Virtual Design Group, Inc.   VIRTUAL DESIGN GROUP IS A PRODUCT DEVELOPMENT COMPANY COMMITTED TO THE PRODUCTION OF INNOVATIVE, MARKET-DRIVEN, TECHNOLOGY PRODUCTS AND SERVICES.

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WIRELESS SYSTEMS

Low Cost GPS Wireless Tracking System

The Virtual Design Group wireless tracker is designed to permit low cost tracking and control of assets via the wireless network. Utilizing a Telit wireless module, the device has flexible software that can be downloaded and configured on the unit to modify power management or to add in device control logic, for automated action without network interaction. In addition, it can detect device events, such as movement, or input triggers, and notify the server remotely via GPRS or SMS. The design includes a quad band wireless modem for seamless world wide operation and a Sirf Star III GPS for unparalleled position accuracy and acquisition, even indoors for some applications.

At only 2.5 inches by 2.5 inches by 1 inch, including two antennas and battery, the device can be easily mounted or concealed. With FCC, PCTRB, and ATT network certifications, a speedy deployment is possible. The wireless chipset includes jamming detection and on board log capacity of up to 3Mb.

VDG Tracker

The VDG Tracker supports a standard set of commands to activate the controls wired to the units, monitor inputs, and report configurable exceptions. In the single user use case, the operator can SMS the unit with a location request or control action, and the unit will reply with the current position or the control setting is acknowledged.

Server Location

If the device enters or exits a series of configurable GPS box definitions, the unit will send an SMS to the notification number automatically. The boxes can have complex, boolean, nested triggering configurations. Each can be triggered separately upon entry or exit, allowing close monitoring. The device can be controlled by a server or completely independantly of a formal back end. All operations require a password, which is configured in the unit and may be updated over the air..

The design is available for license or customization, and we have a relationship with a mass manufacturing partner. Please contact us directly for further details.

Telematic Client Server Navigation System

Virtual Design Group engineers took an existing CD-Rom based navigation system that was expensive and exhibited software reliability problems, with a Bill of Materials cost of over $350, and redesigned the hardware and software to produce a unit with a total cost under $100 operating reliably over a wireless phone network. The VDG team managed the entire process from product concept to hardware design, software implementation, and server deployment.

The new system included a back end server platform, whose architecture is capable of delivering a variety of future location-aware services, in addition to navigation, as the company grows. Services such as traffic updates, and web searches are planned.

NavStar Navigator

Improvements were specifically designed to simplify the manufacturing process and lower the per unit cost. The new design is much more compact and portable that the previous unit, and included a significant software re-write including a real-time operating system to improve system response and voice recognition.

Key features of the improved hardware design included an FPGA and two PLDs to implement software-reloadable interfaces to a variety of phone handset control methods including variations of RS232 and USB, selection of a complex, but cheap and readily available codec chip which provided tremendous flexibility while reducing cost. The team coordinated the manufacture of prototypes by the team in China, and worked extensively remotely, using electronic conferencing and a variety of visual collaboration tools to reduce product cycle time with Asia and improve cooperation and understanding throughout the team, whether they were located in Atlanta, Kansas City, San Jose, Hong Kong, or Guangdong.

VDG engineers researched relevant issued patents to confirm the process and architecture did not infringe on existing patents and/or confirmed the existence of prior art that established the approaches were based upon methods known in the public domain.


Digital Board, Analog Board, and Cell Phone Interface Module.

(Left to Right)

Old Navigator before VDG effort, Vitual Design Group designed board stack and initial industrial design.

Side by side comparison clearly shows relative size of original and VDG design.

Consumer-replaceable cell phone interface module.

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Key to the success of the design was the creation of a hardware platform that provided an abstract interface to a variety of corded cell phone handsets, with a replaceable hardware module to allow the base unit to be switched between different modules. A cordless Bluetooth module is planned.

Complete assembly: Navigator, GPS, Phone interface module with handset.

In-Vehicle Telematics Network

Virtual Design Group participated in a group effort to perform needs analysis and trial design to determine the cost effectiveness of a complete re-design of an in-vehicle computer system. A complete master plan was created for the development of a new, more configurable, In-Vehicle system. Tasks ranged from creation of customer profiles, logical functions, functional requirements, design alternatives, segmentation of requirements by customer need into a stratified product line, and the integration of all these individual elements into a complete software development plan. This project was implemented by Virtual Design Group and is currently under deployment trial in several large transport, trucking and package delivery fleets.

Z-80 Based In-Vehicle Telematics Unit

PIC Odometer Tracking Unit

Platform-Independent Operating Environment

A Virtual Design Group client desired to produce wireless applications that could be quickly ported to a variety of remote devices. Some of these remote devices were in use at the time of the project definition, some were unknown or their market availability was indeterminate. Virtual Design Group created a set of Operating System-independent Application Programmer Interfaces, that allowed the easy development of cooperating multi-tasking applications. This hardware and operating system independent API allowed the development and debugging of applications in a rich Win 32 environment, while allowing identical code to run in each target environment.

Location Based Service PQA

Virtual Design Group created a demonstration application providing interstate exit and truckstop service information for the Palm VII. The development consisted of normalizing the database, converting it to a web-hosted environment, creating appropriate HTML and PQA documents to serve the pages in a variety of prototype display formats.

Very Low Cost Telematics Unit

Virtual Design Group engineers designed and prototyped a very low cost vehicle telematics unit with features that included: vehicle locate, panic, factory alarm forwarding, lot monitoring, tow protection and a demonstration central monitoring system. This product is available for sale and license with and without custom software engineering and support.

RIM Blackberry Pager Development

Virtual Design Group engineers have developed a number of applications and integration efforts for the Research In Motion (RIM) Blackberry wireless pagers using the Mobitext network. Technologies used include: C/C++ and Java J2ME SDKs, RIM APIs, Rim 950 Pager, 957 PDA, 902M Radio Modem, the operating systems used on those devices as well as the Cingular MyBiz Interactive system (RIM 952) and the Cingular MIST Middleware system. Virtual Design has deployed Cingular Interactive’s Internet Access Service to interface a custom application to the Mobitex network. A custom remote hardware device communicated with a MIST-based application over the serial interface on the pager, and the pager then relayed messages between a central server application and the remote unit connected to the pager. The pager application interfaced to both the MIST and RIM Radio APIs for maximum wireless communications flexibility.

AMPS, GPS, Satellite, OEM Phone Projects

Virtual Design Group engineers have been involved in the development of a variety of GPS, Satellite, and cell phone integration efforts, some of which are currently restricted by non-disclosures. If you have a specific need in this area, please ask and we will be glad to discuss our capabilities in more detail and provide references if permitted.

Symbol Palm Interface

A major international overnight package shipping and delivery company required an interface between a wireless data transmission system and Symbol ruggedized Palm Pilot in-vehicle data capture and identification system. This effort involved the integration of two data capture devices with a wireless transmission system and a user data entry terminal in the vehicle. A data retrieval strategy was designed and implemented to gather the information from each terminal on a server on a daily basis. Virtual Design Group engineers created a series of reports to assemble the data gathered and automatically note the exceptions that were identified by characteristics present in the data collected.



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