JPS61216012A - Processing system for hit of power supply - Google Patents

Abstract

PURPOSE:To obtain materials for making the cause of a hit of power supply, etc., clear by saving information on the hit of power supply to a storage means which is stored and protected at the hit of power supply, and outputting the information on the hit of power break before operation restarts at power recovery. CONSTITUTION:If the hit of power supply is generated a hit detection part 10 informs a main control part 15 of that and the power source holds its voltage for a specific time. The control part 15 starts a saving program 16a to save the contents of control registers, etc., and information on the hit of power supply in storage areas 17a and 17c, respectively. A power-on diagnostic program 16b operates after the power source recovers to holds processing in readiness with initial setting when a flag is off, or read the saved contents of the control registers, etc., out of the stack area 17a and store them in an instantaneous power break information area 17c when the flag is on. Then, the saved information on the hit of power supply and contents of registers, etc., are read out of the area 17c and outputted on a display part 8 and a printer 12. Thus the data are outputted, then stored and recovered in respective registers of a microprocessor from the area 17a, and the processing is started.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement in a method for handling momentary power interruptions in transaction devices such as bank terminal devices.

In recent years, trading devices have become popular, but if a momentary power outage occurs during operation, there is a risk that the trading account for the day stored in the storage device will be lost, so the storage device must be protected with memory protection etc. Measures are being taken.

Furthermore, when a momentary power interruption occurs during a transaction operation, measures are taken to prevent the interruption of the operation from causing a transaction error and to enable the operation to resume from the time of interruption.

However, recovery from momentary power interruptions is automatic;
The above countermeasures allowed the operator to continue trading, making it difficult to determine the cause of the instantaneous power outage.

Therefore, there is a need for a method for handling momentary power interruptions that can output momentary power interruption information to help clarify the cause.

[Conventional technology]

Converting conventional technology into Online Terrors Machine (OTM)
) will be explained as an example.

OTM is a teller terminal device for automating transactions in companies, institutions, etc. It is connected to a solid device, and when a transaction is completed, it updates the customer file of the solid device and also records the transaction account for the day (hereinafter referred to as a counter). is stored and examined based on it.

Therefore, it is necessary to avoid loss of transaction information and counters during transactions due to momentary power interruption, etc., and the above-mentioned measures are taken.

Hereinafter, a conventional example of countermeasures against instantaneous power interruption of OTM will be explained.

Figure 2(a) is a schematic block diagram of OTM, and Figure 2(a) is a schematic block diagram of OTM.
b) is a flowchart of the operation at the moment of power interruption and restart.

In FIG. 2(a), 1 is a main control unit composed of a microprocessor, etc., 2 is a management program storage unit, in addition to programs that manage each counter processing program, etc., a save program 2a + power-on The one that stores the diagnostic program 2b, 3 is the counter processing program 3
It is a processing program storage unit that stores a, etc., and the storage units 2 and 3 are nonvolatile read-only storage elements (ROM).
It consists of

Reference numeral 4 denotes a counter storage section for storing a counter 4a such as a transaction account, and 5 is a working storage section which includes a work area, a stack area 5a, and a flag storage area 5b. The storage unit 4.5 described above is composed of a readable/writable storage element (RAM) and is protected by a battery 6.

Further, 10 is a momentary power failure detection unit, 11 is a power supply, a communication control unit 7 that communicates with the Ikenaka real device, a display unit 8, a key input unit 9, a printer 12 that outputs slips, etc., and a printer 12 that outputs slips etc. a passbook reader 13 that reads transaction information recorded in the passbook;
It is composed of a card league 14 for reading operator cards or executive cards.

Using the OTM with the above configuration, the teller performs deposit and withdrawal transactions using cash, checks, etc., but for each transaction, the teller communicates with the solid device and updates the customer file of the solid device, and the OTM updates the counter 4a. manages cash and checks handled by tellers.

Therefore, the contents of the counter storage section 4 and the working storage section 5 that store transaction information are protected by the battery 6.

The operation at the time of instantaneous power interruption will be described below with reference to the flowchart shown in FIG. 2 (bl).

(1) At the beginning of each counter processing program, a flag indicating that the program is running is turned on, and after the processing is completed, it is turned off.

(2) When the voltage of the power supply 11 that supplies power to each section drops below a specified value, the instantaneous power failure detection section 10 sends an interrupt signal to the main control section 1.

(3) In the power supply 11, even if a momentary power outage occurs, the specified voltage value is maintained by a large capacity capacitor, etc. for approximately 1Qms, and the main control unit 1 operates the save program 2a by the above interrupt signal, and controls the microprocessor, etc. The contents of registers (program counter, stack pointer, accumulator, etc.) are saved to the stack area 5a.

As described above, when the power supply is momentarily cut off, the fact that the counter processing program is running (flag on) and the processing information at the time of interruption are saved.

(4) When the power is restored, the main control unit 1 starts the power-on diagnostic program 2b, and the power-on diagnostic program 2b refers to the above flag, and if the flag is off, determines that the power was turned on by the operator, and performs the predetermined initial settings. Go and wait for processing.

(5) If the flag is on, it is determined that the process has been interrupted due to a momentary power interruption, the saved contents of the registers are stored in a predetermined register, and the interrupted program is run.

As described above, even if a momentary power outage occurs, the system will automatically recover, allowing the operator to continue transaction processing.

