Propeller Health is an organization dedicated to improving the management of asthma for patients and healthcare professionals. Prior to the development of the Inhalation Sensor, there was a lack of available data to properly detect where and when asthma symptoms were triggered. The Propeller Health Inhalation Sensor detects when a patient has activated their inhaler. The time and date of this activation is communicated via Bluetooth to the patient’s mobile phone. The data from this phone is in turn sent to a database, which can be used to analyze the causes of asthma. Propeller Health chose LSR to develop this new and innovative product to improve data collection.
The Technical Challenge
The small compact device was required to operate on a single coin cell battery, while having sufficient processing power to implement the data management application and run the Bluetooth PAN profile. As a result, an ARM Cortex M3 processor running a Real Time Operating System was employed.
LSR completed the software, hardware, antenna, CAD design and certification for the product. Bluetooth communication was implemented using the Stonestreet One Bluetopia™ Bluetooth stack and the Texas Instruments CC2560A radio.
The final design for the Inhalation Sensor was a circuit board with a 1 1/2" inch diameter. The device obtains in excess of 30 days of battery life with a rechargeable coin cell battery. Typical indoor communication range is greater than 80 feet. The device is capable of communicating with the iPhone, as well as Android and feature phones. The product is currently being deployed, and information is being collected to further the knowledge of the triggers for asthma.
As medical device lifecycles continue to shrink, new feature requirements are expanding at a dizzying rate — introducing complex new technologies into the validation and certification process.
The team at LSR understands the unique compliance and safety considerations of the medical device industry.
With over three decades of experience in wireless product development, LSR has developed a variety of unique solutions for the medical device community. These products include patient tracking systems, health measurement devices, and portable diagnostic equipment.
- Experience leveraging wireless in a medical setting, including evaluating IT network constraints and bandwidth concerns
- Human body modeling and custom antenna design
- Extensive experience designing patient-worn and implantable wireless devices
- Development of MICS, Wi-Fi, ANT, BLE and other standards-based wireless products
- Custom protocol development to meet your application’s unique needs
RayMarine, a world leader in marine electronics, develops and manufactures the most comprehensive range of electronic equipment for the recreational boating and light commercial marine markets. The Raymarine e7 Network Multifunction Display breaks new ground with Wi-Fi video streaming to Apple iPhones and iPads or Android Tables and Smartphones. Additionally the e7’s built-in Wi-Fi adapter allows it to wirelessly sync waypoints and routes with the Navionics Mobile app. This enables you to plan your next voyage on your iPhone or iPad and then wirelessly sync it to the e7’s chartplotter.
The Technical Challenge
High performance Wi-Fi was essential for the e7 device to interoperate with today’s leading smartphones for streaming video. The device also required Bluetooth to stream music and audio control directly from the smartphone to the display. This coupled with the challenging environment demanded a robust radio solution that could withstand various interferers at extreme temperatures.
The e7 platform is based on LSR’s TiWi-R2 module. The FCC/IC and ETSI tested module is based on the WL1271 solution from Texas Instruments and supports 802.11 b/g/n and Bluetooth 2.1+EDR. The fully integrated module provided a fast time to market and easy to implement solution. The TiWi-R2 boasts best in class performance (4dB better link margin than competition) in a footprint smaller than a penny (13mmx19mm). LSR strategically designed the module to include an analogue front end and TCXO for superior range performance at industrial temperatures. Raymarine took advantage of LSR’s flexible antenna solutions and implemented a printed circuit board trace antenna to fit within the slim profile of the e7 while still offering advanced performance.
- Experience in leveraging wireless in an industrial setting, including evaluating potential interferers and demanding environmental factors
- Custom antenna design and driver integration with various operating systems and microprocessors, including QNX, Linux, and Android
- Development of Wi-Fi, Bluetooth, 6LoWPAN, BLE, and other standards-based wireless products
- Custom protocol development to meet your application’s unique needs
Danfoss Power Electronics
Danfoss Power Electronics designs and manufactures inverters and power conversion equipment for industrial applications that requir anywhere from 90kW to multi-mega watt solutions. They recently joined forces with LS Research to perform a series of EMC Tests to qualify their latest Programmable Motor Drive Systems for the global market. These drives range from 90kW to 560kW.
“LS Research had the expertise to provide support and consulting during the development stage of the test plan and they accommodated the highly compressed test scheduling needs for Danfoss. LS Research was able to maximize the available calendar time and gain turn-around efficiencies by performing tests on our samples for continuous 16 hour sessions.
