57results about How to "Avoid long running" patented technology

The invention discloses a modular multi-connection control method and system. The control method comprises the following steps: determining the auxiliary engine capability requirement according to the total capability requirement of an indoor machine set and the best load point of a main engine; calculating the total number of the auxiliary engine compressors required to be input for the operation of the system according to the output capability of a single auxiliary engine compressor; and distributing the total number of the auxiliary engine compressors required to be input for the operationon average to each auxiliary engine, and distributing the parts which can not be distributed on average in each auxiliary engine one by one. According to the invention, through calculating the numberof the compressors required to be operated, the capability output of an outdoor machine set is basically and uniformly distributed to the main engine and each auxiliary engine of the outdoor machine set, the main engine and parts of auxiliary engine compressors are prevented from operating for a long time, the service life of each compressor of the whole machine set is prolonged, and the load energy efficiency ratio of the system part is improved greatly.

The invention pertains to a wheel drive system for an aircraft that features at least one electric motor and at least one fuel cell as energy source for the electric motor, wherein the electric motor is coupleable to at least one wheel of at least one landing gear of the aircraft. The inventive wheel drive system reduces the fuel consumption and lowers the emission of CO2 and pollutants—primarily carbon monoxide and unburned hydrocarbons. Persons, vehicles and other aircraft furthermore are not endangered by a jet blast while the aircraft is taxiing because the main engines do not have to be started until the take-off and landing strip is reached. The operation of the inventive wheel drive system furthermore leads to a reduced noise pollution.

The invention provides a method, a device and a system for performing video monitoring on an outdoor ring main unit. The method provided by the invention comprises the following steps: receiving and storing video images collected through a camera video and transmitted after being digitally processed in the ring main unit; performing image identification on the video images to judge whether the insulating surfaces of ring main cables have discharging trace or condensation; and if so, automatically generating alarm information and informing maintenance staffs. According to the method, the device and the system for performing the video monitoring on the outdoor ring main unit, whether the insulating surfaces of the cables in cable chambers of a plurality of ring main units have discharging trace or condensation can be judged, so that unnecessary power outage times caused by site detection are effectively reduced, the ring main unit is enabled to more safely and reliably supply power for users, and the requirements of the users on continuous power supply are met.

A radiographic image imaging device is provided. The device includes: an acquisition component that acquires battery remaining power amount information representing an amount of power remaining in a battery, which is incorporated in a portable radiographic image imaging device and supplies power to the portable radiographic image imaging device, the portable radiographic image imaging device detecting radiation irradiated at a subject of imaging and generating a radiographic image; a calculation component that calculates a possible standby duration of the portable radiographic image imaging device on the basis of the battery remaining power amount information acquired by the acquisition component and a number of images of the portable radiographic image imaging device; and a display component that displays the number of images and the possible standby duration.

The invention relates to a foundation construction method of large equipment, especially a construction method for split burying of a large T-shaped sleeve bolt, comprising the following steps: setting embedded iron parts on a bedding layer; mounting blot fixing frames above the embedded iron parts; after determining central control point positions of the bolts, welding anchor plates on the blot fixing frames; welding anchor boxes at the bottom of the anchor plates; rechecking the positions of the anchor plates and the anchor boxes, and then hoisting bolt sleeves; exactly assembling the bolt sleeves and the anchor plates, then welding and fixing; hoisting T-shaped bolt rods, fixing the T-shaped heads of the T-shaped bolt rods and the anchor plates by bolts, welding top covers of the sleeves on the upper parts, cleaning sundries surrounding the bolts, checking the welding quality, and rechecking the positions of the bolts. Compared with the traditional hoisting method, the method in the invention can reduce kinds and amounts of approach engineering machines, and can reduce constructors so as to improve working efficiency, reduce construction cost, reduce environment pollution and noise pollution, guarantee green construction and meet the national requirements of energy conservation and emission reduction.

A combine harvester has a chopping mechanism and a spreading mechanism. The spreading mechanism is disposed downstream of the chopping mechanism, mechanically driven by a drive train and includes at least two rotors. The drive train of the spreading mechanism has a belt drive engageable by a clutch and configured to drive a first transmission stage via an output shaft, at least one second transmission stage drivably connected to the first transmission stage by a shaft and a braking device. The first and second transmission stages each have an output shaft for driving one or each of the rotors.

