Methods for monitoring density and / or movement of people

By integrating sensors into lighting grid fixtures, the method provides a cost-effective, non-invasive solution for monitoring personnel density and movement, addressing privacy concerns and reducing maintenance costs through shared components and isolated data transmission.

CN115151870BActive Publication Date: 2025-03-28TRIDONIC GMBH & CO KG
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Patent Information

Application Number
CN202180016239.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2020-03-11
Filing Date
2021-03-11
Publication Date
2025-03-28
Estimated Expiration
2041-03-11

AI Technical Summary

Technical Problem

Existing methods for monitoring personnel density and movement in environments, such as buildings, are invasive, costly, and inefficient due to the need for multiple sensors and high maintenance of imaging systems, which are not widely accepted for privacy concerns.

Method used

Integrating voice and motion sensors into lighting grid fixtures, allowing for non-invasive monitoring by generating time sequences of sensor values to estimate density and movement, with data transmitted via a wireless interface to a central database for analysis, while sharing components like shells, communication devices, and power to reduce costs.

Benefits of technology

Enables effective, non-invasive monitoring of personnel density and movement with reduced costs by synchronously collecting data from multiple locations within the environment, maintaining privacy by only transmitting isolated sensor values, and providing accurate estimates of density changes over time.

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Abstract

The present invention relates to a method (20) for monitoring the density and movement of people using a grid (100) of multiple lighting devices (101a-101d), each of the lighting devices (101a-101d) comprising an acoustic sensor (105), a motion sensor (107) (preferably a Doppler sensor), a controller (109) provided with output signals of the sensors (105, 107), and a wireless interface (111) for communicating between the controller (109) and a gateway (401), the gateway being used to forward a sensor information signal (130) to a central database (403), wherein based on the information in the database (403), the density and / or movement of people in the area covered by the grid (100) is estimated by generating a time series of sensor values ​​of each lighting device (101a-101d), the sensor values ​​being such as sound pressure, movement speed and / or movement intensity.
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