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This paper aims at the control of variable-frequency air-conditioning system that has characteristic as large inertia and pure lag. The neural network PID control in the variable-frequency air-conditioning system is introduced and simulated. In the learning algorithm of neural network PID controller, the output of system is needed to tune the weights of(More)
The controlled object in heating, ventilating and air-conditioning (HVAC) system has large inertia, pure lag and nonlinear characteristic. The uncertain disturbance factors affect the control performance. Combined the fuzzy control and general PID control, the temperature and humidity of room are controlled in HVAC system of a TV building. In winter, the(More)
This paper addresses the modeling and control of heating, ventilating, and air-conditioning (HVAC) system while the system is operating under uncertainty and nonlinearity. In order to acquire better performance in the HVAC system, the neuron adaptive PID control was studied through comparing traditional PID control in simulation, which is a method for(More)
This paper studied the application of neural network PID in the central air-conditioning system. From the control viewpoint, the central air-conditioning system has chrematistic as large inertia, delay and nonlinear and uncertain disturbance factor, for example the indoor and outdoor. In order to acquire better performance in the central air-conditioning(More)
The pupil auto-tracking system is a key component of the full-automatic perimeter. Taking the advantage of integral image in counting characteristic value rapidly, we studied the relationship between training stages and total error detection rate based on the training of Adaboost strong classifier. Besides, a testing strategy of amplification detection(More)
The aim of this study is to investigate the sensorless detection method of the pusher plate position for a pulsatile left ventricular assist device (PF-LVAD) based on the driving current waveform. The PF-LVAD is synchronized to the trigger signal of a mock left ventricle, and the experiment is conducted in a mock circulatory system (MCS). The results show(More)
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