Why, now, on the web site of motion displays supplier, we should wrestle the issue of evaluating the finished product? - A roller screen has to have two major components: the aesthetics and reliability. Surely, the reliability of mechanism and the aesthetic appearance of the display.
The basis for evaluating was the biggest Russian Advertising exhibition Reklama-2008 (ADVERTISEMENT -2008) , which was held in Moscow. On this exhibition you could see represents all over the Russia and some other countries: China, Ukraine, Belarus, Sweden, e t.c.
Moving on. When you log into a second room for a huge area of our encounters exhibition company «Prizmatron», unchanged from last year (back, printed on the banner looks rather terrible - found, so as to save:), a lot of thick triplex - probably, the company lobbied the interests of glaziers.
They have kindly demonstrated working city-format, even opened lid of the display, but alerted the ban on photographing the control PCB. Chinese electric DC motors, simple sensor system.
The next move is to the company “Favor” - a new city-format motion display is really well, they have used the most popular decision in the world – glass is glued, no framework baguette - the company reiterated it brilliantly. Profile box provides high rigidity of the structure enough to roller display.
It is hoped that customer deliveries will not be different in appearance and quality of the exhibition specimens. From conversations with officials of the company it can be concluded that in the near future the company will introduce (or fails to provide – because of lack of purpose) a unique solution for the roller mechanism. “Favor” is technically literated and have a clear vision.
Both devices are made of metal-plastic profiles and are equipped with the lastest version of a series of mechanisms "IQ", worked in an alternating mode, because regularly were willing to consider the details of the mechanisms, which had to turn off the scrolling, open the lid and so on.
Further, our path lies in the room N-3, where we first met the company “Eurostreet”, flooded with different advertising units on a relatively small area. Difficult to assess the magnitude of the proposals at such small spaces. Here is a roller screen 3 * 4 meters, as well as some semblance of brick - blanks for the manufacture of roller display 1.2 * 1.8. When closer look we notice disorderly assembly finished roller display and a fairly large crack on the top "face" corner of the finished design. In our observation of "strange performance for high-quality positioning" director smiles and nodes with ass face.
A bit further, we can find absolute inadequate stand of the French. Dim lighting, hardly designed display - the horror! What had people wanted to show (or to say)? Perhaps there is the simple explanation: where efficiency ends - begins showy characteristics. This idea of us holds to the last visit in a third room - the largest in size and effective advertising solutions, with an incredible roller displays the total number of all sizes and types: the stand of “Adventure - D-media " consortium.
Now, the most interesting (from our point of view): the technical details of policy differences technical and technological solutions promoted by these companies.
So, let’s look inward and try to understand - who is who.
On the photo – cutting of roller mechanism that comes in Adventure constructions (the list could go on - but only Adventure use a technical solution with the consent of the authors)
At the core of the device is a revolution of electric motor shaft counter – it’s readily visible impeller and light sensor - exactly the same as the early release of BigPlakat’s NewSensor™ system.
IQ mechanisms of BigPlakat company: today is the same idea of counting and memory speed shaft (or shafts) is executed on a new technical level, namely: the three phase (number of semiconductors) motor with a magnetic rotor - a kind of synchronous motor, known from almost the first third of the last century. Determining the true state of the rotor in such motors is based on anti- electromotive force, brought in stator tapings with rotating magnetic rotor.
Simply put, this solution provides the highest efficiency of electric motors - and this in turn an independent power supply with a minimum battery size (if necessary) and increasing better interference resistance and any characteristics power two independent channels to monitor the scrolling situation - through counter induction and Hall sensors, and most the main thing - a full transition to digital control device.
to be continued ...