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6847 results about "Operation safety" patented technology

Railway line inspection system

The invention discloses a railway line inspection system. The railway line inspection system comprises a coming and going train information acquisition subsystem, a data and fault processing subsystem, a flight control subsystem and a data acquisition subsystem. The coming and going train information acquisition subsystem determines coming and going train information of a railway line and sends the coming and going train information to the data and fault processing subsystem. The flight control subsystem controls the flight track and attitude of an unmanned aerial vehicle and the action of avoiding coming and going trains. The data acquisition subsystem is arranged on the unmanned aerial vehicle, acquires field data of the railway line and sends the field data to the data and fault processing subsystem to be processed, wherein the field data comprises radar scanning data and field image data of the railway line. The data and fault processing subsystem receives and analyzes the field data of the railway line and determines the fault type and generation position. The technical problems that an existing railway line inspection mode is single in means and low in reliability, affects normal train driving and cannot meet the requirements for high-speed railway operation safety can be solved.
Owner:ZHUZHOU TIMES ELECTRONICS TECH CO LTD

Traction substation watchkeeper virtual immersion type training simulation system and method

The invention discloses a traction substation watchkeeper virtual immersion type training simulation system and method. Virtual three-dimensional scenes and related animations of a traction substation are established with three-dimensional modeling and animation software, the visual and auditory senses of training objects can be effectively enhanced, and the understanding of the training objects on study content can be intensified; the three training patterns of free exercising, situational teaching and simulation checking, and specific task training content are established with a three-dimensional engine and a database, and the training content is high in pertinence and capable of being freely modified; the scene perceptual feelings are further enhanced through virtual reality immersion type helmets and somatosensory interaction equipment. According to the method, the three-dimensional scene of the whole traction substation can be vividly and visually established through three-dimensional visualization simulation, the daily operation of patrolling, switching, overhauling and the like is simulated through service training content based on the three-dimensional scene, safe operation, a high immersion degree, high visualizability and a short training period are achieved in the training process, and good application prospects are achieved.
Owner:SOUTHWEST JIAOTONG UNIV

Highway operation safety-based mobile monitoring and early warning system and method

The invention discloses a highway operation safety-based mobile monitoring and early warning system and method. The system comprises a data acquisition unit, a data storage unit, a data processing unit, an electronic display screen and a wireless communication module, wherein the data acquisition unit, the data storage unit, the electronic display screen and the wireless communication module are all connected with the data processing unit; the system is arranged on a vehicle; and an accumulator is adopted to provide power. The method specifically comprises the following steps of: constructing a basic database; acquiring dynamic data by the data acquisition unit in real time; comparing real-time road condition parameters with safe road condition parameters by the data processing unit to generate early warning information; and transmitting the real-time road condition parameters and the early warning information to a monitoring center by the wireless communication module. According to the system and the method, the defects of the conventional fixed monitoring system and patrol vehicle can be made up, real-time detection and analysis of the highway road condition parameters are effectively improved, and the highway operation safety level and the emergency management capacity are improved.
Owner:郭忠印 +4

Implementation method of speed feedback sign system for bend steering vehicle speed safety state prewarning

The invention discloses an implementation method for a speed feedback sign for bend steering vehicle speed safety state prewarning. The speed feedback sign system which consists of a monitoring camera, a rain sensor and a speed feedback sign device is arranged on the roadbed side of a road in front of a bend entrance in a retrograde vehicle direction, wherein a central control chip, a speed measuring radar, a light emitting diode (LED) display screen and prompting characters are arranged in the speed feedback sign device; a driver is warned to control the vehicle speed within a proper range before a vehicle enters a bend according to the conditions such as types of driven vehicles, weather conditions and road alignment conditions, so that traffic accidents after the vehicle enters the bend are prevented, and bend entrance critical safe vehicle speed corresponding to different vehicle types can be prompted in real time aiming at the change of road adhesion coefficients caused by different weather conditions and different bend road sections, and vehicle speed information and running states are fed back to the driver before the vehicle enters the bend; and therefore, enough time for the driver to adjust the vehicle speed is ensured and the road operation safety is improved.
Owner:CHANGAN UNIV

