Integration of Multiple Sensors Become the Development Trend of MEMS Sensor
After MEMS sensor becomes fires up in portable mobile terminal, the industry gradually find more applications of MEMS sensor, unexpected results can be brought by using the characteristics of the sensor in the appropriate fields. For instance, the application in remote control of the somatic sensory game, in air mouse and LBS all bring new target market for MEMS sensor. Meanwhile, 10-degree-of-freedom sensor has function of 3D information indicating, which can immune from the influence of weak GPS signal, and this indicating capacity has great significance in multiple areas.
Wu Weidong, the senior marketing manager of analog and micro-electromechanical systems department in STMicroelectronics (Chinese) pointed out, in terms of the application, the integration of multiple sensors enables more space detection capability. Previous acceleration sensor made smartphone have functions of the switch between horizontal and vertical screen and of song-switching; this is a stage from nothing to something and also a leap for the industry: posture and motion can get a feedback, but it still stays in the interface level. As for the next stage, when the acceleration can not be detected when putted on the plane, which requires a gyroscope; but these two devices combined, the due north can not be detected, which needs a geomagnetic at this moment, then iNEMO can tell which direction and what posture you should toward and have, therefore bringing more precise and richer data. So, space-based navigation will be the trend in the future, and become a very potential market.
When application shows more imaginary space, the integration of sensor will become trend.
Yan Gengzhen, the senior marketing manager of Freescale sensor sector in Asia Pacific region said in an interview, the system-level intelligent integration of multiple sensors is an important direction for the future application of sensor. Freescale is a leader in the development direction. The MMA955x series of intelligent sensor platform of Freescale is an acceleration sensor with embedded 32-bit MCU, and built-in Flash, RAM. This smart sensor platform can include up to 12 different sensors, and conduct localized intelligence analysis to data from these sensors, and finally achieve the communication between results and host CPU. This kind of design can realize the data transmission in the integration process.