With the shift to IoT at manufacturing sites, there is a growing need for wireless sensing of equipment dispersed throughout plants and factories. In many cases, continuous measurement is not required for equipment condition monitoring and maintenance, and by reducing equipment and construction costs through the use of wireless technology, it is now possible to monitor small equipment that was previously difficult to install. PiLink develops and sells wireless sensor network devices using 920 MHz band LPWA for the domestic market and 860 MHz band and 2.4 GHz band (ZigBee) for the overseas market according to the radio wave certification conditions of each country. However, with our unique modulation method and retransmission/playback method, we can transmit approximately 20,000 sensor data points in about 5 seconds (transmission distance: 20 to 30 m). In addition, the transmission data and timing can be changed by custom development according to the customer’s needs. For example, if you want to transmit only the judgment score by performing judgment scoring such as FFT on the child unit side, you can choose the LoRa method that can transmit data up to 500 m to 1 km despite its low transmission speed.
