JP7286083B2 - PRODUCTION MONITORING DEVICE, PRODUCTION MONITORING METHOD AND PROGRAM - Google Patents

Description

Article 30, Paragraph 2 of the Patent Act applies Monthly Automatic Identification Vol. 32, No. 6 (Volume 428) Nippon Kogyo Publishing

The present invention relates to a production monitoring device, a production monitoring method, and a program for monitoring production by production equipment such as molding machines and press machines.

In a production line, it is possible to collect measurement data such as temperature and pressure during production, which affect the quality characteristics of the products being produced, during the production process, and centrally manage these measurement data using production monitoring equipment. It is done.

In Patent Document 1, for each product processed by the processing machine, each monitoring data of the processing machine is evaluated based on each threshold of a plurality of types of monitoring data, and based on the evaluation result for each product, the processing machine A technique for sorting products processed by is disclosed.

In Patent Document 2, referring to FIG. 28, etc., from the mapping data, while looking at the information on the accuracy of the parts, it is possible to determine the timing of mold maintenance, remanufacture of mold parts, set values of cooling water and mold temperature, It is disclosed that the setting values (holding pressure, nozzle temperature, etc.) of the molding machine are determined appropriately in real time.

JP 2019-046293 A JP 2018-073329 A

Such a production monitoring apparatus is required to perform monitoring to reduce the defective rate of products produced by production equipment and to further improve productivity.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a production monitoring apparatus, a production monitoring method, and a program capable of reducing the defective rate of products produced by production equipment and further improving productivity.

In order to achieve the above object, a production monitoring apparatus according to one aspect of the present invention receives equipment data from a production equipment that continuously produces products, and performs one shot, which is a unit for producing one product in the production equipment. Alternatively, the magnitude of the peak value of the equipment data within one cycle and the position of the peak value on the time axis are grasped, the magnitude of the peak value is compared with a first threshold value, and the time axis of the peak value is determined. A control is provided for comparing the upper position to a second threshold.

In the present invention, the magnitude of the peak value of the facility data and the position of the peak value on the time axis are grasped, the magnitude of the peak value and the first threshold are compared, and the position of the peak value on the time axis and the second is compared with the threshold value, it is possible to reduce the defective rate of the products produced by the production equipment and to further improve the productivity.

In the production monitoring apparatus according to one aspect of the present invention, the equipment data is waveform data as analog data, and the control unit receives the waveform data, and from the received waveform data, the magnitude of the peak value and the The position of the peak value on the time axis is grasped, the magnitude of the peak value is compared with the first threshold, and the position of the peak value on the time axis and the second threshold are compared.

In the production monitoring device according to one aspect of the present invention, the control unit compares the magnitude of the peak value with a first threshold value and generates a first alarm signal based on the comparison result, or is compared with a second threshold value to generate a second alarm signal based on the result of the comparison.

In the production monitoring apparatus according to one aspect of the present invention, the control unit outputs a signal for displaying an alarm using a patrol light (registered trademark) in response to the first alarm signal or the second alarm signal.

In the production monitoring apparatus according to one aspect of the present invention, the control unit outputs waveform display data for displaying the waveform data, the first threshold value, and the second threshold value on the same screen.

In the production monitoring apparatus according to one aspect of the present invention, the control section outputs a plurality of types of waveform display data for displaying the plurality of types of waveform data in synchronization on the same screen at the same time.

In the production monitoring device according to one aspect of the present invention, the control unit outputs time-series display data for displaying time-series data of the equipment data.

In the production monitoring apparatus according to one aspect of the present invention, the control unit synchronizes the plurality of types of time-series data of the equipment data in terms of time and displays them on the same screen at the same time. Output multiple types of time-series display data that display lines.

In a production monitoring device according to one aspect of the present invention, two or more of the production equipment are monitored, and the control unit simultaneously displays a plurality of types of equipment data for one production equipment on the same screen. Output group display data for displaying as one group.

A production monitoring device according to an aspect of the present invention monitors a plurality of production lines each comprising two or more of the production equipment, and the control unit simultaneously displays the equipment data on the same screen for each production line. Output production line display data for display.

A production monitoring method according to one aspect of the present invention receives equipment data from a production equipment that continuously produces products, and performs the above-mentioned data within one shot or one cycle, which is a unit for producing one product with the production equipment. The magnitude of the peak value of the equipment data and the position of the peak value on the time axis are grasped, the magnitude of the peak value is compared with a first threshold value, and the position of the peak value on the time axis and the second Compare with threshold.

