Lemonbeat IoT technology: streamlined meter and system monitoring for the housing sector

Lemonbeat GmbH, a wholly owned subsidiary of innogy SE, is expanding its product portfolio to include an adaptor for diaphragm gas meters and heat output meters. This solution – based on state-of-the-art Internet of Things (IoT) technologies – provides customers with a cost-effective option for monitoring systems and components in boiler rooms. The solution has already been implemented successfully in partnership with a leading German housing company.

Owners of small and medium-sized properties can make significant savings using the latest monitoring solutions. By transferring data collected on site to a cloud-based management platform, property owners can analyse energy use and consumer behaviours, and even create energy statements, with very little effort. These kinds of systems also enable faults to be identified at an early stage – in some cases, before the customer has even realised there is a problem. The owner can also arrange remote maintenance and assume control of the system to rectify faults. Precise data management makes it easier for property owners to make investment decisions, such as whether or not to install a new boiler, and the data also serves as the basis for the development of new business models.

Lemonbeat technology at the heart of a cost-effective remote monitoring solution

Although these benefits are significant, the installation of IoT technologies in boiler rooms, and the subsequent connection of these technologies to a management platform, is often a difficult process that requires a high level of capital investment. Due to these financial implications, the housing sector is only now starting to catch up and implement the latest technology.

With Lemonbeat Internet of Things technology, the solution is smarter and more streamlined. There is no need to install expensive gateways to provide access to the internet: The solutions rely on IP protocols – already an established internet standard – to transfer data to the internet via normal routers. Lemonbeat’s robust sub-1 GHz wireless solution transfers data between the sensors and the router. This technology boasts a long range and high penetration, and is ideal for use throughout the building.

Lemonbeat uses an adaptor developed by its own engineers for heat output and diaphragm gas meters. The heat output meter communicates through a serial interface (RS232), via an optocoupler interface that is connected to the heat output meter. The new adapter for diaphragm gas meters receives data from an impulse sensor fitted to the meter. The data from the sensors is transmitted via Lemonbeat Radio (868 MHz) to an Ethernet adapter which is connected to a standard router; this router then sends the data on to an internet-based management platform The company is planning to announce further adaptors for boilers and pumps in December.


Visit Lemonbeat at SPS IPC Drives, the leading exhibition for electric automation, on stand 102/10.1. The show opens on 28th November 2017 in Nuremberg. This year’s event will focus on Industry 4.0. Lemonbeat are exhibiting in the control technology/industrial communication zone.

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