Monitoring system, monitoring device, and monitoring method

Abstract

To provide a monitoring device that can easily manage operation statuses of multiple production facilities in a unified manner.SOLUTION: A monitoring system includes: a measuring device which is provided between a production facility and a power receiving point, and measures current data utilized by the production facility; and a monitoring device. The monitoring device receives measurement data from the measuring device, and determines that the production facility is in an operating state when a current value in the measurement data is greater than a first threshold. The first threshold is defined on the basis of the current data measured in a state in which the production facility is operated in advance.SELECTED DRAWING: Figure 1

Claims

1. A measuring instrument is installed between the production equipment and the power receiving point to measure the current data used by the production equipment, Equipped with a monitoring device, The aforementioned monitoring device is If the current value in the current data measured by the measuring instrument is greater than the first threshold, it is determined that the production equipment is in operation. The first threshold is determined based on the current data measured in advance while the production equipment was in operation. The aforementioned monitoring device is Regarding a second threshold greater than the first threshold, if the current value in the current data is greater than the second threshold, it is determined that the production equipment is in a net operating state. The net operating time is calculated by accumulating the time during which the production equipment is determined to be in a net operating state. The monitoring device determines whether the production equipment will continue to operate or terminate based on the time elapsed between the current value in the current data falling below the second threshold and then rising above the second threshold again, when the current value in the current data falls below the second threshold and then rises above the second threshold again. Monitoring system.

2. The aforementioned monitoring device is The operating time is calculated by accumulating the time determined to be the operating state. The monitoring system according to claim 1.

3. The aforementioned monitoring device is Based on the aforementioned net operating time, the line utilization rate of the production equipment is calculated. A monitoring system according to either claim 1 or claim 2.

4. A first measuring instrument is provided between the first production equipment and the first power receiving point of the first production equipment, and measures the first current data used by the first production equipment. A second measuring instrument is provided between the second production equipment and the second power receiving point of the second production equipment, and measures the second current data used by the second production equipment. Equipped with a monitoring device, The aforementioned monitoring device is If the first current value in the first current data measured by the first measuring instrument is greater than the third threshold, it is determined that the first production equipment is in operation. If the second current value in the second current data measured by the second measuring instrument is greater than the fourth threshold, it is determined that the second production equipment is in operation. The third threshold is determined based on the first current data measured in advance while the first production equipment was in operation. The fourth threshold is determined based on the second current data measured in advance while the second production equipment was in operation. The aforementioned monitoring device is With respect to a fifth threshold greater than the third threshold, if the first current value in the first current data is greater than the fifth threshold, it is determined that the first production equipment is in a net operating state. The net operating time of the first production equipment is calculated by accumulating the time during which the first production equipment is determined to be in a net operating state. The monitoring device, when the first current value in the first current data falls below the fifth threshold and then rises above the fifth threshold again, determines whether the net operating state of the first production equipment will continue or end based on the time elapsed from when the first current value in the first current data falls below the fifth threshold until it rises above the fifth threshold again. The aforementioned monitoring device is With respect to a sixth threshold greater than the fourth threshold, if the second current value in the second current data is greater than the sixth threshold, it is determined that the second production equipment is in a net operating state. The net operating time of the second production equipment is calculated by accumulating the time during which the second production equipment is determined to be in a net operating state. The monitoring device determines whether the net operating state of the second production equipment will continue or terminate, based on the time elapsed between the second current value in the second current data falling below the sixth threshold and then rising above the sixth threshold again. Monitoring system.

5. A monitoring device that monitors the production equipment based on current data used by the production equipment measured by a measuring instrument installed between the production equipment and the power receiving point, The aforementioned monitoring device is If the current value in the current data measured by the measuring instrument is greater than the first threshold, it is determined that the production equipment is in operation. The first threshold is determined based on the current data measured in advance while the production equipment was in operation. The aforementioned monitoring device is Regarding a second threshold greater than the first threshold, if the current value in the current data is greater than the second threshold, it is determined that the production equipment is in a net operating state. The net operating time is calculated by accumulating the time during which the production equipment is determined to be in a net operating state. The monitoring device determines whether the production equipment will continue to operate or terminate based on the time elapsed between the current value in the current data falling below the second threshold and then rising above the second threshold again, when the current value in the current data falls below the second threshold and then rises above the second threshold again. monitoring equipment.

6. A process for measuring current data used by the production equipment, which is installed between the production equipment and the power receiving point, The process includes determining that the production equipment is in operation if the current value in the current data is greater than a first threshold, The first threshold is determined based on the current data measured in advance while the production equipment was in operation. Regarding a second threshold greater than the first threshold, if the current value in the current data is greater than the second threshold, it is determined that the production equipment is in a net operating state. The net operating time is calculated by accumulating the time during which the production equipment is determined to be in a net operating state. When the current value in the current data falls below the second threshold and then rises above the second threshold again, the system determines whether the production equipment continues to operate or terminates based on the time elapsed between the current value falling below the second threshold and rising above the second threshold again. Monitoring method.

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