JPH07277424A - Display device for picking - Google Patents

Abstract

PURPOSE:To reconfirm display contents by redisplaying them after clearing the display contents of figures, etc., corresponding with a picking data supplied from others for one time. CONSTITUTION:This is a display device furnished with display parts 13a-13c to display a picking data, a control circuit 22 to carry out electrifying control of light emitting diodes D1-D7 forming these display parts 13a-13c and a reset switch 12 to clear display by the display parts 13a-13c by way of working on the control circuit 22 and to control display contents from display of the picking data to another display and to the display of the picking data by another operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a picking display device which is frequently used for displaying quantities, and is particularly suitable for use as a sorting facility for articles in distribution centers and the like.

[0002]

2. Description of the Related Art In a distribution center, various kinds of products to be carried in are sorted according to destinations.
Although there are various sorting methods, an example thereof is a method in which an article (picker) picked up by an operator (picker) puts the article stored on the product shelf into a container conveyed by a conveyor or the like. A display device is provided on each of the product shelves to display the picking amount on the picker.
The display device is generally composed of an LED, and for example, if the display device of a product shelf containing toothpaste displays 5 according to an instruction from the control unit, the picker is determined to pick five toothpastes. Then, when performing the picking operation, the picker visually checks the numeral 5 to pick five toothpastes, presses the reset switch, and then puts them into the container to finish. An example of a method of arranging articles of this kind and a display device is disclosed in Japanese Patent Laid-Open No. 4-256605. The reset switch is provided for notifying the control unit of the end of a series of picking work and clearing the display device at the same time. The control unit is composed of a personal computer for controlling the picking work, and serves as a terminal for the computer controlling the entire distribution center.

[0003]

SUMMARY OF THE INVENTION The picker is very busy because it must pick up and put products one after another into containers that are conveyed in a nearly continuous state. For this reason, the picker may misunderstand the numbers or pick when he / she remembers, and in this case, a picking error occurs. However, the conventional display device cannot be redisplayed by pressing the reset switch and clearing the numbers, and even if there is anxiety, it cannot be reconfirmed. Therefore, picking mistakes are overlooked as they are, which is one of the causes of troubles such as shortage of products being discovered at the delivery destination or unnecessary products being delivered. Incidentally, Japanese Utility Model Laid-Open No. 62-63791 discloses a display device which redisplays the display contents once cleared by inputting a redisplay command. However, a redisplay command is issued by a keyboard operation having multiple functions. This is an input configuration and cannot be easily incorporated in the display device. Moreover, the picker cannot easily operate during the picking work,
It is difficult to apply it as a member that constitutes a sorting device.

Further, there are individual differences in the visual acuity of pickers,
Body shapes such as height are not uniform. Further, depending on the installation position of the product shelf, for example, a ceiling light may be reflected on the display portion and may be difficult to see. However, the conventional display device is
Regardless of the installation position of the product shelves, and because the digits of all digits were set to a constant brightness, it was not possible for the picker to adjust the brightness to a level that was easy for the user to see according to his or her visual acuity and body type. Therefore, it is necessary for the picker to look closely and to change the angle, which easily causes the above-mentioned picking mistake and is a cause of lowering work efficiency. Japanese Patent Laid-Open No. 55-46786 discloses a brightness adjusting technique for a display, but it has a configuration in which the duty ratio of a pulse signal for driving a light emitting element is variable, and an oscillator, a gate circuit or the like is required. Therefore, the circuit configuration is complicated. Further, it is not possible to individually adjust the brightness of each light emitting element, and if the individual adjustment is intentionally performed, an oscillator must be provided for each light emitting element, and the circuit configuration becomes more complicated. Therefore, like the display of sorting equipment,
This is not applicable when the installation space is limited and simple operation is required. Also, JP-A-56-64
Japanese Patent No. 523 discloses a brightness adjustment technique for adjusting the brightness of a display device in accordance with a change in ambient illuminance. However, a photodetector element for detecting ambient illuminance or the like is required, and a circuit configuration is required. It gets complicated. Moreover, the brightness of the display is automatically adjusted according to the surrounding illuminance,
It is not possible to arbitrarily set the required brightness in consideration of the individual difference of the person who looks at the display device such as a picker.

