Dagama SG-288 Manual de usuario
SG-268 Manual V1.0
Dagama Confidential © All Rights Reserved SG-288 Manual V1.1
USER’S GUIDE
SG-28
SG-28SG-28
SG-288
88
8
LCD
LCDLCD
LCD Display
DisplayDisplay
Display Bluetooth
BluetoothBluetooth
Bluetooth GPS
GPSGPS
GPS Receiver
ReceiverReceiver
Receiver
V1.1
Dagama
DagamaDagama
Dagama Technology Inc.
Room 1159, No.66, miaojing Road, Minhang district, Shanghai, PRC
E-mail: service@dagamagps.com http://www.dagamagps.com
Free Service Hotline:400-800-1322(only for China mainland)
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Contents
1. Introduction
………………………………………………………..…………. 2
1.1 Overview ……………………………………………………………………2
1.2 Features ………………………………………………………………..… 2
1.3 Electrical Characteristics ………………………………………………. 3
2. Hardware
……………………………………………………………………… 4
2.1 Dimension …………………………………………………………………. 4
2.2 Accessories …………………………………………………………..……… 4
2.3 Description …………………………………………………………...…..… 5
3. Operation
……………………………………………………………………… 7
3.1 Getting Start …………………………………………………………………. 7
3.2 GPS Viewer for Testing ………………………..…………………………… 8
3.3 Function ……………………………………………………………………… 9
3.4 Navigation …………………………………………………………………….. 9
4. Warranty
……………………………………………………….…………… 9
Appendix: Software Specification
…………………………………….. 10
Appendix:Time Zone Table
………………………………………………… 19
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1. Introduction
1.1 Overview
The Dagama
DagamaDagama
Dagama SG-288
LCD Display Bluetooth GPS Receiver
is a total solution GPS receiver with
Bluetooth, UART interface and built-in rechargeable battery for high sensitivity to tracking signal.
The SG-288 receiver incorporates a wireless Bluetooth radio module, a high sensitivity, high
performance SiRF StarⅢchipset, and a rechargeable battery in a compact design. The SiRF
StarⅢchipset is with extremely high sensitivity for GPS signal acquisition and tracking. This
Bluetooth GPS receiver allows you to receive GPS data on mobile hand-held devices. By sending
the GPS data wirelessly, you may place this receiver on a position with best signal reception without
the constraint of annoying wires. The receiver is equipped with a portable, rechargeable, with
removable battery, just like a mobile phone. The only requirement is your corresponding hand-held
device is also with the Bluetooth connection capability. The receiver is very suitable for broad
applications such as vehicle navigation, mapping, surveying, security, agriculture, etc. Only a clear
view of sky and a battery power are necessary to the unit. With its low power consumption, the
receiver tracks up to 20 satellites at a time while offering fast time-to-first-fix, re-acquires satellite
signals less than 1 second (average) and updates position data every second.
1.2 Features
The SG-288 provides a host of features that make it easy for integration and use.
1. With SiRF StarⅢhigh sensitivity chipset.
2. High sensitivity and high performance receiver tracks up to 20 satellites.
3. High speed signal acquisition using 200,000 time/frequency search channels.
4. Built-in WAAS/EGNOS demodulator without additional hardware.
5. With the highly sensitive software to get the fast acquisition and reacquisition in the urban,
canyon and foliage environments.
