The three components of CPS futures. Not three ghosts visiting you in a single evening. Rather the three pieces of a increasing complex puzzle. Data, Access and Power.
110 zB or Zeta bytes of information currently produced by CPS sensors and devices every year. Based on an installed base of 10 – 14 billion CPS devices. A number that increases every year and is projected by 2020 to be near 46 billion deployed devices or if you are doing the math – 4 times what we have deployed today. We can assume with smart devices we won’t have a linear increase in data produced but you can safely assume that there will be between 200-300 zB of information produced by CPS devices.
Smart Device Rule: Only report when there is a change outside of your known good range. (easy one – if you are a river level monitor and the river changes 1 inch don’t report it. If the river changes to near flood stage report it).
So that CPS device has to have some level of security. There needs to be a level of security on the device. Personally I think of the show “Person of Interest” as an example of why there needs to be cloud, transport and device level security. It shouldn’t be that easy to tap into the video feeds of New York City. So Access to what and how becomes important. Who grants access and who revokes access to a CPS implementation. Where possible access and revocation should be automated.
Smart Device Rule 2: Be aware of how much data you are moving and the amount of bandwidth you have available.
The last piece of my puzzle is power. Every year in the fall I change the batteries in the smoke detectors in my house. They are now NEST connected so they are CPS devices. They have rechargeable batteries so I don’t have to change them weekly but you do have to change them from time to time. Easier just to do it once a year.
Smart Device Rule 3: Buy power on the sport market – use power intelligently. When possible balance battery versus charging.
Reality is there is a fourth problem (Bandwidth). I’ve been trying to beat a fart out of that dead horse for a long time. Today most homes will have bandwidth problems very soon. Cable companies advertise that they provide the fastest in home Wi-Fi connections. They may, but that router only has one cache and your CPS devices are chewing up that bandwidth and cache by the second. The risk of CPS devices in the home is who can touch them, see them and use them. The value is that you can access them and use them. But if your router is overloaded you won’t be able.
Smart Device Rule 4: Understand who should use your data. Report violations of data integrity and device access.