A program according to one aspect of the present invention comprises steps of receiving equipment data from production equipment that continuously produces products; A step of grasping the magnitude of the peak value of the equipment data and the position of the peak value on the time axis, the step of comparing the magnitude of the peak value with a first threshold, and the position of the peak value on the time axis. and a second threshold.

ADVANTAGE OF THE INVENTION According to this invention, the defect rate of the product produced with a production facility can be reduced and productivity can be improved further.

It is a figure showing composition of a production system concerning one embodiment of the present invention. 2 is a diagram showing the configuration of a production monitoring system in the production system shown in FIG. 1; FIG. It is a figure which shows the example of a display of the setting value and performance value which concern on one Embodiment of this invention. It is a flow chart which shows operation of a production monitoring device concerning one embodiment of the present invention. It is a figure which shows an example of a structure of the communication data transmitted to the production-monitoring-apparatus side from the PLC side which concerns on one Embodiment of this invention. It is an example of the waveform data of the mold temperature of the molding machine within one shot acquired by the production monitoring device according to the embodiment of the present invention. It is an example of waveform data within one cycle of the processing load of the end mill of the processing machine, acquired by the production monitoring device according to the embodiment of the present invention. FIG. 10 is a diagram showing an example in which a plurality of types of time-series data are temporally synchronized and simultaneously displayed on the same screen;

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram showing the configuration of a production system according to one embodiment of the present invention.
As shown in FIG. 1, a production system 1 collects one or more production facilities 10, 11, ... for continuously producing products, facility data from the production facilities 10, 11, ..., and , production facilities 10, 11, . . . Equipment data includes various measurement data and the like in addition to operation data of production equipment.

The production system 1 according to the present embodiment comprises one production line with the production facilities 10, 11, . 8.

A production monitoring device 30 monitors the production of these eight production lines 1-1, 1-2, . . . 1-8.

The production equipment includes, for example, the molding machine 10, the press machine 11, the processing machine 12, the automatic machine 13, the robot 14, the sensor 15, and the like. There are various other production facilities, including peripheral facilities such as temperature controllers and dryers. Further, the sensor 15 includes a mold temperature sensor, a surface temperature sensor, a pressure sensor of the mold, etc., which are arranged inside the mold used in the molding machine 10, and a temperature sensor, a flow rate sensor, etc., which are arranged around the equipment. There is an incidental sensor of

The PLC 20 collects equipment data from the molding machine 10, press machine 11, processing machine 12, automatic machine 13, robot 14, and sensor 15 in the line. In the case of the molding machine 10, the facility data means molding time, shot No., VP switching position, cushion position, cycle time, plasticizing time, primary injection time, successive pressure, minimum cushion, mold opening time, mold closing time, and the like. The data measured by the sensor 15 is also included in the facility data. The data measured by the sensor 15 also includes analog data (waveform data) such as pressure and temperature within one cycle or one shot, which is a unit for producing one product in production equipment.

The production monitoring device 30 collects the above various equipment data from the eight PLCs 20 and monitors the eight production lines 1-1, 1-2, . . . 1-8 as a whole. A PATLITE (registered trademark) 40 and a display device 50 are connected to the production monitoring device 30 . The production monitoring device 30 can also exchange data remotely via a network (not shown).

FIG. 2 is a diagram showing the configuration of a production monitoring system in the production system 1 shown in FIG. 1. As shown in FIG.
As shown in FIG. 2, the production monitoring system 2 includes the eight PLCs 20, the production monitoring device 30, the Patlite (registered trademark) 40, and the display device 50 described above.

The PLC 20 mainly has a communication section 21 , a control section 22 and a storage section 23 .

The communication unit 21 acquires facility data from the production facilities 10, 11, . . . and sends the acquired data to the production monitoring device 30.

It comprehensively controls the control unit 22 and the PLC 20 as a whole. For example, the control unit 22 functions as a detection unit that detects a communication abnormality between the production equipment 10, 11 . . . For example, if there is a break in the communication path 25 between the production equipment 10, 11, . ), so it is detected as a communication error. If data is not received from one of the production facilities 10, 11, . In addition, it may be regarded as an abnormality due to damage of the relevant production equipment.

