192 results about "Load unit" patented technology

The invention provides an intelligent boxing method and system. The intelligent boxing method comprises the steps of obtaining boxing task information and generating a boxing scheme. The boxing task information comprises the size, the weight, the stacking limitation, the number and the priority of each cargo, and the size, the bearing capacity and the occupation state of each loading unit. And under the condition that the size, bearing and stacking constraint conditions are met, a plurality of candidate boxing combinations are generated, the loading utilization rate, the residual space distribution and the shape matching degree are evaluated based on a preset optimization target, and an optimal scheme is selected. The system comprises an input terminal, a task information receiving module, a data storage module, a task and scheme storage module, an operation processing module and a final boxing scheme generation module. According to the method, multi-dimensional constraint matching and weight balance are considered, and space waste and transportation risks are avoided; the maximum greedy algorithm and the adaptive large neighborhood search optimization are combined to realize the combination of automation and experience. The method can be expanded to batch task scheduling and grouping sequencing, so that the calculation complexity is reduced, and the overall boxing and transportation efficiency is improved.

The invention relates to the field of power systems, in particular to a power system load type intelligent identification method, system and equipment. The method comprises the steps that clustering centers of a plurality of load type subgroups are determined respectively, and each clustering center represents a typical load type calibrated in advance; utilizing a dynamic time warping (DTW) algorithm to calculate a DTW distance between the to-be-identified load node and each clustering center; according to the DTW distance obtained through calculation, distributing the to-be-identified load node to a subgroup of the nearest clustering center, and determining the load type of the to-be-identified load node; and periodically scanning and identifying load type changes of the load units in the domain, and updating a load type identification result. The invention further comprises a power system load type intelligent identification system and electronic equipment, the identification accuracy of the multi-type industrial load composite bus is improved, and misjudgment and deviation are reduced. The bus load type can be dynamically identified and changed and can be updated in time.

The invention discloses a multi-scale adjustment demand evaluation method and system adaptive to mountainous area load characteristics, and the method comprises the steps: obtaining the voltage data of a mountainous area power grid, carrying out the preprocessing of the voltage data through different time scales, and obtaining different types of load data samples under multiple time scales; constructing a load characteristic description model of each type of load unit based on the load data sample, and integrating power system data to establish a power distribution network structure topology model; and the load characteristic description model and the network structure topology model are combined to evaluate the power grid regulation requirements of different time scales. According to the method, the operation data of the power grid are accurately acquired, a load characteristic description model of multiple types of units is made based on historical load fluctuation information, the power loss and voltage optimization results of the power grid are comprehensively considered, node power adjustment demand evaluation results are given in different time scales, and reliable data support is provided for subsequent operation adjustment of the power grid.

The invention provides a UPS (Uninterrupted Power Supply) testing device. The UPS testing device comprises a load module and a control module, the load module comprises an adjustable nonlinear load unit and an adjustable linear load unit and is used for changing the waveform distortion degree of the output voltage of the UPS module to be tested; the adjustable nonlinear load unit and the adjustable linear load unit are connected in series and then are connected between the positive output end and the negative output end of the UPS module to be tested; the control module is used for obtaining the waveform distortion degree of the output voltage of the UPS module to be tested, and adjusting the control parameters of the UPS module to be tested when the waveform distortion degree is larger than a first preset threshold value, so that the waveform distortion degree of the output voltage of the UPS module to be tested is reduced to be below the first preset threshold value. According to the method, the waveform distortion degree of the output voltage of the UPS module can be tested through the load module, the control parameters of the UPS module are optimized based on the waveform distortion degree of the UPS module, automatic testing of the UPS module is achieved, and the debugging efficiency of the UPS module is improved.

The present invention belongs to the technical field of actuator testing equipment, and specifically relates to a multi-purpose testing equipment and testing method for an actuator. The testing equipment includes a rotatably mounted gear, a floating disk arranged on the same axis as the gear, a driving unit for driving the floating disk to move axially, at least one slidably mounted rack that can mesh with the gear, and a load unit for applying a load to the rotation of the gear. The gear has a first clamping portion, the floating disk has a second clamping portion that can be coupled with the first clamping portion, and the driving unit controls the coupling of the first clamping portion and the second clamping portion; there is also an axial connection portion for applying a rotational driving force on the axis of the floating disk; when the rack slides away from the gear, the rack disengages from the gear; the rack also has a connecting portion for applying a linear driving force. The testing equipment can adapt to different types of actuators to test their performance parameters under simulated working conditions, and the working conditions can be adjusted as needed to improve testing efficiency and save testing costs.

