The construction site of the future

No. The sensors transmit to their own collection units (gateways) on a wireless network with long range and very low power consumption (LoRaWAN), and from there on their own 4G or 5G subscription, completely separate from the construction site and contractor's network. This makes the setup simple because nothing needs to be opened in your IT, and it keeps the solution running even if the site's network changes along the way.

Because the division of panels and groups determines what can be measured afterwards. If shed power, cranes, site lighting and building power are on the same group, the consumption cannot be separated, no matter how good the meters are, and the documentation ends up as one total number with no action value. If the division is designed from the start, the meters are correctly located from day one, the panels are dimensioned for the actual need instead of a loose safety allowance, and you avoid retrofitting meters in the middle of construction. This gives both the best price for the installation and measurements that can be used for something.

First by measuring: consumption is divided into shed power, cranes, site lighting and building power, so that idle consumption becomes visible. Then by controlling: lighting, heating and pumps can be time-controlled or switched off automatically outside working hours. The heaviest item is dehumidification and building heating during drying, and it is controlled on the same basis: when the humidity measurement shows that a room is dry, the system can be switched off instead of running for weeks. Idling at night and on weekends is the easiest item to eliminate because it does not require anyone to change habits.

With a Connected Fuel Unit on the tank, each individual refueling is recorded: which machine is refueled, how much, and which employee does it. Consumption can therefore be distributed by machine instead of being recorded as one single item. A level gauge can be purchased for the tank, so you are notified before it is empty, and GPS, so you always know where it is. If the level drops without a refueling being recorded, it can be seen immediately, and this is what reveals waste.

Wireless sensors measure humidity and temperature in the room air and log the development continuously, room by room. This is where the big money lies: dehumidifiers and building heating are the heaviest consumers of the site, and they typically continue to run long after a room is dry, because no one can see when it has reached that point. With measurements, they can be switched off room by room, the next work step can be planned according to actual conditions, and you have documentation of the drying process for the client and consultant.

To a large extent, yes. We measure the flow in the water pipe, and limits are set for how much can flow and for how long at a time. If these are exceeded, for example by an open tap or a leak after working hours, the alarm is sent immediately and the supply can be shut off automatically. A break on Friday afternoon is thus stopped on site instead of being discovered on Monday morning. The flow measurement also provides the water consumption for documentation of the construction process.

We continuously deliver data on energy and diesel from OakSystem, and via API they are sent to the A4 platform that the customer uses. The client and consultant thus receive complete documentation on BR25 A4 and A5, without anyone having to collect figures manually along the way. DGNB can be supplemented with moisture measurement during drying, noise measurement on site and waste data retrieved via API, all of which are included in the assessment of the construction process. Because the figures are measured and not estimated, each individual figure can be traced back to a meter and a time, and that is exactly what an assessor and an auditor ask for.

Yes. We have a collaboration with Styr på, and together we cover the entire BR25 A4 and A5 documentation: they are responsible for A4, we deliver the ongoing measurement data to A5, and the exchange runs automatically via API. For you, this means that the documentation is delivered completely from one coherent setup, instead of having to be collected from two suppliers. If you want another A4 supplier, we also deliver data to them.

Four places, in the order they weigh:

• Drying out. Dehumidifiers and building heating are the heaviest consumers on the site, and they typically run longer than necessary. This costs both energy and construction time, and construction time is the more expensive of the two.
• By focusing on consumption, contractors typically save 8 to 12%, mostly by eliminating idle time outside of work hours.
• Recording each refueling eliminates waste and provides consumption that can be attributed to the right machine and the right contract.
• Fewer manual rounds, readings and calculations, and documentation that is complete when construction is complete.

Added to this is what doesn't happen: water damage that is stopped on Friday instead of found on Monday, and daily fines that are not imposed because the drying out could be documented.