JP2019197466A - Work management apparatus, work management program, and work management system - Google Patents

Abstract

To provide a work management apparatus which can suppress mistaken operation by an operator in view of the problem in which if a production process includes an operation of a manufacturing apparatus, assembly of a product, and the like by an operator, the operator needs to have skill of a predetermined level or higher for the work he takes care of in order to maintain quality of the manufactured product, and if an operator having sufficient necessary skill for the work does the work after a long interval, he may unintentionally do different work from a predetermined operation, which may lead to deterioration of the product.SOLUTION: A work management apparatus receives an identification information for use in identifying the operator, acquires work history of the operator corresponding to the identification information, and stops a facility for use in the work if a work period from a previous work date recorded in the work history to the date when the identification information is received is larger than a reference period.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a work management device, a work management program, and a work management system.

  Patent Document 1 discloses a tag having a unique ID carried by an operator when the operator enters an area irradiated with infrared light emitted by an infrared light emitter disposed on an operation panel for operating plant equipment, and an operation panel. Perform transmission and reception with light and radio waves with an authentication controller having a tag ID authentication database provided on the side, determine the unique ID of the tag based on the authentication database, and determine the position ID and tag ID, The operation authority of the operator is authenticated from the unique ID, and the operation range of the operation panel is determined by the control sequencer, and the operation authority of the operation panel can be granted or disabled and the operation within the granted operation authority range is possible In addition, there is disclosed an operation authentication system in plant equipment characterized in that the operation history is recorded.

Japanese Patent Laid-Open No. 2006-111988

  In recent years, in order to improve the quality of products manufactured at production sites such as factories, for example, information on the operation status of equipment at the production site, the arrangement status of workers, inspection data of manufactured products, etc. are collected. So-called “visualization of production process” is being promoted to analyze the production status.

  If the production process includes operations that involve operations of manufacturing equipment or assembly of products by the workers, the workers must be at a predetermined level or higher in order to maintain the quality of the manufactured products. Proficiency level is required.

  Therefore, until now, the administrator has confirmed that the proficiency level of the worker in charge satisfies a predetermined level set for each work, and has started manufacturing the product.

  However, when the proficiency level is confirmed by a person, a worker who does not satisfy the proficiency level required for work may be assigned to manufacture the product due to oversight or misunderstanding. In addition, even if a worker who satisfies the proficiency level required for work is to be performed after a long time, the work will be performed unintentionally, and the quality of the product will deteriorate. It is also possible.

  The present invention provides a work management device, a work management program, and a work management system that can suppress erroneous work by a worker as compared with a case where work is assigned without considering the work interval of the worker. With the goal.

  In order to achieve the above object, the work management device according to claim 1 includes an accepting unit that receives identification information for identifying a worker who performs an operation, and the work corresponding to the identification information received by the accepting unit. When the work interval from the previous work date recorded in the work history to the date on which the reception unit has received the identification information exceeds a predetermined period, the worker's work history is acquired. And a control unit that controls to stop the equipment used for the operation.

  In the invention according to claim 2, the control unit acquires the proficiency level of the worker corresponding to the identification information for the work, and the proficiency level of the worker for the work is high during the predetermined period. Control is performed so as to become longer as the time elapses.

  According to a third aspect of the present invention, the control unit performs control to set the proficiency level higher as the accumulated work time for the work becomes longer.

  According to a fourth aspect of the present invention, the control unit performs control to set the previous work day as a day that is equal to or longer than a predetermined time for the worker.

  According to a fifth aspect of the invention, the control unit performs control to set the predetermined time shorter as the proficiency level of the worker with respect to the work becomes longer.

  In the invention according to claim 6, the reception unit receives temperature information indicating the temperature of the worker, and the control unit acquires the temperature information of the worker and uses the temperature information of the worker. A predetermined temperature is set for each worker, and when the temperature information of the worker exceeds the predetermined temperature, the equipment is stopped.

  According to a seventh aspect of the invention, the control unit performs control to set the predetermined temperature so as to increase as the temperature of the place where the body temperature of the worker is measured increases.

  The invention of the work management program according to claim 8 causes a computer to function as each part of the work management apparatus according to any one of claims 1 to 7.

  The invention of the work management system according to claim 9 comprises: equipment used for work of a worker; and the work management apparatus according to any one of claims 1 to 7, which manages operation of the equipment. Including.

  According to the first, eighth, and ninth aspects of the present invention, there is an effect that erroneous work by the worker can be suppressed as compared with the case where the work is assigned without considering the work interval of the worker.

  According to the second aspect of the present invention, the worker assignment time can be shortened as compared with a case where the uniformly set period and the work interval of the worker are compared.

  According to invention of Claim 3, compared with the case where a proficiency level is set with the working years of a worker, it has the effect that a proficiency level can be set with a sufficient precision.

  According to invention of Claim 4, compared with the case where the day when work was performed irrespective of the worker's work time is set to the last work day, the work interval of the worker can be set with high accuracy. It has the effect of being able to.

  According to the fifth aspect of the present invention, there is an effect that it is possible to shorten the worker assignment time as compared to the case where the predetermined time is uniformly set regardless of the skill level of the worker.

  According to the sixth aspect of the present invention, there is an effect that the physical condition of the worker can be estimated with higher accuracy than when the uniform temperature and the body temperature of the worker are compared.

