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44results about How to "Ensure safe development" patented technology

Safety risk automatic recognition method based on network-distribution production operation plan

Provided is a safety risk automatic recognition method based on a network-distribution production operation plan. The method uses the production operation plan as a carrier, performs comparative analysis of bearing capability between production operation situation and production power, power grid operation mode, on-site operation control and a plurality of factors leading to probability of faulty operation of a power supply enterprise, judges safety risks by means of assessment of matching degree between production task and personnel, time and power, and finally achieves safety risk automatic recognition of the network-distribution production operation plan. The method mainly comprises a safety risk factor recognition module and a safety risk analytical engine, has the advantages of improving power grid safety and power supply reliability, being capable of improving safety risk management level and the like, and has important effects and meanings in safety production prevention mechanism formation, safety risk avoiding and resolving, power grid safe development protection and enterprise safety and harmony promotion.
Owner:JIAXING ELECTRIC POWER BUREAU +1

Human-robot interaction function allocation analysis

Typical inventive practice allocates functions between human and robot, interacting in an unmanned system. Analyses are performed of: mission system; function allocation; and, human-robot interaction automation allocation. Mission system analysis includes: identification of mission system needs, mission system integration parameters, and mission capability configuration; and, mission system report creation (at least partially based on these identifications). Function allocation analysis includes: mission activity analysis; functional allocation report creation (at least partially based on the mission activity analysis); unmanned system safety analysis; and, unmanned system safety report creation (at least partially based on the unmanned system safety analysis). Human-robot interaction automation allocation analysis includes: identification of unmanned system capabilities, unmanned system mission safety considerations, and human-robot interaction configuration; human-robot interaction test-and-evaluation plan creation (at least partially based on these identifications); human-robot interaction performance evaluation; and, human-robot interaction configuration final report creation (at least partially based on the human-robot interaction performance evaluation).
Owner:THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY

Support method used in passing water guide fracture structure in mine exploration

The invention discloses a support method used in passing a water guide fracture structure in mine exploration, belonging to an underground mining method. The support method comprises the following steps: a working roadway is tunneled along a vertical fault direction, temporary support is carried out once when tunneling forwards for 1-2 m, when the working roadway is dug to be at a distance of 5-10 m from the fault, tunneling is stopped, the working roadway is expanded and brushed, a grouting device roadway with the length of 3 m is expanded and brushed, a grouting device is provided, multiple pipe shed holes are formed from the tail end of the grouting device roadway to the fault, the pipe shed holes are located above the top wall of the working roadway, a pipe shed support is arranged in each pipe shed hole, and a grouting pipe is connected with each pipe shed hole, so that cement mortar flows into underground water of a fracture zone; the working roadway is tunneled, when the working roadway is tunneled to be at a distance of 2 m from the fault surface, tunneling is stopped, and multiple anchor rows are driven to a direction of the water guide fracture structure from a place at a distance of 2 m from the fault surface; at last, multiple drainage holes are formed from the tail end face of the working roadway to the fault direction. According to the invention, when the roadway is dug to pass the fracture structure, collapse cannot happen, a digging process is safe, and larger economic benefit can be obtained.
Owner:SANSHANDAO GOLD MINE SHANDONG GOLD MINING LAIZHOU

Wirelessly distributed tunnel prediction detecting device, wirelessly distributed tunnel prediction detecting system and wirelessly distributed tunnel prediction detecting method

The invention provides a wirelessly distributed tunnel prediction detecting device, a wirelessly distributed tunnel prediction detecting system and a wirelessly distributed tunnel prediction detecting method. The wirelessly distributed tunnel prediction detecting device comprises a control operation terminal, wireless data acquisition units, earthquake reflected wave receiving devices and earthquake wave excitation devices, wherein output ends of the earthquake wave excitation devices and output ends of the earthquake reflected wave receiving devices are respectively connected with input ends of the wireless data acquisition units, and output ends of the wireless data acquisition units are connected with an input end of the control operation terminal. Via a wireless distributed instrument (24-bit analog to digital) and a hypocenter hammering working mode, high-precision signals can be collected conveniently and quickly, and safety in working can be guaranteed; via a testing mode of a three-mode two-side hammering observation system, elastic wave field data in a three-dimensional space can be effectively obtained to image high-precision three-dimensional image; furthermore, the wirelessly distributed tunnel prediction detecting device has the advantages of simplified structure, low energy consumption, low production cost, simple distribution, high detecting precision, high measuring efficiency and the like.
Owner:YUNNAN AEROSPACE ENG GEOPHYSICAL SURVEY INSPECTION