The invention provides a calibration piece and a calibration method for a multi-port waveguide antenna test system, and a test method and a test system for a multi-port waveguide antenna, in the calibration piece, a positioning structure can ensure the repeatability of each connection, which is the premise of high-precision calibration, and the calibration accuracy is greatly improved. The load unit, the offset short circuit unit and the offset load unit are provided with a plurality of waveguide ports which are the same as those of a tested piece and can be directly butted, the internal structure of the waveguide port of the load unit is an antenna, electromagnetic wave energy can be radiated out instead of being absorbed internally, and high precision and stability of the load standard are guaranteed; according to the method, the reference surface can be determined at the interface of the tested piece, the calibration error model can be directly tested on the reference surface, the accuracy is good, and the solved calibration error model contains all time-varying characteristics of the whole test link during each calibration, so that the method can be used for frequently calibrating according to requirements, and the calibration accuracy is high. Measurement errors caused by temperature drift and link loss can be handled, and the efficiency is high.

The invention provides a method for performing power system load frequency control by using deep reinforcement learning, and relates to the technical field of power system control, and the method comprises the steps: constructing a power system model which comprises a power generation unit, a power transmission network, a load unit and a frequency control device; acquiring historical operation data of the power system, including a load demand record, a power generation output log and a frequency fluctuation condition, and preprocessing the historical operation data of the power system to obtain processed historical operation data of the system; and according to the processed historical operation data of the system, training a deep neural network model, extracting key features of the historical operation data of the system, and predicting a future load demand and a frequency change trend to obtain a prediction result. According to the method, the power system model is fused through deep reinforcement learning, accurate prediction and automatic real-time control of the load frequency are achieved, and the stability and economical efficiency of the power system are improved.

The invention discloses a vacuum simulation test device of an execution mechanism and a test method thereof. The vacuum simulation test device of the execution mechanism comprises a support, a lifting module connected to the support, a load unit connected to a mobile end of the lifting module, and a driving unit for driving the lifting module to execute a lifting action. The load unit is used for loading an execution mechanism to be tested, and the driving unit drives the lifting module to lift under a set torque and synchronously drives the load unit so as to simulate the stress state of the execution mechanism in a vacuum state. The lifting module, the driving unit and the load unit jointly simulate the vacuum condition of the actuating mechanism under the actual working condition, so that off-line detection of the working condition parameters of the actuating mechanism is achieved, and compared with an existing on-line mode, the cost is lower, the consumed time is shorter, and the equipment testing efficiency is remarkably improved.

The chain conveyor comprises a driving unit, a load unit, a balance weight unit, a frame unit and a chain, the driving unit drives the load unit and the balance weight unit to move up and down in the frame unit through the chain, and the load unit and the balance weight unit are connected through the chain and have opposite movement trends. The elevator has the advantages that the weight of the load unit in the elevator is balanced by additionally arranging the counterweight unit, the output capacity needed by the driving unit is reduced, the cost of the driving unit is reduced, meanwhile, the counterweight unit with the adjustable weight is adopted, and the weight of the elevator is adjusted. The elevator is simple in structure and suitable for the working condition environment with large load weight change, the requirement for the output capacity of the driving unit is further lowered, meanwhile, the closed-loop chain connecting mode is adopted, and abnormal sound generated by equipment internal collision or chain non-tensioning in the working process of the elevator is effectively avoided.

The invention discloses a power prediction control system and method for a micro inverter. The power prediction control system comprises a main control unit and a consumption load unit, the main control unit comprises a sampling module and a control DSP, the consumption load unit comprises a load loop arranged at the output end of the transformer, a load R2 and a switch Q are arranged on the load loop, and the switch Q is connected with the control DSP through an isolation driving module. In an initial state, the relay KA is disconnected, and the switch Q is turned on; during sampling detection, a change ratio threshold value is set firstly, the change ratio of voltage and current of the primary side circuit module in rated time is detected, and when the change ratio is larger than the change ratio threshold value, the switch Q is closed, and the relay KA is closed; when the change ratio is smaller than the change ratio threshold value, the switch Q is turned on, and the relay KA is turned off. The load can consume output energy of the transformer when the relay is in an open-circuit state, the frequent switching condition of a traditional relay is improved, and the effective service life of the system is guaranteed and prolonged.

