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284results about How to "Simple control logic" patented technology

Laboratory ventilation energy-saving automatic control method and system

The invention relates to the technical field of ventilation control, in particular to a laboratory ventilation energy-saving automatic control method and system, and the method comprises the steps: obtaining laboratory pollutant concentration data and laboratory ventilation quantity data of each time period, obtaining the ventilation demand degree and ventilation efficiency characteristics of each time period, and combining the ventilation demand degree and the ventilation efficiency characteristics to obtain a laboratory ventilation energy-saving automatic control system. Clustering is carried out based on the dynamic change characteristics of the air quality data of all the time periods, and the matching degree is obtained according to the difference between the dynamic change characteristics of the air quality data of the current time period and the dynamic change characteristics of the air quality data of all the historical time periods in the same cluster; according to the matching degree and the laboratory ventilation quantity data of each historical time period in the same cluster, the ventilation quantity demand is obtained, the ventilation quantity demand which should be needed currently can be accurately obtained, and misjudgment of the demand due to fluctuation of a single monitoring parameter is avoided.
Owner:SHANDONG LONTON POWER TECH CO LTD

Screw type sealing mechanism for powder discharging and powder brewing machine

The sealing mechanism comprises a machine body and a powder box assembly placed on the machine body, the powder box assembly comprises a powder storage box and a guide pipe arranged at the bottom of the powder storage box, a powder outlet is formed in the lower portion of the guide pipe, and a powder inlet is formed in the upper portion of the guide pipe; a powder outlet screw rod is arranged in the guide pipe, and the powder outlet screw rod rotates and extrudes powder out of a powder outlet of the guide pipe; in addition, a sealing bottom cover arranged at the bottom of the guide pipe is further included, the sealing bottom cover is provided with a powder outlet and a powder falling opening, and a sealing piece is movably arranged at the bottom of the sealing bottom cover. And a first transmission part for driving the powder outlet screw rod to rotate is also arranged on the sealing bottom cover in a penetrating manner. Therefore, by adopting the lower plane type sealing, the opening angle between the powder outlet and the powder falling opening is 180 degrees, so that the powder falling is smoother, and the powder blocking phenomenon is not easy to occur; and meanwhile, the sealing performance is better, and the risk of powder leakage can be greatly reduced.
Owner:FOSHAN ZHIBEI ELECTRIC APPLIANCE CO LTD

Gas nanometer purifier

The invention relates to a gas nano purifier. The gas nano purifier comprises a mounting seat, the gas storage bin is installed on the installation base and used for storing clean gas, the side wall of the upper portion of the gas storage bin extends upwards to form an installation plate, and a gas path through hole is formed in the middle of the installation plate; the gas-water separator is mounted on the mounting plate and is used for carrying out primary purification on to-be-cleaned gas; the adsorption tower is mounted on the mounting plate and is used for carrying out secondary purification on the to-be-cleaned gas; gas to be cleaned sequentially flows through the gas-water separator and the adsorption tower and then enters the gas storage bin; the adsorption tower is communicated with the gas storage bin through an exhaust pipe; and the exhaust pipe penetrates through the gas path through hole. Through the arrangement, the installation operation is greatly simplified, and the integrity and the space utilization rate of equipment are improved.
Owner:HONGRIJIA DEPURATE FACILITY SCI & TECH CO LTD

Large-load high-precision reset type balance automatic calibration system

The invention discloses a large-load high-precision reset type balance automatic calibration system. Each automatic loading subsystem drives a weight to ascend and descend through a spiral elevator, the gravity of different weights is transmitted to a steel belt through a suspender and transmitted to a loading head, the loading head transmits a load to a calibrated balance, and loading of the multi-component load of the calibrated balance is achieved. The displacement sensor measures the distance change of each position and converts the distance change to obtain the deformation. And the balance attitude is adjusted and reset through the reset subsystem. Each subsystem is compact in structure and clear in function. The reset subsystem maximizes the utilization of the advanced performance of a servo motor, so that the reset precision of linear displacement can be equal to the motion precision of the servo motor, and the reset precision of angular displacement is also improved to a corresponding degree. The control logic of each subsystem including the reset subsystem, the automatic loading system, the displacement measurement system and the like is simple, integrated control is easy to realize, automatic calibration is realized, and the calibration efficiency is greatly improved while manpower is liberated.
Owner:CHINA ACAD OF AEROSPACE AERODYNAMICS

