JP2020154722A - Component management system and component management method - Google Patents

Abstract

To provide a component management system capable of properly managing component transportation and improving efficiency.SOLUTION: A component management system 101 includes: a worker terminal 102 operated by a worker 107 on a work line 106; an administrator terminal 104 operated by a warehouse administrator; and a management device 103. The management device 103 receives a request input of items of components and the number of components to each of the work line 106 or the worker 107 from the worker terminal 102. The administrator terminal 104 allows performing the request input and referring to a list of the work line 106 or the worker 107 that has made the request input.SELECTED DRAWING: Figure 1

Description

The present invention relates to a parts management system and a parts management method.

Parts transportation at production sites in the manufacturing industry is roughly divided into two types. The transportation in which the production control side supplies parts to the worker according to the production plan is called Push type transportation, and the transportation carried out when the worker requests the parts to the warehouse according to the consumption status of the parts is performed. It is called Pull type transport. The Pull type transport reflects the demand for parts generated by the progress of the work on the day and executes the request at the discretion of the operator, so that there is an advantage that excess or deficiency of the transport amount of parts is unlikely to occur.

In Patent Document 1, as an example of Pull-type transport, an order specification that specifies a delivery order with a small number of ordered parts among a group of delivery orders in which the order acceptance time and the like are within a predetermined same period and the parts to be delivered are the same. Using the means and the information of the parts to be issued indicated by the specified issue order as a key, the search in the first table is executed to identify the shelves, etc. of the corresponding automatic warehouse, and the issue processing of the bucket from the specified shelf is automatically performed in the automated warehouse. Regarding the delivery instruction means for instructing the control device of the above and the bucket for storing the cell box for storing the corresponding parts in accordance with the instruction for the delivery process, the number of cell boxes stored in the bucket in the first table is the cell corresponding to the number of ordered parts. An inventory / serving management system having a table update means for subtracting only the number of boxes is disclosed.

Japanese Unexamined Patent Publication No. 2009-280334

However, in the inventory / serving management system disclosed in Patent Document 1, since the delivery instruction is controlled in units of cell boxes for storing parts, the unit of the amount of parts replenished for each work line is fixed. Therefore, it was difficult for each worker to prepare the required amount at that time.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a parts management system and a parts management method capable of proper management and efficiency of parts transportation.

In order to solve the above problems, a parts management system according to one aspect of the present invention has a worker terminal operated by a worker on a work line, a manager terminal operated by a warehouse manager, and a management device. The management device accepts the request input of the item of the part and the number of parts for each work line or worker from the worker terminal, and refers to the list of the work line or the worker for which the request input and the request input are made to the manager terminal. Make it possible.

According to the present invention, it is possible to properly manage and improve the efficiency of parts transportation.

It is a figure which shows the outline of the parts management system which concerns on Example 1. FIG. It is a schematic block diagram which shows the parts management system which concerns on Example 1. FIG. It is a flowchart which shows an example of the operation of the parts management system which concerns on Example 1. FIG. It is a flowchart which shows another example of operation of the parts management system which concerns on Example 1. FIG. It is a figure which shows an example of the registration request screen in the parts management system which concerns on Example 1. FIG. It is a figure which shows an example of the registration list screen in the parts management system which concerns on Example 1. FIG. It is a figure which shows the outline of the parts management system which concerns on Example 2. FIG. It is a schematic block diagram which shows the parts management system which concerns on Example 2. It is a flowchart which shows an example of the operation of the parts management system which concerns on Example 2. It is a flowchart which shows another example of the operation of the parts management system which concerns on Example 2. FIG. It is a figure which shows the outline of the parts management system which concerns on Example 3. FIG. It is a schematic block diagram which shows the parts management system which concerns on Example 3. FIG. It is a flowchart which shows an example of the operation of the parts management system which concerns on Example 3. FIG. It is a flowchart which shows other example of the operation of the parts management system which concerns on Example 3. FIG. It is a figure for demonstrating an example of the construction procedure of the required time prediction model in the parts management system which concerns on Example 3. FIG. It is a figure for demonstrating an example of the procedure of the transfer order adjustment in the parts management system which concerns on Example 3. FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be noted that the embodiments described below do not limit the invention according to the claims, and all of the elements and combinations thereof described in the embodiments are essential for the means for solving the invention. Is not always.

