JPS62252241A - Terminal equipment - Google Patents

Abstract

PURPOSE:To efficiently and surely perform the reception and the process of data even in an unmanned operation, by providing a power supply application/cut-off device having a function to receive a process completion signal from a terminal equipment, and to cut off the power source of the terminal equipment, and supplying the power to the terminal equipment only for the minimum time required for the reception and the process of the data. CONSTITUTION:A power source application/cut-off device 6, when receiving the data, performs the power supply application of a terminal processor 4, and a printer 5 through a power supply lines 8 and 9, and also, supplies reception data to the terminal processor 4. The terminal processor 4 performs a required process on the basis of the reception data, and transfer the data to a printer 5 when necessary. When the required process is completed, the terminal processor 4 supplies a process completion signal to the power supply application/cut-off device 6. The power supply application/ cut-off device 6 terminates the power supply to the terminal processor 4, and the printer 5 at a time when it receives the process completion signal, then cutting off the power source. In other words, a program in the terminal processor decides the time of the power cut-off. Therefore, the power supply is performed only for the minimum required time.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a terminal device, and particularly to a terminal device capable of unattended operation in an online system.

[Conventional technology]

Currently, online systems are used in various fields including the financial industry. In this online system, a large number of terminal devices are connected to a higher-level central processing unit via lines. A terminal device capable of unattended operation is configured to automatically turn on the power when receiving data from the central processing unit.

Regarding power-off, either the power is automatically turned off at the end of data reception, or a timer is used to turn off the power after a preset period of time has elapsed since data reception. There is.

[Problem that the invention seeks to solve]

Each of the above-mentioned conventional power-off methods for terminal devices has its own problems. In a method that automatically turns off the power at the end of data reception, power is supplied only for the minimum amount of time necessary for data reception, which reduces electricity bills and other costs.
It has the advantage of being very economical. However, since the terminal device cannot perform any processing after receiving data, there is a problem in that it is extremely inefficient.

For example, even if data is received during unmanned operation at night,
During this unmanned operation, only data is received, and no processing is performed based on this received data. Therefore, when the operator comes out the next morning, he must turn on the power and perform the necessary processing. In industries where data files are updated based on received data, invoices are printed out, and shipments are carried out early in the morning, this causes delays and greatly reduces efficiency.

On the other hand, a method using a timer and supplying power for a predetermined period of time even after data reception has the advantage of being extremely efficient, since even necessary processing can be executed during unattended operation. However, how to set the time for this timer is a big problem.

In general, the time required to receive data and the time required for processing based on this received data is not constant (it varies each time. Therefore, if the timer is set too short, the power may be cut off in the middle of the processing operation, or in some cases There is a risk that the power may be cut off in the middle of the data reception operation.On the other hand, if the setting is too long, the power supply will continue for a long time even though the processing operation has already been completed, which will impair economic efficiency. It is.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a terminal device that can efficiently (reliably) receive and process data even during unmanned operation, and can also operate economically.

[Means for solving problems]

The present invention provides a data transmitting/receiving device for transmitting and receiving data to and from a central processing unit via a line, a terminal device having a function of performing necessary processing based on data received by the data transmitting/receiving device, and a data receiving/receiving device in a terminal device. A power on/off device is installed that has the function of turning on the power to the terminal device when required processing is completed, and turning off the power to the terminal device upon receiving a processing end signal from the terminal device when the necessary processing is completed. The above objective is achieved by supplying power to the terminal equipment only for a limited period of time.

〔Example〕

The present invention will be described below based on illustrated embodiments.

FIG. 1 is a block diagram of a terminal device according to an embodiment of the present invention. Note that the central processing unit l in this figure is shown for reference and is not a component of this embodiment.

That is, the terminal device according to this embodiment has N CU 2 (
The data transmitter/receiver includes a network control (Llnit) and a modem 3, terminal equipment includes a terminal processing device 4 and a printer 5, and a power on/off device 6. Here, solid lines indicate data lines, broken lines indicate power supply lines, and dashed lines indicate communication lines.

During manned operation, power is supplied to the terminal processing device 4 and printer 5 manually by the operator; however, during unmanned operation such as at night, the power to these devices is normally cut off. Now, consider the operation when data is transmitted from the central processing unit 1 to the NCU 2 via the communication line 7 during such unmanned operation.

The NCU 2 is a device that serves as an interface between the communication line 7 and the modem 3, and the received data taken in by the modem 3 is given to the power on/off device 6. When the power-on/off device 6 receives the data, it powers on the terminal processing device 4 and the printer 5 via the power supply line 8.9, and also provides the terminal processing device 4 with the received data. The terminal processing device 4 performs necessary processing based on this received data, and transfers the data to the printer 5 if necessary. When all necessary processing is completed, the terminal processing device 4 gives a processing end signal to the power on/off device 6. When the power on/off device receives this processing end signal, it stops supplying power to the terminal processing device 4 and the printer 5, and the power is turned off.

As described above, in this terminal device, the program within the terminal processing device determines when to turn off the power.

Therefore, always based on the reception of data and this received data (
Power is supplied only for the minimum amount of time required for processing, which is extremely economical. Moreover, the necessary processing is reliably completed during this unmanned operation, which is extremely efficient.

Note that in the above embodiment, the terminal processing device 4 is used as the terminal device.
Although the present invention is exemplified by the terminal device 5 and the printer 5, the present invention is not limited to these terminal devices, but can be applied to turning on and off power to all terminal devices such as display devices and storage devices.

〔Effect of the invention〕

As described above, according to the present invention, the terminal device receives the power on/off device and supplies power to the terminal device only for the minimum time necessary for receiving and processing data. can be efficiently and reliably received and processed, and can be operated economically.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a terminal device according to an embodiment of the present invention. 1...Central processing unit, 2-=-N CU (Network Control
3...Modem, 4...Terminal processing device, 5...Printer, 6...Power on/off device, 7... ...Communication line, 8.9...Power supply line. Applicant: NEC Corporation Representative

Claims (1)

[Claims] a data transmitting/receiving device that sends and receives data to and from a central processing unit via a line; a terminal device having a function of performing necessary processing based on data received by the data transmitting/receiving device; and a terminal device that receives data from the data transmitting/receiving device. A terminal device comprising: a power on/off device having a function of turning on the power of the device, receiving a processing end signal from the terminal device when the processing of the terminal device is completed, and turning off the power of the terminal device. .