Exhibition model
Radar demonstrator
for robust distance measurement
Exhibition stand for the SPS trade fair in Nuremberg
Distance measurements in harsh environments
The exhibition model illustrates the advantages of radar-based distance measurement. Under the roughest conditions, such as rain and dust, the SYMEO sensor records precise measurements. The measured distance is displayed to fair visitors on a screen and impressively visualized using 3D graphics.
Exhibition model for radar sensor with display - SPS trade fair Nuremberg - exhibition stand
📡 The demonstrator illustrates the benefits of radar-based distance measurement. Under the harshest conditions, such as rain and dust, the SYMEO sensor records precise measurements. The measured distance is shown to fair visitors on a display and impressively visualized using 3D graphics.
https://ingenieur-glaser.de/radar-demonstrator/ – Behind the scenes
#trade-show-model #exhibit #demonstrator #trade-show #SpsTradeShow #exhibition-construction #trade-show-booth
🧲 Ooh, Aah, Wow! - Customer magnets for your 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 stay in people's minds.
https://ingenieur-glaser.de/messebau/ – Exhibition exhibits
💡️ Development & Manufacturing – Engineering firm Glaser
https://ingenieur-glaser.de/ – Electronics・Software・Hardware
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#trade-show-model #exhibit #demonstrator #trade-show #SpsTradeShow #exhibition-construction #trade-show-booth
Operating principle of the trade-show model
The distance from the sensor to the reflector is determined by the time-of-flight of the radar beam. The reflector's speed is determined using the Doppler principle.
Reflector
The retroreflector moves linearly left and right in a sinusoidal motion profile. Due to the 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 via time-of-flight is displayed on a screen. The associated graph shows the reflector's sinusoidal movement.
Visualization of the measured values
The button on the radar module of the trade-show model switches the display between two views.
Graph
The temporal course of the measured distance is displayed on the screen in a 3D graph.
Raw data
In a detailed table view, all raw data including the sensor's 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 Wi‑Fi to the radar module and opens its web interface.
Modular trade-show model
The modular design of the model enables a freely scalable trade show booth and space-saving transport.
Power supply
All modules are connected using IEC appliance extension cords. The cables and connectors are hidden beneath the modules.
Transport
The module bases are stackable. This allows transport of tables, bases and acrylic hoods on a single euro pallet.
Enclosures and electronics
To enable efficient manufacturing of the enclosures, all modules of the exhibition model were constructed identically. The illustration shows the cross-section of all modules in a combined representation.
High-quality power supplies, programmable speed controllers and, depending on the module, the necessary control electronics for the actuator or sensor are housed in the lower compartment of the base.
Technical implementation of the modules
Exhibition model "Radar"
The radar module contains 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 Wi‑Fi or wired via an 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. The rotation cycles them through the radar beam.
The mechanical coupling between the motor shaft and the plate is also magnetic. This makes the turntable removable and limits its torque.
The turntable speed can be adjusted via a potentiometer under the base.
Exhibition model "Tornado"
Four dustproof and waterproof IP68 fans create 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. For this purpose two ionizers are mounted beneath the fans. Depending on the polarity of the charge, they release positively or negatively charged ions to discharge the statically charged EPS beads.
Exhibition model "Waterstorm"
A high-pressure pump forces distilled water through a nozzle. The water jet breaks apart on the lid of the acrylic glass hood 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 glass hood is immersed in the water basin, a built-in solenoid valve opens for venting.
The pump power can be adjusted using a speed controller on the underside of the base.
Exhibition 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 Glaser engineering office develops and manufactures custom trade show exhibits. As eye-catchers they draw visitors' attention to your booth with a curious “Ooh”. The benefits of your product become clear and tangible on the demonstration model with an astonished “Aah”. With a final “Wow!” you, your product and your brand remain in their minds.
Behind the scenes
THANK YOU!
The engineering office Glaser thanks Symeo GmbH in Munich for the extraordinarily 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 fair model is currently being presented at the SPS trade show in Nuremberg, where it impressively demonstrates the advantages of radar technology to visitors. Particularly impressive is that this distance sensor reliably operates even under the harshest conditions such as rain and dust.
Developing the radar demonstrator for SYMEO was an enriching experience. Despite the tight schedule due to the upcoming trade show, we managed to complete the exhibition model in 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 masterpiece was created that far exceeded our expectations of robustness and user-friendliness. I have never encountered such strong commitment, technical ingenuity and universal competence combined in one person."
