CUR's Case Study - Applications of the DC 300: Part I

The data concentrator DC300 is a device that can manage counting inputs from different sources, like USDS directional detectors or potential free contacts, calculate the residual spaces and send this information to connected signs or output modules. The DC300 comes with basic functionality and is expandable by different modules to fit the customer requirements.

Counting the free parking spaces with a barrier system

As an example project, a small parking garage with two levels and an overall amount of eleven parking spaces is used. The in- and outgoing vehicles are counted with the help of a barrier system. That the visitors know the current parking situation inside the garage before they drive in, a LED-sign in front of the parking garage shall display the current amount of free parking spaces.

The realization of this problem is possible with the data concentrator and the 8-port input module.

The most barrier systems are equipped with a potential free contact, which is triggered every time a car drives through. This potential free contact is connected via the 8-port input module with the DC300 data concentrator. The use of the potential free contacts of an induction loop system is also possible.

The residual space display is connected via the RS485 communication connector directly with the data concentrator.

The configuration of the data concentrator for this specific task is explained below:

The data concentrator can handle up to 8 different counters, which can be configured freely. On the first step, the potential free contacts are assigned to a counter. The contact of the entry barrier is configured to count negative, the contact of the exit barrier is configured to count positive.

The next step is to configure a sign, which is assigned to the counter. After configuration, the DC300 sends the sign information over its RS485 interface to the connected signs.

On the last step, the counter has to be set to the actual value of free parking spaces. The system is now ready and shows the residual spaces on the sign in front of the parking garage.

About CUR Systemtechnik

We have been successfully developing and producing electronic equipment and devices for more than 20 years.

Our main fields of activity are:

Traffic technology – e.g. electronic displays, vehicle recognition sensors, data concentrators, car park system-software for multi-story car parks.

Control technology – analogue and digital special developments, circuit board control with microprocessors, etc.

Industrial electronics – e.g. Charge controller for batteries, solar equipment, security systems, transmission technology, etc. – propulsion technology, engine regulation, bearing regulation, etc.

We have a large international following due to our innovated and futureorientated technology, the high quality of our products and services, our flexibility and our customer satisfaction.