Sensors are increasingly becoming the focus of the car, the Japanese research team a new type of sensor can capture the driver driving fatigue, thereby reducing fatigue driving accidents, the European HARKEN sensor system has Sensor the same purpose. As a set of sensors in one of the Google unmanned vehicles, but also the sensor and the car into the extreme.

  The new sensor system can amplify the weak pulse of the skin on the back of the human body and detect heart rate. This system is installed in the car seat, you can capture the driver fatigue and nap omen, greatly reduced by the fatigue caused by driving accidents. In addition, the system can also help the elderly to health management, or to help patients keep abreast of the heart in order to be able to quickly contact the doctor in case of emergency. The sensor wrapped around the thickness of about 2 cm of polyester as a buffer material, the voice Fuel Rail Pressure Sensor of the sound and the car when the vibration and other excessive high-frequency noise can be shielded out. While the microphone in the sensor system can display the information captured by the oscillator as a heart sound. Heart sound refers to the sound caused by the contraction of the heart, the heart valve closure and the blood impinging on the ventricular wall, the arterial wall and so on.
  
   European sensor system HARKEN and Japan's new sensor has the same purpose, it can by measuring the heart rate and respiratory rate to detect the signs of nap. HARKEN is a sensor system built into a car seat belt and seat cover that can even detect fatigue or drowsiness before a noticeable external expression such as yawning or bad driving habits. The emergence of HARKEN may lead to the creation of a driving warning system to help reduce the number of annual traffic accidents.

The HARKEN system consists of a car seat sensor, a seat belt and a signal processing unit for real-time processing of sensor data. Such a system can also filter out background noise such as vehicle vibration and other body movements of the driver so that it can focus on detecting heartbeat and respiration rate. When people enter into a state of fatigue or drowsiness, their breathing and heart rate begin Fuel Rail Pressure Sensor to change. HARKEN can monitor these changes and warn the driver before the signs appear. European researchers hope that the HARKEN project can focus on a short-term listing time range so that street tests can be conducted under actual traffic conditions, as any technology that can improve alertness to sleepy drivers is likely to save lives on the way A long way to go.

   Speaking of sensors and cars have to mention the Google unmanned car, can be called 'car sensor set generators', it will be the integration of cars and sensors to the extreme. Through the integration of these sensor system data, one of Google's cars can drive millions of miles of cars. Most of the hardware systems of Google's unmanned vehicles are mostly state-of-the-art, so it's not just about the car's own way, but also the ability to detect obstacles, which is more complex than we thought. Google's unmanned vehicles have a range of detection technology, sonar equipment: radar systems are usually used with the sonar system, at least in some Google test machine is so. Their vision is very narrow, but they can let the car Temperature Sensor know the other direction to the car dynamic. These sensors can be used to provide corners for the car, start the brakes and pre-tighten the seat belt and so on.

HD camera car built a number of cameras, you can let the system get the most panoramic view. You can let the system detect the real-time location of other vehicles. Laser technology has a great effect on the system, although there are a lot of sensors can detect the distance, but still far less accurate than the laser technology. The unmanned vehicle system uses Velodyne's 64-beam laser system, which can rotate the range of 360 °, greatly improving the accuracy of detection. The LIDAR system can show the exact location of the car, and the difference between geography is that it provides the location of the car within a particular environment. No car also need Speed Sensor  to measure the speed of the car, so Google in the car before and after the installation of the radar.

Car manufacturers use sensors to detect fatigue driving, which will help drive safety. As the car is becoming more and more intelligent, the sensor will be superb, Google unmanned car is a combination of many sensors, the sensor is to promote the automotive industry, the key to the revolution.