395results about How to "Guaranteed safety and reliability" patented technology

The invention discloses a comprehensive test method of a small satellite power subsystem. In the method, a solar cell array is replaced by a solar matrix simulator; a ground wired test and control platform of a satellite comprehensive test system is used to transmit wired instructions and collect important parameters; and ground test and control equipment, a remote measurement and control front end and a test computer are used to transmit remote control instructions and collect remote test data. After the satellite is electrified, the on operation time, off operation time and remote control command transmission time of the solar matrix simulator are reasonably controlled, the working state of a power subsystem is set, various parameters and states are monitored and interpreted, and thus, various test items are accomplished. In addition, a method of injecting normal or fault data blocks and program blocks is adopted to test the up injection function, reliability and fault tolerance are tested. The method has high test coverage, clear and definite flow, simple and reliable operation and convenient construction.

The invention discloses an application installation control method, a related system and a related device, which are used to achieve safety management of applications on a mobile terminal. The application installation control method includes the following steps: an enterprise management client on the mobile terminal receives an installation request for an application listed in a list of applications for free installation; in case the enterprise management client is for sure configured with an application blacklist, whether the application to be installed is in the application blacklist is judged, the installation of the application is prohibited if the application to be installed is in the application blacklist, and the installation of the application proceeds if the application to be installed is not in the application blacklist; in case the enterprise management client is for sure configured with an application whitelist, whether the application to be installed is in the application whitelist is judged, the installation of the application proceeds if the application to be installed is in the application whitelist, and the installation of the application is prohibited if the application to be installed is not in the application whitelist. The invention adopting the technical scheme can effectively protect the information security of enterprises.

The invention discloses a block chain-based house lease contract processing method and system. The method comprises the following steps of obtaining a triggering action triggered by a first user, andperforming endorsement verification on an intelligent contract stored in a block chain through an endorsement verification node on the block chain according to the triggering action, wherein the intelligent contract is an intelligent contract generated according to lease contract information established between a first user and a second user; and if the intelligent contract passes the endorsementverification, executing the intelligent contract. According to the block chain-based house lease contract processing method, after a lease contract signed by a tenant and a house provider is convertedinto the intelligent contract, firstly the intelligent contract is stored, thereby performing query and authenticity check and providing data ownership affirmation and data tracing, evidence presenting and auditing; and secondly all the links of the intelligent contract are subjected to the endorsement verification, and only after the endorsement verification is passed, the intelligent contract can be executed, so that the security and reliability of the links involved by the intelligent contract are ensured.

The invention discloses a method and system for testing a configuration logic design of a DCS (Distributed Control System) of a nuclear power station. The method comprises the following steps of: importing a designed configuration logic diagram to be tested into a selected minimal configuration DCS; communicatively connecting the selected minimal configuration DCS with an engineering simulation process platform; according to the preset test progress, running the configuration logic diagram to be tested on the minimal configuration DCS, and interacting data with the engineering simulation process platform, then recording a test result; and according to the test result, modifying the configuration logic diagram to be tested. According to the method and system disclosed by the invention, the configuration logic diagram is tested by using the minimal configuration DCS and the engineering simulation process platform, the correctness and completeness of the result can be virtually verified without depending on real field equipment, the debugging work period is shortened, and the safety and reliability of the design process is guaranteed.

The invention discloses a high-resistance electrothermal alloy material, which comprises the following components in percentage by weight: 0.02 to 0.08 percent of C, 0.75 to 1.6 percent of Si, 0.1 to 0.5 percent of Mn, less than or equal to 0.02 percent of P, less than or equal to 0.015 percent of S, 20 to 23 percent of Cr, 0.1 to 0.5 percent of Al, 0.2 to 0.8 percent of Y, 0.2 to 1.0 percent of Fe, and the balance of Ni and inevitable impurities. The preparation method for the high-resistance electrothermal alloy material comprises the following steps of: smelting; forging; coiling; annealing; rinsing; mold drawing, and the like. Compared with Cr20Ni80, the high-resistance electrothermal alloy material has higher antioxidation performance, and is an electrothermal alloy material with small thermal expansion coefficient, high high-temperature strength and processability, long service life and high resistivity.

