MADASS Operating Manual & Installation Guide
The MADASS, Monitoring And Data Acquisition Storage System, is a vehicular data recording device designed to record relevant vehicle operating parameters before and after the occurrence of an incident, defined as an event where lateral or axial acceleration has exceeded pre-defined G force limits.
Lateral and axial acceleration are monitored continuously until an incident occurs. Once an incident occurs the MADASS stores the data from 120 seconds before and 15 seconds after the event. A battery backup system ensures the MADASS will continue to record even if vehicle power is not available after the incident has occurred.
The complete system consists of:
- The MADASS main recording system which records the 3 signals from the LG-Alert, as well as pertinent vehicle operating data including engine RPM, throttle position, steering wheel position, brake system pressure, brake position and vehicle position (longitude, latitude), course and speed from a GPS receiver.
- The LG-Alert unit, which provides lateral, axial, and vertical acceleration signals to the MADASS system.
- A remote display unit which displays current operating status, system diagnostic information, and the number of stored incidents. It also provides a communication port for a PC to download incident data for analysis.
- GPS antenna
- Steering wheel position sensor
- Brake air pressure sensor
The system records data continuously while the vehicle master power is turned on. Once an incident occurs all data is stored in non-volatile memory. A total of 5 incident records are stored in the MADASS unit for retrieval and analysis. If the total number of stored incidents exceeds five the next incident overwrites the data of the previous incident in the order of 1 to 5.
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