[Interface de communication]：RS485
[Tension de fonctionnement]：DC 5~24V
[Système de positionnement]：BDS/GPS/GLONASS/GALILEO/QZSS/SBAS
[Protocole de communication]：Modbus RTU
[Taille du produit]：103*28*28,5 mm
[Introduction]：EWD108-GN04(485) est un terminal de positionnement qui prend en charge plusieurs systèmes de positionnement (systèmes de positionnement BDS/GPS/GLONASS/GALILEO/QZSS/SBAS).La coque adopte un revêtement à trois niveaux : antifongique, anti-humidité et anti-sel. Le dispositif de module de positionnement par satellite GNSS multimode génère des informations de positionnement via le protocole Modbus RTU, prend en charge la sortie de chaînes RMC-ASCII conformes au protocole NMEA0183 et des registres séparés pour le stockage (longitude, direction de longitude, latitude, direction de latitude, etc.), et le débit en bauds du port série peut atteindre jusqu'à 115 200 bps, qui peuvent être transmis via le protocole Modbus RTU.
Magasin officiel| Serial number | Project | Specification |
| 1 | Power supply voltage | 5V~24V DC |
| 2 | Communication interface | RS485 |
| 3 | Baud rate range | 1200-115200bps |
| 4 | Communication protocol | Modbus RTU |
| 5 | Supported positioning system | BDS/GPS/GLONASS/GALILEO/QZSS/SBAS |
| 6 | Working frequency band | GPS/QZSS: L1 C/A, L1C, L2C, L5, L6 BDS: B1C, B1I, B2A, B2I, B3I GLONASS: L1, L2 Galileo: E1, E5, E6 SBAS: WAAS, EGNOS, MSAS, Gagan, SDCM |
| 7 | Positioning refresh rate | 1Hz~10Hz |
| 8 | User Configuration | Modbus RTU to modify the register, restart takes effect |
| 9 | Antenna interface | SMA (Official Threaded Inner Hole) |
| 10 | Hardware interface | 4Pin 3.81mm Phoenix Terminal |
| 11 | Size | 103×28×28.5mm（L×W×H） |
| 12 | Average weight | 32±5g |
| 13 | Operating temperature | -40 ℃~ +85℃, industrial grade |
| 14 | Working humidity | 10% ~ 90%, relative humidity, no condensation |
| Category | Indicators | Typical values | Unit |
| Positioning time (Test condition 1) | Cold start | 27.5 | S |
| Hot start | ＜1 | S | |
| Recapture | ＜1 | S | |
| Sensitivity (Test condition 2) | Cold start | -148 | dBm |
| Hot start | -162 | dBm | |
| Recapture | -164 | dBm | |
| track | -166 | dBm | |
| Accuracy (Test condition 3) | Horizontal positioning accuracy | 1 | m |
| Speed positioning accuracy | 0.1 | m/s | |
| Timing accuracy | 30 | ns | |
| Power consumption (Test condition 4) | Capture current | 30 | and |
| Tracking current | 20 | and | |
| Operating temperature | - | -40℃-85℃ | - |
| Storage temperature | - | -55℃-100℃ | - |
| humidity | - | 5%-95%RH (no condensation) | - |
【Note】: The above results are GPS/Beidou dual-mode working mode
[Testing Condition 1]: The number of received satellites is greater than 6, the signal intensity of all satellites is -130dBm, the average value is taken after 10 tests, and the positioning error is less than 10 meters.
[Test Condition 2]: The external LNA noise figure is 0.8, the number of received satellites is greater than 6, and the received signal strength value under locked or locked conditions is locked within five minutes.
[Test Condition 3]: Open and unobstructed environment, boot up for 24 consecutive hours, 50%CEP.
[Test Condition 4]: The number of received satellites is greater than 6, and the signal strength of all satellites is -130dBm.