74results about How to "Operation is not affected" patented technology

The invention discloses a modular multilevel converter high voltage direct current (MMC-HVDC) converter station starting method used for a power network black start and belongs to the technical field of power transmission and distribution. The technical scheme is that corresponding starting method and strategy are provided aiming at a two-end system and a multi-end system, wherein the method and strategy for the two-end system converter station black start comprise the steps of firstly, starting an active side converter station, closing a direct current transmission line disconnecting link, and charging a passive side converter station at the same time, secondly, carrying out charging in an alternation cycle sorting conversion mode, locking the converter station for a short time when pre-charging is finished, and finally, unlocking the converter station, placing a constant alternating-current voltage controller and fishing start-up. The method and strategy for the multi-end system converter station black start comprise the steps of respectively connecting a resistance (Rx) with positive and negative electrodes on the outlet side of each end of the multi-end system in series on the basis of the steps of the start-up of the two-end system and guaranteeing that the black start can be carried out at any ends with other ends keeping in stable operations. Therefore, reliability of power supply is guaranteed.

The invention discloses a plate rejecting and supplementing system used after zinc stripping, a zinc stripping washing system and a zinc stripping washing method. The zinc stripping washing system comprises a washing unit, at least one zinc stripping unit and the plate rejecting and supplementing system used after zinc stripping; the zinc stripping unit comprises a zinc stripping conveying line, a pre-stripping device, a zinc stripping machine, a receiving and stacking unit and a zinc stack combining device; the washing unit comprises a washing conveying line and a washing unit; and the zinc stripping conveying line is used for conveying negative plates obtained after zinc plate stripping to the washing conveying line, the negative plates are conveyed through the washing conveying line to the washing unit to be subject to washing work, and the washed negative plates are conveyed through the washing conveying line to a waiting position where the negative plates are hoisted to an electrolytic cell.

The invention discloses a general online upgrade method for embedded computer software. An online upgrade server is used to upgrade the embedded computer software. The upgrade steps of the online upgrade server include: starting the upgrade, reading the upgrade file header, verifying the upgrade file, comparing Version number, send the upgrade file, send a restart command, and end the upgrade.

The invention relates to a controller area network (CAN) communication protocol used for an electric-bag or cloth-bag type dust collector control system, and provides a communication debug method of a system CAN bus based on the CAN communication protocol and the electric-bag or cloth-bag type dust collector control system based on the CAN communication protocol. Instantaneity of data communication among nodes of a network formed by the CAN bus is strong, a redundant structure is easy to form, and reliability and flexibility of a system can be improved. When the system is faulty, a plurality of nodes send data to the bus at the same time so that short circuit occurs in the bus easily, and some nodes are damaged. In addition, a CAN node has the function of closing output automatically when errors are severe so that operation of other nodes on the bus is not influenced, the phenomenon that some nodes going wrong cause the bus to be in a deadlock state can be avoided. Meanwhile, compared with other on-site buses, the CAN bus has the advantages of being high in communication speed, easy to achieve, high in cost performance and the like.

The invention discloses a merger method of a stack system. The invention comprises the steps as follows: The links of the stack system which participates in the merger are linked. A stack interface equipment issues a stack group broadcasting message to the linked equipment after the link is changed. The stack group broadcasting message marks the stack information of the stack system the equipment belongs to. The stack interface equipment is the stack equipment which the operation of link breaking and switch-on takes place in. The best stack system is elected out according to the stack information. The best stack system keeps the intrinsic work. The equipments of other stack system which participates in the merger carry out service reopening operation or equipment reopening operation according to the stack information of the best stack system. Then the equipments of other stack system are finally merged with the best stack system. When the stack system is merged, the invention is capable of causing the second best stack system being merged into the best stack system as novel equipment. The work of the best stack system is not affected at all. The network is easy to be controlled. A stack system roil generated by stack system being restacked is reduced to the largest degree. The stability of network is greatly improved.

