JP2021196801A - Production analysis system - Google Patents

Abstract

To provide a production analysis system that analyzes operating conditions of plural facilities which are operated by workers, and that readily and accurately evaluates the work efficiencies of the respective workers.SOLUTION: A production analysis system 1 includes operation detectors 14A, 14B, and 14C that are installed in respective facilities A, B, and C and detect the behaviors of respective facilities, an arithmetic unit that decides based on signals of the operation detectors whether the facilities are in operation or being suspended, and obtains the number of operating facilities, a first recorder that records together with time information one or both of pieces of operation information on the respective facilities A, B, and C and the number of operating facilities at certain intervals, and a display device 13 that displays the number of operating facilities together with the time information.SELECTED DRAWING: Figure 1

Description

The present invention relates to a production analyzer that analyzes the operating state of a plurality of facilities.

Properly allocating production equipment and workers at the production site where products are produced and increasing production efficiency are directly linked to lowering manufacturing costs and stabilizing management.

In manufacturing, various production processes are set up according to the characteristics of the product, such as low-mix mass production and high-mix low-volume production. The line production method, in which work is assigned to each work station on the production line and processing progresses as the product moves on the line, allows a dedicated process to be economically installed, and demand for the same product. And orders are suitable for mass production of small varieties that are continuous over a period of time.

In such a line where workers and old and new equipment coexist, the line cycle time can be easily estimated based on the operating conditions of the new equipment and the operation of the workers, and the relationship between production fluctuations and financial indicators can be determined at the production site. In order to display the equipment in a time-series manner in an easy-to-understand manner, Patent Document 1 specifies equipment that can generate a time-series operating state and is a bottleneck, and identifies a cycle that is a bottleneck. In the cycle that is the bottleneck, the patrol time, which is the sum of the time when the worker was working on the equipment in advance and the time when he was moving between the equipment, was calculated, and the worker for the specified equipment Describes a technique for calculating the rate-determining time, which is the sum of the time during which the work was done in advance and the time during which the equipment was operating, and calculating the upper and lower limits of the line cycle time of the line based on the patrol time and the rate-determining time. Has been done. In addition, regarding the balance of product production, figures showing fixed costs and variable costs are arranged in series and displayed in the negative quadrant of the coordinate plane, and figures showing fixed costs are displayed in a manner distinct from variable costs. , A production performance display device that displays a figure showing a profit in a positive or negative quadrant of a coordinate plane according to a sign of the profit is described.

Japanese Unexamined Patent Publication No. 2017-102544

However, the invention described in Patent Document 1 is premised on a plurality of facilities constituting one line, and the product flows through the facilities constituting the line in order. Therefore, the difference in work efficiency between a skilled worker and an inexperienced worker is small.

On the other hand, in high-mix low-volume production, a cell production method in which one worker operates multiple facilities with different functions and intermediate products are produced via multiple facilities, or one worker is the same. It is efficient to use a parallel process in which intermediate products to be handled by operating a plurality of facilities having the above functions are produced via any one of the plurality of facilities. In high-mix low-volume production, intermediate products with various specifications flow, so various ideas have been made based on the experience and intuition of the workers.

For this reason, the work efficiency differs greatly between skilled workers and inexperienced workers, and improvement has been desired. However, recording and analyzing the work took many times longer than the actual work period and was not efficient.

In view of the above problems, the present invention is a production analyzer that analyzes a process in which a worker operates a plurality of facilities and processes an intermediate product one unit at a time, and efficiently and accurately evaluates the work efficiency of each worker. It is an object of the present invention to provide a production analyzer.

The production analyzer of the present invention for solving the above-mentioned problems is
(1) A production analyzer that analyzes the process of processing intermediate products one unit at a time by multiple facilities operated by workers.
An operation detector provided in the equipment that detects the operation of a plurality of the equipment, and
An arithmetic unit that determines whether the equipment is in operation or stopped based on the signal of the operation detector and obtains the number of operating units.
A first recording device that records one or both of the operation information and the number of operating units of each of the above equipment together with the time information at regular time intervals.
A display device that displays the number of operating units together with the time information,
Consists of.