The invention discloses a sheet guiding method and a sheet guiding system.The sheet guiding method comprises a first working state and a second working state, and the first working state comprises the steps that sheets in a sheet combining state in a bearing unit are split, redundant sheets are stored in a cache mechanism, and the bearing unit and the cache mechanism jointly form an access unit; transferring all the sheets in the access unit to a second container; in the second working state, the no-load bearing unit and the no-load caching mechanism form an access unit; transferring the sheets in the second container into the access unit; the sheets in the storing and taking unit are combined, and the sheets in the buffering mechanism and the sheets in the bearing unit are placed in a combined mode; and the working states of the multiple cache mechanisms are correspondingly staggered. In this way, the guide piece efficiency can be improved, and the requirement for high productivity is met.

The invention discloses a cuff-shaped tunnel model loading test device and a test method, solves the problem that a loading unit cannot be tightly attached to a tunnel model in the prior art, and has the beneficial effects that the accuracy of a test result is ensured, and the same or different loads are applied to each side of the tunnel model. According to the specific scheme, the cuff-shaped tunnel model loading test device comprises a model box, and one side of the model box is made of a transparent material; the device comprises a tunnel model, a cuff loading unit is arranged on the tunnel model in an annular fit mode, a plurality of pressure cavities are formed in the cuff loading unit in the annular direction of the tunnel model, and a gas transmission assembly provides gas sources for the pressure cavities so as to apply the same or different loads to the top, the bottom and the side portions of the tunnel model. The two sides of the cuff loading unit are detachably connected, the tunnel model with the cuff loading unit is placed in the model box, and the model box is filled with a filling material.

The application provides an intrinsic safety power transient energy testing device and method, and relates to the technical field of intrinsic safety power. The device comprises a load module, a control unit, a control terminal and a detection unit. The load module has at least one load, and each load has a plurality of load units. The control unit is connected with the load module through an adaptive interface module, and is used for selecting the connected load unit. The control terminal is connected with the control unit through a communication interface, selects a load unit mapping figure through a graphical user interface, and further selects the corresponding load unit through the control unit, so as to load the selected load unit to the measured intrinsic safety power. The detection unit is used for connecting and detecting the measured intrinsic safety power loaded with the selected load unit, and is connected with the control terminal to upload the detection result to the control terminal. The device changes the test environment by selecting different loads, so that the test of the intrinsic safety power transient energy is more comprehensive.

The present invention provides a technique capable of reducing the time required for measurement while achieving high measurement accuracy. A metering device (1) is provided with a load unit (3) that transmits a load to a load cell (2), and a hanger (5) that is connected to a metering container (4) into which an object to be metered is inserted, and is provided with an upper sleeve-type member (61) and a lower sleeve-type member (62), which are elastic bodies, at a connection site between the hanger (5) and the load unit (3), and between the metering container (4) and the hanger (5). Impact load can be buffered, and vibration can be rapidly attenuated.

The present invention proposes a pole switch production line, which includes a conveyor line, an assembly station, a running-in station, a testing station and a material unloading station. The conveyor line is used to convey the pole switch. The conveyor line includes a conveying and positioning unit, a lifting unit and a first transfer unit. The first transfer unit is used to transfer the pole switch. The assembly station includes an assembly workstation and a tightening workstation. The running-in station is located downstream of the assembly station. The running-in station includes a running-in workstation. The testing station is located downstream of the running-in station. The testing station includes a testing workstation. The material unloading station is located downstream of the testing station. By setting the assembly station, the running-in station, the testing station and the material unloading station, the automation level of the pole switch production can be improved. The conveying and positioning unit, the lifting unit and the first transfer unit can improve the automation level of the pole switch positioning and handling. The pole switch production line can improve the automation level of the pole switch production process.

