Wireless GPS And Digital Data Dispatch Devices
Portable Data Terminals (PDTs)
The portable data terminal combines the portability of a PDA with the utility of an MDT. Although they are somewhat costly, ($2000 to $5000) they are the ultimate solution for a high-end workforce productivity application. Unlike the MDT however, the PDT is designed to operate over public data networks rather than private two-way radio networks. Often, a PCMCIA or OEM slot allows a data radio modem to be selected for the network of choice, such as iDEN, GPRS, 1X or CDPD. See the article on wireless networks for more information.
These devices are available with an array of special integrated peripherals, such as signature capture, credit card readers and bar code scanners. A primary difference between a PDA and a PDT is that the PDA is a horizontal consumer product, whereas the PDT is often a vertical market industrial product. As a result, the PDT may provide greater durability, battery life, improved ergonomics, etc.
A fundamental difference between PDT's is determined by their operating system. New state of the art PDT's often use Windows CE as their operating system, whereas other employ a proprietary system. Units with a proprietary operating system are normally restricted for use with a software application from the same vendor. If that software application meets a company's needs well, then the combination can provide a solid solution. However, in this case, it is unlikely that the units can be used to process other applications.
Windows CE based PDT's allow users to select a workforce software application from any vendor, as well as the ability to use standard Windows software programs, such as Microsoft Office applications.
Portable Data Terminals - Pro's
- Fully portable -allows worker to remain in contact when out of vehicle
- Powerful integrated micro-processor allows local client application processing
- Rugged –designed for commercial grade use
- Wide range of integrated peripherals, Bar Code, Signature, GPS, Credit Card
- User friendly - improved ergonomic, some units even convert text to speech
- Improved coverage performance than PDA's due to antenna design
- Bright, easy to read display
- Available with a wide range of public data network integrated modems
Portable Data Terminals - Con's
- High capital cost
- Lack of integrated voice communications
- Subject to physical loss by workers
