Expand and enrich external interfaces, with mult i-camera image monitoring, TTS voice broadcast, automatic bus stop reporting, driving recorder (b lack box), LED bar screen advertising, electronic seal, temperature detection, fuel consumption det ection, load detection, passenger flow statistics , Operation data upload and other functions.
| Name | Description |
| Server Port | 5451 |
| 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 |