The utility model relates to the technical field of underwater robots, and particularly provides a self-adaptive matching system and an underwater robot. The adaptive matching system comprises a power supply unit; the load unit is connected with the power supply unit, the load unit comprises a first resistor, so that when the power supply unit is connected with the load unit, the first resistor is connected with the power supply unit in parallel, and the power supply unit outputs working voltage required by the load unit. The resistor is connected to the load side, so that when the load unit is connected with the power supply unit, the power supply unit can provide a voltage value matched with the demand of the load unit; the number of watertight interfaces on the power supply unit side is reduced, load units with different voltage requirements are compatible, the circuit of the power supply unit is simplified, the circuit manufacturing cost is reduced, and the risk of water leakage and water seepage of underwater intelligent equipment is reduced.

The invention relates to a sensing and control device (40) and method for a weight measuring device (30) comprising a loading unit for loading material to be weighed. In order to be able to measure accurately with less expensive components, the sensing and control device comprises an analog circuit (50) and a control circuit (60). The analog circuit (50) is configured to receive a weight measuring signal, to convert the received weight measuring signal into a first voltage signal, to subtract a second voltage signal from the first voltage signal when the loading unit is loaded with material to be weighed to generate a third voltage signal representing the weight of the material to be weighed, the second voltage signal representing the weight of at least the loading unit not loaded with material to be weighed. The control circuit (60) is configured to receive the first voltage signal when the loading unit is not loaded with material to be weighed, to convert the first voltage signal into a first digital signal, and to generate a pulse width modulation, PWM, signal having a pulse width, the pulse width representing the weight measured by the weight measuring device when the loading unit is not loaded with material to be weighed, and the control circuit is further configured to convert the third voltage signal into a second digital signal representing a weight measurement of the material to be weighed. The analog circuit (50) is configured to generate the second voltage signal from the PWM signal generated by the control circuit, wherein the voltage level of the second voltage signal is proportional to the pulse width of the PWM signal.

A storage facility (1) having a plurality of storage racks (R) and storage rack levels (3) for storage of load units (T), wherein two storage racks (R) have an aisle (2) between them, each storage rack level having running rails on the opposing faces of the storage racks (R), on which at least one storage and retrieval apparatus (5) may travel the length of the aisle (2). Each storage and retrieval apparatus (5) has a first set of four traveling wheels for traveling along the running rails horizontally along the respective storage rack level (3) of an aisle (2), and has climbing means for vertical movement, along vertical climbing chimneys. The climbing means of each storage and retrieval apparatus (5) include a set of four climbing wheels (16) being retractable between an extended engaging position for interaction with the vertical climbing rails and a retracted non-engaging position while travelling horizontally along the running rails along the respective storage rack level (3) and the storage and retrieval apparatus (5) has a power-take-up device (60) for contacting the bus bars (50) that is coupled to the retraction and extension movement of the climbing wheels (16).

The invention discloses a device and method for testing the bonding performance of an embedded partition plate, and the method comprises the steps: driving a loading unit to move through an electronic universal testing machine, so as to drive a press-in unit which is detachably and fixedly connected with the loading unit to move, and enabling the press-in unit to be pressed into a honeycomb core material in the axial direction of the honeycomb core material; the method comprises the following steps: pressing a honeycomb core material into a press-in unit, driving the press-in unit to continuously apply a load to an embedded partition plate adhered to the interior of the honeycomb core material until the embedded partition plate is completely separated from the honeycomb core material, recording the maximum damage load borne by the embedded partition plate in the process, and calculating the adhesion performance parameters of the embedded partition plate and the honeycomb core material through the obtained maximum damage load, so that the adhesion performance parameters of the embedded partition plate and the honeycomb core material can be calculated. And the bonding effect of the embedded partition plate and the honeycomb core material can be effectively obtained through the bonding performance parameters, so that data support is provided for the design and preparation of a subsequent silencing structure.

