A reconfigurable sensor comprises a power supply module, a processor module, a
peripheral interface module, a communication module, an
external storage device and a sensor. The
power module is used for supplying power; the
peripheral interface module comprises a storage interface connected with an
external storage device and a reconfigurable front end, and the reconfigurable front end comprises a conversion circuit, an ADC, an SPI and an IIC interface which are connected with the sensor; the storage interface reads and writes in
external storage equipment, and a reconfigurable configuration
library and a
database are stored in the external storage equipment; a conversion circuit and an ADC interface in the reconfigurable front end are used for analog quantity
signal acquisition; the SPI and IIC interface is used for collecting digital quantity signals; the processor module controls the reconfigurable front end to read sensor data, carries out
data filtering processing on the sensor data, carries out
decision making in combination with data of different sensors, and adjusts the measuring range, the frequency and the measurement
physical quantity of the sensors; according to the invention, the measuring range and frequency can be changed according to the change of application requirements, and even the
physical quantity can be measured.