6. Equipped with 1050 mAh Li-ion rechargeable battery for long operating hours.
7. Over temperature protection for the battery.
8. Compatible with Bluetooth devices with Serial Port Profile (SPP).
9. Built-in high gain antenna.
10. Three LEDs show Bluetooth, GPS, and battery status.
11. LCD Display shows time, longitude, latitude, elevation, etc.
12. Supports standard NMEA-0183 data protocol and SiRF binary code at 19200 baudrate.
13. Built-in rechargeable battery for memory and RTC backup and for fast TTFF.
14. Flash-based program memory, new software revisions upgradeable through serial interface.
15. Compact and sleek design ideal for portable applications.
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1.3 Electrical Characteristics
General Frequency L1, 1575.42 MHz
C/A code 1.023 MHz chip rate
Channels 20 channels all in view tracking
Antenna internal
Sensitivity
Tracking -159 dBm typical
AccuracyPosition < 10 meters, 2D RMS
< 7 meters 2D RMS, WAAS corrected
1-5 meters, DGPS corrected
Time 1 microsecond synchronized to GPS time
Datum Default WGS-84
Acquisition Rate (Open Sky)
Hot start 1 sec, average
Warm start 38 sec, average
Cold start 42 sec, average
Reacquisition 0.1 sec, average
Dynamic Conditions
Protocol message NMEA-0183
Default NMEA
Altitude < 18,000 meters (60,000 feet)
Velocity < 515 meters/sec (1,000 knots)
Acceleration < 4 G
Jerk 20 meters/sec max
GPS protocol GGA, GSA, GSV, RMC, 19200 baudrate, (GLL, VTG,
and ZDA optional)
8 bits data, 1 stop bit, no parity.
Bluetooth Characteristics
BT Compliant Version1.1
RF Tx Power Class 2 (4 dBm max)
Receiver sensitivity -80 dBm with BER<0.1%
Communication distance 10 meter typically
Communication profile Serial Port Profile (SPP)
Power Consumption
Main power input 5.0 ± 5% VDC input
Operation Current 65 mA average in normal mode
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Battery Source Rechargeable and removable 1050 mAh Lithium-ion
battery with 5V DC input charging circuit
Charging time Fully charged 2.5 hours typical
Operation time 15 hours after fully charged in continuous tracking mode
Environmental Characteristics
Operating temperature range -10
o
C to +60
o
C
Storage temperature range -20
o
C to +70
o
C
Charging temperature range 0
o
C to +45
o
C
Operating humidity：5% to 95%, no condensing
Dimension 83 mm (L) x 45.2 mm (W) x 20.5 mm (H)
Weight < 55 g (Battery not included)
2. Hardware
2.1 Dimension
The receiver enclosure is with the dimension: 83 mm (L) x 45.2 mm (W) x 20.5 mm (H)
2.2 Accessories
1, A Lithium-ion 1050 mAh rechargeable battery.
2, A vehicle lighter adapter assembly for battery recharge.
3, A household power adaptor assembly for battery recharge.
4, A USB cable assembly with “A” plug to mini USB plug.
5, User manual and CD.
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2.3 Description
1, Body of the Bluetooth GPS unit is as shown in the figure.
There are three LED windows on the front cover to indicate the GPS, Bluetooth and
battery status. One LCD display panel on the front cover shows time, longitude, latitude,
height, speed, battery status, and satellite signal status. Detailed LED and LCD
indications are described in next paragraph. The battery on/off switch is located on
broadside of the body. The mini USB port for charging battery is on the down side of the
body.
2, LED status
Remark: Battery charging suspended (protection when charge timer over or battery overheat)
Unplug the power plug and wait for a moment to resume charging.
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3, LCD Indication
The LCD display panel shows the following message:
4, Bluetooth/Backlight usage
(The default of Bluetooth/Backlight is ON.)
1.
Under normal operation status, press button “A” for 1 second and then release to
turn off/on Backlight.
2.
Under normal operation status, press button “B” for 1 second and then release to
turn off/on Bluetooth.
5, Setup
1. Press button “A” for 2 seconds then release to enter into setup menu.
2. Press “Select” for 1 second to increase the parameter figure.
3. Press “Next” for 1 second to select different parameters.
4. Afterfinishing setup, press “Exit” for 1 second to back to operation status.
Whenever setting up, the power of the device must be turned off then on again to
reactivate the signal.
Please refer to Appendix: Time Zone Table for time zone adjustment.
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3. Operation
3.1
Getting Start
Step 1: Battery Installation
(a) Slide the power switch to “OFF” position.
