3214results about How to "Reduce maintenance difficulty" patented technology

The invention relates to an anti-back-splash sand blasting perforator, which comprises a body and a nozzle, wherein a groove is formed in the outer wall of the body; an installation hole is formed in the middle of the groove; the side wall of the groove is inclined; the nozzle is installed in the installation hole; the outer end of the nozzle stretches out from the bottom surface of the groove. The anti-back-splash sand blasting perforator is simple in structure, less in parts, and easy to process and assemble; through the arranged groove and a bulge on the outer end of the nozzle, a flow guide structure is formed around the nozzle, so that back-splash liquid can be timely and uniformly flown when back splashing on the perforator, can be prevented from forming vortex in the groove, and can be prevented from flowing in the groove for a long time; the erosion of the back-splash liquid on the perforator is reduced, and the service life of the perforator is improved.

The invention discloses an automatic charging system of an electric car and a control method of the automatic charging system. The automatic charging system and the control method thereof have the advantages that monitoring is started from parking of the car, a charging connection reset device is disconnected after charging of the car, a user's bill is generated, charging plug butt joint and real-time charging process monitoring are included, all related data in the whole charging process are monitored by a software system portion, a hardware mechanical portion is controlled to complete a next action, the hardware portion sends new semaphore to the software portion for new command calculation after completing a command, the software portion is combined with the hardware portion, and accordingly, systematicness and intellectuality of the whole charging system are improved; a charging interface butt joint scheme based on machine vision and a machine learning algorithm is applied, and feasibility and accuracy in butt joint are guaranteed; a three-dimensional lead screw guide rail mechanism with a long stroke is used, the range of activity of a charging connector is widened, and the charging connector is suitable for multiple car models; the automatic charging system is provided with a payment code scanner, payment of related charges can be completed through a payment bar code scanning function of a cellphone-side payment application, and accordingly, intelligent payment is achieved.

The present invention provides a train operation control system based on full information perception. The system includes: ground center equipment; assisting trains to obtain communication train information, correctly establish train-vehicle communication, and automatically receive data to supervise and control train operation; On-vehicle equipment: increase direct communication channels between vehicles and target controllers, combined with comprehensive information perception and input for active train protection; trackside equipment: form a distributed target controller communication network based on IP communication, support trains through wireless The communication controls and collects the status of the trackside signal equipment. The invention improves the intelligence degree of the vehicle-mounted equipment in the train control system, combines the interlocking and section block functions of the existing system with the original vehicle-mounted train control function, and the vehicle-mounted equipment completes the integrated control of the interlocking train control, while the track The trackside equipment realizes fully electronic distributed control, which reduces the laying complexity, maintenance difficulty and maintenance cost of the trackside equipment.

The invention discloses an electric generator based on a methanol water hydrogen-making system and an electricity generation method thereof. The electric generator comprises a methanol water storage container, a delivery pump, a heat exchanger, a reformer, a separation device and a fuel cell, wherein the delivery pump is used for delivering methanol and water to a reforming chamber of the reformer; the heat exchanger is used for carrying out heat exchange on the low-temperature methanol and water and a high-temperature mixed gas output from the reforming chamber; the reformer is provided with the reforming chamber and an electric heater, and the electric heater provides heat energy for the reforming chamber; and the high-temperature mixed gas which takes carbon dioxide and hydrogen as main parts is prepared in the reforming chamber, passes through the heat exchanger and then enters the separation device to be separated to obtain the hydrogen, and the hydrogen is delivered to the fuel cell and subjected to electrochemical reaction in the fuel cell to generate electric energy, a part of the electric energy provides electricity for the delivery pump and the electric heater, and the rest of the electric energy is output. According to the electric generator, the reformer has no need of being provided with a combustion chamber, an air inlet fan, an air inlet channel and a smoke window, the heating temperature inside the reformer is easily controlled and stable, and the reformer is simple in structure, stable in operation and low in overhaul difficulty.

