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 inventory 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.
Settings
In Ivent's startpage you can find the menu Settings. Some of the settings are the following:
- DatabasePath
- The path to where subfolder with database files are stored. For display only. Can only be modified by editing the app.ini file directly in a text editor.
- Comport GPS
- Com-port for GPS. Default = 9.
- Comport Caliper
- Com-port for caliper. Default = 8. Set to 1 if you use Mantax caliper and Archer PDA
- Species Order
- Determines the order in which tree species codes are listed when entering tree codes in forms.
- SampleTreeSelectionMethod
- Method for selecting sample trees, that is caliper trees for which additional measurements to diameter and species are made, such age, height and barh thickness.