The present invention provides a comprehensive managing platform system for automatically rating the electric energy measurement, and consists of a database server, a data accessing logic layer, an automatic rating user end, a WEB server, and a system interface part. The system adopts a C/S and B/S configuration coexisting net combining method, adopts a device communication unified interface design, and connects the technologies which are irrelevant to the device with different measuring devices. The present invention can realize the standardization, the unification, and the standardization of the electric energy measuring task by five function modules of the communication interface managing function, the legal system and law application managing function, the rating work flow managing function, the rating item managing function, and the statistic searching and analyzing function, thereby ensuring the multi-machine work by one person justly and rightly according to the law.

The invention relates to a positioning device for butting a wing body, which is characterized in that the positioning device comprises three positioners for performing attitude adjustment on a part of an airplane, wherein the first positioner is placed at a support point with maximum bearing pressure on a wing and can do translation motion freely in X, Y and Z directions; the second positioner is placed at a farthest point in the X direction of the wing and can do the translation motion freely in the Y and the Z directions and do driven movement in the X direction; and the third positioner is determined according to the position of gravity center of the part of the airplane, the position of the third positioner needs to enable a connecting part for the part of the airplane to meet strength requirement, and enable the stress on each positioner to be uniform, and the third positioner can do the translation motion freely in the Z direction and do the driven movement in the X and the Y directions. The positioning system does not need multi-axis linkage, thereby simplifying the complexity of the system, simultaneously ensuring the safety and the reliability, reducing the cost, reducing the cost for manufacturing, mounting and measuring, and also reducing the cost of a foundation.

The invention discloses a vehicle remote control method, apparatus and system. The method comprises the following steps: step A, through encryption network connection pre-established with a server, receiving an encrypted remote control instruction sent by the server, wherein the remote control instruction is sent by a user end to the server; step B, decrypting the received encrypted remote control instruction, and successively performing effectiveness, validity and rationality verification on the decrypted remote control instruction; step C, when the effectiveness, validity and rationality verification all succeed, executing the remote control instruction; and step D, after the remote control instruction is executed, sending an instruction execution result to the server through the encryption network connection.

The invention discloses a shockproof strip end-plate material of a vapor generator of a nuclear power plant and a preparation method thereof, relating to a shockproof strip end-plate material of a vapor generator of a pressurized water reactor nuclear island CPR1000. The shockproof strip end-plate material is prepared from the following components in percentage by weight: 0.003-0.08 percent of C, 0.1-0.4 percent of Si, 0.3-0.8 percent of Mn, not more than 0.015 percent of P, not more than 0.01% of S, 14-17 percent of Cr, 72-78 percent of Ni, 0.05-0.5 percent of Cu, 0.05-0.5 percent of Ti, 0.05-0.5 percent of Al, 6-10 percent of Fe, 0.01-1.0 percent of Xt and the balance of inevitable impurities. The preparation method of the shockproof strip end-plate material comprises the following steps of: preparing raw materials; smelting in a vacuum refining furnace; refining electroslag; forging; thermally rolling; normalizing; and repeating the process of drawing-annealing- drawing) many times to obtain a finished product of shockproof strip end-plate material. The designed shockproof strip end-plate material of the vapor generator of the nuclear power plant has reasonable content design, excellent resistance of corrosion, fatigue and creep properties and processing performance and has very important economic meaning to improve the production efficiency, effectively prolong the service life of the vapor generator of a nuclear power plant and decrease the production cost.

The invention discloses a PFS-PDMDAAC compound coagulant, a corresponding preparation method and an application method. The PFS-PDMDAAC compound coagulant is prepared as the following steps: the PFS dry powder or solution is arranged in a mixing reactor, and water is added to obtain a ferric-salt PFS solution which is stirred under normal temperature and a PDMDAAC colloid is added into the solution; the mixed solution is stirred under normal temperature till the PDMDAAC colloid is completely dissolved to obtain a stable PFS-PDMDAAC. The application of the PFS-PDMDAAC compound coagulant is to adopt the PFS-PDMDAAC compound coagulant for the coagulation treatment to raw water and waste water and sewage and the dehydration treatment to sludge or silt directly or after dilution with water by any proportion. The component structure and content scope of the invention are distinct to guarantee the capability and stability of the obtained PFS-PDMDAAC compound coagulant, and the materials on industrial manufacturing are available. The various functions of the PFS-PDMDAAC compound coagulant can be adjusted during water treatment with high adaptability so as to reduce cost, reinforce coagulation effect and dramatically enhance the quality of obtained water.

