CN113148854A - Bridge crane remote monitoring system - Google Patents
Bridge crane remote monitoring system Download PDFInfo
- Publication number
- CN113148854A CN113148854A CN202110340854.4A CN202110340854A CN113148854A CN 113148854 A CN113148854 A CN 113148854A CN 202110340854 A CN202110340854 A CN 202110340854A CN 113148854 A CN113148854 A CN 113148854A
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- Prior art keywords
- bridge crane
- camera
- remote terminal
- module
- monitoring system
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C17/00—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/16—Applications of indicating, registering, or weighing devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/40—Applications of devices for transmitting control pulses; Applications of remote control devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/48—Automatic control of crane drives for producing a single or repeated working cycle; Programme control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
- B66C15/06—Arrangements or use of warning devices
- B66C15/065—Arrangements or use of warning devices electrical
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Studio Devices (AREA)
Abstract
The invention relates to the technical field of bridge crane remote monitoring equipment, in particular to a bridge crane remote monitoring system, which comprises a remote terminal for monitoring a bridge crane, a camera video signal reading module, a PLC network interface, an inclination angle sensor arranged on a steel wire rope for a bridge crane lifting appliance, an anemoscope arranged on the bridge crane and a camera module; the camera module, the tilt angle sensor, the anemoscope and the camera video signal reading module are communicated with the remote terminal through the wireless module; the camera module comprises a plurality of monitoring cameras and camera mounting devices; the remote terminal comprises a video decoder and a display screen connected with the video decoder. The working state of the bridge crane can be conveniently monitored in real time by arranging the remote terminal; the monitoring camera is arranged, so that the monitoring range of the device is conveniently improved; the camera installation device is arranged, so that the position, the direction and the angle of the monitoring camera can be conveniently adjusted, and the function and the safety of adjusting the monitoring picture of the camera device by the camera installation device are improved.
Description
Technical Field
The invention relates to the technical field of bridge crane remote monitoring equipment, in particular to a bridge crane remote monitoring system.
Background
A bridge crane is a crane used for loading and unloading operations on a wharf, and the operational capacity of the bridge crane determines the cargo handling capacity of one wharf. At present, bridge crane machines are increasingly large in size, the problems that the overall structure is soft and impact vibration is overlarge in operation and the like exist, normal operation of a port is affected if the bridge crane is stopped due to failure during operation, economic loss is caused, and the hidden trouble of the bridge crane needs to be found in time to react to the failure. Therefore, it is very important to monitor whether the operation of the bridge crane fails, and the safety of the bridge crane not only affects the safety of construction, but also affects the throughput capacity of wharf goods. In order to ensure that the bridge crane equipment normally operates, the bridge crane equipment needs to be remotely monitored, and a monitoring camera is arranged on the bridge crane and is used for observing the lifting operation condition of a lifting appliance so as to assist safety production.
The existing shore bridge crane equipment is difficult to rapidly grab a container when the visual field is poor in foggy days, rainy days and the like, and workers cannot accurately operate the bridge crane, so that the working efficiency of the bridge crane is low, and the problem and the safety problem that the bridge crane is difficult to work when the visual field is poor in foggy days, rainy days and the like exist.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides a bridge crane remote monitoring system which is high in safety and strong in function of adjusting the monitoring picture of a camera device.
In order to achieve the purpose, the invention provides the following technical scheme:
a remote monitoring system for a bridge crane, comprising:
and the camera module is arranged on the bridge crane and is used for shooting the running video of the bridge crane.
The remote terminal is used for monitoring the bridge crane, is communicated with the camera module and comprises a video decoder for decoding video signals and a display screen connected with the video decoder;
the inclination angle sensor is communicated with the remote terminal, is arranged on the steel wire rope for the bridge crane lifting appliance and is used for measuring the inclination angle of the steel wire rope for the lifting appliance;
the anemoscope is communicated with the remote terminal, is arranged on the bridge crane and is used for measuring the wind speed near the bridge crane;
the camera video signal reading module is communicated with the remote terminal and is used for encoding the video information shot by the camera module into a video signal;
the PLC network interface is electrically connected with the remote terminal and is used for acquiring PLC state information, and the PLC state information comprises lifting appliance height information and box type information;
preferably, the system also comprises a wireless module, and the camera module, the tilt sensor, the anemoscope and the camera video signal reading module are communicated with the remote terminal through the wireless module;
preferably, the camera module comprises a plurality of camera mounting devices respectively mounted on the lower end face of the bridge crane trolley frame platform, the inner side faces of the two supporting legs and the lower end face of the lifting appliance, a monitoring camera is arranged on the camera mounting devices, and the monitoring camera is electrically connected with the camera video signal reading module.
