Display control device and production status display method

Abstract

To provide a technique allowing for easily grasping a production situation of a plurality of installations in their entirety by improving browsability by use of a production indicator, in a display control device.SOLUTION: A display control device for displaying a production situation of a plurality of installations, comprises an acquiring section that acquires start timing of processing by an installation, an installation-operating information generating section that generates installation-operating information including cycle time and shutdown time of the installation using the start timing acquired, and a production-indicator generating section that generates a plurality of production indicators including a first loss of money amount caused by an occurrence of the shutdown time using the installation-operating information generated so as to generate displaying data including the plurality of production indicators generated.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to a display control device and a production status display method. [Background technology]

[0002] A display method for visualizing the impact of the operating status of manufacturing equipment on productivity is known (for example, Patent Document 1). This display method generates a bar graph showing the elapsed time from the start to the end of manufacturing processing for each of multiple pieces of manufacturing equipment belonging to a selected process, and displays these bar graphs side by side on an operating status screen. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2017 / 098619 Summary of the Invention [Problem to be solved by the invention]

[0004] When the number of target manufacturing facilities increases, the display area for displaying the graph also becomes larger, which makes it difficult to grasp the operating status of all the manufacturing facilities and to identify the manufacturing facilities that need improvement. [Means for solving the problem]

[0005] The present disclosure can be realized in the following forms.

[0006] (1) According to one aspect of the present disclosure, there is provided a display control device for displaying the production status of a plurality of facilities. The display control device includes: This is the timing when Start timing a stop-related timing that is a timing at which the processing by each of the plurality of facilities is stopped or a timing at which a predetermined time has elapsed since the processing by each of the plurality of facilities is started; an acquisition unit that acquires the acquired start timing; and the stop-related timing.and a production index generation unit that uses the generated equipment operation information to generate production indexes for each of the plurality of pieces of equipment, the production indexes including a first amount of loss caused by the occurrence of the downtime, and generates display data that collectively displays the generated production indexes for each of the plurality of pieces of equipment. According to this type of display control device, by using the production index as the display data for the production status of the multiple facilities, the visibility is improved and the production status of the multiple facilities as a whole can be easily grasped. By using the first lost amount as the production index, the effect of improving the equipment downtime can be visually recognized in monetary terms. (2) In the display control device of the above aspect, the production index generation unit may further generate a production index for each of the plurality of pieces of equipment that includes a second loss amount caused by a delay in the cycle time. According to the display control device of this aspect, by using the second lost amount as the production index, the effect of improving the cycle time can be visually recognized in monetary terms. (3) In the display control device of the above aspect, the production index generation unit may generate the display data including equipment information indicating equipment that has a high priority for improvement in the production index among the plurality of equipment. According to the display control device of this embodiment, it is possible to easily grasp which of a plurality of pieces of equipment needs to be improved. (4) In the display control device of the above aspect, the production index generating unit may further generate the display data including numerical values ​​and graphs that statistically indicate the production indexes. According to this type of display control device, it becomes easy to evaluate the production status of a plurality of facilities from multiple angles. (5) In the display control device of the above aspect, the production index generation unit may generate a cumulative total of the production index per unit period and a daily trend of the production index as numerical values ​​or graphs that statistically show the production index. This type of display control device makes it easy to grasp the overall production status of multiple facilities by displaying the cumulative total of production indices per unit period. By displaying the daily trends in production indices, it becomes easy to grasp changes in production indices due to improvements or problem occurrences. (6) In the display control device of the above form, when the production index generation unit receives a selection operation to display either the display data including a production index related to monetary value among the production indexes generated for each of the plurality of pieces of equipment, or the display data including a production index related to the operating status of the equipment among the production indexes generated for each of the plurality of pieces of equipment, the production index generation unit may generate the display data corresponding to the selection operation. According to this type of display control device, the user can easily view the desired production index. 。 The present disclosure can be realized in various forms other than a method for displaying a production status, such as a display method, a production management system, an operation status acquisition device, a production management device, a production management method, a manufacturing line, production equipment, a method for controlling a production management device, a method for controlling a production management system, a method for controlling an operation status acquisition device, a method for controlling a production management device, a computer program for realizing these control methods, a non-transitory recording medium on which the computer program is recorded, etc. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a schematic configuration diagram showing a production management system including a display control device according to a first embodiment. [Figure 2] FIG. 2 is a block diagram showing the internal functional configuration of the production management device. [Figure 3] FIG. 2 is a block diagram showing the functional configuration of the operating state detection device according to the first embodiment. [Figure 4] FIG. 4 is an explanatory diagram showing an example of the arrangement of a first operating state detection device including an optical sensor as a detection unit. [Figure 5] FIG. 10 is an explanatory diagram illustrating a case where the operating state detection device is attached to production equipment and used. [Figure 6]4 is a flowchart showing a processing routine executed by the first operating status detection device. [Figure 7] 4 is a flowchart showing a processing routine executed by the production management device. [Figure 8] 4 is a first time chart showing the relationship between a detection signal from a first operational status detection device and a processing routine by an equipment operation information generation unit. [Figure 9] 10 is a second time chart showing the relationship between the detection signal from the first operation status detection device and the processing routine by the equipment operation information generation unit. [Figure 10] FIG. 4 is a flowchart showing a processing routine for generating a production index. [Figure 11] FIG. 3 is an explanatory diagram showing an example of a display screen of a display unit. [Figure 12] FIG. 10 is an explanatory diagram showing an example in which a lost amount is displayed as an example of a production index. [Figure 13] FIG. 10 is an explanatory diagram showing an example in which a cycle time achievement rate is displayed as an example of a production index. DETAILED DESCRIPTION OF THE INVENTION

[0008] A. First embodiment: FIG. 1 is a schematic configuration diagram showing a production management system 100 including a display control device according to a first embodiment of the present disclosure. The production management system 100 includes a production management device 10 and an operating status detection device 20. In the example of FIG. 1, an operating status detection device 20 is provided for each of a plurality of production facilities 30 provided on production lines L1 to Ln. The production facilities 31 to 36 shown in FIG. 1 are examples of the production facilities 30, and the operating status detection devices 20a to 20f shown in FIG. 1 are examples of the operating status detection device 20.

[0009] The production management device 10 cooperates with the operation status detection device 20 to manage the production status of the multiple production equipment 30 provided on the production lines L1 to Ln. Specifically, the production management device 10 acquires equipment operation information of the production equipment 30 on the production lines L1 to Ln using detection signals from the operation status detection device 20, and generates a production index using the equipment operation information. The equipment operation information and the production index are examples of information indicating the production status of the production equipment. Note that the number of production lines is not limited to multiple and may be single.

[0010] In this embodiment, the production management device 10 functions as a display control device for displaying the generated production indexes and equipment operation information on the display unit 14 of the production management device 10. In this embodiment, the production management device 10 also functions as a display control device for transmitting display data using the generated production indexes and equipment operation information to an information processing device PC such as a personal computer, and terminal devices PD1 and PD2, as shown in Fig. 1, and displaying the data on the display units provided therein. The terminal devices PD1 and PD2 include smartphones, mobile phones, PHS, slate terminals, tablet terminals, and the like.

