@ThingsExpo Authors: Elizabeth White, Pat Romanski, Sematext Blog, Ed Featherston, Liz McMillan

News Feed Item

Panasonic Develops Industry-First*1 Multi-Mode Wireless Communication Technology for Sensor Networks

Panasonic Corporation today announced that it has developed a new wireless communication technology for M2M (Machine-to-Machine) sensor networks[1], where devices communicate with each other in an autonomous way without human intervention.

Prototype Module employing Developed Wireless Technologies (Photo: Business Wire)

Prototype Module employing Developed Wireless Technologies (Photo: Business Wire)

This technology is based on a single chip of LSI that can simultaneously detect multiple wireless communication standards, which differ from one country to another or in the target applications. Multiple communication modes are integrated by sharing the software of same functions and reducing the amount of signal processing in microcomputer. As a result, engineers can design and develop wireless modules that are small but can operate for an extended period of time. The newly-developed technology makes it easier to connect disparate devices and helps accelerate the spread of wireless sensor networks[2], contributing to achieving a society with a safe, secure, convenient and comfortable living environment.

Currently, different modes of wireless communication are used in different countries and regions for connecting devices to sensor networks. The new multi-mode wireless communication technology integrates multiple receiver circuits required for each individual wireless mode into a single one, enabling devices to be connected easily and stably each other regardless of operation frequencies and wireless standards. With a smaller area, the same as the receiving part of conventional single-mode wireless chip, multi-mode wireless LSI can support up to three different wireless modes at a time. The new LSI helps create a small and power-saving wireless module that will continue to operate for around 20 years on the battery.*2

The new technology has the following features.
  1.   Ability to be used in various devices and/or machines, independent of wireless standards and operation frequencies.
2. Reduction in the receiver power consumption of the whole module by 55% (compared with Panasonic’s existing products) that enables 20-year battery operation*2.
3. A small multi-mode wireless LSI having the same size as a conventional single-mode one, enabling downsizing of wireless modules.
This multi-mode wireless communication technology includes the following technologies.
  1.   Multi-mode technology that reduces both power consumption and memory capacity requirement based on frequency detection by hardware and unified control by common software for multiple wireless operation modes.
2. Receiver power reducing technology that enables 20-year battery operation while supporting multiple wireless modes, which is achieved by intelligently controlling voltage supplies and generating high rate internal clocks from low rate clocks to minimize circuit current.
3. Wireless LSI miniaturizing technology which reduces the size of coils in oscillator circuits and eliminates filters used in analog-to-digital converters.

Panasonic holds 26 Japanese patents and 19 overseas patents (including pending) related to this technology.

Development of this technology was supported in part by the "Research and Development for Expansion of Radio Spectrum Resources" program of The Ministry of Internal Affairs and Communications, Japan. A field test starts today at The ICT Incubation Laboratory in Research Center for Advanced Science and Technology, the University of Tokyo.



*1:   As of March 28, 2014, according to Panasonic data.
*2: When used in a smart meter or HEMS child device and receives and transmits information every 30 seconds using a 1200mAh industrial-use lithium-ion battery.

More on the Technology

1. Multi-mode technology that reduces both power consumption and memory capacity requirement based on frequency detection by hardware and unified control by common software for multiple wireless operation modes.

In wireless sensor networks, FSK[3] modulation is normally used. Conventional FSK demodulators, such as Arctan demodulators[4], detect the operation frequency by monitoring received signals in time domain and then demodulate based on the detected frequency. In order to receive multi-mode signals of different frequencies or based on different standards, a receiver needs to eliminate noise in accordance with bandwidth of each mode, thus a dedicated wireless LSI is required for each wireless mode.

Panasonic developed technologies to detect all frequency components simultaneously within multiple modes by employing Short-time DFT[5], which can also determine the data rate with respect to each mode by hardware and then demodulate by achieving an optimum control to the data rate. In addition, instead of switching among multiple software control modules each corresponding to one transfer rate, a unified software module for all modes is newly implemented. These technologies enable a single LSI to support multiple wireless modes.

2. Receiver power reducing technology that enables 20-year battery operation while supporting multiple wireless modes, which is achieved by intelligently controlling voltage supplies to minimize circuit current, and by generating high rate internal clocks from low rate clocks.

In conventional wireless receivers, a constant voltage is used for every circuit to guarantee a whole stable operation regardless of operation frequencies or temperatures. However, to maintain such a constant voltage a strong enough supply voltage has to be supplied all the time. This causes waste when a lower power supply is sufficient.

Panasonic developed an intelligent power supply technology which controls a voltage dynamically for a circuit according to its frequency, temperature and process variations. The dynamic control minimizes current consumption of a circuit. As an example, for the high frequency oscillator circuit which consumes the most of current, it reduces by 70% compared to our previous design.

Also a high SNR[6] is required for an analog-to-digital converter (ADC)[7] to process received signals. Conventionally this is realized by a high rate sampling circuit which picks out pulses from a 100MHz clock. But such a circuit consumes much power.

