JPH0562073A - Product data processing device - Google Patents

Abstract

(57) [Abstract] [Purpose] When the main power is turned on, the anxiety caused to the operator by the non-responsiveness of the display unit when the contact changeover type switch is not properly switched is eliminated. [Structure] Whether or not a predetermined contact is properly connected is determined by switching the contact switching type switches 7 and 8 by a switch state determination means, and the contact is not correctly connected when the main power is turned on. When the switch state determination means determines, the message means causes the display unit 3 to display a message to that effect. This allows
The operator is given a sense of security and a suggestion that the switches 7 and 8 should be properly switched.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a product data processing device for collecting data on products and performing a predetermined process, and more particularly to a product data processing device having a display section and a contact switching type switch.

[0002]

2. Description of the Related Art Conventionally, a product data processing device, that is,
Various devices for collecting data on products and performing a predetermined process have been put into practical use, and as examples thereof, electronic fee scales, electronic cash registers, POS systems, etc. are widely spread. In such a product data processing device, generally, a display unit for displaying product sales data, registration data, etc. is provided integrally or separately, and a contact switch type switch such as a key switch or a slide switch is provided on the device main body side. Is provided.

Here, the key switch is a switch for switching the operation mode in the main body of the apparatus such as sales, registration, and settlement, and the one having a structure which is operated by rotating the inserted key is widely used. The slide switch is a switch operated to specify, for example, issuing a label or stopping the label.

[0004]

Although it is necessary to turn on the main power source in order to make the apparatus main body ready for use, the main body power source does not immediately become ready for use, but for the start-up operation. It requires a certain amount of time. At this time, for example, in an electronic toll scale or the like, in order to inform the operator that the startup operation is in progress, to give a sense of security,
Generally, the structure is such that a predetermined display is displayed on the display unit immediately after the main power is turned on until the start-up operation is completed. Here, as the predetermined display on the display unit, for example, blinking display of the same number of a plurality of digits is repeated in the order of 0 to 9, and the like.

However, in the display of the display section showing that the startup operation is being performed, contact switches such as a key switch and a slide switch are accurately switched,
Usually, the structure is made on the assumption that predetermined contacts are accurately connected. For this reason, when the switching operation part of the switch stays between the click parts that securely connect the contacts to each other and the contacts are not connected, that is, when the switches cannot be accurately switched, no indication is displayed on the display unit. If the main switch is not turned on, the operator may be misunderstood as if the main switch is not turned on or if the device is out of order, and the operator may feel uneasy.

[0006]

The present invention is provided with a display section for displaying predetermined information and a contact changeover type switch for switching operation modes and the like, and by switching this switch, predetermined contact points are switched. A switch state determination means for determining whether or not the contacts are properly connected is provided, and when the switch state determination means determines that the contacts are not correctly connected when the main power is turned on, the display section displays A message display means for displaying a message is provided.

[0007]

Therefore, when the switch state determination means determines that the contacts of the contact changeover switch are not properly connected when the main power source is turned on, the message display means displays the fact on the display section. This allows
Even if the switch is not in the correct switching state,
The operator is informed that the main power supply has been turned on, that the display unit has no failure, etc., and that the operator is informed that the switch should be properly switched. Here, when the switch is not in the correct switching state, the switching operation part of the switch does not fit in the click part of the switch that surely connects the contacts to each other, and remains at the midpoint between the click part and the click part. This is the case.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. In the present embodiment, an example of an electronic charge balance is shown as the product data processing device. As illustrated in FIG.
The electronic charge balance 1 is composed of a flat casing-shaped main body 2 and a display portion 3 standing upright from the rear end of the main body 2.

The balance main body 2 has a scale plate 5 connected to the scale unit 4 which is a load cell scale on the upper surface thereof, and a keyboard 6, a key switch 7, a slide switch 8 and a thermal unit on the inclined front face thereof. A receipt issuing port 10 connected to a printer 9, which is a printer, is provided.

