43results about How to "Reduce the frequency of accidents" patented technology

The invention provides a variable speed wind turbine generator frequency control method based on dynamic standby power. The method comprises the following steps that I, a frequency modulation operation strategy of a variable speed wind turbine generator is determined according to operation conditions of the variable speed wind turbine generator; II, whether the variable speed wind turbine generator participates in system frequency modulation or not is judged; III, whether the rotating speed of the wind turbine generator is out of limit or not is judged; IV, an active frequency control module is activated, and an active power set value of the wind turbine generator is modified; V, control over the system frequency is achieved. The variable speed wind turbine generator frequency control method based on dynamic standby power can achieve frequency modulation capability of the wind turbine generator in a full wind speed region, when participating in the system frequency modulation to provide active support, the wind turbine generator is not affected by the operation conditions, and therefore electric system frequency stability is improved.

The invention discloses an automatic loss assessment method and system for automobile appearance on the basis of a deep neural network. A mobile phone shoots the long-shot/medium-shot photo of an accident automobile, automobile and automobile assembly component detection is carried out on the long-shot/medium-shot photograph in real time, according to an automobile and automobile assembly component detection result, a user is confirmed to shoot in a proper distance, and the user is prompted to shoot a first local automobile photo; the mobile phone continuously shoots the detail photo of the accident automobile, and a damage area in the detail photo is detected in real time; when the damage area is detected, the user is prompted to shoot a first detail photo; after the photo finishes beingshot, the user is continuously prompted to approach to shoot the area, when the damage area is detected again, the user is prompted to shoot a second detail photo, after the second detail photo finishes being shot, a current damage unit is submitted; and a background server carries out damage identification on each group of damage units submitted from the mobile phone, and the identification results of multiple groups of damage units are combined to obtain the damage details of the accident automobile.

The invention discloses an intelligent industry patrol mining instrument, a patrol mining system and an intelligent patrol mining method based on radio frequency identification, wherein, the intelligent industry patrol mining instrument comprises memory modules, interface modules, clock modules and a microprocessor CPU of a display and touch screen circuit; the CPU is connected with a frequency identification circuit module through a voltage conversion circuit; the frequency identification circuit module can identify corresponding radio frequency electronic tags pasted on the equipment to be treated with patrolled mining. The intelligent patrol mining system comprises an upper management system and n intelligent industry patrol mining instruments and equipment groups to be treated with patrol mining; each machine of the equipment groups to be treated with patrol mining is pasted with a radio frequency electronic label; the upper management system is provided with an upper management machine and a database server for managing and scheduling the whole patrol mining task, information data of storing equipment groups and historical patrol mining data; the intelligent patrol mining instrument integrates with patrol mining software system and matches with the upper management system software of the upper management machine and the database server to finish the industry patrol mining task.

The invention relates to a method for displaying multi-item alarm information at a single position of an operation screen. The method for displaying multi-alarm information in a single position of the operation screen comprises the following steps: using HMI system software in GE Company to organize the order of the multi-item alarm information of each device in real time according to the importance; expressing all the chains of the alarm information in a program; and manufacturing the abnormal chain information at a screen position, and selecting the display mode and content according to need. The method for displaying the multi-item alarm information at the single position of the operation screen has the advantages of wide information contents and complete scheme, ensures that an operator directly observes and knows the information contents through the frequently used screen and knows a dispelling method, saves complicated calculation process of searching the program, shortens the accident handling time, improves the equipment operation rate, and guarantees the device safety and smooth operation of the production; and the method is simple, the program is concise, the display screen is clear, and the operating method is easy to grasp.

The embodiment of the invention relates to a vehicle fatigue driving state prompting method, a fatigue monitoring controller, a system and a vehicle. The vehicle fatigue driving state prompting methodcomprises the steps of firstly, receiving a monitoring signal, for a vehicle driver, transmitted by a monitoring camera of the vehicle; secondly, determining a driving state of the driver according to the monitoring signal; and thirdly, when it is found that the driver is in a fatigue driving state, transmitting a first request signal of turning on a danger alarming lamp to a vehicle body controller so that the vehicle body controller turns on the danger alarming lamp according to the first request signal. Therefore, when it is found that the driver is in the fatigue driving state, by turningon the danger alarming lamp, an alarm can be given to surrounding vehicles and pedestrians to reduce accident occurrence rate and guarantee safeties of pedestrians and vehicles.

The invention provides a landing device for a vertical take-off and landing aircraft and a ship. The landing device includes a lift-off platform, and the lift-off platform is provided with a pluralityof power devices for driving the lift-off platform to ascend or descend; power cables and exploring tubes are located below the lift-off platform, pull-down cables are arranged inside the exploring tubes, and shock-absorbing landing gears are further arranged below the lift-off platform; and the lift-off platform includes an upper layer platform, the upper layer platform is located at the upper end of the lift-off platform, and the upper layer platform is provided with a tensioning assembly which is used for pulling the aircraft and the upper layer platform together. The ship is provided withthe landing device. The relatively large impact on the deck when the aircraft lands on the deck can be avoided, and the landing control over the aircraft is simpler.

