91results about How to "Avoid accident risk" patented technology

The invention discloses a multi-business-object-oriented distribution network warning information integrated rational analysis method, which comprises the following steps that: 1, distribution network warning information is classified and sorted on the basis of different business objects; 2, a warning rule is defined according to distribution network business object requirements; 3, an association rule is defined, and the association rule is the logic association among a plurality of pieces of warning information; 4, the warning information with the logic association is integrated into warning events according to the association rule, and an expert rational rule base is built; 5, a power distribution automation system main station collects all warning information of an operating distribution network, compares the expert rational rule base and obtains all warning events generated by all collected warning information; and 6, the warning events are further analyzed, and the reasons, the caused influence and the corresponding solutions of the generated warning events are obtained. The multi-business-object-oriented distribution network warning information integrated rational analysis method provided by the invention realizes the classification and the sorting on the distribution network information, and also realizes the auxiliary fault judgment and handling.

The invention relates to a grid (10) adapted to be arranged on a patient's skin to provide positioning information in CT-guided percutaneous operations. In one embodiment, the grid (10) comprises a flat and generally rectangular frame having two long sides (11a, 11b) and two short sides (12a, 12b), with a number of transverse ribs (13, 14) being provided between the two long sides (11a, 11b). According to the invention, at least some of the transverse ribs (13, 14) are elastic. By using his / her fingers, a doctor can thereby separate two neighbouring ribs (13, 14) such that an opening is provided in the grid (10). Through this opening access is obtained to the skin area under the grid (10), or the grid (10) can be threaded over and removed from a medical instrument which, between two adjacent ribs (13, 14), is inserted into the patient's body.

A wiping article that has excellent portability and, when necessary, that can be set to a wet state for use. The wiping article is formed by compressing a sheet material, which has a shape and size that can be used for hand wiping etc., into a small size and receiving it in a pack. The pack (11) has a flat structure, and the inside of the pack is partitioned into at least two chambers (12, 13) by a partition belt. The partition belt can seal liquid (17) in and has strength and structure that lead to breakage of the belt under pressure exceeding a predetermined level. The sheet material (10) is compressed and formed into a shape and size that can be used for hand wiping etc. when the liquid is impregnated into the material to swell and expand it. The sheet material is placed in one (12) of the two chambers of the pack, and the liquid that is impregnated into the sheet material to swell it when the partition belt is broken is placed in the other chamber (13).

The invention provides a queue jumping early warning system and method. The queue jumping early warning system comprises a detection part arranged on an own vehicle and used for measuring the relativedistances between other vehicles around the own vehicle and the own vehicle, and a computing control part used for conducting queue jumping computing control of the following vehicles on the basis ofdetected data of the detection part. Other vehicles and the road environment change can be detected and analyzed in real time through the detection part, the traveling tracks of other vehicles are predicted, a queue jumping vehicle intending to overtake and change the lane into the lane of the own vehicle from the rear side is judged, and an early warning and a prompt are given to a driver of theown vehicle in a proper mode. The driver can be warned about the danger in advance, prejudgment time is prolonged, and risks of emergency braking and accidents are reduced.

The invention designs a novel multifunctional motorcycle helmet and belongs to the technical field of motorcycle safety driving. The novel multifunctional motorcycle helmet comprises a buffer module,a head-up display module, a communication module, a communication module and a ventilation temperature control module, wherein the buffer module is formed by a magnetorheological energy absorber. Thehelmet has the advantages that the buffer layer of the helmet is formed by the arc-shaped magnetorheological energy absorber and can absorb most of impact energy in accidents; a GPS and a Bluetooth connecting device in the communication module achieve positioning, speed measuring and connection with the mobile phone of a user; an impact sensor is mounted on the inner side of the shell of the helmet and used for detecting impact; an image generator in the head-up display module is connected with a GPS speed measurer, and a semitransparent screen at the right bottom of goggles can display speed;a temperature control device in a ventilation port can regulate the internal temperature of the helmet; a storage battery is mounted at the rear position of the helmet and used for supplying power for the four modules. The helmet is better in protection and service than a traditional motorcycle helmet.