Further, the production analyzer of the present invention preferably has the following aspects.

(2) The production analyzer further includes a camera that captures the work of the worker and a second recording apparatus that records the recorded information captured by the camera together with the time information.

(3) The production analyzer stores in advance the standard number of operating units, which is a predetermined number of operating units.
Moreover, the production analyzer has an extraction processing unit that extracts recorded information by sending a recorded signal to the camera when the number of operating units is less than the standard number of operating units.

(4) The production analyzer stores in advance the standard number of operating units, which is the predetermined number of operating units.
Further, the production analyzer has an extraction processing unit that stores recorded information in the second recording device and extracts at least a part of the stored recorded information when the number of operating units is equal to or less than the reference operating number. ..

(5) The extraction processing unit of the production analyzer is
When the number of operating units becomes equal to or less than the standard operating number, recording of recorded information is started in the second recording device by transmitting a recording signal to the camera, and the operating number is equal to or less than the standard operating number. Recording information is continued for the period of, and when the number of operating units transitions to a state larger than the reference number of operating units, a recording signal for stopping recording is transmitted.
Further, when the number of operating units transitions from the standard operating number to a state larger than the standard operating number, the state shifts from the time when the operating number reaches the standard operating number to a state in which the operating number is larger than the standard operating number. The recording information up to the time is excluded and the recording information is extracted.

(6) The production analyzer stores in advance the standard number of operating units, which is the predetermined number of operating units.
Further, the production analyzer has an extraction processing unit that extracts recorded information for a period in which the number of operating units is less than the standard operating number and a certain period immediately before the time when the number of operating units transitions to less than the standard operating number.

(7) The production analyzer always records the recorded information from the camera in the second recording device, and the extraction processing unit has a period during which the number of operating units is less than the reference operating number. By maintaining the recorded information recorded in a certain period immediately before the time when the number of units becomes less than the reference operating number, and excluding the recorded information recorded in other periods from the recorded information recorded in the second recording device. , The recorded information is extracted.

(8) The second recording device is included in the first recording device.

(9) The operation detector is a sensor that detects the lighting of the operation indicator lamp provided in the equipment.

INDUSTRIAL APPLICABILITY According to the present invention, a production analyzer for efficiently evaluating the work efficiency of each worker is provided as compared with the conventional case. By using the production analyzer of the present invention, it becomes easier for the operator to identify the work problem than before, and as a result, the work efficiency can be improved quickly. As a result, it can contribute to the improvement of the equipment utilization rate and the improvement of labor productivity.

FIG. 1 is a diagram schematically showing a configuration example of the equipment and the production analyzer according to the present invention. FIG. 2 is an example of a time chart of the number of operating units recorded by the production analyzer according to the present invention and the work contents of the worker for each facility. FIG. 3 shows, in the first embodiment of the present invention, when the recorded information is extracted when the number of operating units is less than the reference operating number, until the recorded information is recorded in the recording device from the operation detector via the arithmetic unit. It is a time chart showing the processing of. FIG. 4 shows a process of accumulating recorded information in a second recording device and extracting at least a part of the accumulated recorded information when the number of operating units is equal to or less than the reference operating number in the second embodiment of the present invention. It is a time chart. FIG. 5 shows from the operation detector in the third embodiment of the present invention when the recorded information is extracted from the period when the number of operating units is less than the standard operating number and the recorded information from a certain time before the period when the number of operating units is less than the standard operating number. It is a time chart which showed the process until the recording information is recorded in the recording apparatus via an arithmetic unit. 6 (a) and 6 (b) are diagrams schematically showing a configuration example of an arithmetic unit and a recording device in the production analysis device of the present invention.

