722results about How to "Reduce the chance of failure" patented technology

The invention discloses a quality of service-based (QoS) Ad Hoc network adaptive node speed on-demand multi-path distance vector routing (AOMDV) algorithm. Four constraint conditions including bandwidth, time delay, hop count and priority are added into a QoS constraint-based routing algorithm; judgment is made and multi-path routing is selected by using an on-demand filtering method; thus the selected route has certain QoS guarantee; and the route is adaptively adjusted according to the change of network topology on the basis of adaptively using the movement speed of a node as a periodic standby route updating rule, so that the problem of failed route maintenance in the conventional signal strength-based route updating mode of an Ad Hoc network is solved. The novel QoS-based Ad Hoc network adaptive node speed multi-path routing algorithm of the invention can be simply and flexibly implemented, and can effectively improve the QoS level of a selected path and the success rate of the selection of the high-priority service routing and improve the validity of the route maintenance and the utilization rate of the network resource.

The invention provides a combined fiber reinforced water-blown polyurethane hard foam composite board, a production method and continuous production equipment thereof. In the combined fiber reinforced water-blown polyurethane hard foam composite board, one or mixtures of more of long glass fibers or long glass fibers and carbon fibers, glass fiber cloth, carbon fiber cloth or short-cut glass fibers are used as fiber reinforced bodies which are alternately distributed in a polyurethane foaming raw material matrix in a layered form. The combined fiber reinforced water-blown polyurethane hard foam composite board has the advantages of high strength, good rigidity and better size stability and high-temperature resistance. In the invention, the continuous production equipment is adopted, thereby the production efficiency and the product quality stability are improved.

The invention provides a prompt control method and system for an indoor unit, the indoor unit and a multi-split central air conditioner. The multi-split central air conditioner comprises at least two indoor units. The prompt control method for the indoor unit is used for the indoor unit and comprises the steps that whether the coil pipe temperature and the outlet air temperature of the current indoor unit are within a working temperature range or not is detected in the operating process; and when the coil pipe temperature and the current outlet air temperature are not within the working temperature range, a dedusting prompt signal for the current indoor unit is sent out. According to the prompt control method for the indoor unit, the dust accumulation condition of a filter screen is detected by detecting the operating parameter change, caused by excessive accumulated dust on the filter screen of the indoor unit, of the indoor unit, a user is effectively reminded to remove dust in time, the heat exchange effect of the multi-split central air conditioner is ensured, and user experience is improved; and the indoor unit applying the method is simple in structure, low in cost and effective in judgment.

The present invention discloses a load balancing method, client side, register server and system. The load balancing method comprises that the client side establishes long connection with the register server, and when application servers needs to be called, node information of the application servers is acquired from the register server, the node information comprising weights of the application servers; and carrying out load balance according to the weights in the acquired node information of the application servers, and sending request information directly to corresponding application servers. According to the technical scheme provided by the present invention, dynamic load balancing can be provided according to connecting / breaking states of the application servers, performance differences of different application servers can be distinguished, and treatment of requests does not require transfer of the register server, thereby reducing network transmitted nodes, raising the transmission efficiency and lowering probability of network failures.

The lifting and translating driving system for manned stage frame has separate lifting driver and translating driver and thus failure probability. It has horizontal guide track on the ceiling, horizontal bogie on the horizontal guide track, and rope from the driver connected to the flying frame through the pulley on the horizontal bogie. It features that two drivers are installed separately onto two overbridges and the ropes from the two drivers are made to pass through the pulley on the horizontal bogie and connect to the flying frame. The present invention with double drivers has the advantages of full use of driving system capacity, easy realization of computerized program control, low failure rate, etc.

The intelligent measure-control system between intelligent electronic device and communication device of 10KV distribution substation comprises: an information treatment unit with a CPU electric connected to a inner memory, an external memory, a CPLD, a quartz-oscillator, and a Watchdog as well as other said units; a first and second communication unit, a measure-control unit, a system maintenance unit, and opposite control software. Wherein, preparing circuits of said information unit, two communication units and maintenance unit on one primary circuit board while the measure-control unit on expander board connected with primary board by flat cable. This invention connects to existed IED to realize collection for measure-control information and remote send to control center for remote control operation.

