CN112875549A - Electrical remote maintenance system of tower crane - Google Patents
Electrical remote maintenance system of tower crane Download PDFInfo
- Publication number
- CN112875549A CN112875549A CN202110177674.9A CN202110177674A CN112875549A CN 112875549 A CN112875549 A CN 112875549A CN 202110177674 A CN202110177674 A CN 202110177674A CN 112875549 A CN112875549 A CN 112875549A
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- CN
- China
- Prior art keywords
- tower crane
- programmable controller
- sensor
- remote maintenance
- maintenance 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
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/88—Safety gear
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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
- B66C13/00—Other constructional features or details
- B66C13/16—Applications of indicating, registering, or weighing devices
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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
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Selective Calling Equipment (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention relates to an electric remote maintenance system of a tower crane, which is characterized in that a plurality of information acquisition units are matched with the setting of the tower crane and used for acquiring signals of the tower crane in work, a programmable controller is used for acquiring the signals acquired by the information acquisition units and converting the signals into data, a communication link unit is matched with the setting of the programmable controller, the data of the programmable controller are acquired and transmitted, and a communication unit of a maintenance terminal is used for acquiring data information from the communication link unit. The invention can intuitively and clearly show the whole remote maintenance process, can display the fault content on the terminal by pictures and texts when an electrical fault occurs, has accurate, quick and intelligent result, sends a maintenance instruction to the tower crane after a specially damaged part is diagnosed by the remote computer terminal, enables the tower crane to be immediately recovered to use, informs the fault point and the maintenance method of the tower crane, and can ensure that field personnel can replace corresponding accessories by self, thereby greatly shortening the fault repair time and the outage rate of the tower crane.
Description
Technical Field
The present invention relates to cranes; the technical field of load hanging elements or devices for cranes, winches or trolleys, in particular to an electrical remote maintenance system for a tower crane.
Background
The tower crane, also called tower crane, is the most common hoisting equipment on the construction site, and is lifted step by standard knots and used for hoisting construction raw materials such as reinforcing steel bars, wood ridges, concrete, steel pipes and the like for construction. The tower crane is an indispensable device on a construction site.
At present, when electrical faults occur in most tower cranes, professional maintenance personnel are required to go to equipment for maintenance, drivers and managers cannot know what the faults are at all and can know after the professional maintenance personnel check the faults, and due to various reasons, the maintenance personnel cannot arrive at the site at the first time and cannot diagnose and maintain remotely, and the time spent on maintaining or replacing spare parts is long, so that the construction period is influenced by the shutdown of a construction site, sometimes reaches 2-3 days, and economic loss is caused; and some faults are not difficult to find, and the method of sending out maintenance personnel when a fault happens also wastes partial resources, thereby influencing the smooth removal of other more serious faults.
Disclosure of Invention
The invention solves the problems in the prior art, provides an optimized tower crane electric remote maintenance system, has reliable performance, can judge the fault content when the tower crane has an electric fault, quickly eliminates and maintains the electric fault of the tower crane, and solves the problem that the tower crane cannot be repaired immediately after the electric fault occurs, so that the construction site is shut down.
The technical scheme adopted by the invention is that the electric remote maintenance system of the tower crane comprises:
the information acquisition units are arranged in cooperation with the tower crane and used for acquiring signals of the tower crane in operation;
the programmable controller is used for acquiring the signals acquired by the information acquisition unit and converting the signals into data;
the communication link unit is matched with the programmable controller and used for acquiring and transmitting data of the programmable controller;
and the maintenance terminal is provided with a communication unit and is used for obtaining the data information from the communication link unit through the communication unit.
Preferably, the information acquisition unit comprises a frequency converter and a sensor which are arranged in a matching manner.
Preferably, the frequency converter and the programmable controller are connected in a matched manner through a PN bus.
Preferably, the sensor comprises a variable amplitude sensor, a rotary sensor, a lifting sensor, a weight sensor and a torque sensor; the amplitude variation sensor, the rotary sensor and the lifting sensor are arranged in a matched manner with the programmable controller through a matched frequency converter.
Preferably, the information acquisition unit further comprises an instruction input module.
Preferably, the communication link unit includes a wireless data transmission module and a cloud server which are sequentially arranged.
Preferably, the wireless data transmission module is in communication connection with the programmable controller through a 485 bus.
Preferably, the maintenance terminal comprises a computer terminal and/or a mobile terminal; and the maintenance terminal is in communication connection with the cloud server.
Preferably, any tower crane corresponds to a programmable controller, all the programmable controllers are connected in series to the 485 bus, and if data of all the tower cranes from any programmable controller cannot be acquired, a fault occurs at the programmable controller.
