Know how your building is really used.
PLExyz Crowd shows how many people are in each space, live, how they move and how long they stay. It senses primarily with Wi-Fi, which counts devices, not faces, and depending on the use case extends to LiDAR, cameras and RFID. It began in 2021 as PLExyz’s Wi-Fi based sensing and is a closed pilot, part of PLExyz, the AntaraX sub-brand that grew from REKA research.
“How many people are actually in this building right now, and do we need all this space?”
- Leases are signed on headcount and assumption.
- Meeting rooms sit booked but empty, and whole floors run for a handful of people.
- Badge counters only see the door, never what happens inside.
- Cameras could count, but they record faces, and that brings a privacy review of its own.
How PLExyz Crowd works
Wi-Fi first: counts, not faces.
Signals already in the space
Each PLExyz unit picks up the Wi-Fi-enabled devices people already carry, within about 50 metres. One unit was enough for a café in Seremban.
Counts devices, not faces
Wi-Fi sensing counts presence and never identifies who is present. It uses no camera, so it leaves no footage to leak or mishandle. Cameras join only where a project calls for them.
Works through walls
Wi-Fi sensing works through walls, so one unit covers more than one room. It needs no line of sight and no light, which suits rooms where a camera has no place, such as prayer rooms and rest areas.
More than Wi-Fi
Depending on the use case, LiDAR, cameras and RFID extend the Wi-Fi sensing, on their own or together. All three are live, deployed on a project basis. PLExyz’s spatial technology
ReadoutHover or tap a step to read what it does.
See a camera and PLExyz Crowd’s Wi-Fi sensing count the same room, side by side, on the PLExyz page.
What PLExyz Crowd measures
On a web dashboard, with real-time alerts when something needs a person.
Footfall
How many people come into a space, and when the peaks hit.
Movement patterns
Where people go within a site, and which areas stay quiet.
Visitor journey
The path visitors take through a location, from one area to the next.
Repeat visits
How many visitors come back, and how often.
Time spent
How long people stay in each space.
Conversion
The share of visitors who go on to take an action you care about.
The PLExyz unit, and tags
The sensing sits in a small unit that mounts on a wall. The design sketches show its light ring, a modem module and battery, power, USB and LAN ports, and a push-and-slide wall mount. They are concept drawings, not photographs of a deployment.
For people and assets that need to be located, PLExyz uses Wi-Fi tags:
- Power
- 5 V, charged over USB-C
- Battery
- About 1 hour of charge for about 6 months of operation
- Size
- 50 × 50 × 16 mm
Who PLExyz Crowd is for
Anyone who pays for space and wants to know how it is used.
- Offices and propertyFloors, meeting rooms and leases, planned from how the space is really used.Property & facilities
- Cafés, venues and eventsBrewhäus in Seremban saw how many came to its art events, and how long they stayed.Read the story
- Screens and advertisingMedAds Media measured viewers, dwell times and peaks for its screen ads in Kuala Lumpur clinics.Read the story
- Work sites and operationsWi-Fi tags on workers and assets, for workflow, equipment use and safe movement.Sensing & Data
- Cities and the public sectorCrowd analytics across Malaysia, Thailand and Vietnam. The sensing work was recognised by Frost & Sullivan for Best Crowd Analytics in 2022.Government & public sector
Running events? For event organisers, AntaraX works with Mole to provide event technology, at sense.mole.is.
A closed pilot, run as part of Managed AI
PLExyz Crowd is open to a small number of sites. Tell the team about your building and they reply to say whether a pilot fits. Each pilot runs as part of REKA’s Managed AI service, so you get the outcome without building an AI team.
- Set up with you, on your site and your data, sized to the pilot.
- Your team uses it day to day, with a direct line to the people building it.
- REKA keeps it running and reliable while you focus on the work.
- What you learn shapes the product before it opens to everyone.
PLExyz Crowd, from AntaraX
PLExyz Crowd is part of PLExyz, an AntaraX sub-brand that grew from proven REKA research.
REKA explores, researches and engineers; AntaraX productises, deploys and scales what proves repeatable. The pilot itself is requested at antarax.ai.