Finger like slug flow dissipation and separation device

The invention discloses a finger like slug flow dissipation and separation device. The device mainly comprises an inlet dividing pipe, finger like branch pipes, a gas collecting confluence pipe and a liquid collecting confluence pipe. In the inlet dividing pipe, a liquid slug is evenly divided into multiple streams of two-phase flow which flow downstream, and the speed and the momentum are reduced; one part of the two-phase flow which flows into the finger like branch pipes directly flows into a gas-phase jacking pipe, so that the work load of a declination pipe is relieved, and the other part of the two-phase flow flows into the declination pipe and layered dissipation is completed; in a liquid-phase bottom pipe with the diameter expanded, the flow velocity of the two-phase flow further decreases; in a standing pipe, a space exchange is conducted between the liquid phase of the gas-phase jacking pipe and the gas phase of the liquid-phase bottom pipe; finally, both the gas phase and the liquid phase after separation are conveyed downstream in a single-phase flow state through the gas collecting confluence pipe and the liquid collecting confluence pipe respectively. According to the device, the pipe structure is compact, the separation efficiency is high, the pressure bearing capacity is high, impact resistance is high, and the cost is low, so that it is ensured that a deepwater gas field is safely employed and the economic benefit is improved.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Fingerprint encryption template protection method and system based on orthogonal decomposition

The invention relates to a fingerprint encryption template protection method and system based on orthogonal decomposition. In the process of registration, fingerprint acquisition, preprocessing and fingerprint feature extraction based on orthogonal decomposition are included, and dividing orthogonal codes in an orthogonal decomposition domain to obtain a fingerprint feature encryption operation domain and a feature matching operation domain independent of each other and then merging ciphertext features and matching features by orthogonal synthesis are included; a fingerprint encryption template is stored, and an orthogonally synthesized ciphertext template is stored into a library. In the process of authentication, after fingerprint acquisition and corresponding preprocessing operation are carried out, fingerprint feature extraction based on orthogonal decomposition is also carried out, feature matching is then carried out, and extracting fingerprint feature s in the feature matching operation domain by orthogonal decomposition and comparing with a feature matching domain of a stored template to carry out identity authentication. The invention can effectively protect fingerprint data privacy, has high security, and also has high safety and universality.
Owner:WUHAN UNIV

Method for analyzing a logic circuit

A method for a logic circuit including a plurality of components and channels which are each assigned functional properties in a circuit model to simulate how the logic circuit functions, where the circuit model, in a section of the method, is expanded by mechanisms for security analysis, and where in a further section of the method, the following method steps are implemented via a simulation unit, i.e., check whether the security property of the respective component and / or the respective channel corresponds to the security requirement of the security-relevant data and generate a security risk report if it does not correspond thereto, apply a modeled attack to a component and / or to a channel, and determine a vulnerability of the security property of the respective component and / or of the respective channel to the applied attack, and if there is vulnerability of the security property, generate an attack report.
Owner:SIEMENS AG

Method and device for realizing PHS wireless network positioning service hierarchical authentication

InactiveCN1780459AImprove securityPrevent malicious IP connection attacksSecurity arrangementIp addressSecurity level
Based on existing location service authentication standard, two authentication ways, the IP address connection authentication and location service type authentication, are added into it to improve the security level of location service in PHS wireless network. The invention can secure the location system in four aspects of access to system, identifying user, marking type and privately authorizing.
Owner:晋江市高新技术开发办公室

Midlet Signing and Revocatoin

The present invention is related to a method of securing integrity and authenticating origin and privileges of a piece of code. According to the invention, a method of securing integrity and authenticating origin and privileges of a piece of code in a communication network by digitally signing said piece of code, is characterized by the steps of: providing an aggregator (C), which is a holder of a valid signing certificate, —submitting a developer material to the aggregator, inserting a revocation code into the developer material, building a complete piece of code using the developer material and the revocation code, digitally signing the complete piece of code using the certificate held by the aggregator, making the digitally signed complete piece of code retrievable to the holder (B) of the developer material, providing a server (C2) for authenticating privileges of the digitally signed complete piece of code, executing the revocation code and checking with the server whether the privileges of the digitally signed complete piece of code have not been revoked.
Owner:TELEFON AB LM ERICSSON (PUBL)

