13results about How to "Improve system energy efficiency" patented technology

The invention belongs to the technical field of power battery cooling, and particularly relates to a flow control method and system for a liquid cooling system of an electric vehicle-mounted power battery, and the method comprises the steps: carrying out the parameterization of a geometric model of the liquid cooling system; establishing an equipment resistance model based on the equipment flow resistance characteristics; initializing flow distribution, constructing a dynamic flow distribution model, calculating the flow of each node and judging whether the flow meets a target requirement or not, and if not, readjusting the flow; calculating the resistance of each section, determining the total resistance of the pipeline, and checking the water pump lift; the flow uniformity is judged by calculating the pipeline resistance between the nodes, and if the flow is not uniform, the flow is redistributed or the pipeline design is optimized until the flow is uniform. Through flow control, the problems of non-uniform flow distribution and poor temperature consistency of multiple battery packs in the prior art are solved, the optimal working state of the power battery is ensured, overheating and overlarge temperature difference are avoided, and the operation efficiency, stability, durability and safety are improved.

The invention provides an elevator intelligent air curtain and a semiconductor refrigeration control method. The method comprises the steps that the historical temperature and airflow distribution data in an elevator are obtained; according to historical temperature and airflow distribution data, training a temperature and airflow distribution prediction model by adopting a long-short-term memory network; acquiring real-time temperature and airflow distribution data in the elevator, inputting the temperature and airflow distribution prediction model, and predicting future temperature and airflow distribution; according to the predicted temperature and airflow distribution, an optimization algorithm is adopted to calculate the opening angle of the air curtain and the refrigeration power parameter of the refrigeration cold piece, and the optimal control strategy of the air curtain and the refrigeration cold piece is obtained with the temperature control precision and the system energy consumption as optimization targets; and parameters in the optimal control strategy are input into a controller of the air curtain and the refrigerating fins, the air speed and the air direction of the air curtain and the refrigerating power of the refrigerating fins are adjusted, and optimal control over the temperature and airflow distribution in the elevator is achieved.

The application provides a self-adaptive solid state disk power failure protection method and device. The method comprises the following steps: after triggering power failure, firstly, the physical address of the data to be persisted in the volatile cache is directly determined by calculation based on a pre-stored linear mapping relationship, so as to eliminate the energy consumption and delay of traditional traversal search; secondly, the real-time available energy of the energy storage array is obtained and compared with a preset energy demand threshold; the energy demand threshold is obtained based on load prediction; if the energy is insufficient, part of the data subset is abandoned to be written according to the dynamically generated data priority order; finally, the selected data subset is written into the non-volatile storage medium according to the calculated physical address. The application significantly improves the power failure protection success rate and system energy efficiency.

The invention discloses a glacier melt water resource cooperative regulation and ecological restoration system and method, and belongs to the technical field of water conservancy projects and ecological restoration. The system comprises a distributed dynamic sensing network used for acquiring multi-source environment data in a drainage basin; the multi-agent collaborative decision-making module is used for carrying out collaborative decision-making by utilizing a deep reinforcement learning agent, carrying out global multi-objective optimization through a central coordinator and generating a collaborative regulation and control instruction; the self-adaptive execution and feedback adjustment module is used for executing the instruction and collecting feedback data; and the system self-evolution learning module continuously optimizes the decision strategy based on experience playback and offline training. According to the method, intelligent coordinated regulation and dynamic optimization of glacier melt water diversion, groundwater recharge and vegetation irrigation are realized; the water resource utilization efficiency, the recharge precision and the vegetation recovery effect are effectively improved, and the system has the adaptation and evolution capacity for coping with environmental changes.

The invention discloses a two-phase cold plate spraying cooperative battery thermal runaway intelligent hierarchical control method and system, and relates to the technical field of battery thermal control. The two-phase cold plate spraying collaborative battery thermal runaway intelligent hierarchical control method comprises the following steps: S1, collecting and preprocessing thermal state working condition data, component operation data and environment auxiliary data, and constructing a standardized thermal state data set; s2, top evaluation is conducted on the top sudden heat source intensity, and the starting behavior of a spraying device is regulated and controlled; s3, bottom analysis is conducted on the bottom steady-state cooling bearing condition, and the opening degree of a cold plate runner is dynamically adjusted; and S4, performing vertical evaluation on the vertical heat flux coupling characteristics in combination with the local thermal disturbance trend, and performing linkage control on the top spraying frequency and the operation state of the condensation path. The problems that in battery thermal management, a traditional single cooling mechanism is difficult to consider distributed temperature control requirements of bottom steady-state heat absorption and top sudden refrigeration, so that heat flux coupling is uneven, and the local overheating risk is prominent are solved.