Preferably, any tower crane corresponds to a programmable controller, all the programmable controllers are connected to a decentralized network through a 485 bus, and the decentralized network comprises nodes of a wireless data transmission module; if the data of the tower crane corresponding to any programmable controller fails or gives an alarm, the data is broadcasted in a decentralized network, the wireless data transmission module acquires a maintenance strategy from a maintenance terminal and a cloud server, and the failure reason and the maintenance method are prompted on a touch screen in the tower crane; if the programmable controller works normally, the fault or the alarm is cancelled, and confirmation information is returned.
The invention relates to an optimized electric remote maintenance system of a tower crane, which is characterized in that a plurality of information acquisition units are matched with the setting of the tower crane and used for acquiring signals of the tower crane in work, a programmable controller is used for acquiring the signals acquired by the information acquisition units and converting the signals into data, a communication link unit is matched with the setting of the programmable controller, the data of the programmable controller are acquired and transmitted, and a communication unit of a maintenance terminal is used for acquiring data information from the communication link unit.
The invention can intuitively and clearly show the whole remote maintenance process, can display the fault content on the terminal by pictures and texts when an electrical fault occurs, has accurate, quick and intelligent result, sends a maintenance instruction to the tower crane after a specially damaged part is diagnosed by the remote computer terminal, enables the tower crane to be immediately recovered to use, informs the fault point and the maintenance method of the tower crane, and can ensure that field personnel can replace corresponding accessories by self, thereby greatly shortening the fault repair time and the outage rate of the tower crane.
Drawings
Fig. 1 is a schematic structural diagram of a system according to the present invention, which is exemplified by a tower crane and a corresponding programmable controller, wherein arrows indicate signal transmission directions;
fig. 2 is a diagram showing an electrical control principle of the present invention.
Detailed Description
The present invention is described in further detail with reference to the following examples, but the scope of the present invention is not limited thereto.
The invention relates to an electrical remote maintenance system of a tower crane, which comprises:
the information acquisition units are arranged in cooperation with the tower crane and used for acquiring signals of the tower crane in operation;
the information acquisition unit comprises a frequency converter and a sensor which are arranged in a matched mode.
The sensor comprises a variable amplitude sensor, a rotary sensor, a lifting sensor, a weight sensor and a torque sensor; the amplitude variation sensor, the rotary sensor and the lifting sensor are arranged in a matched manner with the programmable controller through a matched frequency converter.
The frequency converter and the programmable controller are connected in a matched mode through a PN bus.
The information acquisition unit further comprises an instruction input module.
The programmable controller is used for acquiring the signals acquired by the information acquisition unit and converting the signals into data;
the communication link unit is matched with the programmable controller and used for acquiring and transmitting data of the programmable controller;
the communication link unit comprises a wireless data transmission module and a cloud server which are sequentially arranged.
The wireless data transmission module is in communication connection with the programmable controller through a 485 bus.
And the maintenance terminal is provided with a communication unit and is used for obtaining the data information from the communication link unit through the communication unit.
The maintenance terminal comprises a computer terminal and/or a mobile terminal; and the maintenance terminal is in communication connection with the cloud server.
In the invention, the sensors comprise conventional sensors and travel limiters, which are arranged at each part of the tower crane and used for indicating each working position of the tower crane; the frequency converter is communicated with the programmable controller through a PN bus communication technology, and the wireless data transmission module is communicated with the programmable controller through a 485 bus communication technology; the programmable controller collects signals of the frequency converter, the sensor and each stroke limiter, transmits the signals to the wireless transmission module, and the wireless transmission module realizes data interaction between the programmable controller and the cloud server through a GPRS wireless communication technology.
In the invention, the maintenance terminal comprises a computer terminal and a mobile terminal, and data interaction is carried out between the maintenance terminal and the cloud server through the Internet by adopting a TCP/IP communication protocol, so that remote monitoring of the running state of the tower crane and remote maintenance of faults are realized.
In the invention, when the tower crane has common electrical faults, a maintenance instruction can be remotely sent to the tower crane through the computer terminal or the mobile phone App, and the programmable controller generates a soft connection point for jumping off a fault point on the premise of ensuring safety, so that the tower crane can be recovered for emergency use, and the outage rate of equipment is greatly reduced.
Any tower crane corresponds to a programmable controller, all the programmable controllers are connected in series to a 485 bus, and if data of all the tower cranes from any programmable controller cannot be acquired, the programmable controller fails.
Any tower crane corresponds to a programmable controller, all the programmable controllers are connected to a decentralized network through a 485 bus, and the decentralized network comprises nodes of a wireless data transmission module; if the data of the tower crane corresponding to any programmable controller fails or gives an alarm, the data is broadcasted in a decentralized network, the wireless data transmission module acquires a maintenance strategy from a maintenance terminal and a cloud server, and the failure reason and the maintenance method are prompted on a touch screen in the tower crane; if the programmable controller works normally, the fault or the alarm is cancelled, and confirmation information is returned.
In the invention, all the programmable controllers are connected in series to the 485 bus, the communication link unit continuously acquires and/or issues information, if a certain node has a fault, the current node cannot communicate because all the programmable controllers are connected in series, and necessarily all the subsequent nodes cannot communicate normally, the current node is required to be maintained or the fault is eliminated, and the system can execute simple self-check by the mode.