Preferably, the camera mounting device comprises a mounting seat for mounting and dismounting the monitoring camera, a lifting mechanism and a rotating mechanism, the lifting mechanism is arranged on the bridge crane, the rotating mechanism is arranged at the upper end of the lifting mechanism, and the lifting mechanism and the rotating mechanism are communicated with the remote terminal through a wireless module.
Preferably, the lifting mechanism comprises a base, an electric push rod and a connecting plate, the base is arranged on the bridge crane, the fixed end of the electric push rod is fixedly arranged on the base, the telescopic end of the electric push rod is fixedly connected with the connecting plate, and the rotating mechanism is arranged on the connecting plate.
Preferably, the rotating mechanism comprises a rotating disc and a rotating shaft hinged to the center of the rotating disc, a placing groove is formed in the connecting plate, a rotating shaft is inserted into the placing groove, the center of the lower end face of the rotating disc is fixedly arranged at the upper end of the rotating shaft, and a mounting seat is fixedly arranged on the rotating shaft; the rotary table is fixedly provided with a first fixing block and a second fixing block, the rotary shaft is arranged between the two first fixing blocks and the second fixing block through a bolt, and the bolt is fixedly connected with the hinged end of the rotary shaft.
Preferably, the first fixing block is provided with a first jack, the second fixing block is provided with a second jack, and two ends of the plug pin are respectively inserted into the first jack and the second jack.
Preferably, the video terminal further comprises a memory electrically connected with the remote terminal, and the memory is used for storing the video information.
Preferably, the system further comprises an acousto-optic alarm which is communicated with the remote terminal through the wireless module.
Preferably, the monitoring camera is a 4k or more camera.
Compared with the prior art, the invention has the beneficial effects that:
the method comprises the steps that a camera module shoots a bridge crane process to obtain bridge crane operation video information, a camera video signal reading module encodes the video information shot by the camera module into a video signal, and the video signal is identified, positioned and measured through a remote terminal and then subjected to image processing; then the PLC network interface obtains PLC state information, relevant parameters are input into the remote terminal, the remote terminal outputs instructions to the servo motor, the servo motor controls linkage to correspondingly move the bridge crane body, and then the bridge crane clamping jaw is accurately aligned with the fixing groove of the container, so that the bridge crane can accurately grab the container; the remote terminal is arranged to receive the inclination angle information of the steel wire rope for the measuring lifting appliance of the inclination angle sensor and the wind speed information near the bridge crane measured by the anemoscope, so that the bridge crane can be normally operated in foggy days and rainy days;
in order to overcome poor visual field weather conditions such as heavy fog days, wind and rain days and the like, a mode of jointly testing the operational environment data of the bridge crane by using an inclination angle sensor, an anemoscope and a camera module is adopted, corresponding obtained video signals, inclination angle information and wind speed information are synthesized through a remote terminal, and the obtained operational environment data of the bridge crane can truly reflect the actual situation of the bridge crane; basic container hoisting information and real-time video information of all containers and distance difference values between the bridge cranes and the containers in the real scene are displayed on a display screen arranged on the remote terminal, so that the observation of operators is facilitated.
The device adopts the tilt angle sensor, the anemoscope and the camera module to carry out auxiliary positioning on the bridge crane hoisting device, thereby being convenient for monitoring the working state of the bridge crane in real time and overcoming the difficulty that the bridge crane cannot work in poor vision in foggy days, rainy days and the like; the container can be rapidly grabbed by the bridge crane, the handling efficiency of the port is improved, the operation accuracy of workers is improved, and the safety of the device is improved.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a schematic front view of the present invention;
fig. 3 is a schematic structural view of the camera mounting apparatus of the present invention.
