After a quite busy period of tests and trials, the new version of openzmeter in its three-phase variant is here. Its development is a major step forward towards the reinforcement of the project and we believe that it will allow us to reach a larger number of people. Following the same philosophy as in single-phase ozm (now called ozm1), the …
Upgrade firmware for old oZm versions
The old versions based on Debian images can be upgraded to newest based on OpenWRT. The procedure is simple, but be very careful!. 😛 WARNING: All your information will be lost!!! Uncompress and flash the .img.gz file on a microSD. Power off the ozm and remove the power supply. Extract the NanoPI board from ozm (double check that you’ve removed …
New version v2.0 released
We are excited to announce the new improved version of oZm v2.0. In this new version, major enhancements have been made to most of the basic modules, resulting in a much more stable and improved system. Operating system The first major change has been to switch the operating system from Debian to OpenWRT. This change has been motivated by the …
Paper published in journal Sensors (MDPI)
This is the second specific paper on the openzmeter device. It describes in detail its hardware architecture and provides measurements in a real scenario. Likewise, a comparison is made with commercial and professional devices that reveals the accuracy of the measurements obtained according to international standards. Cite as: Viciana, E.; Alcayde, A.; Montoya, F.G.; Baños, R.; Arrabal-Campos, F.M.; Manzano-Agugliaro, F. …
First scientific paper published
The openZmeter team is completely delighted again. Recently, a new scientific article has been published in the prestigious journal Sustainability edited by MDPI. Our Ph.D. Student Eduardo Viciana did a great job and the result is his first international paper entitled “OpenZmeter: An Efficient Low-Cost Energy Smart Meter and Power Quality Analyzer”. It is open access and can be found …
How to install your oZm in an Electrical Box
Ok, you have just received your brand new openZmeter and it’s time to install it. I must admit it’s not a straightforward task, but it can be done in some few minutes if you put attention. You need a screwdriver and a wire striping tool. Be patient. Warning: be careful and do it at your own risk.
Some History about oZm (III)
This is the third and final entry about the OpenZmeter project history. You can read the first one here and the second one here. After the first sketches and designs based on the BBB and own electronics (something homemade… everything is said), there was a step forward in quality with the arrival of Eduardo Viciana to the project. Thanks to …
Some History about oZm (II)
This is the second entry about the history of the openZmeter project. You can read the first one here. Once the interface was designed and concept tests were performed, the hardware definition phase began. Initially, and due to limited manpower with advanced knowledge in electronics, it was decided to make use of the Texas Instruments BeagleBone Black (BBB) board. Previously, …
Some History about oZm (I)
Today I start a series of posts about the origins of the project. I think it is good to remember the beginnings of everything in order to remember the road we have walked and to know why we first began and how we have survived to the present day. I’ve been looking in my memory chest and the first email …