Numerical control device, numerical control system, program, and numerical control method
AssigneeFanuc Corporation
InventorDaiki KIKKAWA
Life of this patent
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Abstract
This numerical control device comprises a distance control unit, a filter unit, a determination unit, and a setting unit. The distance control unit controls the distance between a first object and a second object to be close to a target distance. The filter unit filters a signal indicating the distance. The determination unit determines, on the basis of the target distance, a time constant obtained from the relationship between the distance and an output signal from a distance sensor that measures the distance. The setting unit sets a time constant of the filter to the time constant determined by the determination unit.
Claims6
A numerical control device, comprising:
- a distance control unit configured to perform control to cause a distance between a first object and a second object to approach a target distance;
- a filter unit configured to apply a signal indicating the distance to a filter;
- a determination unit configured to determine a time constant based on the target distance, the time constant being obtained from a relationship between the distance and an output signal of a distance sensor that measures the distance;
- and
- a setting unit configured to set a time constant of the filter to the time constant determined by the determination unit.
A numerical control system comprising a distance sensor and a numerical control device,
- the distance sensor being configured to output a first signal that changes in accordance with a distance between a first object and a second object,
- the numerical control system comprising a conversion unit that converts the first signal into a second signal indicating the distance,
- the numerical control device comprising:
- a distance control unit that performs control to cause the distance to approach a target distance;
- a filter unit that applies the second signal to a filter;
- a determination unit that determines a time constant based on the target distance, the time constant being obtained from a relationship between the first signal and the distance;
- and
- a setting unit that sets a time constant of the filter to the time constant determined by the determination unit.
A non-transitory computer readable medium storing therein a program for causing a processor included in a numerical control device to function as units comprising:
- a control unit that performs control to cause a distance between a first object and a second object to approach a target distance;
- a filter unit that applies a signal indicating the distance to a filter;
- a determination unit that determines a time constant based on the target distance, the time constant being obtained from a relationship between the distance and an output signal of a distance sensor that measures the distance;
- and
- a setting unit that sets a time constant of the filter to the time constant determined by the determination unit.
A numerical control method, comprising:
- performing control to cause a distance between a first object and a second object to approach a target distance;
- setting a time constant of a filter to the time constant determined based on a relationship between the distance and an output signal of a distance sensor that measures the distance and the target distance;
- and
- applying a filter to a signal that indicates the distance.
Dependencies are inferred from the claim text.