  According to the seventh aspect of the present invention, it is possible to accurately estimate the physical condition of the worker as compared with the case where the body temperature of the worker is estimated without considering the temperature.

It is a figure which shows the structural example of a work management system. It is a figure which shows an example of the functional block in a work management apparatus. It is a figure which shows an example of a worker's proficiency level information. It is a figure which shows an example of the log | history information of a worker. It is a figure which shows an example of the inspection data of a product. It is a figure which shows the example of a principal part structure of the electric system in a work management apparatus. It is a flowchart which shows an example of the flow of a work management process. It is a flowchart which shows an example of the flow of the work management process in consideration of the worker's body temperature. It is a flowchart which shows an example of the flow of the work management process which considered the inspection condition of an installation. It is a flowchart which shows an example of the flow of the work management process which considered the deterioration information of an installation.

  Hereinafter, the present embodiment will be described with reference to the drawings. In addition, the same code | symbol is provided to the component and process which have the same function through all the drawings, and the overlapping description is abbreviate | omitted.

<First Embodiment>
FIG. 1 is a diagram illustrating a configuration example of a work management system 100 according to the present embodiment. As shown in FIG. 1, the work management system 100 includes a work management apparatus 10, equipment 20 used in a production process of a production line for manufacturing products, and a quality management apparatus 30. The work management apparatus 10, the facility 20, and the quality management apparatus 30 are connected by a communication line 2.

  The work management apparatus 10 receives identification information for identifying a worker who performs work in the production process of the production line by the acquisition apparatus 18. In addition, the work management apparatus 10 can provide various information about the product and the facility 20 such as the operating state of the facility 20, the inspection result of the product manufactured by the facility 20, the traceability of the product manufactured by the facility 20, the operating time of the facility 20 ( Hereinafter, “production information”) is received from the facility 20. Further, the work management apparatus 10 grasps the production status of the product based on the production information, the production of the product in the facility 20 does not stop, and the quality of the product produced in the facility 20 has a predetermined standard quality. The facility 20 is controlled so as not to fall below.

  In addition, the work management apparatus 10 transfers product quality information such as product traceability and product inspection results (hereinafter referred to as “quality information”) to the quality management apparatus 30.

  The work management apparatus 10 uses, for example, a form of edge computing that is installed close to the equipment 20 to the extent that the equipment 20 can be seen. By installing the work management device 10 close to the facility 20, for example, using cloud computing, the work management device 10 is produced in a different building from the building where the facility 20 is installed. The time required from receiving the information to controlling the facility 20 is shortened.

  The facility 20 is a product production facility including, for example, a plurality of facility devices 20-1 to 20-N (N is an integer). Production equipment includes, for example, an assembly device that assembles products, an inspection device that inspects the quality of products, and a transport device that transports parts and products. That is, the facility 20 includes a plurality of facility devices 20-1 to 20-N used in the production process of the production line. The production line includes a plurality of production processes, and the facility 20 is arranged (installed) in at least one production process.

  Before starting the work on the production line using the equipment 20, the worker causes the acquisition device 18 to read and take charge of the ID card storing the worker ID (Identification) for uniquely identifying the worker. Enter the production process. Thereby, the work start time of the worker is acquired. In addition, the worker causes the acquisition device 18 to read the ID card again after finishing the work on the production line where the equipment 20 is arranged. Thereby, the work end time of the worker is acquired. Note that the method for inputting the identification information of the worker is not limited to reading the ID card. For example, the worker is identified by a method of inputting a worker ID by pressing a button on the acquisition device 18 or image recognition using a camera. You may do it.

  The quality management device 30 receives quality information from the work management device 10, analyzes the received quality information, grasps the quality status of products manufactured on the production line using the facility 20, Notify the person in charge of product quality management etc. of the analysis results.

  Note that the communication line 2 may be wired or wireless, and even if it is a dedicated line used only by a specific user, a public line that is used by an unspecified number of users sharing the same line. It may be.

  FIG. 2 is a diagram illustrating an example of functional blocks in the work management apparatus 10. The work management apparatus 10 includes functional units of the communication unit 12 and the control unit 14 and a production information DB 16, and an acquisition device 18 is connected to the control unit 14.

  Usually, “DB” is an abbreviation that means “Database” that manages data in association with a predetermined primary key. However, “DB” in the present embodiment does not indicate various commercial and non-commercial database applications, but represents a storage area for storing data. Needless to say, the work management apparatus 10 may use a database application to manage a storage area for storing data.

  The communication unit 12 receives production information from the facility 20 via the communication line 2. Then, the communication unit 12 notifies (transmits) the production information received from the facility 20 to the control unit 14.

  In addition, the communication unit 12 transmits a control message (control signal) for controlling the facility 20 to the facility 20 via the communication line 2 according to an instruction from the control unit 14, and quality information on a product manufactured by the facility 20 It transmits to the management apparatus 30.

  The acquisition device 18 receives the identification information for identifying the worker and the production process handled by the worker, and notifies the control unit 14 of the identification information. The communication unit 12 and the acquisition device 18 that receive identification information, production information, and the like are an example of a reception unit according to the present embodiment.

