798results about How to "Reduce hidden dangers" patented technology

The invention relates to a safety production management and control device, system and method. The device includes a safety monitoring module, a device management module, a risk management and controlmodule, and a safety production management module; the electronic labels of devices in the device management module are associated with the devices and are the identity labels of field devices and device pattern model libraries; the safety monitoring module obtains field device operating parameters, device state information, work field safety measures and staff field operation information; the risk management and control module combines the device operating parameters and other information with a device risk knowledge base and generates device state risk early warnings and operation risk pre-control measures; and the safety production management module generates operation tasks, work tickets and operation tickets according to requirements, and ensures the implementation of operation fieldsafety measures and performs safety supervision on the operation process and process management and control on the operation behaviors of operating personnel according to the device operating parameters, the device state information, the risk pre-control measures and the safety measures.

The invention discloses a network asset fingerprint identification method, system and device, and the method comprises the steps: carrying out the detection of a survival host under a target IP segment through an asynchronous stateless scanning mechanism, storing the address of the survival host in an asset scanning queue, and carrying out the asset identification task distribution of the survivalhost under the asset scanning queue; and setting an initial fingerprint hit rate for pre-stored common asset fingerprint data, and calling an asset detection engine to perform asset fingerprint identification on the survival host in the asset scanning queue through active detection and fingerprint rule feature library matching based on the fingerprint hit rate.

The invention provides a navigation display interface which comprises a vehicle icon, a destination icon and a compass icon, wherein the vehicle icon expresses the position and the direction of a vehicle; the destination icon expresses the direction and the distance of a destination; the compass icon expresses the south and the north; and the vehicle icon, the destination icon and the compass icon are combined into the same navigation icon to be displayed on a display interface. The display method of the display interface comprises the following steps: acquiring relevant data by a GPS signal;then calculating a running course angle of the vehicle and a destination direction angle; and displaying vehicle running information, destination information and the north and south direction on the same icon. The navigation display interface displays the vehicle position, the running direction and the destination direction and distance on the same navigation icon simultaneously, and a driver cansimultaneously learn running information in the same icon, such as destination position, direction, distance, south and north direction, and the like and acquire the clear vehicle running direction without sight transfer.

The invention provides a method for testing software performance. The method comprises the following: step 1, formulating a test proposal according to a test task acquired from a test task list and selecting a test tool; step 2, generating a test script according to the formulated test proposal; and step 3, testing software performance through the test script after finishing test preparation work. Therefore, on the basis of software test work in general meaning, the method has further expansion and promotion, establishes an independent test-quality evaluation mechanism oriented to performance innovatively according to production versions, can control production quality more effectively and reduce the production risk and hidden trouble of software product versions by establishing a strict test output-permission evaluation mechanism and utilizing means and methods for testing the performance of the production versions.

The invention discloses an automatic panel feeding, cutting, arranging and stacking device. A feeding device comprises a feeding trolley, a feeding rack and a feeding hanging bracket located above the feeding trolley. A shearing device comprises a cutting rack, a cutting table, a cutter, a cutting baffle parallel to the cutter, a cutting positioning mechanism and an inclined discharging plate. An arranging device comprises a pre-arranging plate, a pre-arranging plate guide rail and a pre-arranging positioning mechanism. A stacking device comprises a stacking rack, a stacking hanging bracket, a lifting mechanism located below the stacking hanging bracket, and a discharging linear guide rail located below the lifting mechanism. The feeding device, the cutting device, the arranging device and the stacking device of metal panels are connected into a production assembly line, and the full-automatic machining process of feeding, cutting, arranging and stacking of the panels can be achieved through a PLC. Compared with manual operation, the arranging device of the automatic panel feeding, cutting, arranging and stacking device enables stacked materials to be tidy, multiple panel strips can be stacked at the same time through the stacking device, and the production efficiency is improved in a multiplied manner. By means of the automatic machining process, labor intensity is lowered, the labor cost is reduced, and hidden danger of safety production is reduced as well.

