2160results about How to "Does not affect normal work" patented technology

The invention discloses a distributed server load balancing method based on the SDN. Through the advantage of the SDN structure where a control face and a forwarding face are separated, a user access request arrives at a certain device on the SDN, then, an SDN controller dynamically dispatches the user access request to an appropriate server according to the network running state, and therefore server load balancing is achieved. By means of the distributed server load balancing method, comprehensive fault tolerance can be achieved from the access process and the forwarding process to the service process, the total load bearing capacity of a server cluster is brought into full play, and running expandability and running reliability of the whole system are improved.

The invention specifically relates to a current collector and application thereof, and a pole piece and a battery using the same, belonging to the field of batteries. The current collector of the invention comprises an insulating layer and a conducting layer, wherein the insulating layer is used for bearing the conducting layer; the conducting layer is used for bearing an electrode active materiallayer; and the normal-temperature film resistance Rs of the conducting layer is no less than 0.016 omega / sq and no more than 420 omega / sq. The current collector provided by the invention can greatlyincrease the short-circuit resistance of the battery in cases of abnormal conditions, allows short-circuit current to be greatly reduced, so heat produced by short circuits is greatly lowered, and heat produced at sites where internal short circuits occur can be totally absorbed by the battery; and thus, the influence of short-circuit damage to the battery is limited to certain points, only pointcircuit break occurs, and the normal operation of the battery in a short period of time is not affected.

The invention discloses a configuration, refreshing and program upgrading integrated system for an SRAM (Static Random Access Memory) type FPGA (Field Programmable Gate Array), belongs to the technical field of aerospace and aims to solve the problem of SEU (Single Event Upset) of the SRAM type FPGA in a spatial irradiation environment. The configuration, refreshing and program upgrading integrated system has a capability of performing program upgrading on the SRAM type FPGA which is in on-orbit work for a long time. The configuration, refreshing and program upgrading integrated system comprises an on-site programmable logic gate array SRAM type FPGA, a comprehensive management anti-fuse FPGA, a configuration program storage chip PROM (Programmable Read-Only Memory), an on-orbit upgrading program storage chip EEPORM (Electrically-Erasable Programmable Read-Only Memory) and an RS422 interface chip. The configuration, refreshing and program upgrading integrated system disclosed by the invention can be used for effectively solving the problem of the SEU of the SRAM type FPGA which is in on-orbit work for a long time and correcting the SEU and single event accumulation inside the SRAM type FPGA without being shut down, also has the function of on-orbit program upgrading of the SRAM type FPGA, and has the characteristics of instantaneity, reliability, flexibility, universality and low cost.

The related data bus bridge comprises: a physical interface connected with external standard device to transmit data according to different logic channel, a data link unit to execute HDLC protocol for data on different logic channel, a FIFO unit for data buffer, an arbitrating mechanism unit to ensure physical interfaces exclusive visit the share data in memory and make the data read and write accord with protocol specification, and a DMA control unit to build high-speed data transmission between physical interface and physical memory. This invention is real-time and reliable, and fit to negotiate control device and monitor device.

The invention discloses a virtual machine snapshot management method and a virtual machine snapshot management system of a cloud computing platform. The method comprises the following steps of: mainly performing the following steps when establishing a virtual machine snapshot for a virtual machine of a cluster node: a preparation step, if the virtual machine is in a running state, pausing the virtual machine by a control node of the cloud computing platform by calling a virtual machine management tool and establishing a memory snapshot of the virtual machine; disk snapshot step, calling a virtualization management tool to establish the disk snapshot of the virtual machine by the control node; and a subsequent processing step, if the virtual machine is in the running state, calling the virtualization management tool to restore running of the virtual machine by using the established memory snapshot. The invention provides good user snapshot management experience and guarantees consistency and stability of the cloud computing platform.

A dumachine control system of coaxial pilotless heligyro comprises two sets of ground units and one set of heligyro unit. It is featured as forming said ground unit by control machine platform, flying control table , remote control coder, remote detection decoder, ground control computer, control emitter / receiver and control antenna; forming heligyro unit by control antenna, control emitter / receiver, control video processing combination and low speed signal regulator.

