Cluster deviation rectification control system and machining device

Abstract

The utility model relates to the technical field of deviation rectification control systems, and provides a cluster deviation rectification control system and a processing device, the system comprises an acquisition module comprising a plurality of sensor nodes; the control module comprises a plurality of deviation rectification controllers, and each deviation rectification controller is connected with a plurality of sensor nodes through a CAN bus; the relay module comprises a plurality of repeaters, and each repeater is connected with a plurality of deviation rectification controllers through a CAN bus in the downlink; a master station, wherein each repeater is connected with the master station in the uplink; and the execution module comprises a plurality of actuator nodes, and each correction controller is connected with the plurality of actuator nodes through the CAN bus. The relay and the deviation rectification controller, the deviation rectification controller and the sensor node, and the deviation rectification controller and the actuator node are connected through the CAN bus, cluster control of hundreds of deviation rectification controllers can be realized and simplified, and the system has the advantages of good processing capability, good expandability, fast speed response, good real-time performance and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of deviation rectification control systems, in particular to a cluster deviation rectification control system and a processing device. Background Technique

[0002] Deviation rectification control refers to the timely deviation rectification operation on the offset coil during the process of processing the coil. All the equipment in the deviation rectification control process constitutes a deviation rectification control system, which is mainly applied to industries such as corrugated paper, textile, printing, wire and cable, etc.

[0003] Most of the existing deviation rectification control systems operate based on a single-machine mode, and a few operate based on a cluster mode. Among them, the deviation rectification control system operating based on the single-machine mode forms a self-closed control or communicates with devices such as PLC through IO ports, and its processing ability is relatively limited and the scalability is poor; although the deviation rectification control system operating based on the cluster mode has strong processing ability and good scalability, it performs poorly in terms of speed response and real-time performance, which is particularly obvious when the number of deviation rectification controllers is large.

[0004] For example, the cluster deviation rectification control system based on the MODBUS-RTU protocol RS485 networks multiple deviation rectification controllers to achieve multi-machine control. However, the communication of this deviation rectification system is based on the master-slave mode and uses the polling method to access all the on-network deviation rectification controllers, which will cause a large delay in data interaction and slow speed response. In addition, as long as one deviation rectification controller has a communication failure, it may cause the network to fail, so this deviation rectification control system is prone to communication paralysis when facing complex and changeable working conditions, greatly affecting the real-time performance. Content of the Utility Model

[0005] Therefore, the technical problem to be solved by the utility model is to overcome the problems that the deviation rectification control system operating based on the single-machine mode in the prior art has limited processing ability and poor scalability, while the deviation rectification control system operating based on the cluster mode has slow speed response and poor real-time performance, and to provide a cluster deviation rectification control system and a processing device, which have the advantages of good processing ability, good scalability, fast speed response and good real-time performance.

[0006] In the first aspect, to solve the above technical problem, the utility model provides a cluster deviation rectification control system, including:

[0007] An acquisition module, including multiple sensor nodes;

[0008] A control module, including multiple deviation rectification controllers; each of the deviation rectification controllers is connected to the multiple sensor nodes through a CAN bus;

[0009] The relay module includes multiple repeaters; each of the repeaters is connected to multiple of the deviation rectification controllers via the CAN bus in the downlink;

[0010] The master station, each of the repeaters is connected to the master station in the uplink;

[0011] The execution module includes multiple actuator nodes; each of the deviation rectification controllers is connected to multiple of the actuator nodes via the CAN bus.

[0012] In an embodiment of the present invention, the sensor node includes a position detection unit, a data preprocessing unit, and a first data communication unit; the position detection unit is connected to the data preprocessing unit, the data preprocessing unit is connected to the first data communication unit, and the first data communication unit is connected to the deviation rectification controller.

[0013] In an embodiment of the present invention, the deviation rectification controller includes a data storage unit, and the data storage unit is connected to the sensor node.

[0014] In an embodiment of the present invention, each of the repeaters is connected to the master station via Ethernet or an ETHERCAT network in the uplink.

[0015] In an embodiment of the present invention, the repeater includes a data parsing unit, a security authentication unit, and a second data communication unit; the master station is connected to the data parsing unit, the data parsing unit is connected to the security authentication unit, the security authentication unit is connected to the second data communication unit, and the second data communication unit is connected to the deviation rectification controller.

[0016] In an embodiment of the present invention, the sensor node is an ultrasonic sensor, an infrared sensor, or a CCD sensor.

[0017] In an embodiment of the present invention, the master station is a PC or a PLC.

[0018] In an embodiment of the present invention, the actuator node is a servo driver or an electric linear actuator.

[0019] In a second aspect, to solve the above technical problems, the present invention also provides a processing device including the above-mentioned cluster deviation rectification control system.

[0020] In an embodiment of the present invention, the above-mentioned processing device is a non-woven fabric processing device.