The invention discloses a method and a system for releasing TCP (Transmission Control Protocol) connection resources. The method comprises the steps that after a TCP connected is established between a terminal and a server side, the terminal sends a heartbeat packet to the server side at a periodic interval; if the server side does not receive the heartbeat packet sent by the terminal within a first predetermined time, a detection message is sent to the terminal by the server side; and when the server side does not receive a response message, the server side releases the TCP resources occupied by the terminal, wherein the response message is the response message of the detection messages. In the method, the server side can close the connection without waiting for two or three times of heartbeat timeout, so as to achieve the purpose of releasing the useless connection resources of the server side as soon as possible. Meanwhile, the failure probability of reconnection with the server after the terminal is restarted when being off the Internet and in power failures is reduced, the login speed of the terminal is increased, and the convenience is brought to the use of the user.

The invention discloses a gas tungsten arc welding (GTAW) system and a welding method thereof. The GTAW system comprises a first welding machine, a second welding machine, a wire conveying device, a first welding torch and a second welding torch, wherein the negative electrode of the first welding machine and the negative electrode of the second welding machine are connected with the first welding torch; the positive electrode of the first welding machine is connected with a workpiece; the positive electrode of the second welding machine is connected with the second welding torch; the first welding machine and the first welding torch form a main loop, so that a main loop arc is formed between the first welding torch and the workpiece; and the second welding machine, the wire conveying device and the second welding torch form a bypass loop, so that a bypass arc is formed between the second welding torch and the first welding torch. According to the method, the resistance heat of a welding wire is fully used for preheating the welding wire, and an arc heating fuse is used, so that the melting efficiency of the welding wire is improved further; due to the arc between a filling wire and a tungsten electrode and a self-adjusting function of the arc, the feeding speed of the welding wire is flexible, so that a wire clamping phenomenon is avoided, and the welding process is relatively stable; and the system and the method are suitable for various metal filling wires.

The invention relates to a sunlight corresponding apparatus, which comprises a solar energy assembly mount, a raised support bracket, a rotating support framework, a left-and-right angle corresponding driving member and a pitch angle corresponding driving member. The solar energy assembly mount is hinged on the rotating support framework that is hinged on the raised support bracket; and accurate tracking on sunlight is realized on the basis of coordinated movements of the left-and-right angle corresponding driving member and the pitch angle corresponding driving member. According to the invention, the apparatus has a simple and reasonable structure; energy consumption for running is low; and the running accuracy is high; besides, the apparatus is easy to control and is convenient for installation and daily maintenance.

The invention relates to a universal material testing machine for a variable rotating speed pump control hydraulic servo loading system, belonging to the field of the material mechanics performance testing equipment, and aiming at solving the problems that the prior hydraulic universal material testing machine which adopts an electro-hydraulic proportional valve as a control system has higher fault rate because the electro-hydraulic proportional valve is sensitive to the oil contamination. The variable rotating speed pump control hydraulic servo loading system is internally arranged below a working platform; a motor is driven by a driver to do rotating movement at variable rotating speed so as to control the pressure and the flow direction of the oil in the outlet of a bidirectional constant flow pump which is connected with the output shaft of the motor and push a hydraulic oil cylinder to do upward loading movement or downward loading movement; the pressure, the displacement and the deformation are transmitted to a control computer by a pressure sensor, a placement sensor and an extensormeter; a control signal is transmitted to the driver by the control computer to realize the closed loop control; and the rotating speed of the motor is transmitted to the driver by a coder to form the inner loop feedback control. The universal material testing machine is used as the metal and nonmetal material mechanics performance testing equipment.

The invention provides an electric car charging equipment detection and maintenance managing method and device. A detection and maintenance plan of each target charging equipment is correspondingly regulated according to the current state of the target charging equipment; and for each target charging equipment in a current failed state, a maintenance scheme corresponding to the target charging equipment is obtained through a maintenance knowledge base according to current operation information of the target charging equipment. By inspecting or maintaining the charging equipment in the abnormal state in time, the failure generation probability of the equipment is decreased, and the equipment utilization rate is increased.

