17results about How to "Increase operating frequency" patented technology

The invention discloses a twisting clamping refrigerating and heating device with cold and hot end separation and work recovery functions. The twisting clamping refrigerating and heating device comprises a stator module, a rotor module and a heat exchange module. The stator module comprises an inner gear and an outer gear, and teeth are arranged on partial edges of the inner gear and the outer gear. The rotor module comprises a torsion clamping refrigerant and a loading gear; the heat exchange module comprises an inner cylinder and an outer cylinder. And the loading gear revolves to drive the torsion clamping refrigerant to change the heat exchange position, and rotates to drive the torsion clamping refrigerant to be loaded and unloaded. When the loading gear is meshed with the inner gear, the loading gear rotates in the forward direction, and the torsion clamping refrigerant generates heat due to loading; when the loading gear is meshed with the outer gear, the loading gear rotates reversely, and the torsion clamping refrigerant absorbs heat due to unloading. According to the device, a heat exchange area is effectively separated, the problem of mutual interference of cold and heat is avoided, and the heat exchange efficiency and power are greatly improved; the resilience force generated when the torsion clamping refrigerant is unloaded is transmitted to the loading area, auxiliary power is provided for the loading process, recycling of work is achieved, and the energy utilization efficiency is improved.

The invention discloses a large model reasoning hardware accelerator based on data flow execution, and belongs to the technical field of large model reasoning hardware acceleration. Each node comprises a linear calculation kernel used for sequentially completing query / key / value projection and attention output projection in multi-head attention calculation, dimension raising projection and dimension reduction projection calculation in a feedforward neural network layer, and inverse quantization operation after each projection is output; the multi-head attention calculation kernel is used for completing loading and quantization of query / key / value vectors, multi-head division and cache management, attention score calculation, Softmax normalization, context vector generation and KV cache updating; the RLA kernel is used for completing residual addition, layer normalization, quantization / inverse quantization and nonlinear activation calculation of each layer; the three cores in the same node are located in the same SLR area, and data transmission is carried out through a hardware queue and an HLS blocking mechanism. According to the invention, high hardware utilization rate and low-delay reasoning can be realized.

The invention discloses a Multi-DNN reasoning-oriented mixed precision FPGA (Field Programmable Gate Array) hardware accelerator and a quantification method, and relates to the technical field of neural network accelerators. The multi-DNN reasoning-oriented mixed precision FPGA hardware accelerator comprises a processor, a plurality of calculation core modules, a DDR (Double Data Rate) module and an intermediate data cache module; each computing core module supports one of high, medium and low computing precision, and a computing unit array module in each computing core module consists of computing units for performing three bit width multiply-accumulate operations; the computing unit is realized by different resources in the FPGA; according to the quantization method, weight data of the neural network are quantized by taking a layer as a unit by adopting three bit widths, namely a high bit width, a middle bit width and a low bit width, and intermediate feature map data of a neural network layer are quantized by adopting one bit width. According to the hardware accelerator and the quantification method provided by the invention, the hardware utilization rate, the throughput and the energy efficiency ratio of the accelerator can be improved, the neural network load of mixed precision quantification can be processed in parallel, and the memory access bandwidth and the energy efficiency of Multi-DNN reasoning are optimized.

This utility model discloses a tank-type stacked pressure-free variable frequency secondary water supply device, relating to the technical field of water supply equipment. It includes a flow stabilizing tank, a pump assembly, a pressure stabilizing tank, and a detection assembly. The flow stabilizing tank is connected to the equipment's inlet pipe. The pump assembly is connected to the outlet pipe of the flow stabilizing tank and includes multiple pump units, each independently frequency-controlled, pumping water to the outlet pipe. The pressure stabilizing tank is connected to the outlet pipe and used to balance water pressure fluctuations. The pressure stabilizing tank includes a shell and multiple air chambers, each with a different internal pressure. The detection assembly, located on the outlet pipe, includes a pressure sensor and a pressure switch. The pressure sensor detects water pressure changes on the outlet pipe, and the pressure switch controls the start and stop of the pump units. The technical solution provided by this utility model aims to solve the problem of insufficient capacity of traditional large-capacity single-chamber tanks to cope with high-frequency pressure fluctuations, ensuring a stable water supply.