Hereinafter, embodiments of the present invention will be described.
The production analyzer of the present invention is a production analyzer that analyzes a process in which a plurality of facilities operated by an operator process an intermediate product one unit at a time.
An operation detector installed in the equipment that detects the operation of multiple equipment,
An arithmetic unit that determines whether each facility is in operation or stopped based on the signal of the operation detector and obtains the number of operating units.
A first recording device that records one or both of the operation information and the number of operating units of each facility together with the time information at regular time intervals.
It consists of a display device that displays the number of operating units together with time information.

According to the production analyzer of the present invention, it is possible to easily identify equipment interference in which a plurality of equipments are stopped at the same time and one or more equipments are in a state of waiting for a worker's pre-setup or post-setup. .. The equipment interference referred to here means a situation in which equipment exceeding the number of workers is stopped at the same time. For example, if there is one worker, two or more equipments are stopped at the same time. .. By grasping the time zone when the equipment exceeding the number of workers is stopped, it is possible to selectively analyze only the time zone when the work efficiency is poor, and the analysis efficiency can be improved.

In the present invention, the process in which a plurality of facilities operated by an operator process an intermediate product one unit at a time is an object that is an intermediate product such as machining, press working, assembling, cooking, heat treatment, quenching, marking, and the like. The target is the process of repeating the operation of manually setting an object (pre-setup), processing it automatically by the device, and then manually removing it (post-setup).

In such a processing process, the load time in which the equipment can be operated excluding the break time is divided into the stop time such as the pre-setup and the post-setup and the operating time during the actual processing. Then, the ratio of the operating time to the load time is defined as the hourly operating rate.
Since the equipment automatically processes intermediate products except for the downtime of the equipment such as pre-setup and post-setup, the time utilization rate can be increased by adjusting the time allocation so that multiple equipments do not stop at the same time.

In the present invention, in the process of processing not only a single facility but also a plurality of intermediate products at the same time, the operation of a plurality of facilities is performed by work analysis for improving the efficiency of work such as pre-setup and post-setup. Detect and identify the time zone for work analysis based on the number of operating equipment.

It is desirable that the production analyzer of the present invention further has a camera for photographing the work of the operator and a second recording device for recording the recording information and the time information photographed by the camera.
According to the production analyzer of the present invention, since the recorded information and the time information are recorded in the second recording device, the work efficiency of the worker is efficiently improved by performing the work analysis only in the time zone when the number of operating units is small. Can be tied to. As the time information referred to here, time information using Japan Standard Time can be used. It is also possible to use relative time information based on the start of operation of the equipment.

The production analyzer of the present invention stores in advance a reference operating number, which is a predetermined operating number.

It is desirable to set the standard operating number to the total number of equipment minus the number of workers in the process. For example, in the case of having a large number of equipment in which three equipments are operated by one person, the standard number of operating units is two. The extraction processing unit can perform processing for extracting recorded information when the number of operating units is less than the standard operating number, that is, when the number of operating units is one or less, based on the set reference operating number. One of the three devices that is stopped can be regarded as the required stop time that is stopped by the work of the operator. Since the other one is a waiting time for work, it can be regarded as a target for work analysis.

In one preferred embodiment, the production analyzer has an extraction processing unit that performs a process of extracting recorded information by sending a recorded signal to a camera when the number of operating units is less than the standard operating number. Is desirable.

According to the production analyzer of the present embodiment, only the time zone required for the analysis is recorded, so that the analysis can be performed more efficiently.

In another preferred embodiment, the production analyzer stores recorded information in the second recording device when the number of operating units is equal to or less than the reference operating number, and extracts at least a part of the stored recorded information. It is preferable that the extraction processing unit is provided. The recording information is recorded when the number of operating units is less than or equal to the standard operating number, and the recording is continued for the period when the number of operating units is less than or equal to the standard operating number. The time when recording is interrupted is defined as the time when the number of units exceeds the number of units. Furthermore, when the number of operating units changes from the standard operating number to a state larger than the standard operating number, the recorded information from the time when the operating number reaches the standard operating number to the time when the operating number shifts to a state larger than the standard operating number. It is preferable to extract the recorded information by excluding.

