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As shown in
Figure 1, the principal hardware components consists of
A 6-MHz clocked MSP processor, with
60kB Flash Memory and 2kB RAM, controls the modules. The advantage of
using the MSP processor is that, together with a tailored hardware design,
low-power performance can be reached. When running in the lowest power
mode (with all modules either switch off, or in the sleep or stand-by
mode) the power consumption can go as low as 90μAh. This enables
applications where no external power supply is available.
The M110 is capable to handle the
TCP/IP, and can be used to connect to the GPRS network as stand-alone
(with connected sensors) or connect at terminal who has no TCP/IP stack
This
configuration makes the M110 unit a flexible device that can suite many
different type of applications. The basic unit comes with a GPRS Triband modem
only.
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Figure
1: Block diagram of the principal components of the M110
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The
GSM/GPRS Triband Modem is a G18 Modem for data-, fax- and SMS- transfer in the
GSM networks. From the moment the GSM Triband Modem is booked into the providers
network the device behaves like a standard modem or a fax modem. Configuring the
system is done out by using the V.24 serial port. For programming the serial
port the standard AT commands according to ETSI- standards. ETSI 07.07 or ETSI
07.05 is used. The modem is dedicated to applications in GSM 900 and 1800
MHz-Networks. It is suited as well for PCS 1900 MHz (USA). See
Table 1 for the exact frequencies and side bands.
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Table 1: Frequency band specifications of the Triband modem
| Band |
Incoming
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Outgoing
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Antenna
specification
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GSM 900
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890-915 MHz
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935-960 MHz
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880 - 960 MHz
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DCS 1800
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1790-1815 MHz
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1835-1860 MHz
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1710 - 1880 MHz
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PCS 1900
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1890-1915 MHz
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1935-1960 MHz
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1850
- 1990 MHz
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Incoming:
Mobile
-> Base station (25 MHz Range)
Outgoing: Base station ->
Mobile (25 MHz Range)
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The M110 also
supports GPRS data transfer. This means that a continuous connection can be
established between any intra- and inter-network. One only pays for the amount
of transferred data. A second advantage of using GPRS is the great improvement
in data transfer speed (up to 8 times faster as GSM data transfer). In the USA
and Europe the current available GSM networks are enabled to operate with GPRS.
In Table 2 the performance characteristics of the Triband modem is listed.
The
GPRS-Manager software, (On the download page) can be used
to easily test the GPRS functionality.
For
more details on the GSM / GPRS module see the On-Line
Motorola Documentation
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Operating systems
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GSM 900MHz, DCS 1800MHz, PCS 1900MHz.
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Voltage:
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3.0 to 6V measured at the I/O connector
during the transmit slot (576us
out of 4.6ms)
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Current:
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=7.2 +/- 0.5 mA @ DRX 2 Stand by (sleep)
=3.5 +/- 0.5 mA @ DRX 9 Stand by (sleep)
< 150uA off current
300mA avg. in call at power level 5 (max.
350 mA)
1.2 A peak @ 217 Hz at power level 5 (max.
1.8A)
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Host Protocol:
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CSD
GRRS
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AT commands including GSM 07.07,GSM 07. 05
(Chapter 4)
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| Data: |
CSD
GPRS
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1.
at 9.6, 19.2 and 57.6 kbps (over the air rate depending on network,
1.14 kbps max)
2.
Circuit Switched Data
RS232 user data: 57.6 kbps (over-the- air data rate depends on schemes
used SC1-CS4) GPRS packet data (SMG31) Class B (only when a handset is
used), multi slot class 1, 2 and 4, coding schemes CS1 to CS4.
1X (uplink)/2X (downlink) or 1X (uplink)/3X (downlink)
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PC FAX:
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Class 1 using Winfax, alternate between fax and voice (TS61)
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SMS:
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Send and receive (PDU and block mode per GSM 07.05)
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Voice Call:
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Supported I/O with external H/SET
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Audio:
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Analog - Full duplex I/O on interface
connector
Digital - Motorola Proprietary DSC Bus
Echo canceling activated by AT for Hands Free Audio applications
(analog only)
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The add-on module, the OnCore M12
unit, can be plugged into the M101. This highly integrated single board GPS
receiver module is optimized specifically for automotive applications. The
GPS receiver tracks the NAVSTAR GPS constellation
of satellites. The satellite signals received by an active antenna are
tracked with 12 parallel channels of L1, C/A code and then down-converted to
an IF frequency and digitally processed to obtain a full navigation solution
of position, velocity, time and heading. The solution is then sent directly over the
serial link via the 9-pin connector or can be redirected over the MSP to the
GSM Port and the GPRS network.