Prior to the description of the examples, the terms herein are defined below.

"AGV" is an abbreviation for Automatic Guided Vehicle and means an automatic guided vehicle.

The "parts management system" has a request registration screen that accepts parts request registration from workers and a request list screen that has a request display function for warehouse managers, and links information about parts requests between the warehouse and workers. Means the system to provide. In the examples described later, the parts management system also has a required time prediction model learning function.

The "work management system" means a system in which a worker registers progress each time work is completed. The work management system holds information on the progress of work such as parts ownership information, location information of the workplace, process progress, and production record information.

The "production control system" means a system that holds personnel allocation information and production plan information.

The "warehouse management system" means a system that delivers necessary parts from an automated warehouse or the like in response to a worker's parts request.

The "required time prediction model" means a mathematical model that predicts the time required to consume parts based on input information.

The "parts ownership information" is information on the current number of parts owned by the worker held on the work management system. Every time the work progress is registered in the work management system, the number of parts owned in the parts ownership information is updated.

"Worker" means a person who is actually in charge of assembling a product at a manufacturing site.

In the examples described below, since each function and data are temporarily arranged in each system for the purpose of written explanation, the system configuration does not necessarily have to be the same as the description. In other words, it is premised that each system is integrated or the implementation destination of the function is changed according to the manufacturing site.

In this specification, "information" and "data" are synonymous and are used without particular distinction. In addition, when "information" and "data" are described, there is no limitation on the number of them. Furthermore, the format is not limited. In addition, the data stored and stored in the storage medium in the so-called table format are also referred to as "information" and "data". Based on the above, examples of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a diagram showing an outline of a parts management system according to the first embodiment.

The parts management system 101 of this embodiment has a worker terminal 102, a management device 103, and a manager terminal 104.

The worker terminal 102 is installed for each worker 107 on the work line 106 of the factory 105. Each worker 107 visually recognizes the work screen of the worker terminal 102, and makes various inputs to the worker terminal 102.

The worker 107 specifies the item of the parts and the number of parts via the registration request screen described in detail later, inputs the request of the parts necessary for assembling the product on the work line 106, and requests. Requests that the input parts be transported from the warehouse 108.

As one of the features of the parts management system 101 of this embodiment, the worker 107 can specify the item and the number (quantity) of parts for each worker or each work line 106 and input a request.

Although the management device 103 is installed between the factory 105 and the warehouse 108 in FIG. 1, the installation location is not particularly limited. The management device 103 causes the worker terminal 102 to display the registration request screen, and accepts the registration input from the worker terminal 102. Then, the administrator terminal 104 is displayed with a request list screen, which will be described in detail later, and a request input for each work line 106 or worker 107, and a list of work lines 106 or worker 107 for which the request is input are displayed in this request list. Display on the screen. At this time, the management device 103 accepts the input of the search item from the warehouse manager who operates the administrator terminal 104, and makes it possible to display (reference) a list of the results of searching the request input by this search item.

The manager terminal 104 is installed in the warehouse 108 and is operated by the warehouse manager of the warehouse management system. The warehouse manager browses the request list screen displayed on the manager terminal 104, and releases the parts from the warehouse 108 based on the request input for each work line 106 or each worker 107 displayed on the request list screen. ..

In the parts management system 101, since the worker 107 can input a request at an arbitrary timing, a plurality of request inputs may be registered at the same time. It is assumed that the parts will be transported by AGV.

In the example shown in FIG. 1, three workers 107 and one work line 106 are described as an example, but it is assumed that the number varies depending on the manufacturing site.

FIG. 2 is a schematic configuration diagram showing a parts management system according to the first embodiment.

As described above, the parts management system 101 of this embodiment includes a worker terminal 102, a management device 103, and a manager terminal 104. It is preferable that the worker terminal 102, the management device 103, and the manager terminal 104 are composed of devices capable of various information processing. As an example, these worker terminals 102 and the like are composed of an information processing device such as a computer.

The worker terminal 102, the management device 103, and the manager terminal 104 are configured to be able to communicate with each other by the communication network 109. Since the parts management system 101 is often installed in one office, the communication network 109 does not have to be a so-called WAN (Wide Area Network), but is composed of a so-called LAN (Local Area Network) or the like. Of course, by using the WAN as the communication network 109, the management device 103, the worker terminal 102, and the manager terminal 104 may be arranged at distant bases.