In the figure: 1. a remote terminal; 11. a video decoder; 12. a display screen; 2. a camera video signal reading module; 3. a tilt sensor; 4. an anemometer; 5. a camera module; 51. a surveillance camera; 510. a mounting seat; 52. a camera mounting device; 520. a lifting mechanism; 521. a rotating mechanism; 53. a base; 54. an electric push rod; 55. a connecting plate; 56. a turntable; 561. a first fixed block; 562. a second fixed block; 57. a rotating shaft; 58. a bolt; 59. a rotating shaft; 6. a PLC network interface; 7. a wireless module; 8. an audible and visual alarm; 9. a reservoir.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-2, the remote monitoring system for an axle crane of the present embodiment includes:
the remote terminal 1 is used for monitoring a bridge crane and comprises a video decoder 11 for decoding a video signal and a display screen 12 connected with the video decoder 11;
the inclination angle sensor 3 is communicated with the remote terminal 1, is arranged on the steel wire rope for the bridge crane lifting appliance and is used for measuring the inclination angle of the steel wire rope for the lifting appliance;
the anemoscope 4 is communicated with the remote terminal 1, is arranged on the bridge crane and is used for measuring the wind speed nearby the bridge crane;
the camera video signal reading module 2 is communicated with the remote terminal 1 and is used for encoding the video information shot by the camera module 5 into a video signal;
the PLC network interface 6 is electrically connected with the remote terminal 1 and used for acquiring PLC state information, and the PLC state information comprises lifting appliance height information and box type information;
the camera module 5 is communicated with the remote terminal 1, is arranged on a bridge crane and is used for shooting the running video of the bridge crane, and comprises a plurality of camera mounting devices 52 which are respectively mounted on the lower end face of a bridge crane trolley frame platform, the inner side faces of two supporting legs and the lower end face of a lifting appliance, wherein monitoring cameras 51 are arranged on the camera mounting devices 52, and the monitoring cameras 51 are electrically connected with the camera video signal reading module 2.
The bridge crane operation video information is obtained by shooting the bridge crane process through the camera module 5, the video information shot by the camera module is coded into a video signal through the camera video signal reading module 2, and the video signal is identified, positioned and measured through the remote terminal 1 and then subjected to image processing; then the PLC network interface 6 acquires PLC state information, relevant parameters are input into the remote terminal 1, the remote terminal 1 outputs instructions to the servo motor to control linkage to correspondingly move the bridge crane body, and then the bridge crane can accurately grab the container by accurately aligning a bridge crane clamping jaw with a fixing groove of the container; the remote terminal 1 is arranged to receive the inclination angle information of the steel wire rope for the lifting appliance measured by the inclination angle sensor 3 and the wind speed information near the bridge crane measured by the anemoscope 4, so that the bridge crane can be normally operated in foggy days and rainy days;
in order to overcome poor visual field weather conditions such as heavy fog days, wind and rain days and the like, a mode of jointly testing the operational environment data of the bridge crane by using the tilt angle sensor 3, the anemoscope 4 and the camera module 5 is adopted, corresponding obtained video signals, tilt angle information and wind speed information are subjected to synthesis processing through a remote terminal, and the obtained operational environment data of the bridge crane can truly reflect the actual situation of the bridge crane; the display screen 12 arranged on the remote terminal 1 is used for displaying basic container hoisting information, real-time video information and a distance difference value between a bridge crane and a container in a real scene, so that an operator can observe the information conveniently;
the device adopts the tilt angle sensor 3, the anemoscope 4 and the camera module 5 to carry out auxiliary positioning on the bridge crane hoisting device, thereby being convenient for monitoring the working state of the bridge crane in real time and overcoming the difficulty that the bridge crane cannot work in poor visual field such as heavy fog days, rainy days and the like; the container can be rapidly grabbed by the bridge crane, the handling efficiency of the port is improved, the operation accuracy of workers is improved, and the safety of the device is improved.
In the embodiment, the device further comprises a wireless module 7, the camera module 5, the tilt sensor 3, the anemoscope 4 and the camera video signal reading module 2 are communicated with the remote terminal 1 through the wireless module 7, and the convenience of the device is further improved.
As shown in fig. 3, in the present embodiment, the camera mounting device 52 includes a mounting base 510 for mounting and dismounting the monitoring camera 51, a lifting mechanism 520 and a rotating mechanism 521, the lifting mechanism 520 is disposed on the bridge crane, the rotating mechanism 521 is disposed at the upper end of the lifting mechanism 520, and both the lifting mechanism 520 and the rotating mechanism 521 communicate with the remote terminal 1 through the wireless module 7. The lifting mechanism 520 and the rotating mechanism 521 are arranged, so that the position, the direction and the angle of the monitoring camera 51 can be adjusted conveniently, and the function of adjusting the monitoring picture of the camera device is further improved.