[0011] Equipment operation information refers to information related to the operating status of production equipment. The operating status of production equipment includes the start and stop of processing of workpieces in the production equipment. The operating status of production equipment may further include operations and manipulations related to processing, and the start, running, stop, and completion status of the operations and manipulations. Equipment operation information includes, for example, the start time, end time, cycle time, stop time, and production quantity of the production equipment. Equipment operation information can be used to calculate production indicators.

[0012] Cycle time refers to the period from when production equipment starts processing the workpiece to when it finishes. Downtime refers to the period during operation when production equipment is not contributing to the processing of the workpiece. Downtime is included in operation time and is not included in cycle time. Included in The number of products produced means the total number of products that have been processed by the production facility since it began operation.

[0013] Production indicators refer to indicators that show the utilization efficiency of production equipment, time, raw materials, costs, etc. Production indicators can be used to understand targets for and effects of improvements to the production status of production equipment. Production indicators include, for example, the operating time of production equipment, non-operating time, sales, output per unit time, sales per unit time, first loss amount, second loss amount, cycle time achievement rate, cycle time availability rate, and output rate. Production indicators may further include availability rate. Availability rate refers to the ratio of actual production volume to planned production volume.

[0014] The manufacturing lines L1 to Ln are equipped with a plurality of production facilities 30 and a plurality of conveying mechanisms 41. The conveying mechanisms 41 convey objects to be processed, such as processed parts and workpieces. The conveying mechanisms 41 include, for example, a belt conveyor, a conveying machine that moves on a predetermined track, and the like.

[0015] The production equipment 30 is, for example, a metal processing machine, a welding machine, a resin molding machine, a coating machine, a hot forging machine, a finished product recovery machine, a processed parts supply machine, etc. The production equipment 30 is equipped with a programmable logic controller (PLC) for executing production processing and processing on the workpieces, and various sensors connected to the PLC. The various sensors are arranged in advance when the production lines L1 to Ln and the production equipment 30 are installed and positioned in order to operate the production lines L1 to Ln and the production equipment 30.

[0016] 1, the first production line L1 is provided with a first production facility 31, a second production facility 32, and a third production facility 33, which are examples of production facilities 30. The second production line L2 is provided with a fourth production facility 34, a fifth production facility 35, and a sixth production facility 36, which are examples of production facilities 30.

[0017] As will be described later, the operating status detection device 20 detects the start and stop of processing of the workpiece by the production equipment 30. In this embodiment, the operating status detection device 20 transmits detection signals to the production management device 10, including a first signal corresponding to the detected start timing of processing by the production equipment 30 and a second signal corresponding to the detected stop timing of processing of the workpiece by the production equipment 30. In this embodiment, the cycle time is acquired as the period from the first signal to the reception of the next first signal. Note that the cycle time may also be acquired as the period from the second signal to the reception of the next second signal.

[0018] In this embodiment, the operating status detection devices 20a to 20f, which are examples of the operating status detection device 20, are retrofitted to the production equipment 31 to 36. The operating status detection devices 20a to 20f may be arranged near the production equipment 31 to 36. In this disclosure, retrofitting means that the operating status detection devices are not attached to or incorporated into the production equipment when the production equipment is installed and arranged, are not connected to the PLC that controls the operation of the production equipment, and are attached to and arranged in the production equipment independently of the operation and control of the production equipment. In the example of FIG. 1, the first operating status detection device 20a is attached to the first production equipment 31, the second operating status detection device 20b is attached to the second production equipment 32, and the fourth operating status detection device 20d is attached to the fourth production equipment 34. The fifth operating status detection device 20e is attached to the discharge side of the fifth production equipment 35, and the third operating status detection device 20c and the sixth operating status detection device 20f are arranged near the downstream sides of the third production equipment 33 and the sixth production equipment 36 in the conveying direction, respectively.

[0019] 1, the production management device 10 and the operation status detection device 20 can transmit and receive data to each other via wireless communication. For example, in response to requests from the information processing device PC and terminal devices PD1 and PD2, the production management device 10 transmits the generated equipment operation information and production indexes to the information processing device PC and terminal devices PD1 and PD2 via wireless communication.

[0020] The production management device 10 may be located within the factory as a local server, or may be located outside the factory as a remote server. When the production management device 10 is installed as a remote server, the detection signal from the operation status detection device 20 and the equipment operation information and production indexes to the terminal devices PD1 and PD2 and the information processing device PC are transmitted and received by the production management device 10 via wireless access points within the factory and a network such as an intranet or the Internet.

[0021] 2 is a block diagram showing the internal functional configuration of the production management device 10. The production management device 10 comprises a CPU 11 as a central processing unit, a storage device 12, a transmission / reception unit 13, a display unit 14, an input device 15, and a timer 16 for measuring time, which are interconnected via a bus 17 so as to be able to communicate with each other. The CPU 11, storage device 12, and transmission / reception unit 13 are capable of bidirectional communication with each other. The production management device 10 is a device different from the PLC that controls the operation of the production equipment 30, and the operation of the production equipment 30 is controlled by the PLC even when the production management device 10 is not used.

[0022] The CPU 11 executes various programs stored in the storage device 12 to function as an equipment operation information generating unit 110 that generates equipment operation information, and a production index generating unit 111 that generates production indexes using the equipment operation information and generates display data such as screens and graphs related to the generated production indexes. The storage device 12 is, for example, a RAM, a ROM, or a hard disk drive (HDD). The HDD or ROM stores various programs for realizing the functions provided in this embodiment. The various programs read from the HDD or ROM are expanded on the RAM and executed by the CPU 11. The readable / writable area of ​​the storage device 12 includes an equipment operation information storage unit 120 and a production index storage unit 121. The storage device 12 temporarily stores the first signal and the second signal received from the operation status detection device 20.

[0023] The transmitter-receiver unit 13 functions as an acquisition unit that acquires the start timing of processing by the production equipment and the stop timing of processing by the production equipment from the operation status detection device 20 via wireless communication. In this embodiment, the transmitter-receiver unit 13 acquires the start timing of processing by the production equipment and the stop timing of processing by the production equipment by receiving a first signal and a second signal transmitted from the operation status detection device 20. The transmitter-receiver unit 13 also transmits various execution commands to the operation status detection device 20. The transmitter-receiver unit 13 further transmits display data to the terminal devices PD1 and PD2 and the information processing device PC. The transmitter-receiver unit 13 may transmit equipment operation information and production indices instead of or together with the display data. The transmitter-receiver unit 13 may also receive command signals requesting the execution of various processes from the terminal devices PD1 and PD2 and the information processing device PC.

