DASH7 Webinar March 18th (RTLS)

Posted Posted in Events, News

The DASH7 webinar of March 18th was centered arrpound Real time location systems (RTLS) and contained 2 parts, both parts are recorded.

  1. Research study on SDR (Software Defined Radio) by Noori Ben Lam from Antwerp - Imec - IDLAB
  2. Use case presentation on RTLS by Michael Andre from Wolt (powered by Wizzilab)

To follow the next webinar, please follow us on LinkedIn or sign up for the newsletter.


close up photo of batteries

Battery lifetime matters, choose your network wisely!

Posted Posted in Features

The business case

Low Power versus Ultra low Power, these are popular statements used by sensor manufacturers, it makes sense, as from various reports it becomes clear battery lifetime is the most important aspect when considering a sensor beside functionality of course. However, the type of wireless network has an enormous impact on the sensor power consumption, making the selection of the LPWAN wireless network protocol a critical factor to consider when developing your application.

Many articles are written nowadays around the subject of successful IIoT implementations and lack of it. For one, the business case plays an important role and understanding the IIoT inter-dependability of sensors, network, gateways and IoT infrastructure and how they influence performance such as battery consumption  and consequently the business case is an essential part of potential success. 

Power consumption and related battery lifetime has an enormous impact on the business case, for some sensors this would be the end of life and for others it would result in battery replacements costing both time and money. 

As the network impacts the battery lifetime in multiple ways it is important to really understand network pro’s and con’s and its role in the ecosystem rather than taking the network selection for granted based on characteristics that seem to be important however have a negative effect on the business case. The tradeoff between range and battery consumption is one of these aspects to review closely. 

Net capacity of the battery

The most important aspects determining the net capacity of the battery are peak current level, peak duration, sleep current level, recovery time between peaks and ambient temperature. The peak level and peak duration are both influenced by the choice of network technology and the network deployment. 

There is a strong relation between transmission power and the peak current height, the power amplifier of the radio consumes a lot of energy. DASH7 nodes can scale their TX power when the link budget to their prefered gateway is comfortable enough, resulting in energy savings (and less interference as well) on the network as a whole.

A higher data rate means a shorter peak duration and thus less battery consumption. DASH7 offers 3 data rates: high (166.7 kb/s), normal (55.6 kb/s) and lo-rate (9.6 kb/s). A higher data-rate implies a lower range, therefore it is a tradeoff which depends on the use case. The lowest data rate of DASH7 is still higher than the highest data rate offered by for example LoRaWAN (SF7, 5.468  kb/s) and 10 times higher than a more typical data rate of LoRaWAN (SF10, in EU). 

As this is a trade-off, this implies that the maximum range of DASH7 is shorter. For these mid-range scenarios the higher data rates does result in serious energy consumption savings.

The network infrastructure deployment also influences the above, a denser gateway deployment allows the use of a faster data rate which is beneficial for the peak duration and thus again less battery consumption. Also, a denser gateway deployment allows downscaling the TX power, which in turn impacts the peak height. 

In many scenarios it is more cost efficient to deploy a denser gateway network, compared to the cost of more frequent sensor device or battery replacements in the field. Especially when a large number of sensors are expected, a high density network has several advantages in both power savings and latency. In this case the lower range of DASH7 is not an issue anymore. 

Other factors to consider to extend battery lifetime

Frequency of the peaks are partly determined by the application and/or environment. The impact of these peak loads result in a decrease of the net battery capacity compared to the nominal capacity, and the impact is typically not linear. This can be significant, for example 50% loss in capacity. This can be improved by integrating a supercapacitor in the design which can for a large part take the burden of the peak loads from the batteries, which allows to raise the net capacity, and thus increase the lifetime significantly. 


To summarize, it is important to fully understand the pro’s and con’s of a network protocol, there are many tradeoffs to consider and it highly depends on the application what protocol is best suited. The DASH7 Alliance produced a whitepaper “considerations for low-power communication in industrial IoT applications” highlighting technical differences and can be downloaded on the DASH7 Alliance website. (Link)


DASH7 Webinar January 21st

Posted Posted in Events


The DASH7 webinar of January 21st contained 3 parts, all 3 parts are recorded.

  1. Introduction by Michael Andre, president of the DASH7 Alliance to present the 2021 ambitions of the Alliance. PART 1
  2. Use case presentation by Jitter on interiorscapers. PART 2 Use case from Jitter can also be found on our use case section.
  3. Panel discussion with 3 specialist on DASH& and wireless communication. PART 3

To follow the next webinar, please follow us on LinkedIn or sign up for the newsletter.


