JP5943173B2 - Luggage transport vehicle work flow screen display system and screen display method - Google Patents

Description

  The present invention relates to a load carrier vehicle work flow line image display system, a load carrier vehicle work flow line image display device used therefor, and a load carrier vehicle work flow line screen display method.

  In physical distribution work, a plurality of products must be picked for one purchase order at the time of shipping work, which increases the work. In order to improve the efficiency of picking work, the number of forklifts and other luggage transport vehicles has been increased and the number of workers has been increased. Etc.) and labor costs increased. The cost reduction of the picking work that occupies most of the shipping work is an issue.

  In recent years, the environment surrounding the manufacturing industry has changed from the “small-lot mass production” to the “multi-variety small-volume production” era, and the costs of manufacturing operations to logistics operations have increased. Since the number of types of products in manufacturing operations has increased, the amount of work for product design and manufacturing preparation has increased by the number of types of products, which has increased costs.

  Patent Document 1 describes a warehouse management system that makes it possible to monitor changes in the position of a forklift over time. A forklift reader is installed in the forklift, and information on shelf IC tags and fixed IC tags is sent to the RFID system. It is described that it is read by communication.

JP 2007-246250 A

  In order to reduce the operating cost and labor cost of the luggage transport vehicle in the picking work, first, in order to grasp the entire state of the current picking work, the work flow line is quantified and visualized (hereinafter also referred to as visualization). It is necessary to visualize the state of work flow.

  Patent Document 1 describes monitoring the position of a forklift, but does not describe visualizing the state of the work flow line by quantifying and visualizing the work flow line.

  The present invention has been made in view of the above points, and an object of the present invention is to visualize and visualize the state of a work flow line by quantifying and visualizing a load transport vehicle work flow line in picking work.

  The present invention is characterized by generating display information for displaying an operation line image of a load carrier vehicle along an RFID tag installation location and a movement route in a factory site on the screen, and the display information is digitized and visualized. And visualized.

The present invention is a luggage transport vehicle work flow screen display system for displaying work flow information of a plurality of load transport vehicles traveling in a factory on a screen of a screen display device.
An RFID tag installed in a rack of a warehouse built along a traveling path on which a luggage carrier travels,
Mounted on a forklift is a load carrying vehicle, the RFID receiving reader communicates with RFID tags, receives the RFID tag information,
It consists of a screen display device that receives the received RFID tag information via a communication line and displays it on the screen as luggage transport vehicle work flow line information,
The screen display device comprises a database, input means, arithmetic processing means, and screen display means,
Factory site information including a travel path on which the forklift travels, a rack of a warehouse built along the travel path, and an ID and position information of an RFID tag installed in the rack, and a forklift ID ID information indicating is stored,
By the input means, load-carrying vehicle information and RFID tag information is input,
By the processing unit, the forklift is calculated the traffic volume of a forklift from the data running between the RFID tag based on the load-carrying vehicle information and RFID tag information,
The work flow image of the load carrier vehicle displays the RFID tag installation location, the rack with the RFID tag installation location and the movement route on the screen, and the calculated forklift travel frequency is the thickness of the line of the travel route. The frequency of forklifts that stopped at the rack where each RFID tag was installed and the time during which the forklift stopped, and the calculated running frequency were imaged. A region where the driving frequency is concentrated is formed as a circle image,
By the screen display means, the formed load transport vehicle work flow line image is displayed on the screen, and the picking work status of the forklift is displayed with the thickness of the line of the travel route and the size of the circle image. Provided is a load transport vehicle work flow screen display system.

The present invention, in the above-described load-carrying vehicle work flow line screen display system, by the processing means, the load carrying vehicle work flow line image, load carrying characterized that you are generated for a plurality of forklift A vehicle work flow screen display system is provided.

According to the present invention, in the above-described luggage transport vehicle work flow screen display system, the load transport vehicle work flow line image displays the time when the forklift stopped at a position corresponding to each RFID tag installation location. The present invention provides a cargo transport vehicle work flow screen display system characterized by including:

The present invention relates to the above-described luggage transport vehicle work flow screen display system, wherein the load transport vehicle work flow line image includes a stop frequency and a stoppage time of a forklift that has stopped at a rack where each RFID tag is installed, and Provided is a luggage transport vehicle work flow line screen display system characterized by including numerical data calculated with respect to a calculated traveling frequency .