Combined pre-charging circuit of energy storage high-voltage box and control method

The invention relates to a combined pre-charging circuit of an energy storage high-voltage box and a control method, the combined pre-charging circuit of the energy storage high-voltage box is used for establishing electric connection between a battery cluster and an energy storage system, the positive electrode of the battery cluster is connected with the positive electrode of the energy storage system through a positive electrode path, and the negative electrode of the battery cluster is connected with the negative electrode of the energy storage system through a negative electrode path. The combined pre-charging circuit comprises a positive fuse, a negative fuse, a shunt, a pre-charging resistor, a combined pre-charging module and a battery cluster control module; the combined pre-charging module comprises a pre-charging switch group and a main switch group, the pre-charging switch group comprises a first positive pole switch piece and a first negative pole switch piece which act synchronously, and the main switch group comprises a second positive pole switch piece and a second negative pole switch piece which act synchronously; the positive fuse is connected to the positive path; and the negative fuse and the shunt are connected in series to the negative path. The combined pre-charging circuit of the energy storage high-voltage box can greatly reduce the usage amount of electrical equipment, and can reduce the fault rate of the energy storage high-voltage box.
Owner:浙江海得智慧能源有限公司

Cover plate with graphene heating film

The invention relates to a cover plate with graphene heating films, and belongs to the technical field of cover plates, the cover plate comprises a transparent cover plate body and two graphene heating films, the two graphene heating films are arranged on the lower side surface of the transparent cover plate body, and a visible area is formed between the two graphene heating films. Through the arrangement of the graphene heating film, when mist or condensation is attached to the inner side face of the transparent cover plate body, the graphene heating film can generate a large amount of heat, so that the inner side face of the transparent cover plate body is rapidly heated, water vapor on the inner side face of the transparent cover plate body is evaporated, and the definition of the transparent cover plate body is guaranteed; and the observation effect on the internal condition of the cable trench is improved.
Owner:JIANGSU MODUN ELECTRIC

Soft start control circuit and method, resonant transformation control circuit and electronic equipment

The invention discloses a soft start control circuit and method, a resonant transformation control circuit and electronic equipment, and the soft start control circuit comprises a charge feedback circuit which obtains a charge feedback signal through employing a resonant output signal; the voltage feedback circuit is used for obtaining a voltage feedback signal by utilizing a difference value between the power supply output signal and the target reference voltage; the logic control circuit is used for generating a first control signal in a first starting stage; in a second starting stage, generating a second control signal by adopting the maximum preset switching frequency and the adjustable dead time; in a third start-up stage, slope compensation is performed on the voltage feedback signal to obtain a feedback adjustment signal, and a third control signal is generated by using the feedback adjustment signal and the charge feedback signal; the logic control circuit adjusts the inverter AC signal by using the first to third control signals. By means of the mode, the soft start control circuit is high in dynamic response speed, small in starting current and simple in control logic.
Owner:WUHAN MEGMEET ELECTRICAL CO LTD +1

Overvoltage protection circuit and electronic equipment

The invention provides an overvoltage protection circuit comprising a signal acquisition module used for acquiring an electric signal in a charging and discharging circuit; the input end of the charging and discharging control module is electrically connected with the output end of the signal acquisition module, and a control signal is generated according to the electric signal in the charging and discharging circuit; the control end of the overvoltage protection switch is electrically connected with the output end of the charging and discharging control module, the first end of the overvoltage protection switch is electrically connected with external equipment, and the second end of the overvoltage protection switch is electrically connected with a load; and when the control signal is a turn-off signal, the overvoltage protection switch disconnects the electrical connection between the first end and the second end of the overvoltage protection switch so as to disconnect the electrical connection between the external equipment and the load. The invention further provides an electronic device.
Owner:ZTE CORP