A combination of an agricultural apparatus and a hauling or towing vehicle is provided. The hauling or towing vehicle has a power take-off shaft that can be activated and deactivated selectively by means of a coupling. The apparatus comprises drivable elements that can be connected to the power take-off shaft. An electronic control unit of the apparatus is connected via a bus to an electronic control unit of the hauling or towing vehicle. The electronic control unit of the apparatus is connected to a sensor for detecting a living creature present in a danger zone of the machine. In the case that a living creature is detected in the danger zone, the electronic control unit of the apparatus causes the electronic control unit of the hauling or towing vehicle to order an actuator to disconnect the coupling of the power take-off shaft and / or to prevent the actuator from closing the coupling.

The invention relates to a commutation opportunity determination method and a commutation system for three-phase unbalanced commutation. The method comprises the steps of converting a multi-objectiveoptimization problem into a single-objective optimization model through a constraint method, solving an optimal solution set of the single-objective optimization model in combination with a genetic algorithm and a simulated annealing algorithm, determining an optimal solution in the optimal solution set, determining the optimal solution as a commutation opportunity, and determining a to-be-switched load and a switching sequence thereof based on the commutation opportunity so as to carry out switching. According to the method, multiple targets are converted into one target, the calculation efficiency is improved, the number of generated current optimal solutions is controlled by adjusting breakpoints of constraint conditions, and high objectivity is achieved. Secondly, through combination of a genetic algorithm and a simulated annealing algorithm, a global optimal solution can be rapidly and accurately obtained, safety risks caused by three-phase imbalance are effectively avoided, and the level of power grid operation planning is improved. In addition, three-phase imbalance states of transformers of different types and different capacities can be analyzed, and the application rangeis wide.

The invention relates to a molten salt reactor waste heat cooling device. According to the device, an air natural circulation system and a molten salt natural circulation system are arranged in an immersed plate type air cooler inside a molten salt pond for heat exchange; the air cooler comprises an air cooler core and an air inlet section and an air outlet section which are respectively positioned at the tail ends of the air cooler core in the horizontal direction; the air cooler core is formed by a plurality of mutually stacked heat conduction plates; the heat conduction plates are welded in pairs at the tail ends in the vertical direction; molten salt channels are formed among adjacent heat conduction plates which are not welded at the tail ends in the vertical direction; the heat conduction plates are welded in pairs at the tail ends in the horizontal direction; air channels are formed among adjacent heat conduction plates which are not welded at the tail ends in the horizontal direction; the molten salt and the air are respectively formed into cross flowing for heat exchange in the molten salt channels and the air channels. The device adopts a passive design idea, no external power is needed, and passive discharge of the waste heat of a molten salt reactor is achieved only through natural circulation of air and the molten salt.

The invention relates to a method used to realize quick search of electric leakage in a low voltage circuit. The method, which eliminates the risk of breach of regulation and avoids the risk of accident during returning a residual current operated protective device, provides a systematic, scientific and effective method, thereby greatly increasing fault detection rate and saving a great amount of manpower and material resources. The method comprises the following steps: firstly, a phase line L1, a phase line L2, a phase line L3, a zero line N and the distribution transform low-voltage part of the power source of the prior system are completely cut off at K; a 220(380) V / 50V safety isolating transformer is adopted with the primary side connected with the power source; moreover, one end of the secondary side of the transformer is earthed, while other ends are in shorted connection with the phase line L1, the phase line L2, the phase line L3, the zero line N of an outlet line and then are connected with each other; then, a clip-on ammeter is adopted to respectively detect the leakage current of the four lines, thereby judging the line with electric leakage fault according to the value of I1, I2, I3 and IN; finally, the fault point of the line with electric leakage fault is detected according to the golden cut method.

The invention provides an eye movement auxiliary voice interaction method based on a car-borne Head Up Display (HUD). The eye movement auxiliary voice interaction method comprises the following steps that in an original state, the HUD is in a closed state; a car-borne voice recognition system transforms HUD open command voice obtained through a microphone into an HUD open command; after the HUD receives the HUD open command of the car-borne voice recognition system, the HUD is started, and a HUD interface functional zone is projected to front windshield; an eye movement tracking system is corrected; when the eye movement tracking system recognizes that the sight line of a driver enters the HUD interface functional zone, the car-borne voice recognition system obtains a voice control command through the microphone within a certain time, and corresponding operation is carried out according to content corresponding to the voice control command; otherwise, the HUD is stopped and returns the original state. According to the eye movement auxiliary voice interaction method, by collecting eye movement of the driver to control a vehicle based on the HUD and voice auxiliary, hands do not need to leave a steering wheel in the interactive process, the sight line does not need to leave the visual field of a driving road, and accident risks brought when the driver pays attention to key operation are avoided.

