TI's automotive portfolio includes analog solutions and connectivity solutions, DLP® displays, ADAS and infotainment processors, secure MCUs and AEC-Q100 and TS16949 compliant devices, as well as ISO 26262 compliant SafeTITM products.
Advanced Driver Assistance System (ADAS) - Overview
TI's line of analog and embedded processing products includes the latest technological advancements to improve driver safety awareness and safety.
DSP-equipped processors provide multi-view and radar systems for applications such as lane departure warning, rear view and surround camera systems, collision warning and collision avoidance, and blind spot detection.
Radar integrated front end and lidar data conversion enable high performance and high integration at low cost.
Fully integrated ultrasonic parking assist system SoC.
FPD-Link connects standard cameras and megapixel cameras with cost-optimized thin and light cables to ensure performance while reducing the weight and complexity of the harness.
Vehicle black box
　 Car black box boutique program recommended
ARM-based car black box design
High-speed digital "black box" design based on single chip microcomputer
Car black box design based on S3C44B0X and uClinux operating system
Advanced Driver Assistance System (ADAS) camera block diagram
　 Car camera boutique program recommended
New car camera provides driver with undistorted reversing auxiliary image
Design considerations
The vehicle vision control system processes data from sources such as digital cameras, lasers, radars, and other sensors to perform tasks such as route departure reminders, doze sensing, or parking assistance. The processed information is displayed on the display or broadcast via an audible warning signal.
Power Management: The power supply is connected to a 12V or 24V stencil, and the voltage is adjusted up/down for DSP, uC, memory and IC and other functions such as stepper motor, communication interface, display deviation and background. When designing a small, low-cost, and efficient design, power supply design becomes a critical task because of the need for multiple different power rails. A linear regulator with low quiescent current helps reduce battery leakage during standby mode (off ignition), is the load dump voltage tolerance of devices directly connected to the battery, requires low dropout and tracks low battery crankshafts operating.
In addition to providing enhanced conversion efficiency, switching power supplies provide switching rate control for switching FETs, frequency hopping, spread spectrum or triangulation for attenuating peak spectral energy, low Iq, for power sequencing and surges for EMI improvements. Current-limited soft-start, phase-controlled switches for multiple SMPS regulators to reduce input ripple current and reduce input capacitance, higher switching frequency for smaller components (L and C), and undervoltage Indicating SVS function
The communication interface allows data exchange between automotive independent electronic modules, remote sub-modules of infotainment systems, and external devices such as USB memory or video sources. High-speed CAN (up to 1Mbps, ISO 119898) is a two-wire fault-tolerant differential bus. It features a wide input common-mode range and differential signaling technology that acts as the primary vehicle bus type for interconnecting individual electronic modules within the vehicle. LIN supports low-speed (up to 20kbps) single-bus wired networks, primarily for communicating with remote sub-functions of infotainment systems. The LVDS interface is used to transfer large amounts of data to a video screen or video source (digital camera chip) over a high speed serial connection.
Display: Some automotive vision systems have display support features such as parking assistance. Depending on the type of display, the power solution used to display the deviation needs to be placed on top of the LED or CCVF driver for backlight control. Video information can be sent directly from the uC or through the LVDS interface, depending on the size of the display.
Microprocessor: Universal uC handles system control functions and communication with other in-vehicle modules. The core digital function is the DSP, which processes data from digital input sources such as CCD cameras. Depending on the desired performance, a simple screen drive to a complex digital algorithm (such as pattern recognition) may be required. The MCU also needs a high enough performance speed to service the stepper motor in real time.
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