This paper presents an automatic computer table based on STC89C52 MCU, the height and angle of the desk can be adjusted by MCU. The computer desk can also be connected with the Bluetooth of the mobile phone through th...This paper presents an automatic computer table based on STC89C52 MCU, the height and angle of the desk can be adjusted by MCU. The computer desk can also be connected with the Bluetooth of the mobile phone through the MCU to realize the wireless remote control and adjust the height and the angle of the display screen of the computer desk. According to man-machine engineering, the design can meet the needs of different adult populations for computer display height and angle requirements. The design of the computer desk can meet the daily needs of people in the office, and can effectively reduce the pain of cervical spondylosis, lumbar pain and other symptoms, which are caused by long working hours. The computer desk can improve work efficiency, strong practicability, high performance price ratio.展开更多
This paper studies the tracking control of general linear multi-agent systems with out time delays. The observer-based event-triggered control schemes will be considered or with- For the conventional distributed track...This paper studies the tracking control of general linear multi-agent systems with out time delays. The observer-based event-triggered control schemes will be considered or with- For the conventional distributed tracking protocol, the authors will not update the relative state in continuous time, i.e., the relative state will be updated by some events which happened in discrete time. A completely decentralized event-trigger will be designed for leader-follower systems. It is shown that all followers can track the leader asymptotically by the proposed protocol, if the feedback gain matrices are designed appropriately. Numerical simulations are also provided and the results show highly consistent with the theoretical results.展开更多
基金Supported by Hefei University of Technology Students’Entrepreneurship Practice Project(2015CXCY066)
文摘This paper presents an automatic computer table based on STC89C52 MCU, the height and angle of the desk can be adjusted by MCU. The computer desk can also be connected with the Bluetooth of the mobile phone through the MCU to realize the wireless remote control and adjust the height and the angle of the display screen of the computer desk. According to man-machine engineering, the design can meet the needs of different adult populations for computer display height and angle requirements. The design of the computer desk can meet the daily needs of people in the office, and can effectively reduce the pain of cervical spondylosis, lumbar pain and other symptoms, which are caused by long working hours. The computer desk can improve work efficiency, strong practicability, high performance price ratio.
基金supported by the 863 Program under Grant No.2012AA041709the National Natural Science Foundation of China under Grant No.61333007
文摘This paper studies the tracking control of general linear multi-agent systems with out time delays. The observer-based event-triggered control schemes will be considered or with- For the conventional distributed tracking protocol, the authors will not update the relative state in continuous time, i.e., the relative state will be updated by some events which happened in discrete time. A completely decentralized event-trigger will be designed for leader-follower systems. It is shown that all followers can track the leader asymptotically by the proposed protocol, if the feedback gain matrices are designed appropriately. Numerical simulations are also provided and the results show highly consistent with the theoretical results.
