Volleyball Pass

BUMPTRON 5000 — User Guide
📷 Webcam Required ⚡ AI Powered 🏐 Volleyball

BUMPTRON 5000 🏐

A volleyball passing assessment tool that uses your webcam to automatically analyse a player’s forearm pass technique in real time. A partner tosses on command, the player passes, and an instant slow-motion replay shows exactly which platform and body-position skills were detected.

🏐
Passing
💪
Platform
🤖
Auto-Assess
📹
Replay

How to Use

  • 💻 Open BUMPTRON 5000 on a laptop or tablet
  • 📷 Allow webcam access when prompted
  • 🟢 Wait for POSE ONLINE to appear in the header
  • 👟 Player stands in frame facing the camera
  • ▶️ Player presses READY to begin the countdown
  • 🏐 Partner tosses ball on the TOSS! cue
  • 🎬 4.5-second recording captures the pass attempt
  • 📺 50% slow-motion replay plays automatically
  • ✅ Checklist lights up for each passing skill detected

See It In Action

Watch how BUMPTRON 5000 works in a real PE setting

▶ Demo Video

What Gets Assessed

7 passing technique elements are automatically detected using pose landmarks — no teacher input needed

🦵

Knees Bent

Both knees must show an athletic bend to create a strong, balanced passing base rather than standing tall and stiff.

Knee Angle < 155°
👟

Feet Width

Ankles should be at least shoulder-width apart to give the passer a stable base and better lateral balance.

Ankle Width vs Hip Width
↗️

Forward Lean

The body should be in a forward athletic posture with hips dropped and chest leaning into the pass rather than upright.

Hip + Knee Position
💪

Elbows Locked

Both arms should be fully extended to form a clean passing platform instead of a broken or bent platform.

Elbow Angle > 155°
🤝

Arms Together

Wrists and forearms should stay close together to create one flat passing surface and reduce ball spray.

Wrist Distance
⬇️

Low Position

The hips should drop into a lower passing position at contact instead of reaching high from a tall stance.

Hip Height Threshold
⚡

Weight Forward

The platform should be out in front of the body so the passer moves through the ball instead of leaning backward.

Wrist Midpoint vs Body Center

Setup Guide

Get up and running in under 3 minutes

1

Position Your Device

Place a laptop or tablet on a chair, table, or stand at about player hip-to-chest height. The camera should capture the player from head to toe with enough space to see the passing platform clearly.

💡 Landscape orientation only
2

Wait for Pose Engine

After opening the tool and allowing camera access, wait for the ● POSE ONLINE indicator to appear in the top header. This confirms MediaPipe has loaded and is tracking landmarks correctly. The READY button unlocks automatically.

💡 First load may take 10–15 seconds
3

Player Gets in Frame

The player stands on the foot guide shown on screen, facing the camera. Their full body should be visible, including both feet and both arms forming the platform. The guide disappears once the assessment begins.

💡 Player should stand 6–8 feet from the camera
4

Press READY & Toss on Cue

Player or teacher presses READY. A 3-2-1 countdown begins with sound cues. On TOSS! the partner tosses the ball and the player performs the forearm pass. The tool records 4.5 seconds from that moment.

💡 Partner should toss from the side, not directly in front of the camera
5

Review the Instant Replay

After the recording ends, the replay automatically runs at 50% speed. The checklist panel shows which passing skills were detected. Each skill must appear for 4 consecutive frames, so a lucky moment will not earn a check by itself.

💡 Press TRY AGAIN to repeat the rep immediately

Scoring & Ratings

Score out of 7 — each check worth 1 point

7/7
🏆 Totally Radical!
Perfect passing technique across all 7 elements
5–6
⚡ Gnarly Form!
Strong passing form with minor gaps
3–4
🌀 Getting Tubular!
Developing platform and posture are showing up
0–2
💾 Keep Practicing!
Technique needs more work — use the replay to spot what to fix

💡 Teacher Tips

  • 🔄 Use it in a station rotation — one device can serve a small passing group while others do wall reps or partner passing
  • 📺 Project the replay onto a TV or monitor so students can self-coach by watching the checklist and slow motion
  • 🎯 Have students complete 3 attempts and try to improve their score from rep to rep
  • 👥 Assign one student as tosser and one as passer so both roles stay active and focused
  • ☀️ Avoid strong backlighting or sunlight behind the player — it can reduce pose accuracy
  • 🔋 Keep the device plugged in during class — webcam plus pose detection can drain battery quickly

Launch BUMPTRON 5000

Opens in a new tab — allow camera access to begin.