[0024] The transmitter-receiver unit 13 can acquire the first signal and the second signal from the operating status detection device 20 without being connected to the operating status detection device 20 by wire. This configuration allows the production management device 10 of this embodiment to be introduced into an existing factory by simply retrofitting or disposing the operating status detection device 20 on the production equipment 30. For example, if the transmitter-receiver unit 13 is an input / output interface (I / F) with wireless communication capabilities, the transmitter-receiver unit 13 may receive wireless radio waves from the operating status detection device 20 via a wireless repeater (access point) (not shown) installed in the factory. Alternatively, the transmitter-receiver unit 13 itself may be located in a location where it can receive wireless radio waves from the operating status detection device 20 as a wireless access point. The transmitter-receiver unit 13 may also be connected to the wireless repeater by wire. Wireless communication can be achieved, for example, by a wireless connection via a wireless local network (LAN) conforming to the IEEE 802.11 standard or wireless communication using Bluetooth (registered trademark).

[0025] The display unit 14 is a display for displaying display data. The display unit 14 may further display the processing contents when operating the production management system 100. The input device 15 is a device used to input data to the production management system 100. The input device 15 is, for example, a keyboard, a mouse, a touch panel, etc.

[0026] FIG. 3 is a block diagram showing the functional configuration of the operational status detection device 20 in the first embodiment. In FIG. 3, the first operational status detection device 20a is used as an example for explanation, but the second operational status detection device 20b to the sixth operational status detection device 20f have the same configuration. The operational status detection device 20 is attached or disposed on the production lines L1 to Ln or the production facility 30 as an add-on. The first operational status detection device 20a includes a detection unit 25a, a first transmission / reception unit 21a, a second transmission / reception unit 22a, and a controller 23a. The detection unit 25a, the first transmission / reception unit 21a, and the second transmission / reception unit 22a are communicably connected to the controller 23a.

[0027] The detection unit 25a is a variety of sensors attached to the first production facility 31. The detection unit 25a is a sensor different from existing sensors connected to a programmable logic controller (PLC). The detection unit 25a may be provided integrally with the first operational status detection device 20a, or may be separate from the first operational status detection device 20a. If the detection unit 25a is separate from the first operational status detection device 20a, it is connected to the first operational status detection device 20a via a signal line. The detection unit 25a may be a detection unit that includes only detection elements and outputs an analog signal, or may be a detection unit that includes, in addition to detection elements, a circuit that converts a signal output from the detection elements into a digital signal and outputs the digital signal.

[0028] The sensors used as the detection unit 25a include an optical sensor, a sound sensor, a heat sensor, a current sensor, a distance sensor, an air pressure sensor, an acceleration sensor, a rotational speed sensor, a humidity sensor, a magnetic sensor, and a pressure sensor, etc. Each of these sensors is a sensor for detecting the operating state of the production equipment.

[0029] The detection unit 25a detects the start of processing of the workpiece by the first production facility 31 and the stop of processing of the workpiece by the first production facility 31, and generates a pulse signal. For example, the detection unit 25a generates a pulse signal that rises (ON) from a reference state when it detects the start of processing by the first production facility 31, and falls (OFF) from the ON state when it detects the stop of processing by the first production facility 31. The generated pulse signal is output to the controller 23a. The detection unit 25a may generate a pulse signal that falls (OFF) from the ON state to the reference state when it detects the start of processing by the first production facility 31, and rises (ON) from the reference state when it detects the stop of processing by the first production facility 31.

[0030] The controller 23a includes a central processing unit (CPU) and a storage device (not shown). The controller 23a generates a first signal and a second signal using the pulse signal received from the detector 25a and outputs them to the first transmitter / receiver 21a and the second transmitter / receiver 22a, respectively. In this embodiment, the controller 23a detects the rising edge (ON) of the pulse signal received from the detector 25a to generate a first signal and output it to the first transmitter / receiver 21a. When the controller 23a detects the falling edge (OFF) of the pulse signal received from the detector 25a, the controller 23a generates a second signal and output it to the second transmitter / receiver 22a. In addition, if the detector 25a generates a pulse signal that falls (OFF) from the ON state to the reference state when it detects the start of processing by the first production facility 31 and rises (ON) from the reference state when it detects the stop of processing by the first production facility 31, the controller 23a may generate a first signal and output it to the first transmitter / receiver 21a when it detects the falling edge of the pulse signal and output a second signal to the second transmitter / receiver 22a when it detects the rising edge of the pulse signal. Alternatively, instead of the controller 23a, the detector 25a may generate the first signal and the second signal and output them to the controller 23a. When the signal input from the detector 25a is an analog signal, the controller 23a converts the signal into a digital signal that is High (1) in active-high logic or Low (1) in active-low logic when the signal value is equal to or greater than a predetermined value, less than a specified value, or within an arbitrary range, and transmits the first signal and the second signal to the production management device 10.

[0031] The first transceiver 21a and the second transceiver 22a function as transmitters that transmit a first signal and a second signal to the production management device 10 via wireless communication in accordance with an arbitrary communication protocol. More specifically, the first transceiver 21a functions as a first transmitter that transmits a first signal to the production management device 10, and the second transceiver 22a functions as a second transmitter that transmits a second signal to the production management device 10. The first transceiver 21a and the second transceiver 22a may generate the first signal and the second signal in accordance with a command from the controller 23a that receives a pulse signal from the detector 25a. The first transceiver 21a and the second transceiver 22a may receive an execution command from the production management device 10.

[0032] 4 is an explanatory diagram showing an example of the arrangement of a first operational status detection device 20a equipped with an optical sensor as the detection unit 25a. The first operational status detection device 20a is provided in a first production facility 31. A housing 310 that houses a PLC is disposed adjacent to the first production facility 31. The housing 310 is provided with a signal tower 40 that indicates the operational status of the first production facility 31 with three-colored signal lights. The signal lights are an example of a display unit that indicates the operational status of the first production facility 31. The operational status indicated by the signal tower 40 is, for example, green for processing, yellow for processing stopped, and red for abnormal stop.

[0033] The optical sensor serving as the detector 25a may be a photoelectric conversion element, such as a photodiode or phototransistor, capable of detecting whether a signal light is on or off. The detector 25a is attached, for example, to the light-emitting surface of a green signal light on the signal tower 40. By attaching the detector 25a to the signal tower 40, it is possible to easily detect the start or stop of processing of workpieces by the first production facility 31, as indicated by the signal tower 40. The detector 25a detects the start of processing by the first production facility 31 when the green signal light is on, and detects the stop of processing by the first production facility 31 when the green signal light is off. When the start of processing by the first production facility 31 is detected, the controller 23a generates a first signal using the pulse waveform from the detector 25a and outputs the first signal to the first transceiver 21a. When the stop of processing by the first production facility 31 is detected, the controller 23a generates a second signal using the pulse waveform from the detector 25a and outputs the second signal to the second transceiver 22a. The detector 25a may generate a first signal and a second signal and output them to the controller 23a. The detector 25a may output a current corresponding to the amount of received light to the controller 23a. In this case, when the amount of received light is equal to or greater than a predetermined amount, the controller 23a generates a pulse waveform as the first signal, and when the amount of received light is less than the predetermined amount, the controller 23a generates a pulse waveform as the second signal.

