Automatic monitoring, early warning and control system for operation of bridge girder erection machine

Abstract

The invention relates to the technical field of bridge girder erection machines, in particular to an automatic monitoring, early warning and control system for bridge girder erection machine operation, which comprises a detection group, a memory, a remote server and a man-machine interaction module, the memory is used for receiving the wind direction data, the wind speed data and the spacing data, the remote server is used for judging a risk value according to the wind direction data, the wind speed data and the spacing data of the memory and sending out an early warning signal, and the man-machine interaction module is used for a worker to control the front and rear hoisting trolleys to start or stop starting according to the early warning signal. The bridge girder erection machine operation automatic monitoring, early warning and control system can monitor the situation that the wind power borne by the front crane carriage and the rear crane carriage is greatly different, and therefore follow-up early warning and control are carried out in time.

Description

Technical Field

[0001] The invention relates to the technical field of bridge erection machines, in particular to an automatic monitoring, early warning and control system for bridge erection machine operations. Background Art

[0002] A bridge erecting machine is a heavy mechanical equipment specially used for bridge construction. It is widely used in the construction of infrastructure such as roads, railways and urban rail transit. Its main function is to safely and quickly install prefabricated bridge components to designated locations. The structure of a bridge erecting machine includes a fuselage, a lifting trolley and multiple outriggers. Among them, the fuselage is the main part of the bridge erecting machine, usually made of steel, with high strength and stability. The lifting trolley is a key part of the bridge erecting machine, used to lift and move bridge components. The outrigger is an important structure that supports the fuselage of the bridge erecting machine during operation. It can be retracted or unfolded to maintain the stability of the fuselage. Usually, there are two lifting trolleys, including a front lifting trolley and a rear lifting trolley. The cooperation between the front lifting trolley and the rear lifting trolley can share the weight and reduce the load of a single lifting trolley, thereby improving the operation efficiency and stability.

[0003] When using the front and rear hoisting trolleys to lift bridge components at the same time, it is necessary to ensure that the front and rear hoisting trolleys move at the same speed in the same direction to avoid the bridge components being tilted and deformed due to the shortening or lengthening of the distance between the front and rear hoisting trolleys. At present, it is found in actual construction that the wind forces on the front and rear hoisting trolleys are quite different under special circumstances. For example, when transporting small items quickly under strong winds, the distance between the front and rear hoisting trolleys is small. At this time, when moving with the wind, the rear hoisting trolley is subject to a larger boost force and is prone to accelerate relative to the front hoisting trolley. Or when moving against the wind, the front hoisting trolley is subject to a larger wind resistance and is prone to slow down relative to the rear hoisting trolley. As a result, it is difficult to ensure that the front and rear hoisting trolleys move at the same speed in the same direction, which undoubtedly increases the risk of tilting and deformation of the hoisted bridge components. Summary of the invention

[0004] In order to be able to monitor the situation where there is a large difference in wind force experienced by the front and rear crane trolleys, and thus to carry out subsequent early warning and control in a timely manner, the present application provides an automatic monitoring, early warning and control system for bridge erection machine operations.

[0005] The present invention provides an automatic monitoring, early warning and control system for bridge erection machine operation, which adopts the following technical solutions: An automatic monitoring, early warning and control system for bridge erection machine operations, comprising a detection group, a memory, a remote server and a human-computer interaction module, wherein the detection group is used to collect the current wind direction, wind speed and the distance between two front and rear lifting trolleys, the memory is used to receive wind direction data, wind speed data and distance data, the remote server is used to determine the risk value based on the wind direction data, wind speed data and distance data in the memory and to issue an early warning signal, and the human-computer interaction module is used for the staff to control the two front and rear lifting trolleys to slow down and start or stop starting according to the early warning signal.

[0006] Preferably, the remote server first determines the angle between the current wind direction and the arrangement direction of the front and rear two lifting trolleys based on the wind direction data. If the current angle value is less than the angle threshold, it means that the current wind direction is close to being parallel to the moving direction of the front and rear two lifting trolleys. Then, it further determines based on the wind speed data and the spacing data. The risk value increases synchronously with the increase of wind speed or the decrease of spacing. If the current risk value exceeds the risk threshold, it means that the front and rear lifting trolleys are prone to speed differences when moving small parts quickly, thereby increasing the risk of tilting and deformation of bridge components. At this time, the remote server sends a warning signal to remind the staff to operate the human-computer interaction module.

