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The intelligent on-board unit OBU is mainly installed inside the car to accomplish functions such as vehicle-to-road communication, and driving blind spot warning and over-the-horizon information reception. Intervene in vehicle driving behavior, realize the coordinated management and control of the regional road network, provide vehicle-road coordination support for automatic driving, and support for interactive intelligent transportation, driving safety and automatic driving applications.
| Mechanical | Size | 240mm×151.5mm×30mm（without antenna） |
| Properties | short-range communication antenna：300mm*φ20mm | |
| 4GAntenna size：200mm*φ19mm | ||
| Material | Galvanized sheet | |
| Enclosure Rating | IP53 | |
| Electrical Properties | Power Supply | DC12V |
| Power | ≤10W | |
| Communication Properties | Frequency | C-V2X TDD B47；5.905GHz~5.925GHz |
| Delay | average＜50ms | |
| Distance | ≥600meters； | |
| Low noise and unobstructed environment：＞700 meters | ||
| Bandwidth | 10M | |
| GNSS | Satellite | Beidou、Galileo、GLONASS、GPS |
| Properties | Start Time | smaller than 30S |
| Positioning Accuracy | 1.5m CEP 50% RTK 0.01m+1ppm CEP 50% | |
| Refresh Rate | ≤20Hz | |
| Function Parameter | Supporting the Application Layer and Application Data Interaction Standard of the Vehicle Communication System of the Cooperative Intelligent Transportation System (T/CSAE 53-2020)（T/CSAE 157-2020） | |
| C-V2X Properties | Support T/CSAE 53-2020、T/CSAE 157-2020 | |
| Environmental Properties | -40℃ ~ +70℃（A class） | |
| Humidity：10% ～ 95% | ||
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