For years, Cassia Networks has delivered reliable, long-range multiple-device connectivity, edge-processing, and location services solutions for Bluetooth® enabled IoT networks. Supporting a wide range of markets, from industrial IoT and digital healthcare to smart campus and personnel and asset tracking, Cassia’s enterprise Bluetooth IoT products and solutions are deployed around the world.

In a recent podcast, the Bluetooth Special Interest Group (SIG) interviewed Felix Zhao, CEO of Cassia Networks, to discuss how the company is working with today’s leading solution providers and partners to provide personnel and asset tracking management solutions and location services that rely on Bluetooth technology.

Q&A with Felix Zhao

How is Cassia working with solution providers to enable positioning and location services using Bluetooth technology?

For Bluetooth tag and beacon vendors and Bluetooth location services solution providers, Cassia provides Bluetooth enabled gateways and Bluetooth IoT management software. Our partners provide the Bluetooth tags, beacons, and application software. The combined location services solutions have been widely used for personnel and asset tracking applications for various industries, such as industrial, healthcare, education, construction, and retail, in many countries and regions.

Bluetooth® positioning technology plays an important role in hospitals, clinics, and nursing homes.

For example, Cassia is working closely with to provide key asset tracking management solutions. This combined solution has been successfully deployed and used in various markets (e.g., medical manufacturing factories) to track personnel and assets in real time.

Cassia has also been working closely with our location services solution provider partner in China to develop a personnel tracking solution for petrochemical factories. These types of factories are high-risk environments, and this solution allows management to track the location of personnel in real-time and send notifications/alerts in the event an employee’s health and safety are at risk. The solution helps keep workers safe and ensures workplace health and safety policies are met.­

Furthermore, Bluetooth positioning technology plays an important role in hospitals, clinics, and nursing homes. By deploying an asset tracking solution powered by Bluetooth technology, medical staff can easily track and monitor patients as well as locate medical assets such as wheelchairs, crash carts, and ventilators. Cassia is currently working with several healthcare solution providers to provide personnel and asset tracking solutions based on Bluetooth positioning technology.


Bluetooth Location Services

See 8 use cases for enhancing building efficiencies and creating a better visitor experience, discover new data that supports the latest trends and forecasts, and find out what’s driving the rapid adoption of location services solutions.


How can Bluetooth technology help solve location and positioning challenges?

Traditional positioning technology, such as GPS, does not work well in an indoor environment. Bluetooth® technology helps to overcome this challenge. The signal strength (converted to an RSSI value) of a Bluetooth tag or other Bluetooth enabled device received by the Bluetooth gateway is inversely related to the distance. That is, as distance increases, the Bluetooth signal strength or RSSI value gradually decreases.

As a result, one can determine if a Bluetooth end device is in the coverage area of a Bluetooth gateway and the approximate distance between the Bluetooth device and the gateway. This is the simplest form of Bluetooth location services: point of presence.

If there are three or more Bluetooth gateways receiving broadcast signals from the same Bluetooth end device at the same time, the coordinates of the device can be calculated more accurately through a trilateration algorithm.  The accuracy is generally around three to five meters. This is the second form of Bluetooth location services.

These location services solutions are suitable for various applications, such as personnel and asset tracking in schools, hospitals, and factories. Cassia’s Bluetooth gateways and IoT Access Controller (AC) currently support all the above location services applications.

We are also currently working on new products and solutions designed to significantly improve accuracy (e.g., with sub-one-meter accuracy) using Bluetooth angle of arrival (AoA)/ angle of departure AoD positioning technology.

Why have you chosen to use Bluetooth technology, and what value does it offer?

We have chosen to focus on Bluetooth® technology because we see the value Bluetooth offers for the IoT and location services applications.

Compared with other wireless technologies, the cost of a Bluetooth® chip and module is significantly lower.

The first reason is the low power consumption and long battery life. Tags and beacons, for example, are usually powered by batteries. The minimal power consumption of Bluetooth technology can significantly extend the battery life of these devices compared to other wireless technologies, such as Wi-Fi, where battery life will only last a few days or weeks at most. The advantage for the end user is a significant reduction in maintenance and equipment costs.

The second reason is the low cost. Compared with other wireless technologies, the cost of a Bluetooth chip and module is significantly lower. This plays a critical role in the IoT, especially for enterprises looking to reduce costs and improve their bottom line. 

Third, Bluetooth technology is one of the most common connectivity standards and is universally accepted. For instance, the 2.4 GHz band is available worldwide, which makes it a standard for low-power wireless connectivity. Because of the ubiquitous nature of Bluetooth technology, end users are less concerned with compatibility issues and/or having to customize different end devices for different countries.

Last, the market for Bluetooth technology is growing rapidly. To date, there are tens of billions of existing Bluetooth devices, such as Bluetooth tags, beacons, sensors, etc., which greatly lower the entry barriers for IoT customers.

