S8 Scenario Deployment
Scope: By usage scenario — what to prioritize in coverage, deployment cautions, and expected results, vs generic placement (S3).
Not here: Universal environment rules → S6; space layout & unit count → S7; troubleshooting → S10.
Confirm with S3 and S7 before wall mount.
8.1 Fall monitoring
Scenario: Detect falls and raise alerts. For this scenario, accurate deployment matters most — correct radar position and room layout beat post-install tuning.
| Aspect | Guidance |
|---|---|
| Radar position | Tilt 2.5 m / 30°, secure wall mount, no roll/skew; bedrooms → foot-of-bed side wall (S3.3); not above headboard, hand-held, or on a desk (S3.5) |
| Coverage priority | Floor where falls may occur (around bed, walkways, bathroom approach) must lie in the S2.4 blue zone; beam should cover activity floor, not just walls or furniture backs |
| Room layout | Use S7 for the space: furniture blocking the beam, paths inside blue zone; large or multi-zone rooms need unit count and merge planning — avoid “mounted but key floor outside blue” |
| Deploy check | Before fixing the plate, walk the floor: with 30° down-tilt, does main coverage hit the areas you care about? Strong reflectors (windows, mirrors, TV opposite wall) → change wall or aim — S3.4, S6.2 |
| Expectations | 10-second alert silence (anti-repeat); sit/kneel/fake fall / quick stand-up may not alert — S6.4, Q4 |
8.2 Long-term bed rest / in-bed activity
Scenario: Continuous observation of in-bed posture and activity (turning, sitting up). Focus: clear view of the bed, minimal occlusion, metal bed frames managed.
Not the same as “bed-exit alert”
This section is in-bed activity & posture, not a dedicated bed-exit workflow. Bed-exit is a platform feature; if enabled, keep the path from bed to door/bath in the blue zone — mount still follows S7.2 A.
| Aspect | Guidance |
|---|---|
| Coverage priority | Bed surface in blue zone; foot-of-bed side wall usually better than above headboard |
| Occlusion | Do not let rails, heavy curtains, high headboards, or piled bedding block the bed path; keep curtains open or use lighter fabric — S6.3 |
| Bed material & stability | Metal frames / stainless headboards cause strong near-field reflection and track jitter or false alerts; avoid beaming straight at metal headboard/frame; bed must be stable — slight wobble can look like motion |
| Exclusion zones | Fixed beds or cabinets that cannot move → set exclusion zones on the platform to reduce metal-bed / fixed-furniture interference (not a substitute for correct wall, height, and aim — S7.1) |
| Expectations | Long stillness → target may briefly disappear (normal) — S6.4, Q3 |
8.3 Multiple occupants
Scenario: Track count, position, and motion for several people. Multi-person monitoring works, but initial track establishment and spacing matter.
| Aspect | Guidance |
|---|---|
| Coverage priority | All monitored activity areas in blue zone; mount per S7 |
| Initial tracking | After first enable or calibration, keep some distance between people (about ≥ 1 m helps) so the system can build separate tracks; too close → confused count/position — Q2 |
| Stillness & drop-out | Fully still or almost no motion → brief track loss or target disappears on UI (not offline) — S6.4, Q3 |
| Environment | Strong reflectors affect count and tracks — S6.2 |
| Expectations | Up to about 6 simultaneous targets — S6.4 |
8.4 Pets in the home
Scenario: Focus on people; understand how pets affect recognition.
| Aspect | Guidance |
|---|---|
| Coverage priority | Prioritize human activity zones; avoid low beam on pet floor areas |
| Size | Large pets (e.g. big dogs) in zone may be classified as people or add extra tracks, affecting count and alerts |
| Motion | Small pets usually less impact; charging / sprinting through the zone can cause track jumps or short false alerts — Q5 |
| Environment | Move metal cages / mirrors out of zone; exclusion zones for fixed pet corners if needed — S6.2 |
8.5 Moving objects (all scenarios)
Applies across scenarios. If tracks multiply, count jumps, or false alerts appear, check moving objects in the room:
| Type | Effect | Guidance |
|---|---|---|
| Fans / ceiling fans / AC outlets | Vibration or airflow raises noise, jitter | Mount away from running fans, ceiling fan lights, AC — S6.2 |
| Curtains (heavy or wind-swaying) | Blockage or periodic motion → lost target or ghost motion | Fix or lighten curtains at bed/walkways; keep fabric out of main zone |
| Other movers | Swinging doors, shiny décor, robots, etc. | Move out of blue zone or re-aim radar |
Mechanisms → S6.2; symptoms → S10.
8.6 Scenario quick reference
| Scenario | Deploy focus | Main expectations (S6.4) |
|---|---|---|
| Fall | Accurate mount, floor in blue, layout per S7 | 10 s silence; sit/kneel/fake fall may not alert |
| Bed rest | Minimal occlusion; metal bed + exclusion zones | Long stillness → brief disappear |
| Multi-person | Full blue coverage; spacing at first use | ~6 max; close/still → drop-out |
| Pets | Human zones first; large pet may count as person | Small pet sprint → short interference |
| Moving objects | Fans, swaying curtains | Tracks/count/alerts — §8.5, S6.2 |
Multi-radar / large-space layout → S7.2 D, not this chapter.