Panasonic developed a technology to generate high rate sampling pulses from a low rate clock by using its rising edge effectively. Furthermore, Panasonic developed a SAR-ADC[8] which can realize a high SNR equivalent to that generated by a conventional ΔΣ ADC[9], but with lower power consumption. Compared to our previous design it has been reduced by 60%.

3. Wireless LSI miniaturizing technology which reduces the size of coils in oscillator circuits and eliminates filters used in analog-to-digital converters.

Conventional oscillator circuits require large coils to minimize the increase of circuit current due to transistor performance variations. The newly developed intelligent power supply control technology compensates for the transistor variations and enables use of twice the oscillation frequency. This makes a small-sized oscillator circuit to be realized, which has a smaller coil and a divide-by-two circuit both with low current consumption. In addition, instead of conventional analog-to-digital converters of the ΔΣ ADC that have been necessary to achieve required performance, a SAR-ADC is adopted in the new technology which makes a compact filter-less analog-to-digital converter possible.


Technical Terms:

[1] M2M (Machine to Machine) sensor network
    A network where devices in it communicate with each other without human intervention. The devices may send information, make control and provide services to each other automatically.
[2] Wireless sensor network
A wireless system where various sensor data are transmitted through wireless communications. The sensor data may include temperature, humidity, brightness and power consumption at home.
[3] FSK
Frequency Shift Keying. The most common protocol of digital modulation.
[4] Arctan demodulation
One scheme of FSK demodulation, which detects a phase shift by calculating the arctangent of a signal. “Arctan” is abbreviated expression of arctangent.
[5] Short-time DFT
Short-time Discrete Fourier Transform, which can be used for a simple FSK demodulation.
[6] SNR
Signal to Noise Ratio, which represents the ratio of a signal power to a noise power.
[7] ADC
Analog to Digital Converter, a circuit that converts analog signals to digital signals.
Successive Approximation Register – Analog to Digital Converter, an ADC which converts an incoming signal one bit by one bit through using a binary search algorithm.
[9] ΔΣ ADC
Delta-Sigma Analog to Digital Converter, which integrates the difference between consecutive data and detects its error precisely to realize precise ADC.

About Panasonic

Panasonic Corporation is a worldwide leader in the development and engineering of electronic technologies and solutions for customers in residential, non-residential, mobility and personal applications. Since its founding in 1918, the company has expanded globally and now operates over 500 consolidated companies worldwide, recording consolidated net sales of 7.30 trillion yen for the year ended March 31, 2013. Committed to pursuing new value through innovation across divisional lines, the company strives to create a better life and a better world for its customers. For more information about Panasonic, please visit the company's website at http://panasonic.net/.

More Stories By Business Wire

Copyright © 2009 Business Wire. All rights reserved. Republication or redistribution of Business Wire content is expressly prohibited without the prior written consent of Business Wire. Business Wire shall not be liable for any errors or delays in the content, or for any actions taken in reliance thereon.

@ThingsExpo Stories
SYS-CON Events announced today that Niagara Networks will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Niagara Networks offers the highest port-density systems, and the most complete Next-Generation Network Visibility systems including Network Packet Brokers, Bypass Switches, and Network TAPs.
In an era of historic innovation fueled by unprecedented access to data and technology, the low cost and risk of entering new markets has leveled the playing field for business. Today, any ambitious innovator can easily introduce a new application or product that can reinvent business models and transform the client experience. In their Day 2 Keynote at 19th Cloud Expo, Mercer Rowe, IBM Vice President of Strategic Alliances, and Raejeanne Skillern, Intel Vice President of Data Center Group and ...
Data is the fuel that drives the machine learning algorithmic engines and ultimately provides the business value. In his session at Cloud Expo, Ed Featherston, a director and senior enterprise architect at Collaborative Consulting, will discuss the key considerations around quality, volume, timeliness, and pedigree that must be dealt with in order to properly fuel that engine.
Virgil consists of an open-source encryption library, which implements Cryptographic Message Syntax (CMS) and Elliptic Curve Integrated Encryption Scheme (ECIES) (including RSA schema), a Key Management API, and a cloud-based Key Management Service (Virgil Keys). The Virgil Keys Service consists of a public key service and a private key escrow service. 