[0034] 5 is an explanatory diagram of a case where the operating status detection device is attached to production equipment for use. A second operating status detection device 20b is attached to second production equipment 32. The first transceiver 21b, the second transceiver 22b, and the controller 23b are attached near an opening / closing door 321 provided on second production equipment 32. The opening / closing door 321 is closed when second production equipment 32 starts processing the workpieces, and is opened when second production equipment 32 stops processing the workpieces and when processing is completed.

[0035] The second operating status detection device 20b includes a magnetic sensor serving as a detection unit 25b. The detection unit 25b detects the movement of the door 321 as information indicating the operating status of the second production equipment 32. In this embodiment, the detection unit 25b detects the opening and closing of the door 321 using a change in magnetic force caused by a change in distance to a magnet 322 attached to the second production equipment 32, and can detect the start and stop timings of processing the workpieces from the opening and closing of the door 321.

[0036] When the controller 23b detects that processing by the second production equipment 32 has started, it generates a first signal using the pulse waveform from the detection unit 25b and outputs it to the first transceiver unit 21b, and when it detects that processing by the second production equipment 32 has stopped, it generates a second signal using the pulse waveform from the detection unit 25b and outputs it to the second transceiver unit 22b.

[0037] 6 is a flowchart showing a processing routine executed by the first operational status detection device 20a. This flow can be repeatedly executed from the time when the first operational status detection device 20a is started until the operation of the first operational status detection device 20a is terminated. Note that similar processing can also be executed in the second operational status detection device 20b and other operational status detection devices 20.

[0038] In step S200, the first operating status detection device 20a checks whether a pulse signal has been input from the detection unit 25a. If a pulse signal has not been input from the detection unit 25a (S200: NO), the controller 23a waits for the input of a pulse signal.

[0039] When a pulse signal is input from the detection unit 25a (step S200: Yes), the controller 23a detects a rising edge (ON) or a falling edge (OFF) of the detected pulse signal (step S210). In this embodiment, when the controller 23a detects a rising edge (ON) of the pulse signal (S210: YES), the controller 23a generates a first signal corresponding to the start timing of processing the workpiece by the first production facility 31 and outputs it to the first transmission / reception unit 21a, and the first transmission / reception unit 21a transmits the acquired first signal to the production management device 10 (step S211). When the controller 23a detects a falling edge (OFF) of the pulse signal (S210: NO), the controller 23a outputs a second signal corresponding to the stop timing of processing the workpiece by the first production facility 31 to the second transmission / reception unit 22a, and the second transmission / reception unit 22a transmits the acquired second signal to the production management device 10 (step S212).

[0040] FIG. 7 is a flowchart showing a processing routine executed by the production management device 10. This flow can be repeatedly executed from the time the production management device 10 is started until the operation of the production management device 10 is terminated. When this flow starts, the production management device 10 starts measuring time using the timer 16 and waits for reception of a detection signal. In the following explanation, the first operation status detection device 20a installed in the first production equipment 31 on the first production line L1 will be used as an example, but the same applies to the other operation status detection devices 20b to 20f. Note that this flow may also be started when the production management device 10 receives a first signal.

[0041] In step S300, the first signal and the second signal transmitted from the first operational status detection device 20a are received by the transmitter-receiver unit 13 via wireless communication. In step S310, the equipment operation information generation unit 110 generates equipment operation information using the reception timing of the first signal and the second signal. Specifically, the equipment operation information generation unit 110 generates the operation start time, operation end time, cycle time, stop time, and production quantity of the production equipment as the equipment operation information.

[0042] For example, the equipment operation information generating unit 110 acquires the timing when the first signal is first received on the day the production management device 10 is started as the operation start time of the production equipment 30, and acquires the timing when the second signal is last received as the operation end time. The equipment operation information generating unit 110 acquires the period from the detection of the first signal to the detection of the next first signal as the cycle time. The equipment operation information generating unit 110 acquires the production volume by counting the number of times the cycle time is acquired. The equipment operation information generating unit 110 outputs the acquired equipment operation information to the production index generating unit 111.

[0043] The equipment operation information generating unit 110 calculates a stop time when the acquired cycle time exceeds a predetermined threshold. Specifically, when the acquired cycle time exceeds the threshold, the equipment operation information generating unit 110 acquires the cycle time and further acquires the period from the time when the second signal is received within the cycle time to the time when the next first signal is received as the stop time. The threshold can be set using any value, for example, the upper limit of the process control value of the cycle time. By setting a threshold, the stop time can be acquired while allowing for cycle time variations that occur in the production equipment 30. The threshold is preferably set, for example, using a time longer than the target cycle time value preset for each production equipment 30. In this embodiment, the threshold is set using a value obtained by multiplying the target cycle time required for each production equipment 30 by a coefficient that allows for cycle time variations. This allows for a simple threshold setting. For example, if the target cycle time required for the first production equipment 31 is 10 seconds, the threshold is set to 15 seconds, which is obtained by multiplying the target value by a predetermined coefficient of 1.5.

[0044] FIG. 8 is a first time chart showing the relationship between the detection signal from the first operational status detection device 20a and the processing routine by the equipment operation information generation unit 110. The horizontal axis in FIG. 8 is the time axis, and the vertical axis schematically shows the timing of generation of the ON signal and OFF signal by the detection unit 25a. FIG. 8 also schematically shows the cycle time CT1, the target value TG for the cycle time, and the threshold value TS for determining the stop time. The cycle time CT1 is shorter than the threshold value TS.

[0045] The time chart indicated by the solid line G1 is an example in which the first production equipment 31 normally completes processing without any downtime. In the example of FIG. 8 , at time T1, the detection unit 25a detects the start of processing by the first production equipment 31, and the controller 23a generates a first signal as an ON signal that rises from a reference state. At time T2, the detection unit 25a detects the stop of processing by the first production equipment 31, and generates a second signal as an OFF signal that falls from the ON state. At time T3, the first production equipment 31 starts processing the next workpiece, and the detection unit 25a generates the first signal. The equipment operation information generation unit 110 acquires the period from receiving the first signal at time T1 to receiving the next first signal at time T3 as the cycle time CT1 and integrates the production quantity.

[0046] FIG. 9 is a second time chart showing the relationship between the detection signal from the first operational status detection device 20a and the processing routine by the equipment operation information generation unit 110. The horizontal axis in FIG. 9 is the time axis, and the vertical axis schematically shows the timing of generation of the ON signal and OFF signal by the detection unit 25a. FIG. 9 also schematically shows the cycle time CT2, the target value TG for the cycle time, the threshold value TS, and the stop time ST. The cycle time CT2 is longer than the threshold value TS.

[0047] The time chart indicated by the solid line G2 is an example of a time chart in the case where a stoppage occurs in the first production equipment 31. In the example of Fig. 9, the first production equipment 31 stops after completing processing at time T2, and processing of the next workpiece begins at time T6, which is later than time T5.