The invention relates to an explosion device and a control flow in the technical field of explosion control over explosive devices, in particular to an electronic detonator explosion network control device and a control flow, which overcome the shortcomings of the electronic detonator explosion network control device in the prior art to make the explosive device run safely, stably and reliably. The device comprises an upper computer control module, a main exploder control module, an exploder control sub-module, a power module and an electronic detonator network module, wherein the upper computer control module is in signal connection with the main exploder control module; the power module is connected with the main exploder control module and the exploder control sub-module respectively, and supplies power to main exploder control module and the exploder control sub-module; the main exploder control module is in signal connection with the exploder control sub-module; and the exploder control sub-module is connected with the electronic detonator network module. The electronic detonator explosion network control device and the control flow are mainly applied to electronic detonator explosion control circuits.

The invention discloses an electricity consumption information acquisition system clock management method and device. The method comprises an electric energy meter clock time checking step, wherein the electric energy meter clock time checking step comprises the specific steps of S1, enabling an electricity consumption information acquisition system to regularly obtain a clock of each electric energy meter in an area for carrying out time checking, and searching the electric energy meters, the clock errors of which exceed a preset range, so as to obtain all the clock overproof electric energymeters; S2, judging a clock error magnitude of each searched electric energy meter with overproof clock, if the clock error magnitude is smaller than a preset error threshold, turning to execute the step S3, and otherwise, turning to execute the step S4; S3, generating a broadcast time checking message through a concentrator so as to carry out broadcast time checking on a target electric energy meter with overproof clock; and S4, reporting an electric energy meter clock overproof event to a master station so that the master station carries out single-meter time checking on the target electricenergy meter with overproof clock. The method and device have the advantages of being simple in realization and low in cost, realizing the intelligent management for the electric energy meter clocks,and being high in clock correctness and management efficiency.

The present invention relates to a platform and a usage method thereof, concretely to a public service platform and a usage method thereof. The platform comprises a terminal and a cloud server; the terminal includes a PC terminal and a mobile terminal, wherein the PC terminal and the mobile terminal form a presentation layer; the cloud server includes a logic layer and a data layer; and the data layer, the logic layer and the representation layer form the whole framework of the public service platform, and the whole framework of the public service platform includes two processes of content publishing and order processing. The present invention provides a product display and selling mode similar to a traditional supermarket, and divide a large-scale application business flow management software implementation process with long period, high cost and big risk into a gradually advanced iterative implementation process with short period, low cost and small risk; and moreover, through providing a service platform, the normalized flow correlation product selling, the standardized requirement customization service, standardized order processing and the pre-sales and after-sales service flows, the problem of the traditional offline implementation service of the BPM industrial field is solved, and the cost and risk of supplying to both parties are reduced.

The invention discloses a transformer fault diagnosing method based on a neural network. The method comprises the following steps: obtaining three ratios of five kinds of gases: C2H2/C2H4, CH4/H2 and C2H4/C2H6 serving as training samples by using an IEC three-ratio method; (2) fuzzifying the three ratio by using a membership function; (3) encoding a fault type; (4) training a BP (Back Propagation) neural network according to fuzzified training sample data till the BP network meets the accuracy requirement; (5) inputting the fuzzified sample data to be detected into the trained BP neural network; and (6) outputting a diagnosis result by using the BP neural network. According to the method, the neural network is trained through history data, so that an online monitoring function can be realized by using the neural network. Data information on a transformer is acquired through a computer, and faults are diagnosed in advance, so that hidden danger is eliminated.

A high-toughness steel welded with high linear energy (More than 50 KJ/cm) and resisting molten zinc corrosion is prepared through converter smelting at 1250-1320 deg.C, vacuum treating, and rolling at 1000-1180 deg.c or lower than 950 deg.C and cumulative drafts rate is greater than or aqual to 50%. It features that composite Ti oxide is used to resist high linear energy, the Nb, V, etc. and used for raising strength, and the Cu, Ni, B and RE are used to resist molten zinc corrosion. Its advantages are simple technology with high efficiency, low cost, and high performance of finished steel.

