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36 results about "Single loop" patented technology

Method for improving shielding lightning protection performance of line in single-loop alternating-current to direct-current scene

The invention relates to the technical field of lightning protection of high-voltage transmission lines, in particular to a method for improving shielding failure lightning protection performance of a line in a single-loop alternating-current to direct-current scene, which comprises the following steps of: configuring positive and negative leads and a return line of a direct-current line by utilizing three lead channels of an original alternating-current line tower, the configuration of the positive and negative wires and the return wire of the DC line comprises the following steps: determining three candidate arrangement modes of the wires: the return wire is located in a tower window, the positive wire is located in the tower window, and the negative wire is located in the tower window; based on the statistical characteristic that 90% of thunder and lightning is negative polarity, shielding failure flashover rates of the direct-current line in the three candidate arrangement modes are calculated by combining shielding failure differences of positive and negative thunder and lightning on the direct-current line; according to the shielding failure flashover rate, the arrangement mode with the lowest shielding failure flashover frequency is screened to serve as the shielding failure lightning prevention optimal wire arrangement scheme in the single-loop alternating-to-direct scene, and the excellent shielding failure lightning prevention effect can be achieved under the condition that an existing iron tower structure does not need to be changed.
Owner:STATE GRID JIANGSU ECONOMIC RES INST

Method for predicting steady-state temperature of three-phase multi-circuit tunnel cable core, and electronic device

The present invention relates to a method for predicting the steady-state temperature of a three-phase multi-circuit tunnel cable core, and an electronic device. The method comprises: establishing a single-phase single-circuit tunnel cable steady-state thermal circuit model, and using the constructed single-phase single-circuit tunnel cable steady-state thermal circuit model to obtain the steady-state temperature of a core of a single-phase single-circuit cable; using a correction method to obtain the steady-state temperature of a cable core arranged in a three-phase single circuit; for a single-phase four-circuit arrangement situation, incorporating the influence of a mutual thermal effect between circuit cables on the temperature of the cable core into equivalent mutual-heating thermal resistance, and introducing the equivalent mutual-heating thermal resistance into the single-phase single-circuit tunnel cable steady-state thermal circuit model, so as to form an improved thermal circuit model to predict the steady-state temperature of a cable core of a single-phase multi-circuit cable; and using a three-phase multi-circuit cable as the combination of single-phase single-circuit, three-phase single-circuit and single-phase multi-circuit, and predicting the temperature of a cable core of the three-phase multi-circuit cable. Compared with the prior art, the present invention has advantages such as quickly and accurately predicting the steady-state temperature of a three-phase multi-circuit tunnel cable core.
Owner:STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER CO +1

A split-type control circuit for aviation obstruction lights

This utility model discloses a split-type control circuit for aviation obstruction lights, belonging to the field of control circuit technology. The control loop can select parameters according to the power of the light fixture. The control circuit includes an AC power supply, a light fixture power switch QF1 and a control power switch QF2, a cyclic time relay KA, and solid-state contactors KM1 and KM2. Through the split-type control design, the flexibility and applicability of aviation obstruction lights are significantly improved. After separating the light fixture from the control loop, the selection of light fixtures is no longer limited by the control circuit. LED lights of different power and colors can be selected according to actual needs, breaking through the limitation of traditional aviation lights with a power of no more than 50W. It can also flexibly adjust the flashing frequency by replacing components, solving the problems of fixed flashing and susceptibility to weather interference in traditional equipment. Through the multi-loop time-sharing control design, the system redundancy is effectively improved. Even if a single loop fails, other loops can still operate normally, making it suitable for scenarios with extremely high safety requirements, such as airports and high towers.
Owner:HEBEI XINHAI CHEM GRP CO LTD

