Munisense goes Africa

Our NP series sound meters open the hunt for poachers in Rwanda using their sound recognition feature. Read more...

Munisense provides online and real-time insight into noise, water quality and groundwater levels. This allows managers and policymakers to measure real-time; remote, reliable and smarter. Thanks to our smart hardware and powerful software platform.


What we do
Our smart city solutions measure noise at events, construction or infrastructure, detect fireworks, or measure water quality parameters. The data is validated, correlated and visualized for you. This high-quality data contributes to well-founded policy decisions.


How we can help
The online insight into, among other things, noise nuisance, water levels and water quality ensures effective control and improvement of the living environment. Thus we integrate measurement, regulation and control in your organization. At low cost and also in places where autonomy for power supply and data communication is of great importance.

Applications

Besides developing products and services, Munisense also handles the operational processes to keep applications running, like network monitoring and maintenance. We also develop OEM (Original Equipment Manufacturer) products. Please find some examples of our projects below:

Leuven Horecasense

The city of Leuven in Belgium limits noise nuisances from nightlife for its citizens and prevent damage to the hearing of the nightlife participants. The city has issued regulations that require establishments that play loud music to limit the sound levels and monitor these levels continuously. Munisense supplied the noise monitoring system to about 100 establishments and provides their management and the city with compliance data. The system consists of a sound meter, a display that shows the real-time sound levels, and an on-line portal to view violations and historical data. For more information please see www.horecasense.nl (in Dutch).

The Wareco Water Data (WWD) is a turn-key service from Wareco Ingenieurs in the field of managing groundwater networks and monitoring groundwater during construction and replacing sewer lines.
Our equipment, cloud platform and services is Wareco's added value to their engineering services.

News

Sustainable smart traffic management

Instead of regulating traffic with traditional traffic management based on traffic flow, along the N208 provincial road in North Holland sensors have been installed to conduct research into air quality and noise.

The province of Noord-Holland uses these sensors to investigate whether there is a relationship between traffic and the measured data and whether the data can be influenced. If the data exceeds a certain limit, the province can make several adjustments to lower the limits. Adjustments such as reducing speed, diverting traffic or extending the green wave.

In November 2021 we installed the sensors along the N208 in Haarlem. The sensors measure the air quality (particulate matter and nitrogen dioxide) and the noise level. This data is linked to traffic data from the National Road Traffic Data Portal (NDW) and the data from the traffic lights on the N208.

The first results are known. The research shows that there is a measurable relationship between noise and traffic (intensity and speed), but not yet with air quality and traffic.

The follow-up study is currently ongoing to see whether a relationship can be discovered between the traffic indicators and the environmental indicators for both noise and air quality. Traffic management measures are also being designed to reduce the measured values. This is better for the environment and the quality of life increases. Examples of this can be: improving traffic flow by minimizing the number of stops, reducing the maximum speed or having parts of the traffic drive via a different route.

As it stands, we will be able to provide you with more information about the final results of this investigation along the N208 after the summer of 2022.

New WHO standard for entertainment venues and events

The World Health Organization (WHO) estimates that over one billion young people globally are at risk of hearing loss due to sound exposure in recreational settings. The risk of permanent hearing injury due to unsafe listening is both avoidable, and costly.

In the face of this growing threat, not only governments and public-health agencies but all those involved in the creation, distribution and amplification of music have a duty of care in understanding the sound levels to which audiences and consumers are being exposed, and creating environments that facilitate safe listening.

To address this, WHO, as part of their Make Listening Safe initiative, developed the Global standard for safe listening venues and events which provides a common understanding of safe listening in entertainment venues and events. The Standard comprises six “features” which, when implemented, allow audience members around the world to enjoy amplified music with protection of their hearing, while also preserving the integrity of the artistic experience.

The standard - as described in the WHO publication - consists of only six features. The first two are an upper limit of <100 dB LAeq, 15 min and live monitoring of sound levels.

Horecasense seamlessly fits in when implementing this WHO standard: for ear-safe entertainment venues and events.

Our Horecasense system has been providing 'ear-safety' for years in clubs, bars and entertainment venues in both the Netherlands and Belgium. In Leuven (B), all catering entrepreneurs who use amplified sound are obliged to use Horecasense.

Would you also like to know more about safe sound for your audience? We look forward to tell you more about it. Contact us on +31 (0)71-711 46 23.

Of course we have set up an informative website for you. Here you can also find all kinds of information about this: Horecasense



Fighting night noise with technology

Can nighttime noise be registered without anyone reporting? And, could you even reduce it without involving the police?

Smart noise meters, an app for residents and nudging techniques are used to combat night noise in the busy Naamsestraat in Leuven (B).
Nudging techniques to reduce or prevent noise include dimming street lighting or projecting messages onto the street, such as 'People sleep here'.

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The project with the City of Leuven:

What do we investigate?


We want to know how we can reduce disturbing street night noise in a non-repressive way. So by avoiding the problem. For this purpose, data is collected on nighttime noise that is used to better tackle the problem.

Naamsestraat as a case

Leuven is a real nightlife city. Nice of course, but it also brings nighttime noise with it. In 2020, the Leuven police received 2,639 reports of residents who were disturbed in their sleep. That is not at all pleasant, especially for those who have to arrive at work fresh and cheerful the next day. Research also shows that persistent noise pollution can cause health problems.