In many cases, there is a cause for the equipment to be suspended and waiting for work even before the state is reached. Therefore, when conducting work analysis, it is desirable to include the period before the equipment is shut down as the target of work analysis. Therefore, the extraction processing unit continuously accumulates the recorded information including the period during which the unit is operated at the standard operating number, and the recording information is continuously accumulated, that is, during the period when the work waiting is generated, that is, for the period less than the standard operating number. By continuously recording and shifting to a state where the number of operating units is larger than the standard number of operating units, it is determined that the work waiting has been resolved and recording is stopped, so that work analysis can be performed efficiently.

In addition to this, when the number of operating units transitions from the standard operating number to a state higher than the standard operating number, in other words, when the operating number does not fall below the standard operating number and operates to a larger number than the standard operating number. Is determined not to extract the recorded information during the period of operation in a state where the number of operating units is larger than the standard operating number after reaching the standard operating number. The period of operation with the standard number of operating units includes the period when there is a cause of waiting for work, but if the number of operating units can be operated without falling below the standard number of operating units, the event subject to work analysis is included. This is because there is a high possibility that it will not be possible.

Specifically, the extraction processing unit of the production analyzer starts recording the recorded information in the second recording device by sending a recording signal to the camera when the number of operating units is equal to or less than the reference operating number. Then, recording is continued for a period equal to or less than the standard operating number, and when the number of operating units transitions to a state larger than the standard operating number, a stop recording signal for interrupting recording is transmitted. Then, from the recorded information, it is determined to exclude the recorded information of the period in which the operating number is increased without falling below the standard operating number after reaching the standard operating number from the extraction target. By adopting such a method, it is possible to give a clear recording instruction to the camera by a recording signal. Further, when the number of operating units changes from the standard number of operating units to a larger number, the recording information can be temporarily separated by transmitting a recording signal for stopping recording. Further, when the recorded information during the period that does not fall below the standard operating number is no longer needed, the unnecessary recorded information can be easily excluded.

In the present embodiment, excluding unnecessary recorded information may simply set a flag for either or both of the time information and the recorded information. Alternatively, the data may be actually deleted, and the method does not matter as long as the data can be identified.

As a preferred further embodiment, the timing at which recording is started may be determined not only by the number of operating units but also retroactively. In the present embodiment, the production analyzer may have an extraction processing unit that extracts recorded information for a period in which the number of operating units is less than the standard operating number and a certain period immediately before the time when the number of operating units becomes less than the standard operating number. preferable.

According to the production analyzer of the present embodiment, the time zone in which the number of operating units is smaller than the standard operating number and the time zone in which the cause is required for the analysis are recorded, so that the analysis can be performed more efficiently. ..

In the present embodiment, the fixed period immediately before the time when the number of operating units is less than the standard operating number is, for example, a fixed period before the time when the number of operating units becomes one when the standard operating number is two. .. It is desirable to appropriately set the period according to the target analysis and the labor required for the analysis. For example, the period can be set to 5 minutes and the recorded information from 5 minutes before can be extracted.

The production analyzer of the present embodiment constantly records the recorded information from the camera in the second recording device. The extraction processing unit maintains the recorded information recorded during the period when the number of operating units is less than the standard operating number and the time immediately before the time when the number of operating units is less than the standard operating number, and the recorded information recorded during other periods. Can be extracted from the recorded information recorded in the second recording device.

In the present embodiment, since the recorded information before deciding whether or not to record the recorded information is required, the recorded information is continuously recorded in the recording device for the entire recording period, and then the recorded information is recorded in the recording device. It is preferable that the recording device erases the data after a certain period of time. With such a recording device, unnecessary recording information is less likely to be accumulated, and the recording device can be effectively used.

