JPH0750490B2 - POS system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention is provided with a plurality of file controllers for connecting a plurality of terminals, collecting sales data from each of the terminals, and registering the sales data in a memory file. Related to POS system that controls high-end equipment.

[Prior Art] Conventionally, in this type of POS system, each file controller is individually and independently connected to the above-mentioned device, and individually managed by the above-mentioned device.
When the file controller goes down, when the host device controls the file controller, the down state can be grasped.

[Problems to be Solved by the Invention] However, if the down state of the file controller can be grasped for the first time when the device controls the fail controller as described above, there is a delay in grasping the down state. However, there was a problem that the terminal could not be operated during that time because proper measures could not be taken promptly, hindering the registration of product sales data.

In view of this, the present invention uses two file controllers as a set to monitor each other's down and notifies the host device immediately when the other party is in a down state, so that the file controller can be down properly and quickly. It aims to provide a POS system that can deal with it.

[Means for Solving Problems] The present invention is a file controller for inputting and processing product sales data, connecting a plurality of terminals for issuing receipts, collecting sales data from each of the terminals, and registering the sales data in a memory file. In a POS system in which multiple file controllers are installed and each file controller is controlled by a higher-level device, each file controller is directly connected by a line as a set of two, and each file controller registers its own sales data. The memory file, the memory file for the other party that registers the sales data transmitted from the other side via the line, the transmission buffer that temporarily stores the data when the sales data is transmitted to the other side, and the transmission buffer becomes full. The down status that detects the fact that the other side is down and notifies the higher-level device The state notification means is provided.

[Operation] In the present invention having such a configuration, when sales data is collected from a terminal to which one of two file controllers is connected, the sales data is registered in the own memory file. . Further, the sales data is transmitted via the transmission buffer to the other file controller on the other side through the line. The other file controller registers the received sales data in the other memory file for backup.

However, at this time, if the other file controller goes down, the sales data in the transmission buffer cannot be transmitted to the other side, so that the transmission buffer becomes full soon. Then, one file controller detects that the transmission buffer is full, determines that the other side is down, and notifies the upper device of that fact. Therefore, the host device can accurately and promptly know from the notification from one file controller that the other file controller has gone down.

Embodiments Embodiments of the present invention will be described below with reference to the drawings.

1. In FIG. 1, reference numerals 1 ₁ , 1 ₂ , 1, _{3 3} , 1 ₄ , ... Are file controllers (FC), and each of these file controllers 1 ₁ , 1 ₂ , 1, ₃ 1, 1 ₄ ,.
N terminals (T / M) 3 ₁₁ , 3 ₁₂ … 3 _1n , 3 ₂₁ , 3 ₂₂ … 3 _2n , 3 ₃₁ via loop lines 2 ₁ , 2 ₂ , 2, ₃ 2, 2 ₄ ,. , 3
₃₂ ... 3 _3n , 3 ₄₁ , 3 ₄₂ ... 3 _4n , ... are connected.

Each of the file controllers 1 ₁ , 1 ₂ , 1, ₃ 1, 1 ₄ , ... Is in-line connected to a store controller (SC) 4, which is a host device.

The file controller 1 ₁ and 1 ₂ and 1 ₃ and 1 ₄ constitutes a pair, respectively, are connected directly by a dedicated line 5,6 respectively.

Each of the above terminals 3 _{11 to} 3 _1n , 3 _{21 to} 3 _2n , 3 _{31 to} 3 _3n , 3 ₄₁
~ _34n is equipped with, for example, a keyboard, a display, a printer, a memory for data processing, and a microprocessor.The product sales data input from the keyboard is registered in the memory, for example, by division, and is displayed on the display, and the printer I'm trying to print it out. Also, the product sales data is transmitted as sales data to the corresponding file controller. Further, when the product sales data for one customer is completed and the closing operation is performed on the keyboard, the total is printed out and a receipt is issued.

The terminal processing performed in this manner is well known in the art.

As shown in FIG. ₂ , the file controllers 1 ₁ , 1 ₂ , 1, ₃ and 1 ₄ include a CPU 11 which constitutes a control unit main body, and a ROM 1 which stores program data for the CPU 11 to control each unit.
2, RAM 13, terminal transmission controller 14, store controller transmission controller 15 and file controller interface 16 are provided, and these are connected to the bus line.
Connected by 17.