The management device 103 has a storage unit 110, a control unit 120, and a communication unit 130.

The storage unit 110 stores data and programs. The storage unit 110 is composed of, for example, a magnetic storage medium such as an HDD (Hard Disk Drive) and a semiconductor storage medium such as a RAM (Random Access Memory), a ROM (Read Only Memory), and an SSD (Solid State Drive). Further, a combination of an optical disk such as a DVD (Digital Versatile Disk) and an optical disk drive is also used as the storage unit 110. In addition, a known storage medium such as a magnetic tape medium is also used as the storage unit 110.

The storage unit 110 stores a program (not shown) such as firmware. Further, the request history information 111 is stored in the storage unit 110. The details of the request history information 111 will be described later.

The control unit 120 is composed of arithmetic elements such as a CPU (Central Processing Unit) and an FPGA (Field-Programmable Gate Array) capable of performing various types of information processing. When the power of the management device 103 is turned on, the control unit 120 reads and executes the firmware and the like stored in the storage unit 110, controls the operation of the entire management device 103, and functions shown in each function unit described later. To execute.

The control unit 120 includes a worker terminal display control unit 121, a request input unit 122, an administrator terminal display control unit 123, and a search input unit 124.

The worker terminal display control unit 121 generates a display control signal for displaying the request input screen on the worker terminal 102, and sends it to the worker terminal 102 via the communication unit 130.

The request input unit 122 receives from the worker terminal 102 a request input regarding the item and the number of parts for each work line 106 or each worker 107, which is input by the worker 107 by operating the worker terminal 102. .. The request input received by the request input unit 122 is temporarily stored in the storage unit 110.

The administrator terminal display control unit 123 searches for request input based on the search key input by the warehouse manager by the search input unit 124 described later. Then, the administrator terminal display control unit 123 generates a display control signal for displaying the request list screen in a format that matches the search condition on the administrator terminal 104, and causes the administrator terminal 104 via the communication unit 130. Send out.

The search input unit 124 accepts the input of the search key (search condition) for the request list screen, which is input by the warehouse manager by operating the manager terminal 104, from the manager terminal 104. The search key received by the search input unit 124 is temporarily stored in the storage unit 110.

The communication unit 130 transmits / receives information (data) between the worker terminal 102 and the administrator terminal 104. There are no particular restrictions on the protocol or the like used by the communication unit 130 when transmitting and receiving information.

The detailed configuration and operation of each function realization unit included in the control unit 120 will be described in detail later.

The worker terminal 102 and the administrator terminal 104 have substantially the same configuration. That is, the worker terminal 102 and the manager terminal 104 have input units 140 and 150, display units 141 and 151, and communication units 142 and 152, respectively.

The input units 140 and 150 have, for example, a mouse, a keyboard, a touch panel, and the like, and accept operation inputs from the worker 107 or the warehouse manager. The display units 141 and 151 have, for example, a liquid crystal display and display a display screen on the display surface of the display units 141 and 151 based on the display control signal transmitted from the management device 103. The communication units 142 and 152 transmit and receive information between the worker terminal 102, the management device 103, and the manager terminal 104.

3 and 4 are flowcharts showing the operation of the parts management system 101 according to the first embodiment.

First, in the initial component request shown in FIG. 3, the worker 107 starts up the component management system 101 according to the consumption status of the component (S100). When the parts management system 101 starts up, the worker terminal display control unit 121 of the control unit 120 of the management device 103 generates a display control signal for displaying the request registration screen, and sends this display control signal to the worker terminal 102. (S101). Details of the request registration screen will be described later.

With the request registration screen displayed on the display unit 141 of the worker terminal 102, each worker 107 inputs the item and the quantity of parts for which transportation is requested for each work line 106 or each worker 107. Input by 140 and execute request input at an arbitrary timing (S102). The request input unit 122 of the control unit 120 of the management device 103 receives the request input transmitted from the worker terminal 102, temporarily stores it in the storage unit 110, and also records it in the request history information 111 of the storage unit 110. (S103).

Next, the administrator terminal display control unit 123 of the control unit 120 of the management device 103 generates a display control signal for displaying the request list screen on the administrator terminal 104, and transmits this display control signal to the administrator terminal 104. Send out. The administrator terminal 104 displays the request list screen on the display unit 151. The details of the request list screen will be described later.