A powder-liquid dental curable material kit composed of (A) a liquid material and (B) a powder material, wherein the liquid material (A) contains (a1) a radically polymerizable (meth)acrylic monomer, (a2) an organic halogen compound and (a3) a radical chain transfer agent; the powder material (B) contains (b1) non-crosslinked resin particles, (b2) a pyrimidinetrione compound and (b3) an organic metal compound; and (Z) a peroxide is blended in at least one of the liquid material (A) and the powder material (B). This curable material kit is capable of reducing the heat generation during the curing of a curable material which is a mixture of the liquid material (A) and the powder material (B) and is not susceptible to the excessive prolongation of the curing time even when the curable material is cured by a brush-on technique, thereby ensuring an appropriate curing time for both of a brush-on technique and a kneading technique.

The invention discloses an air conditioner fan failure detection method. The method comprises the following steps: recording the temperature of a fan coil when the state of the air conditioner fan changes as the change temperature, and recording the temperature of the fan coil a preset time period after the state of the air conditioner fan changes as the continuous temperature; judging whether the temperature difference between the change temperature and continuous temperature is less than the preset temperature difference; and if so, judging that the air conditioner fan fails. The invention also discloses an air conditioner fan failure detection device. The method avoids long-time operation of the air conditioner when the fan fails, avoids the problems of overhigh temperature of the indoor fan coil, poor refrigerating effect or incapability of refrigeration, refrigerant reflux, diluted lubricating oil and the like due to the failure of the air conditioner fan, and prevents the air conditioner from being damaged due to the problem of the fan failure.

A motor-driven compressor for compressing a refrigerant in an air conditioning system includes an electric motor, a swash plate-type compression unit driven by the electric motor, and a cooling channel for returning the refrigerant used by the air conditioning system to a suction chamber of the compression unit. The cooling channel has an upstream section including an armature chamber of the electric motor, and a downstream section extending from the armature chamber to the suction chamber in such a manner that the downstream section is separated from a crank chamber of the compression unit.

The invention provides an energy saving system for an automobile, and belongs to the technical field of automobiles. The technical problems of useless electrical consumption and the like of existing electric equipment for the automobiles are solved. The energy saving system for an automobile comprises a data acquisition device A for detecting the riding information of staff in the automobile, a data acquisition device B for detecting the operating environment of the automobile, a control device for controlling electric equipment of the automobile to energize or deenergize, and a judgment procedure A for judging whether the electric equipment is energized or not. The energy saving system disclosed by the invention has the advantages of reducing the energy consumption of the automobile and the like.

The invention discloses a wind generating set blade load monitoring method. The method comprises the following steps that (a) the pretightening force data of blade root connecting bolts are obtained by utilizing a bolt pretightening force detection device; and (b) a signal processing device analyzes the measured data so as to obtain measured values of the axial load F and the tipping moment M of each blade, the values of the preset limit load of each blade and the allowable load are combined, the load condition and the operation state of each blade are analyzed, the blade state signal is sentto a main control system, and the main control system adjusts a set control strategy according to the corresponding state of each blade. The invention further provides a wind generating set blade loadmonitoring device. According to the wind generating set blade load monitoring method and device, the real-time load condition of each blade and the set operation reliability can be effectively monitored.

A system and methods for reasonable formal verification provides a user with coverage information that is used for verification signoff. The coverage is calculated based on formal analysis techniques and is provided to the user in terms of design-centric metrics rather than formal-centric metrics. Design-centric metrics include the likes of a number of reads from or writes to memories and a number of bit changes for counters, among many others. Accordingly, a setup for failure (SFF) function and a trigger the failure (TTF) function take place. During SFF formal analysis is applied in an attempt to reach a set of states close enough to suspected failure states. During TTF formal analysis is applied, starting from the SFF states, to search for a state violating a predetermined property. If results are inconclusive the user is provided with a design-centric coverage metric that can be used in signoff.