In the present invention, the second recording device for storing the recorded information is included in the first recording device for recording one or both of the operation information and the number of operating units of each facility together with the time information at regular time intervals. It may be. Alternatively, the first recording device and the second recording device may be provided independently. However, it is preferable that the second recording device is included in the first recording device. When the first recording device and the second recording device are independent and separate devices, the second recording device can be applied as it is to a widely used photographing device, which is advantageous in terms of cost, while recording information. It is difficult to link the function to extract necessary information from. If the second recording device is included in the first recording device, there is an advantage that it is easy to link the function of extracting necessary information from the recorded information.

According to the production analyzer of the present embodiment, the operation detector can be a sensor for detecting the lighting of the operation indicator lamp provided in the equipment. By using a sensor that detects the lighting of the operation indicator, it is possible to easily obtain an operation signal from the equipment.

Hereinafter, the first to third embodiments of the present invention will be described in more detail with reference to the drawings. FIG. 1 is a diagram schematically showing the configurations of the production analyzer 1 and the equipments A, B, and C monitored by the production analyzer 1, which are common to the first to third embodiments of the present invention. ..

In this embodiment, a process of having multiple equipment in which one worker M operates the same three equipments A, B, and C will be described. As an example, the equipments A, B, and C are NC processing machines, and process a block-shaped material which is an intermediate product to obtain a product having a desired shape. In processing, one unit of processing is one, and equipments A, B, and C are devices for processing one material each.

NC processing machines, which are facilities A, B, and C, are computer-aided manufacturing (CAM: computer-aided manufacturing) type devices that are connected to an information processing device and process materials based on the processing information sent from the information processing device. ..

The equipments A, B, and C are each equipped with operation indicator lights 14A, 14B, and 14C. The operation indicator lights 14A, 14B, and 1C each have a signal light of three colors. As for the signal lights, in order from the top, red indicates failure, yellow indicates stop, and green indicates processing. The red signal light is energized when the control device of the processing machine detects a failure, and is not energized at other times. Green is energized when the NC processing machine is operating according to the above processing information, and yellow is in the state where the power of the processing machine is ON and is lit at other times.

In this embodiment, the operation detectors 10A, 10B, and 10C are arranged one by one for the equipments A, B, and C. The operation detectors 10A, 10B, and 10C have three optical sensors closely attached to the three-color signal lamps of the operation indicators 14A, 14B, and 14C, respectively. The operation detectors 10A, 10B, and 10C detect the operation information of each of the equipments A, B, and C based on the light intensity of the signal lamp detected by the optical sensor, and send the operation information to the arithmetic unit through the wireless line.

6 (a) and 6 (b) schematically show the configurations of the arithmetic unit 11, the first recording device 12, and the second recording device 15 in the embodiment. In the most preferred embodiment, the arithmetic unit 11 constitutes a part of one computer 2 together with the first recording device 12 and the second recording device 15. As another example, either or both of the first recording device 12 and the second recording device 15 may be a device separate from the computer 2 as an external recording device. Further, as shown in FIG. 6 (a), the first recording device 11 and the second recording device 15 may be independent recording devices, or as shown in FIG. 6 (b), a second recording device. The recording device 15 may be configured as a part of the first recording device 11.

The arithmetic unit 11 aggregates the operation information wirelessly transmitted from the operation detectors 10A, 10B, 10C corresponding to the three equipments A, B, and C, respectively, and collects the operation information of the equipments A, B, and C and the operation. The number of units is recorded in the first recording device 12 together with the time information at regular time intervals.

The computer 2 is connected to the display device 13 and the camera 17. The display device 13 displays time information of the number of operating units aggregated by the arithmetic unit 11. The camera 17 captures the work of the operator and records it in the second recording device 15 as recording information.

The camera 17 is controlled by the extraction processing unit 16 included in the arithmetic unit 11. The extraction processing unit 16 controls the camera 17 to send a recording signal and a stop signal. Further, the extraction processing unit 16 manages the recorded information recorded in the second recording device 15 and selects the information to be extracted. The extraction processing unit 16 may be in the form of a module in which hardware and software are integrated, or may be a program resident in a ROM or the like.