[0007] Preferably, in the remote server, the relationship between the risk value and the wind direction data, wind speed data and spacing data is: risk value = wind direction coefficient * wind speed coefficient * spacing coefficient, wherein the wind direction coefficient is 0 or 1, the wind speed coefficient and the spacing coefficient are both between 0-1, the wind speed coefficient increases with the increase of the wind speed data, and the spacing coefficient increases with the decrease of the spacing data.

[0008] Preferably, the detection group includes a wind vane, which is arranged on the fuselage of the bridge-building machine and is used to detect the current wind direction.

[0009] Preferably, the detection group includes an anemometer, which is arranged on the fuselage of the bridge-building machine and is used to detect the current wind speed.

[0010] Preferably, the detection group includes a distance sensor, which includes a transmitting end and a reflecting end, and the transmitting end and the reflecting end are respectively located on the side walls on the same side of the front lifting trolley and the rear lifting trolley, and the distance sensor is used to detect the distance between the front and rear lifting trolleys.

[0011] Preferably, a movable mounting platform is provided on the fuselage of the bridge-building machine, and the mounting platform is maintained between the front and rear lifting trolleys by moving. The wind vane and the anemometer are arranged on the mounting platform. The wind vane is located next to the sensing path of the distance sensor, and the wind vane can block the sensing path of the distance sensor during rotation.

[0012] Preferably, the anemometer is arranged on the wind vane, and the anemometer swings following the wind vane.

[0013] Preferably, the anemometer is connected to the distance sensor signal, so that when the distance sensor detects the spacing data, the anemometer restarts and detects the wind speed.

[0014] Preferably, when the detection group detects the wind direction data, wind force data and spacing data, the front and rear lifting trolleys remain stationary.

[0015] The beneficial effects of the present invention are: 1. By detecting the wind direction, wind force and the distance between the front and rear crane trolleys, it is possible to monitor the situation where there is a large difference in the wind force received by the front and rear crane trolleys, so as to carry out subsequent early warning and control in time; 2. By judging whether the distance sensor can detect the spacing data, the remote server can determine whether the angle between the current wind direction and the arrangement direction of the front and rear cranes is less than the angle threshold, that is, whether the current wind direction will cause a speed difference in the movement of the front and rear cranes. Therefore, it is only necessary to connect the distance sensor to the remote server for signal connection to monitor the wind direction data and the spacing data at the same time, thereby achieving the effect of simplifying the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of the bridge erecting machine in the embodiment of the present application; Figure 2 This is a system module diagram of the automatic monitoring, early warning and control system in the embodiment of the present application; Figure 3 is a top view of the bridge erecting machine in the embodiment of the present application when the wind direction coefficient is 0; Figure 4 is a top view of the bridge erecting machine in the embodiment of the present application when the wind direction coefficient is 1; Explanation of the accompanying reference numerals: 1. body; 2. front lifting trolley; 3. rear lifting trolley; 4. mounting platform; 5. distance sensor; 6. wind vane. DETAILED DESCRIPTION

[0017] The following will be combined with the attached Figure 1 -Attached Figure 4 The present invention is further illustrated by the following embodiments.

[0018] This embodiment discloses an automatic monitoring, early warning and control system for bridge erection machine operations.