The invention discloses an assembling method for a large-megawatt wind power gear box outer-ring-free cylindrical roller bearing. The assembling method comprises the steps that firstly, a planet wheel is horizontally corrected; secondly, a bearing sling is assembled; thirdly, a rolling element is tightened through a rubber rope, and radial deflection of the rolling element is eliminated; fourthly, the outer-ring-free cylindrical roller bearing is hoisted; fifthly, the outer-ring-free cylindrical roller bearing and an inner hole of the planet wheel are aligned in the axial direction, then, the bearing is rotated, it is guaranteed that the rolling element makes even contact with the rollaway nest face of the inner hole of the planet wheel and the rolling element falls into the inner hole of the planet wheel and is assembled in place; sixthly, the bearing sling is disassembled; seventhly, a pressing plate is used for pressing an assembled outer-ring-free cylindrical roller bearing, and the planet wheel is turned by 180 degrees and horizontally put on a contour cushion block; eighthly, the third step, the fourth step, the fifth step and the sixth step are repeatedly executed, and assembling of a second outer-ring-free cylindrical roller bearing and an inner hole of the other segment of the planet wheel is completed. The assembling method can effectively solve the problems of bearing hoisting and alignment of the inner holes of the planet wheel during assembling and can effectively avoid the situation that the rollaway nest face is damaged by assembling clamping and accident risks caused when the bearing is carried manually.

The safety device comprises an electric circuit comprising at least a current-limiting fuse and a current switch connected in series with the fuse. The switch has a moving contact which can be actuated by a drive mechanism to open or close the switch. The mechanism is arranged so as to prevent the fuse(s) being disengaged or engaged while the switch is closed and it has a drive lever occupying a first position or a second position respectively when the switch is closed and when it is open. Each fuse has a handle member which is either masked or uncovered depending on the position of the lever, the lever being designed to cover the handle member so as to mask it.

Machine to join or tape two edges of a fabric by means of adhesive comprising a welding unit to which the two edges of fabric are fed, adjacent or one overlapping the other, along a determinate work plane (P), which is suitable to melt the adhesive exerting a pressing on the edges in order to determine the operation of joining or taping of the two sides. The welding unit comprises: a first welding device disposed above the work plane (P) and comprising a first tape, a first movement unit to move the first tape and a first heating unit to heat the first tape; a second welding device disposed under the work plane (P) and comprising a second tape, a second movement unit to move the second tape and a second heating unit to heat the second tape. A support arm is disposed under the work plane (P), the second welding device is assembled inside the support arm. The support arm comprises cooling means suitable to cool its external surface which, during normal use, would be heated by the second heating unit of the second welding device.

It offers that a power supply unit with a safety device and a massage machine provided with the power supply unit that maintains off-state in the power ON / OFF switch of the main body of the message machine so as not to be unlocked easily and also prevents children and infants from operating it easily. A power switch supply button 22a and a safety device 3a that locks ON / OFF switch in off-state are equipped in the main body of the massage chair power supply unit 2a of the massage machine main body 1a. When a power supply switch button 22a is in off-state, the energization of a power supply cord 24a and the power supply switch button 22a are disabled, so that even if the power supply switch button 22a is switched on, the power supply to massage machine main body 1a is locked in off-state. The said safety device 3a means that a keylock that has key insertion part, a card reader unit, a ten-key unit and a fingerprint recognition.

A system for inverter operation control in an emergency situation is provided, the system including: an inverter; an upper level controller configured to set a first operation mode for a normal operation of the inverter and a second operation mode in response to an emergency situation of the inverter; and a controller configured to control an operation of the inverter, by stopping an operation of the inverter when a measured voltage value or a measured current value of the inverter satisfies a first condition when the first operation mode is set, and by maintaining an operation of the inverter even when a measured voltage value or a measured current value of the inverter satisfies a first condition when the second operation mode is set.