The utility model discloses a gas-liquid separation device and a heat pump system, and relates to the technical field of heat pumps, the heat pump system comprises a first heat exchanger, the first heat exchanger comprises at least two heat exchange parts, the gas-liquid separation device comprises at least two gas-liquid separation cavities, and the gas-liquid separation cavities are communicated with the heat exchange parts. Each gas-liquid separation cavity is provided with a refrigerant inlet and a liquid outlet, and the refrigerant inlets and the liquid outlets of different gas-liquid separation cavities are arranged to communicate with different heat exchange parts in the first heat exchanger. According to the technical scheme, the heat exchange effect and the system energy efficiency of the heat exchanger can be improved.

The invention discloses a fiber ceramic-based catalytic filter element for denitration of industrial flue gas and a preparation method of the fiber ceramic-based catalytic filter element, and belongs to the technical field of catalytic filter elements. According to the preparation method, firstly, a chelating agent is introduced in the preparation process of TiO2 sol to improve the dispersity and particle size uniformity of TiO2 nanoparticles, the chelating agent can effectively adjust the hydrolysis rate of butyl titanate by means of the strong coordination acting force of the chelating agent and titanium ions, and high-dispersity and small-particle-size TiO2 sol is constructed; then, the fiber ceramic base material is immersed in the TiO2 sol, a firm TiO2 coating is formed after calcination, the firm TiO2 coating serves as a carrier with a high specific surface area, and the binding force between the firm TiO2 coating and the base material is enhanced; the preparation method comprises the following steps: firstly, preparing a TiO2 coating, then dipping a solution containing vanadium and tungsten precursors onto the composite carrier, and calcining to form a main active component V2O5 and a cocatalyst WO3 which are highly dispersed on the surface of the TiO2 coating to form selective catalytic reduction active sites, thereby finally obtaining the fiber ceramic-based catalytic filter element which is good in blocking resistance, water-resistant, sulfur-resistant and high-temperature-resistant and can be used for industrial flue gas denitration.

The invention provides a safe energy management method of a hydrogen-lithium hybrid power system and the hydrogen-lithium hybrid power system, which can solve the problem that the existing energy management method cannot cope with the output characteristic drift of a fuel cell under a high dynamic load or a dynamic environment, guarantee the system safety, construct a fuel cell efficiency model, and improve the safety of the system. The fuel cell efficiency is determined based on data measured in real time, an online parameter estimator is designed and used for identifying unknown parameters in a fuel cell efficiency model in real time, the power safety range of a fuel cell is determined according to an identification result, and a preset lithium battery charge level constraint is combined to jointly define a safety working interval of the hydrogen-lithium hybrid power system; based on the safety working interval, establishing a safety constraint condition based on a control barrier function to ensure the forward invariance of the safety working interval; a cost function including an energy consumption index and a life index is constructed, and a model is established in combination with a safe working interval and used for predicting and controlling an energy management optimization problem; and solving the established model to obtain the reference output power of the fuel cell, and acting the reference output power on the hydrogen-lithium hybrid power system.

A multi-mode water-fluorine multi-split system, comprising refrigerant circulation loops (101) of multiple air conditioning units (100), an outdoor heat exchanger (102) and an indoor heat exchanger (103), and further comprising a first circulation loop (200), a second circulation loop (300) and a primary heat exchanger (3). The first circulation loop (200) and the second circulation loop (300) exchange heat with one another by means of the main heat exchanger (3), a second medium channel (105) is provided in each of the outdoor heat exchanger (102) and the indoor heat exchanger (103), and the first circulation loop (200) and the second circulation loop (300) can, by means of each second medium channel (105), exchange heat with a first medium channel (104) and / or a first air heat exchange channel (107) in each outdoor heat exchanger (102), and with the second medium channel (105) and / or a second air heat exchange channel (106) in each indoor heat exchanger (103). The present system can achieve high-efficiency utilization of natural energy, energy recovery, defrosting, and free dispatch of cold and heat energy among various systems, improving operation efficiency under a small load, and ensuring that an air conditioning system can be stably and efficiently operated throughout the year.

