EQUIPMENT STATE DETECTION APPARATUS, EQUIPMENT STATE DETECTION METHOD, AND COMPUTER-READABLE RECORDING MEDIUM

• US 20120191414A1
• Filed: 02/22/2012
• Published: 07/26/2012
• Est. Priority Date: 10/30/2009
• Status: Abandoned Application

• Current Assignee: Omron Corporation
• Original Assignee: Omron Corporation
• Inventors: TAKIGUCHI, Hideaki, MISUMI, Shuichi, YAMAMURA, Kenji
• Application Number:
  US13/402,060
• Publication Number:
  US 20120191414A1
• Time in Patent Office: Days
• US Class Current: 702/182
• CPC Class Codes: G05B 19/406 characterised by monitoring or safety G05B19/19 takes precedence
• CPC Class Codes: G05B 19/4184 characterised by fault tolerance, reliability of production system
• CPC Class Codes: G05B 2219/37348 Power, wattmeter voltage times current
• CPC Class Codes: G07C 3/02 Registering or indicating working or idle time only
• CPC Class Codes: Y02P 90/02 Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Abstract

In order to detect an operating state of equipment, when a plate material reaches a support part, a press machine outputs a start signal to move a press part downward. An input receiver receives input of the start signal. An operating detector detects that the press machine is in an operating state. When the press machine moves the press part upward, and shaping of the plate material ends, the press machine outputs a standby signal. The input receiver receives input of the standby signal. The detector detects that the press machine is in a standby state. When the plate material is again conveyed onto a roller conveyer from the support part, the press machine outputs a stop signal. The input receiver receives input of the stop signal. The detector detects that the press machine is in a stop state.

Claims

1. An equipment state detection apparatus configured to detect an operation state of equipment, the operation state of the equipment having an operating state in which work is being performed, and a non-operating state in which work is not being performed, the equipment state detection apparatus comprising:

a status acquirer that acquires real-time state data regarding the operation state of the equipment;

an operating detector that detects when the equipment is in the operating state, based on the state data acquired by the status acquirer, and that detects when the equipment is in the non-operating state, based on the state data acquired by the status acquirer.

2. The equipment state detection apparatus according to claim 1, wherein

the status acquirer includes a start signal start signal receiver that receives an input of a start signal outputted by the equipment when the work is started, and an end signal receiver that receives an input of an end signal outputted by the equipment when the work ends,

the operating detector detects that the equipment is in the operating state by the start signal received by the start signal receiver, and

the operating detector detects that the equipment is in the non-operating state by the end signal received by the end signal receiver.

3. The equipment state detection apparatus according to claim 2, wherein

the non-operating state includes a standby state in which the work pauses, and a stop state in which the work stops,

the end signal receiver includes a standby signal receiver that receives an input of a standby signal outputted by the equipment when the work pauses, and a stop signal receiver that receives an input of a stop signal outputted by the equipment when the work stops, and

the operating detector detects that the equipment is in the standby state by the standby signal received by the standby signal receiver, and detects that the equipment is in the stop state by the stop signal received by the stop signal receiver.

4. The equipment state detection apparatus according to claim 2, wherein

the status acquirer includes a measurer that measures a physical amount varying in accordance with the operation state of the equipment, and a threshold setter that sets a predetermined threshold, and

when the operating detector is disabled to acquire at least any one of the start signal and the end signal, the operating detector compares the physical amount measured by the measurer with the predetermined threshold set by the threshold setter to detect the operation state of the equipment.

5. The equipment state detection apparatus according to claim 1, wherein

the status acquirer includes a measurer that measures a physical amount varying in accordance with the operation state of the equipment, and a threshold setter that sets a predetermined threshold, and

the operating detector compares the physical amount measured by the measurer with the predetermined threshold set by the threshold setter to detect the operation state of the equipment.

6. The equipment state detection apparatus according to claim 5, wherein

the physical amount includes statistics converted based on the physical amount measured.

7. The equipment state detection apparatus according to claim 5, wherein

the physical amount varies periodically, and

the operating detector includes a comparing determiner that compares a waveform of a first cycle and a waveform of a second cycle different from the first cycle to determine whether or not a difference in waveform is within a predetermined range.

8. The equipment state detection apparatus according to claim 7, wherein

the operating detector compares the waveform in the operating state in the waveform of the first cycle, and the waveform in the operating state in the waveform of the second cycle.

9. The equipment state detection apparatus according to claim 1, wherein

the equipment state detection apparatus is connectable to a server through a network, and

the equipment state detection apparatus includes:

an integrator that collects the operation state of the equipment detected by the operating detector; and

a notifier that notifies the operation state of the equipment collected by the integrator to the server at predetermined timing.

10. A method of equipment state detection for enabling an operation state of an equipment to be detected, the operation state of the equipment having an operating state in which work is being performed, and a non-operating state in which work is not being performed, the equipment state detection method comprising the steps of:

acquiring real-time state data regarding the operation state of the equipment;

detecting when the equipment is in the operating state, based on the acquired state data; and

detecting when the equipment is in the non-operating state, based on the acquired state date.

11. A non-transitory computer-readable recording medium storing a program for detecting an operation state of equipment, when executed, causes the computer to perform:

acquiring real-time state data regarding the operation state of the equipment including an operating state in which operation is being performed, and a non-operating state in which the work is not being performed;

detecting when the equipment is in the operating state, based on the acquired state data; and

detecting when the equipment is in the non-operating state, based on the acquired state data.