A compression-sampling method applied to the analog signal is proposed for the embedded system to decrease its power consumption. The proposed method reduces the requirements on the hardware when compressing the observation matrix. First, rip criterion are set for the observation matrix. Then, the compressive sampling matrix is constructed based on improved M-sequence. MSP430 microprocessor is chosen concerning the system power consumption and the complexity of the peripheral circuit. Finally, the system is verified by detecting the vibration signal in the ball screw dynamic test. The experimental results show that the vibration signal can be collected at the frequency lower than sub-Naikui sampling frequency and the original signal can be reconstructed accurately.