With the request list screen displayed, the warehouse manager inputs a search key on the request list screen (S104). The administrator terminal display control unit 123 generates a list of request inputs based on the search key input from the administrator terminal 104, updates the display control signal, and sends it to the administrator terminal 104. The administrator terminal 104 updates the request list screen based on the display control signal transmitted from the management device 103 (S105).

The warehouse manager executes the warehousing work of the parts from the warehouse 108 based on the request input displayed in the list format on the request list screen, and transports the requested parts by means such as AGV (S106). The worker 107 receives the transported parts (S107).

Next, at the time of re-request due to the demand for parts again shown in FIG. 4, when the worker terminal display control unit 121 of the control unit 120 of the management device 103 generates a display control signal for displaying the request registration screen. In addition, the request history information 111 of the storage unit 110 is referred to. Then, the item of the parts for which transportation is requested and the quantity of the parts, which are the request inputs input by the worker 107 in the initial parts request, are displayed on the registration request screen 200 (S108).

The worker 107 browses the registration request screen 200, inputs the request without modifying the request input displayed on the registration request screen 200 as it is, and if appropriate modification is required, the worker terminal 102 The request is input after making corrections via the input unit 140 (S102). After that, the operations of steps S103 to S107 already described are executed.

FIG. 5 is a diagram showing an example of a registration request screen in the parts management system 101 according to the first embodiment. As described above, the registration request screen is a screen for accepting the component request input from the worker 107.

In the upper part of the registration request screen 200, a field 201 for inputting the item code, the item name (item), and the required replenishment lot number (quantity) of the parts to be requested is provided. In addition, it is assumed that necessary items will be customized for each manufacturing site.

The input line of the field 201 is added by the new line addition button 202. Then, when the request registration button 203 is pressed after the item in the field 201 is input, the management device 103 executes the request input registration process. The registered request is displayed in the registration content section 204 at the bottom of the registration request screen 200. In addition to the information of the request input for registration, the registration content unit 204 displays the component request status from request processing to completion of transportation.

FIG. 6 is a diagram showing an example of a registration list screen in the parts management system 101 according to the first embodiment. As described above, the request list screen 210 is a screen for the warehouse manager to confirm the component request input from the worker 107.

In the upper part of the request list screen 210, a field 211 for inputting conditions for searching for a request is provided. It is expected that the search condition items will differ depending on the manufacturing site. Then, when the search button 212 is pressed after the search condition (search key) is entered in the field 211, the management device 103 searches for the request input sorted or extracted by the search key.

In the lower part of the request list screen 210, a column 213 is provided in which the request inputs searched by the management device 103 executing the registration process are displayed in a list. In the column 213, the work line 106 or the worker 107 for which the request is input is displayed as the request source name, and the item name and the number of request replenishment lots related to the request input are displayed. The warehouse manager browses the request list screen 210, and executes delivery and transportation processing for each request according to the request input from the worker 107.

According to the present embodiment configured as described above, the management device 103 receives the request input of the item of the part and the number of parts for each work line 106 or the worker 107 from the worker terminal 102, and causes the manager terminal 104 to input the request. , Request input and a list of work lines 106 or worker 107 to which the request is input can be referred to.

Therefore, according to the present embodiment, it is possible to properly manage and improve the efficiency of parts transportation.

That is, according to this embodiment, by inputting a request for each work line 106 or for each worker 107, it is possible to transfer parts that reflect individual work efficiency and progress, and the amount of parts during transportation becomes excessive. Shortages are less likely to occur. Contributes to reducing the operating load of automated guided vehicles due to unnecessary transportation. In addition, inventory management will be prevented from becoming complicated due to excess or deficiency of parts in the workplace, production will be prevented from being stopped due to exhaustion of parts during work, and the operating rate will be improved.

Further, the parts transport based on the request input in the first embodiment is a pull type transport carried out according to the parts consumption status of the worker 107, and the parts type and quantity can be arbitrarily selected in consideration of the work status of each worker 107. It is possible to input at the timing of and request input. As a result, it is possible to solve the problem of excess or deficiency of the number of parts that occurs in the transportation with a uniform number of replenishment. Further, by storing the required parts for each work in the request history information 111, the labor of checking the work is reduced and the productivity is improved.