The present invention is a luggage transport vehicle work flow screen display system for displaying work flow information of a forklift that is a plurality of load transport vehicles traveling in a factory on the screen of a screen display device.
An RFID tag installed in a rack of a warehouse built along a traveling path on which a forklift travels,
Mounted on a forklift, and the RFID reception reader communicates with RFID tags, receives the RFID tag information,
It consists of a screen display device that receives the received RFID tag information via a communication line and displays it on the screen as luggage transport vehicle work flow line information,
The screen display device comprises a database, input means, arithmetic processing means, and screen display means,
Factory site information including a travel path on which the forklift travels, a rack of a warehouse built along the travel path, and an ID and position information of an RFID tag installed in the rack , and a forklift ID ID information indicating is stored,
By the input means, load-carrying vehicle information and RFID tag information is input,
By the processing unit, the forklift is calculated the traffic volume of a forklift from the data running between the RFID tag based on the load-carrying vehicle information and RFID tag information,
The work flow image of the luggage carrier vehicle displays the RFID tag installation location, the rack with the RFID tag installation location and the movement route on the screen on the screen, and the forklift travel frequency calculated for the forklifts on multiple units is the travel route Is displayed for each forklift with the thickness of the line, and the forklift's stop frequency and the stop time and the calculated running frequency that stopped at the rack where each RFID tag is installed are imaged, and picking operation by each forklift Is formed by displaying a circle area with a circle image ,
The screen display means displays on the screen each of the formed load transport vehicle work flow line images, and displays the picking work status of each forklift with the line thickness of the travel route and the size of the circle image. Provided is a luggage transport vehicle work flow screen display system.

The present invention includes an RFID tag installed in a rack of a warehouse built along a traveling path on which a luggage transporter travels,
Mounted on a forklift is a load carrying vehicle, the RFID receiving reader communicates with RFID tags, receives the RFID tag information,
It consists of a screen display device that receives the received RFID tag information via a communication line and displays it on the screen as luggage transport vehicle work flow line information,
In the luggage transport vehicle work flow screen display method used in the load transport vehicle work flow screen display system for displaying the work flow information of a plurality of load transport vehicles traveling in the factory on the screen of the screen display device,
The screen display device comprises a database, input means, arithmetic processing means, and screen display means,
Factory site information including a travel path on which the forklift travels, a rack of a warehouse built along the travel path, and an ID and position information of an RFID tag installed in the rack, and a forklift ID ID information indicating is stored,
The input means inputs the luggage carrier vehicle information and RFID tag information,
The arithmetic processing means calculates the traveling frequency of the forklift from data on the operation of the forklift between the RFID tags based on the baggage carrying vehicle information and the RFID tag information ,
The work flow image of the baggage carrier vehicle displays the location of the RFID tag in the factory premises on the screen, the rack where the RFID tag is installed, and the travel route. The calculated travel frequency of the forklift is the thickness of the travel route line. The frequency of forklifts that stopped at the rack where each RFID tag is installed, the time during which the forklift stopped, and the calculated traveling frequency were imaged, and the area where the picking operation by the forklift was concentrated was displayed as a circle image. To form,
The screen display means displays the formed load transport vehicle work flow line image on the screen, and displays the picking work status of the forklift with the line thickness of the travel route and the size of the circle image. Provided is a screen display method used in a cargo transport vehicle work flow screen display system.

  Since the present invention is configured as described above, it is possible to visualize the state of the work flow line by quantifying and visualizing the work flow of the load carrying vehicle in the picking work by the arithmetic processing means so that the entire picking work can be grasped. Thus, it is possible to solve the problem of picking work by the load carrying vehicle and reduce the operation cost and management cost of the load carrying vehicle such as a forklift in the picking work.

The block diagram which shows the structure of the Example of this invention. Layout diagram in the factory warehouse. The figure which shows the function of the Example of this invention. The figure which shows the example of numerical data. The figure which shows the example by which the visualized display information was displayed on the screen. The figure which shows the other example in which the visualized display information was displayed on the screen. The flowchart figure of the Example of this invention.

  Embodiments of the present invention will be described below with reference to the drawings. Further, the following description will be given of the forklift as an example of the load carrying vehicle of the present embodiment. However, the present embodiment is not limited to a load for picking work such as a clamp lift, fork loader, top lifter, or light vehicle. The present invention can also be applied to a transport vehicle.

