好的。
OK.

所以在上一讲中我们讨论了 HDMI 以及它现在是什么。
So in the last lecture we talked about HDMI and what it is now.

另一个简单的问题。
Another simple question.

什么是状态、系统、skater 是什么意思、skater 代表监督控制和数据采集。
What is a state a system what does skater mean skater stands for supervisory control and data acquisition.

这听起来比人机界面复杂得多，对吧。
That sounds a lot more complicated than a human machine interface right.

稍后我们要讨论的是 HDMI 和滑板之间有相当大的相似之处和不同之处。
Well something that we're going to talk about a little bit later on is that there is considerable similarity and difference between HDMI and skater.

但是，当您考虑一下时，监督控制不是操作员控制，也不是工程师控制。
But when you think about it Supervisory Control is NOT operator control it's not engineer control.

它没有设置技术人员控制。
It's not set up technician control.

这不是维护人员的控制，而是监督控制。
It's not maintenance guy control it's supervisory control.

现在，作为一名工程师，我想了解诸如操作员的调整、增益和设定点之类的事情。
Now as an engineer I'd like to know about things like trims and gains and setpoints as an operator.

我想了解机器的状态、工作情况以及性能。
I like to know about the state of the machine how it's working how well it's performing.

我希望能够调整一些东西，使其针对我们今天面临的情况运行得更好、更优化。
And I like to be able to tweak things that are going to make it run a little bit better and more optimally for the situation that we're facing today.

作为一名主管，我确实不需要像操作员、工程师或任何其他技术人员那样深入了解该系统。
As a supervisor I really don't need to get as in-depth into this system as the operator or the engineer or any of those other technical people do.

我真的只需要对该系统有更高层次的了解。
I really just need kind of a higher level view of this system.

是否有效。
Is it working.

是还是不是。
Yes or no.

有没有问题。
Is there a problem.

是还是不是。
Yes or no.

做得怎么样。
How well is it doing.

请给我一个我正在表演的 10 秒版本。
Just give me a 10 second version I'm performing.

我就这个水平，一切都很好。
I'm at this level and everything's good.

好的。
OK.

作为一名主管，这就是我真正需要知道的。
As a supervisor that's all I really need to know.

然后数据采集呢？
And then what about data acquisition.

好吧，在一天结束时、月底时、年底时，我可能想研究一下这个系统。
Well at the end of the day at the end of the month at the end of the year I probably want to study this system.

我可能想了解我的整个工厂或整个运营的表现。
I probably want to see how my entire plant or my entire operation is performing.

我希望能够看到瓶颈是什么。
I want to be able to see what the bottlenecks are.

也许我必须向一些政府机构报告我的系统是如何做的，它产生了哪些污染物，出于多种不同的原因，它产生了什么样的废物。
Maybe I have to report to some government agency on how my system is doing what pollutants it's generating what kind of waste is coming out of it for several different reasons.

每当我的一位操作员走过来对我说，嘿，这个系统坏了，你知道现在我们已经瘫痪了，我们必须修复这个问题时，我很高兴能够记录我的设备的性能历史。
It's nice to have a history of performance on my equipment whenever one of my operators comes up to me and says hey this system broke and you know now we're down and we have to fix this thing.

有了数据基础，我就可以回顾系统并说你知道什么。
Having a basis of data allows me to go back through the system and say you know what.

是否可以预见到这种失败？
Was it possible to predict this failure.

数据中是否有什么东西告诉我们，嘿，你的泵即将损坏，也许不是。
Was there something in the data which was telling us hey your pump is about to break maybe so maybe no.

这取决于我们正在收集什么数据、我们正在存储什么数据以及我们是否会花时间查看它。
That depends on what data we are collecting what data we're storing and whether or not we're going to take the time to look at it.

但我可能不需要花很多时间来赞扬作为工程师或渴望成为程序员的人手头有数据的好处。
But I probably don't have to spend a lot of time extolling the virtues of having data on hand to you as an engineer or as a person aspiring to be a programmer.

我相信您可能已经非常熟悉使用数据研究数据的好处。
I'm sure you're probably already very familiar with the benefits of having data using data studying data.