The invention belongs to the field of cleaning, and provides an online cleaning device for a heat exchange tube of a condenser. The online cleaning device is mainly characterized in that: a conventional online cleaning mode is improved; a cleaning mechanism adopts a row of nozzles; the middle part of the row of nozzles is connected with a driving nut floating cavity body, and the end parts of therow of nozzles are connected with guide sleeve floating cavities; and a chemical cleaning agent gallipot is connected in series with a high-pressure water pipeline. The online cleaning device has theremarkable advantages of simple structure, running reliability, convenience for mounting and maintenance, high cleaning speed and good effects; moreover, the online cleaning device can be used for replacing rubber ball cleaning, also can be used together with the rubber ball cleaning and can realize all-round cleaning and the chemical cleaning of important parts.

The embodiments of the invention provide a shifting register unit and a driving method thereof as well as a gate drive circuit and a display device, and relates to the technical field of display, aiming at solving the problems of poor stability, short working life and high power consumption of the existing (gate driver on array) GOA circuit at the same time. The shifting register unit comprises apull-up control module, a pull-up module, a pull-down control module, a pull-down module, a reset module and M de-noising modules, wherein the de-noising modules are connected with a second control terminal, a pull-up node, a signal output end and a first voltage terminal, and are used for pulling the electric potentials of the pull-up node and the signal output end down to the first voltage terminal under the control of the second control terminal. The shifting register unit is used for outputting gate line scanning signals for a gate line connected with the shifting register unit.

The invention relates to a method for welding a chip and a lead wire of a thermal resistor, comprising the following steps: a lead wire is formed; a chip is inserted with a wire and a staged hot-air welding machine is started heating a low-temperature preheating zone, a high-temperature preheating zone, a welding zone and a heat-keeping zone in a furnace to a preset temperature; the wire rows with a good insertion are sent into the low-temperature preheating zone and the high-temperature preheating zone in sequence for preheating; the preheated chip and the wire row are sent to the welding zone; soldering tin in the lead wire is melted due to the hot air from a hot-air welding gun, which ensures the lead wire and the chip are fixedly welded together; the well welded product is then sent to the heat-keeping zone for carrying out an insulation treatment; after the insulation treatment, the product is moved out from the furnace and is naturally cooled to room temperature. The product is then self-checked, washed and dried in the air for entering the next process. In the invention, welding happens after fully preheating and the welded product is slowly cooled after insulation treatment; therefore, the chip does not experience heat shocks and generates micro-cracks; the product has good durability and liability, and decrease of the withstand voltage of the product is small. The invention has good process controllability and can realize progressive production work, thus having high output.

The invention relates to a street lamp with an adjustable irradiation range and a self-cleaning function. The street lamp comprises an illuminating lamp body and a lamp column, and further comprises acleaning mechanism and an adjusting mechanism, wherein the cleaning mechanism comprises a lifting assembly, a stretchable assembly, a cleaning assembly and a lifting seat, the cleaning assembly comprises a driving unit, a base frame, a swinging rod and a cleaning brush, the adjusting mechanism comprises a driving assembly, a driving rod and a base plate, the lifting assembly comprises a second motor, a base, a winch, a connecting wire, a fixed pulley and a connecting rod, and the stretchable assembly comprises an air cylinder, a stretchable frame, a supporting rod and a lifting block. According to the street lamp with the adjustable irradiation range and the self-cleaning function, stains on the illuminating lamp body can be cleared through the cleaning mechanism, so that the influence ofthe stains on the illuminating lamp body is reduced, and the illuminating effect of the street lamp is improved; and moreover, the angle of the illuminating lamp body can be adjusted through the adjusting assembly, so that the irradiation range of the illuminating lamp body is expanded, and the illuminating effect of the street lamp is further improved.

