34 results about "Fuzzy predictive control" patented technology

The invention discloses a tire protection device based on intelligent prediction and a control method thereof. The tire protection device comprises a tire device, a detection system, an acquisition module, a control system and a brake system; the tire device comprises a tire and a hub base. The detection system is mounted on the tire device for detecting the distance between the hub base and an inner wall of a tire, detecting a tire pressure signal in the tire and detecting a temperature signal of the tire; the acquisition module transmits the collected distance signal, tire pressure signal and temperature signal to the control system; the control system is used for controlling the brake system to further control the operation of a vehicle, and is used for reminding the tire to be repaired. The control method adopts T-S fuzzy prediction control, according to an input signal, the tire driving safety factor is obtained through a control algorithm, and the warning, maintenance and emergency stop control functions of the tire are realized according to different driving safety factors, so that the vehicle is safer to drive.

The invention discloses an intelligent temperature control device for an infrared carbon-sulfur analyzer electric arc combustion furnace body. The intelligent temperature control device is composed of a DSP, a GPRS module, a Zigbee transmitting and receiving module, a temperature sensor, a semiconductor refrigeration and heating piece and a GPRS network. In the working process, the temperature sensor is installed on the electric arc combustion furnace body and transmits temperature signals to the DSP, the semiconductor refrigeration and heating piece is controlled by a fuzzy algorithm to make the temperature stabilized at 60 DEG C, and temperature information is transmitted to a smart phone through the GPRS module and the Zigbee transmitting and receiving module so that the infrared carbon-sulfur analyzer can be controlled to be started. Intelligent control is achieved through a fuzzy prediction control algorithm, and therefore the control process of the temperature of the electric arc combustion furnace body can be stabilized and reasonable; the Zigbee protocol wireless control is applied, connection lines are omitted, and multiple electric arc combustion furnaces can be detected through a wireless sensor network; the smart phone participates in furnace body temperature control so that the temperature of the furnace body can be more conveniently controlled.

The present invention provides a fuzzy predictive control method based on the enhanced robustness characteristic of a disturbance observer. The steps are as follows: 1. Establish a discrete fuzzy disturbance observer model, an auxiliary controller and a robust predictive controller; 2. Solve the feedback gain of the auxiliary controller and the gain of the disturbance observer, obtain the minimum robust invariant set, and calculate the tight constraint set of the control input and state variables of the robust predictive controller; 3. Initialize the system state variables and assign them to the state variables of the nominal model; 4. For the The current nominal model state variables, solve the optimization problem that minimizes the upper bound γ of the predictive control performance, and obtain the current disturbance estimation value; 5. Calculate the control input of the system and act on the controlled object; 6. Apply the control of the nominal system The input acts on the nominal model and calculates the output of the current state, and the output of the current state quantity of the sampling system; 7. Substitute with and set k=k+1, and then jump to step 4. The present invention improves the stability of the predictive control system.