Data processing method, electronic control system and medium applied to electronic control system of ship unloader

Abstract

The present invention discloses a data processing method, an electric control system and a medium applied to an electric control system of a ship unloader. The present application relates to the technical field of ship unloaders. The method comprises: if the control system receives a replacement instruction, it enters a replacement mode to wait for the replacement of the pull rope; if the control system receives a reset signal sent by a control device, it confirms that the pull rope replacement is completed, and sends a data reset signal to the frequency converter; the frequency converter activates the preset self-guided tracking parameter according to the data reset signal, and sets its own operating parameters according to the parameter value corresponding to the preset self-guided tracking parameter to obtain an initial operating value, wherein the initial operating value includes an initial position value; the encoder reads the initial position value in the frequency converter, and sets the actual position value corresponding to the grab bucket to the initial position value. The present application can avoid encoder data overflow, so that the grab bucket can be opened and closed normally, and ensure that the ship unloader can operate normally after the pull rope is replaced.

Description

Technical Field

[0001] The present invention relates to the technical field of ship unloaders, and in particular to a data processing method, an electric control system and a medium applied to an electric control system of a ship unloader. Background Art

[0002] Bridge grab ship unloaders are widely used in inland rivers and coastal docks, mainly for unloading bulk materials. When the pull rope of the ship unloader reaches the safety limit, it must be replaced partially or completely. However, since the ship unloader uses a differential reducer, the length of the pull rope is controlled by the grab bucket encoder, and the grab bucket cam limit is also provided for safety protection. After the pull rope is replaced, it is easy to cause encoder data overflow and cam limit changes; cam limit changes will cause the single drum mode to be unable to proceed, thereby interrupting the pull rope replacement operation; encoder data overflow will cause the grab bucket to be unable to open and close normally, making the ship unloader unable to operate normally and safely, and it is necessary to wait for electrical technicians to perform maintenance before continuing normal operation, which seriously affects the operation efficiency. Summary of the invention

[0003] The embodiment of the present invention provides a data processing method, an electric control system and a medium applied to an electric control system of a ship unloader, aiming to solve the problem that encoder data overflow is easily caused after the existing pull rope is replaced, so that the ship unloader cannot operate normally and safely.

[0004] In a first aspect, an embodiment of the present invention provides a data processing method applied to an electronic control system of a ship unloader, wherein the ship unloader includes a grab bucket and a pull rope for pulling the grab bucket, and the electronic control system includes a control system, a frequency converter, an encoder, and a control device, and the method includes:

[0005] If the control system receives a replacement instruction, it enters a replacement mode to wait for the pull rope to be replaced;

[0006] If the control system receives the reset signal sent by the control device, it confirms that the pull rope replacement is completed and sends a data reset signal to the frequency converter;

[0007] The frequency converter activates the preset homing tracking parameter according to the data clearing signal, and sets its own operating parameter according to the parameter value corresponding to the preset homing tracking parameter to obtain an initial operating value, wherein the initial operating value includes an initial position value;

[0008] The encoder reads the initial position value in the frequency converter and sets the actual position value corresponding to the grab bucket as the initial position value.

[0009] In a second aspect, an embodiment of the present invention further provides an electronic control system for a ship unloader, the electronic control system comprising a control system, a frequency converter, an encoder and a control device, which comprises a receiving waiting unit and a receiving and sending unit configured in the control system, an activation setting unit configured in the frequency converter and a reading setting unit configured in the encoder, wherein:

[0010] The receiving waiting unit is used for the control system to enter a replacement mode to wait for the replacement of the pull rope if the control system receives a replacement instruction;

[0011] The receiving and sending unit is used for the control system to confirm that the replacement of the pull rope is completed and send a data clearing signal to the frequency converter if the control system receives a clearing signal sent by the control device;

[0012] The activation setting unit is used for the frequency converter to activate the preset self-guided tracking parameters according to the data clearing signal, and to set its own operating parameters according to the parameter values ​​corresponding to the preset self-guided tracking parameters to obtain initial operating values, wherein the initial operating values ​​include initial position values;

[0013] The reading and setting unit is used for the encoder to read the initial position value in the frequency converter, and set the actual position value corresponding to the grab bucket as the initial position value.

