现在我们对什么是 HMO 和什么是滑板有了基本的了解，让我们稍微比较和对比这两个东西，以真正了解它们的情况。
Now that we have a basic understanding of what an HMO is and what a skate is let's compare and contrast these two things just a little bit to get an understanding really of what's going on with them.

好的。
OK.

有什么重叠。
What's the overlap.

他们的分歧在哪里。
Where do they diverge.

可以一个替换另一个吗。
Can one replace the other one.

如果我们正在设计一个系统，您知道如果它是一个小型操作中的小型系统，那么这些是我们想要考虑的事情，我们是否真的需要这些数据。
These are the things that we want to look at if we're designing a system you know if it's a small system in a small operation Do we really need this data.

我们可以在 my.h 中使用 H 吗？
Could we use an H in my.

我们能否利用国家来发挥 HMO 的作用？
Could we use the state to act like an HMO.

嗯，这些都是有效的问题。
Well these are all valid questions.

因此，真正理解我们已经介绍过的第一部分是理解这两件事是什么。
So the first part of really understanding that we've already covered that is understanding what the two things are.

但是，让我们更仔细地看看它们有何不同以及它们之间的关系，即 HDMI 和比例之间的差异。
But let's just look a little bit more closely at how they differ and how they relate so differences between HDMI and scale.

首先是视角。
The first thing is perspective.

HDMI 更深入、更底层。
The HDMI is much more in-depth much more low level.

我们正在研究所有参数的详细设定点。
We're getting into details set points for everything parameters.

当这些机器要改变周期时会发出警报，它们将如何工作。
How are these machines going to work when it's going to sound an alarm when it's going to change cycles.

如何开始如何停止。
How to start it how to stop it.

我们可以禁止哪些过程，我们可以允许哪些过程。
What processes we can inhibit which ones we can permit.

我们希望能够通过 h my 手动或自动控制每一个设备。
We want to be able to control every single device manually or automatically and all through the h my.

现在，国家通常是一个高水平的系统，这是一个很大的系统，因为我现在给你的所有这些规则都是通用的，你会看到这些规则中的每一个都在现场被打破。
Now the state a system that's high level that's usually And this is a big usually because all of these rules that I'm giving you right now are all general and you will see every single one of these rules broken in the field.

因此，这些规则中没有一条是真正绝对的。
So not one of these rules is really an absolute.

HDMI 应该提供非常详细的信息和系统控制，但事实并非如此。
The HDMI should give very detailed information and control of a system but it doesn't always.

这是一个概括。
That's a generalization.

滑冰者的系统应该只真正给出系统的非常高水平的概述。
The skater's system should only really give a very high level overview of the system.

但这又是一个概括。
But again that's a generalization.

您将在现场看到系统，滑冰者可以 100% 获得眼睛所获取的信息。
You will see systems in the field where the skater gets 100 percent of the information the eye does.

在一些非常奇怪和怪异的情况下可能会更多。
Maybe even more in some really strange and bizarre situations.

因此，无论如何，一般规则都不是普遍适用的绝对规则。
So the general rule is not a universally applicable absolute by any means.

但总的来说 HDMI 是非常详细非常低级的。
But generally speaking HDMI is very detailed very low level.

系统规模非常高。
The scale of system is very high level.

没有太多细节，只是一般参数。
Not a lot of detail just general parameters.

另一个区别是 HDMI 实际上是一对一的关系。
Another difference is that the HDMI is really a one to one relationship.

它向操作员展示一台机器内的一个处理器中发生的情况，另一方面，溜冰者向一位主管展示可能一百甚至一千台不同机器和不同流程中发生的情况。
It shows one operator what's happening in one processor inside of one machine the skater on the other hand shows one supervisor what's happening within maybe a hundred or maybe even a thousand different machines and different processes.

所以这是一个更广泛的概述。
So it's a lot broader overview.

因此，虽然 HDMI 专注于一件事的所有细节，但溜冰者只专注于对很多很多不同事物的快速概述。
So whereas the HDMI is focused on all the details of one thing the skater is focused on just a quick overview of lots and lots and lots and lots of different things.

就像我们的第一条规则一样，这条规则是通用的，但它不是普遍的，也不是绝对的。
So like our first rule this one is general but it's not universal and it's not absolute.

您是否见过控制两个不同系统或两个不同进程的 HDMI。
Will you ever see an HDMI which is controlling two different systems or two different processes.

绝对地。
Absolutely.

您是否会看到一个系统的整个状态实际上只是控制单个进程。
Will you ever see a whole state a system which is really just controlling a single process.

是的。
Yes.

你也会看到这一点。
You'll see that also.

这是一般规则。
This is the general rule.

这就是这些不同技术及其创建目的背后的理论。
This is the theory behind these different technologies and what they were created to do.

但这并不意味着每个人都会这样使用它们。
But that doesn't mean that's how everybody's going to use them.

有时在现实世界中，人们将足球运动员放在二垒上。
Sometimes in the real world people put a football player on second base.

这是错误的游戏。
It's the wrong game.

但如果他能完成工作，他们通常会对他感到满意。
But if he can get the job done they're usually happy with him.

HDMI 和 Stadia 之间的第三个区别是 HDMI 的真正目的是在任何给定时间点向操作员显示。
A third difference you're going to have between HDMI and stadia is that the HDMI is really built to show the operator at any given point in time.

