
How Does GPS Vehicle Location Save
Me Money? |
Accountability: You will be able to track a vehicle
24 hours a day thereby giving you a precise account of an employee's
activities.
This is the only way to accurately monitor productivity and be
informed about all breaks, unauthorized trips, after hour usage,
etc. By being able to determine how much time was spent at each
location you ensure that your employees are on task when they
are on the clock.
Competitive Edge: There was a time
that being dispatched by radio, rather than paper directions,
was considered
a competitive edge in the service market. In today's technologically
advanced world, GPS/AVL systems are the latest "edge" because
improved customer service is inevitable.
Dispatchers: Because of the high-stress nature
of dispatching, the average turn around rate for employees
in this position is 2 years. This system reduces the
stress and frustration of dispatchers by tracking and monitoring the fleet
for them. With less turn around you cut down on training and
hiring costs. It provides
actual location and directions which makes even the best dispatchers more efficient
in their position. Also, you will save valuable time each day in lost drivers
and incorrect directions.
Fuel: According to the Department of Transportation, driving
a vehicle at 55 mph instead of 65 mph will cut your fuel consumption by 21%
You can even set
the Street Smarts program to notify you if any of your vehicles are moving
faster than the specified limit.
Insurance Costs: AVL (automated vehicle location) gives you
the ability to track the location and speed of every vehicle at any time _
this means less after-hours
usage, liability management and documentation, and less speeding and parking
violations.
Reduced Billing Time: Our program tracks actual time between
jobs, at jobs, and enroute to jobs. This information is logged and can be saved
for billing purposes.
Features |
-
Dual Mode: 1200/2400
Baud MSK
-
8 Channel internal GPS with
backup power supply
-
6 General purpose I/O lines
for vehicle monitoring or remote control
-
Programmable inputs for GPS
on Demand and Code 3 Alert
-
Compact: Only 6" x 5.25" x
1.25"
-
Rugged extruded aluminum case
-
LTR® and Motorola trunking
compatible
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PC programmable
-
Non-volatile E2PROM stores 1024
position fixes for later replay
Introduction
The Merlin series AVL from Pyramid Communications is a microprocessor
controlled GPS based Automatic Vehicle Location device that
connects to an existing conventional or trunking two-way radio.
The unit will automatically send its position information
to dispatch on a programmed interval. The Merlin AVL has
3 inputs that can be used for general purpose vehicle monitoring
(doors open, shotgun removed, etc.) or can be programmed
for special functions. The AVL also has 3 general purpose
outputs that can be used to alert the driver when out of
the vehicle or for remote control of vehicle functions. The
Merlin AVL easily interfaces to any conventional or trunking
mobile. Position updates are stored in non-volatile E2PROM
memory for download and playback at a later time. The Merlin
is capable of storing 85 hours of vehicular activity at 5
minute update intervals.
Dual mode operation
The Merlin AVL will automatically send its position information
on a pre-programmed interval. One of the general purpose
inputs can be programmed as a Code 3 input. When activated,
the AVL
will update at shorter intervals for more accurate tracking
by dispatch. Both update rates are PC programmable. Normal
rate can be programmed between 1 minute and 4 hours in one
minute increments. Code 3 rate can be programmed between
5 seconds and 20 minutes in 5 seconds increments.
Smart Trunking Access
When the Merlin AVL is connected to a trunking radio and a
GPS update is sent, the unit will key the radio for 200mS;
it then monitors the radio's transmitter for an on-air condition.
If it does not see the radio transmit at all (system is busy),
it will retry every 4 seconds until successful or time out
(60 seconds). When it detects that the radio is transmitting,
it will continue to monitor the on-air line until the transmitter
remains keyed for at lease 400mS to ensure that the radio
is not handshaking or retrying. After successful acquisition
of a voice channel, it will send it's status request ensuring
the message is received by the base.
Automatic Vehicle Tracking Storage
Each update is stored in non-volatile E2PROM memory for later
recall and play back. The Merlin is able to store 1024 position
fixes including date, time, speed, heading and position fix
within 50 feet. The data is stored in a circular que with
the oldest data being overwritten with each new position fix. The
Merlin AVL can store 85 hours of vehicular activity at 5
minute update intervals.
Programmable Inputs
The Merlin AVL has 3 general purpose inputs that can be used
to monitor vehicle status such as door open, shotgun removed
from holder, etc. Each input has a special function that
can be enabled via PC programming. Input 1 can be programmed
for Emergency transmission to alert dispatch in the event
of a pending emergency. The number of emergency transmissions
is programmable. Input 2 can be used for GPS on demand that
will send a position fix when ever a switch is closed. Input
3 can be used for Code 3 input to change the update rate
between slow and fast.
PC programmable
The Merlin AVL is PC programmable for all operating parameters
using the FY-1 programming cable. Signalling speed (1200/2400),
PTT delay, # of retires, I/O polarities, normal and Code 3 update
rates, Emergency operation and GPS on Demand can all be programmed
via the PC software.
System design
The model Merlin works in conjunction with the model 2016 intelligent
modem that connects between a PC or mainframe/mini computer to
provide a complete dispatch system. The 2016 interfaces with
Street Smarts Mapping software or Manning Navcomp's RasTrac for
GPS and
Automatic Vehicle Location.
The high speed RS-485 data bus provides expanded
capabilities such as credit card readers, thermal printers, and
vehicle monitoring. The data bus can address up to 256 peripherals
and provides seamless upgrade path to future options without hardware
change outs.
Specifications |
| General |
| Operation: |
8 channel GPS with automatic and manual reports |
| Storage: |
Non-volatile E2PROM with 100 year data retention |
| Interface: |
Radio:DB15M Data bus:DB9F GPS Ant:SMA female |
| Data Bus: |
RS-485 9600 baud bi-directional multi-addressing |
| Application: |
Conventional and Trunking mobiles |
| Adjustments: |
Rx Sensitivity, Tx Deviation, Squelch threshold |
|
| Power Requirements |
| 13.6 VDC +/-25% @ 200mA nominal |
|
| Encoder |
| Format: |
Dual Mode: MPT-1317¹ |
| Speed: |
1200/2400 Baud MSK |
| PTT Delay: |
.1-2.5 Sec in 100 mSec steps |
| Tx Audio: |
0-2.5 VRMS 2.2K Ohms, AC coupled |
|
| Decoder |
| Format: |
Dual Mode: MPT-1317¹ |
| Speed: |
1200/2400 Baud MSK |
| Rx Audio: |
Hi-Z (100k Ohm) AC coupled to discriminator |
| Level: |
20mV - 10V RMS |
| CTCSS Reject: |
-36db @ 74 Hz |
|
| Outputs |
| PTT: |
Active Low 2 A open collector |
| Audio Mute: |
Active Low 2 A open collector |
| Mic Mute: |
Active Low 2 A open collector |
| Aux 1-Aux 3: |
Active Low 2 A open collector |
|
Specifications subject to change without notice
For More Information on the Merlin
Automatic Vehicle Location
System
Please Contact Us
(800) 255-6584
e-mail: info@fisherwireless.com
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