JPH0339253B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a load cell type electronic scale.

Generally, as shown in FIGS. 1 and 2, this type of electronic scale has an electronic scale main body 1 that includes a double-sided display section 2 and a weighing plate 3 on which items are placed.
and a keyboard 4 having a numeric keypad, etc., and is often placed on top of a case 5 or the like. In this case, the keyboard 4 is set at a position, angle, etc. that is easy for an operator such as a salesperson to use at the shop side E _IN . However, in recent sales formats, sales are not limited to cases in which sales staff sell products in the in-store area E _IN , but also often in outside areas such as storefronts (outside the store case 5). When using an electronic scale in such a case, the inside area of the store should be
Since only E _IN is within the keyboard 4 usable range,
The salesperson must always return to the store area E _IN to operate the keys, which is inconvenient and does not result in an expansion of the sales format.

For this reason, the applicant has already proposed a device that allows the range of use to be expanded without limiting the directionality of key operations. That is, as shown in FIGS. 3 and 4, a remote keyboard 6 with a size that can be held in the hand and which has the same key group as the main keyboard 4 (numeric keypad, erase key, tare key, zero key, etc.) is used, for example, with a length of 1 m. It is connected to the electronic scale body 1 via a cable 7. In block terms, as shown in FIG. 5, a remote keyboard 6 is removably connected to a connector 10 via a cable 7 to an electronic scale main body 1 having a scale section 9, a display section 2, and a main keyboard 4 to a calculation section 8. However, the configuration is such that input from this remote keyboard 6 is also input to the arithmetic unit 8.

According to this, inside the show case 5, that is,
When used by a salesperson in the store area E _IN , the main keyboard 4 can be used to perform key operations such as unit price setting and weighing operations in the same manner as before, and results such as weight and price are displayed on both sides on the display section 2. , shown to both salespeople and customers. On the other hand, when used by a salesperson outside the shop case 5, that is, in the outside area E _OUT , the unit price, etc. can be entered using the remote keyboard 4, and the electronic scale can be used while in the outside area E _OUT . can be used. In other words, the scope of use of the electronic scale is the area in the store where the main keyboard 4 is used.
It has been expanded so that it can be used not only in one side of E _IN but also in the outside area E _OUT (see the shaded area in Figure 4) due to the length of the cable 7, improving operability and making it easier to use in over-the-counter sales, etc. It can be used to defecate. It should be noted that there is no problem in checking the display contents or placing the item on the display because the display section 2 and the placing plate 3 are not unidirectional.

However, when two keyboards, the main keyboard 4 and the remote keyboard 6, are provided in this manner, errors may occur in key inputs. For example, in a case where there is a salesperson A who is trying to input a unit price of 100 yen using the main keyboard 4 and a salesperson B who is trying to input a unit price of 200 yen using the remote keyboard 6, salesperson A is using the main keyboard ``1'' on numeric keypad 4
If salesperson B enters "0" and then enters "2" using the numeric keypad on the remote keyboard 6, the value "102" will be set and displayed as the unit price inside the electronic scale and on the display section 2. , salesperson A, and salesperson B will end up inputting values that are different from the values they were trying to input. In addition, even though Salesperson A sets the unit price using the main keyboard 4 and the measurement is in progress, Salesperson B uses the remote keyboard 6 to rewrite the unit price set by Salesperson A, or It may also cause it to be cleared.

The present invention has been developed in view of these points, and while taking advantage of the expansion of the range of use by adding a remote keyboard, it is easy to select between both keyboards, prevents erroneous operations, and always performs accurate key input. The purpose is to obtain an electronic scale that can be used for

The present invention provides a remote keyboard as well as a main keyboard, and provides means for determining key inputs from both keyboards, and means for prioritizing so that only the keyboard on which key input was first made is valid. The selectivity of both keyboards is improved by eliminating the confusion of key inputs on both keyboards based on the order, and by providing a means for determining the weighing completion state of the scale and a means for canceling the priority order based on this weighing completion state. Furthermore, by providing a means for invalidating the priority order even if a specific key is operated in this measurement completion state, the structure is configured so that the priority order is not set when unnecessary.