Jitter joins the Alliance

Posted Posted in Members, News

Looking closer at the new DASH7 Alliance member “JITTER”

Last month we welcomed Jitter to the DASH7 Alliance, let’s look a bit closer at this interesting company and find out what the partnership brings for both parties.

Jitter is a unique company specialized in quickly realizing high quality hardware and software solutions. They can take a concept from specification to production, allowing their customers to focus on their domain. Jitter covers the full spectrum from idea to product and has helped many startups to bring their ideas to life or developed customized data acquisition and analysis setups.

The success of Jitter highly depends on developing high quality solution with the latest technology available.

The DASH7 Alliance is composed of university researchers, innovative companies, and individuals that want to make a difference in helping people connect wireless devices using battery operated transmitters that operate for multiple years between battery replacements. Joining the DASH7 Alliance helps to build the ecosystem around usage and implementation of the open source protocol.

Jitter has already used the DASH7 open standard in multiple projects, according to Ingmar Jager, co-founder of Jitter, one of the reasons for joining the alliance is to dive deeper into the specification and contribute to the development as well. Additionally, the requirement for industrial IoT solutions is increasing rapidly and the DASH7 Alliance is a good platform to position Jitter in this niche market space.

Beside this, Ingmar expresses that the existing members of the Alliance are very interesting companies and he looks forward to interacting and explore new partnerships with mutual benefits.

On the technology side, DASH7 is a very interesting IoT protocol for developers like Jitter, DASH7 is highly flexible and completely open, making it applicable for many different product solutions.

Ingmar adds that DASH7 distinguishes itself from other protocols with a higher range compared to WIFI, Bluetooth or Zigbee, a higher bit rate compared to LoRaWAN and lower cost compared to 4G / LTE. On top of that it is extremely low power making it easier to come with a low-cost solution.

Michael André, president of the DASH7 Alliance welcomes Jitter and sees it as a real contribution to the ecosystem. A company like Jitter, who has already used the technology, can accelerate global usage and at the same time contribute to the development of the specification going forward.

To summarize, the combination of a wireless network protocol like DASH7 and a solution provider like Jitter are an ideal match to drive the growth of a sustainable ecosystem based on open source software innovation.

Crowdscan joins the Alliance

Posted Posted in Members, News

In November Crowdscan has joined the DASH7 Alliance. Crowdscan is a startup from Antwerp, Belgium and is a spin-off of the University of Antwerp and Imec. Based on six years of research at the University of Antwerp and imec, CrowdScan has developed a system to measure crowd densities without using camera images, mobile phone data or other privacy-sensitive information.

They developed a wireless crowd density system that predicts size and density of large crowds. The capacity is measured in terms of humans per m². Their measurement methodology is based on radio frequency signals using #DASH7 to derive crowd size information.

They do not make use of camera images or any type of device that needs to be connected to an individual, this makes it fully anonymous and privacy non-intrusive.

More info on Crowscan and their products can be found on their website.

Dash7 Virtual Meeting September 23th

Posted Posted in Events


17.00 Introduction – Maarten Weyn
17.05 Use case; Vestfold Audio AS, Alert system for human wellbeingTrond Enger
17.25 Q&A on Vestfold use case
17.35 Why and when to select DASH7, DASH7 top 5 characteristics
Frank Gielissen

17.55 Q&A on Top 5 characteristics
18.05 Q&A on DASH7
18.15 Closing          Maarten Weyn

You can rewatch the whole session online: https://www.crowdcast.io/e/dash7-virtual-meeting

Or the individual presentations using the links in the agenda.

LPWAN vs WirelessHART

Posted Posted in Features

LPWAN compared to WirelessHART

The concept of Industry 4.0 includes both Internet of Things (IoT) and local (short-range) networks. Adoption of wireless sensor network (WSN) technologies is driving growth for the industrial Internet of Things (IIoT). Short range systems make up for the majority of connected devices however, the long-range systems like LPWAN (Low Power Wide Area Network) is are expected to increase rapidly.

Short range systems like WirelessHART or ISA100 are often used for real-time tasks and are focused on the needs for process automation like low and deterministic latency.

Long range systems like LPWAN are used to increase datapoints by deploying a large number of connected devices and focus on scalability, long range and low cost.

