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m2m-iot
Q?
What is M2M or IOT?
A.
Machine to machine (M2M) or Internet of Things (IOT) refers to technologies that allow you to connect any device to another device or application-using internet for communication. These devices can be sensors, actuators or embedded systems that can communicate over the internet. The technology has existed since some time, but the reduced cost of communication and hardware has made this technology available to the masses now.
Q?
How does it work?
A.
It works in two ways depending on the connected device:
Legacy Devices: These devices have existed from decades - like PLCs, meters and sensors. They can communicate with other systems but do not have capability to connect to the internet. These devices connected to a M2M gateway or service - that in turn connects them to the internet. Smart Devices: These are devices or equipments with the capability to communicate over the internet, embedded in them. These can be in form of embedded modules on your equipments, energy meters, sensor etc. These are like legacy devices with an embedded M2M gateway.
Q?
What is the difference between SCADA and M2M?
A.
The differences between SCADA (Supervisory Control and Data Acquisition) and M2M are largely semantic. One of the key differences is the communication infrastructure they use. M2M or IOT is SCADA systems combined with the internet. M2M primarily uses web technology and is larger in scale than SCADA.
Q?
Where can I use it?
A.
You can use it anywhere you want to acquire data from sensors and devices using the internet as the communication network. It is well suited for applications where you want to connect to devices that are mobile or spread over a large geography. Therefore, if you want to monitor devices inside the plant then M2M might not be a right choice for you. However, if you want to acquire data from all your plants across the globe centrally then M2M is the choice. M2M is a good choice for monitoring utility assets, vehicles, retail stores, AMR, OEM smart services etc.
Q?
Can I use it for real time monitoring?
A.
Since M2M uses public networks or internet, the packet delivery time cannot be deterministic. For applications that are sensitive to time delays using a dedicated optical fiber network is better. You can use M2M for most of the non-critical real time monitoring applications.
Q?
Can I use it for controlling remote assets?
A.
Yes, you can use M2M to control devices remotely.
Q?
How secure is M2M?
A.
Use of encryption and authentication for communication has made this technology very secure. When you can access your financial systems over the internet, these are mere devices.
Q?
What are the components of a M2M solution?
A.
The M2M solution can have the following components:
End Device or Node: A device that measures some physical parameter. Example - temperature sensor, energy meter, IO Module etc. IOT Gateway: A communication module embedded in the node or connected to the node using a communication port. This provides the internet access to the node. Device and Data Acquisition Platform: This is the M2M software platform hosted on the internet and to which all gateways connects. It enables communication between devices and applications. It provides data routing, parsing and storage functionality. It also provides API for other application to connect to it. Like ioEYE. Application: These are web or enterprise applications that connect to the device and data acquisition platforms via the API. These applications can be custom web applications, CRM, ERP etc.
Q?
What care should I take when choosing a M2M Gateway or Module?
A.
Please read the article here.