The invention relates to an online system for testing the essential resistance and the voltage of a single cell of a fuel cell stack, comprising a testing unit, a programmed AC driving source, a blocking condenser, an electric current detecting module, a keyboard, an LCD unit and a storage unit, which is characterized in that the programmed AC driving source is serially connected with the blocking condenser and then parallel connected with an output end of a fuel cell, and the testing unit is used for controlling the frequency and the amplitude value of the AC driving source periodically through a communication interface and collecting the voltage and the electric current signals of each single cell in order for computing essential resistance; the electric current detecting module, the keyboard, the LCD unit and the storage unit are respectively connected with the testing unit which communicates with a main controller of galvanic pile and other equipments through the communication interface. The invention has compact and legible circuit, high reliability, moderate cost, high measurement precision, quick measurement speed and ample and scalable interfaces, and the invention satisfies the requirements of the real-time and high-precision testing of the essential resistance and the voltage of the single cell of the fuel cell stack.

The invention discloses a storehouse cleaning machine for cement storehouses. The storehouse cleaning machine for the cement storehouses comprises a base, a drill rod, a hanging mechanism, a storehouse cleaning mechanism and a swing mechanism which is used for controlling rotation of the storehouse cleaning mechanism; the hanging mechanism and the swing mechanism are arranged on the base; the hanging mechanism is connected with the storehouse cleaning mechanism through the drill rod. The storehouse cleaning machine for the cement storehouses has the advantages of enabling the storehouse cleaning mechanism shaking to be small during the storehouse cleaning process and being high in cleaning efficiency due to the fact that the hanging mechanism is connected with the storehouse cleaning mechanism through the drill rod; being applicable to various cement storehouses with different diameters, capable of being applied to cement storehouse wall with slope, convenient to utilize and wide in application range due to the extensible storehouse cleaning mechanism; being simple in structure, safe and reliable and suitable for industrialized application.

The invention provides a remote non-interference updating system and a remote non-interference updating method for vehicle control. The remote non-interference updating system comprises a remote control terminal, a remote control server, a control server and a vehicle controller; the remote control terminal receives update files and configuration parameters from the remote control server, detects whether the vehicle controller is in an idling state or not and sends an update control instruction to the same, and controls to switch the vehicle controller into a remote programming or parameter configuration mode by responding to the update control instruction if the vehicle controller is in the idling state. The remote control server acquires the update files and configuration parameters and transfers the same to the remote control terminal after receiving an update file acquisition instruction from the remote control terminal. The remote control terminal and the vehicle controller are in communication through a CAN bus to realize remote updating without a great deal of manual operation, and accordingly work of the vehicle controller is simplified relatively.

The invention discloses a camera shooting component. The camera shooting component comprises a first transparent part, a camera, a flashlight and a light blocking part, wherein the first transparent part comprises a first holding hole and a second holding hole; the camera is held in the first holding hole, the flashlight is held in the second holding hole, and the light blocking part is held in the second holding hole and sleeved on the flashlight so as to shield the light ray emitted from the flashlight to enter the camera. The invention further discloses a mobile terminal. The light blocking part is arranged between the flashlight and the second holding hole so as to isolate the flashlight from the camera held in the first holding hole; the light ray emitted by the flashlight in working is absorbed or reflected by the light blocking part, and cannot enter the first transparent part from the edge of the second holding hole; the light ray cannot be transmitted to the camera, the channeling light is avoided, the flashlight cannot influence the normal work of the camera, the shooting effect of the camera shooting component is improved, the shot picture and video frame are real, and the user experience is improved.

The invention relates to an unlocking device of a drawer panel. The unlocking device of the drawer panel comprises an adjustable seat which is arranged in the side plate of the drawer. The panel of a drawer is connected with the adjustable seat through connecting pieces. Locking mechanisms which are used for locking the connecting pieces is arranged on the adjustable seat. Each locking mechanism comprises an eccentric cam. The unlocking device of the drawer panel is characterized in that the panel is connected with more than two connecting pieces, more than two locking mechanisms are arranged on the adjustable seat, and a gear unlocking mechanism which is used for simultaneously unlocking the more than two connecting pieces is additionally arranged on the adjustable seat; and the gear unlocking mechanism comprises a movable piece and at least one unlocking gear, a gear rack is arranged on the movable piece corresponding to the unlocking gear and the movable piece is connected with the unlocking gear through the gear rack in a driving way. Since the unlocking gear is matched with the gear rack arranged on the movable piece to realize the simultaneous unlocking and disassembling of the panel and the normal working of the locking mechanism is not influenced by the length of the panel connecting pieces and the synchronism and asynchronism of inserting the panel connecting pieces, the goals of synchronously and asynchronously locking the entire drawer panel and synchronously unlocking the drawer panel are really realized and the flexibility is very high.

