The scramjet performance of air-breathing hypersonic vehicle is highly correlated with flight height, Mach and angle of attack (AOA). The violent disturbance of the AOA can cause the engine power off. Consequently, the maneuverability of hypersonic vehicle is strictly limited in the cruising period....

This paper analyses the medium redundancy technology in the Industrial Ethernet POWERLINK network. Ethernet data before heading to Media Access Controller, in order to achieve the medium redundancy, we design a Link Selector functional block, it can put three physical networks of the best quality network...

Fire-fighting robot can instead of humans in the event of a fire extinguishing task. An obstacle avoidance strategy based on fuzzy control is presented in this paper. The method doesn't have to determine the motion model of fire-fighting robot accurately. Robot can detect obstacles by using infrared...

As a new automatic diagnosis technology, RFID is gradually widely used. But the characteristics of the RFID system and the limitations of RFID equipment have brought many security problems. For these problems, this paper discusses and explains system composition and security problems of RFID, analyzes...