Further, the shape of the product is large and small, and the weight is light and heavy. Further, since the picking amount is not uniform, it may happen that both hands of the picker are blocked and the reset switch cannot be pressed. In such a case, if the reset switch is pressed prior to picking, the numbers will be cleared, and it will not be possible to pick while checking the numbers. In this case as well, there is a problem that a picking quantity error occurs.

A main object of the present invention is to provide a display device that reduces picking mistakes.
It is an object of the present invention to provide a display device configured so that the display contents such as numbers corresponding to the supplied data are once cleared and then redisplayed so that the display confirmation can be performed again.
A second object of the present invention is to provide a display device configured to arbitrarily set the brightness of the display unit in response to an installation position of the display device and an operator who needs to read the display content. . A third object of the present invention is to provide a display device that continuously displays for a desired time after operating a reset switch to clear display contents.

[0007]

The first object of the present invention is to provide display sections (13a) to (13c) which emit light when energized to display picking information, and the display section (13).
A reset switch (12) for clearing the display of (a) to (13c) and the display section (13a) according to desired data.
To (13c) are controlled to emit light, and the first operation of the reset switch (12) controls the display of the display units (13a) to (13c) to a display other than the display based on the data. , The following reset switch (1
By the operation of 2), the display by the above data is redisplayed,
This is achieved by a picking display device (11) characterized by further comprising a control circuit (22) for performing a display corresponding to this desired data when the next desired data is supplied.

The second object of the present invention is to provide a display section (13a) for displaying picking information by emitting light when energized.
To (13c), display is performed on the display units (13a) to (13c) corresponding to desired data, and the brightness of the display units (13a) to (13c) is set stepwise by energization control. Control circuit (22) and the control circuit (22)
Is operated simultaneously with the reset switch (12) which clears the display of the display sections (13a) to (13c) and generates a setting signal for changing the brightness stepwise. In this case, the control circuit (22) is switched to the brightness setting operation, the brightness is changed stepwise by operating the reset switch (12), and the brightness data selected by the simultaneous operation again after the desired brightness is selected is displayed. The present invention is achieved by a picking display device (11) including an auxiliary switch (14) for storing in a memory circuit (16) by the action of a control circuit (22).

The third object of the present invention is to provide a display section (13a) which emits light when energized to display picking information.
To (13c), a reset switch (12) for clearing the display on the display units (13a) to (13c), and controlling the energization of the display units (13a) to (13c) according to desired data to emit light. And by operating the reset switch (12), the display portions (13a) to (13)
A control circuit (22) for clearing the display of c), and a programmable circuit that operates corresponding to the operation of the reset switch (12) and, after a desired time delay, drives the control circuit (22) to perform the clear operation. Picking display device (11) comprising a timer (17)
Achieved by

[0010]