The best way to leverage your Cloud Expo presence as a sponsor and exhibitor is to plan your news announcements around our events. The press covering Cloud Expo and @ThingsExpo will have access to these releases and will amplify your news announcements. More than two dozen Cloud companies either set deals at our shows or have announced their mergers and acquisitions at Cloud Expo. Product announcements during our show provide your company with the most reach through our targeted audiences.
Fact is, enterprises have significant legacy voice infrastructure that’s costly to replace with pure IP solutions. How can we bring this analog infrastructure into our shiny new cloud applications? There are proven methods to bind both legacy voice applications and traditional PSTN audio into cloud-based applications and services at a carrier scale. Some of the most successful implementations leverage WebRTC, WebSockets, SIP and other open source technologies. In his session at @ThingsExpo, Da...
Fifty billion connected devices and still no winning protocols standards. HTTP, WebSockets, MQTT, and CoAP seem to be leading in the IoT protocol race at the moment but many more protocols are getting introduced on a regular basis. Each protocol has its pros and cons depending on the nature of the communications. Does there really need to be only one protocol to rule them all? Of course not. In his session at @ThingsExpo, Chris Matthieu, co-founder and CTO of Octoblu, walk you through how Oct...
SYS-CON Events announced today that Embotics, the cloud automation company, will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Embotics is the cloud automation company for IT organizations and service providers that need to improve provisioning or enable self-service capabilities. With a relentless focus on delivering a premier user experience and unmatched customer support, Embotics is the fas...
The Internet of Things (IoT), in all its myriad manifestations, has great potential. Much of that potential comes from the evolving data management and analytic (DMA) technologies and processes that allow us to gain insight from all of the IoT data that can be generated and gathered. This potential may never be met as those data sets are tied to specific industry verticals and single markets, with no clear way to use IoT data and sensor analytics to fulfill the hype being given the IoT today.
More and more brands have jumped on the IoT bandwagon. We have an excess of wearables – activity trackers, smartwatches, smart glasses and sneakers, and more that track seemingly endless datapoints. However, most consumers have no idea what “IoT” means. Creating more wearables that track data shouldn't be the aim of brands; delivering meaningful, tangible relevance to their users should be. We're in a period in which the IoT pendulum is still swinging. Initially, it swung toward "smart for smar...
@ThingsExpo has been named the Top 5 Most Influential M2M Brand by Onalytica in the ‘Machine to Machine: Top 100 Influencers and Brands.' Onalytica analyzed the online debate on M2M by looking at over 85,000 tweets to provide the most influential individuals and brands that drive the discussion. According to Onalytica the "analysis showed a very engaged community with a lot of interactive tweets. The M2M discussion seems to be more fragmented and driven by some of the major brands present in the...
The Quantified Economy represents the total global addressable market (TAM) for IoT that, according to a recent IDC report, will grow to an unprecedented $1.3 trillion by 2019. With this the third wave of the Internet-global proliferation of connected devices, appliances and sensors is poised to take off in 2016. In his session at @ThingsExpo, David McLauchlan, CEO and co-founder of Buddy Platform, discussed how the ability to access and analyze the massive volume of streaming data from millio...
SYS-CON Events announced today that Pulzze Systems will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Pulzze Systems, Inc. provides infrastructure products for the Internet of Things to enable any connected device and system to carry out matched operations without programming. For more information, visit http://www.pulzzesystems.com.
WebRTC has had a real tough three or four years, and so have those working with it. Only a few short years ago, the development world were excited about WebRTC and proclaiming how awesome it was. You might have played with the technology a couple of years ago, only to find the extra infrastructure requirements were painful to implement and poorly documented. This probably left a bitter taste in your mouth, especially when things went wrong.
Successful digital transformation requires new organizational competencies and capabilities. Research tells us that the biggest impediment to successful transformation is human; consequently, the biggest enabler is a properly skilled and empowered workforce. In the digital age, new individual and collective competencies are required. In his session at 19th Cloud Expo, Bob Newhouse, CEO and founder of Agilitiv, will draw together recent research and lessons learned from emerging and established ...
Enterprise IT has been in the era of Hybrid Cloud for some time now. But it seems most conversations about Hybrid are focused on integrating AWS, Microsoft Azure, or Google ECM into existing on-premises systems. Where is all the Private Cloud? What do technology providers need to do to make their offerings more compelling? How should enterprise IT executives and buyers define their focus, needs, and roadmap, and communicate that clearly to the providers?
One of biggest questions about Big Data is “How do we harness all that information for business use quickly and effectively?” Geographic Information Systems (GIS) or spatial technology is about more than making maps, but adding critical context and meaning to data of all types, coming from all different channels – even sensors. In his session at @ThingsExpo, William (Bill) Meehan, director of utility solutions for Esri, will take a closer look at the current state of spatial technology and ar...
You have great SaaS business app ideas. You want to turn your idea quickly into a functional and engaging proof of concept. You need to be able to modify it to meet customers' needs, and you need to deliver a complete and secure SaaS application. How could you achieve all the above and yet avoid unforeseen IT requirements that add unnecessary cost and complexity? You also want your app to be responsive in any device at any time. In his session at 19th Cloud Expo, Mark Allen, General Manager of...
SYS-CON Events announced today that Streamlyzer will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Streamlyzer is a powerful analytics for video streaming service that enables video streaming providers to monitor and analyze QoE (Quality-of-Experience) from end-user devices in real time.
SYS-CON Media announced today that @WebRTCSummit Blog, the largest WebRTC resource in the world, has been launched. @WebRTCSummit Blog offers top articles, news stories, and blog posts from the world's well-known experts and guarantees better exposure for its authors than any other publication. @WebRTCSummit Blog can be bookmarked ▸ Here @WebRTCSummit conference site can be bookmarked ▸ Here