The invention discloses a method for online detection and assessment of a photovoltaic system, comprising steps of starting up a voltage-current scanning function through an MPPT function in a photovoltaic system, enabling output voltage of a photovoltaic array which is received by the MPPT to be from minimum working voltage state to an open circuit state or from the open circuit state to the minimum working voltage state, detecting the current value and the voltage value of the MPPT of each path in the process, collecting physic quantities of the corresponding moment like the solar radiation, environment temperature, photovoltaic assembly temperature, wind speed, wind direction, etc, utilizing collected data to adopt a fitting method to establish a photovoltaic power calculation model, combining and utilizing leave factory parameters of the photovoltaic assembly or an initial photovoltaic power calculation model which is established by a PVsyst database, and calculating energy efficiency indexes of each link and obtaining an energy efficiency analysis result after the faulted time frame is eliminated. The invention realizes the online detection of various physic parameters of the photovoltaic system, the photovoltaic array modeling and calculation and analysis of the energy efficiency index of each link.

The invention provides a system for testing an electric automobile power system assembly. The system comprises a computer module, a power source, CAN (Control Area Network) bus units, power controlling units, safety monitoring units, vehicle-mounted charger units, battery pack management units, motor controlling units, a motor unit, a first battery module and a second battery module. The motor unit comprises a first motor and a second motor, and rotors of the first motor and the second motor are mutually connected. According to the invention, two identical sets of the motor units, the motor controlling units, the battery pack management units and the vehicle-mounted charger units are combined together. By serially connecting two motors together, energy interacting in the motor unit is realized. Except for inherent operation loss in the system, energy is mutually converted and exchanged among the first battery module, the second battery module and the motor unit, thus the energy is maximally saved, meanwhile, loading testing, service life loading testing and function verifying for core power critical systems of two sets of new-energy automobiles are realized.

The invention relates to a method for preparing antibody-maytansine alkaloid medicine conjugate. The method comprises the following steps of replacing the antibody into a reaction buffer solution; dissolving a dual-function bridging agent-maytansine alkaloid with an organic solvent so as to prepare the mother liquor of maytansine alkaloid medicine; mixing the replaced antibody with the mother liquor of maytansine alkaloid medicine for coupled reaction for 1-4 hours at 20-30 DEG C; and carrying out anion exchange chromatography on the reaction liquid, conducting Sephadex TMG25 desalination chromatographic column purification on collected flow liquid, and collecting a first peak sample as the prepared antibody-maytansine alkaloid medicine conjugate. The prepared antibody-maytansine alkaloid medicine conjugate is proper in coupling rate, high in purity and low in endotoxin content.

The invention provides a primary frequency modulation control method and device of a photovoltaic virtual synchronous machine. The method comprises the steps of receiving a frequency fall signal indicating that a power grid falls from a stable running frequency to a first frequency; and responding to the frequency fall signal, coordinating by using a photovoltaic energy storage unit and a photovoltaic power supply based on the photovoltaic virtual synchronous machine, so as to provide a support power to perform primary frequency modulation on the power grid. According to the method, the photovoltaic energy storage unit and the photovoltaic power supply coordinate to provide the support power, so that the photovoltaic power is fully utilized, and the hidden trouble of loss of the primary frequency modulation power is avoided.

The invention provides a centralized intelligent dispatching method for charging a plug-in hybrid electric vehicle (PHEV), which belongs to the research field of power system demand side response and is especially suitable for a plug-in hybrid electric vehicle (PHEV) of peak load regulation. The invention is established on the basis of a dynamic estimation interpolation concept, and mainly comprises the following parts: real-time information extraction, PHEV dynamic cataloging, load per-unit transformation, boundary condition detection, singular load analysis, load estimation interpolation, load index evaluation and charging cost calculation. The invention can dynamically dispatch the charging time periods of the PHEV, thereby effectively reducing the risk and hidden danger which are brought by the load singularity of the grid side, indirectly lowering the investment into newly arranged generating equipment at the grid side and saving the charging cost at the user side, and realizing the purpose of benefiting both the grid side and the user side.

