Inexpensive Low Data Rate Links for the Internet of Things

by Larry Burgess In the last few years, the smaller size and lower cost of radios has created opportunities for passing more and more information from place to place faster and cheaper.  Low data rate scenarios like soil monitoring and crop quality on farms, detection and instant notification of leaks on pipelines, availability of parking [...]

November 2nd, 2017|Categories: IoT, Ultra Low Power, V2017, Wearable Devices, Wireless|

Overview of Wearable Device Sensors Slides 2017

Wearable fitness devices are influencing today’s medical devices that target clinical and everyday applications. Some of the innovation involves new modalities of measurement: for example an iPhone that analyzes your eyeball to determine blood pressure. But fundamentally the challenge has shifted from determining how to make accurate and precise measurements to how to enable a compact [...]

October 30th, 2017|Categories: News, Sensors, V2017, Wearable Devices|

Self-Care Medical Devices and Health Wearables Require Increased Focus on Design for Human Factors

image source: Human Factors and Medical Devices on FDA website by Walt Maclay Recently, I attended a fascinating panel discussion that explored the increasing importance of understanding human factors and user experience in the design and successful use of a medical device for home care or self-care. Medical devices like insulin pumps and home dialysis [...]

July 27th, 2017|Categories: Medical Devices, V2017, Wearable Devices|

Getting Data into the Cloud

The challenge of IoT and connected devices is getting data from the device sensor to the cloud, that is, getting access through the internet to where that data is used, processed, and stored. The ubiquitous use of WiFi and Bluetooth through smartphones, along with the widespread availability of cell towers and public WiFi access points, [...]

July 19th, 2017|Categories: IoT, V2017, Wearable Devices, Wireless|

Wearable Device Design Mistakes

Frequently, we are called in to perform design reviews of wearable devices. Here are a couple of common design mistakes we see for wearable devices: Design draws too much power To save power, you will want to turn off portions of your design when you're not using them.  Design and testing of shut-down and sleep [...]

July 5th, 2017|Categories: V2017, Wearable Devices|

Biosensors: Avoiding errors measuring physiological functions like EKG, heart rate, and temperature

Wearable medical devices are biosensors attached to the human body to detect and monitor changes and capture biological / physiological data. These devices are usually non-invasive devices that function autonomously. Monitoring older adults and subjects with chronic conditions in the home and community are a growing focus of these applications. Common types of physiological functions [...]

May 11th, 2017|Categories: Medical Devices, Sensors, V2017, Wearable Devices|

Partnership Provides Home Health Solutions

Voler Systems and V2Solutions recently partnered to develop the hardware, embedded software, mobile app and website for a home health product. It required a small battery-powered device to transmit data to a mobile phone and website. The biggest challenge in this project was the battery life: how to maximize the length of time between charges [...]

July 29th, 2016|Categories: IoT, Medical Devices, Recent Projects, Ultra Low Power, V2016, Wearable Devices|

ReadWrite: How Does Sensor Data Go From Device To Cloud?

With so many multiple wireless standards available,  it is sometimes difficult for people to decide which approach is the best for their application, device, or business.  At the beginning of each new project, we spend a lot of time understanding the context of the design to identify the important tradeoffs and parameters.  This helps us to understand the [...]

October 16th, 2015|Categories: IoT, News, Wearable Devices, Wireless|

Batteries Holding Back Wearable Devices Article Featured on ReadWrite

As the number of wearable devices increases, the demand for smaller and longer-lasting devices, remote transmitters and transponders, and higher device intelligence will drive the quest for higher energy efficiency and capacity in the power sources of these devices. If we don't continuously improve our batteries, the wearable industry will power down. We are excited [...]

August 18th, 2015|Categories: IoT, News, Ultra Low Power, Wearable Devices, Wireless|

Design Checklist for Wearable Devices

Here is a great checklist for wearable devices. When we do a design we check all of these things and more. Often we need to use our engineering judgment on the tradeoff between size, cost, testability, and manufacturability of the board. Power What size battery? What is the appropriate battery lifetime? How often do various [...]

July 21st, 2015|Categories: Checklist, Design Tips, V2015, Wearable Devices|Tags: , |