תדירות: 900 MHz Power Output:
1W (1000 mW) Data Rate: עד 1 Mbps
טווח: עד 100 ק"מ (depending on
environmental conditions and antenna setup)
מִמְשָׁק: RS232/RS485: Serial communication
ports Ethernet: Optional for some models
The device described is a long-range wireless communication system operating in the 900 MHz UHF band, designed for industrial and remote applications. Here’s a structured breakdown of its features and implications:
מפרט מפתח & Analysis
- תדירות (900 MHz)
- יתרונות: Balances penetration through obstacles (buildings, foliage) with reasonable range. Part of the ISM band in many regions, enabling license-free use but prone to interference (לְמָשָׁל., from microwaves, אשר במחשב הנייד או הטאבלט).
- השתמש במקרה: Suitable for non-line-of-sight (NLoS) environments like urban areas, מפעלים, or rural settings.
- Power Output (1W / 1000 mW)
- טווח לעומת. Regulation: Enables extended range but must comply with regional ERP limits. Directional antennas may boost effective range while staying within legal bounds.
- Power Considerations: Higher consumption necessitates robust power supplies or duty cycling for battery-operated setups.
- Data Rate (עד 1 Mbps)
- Practical Throughput: Likely lower in real-world scenarios, especially at maximum range. Suitable for telemetry, sensor data, or SCADA systems, not high-bandwidth tasks.
- וויסות: May use efficient schemes (לְמָשָׁל., FSK, לורה) or error correction to maintain rates over distance.
- טווח (עד 100 ק"מ)
- Conditions: Achievable only with ideal line-of-sight (לְמָשָׁל., elevated antennas, flat terrain) and directional antennas. Earth’s curvature limits ground-based LOS to ~40 km, suggesting use of towers, repeaters, or elevated endpoints.
- Trade-offs: Data rate likely drops significantly at maximum range.
- ממשקים
- RS232/RS485: Integrates with legacy industrial equipment (חיישנים, PLCs) over short (RS232) or long (RS485) distances.
- אתרנט (אופציונאלי): Adds IP connectivity for modern networks, enabling cloud integration or remote management in select models.
יישומים
- אוטומציה תעשייתית: Remote monitoring of pipelines, equipment, or utilities.
- Agriculture: Soil/weather sensor networks across large farms.
- Environmental Monitoring: Deploying sensors in remote or rugged areas.
- Smart Infrastructure: Managing distributed assets like water tanks or solar farms.
שיקולים
- Interference Mitigation: Spread spectrum or frequency-hopping may combat 900 MHz band congestion.
- Antenna Setup: Directional antennas (Yagi, parabolic) maximize range; omnidirectional antennas suit shorter, flexible deployments.
- Regulatory Compliance: Ensure antenna gain + transmitter power adheres to local ERP regulations.
תַקצִיר
This device is optimized for reliable, low-to-moderate data transmission over long distances, bridging legacy serial systems and modern networks. Its performance hinges on environmental factors and antenna configuration, making it ideal for industrial IoT, טלמטריה, and remote sensing where wired solutions are impractical.
שאל שאלה
תודה רבה ששלחת את התשובה! ✨