Single circuit landscape pole

ActiveCN115992616BSolve the problem of large pulling rangebig investmentTowerMechanical engineering
This invention discloses a single-loop landscape tower, comprising a tower body, a first ground wire suspension point, a second ground wire suspension point, a first conductor suspension point, a second conductor suspension point, and a third conductor suspension point. The tower body is arch-shaped and includes a first main pole, a second main pole, a first crossarm, a second crossarm, a third crossarm, a fourth crossarm, and a fifth crossarm. The first main pole includes a first segment and a second segment connected sequentially in a vertical direction. The second main pole includes a third segment and a fourth segment connected sequentially in a vertical direction. The fifth crossarm is located between the first and third segments, with its two ends connected to the first and third segments respectively. The first and third crossarms are both located on the side of the first segment away from the third segment and are spaced apart sequentially in a vertical direction. The second and fourth crossarms are located on the side of the third segment away from the first segment and are spaced apart sequentially in a vertical direction. This single-loop landscape tower has advantages such as a novel and unique appearance and reduced investment costs.
Owner:STATE NUCLEAR ELECTRIC POWER PLANNING DESIGN & RES INST CO LTD

Anti-false-alarm water level control system based on dual-redundancy liquid level detection

The invention relates to the field of liquid level instruments, in particular to an anti-false-alarm water level control system based on dual-redundancy liquid level detection, and aims to solve the problems of false alarm and missing alarm risks, single-point failure hidden dangers, unreliable interlocking control and the like due to the fact that traditional water level monitoring adopts a single-loop system. A dual-redundancy detection mechanism formed by the heterogeneous liquidometers is adopted, interactive verification and quantitative evaluation of a redundancy signal processing module are combined, the reliability of water level control is remarkably improved, the false alarm risk is effectively reduced, data acquisition is conducted through the heterogeneous liquidometers with different principles and different installation positions, common cause faults are fundamentally avoided, and the reliability of water level control is improved. The method has the advantages that the accuracy and the representativeness of the final liquid level data are ensured by performing reasonable judgment and interactive verification on feedback signals and intelligently identifying invalid or wrong data, and finally risk assessment is performed based on the accurate final liquid level data, so that common false alarm conditions in the system are greatly reduced.
Owner:BENGANG STEEL PLATES CO LTD

Asynchronous parallel quantum chip automatic calibration software design method and system

The application provides an asynchronous parallel quantum chip automatic calibration software design method and system, comprising: a quantum chip calibration scheduler; two task queues are set in the scheduler: a ready task queue and a waiting task queue; when the tasks in the waiting task queue meet the conditions that can be executed, the tasks are added to the ready task queue; the scheduler schedules the tasks in the two queues in a non-blocking manner; the task is defined as a single loop scanning process of the quantum chip calibration process; for different parameter calibration of a single quantum bit in the quantum chip, the calibration process without a predecessor node in the directed acyclic graph is added to the ready task queue, and the calibration tasks of the remaining nodes are put into the waiting task queue; for calibration of a parameter of multiple quantum bits in the quantum chip, the scanning values of each quantum bit need to be calculated separately; for calibration of different parameters of multiple quantum bits in the quantum chip, the calibration strategy is customized according to the structure of the quantum chip.
Owner:EAST CHINA INST OF COMPUTING TECH

Lightning protection device for a single circuit straight tower

The utility model discloses a lightning stroke protection device of single loop straight line tower relates to power equipment protection technical field. This lightning stroke protection device of single loop straight line tower, including base, the top of base is fixedly connected with lightning arrester, the top of base is fixedly connected with installation subassembly and reinforcing component, through setting up the installation subassembly who constitutes by fixed plate, insert block, spring and fixed block, when installing lightning arrester, only need to press first handle and drive insert block to contract, after loosening handle with connecting piece clamping groove aiming at insert block, spring pushes fixed block and drives insert block to be inserted into clamping groove, and spring continues to provide the thrust and makes insert block and clamping groove keep the close clamping state of joint, avoids the loosening of lightning arrester in the lightning process due to vibration, can complete the fixed connection of lightning arrester and base fast, when disassembling, can separate also by pressing handle, reduces installation maintenance time cost, prolongs the service life of lightning arrester, improves installation efficiency, is convenient for lightning arrester overhaul or replacement.
Owner:ZHONG QING SHI JIANG JIN DIAN LI XIAN LU GOU JIAN CHANG