LS Research has a team that is technically qualified, experienced, and very ‘tight’ as a group. They work well with each other. Their data handling and communication processes are second to none. I routinely had draft reports, ready for review on the same day the test was performed. This allowed for a very quick turnaround in generating the final reports to support our targeted completion dates.”
-Abtin Spantman, RF/EMC Engineer, Danfoss Power Electronics
The Technical Challenge
Qualifying the family of products required numerous configurations to be tested, along with multiple operating modes and various available options to fully evaluate the end-product offering. LS Research was selected by Danfoss to test the latest Motor Drive System because of LS Research’s capability, accreditations, reputation and experience in testing motor drives.
For over 20 years LS Research has been providing compliance expertise to industrial markets assisting in the investigation of appropriate test standards, test plan development, troubleshooting/failure analysis, documentation review, and testing for EMC, FCC, Industry Canada, European Union, Australia, Japan, South America and other international countries certifications. As an FCC listed and Industry Canada recognized test site and Conformity Assessment Notified Body for the EMC and R&TTE Directive, with an ISO 1025 Accredited Test Laboratory, LS Research brings both the knowledge and toolsets required for a successful compliance testing engagement.
LS Research offers:
- Extensive Experience in Industrial Product Testing
- 3m Semi-Anechoic Chamber
- 10m OATS (Open Air Test Site)
- EMC Emissions and Immunity Specific Test Equipment
MetaWatch is a design and technology development company focused on reinventing the watch as a relevant mobile companion. Integrating trend-right fashion design with state-of-the-art technology, Meta Watch allows people to stay connected and stay in style while truly mobile and on the go. The company's founders, Bill Geiser and David Rosales, formerly led the Watch Technology Division for Fossil and have been developing smart & connected watches since 2002. MetaWatch is sold as a software development kit (SDK). It enables designers to quickly create 'wearable' applications or to extend the user experience of existing smart phone apps and web services to the wrist.The MetaWatch team chose LSR to help develop critical elements of the embedded firmware. And, LSR continues building on this long-standing partnership by providing customization services for Meta Watch clients.
"While there are many embedded systems houses from which to choose, very few bring the wealth of expertise and value that comes hand-in-hand with LSR. LSR is more than an outsourced supplier; they are our partner."
-Bill Geiser, CEO MetaWatch
The Technical Challenge
To support the hardware requirements for a low power, connectable wireless solution, the Texas Instruments MSP430 ultra low-power processor and CC2560 Bluetooth radio were selected. LSR, a TI Platinum Design Partner, provided the hardware design, Software, CAD, and custom antenna design. The software solution was implemented by LSR and leveraged the Stonestreet One Bluetopia™ Bluetooth stack."
The finished watches consists of two functional solutions: the AU-1000 Analog Digital with dual 16x80 OLED displays and the AU-2000 Digital with a 96x96 reflective display. Both serve to help users manage the regular flow of time, date, email, weather, stock and social media messages by alerting and displaying the information simply on the watch unit.
The SDK has proven popular in the development community with designers already working on additional solutions using the open source platform. The message-based protocol over Bluetooth Serial Port Profile (SPP) has shown to encourage rapid custom development.
LS Research has been developing solutions for the consumer market since 1980. From high volume wireless toys to home automation and security, we have worked with companies to develop low-cost reliable wireless solutions for their customers.
Whether RF4CE, Bluetooth®, Wi-Fi, other popular wireless protocols or even custom wireless protocol development, our experience in wireless ensures the most appropriate technology is selected for your application.
With a fully accredited compliance facility on site, we offer full turnkey wireless development with a focus on EMC certification. Our experienced hardware, firmware and custom antenna design engineers ensure that from start to finish, LS Research is providing you the right mix of expertise to bring your wireless concept to market.
LS Research offers:
- A clear understanding of deploying RF into the breadth of consumer applications
- Extensive experience implementing low cost and robust products
- A fully accredited in-house compliance lab for true turnkey development
- Certified modules platforms and gateway products to enable quick time to market
Advanced M2M Smartphone Platform for Darpa
Advances in wireless technologies, networking and associated support electronics have dramatically increased the scope of machine-to-machine communications, moving M2M communication beyond proprietary, unlicensed wireless platforms to systems built on standards-based air and application interfaces and network infrastructure. M2M technologies have evolved along independent paths based on the implemented wireless platform. M2M solutions have been produced for cellular systems and WLAN infrastructures, and as networked wireless short-range devices (SRDs).
