JPS63276614A - Power source managing system - Google Patents

Abstract

PURPOSE:To execute a power source management by disconnecting the own power source, when the power source of all terminal equipments is disconnected or communication is in a closed state, by an output of a flag part for showing a state of each terminal equipment. CONSTITUTION:When a terminal equipment 32 has ended communication or a power source is turned off, an interface 11 of a controller 10 informs it to a terminal monitoring part 21. The monitoring pat 21 executes an inquiry by a prescribed number of times and confirms whether a response exists or not. In the case of no-response, a flag f2 is set to '1' as the number of sets (n)=1, and an inquiry is executed to other terminal equipment 31. When there is a response, an inquiry is executed to an equipment 33 in a state that f1 is '0'. Subsequently, a state of all terminals is confirmed one after another, and when all flags (f) become '1' a gate 22b is opened and it is informed to a power source OFF/ON monitoring part 13, the monitoring part 13 executes a terminal processing in a main controller, and thereafter, outputs a request signal to a power source control part 14 so as to turn off the power source of its own device. According to this constitution, only when an event has been generated, a power source turn-off execution processing system operates, a mechanism for always monitoring a state of the terminal equipment becomes unnecessary, and the efficiency is improved.

Description

[Detailed description of the invention] 【overview】

This is a power management method for a main control unit that has multiple terminal devices connected under it, and includes a flag section that displays the status of each individual terminal device, and a status output from this flag section that turns off the power to all terminal devices. A power management method that turns off its own power when it is in a state where it is in a state where it is not in use or communication is blocked.

[Industrial application field]

1 terminal device (workstation) for multiple tasks
When connected to the main control device (station controller) of a station and installed in the same building, the installation location is often divided into upper and lower floors, or installed in individual rooms. be. When adopting this type of installation, it is not possible to directly know from the installation position of the main control device whether each terminal device is powered on or currently communicating. When turning off the power to the main control device, it was necessary to inquire about the status of all terminal devices by telephone or the like. Furthermore, even if all the terminal devices are not in use, the power to the main control device may be left on unnecessarily.

[Conventional technology]

A block diagram of conventional power-off control is shown in FIG. In the figure, 10 is the main control device (station controller)
, 31 to 33 are terminal devices (workstations) for work, 11 is an interface, 12 is a data flow control circuit, 13 is a power supply/disconnection monitoring section, 14 is a power supply control section, 15
is a timer. In conventional power management, the power supply/disconnection monitoring unit 13 uses the timer 15 to inquire of the data flow control circuit 12 about the status of the terminal device at regular intervals, and the data flow control circuit 12 uses the ink face 11 to inquire about the status of the terminal device. The status of the terminal device is notified, and the status at that time is notified to the power supply connection/disconnection monitoring unit 13. The power disconnection monitoring unit 13 is one of the terminal devices.
If the terminal device is in operation, the timer 15 is subsequently reset, and after a predetermined period of time has elapsed, a terminal device status inquiry signal is sent to the data flow control circuit 12. When all the terminal devices are used up, the power control section 14 is notified and the terminal device itself is turned off.

[Problems to be solved by the invention]

In conventional power management, the power control mechanism includes a detection mechanism-related section and an execution processing mechanism-related section that turns off the power based on a signal from the detection result, and these two mechanisms are used to close the system. This is convenient in terms of space and ease of operation when each terminal device is installed in a specific area, but it is not possible to detect the status of all terminal devices at once, It was necessary to repeatedly inquire about the usage status of each device. Therefore, there is often a time lag between the occurrence of an event and the countermeasures taken, resulting in the inconvenience that additional inquiry work is required to monitor the terminal device even during normal business operations.

[Means to solve the problem]

The configuration of the present invention that solves the above problems includes a circuit 12 connected to a plurality of terminal devices ff131, 32, 33 via an interface 11, and controlling data flow with the terminal devices 31, 32, 33; The power supply management system includes a power connection/disconnection monitoring section 13 that receives a signal from the control circuit 12 and notifies a power supply control section 14 of a request signal, and is provided corresponding to the plurality of terminal devices 31, 32, and 33. A terminal status display control unit 22 that displays the status of the terminal device and notifies the power connection/disconnection monitoring unit 03) according to the status output at that time, and issues a consultation signal for the terminal device in response to no response from the terminal device. This configuration includes a monitoring means 21 for monitoring.

