JPH0619589A - Automatic rising and falling method for terminal equipment power source for information network - Google Patents

Abstract

PURPOSE:To provide the automatic rising and falling method of the power source of a terminal equipment in which the distribution and reception of information can be attained under the same time control of a host computer and each terminal equipment. CONSTITUTION:In the rising and falling method of each terminal equipment in an information network constituted of the host computer and the plural terminal equipments, the program information of a power source control for the terminal equipment is distributed from the host computer, the program information is monitored and received by each terminal equipment, and the rising and falling of the power source is program-controlled at every terminal equipment.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for automatically controlling the start-up / shutdown of a plurality of terminal devices by a host computer, and more particularly to a control method suitable for control by time management of the host computer.

[0002]

2. Description of the Related Art FIG. 8 shows the configuration of an information network in the prior art. As shown in the figure, a host computer and a plurality of terminal devices are connected via a network. Each terminal device has, for example, a display device and a keyboard for input / output, and exchanges / processes information with the terminal device itself, between the terminal devices, or between the terminal device and the host computer. In order to distribute required information from the host computer to each terminal device while performing such an operation, conventionally, one external timer is connected to each power source unit for each terminal device and installed in the power supply unit. The method of setting the start-up and shut-down times of the power supply of was adopted. The present invention relates to improvements in such methods. This method has the following problems. That is, (1) There is a variation in the error for each timer, the time is not constant among the terminal devices, and the time between the host computer and each terminal device deviates. (2) Moreover, since the start-up / shutdown time of the terminal device differs depending on the device, it is necessary to set the time for each timer. In addition, the above-mentioned variation correction must be made for each timer, and resetting the time for that is a serious and inconvenient problem. (3) The timer has a space of about 20% of the terminal device, and its installation cannot be ignored in terms of space and cost. Further, the power supply capacities of the timer and the terminal device do not always match, and there is a case where an excessively large capacity timer must be used, which is a troublesome and uneconomical problem. The method of providing the timer has the above-mentioned problems. In particular, the problem of requiring the time setting and correcting the time variation is not a practically easy problem, and may not be used while the timer is installed. It was an inviting problem. On the other hand, there is also a method that does not use a timer. Whether the timer is not used or is not actually used, in such a case, the operator inevitably has to be conscious of the reception of information from the host computer instead of the timer function and operate. There will be no.

[0003]

As described above, it is a good expedient in principle to install a timer in the power supply of the terminal device so that each terminal device receives the information from the host computer. Nevertheless, in practice, the above-mentioned inconvenient or annoying problem was incorporated. An object of the present invention is to solve the above problems and to provide a method for automatically starting and stopping the power supply of a terminal device capable of distributing and receiving information under the same time management between a host computer and each terminal device. To provide.

[0004]

In order to achieve the above object, according to the present invention, as shown in FIG. 1, for example, as shown in FIG. 1, a power source of each terminal device in an information network including a host computer and a plurality of terminal devices is turned on. In the start-up / shutdown method, the host computer distributes power control program information for the terminal device, each terminal device monitors and receives the program information, and the power supply is turned on and off for each terminal device. Program control processing will be performed. In this case, the host computer delivers (1) startup information with terminal device identification, (2) shutdown information with terminal device identification, and (3) program information of current time information. , (1) Monitoring and startup processing of startup information with terminal device identification, (2) Reception of shutdown time information with terminal device identification, (3) Reception of current time information and determination and shutdown of shutdown time. The program control process to be performed may be performed.

[0005]

According to the program information from the host computer, each terminal device performs program control processing of power-on / off of each power source, whereby the operation of each terminal device is performed by the host computer under uniform time management. Will be seen. In order to perform a control processing operation based on a program, for example, a soft timer is operated based on transmission / reception of a common clock signal, and each control operation time with respect to a common time is counted to perform required processing. This timer does not require an external timer and can be a counter on an integrated circuit. Therefore, according to the present invention, various problems in the prior art, such as variations in time error, inconvenience of time setting, uneconomical in space and cost, are solved. More specifically, since the operation time of startup and shutdown is different for each terminal device, the host computer distributes the operation time information with the terminal device identification and the current time information to each terminal device, while each terminal device side It constantly monitors the information of its own device and performs startup processing when required,
In addition, when the current time information is received, the process of shutting down the own device may be performed from the count of the soft timer.
By doing so, the host computer and each terminal device operate under the same time management.

