31results about How to "Eliminate the risk of collision" patented technology

Method and device for ensuring the safety of a low-altitude flight of an aircraft. A device (1) for ensuring the safety of a low-altitude flight comprises information sources (5) able to determine current flight conditions, a monitoring unit (6) for realizing, with the aid of said current flight conditions, a function for global and autonomous monitoring of said low-altitude flight of the aircraft, making it possible to preserve the integrity of said aircraft during said flight, and means (13) for presenting the results of the monitoring function realized by said monitoring unit (6) to an operator.

Method and device for ensuring the safety of a low-altitude flight of an aircraft.A device (1) for ensuring the safety of a low-altitude flight comprises information sources (5) able to determine current flight conditions, a monitoring unit (6) for realizing, with the aid of said current flight conditions, a function for global and autonomous monitoring of said low-altitude flight of the aircraft, making it possible to preserve the integrity of said aircraft during said flight, and means (13) for presenting the results of the monitoring function realized by said monitoring unit (6) to an operator.

The invention relates to an improved structure applicable to a water tank. The improved structure comprises a water tank body and a water tank cover covering the water tank body. A drainage valve is arranged in the water tank body and controls drainage through a key arranged on the water tank cover, the drainage valve is integrally elliptically tubular in shape with the lower portion connected with an inserting socket, the lower end of the inserting socket necks down to form an elliptical inserting tube, grooves are arranged in the inserting tube, sealing rings are arranged in the grooves, an elliptical guiding drum matched with the inserting tube is arranged at the bottom wall of the water tank body, the drainage valve is fixedly connected in the water tank body by being inserted in the guiding drum through the inserting tube, sealing is formed by the sealing rings, and the lower bottom edge of the guiding drum protrudes out of the bottom wall of the water tank body to be connected with a matched elliptical drainage tube. By the water tank with the improved structure, effects of high flushing pressure and clean brushing can be guaranteed, the water tank can be thinned to 6cm to have the space saved, mounting and subsequent maintenance are facilitated, and attractiveness and practicability are achieved.

The invention discloses an online replacement method for a drying cylinder shaft head of a paper mill. According to the method, in a drying part of a papermaking production line, unit brackets and cross rollers are adopted for erecting an assembled bracket through a direct cup joint mode, and a lifting device is placed on the assembled bracket. By means of the method, the drying cylinder shaft head of a drying cylinder can be directly replaced on the drying part of the papermaking production line; the unit brackets and the cross rollers are adopted for erecting the assembled bracket through the direct cup joint mode; the drying cylinder is lifted by the lifting device placed on the assembled bracket, there is no need to use a large crane for removing the drying cylinder from the drying part, replacement of the drying cylinder shaft head is more convenient and faster, manpower and material resources are saved, and the time for replacing the drying cylinder shaft head is shortened.

The invention discloses an on-line detection device for non-contact measurement holes and a method of using the same, belonging to the technical field of on-line detection. The structural features of the device include a clamp, a camera, a snap ring, a bracket, a connecting rod, a laser generator and an illumination compensator; the online detection device is installed on the main shaft of the machine tool, and is calibrated at different heights by using standard hole samples to obtain the standard The relationship between the measurement error compensation value of the hole and the height is combined with the image recognition technology and the error compensation formula to solve the geometric parameters of the hole to be measured. The invention can realize the non-contact on-line detection of a large number of holes, obtain all the geometric information of the holes, eliminate the probe collision risk and repeated clamping errors brought by the contact measurement, and improve the detection efficiency.