The invention discloses an intelligent video image quality automatic analysis system and method. The system comprises a control device, a video analysis device and a video matrix connected with an image acquiring device, and is characterized in that the control device is communicated with the video analysis device and used for sending an instruction request from the video image analysis to the video analysis device, receiving the analysis result from the video analysis device and displaying the analysis result to a subscriber; and the vide analysis device is communicated with the video matrix and used for obtaining a video image from the video matrix according to an instruction from the control device, analyzing the video image to obtain the analysis result of the video image, and transmitting the analysis result of the video image to the control device. The system is high in measurement precision, good in repeatability and consistency, high in system cost performance and good in reliability. An indicator algorithm is scientific and advanced, and the judgment precision ratio is more than 90%.

The invention discloses a monitoring apparatus and method for equivalent series resistance (ESR) and capacitance (C) of a boost power factor correction (PFC) converter. The apparatus comprises a boost PFC converter main power circuit, a DC / DC converter unit, a power circuit control unit, a drive circuit, an output power Po sampling unit, a trigger pulse generating unit, a direct-current bus voltage V trigger sampling unit, a capacitor ESR and a capacitance C computing unit, and a display unit. The trigger pulse generating unit monitors an input voltage after rectification so as to obtain a sampling trigger pulse; the direct-current bus voltage trigger sampling unit monitors an average voltage value and obtains a voltage instantaneous value according to the trigger pulse sampling; the output power Po sampling unit monitors an output power of the converter; the data are sent to the capacitor ESR and a capacitance C computing unit and thus the current ESR value and the current C value of the output filter capacitor of the boost PFC converter are obtained; and the display unit carries out real-time displaying. According to the invention, on-line monitoring of the ESR and C values of the capacitor can be realized; the normal work of the converter is not influenced; and the basis is provided for service life prediction of the capacitor and the power supply.

The invention provides a method for realizing the air update of a vehicle terminal, which comprises the steps of sending a login request to a remote control center via a first radio link corresponding to a first IP address; receiving a successful login response message with a second IP address and port parameters and setting the IP address and port number used for downloading remote update files according to the second IP address and the port parameters; receiving the update instruction of the remote control center, and utilizing a second radio link corresponding to the second IP address to log in the remote update center according to the update instruction; sending an update request instruction; sending a packet request instruction; receiving a packet corresponding to the serial number; progressively increasing one unit for the serial number of the packet until the last packet is received, then sending a successful update message to the remote update center and the remote control center, and ending treatment. The invention is based on a mobile communication network and a GPRS communication technology, so the air update of vehicle terminal software can be realized conveniently, quickly and reliably.

The invention discloses a railway wagon brake shoe key going-out fault recognition method based on an artificial neural network. The method comprises the following steps: (1) obtaining an image, model and wagon information of a running railway wagon body when a train passes through; (2) reading a to-be-recognized image; (3) performing preliminary positioning according to an image name to obtain apreliminarily positioned image; (4) scaling-down the preliminarily positioned image in an equal proportion; (5) preliminarily preprocessing the image scaled down; (6) positioning a candidate region for the preliminarily preprocessed image; (7) extracting an image feature vector of the candidate region; (8) carrying out recognition computing on the feature data; (9) outputting a recognition result. The method cannot influence the normal work of a train inspector on the existing TFDS (travelling fault diagnosis system) system; an automatic recognition result can be stored in a friendly form to provide a convenient re-inspection manner for the train inspector; the method has the advantage of full automatic start or stop and is free from manual intervention in service.

The present invention relates to a kind of adaptive vacuum suction disc work bench as plate machining fixture and belongs to the field of mechanical fixture technology. The adaptive vacuum suction disc work bench has mainly suction disc with through hole on suction disc base, hose with one end connected to the through hole and the other end connected to negative pressure detector, and negative pressure detector with the other end connected to the hose joint. The present invention has simple, compact and reasonable structure, and has sealed air passages capable of being opened and closed to maintain the operation state of the whole vacuum system. The suction disc can suck workpiece with uneven surface, irregular shape and shape altered in the machining process, and thus has expanded use range. In case that some of the suction discs has destroyed vacuum condition, the whole vacuum suction disc work bench can still operate normally.

The invention provides a topological structure of a multi-port DC transformer substation and a control method thereof. The functions of different dual-port DC / DC converters are fused, the topological structure can be interconnected with different types of multiple-voltage-grade offshore DC wind power plants and high voltage DC power transmission systems similar in the way that AC networking is achieved through an AC transformer substation and DC networking is achieved through a DC transformer substation, centralized control of DC power flow can further be conducted, and normal work of the DC power transmission systems at other ends can not be affected when the DC power transmission system at one end breaks down. High reliability and extensibility are achieved, the number of ports can be increased or decreased according to actual demands, and great technological, economical and social significance is achieved.