[0014] In the third aspect, an embodiment of the present invention further provides an electronic control system for a ship unloader, which includes a control system, a frequency converter, an encoder and a control device, wherein the control system, the frequency converter, the encoder and the control device all include a memory and a processor, a computer program is stored in the memory, and the control system, the frequency converter, the encoder and the processor of the control device jointly implement the above method when executing their respective computer programs.

[0015] In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, wherein the storage medium stores a computer program, and the computer program can implement the above method when executed by multiple processors.

[0016] The embodiment of the present invention provides a data processing method, an electric control system and a medium applied to the electric control system of a ship unloader. The method includes: if the control system receives a replacement instruction, it enters a replacement mode to wait for the replacement of the pull rope; if the control system receives a reset signal sent by the control device, it confirms that the replacement of the pull rope is completed and sends a data reset signal to the frequency converter; the frequency converter activates the preset self-guided tracking parameters according to the data reset signal, and sets its own operating parameters according to the parameter values ​​corresponding to the preset self-guided tracking parameters to obtain initial operating values, wherein the initial operating values ​​include initial position values; the encoder reads the initial position value in the frequency converter, and sets the actual position value corresponding to the grab bucket to the initial position value. The technical solution of the embodiment of the present invention sends a data clearing signal to the frequency converter after confirming that the pull rope has been replaced through the control system, so that the frequency converter sets its own operating parameters according to the data clearing signal to obtain the initial operating value, and the encoder reads the initial position value in the initial operating value of the frequency converter, and sets the actual position value corresponding to the grab bucket as the initial position value, which can avoid encoder data overflow, so that the grab bucket can be opened and closed normally, and ensure that the ship unloader can operate normally after the pull rope is replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0018] Figure 1 A schematic diagram of a scenario of an electric control system for a ship unloader provided by an embodiment of the present invention;

[0019] Figure 2 A flow chart of a data processing method applied to an electronic control system of a ship unloader provided by an embodiment of the present invention;

[0020] Figure 3 A schematic diagram of a sub-flow chart of a data processing method applied to an electronic control system of a ship unloader provided by an embodiment of the present invention;

[0021] Figure 4 A schematic diagram of the definition of parameters and parameter values ​​in a data processing method applied to an electronic control system of a ship unloader provided by an embodiment of the present invention;

[0022] Figure 5 A flow chart of a data processing method applied to an electronic control system of a ship unloader provided by another embodiment of the present invention;

[0023] Figure 6A flow chart of a data processing method applied to an electronic control system of a ship unloader provided by another embodiment of the present invention;

[0024] Figure 7 A schematic block diagram of an electric control system for a ship unloader provided in an embodiment of the present invention;

[0025] Figure 8 A schematic block diagram of a computer device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0028] It should also be understood that the terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0029] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0030] As used in this specification and the appended claims, the term "if" may be interpreted as "when" or "upon" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrases "if it is determined" or "if [described condition or event] is detected" may be interpreted as meaning "upon determination" or "in response to determining" or "upon detection of [described condition or event]" or "in response to detecting [described condition or event]," depending on the context.

