CN110963413A - Crane control system - Google Patents

Crane control system Download PDF

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Publication number
CN110963413A
CN110963413A CN201911275431.8A CN201911275431A CN110963413A CN 110963413 A CN110963413 A CN 110963413A CN 201911275431 A CN201911275431 A CN 201911275431A CN 110963413 A CN110963413 A CN 110963413A
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CN
China
Prior art keywords
output signal
programmable controller
input signal
interface
signal interface
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Pending
Application number
CN201911275431.8A
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Chinese (zh)
Inventor
刘洪具
皮坤
陈守重
罗磊
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Yunnan Kungang Electronic Information Technology Co ltd
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Yunnan Kungang Electronic Information Technology Co ltd
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Publication date
Application filed by Yunnan Kungang Electronic Information Technology Co ltd filed Critical Yunnan Kungang Electronic Information Technology Co ltd
Priority to CN201911275431.8A priority Critical patent/CN110963413A/en
Publication of CN110963413A publication Critical patent/CN110963413A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00Other constructional features or details
    • B66C13/18Control systems or devices
    • B66C13/48Automatic control of crane drives for producing a single or repeated working cycle; Programme control
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00Other constructional features or details
    • B66C13/18Control systems or devices
    • B66C13/40Applications of devices for transmitting control pulses; Applications of remote control devices
    • B66C13/44Electrical transmitters

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Programmable Controllers (AREA)

Abstract

The invention provides a crane control system, which comprises a power supply, an input signal converter, an input signal interface, an output signal converter, an output signal interface, a communicator and a programmable controller, and is characterized in that: the input signal converter is connected with the input signal interface, the input signal interface is connected with the programmable controller, the programmable controller is connected with the output signal converter, the output signal converter is connected with the output signal interface, the programmable controller is connected with the communicator, and the output signal interface is connected with the execution mechanism. The system is stable, can realize data interaction, avoids information loss and loss, performs information interaction and communication in real time, and provides guarantee for advanced applications such as crane remote monitoring, unmanned crane and crane cloud data.