The invention discloses an electronic detonator controlled through a detonation controller and a control method thereof. Instructions of the control process are designed one by one, so that strict control over the detonation process is achieved. Through the four checking processes of an encoding head and an end code, a check code, a serial number and a unique code, the safety of the electronic detonator which is a dangerous initiating explosive device is improved, and hidden danger caused by misoperation is greatly reduced. By using a special chip specially designed for the electronic detonator, the size and power consumption of the electronic detonator are substantially reduced, miniaturization of the electronic detonator is achieved, and the number of electronic detonators capable of being carried on the detonation controller is greatly increased. Through the special dormancy and awakening function design, the practical power consumption of the electronic detonator in the operation process is further reduced. Through clock calibration operation and an adjustable RC oscillating circuit, microsecond level accurate reckoning of detonation delay time is achieved under the condition that low cost is guaranteed.

The invention discloses an intelligent head-mounted device and an intelligent wearing system. intelligent head-mounted device is used for work assisting, and comprises a control unit for controlling the intelligent head-mounted device, a display unit for displaying information for assisting work, a storage unit for storing various data information in the working process, and a positioning and tracking unit for positioning and tracking operators and operation objects respectively and informing the operators of positioned and tracked information. By means of the intelligent head-mounted device and the intelligent wearing system, operation steps and processes can be standardized, violation operation is avoided, the work efficiency of the operators is improved, and cost is saved.

A digital supersonic wave descale equipment is provided, which is composed of an engine, a USB interface, a digital module, a digital liquid crystal displayer, a supersonic wave power, a cable conduction, a conduction plug-in, a protecting cover, a transducer rear base, a amplitude transformer piezoelectricity ceramic plate, a transducer positive and negative pole, a metal amplitude transformer, a metal energy cohesive block, a media exit and entrance and a fixed flange. The transducer rear base has a plurality of ring amplitude transformer piezoelectricity ceramic plates, which is connected with the rear end of the metal amplitude transformer, the front end of the metal amplitude transformer is connected with rear end of the metal energy cohesive block, after get electricity and covert the electricity energy to mechanical energy and to launch supersonic wave and work on the surface of the object and the inner wall of the equipment and the pipeline in transverse wave and vertical wave. The invention uses the character of conformity of the shaking direction and the communication of the supersonic wave, which is easy to spread the supersonic; besides, the invention uses the cavitation effect of the supersonic wave and the repeat alternation change of positive pressure and negative pressure, and work on the furr on the equipment and in the pipe. The equipment can remove furr in advance, but also can prevent forming dirt, which can make the longer pipeline provided with no furr producing condition, ensures the whole pipeline smooth. The invention saves water resource and electricity energy, improves equipment efficiency, reduces the maintaining cost and prolongs the service life of the equipment.

The invention discloses an unmanned aerial vehicle inspection device and method for a fuel gas pipeline, relates to the field of fuel gas pipelines, and aims to solve the problems of low efficiency, difficulty in realizing inspection, high cost and susceptibility to weather environment existing in an existing natural gas pipeline inspection method. The method comprises the following steps that: aflight control module sends a control command to an unmanned aerial vehicle module, and a multi-rotor unmanned aerial vehicle flies according to the control command; a video recording module transmitsa collected digital image signal to a data receiving module through a wireless image transmission module, and transmits the collected digital image signal to an image processing module and the flightcontrol module; the image processing module splices and fuses received images, and transmits the processed images to an image analyzing module, a display module and the flight control module throughdata buses; the image analyzing module analyzes suspectable accident points, annotates the suspectable accident points on the images, broadcasts the confirmed accident points through an alarm module,and transmits the processed images to the display module for displaying; and the flight control module transmits the received image data to a data service center.

