| Summary: | 碩士 === 國立虎尾科技大學 === 資訊工程系碩士班 === 107 === With the gradual increase of Industry 4.0 industry and application, in addition to the development of new industrial Ethernet technology in response to industrial demand, the application of the animal network-wireless sensing network has also been greatly developed, resulting in the birth of The new concept of combining the Internet of Things with industrial Ethernet - Industrial Internet of Things (IIoT).
In industrial IoT applications, many devices require excellent computing power and lowest power consumption while networking. In industrial Ethernet technology, EtherCAT has high-speed communication performance, instant communication system and low-cost master station hardware erection. therefore. In this study, the EtherCAT industrial Ethernet module can be effectively implemented through the self-designed EtherCAT slave module, and all the slave stations are connected in a ring network via the EtherCAT network. In this study, the Wireshak packet parsing software is used to parse the EtherCAT network of the system. In the case of four groups of slaves connected, the transmission delay time of each packet is 0.2 ms. At the same time, the motor drive controller ECAT-2091S with EtherCAT protocol is used to test the motor cycle of the stepper motor 17HS1910 in the Position control mode to verify the EtherCAT point-to-point control, and draw the motor acceleration curve and displacement curve for the motor. Analysis.
In addition, in the EtherCAT slave module, the wireless transmission module USR-WIFI232 is connected to the low-power wireless sensing module to realize the function of the wireless sensing network. Among them, the low-power wireless sensing module designed by the Institute performs the actual machine test on the radial power tool holder, and senses and extracts the temperature and vibration signals of the machine through the EtherCAT master station. Among them, the vibration signal can obtain the time domain spectrum by Fourier transform, and can be used as the basis for judging the condition of the subsequent machine.
The low-power wireless sensing module consumes about 6.82 mA in the M4 LPDS+NWP connect AP mode. If the battery is continuously powered by the 2000 mA/H battery, the low-power wireless transmission module can transmit continuously for 12 days. Finally, this study integrates the self-designed EtherCAT slave module with the low-power wireless sensing module. EtherCAT's low-power smart mechanical sensing that enables instant detection of the machine and long-term observation of the machine's condition.
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