridge by more than 0.05 meter), the electric control device 10 controls the acousto-optic alarm 11 to emit an acousto-optic alarm to remind the worker to correct the offset of the hanging basket 14; in the above process, the electronic control device 10 records the actual position of the second reflection target 8;
the third step is that the worker rotates the second laser ranging device 5 to a position opposite to the second reflecting target 8, operates the second laser ranging device 5 to emit laser 15 to the second reflecting target 8, measures the distance and horizontal elevation between the second reflecting target 8 and the second laser ranging device 5, and checks the levelness and rotation angle of the first laser ranging device 4 by taking the actual position of the second reflecting target 8 as a reference;
since the first laser distance measuring device 4 remains stationary during operation, its position does not need to be checked; the second laser distance measuring device 5 needs to be rotated during operation to aim at different reflection targets, and the levelness and the rotation angle of the second laser distance measuring device may deviate slightly, so that the measurement result is inaccurate, and therefore, checking is needed.
Then, the worker rotates the second laser ranging device 5 to a position opposite to the first reflecting target 7 by rotating the chassis 6, operates the second laser ranging device 5 to emit laser 15 to the first reflecting target 7, measures the distance between the first reflecting target 7 and the second laser ranging device 5, and measures the actual offset of the first reflecting target 7; when the actual offset of the first reflecting target 7 in the transverse bridge direction or the vertical direction (the direction of the plumb line) is more than 10 cm, the electronic control device 10 controls the audible and visual alarm 11 to emit an audible and visual alarm, so as to remind a worker of correcting the offset of the hanging basket 14;
finally, the second laser ranging device 5 of the worker rotates to a position opposite to the third reflecting target 9, the third laser ranging device is operated to emit laser 15 to the third reflecting target 9, the distance between the third reflecting target 9 and the second laser ranging device 5 is measured, and the actual offset of the third reflecting target 9 is measured; when the actual offset of the third reflecting target 9 in the transverse bridge direction or the vertical direction is larger than 10 cm, the electric control device 10 controls the audible and visual alarm 11 to emit an audible and visual alarm, so as to remind a worker of correcting the offset of the hanging basket 14;
the offset of the basket 14 is continuously monitored by the above steps during and when the basket 14 is stopped in position.
This patent not only is applied to daily construction measurement in the work progress, can also be used for construction monitoring.
The above embodiments are only for illustrating the technical solution of the present invention, and it should be understood by those skilled in the art that although the present invention has been described in detail with reference to the above embodiments: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention, which is intended to be encompassed by the claims.
Claims (4)
1. The continuous monitoring method of the linear continuous measurement monitoring system for construction by using the linear bridge cantilever method comprises a reflection target and an installation upright post fixedly connected to a 0# block, wherein the installation upright post is positioned above the 0# block pier in the forward direction of the bridge; the two mounting upright posts are arranged at intervals along the transverse bridge direction and are respectively a first mounting upright post and a second mounting upright post, and the distance between the first mounting upright post and the central line of the bridge is smaller than that between the first mounting upright post and the second mounting upright post; the method is characterized in that:
a first laser ranging device is arranged on the first mounting upright post, and a second laser ranging device is arranged on the second mounting upright post; the first laser ranging device and the second laser ranging device are positioned on the same horizontal plane, and the second laser ranging device is provided with a rotating chassis;
the reflection targets are provided with at least one set, wherein one set of the reflection targets comprises 3 reflection targets, namely a first reflection target, a second reflection target and a third reflection target; the first reflection target is hung on a stand column at one side of a hanging basket of a block section to be constructed; the second reflecting target is fixedly connected to the hanging basket cross beam of the section to be constructed, and the center of the second reflecting target is positioned on the vertical surface where the center line of the bridge is positioned; the third reflecting target is hung on the upright post at the other side of the hanging basket of the block section to be constructed;
the first reflecting target, the second reflecting target and the third reflecting target are arranged in a delta shape, take the direction along the forward bridge direction deviating from the 0# block as the forward direction, the second reflecting target is positioned at the front end 1/3 position of the construction section, and the first reflecting target and the third reflecting target are respectively positioned at the forward bridge center line of the bridge side web plate by +/-0.5 meter;
the first laser ranging device and the second laser ranging device are connected with an electric control device, and the electric control device is connected with an audible and visual alarm and a power supply;
the continuous monitoring method sequentially comprises the following steps:
the first reflecting target, the second reflecting target and the third reflecting target are as high as the first laser ranging device and the second laser ranging device in the initial state; calculating theoretical offset of the first reflecting target, the second reflecting target and the third reflecting target in the transverse bridge direction and the vertical direction according to the walking distance of the hanging basket and the gradient of the bridge deck;
the first step is that a worker adjusts the positions of the first reflecting target and the third reflecting target, so that the positions of the first reflecting target and the third reflecting target after adjustment just reach the elevation and the axis position required by construction design;
the second step is that a worker opens the first laser ranging device to enable the first laser ranging device to emit laser to the second reflecting target, the distance between the second reflecting target and the first laser ranging device is measured, the actual offset of the three-dimensional coordinate position of the second reflecting target is measured, and when the actual offset of the three-dimensional coordinate position of the second reflecting target deviating from the position required by construction design is greater than 0.05 meter, the electronic control device controls the audible and visual alarm to send out an audible and visual alarm to remind the worker to correct the offset of the hanging basket; in the process, the electric control device records the actual position of the second reflecting target;
the third step is that a worker rotates the second laser ranging device to a position opposite to the second reflecting target, operates the second laser ranging device to emit laser to the second reflecting target, measures the distance and horizontal elevation between the second reflecting target and the second laser ranging device, and checks the levelness and the rotation angle of the first laser ranging device by taking the actual position of the second reflecting target as a reference;
then, the worker rotates the second laser ranging device to a position opposite to the first reflecting target, operates the second laser ranging device to emit laser to the first reflecting target, measures the distance between the first reflecting target and the second laser ranging device, and measures the actual offset of the first reflecting target; when the first reflection target is placed near the point to be detected and the three-dimensional coordinate deviation value is measured to be more than 5 cm, the electric control device controls the audible and visual alarm to send out an audible and visual alarm to remind a worker to correct the deviation of the hanging basket;
finally, the second laser ranging device of the worker rotates to a position opposite to the third reflecting target, the third laser ranging device is operated to emit laser to the third reflecting target, the distance between the third reflecting target and the second laser ranging device is measured, and the actual offset of the third reflecting target is measured; when the third reflective target is placed near the point to be measured and the three-dimensional coordinate deviation value is measured to be more than 5 cm, the electronic control device controls the audible and visual alarm to send out an audible and visual alarm to remind a worker to correct the deviation of the hanging basket;
and continuously monitoring the deviation of the hanging basket through the steps in the running process of the hanging basket and when the hanging basket stops running in place.
2. The continuous monitoring method according to claim 1, characterized in that: and the first mounting upright post and the second mounting upright post are both connected with a protective cover.
3. The continuous monitoring method according to claim 1, characterized in that: the electric control device is a PLC or a singlechip.
4. The continuous monitoring method according to claim 1, characterized in that: and a set of reflecting targets are respectively arranged on the side span hanging basket and the middle span hanging basket at the two sides of the 0# block.
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