The invention discloses a high-reliability cluster operation and maintenance management platform method. Specifically, the method comprises (1), a high-reliability cluster control command web access and http form scheduling release step of establishing a cluster operation and maintenance web management platform, wherein remote management and visual management of a cluster are realized, and reliability of cluster operation and maintenance web management is realized from an access layer, a scheduling layer and a central control layer through adoption of a load balance technology and redundancy and fault-tolerance technologies; (2), a high-reliability cluster control command transmission and issuing step of in a data transmission process, encrypting transmission data and an AES key by employing AES and RC4 algorithms, carrying out base 64 coding on encrypted data, and transmitting the coded data through an ssh tunnel, thereby realizing data reliability of the cluster operation and maintenance management; and (3), a high-reliability cluster control command performance and feedback step of establishing an expandable cluster operation and maintenance central operation and maintenance control system, wherein various configuration management frames and a user customized configuration frame are supported, and central control reliability of the cluster operation and maintenance management is realized.

The embodiment of the invention relates to a file synchronizing method, which comprises that a client acquires file contents in a first host, and a server acquires the file contents from the client through a unidirectional transmission network and sends the file contents to a second host so as to finish synchronization of the file contents from the first host to the second host. In addition, the embodiment of the invention also provides a file synchronizing system. By adopting the method and the system of the embodiment of the invention, the application of the unidirectional transmission technology is expanded, the efficiency of file synchronization is improved, and the safety and reliability of file synchronization are ensured.

The invention discloses a power information intranet message encryption release method based on a VXLAN (Virtual eXtensible LAN) technology, and belongs to the technical field of power system dispatching and monitoring distant transmission. In a power system, longitudinal link distant transmission must pass through a national authenticated longitudinal encryption device to ensure security transmission of information, but has the defect that the longitudinal encryption device cannot encrypt broadcast and multicast messages. A two-layer network function of a VXLAN is realized by using a gateway VXLAN router to realize packaging of the VXLAN on broadcast, multicast and IP data messages, then encryption is realized via a longitudinal encryption device tunnel according to a strategy, and the whole process is executed inside the gateway VXLAN router and the longitudinal encryption tunnel, so that distant encryption transmission of multicast and broadcast data messages is realized, the security of message transmission is improved, and the waste of link bandwidth is reduced.

The embodiment of the invention provides a method and a device for carrying out safety analysis on network behaviors. The method mainly comprises the steps of: carrying out self-learning on various kinds of network behaviors in a network by utilizing a clustering algorithm to obtain a network behavior order chain, wherein network behavior order chain comprises all safe network behaviors, and each network behavior comprises a conversation five-element set; judging whether a network behavior to be identified exists in the network behavior order chain, and if yes, determining that the network behavior to be identified is safe; and otherwise, judging whether the network behavior to be identified is safe by mean of set safety strategies. The embodiment of the invention provides the network behavior safety analysis method and device based on the network order, so that whether the network behavior is safe or not can be effectively identified, network attack behaviors can be effectively detected, the safety and the reliability of network application is ensured, and a safe and reliable network application environment is provided to a network user.

The invention provides a road identification and path optimization AGV (automatic guided vehicle) based on machine vision and a control system of the AGV. By the aid of machine vision, a speed-adjustable motor, an ultrasonic module and the like, automatic road identification and optimal path selection of the AGV are realized. A camera is used for acquiring road images, a main control system is used for identifying features points simply built on a movement path by PA (polyamide) adhesive paper, the path is automatically identified, the optimal path is selected by a Dijkstra algorithm, task signals in the driving process are transmitted by a remote control module, obstacles are detected by the ultrasonic module to trigger audible and visual alarm, and emergency brake is realized.

The present invention provides a microwave radar (200) ranging method, a microwave radar (200), a computer storage medium, an unmanned aerial vehicle and a control method thereof. The ranging method comprises the steps of: controlling a signal transmitter of the microwave radar (200) to transmit a microwave signal when the signal transmitter rotates around a rotating shaft (S101);acquiring a frequency of the intermediate frequency signal mixed by the frequency of the transmitting signal and the frequency of the echo signal (S102); and determining the distance between the microwave radar (200)and the reflected target according to the frequency of the intermediate frequency signal (S103). The signal transmitter of the microwave radar (200) is controlled to emit the microwave signal when thesignal transmitter rotates around a rotating shaft to obtain the distance between the microwave radar (200) and the reflected target according to the frequency of the intermediate frequency signal soas to determine the height information and the landform information of the microwave radar (200), effectively ensure the safety and the reliability of the flight of the aircraft and further improve the practicability of the distance measurement method.