Ocean platform oil-gas leakage explosion coupling experiment platform

The invention relates to an ocean platform oil-gas leakage explosion coupling experiment platform, which comprises an oil and gas leakage diffusion system, a wind generation system, a wave generationsystem, a deepwater semi-submersible platform simulation system and a data acquisition and control system; oil gas leakage diffusion occurs in the oil gas leakage diffusion system; the oil gas is distributed around the deepwater semi-submersible platform; a sea wind environment is simulated through the wind generation system; a sea wave environment is simulated through the wind generation system;diffusion data of oil gas on the platform are collected through a concentration measuring instrument and an oil gas sampling probe on a monitoring point; the control terminal can control the detonating device at the wellhead to carry out an oil gas burning explosion experiment; overpressure data and flame development images of oil gas burning explosion are obtained through the pressure sensors, the thermocouples, the concentration measuring instruments and the high-speed cameras on the monitoring points, and collected diffusion data and burning explosion data are processed through the information processor and displayed on the control terminal. The experiment platform considers the influence of platform congestion, sea wind and sea waves, and accords with engineering application. Meanwhile, the experiment platform is high in safety coefficient and easy to operate, and the experiment platform is provided for risk assessment of oil and gas leakage diffusion of the deepwater semi-submersible platform.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Three-dimensional super-long rigid connection pipeline system with buoyancy devices

The invention discloses a three-dimensional super-long rigid connection pipeline system with buoyancy devices. The three-dimensional super-long rigid connection pipeline system is used for connecting a wellhead Christmas tree and a manifold, and comprises a connection pipeline body, quick connectors arranged on two end sides of the connection pipeline body, the multiple buoyancy devices arranged on the connection pipeline body and a plurality of vortex-induced vibration suppression devices arranged on the connection pipeline body. The two quick connectors are correspondingly connected with the wellhead Christmas tree and the manifold, and the connection pipeline body is formed by combining and changing a plurality of straight pipe nipples and a plurality of elbows at different positions in a three-dimensional space. According to the three-dimensional super-long rigid connection pipeline system, different assemblies of the whole system are designed, the requirements for various wellhead oil reservoir characteristics, spatial arrangement and the like are met, and the super-long rigid connection pipeline system which is provided with the vortex-induced vibration suppression devices and the buoyancy devices and is located in the three-dimensional space can greatly guarantee safe development and production of a deepwater oil and gas field; and the three-dimensional super-long rigid connection pipeline system with the buoyancy devices has the advantages of reliable structural strength and fatigue life, high cost performance and convenience in installation.
Owner:OFFSHORE OIL ENG

Intrinsically safe high-purity high-pressure hydrogen environment material compatibility test system and method

The invention discloses an intrinsically safe high-purity high-pressure hydrogen environment material compatibility test system and method, and relates to the technical field of material mechanical property test equipment development, and the intrinsically safe high-purity high-pressure hydrogen environment material compatibility test system comprises: a mechanical property test module; a gas supply module; an exhaust module; a vacuumizing module; and online monitoring equipment which is electrically connected with the mechanical property testing module, the gas supply module, the exhaust module and the vacuumizing module, so as to vacuumize, purge, provide hydrogen or exhaust the gas pipeline according to a feedback signal of the hydrogen purity sensor. According to the scheme, hydrogen purity detection is carried out on the testing device, hydrogen purity information is uploaded to the online monitoring equipment, purging replacement of the gas pipeline is controlled through autonomous feedback, online monitoring and automatic purging replacement of the hydrogen purity are achieved, and it is ensured that the purity of hydrogen entering the environment box meets the requirement.
Owner:SOUTH CHINA UNIV OF TECH

Determination method for guaranteeing hot line work safety by additionally arranging insulation board at interphase of busbars of transformer substation

ActiveCN102916357AHigh dielectric strengthSatisfy the safety requirements of live workingSwitchgearTransformerBusbar
The invention relates to a determination method for guaranteeing hot line work safety by additionally arranging insulation board at interphase of busbars of a transformer substation. The determination method comprises the following steps of: (1) analyzing the thickness of an insulation board; (2) determining the mounting position of the insulation board; (3) determining the dimension of the insulation board; and (4) analyzing the effective shield range of the insulation board. According to the invention, when the hot line work is carried out at the interphase of the busbars of 110kC and 220kV transformer substations, the insulation board is determined to mounted at a place 0.3m and 0.5m away from the busbars of the adjacent side phases respectively; the thickness of the insulation board is not obliged to be smaller than 5mm; the height and the width of the 110kC basbar insulation board are not smaller than 3.1m and 1.9m respectively; the height and the width of the 220kV busbar insulation board are not smaller than 3.7m and 2.5m respectively; and the lap width is not smaller than 0.2m. In order to solve the problem of insufficient gap distance in the hot line work at the interphase of the busbars of the 110kC and 220kV transformer substations, the systemic and feasible scheme is provided and has important theoretical values and practical significance in guaranteeing the safe and stable operation of the 110kC and 220kV transformer substations.
Owner:CHINA ELECTRIC POWER RES INST +1