The invention relates to a splitting machine with an adjusting function for film production. The splitting machine comprises a base, two supports, a splitting mechanism and a polishing mechanism, wherein the splitting mechanism comprises a rotating roller, at least two limiting grooves and at least two cutting assemblies; each cutting assembly includes a moving sleeve, blades, a first support rod,a second support rod, a limiting rod, and two connection units; and the polishing mechanism comprises a guide rail, a driving assembly, a moving base, an electromagnet, a permanent magnet, a polishing block and two connection assemblies. According to the splitting machine with the adjusting function, the distance between each blade can be adjusted through the splitting mechanism so that the splitting machine can adjust the width of slit films according to the requirements; the practicability of the splitting machine is improved; and the abraded blades can be polished through the polishing mechanism, so that the sharpness of the blades is improved, the cutting capacity of the blades is improved, and the working efficiency of the splitting machine is improved.

The invention belongs to the technical field of washing machines and particularly relates to a detergent putting structure and a washing machine. The detergent putting structure comprises a water inlet valve, a water inlet pipeline and a putting device, wherein one end of the water inlet pipeline is connected to the water outlet of the water inlet valve, and the other end of the water inlet pipeline extends into the putting device and is provided with a water outlet part; a ventilation structure is disposed on the portion, between the water inlet valve and the water outlet part, of the interior of the putting device and uses hydraulic pressure difference formed when the water inlet valve is closed for draining water remaining in the water inlet pipeline and the water outlet part. The detergent putting structure can effectively overcome the defect that water easily remains in pipes and water outlet parts in putting devices; the structure is simple, the occurrence probability of faults of the washing machine is decreased, costs for production, research and development of the washing machine are reduced at the same time, and a promising market prospect is achieved.

The invention provides a uniprocessing system based on a hardware data transformation technology and a network security isolation method thereof, wherein the system and method have advantages of high security and reliability, simple structure, convenient maintenance, and high efficiency. According to the invention, the system is deployed at a network boundary that needs to protect an inner network from being attached by an outer network and prevent leakage of data of the inner network to the outer network; and unidirectional information inputting from a low-security zone of the outer network to a high-security zone of the inner network in fields including but not limited to government and defense fields as well as unidirectional information transmission from a high-security zone of the inner network to a low-security zone of the outer network in the industrial control field can be realized. On the basis of combination of the uniprocessing system with the hardware network protocol unloading structure, a TCP / UDP application layer data flow at a network input / output terminal is monitored and the application data flow direction and the return data channel width are limited. Therefore, the structure becomes simple, the maintenance becomes convenient, and the operation becomes reliable, and the efficiency is substantially improved; and the system and the method are suitable for the uniprocessing security isolation network boundary with the high bandwidth flow requirement.

The embodiment of the invention discloses a realization method for a supplementary service. With the method, a success rate of supplementary service utilization by a user can be improved and the user experience effect can be enhanced. The method comprises: a terminal initiates a supplementary service request message; the terminal inquires a current IP multi-media subsystem (IMS) service state according to the supplementary service request message; if the IMS service state corresponds to a first threshold value, the terminal executes a supplementary service corresponding to the supplementary service request message by a packet switching (PS) domain; and if the IMS service state corresponds to a second threshold value, the terminal executes a supplementary service corresponding to the supplementary service request message by a circuit switching (CS) domain. In addition, the embodiment of the invention also provides a terminal. The supplementary service can be used normally with the two kinds of channels of the PS domain and the CS domain; and thus the success rate of the supplementary service usage is improved.

The invention relates to a sectional permasyn wind-driven generator which consists of a tower, a gyrorotor connected on the top of the tower via a bearing in the inner cavity of the engine compartment, a stator stand and a central shaft jointed firmly on the gyrorotor a turntable communicated with the central shaft via the bearing, a rotor housing jointed firmly on the turntable, a vane fixed on the turntable via a hub, the uniform distributed stator core inlaid on the peripheral surface of the stator stand, a triphase coil winding on the stator core and a permanent-magnet inlaid on the inner ring surface of the rotor housing. There is an air-gap between the permanent-magnet and the stator core. The stator stand and rotor housing are separated. At least two sections are assembled together via the bolt and the internal screw cylindrical pin.