Anti-falling protection device of elevator

The invention discloses an anti-falling protection device of an elevator. The device comprises a vertical acceleration sensor, a controller, a storage battery, fixed rails, fixing rods and retractable motors, wherein the vertical acceleration sensor is disposed on the top of an elevator car, the fixed rails are arranged on the two sides of an elevator shaft, the fixing rods and the retractable motors are arranged on the side walls of the elevator car, and the fixed rails are evenly provided with multiple fixing holes. The controller is connected with the vertical acceleration sensor, the storage battery and the retractable motors, each retractable motor is connected with one end of the corresponding fixing rod, and the other end of each fixing rod corresponds to the corresponding fixing hole in the corresponding fixed rail in position. The two sides of the elevator shaft are provided with the fixed rails and the fixing rods, so that falling of the elevator can be prevented to some extent when the elevator is overweight and descends. Meanwhile, the vertical acceleration sensor is arranged so as to precisely detect the descending speed and the ascending speed of the elevator, operation of the elevator is better detected, operation safety of the elevator is increased, and the anti-falling protection device is worth popularization.
Owner:JIANGSU MONTMERY ELEVATOR

Charging and discharging scheduling method for electric vehicles connected to micro-grid

The invention discloses a charging and discharging scheduling method for electric vehicles connected to a micro-grid. The method comprises the steps of: (1) determining a system structure of the micro-grid and the characteristics of various units; (2) building a micro-grid optimal scheduling target function of considering the battery depreciation cost of the electric vehicles under time-sharing electrovalence; (3) determining constraints of various distributed power supplies, batteries of the electric vehicles and the like and forming a micro-grid optimal scheduling model by the constraints and the micro-grid optimal scheduling target function; (4) determining the number, the start-stop time, the start-stop charged states and other basic calculated data of the electric vehicles connected to the power grid under the time-sharing electrovalence; and (5) solving the micro-grid optimal scheduling model through a particle swarm algorithm and determining the charge and discharge power when the electric vehicles are connected to the power grid. The batteries of the electric vehicles are connected to the micro-grid as mobile distributed energy storage devices to achieve the peak load shifting effect; the operation safety and stability of the micro-grid in the time-sharing electrovalence environment are improved; and the energy utilization efficiency and the power grid operation efficiency are simultaneously improved.
Owner:HEFEI UNIV OF TECH

Automatic operating stool tester

The invention provides an automatic operating stool tester. The tester is used for carrying out automatic smear and microscopy on the stool and other human secretions and selectively preserving the image-text data. The tester is characterized in that a power-driven three-dimensional Cartesian coordinate manipulator is formed by X, Y and Z axes; an operating bottom plate is provided with an automatic sample injection slider device; an operating disk spindle core rod is movably connected with the operating bottom plate; an automatic slide adding device is fixed on a rack; a microscope is installed in the front of the rack; and an automatic slide push-out device is fixed on the microscope. The tester can automatically open the stool sample box, automatically put the slide in the box, automatically feel about the image via the liquid crystal display, move the slide for microscopy through numerical control, automatically print the locked image, automatically close the stool box, automatically recycle the waste articles, automatically carry out ultraviolet disinfection, completely prevent the operators from closely contacting the stool, greatly improve the sensory organ comfort in the testing process, greatly enhance the operation safety and repeatability, introduce the test report with images and texts to the stool routine and provide most direct basis for clinical diagnosis.
Owner:襄阳市科瑞杰医疗器械有限公司

Integral solar energy photoelectricity water-treatment device

The invention relates to an integral solar energy photoelectricity water-treatment device comprising an electrode couple or an three-dimensional electrode as well as an electrolytic bath, a storage battery, solar energy battery components and corresponding controllers and an ultraviolet lamp, wherein the electrode couple or the three-dimensional electrode is loaded with photocatalytic materials; the ultraviolet lamp is used for illuminating a photoelectrode; the solar energy battery components convert the received solar light energy to electric energy which is then transmitted and stored in the storage battery so as to supply power for the ultraviolet lamp and/or the electrode couple intermittently or continuously. The invention integrates an optical chemical oxidation process and an electric chemical oxidation process which both generate enhancement and synergetic effects for improving the water treatment efficiency, or the functions of the optical chemical oxidation process and the electric chemical oxidation process can be independently exerted to realize water purification; the invention has the advantages of simple structure, low manufacturing cost, safe and simple operation, easy realization of automation and safe maintenance, driving the entire water treatment process by wholly or partly utilizing the electric energy converted from the solar energy, solving the problem of high dependence on energy sources in a photoelectrocatalytic water treatment process and being capable of not depending on the traditional power grid in service.
Owner:NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER

Panel mechanized centralized ore-pass upward horizontal cut-and-filling stoping method