Hearth negative pressure dynamic compensation control method and device, electronic equipment and storage medium

PendingCN121411512AControlling ratio of multiple fluid flowsCombustion instabilityLoop control
The invention discloses a hearth negative pressure dynamic compensation control method and device, electronic equipment and a storage medium, relates to the technical field of equipment control, and aims to dynamically adjust the proportion and integral coefficient of an induced draft fan regulator in combination with hearth pressure deviation and change rate thereof so as to avoid the limitation that fixed PID parameters are difficult to adapt to dynamic working conditions; in addition, an enhanced feed-forward signal containing an air feeder public instruction and a pressure change rate feed-forward item can be generated, a coupling compensation mechanism under the dynamic working condition is supplemented, meanwhile, the dynamic upper and lower limits of a frequency conversion instruction are calculated according to the load for boundary constraint, and pressure fluctuation caused by instruction abnormity is prevented. The technical problems that combustion instability is caused by hearth pressure fluctuation and improvement of boiler operation efficiency is restricted due to the fact that existing single-loop control adopts fixed PID parameters and a single feedforward signal and lacks a dynamic coupling compensation mechanism can be solved. The technical effects of stabilizing the hearth negative pressure, avoiding combustion instability, improving the boiler operation efficiency and enhancing the hearth pressure control adaptability under the dynamic working condition are achieved.
Owner:INNER MONGOLIA HUANENG THERMOELECTRIC CO LTD WUHAI POWER PLANT

Single-loop lighting control method, circuit and lighting equipment

The invention relates to the technical field of lighting, in particular to a single-loop lighting control method and circuit and lighting equipment. The single-loop lighting control method comprises the following steps: acquiring an input control signal, performing frequency modulation digital coding processing on the input control signal to generate a modulation control signal, and outputting a PWM (Pulse Width Modulation) signal corresponding to the modulation control signal; a PWM signal is adopted to drive an NMOS tube to work so as to transmit a modulation control signal and power supply electric energy to the drive circuit module; and the driving circuit module demodulates the modulation control signal transmitted by the switching action of the NMOS tube to obtain an illumination control signal, and drives the illumination module to work based on the illumination control signal. According to the application, the modulation control signal and the power supply electric energy can be transmitted to the driving circuit module in a single loop formed by connecting the control circuit module, the driving circuit module and the power supply module in series, an independent loop does not need to be additionally arranged for a complex illumination control signal for transmission, and abundant illumination functions can also be realized.
Owner:SHENZHEN LANGHENG ELECTRICAL

Cascade controller calibration

Upon determining calibration parameters for a single-loop controller that minimize a difference between an input to the single-loop controller and a response from the single-loop controller, calibration parameters for a cascade controller are determined based on the determined calibration parameters for the single-loop controller. The cascade controller includes a secondary controller and a primary controller. The calibration parameters for the cascade controller are provided to a second computer in a vehicle.
Owner:FORD GLOBAL TECH LLC +1

Container top-mounted energy storage dual-loop thermal management liquid cooling unit and temperature control method

The application discloses a container top-mounted energy storage double-loop thermal management liquid cooling unit and a temperature control method, and belongs to the field of energy storage thermal management. The unit adopts a top-mounted horizontal layout, integrates an inverter PCS side temperature control loop and a battery Pack side temperature control loop, realizes double-loop heat cooperation through a water-water heat exchanger, and realizes multi-working-condition temperature control in cooperation with a refrigeration cycle. The application does not occupy the ground and internal space of the container, can simultaneously precisely control the temperature of the inverter PCS and the battery Pack, has the functions of automatic heat dissipation, heat recovery and forced refrigeration, solves the problems of large occupied area and single function of the existing vertical single-loop unit, avoids the risk of rodents through top-mounted installation, is suitable for outdoor energy storage scenes, and meets the efficient integration demand of the container energy storage system.
Owner:SHANGHAI ENTROPY NEW ENERGY TECH CO LTD