[0019] Reference Figure 1 and Figure 2The automatic monitoring, early warning and control system for bridge-building machine operations includes a detection group, a storage device, a remote server and a human-computer interaction module. The detection group is used to collect the current wind direction, wind speed and the distance between the front and rear lifting trolleys. The storage device is used to receive wind direction data, wind speed data and distance data. The remote server is used to determine the risk value according to the wind direction data, wind speed data and distance data in the storage device and to issue an early warning signal. The human-computer interaction module is used for the staff to control the front and rear lifting trolleys to slow down or stop starting according to the early warning signal. Specifically, the remote server first determines the angle between the current wind direction and the arrangement direction of the front and rear cranes based on the wind direction data. If the current angle value is less than the angle threshold, it means that the current wind direction is close to the moving direction of the front and rear cranes. Then, it is further judged based on the wind speed data and the spacing data. The risk value increases synchronously with the increase of wind speed or the decrease of spacing. If the current risk value exceeds the risk threshold, it means that the front and rear cranes are prone to speed differences when moving small parts quickly, thereby increasing the risk of tilting and deformation of bridge components. At this time, the remote server sends a warning signal to remind the staff to operate the human-computer interaction module. It should be noted that if the angle value between the current wind direction and the arrangement direction of the front and rear cranes is not less than the angle threshold, it means that the front and rear cranes are neither in a downwind situation nor in a headwind situation. At this time, the wind force is not easy to cause a difference in the speed of the front and rear cranes, so there is no need to further judge the risk. To summarize, in the remote server, the relationship between the risk value and the wind direction data, wind speed data and spacing data is: risk value = wind direction coefficient * wind speed coefficient * spacing coefficient, where the wind direction coefficient is 0 or 1, the wind speed coefficient and the spacing coefficient are both between 0 and 1, the wind speed coefficient increases as the wind speed data increases, and the spacing coefficient increases as the spacing data decreases, so that the risk value is between 0 and 1.

[0020] Reference Figures 1 to 4 The detection group includes a wind vane 6, an anemometer and a distance sensor 5. The wind vane 6 and the anemometer are arranged on the fuselage 1 of the bridge erecting machine. The wind vane 6 is used to detect the current wind direction, the anemometer is used to detect the current wind speed, and the distance sensor 5 is arranged between the front and rear lifting trolleys. The distance sensor 5 is used to detect the distance between the front and rear lifting trolleys. Specifically, a mounting platform 4 is arranged on the fuselage 1 of the bridge erecting machine. The wind vane 6 and the anemometer are arranged on the mounting platform 4, and the mounting platform 4 is arranged on the side wall of the fuselage 1 to avoid the mounting platform 4 being located between the gaps between the front and rear lifting trolleys, thereby reducing the influence of the front and rear lifting trolleys on the wind vane 6 and the anemometer. The distance sensor 5 includes a transmitting end and a reflecting end, and the transmitting end and the reflecting end are respectively arranged on the front lifting trolley 2 and the rear lifting trolley 3, and in this embodiment, the transmitting end and the reflecting end of the distance sensor 5 are respectively located on the side wall on the same side of the front lifting trolley 2 and the rear lifting trolley 3.

[0021] Reference Figures 1 to 4 Furthermore, the mounting platform 4 is a movable mounting platform 4, and the mounting platform 4 is kept between the front and rear lifting trolleys by moving. The wind vane 6 is located next to the sensing path of the distance sensor 5. The purpose is that when the wind direction is not close to the arrangement direction parallel to the front and rear lifting trolleys, the angle between the wind direction and the arrangement direction of the front and rear lifting trolleys is large, and one end of the wind vane 6 will block the sensing path of the distance sensor 5. When the wind direction is close to the arrangement direction parallel to the front and rear lifting trolleys, the angle between the wind direction and the arrangement direction of the front and rear lifting trolleys is large. Small, one end of the wind vane 6 no longer blocks the sensing path of the distance sensor 5. Based on this, the remote server can determine whether the angle between the current wind direction and the arrangement direction of the front and rear cranes is less than the angle threshold by judging whether the distance sensor 5 can detect the spacing data, that is, whether the current wind direction will cause a speed difference in the movement of the front and rear cranes. Therefore, it is only necessary to connect the distance sensor 5 to the remote server for signal connection to monitor the wind direction data and the spacing data at the same time, so as to achieve the effect of simplifying the system. Moreover, at this time, by adjusting the distance between the rotating shaft of the wind vane 6 and the sensing path, the angle threshold can be adjusted so that it can be adjusted according to needs.

[0022] Reference Figures 1 to 4 The anemometer is arranged on the wind vane 6 so that the anemometer can swing along with the wind vane 6 to accurately measure the wind speed in the current wind direction. In addition, the anemometer is connected to the distance sensor 5 signal so that when the distance sensor 5 detects the spacing data and determines that the current wind direction will affect the speed difference of the front and rear crane trolleys, the anemometer starts and detects the wind speed, thereby reducing unnecessary detection and reducing the storage pressure of system data.