  In addition, in this embodiment, the case where the factory warehouse site information in the picking work in the factory warehouse is handled will be described as an example, but the factory site information in the picking work in the factory site outside the factory warehouse may be handled. it can.

  FIG. 1 is a block diagram of a load carrier vehicle work flow screen display system (hereinafter referred to as a screen display system) and a load carrier vehicle work flow screen display device (hereinafter referred to as a screen display device) according to an embodiment of the present invention. It is a figure shown by.

  In FIG. 1, a luggage transport vehicle work flow screen display system 100 includes a screen display device 1, an RFID receiving reader 2 mounted on a forklift 4, and an RFID tag 3 disposed on a rack 5 in a factory warehouse. Is done.

  The screen display device 1 includes an input unit 6, an arithmetic processing unit 7, a database 8, and an output unit 9, and the output unit 9 mainly includes a screen display unit 10. The screen display means 10 includes a screen 11.

  The database 8 stores site information in the factory warehouse. The factory warehouse site information includes factory warehouse map information, and the factory warehouse map information includes a building name, a building layout, and road information. Then, the travel path of the forklift 4 in the map information, the user identification information (hereinafter referred to as ID) of the RFID tag 3 installed in the warehouse rack 5 and the arrangement position information are stored as site information in the factory warehouse.

  Further, the database 8 stores the IDs of the plurality of forklifts 4 and the position information of the forklifts 4 traveling on the traveling path in the factory warehouse site.

  The RFID tag 3 is arranged on a rack 5 of a warehouse built along a traveling path on which the forklift 4 travels. Then, the database 8 stores which ID of the RFID tag 3 is arranged at which position.

  The RFID receiving reader 2 mounted on the forklift 4 can communicate with the RFID tag 3 and receive information emitted from the RFID tag 3.

  Accordingly, the database 8 includes site information in the factory warehouse including the travel path on which the forklift 4 travels, and the ID and position information of the RFID tag 3 installed in the rack 5 of the warehouse built along the travel path. In addition, ID information indicating the ID of the forklift 4 is stored.

  The input means 6 inputs information on a plurality of forklifts 4 traveling on the traveling path of the site in the factory warehouse and RFID information received by the RFID receiving reader 2. The time when these pieces of information are input is simultaneously recorded by reception from a time measuring means (not shown), and stored in the database 8 as reception information.

Based on the forklift information and the RFID tag information, the arithmetic processing means 7 forklifts the stop frequency and the stop time of the forklift 4 that has stopped at each RFID tag 3 installation place and the RFID tag 3 within a predetermined time. 4 calculates the travel frequency for the travel route traveled. Then, a forklift work flow line image is generated by converting the stop frequency, the stop time, and the travel frequency for the travel route into image information. Further, the forklift work flow line image is set as display information to be displayed along the place where the RFID tag 3 is installed and the movement route in the factory warehouse site on the screen.

  The output unit 9 displays a forklift work flow line image as display information on the screen 11 along the location where the RFID tag 3 is installed and the travel route in the factory warehouse site on the screen 11.

  FIG. 2 is a layout diagram of a factory warehouse site, and is a diagram displayed on the screen 11 of the screen display device 10.

  The factory warehouse site layout diagram displays the traveling path 21 of the forklift 4 formed between the rack groups of the factory warehouse site based on the map information. Further, in this factory warehouse site layout diagram, the distribution center is displayed, and the RFID tag 3 installed in the rack 5 of the warehouse 31 is displayed. As described above, the RFID tag 3 is installed in the rack 5 of the warehouse 31 built along the traveling path 21 on which the forklift 4 travels. At this time, the RFID tag 3 can also be installed in a warehouse itself built along the traveling path.

  FIG. 3 shows that RFID tag information including the RFID tag ID (for example, RFID number) read by the RFID receiving reader 2 and the reception time is accumulated as work flow line information, and the arithmetic processing means 7 performs the arithmetic processing described above. FIG.