Single-loop two-branched-chain three-translational parallel robot

The application relates to the technical field of three-dimensional motion mechanisms, in particular to a single-loop two-branch-chain three-translational parallel robot, which comprises a static platform, a dynamic platform, a simple branch chain one and a simple branch chain two, the simple branch chain one is composed of a moving pair one, a rotating pair one, a rotating pair two and a rotating pair three which are sequentially connected in series, the simple branch chain two is composed of a moving pair two, a rotating pair four, a rotating pair five and a rotating pair six which are sequentially connected in series, one end of the dynamic platform is connected with the rotating pair three, and the other end is connected with the rotating pair six, the moving pair one and the moving pair two are arranged on the static platform, and the moving direction of the moving pair one is perpendicular to the moving direction of the moving pair two, the application is composed of only two simple branch chains to form a loop, the required part quantity is small, the cost can be reduced, and the application has obvious advantages such as simple structure, convenient design and manufacture which are composed of only rotating pairs and moving pairs, difficulty in interference between the branch chains, large working space and the like; meanwhile, the application has motion decoupling and symbolic position direct solution.
Owner:CHANGZHOU UNIV

A wind turbine remote cut-out control system

The utility model relates to ship control technical field, specifically disclose a kind of columned wind oil remote cut-off control system, including main distribution board and the direct current distribution board of with the main distribution board electric connection, the isolating switch is arranged on the main distribution board, the fan emergency cut-off switch and oil pump emergency cut-off switch of several with the isolating switch electric connection are arranged on the main distribution board, the direct current distribution board is provided with several remote cut-off buttons, every fan emergency cut-off switch and oil pump emergency cut-off switch are respectively with two remote cut-off buttons electric connection.The utility model adopts redundancy line and columned design, can branch control fan and the cut-off of oil pump, reduce cut-off range, guarantee the power required by ship, once ship occurs, such as single distribution board, single equipment electrical failure or fire or single loop failure or short circuit, at this moment, only need to cut off the fan and oil circuit of single side busbar, avoid the whole ship power failure and lead to the loss of power of ship, good safety.
Owner:ZHUHAI JIAHAI MARINE TECHNOLOGY CO LTD

Heat collection field loop heat transfer medium flow balance adjusting method

The invention relates to a heat collection field loop heat transfer medium flow balance adjusting method which comprises the steps that pressure loss calculation is conducted on a plurality of heat collection loops through fluid resistance characteristic modeling, and loop pressure loss distribution data are obtained; according to the loop pressure loss distribution data, Cv value calculation is carried out with the maximum pressure loss loop as a reference value, and Cv distribution results of the multiple loop inlet adjusting valves are obtained; performing single-loop flow boundary calculation on the process temperature range parameters through a temperature flow inversion algorithm to obtain a Cv deviation allowable range of the regulating valve; and based on the Cv deviation allowable range, the opening degrees of a plurality of loop regulating valves are subjected to graded regulation according to the Cv distribution result, and a loop outlet temperature deviation control result is obtained. According to the invention, the hierarchical valve adjustment of the parallel loop is realized, and the operation stability of the parallel heat collection loop type photo-thermal power station is improved.
Owner:CHINA SHIPBUILDING NEW POWER CO LTD +1

Converter single-loop control method, system and equipment based on all-drive system model