The invention discloses a CAN (Controller Area Network) bus topology structure comprising a high-speed network and a low-speed network and also comprising a starting network, wherein the starting network respectively carries out CAN communication with the low-speed network and the high-speed network through a gateway; the starting network comprises a vehicle body control module, an intelligent key system controller and a steering wheel lock controller which are respectively connected to a CAN bus of the starting network; and the vehicle body control module is also connected with the CAN bus of the high-speed network. The invention also provides a method for starting a vehicle by using the topology structure. In the CAN bus topology structure and the method for starting the vehicle by using the topology structure, the vehicle body control module, the intelligent key system controller and the steering wheel lock controller relevant to entire vehicle burglary preventing, entire vehicle electrifying and entire vehicle starting are connected to the CAN bus of the starting network, therefore, the failure ratio of the entire vehicle burglary preventing, the entire vehicle electrifying and the entire vehicle starting is effectively reduced; and meanwhile, the vehicle body control module is also connected with the CAN bus of the high-speed network, thus, the failure ratio of the entire vehicle burglary preventing, the entire vehicle electrifying and the entire vehicle starting is further reduced.

The invention relates to a system for sorting articles, which is composed of sorting parts arranged in the horizontally or vertically cycled way, wherein the sorting parts are respectively equipped with transverse belts continuously driven transverse to a transport direction, on which the goods received from a transfer module are transferred to a determined location, a drive of the transverse belts is controlled by a local control unit in the sorting parts, the control unit output the instructions of an electrically-activated driver at the feed place of the articles and / or the designation place of the articles. A simple system is provided, thereby the articles can be reliably and accurately positioned on the transverse belts (3) of the sorting parts (2) at high sorting speed, the local control unit obtains a parameter of executable actions via data transmission before outputting start-stop instructions to the driver of the transverse belts, then the action is activated by a signal transmitted from the outside to the moved sorting parts.

The invention provides a wire stranding detection device and a piece of wire stranding equipment. The wire stranding detection device comprises a first detection unit, a second detection unit, and a control unit. The first detection unit and the second detection unit are arranged on a side of a single stranding body. The first detection unit is used for detecting monofilaments on the stranding body according to a detection starting control command sent by the control unit and sending a monofilament detection signal to the control unit when a monofilament is detected. The second detection unit is used for sending a detection signal indicating that the stranding body rotates a circle to the control unit each time the stranding body rotates a circle. The control unit is connected with the first detection unit and the second detection unit, and is used for sending a detection starting control command to the first detection unit, and judging whether a monofilament on the stranding body is broken or not according to the detection signal indicating that the stranding body rotates a circle, the monofilament detection signal and a preset threshold. The number of the detection units is reduced, the production cost is lowered, and the stability and reliability of detection are ensured to a certain extent.

The invention relates to a flowmeter for a final-stage channel. The flowmeter is characterized in that: after a channel (1) is filled with water, a floater (7) drives a rotating shaft (5) of a rotary angle displacement sensor (4) by a connecting rod (6) to rotate; the rotary angle displacement sensor (4) converts a mechanical signal of a rotary angle position into an electrical signal; by an outgoing line (8) of the rotary angle displacement sensor (4), the electrical signal is transmitted to a flow indicator (9); and a one-to-one corresponding relationship between the deflection angle of the dial pointer of the flow indicator (9) and the water depth in the ditch (1) is established. Flow value, corresponding to a computed or marked corresponding water depth, is carved on the dial of the flow indicator (9) in advance, and by reading a flow scale which is pointed by the dial pointer on the flow indicator (9), a specific flow value is obtained. The flowmeter has the characteristics of low investment, high reliability and convenience for use.

The invention relates to a dispensing device, which comprises a rotary first vacuum absorption device, a second vacuum absorption device synchronously rotating along the first vacuum absorption device as well as a dispenser. The first vacuum absorption device comprises a first vacuum suction nozzle, the second vacuum absorption device comprises a second vacuum suction nozzle, the first vacuum suction nozzle is arranged relative to the second vacuum suction nozzle and then is used for fixing an awaiting dispersing optical element after coordinating with each other, and the dispenser comprises a soft coating head and is used for being abut with the edge of the fixed awaiting dispersing optical element for dispersing. The invention also relates to a dispersing method of the dispersing device, the first vacuum absorption device and the second vacuum absorption device of the dispersing device are used for fixing and rotating the awaiting dispersing optical element, meanwhile, the dispenser with the coating head is adopted to carry on dispersing, thus not only increasing coating area of bonding adhesive on the awaiting dispersing element, but also realizing uniform and stable coating of bonding adhesive on the awaiting dispersing optical element.

