System for monitoring machinery and method for monitoring machinery
AssigneeNsk Ltd.
InventorsMasato OHORI, Masakazu SUGINOHARA, Takayuki KANEMATSU, Keigo ABE, Kunihiko SASAO
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Abstract
A mechanical equipment monitoring system includes a sensor, an actuator, a communication unit that transmits a trigger signal when the actuator is in a suitable state for the sensor to detect an operational state of the actuator, an information collection unit that collects, from the sensor, operational state data which indicates the operational state detected by the sensor upon receiving the trigger signal from the communication unit, and an information processing device that monitors the actuator based on the operational state data collected by the information collection unit.
Claims21
1-34. (canceled)
A mechanical equipment monitoring system comprising:
- a sensor,
- a mechanical equipment including an actuator and a communication unit, the communication unit configured to send a trigger signal when the actuator is in a suitable condition for the sensor to detect an operational state of the actuator;
- an information collection device for collecting from the sensor operational state data that indicates the operational state detected by the sensor upon receiving the trigger signal from the communication unit;
- and
- an information processing device for monitoring the actuator based on the operational state data collected by the information collection device, and
- wherein the suitable condition is a state in which the actuator is operated at a constant speed over a predetermined period, a state in which the actuator accelerates to a certain speed from a stop, keeps the certain speed over a predetermined period and then decelerates to stop, a state in which an amount of variation in a load applied to the actuator is equal to or less than a predetermined value, or a state in which an amount of variation in temperature of the actuator is equal to or less than a preset value.
A mechanical equipment monitoring method for use with a mechanical equipment monitoring system, the mechanical equipment monitoring system including a sensor, a mechanical equipment having an actuator and a communication unit, an information collection device, and an information processing device, the mechanical equipment monitoring method comprising:
- a signal transmission step of causing the communication unit to transmit a trigger signal to the information collection device when the actuator is in a suitable condition for the sensor to detect an operational state of the actuator;
- a data collection step of collecting, from the sensor, operational state data indicating the operational state detected by the sensor when the information collection device receives the trigger signal;
- and
- a monitoring step for causing the information processing device to perform monitoring of the actuator based on the operational state data collected by the information collection device, and
- wherein the suitable condition is a state in which the actuator is operated at an equal speed over a predetermined period, a state in which the actuator increases its speed from a stop, keeps the speed over a certain period and then decreases the speed to stop, a state in which an amount of variation in a load applied to the actuator is equal to or less than a predetermined value, or a state in which an amount of variation in temperature of the actuator is equal to or less than a preset value.
Dependencies are inferred from the claim text.