The invention relates to an embedded bridge health monitoring system which is used for assisting in bridge maintenance work and monitoring old-bridge health conditions in real time. The embedded bridge health monitoring system comprises 3G wireless modules, industrial control mainframes, collection cards and sensors; a communication conversion module is connected between each industrial control mainframe and the corresponding collection card, each 3G wireless module is connected with the corresponding industrial control mainframe, each industrial control mainframe is connected with the corresponding communication conversion module, each communication conversion module is connected with the corresponding collection card, and each collection card is connected with the output end of the corresponding sensor. A CAN bus communication mode is adopted between the industrial control mainframes and the communication conversion modules, a 485 communication mode is adopted between the communication conversion modules and the collection cards, and a two-mainframe construction mode is adopted by the monitoring system. The embedded bridge health monitoring system has the prominent advantages that by means of the system, continuity, orderliness and accuracy of monitoring system data can be guaranteed, stable operation of the system can be better guaranteed, and therefore serious consequences caused by bridge collapse events are avoided.

The invention discloses a floor type multi-rope oil extractor system. The system comprises an oil extractor main body, a gas injection thermal recovery oil extracting pump and a packer module; the oilextractor main body is connected with the gas injection thermal recovery oil extracting pump through a traction system thereof; the gas injection thermal recovery oil extracting pump is connected with the packer module through a hand-free joint; the oil extractor main body comprises a concrete foundation, a shifter guide rail, a rail clamper module, a control cabinet, a bracket, an adjustable balance counterweight, an upper platform, an upper guard combination, a power device, a brake, the traction system and an elevator; the traction system comprises a traction wheel, a steel wire rope, a movable pulley set and a steel wire rope joint; the steel rope is divided into an elevation steel wire rope and a balance steel wire rope; one end of the elevation steel wire rope is fixed on the traction wheel and bypassed through the traction wheel, and the other end is fixedly connected with the steel wire rope joint on the bracket through the elevator and the movable pulley on the elevator; andthe balance steel wire rope is opposite to the elevation steel wire rope, one end is fixed on the traction wheel and bypassed through the traction wheel, and the other end is fixedly connected with the steel wire rope joint on the bracket through the adjustable balance counterweight and the movable pulley on the adjustable balance counterweight.

The invention discloses a heat transfer enhancing and scale preventing and removing device and system for sewage or surface water and belongs to the technical field of energy sources. By the adoption of the heat transfer enhancing and scale preventing and removing device and system for the sewage or surface water, heat transfer enhancement of heat exchange equipment for the sewage or surface water containing a large quantity of suspended matter and impurities is achieved, and the suspended matter and scale which are hung on the wall of the heat exchange equipment and left in the heat exchange equipment can be effectively removed. The heat transfer enhancing and scale preventing and removing device is composed of a cyclone desander, a sand regulation valve and an ejector, wherein the cyclone desander, the sand regulation valve and the ejector communicate with one another from top to bottom. The heat transfer enhancing and scale preventing and removing system is composed of the heat transfer enhancing and scale preventing and removing device, a heat exchanger and a connecting pipeline for the heat transfer enhancing and scale preventing and removing device and the heat exchanger. A water outlet of the ejector of the device communicates with the heat exchanger through a heat exchanger water inlet pipe, and the heat exchanger communicates with a water inlet of the cyclone desander of the device through a heat exchanger water outlet pipe; through repeated ejection and separation of solid particles, the solid particles are made to collide and rub the wall surface of the heat exchanger continuously in the process that the solid particles flow in the heat exchanger along with water flow, so that scale on the wall surface of the heat exchanger is removed, and meanwhile a heat exchange enhancing function is achieved. The heat transfer enhancing and scale preventing and removing device and system are used for heat exchange of the unclean water such as the sewage or the surface water.

The invention provides a DC fault ride-through method for a flexible DC power grid. In order to realize the purpose of DC fault ride-through for the flexible DC power grid, DC fault are divided into two categories in the method including DC faults of converter stations and DC faults of DC power transmission lines. Two independently controlled protection systems are set for the converter stations and DC circuit breakers. When a DC fault occurs, DC fault ride-through of the flexible DC power grid is completed by coordinating and controlling the DC circuit breakers and the converter stations for different types of faults. During the DC fault occurring process, related non-fault converter stations and power transmission lines work normally and may not be affected, thereby realizing stable operation of a flexible DC power grid.

