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How to Make Real-Time Synchronization among 4 ARMs become POSSIBLE
Controlling QUADWHEEL's Independent Rolling Wheel(s)

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MAKING LYNX M20 LOOK A LIKE

Konsep dalam Pemahaman saya Pribadi:
4 Roda tetap selalu (diusahakan) berjarak sama dr Pusat Main Control secara Bird View/Tampak Atas

Tapi ketika CLIMBING .. sebagai ilustrasi!
Ada 1 Roda yg Lebih Banyak terjadi Putaran karena melakukan Rotasi utk Climbing
3 Roda lain berhenti atau kecepatan tetap konstan dan terus berputar
Sementara 1 Roda yg melakukan Climbing terus bergerak atau penambahan kecepatan dr kecepatan konstan dan berputar lebih banyak
Dengan tujuan menjaga 4 Roda terus terjaga berjarak sama dr Pusat Main Control secara Bird View/Tampak Atas

CONTOH (dalam data)
Pada perjalanan menempuh 1 meter dalam 20 detik. Roda Kanan Depan melakukan "Penanjakan Gundukan Tanah" sementara Roda lain tetap melaju pada jalan rata/tanpa gundukan
Jarak Tempuh Roda:
Roda Kiri Depan tetap 100 cm
Roda Kanan Depan "yg melewati gundukan tanah" menjadi bertambah 10 cm sehingga Total 110cm
Roda Kiri Belakang tetap 100 cm
Roda Kanan Belakang tetap 100 cm
"perbedaan jarak tempuh tiap roda terjadi 
..pada saat dimaintain SELALU berjarak sama dr Pusat Main Control ke 4 (empat) Roda tersebut secara Bird View"



📡 Radio-Based Distance Measuring Technologies (Not Laser)

If you are looking for a distance measuring tool that uses radio signals (RF) instead of laser, here are the main technologies available:

1️⃣ Ultra-Wideband (UWB)

How it works:

  • Device A sends a radio pulse
  • Device B responds
  • Distance is calculated using Time of Flight (ToF)
  • Accuracy: ±10–30 cm

Common Uses:

  • Indoor positioning
  • Robotics
  • Asset tracking
  • Smart tags

Examples:

  • Apple AirTag (UWB precision finding)
  • Samsung SmartTag+
  • Industrial UWB RTLS systems

Best for: Precise indoor object-to-object distance measurement.

2️⃣ RFID Distance Estimation

Types:

  • Passive RFID (short range)
  • Active RFID (longer range)

Distance is estimated using signal strength (RSSI).

Accuracy: Moderate (less accurate than UWB).

Best for: Warehouse and asset tracking.

3️⃣ GPS (Satellite Radio Signal)

  • Uses satellite radio signals
  • Works best outdoors
  • Range: meters to kilometers
  • Accuracy: ~3–10 meters (consumer devices)

Best for: Outdoor rolling or travel distance measurement.

4️⃣ Bluetooth (BLE) Distance Measurement

  • Uses signal strength (RSSI)
  • Bluetooth 5.1+ supports direction finding

Accuracy: Medium to low.

Best for: Proximity detection and indoor tracking.

📊 Comparison Table

Technology Signal Type Accuracy Indoor Use Best Application
UWB Radio Pulse High Yes Precise object tracking
RFID Radio Medium Yes Asset tracking
Bluetooth Radio Medium-Low Yes Proximity detection
GPS Satellite Radio Low-Medium No (Indoor) Outdoor distance

🎯 For Rolling Distance Tracking

If you want to measure distance traveled by a rolling object using radio:

  • Attach a UWB tag to the object and use a fixed anchor
  • Use GPS for outdoor long-distance tracking

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