FIG. 7 is a diagram showing an outline of the parts management system 101 according to the second embodiment. The basic configuration of the parts management system 101 of the second embodiment and the third embodiment described later is basically the same as the basic configuration of the parts management system 101 of the first embodiment. Therefore, the same components are designated by the same reference numerals to simplify the description.

One of the features of the parts management system 101 of this embodiment is that the management device 103 sets a threshold value for the number of remaining parts for each worker 107, and when the number of remaining parts falls below the threshold value, the management device 103 automatically inputs a request. Generate.

FIG. 8 is a schematic configuration diagram showing the parts management system 101 according to the second embodiment.

In the parts management system 101 of the present embodiment shown in FIG. 8, the control unit 120 of the management device 103 has a threshold value setting unit 125. The threshold value setting unit 125 sets a threshold value as a reference when automatically generating the request input, based on the number of remaining parts of the worker 107 when the request input is received at the time of the initial request from the worker 107. Further, the threshold information 112 is stored in the storage unit 110 of the management device 103.

The management device 103 is configured to be able to communicate with the work management system 301. The work management system 301 has the part ownership information 302.

9 and 10 are flowcharts showing the operation of the parts management system 101 according to the second embodiment.

In the initial component request shown in FIG. 9, the component management system 101 performs the same operation as steps S100 to S102 in the above-described first embodiment.

The request input unit 122 of the control unit 120 of the management device 103 receives the request input transmitted from the worker terminal 102, temporarily stores it in the storage unit 110, and also records it in the request history information 111 of the storage unit 110. .. Further, the request input unit 122 acquires the number of remaining parts of the worker 107 who has input the request at the time when the request input from the worker 107 is received from the part ownership information 302 of the work management system 301, and requests this. Record in the history information 111 (S201).

Next, the threshold value setting unit 125 of the control unit 120 sets the number of remaining parts acquired in step S201 to a threshold value which is a reference value when automatically generating a request input at the time of re-request, and the storage unit 110 It is stored in the threshold information 112 (S202). The threshold value can also be set manually.

After that, the operations of steps S104 to S107 already described in the first embodiment are executed.

The work management system 301 has parts ownership information 302, which is information on the current number of parts owned by the worker. Then, each time the worker 107 performs the assembly work (step S203) and the worker 107 registers the work progress in the work management system 301 at the time of the re-request due to the demand for the parts again shown in FIG. 10, the parts ownership information The number of parts owned for each worker 107 of 302 is updated.

The threshold value setting unit 125 of the control unit 120 of the management device 103 refers to the threshold value information 112 of the storage unit 110 and the component ownership information 302 of the work management system 301, and determines the magnitude relationship between the number of remaining parts for each worker 107 and the threshold value. Determine (step S204).

Then, when the threshold value setting unit 125 determines that the number of remaining parts has fallen below the threshold value (YES in step S204), the threshold value setting unit 125 refers to the request history information 111 and is the same as the item of the parts and the number of parts which are the previous request input contents. The request input is automatically generated, and the request list screen 210 based on this request input is displayed on the administrator terminal 104 (S205). After that, the operations of steps S106 and S107 of the first embodiment are executed.

Therefore, according to the present embodiment, it is possible to properly manage and improve the efficiency of parts transportation as in the above-described first embodiment.

Further, according to this embodiment, by utilizing the number of remaining parts at the time of past request input and the past request input, it is possible to suppress the input error of the request input at the time of the second and subsequent re-requests, and further the confirmation work. This can save labor, thereby reducing the load on the worker 107 and contributing to the improvement of productivity.

In this embodiment, when the threshold setting unit 125 automatically generates the request input when the number of remaining parts falls below the threshold value, the number of remaining parts falls below the threshold value at the worker terminal 102 of the worker 107. A screen for notifying may be displayed. Further, an approval button may be provided on the notification screen, and when the worker 107 presses the approval button, a request input may be automatically generated.

FIG. 11 is a diagram showing an outline of the parts management system 101 according to the third embodiment.

As one of the features of the parts management system 101 of this embodiment, the management device 103 constructs a required time prediction model, and based on this required time prediction model and the production record information, parts possession information, and production plan information of the worker 107. Therefore, the item of the parts and the number of parts that are predicted to be insufficient due to the work of the worker 107 are calculated, and the worker 107 is notified. The worker 107 inputs a request based on this notification. Further, the time when a certain part is exhausted due to the work of the worker 107 is calculated, the order of transporting the parts to the worker 107 is sorted based on the exhaustion time, and the request list screen 210 is displayed on the administrator terminal 104. Display it.