The invention relates to a building waterproof heat-preservation exhaust compound system, which comprises a heat-preservation layer, a waterproof layer, a waterproof protective layer and an exhaust passage, and is characterized in that the heat-preservation layer comprises paved heat-preservation boards, the lower surfaces of the heat-preservation boards are provided with exhaust grooves, the exhaust grooves of all the heat-preservation boards are connected into the exhaust passage, one end of the exhaust passage is connected into a flue through a connecting pipe, and the waterproof layer and the waterproof protective layer are covered on the heat-preservation layer in turn. The building waterproof heat-preservation exhaust compound system has the following advantages that: the system is a heat-preservation waterproof moisture-proof exhaust system for roofs and the floors, which uses a JWG-M type to seal and resist water for EPS and XPS heat-preservation boards, is communicated with the flue through the exhaust grooves of the EPS and XPS heat-preservation boards, and exhausts moist air in time by the pipeline effect of the flue so as to achieve waterproof heat-preservation exhaust integral roofs. Simultaneously, the system removes the vertical exhaust pipes arranged on the roofs and reduces the hidden danger of seepage, and the roofs are smooth to prevent frost heave and gas heave so that the deserved effective service life of the waterproof and heat-preservation roofs is achieved. Besides, the system has good heat-preservation and waterproof effects.

The invention belongs to the technical field of analysis and measurement control, and relates to an ultrashort-period wind speed prediction method based on frequency-domain multi-scale wind speed signal predictability, in order to solve the problems of low prediction accuracy and long model training time caused by the fact that that an existing prediction method does not take the problem about frequency-domain multi-scale predictability into consideration and data dimension selection of an input space in a statistical predication model needs to depend on experience. Adverse impact generated on predictions after superposition due to more steps of high-frequency component predication is prevented by addition of technical steps of predictability analysis and autocorrelation analysis, accuracy of ultrashort-period wind speed prediction is improved, and time for model training is reduced. The method is mainly used for predicating electric field power by a wind power plant so as to help a power grid to make a reasonable dispatch plan and determine spinning reserve, and operation of the power grid is guaranteed safely and economically.

The inventive embodiment discloses a method realizing heartbeat mechanism, which includes the following steps: a server judges whether to need client identification, according to the heartbeat request information of logging response information sending by the client; if need, carry out client identification; if not, return heartbeat response information; and if pass the identification, return heartbeat response information. The invention also discloses a server realizing heartbeat mechanism, which includes a logging response information return unit, used to return logging response information; a client identification judgment unit, used to judge whether to need client identification, and carry out the client identification if so; a client identification unit, used to carry out client identification according to heartbeat request information; a heartbeat request response unit, used to generate heartbeat response information. The invention also discloses a system realizing heartbeat mechanism, which includes a client side and a server side. The invention can realize selective identification on the client side.

The present invention relates to the technological field of operating safety network control of electric locomotive preparation, and in particular to an operating safety monitoring system of the electric locomotive preparation. The monitoring system comprises a monitoring machine (1) which is connected with a main station PLC module (2); the main station PLC module (2) is connected with a communication module (3) through a field bus; the communication module (3) is connected with a slave station PLC module (4); an ID card reader (5), an actuator (6), and a visualized input and output system (7) are respectively connected with the slave station PLC module (4); the actuator (6) and a vehicle roof image camera (8) are correspondingly arranged on a standing column (10) which is arranged on one side of a track for the electric locomotive preparation; the vehicle roof image camera (8) is connected with the monitoring machine (1) through a video board card (9). The monitoring system greatly shortens the time of preparation, improves the working efficiency, guarantees the personal safety of the repairing personnel of the vehicle roof and the safety of the equipment, and reduces the hidden danger which results from insecure factors in the operating process.

The invention discloses a method for rapidly producing pickled chicken claws. The method comprises the following steps: 1, clearing and unfreezing chicken claws; 2, soaking the chicken claws with a liquid having 1-2% of salt and 5-10% of white vinegar and treating by ultrasonic wave; 3, boiling the treated chicken claws together with the liquid having 1-2% of salt and 3-4% of white vinegar for 3-8min; 4, cooling the boiled chicken claws by aseptic cold water added with 2-3% of white vinegar; 5, preparing a flavored soak liquid; 6, adding the cooled chicken claws in the flavored soak liquid and treating by the ultrasonic wave for 60-90min; and 7, vacuum-packing the pickled chicken claws to obtain finished products. The method for rapidly producing pickled chicken claws is characterized in that the soak liquid used by the pickled chicken claws is subjected to a fast cooling technology such that the soak liquid can achieve commercial sterilization, ultrasonic treatment is used in the soaking process for shortening soaking time, an irradiation technology is not used and only biological preservatives or extracts of fruits and vegetables are used as preservatives, and the shelf life is more than one year by computing according to current standards.