The invention relates to an integrated testing circuit for a modular multi-level converter valve and a control method of the integrated testing circuit. The integrated testing circuit comprises a main circuit, a test valve and a control protection circuit, wherein the control protection circuit controls the main circuit and the test valve and performs test valve charging and on-load tests. The normal operation of the converter valve is detected and guaranteed, and when the converter valve is subjected to misoperation, an error prompt is provided through a voltage signal. Voltage-regulating, alternating current and direct current testing circuits of the converter valve are effectively integrated, and testing voltage and current adjustable converter valve charging and on-load tests are finished. The operating states of components in a positive and reverse charging circuit of the converter valve are comprehensively checked through alternating current charging, and the safety and reliability of follow-up tests are ensured. Moreover, high current is generated by utilizing reactive energy exchange, and the active loss of the testing circuits and the capacity of a testing input power supply are reduced.

The invention discloses a self-adaptive cruise control method and device and an automatic driving vehicle. The self-adaptive cruise control method comprises the steps that current video information infront of a vehicle is collected; the transverse position of a front vehicle and a first relative speed relative to the vehicle are obtained according to the current video information; and a current position of the front vehicle is obtained according to the transverse position, the first relative speed, a longitudinal position obtained through a radar and a second relative speed relative to the vehicle, and the front vehicle is used as a following target vehicle of a self-adaptive cruise mode when the current vehicle speed of the current position and the front vehicle meets a preset followingcondition. According to the self-adaptive cruise control method, the transverse distance and transverse speed of the target vehicle are obtained according to the video information, so that the relative position of a front target and the vehicle advancing track is judged, rapid reaction is given to target vehicle cut-in/cut-out, the following stability of a self-adaptive cruise control system is improved, the reliability and safety of self-adaptive cruise are effectively ensured, and user experience is improved.

The invention discloses a spring load test system, which comprises a control table and a load installing platform, wherein the load installing platform comprises a fixed block and a movable block; the movable block is driven by a driving device controlled by the control table to horizontally move relative to the fixed block; a force sensor is arranged on the movable block; the control table receives an output signal of the force sensor; the control table controls the movable block to displace through controlling the driving device; the spring load is compressed or stretched along; when the compression or stretching displacement change value reaches a preset displacement feature point part, a force test value transmitted by the force sensor is recorded. The system has the advantages that the function is strong; an industrial control computer with higher reliability is used for control; the automation of the detection process is realized. The automation degree is high; the reliability is good; the impact of artificial factors in the original detection process is eliminated, so that a detection result is more accurate; the work intensity of workers is greatly reduced; the operation time is reduced; the production efficiency is improved.

The invention relates to a method for detecting loose glass curtain walls and predicting falling risks, which comprises the following steps (1) determining a glass reference frequency range according to the parameter of glass plate used in a glass curtain wall to be detected; (2) conducting a laboratory simulation test for the same glass plate; measuring inherent frequencies corresponding to different fixed states; obtaining a measurable frequency range Omega down and Omega up, and loose frequency Omega loose in the reference frequency range; conducting evaluation and classification by taking the difference between the two extreme values, namely Omega down and Omega up, and the loose frequency, namely Omega loose as a security interval and a danger interval; (3) conducting vibration signal sampling and detection for the glass curtain wall in the field and obtaining the actually measured frequency of the glass curtain wall; (4) comparing the actually measured frequency value with coherent frequency classification, and obtaining the safety and reliability grade of the glass curtain wall in the process of use.