  When the control unit 14 receives the worker identification information, the control unit 14 acquires the worker skill level information represented by the identification information and the worker history information of the worker from the production information DB 16.

  Here, the proficiency level information of the worker is information indicating the proficiency level of the worker with respect to work performed in the production process in the production line using the equipment 20, and is stored in advance in the production information DB 16. Since there are a plurality of production processes in manufacturing a product on the production line using the facility 20, the skill level information of the worker is set for each production process.

  FIG. 3 is a diagram illustrating an example of proficiency level information of workers. As shown in FIG. 3, a worker ID, which is an example of worker identification information, and a skill level for each production process are set in the skill level information of the worker. For convenience of explanation, the production process of the production line using the equipment 20 in the present embodiment includes the process A-1, the process A-2, the process A-3, the process B-1, and the process B-2. The number of production steps in the facility 20 is an example, and is not limited to the five steps described above.

  The proficiency level of the worker is classified into, for example, five levels “0” to “4”. The proficiency level “0” indicates that the worker is undergoing training regarding the work of the corresponding production process. When a worker who is undergoing training works in the production process, it is necessary to work with an instructor who has a proficiency level equal to or higher than a predetermined reference level. The proficiency level “0” is set by the control unit 14 for the worker who performs the work in the corresponding production process for the first time.

  A proficiency level of “1” or higher indicates that the worker has completed the training and is permitted to work alone, and as the proficiency level increases, the work in the corresponding production process is performed as prescribed. This means that the performance ability (also called “capacity”) is high. For example, the control unit 14 sets the proficiency level information of the worker so that the proficiency level of the worker becomes higher as the accumulated work time for the work in the corresponding production process becomes longer.

  Needless to say, the level of proficiency of workers is not limited to five levels, and the proficiency level of workers may be subdivided from five levels or integrated into less than five levels. The proficiency level information of the worker is updated as appropriate according to changes in the ability of the worker with respect to the work.

  On the other hand, the worker history information is information that records the work performed by the worker using the equipment 20 in the past, and is stored in the production information DB 16 for each worker.

  FIG. 4 is a diagram illustrating an example of history information of a specific worker, for example, a worker assigned with a worker ID “001”. As shown in FIG. 4, the history information of the worker includes the work date of work, the production process in charge, the work start time, and the work end time. The items included in the worker history information are not limited to the items shown in FIG. 4, and may include other items representing the worker's work status such as the number of products processed during the work period.

  The production information DB 16 stores inspection data for each product manufactured on the production line using the facility 20.

  FIG. 5 is a diagram showing an example of product inspection data. As shown in FIG. 5, the inspection data includes the serial number of the manufactured product and the inspection result. The inspection results were implemented with the types of inspection results (measured values A and B in FIG. 5) showing the measured values of the characteristics of the manufactured product, such as product dimensions and power consumption. The types of inspection results (inspection results 1 to 3 in FIG. 5) indicating the quality of the inspection are included. The items of product inspection data shown in FIG. 5 are merely examples, and the content of the inspection data is not limited.

  In addition, the production information DB 16 stores facility information including the operating time for each facility device constituting the facility 20.

  The control unit 14 controls the operating state of the facility 20 based on the acquired proficiency level information of the worker and the history information of the worker. The control unit 14 controls the operating state of the facility 20 based on other production information and the like in addition to the worker's proficiency level information and the worker's history information. In addition, the specific control method of the operating state of the equipment 20 in the control unit 14 will be described later. The control unit 14 generates a control message for controlling the operating state of the facility 20 and notifies the communication unit 12 of the control message.

  Further, the control unit 14 extracts product inspection data and facility information from the received production information and stores them in the production information DB 16.

  Next, a configuration example of a main part of the electric system in the work management apparatus 10 will be described with reference to FIG. The work management apparatus 10 is configured using a computer 40, for example.

  The computer 40 is used as a CPU (Central Processing Unit) 41 responsible for each functional unit of the work management apparatus 10 shown in FIG. 2, a ROM (Read Only Memory) 42 for storing programs, and a temporary work area for the CPU 41. A random access memory (RAM) 43, a nonvolatile memory 44 in which the production information DB 16 is constructed, and an input / output interface (I / O) 45 are provided. The CPU 41, ROM 42, RAM 43, nonvolatile memory 44, and I / O 45 are connected via a bus 46.

  The nonvolatile memory 44 is an example of a storage device in which stored information is maintained even when power supplied to the nonvolatile memory 44 is interrupted. For example, a semiconductor memory is used, but a hard disk may be used.

  For example, a communication unit 47, an input unit 48, and a display unit 49 are connected to the I / O 45.

  The communication unit 47 is connected to the communication line 2 and includes a communication protocol for transmitting and receiving messages (signals) to and from the facility 20 and the quality control device 30. The communication unit 12 includes a communication unit 47.

  The input unit 48 is an input device that receives an instruction from a user and notifies the CPU 41 of the input unit 48. For example, a button, a touch panel, a keyboard, a mouse, and the like are used.

  The display unit 49 is a display device that displays information processed by the CPU 41 as an image. For example, a liquid crystal display or an organic EL (Electro Luminescence) display is used.