A virtual mechanical and true electric control simulation system to be equipped on industrial large-size mechanical comprises industrial control computer formed by tensile force simulator, data collection module and interface communication module; graphic operation station with data virtual-reality module and electric control unit being used to generate various true control signals of said industrial large-size mechanism and to simulate these signals. It is featured as enabling to debug electric control unit of industrial large-size mechanical by carrying out united-debugging of true electric control unit and virtual mechanical simulated by computer.

The invention relates to a fuel-cell power generation system, and in particular relates to a high-power proton exchange membrane fuel-cell power generation system in an underwater isolated air environment. The fuel-cell power generation system comprises a proton exchange membrane fuel cell module, a hydrogen and oxygen storage device, a direct current (DC) / DC conversion unit, a monitoring unit, a heat exchanger, a water tank, a water pump, a valve and a circulating water pipe; a hot water circulating branch comprises a thermostatic hot water tank, a circulating hot water conveying water pump, a proton exchange membrane fuel cell module, a hydrogen storage device and a heat exchanger; a cold water circulating branch comprises a cold water tank, a circulating cold water conveying water pump, a DC / DC conversion unit and an oxygen storage device; a hot and cold water balancing branch comprises a thermostatic hot water tank, a hot water control valve, a balanced hot water conveying water pump, a cold water tank, a cold water control valve and a balanced cold water conveying water pump; one end of the monitoring unit is connected with the thermostatic hot water tank, and the other end of the monitoring unit is connected with the cold water tank. The fuel-cell power generation system has the advantages that the system does not depend on outside air, is safe and reliable, the heat exchange process inside the system is simple and direct, and the heat cycle efficiency is high.

The invention discloses a method for reinforcing the heat transfer efficiency and creep-resistance for pidgeon process reduction tanks, a method for realizing pidgeon process reduction tank automatic charging and discharging, a method for continuous monitoring the pidgeon metal reduction procedure, a method for reclaiming reaction by-product base metals, a vertical reduction tank employing the methods and a pidgeon process reduction furnace constructed by employing the vertical reduction tank.

The invention discloses a wear-resistant rubber material combination of a tire tread and a preparation method thereof. The combination includes: natural rubber, styrene butadiene rubber, butadiene rubber, carbon black, zinc oxide, stearic acid, an anti-aging agent, sulfur, a distillate aromatic extract, a promoter, a reinforcing agent, a tackifier and a dispersing agent, wherein the distillate aromatic extract is a high aromatic hydrocarbon oil, the tackifier is C5 resin and the carbon black is N110 and N234. The combination also can comprise white carbon black. The combination is prepared through a plasticating process, a mixing process and an open mixing process and the like. A rubber material which is prepared from the wear-resistant rubber material combination of the tire tread and through the preparation method thereof has a better tearing strength, a better tensile strength and a better hardness. With the wear-resistant raw materials and a reasonable design of the combination components, hidden dangers on an operator during a production process and on a user during a using process are significantly reduced. The rubber material is higher in safety, is better in economy and is wider in adaptation. The wear-resistant rubber material combination of the tire tread is completely in conformity with related national and industrial requirements. Meanwhile, a usage performance of a tire is far higher than a usage standard requirement of a conventional tire in the prior art. The tire tread has characteristics of high wear resistance and excellent performance.

The invention provides a system and method for testing a wind farm power control strategy. A wind farm power control strategy making module of the system comprises a network data receiving / transmitting module, a data analyzing module, a data-caching module, a data fault tolerance module, an active / reactive control module and a real-time data interaction module, wherein the network data receiving / transmitting module, the data analyzing module, the data-caching module, the data fault tolerance module, the active / reactive control module and the real-time data interaction module are connected in sequence. The output end of the data fault tolerance module is connected with the input end of the real-time data interaction module. Information interface is conducted between the wind farm power control strategy making module and a wind farm grid analog simulation module or an actual grid interface module through the network data receiving / transmitting module. According to the system and method for testing the wind farm power control strategy, wind farm operation information is received in real time, set power values of wind farm units and reactive-load compensation devices are sent to the corresponding wind turbine generator units and the corresponding reactive-load compensation devices in a wind farm at regular intervals according to the different power control strategies, finally a closed loop for testing the control performance of a wind farm active / reactive control system is formed, and the success rate of on-site putting into operation is improved.

