Slotcar Platoon System Description
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This page describes in short the main parts of the system
Carrera Car
The main board
- The main processor is the ARM processor by ST Microelectronics STM32F405RGT6: http://www.st.com/web/catalog/mmc/FM141/SC1169/SS1577/LN1035/PF252144. It has camera processing capability.
- The ZigBee communication processor is located on separate board. It is Texas Instruments CC2530: http://www.ti.com/ww/en/analog/cc2530/. It is a normal 8051 based processor, which can be programmed. It has also some inputs and outputs, so it can be potentially used for temperature gradient estimation, WSN etc. The communication speed is up to 200kbit/s. The processor is used for inter-vehicular information sharing needed for control - desired distances, control effort etc. Uses ZigBee standard.
- The debug communication processor is Nordic Semiconductor nRF24L01: https://www.nordicsemi.com/kor/node_176/2.4GHz-RF/nRF24L01P. It uses a proprietary 2.4GHz protocol with speed up to 2Mbit/s. We use it for code uploading, real-time measurement acquisition and debug purposes.
- Gyro with integrated accelerometer LSM330DLC: http://www.st.com/web/catalog/sense_power/FM89/SC1448/PF252427. It is a 3 axis gyro and accelrometer with I2C communication.
- Magnetometer MAG3110: http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MAG3110. This might cause a problem due to magnet in the car.
- Temperature sensor TMP102: http://www.ti.com/product/tmp102.
Distance measurement board
There are two such boards in each car: one for front distance measurement and one for rear. The main components are:
- Infrared LED with high power, high speed and wide angle VSML3710: http://www.vishay.com/docs/81300/vsml3710.pdf.
- Infrared Phototransistor with high speed and wide angle VEMT3700F: http://www.vishay.com/docs/81584/vemt3700.pdf. The suffix F is necessary, since it is not sensitive to visible light.