Recently, the development team has begun the process of finalizing the new Maintenance Assistant CMMS API (Application Programming Interface). The CMMS API is designed to allow other programs to directly communicate with the Maintenance Assistant CMMS. These external programs can then use the CMMS data natively for their own purposes. This external connection will be really valuable for customers of MA CMMS because, for example, it will allow financial software programs to keep track of purchases made through the CMMS and it will allow machines to push their data directly to the CMMS (known as Machine to Machine (M2M) communication).
My experiment with the CMMS API
Over the last few weeks, I have been trying out the capability of the API to be used for direct connection with machines. I wanted to do an experiment using the most inexpensive equipment that might be realistically used in an industrial environment. I settled on a Beaglebone Black, and a temperature sensor for a combined cost of under $60. In this blog I want to show you that I have been able to send temperature data to the CMMS and then use this data as a trigger for scheduled maintenance.
The Beaglebone Black is an inexpensive Linux computer (~$55) available from many suppliers including Adafruit, Creatronic and Sparkfun . The Temperature sensor I used was a TMP36 (~$3) which has an output voltage that is proportional to temperature.
The result was a continuous stream of temperature values recorded in the CMMS, with each separated by about 3 seconds as shown in the image below. The Chief Developer and I were both very pleased with this result.
Then, to make sure the concept was really useful, I wanted to set a scheduled maintenance that was triggered by a high temperature. This might be used to indicate that an air conditioner inspection should be conducted. I set up a scheduled maintenance for “My office”, and set it to trigger anytime the temperature rose above 35 C. The work instruction for this scheduled maintenance was fairly simple: “Check the Air conditioner – MA CMMS API experiment”.
To fool the sensor into thinking it was warmer than it really was I took the device home to where I had a hair dryer. Under the hot air of the hair dryer the measured temperature rose and, as expected, a work order was generated. Using the CMMS the technician would be notified of the work order, and could inspect the temperature readings, all from the CMMS. This whole process happened automatically, without the maintenance manager, or operator, or office tenant being involved at any time.
In addition to using the meter readings to trigger work orders, technicians and root cause investigators might use the recorded history of power use to help diagnose the fault and put in place a permanent solution. If needed, the data from other sensors could also be used to help with root cause analysis. In the air conditioner example, inlet and outlet air pressure sensors and humidity sensors may provide valuable information that helps to make a rapid diagnosis.
Machine to Machine communication and CMMS integration
I can think of many applications where this type of Machine 2 Machine communication technology will be incredibly valuable. Consider a vehicle that reports its odometer reading on a regular basis over a mobile phone 3G internet connection. Then, a work order can be generated for its regular service every 10,000 km. Or consider a power meter on an air conditioner that is used to trigger a work order when the air conditioner is working too hard. Perhaps it might be used to monitor the vibration levels of a rotating machine. Maybe, it is just an opportunity to record the operating condition of a machine over time, without ever going to the next step of using the data to trigger a scheduled maintenance.
The MA CMMS API is coming soon. I think it will be brilliant and very useful. It will be available for customers in selected pricing tiers as part of the MA Connect™ package. If you have any use cases you are looking forward to I’d love to hear them in the comments below.
P.S. Thanks to the Chief Developer Bob, and developer Jason, for their help in making this work.
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