According to the display device (11), the control circuit (22) corresponds to the first operation of the reset switch (12).
Controls the display of the display units (13a) to (13c) from the display by data to another display, and by the next operation, controls the display by data again. Therefore, the display device (11)
The viewer can reconfirm the display by the data, if necessary. According to the display device (11),
By operating the reset switch (12) and the auxiliary switch (14) at the same time, the control circuit (22) is switched to the brightness setting operation of the display sections (13a) to (13c), and the brightness is operated by operating the reset switch (12). Change in steps. Then, after selecting the desired brightness, the data of the selected brightness is stored in the memory circuit (16) by operating the reset switch (12) and the auxiliary switch (14) again at the same time, and the desired brightness is set. Be seen. A dedicated brightness setting switch may be provided in place of the brightness setting switch having the configuration using the reset switch (12) and the auxiliary switch (14). Further, according to the display device, since the programmable timer (17) is provided between the reset switch (12) and the control circuit (22), the reset operation is performed after the delay time set by the programmable timer (17). During the delay time, you can check the data display.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a display device to which the present invention is applied will be described below with reference to FIGS. 1 is a circuit diagram showing the configuration of the display device, FIG. 2 is a perspective view of a main part of the picking equipment provided with the display device, FIG. 3 is a side view showing a mounting mode of the display device and a display example, and FIGS. FIG. 6 is a side view of the display device showing the control of the display content, and FIG. 7 is a flowchart for explaining the control of the display content. In describing the embodiments, the configuration of the picking equipment to which the display device is applied will be described with reference to FIG. 2, and then the configuration and operation of the display device will be described. First, the basic structure of the picking equipment 1 will be described. The picking equipment 1 is composed of a belt conveyor 3 that conveys a container 2 and a product shelf 4 arranged along the belt conveyor 3. A storage box 5 is arranged on the product shelf 4, and products 6 designated therein, such as toothpaste and toothbrush, are individually stored. The transporting means for the container 2 is not limited to the belt conveyor 3 and may be, for example, a roller conveyor. The product shelf 4 may be partitioned into booths and the storage box 5 may be omitted as shown in FIG. In the shelf structure shown in FIG. 2, the display devices 11 are individually provided corresponding to the mounting positions of the storage boxes 5, and in the configuration shown in FIG. The display device 11 is provided corresponding to the.

In the picking operation, the belt conveyor 3 conveys the container 2 in the direction of arrow A. At this time, the product 6 may be loaded in the container 2 on the upstream side, and some containers 2 may be conveyed in an empty state as shown at the left end. When the container 2 is conveyed, the display device 11 corresponding to the storage box 5 or the booth 7 displays a number in synchronization with this, and the picker picks the designated number of products and installs them on the display device 11. Then press the reset switch 12. Next, the picked product is put into the container 2 to complete a series of picking operations.
The display device 11 according to the present embodiment includes a reset switch 1
The displayed number is once cleared by operating 2, and is displayed again after a predetermined time. The configuration and action will be described below.

The display device 11 in this embodiment has three display parts 13a, 13b, 13c as shown in the lower part of FIG.
Are arranged side by side to display a 3-digit number. A reset switch 12 corresponding to the first switch is provided on the right side of the substrate 10, and is configured to clear the numbers, inform the control unit, and set the address of the display device 11. Then, the display device 11 displays the number of pickings by the display units 13a to 13c,
A control unit 21 for clearing and setting an address is provided. Next, the main configuration of the control unit 21 will be described. The control unit 21 is a control circuit 2 including a CPU.
2, a memory circuit 23, a decoder 25 and the like. The control circuit 22 is connected via a data bus to a higher-level computer that comprehensively controls picking work and address setting, for example, a personal computer provided for each predetermined picking work unit so that data can be exchanged. The control circuit 22 and the memory circuit 23 are connected to each other via a data bus 24 so that data can be exchanged between them. When the reset switch 12 is pressed to switch to the ON state, one end of the I / O port of the control circuit 22 is grounded via the resistor R0. The operation corresponding to the ON operation of the reset switch 12 is performed.

The display signal obtained from the control circuit 22 is BC
D, and each of the display units 13a to 13c of the display device 11 is 7
It is composed of individual segments. Since each segment is composed of the light emitting diodes D1 to D7, the display signal of the BCD is converted into the 7-ary drive signals V1 to V7.
A decoder 25 is provided for converting to. In addition,
Although the three-digit display units 13a to 13c are provided in the present embodiment, the circuit configuration of each display unit is the same, and therefore the circuit configuration of the display unit 13c is shown in FIG. Resistance R1
˜R7 are for adjusting the current of the light emitting diodes D1 to D7, and the respective light emitting diodes D1 to D7 are arranged in the display portion 13c shown in the lower part of the figure as shown in the figure, and the numbers 0 to 9 are arranged.
Up to are displayed.