Next, the electrical connection of each part is shown in the block diagram of FIG. First, the CPU 11 that intensively performs various processes
The CPU 11 is connected with a ROM 12 for storing fixed data such as an operation program and a RAM 13 for storing rewritable variable data, and the A / D converter 1
The scale unit 4 is connected via the unit 4. The display unit 3, the keyboard 6, the key switch 7, the slide switch 8 and the printer 9 are also connected to the CPU 11 via an I / O block 15.

In the key switch 7, the contact (not shown) is switched when the inserted key (not shown) is rotated, and the operation mode of the CPU 11 is changed to sales, registration, settlement, etc. by this switching. It is a thing. Further, the slide switch 8 has a structure in which the contact 16 is switched by sliding, and the operation mode of the CPU 11 relating to the printer 9 such as receipt issuance and its stop is changed by this switching.

Here, the contact 1 of the slide switch 8
The connection structure of 6 is shown in the block diagrams of FIGS. 3 and 4. That is, the slide switch 8 has a, b, c, d, e
5 contacts 16a to 16e are provided, and the contacts 16b and 16c are connected. On the other hand, the I / O block 15 connected to the CPU 11 through a data bus, an address bus, etc., has three inputs 15 of A, C, and D.
Outputs 15B called A, 15C, 15D and B are provided. Then, the contact 1 on the slide switch 7 side
6a is connected to the input 15A on the I / O block 15 side, the contact 16c is the output 15B, and the contact 16d is the input 15A.
The contact 16e is connected to C, and the contact 16e is connected to the input 15D. Then, by switching the slide switch 8, the contact 16a and the contact 16c are connected, the contact 16b and the contact 16d are connected, and the contact 16c and the contact 16e are connected. The slide switch 8 is configured so that a connection mode can be obtained.

In such a structure, by inserting a key (not shown) into the key switch 7 and rotating the key,
A desired operation mode such as sales, registration, and settlement is selected.

In the sale mode, the weight of the product placed on the weighing pan 5 is weighed by the weighing unit 4, and the light weight value is displayed on the display unit 3. At this time, the PLU number (PL
(U is an abbreviation for Price Look Up) is input from the keyboard 6 so that data such as the price and unit price of the product is also displayed on the display unit 3. When the slide switch 8 is switched to the receipt issuing mode, the data relating to the products weighed by the weighing unit 4 is printed on the recording paper (not shown) by the closing process with the keyboard 6, and the receipt issuance port as a receipt. Issued from 10. In addition, in the registration mode, PLU data is registered by operating the keyboard 6, and in the payment mode, it is used for payment processing of sales data for a certain period. The PLU data is in RAM
It is stored in 13 and is configured so that predetermined PLU data can be called by operating the keyboard 6.

On the other hand, the electronic charge balance 1 is provided with a main power supply switch (not shown), and the main power supply is turned on by turning on the main power supply switch. At this time, a certain time is required for the start-up operation, but the states of the key switch 7 and the slide switch 8 are checked before the start-up operation is started. The flow of such a check operation is shown in the flowchart of FIG.

First, when the main power switch is turned on and the power is turned on, in step 1, C
The switch state determination bit is turned on and off in the PU 11. Table 1 shows a switch switch 8 as an example of the switch state determination bit. In Table 1, the bits relating to the contacts 16a, 16d, 16e of the slide switch 8 are set as a, d, e, and I, respectively, in order.
It is judged from the states of the inputs 15A, 15C and 15D on the / O block 15 side. Specifically, the slide switch

[0017]

[Table 1]

When the switch 8 is in the switching state shown in FIG. 3, since only the contact 16a is connected to the contact 16c, only the bit a is turned on. Further, in the state of, since only the contact 16d is connected to the contact 16c, only the bit d is turned on, and in the state of the contact 16c.
However, since only the contact 16e is connected, only the bit e is turned on. That is, when the slide switch 8 is properly switched, only one bit is turned on in any of the switching states of ,. Therefore, when two or more bits are turned on or when all the bits are turned off, it means that the slide switch 8 is not properly switched. FIG. 4 shows the state of the contact 16 in such a case. In FIG. 4, when the switching state of the slide switch 8 is in the state of, three of the contacts 16a, b, d are connected, and in the state of, none of the contacts 16 are connected. Table 2 shows the states of the switch state discrimination bits corresponding to these states and. As is clear from Table 2, two bits a and d are turned on in the state of, and none of the bits are turned on in the state of. Although the switch state determination bit for the slide switch 8 is illustrated here, the switch state determination bit for the key switch 7 has the same structure except for the difference in the number of bits based on the difference in the number of contacts.

