JP6508752B1 - Worker's terminal and cargo handling vehicle - Google Patents

Abstract

The present invention provides an operator terminal and a cargo handling vehicle capable of securing both safety and workability. A display terminal unit (1) is installed at a driver's seat of a cargo handling work vehicle (100), displays work information, and receives an input operation of the worker, and determines presence or absence of traveling. The first determination unit 3 includes a second determination unit 4 that determines the presence / absence of a cargo handling operation, and a switching unit 5 that switches between valid / invalid of an input operation and switches between display / non-display of work information. The switching unit 5 invalidates the input operation when the first determination unit 3 determines that travel is present, and hides the work information, and the input when the second determination unit 4 determines that the cargo handling operation is present. While invalidating the operation, the operation information is displayed, the first determination unit 3 determines that there is no travel, and the second determination unit 4 determines that the cargo handling operation does not exist, the input operation is validated and the operation is performed. It is characterized by displaying information. [Selected figure] Figure 1

Description

  The present invention relates to a terminal for workers and a cargo handling vehicle provided with the terminal for workers.

  A terminal for a worker provided to a cargo handling work vehicle (for example, a forklift) is used in a stock management system together with a management device that manages stock data of goods. The terminal for workers can display work information related to the cargo handling work received from the management device, and can receive an input operation of the worker. However, if the worker terminal displays work information or receives an input operation while traveling, there is a risk that safe traveling may be impeded.

  On the other hand, in the field of passenger cars, there is known a technique for invalidating an input operation of a car navigation during driving (see, for example, Patent Document 1). However, since the passenger car does not carry out the cargo handling operation, when this technology is applied to the cargo handling vehicle as it is, the workability of the cargo handling operation may be deteriorated.

JP, 2006-317421, A

  This invention is made in view of the said situation, Comprising: The place made into the subject is providing the terminal for workers and cargo handling work vehicle which can ensure both safety and workability. .

In order to solve the above-mentioned subject, the terminal for workers concerning the present invention,
It is a terminal for workers installed in a loading and unloading work vehicle,
A display input unit that displays work information related to the loading and unloading work of the loading and unloading work vehicle and receives an input operation of an operator of the loading and unloading work vehicle;
A first determination unit that determines the presence or absence of travel of the cargo work vehicle;
A second determination unit that determines the presence or absence of the cargo handling operation of the cargo handling work vehicle;
A switching unit which switches between valid / invalid of the input operation to the display / input unit and switches between display / non-display of the work information of the display / input unit;
Equipped with
The switching unit is
When the first determination unit determines that traveling is present, the input operation is invalidated and the work information is hidden.
When the second determination unit determines that the cargo handling operation is present, the input operation is invalidated and the work information is displayed.
When the first determination unit determines that the vehicle is not traveling and the second determination unit determines that the cargo handling operation is not performed, the input operation is validated and the work information is displayed.

The switching unit is
When the first determination unit determines that traveling is present, a block screen in which the work information is not displayed is displayed, and the background color of the block screen is opposite to the background color of the screen on which the work information is displayed. It is preferable to use a color.

The switching unit is
When the first determination unit determines that the vehicle is traveling, the work information may be hidden and the location of the product related to the cargo handling work may be displayed.

In order to solve the above problems, the cargo handling vehicle according to the present invention is:
One of the above-mentioned terminals for workers is provided.

  According to the present invention, it is possible to provide a worker terminal and a cargo work vehicle capable of securing both safety and workability.

It is a figure which shows the structure of the terminal for workers and cargo handling work vehicle of this invention. It is a figure which shows an example of the operation | work information displayed on the terminal for workers of this invention. It is a figure which shows the control flow of the terminal for workers of this invention. (A) It is a figure which shows an example of the block screen displayed on the terminal for workers of this invention. (B) It is a figure which shows another example of the block screen displayed on the terminal for workers of this invention.

  Hereinafter, with reference to the attached drawings, embodiments of a terminal for a worker and a cargo work vehicle according to the present invention will be described.

  FIG. 1 shows a worker terminal 1 and a forklift 100 (corresponding to “a cargo handling vehicle” of the present invention) according to an embodiment of the present invention. The operator terminal 1 is installed at the driver's seat of the forklift 100. The worker terminal 1 is configured to be able to mutually communicate with the management device 20 via the network 31 and the communication unit 32 (for example, a wireless antenna).

  The management device 20 is configured of, for example, at least one computer such as a PC server. The management device 20 generates work information data related to the cargo handling work of the forklift 100 and transmits the work information data to the forklift 100 via the network 31 and the communication unit 32.

  The work information data includes information on the type of cargo handling work and information on a management item of a product related to the cargo handling work. The former includes, for example, goods receipt, goods issue, movement, inventory, and the like. The latter includes, for example, a product code, a product name, a lot, a shelf life, a receipt date, a quantity, a location, and the like. The configuration of the information on the type of cargo handling operation and the information on the management item of the product related to the cargo handling operation can be changed as appropriate.