Next, the operation of the display device 11 will be described in relation to the picking work. Prior to the picking, the control circuit 22 is supplied with data relating to the product to be picked and the quantity (hereinafter referred to as a picking signal for convenience of description), and the accepted picking signal is the memory circuit 23.
Is stored at a predetermined address of. This operation corresponds to step S1 shown in FIG. Next, the control circuit 22 reads the picking signal from the memory circuit 23, and the decoder 2
Supply to 5. The decoder 25 performs conversion from BCD to 7-ary, but since a truth table and the like regarding this conversion are known to those skilled in the art, illustration and description thereof will be omitted. When the numeral 5 is displayed by the output of the decoder 25 as shown in the uppermost row of FIG. 3, a current flows through the light emitting diodes D1, D6, D7, D3, D4 in the display unit 13c. When the numeral 12 is displayed as shown in the lowermost row of FIG. 3, the light emitting diodes D2 and D3 are energized in the display portion 13b, and the light emitting diode D1 is in the display portion 13c.
Power is supplied to D2, D7, D5, and D4. This operation corresponds to step S2 shown in FIG.

As described with reference to FIG. 2, the picker 8 picks the article 6 in the booth 7 on which the numeral 5 is displayed, and then pushes the reset switch 12 to insert the article 6 into the container 2. Then, the process proceeds to the next picking work, that is, the work of picking 12 products 6 in the booth 7 of the third stage in the example of FIG. 3, and the reset switch 12 is operated after the picking. At this time, in the conventional display device,
The displayed number was cleared immediately. But,
The following operation is performed in the display device 11 of this embodiment. The picking signal supplied from the control circuit 22 to the decoder 25 is latched until the reset switch 12 is operated. And step S
When the reset switch 12 is operated as shown in FIG. 3, the contact shown on the right side of FIG. 1 is turned on, and the input end of the control circuit 22 is grounded via the resistor R0. As a result, the control circuit 22 temporarily stores the latched picking signal in the memory circuit 23, and then supplies a so-called standby signal for horizontal segment display as shown in FIG. 4 to the decoder 25.

The standby signal is sent to each of the display units 13a, 13b, 1
For 3c, one light emitting diode, for example, light emitting diode D7 is set to emit light. Therefore, when the reset switch 12 is turned on, the numbers are cleared and a horizontal single segment display is performed. Note that the horizontal single segment display is performed only for the display unit on which the cleared number is displayed, for example, for the display device 11 in the uppermost row of FIG. 3, the horizontal single segment display is performed for the display unit 13c and the lowermost display is performed. Regarding the device 11, one horizontal segment display may be performed on the display sections 13b and 13c, but in this embodiment, the picker 8 is easily visible, and therefore, as shown in FIG. I am trying to display the segment. The above horizontal single segment display corresponds to step S4 shown in FIG.

By the way, when the picker 8 picks up the product 6, there are cases where there is no concern about the number of products and there is a case where there is concern and the user wants to confirm the number of pickings again.
Then, the case where there is no anxiety will be described with respect to the uppermost display device 11 in FIG. 4, and the reset switch 12 is left as it is without being operated again. As a result, the uppermost display device 11 continues to display one horizontal segment as shown in FIG. On the other hand, when the number of picking is uncertain about the display device 11 at the bottom of FIG.
The reset switch 12 is operated again as shown in FIG. As a result, the control circuit 22 clears the standby signal supplied to the display device 11 at the bottom, reads the data for displaying the number 12 previously stored in the memory circuit 23, and supplies it to the decoder 25 again. To do. Therefore, as shown in FIG. 5, one horizontal segment display is performed on the display device 11 at the top, but the display device 11 at the bottom is displayed.
Is displayed again. That is, although the operation of step S6 is performed, the second display time is for reconfirmation, and is set to a short time of, for example, about 2 seconds.