The invention provides a selfreparing method of nodes in a cloud computing cluster, and relates to the technical field of cloud computing. The selfreparing method comprises the steps that first, a cloud management system monitors the operating state of each node; second, when breakdown happens to one node, a system starts a failover process, and all cloud virtual machines on the node are automatically started on other nodes which are sufficient in resource and normal in operation; third, a management system controls the node to be started again through an IPMI system, and the state is detected; fourth, if the state is normal after starting, the node is continuously added into the cluster for being used; fifth, if restarting repairing fails, the IPMI system is used for controlling the node to achieve network starting, then the automatic finding and installing function of the cloud management system is used for reinstalling systems and settings to the node, and the node is added in the cluster after setting is achieved; sixth, if repairing fails, a control table is notified to give out an warning to notify a manager. The selfreparing method of the nodes in the cloud computing cluster lowers the working amount of the working time of the server manager, and human resource cost is saved.

The invention relates to an audio segmentation method based on signal energy spike identification. The audio segmentation method comprises the steps of carrying out short-time Fourier transform on aninput audio signal, and converting the input audio signal into a power spectrum matrix; extracting intermediate frequency energy characteristics based on a power spectrum; carrying out peak identification on the extracted intermediate frequency energy characteristics; carrying out error division correction on the signal after peak identification; and outputting a time coordinate of the division point of the audio signal. The audio segmentation method does not need to set a threshold value, does not need to be trained in advance, analysis can be realized on the basis of audio signals in real time quickly and accurately, the method can be deployed at the edge end, other operating parameters do not need to be accessed, and parameter-free dynamic segmentation is basically realized.

The invention relates to a detection method, a system and a kit of microalbuminuria. The method for detecting the concentration of microalbuminuria in a solution comprises the following steps of: (1) preparing a plurality of solution samples with different concentrations of microalbuminuria, wherein each solution sample contains cyanine dyes with same concentration; (2) detecting fluorescence intensity values of an acquisition wavelength part; (3) obtaining a standard curve of the microalbuminuria concentration; (4) adding the cyanine dyes and a buffer solution containing potassium ions or sodium ions in a liquid sample to be detected, so that the concentration and the pH value of the cyanine dyes in the liquid solution to be detected is consistent with those of the solution sample in the step (1), so as to obtain a test solution and record a dilution ratio of the liquid sample to be detected; (5) detecting the fluorescence intensity values of the acquisition wavelength part; and (6) finding the microalbuminuria concentration value of the corresponding test solution in the standard curve, and calculating the microalbuminuria concentration of the sample to be detected, wherein the acquisition wavelength is in the range of 550 to 650 nanometers.

The invention belongs to the technical field of food packaging, and relates to automatic food bagging equipment. The automatic food bagging equipment comprises a feeding mechanism, a rotating mechanism, a bag feeding mechanism, a bag conveying mechanism and a discharging mechanism. The working end of the feeding mechanism corresponds to the working end of the rotating mechanism. The feeding end ofthe discharging mechanism corresponds to the working end of the rotating mechanism. The working end of the bag conveying mechanism corresponds to the working end of the rotating mechanism. The bag conveying mechanism is arranged above the bag feeding mechanism and the rotating mechanism. The bag feeding mechanism is connected with the bag conveying mechanism. The automatic food bagging equipmentaims to solve the problems that in the packaging process of an automatic food bagging device in the prior art, food cannot be controlled to be regularly placed before entering a packaging bag, and particularly when the food with toughness and softness is in a sheet shape or a block shape and is large in size, if the food is not arranged in order according to a certain sequence before entering thebag, the following sealing and bagging procedures are affected.

The invention discloses a rapid iteration and rollback method for program release. Through a distributed task queue framework, the latest version number is automatically obtained from the bitlab by using a system, and the system can record the version number of the project successfully published last time in jenkins at the same time. The method that uses ajax to pull the tag in real time and the system real-time statistics of the trend graph of the current release times is advantageous in that the page operation is not affected during the waiting period of the implementation task, version numbers and historical version numbers of the projects are clear at a glance, real-time updating and displaying of the version number are ensured, and the number change of recent task release can be visually understood.