The invention discloses a converter single-loop control method, system and equipment based on an all-drive system model, and belongs to the field of power systems, and the method comprises the steps: carrying out the coordinate transformation of the three-phase voltage and current of a converter and the output voltage of the last moment, and obtaining the two-phase voltage and current, the component of the two-phase output voltage on the d axis is determined as a first output voltage; performing estimation value calculation on the two-phase voltage, the two-phase current and the first output voltage based on the observation parameters, and driving an estimation error to converge to a zero value within a preset time through an observer so as to obtain a disturbance estimation value and a state estimation value of the converter; the disturbance estimation value and the state estimation value are calculated based on the control parameters of the controller established by the all-drive system model to obtain the current voltage, and the control signal is determined according to the current voltage to perform single-loop control on the three-phase converter, so that the disturbance suppression capability of the converter can be improved, and the stable operation of the converter is realized.
Owner:GUANGDONG ELECTRIC POWER SCI RES INST ENERGY TECH CO LTD

Pre-tightening tool, pre-tightening assembly and pre-tightening method for main frame of heavy hydraulic press

The present application relates to heavy hydraulic machine technical field, the present application provides a kind of heavy hydraulic machine main frame's pre-tightening tool, pre-tightening assembly, heavy hydraulic machine main frame and the pre-tightening method of heavy hydraulic machine main frame, wherein pre-tightening tool is used to separately apply set pre-tightening force to each rope, rope is used to single loop around the outside of main frame, pre-tightening tool includes: two clamping tables, one clamping table is used to connect the first end of rope, another clamping table is used to connect the tail end of rope;Two two-link assemblies, each two-link assembly is located between two clamping tables, and the two ends of each two-link assembly are connected to the corresponding clamping table;Driving member, including fixed end and driving end, fixed end is arranged in one clamping table, and driving end is connected with two-link assembly, to drive another clamping table to move to tighten the rope.
Owner:NINGBO DEMA INTELLIGENT MACHINERY CO LTD

Method for improving qualified rate of coked stronger ammonia water based on PID (Proportion Integration Differentiation) control

The invention discloses a method for improving the qualified rate of coked concentrated ammonia water based on PID control, and belongs to the technical field of coking coal chemical industry. The problems that in an existing coking ammonia water recovery process, traditional single-loop PID control is difficult to cope with multivariable and strong-coupling complex working conditions, system fluctuation and control lag are likely to be caused, and therefore the stronger ammonia water product quality and the recovery efficiency are affected are solved. Cascade PID control is carried out on three groups of key parameters including the tower top temperature and the ammonia water reflux quantity of the desorption tower, the tower layer temperature and the steam flow of the desorption tower and the liquid level and the barren liquor temperature of the ammonia absorption tower, and automatic adjustment is carried out with the assistance of a water supplementing adjusting valve, so that quick response and cooperative stability among multiple parameters are realized, the accuracy of process control is effectively improved, and the production efficiency is improved. Finally, the purpose of remarkably improving the qualified rate of stronger ammonia water products is achieved.
Owner:МААНЬШАНЬ АЙРОН ЭНД СТИЛ КО ЛТД

Method for improving phase noise through double-loop mixing

The invention discloses a method for improving phase noise through double-loop mixing, and relates to the technical field of phase noise improvement, and the method comprises the following steps: enabling a reference signal and the output of a controlled voltage-controlled oscillator (VCO) to form a first phase-locked loop, namely a main loop, through a first phase detector PD-A and a first loop filter LF-A, and carrying out the closed-loop locking of the VCO; the output branch of the VCO is sent to a frequency mixer, and the output of the VCO is mixed with a reference signal or a frequency multiplication signal and a frequency division signal of the reference signal to obtain a frequency mixing signal; and inputting the frequency mixing signal into a second phase detector PD-B and forming a second feedback path, namely an auxiliary ring, through a second loop filter LF-B, wherein the feedback quantity of the auxiliary ring is injected into or adjusts the control end of the VCO or is injected into a phase-locked frequency divider ILFD to realize tuning of the VCO. Through a mixing complementary double-ring structure, the balance of the noise suppression capability of a single ring in different offset ranges is broken through, reference noise and parasitic response introduced when the bandwidth of the single loop is expanded are avoided, and meanwhile, the problem that only harmonic injection or single injection path is difficult to cover the whole spectrum is solved.
Owner:HEFEI FANGYUAN MICROWAVE CO LTD