This invention provides an electronic card cooling device with a multi-dimensional extended structure. Through a collaborative design of a two-dimensional planar array and a three-dimensional cascade, it significantly increases the effective working volume of the electronic card material within a limited space, thus laying the structural foundation for improved cooling capacity. Based on this, the cooperation between the magnetic drive unit and the mechanical linkage module enables stable and rapid reciprocating motion of the electronic card components between the hot and cold ends. Furthermore, the timing delay control of the circuit control system further ensures precise synchronization between the temperature change cycle of the electronic card effect and the mechanical motion cycle, allowing the electronic card material to absorb heat when in contact with the hot end and release heat when in contact with the cold end, avoiding energy loss. This invention, by simultaneously expanding the number of electronic card materials and components in two-dimensional and three-dimensional space, achieves a spatial dimension multiplication of cooling capacity, maximizing the cooling effect in space-constrained scenarios, and providing an effective solution to overcome the bottlenecks of existing electronic card cooling technologies.

The invention discloses a refrigerating machine room energy-saving control system and method based on water pump frequency modulation, and particularly relates to the technical field of industrial water pump frequency conversion. The system comprises a cooling tower, a cooling water pump, a refrigerating unit, a chilled water pump, a central air conditioner terminal and an intelligent remote control system; the cooling water pump is connected with the cooling water pipeline; the refrigerating unit is connected with the central air conditioner tail end through a chilled water pipeline, the chilled water pump is connected with the chilled water pipeline, and a cooling water pipeline flowmeter and a chilled water pipeline flowmeter are arranged on the cooling water pipeline and the chilled water pipeline respectively. And the chilled water pipeline flowmeter, the cooling water pipeline flowmeter, the cooling water pump, the chilled water pump and the central air-conditioning terminal are all connected with the intelligent remote control system. The invention can effectively avoid meaningless loss of energy, reduce the power consumption of the water pump, realize a remarkable energy-saving effect and improve the overall operation efficiency.

The invention relates to the technical field of refrigeration equipment recycling, in particular to a water machine central air conditioner based on multi-split outdoor units and a method. The water machine central air conditioner comprises a refrigerant circulation system which comprises a heat exchanger and at least one multi-split outdoor unit, and when two or more multi-split outdoor units are arranged in parallel; each multi-split outdoor unit and the heat exchanger form circulation through an air pipe and a liquid pipe; the water circulation system is provided with a cold tail end or a heat tail end, and the water circulation system exchanges heat with the refrigerant circulation system through the heat exchanger; according to the technical scheme provided by the invention, the multi-split outdoor unit is used as a main machine of the water machine central air conditioner, so that the multi-split outdoor unit which can only be disassembled and recycled into parts and waste metal originally can be used as a cold and hot water unit, and a new path is provided for reutilization of the waste second-hand multi-split outdoor unit; the solid waste treatment cost for treating the waste multi-split refrigeration air conditioning equipment is reduced, and meanwhile the economic benefits of waste multi-split recovery and transformation are improved.

The invention provides a self-adaptive clock implementation method and system for developing a time sequence margin of a reconfigurable processor. The method comprises the steps that S1, a simulation tool conducts dynamic time sequence analysis on an application program executed by the reconfigurable processor to obtain delay information; the delay information is sent to a compiler, the compiler carries out data flow diagram generation and mapping optimization on the application program, meanwhile, the corresponding delay information is coded into configuration information, and a working load factor is obtained based on the coded configuration information; and S2, inputting the working load factor and a PVT factor generated by the PVT detection module into a phase selection module together, selecting one of the multi-phase clocks generated by the multi-phase clock generation module by the phase selection module according to the working load factor and the PVT factor as an adaptive clock, and providing the adaptive clock to the reconfigurable processor.

