I know it's a little late for this, but I had the opportunity to use PoE (Power of Ethernet) this time.
PoE can supply power (15.4W per port) simultaneously with data communication via LAN cable.
This time, I could "feel" it with a PoE-enabled camera.
Thoughts,
"Very useful"
First of all, of course, I don't have to care about the location of the power outlet, but it is also great that there is no need to run two cables, one for communication and the other for power.
誰がために「介護IT」はある？https://t.co/QQTebTEFvX pic.twitter.com/ZYx02iRwGf
? EE Times Japan編集部 (@eetimes_jp) September 30, 2019
As you know, I have a surveillance camera installed in my house, and I had a lot of trouble with the wiring (especially the power cable).
Burying power cables underground or laying them in walls is more trouble than it seems (for leaks or short circuits).
If you think about it, this is a matter of course, but the fact that this matter of course is not known until we try is a weakness of the new technology.
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Another barrier to such "new technology" (PoE was more than a decade old) was the high price of PoE-capable Ethernet hubs.
I think it was about 100,000 yen.
But I checked the other day, and it was about 5,000 yen for five ports.
I only needed one port for one camera, so I got it from Amazon.com for about 1500 yen.
I thought, "I still need an Ethernet cable that supports PoE," but when I tried it with a Category 6 cable I found lying around, I was surprised it worked just fine.
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Thus, new technologies are doomed to fail to spread unless both "experience" and "commoditization(*)" are in place.
(*)A product or service that was a high value-added product or service at the time of its market launch, but as a result of market activation, other companies have entered the market, and there is no longer any difference in functionality, quality, etc., for users.
The former "experience" is particularly difficult.
There is a story about this when the Ebata family installed an HDD recorder (I could not find the exhibit).
My wife, who said 'VHS (tape) recorder is enough,' completely forgot the existence of VHS after purchasing the HDD recorder.
There have been these conversations in the world about rackets and smartphones.
"We can look things up on my smartphone." and "Why don't you just look that up on your home computer?
The transition to digital terrestrial broadcasting (the notice period was seven years, I think) was also a bit of a struggle. Still, at this point, no one I know says, "I don't need digital terrestrial broadcasting; go back to analog broadcasting.
What I'm trying to say is,
"Engineers who want to hit it out of the park with new technology are always doomed to lose."
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Looking at my daughter, it seems like she is having difficulty finding a job.
On the living room table is always a pamphlet for job hunters from some company.
Yesterday, I found a pamphlet for job hunters from a general electronics manufacturer I know well.
I had a blast reading it.
Well, (no sarcasm) I enjoyed it.
It was a new learning experience for me.
But here's the thing: "You are always doomed to lose. Still, why don't you come to us?' I would probably have been "impressed" if there had been a word of