EXP2_Week 2-Analytics Engine brief

Precedent study:

my chosen pachube is Use LED as both the sensor and light emitter. LEDs are commonly used as lights, but then can also be used as photodiodes to detect light. It can be achieve by using a high resistance circuit to charge up and release electric capacitance of LED to sample the ambient light level and then glow at an appropriate brightness. The data from feed is out put voltage AD value, but the meaning and usage of data is doing nothing with voltage.

Analytics Engine brief

In the real world situation, when user get close to the LED and cover it there will be light reflect back to the LED and a large value data will be generated. there for I’d like to use the distance in between the player and a react model to indicate the amount of reflected light. In my analytic engine I'm going to rebuild the real situation and use this week's tutorial flowgraph to generate xml file about the distance, then use the generated xml file to build a column diagram, so viewer will be easily understand what the pachube data means.

The data from my chosen feed is as low around 50 or as high around 1000, but in between there is very rare data appears. The data has a very wide range with a really big gap in it. Actually, the data can be regard as a true or false statement. the large value data generated when a user close to the LED which is as TRUE and the small data indicate that there is no user trigger the LED which is as FALSE. So I planning to make something can represent this true and false statement.

Data from the feed is also in related to time, the longer the user cover a LED the longer the output data of that LED will keep large (or true). I will use spawn for this case, model will generate follow by the player and the longer the player stay in one place the model will get larger.