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817results about How to "Easy to block" patented technology

Overhead power transmission line optimized line selection method based on airborne laser radar data

The invention discloses an optimal route selection method for overhead transmission line route. Onboard lidar equipment is adopted to acquire laser point cloud data and aerial digital photo data of the transmission line route corridor range; the onboard lidar data is processed after the wave filtering and the sorting of the laser point cloud data, and the points of the ground surface are made into a digital elevation model with high precision; then data processing is carried out by utilizing the data of the digital elevation model with high precision and ortho-rectification is carried out to the aerial photo by utilizing the internal and external orientation elements of the aerial digital photo to generate digital orthophoto maps; through the overlying of the digital elevation model and the digital orthophoto maps, the tridimensional visualization of the transmission line route corridor can be realized to optimize the transmission line route selection; finally prearrangement of power pole and power pole arrangement are carried out according to the data of plane cross sections. The route selection platform of the invention has simple operation and lifelike tridimensional scene, thus being convenient for full roaming and multi-view observation and greatly improving the efficiency of the inner plane cross section survey operation. Compared with the optimal route selection technology based on the aerial photographing measuring method, the efficiency of the inner plane cross section survey operation can be improved by about 75 percent.
Owner:GUANGXI ELECTRIC POWER IND INVESTIGATION DESIGN & RES INST

Full-automatic railway track detection vehicle capable of avoiding trains

The invention discloses a full-automatic railway track detection vehicle capable of avoiding trains. The detection vehicle is composed of three parts, namely a frame, contractible wheel devices and a vehicle body lifting device, wherein each contractible wheel device is represented as a Pi-shaped component (Pi: ratio of circumference to diameter) formed by welding three stainless steel rectangular pipes in the form of two transverse pipes and one vertical pipe; two ends of the vertical rectangular pipes are connected with two power motors and track wheels by virtue of hinges and are provided with shock absorbers; the power motors are coaxially connected to the track wheels; the two transverse rectangular pipes are connected to the frame by virtue of chutes; push rod motors are connected between the contractible wheel devices and the frame; the contractible wheel devices are respectively connected to the left and right ends of the frame; the vehicle body lifting device is composed of rhombic jacks and a support frame; the upper part of each rhombic jack is connected to the frame and the lower part of each rhombic jack is connected to the support frame; the rhombic jacks are respectively arranged in the front and at the back of the frame; and the lower part of a lifting platform is connected to a vehicle body by virtue of a plurality of lifting rods. Since the track wheels are connected to the vehicle body by virtue of the contractible wheel devices and the chutes, the detection vehicle disclosed by the invention can change tread, reduce volume and can be hidden in the track, so as to avoid trains conveniently.
Owner:EAST CHINA JIAOTONG UNIVERSITY

Completely autotrophic nitrogen-removal reactor and nitrogen-removal process

The invention provides a completely autotrophic nitrogen-removal reactor. A nitrosation-anaerobic ammonia oxidation region is arranged on the upper part of a reactor barrel, a first packing assembly is arranged in the nitrosation-anaerobic ammonia oxidation region, anaerobic ammonium oxidation bacteria are attached to the inner layer of the surface of the first packing assembly, and nitrosobacteria are attached to the outer layer of the surface of the first packing assembly; a denitrification region is arranged on the lower part of the reactor barrel; a second packing assembly attached with denitrifying bacteria is arranged on the denitrification region; a film assembly is arranged at the top end of the nitrosation-anaerobic ammonia oxidation region; a water outlet communicates with a water outlet side of the film assembly; an aeration device is arranged in the nitrosation-anaerobic ammonia oxidation region and is positioned below the first packing assembly; and a first three-phase separator is arranged between the first packing assembly and the film assembly. By the reactor, pollution and blocking of the film assembly are prevented effectively, the effect of treating waste water is enhanced, and whole completely autotrophic nitrogen-removal reaction can be carried out efficiently and stably.
Owner:CHINESE RES ACAD OF ENVIRONMENTAL SCI
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