  The unit connected to the I / O 45 of the work management apparatus 10 is not limited to the unit illustrated in FIG. For example, a voice recognition unit that recognizes the voice of the user may be connected. In this case, the work management apparatus 10 may receive a user instruction with a voice and execute a process according to the received instruction.

  Next, the operation of the work management apparatus 10 will be described in detail with reference to FIG.

  FIG. 7 is a flowchart illustrating an example of a flow of work management processing executed by the CPU 41 constituting a part of the control unit 14 when the work management device 10 is activated or when an instruction is received from a user.

  A work management program that prescribes work management processing is stored in advance in, for example, the ROM 42 of the work management apparatus 10. The CPU 41 of the work management apparatus 10 reads a work management program stored in the ROM 42 and executes a work management process.

  It is assumed that the proficiency level information for each worker shown in FIG. 3 and the history information for each worker shown in FIG. In addition, it is assumed that no worker is assigned to each production process constituting the production line using the facility 20, and the facility 20 is stopped.

  In step S <b> 10, the CPU 41 acquires the identification information of the worker who is going to start work from the acquisition device 18 and information on the production process that the worker is in charge of. When the identification information of the worker and the information of the production process in charge are not acquired, the process of step S10 is repeatedly executed, and the acquisition of information by the acquisition device 18 is monitored.

  On the other hand, when the identification information of the worker and the information of the production process handled by the worker are acquired, the process proceeds to step S20.

  In step S <b> 20, the CPU 41 is registered in advance as a person who is involved in the work in the facility 20 (hereinafter referred to as “target worker”) corresponding to (identified by) the identification information acquired in step S <b> 10. It is determined whether it is a registered worker. Specifically, the CPU 41 has the same worker ID as the worker ID included in the acquired identification information in the worker ID of the worker proficiency information stored in the production information DB 16 (nonvolatile memory 44). Is determined, the target worker is determined to be a registered worker.

  Therefore, when the worker ID included in the identification information acquired in step S10 does not exist in the skill level information of the worker, it is determined that the target worker is not a registered worker, and the process proceeds to step S60.

  In step S60, the CPU 41 controls the display unit 49 so as to display a warning corresponding to the determination result that is the reason for shifting the process to step S60. Specifically, when the target worker is not a registered worker, since the target worker has not attended any work training in any production process of the equipment 20, the target worker is assigned to the work of the equipment 20. That is not allowed. Therefore, the CPU 41 displays a warning notifying that a worker different from the registered worker has been assigned to the production process on the display unit 49 and confirms that work on the production line using the equipment 20 is not permitted. A control message to be displayed on a display device (not shown) included in the facility 20 is transmitted to the facility 20 via the communication unit 47. At this time, the CPU 41 may transmit a control message for stopping (not operating) the facility 20 (all the facility devices 20-1 to 20 -N) to the facility 20 via the communication unit 47. In addition, after the process of step S60 is complete | finished, it transfers to step S70 mentioned later.

  On the other hand, when it is determined in step S20 that the target worker is a registered worker, the process proceeds to step S30.

  In step S30, the CPU 41 acquires the proficiency level information of the target worker from the production information DB 16, and whether the proficiency level of the target worker in the production process in charge is equal to or higher than a reference level predetermined for each production process. Determine whether. The reference level predetermined for each production process is stored in advance in the nonvolatile memory 44, for example.

  For example, when the reference level of the process A-1 is “2” and the worker whose worker ID is “001” in FIG. 3 tries to take charge of the process A-1, the process A-1 of the worker is concerned. The proficiency level at “3” is “3”, which is equal to or higher than the reference level, so that the operation of step A-1 is permitted.

  However, for example, when the reference level of the process A-2 is “4” and the worker whose worker ID is “001” in FIG. Since the proficiency level at -2 is "3", the operation of step A-2 is not permitted.

  Therefore, when the proficiency level of the target worker is less than a reference level that is predetermined for each production process, the process proceeds to step S60. In this case, in step S60, the CPU 41 displays a warning on the display unit 49 notifying that a worker whose work proficiency is less than the reference level has been assigned to the production process, and in the corresponding production process, the target worker. A control message to be displayed on a display device (not shown) included in the facility 20 is transmitted to the facility 20 via the communication unit 47. At this time, the CPU 41 may transmit a control message for stopping (not operating) the facility 20 (all the facility devices 20-1 to 20 -N) to the facility 20 via the communication unit 47.

  On the other hand, if it is determined in the determination process of step S30 that the proficiency level of the target worker exceeds the reference level predetermined for the production process scheduled to be assigned, the process proceeds to step S40.

  In step S40, the CPU 41 acquires the history information of the target worker from the production information DB 16, and whether the work interval from the previous work day to the time when the identification information of the target worker is received in step S10 exceeds the reference period. Determine whether.

  Here, the “reference period” is a predetermined period that represents a period in which the level of proficiency of workers begins to deteriorate to the extent that the quality of the manufactured product is affected by the fact that the workers did not engage in the work. It is an example. The reference period is set in advance for each production process (for each work in the production process), and is stored in advance in the nonvolatile memory 44, for example. The reference period may be set in either day unit or time unit, but here, it is assumed that the reference period is set in day unit as an example.

  If a worker whose work interval from the previous work day exceeds the standard period, the product quality may be lower than the standard quality required for the product. It is preferable not to take charge of.

