Embedded software development

Embedded software development

Control cabinet design for special machines, PLC programming

In this business, we build control cabinets and PLC controls primarily for our industrial partners. The mechanical and pneumatic parts of the target machines are manufactured by our partner in Debrecen, Plastic-Form Kft., For its automotive partners. We design the control for these machines, then we build the control cabinet, if necessary we help to connect the sensors and actuators, we write the PLC program.

Monitoring systems

When choosing the name of our company, the inclusion of the word SYSTEM was conscious. As well as using this in the plural. We build systems every day, we constantly think in systems during our work. The most common products we manufacture are either some kind of sensors or actuators, or various combinations of these. It is not difficult to see that even the smallest sensor only makes sense if it can deliver the signal to the user.

As an example, I will show you what the path of the signal looks like when measuring the temperature of a cold store, this example will be an excellent example of how our systems will be built from a multitude of these sensors later:

The customer is a company that operates and maintains cold stores, they want the maintenance staff to be alerted immediately if the temperature starts to rise above the allowable value. In addition, their customers should be able to consult the cold store temperature data at any time, even retrospectively.

Temperatures are measured by our zTemp LoRaWAN sensors. The DS18B20 temperature sensor detects the air temperature in the cold store. It is read out every five minutes by the zTemp processor and transmitted via its built-in antenna in the so-called subGigaHertz band to the LoRaWAN gateways. In our local example, the signals are received by the Kerlink or Mikrotik LoRa gateways of Antenna Hungária or IoT Zrt. The network server used depends on the service provider, it can be Loriot or Chirpstack, TTN, Helium. The network servers transmit the signals to our application server.

In this case, we use the TagoIO service as an application server, where it is possible to both display the data graphically and monitor the values, so that if the limit value is exceeded, the system will automatically send messages to the user. Messages can be push messages directly from the Tago app, or email or even SMS.

The graphs can be viewed by authorized users either in a web interface or in a mobile application. The data reaches the user through a number of devices and software, in return for which our sensors are connected to the customers assigned to them in a flexible, cost-effective, state-of-the-art IT system. Our system is robust, so its reliability can be extremely high, yet we can say that it is relatively simple, easy to maintain and scalable.