因此，我不会让您感到厌烦，但这就是溜冰者系统的本质，溜冰者不是操作员与机器或流程之间的一对一关系，而是一种一对多的关系，允许主管可以同时对建筑物内的每台机器（甚至可能是几个不同的建筑物）进行高级概述。
So I'm not going to really bore you with that but this is the essence of a skater system skater is not a one to one relationship between an operator and a machine or a process rather this is a one to very many relationship that allows a supervisor to get a high level overview of every machine inside of a building and perhaps several different buildings all at the same time.

因此，这是一个更高级别的视图，但细节比 HDMI 通常提供的要少得多。
So this is a higher level view with much less detail than the HDMI is usually going to provide.

但它将与各地的几个不同进程进行通信，并且将提取大量数据并将所有这些数据存储在数据库中，也许这是我们需要的数据，也许是我们发现可能有用的数据。
But it's going to be communicating with several different processes all over the place and it's going to be pulling in a ton of data and storing all of that data in a database maybe it's data we need maybe it's data that we found might be useful.

你知道，现在科技界的一个大问题就是大数据。
You know that's something that's big right now in the world of technology is it's called big data.

这实际上意味着我们正在捕获一堆数据，我们将其存储和仓储，尽管我们可能不知道如何使用它，但所有这些数据可能带来的好处是什么。
And what this really amounts to is we're capturing a bunch of data we're storing it warehousing it and even though maybe we don't know how to use it all are what the benefits of all of this data might be.

我们知道必须对这些数据有一些洞察力。
We know that there's got to be some insight in this data.

因此，我们每天每小时只收集千兆字节的数据，我们只是将其储存起来，希望一些数据科学家或一些非常聪明的统计人员可以一起研究这些数据，并说嘿，这里有一些关于您的有用的见解。生意会让你做得更好。
So we harvest just gigabytes of data on an hourly daily basis and we just kind of hoard it and warehouse it and hope that some data scientist or some really smart or statistics person can come along study this data and say hey here's some useful insight into your business which will make you do better.

这就是大数据的梦想。
So that's kind of the dream of big data.

对于滑冰者的系统来说，实际上并不总是不同的，因为某些特定原因我们必须存储一些数据。
And with skater's systems it's really not always dissimilar there are some data that we have to store for a specific reason.

但话又说回来，您会在规模系统中看到，许多人只想存储所有东西的一点点，以防有一天它可能有用。
But then again you'll see in scale systems that allow a lot of people just want to store a little bit of everything just in case it might be useful one day.

但无论如何，我们都非常同意能够回顾过去并说那天发生了什么真是太好了。
But whatever the case we all pretty much agree it's great to be able to look back in time and say hey what was happening on that day.

因此，当您谈论溜冰者时，您正在谈论如果我们在 RPO 内部看到 H 上的 10000 个标签，也许我们真的只会向操作员显示秤上的 1000 个标签，系统可能只会显示也许 10 到 50 个标签要少得多。
So when you talk about skater that's where you're talking about where if we have inside of RPO see 10000 tags on an H in my maybe we're really only going to show the operator 1000 tags on the scale a system will possibly only show maybe 10 to 50 tags much fewer.

因此，我们只讨论非常非​​常相关的最有用的信息以及其余的内容。
So we're talking about only the very very very pertinent most useful information and the rest of that stuff.

我们将把它保存到 my.h 文件中的 H 中。
We're going to save it for the H in my.

当然，任何 C 程序都存在大量标签和大量信息，实际上根本不需要任何可见性。
And of course with any C program there's a lot of tags and a lot of information that really don't even need any visibility at all.

稍后我们还将讨论可见性。
We're going to talk about visibility a little bit later on as well.

但现在只要明白，如果上诉方面有这么多信息，那么我们的 HDMI 中可能就只有这么多信息。
But for right now just understand that if there's this much information side of Appeals see then there's probably only going to be this much information inside of our HDMI.

然后我们的国家系统内部只会有一小部分。
And then there's going to be just a little subset of that inside of our state system.

这就是秤如何工作的细分，它的功能是什么，它为我们做什么
So that's the breakdown of how a scale works what its function is what it does for us