Stroke triggering limiting protection device based on rotation of more than 360 degrees

The invention discloses a stroke triggering limiting protection device based on rotation of more than 360 degrees. The stroke triggering limiting protection device comprises a rotation driving assembly structure; the transposition guide structure is provided with a spiral guide groove; the stroke triggering structure comprises a mounting base body and a self-adaptive sliding seat which slides on the mounting base body; the mounting base body is in transmission connection with the rotary driving assembly structure, the self-adaptive sliding seat is arranged in the spiral guide groove, and when the mounting base body does circular motion, the self-adaptive sliding seat performs self-adaptive displacement along the spiral guide groove and does linear motion based on the mounting base body; a travel switch assembly structure; two point positions of linear motion of the self-adaptive sliding seat and a travel switch assembly structure form a signal triggering effect, rotary motion of the rotary driving assembly is converted into linear triggering motion of the self-adaptive sliding seat based on the travel switches, and in one-time one-way rotary motion, each travel switch is only triggered once, so that one-time one-way rotary motion is achieved. And control logic limitation and complexity caused by multiple times of triggering of the travel switch mechanism are solved.
Owner:SAINUO WEISHENG SCI & TECH BEIJING

Efficient and energy-saving power distribution cabinet

The invention discloses an efficient and energy-saving power distribution cabinet, and relates to the technical field of power distribution cabinets. The problem of power control is solved. The power distribution cabinet specifically comprises a cabinet body and a cabinet door rotationally connected to an opening of the cabinet body, a mounting frame used for mounting electrical elements is arranged in the cabinet body, a cooling fan is arranged on the side wall of the cabinet body, and a partition control part used for controlling the power of the cooling fan is arranged in the cabinet body. And the partition control part comprises a cavity hollow shell, a magnetic conductive iron core and a hollow cover plate. By means of the electromagnetic induction principle, the number of connected turns of the secondary coil can be controlled through the position of the electrode tip, so that the power of the heat dissipation fan is controlled, the heat dissipation power of the heat dissipation fan is matched with the heat production efficiency, reliable heat dissipation is guaranteed, the energy-saving effect can be achieved, meanwhile, the multiple sets of heat dissipation fans are arranged and located at different positions, and the heat dissipation efficiency is improved. Therefore, partition control of heat dissipation can be realized according to different temperatures of all areas in the cabinet body, and the use effect is further improved.
Owner:GUODIAN SHUANGYASHAN POWER GENERATION CO LTD

Method and device for controlling radiation air conditioning system and radiation air conditioning system

The invention relates to the technical field of air conditioner control, and discloses a method for controlling a radiation air conditioner system, which comprises the following steps: obtaining dew point temperature of each room in a house where the radiation air conditioner system is located; comparing the dew point temperatures of all the rooms to determine a reference room with the lowest dew point temperature; determining a target control strategy of the radiation air conditioning system according to the dew point temperature of the reference room; and controlling the radiation air-conditioning system to execute the target control strategy. According to the scheme, the time for reaching the set temperature can be effectively shortened, the rapid cooling requirement of each room is met, the comfort degree of all the rooms in the refrigeration mode is ensured, and efficient and accurate water supply temperature control is achieved. The invention further discloses a device for controlling the radiation air conditioning system and the radiation air conditioning system.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1