The invention relates to a method for positioning a three-dimensional coordinate of an ultrasonic probe based on a magnetic resonance image. The method is used for positioning the three-dimensional coordinate of the ultrasonic probe in a magnetic resonance guided ultrasonic therapy system and includes the steps: 1) acquiring an image of a positioning marker on the ultrasonic probe by magnetic resonance imaging and recording image information of the image; 2) calculating a three-dimensional coordinate value of a positioning mark point on the positioning marker in an MRI (magnetic resonance imaging) coordinate system according to the image information; 3) calculating a transformational relation matrix of the MRI coordinate system and an ultrasonic therapy system coordinate system according to the three-dimensional coordinate value of the positioning mark point in the MRI coordinate system and a three-dimensional coordinate value of the positioning mark point in the ultrasonic therapy system coordinate system; and 4) positioning the three-dimensional coordinate of the ultrasonic probe according to the transformational relation matrix and the ultrasonic probe image acquired by the magnetic resonance imaging. Compared with the prior art, the method has the advantages that the therapeutic process can be accurately positioned, therapeutic safety and reliability are ensured and the like.

The invention provides an initiating explosive device control circuit and a controller using the control circuit. The control circuit comprises an initiating explosive device control branch or a plurality of initiating explosive device control branches connected in parallel, and the initiating explosive device control branches are used for controlling initiation of an initiating explosive device. Each initiating explosive device control branch comprises an initiating explosive device bridge wire or a plurality of initiating explosive device bridge wires connected in parallel, the public plus ends of all the initiating explosive device control branches are connected with the plus end of a power source through a first control switch, the public minus ends of all the initiating explosive device control branches are connected with the minus end of the power source through a second control switch, and the first control switch and the second control switch are used for controlling on-off of the initiating explosive device control circuit; each initiating explosive device control branch further comprises an initiation switch used for controlling on-off of each initiating explosive device control branch. The initiating explosive device control circuit and the controller have the advantages that false operation of the initiating explosive device can be effectively avoided, and reliability and safety of the initiating explosive device control circuit are ensured.

The invention belongs to the technical field of battery manufacturing of electric motor cars and in particular relates to an improved battery; the battery comprises a shell, an upper cover, a pole rod, a lithium battery and an electric conducting bar; the shell is a cuboid shape, and the opening of the shell is sealed by the upper cover, and a strengthening rib is formed by the outer wall of the shell forms, and the lithium battery is arranged in the shell; the pole rod is embedded on the upper cover, and the outer end of the pole rod is connected with the electric conducting bar; the strengthening rib is transversely and uniformly distributed by the way that the strengthening rib is parallel to the edge of the opening of the shell. The improved battery has the advantages of high-strength shell, good heat radiating performance, simple structure, high using safety, high sealing property, long service life and the like.

The invention relates to a dendrobium officinale growing environment intelligent monitoring system based on a PLC (Programmable logic Controller), comprising a data acquisition unit, an execution mechanism, a PLC unit and a configuration unit. The PLC unit is a core controller. The configuration unit comprises a PC and configuration software which are used as a monitoring module, and perform communication with the PLC unit through a serial port. The data acquisition unit is in connection with the PLC unit through an A/D converter. The PLC unit is in connection with the execution mechanism. The data acquisition unit comprises a temperature sensor, a humidity sensor, a CO2 concentration sensor and an illumination sensor. The execution mechanism comprises a fan system, a spraying system, an air-conditioning system, a CO2 compensator, an LED light source, a fluorescent lamp system and an alarm system. The control system realizes common control of a plurality of sub systems, and meanwhile guarantees system operation reliability and security; in addition, an expansion interface is reserved, thereby laying a foundation for dendrobium officinale growing scale enlargement and control equipment expansion.

The invention belongs to the technology of determination of time between overhauls of an aero-engine and relates to the improvement of a method for determining the time between overhauls of an aero-engine, in particular to a method for determining the time between the overhauls of the aero-engine. The method for determining the time between the overhauls of the aero-engine is characterized by comprising the following steps of sampling estimation, performance degradation analysis, reliability analysis, analysis of the relation between the service life of each part with service life control and the service life of the aero-engine, analysis of the economical efficiency of maintenance, and determination of the time between the overhauls of the aero-engine. By the adoption of the improved method for determining the time between the overhauls of the aero-engine, the accuracy of determination of the time between the overhauls of the aero-engine is improved, the safe reliability of the aero-engine is guaranteed, and the economical efficiency of use and maintenance of the aero-engine is improved. The improved method for determining the time between the overhauls of the aero-engine is suitable for the Chinese management mode of the time between the overhauls of the aero-engine.