Force sensor data collection system and method based on EtherCAT

A data acquisition system and force sensor technology, applied in transmission systems, digital transmission systems, data exchange networks, etc., can solve the problems of high price, inability to connect to the Internet, and difficult to directly interface with the host controller.

Inactive Publication Date: 2016-05-18
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention is aimed at the problems existing in the existing methods: RS485 does not have a unified specification and communication protocol, and there are certain deficiencies in the communication method; and the CAN bus, as a communication network for industrial bottom control, also has certain limitations. It cannot be connected to the Internet, and it is not easy to directly interface with the host controller, and most of the existing CAN interface cards are expensive compared with Ethernet network cards. Therefore, a force sensor data acquisition system and method based on EtherCAT is provided.

Method used

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  • Force sensor data collection system and method based on EtherCAT
  • Force sensor data collection system and method based on EtherCAT
  • Force sensor data collection system and method based on EtherCAT

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specific Embodiment approach 1

[0034] Specific implementation mode one: combine Figure 1 to Figure 5 Describe this embodiment, a kind of force sensor data acquisition system based on EtherCAT of this embodiment, comprises:

[0035] PC master station and multiple slave stations supporting EtherCAT protocol;

[0036] Wherein, each of the slave stations is connected to a plurality of sensor devices;

[0037] Each of the slave stations is connected in series through the MII interface, and the whole connected in series is connected with the PC master station through the EtherCAT bus;

[0038] An Ethernet card supporting the EtherCAT protocol is installed on the PC master station, and the PC master station is connected to one of the slave stations through the Ethernet card.

[0039] The effect of this implementation mode:

[0040] The purpose of this embodiment is to provide an EtherCAT-based force sensor data acquisition system for the deficiencies of the prior art. An EtherCAT-based force sensor data acqui...

specific Embodiment approach 2

[0050] Embodiment 2: This embodiment differs from Embodiment 1 in that: the slave station encapsulates the information of the on-site sensor device and sends it to the PC master station, and the PC master station monitors the information of the slave station.

[0051] Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0052] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is that each slave station includes: EtherCAT communication subsystem and data acquisition subsystem;

[0053] Wherein, the EtherCAT communication subsystem realizes the EtherCAT data link layer and physical layer control on the one hand, processes the EtherCAT frame, and carries out data exchange with the EtherCAT master station; The control and data sending and receiving process of the application device;

[0054] Wherein, the data acquisition subsystem collects and processes the sensor data, and then transmits it to the EtherCAT communication subsystem.

[0055] Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

The invention relates to a force sensor data collection system and method based on EtherCAT. For the problems of existing methods that: an RS485 has no uniform standard and communication protocol, and the communication mode has certain defects; and a CAN bus also has certain limitation as a communication network facing industrial bottom control, fails to be connected with an Internet and is not liable to be directly connected with an upper controller, and most existing CAN interface cards are more expensive compared with Ethernet network card, the invention provides the force sensor data collection system and method based on EtherCAT. The system comprises a PC master station and a plurality of slave stations which support an EtherCAT protocol. The force sensor data collection system and method are applied to the field of data collection.

Description

technical field [0001] The invention relates to a force sensor data acquisition system and method based on EtherCAT. Background technique [0002] Ethernet is the most common communication protocol standard used by existing LANs today. At present, commercial Ethernet has been widely used, and has begun to be applied in the field of industrial control, forming industrial Ethernet. Real-time industrial Ethernet can meet the requirements of industrial sites for data transmission security, reliability, and real-time performance, and the data transmission rate of industrial Ethernet can fully meet the needs of data acquisition. The concept of "Industry 4.0" includes the basic model transformation from centralized control to decentralized enhanced control, and the networked data acquisition system has become the development trend of data acquisition technology. [0003] EtherCAT absorbs and adopts the technical idea of ​​Interbus "lumped frame", so that the effective utilization...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/40
CPCH04L12/40032
Inventor 赵杰郑培均刘玉斌李戈
Owner HARBIN INST OF TECH
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