[0048] The equipment operation information generating unit 110 acquires the period from time T1 to time T6 as the cycle time CT2, and further calculates the stoppage time when the cycle time CT2 exceeds the threshold value TS. Within the generated cycle time CT2, the equipment operation information generating unit 110 acquires the period from time T2 when the last second signal is received to time T6 when the next first signal is received as the stoppage time ST. Note that the method for calculating the stoppage time is not limited to this. For example, the stoppage time may be calculated as the period from time T4 when the cycle time target value TG has elapsed to time T6, or the period from time T5 when the threshold value TS has elapsed to time T6. Note that the equipment operation information generating unit 110 may further acquire the period from time T1 when the first first signal is received to time T2 when the second signal is received as the machine cycle time, which indicates the time it takes for the production equipment to process the workpiece.

[0049] In step S320 of Fig. 7, the production index generation unit 111 generates a production index. Fig. 10 is a flow diagram showing a processing routine for generating a production index. In this embodiment, the production index generation unit 111 generates the operating time, non-operating time, production amount, first loss amount, second loss amount, cycle time achievement rate, cycle time availability rate, and output rate of the production equipment as the production index. Note that the order of steps S321 to S328 shown in Fig. 8 is not limited to the order shown in Fig. 8 and may be executed in any order, and multiple steps may be executed in parallel.

[0050] In step S321, the production index generation unit 111 calculates the operating time. Operating time refers to the time from the start of operation of the production equipment to the completion of operation. For example, the production index generation unit 111 acquires the period from the operation start time when the first signal is first received to the operation end time when the second signal is last received as the operating time of the production equipment 30. The operating time at the time of confirmation on the day of operation may be acquired as the period from the operation start time of the production equipment 30 to the time of confirmation on the display unit 14. Operating time is the time during which the production equipment processes the items to be processed. Operating time is the period during which production costs are incurred, and can be considered, for example, the time during which labor costs are incurred for personnel involved in manufacturing by the production equipment 30. Production equipment with long operating times may be subject to improvement. Production equipment with short operating times may be subject to so-called advance production or integration with other production equipment with short operating times.

[0051] In step S322, the production index generation unit 111 calculates the non-operating time. The non-operating time is, for example, the period obtained by subtracting the operating time from the operating time. The operating time may be set arbitrarily, for example, one day (24 hours), eight hours, 16 hours, or the like. The non-operating time can be said to be the period during which the production equipment is in a state where it can process the items to be processed, but the items to be processed are not actually being processed. The non-operating time is included in the period during which manufacturing costs are incurred. Production equipment with long non-operating times may be a target for improvement.

[0052] In step S323, the production index generation unit 111 calculates the production amount. The production amount corresponds to the sales amount when all manufactured products are sold. The production amount can be calculated, for example, by the following formula (1). Production value = production quantity × unit price of processed goods Formula (1)

[0053] Instead of or together with the production amount, the production amount per unit time may be used. The production amount per unit time means the production amount per unit time, such as one hour. The production amount per unit time can be calculated using the following formula (2). Production value per unit time = (production quantity x unit price of processed products) / operating time Equation (2) The smaller the production value and production value per unit time, the more likely it is to be improved. One way to improve production value is to increase the unit price of the processed product. Other ways to improve production value per unit time include increasing the unit price and shortening operating hours.

[0054] In step S324, the production index generation unit 111 calculates a first lost amount. The first lost amount means the amount lost due to downtime of the production equipment. The lost amount includes expenses, sales, profits, etc. The first lost amount can be considered as an index that expresses the effect of improvement on downtime in monetary terms. The first lost amount can be calculated, for example, by the following formula (3). First loss amount = (stop time / CT0) × unit price of processed product Equation (3) CT0: Target value of cycle time required for each production facility Instead of the target cycle time value CT0, an actual measured value of the cycle time or its average value may be used. The first lost value corresponds to the sales revenue based on the number of processed products that could have been processed if the production equipment had not stopped. The larger the first lost value of a production equipment, the more cost-effective the improvement will be, and the higher the priority of the improvement.

[0055] The first loss amount may be calculated by the following formula (4) instead of or in addition to the above formula (3). First loss amount = (non-operating time / CT0) × unit price of processed product Equation (4) According to formula (4), it is possible to predict the monetary effect of eliminating downtime of production equipment. In addition, by adding this to formula (3) above and making the first lost amount the sum of the downtime and downtime, it is possible to clarify the amount of money lost due to the production equipment not contributing to production.

[0056] The first loss amount may be calculated using the following formulas (5) and (6) instead of the above formulas (3) and (4). First loss amount = Downtime × Employee's hourly labor cost Equation (5) First lost wage amount = Unavailable time × Employee's hourly labor cost Equation (6) According to equations (5) and (6), it is possible to clarify the labor costs that can be effectively utilized by operating production facilities.

[0057] In step S325, the production index generation unit 111 calculates a second lost amount. The second lost amount means the amount lost due to the cycle time being delayed relative to the target value. The lost amount includes expenses, production amount, profit, etc. The second lost amount can be considered as an index that expresses the effect of improving the cycle time in monetary terms. The second lost amount can be calculated, for example, by the following formula (7). Second loss amount = Unit price of processed product × {production quantity × (CT1-CT0)} / CT0 Formula (7) CT1: Actual measured value of cycle time (however, CT0≦CT1) The second loss amount can be thought of as an indicator that expresses the effect of improving cycle time in monetary terms. The larger the second loss amount for a production facility, the more cost-effective the improvement is, and the higher the priority for improvement.

[0058] In step S326, the production index generation unit 111 calculates the cycle time achievement rate (%). The cycle time achievement rate means the ratio of the actual measured cycle time value to the target cycle time value CT0. The cycle time achievement rate can be calculated, for example, using the following formula (8). Cycle time achievement rate = (CT0 / CT2) × 100 Equation (8) CT2: Actual measured value of cycle time The lower the cycle time achievement rate, the higher the priority of improvement for the production equipment. A rate exceeding 100% indicates that the actual measured cycle time is faster than the target value. If the actual measured cycle time is faster than the target value, the target cycle time may be the target for improvement. Also, if the actual measured cycle time is faster than the target value, it may be that the actual processing content is insufficient compared to the planned processing content, for example, there are fewer locations to be inspected than planned. Therefore, if the actual measured cycle time is faster than the target value, it is preferable to reconfirm the actual processing content.

[0059] The cycle time achievement rate may be calculated using the following equation (9). Cycle time achievement rate = {(CT0 - CT2) / CT0} × 100 Equation (9) According to the above formula (9), if the actual measured value is faster than the target cycle time, the value will be positive, and if the actual measured value is slower than the target value, the value will be negative. Therefore, it is easy to visually determine whether the cycle time is being achieved.