[0031] See also Figure 1 , Figure 1: is a scene schematic diagram of the ship unloader electronic control system provided in an embodiment of the present invention. The ship unloader electronic control system includes a control system, a frequency converter, an encoder and a control device. In this embodiment, the control system communicates with the control device to receive a reset signal sent by the control device; the frequency converter communicates with the control system to receive a data reset signal sent by the control system; the encoder communicates with the frequency converter to read the initial position value in the frequency converter. It can be understood that the ship unloader includes a grab and a pull rope for pulling the grab. It should be noted that, in an embodiment of the present invention, the control system is a PLC control system; the frequency converter includes a first frequency converter, a second frequency converter and a third frequency converter, and the first frequency converter, the second frequency converter and the third frequency converter are a lifting frequency converter, an opening and closing frequency converter and a trolley frequency converter respectively; the control device includes a first control device and a second control device, and the first control device and the second control device are a machine room and a driver's room respectively. It should also be noted that, in this embodiment, after the control system confirms that the replacement of the pull rope is completed, it sends a data clearing signal to the frequency converter, so that the frequency converter sets its own operating parameters according to the data clearing signal to obtain the initial operating value, and the encoder reads the initial position value in the initial operating value of the frequency converter, and sets the actual position value corresponding to the grab bucket as the initial position value, which can avoid encoder data overflow, so that the grab bucket can be opened and closed normally and the operating speed is normal, ensuring that the ship unloader can operate normally after the pull rope is replaced.

[0032] Figure 2 FIG. 1 is a flow chart of a data processing method for an electronic control system of a ship unloader provided by an embodiment of the present invention. Figure 2 As shown, the method includes the following steps S100-S130.

[0033] S100: If the control system receives a replacement instruction, it enters a replacement mode to wait for the pull rope to be replaced.

[0034] In an embodiment of the present invention, if an operator presses a control button in the machine room or the driver's cab and selects a replacement mode, the control system will receive a replacement instruction sent from the machine room, and the control system will enter a replacement mode according to the replacement instruction to wait for the operator to replace the pull rope, wherein the pull rope is a steel wire rope.

[0035] S110: If the control system receives a reset signal sent by the control device, it confirms that the pull rope replacement is completed and sends a data reset signal to the frequency converter.

[0036] In an embodiment of the present invention, after the operator replaces the pull rope, if he presses the reset button in the machine room or the driver's room, the sending of the first reset signal or the second reset signal will be triggered. If the control system receives the first reset signal / the second reset signal sent by the first control device / the second control device, it confirms that the pull rope has been replaced, and connects an output point in its own PLC digital output module to the relay in the electric control system, and the relay is energized to close the normally open contacts corresponding to the relay in the first frequency converter, the second frequency converter and the third frequency converter, and the control system sends the data reset signal to the first frequency converter, the second frequency converter and the third frequency converter. It can be understood that after the normally open contacts in the first frequency converter, the second frequency converter and the third frequency converter are closed, the lifting frequency converter, the opening and closing frequency converter and the trolley frequency converter are connected to the control system and the control device.

[0037] S120, the frequency converter activates the preset self-guided tracking parameters according to the data clearing signal, and sets its own operating parameters according to the parameter values ​​corresponding to the preset self-guided tracking parameters to obtain initial operating values, wherein the initial operating values ​​include initial position values.

[0038] In the embodiment of the present invention, the initial operation value also includes an initial speed value; the operation parameter includes an operation speed and an operation position; the preset homing tracking parameter includes a tracking command parameter and a response input parameter; the inverter activates the preset homing tracking parameter according to the data clear signal, and step S120 is as follows: Figure 3 As shown, it may specifically include steps S121-S122: S121, the frequency converter activates the tracking command parameter according to the data clear signal, and sets the operating speed of itself according to the parameter value corresponding to the tracking command parameter to obtain the initial speed value; S122, the frequency converter activates the response input parameter according to the data clear signal, and sets the operating position of itself according to the parameter value corresponding to the response input parameter to obtain the initial position value.

[0039] Furthermore, the tracking command parameters include tracking activation parameters and tracking speed parameters. Step S121 specifically includes the inverter activating the tracking activation parameters according to the data clear signal, and deriving the tracking speed parameters according to the parameter value corresponding to the tracking activation parameters; the inverter sets its own operating speed according to the parameter value corresponding to the tracking speed parameter to obtain the initial speed value. In practical applications, Figure 4As shown, the tracking activation parameter and the tracking speed parameter are "10.21" and "11.14" respectively. The parameter value corresponding to the tracking activation parameter "10.21" is "001.017.02", which is used to define the homing tracking command source; the parameter value corresponding to the tracking speed parameter "11.14" is "00r / m", which is used to define the homing tracking operation speed. That is, through the functions corresponding to the two parameters "10.21" and "11.14", the operating speed of the frequency converter can be set to "00r / m". It can be understood that the initial speed value is 0r / m. It should be noted that in this embodiment, by initializing the operating speed of the frequency converter, the grab speed can be initialized, thereby setting the rope pulling speed to the zero speed.