Voltage controller having phase-compensated harmonic regulator

A voltage controller detects a voltage spike in an electrical signal received from an electrical power source. The voltage controller is implemented using a single-loop control system in a stationary reference frame. The electrical signal includes voltage harmonics caused by a non-linear or unbalanced load. The voltage controller includes a phase-compensated harmonic regulator that regulates the voltage harmonics present in the electrical signal and receives a feedback voltage of the single-loop control system. The feedback voltage is a delayed version of an instantaneous voltage of the electrical signal. The instantaneous voltage is sub-transiently stabilized into a steady-state voltage based on the feedback voltage. Sub-transiently stabilizing the instantaneous voltage is performed within a single cycle after the voltage spike is detected. The steady-state voltage has a total harmonic distortion less than a threshold total harmonic distortion and the steady-state voltage has a balanced sinusoidal waveform.
Owner:CATERPILLAR INC

Continuous flow chemical industry production multi-parameter cooperative control method based on DCS

PendingCN121523275AProgramme total factory controlChemical reactionData driven algorithms
The invention discloses a DCS-based continuous flow chemical industry production multi-parameter cooperative control method, and particularly relates to the technical field of industrial process control, comprising the following steps: collecting multi-dimensional parameters in a continuous flow chemical industry production process in real time through a distributed sensor group of a DCS system; the multi-dimensional parameters comprise key parameters for directly determining a reaction state and auxiliary parameters for reflecting an operation environment. According to the method, the dynamic coupling model fusing the chemical reaction mechanism and the data driving algorithm is constructed, the complex incidence relation between key parameters can be accurately quantified and predicted, the double-closed-loop cooperative control architecture is combined, effective division and cooperation of inner-loop rapid response and outer-loop global optimization are achieved, and the method has the advantages of being high in reliability and high in reliability. The problems of multi-parameter strong coupling and control lag are effectively solved, the limitation of a traditional single-loop PID control or simple control strategy is broken through, and it is ensured that the technological parameters can be stabilized within the optimal interval all the time when the production process is interfered by raw material fluctuation, load change and the like.
Owner:ABA CHEM NANTONG +1

Current limited approach rate sliding mode controller and its pmsm single loop control application

The application discloses a current limited approaching rate sliding mode controller and PMSM single-loop control application thereof, the sliding mode controller is a single-loop controller formed by combining a state observer with a current limited approaching law and applying a sliding mode surface; and the sliding mode controller can be applied to a single-loop control system of a permanent magnet synchronous motor. The sliding mode controller in the application can fully exert the advantages of the single-loop control, such as fast response and few parameters, while effectively overcoming the inherent defects that the single-loop control cannot directly control current and is sensitive to mismatched disturbances, thereby constructing a solid algorithm defense line integrating dynamic performance and operation safety for a permanent magnet synchronous motor driving system of special equipment, ensuring that the special equipment can reliably, safely and accurately perform a task under any sudden and severe condition, and thus improving the use effect of the special equipment, such as a police unmanned aerial vehicle, a patrol boat and an electric police car.
Owner:ZHENGZHOU POLICE COLLEGE

Control method for operation stability of water electrolysis hydrogen production system