The invention relates to a panel mechanized centralized ore-pass upward horizontal cut-and-filling stoping method. According to the technical scheme, an ore body is divided into panels in stages along the trend, and the panels are divided into chambers and studs at equal intervals according to the trend; a top pillar (17) and a bottom pillar (10) are left; the chambers and the studs are horizontally layered; a sublevel roadway (8), a pulse external slope ramp (2), a stope cross gateway (9) and a panel centralized ore-pass (4) are distributed on the panel lower plate to form a trackless stope preparation system; an upper-stage transverse drift (18) and a lower-stage transverse drift (7) pass through corresponding ventilation filling shaft cross gateway (16) and pedestrian water-filtration patio cross gateway (11) to be communicated with a ventilation filling shaft (15) and a pedestrian water-filtration patio (12) in each chamber or ore pillar. Mechanical mining is adopted, so that all chambers are stoped at the same time, and a mined-out area and the stope cross gateway (9) are filled when every layer is stoped; after the chamber mining is completed, the studs are stoped by using the same method, and the top pillar (17) and the bottom pillar (10) are finally stoped. The panel mechanization-centralized ore-pass upward horizontal cut-and-filling stoping method disclosed by the invention has the advantages of being high in production capability, high in stoping efficiency, simple in stoping process and good in operation safety.
Owner:WUHAN UNIV OF SCI & TECH

Large-scale electric vehicle optimized charging and discharging system and method based on the optimal power flow

The invention discloses a large-scale electric vehicle optimized charging and discharging system and method based on the optimal power flow. The method comprises the steps that a power grid dispatching center enables each cell centralized management unit to be equivalent to a storage battery, the cell centralized management units are brought into unified dispatching of a power grid, an optimization model is built by using a smooth daily load curve, the minimum transmission loss, the minimum number of regulation times of on-load voltage regulating transformers and the highest user satisfaction degree as objective functions and by being restrained and regulated by power grid safe and stable operation behaviors, the charging capacity of each cell centralized management unit is obtained by using the improved particle swarm optimization algorithm, and each cell centralized management unit is used for formulating a charging and discharging plane for each vehicle according to different requirements of electric vehicles. By means of the large-scale electric vehicle optimized charging and discharging system and method, various problems caused because a large number of electric vehicles have access to the power grid to be charged and discharged can be solved, charging and discharging of the electric vehicles are completed in sequence, the requirement of users for electricity consumption can be met, and meanwhile operation safety and economical efficiency of the power grid are improved by making full use of the electric vehicles.
Owner:WUHAN UNIV

Device and method for detecting and controlling tilting buckle head of band steel in rough rolling process

The invention discloses a device and a method for detecting and controlling the tilting buckle head of band steel in the rough rolling process. The actual head tilting or buckle head condition of the rolled band steel can be detected by using head tilting and buckling detectors arranged above roller beds and between the roller beds and then the rolling speeds of an upper roller and a lower roller for biting the band steel can be automatically adjusted when the next band steel is rolled, so that upper surface band steel and the lower surface band steel consistently extend and the aim of controlling the tilting buckle head of the band steel can be achieved, wherein the control belongs to the feedback control. According to the invention, the rolling speeds of the upper roller and the lower roller can be adjusted by detecting the actual head tilting or buckle head condition of the band steel, and the detection process is not influenced by logged water, fog, the roughness of the rollers, the elevation of a rolling line, the amplitude of rolling reduction, the thickness of the band steel, the rolling speed and other factors, so that the invention has high accuracy of controlling the tilting buckle head, effectively improves the rolling quality of steel plates and the operation safety of operators and reduces the labor intensity.
Owner:BAOSHAN IRON & STEEL CO LTD

High-density culture method of saccharomyces cerevisiae and pH regulation and control method of saccharomyces cerevisiae

The invention provides a high-density culture method of saccharomyces cerevisiae and a pH regulation and control method of the saccharomyces cerevisiae. The high-density culture method comprises the following steps: performing first-stage and second-stage seed enlarging cultivation; centrifugating, washing and enriching seeds; putting the seeds into a fermentation tank filled with water for fermental cultivation, and feeding molasses and a yeast extract powder solution during fermentation. The pH regulation and control method comprises the following steps: monitoring a physiological state of thallus in the fermentation tank on line and in real time, and regulating and controlling the speed of feeding molasses and yeast extract powder according to a carbon dioxide release speed, an oxygen intake speed and changes of a respiratory quotient, so as to regulate and control the pH value in the fermentation tank, wherein no inorganic salt, acid, alkali and trace elements are required to be added in the whole fermentation, regulation and control process; at the end of fermentation, performing separation and washing, and cooling saccharomyces cerevisiae thallus. The method disclosed by theinvention is easy to operate and low in cost; the prepared saccharomyces cerevisiae is edible and has high protein content; a fermentation raw material is high in conversion rate; no acid and alkali are added, so that the operation safety is improved.
Owner:ANGELYEAST CO LTD
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