[0040] Furthermore, the response input parameter includes an input response parameter, a tracking response parameter and a tracking position parameter. Step S122 is specifically that the inverter activates the input response parameter according to the data clear signal, and determines the tracking response parameter according to the parameter value corresponding to the input response parameter; the inverter self-guides to the tracking position parameter according to the parameter value corresponding to the tracking response parameter, and sets its own operating position according to the parameter value corresponding to the tracking position parameter to obtain the initial position value. In practical applications, if Figure 4 As shown, the input response parameter, tracking response parameter and tracking position parameter are "10.15", "10.22" and "78.10" respectively. The parameter value corresponding to the input response parameter "10.15" is "10.22", which is used to define the self-guided tracking response information source; the tracking response parameter "10.22" is "001.017.02", which is used to define the self-guided tracking response source; the tracking position parameter "78.10" is "00m", which is used to define the self-guided tracking initialization value. That is, through the functions corresponding to the parameters "10.15", "10.22" and "78.10", the operating position of the inverter can be set to "00m".

[0041] S130. The encoder reads the initial position value in the frequency converter, and sets the actual position value corresponding to the grab bucket as the initial position value.

[0042] In the embodiment of the present invention, the encoder reads the initial position value "00m" in the frequency converter, and sets the actual position value corresponding to the grab bucket to "00m". It should be noted that in this embodiment, the actual position value corresponding to the grab bucket in the encoder is set to "00m" because it is assumed that the dock platform is the zero point of the pull rope position, the grab bucket is positive when it is upward and negative when it is downward. After the pull rope is replaced, the pull rope can be reset to zero through the zeroing operation of the encoder to avoid overflow or underflow of the encoder data. In actual applications, the parameter corresponding to the actual position value corresponding to the grab bucket in the encoder is "02.21"; the data range of the encoder is between -32767 and 32767. It can be understood that the encoder data does not overflow, so that the grab bucket can be opened and closed normally, ensuring that the ship unloader can operate normally after the pull rope is replaced, thereby improving the operating efficiency.

[0043] Figure 5 A flow chart of a data processing method for an electronic control system of a ship unloader provided by another embodiment of the present invention is shown as follows: Figure 5 As shown, in this embodiment, the data processing method applied to the ship unloader electronic control system of this embodiment includes steps S200-S250. Steps S200-S230 are similar to steps S100-S130 in the above embodiment, and are not repeated here. The following is a detailed description of steps S240 and S250 added in this embodiment.

[0044] S240: If the control device receives the first tightening instruction, it confirms that the opened grab has been placed at a preset position on the dock plane, and controls the tightening of the pull rope;

[0045] S250: If the control device receives a transmission release instruction, it confirms that the gear on the cam limit box and the gear of the reducer are released from transmission.

[0046] In the embodiment of the present invention, after the control system enters the replacement mode according to the replacement instruction, if the control device receives the first tightening instruction, it confirms that the grab bucket after opening has been placed at the preset position on the dock plane, and controls the tightening of the pull rope, wherein the preset position is a position on the dock plane suitable for replacing the pull rope; if the control device receives the transmission release instruction, it confirms that the gear on the cam limit box and the gear of the reducer are released from transmission. It should be noted that the reason why the transmission between the gear on the cam limit box and the gear of the reducer is released before the pull rope is replaced and after the pull rope is tightened is to avoid the cam limit box from being disordered during the pull rope replacement process, so that the pull rope replacement operation can be carried out smoothly and the operation efficiency is improved.