  Therefore, when the work interval from the previous work day exceeds the reference period, the process proceeds to step S60. In this case, in step S60, the CPU 41 displays a warning on the display unit 49 notifying that a worker whose work interval from the previous work day exceeds the reference period has been assigned to the production process, and the corresponding production process. Then, a control message to be displayed on a display device (not shown) included in the facility 20 that the target worker is not permitted to perform work is transmitted to the facility 20 via the communication unit 47. At this time, the CPU 41 constituting a part of the control unit 14 transmits a control message for stopping (not operating) the facility 20 (all the facility devices 20-1 to 20 -N) via the communication unit 47. Send to. Since CPU41 continues transmitting the control message which stops the equipment 20 with respect to the equipment 20, the equipment 20 cannot be operated until the said transmission stops. That is, the production line using the facility 20 cannot physically manufacture the product.

  As a result, even if the proficiency level of the work in the production process that is planned to be in charge is higher than the standard level, the worker who performs the work after a long time so that the work interval from the previous work day exceeds the standard period Work on the production line using 20 cannot be performed. For this reason, it is suppressed in advance that the quality of the product manufactured on the production line using the facility 20 is lower than the reference quality due to erroneous work. In addition, a worker whose work interval from the previous work day exceeds the reference period is allowed to work on the production line using the equipment 20 by working with a leader, for example, and is recorded as a work history. .

  In step S60 described above, a warning is displayed indicating that the worker is not allowed to work on the production line using the equipment 20, but the CPU 41 displays a substitute worker candidate that satisfies the work conditions in the equipment 20 as a display unit. 49 may be displayed.

  For example, when the work interval of the target worker exceeds the reference period and the work on the production line using the facility 20 is not permitted, the CPU 41 refers to the proficiency level information of the worker and the history information of the worker. , Search for a worker who has a proficiency level higher than the standard level set in the production process that the target worker was to be in charge of, and whose work interval from the previous work day is below the standard period, Display on the display unit 49. The user of the work management apparatus 10 may contact the worker displayed on the display unit 49 and assign it to the work of the production process that the target worker was scheduled to take charge of instead of the target worker.

  On the other hand, when it is determined in the determination process in step S40 that the work interval from the previous work day is equal to or shorter than the reference period, the process proceeds to step S50.

  In step S50, the CPU 41 assigns the target worker as a worker engaged in the work of the production process acquired in step S10, and records the work date, the production process engaged, and the start time of the work in the history information of the target worker. .

  In step S <b> 70, the CPU 41 determines whether or not the worker assignment has been completed for each of the production processes. If there is at least one process to which no worker is assigned in each production process, the product cannot be manufactured. Therefore, the process proceeds to step S10 and the identification information of the next worker and the production process in charge are assigned. Get information.

  By repeatedly executing Steps S10 to S70, workers whose proficiency level is equal to or higher than the reference level and whose work interval is within the reference period are assigned to each production process constituting the production line using the equipment 20. Become. Therefore, when it is determined in the determination process of step S70 that the assignment of workers has been completed for each of the production processes, the process proceeds to step S80, and in step S80, the CPU 41 compares the facility 20 with the facility 20. Send a control message to start the operation. Thereby, the installation 20 operates. Thus, the work management process shown in FIG. 7 ends.

  As described above, according to the work management system 100 according to the present embodiment, a worker whose proficiency level is equal to or higher than the reference level and whose work interval is within the reference period is assigned to each production process in the work management apparatus 10. The facility 20 is stopped until it is confirmed.

  In the work management process described above, the work interval from the previous work day is compared with a preset reference period, but the reference period may be changed according to the proficiency level of the worker.

  For example, the higher the proficiency level, the longer the period until the proficiency level is lowered to the extent that the quality of the manufactured product is affected. Therefore, the CPU 41 of the work management apparatus 10 performs control to set the reference period to be longer as the proficiency level of the worker increases. As a result, the possibility of assigning highly skilled workers is improved compared to the case where the uniformly set period and the worker's work interval are compared. it can.

  On the other hand, the lower the proficiency level, the shorter the period until the proficiency level is lowered to the extent that the quality of the manufactured product is affected. Therefore, the CPU 41 of the work management device 10 performs control to set the reference period to be shorter as the proficiency level of the worker becomes lower. As a result, the possibility of assigning a worker with a low level of proficiency is lower than when comparing a uniformly set period and the worker's work interval, thereby further suppressing erroneous work by the worker. Can do.

  Specifically, for example, in the process A-1, when the reference period for the worker with the proficiency level “3” is set to 30 days, the reference period for the worker with the proficiency level “4” is set to 35 days. On the other hand, the reference period for the worker with the proficiency level “2” is set to 25 days, and the reference period for the worker with the proficiency level “1” is set to 20 days.

  In this way, the proficiency level of the worker is affected by the work interval from the previous work day, but the work time on the previous work day by the worker satisfies the work time enough to maintain the ability of the worker. If not, even if the work interval from the previous work day is less than or equal to the reference period, the proficiency level of the worker may be lowered to the extent that the quality of the manufactured product is affected.

  Therefore, when the CPU 41 of the work management device 10 calculates the work interval of the worker based on the worker history information in step S40 of FIG. 7, the work time of the worker is determined in advance (hereinafter referred to as “specified time”). The above days are set as the previous work day. Here, the specified time is set to such a length that the worker's ability is maintained.