FIG. 12 is a schematic configuration diagram showing the parts management system 101 according to the third embodiment.

In the parts management system 101 of the present embodiment shown in FIG. 12, the control unit 120 of the management device 103 includes a required time prediction model construction unit 126, a shortage prediction unit 127, a depletion time calculation unit 128, and an arrival time calculation unit 129.

The required time prediction model construction unit 126 constructs a required time prediction model 113 that predicts the required time required for each worker 107 to perform the work based on the production record information 303 possessed by the work management system 301. The required time prediction model construction unit 126 stores the constructed required time prediction model 113 in the storage unit 110.

The shortage prediction unit 127 is based on the required time prediction model 113 and the production plan information 402 of the production management system 401, and the shortage prediction unit 127 is a part item and a part that is predicted to be shortage in each worker 107 at a certain point in the future. Calculate the number. The item of parts and the number of parts calculated by the shortage prediction unit 127 are temporarily stored in the storage unit 110.

The depletion time calculation unit 128 calculates the time when the worker 107 predicts that the parts will be depleted based on the required time prediction model 113 and the production plan information 402. The component depletion time calculated by the depletion time calculation unit 128 is temporarily stored in the storage unit 110.

The arrival time calculation unit 129 calculates the time when the AGV arrives at the worker 107 who has received the request input based on the work place position information 304.

The required time prediction model 113 is stored in the storage unit 110 of the management device 103.

The management device 103 is configured to be able to communicate with the work management system 301 and the production management system 401.

The work management system 301 has parts ownership information 302, production record information 303, and workplace position information 304. The production record information 303 is information on the product production record for each work line 106 or each worker 107 at that time, and is updated sequentially. The work place position information 304 is information for specifying the position of the work place of the worker 107 in the factory 105.

The production management system 401 has production plan information 402. The production plan information 402 is information on a production plan such as the number of products produced on a daily basis.

13 and 14 are flowcharts showing the operation of the parts management system 101 according to the third embodiment.

First, the required time prediction model construction unit 126 of the control unit 120 of the management device 103 refers to the production record information 303, learns the data by using a statistical method or a machine learning method, and obtains the required time prediction model 113. Build (S300).

The frequency of execution of step S301 is arbitrary, and is set to such a frequency that a large deviation from the actual time required for work does not occur. The detailed procedure for constructing the required time prediction model 113 by the required time prediction model building unit 126 in step S300 will be described later.

Next, the shortage prediction unit 127 of the control unit 120 is based on the required time prediction model 113 constructed in step S300, the part ownership information 302, the production record information 303, and the production plan information 402, and the worker 107 at a certain point in the future. The item of parts and the number of parts for which a shortage is predicted are calculated for each (S301).

The frequency of execution of step S301 is also arbitrary, and as an example, the component depletion time is calculated at a predetermined timing or the depletion time calculation unit 128 is performed at a predetermined timing, and the component depletion time is executed at a predetermined time. To.

Next, the shortage prediction unit 127 notifies the worker terminal 102 of the worker 107, who is predicted to be short of parts, of the item of the parts predicted to be depleted and the number of parts predicted by the shortage prediction unit 127 (S302). ).

Based on the notification from the management device 103, the worker 107 inputs the item and the quantity of parts for which transportation is requested for each work line 106 or each worker 107 by the input unit 140, and inputs the request at an arbitrary timing. Is executed (S303). The request input unit 122 of the control unit 120 of the management device 103 receives the request input transmitted from the worker terminal 102, temporarily stores it in the storage unit 110, and also records it in the request history information 111 of the storage unit 110. .. As in the second embodiment, the management device 103 may automatically generate the request input without notifying the management device 103.

Next, the depletion time calculation unit 128 calculates the time at which the worker 107 predicts that the parts will be depleted based on the required time prediction model 113 and the production plan information 402 (S304). Then, the administrator terminal display control unit 123 first generates a display control signal for displaying the request list screen 210 so that the request inputs are displayed in the order received by the request input unit 122 (S305).

Next, the arrival time calculation unit 129 calculates the time when the AGV arrives at the worker 107 who has received the request input based on the work place position information 304 (S306).

