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Bosch Sensortec



Pedestrian position tracking:
invented for love

Bosch Sensortec

Pedestrian position tracking – Invented for love

"Love will always find a way," as the saying goes. And this is what Tom thought when he set out for a date with Sarah. However, as it turns out, the true challenge would not be the date itself, but getting to the meeting place. Accompany Tom on his odyssey and find out which problems he encounters, how he solves them and whether he will manage to turn his story with Sarah into a happy end!

Bosch

Pedestrian position tracking – Invented for love

"Love will always find a way," as the saying goes. And this is what Tom thought when he set out for a date with Sarah. However, as it turns out, the true challenge would not be the date itself, but getting to the meeting place. Accompany Tom on his odyssey and find out which problems he encounters, how he solves them and whether he will manage to turn his story with Sarah into a happy end!

Join Tom en route to his date with Sarah and learn how he sabotaged his chance for romance by using an unreliable smartwatch with GPS navigation only.

Bosch Sensortec

Lost GPS signal

In order to find the most direct path to Sarah, the wearable has to master navigation perfectly. But Tom's smartwatch provides inaccurate data, fails to recognize his current location properly and thus leads him in the wrong direction several times. Because of urban canyons such as high buildings, underpasses or rural areas, the device often lacks reliable GPS or the signal even gets lost completely.

Bosch Sensortec

High power consumption

For Tom´s smartwatch, power consumption is crucial because the space for batteries in small device is limited. This is also true for other types of wearable devices such as hearables. In addition, both navigating with GPS and high sensor performance quickly drain battery life. Power-efficient sensors with smart power management features, and yet also high precision, are thus key.

A second chance

Bosch Sensortec
New watch – new chance?
Arriving in time with position tracking
Keep calm and keep the GPS asleep
Sleeping GPS extends battery life
GPS lost – Position tracking active
Accurate position tracking despite lost GPS signal
Shorter distance – Extended battery life
Power consumption saves up to 80% of energy
Bosch Sensortec

New watch – new chance?

Arriving in time with position tracking

Sarah is willing to give Tom a second chance. To arrive on time, Tom is using a different smartwatch that promises a reliable and power-efficient navigation function: position tracking, also called pedestrian dead reckoning (PDR). Since position tracking is an always-on feature, the smartwatch immediately finds the correct route right from the start. Let's follow Tom!

Bosch Sensortec

Keep calm and keep the GPS asleep

Sleeping GPS extends battery life

Tom is relaxed: His smartwatch is navigating accurately and the battery power is stable. This new solution tracks Tom's position by applying a motion sensor with an integrated algorithm for pedestrian dead reckoning (PDR): The BHI160BP calculates the user’s relative location and then recalibrates itself every few minutes to obtain the absolute position provided by the GPS module. This way, the GPS can be kept in sleep mode for most of the time, which drastically reduces the wearable device's power consumption and extends its operating time.

Bosch Sensortec

GPS lost – Position tracking active

Accurate position tracking despite lost GPS signal

After reaching the city, with its urban canyons, skyscrapers and underpasses, the position tracking solution BHI160BP ensures that the smartwatch can maintain accurate and reliable navigation even when the GPS signal is weak or blocked. Also, no recalculation is needed because of the seamless and always-on nature of the solution. Tom knows exactly which direction to take!

Bosch Sensortec

Shorter distance – Extended battery life

Power consumption saves up to 80% of energy

After a short walk, Tom has reached the destination even before Sarah. He is surprised to see that his watch’s battery is still almost fully charged! The BHI160BP enables pedestrian position tracking with up to 80% savings in system power consumption compared with a typical GPS-only solution, without compromising on accuracy. When Tom looks up, Sarah is standing in front of him, smiling away. The story has a happy end afterall!

Bosch Sensortec
New watch – new chance? Arriving in time with position tracking
Bosch Sensortec
Keep calm and keep the GPS asleep Sleeping GPS extends battery life
Bosch Sensortec
GPS lost – Position tracking active Accurate position tracking despite lost GPS signal
Bosch Sensortec
Shorter distance – Extended battery life Power consumption saves up to 80% of energy

Follow Tom as he takes a direct route to his date with Sarah and learn how Bosch Sensortec's solutions are invented for life – and love!

Bosch Sensortec

Always navigate accurately

Sarah gives Tom a second chance. He wants to arrive on time by using a new smartwatch with pedestrian position tracking, enabled by the smart sensor BHI160BP. The sensor combines an accelerometer and a gyroscope with a microcontroller and advanced algorithms for pedestrian dead reckoning (PDR). To maintain accuracy, it tracks the users' position, calculates their relative location and then wakes up the GPS module only every few minutes in order to obtain an absolute position. This drastically extends the device's operating time.

Bosch Sensortec

Save up to 80% of energy

Tom's new smartwatch is still almost fully charged when he arrives at the destination for his date. The BHI160BP saves up to 80% in system power consumption compared with a typical GPS-only solution – without compromising on accuracy. It is the industry’s first position-tracking smart sensor that utilizes integrated motion sensors to improve GPS location tracking. This new position-tracking approach is set to enable a new class of compact devices with even smaller batteries.

Bosch MEMS sensing solutions:
Make wearables always wearable

Bosch Sensortec

Meet the world's smallest navigation system: the BHI160BP position-tracking smart sensor