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General
Characteristics
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Receiver
Architecture
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12 parallel channels
L1 1575.42 MHz
C/A code (1.023 MHz chip rate)
Code plus carrier tracking (carrier aided tracking)
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Tracking
Capability
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12 simultaneous satellites
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Performance
Characteristics
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Dynamics
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Velocity: 515 m/s (1000 knots); >515 m/s at altitudes <
18,000 m
Acceleration: 4 g
Jerk: 5 m/s
Vibration: 7.7G per Military Standard 810E
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Acquisition
Time
(Time
To First Fix, TTFF)
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<15 s typical TTFF - Hot (current almanac, position, time,
ephemeris)
<45 s typical TTFF - Warm (current almanac, position and time)
<70 s typical TTFF - Cold (No stored information)
<1.0 s internal reacquisition
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Positioning
Accuracy
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100 meters 2dRMS with SA as per DoD specification
Less than 25 meters, SEP without SA
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Timing
Accuracy (1PPS)
Date
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< 500 ns with SA on
WGS-84
One user definable date
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SerialCommunication
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I/O
Messages
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Latitude, longitude, height, velocity, heading, time
Motorola binary protocol at 9600 baud
NMEA 0183 at 4800 baud (GGA, GLL, GSA, GSV, RMC, VTG, ZDA)
Software selectable output rate (continuous or poll)
3 V digital logic interface
Integrated pin on COM port for RTCM input
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Power
Requirements
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2.8 to 3.2 Vdc; 50 mVp-p ripple (max)
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"Keep-Alive"
BATT Power
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External 1.8 Vdc to 3.2 Vdc, 5΅A (typical @2.7 Vdc @ +25°C)
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Power
Consumption
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<0.225 W @ 3 V without antenna
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Electrical
Characteristics
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Dimensions
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40.0 x 60.0 x 10.0 mm [1.57 x 2.36 x 0.39 in.]
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Weight
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Receiver 25 g (0.9 oz.)
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Connectors
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Power/Data: 10 pin (2x5) unshrouded male header on 0.050 inch
centers (available in right angle or straight configuration)
RF: right angle MMCX female (subminiature snap-on)
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Environmental
Characteristics
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Operating
Temperature
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-40°C to +85°C
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Storage
Temperature
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-40° to 105°C
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Humidity
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95% over dry bulb range of +38°C to+85°C
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Altitude
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18,000 m (60,000 ft.) maximum
> 18,000 m (60,000 ft.) for velocities < 515m/s (1000 knots)
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Miscellaneous
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Standard
Features
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Motorola DGPS corrections at 9600 baud on COM port one
RTCM SC-104 input Type 1 and Type 9 messages for DGPS at
2400, 4800 or 9600 baud extra pin COM port One
NMEA 0183 output
Inverse DGPS support
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The receiver
architecture consists of 12 parallel Channels operating at Frequency 1575.42
MHz, C/A coded and Tracking Carrier aided. See
Table 3 for a full product specification.
The accuracy
is given by:
 | Position
25 m SEP without SA |
| 100
m 2DRMS (95%) with SA |
| 1
to 5 m typical in differential mode
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| Altitude
156 m RMS (95%) |
| Velocity
0.02 m/s without SA |
| Time
pulse UTC ± 500 ns with SA on |
The
OnCore Software can be used to easily test the GPS Module.
For
more information on the M12 GPS module see the On-Line
Motorola Documentation
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The
M110 offers a possibility to operate as a stand-alone unit by including an
add-on processor board. The processor
operates in an ultra low power mode and can control both the GSM and GPS unit.
In this way actual GPS coordinates can be provided on distance by using
the GSM unit as an intermediary. The
processor will be equipped with standard software that supports all basic
operations. On request we can make modifications to that software according to
user specifications. Also on request, we can support advanced programmers for
developing their own customized programs by providing them with a proper
development environment.
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