Here, a system including the screen display device 1 is referred to as a flow line management system 200. The flow line management system 200 has the following functions.
・ Reception of REID tag information and storage of received information ・ Display of movement lines (visualization)
-Display of forklift operating status-Optimal installation and maintenance of RFID tag installation location (1) Reception of RFID tag information and storage of received information PDA using RFID tag information (RFID number, reception time) from RFID reader as work flow line information Functions stored in (personal digital assistant) (2) Work flow line display a) Work flow line search function b) Work flow line display function ・ Forklift travel route display ・ Forklift stops at a certain point Time (3) Display of operating status of forklift (4) Setting of RFID tag installation location A layout diagram of a warehouse or the like is taken in, and the position of the RFID tag to be installed in the warehouse or the like is set on the layout diagram.

  In FIG. 3, a large number of RFID tags 3 corresponding to each rack are arranged in a warehouse rack 5 such as REID-01, RFID-02, RFID-03, and RFID-04.

  The RFID reader 2 is mounted on the forklift 4 and moves on the travel path 21, that is, travels.

  The RFID reader 2 is instructed to perform a work operation and approaches the target warehouse. When approaching each RFID tag, UHF band RFID tag information is taken in as work flow line information (22).

  Received received data 23 is stored in a received data storage PDA 25 via Bluetooth 24 as a communication means. The stored reception data 25 is taken out by the SD card 26 which is a data storage medium, taken into the screen display device (personal computer) 1 of the flow line management system 200, and stored in the database 8 of the screen display device 1. Therefore, the data 8 stores data received from all the forklifts 4 that are in operation.

Based on the forklift information and RFID tag information received as described above, the calculation processing means 7 of the screen display device 1 approaches each RFID tag installation location and stops within a predetermined time in relation to the travel path 21. The forklift 4 stop frequency and the time during which the forklift 4 has stopped, and the travel frequency for the travel route traveled between the RFID tags 3 as the operating route for which the forklift 4 has been operated, are calculated as numerical data.

  The arithmetic processing means 7 generates a forklift work flow line image based on the numerical data and uses it as visualized display information. The arithmetic processing means 7 displays the visualized display information 27 on the screen of the screen display means 10 provided in the output means 9 in a size corresponding to the numerical data.

At this time, the visualized display information 27 displays the forklift work flow line image along the RFID tag installation location and travel route in the factory warehouse on the screen. The display information 27 may be edited and displayed in another form. FIG. 4 is a diagram illustrating an example of numerical data. As shown in FIG. 4, in the layout diagram of a warehouse or the like, the above-described numerically stopped time 32 of the forklift 4 that has been stopped is displayed at a corresponding position of each RFID tag installation location.

  FIG. 5 shows an example in which the visualized display information 27 is displayed on the screen, and shows an example in which one forklift 4 that obtains the visualized display information is provided. In FIG. 5, the screen 11 first displays the layout diagram in the factory warehouse shown in FIG. In the layout diagram in the factory warehouse, the traveling path 21 of the forklift 4, the warehouse 31, the rack 5 of the warehouse 31, and the RFID tag 3 installed in the rack 5 are displayed.

  Under such circumstances, the visualized display information 27 is displayed as the size of a circle corresponding to the size of the numerical data shown in FIG. 4 along the RFID tag installation location and the travel route. Although it may be expressed in a size other than a circle, a circle is most desirable.

  According to the display example of FIG. 5, the forklift 4 has stopped at the rack corresponding to the circle 41 for the longest time, and then stopped at the racks (A-3, A-4) corresponding to 42, 43 for a long time. This can be easily grasped. Further, it can be easily understood that the section where the line of the travel route 44 of the forklift 4 is thicker is the section where the travel frequency of the forklift 4 is higher.

  The arithmetic processing means 7 can select the stop frequency, the stop time, and the travel frequency for the travel route, and use the selected forklift work flow line image as a display area. In addition, it is possible to search for a work flow line of a forklift.

  Further, the arithmetic processing means 7 can calculate the stop frequency, the stop time, and the travel frequency for the travel route as numerical values, and display the calculated numerical values alone as display information or in combination with the size of the circle. it can.

  FIG. 6 shows another example in which the visualized display information 27 is displayed on the screen, and shows an example in which there are two forklifts 4 for obtaining the visualized display information. Circles 51 and 53 show the display information visualized for one forklift 4, and circles 52 and 54 show the display information visualized for the other forklift 4.