The invention discloses a double-optical frequency comb optical imaging method based on a continuous frequency stabilized laser. According to the optical imaging method, two optical frequency comb seed resources are locked onto a stable outside atomic clock through a repetition frequency control module, meanwhile, an electric signal which has optical comb frequency instability is extracted through interaction between the continuous frequency stabilized laser and the laser output by the two optical frequency comb seed resources, radio-frequency signal power distribution and processing are conducted on the electric signal, a part of the electric signal is directly used for feedback control of the laser resonator character of the two optical frequency comb seed resources so as to stabilize the output carrier envelope phase frequency of a semiconductor laser unit, the other part of the electric signal is used for being mixed with a periodical interference spectrum signal generated by a double-optical comb imaging system so as to further counteract the frequency variations of the optical comb system, and therefore the measurement precision of the whole double-optical comb imaging system is controlled from two aspects and quick and super-high-resolution optical comb coherent imaging is achieved.

The invention provides a ZPW-2000A track circuit system, which comprises a receiver, a communication interface device, a sender, a track circuit maintenance machine, a cable lightning protection analogue network, an attenuation redundancy controller, a cable and outdoor trackside equipment, wherein the sender is used for generating and outputting corresponding signals to a train and the receiver according to received carrier-frequency and low-frequency coding information; the receiver is used for demodulating the received signals according to the received carrier-frequency and low-frequency coding information, obtaining track state information and outputting to the track circuit maintenance machine and a train control system; the track circuit maintenance machine is used for analyzing and judging the received self working state of the sender, the self working state of the receiver, signal amplitude and current output by the sender, the signal amplitude of a receiving terminal and the track state information, and correspondingly processing according to judgement results; and the communication interface device is used for completing communication protocol conversion of the sender, the receiver, the track circuit maintenance machine and the train control system.

Embodiments of the invention provide a patch loading method and device. The method includes: compiling patch codes, which are instructions in units of patch functions, into a relocatable dynamic link library; analyzing a patch image file including the patch codes, acquiring relocation function information in the patch image file, and establishing link relation between the patch image file and a target process at which an application runs after the patch codes are loaded; according to the link connection between the patch image file and the target process, modifying an original function entry instruction, and jumping to execute patch functions. The patch modes are compiled into the dynamic link library, so that the same patch code is universal to applications of various versions.

The invention discloses a methanol water hydrogen-making machine and a hydrogen-making method thereof. The methanol water hydrogen-making machine comprises a methanol water storage container, a delivery pump, a heat exchanger, a reformer, a separation device and a fuel cell, wherein the delivery pump is used for delivering methanol and water inside the methanol water storage container to a reforming chamber of the reformer; the heat exchanger is used for carrying out heat exchange on the low-temperature methanol and water and a high-temperature mixed gas output from the reforming chamber; the reformer is provided with the reforming chamber and an electric heater, and the electric heater provides heat energy for the reforming chamber; and the high-temperature mixed gas which takes carbon dioxide and hydrogen as main parts is prepared in the reforming chamber, passes through the heat exchanger and then enters the separation device to be separated to obtain the hydrogen, and a part of the hydrogen enters the fuel cell and generates electrochemical reaction in the fuel cell to generate electric energy to provide electricity for the delivery pump and the electric heater. According to the methanol water hydrogen-making machine, the reformer has no need of being provided with a combustion chamber, an air inlet fan, an air inlet channel and a smoke window, the heating temperature inside the reformer is easily controlled and stable, and the reformer is simple in structure, stable in work and low in overhaul difficulty.

An embodiment of the invention provides a page rendering method and apparatus, and a page processing method and apparatus. The page rendering method specifically comprises the following steps: obtaining a component configuration protocol corresponding to a target component in a first page, wherein the component configuration protocol comprises structure information and interaction information of the target component; obtaining the structure information and interaction information of the target component from the component configuration protocol; according to the structure information and interaction information of the target component, rendering the target component to obtain a corresponding first rendering result; and displaying a page area corresponding to the target component accordingto the first rendering result. The embodiment of the present application can shorten the uplink time of new page configuration requirements, and moreover, the expansion of a component library caused by new components can be effectively avoided.

The embodiment of this invention discloses an ARP attach precautionary method, device and communication. The method comprises following steps: receiving an ARP message, detecting whether there is an ARP list item including the same first information in pre-stored at least one ARP list item according to a first information of the ARP message; if there is the ARP list item, judging whether a second information in the ARP list item is the same with the second information in the ARP message; when the second information in the ARP list item is different from the second information of the ARP message, then abandoning the ARP message and recording the attack diary. Applying the technical solution of this invention realizes performing multiplex filtering to the ARP message based on the authorization information at least including the first and second information, thereby protecting against the ARP attach without the manual maintenance, realizing effects of reducing the network maintenance difficulty and improving the network safety.