The invention provides a method for synchronously controlling parallel connection of a three-phase inverter. The method for synchronously controlling the parallel connection of the three-phase inverter comprises that a carrier wave counter, a modulating wave counter, a pulse generator, a signal output arbiter and a wire and drive, wherein synchronous enable signals are sent to the signal output arbiter through a control system of the inverter, a symmetrical triangular wave which is identical to a triangular carrier wave period of an inverter module is generated by the carrier wave counter, the modulating wave counter records the amount of falling edges of pulses on a synchronous bus received in a carrier wave period, the input of the pulse generator is triangular waves coming from the carrier wave counter and modulating wave reset pulse signals coming from the modulating wave counter, the input of the signal output arbiter is carrier wave grade synchronous pulse signals coming from the synchronous bus and the synchronous enable signals sent from a controller of the inverter module, a wire and drive module amplifies the power of quasi-synchronous pulse signals of the pulse generator, and the amplified power is output to the synchronous bus after passing by the ware and drive.

The invention discloses a remote-control submerged underwater desilting vehicle, which comprises a vehicle frame and a walking mechanism; a mud cleaning working mechanism is arranged at the front end of the vehicle frame, and a sealed cabin is arranged at the rear end of the vehicle frame; the mud cleaning working mechanism comprises a mud pump with an output port connected with a mud discharging pipe; a driving motor, a transmission device and a power take-off device are arranged in the sealed cabin; the driving motor is used for driving the walking mechanism through the transmission device and the power take-off device; the desilting vehicle further comprises a main controller which comprises a radio signal transmitting device which is communicated with a remote control device, the remote-control submerged underwater desilting vehicle further comprises a float which is fixed relatively to the vehicle frame; the float is connected with an air pump through a gas piping; the gas pipe is provided with a three-position steering valve which is used for feeding the water and discharging the gas for the float, or feeding the gas and discharging the water or neither feeding the gas nor feeding the water; the mud pump, the driving motor and the air pump are respectively connected with the main controller and are controlled by the main controller. The desilting vehicle is simple in structure, convenient to use, high in desilting efficiency and low in construction cost; the working depth is greater than 5m. The desilting vehicle is suitable for the complex underwater environment, and is applicable to the industrial circulating cooling water settling pond, the channel, the conduit and the like.

The invention discloses a camera module group comprising a first transparent member, a camera, a flash lamp and a light blocking layer. The first transparent member includes a first accommodation hole and a second accommodation hole; the camera is accommodated in the first accommodation hole and the flash lamp is accommodated in the second accommodation hole; and the light blocking layer is arranged between the first accommodation hole and the camera. In addition, the invention also discloses a mobile terminal. The light blocking layer is arranged between the camera and the first accommodation hole and the camera is isolated from the flash lamp accommodated into the second accommodation hole. When the flash lamp works, emitted light enters from the edge of the second accommodation hole and passes through the first transparent member, and then the light is absorbed or reflected by the light blocking layer. Because the light can not be transmitted to the camera, light crossing can be avoided; the flash lamp does not affect normal working of the cameras, thereby enhancing the shooting effect of the camera module group; and the shot photo and video picture are real, so that the user experience can be improved.

The invention provides an auxiliary starting device of a vehicle engine, belonging to the technical field of an engine and solving the problems of the prior art that the electric quantity of a storage battery is reduced so that the engine cannot be normally started. The device is connected with the storage battery; the device comprises a starter, a starting relay, a super capacitor, a converting circuit and a DC / DC (Direct Current / Direct Current) converter, wherein an input end of the DC / DC converter is connected with an anode of the storage battery; when the starting relay is switched off, a charging circuit is formed by the super capacitor, the DC / DC converter and a cathode of the storage battery; meanwhile, a preliminary initial starting circuit is formed by connecting the anode of the storage battery with the starting relay and the starter through the converting circuit; the charging circuit and the preliminary initial starting circuit are switched off by the converting circuit when the starting relay is switched on; an anode of the super capacitor is connected with the starting relay through the converting circuit; and a cathode of the super capacitor is connected with the anode of the storage battery through the converting circuit to form a boosting starting circuit. According to the device disclosed by the invention, the starting performance of the engine can be stabilized and improved when voltage of the storage battery is reduced.

The invention discloses a non-destructive identification method for a material of an integral coil of a distribution transformer. The non-destructive identification method based on the difference of attenuation coefficients of copper, steel and aluminum to X rays includes photographing the distribution transformer in a integral state by the X rays; measuring blackness of photographed negative films of the rays by a black and white densitometer; inputting measured blackness values into a computer; and computing X-ray attenuation coefficient and transillumination thickness curves, which are stored in the computer, of the copper, the steel and the aluminum corresponding to different X-ray tubes and comparing the X-ray attenuation coefficient and transillumination thickness curves with a characteristic curve of the industrial ray films, and judging whether the winding coil of the distribution transformer is made of the aluminum or the copper.