When the numerical display for 2 seconds is completed, the picking signal is cleared and the horizontal one segment display is performed again. However, the picker 8 is no longer anxious, so
The reset switch 12 is not operated, and one horizontal segment display continues until picking of one product shelf 4 is completed. What should be noted here is that when picking the product shelf 4 handled by the picker 8 and looking at the product shelf 4, if all the booths 7 are properly picked, a number is displayed. All of the display devices 11 that have been used have a horizontal single segment display, and if picking is forgotten, numbers are left.
That is, according to the configuration of the present embodiment, it is possible to double-check the reconfirmation of the number of pickings and the completion of work.
Products 6 for all booths 7 displayed in this way
When all of the reset switches 12 of the display device 11 displaying numbers are controlled to be turned on, the control circuit 22 determines that the picking is completed, and performs the next picking order as shown in step S7. Generates a display clear command signal in response to signal reception. As a result, the display device 1 in which one horizontal segment is displayed
As shown in step S8, No. 1 temporarily disappears, and then the process returns to step S1 to display the quantity of the display device 11 provided in the booth 7 to be picked.

At this time, no picking is required for the uppermost display device 11 and the lowermost display device 11, and the booth 7 in the middle stage is not required.
If four items 6 are to be picked up, the number 4 is displayed on the middle display device 11 and the other display devices 11 are not displayed, as shown in FIG. Hereinafter, the same operation as described above is performed for the display device 11 in the middle stage. If the picking work is stopped without performing the next picking order shown in step S7,
The upper and lower display devices 11 continue to stand by while displaying one horizontal segment. When the picking work is stopped, the operation is finished as it is. In this case, there are various modes such as ending the operation by turning off the power, turning off the display once, and then turning off the power. As described above, in the display device 11 shown in the present embodiment, the reset switch 12 can be operated to perform redisplay after the picking work is completed, and picking errors by the picker 8 can be reduced. Although each of the light emitting diodes D1 to D7 is connected to the cathode follower in the circuit configuration shown in FIG. 1, it may be configured to be an anode follower. Furthermore, when the reset switch 12 is operated in the ON state, a voltage signal of a predetermined voltage level of the control circuit 22 may be supplied.

Next, a second embodiment of the present invention will be described with reference to FIGS. The difference between this embodiment and the first embodiment is that the brightness of the display units 13a to 13c is adjusted. Therefore, the same reference numerals are given to the parts that perform the same operations as in the first embodiment, and the description will be omitted. Note that FIG. 8 is a circuit diagram of the display device, and FIG. 9 is an explanatory diagram showing a process of brightness adjustment. On the panel of the display device 11,
In addition to the reset switch 12, an AUX switch 14 (hereinafter referred to as an auxiliary switch) is provided. For convenience of illustration, the switch circuits of the reset switch 12 and the auxiliary switch 14 are shown on the upper right side of FIG.
Indicated by. That is, when the reset switch 12 is pushed, the switch circuit 12a shown in the upper right is turned on, and when the auxiliary switch 14 is pushed, the switch circuit 14a shown in the upper right is turned on.
Turns on. The AND circuit 15 is for switching the control circuit 22 to the brightness setting operation, and the memory circuit 16 is for recording data for brightness setting. As the memory circuit 16, although the memory circuit 23 described above may be used, it is illustrated especially for the brightness setting. The memory circuit 16 is an EEPROM that can electrically store and erase data.

