Robots replacing people is an effective way of traditional stamping production industry technology upgrading. The design of four degrees of freedom moving manipulator with controller MP2300S is presented. The manipulator is composed of four moving parts, such as a rotational base, a moving vertically upper arm, a stretching horizontally forearm and a rotating gripper, each of which is actuated by AC servo motor. The centralized control mode that a multi-axis motion controller could control dozens of different robots whose axises are driven by AC servo motors is achieved. The results of test show that the robot could move quickly and smoothly from one place to another in the range of motion. The maximum period of the operation time is no more than 8 second per piece and the repeat positioning accuracy is 0.1 mm.

The state feedback H∞ control problem for networked control systems with quantization and random packet dropouts is discussed．
The random packet dropouts from the sensor to the controller and from the controller to the actuator are considered． The quantizer
considered here is dynamic． The state feedback H∞ controller can be constructed via solving a linear matrix inequality． A quantized
H∞ control strategy is derived，with a condition on the quantization range and the error bound satisfied，such that the closed － loop system
with quantization and random delays exponentially mean － square stable and with a prescribed H∞ performance bound． An example
is presented to illustrate the effectiveness of the proposed method．