[0023] Reference Figures 1 to 4 When the detection team detects the wind direction data, wind force data and spacing data, the front and rear cranes remain stationary, so that the mounting platform 4 also remains stationary, avoiding interference of the moving mounting platform 4 with the detection of the wind vane 6. After detecting and determining the risk, the subsequent starting speed of the front and rear cranes is adjusted or stopped according to the risk value, reducing the risk of tilting and deformation of the hoisted bridge components.

[0024] The above are all preferred embodiments of the present invention, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automatic monitoring, early warning and control system for bridge erection machine operation, characterized in that: It includes a detection group, a memory, a remote server and a human-computer interaction module. The detection group is used to collect the current wind direction, wind speed and the distance between the front and rear lifting trolleys. The memory is used to receive wind direction data, wind speed data and distance data. The remote server is used to judge the risk value according to the wind direction data, wind speed data and distance data in the memory and to issue an early warning signal. The human-computer interaction module is used for the staff to control the front and rear lifting trolleys to slow down or stop starting according to the early warning signal.

2. The automatic monitoring, early warning and control system for bridge erection machine operation according to claim 1 is characterized in that: The remote server first determines the angle between the current wind direction and the arrangement direction of the front and rear two lifting trolleys based on the wind direction data. If the current angle value is less than the angle threshold, it means that the current wind direction is close to being parallel to the moving direction of the front and rear two lifting trolleys. Then, it further determines based on the wind speed data and the spacing data. The risk value increases synchronously with the increase of wind speed or the decrease of spacing. If the current risk value exceeds the risk threshold, it means that the front and rear two lifting trolleys are prone to speed differences when moving small parts quickly, thereby increasing the risk of tilting and deformation of bridge components. At this time, the remote server sends a warning signal to remind the staff to operate the human-computer interaction module.

3. The automatic monitoring, early warning and control system for bridge erection machine operation according to claim 2 is characterized in that: In the remote server, the relationship between the risk value and the wind direction data, wind speed data and spacing data is: risk value = wind direction coefficient * wind speed coefficient * spacing coefficient, wherein the wind direction coefficient is 0 or 1, the wind speed coefficient and the spacing coefficient are both between 0-1, the wind speed coefficient increases as the wind speed data increases, and the spacing coefficient increases as the spacing data decreases.

4. The automatic monitoring, early warning and control system for bridge erection machine operation according to claim 3 is characterized in that: The detection group comprises a wind vane (6), which is arranged on the fuselage (1) of the bridge erecting machine, and the wind vane (6) is used to detect the current wind direction.

5. The automatic monitoring, early warning and control system for bridge erection machine operation according to claim 4 is characterized in that: The detection group comprises an anemometer, which is arranged on the fuselage (1) of the bridge erecting machine and is used to detect the current wind speed.

6. The automatic monitoring, early warning and control system for bridge erection machine operation according to claim 5 is characterized in that: The detection group comprises a distance sensor (5), and the distance sensor (5) comprises a transmitting end and a reflecting end, and the transmitting end and the reflecting end are respectively located on the side walls of the same side of the front lifting trolley (2) and the rear lifting trolley (3), and the distance sensor (5) is used to detect the distance between the front and rear lifting trolleys.

7. The automatic monitoring, early warning and control system for bridge erection machine operation according to claim 6 is characterized in that: A movable mounting platform (4) is provided on the fuselage (1) of the bridge erecting machine. The mounting platform (4) is maintained between the front and rear lifting trolleys by moving. The wind vane (6) and the anemometer are arranged on the mounting platform (4). The wind vane (6) is located beside the sensing path of the distance sensor (5). The wind vane (6) can block the sensing path of the distance sensor (5) during rotation.

8. The automatic monitoring, early warning and control system for bridge erection machine operation according to claim 7 is characterized in that: The anemometer is arranged on the wind vane (6), and the anemometer swings along with the wind vane (6).

9. The automatic monitoring, early warning and control system for bridge erection machine operation according to claim 8, characterized in that: The anemometer is signal-connected to the distance sensor (5), so that when the distance sensor (5) detects the spacing data, the anemometer restarts and detects the wind speed.

10. An automatic monitoring, early warning and control system for bridge erection machine operation according to any one of claims 1 to 9, characterized in that: When the detection group detects the wind direction data, wind force data and spacing data, the front and rear lifting trolleys remain stationary.

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