Diaphragm pump remote control system and control method

The invention discloses a diaphragm pump remote control system which comprises a switch, the switch is electrically connected with a diaphragm pump single pump PLC, a trunk pump PLC and a controller, the diaphragm pump single pump is electrically connected with a teletransmission pressure gauge, a sensor set and an electric valve which are arranged on a diaphragm pump, and a chip is arranged in the controller. Conditions are set in the initialization module in advance, the pressure value and state data of the diaphragm pump are obtained through the input module, and the control module processes the pressure value and the state value in the diaphragm pump. The problem of low working efficiency caused by long contact time in the diaphragm pump control process in the prior art is solved.
Owner:SHAANXI SHENWEI COAL PIPELINE TRANSPORTATION OF GOD

Novel transaction ID coding method applied to AXI protocol

The invention belongs to the field of integrated circuit design, and provides a novel transaction ID coding method applied to an AXI protocol. Address decoding is carried out in advance in an AXI host interface, gating signals of all slaves are compiled into transaction IDs in a one-hot code mode, and therefore coding of all transaction IDs can be completed in the host interface instead of expanding the bit width of ID coding step by step in next-level interconnection. The address decoder is located on the critical path of the interconnection matrix in a traditional interconnection architecture, the address decoder is moved into the host interface, the delay of the critical path in the interconnection matrix is shortened, the dominant frequency of the system can be improved, address decoding is not needed in the interconnection matrix any more, combinational logic in the interconnection matrix can be simplified, and the system reliability is improved. The design complexity is reduced, meanwhile, the data cache position needing to be returned in an order-preserving mode can be closer to a host end, the memory access efficiency is improved, and the problem of a memory wall is effectively relieved.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

New energy fan master control system improvement method and system

The invention relates to the technical field of new energy power generation, in particular to a new energy fan master control system improvement method and system, and the method comprises the steps: collecting fault information of a new energy unit; performing electrical and program design according to the fault information; a fan unit is transformed on site according to electrical and program design; and carrying out performance test and acceptance on the transformed fan set. By improving the master control system of the new energy fan set, including upgrading the protection strategy and the control logic of the master control system, the fault probability of the set is reduced, the equipment maintenance time is shortened, the operation stability of the equipment is improved, the operation data and the state information can be monitored and analyzed in real time, and the management and the control of the operation state of the fan are enhanced. By technically improving the variable pitch system and optimizing the control logic of the variable pitch motor, frequent input of an electromagnetic brake, overcurrent of the motor and failure of a driver are avoided, the overall failure rate of the variable pitch system is reduced, the availability and the generating capacity of a unit are improved, and the electric quantity income is increased.
Owner:HUANENG JIUQUAN WIND POWER CO LTD

Method for dynamically adjusting back pressure of waste gas after-treatment flow channel

The invention relates to the technical field of non-electrical variable control or regulation systems, and discloses an exhaust gas aftertreatment flow channel back pressure dynamic regulation method, which comprises the following steps: acquiring a supply source phase reference signal and establishing cyclic mapping; a fluid channel pressure signal pulse range change rate is extracted to determine a feed-forward factor; determining a pressure signal trough interval as an action window; determining a reference amplitude based on the feedback deviation and using a feed-forward factor for compensation to determine a target adjustment instruction; the adjusting mechanism is driven to move in the action window, so that the response peak value is locked in the trough interval, the adjusting action is locked in the low-energy phase, kinetic energy intervention of fluid pulses on the adjusting mechanism is avoided, and mechanical abrasion is reduced; pulse characteristic feed-forward compensation is utilized to enable an adjusting instruction to sense the trend of a flow field, the response speed is increased while a signal is smoothed, and pressure balance under the transient working condition is maintained.
Owner:MAGNETI MARELLI AUTO PARTS (CHANGSHA) CO LTD