Underwater vehicle thrust by hydrogen produced through sodium borohydride hydrolysis

InactiveCN102050220BFast hydrogen production by hydrolysisHigh accelerationHydrogen productionPropulsive elementsCombustionHydrogen
The invention relates to a device for underwater carrying at a high speed, and aims to provide an underwater vehicle thrust by hydrogen produced through sodium borohydride hydrolysis. A propulsion system of the underwater vehicle comprises a water inlet arranged at a head of a ship body, an air spraying tube arranged at a tail part of the ship body, a sodium borohydride container and a tapered reactor, wherein the water inlet is a pipeline partly extending to the front end of the sodium borohydride container; a pipe wall of the pipeline extending into the container is provided with a small hole; a back part of the sodium borohydride container is a filter screen; a front end of the tapered reactor is connected to a back part of the sodium borohydride container by a clapboard provided with a plurality of through holes; the back part of the tapered reactor is connected to the air spraying tube by a pipeline; sodium borohydride powders are filled in the sodium borohydride container; and the tapered reactor is filled with a multi-hole three-dimensional catalyst. The speed for producing hydrogen through sodium borohydride hydrolysis is fast, so that the underwater vehicle obtains a high accelerated speed; combustion is not needed; the control is easy; and the propulsion speed is high. Wide application prospects in marine science survey, sea bottom survey, sea bottom cable detection and the like are provided.
Owner:ZHEJIANG UNIV

Foundation pit water burst emergency processing construction method based on silt riprap stratum

InactiveCN109098197AAvoid foundation pit collapseReduce staffingFoundation engineeringEngineeringSilt
The invention discloses a foundation pit water burstemergency processing construction method based on a silt riprap stratum. The foundation pit water burst emergency processing construction method comprises the following steps that S1, power is turned off, and Personnel withdraw; S2, water burst is back pressured; S3, water burst is guided; S4, a water burst point is reinforced; S5, a hole is drilled and guniting is conducted; and S6, water burst site monitoring is conducted. A foundation pit water burst emergency can be processed in time, and foundation pit collapsing is avoided. Redundant staffing can be reduced, and therefore post allocation can be more reasonable. Material delivery is more reasonable. The cost is saved. The method is conducive to filling the blank of the water burst emergency rescue technology, can improve the emergency rescue technology of water burst and other accidents occurring in the process of foundation pit excavation, and therefore the most effective rescuecan be organized when emergency occurs during the foundation pit construction process.
Owner:CHINA POWER CONSTR SOUTHERN CONSTR INVESTMENT CO LTD +2

Site selection method and system for underground neutron energy power station

The invention provides a site selection method and system for an underground neutron energy power station. The site selection method for underground neutron power plants includes: obtaining the evaluation value corresponding to each ranking of each relevant geological factor and the number of people corresponding to each ranking of each relevant geological factor; According to the evaluation value of each relevant geological factor and the number of people corresponding to each ranking of each relevant geological factor, calculate the weight of each relevant geological factor; according to the multiple evaluation conditions corresponding to each relevant geological factor of each candidate site, obtain the The evaluation value of each relevant geological factor of the site; according to the weight of each relevant geological factor and the evaluation value of each relevant geological factor of each candidate site, calculate the comprehensive evaluation value of each candidate site; The maximum value is selected from the comprehensive evaluation value of the site selection, and the site to be selected corresponding to the maximum value is used as the address of the underground neutron energy power station, so as to improve the efficiency of site selection evaluation and promote the safe development of clean energy.
Owner:何满潮

