Aerial survey interior work map sheet land class processing standard man-hour calculation method and system and application

Abstract

The invention discloses a method for calculating land class standard processing man-hour, which is applied to the field of aerial survey interior work mapsheet processing, and comprises the following steps: 1, constructing a sample set, the sample set comprising S sample map sheets, and each sample map sheet having at least two land classes; counting the processing time Ts of each sample map sheet and the area of each land class in the sample map sheet, wherein the area of the c land class in the s sample map sheet is asc, s is equal to 1, 2,..., S, and c is equal to 1, 2,..., C, c is the total number of land classes, S is greater than c; 2, establishing a linear model between the processing man-hour and the ground class area: AestWest = Test; wherein the Aest is a matrix formed by the area of each ground class in the mapsheet, the West is a vector formed by standard man-hour of each ground class, and the Test is mapsheet processing man-hour; and 3, calculating a model parameter West by adopting an RANSAC algorithm to obtain standard man-hour of each land type. According to the method, the standard man-hour can be calculated according to the man-hour data recorded in actual production, so that the processing man-hour of the mapsheet is estimated, and the influence of over-high or over-low efficiency of an operator on calculation of the ground standard man-hour is avoided.

Description

technical field [0001] The invention belongs to the field of aerial surveying and mapping internal business processing, and in particular relates to a calculation method for standard man-hours of map-sheet land-type processing, and the application of the method in man-hour estimation. Background technique [0002] In the internal production of aerial surveying and mapping, a large-scale survey area is generally divided into multiple map frames, and operators process the map frames. The standard man-hour is the time required to process a map frame per unit area, and is an important basis for map frame processing time estimation and operation planning preparation. When the data processed in the office, the type of product and the efficiency of the operator are all determined, the most important factor affecting the standard man-hour of map processing is the distribution of land types in the map. The processing difficulty of different land types is different, which often makes...

AI Technical Summary

Problems solved by technology

Although this method is simple and easy to implement, there is a big problem that it is easy to underestimate the standard working hours of land types

The reasons include: during the special evaluation, the data is usually pre-equipped, the switching between the processes is tight, and the work efficiency of the operators is always at a high level, that is, the special evaluation is an ideal working state, and the actual operation is often unable to achieve the special High-level operating conditions and operating efficiency during the evaluation, and the special evaluation cannot reflect the normal state of the map operation

In addition, the number of maps used for special evaluation is small, which cannot fully represent the overall processing difficulty of this land type

The above factors cause the actual working hours to be longer than the standard working hours

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