[Problem that the invention seeks to solve]

Momentary power interruptions occur due to various causes inside and outside the device, but are often instantaneous and irreproducible. Therefore, in devices that can be used for automatic recovery such as the above-mentioned OTM, there is a problem in that it is impossible to determine whether a momentary power interruption is the cause of a malfunction of the device, and furthermore, it is impossible to analyze a momentary power interruption.

[Means for solving problems]

The above-mentioned problem with the conventional technology is that it is equipped with means for saving instantaneous power interruption information in the storage means, and means for outputting the instantaneous power interruption information when the power is restored, and the saved processing information that outputs the instantaneous power interruption information is stored. This problem can be solved by the instantaneous power interruption processing method of the present invention, which recovers and restarts the interrupted process.

[Effect]

According to the present invention, in response to the instantaneous power interruption interrupt signal, instantaneous power interruption information such as the contents of the save register, interruption information due to two instantaneous power interruptions, and detection information of other parts are saved in a protected storage area.

If the restart is due to a momentary power interruption when the power is restored (flag on), first the saved momentary power interruption information is displayed on a display or the like to alert the operator and is output to the attached printer.

Subsequently, the contents of the save register are restored and the operation is restarted.

As described above, it is possible to provide instantaneous power interruption information that contributes to elucidating the cause of instantaneous power interruption.

〔Example〕

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

FIG. 1(a) is a block diagram of an OTM showing an embodiment.
Figure ('b) is an operation flowchart.

In FIG. 1(a), 16 is a management program storage unit that stores a save program 16a for executing instantaneous power interruption processing of the present invention, a power-on diagnosis program 16b, etc., and 17 is a control program storage unit for saving microprocessor control registers. In addition to a stack area 17a and a flag area 17b for storing flags, it is a working storage unit having an area for storing momentary power interruption information, and is protected by a battery 6. Other 2nd
The same symbols as in the figure represent the same objects.

The save program L6a stores the contents of the control registers of the microprocessor in the stack area 171 indicated by the stack pointer, and also stores the instantaneous power interruption information in the instantaneous power interruption information area 17c.

The power-on diagnostic program 16b is started when the power is turned on,
Following the functional diagnosis of each part, the flag area L7b is searched to see if power interruption processing was in progress. If the flag is off, it is determined that the power was turned on by the operator, and if the flag is on, the saved control registers are The contents are read from the stack area 17a and stored in the power interruption information area 17c,
Displayed on the display section 8 together with the power supply interruption information, and then
The information is output to the J7 data 12.

According to each of the above programs, instantaneous power interruption processing is performed as follows. [See Fig. 1, ridges] (1) When a momentary power interruption occurs, the momentary interruption detection unit 1o notifies the main control unit 15, and the power source 11 maintains the voltage for a specified time.

(2) The main control unit 15 starts the save program 16a,
The contents of control registers and momentary power interruption information are stored in respective storage areas 17a and 1'? Evacuate to 'c.

(3) After the power is restored, the power-on diagnostic block is activated, and if the flag is off, the initial setting is to wait for processing;
When the flag is on, the following operations are performed.

(4)-1 Read the contents of the control registers saved from the stack area Lea.1. It is stored in the power supply interruption information area 17C.

(41-2 Reads the instantaneous power interruption information saved from the instantaneous power interruption information area 17c and the contents of the control registers, and outputs it to the display unit 8 and printer 12.

(4) -3 After the above output is completed, the stack area 17a stores and restores the data to each register of the microprocessor and starts processing.

As described above, since instantaneous power interruption information is always output when the instantaneous power interruption is restored, it is possible to contribute to elucidating the failure.

〔Effect of the invention〕

As explained above, according to the present invention, instantaneous power interruption information is evacuated to a storage means with storage protection at the time of instantaneous power interruption, and the instantaneous power interruption information is outputted before restarting operation at the time of recovery. We can provide materials for elucidating the cause.

[Brief explanation of drawings]

FIG. 1(a) is a block diagram of an OTM showing an embodiment.
(in the figure) is an operation flowchart, FIG. 2(a) is a schematic block diagram of a conventional OTM, and FIG. 2(b) is a flowchart of operation at the moment of power interruption and restart. In the figure, 1.15 is a main control unit composed of a microprocessor, etc., 2.16 is a management program storage unit, 2a and 1 (ia are backup programs, 2b and 16b are power-on diagnostic programs, and 3 is a processing program storage unit. 3a is a counter processing program; 4 is a counter storage unit;
4a is a counter, 5.17 is a working memory section, 5a and 17a are stack areas, 5b and 17b are flag areas, 6 is a battery, 7 is a communication control section, 8 is a display section,
9 is the key human power section, 10 is the instantaneous interruption detection section, 1
1 is a power supply, 12 is a printer, 13 is a passbook league, 14 is a card reader, and 17c is a power interruption information area. No 1 trouble ((1) Mine j Figure Cb) $ 2 Figure (6L)

Claims (1)

[Claims] A power interruption processing method that detects a memory protected storage means and processing information necessary for continued processing upon detecting an instantaneous power interruption, and resumes the processing from the time of interruption when the power is restored,
The apparatus includes means for saving instantaneous power interruption information in the storage means, and means for outputting the instantaneous power interruption information when the power is restored, and restores the evacuated processing information that outputs the instantaneous power interruption information and resumes the interrupted process. A method for handling momentary power interruptions that is characterized by restarting.