Telematics technology

The TCSV11 uses Quartix’s latest generation telematics system technology, including a fast, 10Hz GPS capability and 100Hz accelerometer sampling. It is a hard-wired device, which is hidden from view in the vehicle. Here is the product description, or you can download the datasheet here.

 

Key features of the Quartix TCSV11 telematics system



10Hz GPS - sampling location, speed and heading ten times per second
This gives the TCSV11 unparalleled capabilities in calculating acceleration and braking, as well as providing 10 times more journey data in the period surrounding an impact

100Hz accelerometer
This +/-8g, tri-axis, 14 bit resolution accelerometer, coupled with fast GPS data, provides the ideal hardware and firmware platform for crash detection and reconstruction, as well as 800Hz capability for future enhancement.

Fast ARM processor with multi-tasking OS
The ARM processor and OS environment enable the TCSV11 to process large amounts of movement and acceleration data in real-time, correlating between them to achieve better accident detection

Alternator sense
The voltage sense capabilities on the input power enable the TCSV11 to detect if the engine is running by monitoring the alternator voltage - thus blocking attempts to tamper with the ignition feed.

Lithium polymer battery
This small, rechargeable battery is capable of powering multiple transmissions to our remote servers in the event that the tracking system is disconnected from the vehicle battery - either during a serious crash or from an attempt at tampering.

Compact and rugged design
The TCSV11 is fitted securely inside a bulkhead mounting plate and clip using cable ties. The unit has fully integrated mobile phone and GPS antennas for fast, simple installation. It measures just 90x55x24 mm and weighs only 90g.

 

Functional block diagram

 

Technical specifications - hardware

EMC/ EMI – the TCSV11 is compliant with European Directive, 1999/5/EC for radiated emissions and conducted immunity for after-market ESA (electronic sub-assemblies)

  • EN 301 489-1 v1.9.2 EMC compliance for radio equipment - Common technical requirements [EN 55022: 2006 A1 Class B, EN 61000-4-2 2009, EN 61000-4-3 2006 A1, A2, ISO7637-2: 2004]
  • EN 301 489-7 v1.3.1 EMC compliance for radio equipment – Specific to portable GSM & DCS devices
  • EN 301 489-3 v1.6.1 EMC compliance for radio equipment – Technical requirements for SRD

Environmental

Operating: -30°C to + 80°C
Storage: -40°C to + 85°C
Humidity: 0 – 95% RH, non-condensing
Housing: UL 94 V0 flame retardant plastic

Power

Voltage: 7v to 36v
Current: < 25mA at 12V operating, < 30mA average current consumption, < 1mA in standby at 12V

Inputs

Ignition sense (see also note concerning 2-wire installation)
Digital inputs x 3
1-wire interface for i-Button driver identification tag and remote temperature monitoring.

2-wire Installation – the TCSV incorporates an alternator voltage sense circuit with 4 preset thresholds which automatically detect the engine running in either a 12V or 24V vehicle systems without the need to connect an ignition sense.

Accelerometer - a tri-axis accelerometer (Freescale MMA8451Q) provides crash and acceleration monitoring with 14bit resolution (between +/- 8g) and sampling rate of 100Hz , together with movement detection during standby state.

GPS – Standard NMEA GPS data with fast time-to-first fix (TTFF). 10Hz data and +/- 2.5m accuracy.

Sounder – an optional sounder/buzzer may be fitted as a driver ID alert. Over-the-Air (OTA) Support - firmware / features upgradable over the air plus command and configuration using SMS or GPRS.

 

Technical specifications - firmware

The firmware is embedded in an ST Micro 32bit ARM M3 Cortex microcontroller with 256kByte Flash / 64kByte SRAM and 4MByte of external EEPROM for trip data storage. It provides the following features:

  • Real-time tracking based on 1s event monitoring (100ms GPS sampling) and 30s updates
  • Storage capacity for 500 trip events
  • Crash detection “black-box” function with high resolution pre- & post-crash data capture and storage for 50 crash events
  • Acceleration/ driver monitoring using GPS and accelerometer
  • Full communications redundancy with remote IP addresses
  • Tamper and theft detection:
    • Vehicle battery disconnection
    • Movement without engine running
  • Robust M2M SIM
  • DATA, GPS status LEDs
 
 
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