PID: LB22-04.1
Analog Irrigation Controller
Client project with requirements to build an electronic irrigation controller which could perform actions of activating up to 20 irrigation zones with unknown voltage ranges as well as calculating and controlling pesticide injection based on flow rates that were created by a venturi syphon.
The client brief included requirements that the boards be analog and human repairable.
Quinton Casburn
Solution:
A circuit board was designed which was based on 74 series logic chips and could accept multiple low AC voltage ranges.
The system was built with DIP packages per the clients request for human reparability, and all of the systems outputs where isolated from the logic centers for maximum compatibility with unknown control voltages that were used in the field.
Circuit blocks were utilized in this design and labeled clearly on the final board to best assist in field repairs.
The system required minimal changes to the existing infrastructure for integration. The only required change was to install a flow meter which would send a single pulse back to the controller for every 1oz of flow.
Quinton Casburn
Documentation
Ample documentation was supplied with the completed project which included schematics, instruction manuals, troubleshooting procedures and installation guidelines.
All of the components selected for the board were off the shelf and readily available with low tolerances for best compatibility with in-field repairs and unknown stock on hand.
Quinton Casburn
Prototyping & Production
Indicial units were assembled by hand in-house and tested against multiple irrigation system types that were simulated in the lab.
A production supply chain was devised and presented to the client though the final method of production of the units was the responsibility of the client.
Quinton Casburn
PID: PGC14-04.2
Oil FieId IOT Access Control
Point Gate Control (PGC) was an IOT solution built for use in the south Texas oil fields. The PGC device was designed to be installed inside any standard automatic gate access control system. It automated the process of creating logs for the arrivals and departures of trucks to a drill site by using an SMS message from the truck driver to log entry and exit as well as triggering the gate to open for authorized drivers.
These logs were instantly available through an online portal which the head offices could view at any time and could trigger remote access from.
The system was built on the AT&T wireless network and communicated back to a hosted backend database.
Quinton Casburn