The invention relates to a nitrogen spring structure which comprises a cylinder body, a plunger rod and a middle sleeve. The cylinder body is provided with a cylinder body hole. The middle sleeve is connected with the upper portion of the inner wall of the cylinder hole in a sealed manner. The plunger rod is connected with an inner hole of the middle sleeve in a sealed and sliding manner. The cylinder hole of the cylinder body is filled with high-pressure nitrogen. The inner end face of the plunger rod is provided with step type bosses of at least two steps extending outwards. The inner wall of the middle sleeve is provided with a backstop boss extending inwards and a limiting boss. A Y-shaped sealing ring is arranged in a sealing ring containing groove. A ring-shaped pressure relief thin-wall boss is arranged on the periphery of the middle sleeve. The outer end face of the plunger rod is provided with at least one stress face forming an inclination angle relative to the outer end face. An installing hole is formed in the bottom of the cylinder hole of the cylinder body. A plug installing base is fixed to the installing hole. The plug installing base is provided with a plug blind hole facing the cylinder hole. The nitrogen spring structure can prevent the cylinder body from cracking, prevent the plunger rod from breaking and flying out and prevent unbalance loading, and has a function of plunger rod overtravel protection.

Disclosed are a system and a method for compositing various images that minimize a brightness difference in connection areas of various images by using a clustering technique at the time of compositing various images. The method for compositing various images may include receiving two or more input images; compositing the two or more input images into one composite image; calculating a brightness distribution degree; calculating representative brightness values; determining clustering; calculating a correction target value; and calculating a correction value of an increase / decrease curve.

The invention relates to a branch vehicle afflux early warning system for vehicles coming and going on a main road. The system comprises a branch vehicle detection system used for detecting branch vehicle appearance information through two-dimensional laser radar detection equipment, and a main road intelligent early warning sign used for prompting a main road driving vehicle through a detection result. The branch road vehicle detection system is arranged at the edge of a branch road and is 30-50 meters away from a branch road intersection, the two-dimensional laser radar detection equipment is vertically downward, and is installed facing a road, the main road intelligent early warning sign is arranged on a main road, is about 5-10 meters away from the branch road intersection and is arranged facing the direction of coming vehicles of the main road, and the branch road vehicle detection system is in real-time communication with the main road intelligent early warning sign in wired andwireless transmission modes. Compared with the prior art, the system has the advantages of stable, accurate, efficient and all-weather detection and the like.

The invention relates to an agent metering device. The device comprises an agent barrel, a metering mechanism, a discharging barrel and a reset mechanism. An agent storage cavity is formed in the agent barrel; the metering mechanism comprises a metering plate, an agent amount fine adjustment plate and an adjusting piece; the metering plate is mounted at the bottom of the agent barrel, and a metering groove which is communicated with the agent storage cavity and extends to one side of the metering plate is formed in the plate surface; the agent amount fine adjustment plate is arranged in the metering groove in a sliding manner; and the adjusting piece is connected with the agent amount fine adjustment plate and used for driving the agent amount fine adjustment plate to move so as to adjust the size of the metering groove. The agent metering device has the beneficial effects that the agent is stored in the agent barrel, and when metering is needed, the size of the metering groove can be changed by pushing the adjusting piece, so that the weighing range of the agent is adjusted, and the controllability is higher; and after the agent is metered, direct contact between people and the agent is effectively avoided in the whole metering process, so that the safety is ensured.

The present invention provides an injection nozzle introduction device for a smelting furnace, the device comprising: a body coupled and arranged on one side of a smelting furnace to support an injection nozzle such that the same can slide in a horizontal state; a driving unit coupled and installed on the body to generate a rotating driving force; a push movement unit which is connected to the driving unit while being installed on the body, and which receives a rotating driving force transferred from the driving unit, converts the same into a straight movement, and then causes the injection nozzle to be pushed towards the interior of the smelting furnace; and a driving control unit for grasping a horizontal movement position resulting from the straight movement of the push movement unit and then controlling operation of the driving unit. Such an injection nozzle introduction device for a smelting furnace is configured such that the driving control unit controls the driving unit to operate at every predetermined time, and the push movement unit automatically introduces the injection nozzle into the smelting furnace periodically, thereby facilitating the process of introducing the injection nozzle and preventing danger of any accidents.

The invention discloses an NTC temperature measurement circuit, a breathing machine and a breathing machine power-on self-test method. The NTC temperature measurement circuit comprises a temperature measurement module, a switch module, a control module and a detection module, the control module is electrically connected with the temperature measurement module, the detection module and the switch module respectively; the switch module is electrically connected with the temperature measurement module and the detection module. The temperature measurement module is used for monitoring the temperature of a measured part in the heating loop and obtaining first temperature data; the switch module is used for switching on / off between the temperature measurement module and the detection module according to the enable signal outputted by the control module; the detection module is used for correcting the temperature of the temperature detection circuit and obtaining second temperature data; the control module is used for acquiring the first temperature data and adjusting the temperature of the measured part in the heating loop according to the first temperature data, and is used for acquiring the second temperature data and judging the accuracy of temperature measurement according to the second temperature data. According to the invention, the power-on self-test is realized, the accuracy of temperature measurement is ensured, and the detection cost is reduced.

