VIDAC.2 is a smart unit able to do more functions: multiports with various acquiring sensors, data storage and process, communication and control of external devices. All of it maintaining low consumption and small size.

The logic side architecture has been designed in order to support data processing requests particularly onerous:

•  MCU Motorola embedded micro controller based on RISC MPC500 Power PC architecture

•  32 Kbyte of RAM memory inside the micro controller

•  512 Kbyte of Flash memory for the program

•  512 Kbyte of fast static RAM or the on-line data treatment

•  from 512 Kbyte up to 4 Mbyte of FLASH memory, for the data and application program storage in permanent way also in absence of feeding. The FLASH memory can be (as option) increased up to 8Mbyte

•  2Kbyte of EEPROM memory with serial access to store configurations and calibrations.

•  From 128 Mbyte up to 1 or more Gbyte of SDRAM memory(available only as option in case of COMPACTFLASHTM controller presence).

 The communication dedicated resources permit to solve in a simple way all the acquisition, interconnection and data exchange problematic amongst heterogeneous equipments. For this aim are foreseen:

•  3 CAN standard interfaces

•  2 ISO09141 standard interfaces with the possibility to chose the protocol, type 4 or type 5

•  8 RS232 serial lines composed by 2 wire(RX-TX) for communication using GSM telephones, navigation system, on board computer, display, card-reader, info-passengers, personal computer, modem, etc.

•  1 RS482/422 serial line

The analogue signals input selection, configured by a single project requirement, make possible the acquisition up to 16 signals of the following types:

•  Platinum temperature sensors

•  Potentiometers

•  Temperature variable resistors

•  Amplified sensors

•  Resistive shunt

•  Thermocouple typo K(2 input available on request) besides a battery voltage (1 input internally conditioned)

 With regard to the digital input, are available 16 of these with the following characteristics:

•  Reading from connectors connected to mass or to battery(8 inputs configurable and 8 inputs a negative logic)

•  Measurement of frequency signal period (maximum 8 inputs)

•  Excludible internal pull-up

•  Protection against overvoltage

  VIDACä moreover permits the acquisition, also in parallel to the engine control gear case, of two signal in frequency by two differential inputs with high impedance (typically engine speed, vehicle velocity); the threshold level can be programmed in order to be compatible with various sensors and conditioning (reluctance pick-up, Hall effect sensors, etc.)

 With regard to the digital input open collector, are available 16 of these able to pilot:

•  Lamps

•  Relais

•  PWM controlled devices

 To complete the possibility to control the remote devices are also present two analogue outputs, while are foreseen four outputs for sensors feeding. Moreover, are been integrated :

•  A Bluetooth module for a short range communication

•  Integrated perpetual calendar/clock function that offers the possibility to work in a unsupervised way and the possibility to program a system periodic acquisition and or communication.

•  Turn meter

•  GPS module that, combined with an odometer and a turn meter, permits to follow advanced localization functions

•  Temperature sensors