LPWAN is ideal for scalability, low cost and volume

WirelessHART uses the 2.4 GHz frequency and most LPWAN technologies like LoRaWAN or DASH7 use the 868 MHz frequency in Europe (920 MHz in the US). Due to the lower frequency (and data rate), LPWAN has a much longer range.

Schermafbeelding 2020-04-02 om 16.37.29

To cope with the smaller range while still limiting the number of gateways and to improve network reliability, WirelessHART uses a multi-hop mesh network, whereas LPWAN uses a star or star-of-stars network.

A mesh network routes data over neighboring devices to reach a gateway, which significantly increases battery usage for devices in a WirelessHART network.

Mesh networks require constant synchronization between the nodes to ensure correct timing and routing and need a central network manager which adds complexity and cost to the implementation of WirelessHART. An LPWAN network on the other hand is asynchronous which is less complex but is not able to give hard real-time or throughput guarantees.

Schermafbeelding 2020-07-29 om 10.32.04

Energy consumption is higher for WirelessHART compared to LPWAN devices and to meet the industry standards related to battery lifetime, the WirelessHART transmitters need large batteries resulting in large and costly devices. The transmitter is often separated from the measurement devices, whereas IoT devices generally consist of the sensor, battery and radio transmitter in one, which reduces the cost of devices significantly.

IoT is inherently an ecosystem where no single technology alone can provide a complete solution. Interoperability between devices of different vendors and even different network protocols function within one IIoT platform.

In today’s short-range networks there are a few dominant players were a system is often built up using one brand.

To summarise WirelessHART is ideal for low latency and continuous measurements whereas LPWAN is ideal for scalability, low cost and volume. Both are part of the continuous efforts to increase automation and will increase safety and efficiency on the long term, serving different application needs.

We welcome the Eclipse Foundation

Posted Posted in News

The Eclipse Foundation joins the DASH7 Alliance

We are happy to welcome the Eclipse Foundation as a new member of the DASH7 Alliance.

Due to multiple benefits for both organizations, a mutual membership was exchanged between the DASH7 Alliance and the Eclipse Foundation. Both organizations share a focus on community-driven innovation and values such as openness and vendor-neutrality. This mutual membership is only the first step in an ongoing strategic collaboration between our organizations.

As the leading open source community within the IoT industry, the Eclipse IoT Working Group plays a vital role within the IoT ecosystem and therefore is of interest to other members of the Dash7 Alliance as well. Whether it is hardware related like sensor and gateway manufacturers or IoT platform development, one of the expected benefits of this mutual membership is joint participation in industry collaborations to develop common open IoT platforms for Industrial IoT, Industry 4.0, Edge Computing, and more.

Additionally, the DASH7 Alliance recognizes the added value in moving open source reference implementations of the specification and conformance test suites as projects under the Eclipse IoT umbrella.

In short, the combination of a wireless network protocol like DASH7 and the well-governed Eclipse IoT open source projects are an ideal match to drive the growth of a sustainable ecosystem based on open source software innovation.

Virtual Meeting May 12th

Posted Posted in Events

Our Virtual Meeting on May 12th 4-5.15 pm CET has passed.


  • 16:00 Introduction
  • 16:05 Related DASH7 research from the IDLab research group of the  University of Antwerp/imec – Prof. Maarten Weyn
  • 16:35 Technical presentation and discussion on how to configure the DASH7 Access Profile – Yordan Tabakov
  • 17:15 Closing

Participants can pose questions during the event or send them prior to info@dash7-alliance.org

Watch the recording at https://youtu.be/lDrjsGTHabY

2020 Spring Virtual Meeting

Posted Posted in Events

This meeting is over, you can still watch the crowdcast at https://youtu.be/QMum9ZgjWsM

Join our Virtual Meeting on February 7th 4-5.15 pm CET.


  • 16:00 Introduction – Maarten Weyn
  • 16:05 Aloxy manual Valve indicator using DASH7 for the chemical industry – Glenn Ergeerts
  • 16:25 Q&A on Aloxy use case
  • 16:30 Wizzilab parking lot sensor using DASH7 – Michael Andre
  • 16:50 Q&A on Wizzilab use case
  • 16:55 20 Q&A on DASH7
  • 17:15 Closing

Participants can pose questions during the event or send them prior to info@dash7-alliance.org

Register free for the crowdcast: https://www.crowdcast.io/e/dash7-alliance-virtual