An external memory 24 such as an SD memory card or a USB memory can be connected to the PLC 20 according to this embodiment. Equipment data received from the production equipment 10, 11, . . . The accumulated equipment data is transmitted. This makes it possible to flexibly cope with the lack of memory capacity of the storage unit 23 as an internal memory. In particular, when analog data (waveform data) is handled as equipment data as described above, the amount of data becomes enormous. is. Of course, the equipment data may be held in the storage unit 23 without using the external memory 24 .

The production monitoring device 30 mainly has a communication section 31 , a control section 32 and a storage section 33 .

The communication unit 31 receives from the PLC 20 the equipment data and the data regarding the communication abnormality detected by the PLC 20 .

The control unit 32 has a function as a detection unit that detects communication errors with the PLC 20 . For example, if the communication path 34 with the PLC 20 is disconnected (indicated by "x" in the figure), data will not come from the PLC 20 (no response), so it will be detected as a communication abnormality with the PLC 20. .

Based on the reception result by the communication unit 31 and the detection result by the control unit 32 as the detection unit, the control unit 32 detects an abnormality in the production equipment 10, 11, and the connection between the production equipment 10, 11, . It functions as a warning information output unit for outputting information for distinguishing and warning communication abnormalities between the PLC 20 and the production monitoring device 30 respectively. In addition, based on the warning information output from the production monitoring device 30, the control unit 32 detects an abnormality in the production equipment 10, 11, . It functions as a PATLITE (registered trademark) display data output unit that outputs display data for displaying PATLITE (registered trademark) emitting light in different colors on the screen when there is an abnormality in communication with the production monitoring device 30 .

The storage unit 33 accumulates equipment data of the production equipment 10, 11 . . . received via the PLC 20. FIG.

The control unit 32 monitors production by the production equipment 10, 11, . . . based on the equipment data accumulated in the storage unit 33. For example, the control unit 32 manages the tendency value (aging value) of the value of the facility data accumulated in the storage unit 33, and for example, when the value based on the facility data exceeds a predetermined value or is about to exceed, , an alarm is issued from the Patlite (registered trademark) 40 or the like to prompt the operation of the production equipment to be stopped. Incidentally, the production facilities 10, 11, . . . may be forcibly stopped.

The control unit 32 obtains waveform data within one cycle or one shot, which is a unit for producing one product in the production equipment 10, 11, . It functions as means for managing the facilities 10, 11, . . . Management of the production equipment 10, 11, etc. means that when an abnormal value or a tendency to an abnormal value is found in the waveform data, for example, an alarm is issued to the production equipment 10, 11, . . . It means to emit from 40th magnitude.

The control unit 32 has a detection/retransmission request function for confirming whether or not the equipment data and the like have been received from the PLC 20 via the communication unit 31, and requesting retransmission from the PLC 20 when the equipment data and the like cannot be received. Then, the control unit 32 outputs an alert when the facility data or the like cannot be received despite the retransmission request. The alert may be a notification sound, or may be displayed on the display device 50 or the like.

Based on the warning information output from the production monitoring device 30, the Patlite (registered trademark) 40 detects an abnormality in the production equipment 10, 11, . and the production monitoring device 30 are emitted in different colors. For example, PATLITE (registered trademark) 40 emits four colors of blue, yellow, red, and white. When there is no abnormality in the production facilities 10, 11, . . . , they emit blue light. When some of the production facilities 10, 11, . . . are stopped, yellow light is emitted. However, when there is no abnormality in the production facilities 10, 11, ... but some of the production facilities 10, 11, ... are stopped, the PATLITE (registered trademark) 40 emits both blue and yellow light. do. Also, when the production equipment 10, 11 . . . The Patlight (registered trademark) 40 emits red light when there is an abnormality in communication with. Such light emission of the PATLITE (registered trademark) 40 is an example, and light emission in various patterns is conceivable.

Based on the display data output from the production monitoring device 30, the display device 50 displays an abnormality in the production facilities 10, 11, . Here, the equipment data collected by the PLC 20 includes set values for the production equipment 10, 11, . In the production monitoring device 30, based on the equipment data received by the control unit 32 from the PLC 20, setting values and actual values for the production equipment 10, 11, . Functions as a value display data output unit. The display device 50 displays the set values and actual values on the screen based on this display data. An example of the screen is shown in FIG. The actual production facilities 10, 11, . . . have differences even if they are the same production facilities. By comparing the set value displayed on the screen with the actual value, the operator can know the machine difference, and can take measures accordingly.

Next, the operation of the production monitoring device 30 will be described with reference to the flowchart shown in FIG.

The control unit 32 determines whether or not communication with the PLC 20 side is disconnected (step 401).