Next, the brightness adjusting operation of the display portions 13a to 13c will be described. When setting the brightness, the reset switch 12 and the auxiliary switch 14 are simultaneously pressed to turn them on, and the on state is continued for a preset time, for example, about 5 seconds. As a result, the brightness adjustment start signal is supplied to the control circuit 22 via the AND circuit 15, the control circuit 22 reads the data for brightness setting from the memory circuit 16, and supplies it to the decoder 25 in the same manner as described above. As shown in FIG. 9, the display unit 13c for the first digit and the display unit 13 for the second digit
b, the numeral 8 is all displayed on the third digit display portion 13a, and the first digit display portion 13c is in a blinking state. Since the numeral 8 is to drive all the segments, that is, the light emitting diodes D1 to D7, by setting the luminance for the numeral 8, it is possible to prevent the variation in the luminance between the segments. The blinking of the display portion 13c of the first digit indicates that the brightness setting is first performed for the display portion 13c of the first digit, and after this state, the reset switch 12 and the auxiliary switch 14 are once turned off. As a result, the control circuit 22 comes to read the data for brightness setting from the memory circuit 16 corresponding to the reset switch 12.

Then, each time the reset switch 12 is pressed, the control circuit 22 reads out the data from the memory circuit 16 and supplies the data to the decoder 25 to change the brightness of the display section 13c stepwise, for example, in four steps. The light emission by each of the light emitting diodes D1 to D7 is performed by a so-called dynamic drive, and is performed by controlling the number of energizations per unit time. By repeatedly pressing the reset switch 12, the brightness of the display unit 13c is cycle-changed in four steps. Therefore, the brightness matching the surrounding environment and the conditions of the picker is selected, and the operation of the reset switch 12 is stopped. After setting the brightness of the display unit 13c of the first digit in this way, only the auxiliary switch 14 is pressed to turn it on, and the control circuit 22 sets the brightness of the display unit 13b of the second digit. The second digit display part 13b blinks,
When the reset switch 12 is pressed, the brightness changes in four steps as described above. Similar to the above, the optimum luminance is selected for the second digit display portion 13b, and then the auxiliary switch 14 is operated to shift to the third digit display portion 13a luminance setting.

It is necessary to store this data in the memory circuit 16 after the brightness setting of the display portions 13a to 13c is completed. In this case, the reset switch 12 and the auxiliary switch 14 are simultaneously pressed, for example, for about 1 second to switch the control circuit 22 to the storage operation. When the brightness setting data is stored in the memory circuit 16, the display units 13a to 13a.
The numeral 8 displayed on 13c goes out and the initial state is restored. The display device 11 shown in the present embodiment includes each display unit 1
The brightness of 3a to 13c can be selected and set according to the surrounding environment and the like, and data regarding the brightness can be stored and continuously displayed at a desired brightness. Therefore,
In the picking equipment to which the display device 11 is applied, the numbers are easy to see, and picking mistakes can be reduced.

Next, a third embodiment of the present invention will be described with reference to FIG. The difference between this embodiment and each of the above embodiments is that
This is because the display contents of the display units 13a to 13c are cleared with a desired time delay after the reset switch 12 is operated. Therefore, the same reference numerals are given to the parts that perform the same operations as described above, and the description thereof will be omitted. The programmable timer 17 divides a clock pulse (not shown) to set a delay time, and data such as a division ratio is a memory circuit 18 configured by an EEPROM.
Remembered in. The programmable timer 17
Can be incorporated in the control circuit 22, but is shown separately for convenience of explanation. In the configuration of this embodiment,
When the reset switch 12 is turned on, the control circuit 22 operates after a delay set by the programmable timer 17, for example, several seconds, and the display unit 13a.
Clear the numbers displayed in ~ 13c. Therefore, in the picking equipment 1 to which the display device 11 is applied, it is possible to reduce the picking mistake by checking the picking number by comparing the number of products picked after the operation of the reset switch 12 and the display.

The delay time of the programmable timer 17, that is, the clock pulse division ratio, is determined by the memory circuit 18.
The memory circuit 18 is stored in the EEP.
Since it is composed of a ROM, it is possible to set a desired delay time at any time, and it is set according to the work environment, the picker's ability, and the like.