The invention relates to a cable testing bus and a switching matrix circuit. The cable testing bus consists of a differential line pair and a double-pole-double-throw switch; the moving contact and the normally closed contact of the switch are connected on the differential line pair; the switching matrix circuit takes the cable testing bus as a main signal path, and comprises two transformers and four cable testing buses; and the coaxial end of the transformer is connected with the port of a testing apparatus, and the symmetrical end of the transformer is connected with the cable testing bus. The switching matrix circuit is characterized by cutting material cost, minimizing odds of testing equipment failure and reducing workload of nonstop calibration. The cable testing bus has the advantages that normal isolation from objective can be realized and the length of the cable testing bus can be controlled on the spot. Furthermore, the cable testing bus has sufficient bandwidth and constant characteristic resistance, and keeps working in matching condition, thereby ensuring measurement accuracy.

The invention discloses a cache cleaning method based on time prediction and directional acknowledgement for a delay tolerant network. By fusing an active cache cleaning strategy with a passive cache cleaning strategy, the method realizes the efficient cache cleaning of a redundant copy of a data packet in the delay tolerant network. Active cache cleaning cancels an invalid copy by using a TTL (transistor-transistor logic) degradation mechanism. In passive cache cleaning, through leading in a transmission control mechanism based on the time prediction and the directional acknowledgement, the validity of the cache cleaning is improved, the time delay of the cache cleaning is decreased, the consumption of a bandwidth and a storage space caused by the multi-copy transmission of acknowledgement information is reduced, and the quick and efficient cache cleaning is realized. When different delay tolerant network models have different requirements on the service quality of the cache cleaning, the method can obtain better network performance through adjusting a transmission scheme in a directional acknowledging mechanism. The method has high practicality and a wide application range, and promotes the utilization rate of the limited cache in the delay tolerant network.

The invention relates to a metagenome sample library construction method and an identification method based on a nanopore sequencing platform and a kit. The method comprises host removal pre-treatmentand sample library construction on human and animal metagenome samples by combining incomplete host removal based on the nanopore sequencing platform so as to sequence and identify the metagenomes. Compared with a conventional process flow, the method is simpler and rapider, meets the reasonable detection demands, omits flows such as library construction PCR in the identifying process, extrudes deviation caused by PCR amplification, and can be used for identifying metagenome microorganisms more truly and accurately.

The invention belongs to the technical field of cable repair, and specifically relates to an insulation repair method for a 10 kV high-voltage cable. According to the method, when the 10 kV three-core cable has a phase core breakdown fault, according to the damaged conditions of insulation and a wire core, three wire core bodies can be maintained without sawing three conductor wire cores of the cable if the conductor wire cores of the cable after breakdown are not obviously damaged, and the 10 kV high-voltage cable "main insulation repair" manufacturing process is employed at a fault wire core insulation breakdown position for rapid repair processing. According to the method, cable wire core insulation with fault breakdown can be rapidly, simply, and effectively repaired, and recovery of power transmission is rapidly achieved.

An air throttle of a small engine comprises a casing, in which disposed a step-by-step motor, an air throttle position sensor ceramic foundation board and a PCB board, an air throttle position sensor rotor is disposed between the air throttle position sensor ceramic foundation board and the PCB board connected with the air throttle shaft directly, an intake pressure sensor pasted at the back the air throttle position sensor ceramic foundation board, a inspection hole disposed at the bottom of the intake pressure sensor, an air inlet temperature sensor at the back of the PCB board electric connected with the PCB board. The air throttle position sensor and the intake pressure sensor are connected electrically with the PCB board via a jumper wire and the step-by-step motor is connected electrically with the PCB board.