Provided is a nitride semiconductor substrate provided with: a silicon substrate having a resistivity of 1000 [Omega] cm or more; or a base substrate provided with a silicon layer having a resistivity of 1000 [Omega] cm or more on the surface thereof; and a group III nitride semiconductor thin film epitaxially formed on the silicon substrate or the silicon layer, the nitride semiconductor substrate being characterized in that the average value of the carbon concentration in the group III nitride semiconductor thin film is 3E + 18 atoms / cm3 or less. As a result, a nitride semiconductor substrate having low high-frequency loss and high thermal conductivity and a method for manufacturing the same are provided.

The invention discloses a new energy off-grid operation system and method. The new energy off-grid operation system comprises a large-capacity energy storage system branch, an active / passive filtering system branch, a water electrolysis hydrogen production system branch, a station power system branch and a plurality of new energy alternating current system branches which are respectively connected with a medium-voltage alternating current bus; the plurality of new energy alternating current system branches inject electric energy generated by new energy power generation into a power grid through a medium-voltage alternating current bus, and the new energy alternating current system branches adjust power generation power according to load conditions; each system branch performs energy transmission through a medium-voltage alternating-current bus; the water electrolysis hydrogen production system decomposes water into hydrogen and oxygen through electric energy generated by new energy power generation, and the water electrolysis hydrogen production system adjusts the hydrogen production power by being connected with a medium-voltage alternating-current bus. An active filtering system of the active / passive filtering system branch compensates harmonic waves and reactive power in the power grid, and a passive filtering system filters the harmonic waves; and the station power utilization system provides power for the new energy off-grid operation system.

The present invention belongs to the technical field of refrigeration equipment, and specifically provides a control method for preventing surge of a cold storage host of a cold storage air-conditioning system, including obtaining historical operation data of the cold storage system, the historical operation data including time points when surge occurred in several cold storage systems, extracting time points when surge occurred in several cold storage systems for preprocessing, and inputting them into a trained model, integrating the time points into surge occurrence time periods through the trained model, and marking them as key time periods; obtaining real-time operation parameters of the cold storage system, and sending an adjustment signal to an adjustment module when the real-time time for obtaining the real-time operation parameters is within the marked key time period, sending the adjustment signal to the adjustment module, the adjustment module receiving the adjustment signal and sending a control signal to the cold storage host, and the adjustment module controlling the cold storage host in operation to transfer load to the cold storage host in non-operation, so as to avoid surge caused by unstable operation of the compressor.

The invention discloses a control method, device and equipment of a double-fluorine-pump refrigerating system and a medium. The double-fluorine-pump refrigerating system comprises a first compressor, a first fluorine pump, a second compressor and a second fluorine pump, and the method comprises the steps that the return air temperature and the target set temperature are obtained, and the first compressor, the first fluorine pump, the second compressor and the second fluorine pump are controlled to operate according to the return air temperature, the target set temperature and a preset return air temperature threshold value; and the return air temperature is monitored, and when the return air temperature approaches the target set temperature, the first compressor is controlled to be closed and the operation frequency of the first fluorine pump is increased, or the second compressor is controlled to be closed and the operation frequency of the second fluorine pump is increased. The running frequency of the fluorine pump is increased while the compressor is closed, the refrigerating effect can be improved by increasing the running frequency of the fluorine pump, the situation that the compressor is started again due to the fact that the environment temperature fluctuation is large when one compressor is closed is prevented, frequent starting and stopping of the compressor are avoided, and the service life of the compressor is prolonged.

The application relates to a control method and device of a refrigeration system, the refrigeration system, and a storage medium. The refrigeration system is provided with a magnetic suspension compressor, a freezing pump connected with the magnetic suspension compressor, and a cooling pump connected with the magnetic suspension compressor. The method comprises the following steps: determining whether a target control instruction corresponding to the refrigeration system is received, the target control instruction being used for instructing the starting of the refrigeration system; when the target control instruction is received, controlling a magnetic suspension bearing in the magnetic suspension compressor to perform a floating shaft operation, so that a rotor in the magnetic suspension compressor is suspended; when it is determined that the rotor is in a preset suspension position, controlling the running frequency of the magnetic suspension compressor to be raised; and when it is determined that the running frequency reaches a preset frequency, controlling the freezing pump and the cooling pump to be started. The application avoids the problem that the magnetic suspension bearing in the magnetic suspension compressor is unstable when the magnetic suspension bearing controls the rotor to be suspended after the starting of the freezing pump and the cooling pump is controlled and the starting of the magnetic suspension compressor is controlled, thereby improving the reliability of the starting of the refrigeration system.

