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| Functional Category | Function Description |
|---|---|
| GNSS positioning | Real-time positioning, supports GPS+Beidou, supports AGPS. The device uses GPS by default. If unsuccessful, it reports base station data. |
| Real-time positioning | Continuous positioning mode triggered by vibration. Supports inflection point and blind zone supplementation. |
| Platform access | TCP |
| Location reporting | Data reporting and query: static 30s/time, dynamic 10s/time, backup power 30min/time. |
| Data reporting | Protection board and host parameter upload: static 30s/time, dynamic 5s/time. |
| CAN communication | Upload vehicle CAN messages, host messages, and fault messages. Read and transmit real-time data to the server. |
| Device upgrade | SMS upgrade / Offline upgrade / FOTA upgrade |
| Bluetooth & SMS | Host parameter query, modification, firmware download, and parameter configuration. |
| Terminal Activation | Activation binding/unbinding process via Bluetooth or Platform. |
| Remote Command | Platform issues control, information query, upgrade commands, and parameter configurations. |
| Low Power Management | Turns off CAN bus/GPS/LED when no main power or vibration is detected. GSM stays on standby. |
| Terminal Self-Alarm | Triggers alarms for vibration, main power low voltage (<11.5V), backup power low voltage (<3.2V), or communication failure. |