[0006]

1 is a diagram showing an embodiment of the present invention in an information network. Unlike the conventional method of FIG. 8, each terminal device is not provided with an external timer, and the host computer distributes power control program information for the terminal device, and each terminal device receives the program information. It is different in that the monitoring reception is performed and the start-up / shutdown of the power supply is controlled by a program for each terminal device. That is, on the host computer side, (1) an ID (terminal device identification) is added to the distribution information, and (2) each terminal device (I
Set the fall time to (D) and deliver the time information (3). On the other hand, on the side of the terminal device, (1) the distribution information is monitored (identification of ID, constant monitoring even when the terminal device is shut down)
When D matches, the terminal device is started up by the control of the power breaker unit, and (2) the soft timer is set. That is, the fall time information is fetched and the fetch time of the current time information is counted. (3) The terminal device is shut down by the control of the power breaker unit. As a result, the power supplies of the CPU section and the display section are turned off.

FIG. 2 illustrates information distributed from the host computer.

FIG. 3 is a flowchart of startup information processing of the terminal device. The start-up information is received from the host computer, the match with the self-device is confirmed from the identification display of the terminal device, the power-on "ON" flag is set, and then the start-up process is performed.

FIG. 4 is a flowchart of the fall time information receiving process. It receives the fall time information, confirms the match with the own device from the identification display of the terminal device, and performs the setting process of the fall time of the own device.

FIG. 5 is a flowchart of the time information receiving process. Receives time information from the host computer,
Performs the current time setting process for the soft timer.

FIG. 6 is a flowchart of the determination process of the fall time. When the current time and the fall time match in the count of the soft timer, the fall processing is performed.

FIG. 7 is a diagram showing the power control of the terminal device by the information distributed from the host computer. Program information such as startup information and shutdown information with terminal device identification display, and time information is distributed from the host computer. On the terminal device side, the sub CPU unit that is the interface unit with the host computer is constantly supplied with power, monitors the distribution information from the host computer, and controls the power breaker unit for the startup information to the own device. Power is supplied to the CPU section and the display section, and the power supply breaker section is controlled to shut down the power supply to the CPU section and the display section with respect to the information on the fall to the own device. Therefore, according to the present embodiment, the host computer uniformly processes the time and executes the program processing. In addition to the operation of the terminal device itself under the program control from the host computer as described above, the operator operates the power breaker unit to operate the power supply breaker unit in order to perform its own processing operation in a timely manner. It goes without saying that the power supply for the parts can be supplied in a timely manner.

[0013]

As described above, according to the present invention, since each terminal device can be started up and down under the uniform time management of the host computer, it is practical and economical. Can be operated.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of the present invention.

FIG. 2 is information distributed from a host computer.

FIG. 3 is a flowchart of startup information processing.

FIG. 4 is a flowchart of a fall time information reception process.

FIG. 5 is a flowchart of time information reception processing.

FIG. 6 is a flowchart of a fall time determination process.

FIG. 7 is a diagram showing power supply control of a terminal device based on information distributed from a host computer.

FIG. 8 is a diagram showing a conventional example.

Claims (2)

[Claims] 1. A method of starting and stopping the power supply of each terminal device for distributing required information from the host computer to each terminal device in an information network comprising a host computer and a plurality of terminal devices. From the above, the power supply control program information for the terminal device is distributed, each terminal device monitors and receives the program information, and the program control processing of the start-up / shutdown of the power supply is performed for each terminal device. A method of automatically starting and stopping the power supply of a terminal device in an information network. 2. The automatic start-up / shutdown method of a terminal device power supply according to claim 1, wherein (1) terminal device identification start-up information and (2) terminal device identification start-up time information from the host computer. ,
(3) The program information of the current time information is distributed, and each terminal device (1) monitors and starts up the startup information with terminal device identification, (2) receives the shutdown time information with terminal device identification, (3) A method for automatically starting and stopping a terminal device power supply in an information network, characterized by performing a program control process for receiving current time information, determining a stop time, and stopping.