An embodiment of the present invention will be described based on FIGS. 6 to 11. The same parts as those shown in FIGS. 3 to 5 are indicated using the same reference numerals. First, in Fig. 6, the main keyboard 4 is set to "0" ~
Numeric keypad 10M with “9” and “wind” for clearing the tare weight
The remote keyboard 6 is composed of a tare key 11M, an erase key 12M for clearing the set unit price, a zero key 13M for zero point correction, and a plurality of function keys 14M. Numeric keypad 10R, tare key 11
R, an erase key 12R, a zero key 13R, and a function key 14R. Here, tare keys 11M, 11R, erase key 12M,
12R and zero keys 13M and 13R are specific keys. And these keyboard 4,
6, the input ports 15 K0 to K3 are shared, but the output ports are independent, with output ports 16M R0 to R4 for the main keyboard 4 and R5 to R for the remote keyboard 6.
The key input determining means 17 is divided into nine output ports 16R. Next, a priority setting means 18 is provided which prioritizes the keyboards based on this determination means 17, depending on which key on the main board 4 or the remote keyboard 6 is pressed first. Further, there is provided a weighing end determining means 19 for determining the weighing end state of the scale, that is, whether the item has been removed from the scale and the scale has returned to the zero point.
Priority order cancellation means 20 is provided for canceling the priority order set by the priority means 18 in response to a measurement end signal from 9. Further, even if a specific key such as the tare key 11 is pressed in a state where it is determined that the scale is at the zero point based on this weighing completion determination means 19, the priority order is disabled so that the priority order is not assigned. Priority order invalidity determining means 21 is provided for determining priority order invalidity.

In such a configuration, the electronic scale performs processing according to a basic flowchart as shown in FIG. That is, after key input, key processing is performed, data is input, and calculations and output are performed while checking the scale status. Here, the "key input" is processed under the determining means 17 and the priority setting means 18 according to the flowchart of FIG.
That is, after the power is turned on, the calculation unit 8 is ready to accept input from either the main keyboard 4 or the remote keyboard 6, and if any key is pressed now, it will be input from the main keyboard 4. It is determined from the output ports 16M and 16R whether it is an input or an input from the remote keyboard 6, and for example, "1" is input on the main keyboard 4.
If the numeric keypad 10M is pressed, priority is given to the main keyboard 4 side, and key inputs from the remote keyboard 6 are prohibited from now on at the time of this key input. Then, a key input of "1" is converted into a key matrix and returned. Next, when the numeric keypad 10M "0" is pressed on the main keyboard 4, the main keyboard 4 is already in the priority state, so after checking that the input is from the main keyboard 4, key matrix conversion is performed.
Subsequently, when the user presses the numeric keypad 10M "0", the same process is performed, and as a result, a unit price of, for example, "100 yen" is set using the main keyboard 4. In this operation, even if keys on the remote keyboard 6 side are operated, since the main keyboard 4 side is in a priority state, the input is prohibited and will not be accepted. On the other hand, if the key pressed first is a key on the remote keyboard 6, this remote keyboard 6
Priority is given to each side, and only unit price settings etc. using the remote keyboard 6 are valid.

7 is processed by the weighing completion determining means 19 and the priority order canceling means 20 according to the flowchart shown in FIG. 9. In other words, once the item is removed from the scale and the scale returns to the zero point, it is assumed that the weighing operation after determining the priority is completed, and no matter which priority is set, that priority is is automatically released and returns to the standby state, that is, the state before the flowchart of FIG.