Split type tail gate control system and automobile

The split type tail door control system comprises a first vehicle door and a second vehicle door which are movably arranged between the door opening position and the door closing position of a vehicle body in a hinged mode. And the first control unit identifies the second door lock related signal, and the identification point is a certain calibration position point in the first vehicle door moving track. The invention further discloses an automobile. A certain calibration position point in the running track of the first vehicle door is ingeniously set as the recognition point, and when the first vehicle door runs to the position of the recognition point, the first control unit and the second control unit do not need to share and interact the position information of the first vehicle door and the second vehicle door; and the first control unit controls the first vehicle door to perform corresponding opening and closing or parking actions according to the signal feedback of the second door lock, so that the opening and closing operations of the first vehicle door and the second vehicle door under normal and abnormal conditions are realized to ensure that the second vehicle door and the first vehicle door are quickly closed in place, and the operation is simple and convenient.
Owner:广州弘泽汽车科技有限公司

Pull-push continuum robot

The invention discloses a pull-push continuum robot, and belongs to the technical field of continuum robots. The robot comprises a tendon pulling module, a middle module and a structural backbone pushing module. The middle module is arranged between the tendon pulling module and the structural backbone pushing module; the tendon pulling module transmits tendon driving force to the structure backbone pushing module through the middle module, and continuous robot structure deformation is completed. Tendon driving and rod driving are naturally fused, a complex spatial configuration can be achieved through at least one motor, the tendon driving rigidity is improved, and the robot control difficulty is reduced.
Owner:XIDIAN UNIV

Automatic test capacitor surge test control method and system

PendingCN119535067Aclear accessTest results are clearTesting dielectric strengthCapacitanceTantalum capacitor
The invention discloses an automatic test capacitor surge test control method and system, and the method comprises the steps: setting test parameters according to the surge current test requirements of a to-be-tested tantalum capacitor, carrying out the cyclic charging and discharging test of the surge of the tantalum capacitor according to the set parameters, and obtaining the test result of the surge of the tantalum capacitor. According to the invention, the test result can be rapidly and clearly obtained by carrying out cyclic charging and discharging test on the tantalum capacitor surge, the control process is simple and efficient, the logic is clear, stable and reliable, the main control module is used for control, the structure is stable, the control logic is simple, and the test result can be rapidly and clearly obtained.
Owner:XIAN TAI·E ELECTRONICS CO LTD

Overhead working truck, control method, control device and machine readable storage medium

The invention provides an overhead working truck, a control method, a control device and a machine readable storage medium. The method comprises the steps that an operation instruction is obtained; under the condition that an operation instruction is received, whether the current inclination angle of the frame, the current load of the working platform, the actual operation range of the overhead working truck and the current oil cylinder pressure of the multiple supporting leg structures meet operation conditions or not is sequentially judged according to a preset sequence; and determining that the current inclination angle, the current load and the actual operation range all meet the operation conditions and each current oil cylinder pressure does not exceed the preset pressure range, and controlling the overhead working truck to operate according to the operation instruction. On the premise that the current inclination angle, the current load, the actual operation range and each current oil cylinder pressure all meet the operation conditions, it is judged that the overhead working truck has enough stability, the judgment precision can be ensured through comprehensive judgment of the four conditions, and therefore unnecessary action limitation is avoided, the operation range of the overhead working truck can be greatly widened, and the working efficiency is improved. And the frequent vehicle moving probability is reduced.
Owner:ZOOMLION INTELLIGENT ACCESS MASCH CO LTD

Voltage compensation method, voltage compensation circuit and electronic equipment

The invention discloses a voltage compensation method, a voltage compensation circuit and electronic equipment. The voltage compensation method comprises the following steps: acquiring bus voltage in a power switch circuit and energy storage current in an energy storage compensation circuit; obtaining a bus amplitude limiting voltage target value by using the bus voltage target value and the bias adjustment value, and subtracting the bus voltage from the bus amplitude limiting voltage target value to obtain a bus amplitude limiting voltage error value; performing proportional integral operation and amplitude limiting processing on the bus amplitude limiting voltage error value to obtain an energy storage current target value, and subtracting the energy storage current from the energy storage current target value to obtain an energy storage current error value; performing proportional integral operation on the energy storage current error value to obtain a current regulation output value; and a compensation control signal is obtained by using the current regulation output value and is used for triggering the energy storage compensation circuit to change the charging and discharging states, so that the bus voltage is compensated and regulated to a set threshold range. Through the above mode, the voltage compensation method can effectively stabilize the bus voltage within the set threshold range, and the control logic is simple.
Owner:XIAN MEGMEET ELECTRICAL CO LTD +1