[0047] Figure 6A flow chart of a data processing method for an electronic control system of a ship unloader provided by another embodiment of the present invention is shown as follows: Figure 6 As shown, in this embodiment, the data processing method applied to the ship unloader electronic control system of this embodiment includes steps S300-S370. Steps S300-S350 are similar to steps S200-S250 in the above embodiment, and are not repeated here. The following is a detailed description of steps S360 and S370 added in this embodiment.

[0048] S360: If the control device receives a second tightening instruction, it confirms that the grab bucket after the pull rope is replaced is placed in the preset position in an open state, and controls the tightening of the replaced pull rope;

[0049] S370: If the control device receives a transmission resumption instruction, it confirms that the gear on the cam limit box and the gear of the reducer resume transmission.

[0050] In the embodiment of the present invention, after the pull rope is replaced, the operator controls the control device, and the control device receives a second tightening instruction, and confirms that the grab bucket after the pull rope is replaced is placed in the preset position in an open state, and controls the tightening of the replaced pull rope; after the transmission between the gear on the cam limit box and the gear of the reducer is restored, the operator controls the control device, and the control device receives a transmission recovery instruction, and confirms that the gear on the cam limit box and the gear of the reducer are restored. It can be understood that by modifying the cam limit box into a form that is easy to disassemble and install, it can be avoided that the cam limit box is sent in disorder, which affects the replacement of the pull rope, thereby improving the work efficiency.

[0051] For ease of understanding, the specific operating steps of the cam limit box and encoder during the pull rope replacement process are introduced as follows:

[0052] (1) The operator opens the grab and places it on the dock surface at a suitable position for changing the pull rope, and tightens the lifting and opening and closing pull ropes;

[0053] (2) The operator opens the bolts of the lifting and closing cam switch box, loosens the meshing contact between the small gear of the opening and closing cam limit box and the gear of the reducer to release the transmission;

[0054] (3) Press the control button in the machine room and select the replacement mode to start the rope replacement work;

[0055] (4) After the rope is replaced, tighten the lifting and opening and closing ropes in the machinery room and place the grab in an open state on the dock surface (in the same state and position as before the replacement);

[0056] (5) Restore the meshing between the pinion of the lifting and opening and closing cam limit box and the gear of the reducer, and tighten the bolts of the lifting and opening and closing cam switch box;

[0057] (6) The operator presses the "zero reset button" in the machine room or in the driver's cab to complete the automatic zero reset operation of the encoder;

[0058] (7) The operator initializes the grab and uses the grab to perform operations.

[0059] From the above, it can be seen that by standardizing the specific disassembly process of the cam limit box before and after the pull rope is replaced, the pull rope of the ship unloader is in the same state and position before and after the replacement, avoiding the limit disorder of the cam limit box. By clearing the encoder after the pull rope is replaced, the overflow of the encoder data can be avoided when the pull rope is long, so that the grab can be opened and closed normally, ensuring that the ship unloader can operate normally after the pull rope is replaced.

[0060] Figure 7 FIG. 2 is a schematic block diagram of an electric control system 200 for a ship unloader provided by an embodiment of the present invention. Figure 7 As shown, the data processing method applied to the ship unloader electronic control system corresponds to the data processing method applied to the control system, frequency converter, encoder and control device above. The ship unloader electronic control system 200 includes a unit for executing the data processing method applied to the ship unloader electronic control system above. Specifically, please refer to Figure 7 The ship unloader electronic control system 200 includes a receiving waiting unit 101 and a receiving and sending unit 102 configured in the control system, an activation setting unit 201 configured in the frequency converter, and a reading setting unit 301 configured in the encoder.

[0061] Among them, the receiving and waiting unit 101 is used for the control system to enter the replacement mode to wait for the replacement of the pull rope if it receives a replacement instruction; the receiving and sending unit 102 is used for the control system to confirm that the replacement of the pull rope is completed and send a data clearing signal to the frequency converter if it receives a clearing signal sent by the control device; the activation setting unit 201 is used for the frequency converter to activate the preset self-guided tracking parameters according to the data clearing signal, and set its own operating parameters according to the parameter values ​​corresponding to the preset self-guided tracking parameters to obtain initial operating values, wherein the initial operating values ​​include initial position values; the reading and setting unit 301 is used for the encoder to read the initial position value in the frequency converter, and set the actual position value corresponding to the grab as the initial position value.

