JP2514714B2 - Product sales data processing device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a product sales data processing device such as an electronic cash register using a data input device capable of inputting product sales data from a keyboard and a scanner section. .

[Prior Art] Conventionally, for example, in electronic cash registers used in mass retailers such as supermarkets, a bar code attached to a product is provided separately from a keyboard for inputting the number of items sold or the amount of sale. There is a device that enables registration of a product for sale by connecting a bar code scanner for reading and reading the bar code attached to the product by the bar code scanner.

In such an electronic cash register, the central processing unit (CPU) as the control unit main body interrupts the corresponding key data processing when an arbitrary key of the keyboard is input and the key input data is taken in through the keyboard circuit. When the barcode is read by the barcode scanner and the read data from the scanner is fetched by the predetermined transmission means via the communication means, the corresponding scanner data processing is executed by interruption.

Therefore, the key input data input from the keyboard is immediately taken into the CPU for data processing, but the scanner read data input from the bar code scanner is taken into the CPU with a delay of the time required for communication (for example, 600 ms). Rarely then the data will be processed. For this reason, if you input a keyboard immediately after reading a barcode with a barcode scanner, the data from the keyboard will be captured in the CPU first, and the data from the keyboard will be read more than the data read by the scanner. Was sometimes processed first.

Therefore, the conventional electronic cash register could not prevent the following problems. For example, when registering a product to be discounted, the barcode of the product is read with a barcode scanner and then the discount rate is entered from the keyboard.If the discount rate is entered too quickly, the barcode will be read immediately before the product. Discount processing is performed on the selected product. Further, if the tightening operation performed by the input operation of the tightening key is too early, the product for which the barcode has been read last is not included in the total of the customer and is processed as the registered product of the next customer.

[Problems to be Solved by the Invention] As described above, in the conventional electronic cash register or the like having the keyboard and the barcode scanner as the data input means, the data input sequence viewed from the CPU side and the actual data input sequence May shift,
Wrong data processing may have been executed. Therefore, the operator needs to pay attention to the keyboard operation after the scanner operation, and the operability is poor.

Therefore, the present invention is intended to provide a product sales data processing device which can improve the operability of an operator without the risk of a data input sequence between a keyboard and a scanner being misaligned.

[Means for Solving the Problems] A product sales data processing device according to the present invention includes a data processing device main body for registering sales data of registered products in a memory,
Connected to this data processing device body via communication means,
In a merchandise sales data processing device comprising a keyboard and a data input device having an optical reading of a character or a bar code, the data input device stores each data input by one key operation of the keyboard and one reading operation of the scanner section. The data processing device main body is provided with a data storage unit that stores the length of the data in the input order in one buffer, and a data output unit that outputs the data stored in the buffer and the length of the data in the input order through the communication unit. Is a data reception control means for receiving output data from the data input device via the communication means, and whether the data received by the reception control means is key input data from the keyboard or scanner read data from the scanner section. Data judgment method that judges based on the length added to When, in which a data processing control means for executing data processing of the received data based on the determination result by the determining means.

[Operation] In the data input device of the present invention, since the data input from the keyboard or the scanner unit is accumulated in the input order and output in the accumulation order, the data input sequence from the keyboard or the scanner unit and the actual data input sequence There is no risk of slipping.

In the product sales data processing device using the data input device, since the key input data from the keyboard and the scanner read data from the scanner are transmitted using the same communication means, the product sales data processing is performed. There is no possibility that the data input sequence from the keyboard or the scanner unit is deviated from the actual data input sequence when seen from the device side.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 is an electronic cash register as a main body of a product sales data processing device, and 2 is a stationary bar code scanner 3 and a keyboard 4 for optically reading a bar code attached to a product. In the data input device, the electronic cash register 1 and the data input device 2 are connected by a predetermined communication means 5.

The data input device 2 includes a CPU 1 as a control unit body.
1, ROM12 that stores fixed data such as communication programs
Predetermined transmission between the RAM 13 having an input data buffer as a data storage means for storing the data input from the barcode scanner 3 and the keyboard 4 in the order of input, and the electronic cash register 1 via the communication means 5. Transmission control circuit 1 for controlling the data transmission performed in the procedure
4, a scanner control circuit 15 for taking in the read data in the bar code scanner 3 and a keyboard circuit 16 for taking in the key input data in the keyboard 4. The CPU 11, the ROM 12, the RAM 13, the transmission control circuit 14, the scanner control circuit 15, and the keyboard circuit 16 are connected via a bus line 17.