Control method and device for working mode of electric trailer, electronic equipment and medium

The invention discloses an electric trailer working mode control method and device, electronic equipment and a medium. The method comprises the steps that a current state signal of a whole vehicle is obtained; the whole vehicle comprises an electric trailer; according to the current state signal, the required torque of the whole vehicle is determined so as to control the whole vehicle to start; when the whole vehicle is started, the charge state of a power battery of the electric trailer is obtained; according to the charge state, working modes of the electric trailer are determined, and the working modes comprise an auxiliary driving mode, an energy recovery mode, a standby mode and a charging mode. By means of the method, the working mode of the electric trailer is determined according to the charge state of the power battery of the electric trailer, related parameters are few, control logic is simple, cost is low, and the method has excellent economical efficiency.
Owner:ANHUI WEIDU HLDG CO LTD

Drainage device for thoracic surgery department

The invention discloses a thoracic surgery drainage device, and relates to the technical field of drainage. The problems of leakage and pollution are solved. The device specifically comprises a box body, a liquid storage tank and a negative pressure applying mechanism used for applying negative pressure to the liquid storage tank are arranged in the box body, the top of the liquid storage tank is connected with a connecting pipe, and the other end of the connecting pipe is connected with a fixing assembly fixed to the thoracic cavity or the abdominal cavity of a patient through a self-closing quick connector; the fixing assembly comprises a glue sticker, a fixing head fixed to the glue sticker and a guide pipe fixed to the fixing head. The self-closing type quick connector comprises a conical pipe fixed to and communicated with the guide pipe and a plug fixed to and communicated with the connecting pipe. By arranging the self-closing quick connector, on one hand, quick connection and disassembly of the connecting pipe and the guide pipe can be achieved, on the other hand, through conical matching of the blocking ball and the conical pipe, the conical pipe can be automatically blocked in the disassembly process, and therefore bacterial backflow pollution is avoided while accumulated liquid leakage is prevented.
Owner:AFFILIATED HOSPITAL OF NANTONG UNIV

Automatic concrete curing device and method

PendingCN119466363ARealize automatic maintenanceGuarantee the quality of maintenanceService pipe systemsLiquid spraying apparatusWater storageMechanical engineering
The invention discloses an automatic concrete curing device and method.The automatic concrete curing device comprises a spraying mechanism and a water supply mechanism, and the spraying mechanism is used for spraying concrete needing to be cured; the water supply mechanism is used for supplying water to the spraying mechanism and comprises a water bucket, a water inlet pipeline, a water pump and a liquid level controller, and the water bucket is used for storing water; the water inlet pipeline is connected to the water bucket and used for supplying water to the water bucket, and a water inlet electromagnetic valve is arranged in the water inlet pipeline and used for controlling on-off of the water inlet pipeline; the water pump is connected to the bucket and the spraying mechanism and used for pumping water from the bucket and feeding the water into the spraying mechanism; the liquid level controller is used for detecting the water level in the bucket and connected to the water pump and the water inlet electromagnetic valve, and when the liquid level controller detects that the water level is lower than a first preset water level, the water pump is controlled to stop working; when the liquid level controller detects that the water level is higher than a second preset water level, the water inlet electromagnetic valve is closed, and the second preset water level is higher than the first preset water level.
Owner:MUNICIPAL ENVIRONMENTAL PROTECTION ENG CO LTD OF CREC SHANGHAI GRP +1