[0062] In some embodiments, such as this embodiment, the activation setting unit 201 includes a first activation setting subunit and a second activation setting subunit.

[0063] Among them, the first activation setting subunit is used for the frequency converter to activate the tracking command parameter according to the data clear signal, and set its own operating speed according to the parameter value corresponding to the tracking command parameter to obtain the initial speed value; the second activation setting subunit is used for the frequency converter to activate the response input parameter according to the data clear signal, and set its own operating position according to the parameter value corresponding to the response input parameter to obtain the initial position value.

[0064] In some embodiments, such as the present embodiment, the first activation setting subunit includes a first activation unit and a first setting unit.

[0065] Among them, the first activation unit is used for the frequency converter to activate the tracking activation parameter according to the data clear signal, and to derive the tracking speed parameter according to the parameter value corresponding to the tracking activation parameter; the first setting unit is used for the frequency converter to set its own operating speed according to the parameter value corresponding to the tracking speed parameter to obtain the initial speed value.

[0066] In some embodiments, such as the present embodiment, the second activation setting subunit includes a second activation unit and a second setting unit.

[0067] Among them, the second activation unit is used for the frequency converter to activate the input response parameter according to the data clear signal, and determine the tracking response parameter according to the parameter value corresponding to the input response parameter; the second setting unit is used for the frequency converter to self-guide to the tracking position parameter according to the parameter value corresponding to the tracking response parameter, and set its own operating position according to the parameter value corresponding to the tracking position parameter to obtain the initial position value.

[0068] In some embodiments, such as this embodiment, the receiving and sending unit 102 includes an access unit and a sending unit.

[0069] Among them, if the access unit is used for the control system to receive the first reset signal / second reset signal sent by the first control device / second control device, it confirms that the pull rope replacement is completed, and connects its own PLC digital output module to the relay in the electric control system to close the normally open contacts corresponding to the relay in the first inverter, the second inverter and the third inverter; the sending unit is used for the control system to send the data reset signal to the first inverter, the second inverter and the third inverter.

[0070] In some embodiments, such as another embodiment, the ship unloader electronic control system 200 further includes a first receiving control unit, a first receiving confirmation unit, a second receiving control unit and a second receiving confirmation unit configured in the control device.

[0071] Wherein, the first receiving and controlling unit is used for confirming that the grab bucket after opening has been placed at the preset position on the dock plane and controlling the tightening of the pull rope if the control device receives a first tightening instruction; the first receiving and confirming unit is used for confirming that the gear on the cam limit box and the gear of the reducer are released from transmission if the control device receives a transmission release instruction; the second receiving and controlling unit is used for confirming that the grab bucket after replacing the pull rope is placed at the preset position in an open state and controlling the tightening of the replaced pull rope if the control device receives a second tightening instruction; the second receiving and confirming unit is used for confirming that the gear on the cam limit box and the gear of the reducer are resumed from transmission if the control device receives a transmission resumption instruction.

[0072] The above-mentioned ship unloader electronic control system can be realized in the form of a computer program. The computer program can be used in Figure 8 Runs on the computer device shown.

[0073] See also Figure 8 , Figure 8 900 is a schematic block diagram of a computer device provided in an embodiment of the present application. The computer device 900 may be the above-mentioned control system, frequency converter, encoder and control device.

[0074] See also Figure 8 The computer device 900 includes a processor 902 , a memory and an interface 907 connected via a system bus 901 , wherein the memory may include a non-volatile storage medium 903 and an internal memory 904 .

[0075] The non-volatile storage medium 903 can store an operating system 9031 and a computer program 9032. When the computer program 9032 is executed, the processor 902 can execute a data processing method applied to an electronic control system of a ship unloader.

[0076] The processor 902 is used to provide computing and control capabilities to support the operation of the entire computer device 900 .