Furthermore, the "key processing" in FIG. 7 does not give priority, that is, it judges whether the condition should be invalidated or not, and is processed according to the flowchart in FIG. 10. That is, a zero key 13, a tare key 11, and an erase key 1 as specific keys.
2, for example, zero key 13
(The same applies to zero keys 13M and 13R on the main keyboard 4 and remote keyboard 6) is pressed, and if the scale has returned to the zero point after the measurement is completed and the unit price has not been set,
Key inputs from the zero key 13 are disabled without prioritization, and inputs from both keyboards remain enabled. Tare key 1
The same is true for 1, and under the condition that it is the zero point after measurement and the unit price is not set,
Priority is not assigned by operating this tare key 11. Furthermore, no priority is given to the erase key 12 under the zero point condition after measurement. The reason why such key processing is necessary is that even if the priority order is automatically canceled when the scale returns to the zero point after measurement is completed, there are operational problems. For example, if you press the erase key 12M on the main keyboard 4 to clear the previously set unit price when the scale is at zero point, the electronic scale will be prioritized even though it is not in the weighing state at this point. This is because only the main keyboard 4 becomes valid, and key input from the remote keyboard 6 may not be accepted. This situation also applies to the tare key 11 and the zero key 13. Therefore, this "key processing" disables the tare key 11, erase key 12, and zero key 13 so that they are not prioritized when the weighing is clearly not in progress, that is, when the scale is at the zero point. . In this case, the tare key 11,
The condition is that no unit price is set for the zero key 13. Then, if a key operation other than a specific key such as the numeric keypad 10 or tare key 11 for setting the unit price, or a key operation when the scale is not at zero point even if the key is a specific key, weighing will start from now. It is determined that the keyboard is in the middle of weighing or is in the middle of weighing, priority is assigned or maintained as shown in FIG. 8, and only one of the keyboards can be used.

Note that since the salesperson operates the keys on the main keyboard 4 and the remote keyboard 6 in different locations, the display section is designed to indicate which keyboard is currently being used so that the salesperson can easily determine which keyboard is currently being used. 2 is provided with an indicator lamp 22 for the main keyboard 4 and an indicator lamp 23 for the remote keyboard 6, as shown in FIG. That is, when input is possible using either the main keyboard 4 or the remote keyboard 6, the display lamps 22 and 23 are both lit, while the main keyboard 4 is in use, only the display lamp 22 is lit, and while the remote keyboard 6 is in use, only the display lamp 23 is lit. will light up to indicate the status.

As described above, the present invention includes a remote keyboard as well as a main keyboard, means for determining key input from both keyboards, means for prioritizing only the keyboard on which a key input was made as valid, and a weighing completion state of the scale. , a means for canceling the priority according to the measurement completion state, and a means for invalidating the priority by a specific key operation in this measurement completion state, so that priority determination - measurement - priority By repeating the release of , both keyboards can be selected arbitrarily, and the use of the other keyboard is not prohibited due to unnecessary priority, and in the end, the advantages of using both keyboards together can be maximized. It is something that can be demonstrated.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a conventional example, Fig. 2 is a plan view thereof, Fig. 3 is a perspective view showing the contents of an existing proposal, Fig. 4 is a plan view thereof, Fig. 5 is a block diagram, and Fig. 6 is a A block diagram showing one embodiment of the present invention, FIGS. 7 to 10 are flowcharts, and FIG. 11 is a front view of the display section. 1...Electronic scale body, 4...Main keyboard,
6...Remote keyboard, 17...Discrimination means,
18...priority setting means, 19...metering completion determining means, 20...priority canceling means, 21...priority invalidity determining means.

Claims (1)

[Claims] 1. A remote keyboard connected to an electronic scale body equipped with a main keyboard and having the same key group as the main keyboard, means for determining key inputs between the main keyboard and the remote keyboard, and a keyboard on which key input was previously performed. a means for prioritizing the keyboard so as to only enable the weighing device; and a means for determining the weighing completion state of the scale;
An electronic scale comprising means for canceling the priority order in this weighing completed state, and means for invalidating the priority order by operating specific keys on both keyboards in this weighing completed state.