The invention discloses a monitoring mechanism of an ICP high-density plasma etching machine. The monitoring mechanism comprises an etching machine body, a front-and-back moving mechanism is arrangedon the left side of the etching machine body, a left-and-right moving guide mechanism is arranged above the etching machine body, a first left-and-right moving mechanism and a second left-and-right moving mechanism are arranged in an inner cavity of the left-and-right moving guide mechanism, and an etching substrate is fixedly connected to the top of the etching machine body. As the front-and-backmoving mechanism is arranged, the monitoring equipment can move along with the left-and-right moving guide mechanism; therefore, a connecting wire between the monitoring equipment and the second left-and-right moving mechanism does not need to be too long; therefore, accidents caused by winding of the connecting wire are not likely to happen, damage to the etching machine can be reduced, the service life of the etching machine is prolonged, the first left-and-right moving mechanism can be controlled to blow-dry liquid medicine deposited on the etching machine through wind power, the surface of the etching substrate can be rapidly dried, and subsequent use is also facilitated.

The invention relates to a non-energy-consumption road tunnel entrance reflective mirror and belongs to the technical field of road traffic. According to the non-energy-consumption road tunnel entrance reflective mirror, sunlight reflection is utilized to enable light to enter a tunnel entrance, and tunnel entrance illumination can be enhanced. The non-energy-consumption road tunnel entrance reflective mirror comprises a support and a concave mirror, and the concave mirror is mounted on the support and provided with a plurality of small round protrusions. Through the multi-face reflective mirror with large concave and small protrusions, sunlight is reflected to enter the tunnel entrance for enhancing illumination in advance, the defect that an existing lamp on the road tunnel entrance is insufficient in illumination technical brightness is overcome, energy is not consumed, the tunnel entrance can be effectively illuminated, and accident occurring frequency is lowered.

The invention discloses a gantry crane cable fold-back device. The gantry crane cable fold-back device comprises a bottom plate, an upper panel and multiple arc-shaped plates; the bottom plate is arranged obliquely; the upper panel is located above the bottom plate and is parallel with the bottom plate; a gantry crane cable penetrates from space between the upper panel and the bottom plate along the inclination direction of the bottom plate; and the multiple arc-shaped plates are respectively arranged at the left side and the right side of the gantry crane. The arc-shaped plates at the left side and the right side of the gantry crane are fixedly arranged between the bottom plate and the upper panel at vertical intervals along an inclination longitudinal direction; a cylindrical vertical direction adjusting part is fixedly arranged at the back end part of the upper panel; the back end part of the upper panel is fixedly arranged at the outer wall of the vertical direction adjusting part; a fixing device is fixedly arranged in front of the bottom plate; and the gantry crane penetrates from the fixing device and is fastened by the fixing device. The gantry crane cable fold-back device is capable of reducing labor intensity of workers, increasing safety coefficient and improving economic benefits.

The invention discloses a vehicle auxiliary driving method, device and equipment and a storage medium. The method comprises the steps that the target distance between a vehicle and a target obstacle, first driving data of the target obstacle and second driving data of the vehicle are acquired; distance calculation is carried out based on the target distance, the first driving data and the second driving data, and the safety braking distance of the vehicle is obtained; calculating the actual braking distance of the vehicle based on the second driving data; if the actual braking distance is larger than the safe braking distance, third driving data of a first obstacle on an adjacent lane on at least one side of the vehicle and a first distance between the first obstacle and the vehicle are obtained, and the first obstacle is the obstacle, closest to the vehicle, on the adjacent lane; performing calculation processing based on the third driving data, the first distance and the second driving data to obtain a lane change collision result; if the lane changing collision result meets the preset lane changing condition, a lane changing early warning is given out, and a lane changing driving path is provided.

The invention discloses a novel underground gas positioning and monitoring system which is provided with an industrial personal computer (IPC), an optical fiber transceiver, a monitor display, an alarm and a gateway on an above-ground working surface. The interior of the IPC is provided with positioning discriminatory analysis software; the IPC is connected with the monitor display and the alarm to transmit data information; the IPC, the optical fiber transceiver and the gateway connected through optical cables; and a plurality of wireless network base stations, a gas monitor and a coding discriminator are arranged on an underground working surface. The novel underground gas positioning and monitoring system is convenient for two-way information transmission, can effectively prevent accident potentials in time to reduce accident frequency to be the lowest, can track and position mine underground personnel in real time, and clearly master dynamics of the underground personnel at any time, thereby having great practical value.