The invention discloses a network terminal control method and a network terminal control system, comprising: recording device identification information of the network terminal and physical position information of the network terminal through a position server, and executing the steps after starting a network terminal: the network terminal request to register to an applying server, wherein the registering information is carried with ID address of the network terminal and the device identification information; the applying server inquires the physical position information corresponding to the network terminal to the position server based on the physical position information; if true, the applying server builds binding relation between the IP address of the network terminal and the physical position information and sends down to a DNS server, to perform visit on the network terminal based on the physical position information. According to the invention, it is in favor of disposition of larger network, thereby effectively reducing maintaining difficulty of the network terminal.

This invention relates to a method and a device for managing and maintaining devices safely, which sets identification control information of access users in an accessed device at the network side, if the accessed device receives management and maintenance information sent by an access user, it controls the maintenance operation of the access user by enquiring the control information so as to reduce the maintenance difficulty and cost of access devices in the communication network. This invention also sets exclusive identification information for a same user applying different access modes so as to simply the authentication process of accessed devices to the access purview of users applying different access modes and management maintenance purview.

The invention relates to a pebble-bed module type high-temperature gas cooled reactor fuel loading and unloading system which comprises a reactor (10), a reactor core fuel circulating system (20), a new fuel loading system (300) and a spent fuel unloading system (400). The reactor (10) comprises a reactor pressure container (11), a graphite coating reactor internal component (12), a central reactor core cylinder (13), a metal reactor internal component (15) and an unloading pipe (14), the reactor core fuel circulating system (20) comprises a reactor core unloading system (100) and a reactor core loading system (200) and further comprises a helium pneumatic conveying system (500), a compressed air pneumatic conveying system (600), a vacuum pumping system (700) and a helium supplying and recycling system (800), and the compressed air pneumatic conveying system (600), the vacuum pumping system (700) and the helium supplying and recycling system (800) are all connected with the helium pneumatic conveying system (500). The helium pneumatic conveying system (500) is further respectively connected with the reactor (10), the reactor core fuel circulating system (20), the new fuel loading system (300) and the spent fuel unloading system (400).

The invention relates to a method and system for implementing automatic programming. The system comprises a data structure and service interface compiler, a service logic compiler, a data structure and service interface description file, a service logic description file, a foundation library and a platform related compiler. The method comprises the following steps of: 1, defining the syntax of the data structure and service interface description file; 2, defining the syntax of the service logic description file; 3, writing the data structure and service interface compiler; 4, writing the service logic compiler; 5, writing the data structure and service interface description file; 6, compiling the data structure and service interface description file; 7, writing the service logic description file; 8, compiling the service logic description file; and 9, performing platform related compiling link, and compiling a project source program file to generate a platform related executable file by using the platform related compiler. The invention has the advantages of reducing the programming training cost, programming errors and time required for debugging and reducing the time costs for writing, debugging and modifying programs.

The invention discloses a flight control system sensor hybrid redundancy method based on an analytic reconstructed signal, and relates to the technical field of spacecraft control. With the analytic reconstructed signal designed in the hybrid redundancy method, the analytic reconstructed signal only serves as a hot backup signal under regular work condition of a current sensor system, and does not participate in the decision-making strategy of a monitoring voting system; once the voting result of the monitoring voting system is abnormal, the hot backup signal is started for participating voting, the monitoring voting system is used for comparing each sensor measured value with the analytic reconstructed signal, and correct measured value output is given out. Thus, the capacity of processing process faults by purely depending hardware redundancy is improved, and the redundancy level and fault/work level of the sensor system are improved; the hardware maintenance difficulty in later period is also greatly reduced, and the hardware redundancy configuration of the sensor system can also be appropriately reduced if the correctness of the analytic signal can be guaranteed.

The invention example relates to the communication field and discloses a method to select a district. The method includes judging whether a terminal in a first district enters into a free mode or not; if so, selecting a second district covered on the first district to be a staying district. The invention example also discloses a paging control center and network system of a terminal and network. Adopting the method, system and relevant devices can reduce unnecessary sending of paging information, reduce the station location markers needed managing by system and lighten the system maintenance intensity.