FIG. 2 shows an example of a time chart of the number of operating units and the work contents of the operator recorded by the production analyzer 1. The items of equipment A, equipment B, and equipment C in FIG. 2 show the work contents of the worker for each time, which are analyzed from the contents of the recording of the camera 17. The chart at the bottom of FIG. 2 shows the number of operating units for each time, which is aggregated by the arithmetic unit 11. This chart is sequentially updated and displayed on the display device 13.

In this way, the time chart showing the number of operating units can be easily confirmed when the number of operating units is reduced to one, the tendency of the decrease in the number of operating units up to that point can be confirmed from the display device 13, and the work of the operator is further performed. The procedure can be analyzed from the tagged recording information.

FIG. 3 shows, in the first embodiment embodied by the production analyzer 1, the extraction processing unit 16 of the arithmetic unit 11 records the second record based on the operation state detected by the operation detectors 10A, 10B, 10C. It is a time chart which showed the process until the recording information is recorded in the apparatus 15.

The time charts of the facilities A, B, and C are operation signals transmitted from the operation detectors 10A, 10B, and 10C provided in the respective facilities, and the HIGH is in the operating state and the LOW stopped state. The chart of the number of operating units displays a numerical value obtained by totaling the operation signals sent from the equipments A, B, and C. When the number of operating units is 0, it indicates "0", and when it is 3, it indicates "3".

In the first embodiment, the standard operating number is two. In this state, one worker M is working on any of the equipments A, B, and C, and there is no "waiting for work". The extraction processing unit 16 of the production analyzer 1 extracts the recorded information by sending a recording signal to the camera 17 when the number of operating units is less than the standard operating number, that is, one or zero units. Therefore, when the number of operating units is 1 or 0, a recording signal is transmitted to the camera, and the recording information during this period is recorded in the second recording device. Further, the number of operating units obtained by the arithmetic unit 11 is identified on the time chart and displayed on the display device 13.

In the time chart shown in FIG. 1, the number of operating units is one or less in FIG. 3 at time s0 to time s2, time s5 to time s6, time s7 to time s8, time s9 to time s10, and time. The period is indicated by s15 to time s16, time s17 to time s18, time s19 to time s20, time s23 to time s26, and time s29 to 31, and during this period, the extraction processing unit 16 of the arithmetic unit 11 refers to the camera 17. The recording signal is sent out, and the recording information of the period is stored in the second recording device 15. The recorded signals are time x1-0 to time x1-1, time x1-2-2 time x1-3, time x1-4 to time x1-5, time x1-6 to time x1-7, time x1-8 to time x1. -9, time x1-10 to time x1-11, time x1-12-time x1-13, time x1-14 to time x1-15, time x1-16 to time x1-17 y1-0 to time y1-1, time y1-2 to time y1-3, time y1-4 to time y1-5, time y1-6 to time y1-7, time y1-8 to time y1-9, time The recording information in the period of y1-10 to time y1-11, time y1-12-time y1-13, time y1-14 to time y1-15, time y1-16 to time y1-17 is the second recording device. Recorded in.

FIG. 4 shows, in the second embodiment of the production analyzer 1, the extraction processing unit 16 of the arithmetic unit 11 attaches to the second recording device 15 based on the operation state detected by the operation detectors 10A, 10B, 10C. It is a time chart which showed the process of recording and extracting the recorded information.
Since the processing up to the arithmetic unit 11 is the same as that of the first embodiment, the description thereof will be omitted.

Also in the second embodiment, the standard operating number is two. In the present embodiment, when the number of operating units is equal to or less than the standard number of operating units, that is, when the number of operating units is between 0 and 2, the recorded information is stored in the second recording device 15, and at least the stored recorded information is stored. Extract a part. Therefore, all the recorded information is stored in the second recording device 15 during the period when the number of operating units is one or less, but when the number of operating units is two, the recorded information is stored in the second recording device depending on the number of operating units thereafter. It is determined whether it is stored in or not. After that, when the number of operating units changes to one, the recorded information is recorded, but when the number of operating units changes to three, the recorded information is not recorded. When the number of operating units is two, all the images of the camera 17 are once recorded in the second recording device 15, and whether or not to extract is determined by the number of operating units thereafter.