Remote control emergency brake valve for railway propulsion vehicle

The invention discloses a remote control emergency brake valve for a railway propulsion vehicle. The remote control emergency brake valve comprises a valve body, a valve element, a coil, a control circuit board, a relay and a power source, an air duct penetrating through the two ends is formed in the valve body, one end of the air duct is used for being connected with a train main air pipe, and the other end of the air duct is used for exhausting air; the power supply is electrically connected with the control circuit board, the control circuit board is electrically connected with the relay, and the relay is electrically connected with the coil; and the coil is arranged on the upper end face of the valve body, one end of the valve element penetrates through the coil and extends into the air duct from the upper end face of the valve body to seal the air duct, one end of the valve element extends out of the coil, and when the coil is powered on, the coil can drive the valve element to move upwards to open the air duct. The control circuit board is used for receiving a control signal transmitted by the remote controller, controlling the relay to be closed according to the control signal and further controlling the coil to be powered on or off. The remote control emergency brake valve is convenient to operate, potential safety hazards are reduced, shunting operation safety and personal safety are guaranteed, safe development of companies is promoted, and great economic benefits are achieved.
Owner:陕西榆横铁路有限责任公司

Determination method for installing insulation board between pipe and busbar phases in substation to ensure safety of live work

ActiveCN102916357BHigh dielectric strengthSatisfy the safety requirements of live workingSwitchgearTransformerBusbar
The invention relates to a determination method for guaranteeing hot line work safety by additionally arranging insulation board at interphase of busbars of a transformer substation. The determination method comprises the following steps of: (1) analyzing the thickness of an insulation board; (2) determining the mounting position of the insulation board; (3) determining the dimension of the insulation board; and (4) analyzing the effective shield range of the insulation board. According to the invention, when the hot line work is carried out at the interphase of the busbars of 110kC and 220kV transformer substations, the insulation board is determined to mounted at a place 0.3m and 0.5m away from the busbars of the adjacent side phases respectively; the thickness of the insulation board is not obliged to be smaller than 5mm; the height and the width of the 110kC basbar insulation board are not smaller than 3.1m and 1.9m respectively; the height and the width of the 220kV busbar insulation board are not smaller than 3.7m and 2.5m respectively; and the lap width is not smaller than 0.2m. In order to solve the problem of insufficient gap distance in the hot line work at the interphase of the busbars of the 110kC and 220kV transformer substations, the systemic and feasible scheme is provided and has important theoretical values and practical significance in guaranteeing the safe and stable operation of the 110kC and 220kV transformer substations.
Owner:CHINA ELECTRIC POWER RES INST +1

Support method used in passing water guide fracture structure in mine exploration

The invention discloses a support method used in passing a water guide fracture structure in mine exploration, belonging to an underground mining method. The support method comprises the following steps: a working roadway is tunneled along a vertical fault direction, temporary support is carried out once when tunneling forwards for 1-2 m, when the working roadway is dug to be at a distance of 5-10 m from the fault, tunneling is stopped, the working roadway is expanded and brushed, a grouting device roadway with the length of 3 m is expanded and brushed, a grouting device is provided, multiple pipe shed holes are formed from the tail end of the grouting device roadway to the fault, the pipe shed holes are located above the top wall of the working roadway, a pipe shed support is arranged in each pipe shed hole, and a grouting pipe is connected with each pipe shed hole, so that cement mortar flows into underground water of a fracture zone; the working roadway is tunneled, when the working roadway is tunneled to be at a distance of 2 m from the fault surface, tunneling is stopped, and multiple anchor rows are driven to a direction of the water guide fracture structure from a place at a distance of 2 m from the fault surface; at last, multiple drainage holes are formed from the tail end face of the working roadway to the fault direction. According to the invention, when the roadway is dug to pass the fracture structure, collapse cannot happen, a digging process is safe, and larger economic benefit can be obtained.
Owner:SANSHANDAO GOLD MINE SHANDONG GOLD MINING LAIZHOU

10 kV medium voltage cable hot-line work safety analysis method and system

The invention discloses a 10 kV medium voltage cable hot-line work safety analysis method and system. The method comprises the steps that 1, based on a PSCAD simulation platform, a disconnection no-load cable model is constructed, cable parameter data of cables of multiple specifications is determined and used as the input of the disconnection no-load cable model, and a set of no-load capacitance current data is obtained through stimulation; 2, based on a MATLAB, by using the cable parameter data of the cables of multiple specifications, the no-load capacitance current data obtained after simulation is subjected to linear fitting, and a fitted model is obtained; 3, the cable parameter data of a cable to be evaluated is acquired and input into the fitted model so that the simulated capacitance current of the cable to be evaluated can be obtained; 4, the simulated capacitance current is used as a reference quantity, and an arc suppression measure is prompted according to an arc suppression strategy. The 10 kV medium voltage cable hot-line work safety analysis method and system can provide corresponding theoretical guidance basis for hot-line work and guarantee safe implement of the cable hot-line work.
Owner:ZHAOTONG POWER SUPPLYING BUREAU OF YUNNAN POWER GRID
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