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33results about How to "Avoid unsafe incidents" patented technology

Second-order preset performance fault-tolerant control method for water surface ship trajectory tracking when propeller breaks down

The invention discloses a second-order preset performance fault-tolerant control method for water surface ship trajectory tracking when a propeller breaks down, whichrelates to the technical field ofship motion control. The method aims to solve the problems that when a water surface ship executes a trajectory tracking operation task, the water surface ship is prone to being restrained by high transient performance, and propeller faults exist. The method comprises the following steps of establishing a kinematic model, a kinetic model, a propeller fault model and a trajectory tracking error system model of a water surface ship,constructing a performance function and a performance boundary of the trajectory tracking error,defining an intermediate error variable of the trajectory tracking error system, and constructing a performance function and a performance boundary of the intermediate error variable,performing error conversion based on the trajectory tracking error system model and thetwo performance functions to obtain a trajectory order conversion error of the trajectory tracking error and a speed order conversion error of the intermediate error variable,and designing a second-order preset performance trajectory tracking fault-tolerant controller by utilizing the conversion error, and realizing second-order preset performance fault-tolerant control on the water surface shipby utilizing the controller when the propeller fails.
Owner:HARBIN UNIV OF SCI & TECH

Intelligent helmet system

The invention relates to an intelligent helmet system, which comprises an intelligent helmet, an audio / video (A / V) wireless transceiver, a network server, a client side and the like, wherein the intelligent helmet is provided with a camera, a video receiving module, a video transmitting module, a sound pickup and an audio transmitting module, and the client side comprises a personal computer (PC), a 3G mobile phone or a monitoring center. The system realizes the real-time transmission of video and audio signals, and is used for carrying out overall-process, overall-visual angle and omnibearing monitoring to operators, which provides technical guarantee for safety and high efficiency of the operation. The intelligent helmet system is especially suitable for the work management of maintenance staff at electric system transformer substations.
Owner:MIANYANG POWER SUPPLY COMPANY STATE GRID SICHUANELECTRIC POWER

Intelligent safety helmet

InactiveCN102309082AReduce labor intensityEliminate unsafe incidentsHatsHeadwear capsLoudspeakerTransceiver
The invention relates to an intelligent safety helmet. A camera and a pickup are mounted on the front part of the safety helmet, a speaker is mounted on the side of the safety helmet, a wireless video signal transmitter, an audio signal transceiver and a corresponding working power supply are mounted on the safety helmet, the camera is connected with the wireless video signal transmitter, and both the pickup and the speaker are connected with the audio signal transceiver. The intelligent safety helmet can transmit video and audio signals in real time and comprehensively monitor an operator, thus safety accidents caused by insufficient monitoring are avoided.
Owner:MIANYANG POWER SUPPLY COMPANY STATE GRID SICHUANELECTRIC POWER

Apparatus, method and system for harvesting, handling and packing berries picked directly from the plant

Method for packing harvested berries directly into clamshell packages during hand harvesting by a harvester. The harvester utilizes a new open-topped harvesting apparatus that has a plurality of bottom assemblies for supporting a shipping tray that contains a plurality of clamshell packages. The open-topped harvesting apparatus further includes a plurality of front and rear end wall assemblies affixed perpendicular to the bottom assembly. A first side wall assembly is affixed perpendicular to the bottom assemblies and affixed to the plurality of end wall assemblies. A second side wall assembly is affixed perpendicular to the bottom assemblies and affixed to the end wall assemblies. The second side wall has two belt notch-like loops for allowing the carrier to be secured on a harvester's belt; and the second side wall further including an arch-shaped side supporter for maintaining the bottom assemblies substantially horizontal to the ground when worn by the harvester.
Owner:NATURIPE BERRY GROWERS

