Life-saving technologies to the rescue


It happens to most people when they least expect it. My mom was on the way to pick up my kids from school when a car ran a red light and broad-sided her SUV – causing the side airbags to inflate and her phone to be thrown where it couldn’t be found. Very rattled from the collision, my mom searched for her phone but couldn’t locate it. With no witnesses and the driver of the other vehicle also without a phone, they had to wait for someone to stop and call the emergency crews.


Once a passerby stopped and called the authorities, it still took an emergency vehicle quite some time to reach the accident site.  What if the wreck had been more serious and neither of them had been able to physically make a 911 call? What if there weren’t others available to help?

That’s where TI automotive solutions make life easier and safer. For example, TI’s technologies enable the  eCall system for vehicles automatically contacts an emergency service center at the onset of an accident. Implementation of the eCall system within vehicles ensures safety for all drivers. It solves many of the “what if scenarios” that cross my mind when thinking of potential accidents.

Available from TI is the fully tested reference design for the automotive eCall system.  The reference design includes the TPA3111D1-Q1, TI’s mono Class D audio amplifier, which ensures loud and clear audio quality. This is imperative in an eCall system where outside noise from the scene of an accident can impact the clarity of the emergency call.



The TPS43330-Q1 pre-boost circuit boosts backup battery supply voltage, allowing operation down to 2V at the input. Combined with the wide supply voltage (8V-26V) range of the above mentioned TPA3111D1-Q1, the components in this reference design can be powered off a single cell LiFePO4 battery in case the car battery connection is severed in an accident.

To learn more about this life-saving technology watch the eCall demo video from CES or visit http://www.ti.com/tool/auto-ecall-ref.

Also introduced at CES 2014, TI’s automotive biometrics steering wheel demo influences how our cars interact with us. That’s right, interact with us. By placing sensors on the wheel, which use analog front ends like the AFE4300 and the AFE4400, the steering wheel measures drivers’ heart rate, respiration rate and SPO2 levels (the level of oxygen in our blood).

This is helpful for letting the driver know if they are too tired to drive or alerting an enraged driver of their rising heart or respiration rate. This type of steering wheel biometrics can help prevent accidents due to road rage, tiredness, or medical complications, such as a seizure. (See the steering wheel biometrics in action at CES 2014.)

Both the eCall system and biometrics steering wheel are life-saving technologies that have the potential to heighten our safety on the road. I know it makes me feel better about driving my family around. If given the choice, would you rather have the eCall system or the biometrics steering wheel in your car? 

  • I want to know deeply about this via www.ti.com/.../auto-ecall-ref. But i am rejected. Would you help me ? Thanks.

  • Biometric sensing in conjunction with TI's eCall could save the lives of people and animals locked inside unattended vehicles. There are dozens of infants and an untold number of pets who die from heat in the summer because someone left them in a car with the windows rolled up and the doors locked. It would not be difficult to measure the interior temperature and send an alarm if biometric sensors detected the presence of a living person or animal subjected to life-threatening conditions while confined  in a parked vehicle. Perhaps PIR sensors, heart-beat audio sensors, and CO2 sensors could be used to detect the presence of life.