(b) Press the “PUSH” button then slide the bottom cover off.
(c) Insert the Li-ion battery into the compartment. Note the orientation of the battery.
(d) Slide the bottom cover back to locked condition.
Step 2: Charge
Please charge the battery to full capacity when first time to use. Connect the attached adaptor cord to
the mini USB jack, as shown in the following figure.
The battery indication is with dual-color LEDs. The green LED will be on until charge completes.
The LED indication for the battery status is described in the following.
Battery low ----------------------------------------------------------------- Red LED flashing
Battery in charging -------------------------------------------------------- Green LED steady on
Battery charging suspended (protection when
charge timer over or battery overheat) ----------------- Green LED flashing
Charge completes or battery in normal capacity ---------------------- both LEDs off
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Step 3: GPS acquisition
Turn the power switch “on.” The slide switch is on the broadside of the body. Once the power is
turned on, both the Bluetooth and GPS indication LEDs start to flash.
Take the Bluetooth GPS to places with clear view of the sky. The Red LEDindicates the status.
(a) LED steady on when power is connected and for the initial acquisition process;
(b) LED flashes at 1 second on and 1 second off when the receiver outputs position fix data.
Step 4: Wireless Link
Turn on the host device, a PDA or a NB with Bluetooth function. Then execute Bluetooth manager
program to perform “search” and “pair” procedures. The default PIN code is “0000” for host devices
to access this BT GPS unit (in paired mode).
The Blue LED indicates following Bluetooth radio status.
(a) LED flashes at 3 seconds interval for standby mode;
(b) LED flashes at 0.2 second interval for pairable mode;
(c) LED flashes at 1 second interval if there is an active RF link.
3.2 GPS Viewer for Testing
Install a GPS Viewer program to host device. You may check the status of the GPS receiver
whenever you like to. Following are standard buttons and operation steps.
(a) Execute the Viewer program. Press the “Com Port:” button to set “Com Port” for this data link
and the “Baudrate” to any one of 2400, 4800, 9600, 19200, 38400…
(b) Click “Start” to receive data. Usually a window shows the NMEA format data stream while
another window shows tracked satellites signal quality.
(c)
Once the link is successful, click “Stop” button to stop the program. However, you may click, for
example, the “Cold Start” button to perform “cold start” testing.
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3.3 Function
As soon as the power on, the SG-288 Bluetooth GPS receiver begins the process of satellite acquisition,
tracking, and Bluetooth radio connection. Under normal circumstances, it takes around 42 seconds
(average) to achieve a position fix at the first time. After a position fix has been calculated,
information about valid position, velocity, and time is transmitted over the output channel. The SG-
288 Bluetooth GPS receiver utilizes initial data, such as last stored position, date, time and satellite
orbital data, to achieve maximum acquisition performance. If significant inaccuracy exists in the
initial data or the orbital data is obsolete, it may take more time to achieve a navigation solution.
3.4 Navigation
After the acquisition process is complete, the SG-288 Bluetooth GPS receiver sends valid navigation
information over output channels. These data include:
1) Latitude/longitude/altitude
2) Velocity
3) Date/time
4) Error estimates
5) Satellite and receiver status
4. Warranty
The GPS smart receiver is warranted to be free from defects in material and functions for one year from
the date of purchase. Any failure of this product within this period under normal conditions will be
replaced at no charge to the customers. The repaired or replaced unit will be covered by the balance of
the time remaining on the customer's original limited warranty.
What the warranty does not cover:
1.
Any product on which the serial number label has been removed, defaced, or modified.
2.
Damage, deterioration or malfunction resulting from accident, misuse, neglect, fire, water,
lightning, or other acts of nature, unauthorized product modification, or failure to follow
instructions supplied with the product.
3. Repair or attempted to repair by anyone not authorized by Dagama
DagamaDagama
Dagama.
4. Use of supplies or parts not meeting Dagama
DagamaDagama
Dagama’s specifications.
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