The invention discloses a safety monitoring system based on an escort transportation cash box circulation service. The safety monitoring system comprises a central server, vault cash box scanning equipment, on-vehicle cash box scanning equipment and an intelligent handover handheld terminal. The central server is used for storing related data in an escort transportation operation and has a related service logic function. The vault cash box scanning equipment is used for scanning cash boxes in a vault in real time and transmits a scanning result to the central server. The vault cash box scanning equipment is used for transmitting the scanned cash box information to the central server every certain time period. The intelligent handover handheld terminal is used for a cash box handover operation between escort personnel and bank outlet personnel. The safety monitoring system performs real-time monitoring for scanning data of all cash boxes in a working flow and performs verification and comparison according to cash box change in each delivering out of the vault and each storing into the vault and handover completion. When an abnormity occurs, the system can perform in-time alarming, thereby preventing an accident risk.

The invention discloses a rapid test method for a secondary voltage loop protection function of a substation. The method aims at a 10kV part of a 110kV substation, the test process of a relay protection device is simplified by using the common part of the 10kV part of the 110kV substation, and compared with a traditional test mode, the method can prevent mechanical repeated test of the same type of protection devices, so that the test efficiency of the voltage loop part of the relay protection device is improved. As only the safety measure of the voltage loop need to be tested at the bus, theaccident risk caused by the fact that the safety measures are not implemented or are not recovered in place is avoided.

The invention provides an assembly type skirting line internal and external corner closing-up mounting structure. The assembly type skirting line internal and external corner closing-up mounting structure comprises a wall body, a ground, a skirting line, an internal corner mechanism and an external corner mechanism, wherein the ground is perpendicularly connected with the wall body; the skirting line is arranged on the side face of the wall body; the internal corner mechanism is arranged at the internal corner of the wall body; the external corner mechanism is arranged at the external corner of the wall body; the internal corner mechanism and the external corner mechanism are both fixedly connected to the ground; a boss is arranged at one end of the skirting line; a groove is formed in theother end of the skirting line; the boss is connected to the internal corner mechanism in a clamped mode at the internal corner of the wall body; and the groove is connected to the external corner mechanism in a clamped mode at the external corner of the wall body. Through the internal and external corner closing-up mounting design of the assembly type skirting line, mounting of an internal and external corner line and the skirting line is facilitated, line cutting is avoided, the efficiency of workers is improved, the closing-up effect is compact, and accident risks are avoided; and by dividing the form of the skirting line, the assembly type process of factory prefabrication and on-site direct assembly is implemented, construction is accurate, and the material utilization rate is high.

The invention provides an intelligent management system for digital medium-voltage switchgear of a power plant. The system comprises a programmed operation module which is used for enabling the switchgear to execute a programmed instruction, a visual monitoring module which can remotely monitor the actual conditions of each circuit breaker and each grounding switch; an asset health management module which is used for providing equipment health diagnosis results and targeted equipment maintenance suggestions for users; and an arc fault rapid protection module which improves the safety performance of the system. The intelligent management system for the digital medium-voltage switchgear of the power plant can realize unified and centralized management of operation control of the medium-voltage switchgear, realizes remote inspection of the medium-voltage switchgear, is high in visualization degree, can realize online monitoring and analysis and diagnosis of the health state of the medium-voltage switchgear, and improves the safety of the medium-voltage switchgear; potential defects possibly existing in equipment are found in advance and eliminated in time, and an innovative arc faultrapid protection module is arranged, so safe and stable operation of the system is ensured.

The invention relates to the technical field of tab processing and particularly discloses a method and device for detecting the folding condition of tabs. The method comprises a step of stacking and aligning a plurality of electrode pole pieces with the same shape and size from the top to the bottom, wherein the electrode pole pieces comprise pole piece bodies and tabs, and all the tabs are stacked into a tab group, a step of obtaining a stacking image corresponding to a stacking side surface of one end of the tab group away from the pole piece bodies, a step of obtaining the number of tab layers in the stacking image, and a step of determining the number of bent tabs in the tab group according to the number of the tab layers. The invention provides a method and a device for detecting thefold of the tabs, the folding condition of the tabs can be detected, and possible subsequent accident risks are avoided.