What do you see for the future of Bluetooth technology as it relates to location services?

It’s exciting to see how Bluetooth® technology is meeting the needs of location services and how it is becoming the wireless technology of choice.

At Cassia, we’ve been able to extend the range of Bluetooth technology by up to 1 km using Bluetooth Low Energy (LE) Coded PHY without requiring any changes to the Bluetooth protocol or end device. As a result, fewer gateways are needed to cover large areas like a factory, hospital, or school, allowing for reduced deployment and equipment costs. For our partners, this is a huge advantage.

We see the growing number of Bluetooth low-power devices being used in various industries for personnel and asset tracking applications, and we’re excited to be contributing to this growth. Cassia is committed to providing our current customers and future partners with the most advanced enterprise Bluetooth IoT solutions and products to meet their needs.


Extending an ENS to Support Wearable Devices

See how an Exposure Notification System can better address population groups critical to managing a pandemic by supporting wearables such as wristbands.


Adopting AoA Direction Finding Provides a High-Precision Location Experience

From general proximity solutions to high-precision positioning, Bluetooth® technology provides a range of reliable…

Digital Key Builds on Past Practices to Create a More Secure Future

This excerpt was taken from an article that was recently published on Too…

We All Drive Automatic Cars. Why Do We Have a Manual IoT?

For the Internet of Things to deliver on its promise of reimaging supply chains…

Getting Started With Bluetooth For High Precision Indoor Positioning

This white paper provides an introduction to Bluetooth high precision indoor positioning, explores what…

Elevating Patient Experience at UCHealth

Find out how Pointr enables Deep Location® to elevate the patient experience at UCHealth.

Digital Interoperability: The Next Game-Changer For Global Cargo Tracking Solutions

Standards-based IoT connectivity to gateways and the cloud is essential for container trackers get…

How to Make Buildings Smarter with Location Based Services

Digital transformation has been enabling smarter buildings for decades. Today, as you enter a…

RTLS Provides Real-World ROI for Riverside Healthcare

In a recently released webcast, Erik Devine, chief information security officer at Riverside Healthcare,…

An “Indoor GPS” For Warehouse Automation (And More...)

Bluetooth indoor positioning may be the high precision “indoor GPS” that businesses have been…

Optimizing Healthcare Facilities Using Wireless Technology – A Case Study

Bluetooth® technology is being used to successfully integrate many of the critical devices and…

Sub-metre accuracy claimed for indoor Bluetooth positioning kits

U-blox is claiming sub-metre indoor accuracy with development kits for Bluetooth direction-finding and positioning.

Luminaire Level Lighting Controls and the Future of Healthy Buildings

As we build back from the pandemic, the building industry is rethinking how we…

Connect: Car Access Demo

In this demo, Texas Instruments will discuss and demonstrate Bluetooth 5.1 and its cutting…

Bluetooth® Technology and the Response to the Covid-19 Pandemic

Millions of people have installed smartphone applications which are designed to notify users if…

SmartShepherd Improves Scalability For Their Smart Farming IoT Applications With Cassia’s Bluetooth Gateways

Learn how SmartShepherd partnered with Cassia Networks to enable real-time tracking and monitoring of…

Bluetooth shipments to reach six billion by 2025

Annual shipments of Bluetooth-enabled devices are set to top six billion by 2025, according…

2021 Bluetooth Market Update

Supported by updated forecasts from ABI Research and insights from several other analyst firms, the Bluetooth Market Update highlights the latest Bluetooth trends and forecasts.

Back to normality

Chuck Sabin, senior director of market development at Bluetooth SIG, explains how Bluetooth Technology…

How Bluetooth® Technology is Enabling Safe Return Strategies in a COVID-19 Era

This report shares insight into how Bluetooth® technology is being leveraged by organizations of all sizes to…

POM Tracer Ensures Workplace Safety with Contact Tracing Solutions from Laird Connectivity

POM Tracer was looking to create an easy-to-implement product that would allow businesses and…

2020 Bluetooth Market Update

Supported by updated forecasts from ABI Research and insights from several other analyst firms, the Bluetooth Market Update highlights the latest Bluetooth trends and forecasts.

Bluetooth Location Services

See 8 use cases for enhancing building efficiencies and creating a better visitor experience, discover new data that supports the latest trends and forecasts, and find out what’s driving the rapid adoption of location services solutions.

Lighting as a Platform

See how connected lighting systems are being used as a platform to enable advanced building services like wayfinding, asset tracking, and space utilization to improve the ROI of smart building investments.

Build a Smarter Building with Blue

See how Bluetooth increases reliability, reduces costs, and enhances your smart building ROI.

An Introduction to Bluetooth Beacons

Learn how to build your own Bluetooth beacon or integrate beacon technology into your existing products and apps.

 Get Help