The invention discloses a mobile electronic device having a vibration compensation function, comprising a central processing unit, an image processing unit, a vibration sensor and a vibration compensation module, wherein, the vibration compensation module comprises a vibration signal acquisition submodule for collecting vibration signals detected by the vibration sensor, a filter submodule for filtering the vibration signals, a vibration displacement calculating submodule for receiving the vibration signals after removing noise and calculating the vibration displacement, a vibration displacement compensation calculating submodule for receiving vibration displacement compensation and calculating vibration displacement compensation, and an image control submodule for receiving vibration displacement compensation and correspondingly controlling the images on the mobile electronic device screen to carry out vibration compensation through the image processing unit to keep the images on the mobile electronic device screen unchanged in space. The invention also provides a vibration compensation method, and the mobile electronic device can realize automatic compensation of vibration by using the vibration compensation method.

The invention discloses a jacking mechanism. The jacking mechanism comprises a carrier for carrying a workpiece and a plurality of pillars for supporting the carrier, wherein a sliding plate which can move horizontally is arranged below the carrier, and an arc-shaped groove is arranged on the sliding plate; the lower surface of the carrier is connected with a guide plate which is parallel to the sliding plate, and a guide column which extends into the arc-shaped groove is arranged on one surface facing the sliding plate on the guide plate; and when the sliding plate moves horizontally, the carrier can follow the guide column, and then the carrier and the guide column can be further driven by the arc-shaped groove on the sliding plate to make vertical motion. According to the jacking mechanism disclosed by the invention, the guide column is driven by the trajectory of the arc-shaped groove on the sliding plate to make the vertical motion, then the carrier can carry the workpiece to move up and down, the motion is smooth during jacking and descending processes, the acceleration of the jacking mechanism is particularly smaller during startup and stoppage, the vibration produced by the workpiece is reduced, the workpiece can be prevented from being affected by the motion of the jacking mechanism, the jacking mechanism can be always kept in a set positioning position, and then the operation of the workpiece can be prevented from being affected.

The invention discloses a sand board machine for bathroom cabinet production. The sand board machine structurally comprises a controller, a dust collection device, a grinding sand conveying belt, a high-efficiency and energy-saving motor, a base, supporting legs, hydraulic rods, a lifting support, a workbench and a machine body. The supporting legs vertically connected with the base are welded tothe four corner portions of the base. The four supporting legs are fixedly arranged. The top face of the base is connected with the bottom face of the lifting support through the hydraulic rods. The sand board machine for bathroom cabinet production has the advantages that the sand board machine is provided with the dust collection device, the dust collection function is achieved, dust generated in the wood board sand grinding process can be collected, dust and wood bits can be prevented from splashing around, sweeping of operators is facilitated, the workloads of the operators are reduced, the work efficiency can be improved easily, and meanwhile a clean and safe work environment can be created for the operators.

The invention discloses a KM self-adaptive control multi-window same-screen display. The display comprises a Scaler processing module, a KM control processing module, a video signal output interface,a video signal input module, a KM input module and a KM output module, the Scaler processing module comprises a Scaler microprocessor, a window management and signal processing module, a storage transmission control module and a first UART communication module; the KM control processing module comprises a KM control microprocessor and a second UART communication module; and the second UART communication module is connected with the first UART communication module. According to the KM self-adaptive control multi-window same-screen display provided by the invention, the simultaneous display of multiple host interaction interfaces and the roaming operation of the KM control equipment can be achieved based on the same display, and the KM configuration of the host corresponding to the window can be automatically updated by switching the host interaction interface signal corresponding to the display window; the application of the user in the aspects of multi-machine monitoring and managementand control is greatly facilitated, and various application demand scenes of the user are adapted.