The invention discloses an air conditioner transformation module and a machine room air conditioning system, and relates to the technical field of air conditioners, the air conditioner transformation module comprises a cavity shell, a heat dissipation device, a frequency converter and a compressor, the cavity shell is provided with an air inlet and an air outlet, and the interior of the cavity shell communicates with the air inlet and the air outlet; the heat dissipation device is arranged in the cavity shell, and the heat dissipation device drives airflow to form a heat dissipation channel flowing from the air inlet to the air outlet. The frequency converter and the compressor are arranged in the cavity shell, the frequency converter is located on a path of the heat dissipation channel, the frequency converter is electrically connected with the compressor, and the frequency converter is used for adjusting the operation frequency of the compressor. According to the air conditioner transformation module, the frequency converter and the compressor are integrated in the cavity shell, the frequency converter is used for adjusting the operation frequency of the compressor, the problem that energy is wasted due to the fact that a traditional fixed-frequency air conditioner system cannot adjust the operation state according to actual load changes is effectively solved, and the beneficial effects of saving energy and reducing consumption are achieved.

This invention discloses a collaborative method for logic structure partitioning and netlist optimization in multi-core FPGAs, belonging to the fields of electronic design automation and integrated circuits. This invention introduces physical partitioning constraints during the logic synthesis stage, establishing an interconnect-aware synthesis cost function that integrates area, timing, and cross-core interconnect costs. The method includes: pre-partitioning the netlist and anchoring its locations using a hypergraph partitioning algorithm; real-time selection and optimization operators based on dynamically adjusted interconnect penalty coefficients during logic transformation; implementation of suppression mechanisms for high interconnect cost operations; and active logic cloning and topology reconstruction for long-distance cross-core paths. This invention breaks the traditional boundaries between logic synthesis and physical partitioning, effectively reducing the number of cross-core interconnects at the source through closed-loop iteration of micro-optimization and macro-constraints, significantly reducing the risk of wiring congestion, and improving the operating frequency and performance of multi-core FPGA systems.

The present invention provides a split free piston Stirling engine with a common cavity, including at least one group of hot cylinders and at least one group of cold cylinders, at least one group of hot cylinders is provided with a plurality of valve pistons arranged in pairs; at least one group of cold cylinders is provided with a plurality of power pistons arranged in pairs; a single valve piston or multiple groups of valve pistons are provided with a hot cavity, and the valve piston is provided with a first back pressure cavity on the side away from the hot cavity; a single power piston or multiple groups of power pistons are provided with a first cold cavity, and the side of the power piston away from the first cold cavity is a second back pressure cavity connected to the first back pressure cavity. In the above manner, the present invention reduces the vibration intensity of the engine operation, and can increase the operating frequency of the engine, so that the engine can achieve higher output under a more compact structure.

The utility model discloses a kind of automatic adding device for chlorine dioxide generator disinfectant, it is related to chlorine dioxide preparation technical field, including chlorine dioxide generator, water jet, disinfectant storage tank and adding pump, chlorine dioxide generator generates gas, water jet is connected with it to generate disinfectant, flow into the disinfectant storage tank in lower portion by means of gravity, adding pump again transports disinfectant to multiple adding points;Compared with traditional mode, the utility model isolates water jet and adding point of complex working condition, avoids water jet back pressure too high, guarantees its suction capacity, makes chlorine dioxide generator stable operation, and adding pump can overcome delivery resistance, ensure disinfectant stable delivery, simultaneously, the device changes the problem that adding amount is difficult to control due to air mixing in traditional adding mode, by controlling the delivery amount of adding pump, let the chlorine dioxide amount distribution of each adding point be more reasonable, effectively solve the deficiency existing in traditional adding mode, ensure that disinfection effect is stable and reliable.