发现牵心pro，这款先进的云摄像头支持人工智能和超高清。体验智能监控的未来，拥有清晰如水晶般的画质和智能功能，以适应您的需求。
通过我们的简单设置过程快速添加摄像头，立即开始录制并在云端查看视频。
牵心云
更安全的家，更轻松的生活
智能警报牵心云将为您提供有针对性的警报，过滤掉噪音，只通知您涉及人、车、动物的重要事件。
安全云视频存储随时随地即时访问您的警报视频。
智能时间轴播放无缝地以高清分辨率查看记录的视频，并滚动事件时间轴。
acarsdeco2 ... --http-port 8080 & curl -X POST --data-binary @- http://acarshub.local:8080/acars < acars.json Create /etc/systemd/system/acarsdeco2.service to auto-start on boot. Troubleshooting | Problem | Likely Fix | |---------|-------------| | No messages | Check antenna placement. Try 131.550 MHz first (busiest channel). | | High error rate | Reduce gain: --gain 30 . Ensure no FM broadcast overload. | | Device not found | Run rtl_test -t . Add user to plugdev group. | | Only one channel active | Verify --freq-list format. Use comma separation, no spaces. | Final Thoughts acarsdeco2 is an excellent choice for anyone wanting to explore VHF ACARS without managing multiple decoder instances. It’s stable, efficient, and works perfectly on a Raspberry Pi 3 or 4. While it doesn’t support VDL2 (use dumpvdl2 for that), it remains the go‑to tool for legacy ACARS decoding.
acarsdeco2 --device 0 --freq-list 131.550e6 --json --http-port 8080 Then point a browser to http://localhost:8080/data for live JSON. A typical decoded message looks like this:
acarsdeco2 --device 0 --freq-list 131.125e6,131.475e6,131.550e6,131.725e6,131.850e6 To feed decoded messages into a web dashboard or logging system: acarsdeco2
acarsdeco2 --device 0 --freq 131.550e6 This decodes only one frequency. To take advantage of multi-channel decoding:
docker run --rm -it --device /dev/bus/usb --pull always ghcr.io/sdr-enthusiasts/docker-acarsdec:acarsdeco2 Here’s a minimal command to start decoding: Try 131
[2025-03-15 14:23:10] 131.550MHz: ACARS mode: 2 Reg: B-1234 Flight: CA1234 Message: .CA1234 001A YYZ ZBAA OOOI OUT 1423 You can also log raw text to a file:
acarsdeco2 --device 0 --freq-list 131.550e6 --output-file acars.log | Feature | acarsdeco2 | acarsdec | dumpvdl2 | |---------|------------|----------|----------| | Target | VHF ACARS | VHF ACARS | VDL Mode 2 (VHF) | | Multi-channel | Yes (up to 8) | No (run multiple instances) | Yes | | RTL-SDR | Native | Native | Native | | JSON output | Yes | Yes (with patch) | Yes | | Bit error correction | Good | Basic | Excellent | | VDL2 support | No | No | Yes | Note: dumpvdl2 decodes the newer VDL Mode 2 protocol (used alongside ACARS), while acarsdeco2 focuses on legacy ACARS. Advanced Tips 1. Reduce CPU usage acarsdeco2 --device 0 --freq-list ... --sample-rate 1.2e6 --corr-threshold 100 2. Forward to an aggregator Many users send data to ACARS Hub or ADS-B Exchange : | | Device not found | Run rtl_test -t
This article explains what acarsdeco2 is, how it differs from other decoders, and how to set it up to turn your $20 RTL-SDR dongle into a real-time aircraft messaging receiver. acarsdeco2 is a lightweight, multi-channel ACARS decoder written in C. It is specifically designed to work with RTL-SDR devices (using the rtl-sdr library) and can decode multiple ACARS frequencies simultaneously within the bandwidth of your SDR.
If you’ve ever wanted to listen in on the digital conversations between airliners and ground stations, you’ve likely encountered the term ACARS . While many enthusiasts start with the well-known dumpvdl2 or acarsdec , a powerful and efficient alternative exists: acarsdeco2 .