The invention relates to an improved structure applicable to a water tank. The improved structure comprises a water tank body and a water tank cover covering the water tank body. A drainage valve is arranged in the water tank body and controls drainage through a key arranged on the water tank cover, the drainage valve is integrally elliptically tubular in shape with the lower portion connected with an inserting socket, the lower end of the inserting socket necks down to form an elliptical inserting tube, grooves are arranged in the inserting tube, sealing rings are arranged in the grooves, an elliptical guiding drum matched with the inserting tube is arranged at the bottom wall of the water tank body, the drainage valve is fixedly connected in the water tank body by being inserted in the guiding drum through the inserting tube, sealing is formed by the sealing rings, and the lower bottom edge of the guiding drum protrudes out of the bottom wall of the water tank body to be connected with a matched elliptical drainage tube. By the water tank with the improved structure, effects of high flushing pressure and clean brushing can be guaranteed, the water tank can be thinned to 6cm to have the space saved, mounting and subsequent maintenance are facilitated, and attractiveness and practicability are achieved.

The invention discloses an immune algorithm based GPS induction path optimization method for a large cable machine. The method comprises the steps of determining a workable range of the cable machine, selecting initial paths of two cable machines in the workable range, encoding initial path information into an initial population, setting a maximum iterative frequency, performing affinity evaluation on the initial population, and screening out high-quality antibodies and low-quality antibodies; performing cloning operation on the high-quality antibodies and the low-quality antibodies to obtain a cloned population, and performing immunization and mutation operations on the rest of antibodies except the high-quality antibodies and the low-quality antibodies to obtain an immunized population; and performing concentration inhibition to obtain a new population, and outputting a result or returning to the evaluation step. According to the method, the safety, efficiency and operability of cable machine operation are comprehensively considered, so that the efficiency is ensured on the premise of enabling the cable machine to run safely; and the influence between the cable machines is considered and a highly optimized induction path is given, so that the risk of collision between the cable machines is effectively eliminated and the construction efficiency is ensured.

The present application provides a steering avoidance method and system for a trailer truck. The method includes: during the steering process of the trailer truck, determining the dangerous area according to the angle between the tractor and the trailer of the trailer truck, and The location in the area determines the collision avoidance strategy; during the execution of the collision avoidance strategy, if the driver’s manual collision avoidance operation is detected, the manual collision avoidance operation is used to control the trailer truck; Under the control of the collision operation, judge the change of the collision risk according to the position of the obstacle in the dangerous area; if the collision risk is not eliminated, use the A collision avoidance strategy replaces the manual collision avoidance operation to control the trailer. In this embodiment, the risks in the steering process are accurately evaluated to effectively avoid collisions.

A method and a system for collision avoidance in a hazardous area (4) of a logistics facility (2) that includes determining a first distance (14) between a stationary hazardous area monitoring apparatus (30) disposed inside the hazardous area, and a first sending and receiving apparatus (13) that disposed on an industrial truck (10, 11, 12) and connected to a control system of the industrial truck, and determining a second distance (24) between the stationary hazardous area monitoring apparatus and a second sending and receiving apparatus disposed on a movable object. A determination is made as to whether the first distance and the second distance are less than or equal to a predeterminable intervention area distance (6), and a collision avoidance action is carried out if both the first distance and the second distance are less than or equal to the predeterminable intervention area distance.

The invention discloses a track planning method for automatic butting joint of a fill-drain connector of a launch vehicle. The automatic butting joint process is divided into three stages, namely the approximating movement stage, the rough butting joint stage and the fine butting joint stage; then the automatic butting joint movement of the fine butting joint stage is described as servo tracking movement of a random measurable target, and a linear superposition method is adopted to divide the automatic butting joint movement into two parts; the displacement of the automatic butting joint movement is obtained after the movement amount of the two parts is subjected to linear superposition; and the automatic butting joint movement is finally realized. During the fine butting joint stage, the fill-drain connector needs to make contact with a vehicle body propellant filling opening, random shaking of the launch vehicle exists under the influence of the wind load, thus in the butting joint process, the risk that when the fill-drain connector is in butting joint with the vehicle body propellant filling opening, collision occurs exists, the track planning method provided by the invention can effectively eliminate the collision risk, and the safety of automatic butting joint is improved.