According to the invention, an operation instruction, a stroke limiter, a sensor, a frequency converter, a programmable controller and the like of the tower crane are connected with a wireless data transmission module by adopting a 485 bus, and are accessed to a decentralized network through the wireless data transmission module, when a certain tower crane breaks down, a broadcast is carried out in the decentralized network, so that not only can assistance be obtained from a maintenance terminal and a cloud server, but also a maintenance log can be established on an equipment touch screen and the cloud server, and the fault is checked and solved through the maintenance log; the information of any tower crane can be broadcasted and synchronized by using the decentralized network, and nearby support can be rapidly obtained.
In the invention, a circuit breaker is closed to start, the system starts to work, a programmable controller scans the states of all devices and components on a line, the communication with a frequency converter is realized by adopting a PN bus communication technology, the communication with a wireless transmission module is realized by adopting a 485 bus communication technology, the wireless transmission module is used as a bidirectional data transmission module of a programmable control and cloud server, the working data of the tower crane is transmitted to the server in real time, and a computer terminal and a mobile phone App are actively sent to the server to read and write the working data of the tower crane; when the tower crane has a fault (for example, a limit switch fault or a frequency converter alarm), the computer terminal and the mobile phone App display corresponding fault information, a maintenance instruction is remotely sent to the tower crane through the computer terminal or the mobile phone App, the tower crane is immediately recovered to be used, and after the remote maintenance is completed, a telephone informs a client of the fault reason, the fault part, the damaged accessory and the replacement method.
Claims (10)
1. An electric remote maintenance system of tower crane which characterized in that: the system comprises:
the information acquisition units are arranged in cooperation with the tower crane and used for acquiring signals of the tower crane in operation;
the programmable controller is used for acquiring the signals acquired by the information acquisition unit and converting the signals into data;
the communication link unit is matched with the programmable controller and used for acquiring and transmitting data of the programmable controller;
and the maintenance terminal is provided with a communication unit and is used for obtaining the data information from the communication link unit through the communication unit.
2. An electrical remote maintenance system for a tower crane according to claim 1, wherein: the information acquisition unit comprises a frequency converter and a sensor which are arranged in a matched mode.
3. An electrical remote maintenance system for a tower crane according to claim 2, wherein: the frequency converter and the programmable controller are connected in a matched mode through a PN bus.
4. An electrical remote maintenance system for a tower crane according to claim 2, wherein: the sensor comprises a variable amplitude sensor, a rotary sensor, a lifting sensor, a weight sensor and a torque sensor; the amplitude variation sensor, the rotary sensor and the lifting sensor are arranged in a matched manner with the programmable controller through a matched frequency converter.
5. An electrical remote maintenance system for a tower crane according to claim 2, wherein: the information acquisition unit further comprises an instruction input module.
6. An electrical remote maintenance system for a tower crane according to claim 1, wherein: the communication link unit comprises a wireless data transmission module and a cloud server which are sequentially arranged.
7. An electrical remote maintenance system for a tower crane according to claim 6, wherein: the wireless data transmission module is in communication connection with the programmable controller through a 485 bus.
8. An electrical remote maintenance system for a tower crane according to claim 6, wherein: the maintenance terminal comprises a computer terminal and/or a mobile terminal; and the maintenance terminal is in communication connection with the cloud server.
9. An electrical remote maintenance system for a tower crane according to claim 6, wherein: any tower crane corresponds to a programmable controller, all the programmable controllers are connected in series to a 485 bus, and if data of all the tower cranes from any programmable controller cannot be acquired, the programmable controller fails.
10. An electrical remote maintenance system for a tower crane according to claim 6, wherein: any tower crane corresponds to a programmable controller, all the programmable controllers are connected to a decentralized network through a 485 bus, and the decentralized network comprises nodes of a wireless data transmission module; if the data of the tower crane corresponding to any programmable controller fails or gives an alarm, the data is broadcasted in a decentralized network, the wireless data transmission module acquires a maintenance strategy from a maintenance terminal and a cloud server, and the failure reason and the maintenance method are prompted on a touch screen in the tower crane; if the programmable controller works normally, the fault or the alarm is cancelled, and confirmation information is returned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110177674.9A CN112875549A (en) | 2021-02-09 | 2021-02-09 | Electrical remote maintenance system of tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110177674.9A CN112875549A (en) | 2021-02-09 | 2021-02-09 | Electrical remote maintenance system of tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112875549A true CN112875549A (en) | 2021-06-01 |
Family
ID=76056218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110177674.9A Pending CN112875549A (en) | 2021-02-09 | 2021-02-09 | Electrical remote maintenance system of tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112875549A (en) |
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2021
- 2021-02-09 CN CN202110177674.9A patent/CN112875549A/en active Pending
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