An Embedded Electric Meter Based on Bluetooth Data Acquisition System

We design an embedded electric meter based on Bluetooth data acquisition system in view of the complicated cables and accident potential in the process of data acquisition of electric meter. Combined wireless Bluetooth communication technology with data acquisition system, we build wireless data acquisition system based on ARM processor LPC2142 and Bluetooth chip Rok101008 in the embedded electric meter which can reduces the cable connections. During the design process of embedded electric meter, we select the appropriate shunt, eliminate or reduce the effect of ESD before it connects with sensitive units so as to narrow the broadband circuit and isolate sensitive units, access the varistor in the power supply circuit to eliminate or reduce EFT. The major difference between Bluetooth data acquisition system and other data collector is that it realizes wireless data transmission after the A/D conversion. Furthermore, the system is simpler, integrated, anti-interference, stronger mobility and practicability.