In FIG. 4, when the number of operating units is two or less, all the recorded information is once recorded.
In the time chart shown in FIG. 4, the number of operating units is 2 or less in FIG. 4 at time s0 to time s3, time s4 to time s11, time s12 to time s13, time s14 to time s21, and time. It is a period indicated by s22 to time s27 and time s28 to time s31. During this period, the extraction processing unit 16 of the arithmetic unit 11 sends a recording signal to the camera 17, and the period is to the second recording device 15. The recorded information of is saved. The recorded signals are time x2-0 to time x2-1, time x2-2-time x2-6, time x2-7 to time x2-8, time x2-9 to time x2-13, time x2-14 to time x2. It is sent out during the period from -16, time x2-17 to time x2-18.

When the number of operating units shifts from one to two, recording is temporarily stopped and recording is started again. The corresponding locations are time x2-3, time x2-4, time x2-5, time x2-10, time x2-11, time x2-12, and time x2-15.

Further, when the extraction processing unit 16 of the arithmetic unit 11 transitions from the reference operating number to a state in which the operating number is larger than the standard operating number, in other words, the operating number does not fall below two from the state of two. When the state of the unit is changed, it is decided not to extract the recorded information from the time when the number of operating units reaches 2 to the time when 3 units are operated. The period from the time when the number of operating units reaches 2 to the time when the number of units is changed to 3 and the operation is started is time s2 to time s3, time s10 to time s11, time s12 to time s13, and time s20 in FIG. It is the period shown by ~ time s21 and time s26 ~ time s27, and the recorded information during this period is not extracted.

By the above processing, time y2-0 to time y2-1, time y2-2-time y2-3, time y2-3 to time y2-4, time y2-4 to time y2-5, in FIG. At time y2-6 to time y2-7, time y2-7 to time y2-8, time y2-8 to time y2-9, time y2-10 to time y2-11, time y2-12 to time y2-13 Recording information is recorded in the second recording device for the corresponding period.

FIG. 5 shows that in the third embodiment of the production analyzer 1, the extraction processing unit 16 of the arithmetic unit 11 attaches to the second recording device 15 based on the operation state detected by the operation detectors 10A, 10B, 10C. It is a time chart which showed the process of recording and extracting the recorded information.
Since the processing up to the arithmetic unit 11 is the same as that of the first embodiment, the description thereof will be omitted.

Also in the third embodiment, the standard operating number is two. In this embodiment, the recorded information from the camera 17 is constantly recorded in the second recording device 15. The extraction processing unit 16 maintains the recorded information recorded during the period when the number of operating units is less than the standard operating number and the time immediately before the time when the number of operating units is less than the standard operating number, and is recorded during other periods. The recorded information can be extracted by excluding the information from the recorded information recorded in the second recording device 15.

In this embodiment, the start of the recorded information when the number of operating units is less than the standard operating number is set to a fixed period immediately before the time when the number of operating units is less than two. Therefore, since the recorded information may be required in all time zones, a process is adopted in which all the recorded information is once recorded in the second recording device 15 and then the necessary recorded information is extracted. In the present embodiment, the number of operating units is less than two in FIG. 5: time s0 to time s2, time s5 to time s6, time s7 to time s8, time s9 to time s10, time s15 to time. It is a period indicated by s16, time s17 to time s18, time s19 to time s20, time s23 to time s26, and time s29 to time s31. In the present embodiment, the recorded information is required for a certain period (for example, 5 minutes) immediately before the time when the number of operating units becomes less than two. The extraction start time when extracting the recorded information is time x3-2', time x3-4', time x3-6', time x3-8', time x3-10', time x3-12', time x3. -14', time x3-16'. As a result, time y3-0 to time y3-1, time y3-2'to time y3-3, time y3-4'to time y3-5, time y3-6'to time y3-7 in FIG. , Time y3-8'~ time y3-9, time y3-10'~ time y3-11, time y3-12'~ time y3-13, time y3-14'~ time y3-15, time y3-16' The recording information of the period corresponding to the time y3-17 is recorded in the second recording device.

