Smartphone And Tablet PC Tree Measuring System And Software Implementation

China is a forestry superpower. The outcome of the fifth national forest inventory indicated that there were 3.95 billion mu forestry land,2.38 billion mu forest,12.49 billion cubic meter growing stock volume,11.27 billion forest volume and forest coverage to 16.55% at present. A lot of foresters are involved in forest resource survey per year. However, there still are many shortcomings such as the heavy and old facilities compared to the modem technology, which makes the work of forest resource survey always be difficult nowadays. And the meaning of this measure system is mainly based on mobile phone and tablet PC widely used in forest resource survey with Android, which living up to National Forestry Bureau’s demand of promoting forest information is much more simple and convenient for foresters to carry and work with and has certain reference significance for software development.This system, mostly taking advantage of built-in camera, angle sensor, GPS, multi-core processor and enhanced in-memory database, includes functions like photography measuring caliper tree, record of the first and the second forest survey, electronic angle gauge, volume calculating, record and transforming of GPS, traverse survey records, control the CCD camera buck precision. We analyzed these functions’demands respectively, software design, function realization and finally did research as well as collect data at blocks in Beijing, which convinced that the function and the accuracy of this system basically met the demands of daily forest resource survey and make differences in actual use and expanding.