Understanding Haptic Feedback from the SoterCoach Device
Purpose:
The SoterCoach device uses haptic feedback — beeps and vibrations — to coach workers in real-time when hazardous movements are detected. This guide explains what the feedback means and when it is triggered.
🔊 What Is Haptic Feedback?
Haptic feedback is a gentle vibration and beep delivered by the device to alert the wearer that a potentially unsafe movement has occurred. The goal is to build awareness and promote safer movement habits over time.
📍 When Does Feedback Occur?
Feedback is triggered after the movement is completed — when the worker returns to a neutral position. This avoids distraction mid-task and reinforces safer behavior for the next movement.
🧍 Spine Program Feedback
| Movement Type | Trigger Condition | Feedback |
|---|---|---|
| Poor bending | Forward bend >90° | 1 short beep & vibration |
| Twisting while bending | Twist >30° + bend >50° | 3 short beeps & vibration |
| Intense bending | Jerky, non-smooth bend | 3 long beeps & vibration |
📌 Note: Awkward static posture and repetitive movements are analyzed in the dashboard but do not trigger real-time feedback.
💪 Shoulder Program Feedback
| Movement Type | Trigger Condition | Feedback |
|---|---|---|
| Arm elevation | Arm raised >90° | 1 short beep & vibration |
| Unsafe pushing/pulling | Jerky motion with open shoulder | 3 short beeps & vibration |
| Overexertion | Arm elevated >90° for >20% of shift time | 3 long beeps & vibration |
📌 Note: Static elevation and repetitive movements are dashboard only — no beeps or vibration.
🔇 No Feedback on Day 1
The first day of any program is a baseline day. No haptic feedback is given to allow for natural movement tracking and baseline comparison.
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