[0021] The above technical solutions of the present invention have at least the following advantages compared with the prior art:

[0022] A cluster deviation correction control system and a processing device according to the present utility model. Each repeater is connected to a plurality of deviation correction controllers through a CAN bus, and each deviation correction controller is connected to a plurality of sensor nodes and a plurality of actuator nodes through a CAN bus, which can achieve and simplify the cluster control of up to hundreds of deviation correction controllers, and has the advantages of good processing ability, good scalability, fast speed response and good real-time performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to make the content of the present utility model easier to be clearly understood, the present utility model will be further described in detail below according to the specific embodiments of the present utility model in conjunction with the drawings.

[0024] Figure 1 It is a module diagram of a cluster deviation correction control system in an embodiment of the present utility model;

[0025] Figure 2 It is a network structure topology diagram of a cluster deviation correction control system in an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The present utility model will be further described below in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the embodiments given are not intended to limit the present utility model.

[0027] In the present application, unless otherwise clearly specified and limited, terms such as "connection" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0028] In addition, in the present application, descriptions such as "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features.

[0029] Most of the existing deviation correction control systems operate based on a single machine mode, and a few operate based on a cluster mode. Among them, the deviation correction control system operating based on the single machine mode forms a self-closed control or communicates with devices such as PLC through IO ports, and its processing ability is relatively limited and its scalability is poor; although the deviation correction control system operating based on the cluster mode has strong processing ability and good scalability, it performs poorly in terms of speed response and real-time performance, which is particularly obvious when the number of deviation correction controllers is large.

[0030] Therefore, the embodiments of the present application provide a cluster deviation correction control system and a processing device.

[0031] Example 1

[0032] This embodiment provides a cluster deviation correction control system. Please refer to Figure 1 as shown, including:

[0033] A collection module, including multiple sensor nodes;

[0034] A control module, including multiple deviation correction controllers; each of the deviation correction controllers is connected to multiple of the sensor nodes through a CAN bus;

[0035] A relay module, including multiple repeaters; each of the repeaters is connected to multiple of the deviation correction controllers through the CAN bus in the downlink;

[0036] A master station, each of the repeaters is connected to the master station in the uplink;

[0037] An execution module, including multiple actuator nodes; each of the deviation correction controllers is connected to multiple of the actuator nodes through the CAN bus.

[0038] For the cluster deviation correction control system provided in this embodiment, the repeaters are connected to the deviation correction controllers, the deviation correction controllers are connected to the sensor nodes, and the deviation correction controllers are connected to the actuator nodes through the CAN bus, which can realize and simplify the cluster control of up to hundreds of deviation correction controllers. While having good processing capacity and scalability, it has a fast response speed and good real-time performance. Even if one or several deviation correction controllers have communication failures, the system will not cause network failure.

[0039] Next, a detailed introduction to the cluster deviation correction control system described in this embodiment will be given:

[0040] I. Collection module

[0041] Optionally, the sensor node includes a position detection unit, a data preprocessing unit, and a first data communication unit; the position detection unit is connected to the data preprocessing unit, the data preprocessing unit is connected to the first data communication unit, and the first data communication unit is connected to the deviation correction controller.

[0042] Specifically, the position detection unit collects the real-time offset of the material and the real-time position information of the actuator node, the data preprocessing unit converts the real-time offset of the material and the real-time position information of the actuator node into a standard format packet, and the first data communication unit sends the standard format packet to the deviation correction controller through the CAN bus.

[0043] Specifically, the sensor node may be, but is not limited to, an ultrasonic sensor, an infrared sensor, or a Charge Coupled Device (CCD) sensor.

[0044] II. Control Module

[0045] Optionally, the deviation correction controller includes a data storage unit, and the data storage unit is connected to the sensor node.

[0046] Specifically, the data storage unit is connected to the first data communication unit, and the data storage unit stores the standard format packet to facilitate historical query of the real-time offset of the material and the real-time position information of the actuator node.

[0047] Furthermore, each data of the real-time offset of the material and the real-time position information of the actuator node has a timestamp to facilitate data tracking and playback.

[0048] Specifically, each deviation correction controller is assigned a unique hardware address.

[0049] III. Relay Module

[0050] Optionally, each repeater is connected to the master station through an Ethernet or ETHERCAT network in the upstream, and is connected to multiple deviation correction controllers through the CAN bus in the downstream.

[0051] Optionally, the repeater includes a data parsing unit, a security authentication unit, and a second data communication unit; the master station is connected to the data parsing unit, the data parsing unit is connected to the security authentication unit, the security authentication unit is connected to the second data communication unit, and the second data communication unit is connected to the deviation correction controller.

[0052] Specifically, the data parsing unit parses the data sent by the master station to determine the data packet distribution path and the data response mode; the security authentication unit uses the RSA asymmetric algorithm for identity confirmation; after the identity confirmation is passed, the second data communication unit packs and sends the parsed data to the specified deviation correction controller; if the identity confirmation fails, the data sent by the master station will be automatically discarded.

[0053] Specifically, the security authentication unit can prevent data from being tampered with and attacked by the external network to protect the security of industrial interconnected devices.