[0019]

[Table 2]

Therefore, in step 2, the CPU 11 confirms the state of the switch state determination bit to determine whether the slide switch 8 is properly switched. That is, in each state, it can be understood that the switching state is normal if only one bit is turned on, and the switching state is abnormal in other cases. Therefore, in these Step 1 and Step 2, the switch state determining means is configured.

Next, in step 3, when the switch state discrimination means detects that the state of the switch state discrimination bit is normal, the operation proceeds to the start-up operation, and the state of the switch state discrimination bit is abnormal. If detected, the process moves to the process of displaying a message on the display unit 3. That is, when the state of the switch state determination bit is abnormal, the CPU 11 calls from the RAM 13 the coded message data indicating that the switch switching state is not appropriate, and this data is the I / O block 1.
5 is formed and stored as image data in a display buffer (not shown) connected between the display unit 3 and the display unit 3, and the image data is displayed on the display unit 3. As the message data, even if a code such as "S", "SET", "SWIT"
It may be a word such as “CH” or a word such as “please switch properly”, and for example, one according to the characteristic of the display unit 3 is selected. Here, the message displaying means is constituted by the step 3.

However, when it is detected in step 3 that the state of the switch state determination bit is abnormal, the display unit 3
After displaying the message code in step 1, the process returns to step 1 and the same operation is repeated until the state of the switch state determination bit becomes normal. Therefore, in this embodiment, even if the key switch 7 or the slide switch 8 is not in the correct switching state after the main power is turned on and before the start-up operation,
Since a message to that effect is displayed on the display unit 3, the operator is informed that the main power supply has been turned on, that there is no abnormality in the CPU 11, the display unit 3, etc., and the anxiety is eliminated. It Moreover, since the operator is informed that the key switch 7 and the like should be properly switched, the operator is clearly informed of the subsequent operation procedure, and confusion after the power is turned on is avoided.

Although the present embodiment is applied to the electronic charge balance, it may be applied to an electronic cash register, a POS system or the like.

[0024]

According to the present invention, the switch state determining means determines whether or not a predetermined contact is properly connected by switching the contact changeover type switch, and the contact is properly connected when the main power is turned on. If it is determined by the switch state determination means that it is not,
Since it is configured to display that fact on the display unit by the message means, even if the switch is not correctly switched when the main power is turned on, the main power is turned on, the display unit, etc. It is possible to indicate to the operator that there is no malfunction, etc., and therefore give the operator a sense of security, and it is possible to display that the switch should be switched correctly, and therefore, the operator is required to operate correctly. The procedure is shown, and it is possible to avoid unnecessary confusion after the main power is turned on.

[Brief description of drawings]

FIG. 1 is a block diagram of electrical connection of each part showing an embodiment of the present invention.

FIG. 2 is a perspective view showing an external configuration of the entire apparatus.

FIG. 3 is a block diagram showing a connection of respective contacts corresponding to a switching state when the switch is properly switched.

FIG. 4 is a block diagram showing a connection of respective contacts corresponding to the switching state when the switch is not properly switched.

FIG. 5 is a flowchart showing a flow of operations from turning on of a main power source to completion of a startup operation.

[Explanation of symbols]

 3 Display 7, 8 switches 16 contacts

Claims (1)

[Claims] 1. A display unit for displaying predetermined information, and a contact changeover type switch for switching operation modes,
Switch state determination means for determining whether or not a predetermined contact is properly connected by switching the switch, and that the contact state is not correctly connected by the switch state determination means when the main power is turned on. A product data processing apparatus, comprising: a message display means for displaying a message to that effect on the display unit when the product data is determined.