JPH033261B2 - - Google Patents

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention connects a plurality of electronic cash registers (hereinafter referred to as registers) online to a transmission control device, and each register In a system where registered data is stored in its registers and a transmission control device, data transmission in a group of registers that transmits data stored in the other to one when the fault is recovered after a failure occurs in one of the registers. It is related to the method.

(Prior Art) Conventionally, in a so-called POS system in which multiple registers are connected online via a transmission control device, the data registered in each register is transmitted to the transmission control device for each registered data or each time a transaction is completed. A method is adopted in which a plurality of registers are centrally managed by the transmission control device by storing the information in the register.

(Problem to be solved by the invention) However, for example, if a fault occurs in a certain register, the reliability of the data stored in that register is lost, so even if the fault is recovered by repair or replacement, , the data stored in the register and the transmission control device may not match each other. In such cases, conventionally, the data has been corrected by manual operation after the day's work is completed, which is time-consuming and inconvenient.

The present invention was made in view of the above problems, and
It is an object of the present invention to provide a register device that can match data in a transmission control device and a register even if a failure occurs in either the transmission control device or the register.

[Structure of the invention]

(Means for Solving the Problems) The present invention connects a plurality of registers online to a transmission control device, stores registration data registered in each register in each register, and In the register device, the register has register transmission means for transmitting the opening request data and transmitting and receiving the registration data, and the transmission control device transmits and stores the register data for each register. storage means capable of setting transmission instruction data for instructing transmission or reception of registration data of the above, and whether the transmission instruction data set in the storage means when the opening request data is sent is transmission or reception; The control transmission means has a determining means for determining, and a control transmission means for transmitting or receiving registration data based on the determination by the determining means.

(Function) According to the present invention, when open request data is sent to the transmission control device from the register transmission means of the register, the determination means determines whether the transmission instruction data set in the storage means is transmission or reception. Determine if there is. If the transmission instruction data is determined to be sent,
Registration data is transmitted by the control transmission means of the transmission control device, received by the register transmission means of the register, and stored in this register. Conversely,
If it is determined that the transmission instruction data has been received, the registration data is transmitted by the register transmission means of the register, the registration data is received by the control transmission means of the transmission control device, and is stored in this transmission control device.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

Figure 1 is a block diagram showing the entire system.
In FIG. 1, T is a transmission control device that controls data exchange, and registers R ₁ to _Ro are connected online to this transmission control device T via a transmission path ADB. The transmission control device T includes a transmission control circuit 1 that controls transmission and reception, a central processing unit [CPU] 2 that functions as a determining means and a control transmission means, and a random access circuit 1 that controls transmission and reception.
It has a built-in memory [RAM] 3, and is externally connected to a keyboard 4, a display 5, and a printer 6. The RAM 3 is provided with a register-by-register data summation memory 7 and a register-by-register management memory 8 that store the transferred registration data for each register. As shown in FIG. 2, this register-specific data aggregation memory 7 stores
The registration data sent from R ₁ to _{R o} is totalized and stored for each register number 1 to n. Further, as shown in FIG. 3, the register management memory 8 includes registers R ₁ to R _o with register numbers 1 to n.
Transmission instruction data storage areas D ₁ to 800 _o corresponding to the respective addresses 8000 to 800 o serve as storage means for setting transmission instruction data instructing a data load indicating transmission or a data request indicating reception.
D _o and flags F ₁ to _{F o} are provided. Each of the flags F ₁ to _{F o} is an 8 flag that stores the business status of each register R ₁ to _{R o} , as shown in FIG.
Consists of bits _b0 to _b7 . Bit _B5 therein indicates whether it is a data load or a data request.

FIG. 5 is a block diagram showing the internal configuration of each of the registers R ₁ to _{R o} . In FIG. 5, numeral 11 is a central processing unit (CPU) having a function as a register transmission means. This CPU 11 has a keyboard 13 via a keyboard circuit 12, a display 15 via a display circuit 14, a read-on memory [ROM] 16, and a random access memory [RAM] 17 that directly control the printer. Printers 19 are connected through circuits 18, respectively. On the keyboard 13, a number key 20, a department key 21, and other function keys 22 are arranged.
Further, the RAM 17 is provided with a data totaling memory 23 that stores registered registration data.