When the communication with the PLC 20 side is disconnected, the control unit 32 executes the operation of reconnecting with the PLC 20 side (step 402).

When communication with the PLC 20 side is not disconnected, or when communication with the PLC 20 side is not disconnected due to reconnection, the control unit 32 reads the header information from the communication data transmitted from the PLC 20 side ( Step 403), read the facility data and the like included in the communication data based on the header information (step 404).

FIG. 5 shows an example of the configuration of communication data transmitted from the PLC 20 side to the production monitoring device 30 side. ), alarm type (distinguish whether the alarm is an equipment alarm or a PLC alarm), sensor (1) data, sensor (2) data, and so on. An equipment alarm indicates, for example, an abnormality in the production equipment 10, 11, and a PLC alarm indicates an abnormality in communication between the production equipment 10, 11, .

Next, obtain waveform data within one cycle or one shot, which is a unit for producing one product at the production equipment 10, 11, etc., and manage the production equipment 10, 11, etc. based on the waveform data. The points to be done will be explained in more detail.

FIG. 6 is an example of waveform data of the mold temperature of the molding machine 10 within one shot, acquired by the production monitoring device 30 .

The mold temperature of the molding machine 10 first rises from the start of injection within one shot, reaches a peak at a predetermined point, and then falls. The temperature at peak (t _max ) must be within a given range (t ₀ -t ₁ ). In addition, the point in time when the mold temperature of the molding machine 10 reaches its peak, that is, the time (T _peak ) from the start of injection until the mold temperature of the molding machine 10 reaches its peak is also within a predetermined range (T ₀ to T ₁ ). There is a need.
If the temperature at the peak (t _max ) is lower than the predetermined range (t ₀ to t ₁ ), it becomes difficult for the material to flow into the mold, resulting in poor molding.
・If the peak temperature (t _max ) is higher than the predetermined range (t ₀ to t ₁ ), the material will flow faster in the mold, the time to reach the opposite shore will be shorter, and burrs will occur.
If the time (T _peak ) until the mold temperature of the molding machine 10 reaches its peak is shorter than the predetermined range (T ₀ to T ₁ ), it is presumed that the injection port of the mold has widened due to aging. It is detected as the time when maintenance should be performed.
・When the time (T _peak ) until the mold temperature of the molding machine 10 reaches its peak is longer than the predetermined range (T ₀ to T ₁ ), it is estimated that the injection port of the mold is clogged with dust. This is detected as the timing at which type confirmation should be performed.

The control unit 32 determines whether the peak temperature (t _max ) of the waveform data of the mold temperature of the molding machine 10 within one shot is within a predetermined range (t ₀ to t ₁ ). In addition, the point in time when the mold temperature of the molding machine 10 reaches its peak, that is, the time (T _peak ) from the start of injection until the mold temperature of the molding machine 10 reaches its peak is also within a predetermined range (T ₀ to T ₁ ). determine whether there is

If the peak temperature (t _max ) of the waveform data of the mold temperature of the molding machine 10 within one shot is not within a predetermined range (t ₀ to t ₁ ), the control unit 32 activates the patrol light. (registered trademark) 40 emits white light, a similar display is made on the display device 50, and an instruction to raise or lower the mold temperature is displayed on the display device 50. FIG. Alternatively, the control unit 32 may be controlled to raise or lower the mold temperature via the PLC 20 .

The control unit 32 sets the time (T _peak ) until the mold temperature of the molding machine 10 reaches a peak in a predetermined range (T ₀ to T ₁ ), the PATLITE (registered trademark) 40 emits white light, a similar display is made on the display device 50, and the display device 50 further displays instructions for mold maintenance and confirmation.

FIG. 7 is an example of waveform data within one cycle of the processing load of the end mill of the processing machine 12 acquired by the production monitoring device 30 .

Within one cycle, the processing load of the end mill of the processing machine 12 first increases from the start of processing, reaches a peak at a predetermined point, and then decreases. The peak magnitude (P _max ) must be within a predetermined range (P ₀ -P ₁ ). In addition, the point in time when the processing load of the end mill of the processing machine 12 peaks, that is, the time (T _peak ) from the start of processing until the processing load of the end mill of the processing machine 12 peaks is also within a predetermined range (T ₀ to T ₁ ).
• If the magnitude at the peak (P _max ) is lower than a predetermined range (P ₀ to P ₁ ), it is presumed that there is some problem on the machined side.
・If the magnitude (P _max ) at the peak is higher than a predetermined range (P ₀ to P ₁ ), it is presumed that the end mill has become dull.
・If the time (T _peak ) until the processing load of the end mill of the processing machine 12 peaks is shorter than the predetermined range (T ₀ to T ₁ ), the mounting position of the end mill is shifted in the Z direction from the predetermined position. presumed to be declining.
・If the time (T _peak ) until the processing load of the end mill of the processing machine 12 peaks is longer than the predetermined range (T ₀ to T ₁ ), the mounting position of the end mill is shifted in the Z direction from the predetermined position. presumed to be declining.

