editor's blog
Subscribe Now

Indoor “GPS”

Location-based services have become popular as smartphones are able to listen to the faint GPS (or GLONASS) signals and figure out where you are in relation to other things. But roofs and walls can block out those satellite signals, leaving you on your own once you enter a building.

Now, many mapping applications are intended to get you to a building, so, once you’re there, well, you’re there – mission accomplished. But, as any of you that go to conventions will know, even within the building, it can still take a map to navigate the exhibition floor.

Rohm, in cooperation with iSiD, has announced the Guidepost Cell to address such indoor navigation challenges. The cells make up the nodes of a network that can detect the presence of a smartphone with WiFi turned on and then figure out which is the closest cell. Because it passively looks for telltale WiFi signals, it doesn’t have to emit a constant beacon, reducing power consumption considerably.

Because of this miserly behavior, they can operate without external power – by harvesting the indoor light. They do this using dye-sensitized cells, something we’ll cover in more detail in the future. They’re essentially “indoor” solar cells.

This means that a network can be established more or less by distributing these Guidepost Cells and turning them on. An application on the phone can then detect the network and, coupled with an indoor map, show you where you are or where you want to go or send you a message.

You can find more detail in their release.

Leave a Reply

featured blogs
Jun 22, 2021
Have you ever been in a situation where the run has started and you realize that you needed to add two more workers, or drop a couple of them? In such cases, you wait for the run to complete, make... [[ Click on the title to access the full blog on the Cadence Community site...
Jun 21, 2021
By James Paris Last Saturday was my son's birthday and we had many things to… The post Time is money'¦so why waste it on bad data? appeared first on Design with Calibre....
Jun 17, 2021
Learn how cloud-based SoC design and functional verification systems such as ZeBu Cloud accelerate networking SoC readiness across both hardware & software. The post The Quest for the Most Advanced Networking SoC: Achieving Breakthrough Verification Efficiency with Clou...
Jun 17, 2021
In today’s blog episode, we would like to introduce our newest White Paper: “System and Component qualifications of VPX solutions, Create a novel, low-cost, easy to build, high reliability test platform for VPX modules“. Over the past year, Samtec has worked...

featured video

Kyocera Super Resolution Printer with ARC EV Vision IP

Sponsored by Synopsys

See the amazing image processing features that Kyocera’s TASKalfa 3554ci brings to their customers.

Click here for more information about DesignWare ARC EV Processors for Embedded Vision

featured paper

Carmakers charge ahead with electric vehicle powertrain integration

Sponsored by Texas Instruments

When we advance EV powertrain architectures, carmakers can cut system-design cost in half while maximizing power density, increasing efficiency, improving reliability and making EVs more affordable for more people.

Click here to read more

featured chalk talk

ROHM's KX132-1211 & KX134-1211 Accelerometers

Sponsored by Mouser Electronics and ROHM Semiconductor

Machine health monitoring is a key benefit in the Industry 4.0 revolution. Integrating data from sensors for vibration detection, motion detection, angle measurement and more can give a remarkably accurate picture of machine health, and timely warning of impending failure. In this episode of Chalk Talk, Amelia Dalton chats with Alex Chernyakov of ROHM Semiconductor about the key considerations in machine health monitoring, and how a new line of accelerometers for industrial applications can help.

Click here for more information about Kionix / ROHM Semiconductor KX134 & KX132 Tri-axis Digital Accelerometers