[0060] In step S327, the production index generation unit 111 calculates the cycle time availability rate (%). The cycle time availability rate means the proportion of time during which the production equipment is normally executing processing relative to a predetermined set time. The set time can be set using a predetermined unit time such as one hour, operation time, or running time. The cycle time availability rate can be calculated, for example, using the following formula (10). Cycle time availability rate = (CT3 / setting time) × 100 Equation (10) CT3: Sum of the actual cycle time values ​​within the set time The lower the cycle time availability rate of a manufacturing facility, the higher the priority for improvement.

[0061] The cycle time availability rate may be calculated using the following formula (11). Cycle time availability rate = {(set time - total stop time within the set time) / set time} × 100 Equation (11) Instead of using the above formula (11), calculation may be performed using the ratio of the stop time to the actual measured value of the cycle time.

[0062] In step S328, the production index generation unit 111 calculates the output rate (%). The output rate means the ratio of the output rate when manufactured according to the actual measured value to the output rate when manufactured according to the cycle time target value. The output rate can be calculated, for example, using the following formula (12). Output rate = {production quantity / (operating time / CT0)} × 100 Equation (12) The output rate will be low if the cycle time is slower than the target value or if the downtime is long. Production equipment with a low output rate is a target for improvement. After finishing calculating the output rate, the production index generation unit 111 ends the generation of the production index.

[0063] 7, in step S330, the production index generation unit 111 uses the acquired production indexes to generate numerical values ​​and graphs that statistically indicate the production indexes, and generates the results as display data to be displayed on the display unit 14. The generated display data is output to the display unit 14, terminal devices PD1 and PD2, and information processing device PC. In step S340, the display unit 14, terminal devices PD1 and PD2, and information processing device PC display a screen based on the generated display data, and this flow ends.

[0064] Fig. 11 is an explanatory diagram showing an example of the display screen of the display unit 14. As shown in Fig. 11, the display unit 14 displays a plurality of item display areas 140, a plurality of index display areas 141, classification display areas 142 and 143, a scroll bar 144, and a display area selection section 146.

[0065] As shown in FIG. 11, the classification display areas 142, 143 are display areas having any shape, and in the example of FIG. 11, the classification display areas 142, 143 have a shape that is elongated in one direction. In the classification display areas 142, 143, a plurality of index display areas 141 are displayed side by side. In each of the plurality of index display areas 141, a plurality of types of generated production indexes are individually displayed. An item display area 140 is provided adjacent to each of the index display areas 141. In the item display area 140, the name of the production index corresponding to the production index displayed in the adjacent index display area 141 is displayed. If the entire classification display areas 142, 143 cannot be displayed on the display unit 14 at one time, a scroll bar 144 can be used to display any position in the classification display areas 142, 143.

[0066] The display area selection unit 146 is a graphical user interface (tab) provided at the top of the screen. When a user operates the display area selection unit 146, the display data of either the classified display area 142 or the classified display area 143 corresponding to the operation is displayed on the display unit 14.

[0067] In this embodiment, the classification display area 142 displays production indices related to monetary amounts among the multiple generated production indices. Furthermore, the classification display area 143 displays production indices related to the operation status of equipment. In this embodiment, monetary production indices are classified into a first lost amount, a second lost amount, a production amount per unit time, and a production amount. Production indices related to the operation status of equipment are classified into the operation time, non-operation time, output per unit time, cycle time achievement rate, cycle time availability rate, and output rate of the production equipment. Even a production index related to the operation status of equipment may be converted into a monetary production index by multiplying it by, for example, the unit price of the processed product or labor costs. In the example of FIG. 11 , the classification display area 142 is labeled "Management Dashboard," and the classification display area 143 is labeled "Equipment Dashboard." This allows the display content of each classification display area to be easily recalled.

[0068] In this embodiment, a priority is set for each type of production index in each of the classification display area 142 and the classification display area 143. The priority may be set arbitrarily; for example, the higher the production index in need of improvement, the higher the priority. The production index generation unit 111 arranges the production indexes in the classification display area 142 and the classification display area 143 from the top to the bottom in order of the priority of improvement. In the example of FIG. 11 , in the classification display area 142, the sum of the first loss amount and the second loss amount (hereinafter simply referred to as the "loss amount") is set as the production index with the highest priority, and the production amount is set as the production index with the next highest priority. The priority displayed in the classification display area 142 may be updated sequentially based on, for example, the results of the acquired production indexes. For example, a production index with a high amount of improvement can be set as a production index with a high priority. To calculate the priority, each production index may be weighted.

[0069] As shown in FIG. 11, the index display area 141 is further divided into a plurality of predetermined areas AR1 to AR6. Each of the areas AR1 to AR6 displays a numerical value or a graph statistically indicating the production index. Area AR1 displays the cumulative total of the production index per unit period as a numerical value or a graph. In this embodiment, the cumulative total for a specified day is displayed. However, the unit period is not limited to one day and may be set arbitrarily. For example, any date and time may be specified, and it may be hourly, monthly, or annual, or it may be the cumulative total from the start of operation on that day to the time the production index is viewed. Area AR2 displays the highest ever value of the production index as a numerical value or a graph.

[0070] Area AR3 displays a graph with the date on the horizontal axis and the production index results on the vertical axis, showing the daily changes in the production index per month. Area AR4 displays a graph with the production index results on the horizontal axis and the number of production facilities on the vertical axis, showing the distribution of the number of production facilities against the production index results. Area AR5 displays the production index results on the horizontal axis and displays information about facilities with low improvement priority on the vertical axis using a graph or facility names. Area AR6 displays the production index results on the horizontal axis and displays information about facilities with high improvement priority on the vertical axis using a graph or facility names. The positions of areas AR1 to AR6 are not limited to the above example and may be set arbitrarily.

[0071] FIG. 12 is an explanatory diagram showing an example of a display of lost production amounts as an example of a production index. As shown in FIG. 12, area AR1 displays the cumulative lost production amounts for a given day as a numerical value. By displaying the cumulative total, it becomes easy to recognize the overall status of all production equipment in production lines L1 to Ln, such as the maximum improvement effect. Area AR2 displays the highest ever lost production amount and the date on which that highest value was recorded. Area AR3 displays a graph showing the daily trend of lost production amounts. Specifically, it displays a bar graph PG1 showing the first lost production amount, a bar graph PG2 showing the second lost production amount, and a line graph PG3 showing the cumulative lost production amount, which is the sum of the first lost production amount and the second lost production amount. Bar graph PG2 is stacked on top of bar graph PG1 in a different color, making it easy to see the breakdown of lost production amounts.

[0072] Area AR4 shows a graph that displays the distribution of the number of production equipment against the loss amount. This makes it easy to visually identify the number of production equipment that needs improvement. Area AR5 displays the production equipment with the smallest loss amount out of all the production equipment, in descending order of loss amount. In other words, area AR5 shows the top production equipment that shows good results in terms of production indexes. This makes it easy to identify the production equipment that could be targets for improvement. Area AR6 displays the production equipment with the largest loss amount out of all the production equipment, in descending order of loss amount. In other words, area AR6 shows the production equipment that has a high priority for improvement in terms of production indexes. This makes it easy to identify the production equipment that should be prioritized for improvement.