Helena Schulpé, coordinator of the night noise project: Night noise is mainly a problem in the 'trafficking streets'; streets that people use to go back home after their night out. The investigation is taking place in one of them – Naamsestraat.

Sound meters

We work in two phases. First we mapped out the problem as well as possible. That is why there are seven sound meters in the strip between the Heilige Geest College and the STUK Arts Center. They do not record conversations – that is prohibited by law – but they do analyze every nighttime noise: what is the volume, how high or how low does it sound, how long does it take, does it come from traffic, from people, from music? … ?

At the same time, we also asked residents to let us know via an app when they experience nighttime noise. Not every sound is disturbing. A very loud noise that lasts only a very short time won't necessarily wake you up. Conversely, a fairly quiet, low and long-lasting sound - bass sounds for example - can keep you from sleeping. By combining the results of the noise analysis with the reports from the residents, we can determine exactly what disturbing night noise is. And as soon as we know that, we will investigate in a second research phase what effect nudging techniques have on that nighttime noise.

‘‘Suppose one of the sound meters picks up noise at night, then we can, for example, dim the public lighting’

Silent nights
Various nudging techniques have been tested from January to December 2022. With real time nudges we try to tackle the problem as soon as it occurs. Suppose one of the sound meters picks up noise at night, then we can, for example, dim the public lighting or have it change colour. After all, research shows that soft or warm light calms people. Or we project a message on the floor, 'Please keep it quiet in this area' or 'People sleep here'. Or even switch on the lighting in some houses. This makes the noise makers aware that they are waking people up from their sleep.

Other nudges are not real time, but try to avoid the night noise. Due to the many buildings of the KU Leuven, Naamsestraat seems a bit deserted at night and revelers may get the idea that making noise is not a problem. That is why we want to give the street a more inhabited impression: plant more greenery, illuminate dark corners, place works of art, etc. This way passers-by see that it is a pleasant residential area, and hopefully that will encourage them to behave calmly.

Predicting night noise

But we're going to do more than just test nudging techniques. For example, we will also examine the effect of weather conditions or events on nighttime noise. For example, we will be able to predict better and better when the risk of night noise is high, and then we can have the police patrol more or deploy extra stewards. And of course the city and the police will continue to focus strongly – in addition to this research – on raising awareness about night noise.

Measuring is knowing

Because we will only monitor the noise in the first phase of research, and also intervene in the second phase, we can very well determine what has an effect and what does not. Does it help to project a message or adjust the lighting? Is a cozy environment the solution? Or should we let the police patrol more? So far it's gambling, but with this research we'll find out what really works.


GLIMI: understandable insight into noise for citizens

For citizen participation comprehensible information is needed.

This also applies to the continuously changing sound landscape that citizens experience.

The calculated annual average noise levels do not match the residents' own noise experience.

The GLIMI project makes the sound environment measurable, understandable and manageable. And residents can get started themselves. Residents gain insight into the quality of the local sound environment in an intuitive and accessible way. And the causes of the possible nuisance, which can also be reported by themselves.

In addition to sound levels, GLIMI is also based on how this is experienced (soundscape method) and with which sounds the environment is burdened. All this is displayed in an intuitive way on the online dashboard.

Read the GLIMI newsletter (Dutch) in case you need more information on GLIMI in English, please contact us. We are happy to inform you!

GLIMI

Salinization: an increasingly common problem

97.5% of all water on earth is saline. Unfortunately, it happens more and more that saline water causes problems on land. The process is called salinization and can happen in groundwater, surface water like rivers/streams or lakes, or in the soil.


This salinization can occur in groundwater, surface water or on land due to, among other things, rising sea levels combined with subsiding land and falling groundwater
disturbs the balans between saline and fresh water. The pressure of the saline sea water increases while the counter pressure of the fresh
water decreases. Lower lying lands, and particular polders become prone to artesic brackish groundwater surfacing.

Irrigation, where a substantial part of the water evaporates, leaves salt behind. The more saline the water or the more arid the conditions,
the larger this effect. Also groundwater, specifically fossile groundwater, contains minerals that get deposited on the soil, resulting in salinization.

In addition, infrastructural projects can cause permanent disturbances between layers of saline, brackish and fresh groundwater present in the soil.

The influx of seawater into our waterways due to reduced rainwater levels also has a direct effect on drinking water production and irrigation of agricultural areas.

In short, it is important for agriculture, construction works, drinking water production and for nature in general that the degree of salinization and the seasonal and weather influences are properly mapped out.

For groundwater, this also concerns the relationship between groundwater levels and the degree of salinization. Because salt and fresh water do not mix well, it is often important to measure at different depths to see the salt/fresh gradient.

With the QU series of water quality sensors, salinity can be measured on a large scale. Together with the LV series of level meters, a complete image can be made of the salinization of groundwater.

More news

About Munisense

Munisense develops, supplies and manages innovative measurement solutions for businesses and governments. Smart city solutions that give stakeholders direct online insight into noise, water quality and water levels. The information is available online at any time for visualization, analysis or periodic reports. Thus managers and policymakers can measure in real time; remote, reliable and smarter.

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Contact information

Munisense B.V.
Touwbaan 38, A0.08
2352 CZ Leiderdorp
The Netherlands