The invention discloses an IGBT online state monitoring method and measuring system based on Miller platform delay. One end of a drive signal pre-processing circuit is connected with one end of a controller through a time measuring circuit. The other end of the controller and the drive chip of an IGBT device drive circuit are connected. The drive chip is divided into two paths. One is connected with an IGBT device, and the other is connected with the drive signal pre-processing circuit. The drive signal pre-processing circuit extracts the Miller platform delay in a drive voltage signal of an IGBT turn-on process as the characteristic parameter of IGBT state monitoring to carry out initial state calibration and real-time online monitoring. The health and reliability of the IGBT device during an aging process are evaluated. According to the invention, online monitoring and parameter extraction do not affect the operation of a main circuit, and are sensitive to various typical failure modes; and the method and the system can be directly used for health monitoring and service life evaluation of the IGBT, and solve the problem of lack of effective characteristic parameters in the existing state monitoring technology of power electronic devices.

The invention relates to a parameter selection method adopting an onboard control moment gyroscope group vibration-isolating platform and belongs to the field of the attitude control and the vibration and shaking control of a spacecraft. (1) an idea of the cube vibration-isolating platform is adopted, the cube vibration-isolating platform is arranged between a configuration consisting of a plurality of control moment gyroscopes and a satellite body and the high frequency vibration caused by a plurality of control moment gyroscopes is isolated to the greatest extent; and (2) by reasonably selecting parameters of the onboard control moment gyroscope group vibration-isolating platform, the problem of effectiveness loss of other onboard systems, which is caused after the vibration-isolating platform is applied on a satellite, is avoided.

The present invention discloses a management method of the energy of a PCI Express bus. A main control board detects whether a service board is present, if not present, then the main control board does not provide electricity to the service board, and the PCI Express bus link corresponding to the service board is configured as a state of link power off; if present, then the main control board provides electricity to the service board, and when the service board detects that an interface board is present and that the connections on physical interfaces are normal, the PCI Express bus link corresponding to the service board is configured as a link working state, and a PCI Express bus port of the service board is configured as a device working state. The present invention realizes information transmission by the IPC channel cooperation existing in the system, and as a result, the states of the present detections of the service board, the interface board and the physical interfaces of the interface board and the states of the PCI Express bus link on a control system and a device come into a state of low energy consumption, realizing the energy management of energy saving.

The invention discloses an engine coolant waste heat utilization engine warming system adopting a solid-liquid phase change heat reservoir and a method of the engine coolant waste heat utilization engine warming system. The system comprises a temperature sensor, an electronic thermostat, an electronic fan, a radiator, the solid-liquid phase change heat reservoir, an electronic three-way valve and an MCU. Coolant flows through the phase change heat reservoir to heat phase change materials. The phase change happens to the phase change materials, the phase change materials absorb a large amount of latent heat, and residual heat of an engine is transferred into the phase change heat reservoir to be stored and used for starting engine warming. The electronic thermostat and the electronic three-way valve are controlled by the MCU and kept running synchronously all the time. The premise that normal work of an engine cooling system is not influenced is ensured. After the engine stops, large circulation is closed through the electronic thermostat and the electronic three-way valve. The phase change heat reservoir is sealed and enters the energy preservation state. Thus, under the condition that the existing engine power consumption is hardly increased, waste heat recycle is achieved. The engine warming starting process is achieved under the condition that the engine power consumption is not increased.

The invention discloses a method for inhibiting peak starting current of a start-stop motor. The method includes that firstly a relay with a current limiting resistor is added to a main start-stop motor loop comprising a storage battery, an ignition switch, a contact of an electromagnetic switch and the start-stop motor, and two binding posts of the current limiting resistor and the relay are parallelly connected and then connected between the ignition switch and the contact of the electromagnetic switch; and secondly, a power supply of the storage battery supplies power for coils of the relay and the electromagnetic switch respectively. The invention further discloses a relay for achieving the method for inhibiting peak starting current of the start-stop motor and a start-stop motor for implementing the method for inhibiting peak starting current of the start-stop motor. According to the method, the relay and the start-stop motor, the current limiting resistor is cut in or cut out when ignition is performed in the start-stop motor loop, so that overlarge starting current can be inhibited at the moment of starting of the start-stop motor so as to achieve the purpose of prolonging the service life of the start-stop motor.