Next, the administrator terminal display control unit 123 determines the context of the AGV arrival time calculated by the arrival time calculation unit 129 and the component depletion time calculated by the depletion time calculation unit 128 (S307). If it is determined that the AGV arrival time is earlier than the component depletion time (YES in S307), the flowchart proceeds to step S308. On the other hand, if the administrator terminal display control unit 123 determines that the AGV arrival time is later than the component depletion time (NO in S307), the administrator terminal display control unit 123 changes the display order of the request list screen 210 of the administrator terminal 104. Change and return to S306.

Then, the control unit 120 automatically generates a request input and sends it to the administrator terminal 104 (S308). After that, the operations of S106 and S107 of the first embodiment are executed.

FIG. 15 is a diagram for explaining an example of a procedure for constructing the required time prediction model 113 in the parts management system 101 according to the third embodiment.

The production record information 303 of the work management system 301 has information on the time required for each work, work content information such as the number of parts and the presence / absence of a specific work, and worker information such as the presence / absence of experience and the number of years of experience. The production record information 303 shown in FIG. 15 is generated in units of work.

The required time prediction model construction unit 126 constructs the required time prediction model 113 from a statistical method, a machine learning method, or the like, using the required time as an objective variable and worker information and work content information as explanatory variables. Since the required time prediction model 113 can obtain the predicted value of the required time by inputting the work content and the worker information to be performed, the work required time can be obtained by combining with the production plan and the work schedule information. And the pace of parts consumption can be predicted.

FIG. 16 is a diagram for explaining an example of a procedure for adjusting the transfer order in the parts management system 101 according to the third embodiment.

The depletion time calculation unit 128 calculates the time until the parts owned by the worker 107 are consumed based on the required time prediction model 113, the parts possession information 302, and the production plan information 402, and predicts the parts depletion time. ..

The administrator terminal display control unit 123 displays a request list screen 210 in which request inputs are displayed in the order in which request inputs are received from the worker terminal 102 (middle of FIG. 16). The arrival time calculation unit 129 calculates the estimated time when the AGV arrives at the worker 107 based on the work place position information 304 for each request input.

The administrator terminal display control unit 123 compares the parts depletion time with the AGV arrival time, and if the AGV arrival time is later than the parts depletion time, the transport order is changed (lower part of FIG. 16).

Therefore, according to the present embodiment, it is possible to properly manage and improve the efficiency of parts transportation as in the above-described first embodiment.

Further, in this embodiment, the production record information 303 is newly added as input information, the time required for future parts consumption is predicted for each worker by a statistical method or a machine learning method, and the requirements are further aggregated into a prediction model. There is a feature that the transport order is also controlled by using. As a result of improving the accuracy by reflecting the forecast in the order of delivery and transportation, it is possible to prevent excess or deficiency in inventory and reduce transportation loss. As a result, it is expected that the problems of parts consumption forecast and transport order control will be improved.

In the parts transport technology, there is known a technique for calculating a margin time until parts transport based on information on a consumption status of parts and a production plan (see, for example, Japanese Patent Application Laid-Open No. 2016-37352). However, with this technology, only the current parts consumption status is used as the input for judgment, and the tendency of parts consumption cannot be predicted. Therefore, if a shortage of another part occurs immediately after the transfer of a specific part, re-transportation is required, which causes waste. It also proposes to control the shipping order from the warehouse based on the parts consumption status, but does not mention the transportation order after shipping. When using an automated guided vehicle at a manufacturing site, the arrival time varies greatly depending on the order, so the delivery order may not always be the optimum transport order.

In this embodiment, in order to improve the problem of excess or deficiency of the number of parts, the request input is prioritized and the transport order is changed. On the other hand, when the method of the second embodiment is adopted, the parts management system 101 automatically proposes the threshold setting change to the worker 107 based on the above-mentioned prediction of the parts depletion time so as to suppress the depletion of parts. You may. As a result, the problem of excess or deficiency of the number of parts can be appropriately improved by automating the request input of parts at an appropriate timing.

The present invention is not limited to the above-described examples, and includes various modifications. For example, the above-described embodiment has been described in detail in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to those having all the described configurations. Further, it is possible to replace a part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. Further, it is possible to add / delete / replace a part of the configuration of each embodiment with another configuration.