A web is guided in a processing machine by the use of a device which includes a regular device and at least one further web guiding element. These cooperate to subject the web to an offset or to a change in direction. The regular device and the at least one further web guiding element are arranged for mounting on a common guide in a direction that is transverse to the direction of travel of one incoming web.

A radiographic image imaging device is provided. The device includes: an acquisition component that acquires battery remaining power amount information representing an amount of power remaining in a battery, which is incorporated in a portable radiographic image imaging device and supplies power to the portable radiographic image imaging device, the portable radiographic image imaging device detecting radiation irradiated at a subject of imaging and generating a radiographic image; a calculation component that calculates a possible standby duration of the portable radiographic image imaging device on the basis of the battery remaining power amount information acquired by the acquisition component and a number of images of the portable radiographic image imaging device; and a display component that displays the number of images and the possible standby duration.

A method of assembling a part to a workpiece with a combination tool supported on a robot, where a mounting surface of the part is assembled on a target surface of the workpiece including the following steps. (a) Indexing to the assembly position. (b) Picking a part with the part gripper on the part delivery arm from a part supply station. (c) Indexing part delivery and workpiece preparation arms to the preparation position. (d) Simultaneously: engaging the part mounting surface with the part surface preparation module; and engaging the workpiece target surface preparation module with the target surface. (e) Indexing to the assembly position. (f) Using the previously set tool operating axis and calculated tool offsets, engaging the prepared part mounting surface with the prepared workpiece target surface. (g) Releasing the part gripper and withdrawing the tool from the part / workpiece assembly.

Method and device for controlling a vacuum apparatus. A method for controlling a vacuum apparatus that applies vacuum to a vacuum accumulator with a pump of a pneumatically operated servo unit of a motor vehicle. The method comprises the steps of determining the pressure in the vacuum accumulator; determining the ambient pressure; adapting a pump control signal to the ambient pressure; comparing the pressure in the vacuum accumulator with an adapted pump control signal; and outputting a pump actuation signal that is a function of the comparison.

The invention discloses a circulation cooling system. The circulation cooling system comprises a first cooling tank, a second cooling tank, a connecting pipe, a driving pump, a radiator, control valves and a controller, wherein the first cooling tank and the second cooling tank are both used for accommodating coolants; the first cooling tank, the driving pump, the radiator and the second cooling tank are connected in series in sequence; the second cooling tank is also used for connecting to-be-cooled equipment through the connecting pipe; the control valves are arranged on the connection pipe between the second cooling tank and the to-be-cooled equipment; the to-be-cooled equipment is also connected to the first cooling tank through the connecting pipe; the height from the second cooling tank to the ground is higher than that from the first cooling tank to the ground; when the circulation cooling system is in use, the height from the to-be-cooled equipment to the ground is between the height from the second cooling tank to the ground, and the height from the first cooling tank to the ground; the controller is electrically connected to the driving pump and the radiator; and the radiator is used for performing heat dissipation on the coolants flowing through the radiator. By adoption of the circulation cooling system, the operating power of the pump can be lowered, and maintenance can be performed conveniently.

A method and an apparatus for identifying faults in a computer-aided manner for a technical system including a switch and a switch drive is provided. A fault or a disruption in the switch and / or in the switch drive is detected by capturing a temporal profile of a measurement variable of the switch drive. A simulation model is provided for the technical system and a fault situation is set by means of setting values of the simulation model, wherein the setting values are assigned to the fault situation. The technical system is simulated by means of the simulation model, wherein a simulated temporal profile of the measurement variable is captured. The simulated temporal profile is compared with the temporal profile of the measurement variable of the switch drive, wherein the fault situation is assigned to the detected fault on the basis of the comparison.

A wheel drive system for an aircraft that features at least one electric motor and at least one fuel cell as energy source for the electric motor, wherein the electric motor is coupleable to at least one wheel of at least one landing gear of the aircraft. The wheel drive system reduces the fuel consumption and lowers the emission of CO2 and pollutants—primarily carbon monoxide and unburned hydrocarbons. Persons, vehicles and other aircraft furthermore are not endangered by a jet blast while the aircraft is taxiing because the main engines do not have to be started until the take-off and landing strip is reached. The operation of the wheel drive system furthermore leads to a reduced noise pollution.