Intelligent fence identification mechanism

The invention provides an intelligent fence identification mechanism. According to the intelligent fence identification mechanism, a transmitting terminal gate post, a receiving terminal gate post, four stand columns and a netlike isolation belt define a construction area. Guardrails are arranged between the transmitting terminal gate post and the receiving terminal gate post. The transmitting terminal gate post and the receiving terminal gate post are both provided with card readers. The receiving terminal gate post is internally provided with a wireless communication module and a controller.The controller is in communication connection with a driving motor, the card readers and the wireless communication module. The card readers are used for reading and identifying card information. Thecontroller conducts comparison and matching on the received identified card information and preset staff ID information. If the received identified card information is matched with the preset staff ID information, the controller controls the driving motor to operate to drive the guardrails to open and allow staff to pass. The intelligent fence identification mechanism is convenient to install, conducts power generation through solar power panels, ensures power supply, can effectively prevent foreign personnel from being broken in by mistake, can give a warning to the foreign personnel and canalso remind work leaders of foreign personnel going into a working site.
Owner:STATE GRID SHANDONG ELECTRIC POWER CO SHOUGUANG POWER SUPPLY CO +2

Dual-row battery pack

The invention relates to a dual-row battery pack. The dual-row battery pack comprises a bracket and a bracket fixed base; a plurality of 1# battery pack accommodating grooves and a plurality of elastic sheet bodies are symmetrically arranged on the upper and lower sides of the bracket; multiple battery heat dissipation grooves are formed between the 1# battery pack accommodating grooves and the elastic sheet bodies; the bracket fixed base comprises a supporting base upper bottom plate and a supporting base lower bottom plate of the consistent structures; the supporting base upper bottom plateand the supporting base lower bottom plate are provided with multiple small rib bumps, positioning square sheet bodies, positioning screw holes or clamping bases and multiple strip-shaped bumps separately; the small rib bumps downwardly press the multiple elastic sheet bodies on the bracket to clamp tightly, so that batteries of different dimension tolerances and manufacturer standards can be fixed effectively; and therefore, the heat generated in operating of the batteries is discharged from the upper part, and cold air is supplemented from the lower part, so that the batteries can be cooledeffectively, and unsafety accidents caused by heating can be avoided.
Owner:上海捷科工具有限公司

Fitness equipment with built-in adjustment structure

The invention relates to fitness equipment with an embedded adjusting structure. By the fitness equipment with the embedded adjusting structure, the technical problems that in the prior art, an adjusting rack of fitness equipment is inconvenient to adjust and a brake cable is exposed are solved. The fitness equipment with the embedded adjusting structure comprises handrails, a fixed tube, an adjusting tube, a hand brake and a brake cable, wherein the upper end of the brake cable is connected with the hand brake; the brake cable penetrates in the adjusting tube; an adjusting mechanism is arranged in the lower end of the adjusting tube; the lower end of the brake cable is connected with the adjusting mechanism; and a plurality of adjusting holes by which the adjusting mechanism can be positioned are formed in a wall of the fixed tube. The brake cable is inlaid in the adjusting tube, is not exposed, and cannot be changed along with up-down adjustment of the adjusting tube, and unsafe incidents in a fitness process are avoided effectively; and moreover, the hand brake is not required when the adjusting tube is adjusted upwards, the adjusting tube can move upwards and is positioned after being pulled upwards, when being adjusted downwards, the adjusting tube can move downwards and is positioned with the aid of the hand brake only, and the fitness equipment is quick and convenient to adjust, and is widely well received by body builders.
Owner:SHANDONG RELAX HEALTH IND

Unmanned aerial vehicle

The invention relates to an unmanned aerial vehicle which comprises a vehicle body, a rack, a radar flow measurement probe, a radar water level indicator and a water sampling module. The radar flow measurement probe and the radar water level indicator are installed below the vehicle body, and the water sampling module is installed on one side of the vehicle body. A battery module and a control module are arranged in the vehicle body. The radar flow measurement probe, the radar water level indicator and the water sampling module are connected with the control module. The radar flow measurementprobe, the radar water level indicator, the water sampling module and the control module are connected with the battery module. The unmanned aerial vehicle integrates flow measurement and water sampling and can substitute workers to conduct flow measurement and sampling work under various extreme and complex conditions, so that labor cost is saved, and various safety accidents can be avoided.
Owner:广州玖沣行供应链管理有限公司