[0027]

As described above, in the display device according to the present invention, the display section for displaying based on data, the control circuit for controlling the energization of the light emitting diodes forming the display section, and the control circuit are provided. Is provided with a reset switch for clearing the display by the display unit, and the control circuit controls the display of the display unit from the data display to another display in response to the first operation of the reset switch, and the next operation. It is configured to control display by data again. Therefore, a person who views the display device can reconfirm the display by the data as necessary, and can prevent a picking mistake when performing a work by the display, for example, picking of a product. Further, according to the display device, the reset switch and the auxiliary switch are provided, and the control circuit is switched to the brightness setting operation of the display section by operating both at the same time, and the brightness is changed stepwise by operating the reset switch. Further, after the desired brightness is selected, the reset switch and the auxiliary switch are simultaneously operated again so that the data of the selected brightness is stored in the memory circuit. It is possible to set a desired brightness setting according to the operator. Further, according to the display device, since the programmable timer is provided between the reset switch and the control circuit, the reset operation is performed after the delay time set by the programmable timer at the time of operating the reset switch, and during this delay time. You can check the display by data. Therefore, when the display device is applied to a product picking facility or the like, the display content can be compared with the picked product, and the reliability of the picking operation can be improved.

[Brief description of drawings]

FIG. 1 is a circuit diagram of a display device that is a first embodiment of the present invention.

FIG. 2 is a perspective view of a main part of picking equipment to which a display device is applied.

FIG. 3 is a side view of a main part showing a relationship between a display device and a product shelf.

FIG. 4 is a side view of a display device showing control of display contents.

FIG. 5 is a side view of a display device showing control of display contents.

FIG. 6 is a side view of a display device showing control of display contents.

FIG. 7 is a flowchart showing display control.

FIG. 8 is a circuit diagram of a display device showing a second embodiment of the present invention.

FIG. 9 is a side view of the display device showing the brightness setting.

FIG. 10 is a circuit diagram of a display device showing a third embodiment of the present invention.

[Explanation of symbols]

 1 Picking Equipment 2 Container 4 Product Shelf 6 Product 7 Booth 8 Picker 11 Display Device 12 Reset Switch 13a to 13c Display Unit 14 Auxiliary Switch 15 AND Circuits 16, 18, 23 Memory Circuit 17 Programmable Timer 21 Control Unit 22 Control Circuit 25 Decoder D1 ~ D7 light emitting diode

Claims (3)

[Claims] 1. Display units (13a) to (13c) that emit light when energized to display picking information, a reset switch (12) that clears the display of the display units (13a) to (13c), and a desired switch. According to the data, the display unit (1
3a) to (13c) are controlled to emit light, and the display of the display units (13a) to (13c) is changed to a display other than the display by the data by the first operation of the reset switch (12). A control circuit (22) for controlling and re-displaying the display by the data by the next operation of the reset switch (12), and further displaying when the next desired data is supplied. A picking display device (11) characterized by: 2. Display units (13a) to (13c) which emit light by energization to display picking information and display on the display units (13a) to (13c) corresponding to desired data, and energization The display section (13a) to (1
3c) a control circuit (22) for gradually setting the brightness,
The display section (13a) acting on the control circuit (22)
~ Reset switch (12) for clearing the display of (13c) and generating a setting signal for changing the brightness stepwise
When the reset switch (12) is operated at the same time, the control circuit (22) is switched to the brightness setting operation, the brightness is changed stepwise by the operation of the reset switch (12), and the desired brightness is selected again. The picking display device (11), further comprising: an auxiliary switch (14) for storing the data of the brightness selected by the simultaneous operation of 1. in the memory circuit (16) by the action of the control circuit (22). 3. Display units (13a) to (13c) that emit light when energized to display picking information, a reset switch (12) that clears the display of the display units (13a) to (13c), and a desired switch. According to the data, the display unit (1
A control circuit (22) for controlling the energization of 3a) to (13c) to emit light, and for clearing the display of the display sections (13a) to (13c) by operating the reset switch (12); It operates in response to the operation of the reset switch (12) and after a desired time delay, the control circuit (2
A picking display device (11) comprising: a programmable timer (17) for driving 2) to perform the clear operation.