Aiming at demand of automation and integration of portable equipments used in forest survey

a handheld type multifunctional gauge

GForest

is designed with a prototype. GForest integrates height indicator

angle gauge and the computation of forest stand’s volume all together and thus has functions including measurement

data storage and camputation and other functions. GForest realizes anti-shake design through sampling control algorithm

use counter to store and control result of angle gauge counting and share datas with other equipments such as PCs and mobile intelligent terminal through USB port

aiming to solve problem of desynchrony of development of informationization of hardware equipments used for data collection in forest ground survey and data collection software. By this design

GForest can reduce hand works of data recording and typing-in in forest outdoor survey by a large extent and improve efficiency of outdoor data collection

through test and verification

the tested average error of tree height measurement using GForest is 4%

which shows the same outstanding performance as the similar import devices

furthermore

it has utility functions of angle gauge winding test and control

and has obvious advantage in cost which makes GForest suitable for application in industry.