  For example, when the specified time is set to 4 hours and the worker whose worker ID is “001” intends to take charge of the process A-1, the history information of the worker shown in FIG. According to this, the previous work day is set to April 2, 2018, which is working for 8 hours, not April 5, 2018, which is working for only one hour.

  A worker with a high level of proficiency tends to maintain work ability in a shorter work time, and a worker with a low proficiency tends to have a longer work time required to maintain the ability. It is done. Therefore, the CPU 41 of the work management apparatus 10 may be set so that the specified time becomes shorter as the worker's proficiency level increases, and the specified time becomes longer as the worker's proficiency level decreases. . As a result, compared with the case where the specified time is set uniformly regardless of the level of proficiency of workers, the possibility that workers with high proficiency levels will be allocated can be improved, so that the time for assigning workers can be shortened. it can. In addition, compared with the case where the specified time is set uniformly regardless of the level of proficiency of workers, the possibility of assigning workers with low proficiency levels is reduced, so that it is possible to further suppress erroneous work by workers. it can.

<Variation 1 of the first embodiment>
The work management apparatus 10 according to the first embodiment operates the facility 20 when a worker whose proficiency level is equal to or higher than a reference level and whose work interval is within the reference period is assigned to each production process.

  However, even if the proficiency level in the proficiency level information of the worker is higher than the reference level, there is a day when the physical condition of the worker is not excellent due to, for example, catching a cold. When the physical condition is not excellent, the work that can be performed as specified in a normal condition may not be performed as specified.

  Therefore, in this modification, the work management apparatus 10 that determines the physical condition of the worker using temperature information indicating the body temperature of the worker and performs product quality management will be described.

  FIG. 8 is a flowchart illustrating an example of a flow of work management processing executed by the CPU 41 when the work management apparatus 10 is activated or when an instruction is received from a user.

  The difference between the flowchart of the work management apparatus shown in FIG. 8 and the flowchart shown in FIG. 7 is that step S25 is added and the other processes are the same. Therefore, the process of step S25 will be described here.

  The acquisition device 18 that reads the worker's ID card at the start and end of the work is provided with, for example, an infrared camera. In step S10 of the work management process shown in FIG. In addition to information on the production process that the worker is in charge of, a temperature image of the worker taken with an infrared camera is acquired.

  In FIG. 8, when it is determined in the determination process in step S20 that the target worker is a registered worker, the process proceeds to step S25.

  In step S25, the CPU 41 estimates the body temperature of the target worker from the acquired temperature image of the target worker, and determines whether the body temperature of the target worker exceeds a predetermined temperature (hereinafter referred to as “reference temperature”). judge. The CPU 41 associates the estimated body temperature with the target worker and records it in the work history of the target worker.

  The reference temperature is a temperature that is estimated to be worse than normal when the body temperature exceeds this temperature, and is set for each worker. Specifically, the reference temperature is set from the past body temperature of the target worker recorded in the work history of the target worker. When the reference temperature is set from the past body temperature of the target worker, the reference temperature is a representative value indicating the normal body temperature of the worker, such as an average value, a median value, or a mode value of the past body temperature of the target worker. It is set by adding a predetermined margin value (for example, 1 ° C.). The set reference temperature is recorded in the work history of the target worker, for example.

  When the body temperature of the target worker exceeds the reference temperature, the process proceeds to step S60. In this case, in step S60, the CPU 41 displays a warning on the display unit 49 notifying that a worker with poor physical condition has been assigned to the production process, and does not allow the target worker to perform work in the corresponding production process. This is transmitted to the facility 20 via the communication unit 47 to display a control message on a display device (not shown) included in the facility 20. At this time, the CPU 41 transmits a control message for stopping (not operating) the facility 20 to the facility 20 via the communication unit 47.

  As a result, even if a registered worker is estimated to have a problem with his / her physical condition, the facility 20 will not operate even if he / she tries to start work, so the quality of the product manufactured by the facility 20 is lower than the standard quality. It is suppressed in advance.

  When the CPU 41 sets the reference temperature, among the past body temperatures recorded in the history information of the target worker, the body temperature exceeding the reference temperature set at the time of estimating each body temperature is set to the normal temperature of the worker. It is preferable not to use for calculating the representative value indicating the body temperature.

  In addition, the body temperature of the worker may change depending on the temperature of the place where the temperature image is taken. For example, the body temperature of the worker tends to increase as the temperature of the place where the temperature image is taken increases. In this case, even if there is no problem in the physical condition of the worker, it is conceivable that the body temperature of the worker is estimated to be higher than usual due to an increase in the air temperature and exceeds the reference temperature.

  Therefore, the CPU 41 estimates the temperature of the place where the temperature image is taken from the acquired temperature image, and increases the margin value as the temperature of the place where the temperature image is taken increases, so that the reference temperature becomes higher. Set to. Further, the CPU 41 sets the reference temperature to be low by reducing the margin value as the temperature of the place where the temperature image is taken becomes low.

<Modification 2 of the first embodiment>
The work management apparatus 10 according to the first embodiment operates the facility 20 when a worker whose proficiency level is equal to or higher than a reference level and whose work interval is within the reference period is assigned to each production process.