  According to the display example of FIG. 6, the two forklifts 4 have stopped for the longest time in the racks corresponding to the circles 51 and 52, respectively, and then the racks (A-3 and A-4) corresponding to 53 and 54, respectively. It can be easily grasped that the user has stopped for a long time. Moreover, the section where the movement frequency of each forklift 4 is high can be easily grasped by the thickness of the lines of the traveling routes 55 and 56 of the two forklifts 4.

  In this embodiment, the present invention can be applied even when there are a plurality of forklifts 4 as described above. In the present embodiment, the numerical data of a plurality of forklifts can be summed by the arithmetic processing means and collectively displayed on the layout diagram as the thickness of a circle or a line. The display may be color-coded for each forklift.

  FIG. 7: has shown the flowchart of a present Example, and shows the procedure of the screen display method used for the luggage transport vehicle work flow line screen display system of a present Example. In FIG. 7, forklift information and RFID information are input (S1), and the stop frequency, stop time, and travel frequency are calculated (S2). These calculation results are digitized (S3) and stored in the database 8 as measurement data.

  The measurement data is visualized, that is, visualized (S4) and displayed as the size of a circle. This circle display is displayed on or close to the RFID tag (S5). When the circle display is large, the circles are displayed in an overlapping manner, and the area where the large circle display is concentrated can be determined at a glance.

  In addition, when displaying this circle, the number of forklifts 4 operating in the concentrated area can also be displayed. That is, the operating status of the forklift 4 can be displayed.

  In addition, the database used in the present embodiment includes the traveling path in the factory site where the luggage transporter travels, and the ID and position information of the RFID tag installed in the rack of the warehouse built along the traveling path. The factory site information including the ID information indicating the ID of the luggage carrier vehicle may be stored.

  In this way, when there is a traveling path and a warehouse outside the factory warehouse, an RFID tag is provided in the rack of this warehouse, so that the operation processing means can perform a load transport vehicle work flow line in the factory site picking work. Quantifying and visualizing the flow of work to make it possible to grasp the entire state of picking work, solving problems with picking work in the factory premises by a load carrying vehicle, and forging such as forklifts in picking work It is possible to reduce the operation cost and management cost of the transport vehicle.

  Since the luggage transport vehicle work flow line image display system, the screen display device, and the screen display method according to the embodiment of the present invention are configured as described above, the load transport vehicle work flow line in picking work is digitized and visually calculated by the arithmetic processing means. By making it possible to visualize the state of work flow and grasping the entire picking work, it is possible to solve the problem of picking work by the load carrying vehicle and to manage the operation cost of the load carrying vehicle such as a forklift in the picking work Management costs can be reduced.

DESCRIPTION OF SYMBOLS 1 ... Forklift work flow screen display device (screen display device), 2 ... RFID receiving reader, 3 ... RFID tag, 4 ... Forklift, 5 ... Warehouse rack, 6 ... Input means, 7 ... Arithmetic processing means, 8 ... Database , 9 ... output means, 10 ... screen display means, 11 ... screen, 21 ... travel route, 22 ... work flow line information capture, 27 ... visualized display information, 31 ... warehouse, 44, 55, 56 ... travel route 100 ... Forklift work flow line screen display system, 200 ... Flow line management system.

Claims (6)

