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Radio Frequency Readers

Radio frequency readers are the ultimate solution to many applications' needs --

especially any computer remote application that can benefit from the computer

checking and instructing the operator. Warehousing applications such as

picking, put-aways, shipping, and receiving are typically better performed by RF

readers because the computer can instruct the operator where to go and what to

do based on everything that has just happened, plus the computer files are

current as to exact status and location of available inventory.

RF Readers are like on-line terminals, but wireless. The user can roam around

his local facility scanning and keying data and getting a response from the

computer with each entry. Therefore the computer can very carefully edit the

data for errors as well as prompt the user for what to do next considering the

data that has just been entered. The classic RF applications and associated

advantages are:

1) Picking - routing of the picker; computer instructed substitutions; real-

time status of the order.

2) Put-Aways - inventory is available for sale or manufacturing immediately.

3) Receiving - purchase order shortages can be immediately determined.

Critical parts can be routed to manufacturing immediately.

4) Shipping - eliminating wrong or incomplete shipments by computer-

checking before loading or even computer-led loading.

When battery-operated printers are attached to RF Terminals, additional

application possibilities open up:

1) Rental car check-in including printing the receipt in the lot.

2) Replacement shelf label printing in retail stores. If the price on the shelf

isn’t correct, the operator can simply print a new shelf label.

RF Readers that Emulate Terminals

These readers started out as mainframe terminal emulators such as IBM 3270 or

5250 terminal emulation. To emulate an IBM mainframe terminal is no easy task,

so the cost was very high, (i.e. $10,000 per control unit, $4000 per terminal).

Today there are several emerging terminals that emulate PC workstations (i.e.,

Symbol Technologies and Intermec) on NT or Netware Local Area Networks.

These machines are 486 computers with lots of memory and download their

software from the network server. They are relatively expensive, about $3000-

$5000 per terminal, require an operating LAN, and usually require a network

controller that is $3k-$10 in cost. These terminals almost always require a C++

program to be written on the terminal and the host programs to be modified to just

use the upper left hand corner of the screen. Competent network management

personnel are also required for each location.

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Worth Data 5000 TriCoder s Especificaciones Pagina 15