Description

Crane control system
Technical Field
The invention provides a crane control system, and belongs to the technical field of control.
Background
In order to ensure that the crane is in a good working state and prevent safety accidents, the starting, running, reversing, stopping and the like of the crane need to be controlled by a control device. At present, a contactor + relay control mode is adopted for controlling a crane, or a contactor + relay + PLC system control mode is adopted, so that the problems of too many electric cables and disc surfaces (2-3 disc surfaces or even more of one mechanism) exist, the maintenance and fault troubleshooting are difficult, the system does not have a diagnosis function, and the potential safety hazard existing in the operation process is difficult to troubleshoot. Therefore, there is a need for an improvement of the existing control device.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a modular crane control system with communication and diagnosis functions, so that the system is more stable, data interaction can be realized, information loss and loss are avoided, information interaction and communication are carried out in real time, and meanwhile, high-level applications such as crane remote monitoring, unmanned crane and crane cloud data are guaranteed.
The technical scheme provided by the invention for solving the technical problems is as follows: a crane control system comprises a power supply, an input signal converter, an input signal interface, an output signal converter, an output signal interface, a communicator and a programmable controller, and is characterized in that: the input signal converter is connected with the input signal interface, the input signal interface is connected with the programmable controller, the programmable controller is connected with the output signal converter, the output signal converter is connected with the output signal interface, the programmable controller is connected with the communicator, the output signal interface is connected with the executing mechanism, wherein:
the power supply provides two levels of alternating current and three levels of direct current;
the input signal converter finishes the acquisition and conversion of the state signals of the actuating mechanism and the signal conversion and access of the parameter acquisition equipment;
the input signal interface finishes the collection of various input signals, inputs the signals to the programmable controller according to the preset setting, and generates an instruction after the programmable controller carries out configuration logic judgment and logic combination;
the output signal converter converts the generated instruction of the programmable controller into an instruction code which can be received and identified by the execution mechanism and sends the instruction code to the output signal interface;
the output signal interface transmits the instruction code converted by the output signal converter to the execution mechanism to complete the corresponding action;
the programmable controller generates a logic control instruction after comparing and analyzing the acquired signals through corresponding software, and completes various data interaction and digital processing at the same time, thereby avoiding information loss and loss;
the communicator is used for internally sharing information among the input and output signal converters and the interfaces, externally providing a multi-type and multi-protocol data transmission interface and being controlled by the programmable controller.
The signals comprise a crane closing signal, an operation signal, a fault signal, a limit signal and a protection interlocking signal.
The invention has the following advantages and effects: by adopting the scheme, the system is more stable, can realize data interaction, avoid information loss and loss, carry out information interaction and communication in real time, and provide guarantee for advanced applications such as crane remote monitoring, unmanned crane, crane cloud data and the like.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a power supply circuit diagram of the present invention;
FIG. 3 is a diagram of an input signal converter and input signal interface connection according to the present invention;
FIG. 4 is a diagram of an output signal converter and an output signal interface according to the present invention;
FIG. 5 is a connection diagram of the communication device of the present invention;
fig. 6 is a diagram of the input signal converter and the input signal interface for collecting signals according to the present invention.
In the figure, 1 is a power supply, 2 is an input signal converter, 3 is an input signal interface, and comprises J10, J11, J12 and J13, 4 is an output signal interface, and comprises J20, J21, J22 and J23, 5 is an output signal converter, 6 is a programmable controller and 7 is a communicator.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The invention provides a crane control system, which comprises a power supply 1, an input signal converter 2, an input signal interface 3, an output signal converter 5, an output signal interface 4, a communicator 7 and a programmable controller 6, wherein: input signal converter 2 links to each other with input signal interface 3, and input signal interface 3 links to each other with programmable controller 6, and programmable controller 6 links to each other with output signal converter 5, and output signal converter 5 links to each other with output signal interface 4, and programmable controller 6 links to each other with communicator 7, and output signal interface 4 links to each other with actuating mechanism, wherein:
the power supply 1 provides alternating current with two grades and direct current with three grades, an AC220V power supply is taken out from the main power supply side of the crane and is transmitted by an isolated conventional transformer to obtain direct current 24V and direct current 12V, and the direct current 24V and the direct current 12V are used for supplying power for the input signal converter 2, the output signal converter 5, the input signal interface 3, the output signal interface 4 and the programmable controller 6; the circuit comprises a U1 medium-voltage input, U10, U11 and U12 low-voltage outputs and D11 and D12 direct-current outputs;
the input signal converter 3 finishes the acquisition and conversion of the state signals of the actuating mechanism and the signal conversion and access of the parameter acquisition equipment; the method comprises the following steps that a signal on site is received through an input signal interface 2 and converted into a DC24V contact signal, wherein the signal comprises a crane closing signal, an operation signal, a fault signal, a limit signal, a protection interlocking signal and the like;
the input signal interface 2 finishes the collection of various acquisition signals, inputs the acquisition signals to the programmable controller 6 according to the preset configuration, and generates an instruction after the configuration logic judgment and the logic combination are carried out by the programmable controller 6;
the output signal converter 5 converts the generated instruction of the programmable controller 6 into an instruction code which can be received and recognized by an execution mechanism and sends the instruction code to the output signal interface 4;
the output signal interface 4 issues the instruction code converted by the output signal converter 5 to the execution mechanism to complete the corresponding action;
the programmable controller 6 generates a logic control instruction after comparing, analyzing and processing the acquired signals through corresponding software, and completes various data interaction and digital processing at the same time, thereby avoiding information loss and missing;
the communicator 7 is an RJ45 Ethernet interface and a serial port, supports the communication protocol to be RS-485, is used for internally carrying out information sharing between each input and output signal converter and the interface, externally provides a multi-type and multi-protocol data transmission interface and is controlled by the programmable controller 6.
J10 is the status feedback signal access of the actuating mechanism, and enters J11 after being converted and is sent to the programmable controller 6; j13 is the order input signal cut-in, send into the programmable controller 6 through J12, the programmable controller 6 is according to setting up J11, J12 signal and combining the shared state signal of other communication mechanisms in advance, carry on the logical processing and receive the executive mechanism and carry out the order, J21 will carry out the order conversion, will carry out the order that the executive mechanism can discern and convey to the executive mechanism; j22 carries out human-computer visual interaction with the processed indication state and alarm information state feedback.
Although specific embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are merely examples and that many variations or modifications may be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims.

