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536 results about "Dynamic equilibrium" patented technology

In chemistry, and in physics, a dynamic equilibrium exists once a reversible reaction occurs. The ratio of reactants/products changes, but substances move between the chemicals at an equal rate, meaning there is no net change. Reactants and products are formed at such a rate that the concentration of neither changes. It is a particular example of a system in a steady state. In thermodynamics, a closed system is in thermodynamic equilibrium when reactions occur at such rates that the composition of the mixture does not change with time. Reactions do in fact occur, sometimes vigorously, but to such an extent that changes in composition cannot be observed. Equilibrium constants can be expressed in terms of the rate constants for elementary reactions.

Intelligent heating network dispatching system

The invention relates to an intelligent heating network dispatching system. The system comprises a data monitoring and collecting unit, a load predicting unit, a heating network balancing unit and a dispatching unit. The data monitoring and collecting unit can carry out data collecting and monitoring on a heat source, a heat exchanging station, a heat user and a pipe network of a heat supplying system. According to data collected by the data monitoring and collecting unit and meteorological information, real-time user load predicting is carried out by the load predicting unit in a heating period, and an energy consumption predicted value is obtained. Comparing is carried out on actual running data of the heat supplying system and the energy consumption predicted value, and according to the compared result, correcting is carried out on the energy consumption predicted value. According to the real-time running data collected by the data monitoring and collecting unit, analyzing is carried out by the heating network balancing unit in the heating period, and a whole network dynamic balancing control scheme is confirmed. According to the energy consumption predicted value of the load predicting unit and the whole network dynamic balancing control scheme confirmed by the heating network balancing unit, intelligent heating network dispatching is achieved by the dispatching unit.
Owner:北京上庄燃气热电有限公司 +1

System and method for predicating time-varying user dynamic equilibrium network-evolved passenger flow

ActiveCN103632212AMeet the needs of short-term passenger flow forecastingMeet forecasted needsRoad vehicles traffic controlForecastingPrediction algorithmsTime distribution
The invention discloses a system and method for predicating time-varying user dynamic equilibrium network-evolved passenger flow and belongs to the technical field of urban rail traffic safety. The system comprises an AFC (auto fare collection) system, and a video terminal and the like. A network database is sequentially connected with a passenger flow distribution module, a passenger flow correction module and a passenger flow analysis module. The passenger flow video analysis module is connected with the network database module and the passenger flow correction module respectively. The video terminal and the AFC system transmit passenger information data and store the same in a network database. The passenger flow video analysis module analyzes real-time video data, and the passenger flow correction module adopts an AUKF (adaptive unscented Kalman filter) for preprocessing. The passenger flow data are matched and predicated by means of a passenger flow prediction algorithm, and services like an inquiry are provided by a human-computer interaction terminal. The requirements of multiple users for road network short-term prediction under emergency conditions are met, real-time distribution and dynamic prediction for the bounded rationality of the passenger flow are realized, and real-time inquiring, sharing and decision making of enterprises for passenger flow information are met.
Owner:BEIJING JIAOTONG UNIV

Refrigerant flow control method for multi-connected air-conditioning system during heating

The invention discloses a refrigerant flow control method for a multi-connected air-conditioning system during heating. The refrigerant flow control method controls the refrigerant flow in the system by adjusting the opening of an electronic expansion valve in a switched-off indoor unit, and comprises the following steps: a. enabling the air-conditioning system to enter a heating operational mode; b. switching off or switching on the valve according to the condensing pressure and evaporating pressure of the system; c. switching on the valve according to the exhaust temperature of a compressor; and d. switching off or switching on the valve according to the condensing saturation temperature converted from the condensing pressure or according to the coil temperature of the switched-on indoor unit, the coil temperature of the switched-off indoor unit, the outlet temperature of a heat exchanger in the switched-off indoor unit and the inlet temperature of the heat exchanger in the switched-off indoor unit. The dynamic equilibrium control strategy for a refrigerant provided by the invention can automatically adjust the opening of the electronic expansion valve in the switched-off indoorunit according to the system operation conditions, thereby avoiding energy waste and reduced heating effect caused by overlarge deviation of the opening of the expansion valve, and improving the heating performance of the air-conditioning system.
Owner:青岛海信网络能源股份有限公司

Gait pattern generating device for legged mobile robot

A gait generation system of a legged mobile robot, in particular a biped robot that has the dynamic model expressing the relationship between the motion of the body and leg and the floor reaction force, and provisionally determines the current time gait parameters including at least parameters that determine leg trajectory and the like in response to a demand, supposes the parameters of a periodic gait, corrects the current time gait parameters such that the body trajectory determined from the dynamic model and the parameters of the current time gait, etc., converges to a body trajectory determined from the parameters of the periodic gait, and determines instantaneous values of the current time gait based on the corrected current time gait parameter. With this, the system can generates a gait of any stride, turning angle and walking period, including the floor reaction force acting on the legged mobile robot, that satisfies the dynamic equilibrium condition. Further, the system can generates a gait in such a manner that the displacement and velocity of each robot part are continues at the boundary of the generated gait and that succeeding thereto, can generate a gait that is high in the margin of stability, can predict future behavior of the robot and generate a gait such that no disadvantages such as posture divergence occurs.
Owner:HONDA MOTOR CO LTD

Method and circuit for dynamically equalizing battery management system

The invention relates to a method and a circuit for dynamically equalizing a battery management system. The method comprises the following steps of: 1) detecting the voltage of each single battery in each group of battery packs sequentially connected in series by using embedded control software; 2) judging the location number of the single battery which needs to be charged or discharged separately and has excessively low or high voltage by using a central processing unit (CPU); 3) giving a control command out by using the CPU, controllably gating a corresponding polarity selecting switch block to perform polarity inversion on a collection bus, controllably gating a corresponding battery selecting switch block to perform polarity matching at the same time, controlling the working direction of a bidirectional isolation transformer and connecting the single battery which needs to be charged or discharged separately and has the excessively low or high voltage to the connection bus for charging or discharging so as to realize energy transfer; and 4) repeating the steps 1) to 3) until the voltage of each single battery in each group of battery packs sequentially connected in series is in a set allowable error range so as to realize dynamic equilibrium. The number of charging and discharging devices and circuit complexity of the battery management system can be reduced remarkably.
Owner:SHENZHEN KELIE TECH
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