// Its Hard Teaching an Old Dog New Tricks. Thanks John for checking on me. Also, thanks for all input.
// I will try to right this kind of stuff: if (digitalRead(A0) = HIGH);
{
switchPin 7 == HIGH; in my next post.
// I want to get "Certified" by Arrow Electronics...Indiegogo & Arrow teamed up to help people like me.
// Notes
The Microcontroller can control, almost perfectly, from timing alone; output HIGH for 152ms (.0152) and, output LOW for 848ms (.0848). This timing will allow for multiple corrections per seconds and, is for both WEST (CW) and UP (CW), depending on point of view. With GPS timing, the ‘Days’ can be programmed at the immediate installed location. At the end of the day, the altitude will remain at that angle, while the azimuth angle will travel back to, and park, in the East for the next day.
Microcontroller controls the motors in their respective directions based on their sensor inputs.
Think of a clock face--the center sensor, when light shines on it, the sensor is looking through the orifice hole directly at the center of the sun and, is on control point.
When the sun moves, it shines across the orifice opening, out the bottom at an angle, and falls on a side sensor; that sensor energizes its respective motor to remove the light from that sensor and bring it back to the center.
At the start of the new day, if timing alone is slightly off, the altitude sensors will respond to bring the platform to control point. This should be within control range for Seasonal Solstices and Equinoxes.
Notes, cont.
This control unit can be manufactured in various models. My desire at the moment is to get one to market at a reasonable cost, immediately.
The loads imposed will warrant having different capacities. Changing out the FETs is one example.
The control can be made with WiFi intergraded; touch key pad, etc..
The motors will be 24 VDC so, multiple output transformers will be required so as to handle both.
They can be cabinet mounted or, decorator styled to hang on living room walls.
Manufacturing costs have to be considered. One to control the umbrella on the back patio is an example; remote mounting is another.
Re: BOM?
Microcontroller-ATmega-328P [This controller appears capable, if pushbuttons can be used]
MCU 8-bit ATmega AVR RISC 32KB Flash 2.5V/3.3V/5V 28-Pin PDIP
TSOP32438SS1V IC IR RCVR MOO 38KHZ RADIAL (these are 5mm and can be substituted with 3mm).
PNP Darlington can be used or, separate amplification utilized).
The below companies were used for the previous prototype but, some parts will not be required in the new design. Perhaps a fixed resistor can replace the Bournes variable.
Phoenix Contact
Lumex SML _LED Mfg# LX1206GC-TR
Micro Commercial
Panasonic
TDK
Fairchild
Te
TI
Bournes
https://www.arrow.com/en/indiegogo/program-overview
- A millisecond (from milli- and second; symbol: ms) is a thousandth (0.001 or 10−3 or 1/1000) of a second.
10 milliseconds (a hundredth of a second) are called a centisecond.
100 milliseconds (one tenth of a second) are called a decisecond.
The timing is to be replaced with Microcontroller and GPS.
Part of the ‘system’ is the separate sensor assembly. The new sensor assembly also needs to be produced in a Plug-and-Play assembly with several extension (plug-and-play) cord assemblies. Also needed is to pursue with a “Chip” Manufacturer about the costs to manufacture a new solid state chip that is mounted in a waterproof container.
The control will work with ambient light sensors but, Infrared receiver sensors will work better. Because they respond somewhat to ambient light, it is best to use a ‘cold mirror’ to filter out the ambient part. Also, to be water proof, the assembly needs a lens; possibly, the lens can be replaced with the mirror, otherwise they can be piggybacked.
In theory, this control will operate by timing alone but, in case it doesn’t, the perimeter sensors come into play to take up the slack. The 6th sensor is to keep the solar arrays out of the shade of other arrays.
Precision is the name of the game; I’m talking 4 digit accuracy [.0123], for everything involved.
// Here is a note to Arrow showing the existing prototype that I will be replacing...Solid State is desired.
Word file to Paul
The timing is to be replaced with Microcontroller and GPS.