Telescopic vertical stirrer convenient to move

The invention discloses a telescopic vertical stirrer convenient to move. The telescopic vertical stirrer comprises a support, a transmission box, a main shaft and a stirring shaft. A base is fixed tothe lower side of the support, and trundles are arranged at the lower end of the base. A motor is mounted at the upper end of the support, and a connecting shaft is mounted on the left side of the motor. A stirring pot fixing frame is arranged on the base. A bevel gear is arranged on the left side of the connecting shaft, and a main shaft bevel gear is arranged at the lower end of the bevel gear.A main shaft gear is arranged at the lower end of the main shaft, and a stirring shaft gear is mounted at the right end of the main shaft gear. The lower end of the stirring shaft is connected with atelescopic rod thin rod, and adjusting bolts are arranged at the bottom end of the stirring shaft. According to the telescopic vertical stirrer convenient to move, the bevel gear is arranged on the left side of the connecting shaft, the main shaft bevel gear is arranged at the lower end of the bevel gear, when the stirring shaft works, rotation and revolution can be achieved at the same time, andmanpower does not need to be consumed for stirring.
Owner:GUIZHOU UNIV

A system and method for preventing false locking and false operation

The invention relates to the system management field and provides a system and a method for preventing error locking and misoperation. The system comprises an equipment management system which is used for generating a work order and generating identifier containing appointed work information on the work order. For a corresponding access control system in a closed region, a first identifier scanning device is used for scanning the identifiers on the work order so as to obtain the appointed work information, and checking whether the work content of the closed region is matched with the appointed work information or not, if so, an unlocking instruction is sent to an electronic lock of the access control system, otherwise, no generation of the unlocking instruction is prompted. For field equipment, a second identifier scanning device is used for scanning the identifiers containing the appointed work information and field equipment identifiers, and checking whether the information in the identifiers of the field equipment is matched with the appointed work information, if so, the instruction of operation of the field equipment is prompted, otherwise, alarm is implemented. According to the system, safe and practical error locking prevention and anti-misoperation management can be realized.
Owner:CHINA SHENHUA ENERGY CO LTD +2

Battery pack capable of keeping running after partial fault battery units are automatically disengaged

A battery pack capable of keeping running after partial fault battery units are automatically disengaged is characterized in that the battery pack comprises a battery management system BMS and a plurality of series units, the series units are connected in series, and each series unit is connected with the battery management system BMS; the negative end of the previous series unit 7 is connected with the positive end of the next series unit, the positive end of the uppermost series unit is the positive electrode of the battery pack, and the negative end of the lowermost series unit is the negative electrode of the battery pack; and the bypass switch driving circuit DRV and the battery parameter monitoring circuit SEN of each series unit (7) are respectively connected to a battery management system BMS, and when the battery parameter monitoring circuit SEN detects that the battery unit 9 in a certain series unit 7 works abnormally, the bypass switch K of the series unit 7 is switched into a closed state, the series unit fault battery unit is automatically disconnected from the system, the system current path is switched to the bypass switch K of the series unit 7, and the battery pack can keep running continuously.
Owner:FUJIAN FUSSHIA TECH CO LTD

An abnormal identification method of power grid voltage measurement based on distance correlation coefficient

The invention discloses a power grid voltage measurement abnormity identification method based on a distance correlation coefficient, and the method comprises the steps of automatically calculating adistance correlation coefficient matrix among a plurality of intervals through a given multi-dimensional voltage historical data file F1 at the same voltage level, and learning to find out a thresholdvalue for identifying the abnormity of voltage measurement data; calculating a distance correlation coefficient matrix among a plurality of intervals by utilizing the to-be-identified voltage data file F2; and judging a voltage measurement data state in the new multi-dimensional voltage data file by combining a threshold value which is automatically learned by utilizing historical voltage data and is used for identifying the abnormity of the voltage measurement data, thereby realizing the voltage measurement and transmission state identification of a transformer substation voltage transformer, a secondary transmission and transformation loop and a measurement and control device. According to the invention, the slight measurement abnormality of the voltage transformer can be discovered inadvance by applying the existing power grid voltage data without power failure, maintenance and hardware installation, and the identification precision is high.
Owner:STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST

Fitness equipment with embedded adjusting structure

The invention relates to fitness equipment with an embedded adjusting structure. By the fitness equipment with the embedded adjusting structure, the technical problems that in the prior art, an adjusting rack of fitness equipment is inconvenient to adjust and a brake cable is exposed are solved. The fitness equipment with the embedded adjusting structure comprises handrails, a fixed tube, an adjusting tube, a hand brake and a brake cable, wherein the upper end of the brake cable is connected with the hand brake; the brake cable penetrates in the adjusting tube; an adjusting mechanism is arranged in the lower end of the adjusting tube; the lower end of the brake cable is connected with the adjusting mechanism; and a plurality of adjusting holes by which the adjusting mechanism can be positioned are formed in a wall of the fixed tube. The brake cable is inlaid in the adjusting tube, is not exposed, and cannot be changed along with up-down adjustment of the adjusting tube, and unsafe incidents in a fitness process are avoided effectively; and moreover, the hand brake is not required when the adjusting tube is adjusted upwards, the adjusting tube can move upwards and is positioned after being pulled upwards, when being adjusted downwards, the adjusting tube can move downwards and is positioned with the aid of the hand brake only, and the fitness equipment is quick and convenient to adjust, and is widely well received by body builders.
Owner:SHANDONG RELAX HEALTH IND

Voltage measurement data reduction method and recognition method for different voltage classes of transformer substation

The invention discloses a voltage measurement data reduction method and recognition method for different voltage classes of a transformer substation. The method comprises the following steps: calculating weighted average values of different interval data in historical voltage measurement data and reduction values of different voltage classes; calculating equivalent voltage data from the to-be-identified measurement data to realize automatic reduction of the voltage measurement data of any voltage level of the transformer substation to the same voltage level; the recognition method comprises the following steps: automatically calculating a distance correlation coefficient matrix among a plurality of intervals by utilizing multi-dimensional voltage historical data, and learning to find out athreshold value for identifying the abnormality of voltage measurement data; calculating a distance correlation coefficient matrix among a plurality of intervals by utilizing the to-be-identified voltage data file; and judging a voltage measurement data state in the new multi-dimensional voltage data file by combining a threshold value which is automatically learned by utilizing historical voltage data and is used for identifying the abnormity of the voltage measurement data, thereby realizing voltage measurement and transmission state recognition of a transformer substation voltage transformer, a secondary transmission and transformation loop and a measurement and control device.
Owner:STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST

Voltage measurement data reduction method and identification method for different voltage levels in substations

The invention discloses a voltage measurement data reduction method and recognition method for different voltage classes of a transformer substation. The method comprises the following steps: calculating weighted average values of different interval data in historical voltage measurement data and reduction values of different voltage classes; calculating equivalent voltage data from the to-be-identified measurement data to realize automatic reduction of the voltage measurement data of any voltage level of the transformer substation to the same voltage level; the recognition method comprises the following steps: automatically calculating a distance correlation coefficient matrix among a plurality of intervals by utilizing multi-dimensional voltage historical data, and learning to find out athreshold value for identifying the abnormality of voltage measurement data; calculating a distance correlation coefficient matrix among a plurality of intervals by utilizing the to-be-identified voltage data file; and judging a voltage measurement data state in the new multi-dimensional voltage data file by combining a threshold value which is automatically learned by utilizing historical voltage data and is used for identifying the abnormity of the voltage measurement data, thereby realizing voltage measurement and transmission state recognition of a transformer substation voltage transformer, a secondary transmission and transformation loop and a measurement and control device.
Owner:STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST
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