The invention discloses a method for controlling the operation stability of an electrolytic water hydrogen production system, the system comprises an electrolytic bath, a power supply, a gas-liquid separator, a cooler, a circulating pump and a detection and execution mechanism, and the method comprises the following steps: S1, monitoring the operation state parameters of the system in real time, the operation state parameters at least comprise the temperature of the electrolytic bath, the pressure of the electrolytic bath, the input current density, the differential pressure of the hydrogen side and the oxygen side, the flow of circulating alkali liquor or the resistivity of deionized water; and S2, on the basis of the operation state parameters, a preset system stability evaluation model is established. According to the method, the limitation and interference problems of traditional single-loop control are overcome, the system can integrally make prospective, stable and economical collaborative response when facing internal and external disturbances, global optimal stability and energy efficiency are maintained during steady-state operation, and the stability and efficiency of the system are improved through intelligent fault tolerance and operation point self-adaptive migration under transient and abnormal working conditions. And the robustness, the safety and the full-life-cycle adaptive capacity of the system are remarkably improved.
Owner:SHENZHEN HYDROGEN ENERGY TECH CO LTD

Digital control mode switching method and system

The invention discloses a digital control mode switching method and a digital control mode switching system, and belongs to the technical field of power electronics. Triggering to enter a single-voltage loop operation channel; obtaining a single-loop modulation basic quantity based on the output voltage signal, a preset voltage reference value and a pre-obtained voltage integral initial value; obtaining a switching value control signal based on the single-loop modulation basic quantity, the output voltage signal and the input voltage signal, so as to control the conduction state of the main circuit module based on the switching value control signal; and assigning an inner ring integral initial value based on the single-ring modulation basic quantity, assigning an inner ring current reference value based on the output current signal, and assigning an outer ring integral initial value based on the output current signal. According to the digital control mode switching method and system disclosed by the invention, the stability of output voltage under light load or no load is ensured by realizing stable switching of operation channels.
Owner:SHANGHAI JUNTAO POWER EQUIP CO LTD

An excavator electrical circuit virtual connection fault online detection method and system

This application discloses an online detection method and system for loose connections in excavator electrical circuits. The method includes: identifying the current working condition based on the acquired excavator operating status signal, and determining an adaptive threshold for the working condition, including a detection cycle and a high-frequency energy threshold; based on the detection cycle, calculating five characteristic parameters for each circuit based on the acquired multi-circuit signals, including the proportion of high-frequency energy, signal fluctuation coefficient, equivalent contact resistance change rate, voltage change rate extreme value, and amplitude jump amplitude; performing a preliminary loose connection judgment based on the characteristic parameters and corresponding thresholds, generating a suspected loose connection flag bit for the corresponding circuit, and obtaining a preliminary loose connection judgment result; based on the preliminary loose connection judgment result, performing a secondary verification based on the electrical topology to distinguish between loose connections at common nodes and single-circuit loose connections; if it is a single-circuit loose connection, determining the type of single-circuit loose connection based on the five characteristic parameters, namely, a contact oxidation type loose connection, a contact insufficient pressure type loose connection, or a terminal loose type loose connection.
Owner:XCMG EXCAVATOR MACHINERY CO LTD

Braking system for a motor vehicle

The invention relates to a braking system in which a master brake cylinder is designed as a single-circuit system and an electric pressure regulator is designed as a dual-circuit system.
Owner:CONTINENTAL AUTOMOTIVE TECHNOLOGIES GMBH

ATC System and Control Method for Chip Testing

PendingCN122307302AOperating temperatureSingle loop
This application relates to an ATC system and control method for chip testing. It acquires the temperature value collected by a temperature acquisition device in a heat-conducting structure in real time, and analyzes the initial and real-time errors based on the set operating temperature. When the cascade adjustment conditions are met based on the initial and real-time error analysis, the thermal compensation power of the heat-conducting structure and the refrigerant flow rate of the circulation loop are cascaded. When the preset cascade adjustment conditions are not met, the thermal compensation power of the heat-conducting structure is adjusted in a single loop. Cascade adjustment of the thermal compensation power of the heat-conducting structure and the refrigerant flow rate of the circulation loop when the initial and real-time errors meet the cascade adjustment conditions effectively solves the problem of large overshoot caused by excessive instantaneous power during chip testing, thus improving test reliability.
Owner:HANGZHOU CHANGCHUAN TECH CO LTD

