User's guide to Ivent
Introduction
Ivent is an Windows Mobile application for handheld devices. It is used for field inventory of sample plot data. PlanStart is used for setting up a sample design, and export data to Ivent, and import it back and process the collected data.
The inventory of a sample plot includes the registration of tree and site characteristics. The application can retrieve data from peripheral devices (through Bluetooth or other radio), including a digital caliper (for tree diameter measurement), a clinometer (for tree height measurement), a GPS, and a new tree positioning device (PosTex).
Main steps
Considerable techniqualities are involved in a field inventory. In short, a field inventory includes the following steps:
- Import a stand register
- Set up a sample design
- Set up an inevntory and export data to a database file
- Copy the database file to the field computer
- It is possible to distribute an inventory over several field crews just by distributing the same file created in the step above. PlanStart can handle this when importing back to the system.
- Do field inventory with Ivent
- Import field inventory data back to PlanStart
- If you have distributed the inventory to several computers, you can import them one by one until the whole inventory is completed.
Field inventory instructions
Instruction from 2008 (in Swedish) NB: This instruction is from field-studies made in summer '08 and has not been updated in accordance with the latest version of Ivent.
Software instructions
From Mobile to Forest database
How Do I?
Considerable techniqualities are involved in a field inventory. In short, the work always begins indoors, with PlanStart and other softwares (e.g. GIS) and available information, before entering the outdoors, fully equipped. Back from field, and now loaded with information about the forests; the stands, the plots, and the trees, the user will once again be stationed by the computer to finish the work in PlanStart. Finally, there should be a forest described and imported to a Heureka forest database, ready for analyses with, e.g., PlanWise.