The present invention discloses a hardware module testing method, which relates to the hardware module testing technique and is put forward in order to solve the inconvenience of the prior hardware module test. The technical proposal adopted by the present invention is that: A. after a test request of a hardware module is received, the identification information of the hardware module is resolved; all the hardware version information of the hardware module is found out and output to a user; after the user receives a selection, step B is carried out; B. test items of the hardware module are determined according to the hardware version; test template matching is carried out, and all matched test templates are output to the user; after the user receives a selection of the test templates, step C is carried out; C. according to the test template selected by the user, testing instrument devices corresponding to the test template are invoked, and the test template is executed; testing results are returned to the user after test is over. The present invention simultaneously discloses a device for realizing the method. The device is simple to realize and low in maintenance cost.

The embodiment of the invention discloses a multidimensional database query method which comprises the steps of: receiving input multidimensional query parameters; generating a tree object, traversing a keyword set, arranging keywords in the traversed keyword set according to a preset field sequence, generating paths from root nodes of the tree object to leaf nodes of the tree object, and adding the path into the tree object; merging tree nodes in the tree object, which recursively comprise the same child nodes and correspond to the same parent node; and traversing the paths from each root node to the leaf nodes in the merged tree object, acquiring keyword sets in the tree nodes on the traversed paths, generating query condition expressions corresponding to the traversed paths according to an in operator, and by an or operator, connecting the query condition expressions corresponding to all the paths to generate an SQL (Structured Query Language) statement. The multidimensional database query method disclosed by the invention can generate the short SQL statement, and is beneficial to maintenance.

The invention discloses a miniature light emitting diode lamp panel, a manufacturing method thereof, a backlight module and a display device. A thin film transistor array substrate is used to replacea PCB (Printed Circuit Board) in the prior art. The thin film transistor is characterized in that a large scale semiconductor integrated circuit is manufactured on a glass substrate, and film layers of a generation circuit are formed by sputtering, chemical vapor deposition and other processes, so that the manufacturing cost is lowered, and the etching accuracy is much higher than that of the PCB.During manufacturing of the lamp panel through combination of the thin film transistor array substrate and a miniature light emitting diode chip, the miniature light emitting diode chip is bonded with a current-conducting and heat-conducting adhesive, so that the chip with a poor light emitting effect can be replaced; maintenance of lamp panel is facilitated; and the difficulty of maintenance islowered.

The invention belongs to the technical field of human machine interaction, and discloses a motion capture glove for gesture recognition. Finger parts at the two ends of each joint of a glove body are each provided with an attitude sensing module. Each attitude sensing module at least integrates a three-axis MEMS gyroscope, a three-axis MEMS accelerometer, a three-axis magnetic sensor and a sensing microprocessor; each attitude sensing module is connected with the glove body through a special pin chip packaging socket, the special pin chip packaging sockets are attached to a flat cable arranged inside the glove body, and the attitude sensing modules are connected with a concentrator through the flat cable. According to the motion capture glove, the hardware scheme of the attitude sensing modules convenient to replace is adopted, when an attitude detection result is wrong due to the fact that a certain attitude sensing module fails, a user can conveniently replace the failure attitude sensing module, and due to the fact that no complex operation such as welding is needed, the maintenance difficulty and maintenance cost of the motion glove are lowered. The invention further provides a corresponding calibration method.

The invention discloses a fire-reconnoitering and fire-extinguishing robot. The fire-reconnoitering and fire-extinguishing robot comprises a caterpillar chassis, a fire-extinguishing water cannon anda reconnoitering mechanism, wherein the fire-extinguishing water cannon and the reconnoitering mechanism are arranged on the caterpillar chassis; the caterpillar chassis is composed of a chassis body,a chassis shell, a suspension cross beam, driving wheels, a driven wheel set, support belt wheel sets, bearing wheel sets, damping plate sets, elastic components, an approach wheel set, tensioning mechanisms, an obstacle avoidance assembly, a warning assembly, a driving assembly, a controller, a wireless transmission assembly, caterpillar assemblies, a dustproof cover plate, searchlights and a lithium battery. Through the fire-reconnoitering and fire-extinguishing robot, the problem of slippage and removal between the driving wheels and the caterpillar is solved; the efficient transmission between the driving wheels and the caterpillar is achieved; the adhesion performance between a suspension system with the caterpillar in the obstacle surmounting process is ensured; the stability of therobot when surmounting the obstacles and climbing can be also improved; the function of tensioning the suspension system on the robot is achieved; the safety and the stability of movement of the robot are further improved; the maintenance difficulty and the usage cost of the robot are reduced.