System for work cycle detection
A payload control system includes a tool position sensor, a boom lift sensor, and a boom swing sensor. A controller is configured to determine a segment of a work cycle based upon the tool position, the boom lift, and the boom swing signal, and determine a payload moved by the tool during the segment of the work cycle.
1. A payload control system comprising:
a tool position sensor system configured to provide a tool position signal indicative of a position of a tool;
a boom lift sensor system configured to provide a boom lift signal indicative of a boom lifting velocity;
a boom swing sensor system configured to provide a boom swing signal indicative of a boom swinging velocity; and
a controller configured to:
receive the tool position signal;
receive the boom lift signal;
receive the boom swing signal;
determine a position of the tool based upon the tool position signal;
determine a boom lifting velocity based upon the boom lift signal;
determine a boom swinging velocity based upon the boom swing signal;
determine a beginning of a swing-to-dump segment of a work cycle of the tool based at least in part upon the tool being in a tool carry position, the boom lifting velocity exceeding a predetermined lift velocity, and the boom swinging velocity exceeding a predetermined swing velocity; and
determine a payload moved by the tool during the swing-to-dump segment of the work cycle.
2. The payload control system of claim 1 , wherein the controller is configured to end the swing-to-dump segment of the work cycle upon either of: a) the tool being moved away from the tool carry position, and b) the boom lifting velocity being less than a predetermined rate for a predetermined period of time and the boom swinging velocity being less than a predetermined rate for a predetermined period of time.
3. The payload control system of claim 1 , wherein the controller is configured to determine a plurality of tool position signals, boom lift signals, and boom swing signals during the swing-to-dump segment of the work cycle, each tool position signal, boom lift signal, and boom swing signal collectively defining a data sample.
4. The payload control system of claim 3 , wherein the controller is configured to log a threshold number of data samples taken during the swing-to-dump segment of the work cycle.
5. The payload control system of claim 4 , wherein the threshold number of data samples is approximately 50.
6. The payload control system of claim 4 , wherein the controller is configured to generate a data accuracy warning signal based upon logging of a predetermined number of reduced confidence instances and discard the data samples for the work cycle based upon receipt of a command signal from an operator.
7. The payload control system of claim 3 , wherein the controller logs a plurality of data samples during each swing-to-dump segment of the work cycle and uses an optimization algorithm on the threshold number of data samples upon completion of the swing-to-dump segment of the work cycle to calculate the payload.
8. The payload control system of claim 3 , wherein the controller is further configured to determine a boom lifting acceleration and a boom swinging acceleration, and a data sample is rejected if one of the boom lifting acceleration and the boom swinging acceleration exceeds a respective predetermined rate.
9. The payload control system of claim 3 , wherein the controller is further configured to determine a boom angle, and a data sample is rejected if the boom angle exceeds a predetermined angle.
10. A controller implemented method of determining a payload moved by a machine, comprising:
sensing whether a tool is in a tool carry position;
sensing a boom lifting velocity;
sensing a boom swinging velocity;
determining a beginning of a swing-to-dump segment of a work cycle of the tool based at least in part upon the tool being in the tool carry position, the boom lifting velocity exceeding a predetermined lift velocity, and the boom swinging velocity exceeding a predetermined swing velocity; and
determining a payload moved by the tool during the swing-to-dump segment of the work cycle.
11. The method of claim 10 , further including ending the swing-to-dump segment of the work cycle upon either of: (a) the tool being moved from the tool carry position; and (b) the boom lifting velocity being less than a predetermined rate for a predetermined period of time and the boom swinging velocity being less than a predetermined rate for a predetermined period of time.
12. The method of claim 10 , further including determining a plurality of tool position signals, boom lift signals, and boom swing signals during the swing-to-dump segment of the work cycle, each tool position signal, boom lift signal, and boom swing signal collectively defining a data sample.
13. The method of claim 12 , further including averaging a threshold number of data samples taken during the swing-to-dump segment of the work cycle.
14. The method of claim 13 , further including providing a warning signal to an operator, providing an operator command signal, and discarding payload measurement for a swing-to-dump segment of the work cycle.
15. The method of claim 12 , further including logging a plurality of data samples during each swing-to-dump segment of the work cycle and using an optimization algorithm with the plurality of data samples to estimate a payload upon completion of the swing-to-dump segment of the work cycle.
16. A machine comprising:
a tool;
a linkage pivotally connected to the tool, the linkage including a boom member;
a tool position sensor system configured to provide a tool position signal indicative of a position of the tool;
a boom lift sensor system configured to provide a boom lift signal indicative of a boom lifting velocity;
a boom swing sensor system configured to provide a boom swing signal indicative of a boom swinging velocity; and
a controller configured to:
receive the tool position signal;
receive the boom lift signal;
receive the boom swing signal;
determine a position of the tool based upon the tool position signal;
determine a boom lifting velocity based upon the boom lift signal;
determine a boom swinging velocity based upon the boom swing signal;
determine a beginning of a swing-to-dump segment of the work cycle of the tool based at least in part upon the tool being in a tool carry position, the boom lifting velocity exceeding a predetermined lift velocity, and the boom swinging velocity exceeding a predetermined swing velocity; and
determine a payload moved by the tool during the swing-to-dump segment of the work cycle.