In the luggage transport vehicle work flow screen display system for displaying the work flow information of a plurality of load transport vehicles traveling in the factory on the screen of the screen display device,
An RFID tag installed in a rack of a warehouse built along a traveling path on which a luggage carrier travels,
Mounted on a forklift is a load carrying vehicle, the RFID receiving reader communicates with RFID tags, receives the RFID tag information,
It consists of a screen display device that receives the received RFID tag information via a communication line and displays it on the screen as luggage transport vehicle work flow line information,
The screen display device comprises a database, input means, arithmetic processing means, and screen display means,
Factory site information including a travel path on which the forklift travels, a rack of a warehouse built along the travel path, and an ID and position information of an RFID tag installed in the rack, and a forklift ID ID information indicating is stored,
By the input means, load-carrying vehicle information and RFID tag information is input,
By the processing unit, the forklift is calculated the traffic volume of a forklift from the data running between the RFID tag based on the load-carrying vehicle information and RFID tag information,
The work flow image of the load carrier vehicle displays the RFID tag installation location, the rack with the RFID tag installation location and the movement route on the screen, and the calculated forklift travel frequency is the thickness of the line of the travel route. The forklift's stop frequency and the time it stopped at the rack where each RFID tag was installed, and the calculated travel frequency were imaged, and the forklift's stop frequency and the stop time were calculated. A region where the driving frequency is concentrated is formed as a circle image,
By the screen display means, the formed load transport vehicle work flow line image is displayed on the screen, and the picking work status of the forklift is displayed with the thickness of the line of the travel route and the size of the circle image. Luggage transport vehicle work flow screen display system. According to claim 1, by the processing means, the load carrying vehicle work flow line images, luggage transport vehicle work flow line screen display system characterized and this generated for a plurality of the forklift. 3. The load carrying vehicle according to claim 1, wherein the work flow line image of the load carrying vehicle includes displaying a time when the forklift is stopped at a position corresponding to each RFID tag installation location. Work flow screen display system. 3. The numerical data calculated according to claim 1 or 2, wherein the load transportation vehicle work flow line image is calculated with respect to a stop frequency and a stop time of a forklift that has stopped at a rack where each RFID tag is installed, and a calculated travel frequency. A display screen system for a work flow line of a load carrying vehicle characterized by comprising: In the luggage transport vehicle work flow screen display system for displaying the work flow information of a forklift that is a plurality of load transport vehicles traveling in the factory on the screen of the screen display device,
An RFID tag installed in a rack of a warehouse built along a traveling path on which a forklift travels,
Mounted on a forklift, and the RFID reception reader communicates with RFID tags, receives the RFID tag information,
It consists of a screen display device that receives the received RFID tag information via a communication line and displays it on the screen as luggage transport vehicle work flow line information,
The screen display device comprises a database, input means, arithmetic processing means, and screen display means,
Factory site information including a travel path on which the forklift travels, a rack of a warehouse built along the travel path, and an ID and position information of an RFID tag installed in the rack , and a forklift ID ID information indicating is stored,
By the input means, load-carrying vehicle information and RFID tag information is input,
By the processing unit, the forklift is calculated the traffic volume of a forklift from the data running between the RFID tag based on the load-carrying vehicle information and RFID tag information,
The work flow image of the luggage carrier vehicle displays the RFID tag installation location, the rack with the RFID tag installation location and the movement route on the screen on the screen, and the forklift travel frequency calculated for the forklifts on multiple units is the travel route Is displayed for each forklift with the thickness of the line, and the forklift's stop frequency and the stop time and the calculated running frequency that stopped at the rack where each RFID tag is installed are imaged, and picking operation by each forklift Is formed by displaying a circle area with a circle image ,
The screen display means displays on the screen each of the formed load transport vehicle work flow line images, and displays the picking work status of each forklift with the line thickness of the travel route and the size of the circle image. Luggage transport vehicle work flow screen display system. An RFID tag installed in a rack of a warehouse built along a traveling path on which a luggage carrier travels,
Mounted on a forklift is a load carrying vehicle, the RFID receiving reader communicates with RFID tags, receives the RFID tag information,
It consists of a screen display device that receives the received RFID tag information via a communication line and displays it on the screen as luggage transport vehicle work flow line information,
In the luggage transport vehicle work flow screen display method used in the load transport vehicle work flow screen display system for displaying the work flow information of a plurality of load transport vehicles traveling in the factory on the screen of the screen display device,
The screen display device comprises a database, input means, arithmetic processing means, and screen display means,
Factory site information including a travel path on which the forklift travels, a rack of a warehouse built along the travel path, and an ID and position information of an RFID tag installed in the rack, and a forklift ID ID information indicating is stored,
The input means inputs the luggage carrier vehicle information and RFID tag information,
The arithmetic processing means calculates the traveling frequency of the forklift from data on the operation of the forklift between the RFID tags based on the baggage carrying vehicle information and the RFID tag information ,
The work flow image of the baggage carrier vehicle displays the location of the RFID tag in the factory premises on the screen, the rack where the RFID tag is installed, and the travel route. The calculated travel frequency of the forklift is the thickness of the travel route line. The frequency of forklifts that stopped at the rack where each RFID tag is installed, the time during which the forklift stopped, and the calculated traveling frequency were imaged, and the area where the picking operation by the forklift was concentrated was displayed as a circle image. To form,
The screen display means displays the formed load transport vehicle work flow line image on the screen, and displays the picking work status of the forklift with the line thickness of the travel route and the size of the circle image. A screen display method used in a load transport vehicle work flow screen display system.

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