Lidar-based system manages visitor flows

Lidar-based system manages visitor flows

Partners |
By Christoph Hammerschmidt

The Corona pandemic may currently make it imperative to avoid overly dense crowds. A lidar-based system can be used to implement privacy-compliant systems for managing visitor flows at trade fairs and in popular holiday areas.

Together, Blickfeld, a manufacturer of lidar sensor solutions, and, EvoCount, an expert in real-time digital visitor counting, have developed a system that allows visitor flows to be recorded and managed in accordance with current Corona regulations. The system was initially installed in the heavily tourist-frequented communities of Butjadingen and Wangerland on the North Sea coast. Cube-1 lidar systems from Blickfeld were used at the sensor side. In the meantime, similar systems with more than 100 lidar sensors are planned and partly already installed.

Such sensors are particularly well suited for this application because they detect objects and their direction of movement very reliably, largely independent of weather and light conditions, and do not allow any conclusions to be drawn about the identity of persons. The objects detected are classified using the recently released Blickfeld Percept software. The data provided by the sensors is further processed by EvoCount’s specialised crowd management software to provide an overview of the current number of visitors at any time and to limit the access to prevent overcrowding.

The combination of EvoCount’s people counting expertise and Blickfeld’s 3D lidar sensor solutions had already demonstrated its potential in several projects at the IAA Mobility 2021 trade fair in Munich: In order to make the trade fair as safe as possible for visitors in pandemic times, Blickfeld Cube-1 sensors recorded streams of visitors in the centre of Munich, where some of the trade activities took place. The movement data were analysed using Blickfeld and EvoCount software. In addition, during the event the two partner companies jointly created so-called “heat maps” of various exhibition stands based on lidar data, which show how the public traffic is distributed there in real time by means of colour gradations. In this way, the solution helps to protect people’s health during the pandemic and also to protect the sensitive environment from the consequences of too intensive tourist use.

“We see lidar sensors as the best way to record occupancy rates. Their biggest advantage is their independence from light and weather, which allows lidars to deliver results in virtually all conditions – and in a DSGVO-compliant way,” comments Tim Mertel-Blinn, CEO of EvoCount. “Combined with our analytics tools, we can very reliably gain valuable information for counting and directing visitor flows.”

Currently, the two companies are developing further application scenarios, for example to classify vehicles in car parks.

Related articles:

German lidar technology firm raises $31m

Mavenir offers AI-based Intelligence Video Analytics on 5G

CES 2022: Blickfeld shows concept for all-round vision via lidar sensor

Continental invests into lidar start-up Blickfeld

Blickfeld integrates motion detection with lidar sensor


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