The invention relates to a foundation construction method of large equipment, especially a construction method for split burying of a large T-shaped sleeve bolt, comprising the following steps: setting embedded iron parts on a bedding layer; mounting blot fixing frames above the embedded iron parts; after determining central control point positions of the bolts, welding anchor plates on the blot fixing frames; welding anchor boxes at the bottom of the anchor plates; rechecking the positions of the anchor plates and the anchor boxes, and then hoisting bolt sleeves; exactly assembling the bolt sleeves and the anchor plates, then welding and fixing; hoisting T-shaped bolt rods, fixing the T-shaped heads of the T-shaped bolt rods and the anchor plates by bolts, welding top covers of the sleeves on the upper parts, cleaning sundries surrounding the bolts, checking the welding quality, and rechecking the positions of the bolts. Compared with the traditional hoisting method, the method in the invention can reduce kinds and amounts of approach engineering machines, and can reduce constructors so as to improve working efficiency, reduce construction cost, reduce environment pollution and noise pollution, guarantee green construction and meet the national requirements of energy conservation and emission reduction.

The invention discloses a small lever type energy-saving ship lift and an operation method thereof. The small lever type energy-saving ship lift is applicable to ship navigation of small water retaining structures. The ship lift comprises an upstream approach channel, an upper lock head, a ship chamber section, a lower lock head and a downstream approach channel which are sequentially intercommunicated with one another from upstream to downstream. The ship lift is characterized in that the ship chamber section comprises a lever, a transmission shaft and two cylindrical type ship bearing chambers, wherein the transmission shaft is of a driving braking structure, and two ends of the transmission shaft are connected to a dam body or a firm foundation rock; the transmission shaft is rigidly connected to the middle part of the lever; the two cylindrical ship bearing chambers are correspondingly connected to two ends of the lever. The ship lift is applicable to one-way navigation or two-waynavigation of a ship, so that the ship navigation efficiency is improved; moreover, the gravitational potential energy of ships at the upstream and the downstream can be converted with each other based on the lever principle, so that the transferring energy consumption is greatly reduced.

The invention discloses a modular multi-connection control method and system. The control method comprises the following steps: determining the auxiliary engine capability requirement according to the total capability requirement of an indoor machine set and the best load point of a main engine; calculating the total number of the auxiliary engine compressors required to be input for the operation of the system according to the output capability of a single auxiliary engine compressor; and distributing the total number of the auxiliary engine compressors required to be input for the operationon average to each auxiliary engine, and distributing the parts which can not be distributed on average in each auxiliary engine one by one. According to the invention, through calculating the numberof the compressors required to be operated, the capability output of an outdoor machine set is basically and uniformly distributed to the main engine and each auxiliary engine of the outdoor machine set, the main engine and parts of auxiliary engine compressors are prevented from operating for a long time, the service life of each compressor of the whole machine set is prolonged, and the load energy efficiency ratio of the system part is improved greatly.

The present invention discloses an inverter device and a method for control of an inverter system. The inverter device comprises an inverter main body and a housing receiving the inverter main body, the two sides of inner bottom portion of the housing are fixed with vertically arranged damping posts, the top portions of the damping posts are fixed with the inverter main body, the inner walls of the two sides of the internal portion of the housing are fixed with vertically arranged slide rails, the sliding ends of the slide rails are fixed with sliding blocks, one side of the top portion of thehousing is hinged with a protection cover, the two sides of the inner bottom wall of the protection cover is fixed with a butting block, the bottom portion of the butting block is butted against thetop portion of the inverter main body, the top portion of the protection cover is provided with a first round opening portion, the bottom portion of the protection cover located at the lower portion of the first round opening portion is provided with a first fan, the bottom wall of the housing is provided with a second round opening portion, and the top portion of the protection cover located at the upper portion of the second round opening portion is provided with a second fan. The inverter device is ingenious in design and reasonable in structure, and the method is reasonable and is suitablefor promotion and usage.