  However, the quality of products manufactured on the production line using the equipment 20 is affected not only by the ability of the workers but also by the maintenance status of the equipment 20. For example, an operator's erroneous work may occur due to a defect in the inspection device included in the facility 20.

  Accordingly, in this modification, the work management apparatus 10 that operates the facility 20 after confirming that the inspection (hereinafter referred to as “preliminary inspection”) required to be performed before the facility 20 is operated is performed. Give an explanation.

  FIG. 9 is a flowchart illustrating an example of a flow of work management processing executed by the CPU 41 when the work management device 10 is activated or when an instruction is received from a user.

  The flowchart of the work management apparatus shown in FIG. 9 is different from the flowchart shown in FIG. 7 in that the processes in steps S71 to S74 are added, and the other processes are the same, and here, steps S71 to S74 are performed. The process will be described.

  Note that the inspection items defined as the preliminary inspection are set in advance and stored in, for example, the nonvolatile memory 44. There may be a plurality of the inspection items. In addition, it is assumed that the facility 20 is stopped.

  In FIG. 9, when it is determined in the determination process of step S70 that the worker assignment has been completed for each of the production processes, the process proceeds to step S71.

  In step S <b> 71, the CPU 41 determines whether the inspection result of the inspection item to be performed in the preliminary inspection has been acquired from the facility 20. If the inspection result has not been acquired, the process of step S71 is repeatedly executed, and the inspection result transmitted from the facility 20 is monitored. On the other hand, when the inspection result is acquired, the process proceeds to step S72.

  In step S72, the CPU 41 determines whether or not the inspection result acquired in step S71 is normal. If the inspection result indicates an abnormality, the process proceeds to step S74.

  In step S74, the CPU 41 displays a warning notifying that there is an abnormality in the equipment 20 on the display unit 49, and ends the work management process shown in FIG.

  In other words, the work management apparatus 10 prevents the facility 20 from operating if any abnormality is recognized in the inspection items included in the preliminary inspection.

  On the other hand, if it is determined in step S72 that the inspection result acquired in step S71 is normal, the process proceeds to step S73.

  In step S <b> 73, the CPU 41 determines whether or not the inspection results of all the inspection items defined as the preliminary inspection have been acquired. If there are inspection items for which inspection results have not yet been acquired among inspection items defined as preliminary inspections, the process proceeds to step S71, and inspection results for the remaining inspection items are acquired.

  On the other hand, when the inspection results of all the inspection items defined as the preliminary inspection are acquired, the process proceeds to step S80.

  In this case, since all the inspection items defined as the preliminary inspection are normal, the CPU 41 transmits a control message for starting the operation of the facility 20 to the facility 20 in step S80. Thereby, the installation 20 operates.

  In the present modification, the example has been described in which the facility 20 transmits the inspection result to the work management apparatus 10 regardless of whether the inspection result of the inspection item is normal or abnormal. The inspection result may not be transmitted to the work management apparatus 10. In this case, since the determination process of step S73 shown in FIG. 9 is negative, the facility 20 does not operate.

  Needless to say, the processes in steps S71 to S74 may be added between steps S70 and S80 of the work management process shown in FIG.

<Modification 3 of the first embodiment>
In the work management apparatus 10 according to the second modification of the first embodiment, a preliminary inspection is performed before the facility 20 is operated, and the facility 20 is operated when there is even one inspection item whose inspection result indicates an abnormality. Controlled not to.

  However, even if no abnormality is recognized in the facility 20 at the stage of preliminary inspection of the facility 20, it is also conceivable that an abnormality occurs in the facility 20 during the operation of the facility 20. When an operator continues the work at the facility 20 in which an abnormality is recognized, there is a possibility that it may lead to an operator's erroneous work. In addition, when the facility 20 is stopped during the operation of the facility 20 in order to maintain the facility 20, the production plan of the product is affected.

  Therefore, in this modification, the work management apparatus 10 that notifies the inspection time of the equipment 20 will be described.

  FIG. 10 is a flowchart illustrating an example of a flow of work management processing executed by the CPU 41 when the work management apparatus 10 is activated or when an instruction is received from a user.

  The flowchart of the work management apparatus shown in FIG. 10 is different from the flowchart shown in FIG. 7 in that the processes in steps S75 to S77 are added, and the other processes are the same. Therefore, here, steps S75 to S77 are performed. The process will be described. Note that the facility 20 is stopped.

  In FIG. 10, when it is determined in the determination process in step S70 that the worker assignment has been completed for each of the production processes, the process proceeds to step S75.

  In step S <b> 75, the CPU 41 acquires deterioration information of the equipment 20 from the equipment 20. The deterioration information of the equipment 20 includes information that quantitatively represents the degree of deterioration of the equipment 20 such as the degree of wear of members used in the equipment 20 and the magnitude of vibration of the members. Note that when the equipment 20 is deteriorated, for example, measurement values such as product dimensions and product inspection results may be affected. For example, inspection data of products manufactured by the equipment 20 as shown in FIG. It may be acquired as deterioration information of the facility 20.

  When the deterioration information of the facility 20 is not acquired, the process of step S75 is repeatedly executed to monitor the deterioration information transmitted from the facility 20. On the other hand, when the deterioration information of the facility 20 is acquired, the process proceeds to step S76.