In the RAM 13, as shown in FIG. 3, in addition to the input data buffer 21 as the data storage means described above, the area 22 of the read pointer RP indicating the data reading position for the buffer 21 and the data writing to the buffer 21. An area 23 of the write pointer WP indicating the position is formed.

The input data buffer 21 is composed of a plurality of data storage areas, and the first 1 byte of each storage area stores a data length indicating the length of data.

As shown in FIG. 4, "00" is displayed on the keyboard 4.
In addition to the numeric keys 31 of "0" to "9", a plurality of department preset keys 32, subtotal keys 33, deposit / cash total keys 34, credit keys
35, multiply key 36, PLU (price look up) key 37, multiply key 38, discount key 39, clear key 40, premium key 41, discount key 42, etc. Used in normal electronic cash registers Various function keys are provided.

FIG. 5 is a block diagram showing the configuration of the electronic cash register 1, in which the CPU 51 as the control unit main body is
Bus line 52 with built-in arithmetic circuit, memory control circuit, etc.
ROM53, which stores programs for executing various tasks such as "registration", "payment", and "setting" via
A RAM 54 having a storage unit for cumulatively registering sales data of products registered for sale by a product registration operation, a clock circuit 55 for measuring the current time, and the data input device 2 via the communication means 5. Transmission control circuit 56 and I / O (input / output) for controlling data transmission performed according to a predetermined transmission procedure.
Output) port 57, keyboard circuit 58, display control circuit 59,
Controls each I / O port 60.

The I / O port 57 is connected with a mode switch 61 for controlling power on / off and for selecting the various business modes and informing the CPU 51 of their execution.

A keyboard 62 having the same keys as the keyboard 4 in the data input device 2 shown in FIG. 4 is connected to the keyboard circuit 62, and the key input data from the keyboard 62 is taken in. Has become.

The display control circuit 59 is connected with a display 63 for electronically displaying the price of the sold product or the total price,
The display 63 is drive-controlled to display and output display data such as numbers.

The I / O port 60 is connected to a printer drive circuit 65 of a printer 64 for printing receipts and the like, and a drawer opening device 67 of a drawer 66 for storing cash etc.,
A drive signal is output to each in response to a command from the CPU 51.

The CPU 11 of the data input device 2 is program-controlled so as to execute the processing shown in FIG. 6 in response to the turning on of a power source (not shown). That is, when the power is turned on, after initialization processing such as clearing the input data buffer 21 in the RAM 13 and initialization (= 1) of the read pointer RP and the write pointer WP in the areas 22 and 23, the bar code scanner 3 is performed. Alternatively, the presence or absence of input data from the keyboard 4 is monitored. Then, the scanner control circuit 15
When the scanner read data is fetched from the bar code scanner 3 via, the data length of the scanner read data is first stored in the first byte of the corresponding area of the input data buffer 21 designated by the write pointer WP, and then the same. The scanner read data is stored in the area.
Then, the write pointer WP is updated by "+1", and the process returns to the input data presence / absence determining process.

On the other hand, the keyboard 4 is connected via the keyboard circuit 16.
Even when the key input data is fetched, the data length of the key input data is first stored in the first byte of the relevant area of the input data buffer designated by the write pointer WP, and then the scanner read data is stored in the same area. To store. However, in this embodiment, the key input data is 1
Bytes and data length are all [01]. Then, the write pointer WP is updated by "+1", and the process returns to the input data presence / absence determining process.

Further, when it is detected that data is input to the input data buffer 21 in a state where there is no input data from the barcode scanner 3 or the keyboard 4, it is determined that transmission data exists. Then, first, the data length and the data are extracted from the corresponding area of the input data buffer designated by the read pointer RP and transmitted to the electronic cash register 1 through the transmission control circuit 14 in a predetermined transmission procedure. Thereafter, the read pointer RP is updated by "+1", and the process returns to the input data presence / absence determining process.

The write pointer WP and the read pointer RP
When the write pointer WP and the read pointer RP exceed the number of areas of the input data buffer 21 in the update processing of (1), they are automatically initialized to "1".

On the other hand, when the CPU 51 of the electronic cash register 1 receives the data transmitted from the data input device 2 through the transmission control circuit 56 in a predetermined transmission procedure, it is program-controlled to execute the processing shown in FIG. ing. That is, when it is determined that data has been received from the data input device 2, the data length of the first byte of the received data is checked. When it is confirmed that this data length is 1-byte data [01], it is determined that the received data is the key input data of the keyboard 4 of the data input device 2, and the key input data of the keyboard 62 is input. The same key data input processing as in the case is executed.

