Methods and systems for the industrial internet of things
A method for data collection, processing, and utilization of signals with a platform monitoring at least a first element in a first machine in an industrial environment includes obtaining, automatically with a computing environment, at least a first sensor signal and a second sensor signal with a local data collection system that monitors at least the first machine and connecting a first input of a switch of the local data collection system to a first sensor and a second input of the switch to a second sensor in the local data collection system, switching between a condition in which a first output of the switch alternates between delivery of at least the first sensor signal and the second sensor signal and a condition in which there is simultaneous delivery of the first sensor signal from the first output and the second sensor signal from a second output of the switch.
1. A method for data collection, processing, and utilization of signals with a platform monitoring at least a first element in a first machine in an industrial environment, the method comprising:
obtaining, automatically with a computing environment, at least a first sensor signal and a second sensor signal with a local data collection system that monitors at least the first machine;
connecting a first input of a switch of the local data collection system to a first sensor and a second input of the switch to a second sensor in the local data collection system;
switching between a condition in which a first output of the switch alternates between delivery of at least the first sensor signal and the second sensor signal and a condition in which there is simultaneous delivery of the first sensor signal from the first output and the second sensor signal from a second output of the switch; and
continuously monitoring at least a third input of the switch with an alarm having a pre-determined trigger condition when the third input is unassigned to any of multiple outputs on the switch, wherein the local data collection system manages data collection bands that define a specific frequency band and at least one of a group of spectral peaks, a true-peak level, a crest factor derived from a time waveform, and an overall waveform derived from a vibration envelope, and wherein the local data collection system creates data acquisition routes based on hierarchical templates that each include the data collection bands related to machines associated with the data acquisition routes.
2. The method of claim 1 wherein the first sensor signal and the second sensor signal comprise continuous vibration data from the industrial environment.
3. The method of claim 1 wherein the second sensor in the local data collection system is connected to the first machine.
4. The method of claim 1 wherein the second sensor in the local data collection system is connected to a second machine in the industrial environment.
5. The method of claim 1 further comprising comparing, automatically with the computing environment, relative phases of the first and second sensor signals.
6. The method of claim 1 wherein the first sensor is a single-axis sensor and the second sensor is a three-axis sensor.
7. The method of claim 1 wherein at least the first input of the switch includes internet protocol front-end signal conditioning for improved signal-to-noise ratio.
8. The method of claim 1 wherein the local data collection system provides high-amperage input capability using solid state relays.
9. The method of claim 1 wherein the local data collection system includes an external voltage reference for an A/D zero reference that is independent of a voltage of the first sensor and the second sensor.
10. The method of claim 1 wherein the local data collection system includes a phase-lock loop band-pass tracking filter that obtain slow-speed RPMs and phase information.
11. The method of claim 1 further comprising digitally deriving phase using on-board timers relative to at least one trigger channel and at least one of multiple inputs on the switch.
12. The method of claim 1 further comprising auto-scaling with a peak-detector using a separate analog-to-digital converter for peak detection.
13. The method of claim 1 further comprising routing at least one trigger channel that is one of raw and buffered into at least one of multiple inputs on the switch.
14. The method of claim 1 further comprising increasing input oversampling rates with at least one delta-sigma analog-to-digital converter to reduce sampling rate outputs and to minimize anti-aliasing filter requirements.
15. The method of claim 14 wherein the first sensor signal and the second sensor signal comprise continuous vibration data from the industrial environment.
16. The method of claim 14 wherein the second sensor in the local data collection system is connected to the first machine.
17. The method of claim 14 wherein the second sensor in the local data collection system is connected to a second machine in the industrial environment.
18. The method of claim 14 further comprising comparing, automatically with the computing environment, relative phases of the first and second sensor signals.
19. The method of claim 14 wherein the first sensor is a single-axis sensor and the second sensor is a three-axis sensor.
20. The method of claim 14 wherein at least the first input of the switch includes internet protocol front-end signal conditioning for improved signal-to-noise ratio.