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TESEO_DRAW
Dead reckoning automotive way
Data brief
Application
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In-dash navigation
Emergency call (eCall, ERA-GLONASS)
Usage-Based Insurance (UBI)
Anti-theft
Fleet management
Asset tracking
Road tolling
Car to car
Description
TESEO-DRAW firmware is a multi-sensors data
fusion hub for Teseo family IC’s.
Features
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Flexible firmware solution, supporting
different configurations:

Classic
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CAN gyro
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Mixed
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Differential Wheel Pulse (DWP)
Sensors over UART
Automatic free mount
Automatic sensors and temperature
compensation
3D dead reckoning
Map matching feedback
June 2014
Thanks to filtering and predictive algorithms
TESEO-DRAW augments user’s positioning
experience in terms of accuracy and availability,
especially when GNSS signal is degraded by
environmental conditions (tunnels, urban canyon,
indoor parking and multilevel highways
junctions).
Vehicle’s position, height, heading and velocity
are calculated by a Kalman filter, which fuses
information coming from GNSS satellites with
data coming from sensors such as gyroscope,
accelerometer, odometer and temperature
sensors.
TESEO-DRAW is provided bundle with ST
TESEO GNSS multiconstellation receiver IC’s.
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Overview
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TESEO_DRAW
Overview
Figure 1: Dead reckoning user cases
Table 1: Firmware configurations
Name
Yaw rate sensors
Distance sensors
Other sensors
Classic
MEMS gyroscope
Discrete odometer
Discrete reverse signal
3axis accelerometer
Temperature sensor
CAN gyro
CAN gyroscope
CAN odometer
CAN reverse signal
Mixed
MEMS gyroscope
CAN odometer
CAN reverse signal
3axis accelerometer
Temperature sensor
DWP
CAN differential wheel pulse
CAN odometer
CAN reverse signal
Evaluation tools
TESEO-DRAW firmware is available on demand and works in combination with any Teseo
evaluation kit.
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Revision history
Revision history
Table 2: Document revision history
Date
Revision
24-Jun-2014
1
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Changes
Initial release.
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