Introduces the control system of metro regenerative braking energy absorption device,it first proposes a design program using the dual-CPU architecture based on ARM + DSP;and then designs the hardware of ARM board and DSP board;finally designs the electrical control circuit to achieve the disconnection and work of device which is controlled by the control system.

This paper disserts the application of air seeder in practice and the method of lifting soaking gas property,makes a pneumatic analysis on soaking gas equipment and findes out the reason of low soaking gas property and provides the improving measures.