The utility model belongs to the technical field of energy storage system power test, and particularly relates to a power test load circuit of an energy storage system and a power test system, the load circuit comprises a short circuit switch module and K load units connected in series, and K is greater than or equal to 2; the high-voltage ends of the serially connected load units are connected with the anode interface, one end of the short-circuit switch module is connected with the cathode interface, and the other end is selectively conducted and connected with the low-voltage ends of the load units; the anode interface and the cathode interface are respectively used for connecting the anode and the cathode of the energy storage system; each load unit comprises a circuit break switch module and a load branch circuit or at least two load branch circuits connected in parallel, each load branch circuit is connected with a load resistor in series, and the circuit break switch module is used for disconnecting the load resistor from the load unit when the load resistor does not need to be put in; load circuits suitable for different voltages and power levels can be formed, the applicability is high, different load circuits do not need to be designed for different voltages and power levels, the cost is low, and the detection efficiency is high.

The invention discloses FTTR slave equipment, which comprises a first socket, a power receiving equipment detection unit, a power grading unit and a load unit, and is characterized in that the first socket is used for accessing power supply equipment; the power receiving equipment detection unit is connected with the first socket and is used for identifying whether the FTTR slave equipment meets the standard POF power receiving or not under the condition that the power supply equipment supplies power to the standard POF; the power grading unit is connected with the power receiving equipment detection unit, the power grading unit is used for identifying the power grade of the FTTR slave equipment and controlling connection and disconnection between the first socket and the load unit according to the voltage input by the first socket under the condition that the power supply equipment supplies power to the standard POF, and the power grading unit is used for identifying the power grade of the FTTR slave equipment and controlling connection and disconnection between the first socket and the load unit according to the voltage input by the second socket under the condition that the power supply equipment supplies power to the non-standard POF. The power grading unit is used for controlling connection and disconnection between the first socket and the load unit according to the voltage input by the first socket; and the load unit is connected with the power grading unit.

1. Name of the product in this design: Load module cover (CP8523). 2. Application of this design: This design is used as a cover for a load unit or power supply. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The present invention relates to the field of data communication technology, and in particular to a bus communication control method, device, equipment and storage medium. When the present invention receives a data broadcast request sent by a target load unit through a main control board, it detects whether the main control board has the master control authority. When the main control board has the master control authority, the master control authority is transferred to the target load unit that needs to broadcast data, so that the target load unit has the authority to broadcast data, and broadcasts and polls directly through the communication main line without forwarding data through the main control board, thereby avoiding the technical problem of cumbersome steps in the prior art when the slave board needs to forward data in a multi-master and multi-slave communication mode, and improving the efficiency of data forwarding.

The invention discloses a method and a system for automatically testing direct current parameters of an integrated circuit, and relates to the technical field of electronic component testing. The tested chip is connected with the test system master controller through the special test clamp, and the test system master controller is internally provided with an adjustable voltage source, an adjustable excitation source and an adjustable load. The test system controls and changes the voltage, excitation and load conditions of the tested device through an automatic test program, and controls the processing unit to collect and record data under the conditions. And after acquisition is completed, the test system analyzes the acquired data and finally automatically generates an integrated circuit direct current parameter test report. The system integrates a control processing unit, an adjustable power supply output unit, an adjustable excitation output unit, a signal exchange unit, an adjustable load unit, a transmission cable and a test clamp.

The application belongs to the field of high-voltage driving circuit, and discloses a level shift circuit and a control method, the circuit comprising an input differential pair, a current limiting module, a load module, a voltage clamping module and a latch module, each module cooperates to complete the conversion of low-voltage signal to high-voltage domain. The input differential pair comprises first and second transistors, the gates of the two transistors receive two input signals respectively, and the sources are connected to the current limiting module; the upper end of the load module is connected to the high-side power supply, and the lower end is connected to the drains of the two transistors respectively; one end of the voltage clamping module is connected to the high-side power supply, and the other end is connected to the drains of the two transistors to form two nodes; the two input ends of the latch module are connected to the two nodes respectively, and the output end outputs the signal after level shift. The application inhibits the inrush current through the current limiting module, avoids the level mis-triggering through the pull-up node of the load unit, limits the node voltage through the voltage clamping unit to protect the low-voltage device from overvoltage breakdown, and shapes and latches the level through the latch module to eliminate the output glitch.