By analyzing these recorded information, the work efficiency of each worker can be evaluated more efficiently than before.

The production analyzer of the present invention has been described above with reference to an example, but the production analyzer described in the claims includes a production analyzer in which the configuration described in the embodiment is variously modified. For example, the reference operating number is not determined only by the number of equipment and the number of workers, but is determined by the actual arrangement of equipment and the content of required work. Further, the configuration and arrangement of the arithmetic unit and the recording device can be appropriately changed by combining hardware and a program having necessary functions.

1 Production analyzer 2 Computer 10A, 10B, 10C Operation detector 11 Arithmetic unit 12 First recording device 13 Display device 14A, 14B, 14C Operation indicator 15 Second recording device 16 Extraction processing unit 17 Cameras A, B, C Equipment M Worker

Claims (9)

It is a production analyzer that analyzes the process of processing intermediate products one by one by multiple equipment operated by workers.
An operation detector provided in the equipment that detects the operation of a plurality of the equipment, and
An arithmetic unit that determines whether the equipment is in operation or stopped based on the signal of the operation detector and obtains the number of operating units.
A first recording device that records one or both of the operation information and the number of operating units of each of the above equipment together with the time information at regular time intervals.
A display device that displays the number of operating units together with the time information,
Production analyzer consisting of. The first aspect of the production analyzer is characterized by further comprising a camera for photographing the work of the worker and a second recording device for recording the recording information photographed by the camera together with the time information. The production analyzer described. The production analyzer stores in advance the reference operating number, which is a predetermined operating number, and is used.
The production analyzer is characterized by having an extraction processing unit that extracts recorded information by transmitting a recorded signal to the camera when the number of operating units is less than the standard number of operating units. 2. The production analyzer according to 2. The production analyzer stores in advance the reference operating number, which is a predetermined operating number, and is used.
Moreover, the production analyzer has an extraction processing unit that stores recorded information in the second recording device and extracts at least a part of the stored recorded information when the number of operating units is equal to or less than the reference operating number. The production analyzer according to claim 2, wherein the production analyzer is provided. The extraction processing unit of the production analyzer
When the number of operating units becomes equal to or less than the standard operating number, recording of recorded information is started in the second recording device by transmitting a recording signal to the camera, and the operating number is equal to or less than the standard operating number. Recording information is continued for the period of, and when the number of operating units transitions to a state larger than the reference number of operating units, a recording signal for stopping recording is transmitted.
Further, when the number of operating units transitions from the standard operating number to a state larger than the standard operating number, the state shifts from the time when the operating number reaches the standard operating number to a state in which the operating number is larger than the standard operating number. The production analyzer according to claim 4, wherein the recorded information is extracted by excluding the recorded information up to the time. The production analyzer stores in advance the reference operating number, which is a predetermined operating number, and is used.
Moreover, the production analyzer has an extraction processing unit that extracts recorded information for a period in which the number of operating units is less than the standard operating number and a certain period immediately before the time when the number of operating units transitions to less than the standard operating number. The production analyzer according to claim 2. The production analyzer always records the recorded information from the camera in the second recording device.
The extraction processing unit maintains the recorded information recorded during the period when the number of operating units is less than the standard operating number and the time immediately before the time when the operating number is less than the standard operating number, and during other periods. The production analyzer according to claim 6, wherein the recorded information is extracted by excluding the recorded recorded information from the recorded information recorded in the second recording device. The production analyzer according to any one of claims 2 to 7, wherein the second recording device is included in the first recording device. The production analyzer according to any one of claims 1 to 8, wherein the operation detector is a sensor for detecting the lighting of an operation indicator lamp provided in the equipment.

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