On the other hand, when it is confirmed that the data length is other than 1-byte data, the received data is the data input device 2
It is determined that the data is the scanner read data of the barcode scanner 3 in the above, and the scanner data input processing similar to the conventional one is executed.

In the thus-configured data input device 2 of the present embodiment, when a barcode reading operation is performed by the barcode scanner 3, the scanner read data at that time is input data buffer 21 together with the data length.
It is stored in the area designated by the write pointer WP. When various keys are input by the keyboard 4, the key input data at that time is stored together with the data length [01] in the area designated by the write pointer WP of the input data buffer 21. Therefore,
The data input from the barcode scanner 3 and the keyboard 4 is stored in the input data buffer 21 in the input order regardless of the data input destination. Then, the data stored in the input data buffer 21 is transmitted to the electronic cash register 1 in a predetermined transmission procedure via the communication means 5 in the storage order, that is, the input order.

On the other hand, in the electronic cash register 1 that has received data from the data input device 2 via the communication means 5 in a predetermined transmission procedure, the received data is the scanner read data by the bar code scanner 3 from the data length of the received data. Or key input data from the keyboard 4 is determined, and data processing corresponding to the determination result is executed. Therefore, there is no possibility that the data input sequence in the barcode scanner 3 and the keyboard 4 and the actual data input sequence processed by the electronic cash register 1 are deviated.

As a result, for example, when registering a product to be discounted, the operator scans the barcode of the product with the barcode scanner 3
Immediately after reading with
And the discount key 42 to input the discount rate. However, no matter how fast the discount rate is entered, the discount process will be performed on the product whose barcode is read immediately before the product. No trouble will occur. In addition, no matter how fast the tightening operation is performed by the input operation of the deposit / cash total key 34, the credit key 35, the multiplying key 36, etc. on the keyboard 4, the product whose barcode is read last will be the one of the customer. It will not be included in the total and will not be processed as a registered product for the next customer. In this way, the data input device 2
Since the operator who operates the scanner does not need to pay attention to the keyboard operation after the scanner operation, the operability is excellent.

Although the same keys as the keyboard 62 of the electronic cash register 1 are arranged on the keyboard 4 of the data input device 2 in the above-mentioned embodiment, a problem may occur when the data input sequence deviates from the data read by the scanner. Data input device 2 only for keys that generate key input data
The effect of the present invention can be sufficiently exerted only by disposing it on the keyboard 4. A data input device using an OCR (optical character reading device) that optically reads characters instead of the barcode scanner 3 may be used.

Further, it goes without saying that the data input device 2 of the present invention can be connected to a terminal in a POS (point of sale information management) system through a communication means.

[Effects of the Invention] As described in detail above, according to the present invention, key input data from a keyboard and scanner read data from a scanner unit can be quickly captured and processed without a data input sequence shift. It is possible to provide a product sales data processing device that can improve the operability of the operator.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of the present invention, FIG. 1 is a schematic diagram showing the overall schematic configuration, FIG. 2 is a block configuration diagram of a data input device, and FIG. 3 is a RAM of the data input device. Main memory configuration diagram, FIG. 4 is a key arrangement diagram of a keyboard in the data processing device, FIG. 5 is a block configuration diagram of an electronic cash register, FIG. 6 is a flow chart showing the operation of the data processing device, and FIG. 6 is a flowchart showing the main operations of the electronic cash register. 1 ... Electronic cash register (main unit of product sales data processing device), 2 ... data input device, 3 ... bar code scanner, 4 ... keyboard, 21 ... input data buffer.

Claims (1)

(57) [Claims] 1. A data processor main body for registering sales data of registered merchandise in a memory, and a scanner unit connected to the data processor main body via a communication means for optically reading a keyboard and characters or a bar code. In the merchandise sales data processing device including a data input device having: a data input device, each data input by one key operation of the keyboard and one reading operation of the scanner unit is stored in one buffer together with the length of the data. The data processing device main body comprises: a data storage unit that stores data in the order of input; and a data output unit that outputs the data stored in the buffer and the length of the data in the order of input through the communication unit. Data reception control means for receiving output data from the data input device via Data determining means for determining whether the data received by the reception controlling means is the key input data from the keyboard or the scanner reading data from the scanner section based on the length added to the data, and the determining means. A product sales data processing device comprising: a data processing unit that executes data processing of the received data based on a determination result.