Hardware features |
|
Hardware architecture |
Using dual-core central processing chip |
Communication module |
GPRS, SMS dual channel module |
Reliability design |
Power supply 4 levels of protection, 4 levels of watchdog |
Circuit board protection |
Three-proof paint spray protection |
Technical specifications |
|
Operating Voltage |
9~33 V/DC |
Limit voltage |
100V/DC |
Battery protection voltage |
Low end: 9V (12V battery) or 20V (24V battery) High end: 36V |
Anti-reverse voltage of power supply |
≥100V |
Average working current |
70mA DC 12V |
Power saving mode |
<20mA DC 12V |
spare battery |
Work 3 hours |
Dimensions |
88x 62.5 x 32.5 mm (L x W x H) |
Housing material |
Aluminum alloy |
Host weight |
0.26kg |
interface |
|
GPS antenna |
SMA interface: -26dB cable length 5m |
GSM antenna |
SMA interface: -3dB cable length 3m |
Vehicle detection interface |
9 signal inputs |
AD detection interface |
2 AD signal inputs (enhanced 2, 3, 4 type) |
Video interface |
Serial camera input, expandable 4 cameras |
Voice interface |
2 way voice interface |
Data interface |
2 RS-232 serial ports |
Environmental characteristics |
|
Automotive EDM interference immunity |
Discharge voltage is 10 kV ~ 20 kV, discharge frequency is 20 times / s ~ 200 times / s |
Electrical fast transient burst immunity |
4KV, experimental level Ⅳ |
ESD immunity |
Contact discharge 6KV, air discharge 8KV, experiment level Ⅲ |
Conducted disturbance limit |
Meets Class B requirements |
Radiation disturbance limit |
Meets Class B requirements |
Temperature characteristics |
Working temperature -20 ℃ ~ +60 ℃ |
humidity |
Limit temperature -35 ℃ ~ -20 ℃, + 60 ℃ ~ + 70 ℃ |
GPS performance |
|
Tracking sensitivity |
-159dBm |
Positioning time |
Cold start is less than 34 seconds; hot start is less than 3.5 seconds; warm start is less than 33 seconds, and recapture time is 1.0 second |
positioning accuracy |
10 meters 2D RMS |
Speed accuracy |
0.1 m / s |
Base station positioning accuracy |
100 metres |
GSM / GPRS performance |
|
frequency |
EGSM900/GSM1800 |
Transmit power |
EGSM900:CLASS4(2W),GSM1800:CLASS1(1W) |
GPRS |
GPRS multi-slot class8GPRS multi-slot class 10
GPRS mobile station classB
Downlink speed: up to 85.6KbpsUplink speed: up to 42.8Kbps |
data storage |
|
Track record storage |
50,000 track record storage |
Dead zone make-up cache |
Cache 500 (point) positioning information |
Road detection storage |
8 road data can be set, each road can be composed of 1023 polyline segments and 256 stations |
Attribute area storage |
Can set 108 rectangular areas (of which 20 polygon areas can be set) |
Image storage |
More than 200 pictures stored locally |