The invention discloses a hanging floating type trash holding device. The hanging floating type trash holding device comprises a group of trash holding units which are hung on hinged supports on the two sides of the outlet end of a non-pressure diversion type power station forebay or a desilting basin through a steel wire rope, and the trash holding units are composed of floating assemblies and trash rack assemblies; the trash rack assemblies comprise ladder-shaped frames which are formed through welding supporting angle steel, vertical ribs and transverse ribs and are used for fixing verticalgrid rods; one group of the vertical grid rods parallelly arranged at equal intervals are welded on the ladder-shaped frames; the floating assemblies comprise cuboid frames; plastic foam is arrangedin cavities of the cuboid frames; one group of U-shaped bolts are arranged on the floating assemblies; and after the steel wire rope penetrates through the group of U-shaped bolts, the back end is connected with the hinged supports on the two sides of the outlet end of the non-pressure diversion type power station forebay or the desilting basin. According to the hanging floating type trash holdingdevice, grooves do not need to be formed in a trash rack pier, jamming is avoided during operation, bearing load of the trash holding units is relatively small, self weight is relatively light, investment is relatively small, and mounting, decontamination, overhauling and maintenance are relatively convenient.

The invention discloses a using method for a dynamic ship traveling monitoring system. The dynamic ship traveling monitoring system comprises a CPU, an image acquisition module and a temperature sensor and further comprises a communication module, an alarm module, a performance evaluation module and a button input module. Dual regulation for an engine set is carried out through the performance evaluation module and an engine controller, namely field and remote regulation on the engine set, so a remote control command can directly act on the engine set to stop driving when field operation is out of control or is in fault, driving safety of ships is guaranteed to a maximum degree, and thereby intelligent and simplified operation of the engine set is realized.

The invention discloses a method for deleting installed services based on Ambari, belongs to the technical field of Ambari platforms, and aims to solve the problem of how to rapidly delete the installed services. The technical scheme includes that the method includes the steps: (1) checking configuration files of the deleted services, and clearly determining service names and contained component names of the configuration files; (2) searching files and folders related to the deleted services by Find commands; (3) creating executable script files; (4) running the script files on ambari-server nodes, and executing operations in the script files at nodes with the installed services after successful running; (5) rebooting ambari-servers or refreshing pages, and observing whether the deleted services are successfully deleted or not. The deleted services currently mainly comprise service installation directories, service log directories, user file directories, users, some configuration files and yum installation packages.

The invention discloses an Ethernet asynchronous message processing system based on time triggering. The Ethernet asynchronous message processing system comprises the following steps: a system-on-chip sends a control request for a sensor to an MCU (Microprogrammed Control Unit) through the Ethernet; the microcontroller judges whether the control request is legal or not, caches the control request in a memory and replies a system-level chip that the control request is confirmed to be operated, and the microcontroller processes the control request one by one in a task cycle and then sends an execution instruction to the sensor control chip through an I2C channel; the microcontroller can only process one Ethernet message and only process one execution instruction in the same task period. The invention further discloses an Ethernet asynchronous message processing method based on time triggering. According to the invention, the control logic is executed in an asynchronous mode, so that the computing resources of the MCU central processing unit occupied by all software modules on a data processing link can be reduced, and the instantaneous load of the controller central processing unit is also reduced, so that the operation of other modules is not influenced, and the reliability and effectiveness of CPU use are improved.

The invention discloses a method for retrofitting a substation DC power supply system without power outage, comprising the steps of: S100, connecting a temporary DC power supply system; S200, stoppingthe operation of the existing DC power supply system in the substation; and S300, connecting a new DC power supply system and removing the temporary DC power supply system. When the substation DC power supply system is retrofitted, a temporary power supply is connected to supply power and to realize retrofitting without power outage when the operation of primary and secondary equipment is not affected. The temporary DC power supply system is used as the temporary power supply, and a DC battery pack and a silicon rectifying device operate in parallel so as to eliminate the harmonics of the silicon rectification to improve the output voltage stability of the DC system. The method does not change a system power supply mode and achieves orderly and controllable safe management.