  The forklift 100 includes an accelerator lever 10, a cargo handling lever (lift lever, tilt lever and reach lever) 11, a control device 12, a traveling motor (electric motor) 13, a first detection means 14, and a driving wheel 15. A cargo handling motor (electric motor) 16, a second detection means 17, a hydraulic circuit 18, and a cargo handling device 19 are provided.

  When the operator operates the accelerator lever 10, the amount of operation of the accelerator lever 10 is input to the control device 12, and the control device 12 rotates the traveling motor 13 according to the amount of operation of the accelerator lever 10 to drive the drive wheels 15 Drive.

  The first detection means 14 (for example, an encoder) provided in the traveling motor 13 detects the rotational speed of the traveling motor 13 and feeds it back to the control device 12. Thus, the control device 12 can calculate the traveling speed of the forklift 100.

  When the loading lever 11 is operated by the operator, the operation amount of the loading lever 11 is input to the control device 12, and the control device 12 rotates the loading motor 16 according to the operation amount of the loading lever 11. When the loading motor 16 rotates, the hydraulic circuit 18 sends hydraulic fluid to the loading device 19. The hydraulic circuit 18 sends hydraulic fluid to the lift cylinder of the cargo handling device 19 when the lift lever is operated, feeds hydraulic fluid to the tilt cylinder of the cargo handling device 19 when the tilt lever is operated, and the lever is operated Hydraulic fluid is sent to the reach cylinder of the cargo handling device 19.

  The cargo handling apparatus 19 includes each cylinder (lift cylinder, tilt cylinder and reach cylinder), a carriage, a pair of left and right masts erected on the carriage, and a pair of left and right forks movably mounted on the masts. . For example, the fork can be raised and lowered by the lift cylinder, the fork can be inclined by the tilt cylinder, and the carriage can be moved back and forth by the reach cylinder.

  The second detection means 17 (for example, an encoder) provided in the cargo handling motor 16 detects the rotational speed of the cargo handling motor 16 and feeds it back to the control device 12. Thereby, the control device 12 can specify the presence or absence of the loading operation of the forklift 100.

  The worker terminal 1 includes a display input unit 2, a first determination unit 3, a second determination unit 4, and a switching unit 5. For example, when the worker terminal 1 is a touch panel, the screen of the touch panel functions as the display input unit 2, and at least one microcomputer (or a dedicated IC) provided inside the touch panel is the first determination unit 3, the second It functions as the determination unit 4 and the switching unit 5.

  The display input unit 2 displays the work information related to the cargo handling work of the forklift 100 based on the work information data received from the management device 20. Here, the operation information in the present specification does not include “location (identification number regarding storage place of goods)”. That is, as shown in FIG. 2, the display input unit 2 displays “location” and work information.

  In addition, the display input unit 2 receives an input operation of the worker of the forklift 100. The display input unit 2 may further include an input unit such as a keyboard and / or a barcode scanner in addition to the screen of the touch panel.

  The first determination unit 3 determines whether the forklift 100 is traveling. For example, when the traveling speed of the forklift 100 input from the control device 12 is larger than a predetermined value (for example, 0), the first determination unit 3 determines that traveling is present, and the traveling speed of the forklift 100 is equal to or less than a predetermined value. In the case of, it is determined that there is no travel.

  The first determination unit 3 directly receives the detection result of the first detection means 14 instead of receiving the calculation result of the traveling speed of the forklift 100 from the control device 12, calculates the traveling speed of the forklift 100, and travels the forklift 100. The presence or absence of may be determined. In addition, when a current detection unit (for example, a current sensor) is provided between the control device 12 and the traveling motor 13, the first determination unit 3 determines whether the forklift 100 is traveling based on the detection result of the current detection unit. May be determined.

  The second determination unit 4 determines the presence or absence of the cargo handling operation of the forklift 100. For example, the second determination unit 4 can directly use the determination result of the presence or absence of the cargo handling operation by the control device 12 as the determination result of the presence or absence of the cargo handling operation.

  The second determination unit 4 may directly receive the detection result of the second detection unit 17 instead of receiving the specification result of the presence or absence of the cargo handling operation from the control device 12, and may determine the presence or absence of the cargo handling operation of the forklift 100. When a current detection means (for example, a current sensor) is provided between the control device 12 and the cargo handling motor 16, the presence or absence of the cargo handling operation of the forklift 100 may be determined based on the detection result of the current detection means. .

  The switching unit 5 switches between valid / invalid of an input operation to the display input unit 2 and switches between display / non-display of work information of the display input unit 2. Specifically, the switching unit 5 switches between valid / invalid of the input operation and display / non-display of work information according to the control flow of FIG. 3. The control flow will be described below.

