34results about How to "Guaranteed real-time control" patented technology

The invention discloses a cooling system of a power distribution cabinet and a control method thereof. There are several second temperature sensors, the ratio of the maximum value to the minimum value of the distance between any two second temperature sensors is not greater than 3:1, a controller is arranged in the cabinet, and the input terminal of the controller is connected to the first temperature sensor and the second temperature sensor. The temperature sensor is connected in communication, and the output terminal of the controller is connected in communication with the control terminal of the reversing fan. The invention can improve the deficiencies of the prior art, realize precise control of the heat dissipation of the power distribution cabinet while effectively controlling the cost.

The invention belongs to the technical field of movement controlling of unmanned vehicles, and especially relates to a method for tracking and controlling a locus of an unmanned bicycle. The method comprises the steps of: firstly, establishing a balance dynamic model of the bicycle, and establishing discrete state equations of a bicycle self-balance control system into which a self-balance controller is added; secondly, establishing a discrete kinetic model of the bicycle, and carrying out linearization; then combining the kinetic model with the self-balance control system, carrying out corresponding simplification processing, and establishing a seven-dimension state predicting model of the bicycle; and finally, using the seven-dimension state predicting model as a prediction model of a bicycle locus tracking algorithm, carrying out locus tracking and controlling on the bicycle, and solving optimal control input of each sampling moment on line. The bicycle locus tracking and controlling method based on the seven-dimension state predicting model is capable of accurately predicting the state of the bicycle in the future time, the calculation amount is small, and a good control effect is ensured by the on-line real-time performance.

The invention relates to gyroscopes. In order to achieve production of gyroscope control loop hardware and integrate the function of analysis and testing of a gyroscope control loop, and according to the technical scheme, the gyroscope hardware production device comprises a testing component, a processing unit and a power supply device; the testing component comprises a high-precision two-axis positional rate turntable and a gyroscope mounted on the same; the processing unit comprises a data acquisition and control device, a data processing industrial personal computer, a digital rebalance loop and a control circuit; and the power supply device comprises an exciting power supply, a circuit board power supply and a gyroscope power supply. The method and the device are mainly applicable to design and production of the gyroscopes.

The invention discloses an anti-slip multipurpose hydraulic expander. The anti-slip multipurpose hydraulic expander comprises an expansion arm main body, a barb belt and an inner insertion block, wherein the expansion arm main body is of a two-part symmetrical clamp type structure, each expansion arm main body is composed of two layers of symmetrical buckling structures, and the upper portion andthe lower portion of the expansion arm body are fixed through at least two bolts; a second rotating pin is vertically inserted into the two corners at the left end of the expansion arm main body, a connecting plate is fixedly connected to the top surface and the bottom surface of the second rotating pin, and the other end of the connecting plate is fixedly connected to the top surface and the bottom surface of the first rotating pin inserted into the two corners at the right end of the hydraulic machine body. According to the anti-slip multipurpose hydraulic expander, the various structures are matched with each other, so that an anti-slip multi-purpose hydraulic expansion machine structure is formed, the real-time control of expansion is guaranteed, the expansion speed and the expansion degree can be accurately controlled, and the smooth rescue can be guaranteed, a plurality of functions are achieved, multiple functions can be realized by one device, and the use value of the device isimproved.

The invention discloses a driving method of a photoelectric isolation parallel-in-serial-out circuit. The method comprises the following steps of: adopting at least one parallel-in-serial-out extended IC (Integrated Circuit) chip and realizing the input of N switching values by using a cascade connection mode; driving the IC chip by adopting an interruption state machine; storing the current state value of the IC chip in a variable FSM (Finite State Machine), wherein the FSM has an initial value of 0 in an initial state of the IC chip; responding timer interception once at set time intervals,processing operations needing finishing in various states of the interception and sequentially entering the next state of the 2*N states in sum; storing the N switching value data in a N-bit variableShift_R when entering the final state, wherein each bit corresponds to one external switching value input, and then changing the FSM into a value corresponding to the initial state. The driving method of the photoelectric isolation parallel-in-serial-out circuit, which is proposed by the invention, drives the parallel-in-serial-out extended IC chip by adopting athe interception state machine so as to ensure the real-time control of an interface circuit.