Focus

  • With its unique precision and temperature stability, it ranks the best performance in the market
  • Its low packaging height is particularly suitable for smart phones, ear wearable and wearable devices
  • Accurate indoor positioning can be achieved through smart phones in case of emergency
  • The Federal Communications Commission (FCC) estimates that up to 10000 lives can be saved each year through accurate vertical location information

Bosch sensortec announced the release of its new generation of air pressure sensor bmp390, which can provide unparalleled accuracy for the height tracking function in smart phones and wearable and ear wearable devices. Thanks to the improved resolution, the new bmp390 can measure height changes below 10cm, and the accuracy is 50% higher than that of the previous generation of sensors. Accurate height detection can realize the positioning function in the room where the GPS signal cannot cover. By adding a vertical specific location to the existing horizontal information, the first responder can determine the floor of the smartphone user who triggered the emergency call. The Federal Communications Commission (FCC) estimates that up to 10000 lives can be saved each year in the United States alone by adding additional accurate vertical location information.

Bosch has launched a new air pressure sensor bmp390. Accurate indoor positioning can save thousands of lives

“By using Bosch sensortec’s latest bmp390 pressure sensor in smart phones, high-precision positioning services can be realized, thus saving thousands of lives,” said Dr. Stefan finkbeiner, CEO of Bosch sensortec.

01  Implement enhanced emergency call

According to the recent report of the Federal Communications Commission, American wireless service providers will soon have to meet a series of increasingly stringent location accuracy standards according to the schedule, including providing callers’ schedulable location information. According to this instruction, from 2021, the z-axis positioning accuracy of mobile phones must be within ± 3M, covering 80% of indoor wireless 911 calls. Similar to the emergency application of the enhanced 911 (E911) system in the United States, it can also be deployed in other regions such as Europe or Asia to make daily life safer and assured.

Bosch and nextnav LLC, a 3D geolocation service provider, cooperate on component specifications and system performance to achieve repeatable high-precision indoor z-axis positioning. To achieve this goal, for example, Bosch bmp390 and nextnav’s urban beacon system (MBS) z-axis service need to be combined in the mobile phone with built-in air pressure sensor to determine the three-dimensional position and positioning.

02  Achieve accurate indoor and outdoor navigation while improving fitness tracking

The sensor can not only help in emergency situations, but also improve indoor navigation as a whole. For example, combined with Bosch sensortec’s position tracking intelligent sensor bhi160bp, these navigation solutions can complement traditional positioning technologies (such as GPS) that cannot operate effectively in a shielded environment. This can help users save time and avoid getting lost, such as when they need to find a parking space in the underground garage.

Bosch has launched a new air pressure sensor bmp390. Accurate indoor positioning can save thousands of lives

In addition, the new bmp390 supports enhanced GPS outdoor navigation applications and calorie consumption estimation. The enhanced atmospheric pressure sensing function can identify whether users are lifting weights or walking up or down slopes or stairs during fitness training. These can improve calorie tracking accuracy by up to 15%. Thanks to the improvement of height measurement accuracy, the fitness tracker can also accurately display the distance users run, walk or ride.

03  Precise, stable and compact

The typical relative accuracy of bmp390 is + / – 0.03 HPA, which is better than any other similar products in the market today, and the typical absolute accuracy can be + / – 0.5 HPA. Its excellent accuracy is due to the significant improvement in temperature stability, drift behavior and noise reduction. The sensor has ideal temperature stability in the full operating temperature (0 to 65 ° C) and pressure (700 to 1100 HPA), and the average temperature coefficient offset (TCO) is only + / – 0.6 PA / K. In addition, the noise is also very low, only 0.9 PA, which is 25% lower than the previous generation bmp380. The device also has high long-term stability and low short-term and long-term drift.

Bosch has launched a new air pressure sensor bmp390. Accurate indoor positioning can save thousands of lives

The new sensor is small in size and only 2.0 mm x 2.0 mm x 0.75 mm, making it easy to integrate into portable devices. At 1 Hz (typical), the system power consumption is maintained at a low level of 3.2 µ a to maximize the battery life of portable devices. Launch time: bmp390 has been sold to key customers of smart phones, wearable and ear wearable devices.

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