Image dynamic search window block matching hardware implementation method

The invention discloses an image dynamic search window block matching hardware implementation method, which belongs to the technical field of image dynamic search, and is operated to reduce an image search window and then dynamically adjust the search window according to the position of an image block under the condition of ensuring the image denoising quality. Therefore, the number of SRAMs is reduced, and control logic is reduced in the block matching operation process. According to the method, the block matching part of the BM3D algorithm is realized by adopting a dynamic search window technology and using less SRAM (Static Random Access Memory) hardware, the control logic of the technology is easy to realize, the occupation of hardware resources can be reduced, and the production cost of a chip is further reduced.
Owner:BRITE SEMICON SHANGHAI CORP

Radiation air conditioning system

The invention provides a radiation air conditioning system. The radiation air-conditioning system comprises a radiation air-conditioning plate, an indoor heat exchanger, an electronic expansion valve, a radiation air-conditioning plate electromagnetic valve and a heat exchanger electromagnetic valve; the controller is configured to close the electromagnetic valve of the radiation air conditioner plate and open the electromagnetic valve of the heat exchanger after a starting signal is obtained; when the difference value delta T between the indoor environment temperature value and the preset indoor environment temperature value belongs to a target temperature interval [delta T1, delta T2], when the evaporation temperature is not smaller than the dew point compensation temperature, and if the compressor frequency is not smaller than the preset compressor frequency f2, a radiation air conditioner plate electromagnetic valve is closed, and a heat exchanger electromagnetic valve is opened; if the compressor frequency is smaller than f2 and larger than or equal to f1, a radiation air conditioner plate electromagnetic valve is opened, and a heat exchanger electromagnetic valve is opened; if the compressor frequency is smaller than f1, a radiation air-conditioning board electromagnetic valve and a heat exchanger electromagnetic valve are opened firstly, and if it is detected that the compressor frequency is smaller than f1 again, the radiation air-conditioning board electromagnetic valve is opened, and the heat exchanger electromagnetic valve is closed; f2 is greater than f1, and the control logic is relatively simple.
Owner:HISENSE (SHANDONG) AIR CONDITIONING CO LTD

Powder supply method, three-dimensional printing method and three-dimensional printing system

The invention discloses a powder supply method, a three-dimensional printing method and a three-dimensional printing system. The powder supply method is used for supplying powder used for three-dimensional printing to a powder laying mechanism so that the powder laying mechanism can lay the powder to a construction platform in the laying direction; the two sides, in the laying direction, of the construction platform are each provided with a powder supply groove and a powder supply piece, the powder supply grooves are used for containing powder, and the powder supply pieces are located in the corresponding powder supply grooves and ascend and descend relative to the powder supply grooves. When powder is supplied every time, the powder supply piece on the powder supply side supplies powder through lifting, and the powder supply piece on the powder receiving side receives powder overflowing from the construction platform through descending; the powder supply side and the powder receiving side are the side where the powder laying mechanism firstly passes through the powder supply groove and the side where the powder laying mechanism later passes through the powder supply groove during laying. The powder supply method is adopted in the powder supply process in the three-dimensional printing method. The three-dimensional printing system is used for realizing the powder supply method. By the adoption of the technical scheme, compared with the prior art, the amount of powder needing to be carried by the construction unit is smaller.
Owner:XIAMEN HANIN CO LTD

Light guide piece, lamp and carrier

PendingCN122083271AAchieve independent segment controlSolve the problem of single lighting effectMechanical apparatusVehicle interior lightingLight guideEngineering
The invention relates to the field of lamps, and discloses a light guide part, a lamp and a carrier, the light guide part comprises at least two light guide sections which are arranged in sequence, and every two adjacent light guide sections are connected through a connecting section; wherein each light guide section is provided with a light inlet part and a light outlet part, the light inlet parts are used for allowing light of the light-emitting assembly to enter the light guide sections, the light outlet parts are used for allowing the light of the light guide sections to be emitted, and the connecting sections are configured to limit at least part of the light to be transmitted between the two adjacent light guide sections. The light guide part is designed to be of the structure that the at least two light guide sections and the connecting sections are alternately connected, independent segmented control over all the light guide sections can be achieved, for example, the on-off states of different light guide sections are independently adjusted, or differentiated color output of all the light guide sections is achieved, the problem that a traditional light guide part is single in light emitting effect is effectively solved, and the light guide part is more convenient to use. And diversified and differentiated light emitting requirements are fully met. The connecting sections can effectively limit light transmission between the adjacent light guide sections, and the light crosstalk phenomenon is avoided.
Owner:ZHEJIANG ZEEKR INTELLIGENT TECH CO LTD +1