Part of the ‘system’ is the separate sensor assembly. The new sensor assembly also needs to be produced in a Plug-and-Play assembly with several extension (plug-and-play) cord assemblies. Also needed is to pursue with a “Chip” Manufacturer about the costs to manufacture a new solid state chip that is mounted in a waterproof container.
The control will work with ambient light sensors but, Infrared receiver sensors will work better. Because they respond somewhat to ambient light, it is best to use a ‘cold mirror’ to filter out the ambient part. Also, to be water proof, the assembly needs a lens; possibly, the lens can be replaced with the mirror, otherwise they can be piggybacked.
In theory, this control will operate by timing alone but, in case it doesn’t, the perimeter sensors come into play to take up the slack. The 6th sensor is to keep the solar arrays out of the shade of other arrays.
Precision is the name of the game; I’m talking 4 digit accuracy [.0123], for everything involved.
12
9 F 3
6
Orifices
- O Sun
| | Light beams
v v
- O Orifice #1
| |
v v
- O Orifice #2
| |
v v
- OOO Sensors
Front Right side view
O
O O O
O
Bottom view
I believe the control system can be miniaturized with smaller sensors clustered tighter together and, replacing the small bore tube with a very small orifice.
The relays can be replaced with a programmable microcontroller and the second Time Clock replaced with a counting scheme. The first clock can be replaced with GPS.
THEORY
TC-1 Day/Night
Daytime N/C contact supplies power to the common terminal of Relay A1 (West). D/N relay (Face-center sensor)_ when no light on sensor (LED on)-not on control-motor must run to bring light on face sensor. When D/N relay switches, n/c contact passes voltage, thru a diode, to the common terminal of Relay A1 (West). It also passes voltage to electronic timers T1 & T2. Timer LED’s flashes off, momentarily, all other LED’s are ON continuously when on control point.
(If D/N relay does not switch-not on control, motor continuously drives to the west_ how to get back to control?
From start, the system MUST BE aimed at the sun, so as to be on control.
[repeat] (When D/N relay switches, n/c contact passes voltage, thru a diode, to the common terminal of Relay A1 West). It also passes voltage to electronic timers T1 & T2.
T1 drives motor westward- through timing-
Relays D/N {Face}, West, East, Up, Down are functions of their respective sensors:
Relay D/N {Face} common contact is powered thru time clock TC-1 contact n/c for daytime control.
Relay A1 (West) common contact is powered thru D/N {Face} relay contact n/o for daytime control.
D/N {Face} relay contact n/c only makes circuit when unit is OFF control point, so as to not conflict with normal operation during the day.
Relay A1 (West) common contact passes thru to relay contact n/c to energize motor ⃝M-A (West).
Relay A2 (East) common contact is powered thru to relay contact n/c to energize motor ⃝M-A (East).
Relay E1 (Up) & Relay E2 (Down) common contacts are powered thru a Flip/Flop, which in turn is powered by D/N {Face} relay contact n/c for daytime control.
Timer T1 contact n/c provides timed-control for daytime control of ⃝M-A (West).
Timer T2 contact n/c provides timed-control for daytime control of ⃝M-E (UP & Down) thru a.m.-p.m. TC-2.
Sensor ҈#1 LED is lighted when no light is on ҉sensor (Relay A1 contact n/c provides voltage to ⃝M-A.
Sensor ҈#1 LED is out when light is shining on ҉sensor. Voltage is removed from motor ⃝M-A.
Notes:
Therefore, on the equinox and for several days before and after the equinox, the length of day will range from about 12 hours and six and one-half minutes at the equator, to 12 hours and 8 minutes at 30 degrees latitude, to 12 hours and 16 minutes at 60 degrees latitude.
Seasons are caused by the fact that the Earth is tilted on its axis by 23.5°. (23.5/365=0.0425)
6060**24365=31,536,000 [2.72/day]; (approx. 3 up & 3 down). This should accommodate the Solstices and Equinoxes.
If you have any questions, I will be more than glad to answer them.
Warm regards,
Jack
P.S. Please let me know if you can access the web pages.
// When certified, I will be seeking funding on Indiegogo...watch for it!