In this embodiment, the lifting mechanism 520 includes a base 53, an electric push rod 54 and a connecting plate 55, the base 53 is disposed on the bridge crane, a fixed end of the electric push rod 54 is fixedly disposed on the base 53, a telescopic end of the electric push rod 54 is fixedly connected to the connecting plate 55, and the rotating mechanism 521 is disposed on the connecting plate 55. The electric push rod 54 is internally provided with a first motor which is in wireless communication with the remote terminal 1, so that the position of the monitoring camera 51 can be conveniently adjusted, and the function of adjusting the monitoring picture of the camera device is further improved.
In this embodiment, the rotating mechanism 521 includes a rotating disc 56 and a rotating shaft 57 hinged to the center of the rotating disc 56, a placing groove 551 is provided on the connecting plate 55, a rotating shaft 59 is inserted into the placing groove 551, the center of the lower end face of the rotating disc 56 is fixedly arranged at the upper end of the rotating shaft 59, and a mounting seat 510 is fixedly arranged on the rotating shaft 57; the rotary disc 56 is fixedly provided with a first fixed block 561 and a second fixed block 562, the rotary shaft 57 is arranged between the two first fixed blocks 561 and the second fixed block 562 through a bolt 58, and the bolt 58 is fixedly connected with the hinged end of the rotary shaft 57. The bottom of pivot 59 is connected with the second motor, and second motor and remote terminal 1 wireless communication, the second motor drives the carousel through pivot 59 and rotates, is convenient for adjust surveillance camera 51's direction, has further improved the function of this device adjustment camera device control picture.
In this embodiment, a first jack is disposed on the first fixing block 561, a second jack is disposed on the second fixing block 562, two ends of the plug pin 58 are respectively inserted into the first jack and the second jack, one end of the plug pin 58 is connected to a third motor, the third motor is in wireless communication with the remote terminal 1, and the third motor drives the rotating shaft 57 to rotate through the plug pin 58, so that the angle of the monitoring camera 51 can be adjusted conveniently, and the function of adjusting the monitoring picture of the camera is further improved.
In this embodiment, the device further includes a storage 9 electrically connected to the remote terminal 1, the type of the storage 9 is 512M FLASH, and the storage 9 is used for storing video information, so as to further improve convenience of the device.
In the embodiment, the device further comprises an acousto-optic alarm 8, the acousto-optic alarm 8 is in communication with the remote terminal 1 through the wireless module 7, and the type of the acousto-optic alarm 8 is TGSG-01T and is used for receiving an alarm command of the remote terminal 1 and reminding other people in a site to leave, so that the safety of the device is further improved.
In this embodiment, the monitoring camera 51 is a 4k or more camera, so as to ensure the definition of the shot video, improve the accuracy of the operation of the operator, and further improve the safety of the device.
The working steps of the embodiment are as follows:
firstly, a monitoring camera 11 acquires video information of a bridge crane, an inclination angle sensor 3 measures inclination angle information of a steel wire rope for a lifting appliance, and an anemoscope 4 measures wind speed information near the bridge crane;
secondly, the video signal reading module 2 of the camera encodes the video information shot by the camera module 5 into a video signal;
thirdly, transmitting the inclination angle signal, the wind speed signal and the video signal to the remote terminal 1 through the wireless module 7;
step four, the video decoder 11 decodes the video signal;
step five, operating the camera installation device 52 to adjust the position, direction and angle of the monitoring camera 51 according to the video displayed on the display screen 12 after the video signal is decoded by the operator;
and step six, if the operator judges that the bridge crane is in a dangerous condition according to the inclination angle signal, the wind speed signal and the video signal, sending an alarm command to the acousto-optic alarm 8 through the remote terminal 1, and sending an alarm by the acousto-optic alarm 8.
In the description of the present invention, it is to be understood that the terms "left", "right", "inside", "outside", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Furthermore, the term "comprises" and any variations thereof is intended to cover non-exclusive inclusions.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (10)
1. A remote monitoring system for a bridge crane is characterized by comprising:
and the camera module (5) is arranged on the bridge crane and is used for shooting the running video of the bridge crane.
The remote terminal (1) is used for monitoring the bridge crane, is communicated with the camera module (5), and comprises a video decoder (11) used for decoding a video signal and a display screen (12) connected with the video decoder (11);
the inclination angle sensor (3) is communicated with the remote terminal (1), is arranged on the steel wire rope for the bridge crane lifting appliance and is used for measuring the inclination angle of the steel wire rope for the lifting appliance;
the anemoscope (4) is communicated with the remote terminal (1), is arranged on the bridge crane and is used for measuring the wind speed nearby the bridge crane;
the camera video signal reading module (2) is communicated with the remote terminal (1) and is used for encoding the video information shot by the camera module (5) into a video signal;
and the PLC network interface (6) is electrically connected with the remote terminal (1) and is used for acquiring PLC state information, and the PLC state information comprises lifting appliance height information and box type information.