[0073] FIG. 13 is an explanatory diagram showing an example of displaying cycle time achievement as an example of a production index. In area AR1, the cumulative average of cycle time achievement for a specific day is displayed using a pie chart. Specifically, the ratio of the target value of the cycle time for that day to the cumulative total of the actual measured values ​​of the cycle time for that day is displayed using numerical values ​​and a graph. The average value of the cycle time achievement for that day may also be displayed.

[0074] Area AR3 displays a graph showing the daily trend and cumulative average of cycle time achievement. Specifically, the daily cumulative cycle time achievement is shown by bar graph PG4, and the daily cumulative average is shown by line graph PG5. In this way, the cumulative value is not limited to an integrated value, and may be shown as a cumulative average. Area AR4 displays a graph showing the distribution of the number of production equipment units against cycle time achievement. Area AR5 displays the production equipment with the highest cycle time achievement among all production equipment units in descending order of cycle time achievement. Area AR5 displays the top production equipment units that show good results in terms of cycle time achievement. Area AR6 displays the production equipment with the lowest cycle time achievement among all production equipment units in descending order of cycle time achievement, making it easy to identify the production equipment units that should be prioritized for improvement in terms of cycle time achievement.

[0075] As described above, the production management device 10 of this embodiment includes the transmitter / receiver unit 13 as an acquisition unit that acquires the start timing of processing by the production equipment 30, the equipment operation information generation unit 110 that uses the acquired start timing to generate equipment operation information including the equipment cycle time and equipment downtime, and the production index generation unit 111 that uses the equipment operation information to generate multiple production indices including a first loss amount caused by the occurrence of downtime and generates display data including the generated multiple production indices. Therefore, using the production index as a method for displaying the production status of the multiple production equipment 30 improves visibility and makes it easy to grasp the overall production status of the multiple production equipment. Using the first loss amount as the production index allows the effect of improving the downtime of the production equipment 30 to be visually recognized in monetary terms, thereby motivating users to make improvements.

[0076] According to the production management device 10 of this embodiment, the production index generation unit 111 further generates a plurality of production indexes including a second loss amount caused by a delay in the cycle time. By using the second loss amount as the production index, the effect of improving the cycle time can be visually recognized in monetary terms, and this can stimulate the user's motivation for improvement.

[0077] According to the production management device 10 of this embodiment, the production index generation unit 111 generates display data including information on equipment that has a high priority for improvement in the production index. Therefore, it is possible to easily identify the production equipment that needs to be improved among the multiple production equipment 30.

[0078] According to the production management device 10 of this embodiment, the production index generation unit 111 further generates display data including numerical values ​​and graphs that statistically indicate the production indexes, thereby facilitating multifaceted evaluation of the production status of multiple production facilities 30.

[0079] According to the production management device 10 of this embodiment, the production index generation unit 111 generates the cumulative total of the production index per unit period and the daily trend of the production index as numerical values ​​or graphs that statistically indicate the production index. By displaying the cumulative total of the production index per unit period, it becomes easy to grasp the overall production status of multiple production facilities. By displaying the daily trend of the production index, it becomes easy to grasp changes in the production index due to improvements or the occurrence of problems.

[0080] According to the production management device 10 of this embodiment, when a selection operation is received to select whether to display display data including production indices related to monetary amounts or display data including production indices related to the operation status of equipment, the production index generation unit 111 generates display data corresponding to the selection operation. Therefore, by classifying production indices into monetary amounts and equipment operation statuses and aggregating them into different display areas, the classified display area 142 and the classified display area 143, it is possible to improve the visibility of multiple types of production indices. Furthermore, according to the production management device 10 of this embodiment, when a selection operation is received to display either the classified display area 142 or the classified display area 143, the production management device 10 displays either the classified display area 142 or the classified display area 143 corresponding to the selection operation. Therefore, the user can easily view the desired production index.

[0081] According to the production management device 10 of this embodiment, the transmitter / receiver 13 further acquires the stop timing of the process by the production equipment 30, and the equipment operation information generator 110 further generates equipment operation information using the acquired stop timing. Therefore, more accurate stop timing can be acquired, and equipment operation information such as cycle time and stop time can be generated more accurately.

[0082] B. Other Embodiments: (B1) In the above embodiment, the operating status detection devices 20a to 20f are not connected to a PLC, but are attached to the production equipment 31 to 36 as a retrofit. In contrast, the operating status detection devices 20a to 20f may be connected to a PLC without being attached as a retrofit. In this case, for example, the detection unit 25a is connected to the PLC. In the operating status detection devices 20a to 20f, the transmission / reception unit 13 as an acquisition unit receives a command signal output from the PLC to control the operation of the equipment, and acquires the start timing and stop timing of processing by the equipment based on the received command signal from the PLC.

[0083] (B2) In the above embodiment, an example was shown in which only the detection unit 25a functions as the detection unit. However, the detection unit may be realized by the detection unit 25a and the controller 23a. The controller 23a may store the pulse signal received from the detection unit 25a in a storage device, and may execute a process of transmitting the first signal and the second signal to the production management device 10 in response to an execution command received from the production management device 10.

[0084] (B3) In the above embodiment, the production management device 10 and the operation status detection devices 20a, 20b communicate wirelessly, but they may also communicate via wired communication. For example, if a wired local area network (LAN) connection port is provided near the production equipment 31-36, the connection port can be used to eliminate the need for new wiring, and the production management system 100 according to the first embodiment can be easily introduced in the same way as wireless communication.

[0085] (B4) The total amount of the first loss amount and the second loss amount can be calculated not only by the calculation results of the above formulas (3) to (7), but also by the following formula (13). Total amount of first lost profit and second lost amount = {(operating time / CT0) - production quantity} × unit price of processed product ··· Equation (13) According to the above formula (13), the total amount of lost money for a given cycle time can be calculated in a simple manner.

[0086] (B5) In the above embodiment, the production index generation unit 111 displays a plurality of index display areas 141 side by side in the classification display area 142 and the classification display area 143. In contrast to this, the production index generation unit 111 may display a plurality of generated index display areas 141 side by side only in the classification display area 142. Therefore, by aggregating the results of a plurality of types of production indexes in the classification display area 142, it is possible to improve the visibility of a plurality of types of production indexes.

[0087] (B6) Production indicators may further include output volume and output volume per hour. Output volume per unit time means the number of processed items processed per unit time, such as one hour. The higher the output volume or output volume per hour of a production facility, the more cost-effective the improvement will be and the higher the priority of the improvement.