Emergency release power supply circuit and device

The application relates to an emergency brake release power supply circuit and equipment. The circuit comprises a control module, a switching component, a first power supply circuit and a second power supply circuit; the control module turns on the connection between the first power supply circuit, the second power supply circuit and the corresponding interface equipment through the switching component, so that, in the case of normal power supply, the control module controls the first power supply circuit to supply power to the equipment standby battery, and in the case of monitoring the corresponding signal, the control module controls the first power supply circuit to provide power supply for the equipment control system, and controls the second power supply circuit to supply power to the brake holding coil; in the case of abnormal power supply, if the corresponding signal is monitored, the equipment standby battery provides power supply for the equipment control system through a DC-DC converter, and the control module controls the first power supply circuit to supply power to the brake holding coil through the switching component. Thus, the application simplifies the circuit, realizes the cost reduction through the reuse and normalization of the circuit.
Owner:HITACHI BUILDING TECH GUANGZHOU CO LTD

Rail transit energy-saving system based on flywheel energy storage and rail transit

The embodiment of the utility model discloses a rail transit energy-saving system based on flywheel energy storage and rail transit, the system comprises a flywheel management controller, an AC-to-DC unit and at least two groups of flywheel energy storage systems, and each group of flywheel energy storage system comprises a control unit and a flywheel energy storage unit; the flywheel management controller is electrically connected with the control unit; the control unit is used for being electrically connected with a direct current bus; in the same flywheel energy storage system, the control unit is electrically connected with the flywheel energy storage unit and can control the flywheel energy storage unit to work. The input end of the AC-to-DC unit is used for being electrically connected with a rail transit AC power grid, and the output end of the AC-to-DC unit is used for being electrically connected with a DC bus. Therefore, the control logic of the control unit is simplified, the data processing workload of the flywheel management controller is reduced, the processing period is shortened, and the real-time control response is improved.
Owner:CANDELA (SHENZHEN) NEW ENERGY TECH CO LTD

Control method of swimming pool cleaning equipment and swimming pool cleaning equipment

The embodiment of the invention provides a control method of swimming pool cleaning equipment and the swimming pool cleaning equipment. Relates to the technical field of cleaning equipment control. The swimming pool cleaning equipment comprises a power assembly and a buoyancy adjusting assembly. The buoyancy adjusting assembly comprises a fluid exchange port. The control method comprises the steps that in response to a floating instruction, the power assembly is controlled to operate in a first working state so as to drive the swimming pool cleaning equipment in water to move towards the water surface; under the condition that the swimming pool cleaning equipment is not exposed out of the water surface, the buoyancy adjusting assembly is started, and the buoyancy adjusting assembly continuously operates until the swimming pool cleaning equipment floats on the water surface; when the swimming pool cleaning equipment is immersed in the water, the swimming pool cleaning equipment and the external water body are subjected to fluid exchange through the fluid exchange port; and after the fluid exchange port moves to be exposed out of the water surface, external air is introduced into the swimming pool cleaning equipment through the fluid exchange port. According to the method, rapid switching between the under-pool cleaning mode and the water surface cleaning mode is achieved, and the overall efficiency of cleaning operation is improved.
Owner:INSURFING FUTURE ROBOT TECHNOLOGY (SUZHOU) CO LTD