Next, the effect will be explained.

Now, for example, register R ₁ with register number 1
When a registration operation (entering the amount of the product using the number key 20 and then pressing the department key 21) is performed, the registration data registered by the registration operation is stored in the data totaling memory 23 of the register _R1 . At the same time, it is transmitted by the register transmission means, received by the control transmission means of the transmission control device T, and sequentially stored in the register-by-register data total memory 7 corresponding to register number 1. Therefore, in this state, the registered data in the data aggregation memory 23 of register _R1 and the registered data in the register-specific data aggregation memory 7 corresponding to register number 1 of the transmission control device T are in a state where they match each other. be.

For example, consider a case where some kind of failure occurs in the register _R1 and the registered data in the register _R1 becomes zero. In this case, register R ₁ is first entered using the keyboard 4 of the transmission control device T.
After setting address 8000 in RAM 3 corresponding to , press a certain function key, and then send the transmission instruction data, for example, to load the registered data stored in this transmission control device T into register R ₁ . After entering 01, press another function key. Then, the transmission instruction data 01
is set at address 8000 of the register-specific management memory 8. On the other hand, once the fault in register _R1 has been recovered,
In that register R ₁ , if you enter the cache number in charge of that register R ₁ , the register
Opening request data is transmitted to the transmission control T from the register transmission means of _R1 . Then, the transmission control device T transfers the transmission instruction data 01 stored at address 8000 of the register-specific management memory 8 to the accumulator of the CPU 2, for example, according to the flowchart in FIG. Determine whether the transmission instruction data is 01 or not. In this case, it is 01, so after setting bit _b5 to "1", the registered data in the register-by-register data totaling memory 7 corresponding to register number 01 is transmitted to register _R1 by the control transmission means. . Therefore, when this transmission is completed, the data in the register _R1 and the registered data in the register-by-register data totaling memory 7 corresponding to register number 01 of the transmission control device T are in a state of agreement with each other.

On the other hand, when a failure occurs in the transmission control device T and the failure is recovered, the registered data stored in the data aggregation memory 23 of registers R ₁ to _{R o} is transferred to the transmission instruction data 02 and the register for requesting data. Transmission instruction data storage area of separate management memory 8
If D ₁ to _{D o} are set, the registered data stored in the data totaling memory 23 of registers R ₁ to _{R o} is transmitted by the register transmission means and received by the control transmission means of the transmission control device T. Ru. Therefore, when this transmission is completed, the transmission control device T and the register
The data of R ₁ to _{R o} are in a mutually consistent state.

〔Effect of the invention〕

According to the present invention, a plurality of registers are connected online to a transmission control device, and registration data registered in each register is stored in that register and the transmission control device. When a failure occurs on one side and the failure is recovered, the registration data stored on the other side is transmitted to the other side. Even if a failure occurs in one or the other, the data in the transmission control device and the register can be made to match each other.
Therefore, it is possible to eliminate the need for manually correcting data at the end of a day's work as in the past.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a system according to an embodiment of the present invention, FIG. 2 is an explanatory diagram showing data aggregation memory for each register, FIG. 3 is an explanatory diagram showing management memory for each register, and FIG. FIG. 5 is a block diagram showing the internal structure of the register, and FIG. 6 is a flowchart during transmission. 2...Central processing unit [CPU] having functions as a determination means and control transmission means, 11...Central processing unit [CPU] having functions as a register transmission means, T...Transmission control device, R _{1 〜Ro} ……
Registers, D ₁ to D _o ...Transmission instruction data storage area as storage means.

Claims (1)

[Claims] 1. A plurality of registers are connected online to a transmission control device, and registration data registered in each register is stored in each register and transferred to the transmission control device for storage. In the register device, the register has register transmission means for transmitting open request data and transmitting and receiving registration data, and the transmission control device transmits or receives registration data to and from each register for each register. storage means capable of setting transmission instruction data for instructing the communication; and determining means for determining whether the transmission instruction data limited to the storage means is transmission or reception when the opening request data is sent; A register device comprising control transmission means for transmitting or receiving registration data based on the judgment of the judgment means.