Design of a Low Power Data Collection Node

In the process of industrial production, it is often necessary to collect various kinds of data to assist production. Data is usually generated by various sensors, encapsulated by the collection node, and sent to the data center for storage and analyzing. The number of sensors in a manufacturing system is large, as well as the data collection nodes accordingly. These data collection nodes pose great challenges to energy saving. This article describes a design of a low-power data collection node that can be widely used for data collection and transmission. To fully reduce the power consumption of data transmission, which is the most significant part of the total power consumption, we designed the ultra-low power data transceiver constructed by low-voltage discrete devices working at the 1.8V voltage. The power consumption of other parts of the node is also optimized. As a result, the overall power consumption is less than 80mW when the data rate is 2Mbps. The low-power collection node can be connected to any sensor that generates a digital signal. Low power consumption and reliable features make it suitable for large-scale and complex production environments.