The control unit 32 determines whether the peak size (P _max ) is within a predetermined range (P ₀ to P ₁ ) for the waveform data within one cycle of the processing load of the end mill of the processing machine 12. In addition, the point in time when the processing load of the end mill of the processing machine 12 peaks, that is, the time (T _peak ) from the start of processing to the peak processing load of the end mill of the processing machine 12 is also within a predetermined range (T ₀ to T ₁ ).

The control unit 32 controls the waveform data within one cycle of the processing load of the end mill of the processing machine 12 when the magnitude (P _max ) at the peak is not within a predetermined range (P ₀ to P ₁ ). causes the PATLITE (registered trademark) 40 to emit white light, displays a similar display on the display device 50, and further displays on the display device 50 to prompt replacement of the end mill.

The control unit 32 sets the time (T _peak ) until the processing load of the end mill of the processing machine 12 peaks within a predetermined range (T ₀ to T ₁ ), the patrol light (registered trademark) 40 emits white light, a similar display is made on the display device 50, and an instruction to confirm the mounting state of the end mill is displayed on the display device 50. .

The production monitoring device 30 according to this embodiment obtains waveform data within one cycle or one shot from the equipment data received from the PLC 20, and manages the production equipment 10, 11, ... based on the waveform data. . Typically, upper and lower limits are set for the peak value of waveform data within one cycle or one shot, and when the peak value exceeds the upper limit value or becomes smaller than the lower limit value, Issue a predetermined warning, etc. In addition, the point in time when the waveform data in one cycle or one shot peaks, that is, the range of time from the start of one cycle or one shot to the peak is set, and the time is less than a predetermined time, or the predetermined time is When exceeding, a predetermined warning or the like is issued. This makes it possible to more accurately ascertain abnormalities in the production facilities 10, 11, . . . It should be noted that the upper and lower limits set as described above, or the range of time, that is, the range of thresholds, may be set as appropriate.

In the above embodiment, the control unit 32 obtains waveform data within one cycle or one shot and manages the production facilities 10, 11, . . . based on the waveform data. Various management is possible based on the facility data accumulated in 33.

For example, the above peak values and other measured values may be displayed in time series and managed as time series data.

You may manage the threshold value of measured values other than said peak value. For example, if the measured value is equal to or higher than a predetermined upper limit threshold value, there is a possibility that a foreign matter defect may occur in the product, and if it is equal to or less than a predetermined lower limit value, it may be assumed that a dimensional defect may occur in the product. A predetermined warning may be issued.

Manage the trend value (change value over time) of the value of the equipment data, for example, when the value based on the equipment data exceeds a predetermined value, or when it is predicted in advance that it will be exceeded, a predetermined warning is issued. good.

A plurality of types of waveform data within one cycle or one shot may be temporally synchronized and displayed simultaneously on the same screen. For example, the waveform data of the in-mold resin temperature, the in-mold pressure, the mold surface temperature, and the molding machine injection pressure in the molding machine may be simultaneously displayed on the display device. This makes it possible to accurately grasp the state of molding by the molding machine.

As for time-series data, a plurality of types of time-series data may be synchronized in terms of time and displayed simultaneously on the same screen (see FIG. 8). At this time, as shown in FIG. 8, by providing a same-time comparison line on the screen, it becomes easier to compare data at the same time among a plurality of types of time-series data.

A plurality of types of equipment data for one production equipment may be displayed simultaneously as one group on the same screen. For example, the data of the temperature controller, dryer, internal mold temperature sensor, hot runner, flow sensor, internal mold pressure sensor, and mold surface temperature sensor of the molding machine may be displayed simultaneously on the same screen.

Equipment data for each production line may be simultaneously displayed on the same screen. For example, a molding machine 10, a press machine 11, a processing machine 12, an automatic machine 13, a robot 14, a sensor belonging to any one of eight production lines 1-1, 1-2, . (1) The equipment data from 5 may be displayed simultaneously on the same screen.

