Exhibition model
Radar demonstrator
for robust distance measurement
Exhibition construction for the SPS trade fair in Nuremberg
Distance measurements in harsh environments
The exhibition model demonstrates the advantages of radar-based distance measurement. Under the roughest conditions, such as rain and dust, the SYMEO sensor captures precise measurements. The measured distance is shown to visitors on a display and impressively visualized with 3D graphics.
Exhibition model for radar sensor with display - SPS trade fair Nuremberg - exhibition construction
📡 The demonstrator illustrates the advantages of radar-based distance measurement. Under the roughest conditions, such as rain and dust, the SYMEO sensor captures precise measurements. The measured distance is shown to visitors on a display and impressively visualized with 3D graphics.
https://ingenieur-glaser.de/radar-demonstrator/ – Behind the scenes
#ExhibitionModel #Exhibit #Demonstrator #TradeFair #SpsFair #ExhibitionConstruction #ExhibitionStand
🧲 Ooh, Aah, Wow! - Customer magnets for your exhibition stand.
The engineering office Glaser develops and manufactures **custom exhibition exhibits**. As eye-catchers they draw visitors' attention to your stand with a curious **“Ooh”**. The advantages of your product are made clear and tangible on the demonstration model with an astonished **“Aah”**. With a concluding **“Wow!”** you, your product and your brand remain memorable.
https://ingenieur-glaser.de/messebau/ – Exhibition exhibits
💡️ Development & Manufacturing – Engineering office Glaser
https://ingenieur-glaser.de/ – Electronics・Software・Hardware
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Operating principle of the exhibition model
The distance from the sensor to the reflector is determined by the time-of-flight of the radar beam. The reflector’s velocity is determined using the Doppler principle.
Reflector
The retroreflector moves linearly left and right in a sinusoidal motion profile. Due to its metal surfaces arranged orthogonally to each other, it reflects the radar beam back in exactly the opposite direction even when tilted.
Sensor
The radar sensor transmits electromagnetic 122.5 GHz waves toward the reflector at the speed of light. The distance determined from the time-of-flight is displayed on a monitor. The associated graph shows the reflector’s sinusoidal motion.
Visualization of the measured values
The button on the radar module of the exhibition model switches the display between two views.
Graph
The temporal progression of the measured distance is depicted on the display in a 3D graph.
Raw data
In a detailed table view all raw data including the sensor signal strength are displayed in real time.
Wireless HDMI adapter
To transfer the display content to a large monitor at the booth, a Raspberry PI connects via WLAN to the radar module and opens its web interface.
Modular exhibition model
The model’s modular design enables a freely scalable booth and space-saving transport.
Power supply
All modules are connected by IEC power extension cords. The cables and connectors are hidden beneath the modules.
Transport
The module bases are stackable. This makes transport of tables, bases and acrylic domes possible on a single Euro pallet.
Enclosure and electronics
To enable efficient production of the housings, all modules of the exhibition model were designed identically. The illustration shows the cross-section of all modules in a combined representation.
In the lower tier of the bases, high-quality power supplies, programmable speed controllers and, depending on the module, the necessary control electronics for the actuator or sensor are housed.
Technical implementation of the modules
Exhibition model "Radar"
The radar module houses an LPR®-1DHP-350 radar sensor and a 7-inch monitor. An ESP32 provides the web interface for visualization via LAN. The web server was written in C++.
For display output, a Raspberry PI 3+ loads the page in so-called kiosk mode and outputs it fullscreen via HDMI.
Additional monitors can be connected wirelessly via WLAN or wired via RJ45 socket using PoE-LAN.
Exhibition model "Solidwall"
To demonstrate the permeability of radar waves in plastics, plates of different thicknesses and materials can be attached to the turntable with magnets. Through rotation these are cyclically turned into the radar beam.
The mechanical coupling between the motor shaft and the turntable is also magnetic. Thus the turntable is removable and its torque is limited.
The turntable speed can be adjusted via a potentiometer under the base.
Exhibition model "Tornado"
Four dustproof and waterproof IP68 fans generate a swirling airflow that carries white granulate made of EPS beads into the radar beam.
To prevent the polystyrene beads from sticking to the glass due to static charge, the airflow is ionized. Two ionizers are mounted beneath the fans for this purpose. Depending on the polarity, they release positively or negatively charged ions to neutralize the statically charged EPS beads.
Exhibition model "Waterstorm"
A high-pressure pump forces distilled water through a nozzle. The water jet bursts at the lid of the acrylic dome and falls down as droplets.
Earlier experiments with a rotating nozzle were discarded due to excessive noise generation and potential susceptibility to faults.
When the acrylic dome is immersed in the water tank, a built-in solenoid valve opens to vent.
The pump output can be adjusted using a speed controller on the underside of the base.
Trade show model "Reflector"
The "Reflector" and "Solidwall" modules feature identical bases in which a powerful neodymium-iron-boron magnet rotates in a circle. The eccentric rotational movement of the magnetic field is converted into a sinusoidal translational movement by a wide magnet integrated into the linear carriage.
The linear carriage is removable. This allows the reflector to be placed in the opposite orientation as well.
Ooh, Aah, Wow! Customer magnets for your trade show booth.
The engineering firm Glaser develops and manufactures custom exhibition exhibits. As eyecatchers they draw visitors' attention to your booth with a curious “Ooh”. The advantages of your product become clear and tangible on the demonstration model with an astonished “Aah”. With a concluding “Wow!” you, your product and your brand remain memorable.
Behind the scenes
THANK YOU!
The engineering firm Glaser thanks Symeo GmbH in Munich for the exceptionally good communication, the refreshing meetings and a successful collaboration.
Addendum: Successful presentation of the SYMEO radar demonstrator at the SPS trade fair in Nuremberg
The trade show model is currently being presented at the SPS trade fair in Nuremberg, where it impressively demonstrates the advantages of radar technology to visitors. Particularly impressive is that this distance sensor works reliably even under the harshest conditions such as rain and dust.
Developing the radar demonstrator for SYMEO was an enriching experience. Despite the tight timeframe due to the upcoming trade show date, we managed to complete the trade show model on time. The key to success was the excellent communication and close contact with the SYMEO team. I am proud to have been part of such a forward-looking project and look forward to the further establishment of this innovative sensor technology in the market.
Dipl.-Ing. (FH) Daniel Evers
Head of Product
"Within a very short time a work of art was created that far exceeded our expectations of robustness and ease of use. I have never encountered such strong commitment, technical ingenuity and universal competence united in one person."