[0088] (B7) In the above embodiment, the operation status detection device 20 transmits a first signal corresponding to the start timing of processing by the production equipment 30 and a second signal corresponding to the stop timing of processing to the production management device 10, and the production management device 10 generates equipment operation information and a production index using the first and second signals. Alternatively, the production management device 10 may acquire only the start timing of processing by the production equipment 30, i.e., only the first signal, and generate equipment operation information and a production index using only the start timing. In this case, in the operation status detection device 20, the detection unit 25a may detect the start timing of processing by the production equipment 30, and the controller 23a may generate only the first signal using the pulse signal received from the detection unit 25a. The operation status detection device 20 may include only either the first transceiver 21a or the second transceiver 22a for transmitting the first signal to the production management device 10. This simplifies the configuration of the operation status detection device 20 and the processing in the production management device 10. The production management device 10 may be configured to acquire only the second signal and generate equipment operation information and production indices using only the stop timing.

[0089] When generating equipment operation information and production indices using only the start timing, the equipment operation information generating unit 110 may acquire the period from the first signal to the reception of the next first signal as the cycle time, and if the acquired cycle time exceeds a threshold, may acquire the time obtained by subtracting the target value of the cycle time from the acquired cycle time, in other words, the period from the time when the target value of the cycle time has elapsed since the first signal was received to the time when the next first signal is received as the stop time. In this case, the equipment operation information generating unit 110 may acquire the time when the target value of the cycle time has elapsed since the last first signal was received as the operation end time of the production equipment 30, or may acquire the time when the last first signal was received as the operation end time of the production equipment 30.

[0090] (B8) In the above embodiment, examples were shown in which the unit price of the processed product or employee labor costs were used in production indicators such as the production amount, first lost value amount, and second lost value amount. However, instead of the unit price of the processed product or employee labor costs, the profit amount, the selling price of the processed product, the cost price, and the added value amount may be used. The added value amount can be calculated, for example, by subtracting the cost price from the selling price. Furthermore, if multiple production facilities exist to process the same processed product, the added value amount may be allocated to each process at a predetermined ratio. In this way, each process can be evaluated relatively using the added value amount, making it easy to determine which process should be prioritized for improvement.

[0091] The control unit and the method described herein may be implemented by a special-purpose computer configured by configuring a processor and memory programmed to perform one or more functions embodied in a computer program. Alternatively, the control unit and the method described herein may be implemented by a special-purpose computer configured by configuring a processor with one or more dedicated hardware logic circuits. Alternatively, the control unit and the method described herein may be implemented by one or more special-purpose computers configured by combining a processor and memory programmed to perform one or more functions with a processor configured with one or more hardware logic circuits. Furthermore, the computer program may be stored as instructions executed by a computer on a computer-readable non-transitory tangible storage medium.

[0092] The present disclosure is not limited to the above-described embodiments and can be realized in various configurations without departing from the spirit thereof. For example, the technical features in the embodiments corresponding to the technical features in each aspect described in the Summary of the Invention section can be appropriately replaced or combined to solve some or all of the above-described problems or achieve some or all of the above-described effects. Furthermore, if a technical feature is not described as essential in this specification, it can be appropriately deleted. [Explanation of symbols]

[0093] 10...production management device, 11...CPU, 12...storage device, 13...transmitting / receiving unit, 14...display unit, 15...input device, 16...timer, 17...bus, 20...operating state detection device, 20a...first operating state detection device, 20b...second operating state detection device, 20c...third operating state detection device, 20d...fourth operating state detection device, 20e...fifth operating state detection device, 20f...sixth operating state detection device, 21a, 21b...first transmitting / receiving unit, 22a, 22b...second transmitting / receiving unit, 23a, 23b...controller, 25a, 25b...detection unit, 30...production equipment, 31...first production equipment, 32...second production equipment, 33...third production equipment Production equipment, 34...fourth production equipment, 35...fifth production equipment, 36...sixth production equipment, 40...signal tower, 41...conveyor mechanism, 100...production management system, 110...equipment operation information generation unit, 111...production index generation unit, 120...equipment operation information storage unit, 121...production index storage unit, 140...item display area, 141...index display area, 142, 143...classification display area, 144...scroll bar, 146...display area selection unit, 310...casing, 321...opening / closing door, 322...magnet, L1...first production line, L2...second production line, Ln...production line, PC...information processing device, PD1, PD2...terminal device

Claims

1. A display control device for displaying production statuses of a plurality of facilities, an acquisition unit that acquires a start timing, which is a timing at which a process by each of the plurality of pieces of equipment is started, and a stop-related timing, which is a timing at which a process by each of the plurality of pieces of equipment is stopped or a timing at which a predetermined time has elapsed since the process by each of the plurality of pieces of equipment was started; an equipment operation information generating unit that generates equipment operation information including a cycle time of each of the plurality of pieces of equipment and a stop time of each of the plurality of pieces of equipment using the acquired start timing and the stop-related timing; a production index generation unit that uses the generated equipment operation information to generate a production index for each of the plurality of pieces of equipment, the production index including a first amount of loss caused by the occurrence of the downtime, and generates display data that collectively displays the generated production indexes for each of the plurality of pieces of equipment. Display control device.

2. 2. The display control device according to claim 1, The production index generation unit further generates a production index for each of the plurality of facilities, the production index including a second loss amount caused by the delay in the cycle time. Display control device.

3. 3. The display control device according to claim 1, The production index generation unit generates the display data including equipment information indicating equipment that has a high priority for improvement in the production index among the plurality of equipment.

4. 4. The display control device according to claim 3, the production index generation unit further generates the display data including numerical values ​​and graphs statistically indicating the production index. Display control device.

5. 5. The display control device according to claim 4, the production index generation unit generates a cumulative total of the production index per unit period and a daily transition of the production index as numerical values ​​or graphs statistically indicating the production index; Display control device.

6. 6. The display control device according to claim 4 or claim 5, the production index generation unit, when receiving a selection operation to select whether to display the display data including a production index related to monetary value among the generated production indexes for each of the plurality of facilities, or the display data including a production index related to an operation status of the facilities among the generated production indexes for each of the plurality of facilities, generates the display data corresponding to the selection operation. Display control device.

7. A method for displaying production statuses of a plurality of facilities, comprising: A start timing is acquired which is a timing at which a process by each of a plurality of pieces of equipment is started, and a stop-related timing is acquired which is a timing at which a process by each of the plurality of pieces of equipment is stopped or a timing at which a predetermined time has elapsed since the process by each of the plurality of pieces of equipment was started, generating equipment operation information including a cycle time of each of the plurality of pieces of equipment and a stop time of each of the plurality of pieces of equipment using the acquired start timing and the stop-related timing; generating a production index for each of the plurality of facilities, the production index including a first loss amount resulting from the occurrence of the downtime, using the generated facility operation information; The generated production indexes of the plurality of facilities are displayed together. How to view production status.

8. The production status display method according to claim 7, The generated production index for each of the plurality of facilities further includes a second loss amount caused by the delay in the cycle time. How to view production status.

9. The production status display method according to claim 7 or 8, The display of the production index of each of the plurality of facilities includes displaying facility information indicating a facility among the plurality of facilities that has a high priority for improvement in the production index. How to view production status.

Images