  When the power of the worker terminal 1 is turned on, the worker terminal 1 repeats the control of FIG. 3. First, the first determination unit 3 determines the presence or absence of travel of the forklift 100 (S1). When the first determination unit 3 determines that traveling is present (YES in S1), the switching unit 5 invalidates the input operation and hides the operation information. Thereby, the safety at the time of driving can be secured.

  The switching unit 5 causes the display / input unit 2 to display a block screen when the work information is not displayed. The background color of the block screen is preferably the opposite color of the background color of the screen on which the work information is displayed. For example, when the background color of the screen on which the work information is displayed is blue, the background color of the block screen is preferably yellow. In addition, as shown in FIG. 4A, the block screen may display a text message after hiding the work information, or as shown in FIG. 4B, the work information may not be displayed. Once displayed, the text message and the "location" of the goods subject to the cargo handling operation may be displayed.

  When the first determination unit 3 determines that the vehicle is not traveling (NO in S1), the second determination unit 4 determines the presence or absence of the cargo handling operation of the forklift 100 (S3). When the second determination unit 4 determines that the cargo handling operation is present (YES in S3), the switching unit 5 invalidates the input operation and causes the operation information to be displayed (S4). As a result, the worker can carry out the cargo handling operation while confirming the operation information displayed on the display input unit 2, so that it is possible to reduce the operation error and the return. That is, the efficiency of the cargo handling operation can be secured.

  When the second determination unit 4 determines that the cargo handling operation is not performed (NO in S3), the switching unit 5 validates the input operation and causes the operation information to be displayed (S5). For example, the worker can input product information (for example, a product code, a location, the number of deliveries, and the like) from the display input unit 2. The input product information is transmitted to the management device 20, and inventory data of the management device 20 is updated.

  After all, according to the worker terminal 1 and the forklift 100 according to the present embodiment, both safety and workability can be secured.

  As mentioned above, although embodiment of the terminal for workers and cargo handling work vehicle which concern on this invention was described, this invention is not limited to the said embodiment.

  For example, if the display input unit according to the present invention displays work information related to the loading and unloading work of the loading and unloading work vehicle and the input operation of the worker of the loading and unloading work vehicle is received, the display unit and the input unit may be separated. Good. In addition, when a cargo handling operation is performed during traveling, it is preferable that the switching unit 5 invalidate the input operation and hide the operation information with an emphasis on safety.

  In the control flow of the terminal 1 for workers, after the second determination unit 4 determines the presence or absence of cargo handling operation of the forklift 100 (S3), the first determination unit 3 determines the presence or absence of travel of the forklift 100 (S1) It is also good. That is, in the control flow of FIG. 3, the order of step S1 and step S3 may be interchanged.

  The cargo handling work vehicle according to the present invention may be anything other than a forklift, as long as the cargo handling work can be performed.

100 Forklifts (load handling vehicles)
DESCRIPTION OF SYMBOLS 1 Operator's terminal 2 Display input part 3 1st determination part 4 2nd determination part 5 switching part 10 accelerator lever 11 cargo handling lever 12 control apparatus 13 traveling motor 14 1st detection means 15 drive wheel 16 cargo handling motor 17 2nd detection means 18 Hydraulic circuit 19 Cargo handling device 20 Management device 31 Network 32 Communication part

Claims (4)

It is a terminal for workers installed in a loading and unloading work vehicle,
A display input unit that displays work information related to the loading and unloading work of the loading and unloading work vehicle and receives an input operation of an operator of the loading and unloading work vehicle;
A first determination unit that determines the presence or absence of travel of the cargo work vehicle;
A second determination unit that determines the presence or absence of the cargo handling operation of the cargo handling work vehicle;
A switching unit which switches between valid / invalid of the input operation to the display / input unit and switches between display / non-display of the work information of the display / input unit;
Equipped with
The switching unit is
When the first determination unit determines that traveling is present, the input operation is invalidated and the work information is hidden.
When the second determination unit determines that the cargo handling operation is present, the input operation is invalidated and the work information is displayed.
An operator characterized in that the input operation is validated and the work information is displayed when the first determination unit determines that the vehicle is not traveling and the second determination unit determines that the cargo handling operation is not performed. Terminal. The switching unit is
When the first determination unit determines that traveling is present, a block screen in which the work information is not displayed is displayed, and the background color of the block screen is opposite to the background color of the screen on which the work information is displayed. The terminal for workers according to claim 1 making it color. The switching unit is
The operator according to claim 1 or 2, wherein when the first determination unit determines that there is traveling, the work information is not displayed and the location of the product related to the cargo handling work is displayed. Terminal. A cargo handling vehicle provided with the terminal for workers according to any one of claims 1 to 3.

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