The embodiment of the invention provides a packaging structure of a multi-stack high-bandwidth memory and a data communication method. The packaging structure comprises a multi-layer internet, at least two high-bandwidth memory stacks and a path selection control unit matched with each high-bandwidth memory stack, the multi-layer internet is arranged between the at least two high-bandwidth memory stacks, and the path selection control unit is connected with the multi-layer internet; each high-bandwidth memory stack comprises a plurality of DRAM (Dynamic Random Access Memory) bare chips and a bottom logic bare chip which are vertically stacked; the multi-layer internet network comprises at least two transverse interconnection communication paths and is used for realizing data communication between the at least two high-bandwidth memory stacks; and the path selection control unit is configured to respond to a cross-stack target data access request, and select one target path from the at least two transverse interconnection communication paths according to a preset selection strategy to carry out target data transmission. By utilizing the packaging structure disclosed by the invention, the memory access flexibility and the parallel processing efficiency can be remarkably improved.

The application relates to a self-adaptive temperature control power redistribution snow melting front end control module for a turnout snow melting system, which is characterized by comprising a CPU processing module, a control module, a voltage acquisition module, a current acquisition module, a protection module, a power supply processing module, a heating strip temperature acquisition module, a pre-warning processing module and corresponding interfaces; the CPU processing module is connected with the control module, which is used for controlling on-off to open or close power supply connected to each heating strip; the voltage acquisition module connected with the CPU processing module is used for acquiring the voltage of a transformer primary coil interface and a secondary coil interface; the current acquisition module connected with the CPU processing module is used for acquiring the working current of each heating strip; through real-time monitoring and intelligent algorithms, the application automatically selects the optimal heating strategy, safely drives the over-configured heating load under the premise of not increasing the capacity of an isolation transformer, maximally utilizes the existing equipment and reduces the system upgrading cost.

The invention provides a refrigerator intelligent control method and device based on infrared array scanning and electronic equipment, and relates to the technical field of kitchen electric appliance intelligent control. The refrigerator intelligent control method comprises the steps that temperature data of a plurality of angles in a refrigerator are obtained by rotationally scanning an infrared array sensor; fusing the temperature data of the plurality of angles in the refrigerator to generate a panoramic temperature field of the internal space; analyzing temporal and spatial change characteristics of the temperature data based on the panoramic temperature field, and identifying the opening and closing state of a refrigerator door and a behavior event that a user puts food; and according to the recognized behavior event and based on a specific high-temperature area positioned in the panoramic temperature field, an air direction adjusting device is controlled to be aligned with the specific high-temperature area for directional air supply, and a refrigeration compressor is controlled in a linkage mode. According to the method, dynamic monitoring and modeling of the global temperature field in the refrigerator are achieved, accurate load data are provided for the compressor, the start-stop logic of the compressor is optimized, and the purposes of saving energy, prolonging the service life and improving the fresh-keeping effect are achieved.

The invention discloses a battery heating system, method and device, electronic equipment and a computer program product, and relates to the technical field of electric automobiles. The method comprises the following steps: under the condition that a battery is in a charging state, detecting a battery temperature at the position of the battery; under the condition that the battery temperature is smaller than a first temperature threshold value, a locked-rotor heating mode of the motor is started, and the motor temperature at the position of the motor is detected; under the condition that the motor temperature is larger than a second temperature threshold value, a preset valve in the heat circulation pipeline is adjusted to be in a second state from a first state, under the condition of the first state, the heat transfer medium circulates independently in the first heat circulation pipeline and the second heat circulation pipeline, and under the condition of the second state, the heat transfer medium circulates independently in the first heat circulation pipeline and the second heat circulation pipeline. And the heat transfer medium circulates in a pipeline formed by the first heat circulation pipeline and the second heat circulation pipeline. According to the invention, the technical problems of invalid absorption of PTC heat and slow battery temperature rise caused by too low initial temperature of the motor in a low-temperature environment are solved.