The divergent wireless technologies that enabled the expansion of M2M communications have now been merged onto a single platform: the smartphone. Generally, smartphone applications are known for man-machine-interface (MMI) information transfers. But one can draw application parallels between the MMI roles of the various subsystems in the smartphone platform and the substantial M2M role in military applications. In the case, the platform provides multi-mode wireless communications among commercial electronic systems that support applications such as appliance control, utility metering, building control and vending.
One such adaption of smartphone technology is LSR’s M2M Core Hardware platform for military applications. Our objective was to leverage the latest smartphone technology into a commodity M2M engine. The resultant hardware platform realizes M2M connectivity for a variety of applications.
The platform is based on the Qualcomm 8-series Snapdragon smartphone chip set, which provides an application processor, cellular modem, wireless connectivity (WLAN/Bluetooth), GPS receiver and configurable M2M interface. The M2M’s configuration flexibility is afforded by an FPGA that provides a means of translating and controlling machine-based data sources,data sinks, on- and off-board sensor inputs, and actuator outputs between the application and the application interfaces, such as UART’s, Secure Digital I/O and general-purpose I/O.
The system architecture is largely centered on Qualcomm’s MSM8x60 processor and its companion ICs, which collectively realize the various forms of wireless connectivity. Unlike a packages smartphone platform, the unpackaged M2M module does not include the normally expected MMIs, such as the LCD display, touchscreen/keypad, camera and direct audio interfaces. Those interfaces are instead broken out to 0.5-mm-pitch headers for users who mayemploy external devices. The RF interfaces are available as coaxial connections using miniature U.FL-type connectors for flexibility in antenna selection and application.
The architecture comprises specific functional blocks that adhere to the flexibility we were looking. The application processor is a Qualcomm asynchronous I.5-GHz SMP dual-core Scorpion, based on the ARM V.7 Cortex instruction set, that supports Android and other operating systems. One core is committed to applications and the other to wireless connectivity functions. The memory systems supports up to 2 Gbytes through a 333-MHz ISM or 266-MHz LPDDR2 interface.
The app processor is enhanced by Qualcomm’s Adreno 220 2-D graphics engine, supporting up to a 16-Mpixel external camera interface and an external 24-bil WSXGA LCD. Advanced graphics features include 3-D support, 1080p HD video and dual-screen support through an HDMI output.
The hardware platform supports the common cellular telephone bands associated with the CDMA, UMTS and GSM standards. This coverage is achieved through the combination of the cellular modem and air-interface support processor, plus companion radio frontend circuits. Data service speed up to 14 Mbits/second is realized through the HSPA+ modem.
Wireless LAN support for IEEE 802.11b/g/n is realized by the processor working in concert with the WCN1214 WLAN radio. Bluetooth (BT 3.x +HS, Bluetooth 4.0/LE) is supported through the addition of a WCN2243 Bluetooth radio IC.
The processor includes a GPS receiver/engine that implements gpsOne, Qualcomm’s version of Assisted-GPS. The engine can operate as a standalone GPS receiver or in A-GPS mode.
MMI breakout connectors are available for input devices such as touchscreens and keypads. The standard audio outputs are broken out to support microphones, speakers and direct line audio I/O. The audio interface supports audio features such as noise/echo cancellation and multimedia features such as Dolby 5.1 Surround.
On-board physical sensors are included in smartphone platforms to assist in MMI functions and other general applications normally associated with smartphones. Examples of such sensors include accelerometers and gyroscopes for display orientation/gaming, magnetometer compasses and barometric pressure sensor-based altimeters for navigations, and ambient light/proximity sensors for display brightness adjustments and smart-power management.
A low-power FPGA, such as the Microsemi/Actel Igloo AGL125-AGL400 series, manages the standard wires interfaces that connect to the applications processor. The FPGA affords flexibility in the interfacing of data sources/sinks and sensors, and offers capability for enhanced power management control.
The Snapdragon processor is highly optimized for power management in the support of its feature set. The FPGA, however, enables external power management of the chip set in terms of low-duty factor operation through automatic periodic-operation timers or through the use of a real-time clok (RTC) and time-of-day scheduling techniques.
RTC functions can be further supported through the use of the onepulse/second timing reference and NMEA 0183 messaging provided by the GPS engine.
The interface FPGA also supports an independent nonvolatile memory to accumulate and store sensor/machine data when the system is inactive. This allows the lowest-power operations while maintaining sensor/machine connectivity, without activating the smartphone processor.