Dynamic temperature control method and device, electronic equipment and storage medium

The invention discloses a dynamic temperature control method and device, electronic equipment and a storage medium, load parameters related to main steam temperature control are acquired to establish a load change prediction model, primary and secondary desuperheating water control valve control parameters are adjusted according to an output load change trend, and limitation of a fixed parameter PID is avoided; a feed-forward compensation channel of first-stage attemperation water to second-stage temperature is designed, a compensation coefficient is calculated in combination with load change characteristics, and dynamic compensation is applied to capture nonlinear characteristics of a load change rate and acceleration; a cascade and single-loop differential control strategy is adopted for the second-stage desuperheating water section, and the main steam temperature difference on the left side and the right side is monitored to execute corresponding control, so that the adjustment pertinence and precision are improved; the technical effects that the main steam temperature control precision is improved, the overshoot and undershoot phenomena during sudden load change are reduced, the adaptability to nonlinear load change is enhanced, and the main steam temperature on the left side and the right side is kept stable are achieved.
Owner:INNER MONGOLIA HUANENG THERMOELECTRIC CO LTD WUHAI POWER PLANT

Streaming engine with short cut start instructions

ActiveUS12675314B2Digital dataEngineering
A streaming engine employed in a digital data processor specifies a fixed read only data stream recalled memory. Streams are started by one of two types of stream start instructions. A stream start ordinary instruction specifies a register storing a stream start address and a register of storing a stream definition template which specifies stream parameters. A stream start short-cut instruction specifies a register storing a stream start address and an implied stream definition template. A functional unit is responsive to a stream operand instruction to receive at least one operand from a stream head register. The stream template supports plural nested loops with short-cut start instructions limited to a single loop. The stream template supports data element promotion to larger data element size with sign extension or zero extension. A set of allowed stream short-cut start instructions includes various data sizes and promotion factors.
Owner:TEXAS INSTRUMENTS INC

Control method of air conditioner, electronic device and air conditioner

PendingCN122359864AFrostProcess engineering
This invention relates to a control method, electronic equipment, and air conditioner for an air conditioner. The control method includes: the air conditioner operating in heating mode and executing a frost uniformity control program; the frost uniformity control program includes: acquiring system operating condition parameters and frost state parameters for each refrigerant flow path; coordinating and adjusting the control parameters of the air conditioner based on the system operating condition parameters and frost state parameters to achieve a target uniformity of frost on the surface of the outdoor heat exchanger; and entering a defrost program when the frost thickness on the outdoor heat exchanger reaches a preset defrost threshold. This embodiment achieves uniform frost growth in all areas from the source of frost formation, significantly improving overall frost uniformity, avoiding excessive local frost accumulation, effectively improving the problem of excessively thick local frost in traditional single-loop systems, providing a good foundation for subsequent efficient defrosting, reducing defrosting difficulty and system losses, and achieving energy-saving effects.
Owner:ZHUHAI GREE INTELLIGENT EQUIP CO LTD

Business processing method and device, equipment, medium and program product

The invention provides a business processing method and device, equipment, a medium and a program product, relates to the technical field of Internet, and can solve the problem of poor business processing efficiency and system stability. According to the specific technical scheme, batch task information is received, the batch task information comprises at least two data processing requests, and each data processing request comprises a data identifier used for identifying one business account; all the data processing requests are verified; if all the data processing requests are verified successfully, a batch processing interface is called, and all the data processing requests are traversed; in the single-layer cycle, obtaining corresponding target associated data from a preset data mapping structure based on a first data identifier in the current data processing request; and based on the target associated data, performing service logic processing on the current data processing request, and based on a result of the service logic processing, updating data of a service account corresponding to the first data identifier. The method is used for processing the business account data.
Owner:CHINA CONSTRUCTION BANK +1