[0054] Specifically, the second data communication unit uses the hardware interrupt mode when receiving data to further ensure the real-time performance of the data.

[0055] IV. Master Station

[0056] Optionally, the master station is a PC or a PLC.

[0057] Specifically, the ways for the PC or the PLC to control the deviation rectification controller through the repeater include global control, local control, and individual control.

[0058] Specifically, the PC or the PLC configures working parameters and deviation rectification control algorithms through a human-machine interface.

[0059] Furthermore, the PC or the PLC can perform feature extraction on data according to the big data machine learning algorithm to optimize the deviation rectification control algorithm.

[0060] V. Execution Module

[0061] Specifically, the actuator node receives the instruction sent by the deviation rectification controller through the CAN bus to complete the deviation rectification action.

[0062] Specifically, the actuator node can be, but is not limited to, a servo driver or an electric linear actuator.

[0063] VI. Working Process

[0064] Taking the number of repeaters as N, the number of deviation rectification controllers as M, and each deviation rectification controller being connected to two sensor nodes and two actuator nodes through the CAN bus as an example, the working process of a cluster deviation rectification control system described in this embodiment is described as follows:

[0065] Specifically, please refer to Figure 2 As shown, sensor node 1 and sensor node 2 collect the real-time offset of the material and the real-time position information of actuator node 1 and actuator node 2;

[0066] Furthermore, sensor node 1 and sensor node 2 send the real-time offset and the real-time position information to deviation rectification controller 1 through the CAN bus;

[0067] Furthermore, deviation rectification controller 1 uploads the real-time offset, the real-time position information, and the current deviation rectification state to repeater 1 through the CAN bus;

[0068] Furthermore, repeater 1 sends the real-time offset, the real-time position information, and the current deviation rectification state of deviation rectification controller 1 to the master station;

[0069] Furthermore, the master station timely corrects the deviation data and performs closed-loop control on deviation rectification controller 1 through repeater 1;

[0070] Further, the deviation rectification controller 1 controls the actuator node 1 and the actuator node 2 to perform deviation rectification actions according to the control instruction of the master station, in combination with the real-time offset, the real-time position information, and the current deviation rectification state.

[0071] Further, Figure 2 The working processes of the deviation rectification controllers 2 to M and the repeaters 2 to N are similar by analogy.

[0072] It can be seen that Figure 2 A cluster deviation rectification control system shown can achieve cluster control of M * N deviation rectification controllers.

[0073] Embodiment 2

[0074] This embodiment provides a processing device, including a cluster deviation rectification control system as described in Embodiment 1.

[0075] Optionally, the processing device is a non-woven fabric processing device.

[0076] For a further introduction to the processing device provided in this embodiment, please refer to Embodiment 1, and this embodiment will not be elaborated here.

[0077] The processing device provided in this embodiment has the same beneficial effects as the above-mentioned cluster deviation rectification control system.

[0078] Obviously, the above embodiments are only examples for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A cluster deviation correction control system, characterized in that: include: A collection module, including multiple sensor nodes; A control module, comprising a plurality of deviation correction controllers; each of the deviation correction controllers is connected to a plurality of sensor nodes via a CAN bus; A relay module, comprising a plurality of repeaters; each of the repeaters is connected to a plurality of the deviation correction controllers via the CAN bus in the downlink; A master station, each of the repeaters being connected to the master station in the uplink; The execution module includes a plurality of actuator nodes; each of the deviation correction controllers is connected to the plurality of actuator nodes via the CAN bus.

2. A cluster deviation correction control system according to claim 1, characterized in that: The sensor node includes a position detection unit, a data preprocessing unit and a first data communication unit; the position detection unit is connected to the data preprocessing unit, the data preprocessing unit is connected to the first data communication unit, and the first data communication unit is connected to the deviation correction controller.

3. A cluster deviation correction control system according to claim 1, characterized in that: The deviation correction controller comprises a data storage unit, and the data storage unit is connected to the sensor node.

4. A cluster deviation correction control system according to claim 1, characterized in that: Each of the repeaters is connected to the master station via Ethernet or ETHERCAT network in the uplink.

5. The cluster deviation correction control system according to claim 1, characterized in that: The repeater includes a data parsing unit, a security authentication unit and a second data communication unit; the master station is connected to the data parsing unit, the data parsing unit is connected to the security authentication unit, the security authentication unit is connected to the second data communication unit, and the second data communication unit is connected to the correction controller.

6. The cluster deviation correction control system according to claim 1, characterized in that: The sensor node is an ultrasonic sensor, an infrared sensor or a CCD sensor.

7. The cluster deviation correction control system according to claim 1, characterized in that: The master station is a PC or a PLC.

8. The cluster deviation correction control system according to claim 1, characterized in that: The actuator node is a servo drive or an electric linear actuator.

9. A processing device, characterized in that: It comprises a cluster deviation correction control system as described in any one of claims 1 to 8.

10. A processing device according to claim 9, characterized in that: The processing device is a non-woven fabric processing device.

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