系统内部数据的快照。
A snapshot of the data inside the system.

因此，如果您想查看您的水箱液位是多少，您可以查看屏幕，我会告诉您现在的液位为 72%。
So if you want to see what your tank level is you can look on the screen and I'm going to tell you right now you're at 72 percent.

当你三秒后回头看时。
And when you look back three seconds later.

现在我已经达到了 71%。
Now I'm at 71 percent.

但它并不是真正设计来存储这些数据并保存这个数据的。
But it's not really designed to store this data and save this that.

当你说“嘿，我想知道昨天这个时候水箱液位是多少”时，奇梅说我不知道​​。
And when you say hey I want to know what the tank level was this time yesterday Chimay says I don't know.

我只能向你展示电脑现在向我展示的内容。
All I can show you is what the PC is showing me right now.

另一方面，溜冰者的系统实际上是为容纳所有这些数据而设计的。
The skater's system on the other hand is really designed to house all of this data.

那么现在的水平是多少呢？
So what's the take level right now.

我要把它储存起来。
I'm going to store that.

从现在起五秒后是什么？
What is it five seconds from now.

也打算存起来。
Going to store that too.

你知道数据存储有不同级别，有人说系统实际上是在存储每分钟或每秒的数据。
And you know there are different levels of data storage some say systems are really storing minute by minute or second by second data.

其他人每 15 分钟甚至每小时存储一次数据。
Others are storing data every 15 minutes or even every hour.

只是取决于人们需要什么以及他们有多少硬盘空间，因为所有这些数据都用于一千个系统。
Just depends on what people need and how much hard drive space they have because all of this data for a thousand systems.

是的。
Yeah.

这占用了很多空间。
That takes up a lot of space.

所以一般规则是 HDMI 不存储数据。
So the general rule is the HDMI doesn't store data.

滑冰者的系统确实存储数据。
The skater's system does store data.

现在的现实是，在我眼里，存储数据已经有年龄了，所以霍德利，滑冰者的系统不用来存储任何数据。
Now here's the reality are there age in my eyes that store data have so Hoadley are there skater's systems which aren't used to store any data.

是的，有。
Yes there are.

所以再次强调，规则不是绝对的，但一般来说 HDMI 没有数据采集溜冰者有这种采集。
So once again the rule is not the absolute But in general HDMI no data acquisition skater has that acquisition.

我要告诉您的区分 HDMI 和标量的最后一条一般规则是，HDMI 通常位于物理安装在其控制的机器上的专用设备上。
And the last general rule that I would give you to differentiate between an HDMI and a scalar would be that usually the HDMI is located on a dedicated device physically mounted on to the machine that its controlling.

而溜冰者通常在服务器上，通常是某个地方的控制室，甚至是远离生产车间的控制室，远离工厂，远离机器，位于一座装有空调的独立建筑中，每个人都穿着更好的衣服坐在周围喝着柠檬水。
Whereas the skater is usually on a server often a control room somewhere or even off site far away from the production floor far away from the plant removed from the machinery in a separate building with air conditioning and everybody sitting around sipping on lemonade wearing nicer clothes.

好的。
OK.

是的，这有点刻板印象。
Yes that's a bit of a stereotype.

但你明白了。
But you get the idea.

HDMI 通常就在机器上。
The HDMI is usually right on the machine.

状态通常在其他地方。
The state is usually somewhere else.

隔壁房间里还有基于 PC 的 HMO 终端。
Once again are there PC based HMO demise which are located in the next room.

完全。
Totally.

机器中是否内置有溜冰者系统。
Are there skater's systems which are built into the machine.

其实没有。
Actually no.

我从未见过机器中内置的秤系统。
I've never seen a scale system built into a machine.

它们可以在机器旁边的计算机上运行，​​但我还没有看到状态系统物理安装在机器上。
They could be running on a computer right next to the machine but I have yet to see a status system physically installed on the machine.

话虽如此，有些 HDMI 设备可以运行完整的 Windows，并且能够运行状态系统并将其物理安装在计算机上。
That being said there are HDMI devices which run full Windows and would be capable of running a state system and have it physically mounted on the machine.

所以已经完成了。
So has it been done.

是的，我向你保证它有。
Yeah I guarantee you it has.

我已经看到了它。
I've seen it.

不。
No.

但实际上，可能有人每天都在这样做。
But somebody out there is probably doing it just as a matter of fact every single day.

所以如果你见过一个直接内置在机器中的溜冰者。
So if you ever see a skater built right into a machine.

不要感到惊讶。
Don't be surprised.

如果你再次看到世界另一边的大自然，人们就会做出疯狂的事情。
And if you ever see a nature my on the other side of the world again people do crazy things.

所以你会看到两者。
So you'll see both.

但仅此而已。
But that's it.

这些实际上是 HDMI 和滑板之间的唯一区别。
Those are really the only differences between HDMI and skater.

你会把这些事情视为绝对吗？
Are you going to see those things as absolutes.

不。
No.

您是否会看到 HDMI 被用作滑冰运动员，并且滑冰运动员被用作团队 Miles。
Are you going to see HDMI is being used as skaters and skaters used as a team Miles.

绝对地。
Absolutely.

所以现在你说好吧，为什么我们有两种不同的东西。
So now you're saying OK well why do we have two different things.

这是个好问题。
That's a good question.

我们将在学习本课程时探讨这一点。
We'll explore that as we go through this course.