{"id":8458,"date":"2023-11-13T06:52:37","date_gmt":"2023-11-13T05:52:37","guid":{"rendered":"https:\/\/dronesonen.usn.no\/?p=8458"},"modified":"2023-11-13T07:52:32","modified_gmt":"2023-11-13T06:52:32","slug":"hydroplant-subsystems-week-12","status":"publish","type":"post","link":"https:\/\/dronesonen.usn.no\/?p=8458","title":{"rendered":"Hydroplant Subsystems – Week 12"},"content":{"rendered":"\n
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Welcome back! This week has been more testing of the system, fixing small bugs, calibrating different part of the system such as plant mover and plant information node. We have tested several part of the system. We are exited to make videoes and pictures of the whole system next week to show what we have done!
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Shahin Ostadahmadi<\/h2>\n\n\n\n

Along with the team, we did several tests of the whole system over and over.<\/p>\n\n\n\n

Nutrition controller<\/h4>\n\n\n\n

I completed the software side for the nutrition controller and prepared everything for testing. I connected all components, including pipes, valves, nutrition and water pumps, and sensors, and was ready to test. However, we faced an issue with the valves requiring a minimum pressure of 0.2 bar to function, which wasn’t feasible due to our nutrition box’s height limitations. After attempting to modify the valves and failing, I ordered new ones that don’t require a minimum pressure.<\/p>\n\n\n\n

We were able to test parts of the system, but encountered another problem: the water input exceeded the outflow. Fortunately, we had a Non-contact Capacitive Liquid Level Sensor. I planned to use an AND-chip connected to the liquid level sensor and to the relay which controls the water pump, so when the water reaches a certain level, the pumps will shut down until the water is below the sensor. Ivan arrived at the perfect time! we tried to integrate the sensor and AND gate into the system. Despite multiple attempts, it didn’t work initially due to the sensor requiring an analog-to-digital converter (ADC). We used an old Arduino to convert the analog signal to digital, which resolved the issue. After four hours of testing, everything finally worked.<\/p>\n\n\n\n

Library<\/h4>\n\n\n\n

I debugged almost the whole system for three hours to look for the wired behavior in our system when I was testing the nutrition controller. Finally, I found out that there was an issue with the Equipment which is a custom container that can hold Entities (Sensors, Actuators, and Logic controller). The class Equipment has interfaces such as:<\/p>\n\n\n\n