Claims (2)

1. A crane control system comprises a power supply, an input signal converter, an input signal interface, an output signal converter, an output signal interface, a communicator and a programmable controller, and is characterized in that: the input signal converter is connected with the input signal interface, the input signal interface is connected with the programmable controller, the programmable controller is connected with the output signal converter, the output signal converter is connected with the output signal interface, the programmable controller is connected with the communicator, the output signal interface is connected with the executing mechanism, wherein:
the power supply provides two levels of alternating current and three levels of direct current;
the input signal converter finishes the acquisition and conversion of the state signals of the actuating mechanism and the signal conversion and access of the parameter acquisition equipment;
the input signal interface finishes the collection of various input signals, inputs the signals to the programmable controller according to the preset setting, and generates an instruction after the programmable controller carries out configuration logic judgment and logic combination;
the output signal converter converts the generated instruction of the programmable controller into an instruction code which can be received and identified by the execution mechanism and sends the instruction code to the output signal interface;
the output signal interface transmits the instruction code converted by the output signal converter to the execution mechanism to complete the corresponding action;
the programmable controller generates a logic control instruction after comparing and analyzing the acquired signals through corresponding software, and completes various data interaction and digital processing at the same time, thereby avoiding information loss and loss;
the communicator is used for internally sharing information among the input and output signal converters and the interfaces, externally providing a multi-type and multi-protocol data transmission interface and being controlled by the programmable controller.
2. The crane control system of claim 1, wherein: the signals comprise a crane closing signal, an operation signal, a fault signal, a limit signal and a protection interlocking signal.
CN201911275431.8A 2019-12-12 2019-12-12 Crane control system Pending CN110963413A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911275431.8A CN110963413A (en) 2019-12-12 2019-12-12 Crane control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911275431.8A CN110963413A (en) 2019-12-12 2019-12-12 Crane control system

Publications (1)

Publication Number Publication Date
CN110963413A true CN110963413A (en) 2020-04-07

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CN201911275431.8A Pending CN110963413A (en) 2019-12-12 2019-12-12 Crane control system

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CN (1) CN110963413A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101190768A (en) * 2006-11-30 2008-06-04 蔡秀山 Crane gliding-proof hook control device
CN204656748U (en) * 2015-02-13 2015-09-23 泰戈特(北京)工程技术有限公司 A kind of control system for screen-bowl sedimentation centrifuge
KR101786896B1 (en) * 2017-03-22 2017-10-17 디엠씨(주) The Level Positioning system for Lattice Boom Offshore Crane by using Hydraulic proportional valve and PLC
CN109678058A (en) * 2018-12-17 2019-04-26 云南昆钢电子信息科技有限公司 A kind of crane executing mechanism secondary control loop system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101190768A (en) * 2006-11-30 2008-06-04 蔡秀山 Crane gliding-proof hook control device
CN204656748U (en) * 2015-02-13 2015-09-23 泰戈特(北京)工程技术有限公司 A kind of control system for screen-bowl sedimentation centrifuge
KR101786896B1 (en) * 2017-03-22 2017-10-17 디엠씨(주) The Level Positioning system for Lattice Boom Offshore Crane by using Hydraulic proportional valve and PLC
CN109678058A (en) * 2018-12-17 2019-04-26 云南昆钢电子信息科技有限公司 A kind of crane executing mechanism secondary control loop system

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Application publication date: 20200407

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