2. The remote monitoring system for the bridge crane according to claim 1, wherein: the intelligent control system is characterized by further comprising a wireless module (7), wherein the camera module (5), the tilt angle sensor (3), the anemoscope (4) and the camera video signal reading module (2) are communicated with the remote terminal (1) through the wireless module (7).
3. A remote monitoring system for a bridge crane according to claim 2, wherein: the camera module (5) comprises a plurality of camera mounting devices (52) which are respectively mounted on the lower end face of the bridge crane trolley frame platform, the inner side faces of the two supporting legs and the lower end face of the lifting appliance, a monitoring camera (51) is arranged on the camera mounting devices (52), and the monitoring camera (51) is electrically connected with the camera video signal reading module (2).
4. A remote monitoring system for a bridge crane according to claim 3, wherein: the camera mounting device (52) comprises a mounting base (510) used for mounting and dismounting the monitoring camera (51), a lifting mechanism (520) and a rotating mechanism (521), wherein the lifting mechanism (520) is arranged on the bridge crane, the rotating mechanism (521) is arranged at the upper end of the lifting mechanism (520), and the lifting mechanism (520) and the rotating mechanism (521) are communicated with the remote terminal (1) through a wireless module (7).
5. A remote monitoring system for a bridge crane according to claim 4, characterized in that: the lifting mechanism (520) comprises a base (53), an electric push rod (54) and a connecting plate (55), the base (53) is arranged on the bridge crane, the fixed end of the electric push rod (54) is fixedly arranged on the base (53), the telescopic end of the electric push rod (54) is fixedly connected with the connecting plate (55), and the rotating mechanism (521) is arranged on the connecting plate (55).
6. A remote monitoring system for a bridge crane according to claim 5, characterized in that: the rotating mechanism (521) comprises a rotating disc (56) and a rotating shaft (57) hinged to the center of the rotating disc (56), a placing groove (551) is formed in the connecting plate (55), a rotating shaft (59) is inserted into the placing groove (551), the center of the lower end face of the rotating disc (56) is fixedly arranged at the upper end of the rotating shaft (59), and a mounting seat (510) is fixedly arranged on the rotating shaft (57); the rotary table (56) is fixedly provided with a first fixing block (561) and a second fixing block (562), the rotating shaft (57) is arranged between the first fixing block (561) and the second fixing block (562) through a bolt (58), and the bolt (58) is fixedly connected with the hinged end of the rotating shaft (57).
7. A remote monitoring system for a bridge crane according to claim 6, characterized in that: a first jack is arranged on the first fixing block (561), a second jack is arranged on the second fixing block (562), and two ends of the plug pin (58) are respectively inserted into the first jack and the second jack.
8. A remote monitoring system for a bridge crane according to claim 5, characterized in that: the video information processing system further comprises a storage (9) electrically connected with the remote terminal (1), wherein the storage (9) is used for storing video information.
9. A remote monitoring system for a bridge crane according to claim 8, wherein: the system also comprises an acousto-optic alarm (8), wherein the acousto-optic alarm (8) is communicated with the remote terminal (1) through a wireless module (7).
10. The remote monitoring system for the bridge crane according to claim 1, wherein: the monitoring camera (51) is a 4k or more camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110340854.4A CN113148854A (en) | 2021-03-30 | 2021-03-30 | Bridge crane remote monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110340854.4A CN113148854A (en) | 2021-03-30 | 2021-03-30 | Bridge crane remote monitoring system |
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| CN113148854A true CN113148854A (en) | 2021-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110340854.4A Pending CN113148854A (en) | 2021-03-30 | 2021-03-30 | Bridge crane remote monitoring system |
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| CN (1) | CN113148854A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115108469A (en) * | 2022-06-22 | 2022-09-27 | 宁波梅东集装箱码头有限公司 | Remote control method and system for integrated bridge crane equipment |
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| CN115108469A (en) * | 2022-06-22 | 2022-09-27 | 宁波梅东集装箱码头有限公司 | Remote control method and system for integrated bridge crane equipment |
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Application publication date: 20210723 |