Provided is a refrigeration cycle device having a refrigerant circuit in which equipment is connected by refrigerant piping and a refrigerant circulates, the refrigeration cycle device comprising: a load unit in which the equipment in the refrigerant circuit is mounted, and which is disposed in a target space to be loaded; a refrigerant leakage detection sensor that is disposed in the target space, that detects refrigerant which has leaked with respect to the load unit, and that sends a leakage signal; a load-side control device that is disposed outside the target space, and that controls the equipment in the load unit; and a leakage signal receiver that relays the leakage signal from the refrigerant leakage detection sensor, and that transmits the leakage signal to the load-side control device. The refrigerant leakage detection sensor and the leakage signal receiver are connected by a leakage signal line which is a signal line for transmitting a low-voltage signal, and the leakage signal receiver and the load-side control device are connected by a relay signal line which is a signal line for transmitting a high-voltage signal.

The invention relates to an assembly machining device which is used for feeding a first material part and placing the first material part on a first plate part and comprises a rack. The first material piece is placed on the feeding unit; the discharging unit comprises a transferring mechanism and at least one discharging mechanism, the transferring mechanism is arranged on the rack, and the at least one discharging mechanism is connected with the transferring mechanism; at least one discharging mechanism comprises a mounting plate, a lifting assembly, a connecting base, a rotating assembly and a grabbing assembly, the mounting plate is connected with the transferring mechanism, the lifting assembly is arranged on the mounting plate, the movable end of the lifting assembly is connected with the connecting base, the rotating assembly is mounted on the connecting base, and the grabbing assembly is arranged on the rotating assembly. The movable end of the rotating assembly is connected with the grabbing assembly. According to the automatic assembling device, the efficient and accurate automatic assembling process from the first material piece to the first plate piece can be achieved, the position accuracy can be guaranteed while the assembling efficiency is improved, and therefore the product quality is effectively guaranteed.

The utility model discloses a capacitive load device, which comprises a master control switch used for being connected with an external power supply in a closed state; the switching unit is connected with the master control switch and comprises a plurality of charging load switches capable of switching the switching states, and each charging load switch is configured to be capable of switching multiple switching states; the buffer unit is used for playing a current limiting role at the moment when the external power supply is connected, the buffer unit comprises a plurality of buffer elements, and each buffer element corresponds to one charging load switch; and the load unit is connected with the buffer unit, the load unit comprises a plurality of capacitive loads, and each capacitive load is correspondingly connected to one buffer element. According to the utility model, the charging of the capacitive loads does not influence each other, the compatibility is good, the circuit can be widely applied to various charging scenes, and the instantaneous current impact on the capacitive loads can be reduced by means of the buffer element.

The invention belongs to the technical field of electric mechanism tests, and relates to an electric mechanism balancing detection loading device and method, and the device comprises a loading unit and a control unit. The loading unit is used for loading the tested electric mechanism; the control unit is used for controlling the loading unit to simultaneously acquire the load and the displacement of the tested electric mechanism under load; and whether balancing is carried out or not is judged according to the load and displacement of the loaded electric mechanism. The loading unit comprises a reduction gear motor, a chain, a magnetic powder clutch, a rack, a displacement sensor and a tension and compression sensor; the reduction gear motor drives the magnetic powder clutch through a chain; the magnetic powder clutch drives the rack, one end of the rack is connected to the loading platform after being connected with the displacement sensor, the other end of the rack is connected with the tested electric mechanism, and the other end of the tested electric mechanism is connected to the loading platform after being connected with the tension and compression sensor.

The utility model belongs to the technical field of frequency converter energy feedback, and specifically relates to a four-quadrant energy feedback load test system comprising a power supply unit which comprises a plurality of paths of power supply branches with selectable power; the load unit comprises a plurality of paths of load branches with selectable power; an energy feedback control unit, wherein the energy feedback control unit comprises an AFE four-quadrant controller; and a test connection mechanism. Wherein the input end of the AFE four-quadrant controller is connected with the power supply unit through a filter circuit, and the output end of the AFE four-quadrant controller is connected with the load unit through a direct current bus; and the test connection mechanism is used for mechanically connecting the frequency converter to be tested with a load motor in the load unit. According to loads with different large power, under the condition that full-load testing is achieved, energy generated in the testing process can be fed back to a power grid at the same time to achieve bidirectional flow of the energy, and therefore the purpose of full-load testing of the large-power frequency converter is achieved.