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        1. Industry applications

          Elevator three-dimensional measurement

          Elevator three-dimensional measurement case

          Shanghai Elevator Equipment Co., Ltd. entrusted Hualang three-dimensional measurement of this elevator to a length of 18 meters, huge size. According to the actual situation of the company, Hualang engineers used the three-dimensional photogrammetry system HL-3DP, which took only one hour to obtain the three-dimensional data of the elevator with an accuracy of 0.25mm.

          Practical problems

          1. The length of the elevator is 18 meters, the size is huge, and the elevator has many curved surfaces, the structure is complex, and the measurement is difficult.

          2. The traditional measurement method of the elevator company is manual measurement, and the time cost labor cost is too high, and the precision error is extremely large.

          Hualang solutions

          According to the actual situation of the company, Hualang 3D engineers decided to use the 3D photogrammetry system HL-3DP to obtain 3D data of the elevator. The 3D photogrammetry system HL-3DP is a handheld high-resolution (4288×2848) digital camera that takes digital photos of the measured object and superimposes the 2D digital photo images to obtain the 3D coordinates of the measured object. This mobile technology can effectively save measurement time for 3D coordinates, quality control and deformation analysis of the measured object.

          1. Preparation in the early stage

          Paste code point: Make 3D photogrammetry system obtain 3D coordinate value of object surface.

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          Paste code point

          2. 3D photogrammetry
          The length of the elevator is 18 meters, the size is huge, the elevator has many curved surfaces, the structure is complex, and the measurement is difficult. Hualang engineers use the 3D photogrammetry system (HL-3DP) to capture multiple images of the elevator. Through the 3D ranging method, the HOLON3DP software automatically combines these images and calculates the 3D coordinates of the center of each code point. Calculate the 3D coordinate value of the key information points on the surface of the object. Using the acquired 3D data, quickly detect the difference between the elevator (CAD) model and the product, and clearly know the quality of the elevator so that the company can improve the product in time.

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          3D photogrammetry site

           

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          3D photogrammetry site

           

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          3D photogrammetric data

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