[Sakukaku]

In the above configuration, each terminal device 31, 32, 33 becomes unresponsive to the main controller 10 when the power is cut off or communication is blocked, and the main controller 10 monitors this unresponsive state by notification from the interface 11. 21, the terminal device 31, 32, 33 is contacted by making a predetermined number of attempts. Here, if no response is repeated, it is determined that the connection has been disconnected (power off), and a message to that effect is displayed on the display control unit 22, and the status of the other terminal devices 31, 32, 33 is consulted, and all When the terminal device 31, 32, or 33 is powered off or communication is blocked, the power disconnection monitoring unit 13 issues a notification signal to request the power control unit 14 to disconnect the power.

【Example】

FIG. 2 is a block diagram of an embodiment of the present invention. In the figure, 21 is a terminal monitoring unit that monitors the status of the terminal device; 22
a is a flag section provided for the terminal device, and fLf2. f3
correspond to terminal devices 31, 32, and 33, respectively, and n
is the number of units whose flag flag f is on (for example, when power is cut off or communication is completed), 22b is a gate circuit,
Other same symbols as in FIG. 1 represent the same things. The operation of the present invention having the above configuration will be described below. The terminal device communicates with the main controller 10 via an interface 11 under the control of a data flow control circuit 12 . Then, for example, when the terminal device 32 ends communication or turns off the power, the interface 11 on the main control device 10 side notifies the terminal monitoring unit 21 that the terminal device 32 has become unresponsive. Upon receiving this notification, the terminal monitoring unit 21 issues an inquiry signal to the interface 11 a predetermined number of times (for example, three times) and checks whether there is a response. As a result, if there is still no response, "1" is written in the flag f2, the number of devices is set to n-1, and an inquiry to other terminal devices 31 is issued to the interface 11. If there is a response at this time, flag f1
is left at "'0", and the next response to the terminal device 33 is confirmed via the ink face 11. If the terminal device 33 does not respond, the above terminal device 32
In the same way as in the above case, the connection is tried a predetermined number of times, and if there is still no response, "1" is written in the flag f3, and then the number n is incremented by 1. The terminal monitoring unit 21 performs the above monitoring operation for all terminal devices. The flag section at this time is n=2. fl-“0”, f2-“
1", f3."1", the gate circuit 22b remains closed and does not issue a notification signal to the power disconnection monitoring unit 13. The terminal monitoring unit 21 checks the status of all terminal devices. , when the flag f becomes all “]”, the gate circuit 22b opens and a notification signal is issued to the power disconnection monitoring unit 13.The power disconnection monitoring unit 13 receiving this signal After performing termination processing such as outputting the logging state at that time, it outputs a signal to the power supply control section 14 to instruct it to turn off the power of its own device.

【Effect of the invention】

According to the present invention, the detection mechanism system in the power control mechanism section and the power-off execution processing system based on the detection result are divided into functions, so that the power-off detection function section manages the status of all terminal devices. The power-off execution processing system operates only when an event occurs, and there is no need for a mechanism to constantly monitor the status of the terminal device, which greatly improves the efficiency of the processing device and the reliability due to the simplification of the mechanism. Contributing. .

[Brief explanation of the drawing]

FIG. 1 is a block diagram of the principle of the present invention, FIG. 2 is a block diagram of an embodiment of the present invention, and FIG. 3 is a conventional control block diagram. In the figure, 10 is a main controller, 11 is an interface, 12 is a data flow control circuit, 13 is a power supply/disconnection monitoring section, 14 is a power supply control section, 21 is a terminal monitoring section, 22a is a flag section, 22b is a gate circuit, and 31, 32, and 33 are terminal devices.

Claims (1)

[Scope of Claims] Connected to a plurality of terminal devices (31, 32, 33) via an interface (11), the terminal devices (31, 3
2, 33); and a power supply/disconnection monitoring unit (13) that receives the signal from the control circuit (12) and notifies the power supply control unit (14) of a request signal.
), the power management system includes a power supply connection/disconnection monitoring unit (13) that is provided corresponding to the plurality of terminal devices (31, 32, 33) and displays the status of the terminal device, and also displays the status of the terminal device at that time. A display control unit (22) for notifying the status of the terminal, and a monitoring means (21) for issuing a consultation signal for the terminal in response to non-response from the terminal. A power management method characterized in that the power of the own device is cut off when a power outage or communication blockage is detected.