Further, each of the above configurations, functions, processing units, processing means and the like may be realized by hardware by designing a part or all of them by, for example, an integrated circuit. Further, each of the above configurations, functions, and the like may be realized by software by the processor interpreting and executing a program that realizes each function. Information such as programs, tables, and files that realize each function can be placed in a memory, a recording device such as a hard disk or SSD, or a recording medium such as an IC card, SD card, or DVD.

In addition, control lines and information lines are shown as necessary for explanation, and not all control lines and information lines are necessarily shown in the product. In practice, it can be considered that almost all configurations are interconnected.

101 ... Parts management system 102 ... Worker terminal 103 ... Management device 104 ... Administrator terminal 105 ... Factory 106 ... Work line 107 ... Worker 108 ... Warehouse 110 ... Storage unit 111 ... Request history information 112 ... Threshold information 113 ... Time required Prediction model 120 ... Control unit 121 ... Worker terminal display control unit 122 ... Request input unit 123 ... Administrator terminal display control unit 124 ... Search input unit 125 ... Threshold setting unit 126 ... Required time prediction model construction unit 127 ... Insufficiency prediction unit 128 ... Depletion time calculation unit 129 ... Arrival time calculation unit 200 ... Registration request screen 210 ... Request list screen 301 ... Work management system 302 ... Parts ownership information 303 ... Production record information 304 ... Workplace location information 401 ... Production management system 402 ... Production Planning information

Claims (10)

A parts management system having a worker terminal operated by a worker on a work line, a manager terminal operated by a warehouse manager, and a management device.
The management device is
Accepting the request input of the item of the part and the number of the part for each of the work line or the worker from the worker terminal,
A parts management system characterized in that the manager terminal can refer to the request input and the work line to which the request input has been made or a list of the workers. The management device is
Holds the history information of the request input and the possession number information of the parts for the work line or the worker.
A threshold value for the number of the parts can be set based on the history information.
The parts management system according to claim 1, wherein when the possessed number information falls below the threshold value, the request input of the item of the parts and the number of the parts in the history information is generated. The parts management system according to claim 2, wherein the management device notifies the worker terminal when the possessed number information falls below the threshold value. The management device is characterized in that, after notifying the worker terminal, after accepting the approval input from the worker terminal, the management device generates the request input of the item of the part and the number of the parts in the history information. The parts management system according to claim 3. The management device is
Holds production record information including the number of owned parts information for each worker, the time required for each work performed on the work line, and the used quantity of the parts for each work.
Predict the time required for the work based on the production record information,
Based on the predicted time required for the work, the production record information, and the number of possessed information, the item of the part and the number of the parts that are predicted to be insufficient in the future work are calculated and sent to the worker terminal. The parts management system according to claim 1, wherein the notification is provided. The parts management system according to claim 5, wherein the management device receives the request input from the worker terminal after notifying the worker terminal. The management device is
Based on the predicted time required for the work and the production plan information of the worker or the work line, the depletion time of the parts is predicted.
Based on the predicted depletion time of the part and the position information of the worker or the work line, the time when the part arrives at the worker or the work line from the warehouse is predicted.
The parts management system according to claim 5, wherein the order of referring to the list of the request inputs to the administrator terminal is changed based on the arrival time and the exhaustion time of the parts. The management device is
A request input unit that receives a request input of a part item and the number of parts for the work line or the worker from the worker terminal, and
It is characterized by having an administrator terminal display control unit that transmits a display control signal for displaying the request input and the work line or a list of the workers to which the request input has been made on the administrator terminal. The parts management system according to claim 1. A parts management system having a worker terminal operated by a worker on a work line, a manager terminal operated by a warehouse manager, and a management device.
The management device is
It holds information on the number of parts owned by each worker, time required for each work performed on the work line, and production record information including the quantity of the parts used for each work.
Predict the time required for the work based on the production record information,
Based on the predicted time required for the work, the production record information, and the number of possessed information, the item of the part and the number of the parts that are predicted to be insufficient in the future work are calculated and sent to the worker terminal. A parts management system characterized by notifying. It is a parts management method executed by a parts management system having a worker terminal operated by a worker on a work line, a manager terminal operated by a warehouse manager, and a management device.
Accepting the request input of the item of the part and the number of the part for each of the work line or the worker from the worker terminal,
A parts management method, characterized in that the manager terminal can refer to the request input and the work line or a list of the workers to which the request input has been made.

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