Mobile Data System - Product Overview
The ExtenSys Mobile Data System provides voice and data
dispatch to field users over private or public radio infrastructures.
Since it supports multiple dispatchers, it can be used for Field
Service dispatch of water heater calls or field orders, as well as
Control Room dispatch for switch sheets, protection permits, and
Components of the System
- Mobile workstations. These ruggedized
are equipped with a voice/data radio. They run mobile applications.
- Low cost wireless handheld devices such as browser cell
phones or PDA's. These can be particularly useful for managing and
communicating with contractor or "foreign" crews.
- Radio infrastructure. This can be a private trunked
voice/data, or other private and public infrastructures such as cell
networks (for wireless handheld devices).
- Mobile Applications.
- Dispatcher applications running on UNIX or PC workstations.
- Mobile data services running on a UNIX server.
The mobile data services consist of a Radio Service,
Distributed Document and interfaces to external systems:
- The Radio Service provides a reliable and efficient
transport of data over a wireless network. A transmission gets to a
person if possible. When a vehicle moves back into radio coverage, the
transmission is resent.
- The Distributed Document is a means of managing concurrency
of documents distributed in the field and on the host network. Field
and control room staff can work with the same current version of a
document. Multiple field crews can share the same work.
- With the Customer Information System (CIS) interface,
customer service documents flow directly into the dispatch system with
minimal dispatcher intervention required.
- The Outage Management System (OMS) is the source of
documents such as switch sheets and trouble calls for dispatch.
Integration with Other Systems
This system has been integrated with distribution management
systems, and is designed to easily interface with other solutions. It
runs on a standard OS platform and can be adapted to suit your needs.
It has an efficient "look and feel" user interface and can be
customized and adapted to simulate the other applications it interfaces
- Dispatcher Queues. These automatically assign work to a
changing number of dispatchers. This means no work is ever overlooked,
and staffing becomes more flexible. The field is given a predicted
response time so they can plan their work better and experience less
frustration while waiting.
- Vehicle Status List. This provides the location and status
of each field crew. This provides better crew management.
- Document Editors. A variety of editors are available. For
each type of document, basic time stamps are kept which can be used to
generate performance metrics. Sample types of documents for an
Electrical system might be:
- Water Heater Calls, Field Orders, and Trouble Calls.
These are sent to the field, the field crew acts and reports
results. The documents can be recalled or updated as conditions change.
- Protection Permits. These have a more complex lifecycle
of being requested, issued, accepted, and surrendered by the field.
- Switch Sheets. The dispatcher gives permission to execute
a block of steps. When completed in the field, the field response
automatically updates the OMS model. This means the model is more
easily and accurately kept up-to-date.
- Work Queue. This allows the field crew to organize their
- Vehicle Status. This is a convenient mechanism for the
field crews to enter their location and status. Supervisors can use
- Document Editors. These are efficient form-filling
applications. They typically provide enough information for the field
crews to deal with customers.
- Communication Status. This shows the state of the radio
- Request-to-speak. The field crew can request a voice
conversation with a specific dispatcher.
Mobile User Interfaces
- When browser cell phones, PDA's, or Blackberry-style
devices are used to communicate with field crews, they can serve as
both the voice and data tool, so long as they have both voice and data
functionality. Initial dispatching can occur either via voice (phone
call) or text message. The crew then accesses their work details by
"browsing" to the information pages. When the work is completed, the
crew uses the same browser to submit data back to the server for
automatic system updating.
- Power users requiring a larger screen and the need to run
other applications such as map viewers can use a ruggedized PC.
more information on Mobile Data Systems, contact Jim Stewart at (416)