  In step S76, the CPU 41 sets the next inspection time for the equipment 20 from the deterioration information acquired in step S75.

  Specifically, for example, when the deterioration information of the equipment 20 is acquired as the degree of wear of a member used in the equipment 20, the CPU 41 checks the next inspection from the acquired degree of wear of the member and a predetermined allowable wear degree. Set the time. For example, when the deterioration information of the equipment 20 is acquired as product inspection data, the period until the next inspection time becomes shorter as the deviation between the measured value for a specific item and the reference value for the item increases, for example. Set the inspection time as follows.

  In step S77, the CPU 41 displays the next inspection time set in step S76 on the display unit 49, and transmits a control message for displaying the inspection time on a display device (not shown) included in the facility 20 via the communication unit 47. And transmit to the facility 20.

  Each process of steps S75 to S77 may be added between step S70 and step S80 of the work management process shown in FIG. 8, or between step S73 and step S80 of the work management process shown in FIG. May be added to

  Although the present invention has been described using the embodiment, the present invention is not limited to the scope described in the embodiment. Various changes or improvements can be added to the embodiments without departing from the gist of the present invention, and embodiments to which the changes or improvements are added are also included in the technical scope of the present invention. For example, the order of processing may be changed without departing from the gist of the present invention, and the production management DB 16 is stored in an external device (not shown) connected to the communication line 2 instead of the work management device 10. Also good.

  In the present embodiment, as an example, the form in which the work management process in the work management apparatus 10 is realized by software has been described. However, a process equivalent to the flowcharts shown in FIGS. It may be mounted on an integrated circuit and processed by hardware. In this case, the processing speed can be increased compared with the case where the work management processing is realized by software.

  In the above-described embodiment, the work management program is installed in the ROM 42. However, the present invention is not limited to this. The work management program according to the present invention can be provided in a form recorded in a computer-readable storage medium. For example, the work management program according to the present invention may be provided in a form recorded on an optical disc such as a CD (Compact Disc) -ROM or a DVD (Digital Versatile Disc) -ROM. The work management program according to the present invention may be provided in a form recorded in a semiconductor memory such as a USB memory and a flash memory. Furthermore, the work management apparatus 10 may acquire a work management program according to the present invention from an external device (not shown) connected to the communication line 2.

  In the above-described embodiment, the CPU 41 transmits a control message for stopping (not operating) the facility 20 (all the facility devices 20-1 to 20 -N) to the facility 20 via the communication unit 47. Although the embodiment has been described, the present invention is not limited to this.

  For example, only some of the equipment that constitutes the equipment 20 may be stopped. In this case, stop control of the facility 20 by the CPU 41 constituting a part of the control unit 14 can be simplified. Specifically, for example, four production equipments 20-1 to 20-4 are arranged in this order from the upstream to the downstream in the production line, and the most upstream equipment 20-1 and the most downstream equipment 20 are among them. The CPU 41 transmits a control message to be stopped only to -4. In this case, since the upstream production process having the equipment 20-1 cannot manufacture the product, the product cannot be input to the production line. Moreover, since the downstream production process having the equipment 20-4 cannot manufacture the product, the product cannot be discharged from the production line.

2 ... Communication line 10 ... Work management device 12 ... Communication unit 14 ... Control unit 16 ... Production information DB
20 ... Equipment 30 ... Quality control device 40 ... Computer 41 ... CPU
42 ... ROM
43 ... RAM
44 ... Non-volatile memory 47 ... Communication unit 48 ... Input unit 49 ... Display unit 100 ... Work management system

Claims (9)

A reception unit that receives identification information for identifying a worker who performs the work;
The work history of the worker corresponding to the identification information received by the reception unit is acquired, and work from the previous work date recorded in the work history to the date on which the reception unit receives the identification information A control unit that controls to stop the equipment used for the work when the interval exceeds a predetermined period;
Work management device with The control unit acquires the proficiency level of the worker corresponding to the identification information for the work, and sets the predetermined period so that the proficiency level of the worker for the work increases. The work management apparatus according to claim 1, wherein control is performed. The work management apparatus according to claim 2, wherein the control unit performs control to set a proficiency level higher as the accumulated work time for the work of the worker becomes longer. The work management device according to any one of claims 1 to 3, wherein the control unit performs control to set the previous work day as a day that is equal to or longer than a predetermined time for the worker. . The work management apparatus according to claim 4, wherein the control unit performs control to set the predetermined time shorter as the proficiency level of the worker with respect to the work becomes longer. The reception unit receives temperature information indicating the temperature of the worker,
The control unit acquires past temperature information of the worker, sets a predetermined temperature for each worker using the past temperature information, and the temperature information of the worker is determined in advance. The work management apparatus according to any one of claims 1 to 5, wherein when the temperature exceeds, the equipment is stopped. The work management apparatus according to claim 6, wherein the control unit performs control to set the predetermined temperature so as to increase as the temperature of the place where the body temperature of the worker is measured increases.   The work management program for functioning a computer as each part of the work management apparatus of any one of Claims 1-7. Equipment used for workers' work,
The work management apparatus according to any one of claims 1 to 7, which manages the operation of the facility,
Including work management system.