Energy Monitoring for Buildings

Energy monitoring is often implemented with vertical integrated solutions of a single manufacturer. This approach is at a first sight simple, but it can bring to higher costs and to a sub-optimal solution to the given requirements.

Put it simply, an energy monitoring system is composed of (i) meters/sensors, (ii) a controller/data-logger and (iii) a cloud service if needed. The design of the three components are decoupled as long as they are based on standard interfaces and on open specifications. Closed specifications bring to a vertical solution, which is difficult to adapt to the particular requirements of each case.

Qeed brings a significant advantage in the deployment of energy monitoring in terms of

  • functionality (e.g. energy meters with harmonic analysis);
  • modularity (energy meters directly accessible with ModBus - no proprietary coupler is needed);
  • form factor (e.g. three-phase energy meters in 17,5mm, current transformer with integrated voltage meters and ModBus);
  • compatibility (interfaceablewith any controller, the registers list is fully released).

In the examples below, we assume that Qeed energy meters are connected to the Higeco Datalogger. This is a ModBus-capable central unit that collects the measurements and presents a user-friendly graphical interface. In addition, the Higeco Datalogger can store the data in a cloud service for secured remote access.


building management

 All components are for DIN-rail mounting, see picture below.

QE POWER T beispiel2 QE POWER T beispiel2


The datalogger can be connected to a local Ethernet network or to a GSM modem (like in figure).

The datalogger can be accessed over a local network or remotely per encrypted connection (VPN).

The data can be visualized by accessing directly the datalogger or optionally by a cloud service. The cloud service allows a reliable 24/7 access to the data and allows multi-site management.

Reports can be sent per email, alarms per SMS.


cCurrent meter QE-CURRENT-485

Universal Input for current transformer
Universal Input for temperature sensor
ModBus interface for current measurements, counters and max/min/avg.
Optional harmonic analysis and network analysis

tQeed 3-phases energy meter QE-POWER-T

3 Universal Input for current transformers
3 Inputs for voltages
ModBus interface for I,V and phase measurements, counters and max/min/avg.
Optional harmonic analysis and network analysis

oQeed Power meter QI-POWER-485

Through-hole for current measurement
Input for voltage
ModBus interface for I,V and phase measurements, energy counters and max/min/avg.

sQeed Signal converter QA-OMNI

Input for analog signal 0.10V or 4..20mA
Input for digital signal
Output for digital signal/relais

hAny humidity sensor

Analog signal for QA-OMNI

tempAny temperature sensor

Analog signal for QA-OMNI

wind Any wind measurement station

Direction as analog signal for QA-OMNI
Speed as digital signal for QA-OMNI

analogAnalog/digital signal

modbusModbus interface


 Our activity and further information

We provide a thoroughly sales and technical support to installers and system integrators for Qeed power meters and Higeco dataloggers. We developed a software to shows the ModBus registers conveniently in tables and graphs. This reduces the time-to-learn and speeds up the business of our clients.

If you are interested in any information or collaboration, please feel free contact us.