WetPC logo   Hand Held Data Rekorder
We make an intuitive, ambidextrous chording Human Machine Interface HMI for Human Computer Interaction HCI
using a chordic Graphic User Interface GUI, suited to wearable and handheld, onehanded mobile computing devices.

handheld computer with chordic GUIHand Held Data Rekorder 
The Hand Held Data Rekorder (HHDR) was developed as a prototype for the Australian Army for use by Observer/Controllers during combat training exercises. It consists of a Palm-PC (PPC) in a splashproof cover, a 5 button Kord® Pad and Kord® Software which enable the PPC to be operated with one hand.

The PPC (Casio E-11), slids into a plastic backshell which has a serial connector plug at the bottom. The backshell provides the PPC with a rigid protective cover along the back and sides. A canvas (camouflage) cover fits around and over the backshell to protect it from water and dust. The cover has a clear vinyl panel on the front so that the touch screen can be worked using the stylus.

The Kord® Pad, which connects to the serial plug at the bottom of the PPC casing, is made from powder coated metal and has five waterproof switches (IP 66 rating ). Attached by Velcro at the back of the casing; the hand-piece (which can be used by either hand) can be positioned to enable correct orientation of the screen.

The unit is small enough to fit in a soldier’s pocket (thigh or chest) or in a small bag around the waist. The PPC can be easily removed from its protective cover for docking with a conventional desktop computer.

 


Software screenshot
CScore is a program designed to run on the Windows CE Operating System (V 2.1). It provides a chordic graphical user interface (CGUI) which enables the Observer/Controllers to enter and display information on soldier performance using one hand. Information is input by either the computer’s stylus or by pressing buttons on the Kord® Pad - called chording.

The CGUI consists of a hierarchy of screens (maximum of 4 levels) which are accessed though a main menu by chording or tapping buttons. Users can enter ordinal data (1-4, -) or record time (by running stopwatches) on up to 10 separate activities and sub-activities (3 levels). Only three of the former (Patrol, Attack, and Defence) were implemented for field trials conducted by the Army in May 1999. The interface is Main menu of CScore
fully configurable and up to 10 fields and 6 serials (replicates) are available per screen.

Notes on activities and individual performances can be made using the computer’s stylus. All data is stored in memory which can be easily downloaded to a desktop computer using the HHDR’s in-built docking procedures. Users can choose to delete the data file and create a new one, as well as enter general information about the training exercise (ie. time, date, location, name of user). These setup options are accessible through the main menu.

 

 

Basic Specifications 
Computer: Casio E-11; VR4111 CPU; 8MB RAM & 8MB ROM ; 240 x 320, Bright
Back-lit, FSTN liquid crystal, 4-scale monotone
Casing: plastic backshell with canvas cover (camouflage)
clear plastic front cover
Data Input: 5 button Kord® Pad; IP66; powder coated (black) metal; with serial
plug and cable; computer stylus
Software: Windows® CD Operating System; CScore Kord® Software
Weight: 380 gms (with PPC)
Dimensions: 100mm x 175mm x 65mm


Glossary  Contact us © 1997-2005 WetPC Pty Ltd   Altered June 27, 2005