As shown in FIG. 3, the RAM 13 has a self-use memory file 13a for registering sales data from each terminal belonging to itself, for example, to store sales data transmitted from the other side of the set. There is provided a memory file 13b for the other party to be registered in, a transmission buffer 13c for temporarily storing the sales data transmitted to the other side, a receiving buffer 13d for temporarily storing the sales data transmitted and received from the other side, and the like.

The terminal transmission controller 14 is controlled by the CPU 11 and controls transmission / reception of data via the loop line with each terminal to which it belongs. The store controller transmission controller 15 is controlled by the CPU 11 to perform data transmission control in-line with the store controller 4. The file controller interface 16 is connected to the other file controller via a dedicated line.

A program is set in the ROM 12 of the file controllers 1 ₁ , 1 ₂ , 1 ₃ and 1 ₄ so as to perform the processing shown in FIG. That is, when the sales data is received from the terminal, the sales data is filed, that is, registered in the self-use memory file 13a. Then, it is checked whether or not the transmission buffer 13c is full, and if it is not full, the sales data is stored in the transmission buffer 13c,
Send to the other file controller via the interface 16.

If the transmission buffer 13c is full, it is determined that the file controller on the other side is down, and a notification message is created and transmitted to the store controller 4.

When the sales data is received from the partner file controller, the sales data is temporarily stored in the reception buffer 13d and then registered in the partner memory file 13b.

Thus in this embodiment of a structure, for example, file controller 1 ₁ receives the sales data from each terminal 3 ₁₁ to 3 _1n registered self memory file 13a, and temporarily stored in the transmission buffer 13c and it transmits the file controller 1 ₂ is a counterpart via the line 5 from. File controller 1 ₂ sales data received in backing registered opponent memory file 13b.

File controller 1 ₂ conversely receives sales data from each terminal 3 ₂₁ to 3 _2n registered self memory file 13a, and is at the other side through the line 5 from the temporarily stored in the transmission buffer 13c Send to file controller 1 ₁ . File controller 1 ₁ sales data received in backing registered opponent memory file 13b.

In this way, two file controllers form one set and back up each other.

In such operation, for example, the file controller 1 ₂
There comes down, you can not receive the sales data from the file controller 1 _1. Thus now accumulated sales data in the transmission buffer 13c of the file controller 1 _1, soon becomes full. Thus file controller 1 ₁ knows that down file controller 1 ₂ is the full transmission buffer 13c, create and send Denbun to inform the to the store controller 4.

In this way, the store controller 4 becomes a file controller.
I know that the news from 1 ₁ file controller 1 ₂ is down, informed by this fact to the operator for example, a display or notification, or the like.

Thus immediately so measures against down file controller 1 ₂ is taken. That is, it is possible to properly and promptly deal with the failure of the file controller.

[Advantages of the Invention] As described in detail above, according to the present invention, a POS system that can accurately and promptly deal with the failure of a file controller
A system can be provided.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a block diagram showing a system configuration, FIG. 2 is a block diagram showing a configuration of a file controller, and FIG. 3 is a main memory configuration of a RAM of the file controller. FIG. 4 is a flowchart showing the main processing of the CPU of the file controller. 1 ₁ , 1 ₂ , 1 ₃ , 1 ₄ ...... File controller, 3 _{11 to} 3 _1n , 3 ₂₁
~ 3 _2n , 3 ₃₁ ~ 3 _3n , 3 ₄₁ ~ 3 _4n ...... Terminal 4 ...... Store controller (upper device) 5 ...... Line, 11 ...... CP
U, 12 …… ROM, 13 …… RAM, 13a …… Self memory file, 13b …… Recipient memory file, 13c …… Sending buffer.

Claims (1)

[Claims] 1. A plurality of file controllers for inputting and processing product sales data and connecting a plurality of terminals for issuing receipts, collecting sales data from each of the terminals and registering the sales data in a memory file. In a POS system controlled by a higher-level device, each of the file controllers is directly connected by a line as two sets, and each of the file controllers connects its own memory file for registering sales data collected by itself and the line. The memory file for the other party that registers the sales data sent from the other party via the other side, the send buffer that temporarily stores the data when sending the sales data to the other party, and the fact that the send buffer is full is detected. A down status notification means is provided to notify the host device of the down status of the other party. POS system characterized by a.