[0077] The internal memory 904 provides an environment for the execution of the computer program 9032 in the non-volatile storage medium 903 .

[0078] The interface 905 is used to communicate with other devices. Those skilled in the art will appreciate that Figure 8The structure shown in the figure is merely a block diagram of a partial structure related to the solution of the present application, and does not constitute a limitation on the computer device 900 to which the solution of the present application is applied. The specific computer device 900 may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0079] Among them, the respective processors 902 in the control system, frequency converter, encoder and control device are used to run the computer program 9032 stored in the respective memories. When the computer program 3032 is executed, the processor 902 can execute a data processing method applied to the electronic control system of the ship unloader.

[0080] It should be understood that in the embodiment of the present application, the processor 902 may be a central processing unit (CPU), and the processor 902 may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0081] It is understood by those skilled in the art that all or part of the processes in the method for implementing the above embodiment can be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a storage medium, which is a computer-readable storage medium. The computer program is executed by at least one processor in the computer system to implement the process steps of the embodiment of the above method.

[0082] Therefore, the present invention also provides a storage medium. The storage medium may be a computer-readable storage medium. The storage medium stores a computer program. When the computer program is executed by a processor, the processor executes any embodiment of the data processing method applied to the electronic control system of a ship unloader.

[0083] The storage medium may be a USB flash drive, a mobile hard disk, a read-only memory (ROM), a magnetic disk, or an optical disk, etc., which are computer-readable storage media that can store program codes.

[0084] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0085] In the several embodiments provided by the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of each unit is only a logical function division, and there may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.

[0086] The steps in the method of the embodiment of the present invention can be adjusted in order, combined and deleted according to actual needs. The units in the device of the embodiment of the present invention can be combined, divided and deleted according to actual needs. In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0087] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, terminal, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention.

[0088] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0089] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0090] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A data processing method applied to an electronic control system of a ship unloader, wherein the ship unloader comprises a grab bucket and a pull rope for pulling the grab bucket, and the electronic control system comprises a control system, a frequency converter, an encoder and a control device, wherein: include: If the control system receives a replacement instruction, it enters a replacement mode to wait for the pull rope to be replaced; If the control system receives the reset signal sent by the control device, it confirms that the pull rope replacement is completed and sends a data reset signal to the frequency converter; The frequency converter activates the preset homing tracking parameter according to the data clearing signal, and sets its own operating parameter according to the parameter value corresponding to the preset homing tracking parameter to obtain an initial operating value, wherein the initial operating value includes an initial position value; The encoder reads the initial position value in the frequency converter and sets the actual position value corresponding to the grab bucket as the initial position value; The ship unloader further includes a cam limit box and a reducer. If the control system receives a reset signal sent by the control device, it confirms that the pull rope is replaced and sends a data reset signal to the frequency converter, and before that, it also includes: If the control device receives the first tightening instruction, it confirms that the opened grab has been placed at a preset position on the dock plane, and controls the tightening of the pull rope; If the control device receives the transmission release instruction, it confirms that the gear on the cam limit box and the gear of the reducer are released from transmission.

2. The data processing method applied to the electronic control system of a ship unloader according to claim 1 is characterized in that: The initial operation value also includes an initial speed value; the operation parameters include an operation speed and an operation position; the preset homing tracking parameters include a tracking command parameter and a response input parameter; the frequency converter activates the preset homing tracking parameters according to the data clear signal, and sets its own operation parameters according to the parameter values ​​corresponding to the preset homing tracking parameters to obtain the initial operation value, including: The frequency converter activates the tracking command parameter according to the data clearing signal, and sets its own running speed according to the parameter value corresponding to the tracking command parameter to obtain the initial speed value; The frequency converter activates the response input parameter according to the data clearing signal, and sets its own operating position according to the parameter value corresponding to the response input parameter to obtain the initial position value.