The invention provides a purified water resource sharing device for filling lines. The purified water resource sharing device comprises a purified water producing tank, a water supply pipeline, supply pumps, an electromagnetic valve, a high-liquid-level sensor, a low-liquid-level sensor, a purified water storage tank and a plurality of water consuming pipelines. The lower end of the purified water producing tank is connected with the top of the purified water storage tank by the water supply pipeline, the first supply pump is mounted on the water supply pipeline and is close to the purified water producing tank, the electromagnetic valve is mounted on the water supply pipeline and is close to the purified water storage tank, the high-liquid-level sensor and the low-liquid-level sensor are arranged on the purified water storage tank, the supply pumps and the electromagnetic valve can be turned on and off under the control of the high-liquid-level sensor and the low-liquid-level sensor, the multiple water consuming pipelines are connected to the lower end of the purified water storage tank, and the corresponding second supply pump is mounted on each water consuming pipeline. The purified water resource sharing device for the filling lines has the advantages that sufficient water can be assuredly supplied to the various filling lines, cleaning procedures can be smoothly carried out, accordingly, manual intervention can be reduced, the next-day production continuity and efficiency can be guaranteed, and the safety of the supply pumps can be protected.

The invention provides a robot operation method and device, a storage medium and a robot, and relates to the technical field of robot control. The method is applied to the robot, and the method comprises the steps that when each task is completed, whether the current time is in a preset idle time period or not is determined; timing is started when the current time is in the preset idle time period; when timing is completed, a sleep instruction is sent to a terminal, a sleep mode is entered based on a returned agreement instruction, and the sleep mode is that a control module of the robot is in a closed state; and when the preset idle time period ends and the robot is in a sleep mode, the robot is controlled to enter a working mode based on a power supply control module, and the working mode is that a control module of the robot is in an on state. The problems that an existing robot is high in power consumption and low in working efficiency can be solved.

A method for controlling a negative pressure device (2) of a motor vehicle pneumatic servo unit (3), wherein negative pressure is applied to a negative pressure accumulator (4) by a pump (6), comprising the steps of: determining said pressure in the negative pressure accumulator (p_diff; p_abs); determine the ambient pressure (p_amb); adjust the pump control signals (Ratio_ON, Ratio_OFF) to match the ambient pressure (p_amb); compare the pressure in the negative pressure accumulator Pressure (p_diff; p_abs) and adapted pump control signals (PMP_ON, PMP_OFF); output pump drive signals (PUMP?ON, PUMP?OFF) as a function of said comparison.

The invention discloses a method and system for judging the disappearance of a single-phase grounding fault in a non-effective neutral point grounding system. A three-phase switch is installed at the busbar of a substation, and the occurrence of single-phase grounding is calculated according to the ground-distributed capacitance values ​​of all lines of the distribution network. When a single-phase ground fault occurs, judge the fault phase according to the change of the bus voltage of the substation, and control the corresponding grounding switch at the fault phase bus to close; after a certain short time delay and adjust the adjustable resistance After the resistance value is obtained, the current value of the adjustable resistance branch after the resistance value is adjusted is obtained, and a preliminary judgment is made on whether the actual fault of the line has disappeared; After adjusting the resistance value of the adjustable resistor in the following order, continuously obtain the current values ​​of the adjustable resistor branch under multiple different resistance values, and judge again whether the actual fault of the line disappears.

The invention discloses a wind driven generator high-speed shaft dynamic centering monitoring method. The method comprises following steps that a, a gearbox high-speed shaft is provided with a pulse trigger device and a centering detection device; b, a periodical pulse signal generated by the pulse trigger device is used for triggering the centering detection device of the wind driven generator high-speed shaft to measure centering data; c, every time the wind driven generator high-speed shaft rotates by a circle, centering data with the set time number are measured, and through the wireless transmission manner, the centering data are transmitted to a signal processing module; d, the measured data are analyzed, the actual measuring deviation values delta x, delta y and delta theta are obtained, through comparison of values of the actual measuring deviation and the allowable deviation and the acute measuring deviation and the preset limit deviation, the real-time centering state of a unit is analyzed, the unit centering state is sent to a master control system, according to the corresponding centering state, the unit control strategy is adjusted, early warning or alarm signals are sent out, and unit safety is ensured; the invention further provides a wind driven generator high-speed shaft dynamic centering monitoring system. Through the system and method, the dynamic centeringstate of the high-speed shaft can be effectively monitored, and the unit running reliability can be improved.