In this embodiment, when a product defect is predicted, the production monitoring device issues a warning or the like or controls the set values of the production equipment. Alternatively, the production monitoring device may manage so that the robot removes the product produced by the production facility or the product being produced from the production line as a defective product.

The present invention is not limited to the above embodiments, and various applications and modifications are possible, and the scope of such applications and modifications also belongs to the technical scope of the present invention.

1: production system 1-1, ...: production line 2: production monitoring system 10, 11 ...: production equipment 10: molding machine 11: press machine 12: processing machine 13: automatic machine 14: robot 15: sensor 20: PLC (programmable logic controller)
21: communication section 22: control section 23: storage section 24: external memory 25: communication path 30: production monitoring device 31: communication section 32: control section 33: storage section 34: communication path 40: Patlite (registered trademark)
50: display device

Claims (11)

Equipment data is received from a production equipment that continuously produces products, and the magnitude and peak value of the equipment data within one shot or one cycle, which is a unit for producing one product with the production equipment. grasp the position on the time axis of
comparing the magnitude of the peak value to a first threshold range and generating a first alert signal if the magnitude of the peak value is not within the first threshold range;
Comparing the time-axis position of the peak value with a second threshold range , and generating a second alarm signal if the time-axis position of the peak value is not within the second threshold range.
A production monitoring device comprising a controller. The production monitoring device according to claim 1,
The equipment data is waveform data as analog data,
The control unit receives the waveform data, grasps the magnitude of the peak value and the position of the peak value on the time axis from the received waveform data, and determines the magnitude of the peak value and the first threshold range . and comparing the position on the time axis of the peak value with the second threshold range . The production monitoring device according to claim 1 or 2 ,
The production monitoring device, wherein the control unit outputs a signal for displaying an alarm using a patrol light (registered trademark) in response to the first alarm signal or the second alarm signal. A production monitoring device according to claim 2,
The control unit comprises a coordinate system having a first axis and a second axis, the waveform data of one shot or one cycle displayed in the coordinate system, and the waveform data displayed on the waveform data. the peak value for a shot or one cycle, the magnitude of the peak value and the first threshold range displayed on the first axis, and the time of the peak value displayed on the second axis. A production monitoring device that outputs waveform display data for displaying the position on the axis and the second threshold range on the same screen. The production monitoring device according to claim 2 or 4 ,
The control unit temporally synchronizes the plurality of types of waveform data and outputs a plurality of types of waveform display data for simultaneous display on the same screen. A production monitoring device according to any one of claims 1 to 5 ,
The control unit outputs time-series display data for displaying time-series data of the equipment data. Production monitoring device. A production monitoring device according to any one of claims 1 to 6 ,
The control unit temporally synchronizes a plurality of types of time-series data of the equipment data, displays them on the same screen at the same time, and outputs a plurality of types of time-series display data that displays a simultaneous time comparison line on the screen. Do production monitoring equipment. A production monitoring device according to any one of claims 1 to 7 ,
monitoring two or more of the production facilities;
The control unit outputs group display data for displaying a plurality of types of equipment data on one production equipment as one group at the same time on the same screen. Production monitoring device. A production monitoring device according to any one of claims 1 to 8 ,
monitoring a plurality of production lines consisting of two or more of the production equipment,
The production monitoring device, wherein the control unit outputs production line display data for simultaneously displaying the facility data on the same screen for each production line. Receive equipment data from production equipment that continuously produces products,
Grasping the magnitude of the peak value of the equipment data and the position of the peak value on the time axis within one shot or one cycle, which is a unit for producing one product with the production equipment,
comparing the magnitude of the peak value to a first threshold range and generating a first alert signal if the magnitude of the peak value is not within the first threshold range;
Comparing the temporal position of the peak value to a second threshold range and generating a second alarm signal if the temporal position of the peak value is not within the second threshold range. Monitoring method. receiving equipment data from a production equipment that continuously produces a product;
grasping the magnitude of the peak value of the equipment data and the position of the peak value on the time axis within one shot or one cycle, which is a unit for producing one product with the production equipment;
comparing the magnitude of the peak value to a first threshold range and generating a first alert signal if the magnitude of the peak value is not within the first threshold range;
Comparing the time-axis position of the peak value with a second threshold range , and generating a second alarm signal if the time-axis position of the peak value is not within the second threshold range. A program that makes a computer run and .

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