3. The data processing method applied to the electronic control system of a ship unloader according to claim 2 is characterized in that: The tracking command parameters include tracking activation parameters and tracking speed parameters; the frequency converter activates the tracking command parameters according to the data clear signal, and sets its own running speed according to the parameter value corresponding to the tracking command parameters to obtain the initial speed value, including: The frequency converter activates the tracking activation parameter according to the data clearing signal, and self-directs to the tracking speed parameter according to the parameter value corresponding to the tracking activation parameter; The frequency converter sets its own operating speed according to the parameter value corresponding to the tracking speed parameter to obtain the initial speed value.

4. The method according to claim 2, characterized in that: The response input parameters include input response parameters, tracking response parameters and tracking position parameters; the frequency converter activates the response input parameters according to the data clear signal, and sets its own operating position to obtain the initial position value according to the parameter value corresponding to the response input parameter, including: The frequency converter activates the input response parameter according to the data clear signal, and determines the tracking response parameter according to the parameter value corresponding to the input response parameter; The frequency converter derives the tracking position parameter according to the parameter value corresponding to the tracking response parameter, and sets its own operating position according to the parameter value corresponding to the tracking position parameter to obtain the initial position value.

5. The method according to claim 1, characterized in that If the control system receives the reset signal sent by the control device, the step of confirming that the pull rope replacement is completed and sending a data reset signal to the frequency converter includes: If the control system receives the first clear signal / second clear signal sent by the first control device / second control device, it confirms that the pull rope is replaced, and connects its own PLC digital output module to the relay in the electric control system, so that the normally open contacts corresponding to the relay in the first frequency converter, the second frequency converter and the third frequency converter are closed; The control system sends the data clearing signal to the first frequency converter, the second frequency converter, and the third frequency converter.

6. The method according to claim 1, characterized in that If the control device receives the transmission release instruction, after confirming that the gear on the cam limit box and the gear of the reducer are released from transmission, the control device further includes: If the control device receives the second tightening instruction, it confirms that the grab bucket after the pull rope is replaced is placed in the preset position in an open state, and controls the tightening of the replaced pull rope; If the control device receives the transmission resumption instruction, it confirms that the gear on the cam limit box and the gear of the reducer resume transmission.

7. An electric control system for a ship unloader, the ship unloader comprising a grab bucket and a pull rope for pulling the grab bucket, the electric control system comprising a control system, a frequency converter, an encoder and a control device, characterized in that: include: A receiving waiting unit and a receiving and sending unit configured in the control system, an activation setting unit configured in the frequency converter, and a reading setting unit configured in the encoder, wherein: The receiving waiting unit is used for the control system to enter a replacement mode to wait for the replacement of the pull rope if the control system receives a replacement instruction; The receiving and sending unit is used for the control system to confirm that the replacement of the pull rope is completed and send a data clearing signal to the frequency converter if the control system receives the clearing signal sent by the control device; The activation setting unit is used for the frequency converter to activate the preset self-guided tracking parameters according to the data clearing signal, and to set its own operating parameters according to the parameter values ​​corresponding to the preset self-guided tracking parameters to obtain initial operating values, wherein the initial operating values ​​include initial position values; The reading and setting unit is used for the encoder to read the initial position value in the frequency converter and set the actual position value corresponding to the grab bucket as the initial position value; The ship unloader further includes a cam limit box and a reducer, and before the receiving and sending unit, also includes: A first receiving control unit, for confirming that the grab bucket after opening has been placed at a preset position on the dock plane and controlling the tightening of the pull rope if the control device receives a first tightening instruction; The first receiving confirmation unit is used to confirm that the gear on the cam limit box and the gear of the reducer are released from transmission if the control device receives a transmission release instruction.

8. An electronic control system for a ship unloader, characterized in that: It includes a control system, a frequency converter, an encoder and a control device, and the control system, the frequency converter, the encoder and the control device all include a memory and a processor, and a computer program is stored in the memory. When the control system, the frequency converter, the encoder and the processor of the control device execute their respective computer programs, they jointly implement the method as described in any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that: The storage medium stores a computer program, and when the computer program is executed by a plurality of processors, the method according to any one of claims 1 to 6 can be implemented.

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