The invention discloses a thyristor valve block of a static var compensator (SVC), which comprises one group or more than one group of mutually-tandem anti-parallel thyristor unit modules, resistance-capacitance protection unit modules, plate unit modules, frames and insulators, wherein the anti-parallel thyristor unit modules, the resistance-capacitance protection unit modules and the plate unitmodules are fixed on the frames; each resistance-capacitance protection unit module comprises a capacitor and a resistor; the insulators are fixed on the frames; the insulators are used for supporting and fixing the frame of the thyristor valve block; and each anti-parallel thyristor unit module comprises a thyristor and a profile self-heat dissipation structure, wherein the thyristor and the profile self-heat dissipation structure are pressed and combined together, and the heat dissipation of the thyristor is realized by heat conduction and convection. The thyristor valve block described by the implementation mode in the invention has the advantages of small volume, simple structure assembly and few hidden troubles and is easy to detect and maintain, the valve block can determine the tandem quantity according to the actual capacity conditions of users, and the self-heat dissipation mode is especially suitable for the SVC with medium or small capacity.

The invention relates to a finished product prestress steel strand which comprises at least two prestress rib penetrating devices, prestress ribs in the number the same as the prestress rib penetrating devices and at least two marking plates. Each marking plate is provided with perforation holes matched with the prestress rib penetrating devices in quantity and diameter, one end of each prestress rib penetrates through one perforation hole of one marking plate and is fixed into the corresponding prestress rib penetrating device, and the other end of the corresponding prestress rib penetrates through the perforation hole, at the same position as the preceding perforation hole, of the other marking plate. The finished product prestress steel strand is simple in structure, convenient to operate, low in cost and high in strength, can clamp and fix the prestress ribs, achieves efficient penetrating with the help of the marking plates at the two ends of the steel strand, guarantees that the whole bundle of prestress ribs can be arranged in order one by one in the penetrating process and cannot distort or intertwine, hidden risks of a tension function are reduced, the series size of the penetrating devices meet construction requirements for different quantities of prestress ribs and diverse structures.

The invention discloses a regeneration method of an SCR denitration catalyst. The regeneration method includes: (1), performing ash blowing, cleaning and drying on the SCR denitration catalyst which is waste and deactivated; (2), smashing the waste SCR denitration catalyst which is dried well, adding a strong base solution of 10 wt%-40 wt% in mass concentration, and reacting for 3-8 h at temperature of 150-200 DEG C; (3), adjusting pH value of reaction liquid in the step (2) to 9-10, filtering and separating to obtain recovery liquid containing sodium tungstate and sodium vanadate, and adjusting concentration of vanadium in regeneration liquid to 2-10 g / L; (4), soaking the deactivated SCR denitration catalyst dried well in the step (1) in the regeneration liquid with concentration fixed well in the step (3) at room temperature for regeneration, and taking out before placing for 60 min at room temperature; (5), drying, roasting and cooling a catalyst in the step (4) to obtain a regenerated SCR denitration catalyst. The regeneration method has the advantages of good regeneration effect, low SO2 / SO3 conversion rate and low regeneration cost.

The present invention relates to an ajoene preparation method, which comprises: (1) crushing garlic, and adding an extraction solution to mix so as to obtain a product A; (2) extracting the product A, and then carrying out a filtration and / or centrifugation treatment to obtain a solution, ie., product B; (3) removing the solvent from the product B, and adding vegetable oil to mix so as to obtain a product C; (4) adding the product C to an adsorbent to mix so as to obtain a product D; (5) eluting the product D with an eluant-containing solution to obtain a product E; and (6) removing the solvent from the product E so as to obtain the product containing the high concentration ajoene. According to the new method of the present invention, the defects in the existing preparation method are improved, and the new method has advantages of adaptability to industrial production, short production cycle, environmental protection, high ajoene purity, high utilization of raw material residue, and the like.