The invention provides a method for utilizing accelerator cards to accelerate cluster deployment. A plurality of servers where peripheral component interconnect-express (PCI-E) solid-state accelerator cards are installed and rear-end storages of the servers form a completed cluster, data writing services can be performed on a single server at the same moment through corresponding cluster management software, and when the written data quantity of the PCI-E solid-state accelerator cards of a first server reaches 90%-100% of the volume of memory module solid state disks (SSDs) in the PCI-E solid-state accelerator cards, the cluster management software can migrate the data writing services to a second server; and when the data storage quantity in the PCI-E solid-state accelerator cards of the second server reaches the same state, the data writing services are transferred to a next server, and no matter which server the data writing services are positioned in, operation of enabling data in the memory module SSDs in the PCI-E solid-state accelerator cards of each server to be written to a rear-end storage array is not influenced.

The invention discloses a field atmospheric humidity settlement automatic monitoring and synchronous simulation cultivation system and a control method thereof; the field atmospheric humidity settlement automatic monitoring and synchronous simulation cultivation system comprises a sensor data acquisition part, a controller control part and a wireless communication part, wherein the sensor data acquisition part and the controller control part are connected with the wireless communication part through a CAN bus. According to the system, monitoring and simulation in a relative separation mode areintegrated, so that the precipitation frequency and precipitation intensity of atmospheric humidity settlement are synchronous with actual precipitation and are closer to reality, and the authenticity of the benefits of the atmospheric humidity settlement ecological environment is improved; the device adopts a total-branch connection mode and a three-way and CAN bus transmission mode, so that parameters collected by the device can be changed at will, and the sensor is convenient to replace. According to the system, the problem of inconvenient management of outdoor test objects in the prior art is solved, the defects of incapability of randomly replacing measurement parameters and equipment and the like are avoided, the cost and the maintenance difficulty are greatly reduced, the applicability of the device is improved, and the development prospect is great.

The invention discloses a power system suitable for a through type in-phase power supply device. The power system comprises an H-bridge power module, a discharge resistor, a bypass switch, a vacuum contactor, an energy taking module and a control module, wherein the H-bridge power module comprises a bus support capacitor, a radiator and a plurality of IGBTs; the discharge resistor is used for discharging residual voltage of the bus support capacitor when the power system does not work; the bypass switch is used for enabling the power system to quit operation when the power system detects a fault; the vacuum contactor is used for automatically closing the vacuum contactor to realize grid-connected operation when the power system meets the operation condition; the energy taking module is used for supplying power to the control module; the control module comprises a driving circuit board and a protection circuit board. Removing and inputting of the power system are achieved through instructions sent by external communication, and the power system has the advantages of being small in size, low in stray inductance of a main circuit and high in power density.

The invention discloses an embedded IC (integrated circuit) card reader-writer based on a CAN (controller area network) technology and an ARM (advanced RISC (reduced instruction-set computer) machines) technology, wherein a central core mainboard is taken as the center to be connected with a connecting CAN modules, two LCDs (liquid crystal displays), a power supply management center module, a radio frequency antenna board module, an audio output module and a keyboard control module. According to the embedded IC card reader-writer, the CAN bus technology replaces the original RS485 (recommended standard 485) or RS422 bus network to transmit data, so as to overcome the defect that the real-time consumption processing requirement can not be met due to the network bottleneck and solve the problem that the system reliability is poor; moreover, the ARM processor technology replaces the original 51-series singlechip technology to add the business processing capacity of a POS (point of sale) machine, so as to improve the update rate of a white list and a storage space of the data.

The invention provides a data transmission method, a sending end and a data transmission system. The data transmission method comprises the following steps: sending obtained to-be-transmitted data to a message queue system; under the condition that the to-be-transmitted data fails to be transmitted, obtaining a partition routing relation table reported by a message queue system from a preset database; and transmitting the to-be-transmitted data to the corresponding first application node through a hypertext transfer protocol according to the partition routing relation table. Thus, when the transmission of the to-be-transmitted data fails, a transmitting end can obtain the partition routing relation table from the preset database, can determine which application node the to-be-transmitted data should be transmitted to according to the partition routing relation table, and directly transmits the to-be-transmitted data to the corresponding application node through the hypertext transfer protocol; when the transmission of the to-be-transmitted data fails, the user operation can be ensured not to be influenced, the data loss is avoided, the success rate of data transmission is improved, and the user experience is ensured.