ENGPed4Bim - People Flow and Occupancy Simulation for BIM
Ped4Bim is a people flow and evacuation software which works closely together with BIM tools (Building Information Modeling) like Autodesk® Revit® or Allplan®. Ped4Bim can directly import different CAD/GIS/BIM formats like DXF, DWG, SVG, HPGL and CGM. Files in IFC format (Industry Foundation Classes) are converted into 2D layouts in advance via a web service. The simulation results are then read back into the BIM model in the form of density or load plots and displayed. Within the BIM workflow Ped4Bim can be used in different planning and construction phases as well as in later operation and maintenance phases.
Autodesk® Revit® Add-In for Floorplan Export to Ped4Bim
This Autodesk® Revit® Add-in (DLL) is written in C# and is based on the .NET API of Revit®. It allows the export of individual floors from the 3D BIM model (Building Information Modeling) and saves them as a 2D floor plan in an XML file. This file can be imported by Ped4Bim and used as a layout for person simulation.
Sensor Data Acquisition and Motor Control via Bluetooth
This project, realized with an Arduino Nano BLE, serves the wireless, multi-channel acquisition, management and analysis of sensor data. The output voltage of the angle sensors used in this case, are fed to the ADC inputs of the Arduino after signal processing, where they are averaged (low-pass) and sent at regular intervals via a Bluetooth module from uBlox to a computer. There the data can be received, saved and displayed both numerically and graphically. Stored data can be reloaded, shown and analyzed in more detail. The cleaned data is also used for the Trinamic Motion Control, which is later used to control the stepper motors.
RFID Key Management System
The system consists of a compact RFID read/write module (UHF 868 MHz EU) and a platform independent communication software. The RFID unit is connected via USB to a computer, from which it is powered and controlled. This allows EPC Gen2 transponders (tags) to be read or written directly on a PC, Mac, laptop or tablet. The reader can acquire up to 255 tags 'simultaneously' (1..3 s) in bulk mode. The reading range is adjustable and is between 10 and 100 cm, depending on the transponder type. A tag is uniquely identified via the RFID chip integrated in the ID card, key or fob. In this way, all key movements are automatically documented and can be traced at any time. The communication software facilitates quick and easy connection and testing of the RFID system and can be easily integrated into your own applications without having to deal with the internal communication protocol in detail.