JPS6072449A - Power supply disconnecting system - Google Patents

Abstract

PURPOSE:To eliminate useless power consumption and the need of standby of the operator by disconnecting individually the power supply of a data processing unit independently of the power supply of a communication controller, and disconnecting simultaneously the power supply of the communication controller at the time of the completion of processing of all systems. CONSTITUTION:When communication controller 1-3C receive a change notice message as shown in the figure from other communication controller while they are in local mode, they transmit the message as it is to other controller when the message is addressed to the other controller, or registers the sender address to a change completion list when the message is addressed to the own controller. This is the same when they are operated in remote mode. Then the change completion list is checked and if all the communication controllers do not complete the switching to the remote mode yet, the operation is continued with a remote mode control program. When all the communication controllers confirm that the changeover to the remote mode is completed, the control program executes a power supply disconnecting instruction and starts a power supply disconnection command circuit 16 to disconnect the own power supply. Thus, when the job of all the data processing units is finished, the power supply disconnection of all the communication controllers is executed automatically at the same time.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to a power-off method in a system configured by connecting a plurality of data processing devices via a communication control processing device and a data line.

(bl Background of the Technology) Conventionally, in systems that perform online data processing by connecting multiple data processing devices via a data line via a communication control processing device, all data processing devices are The data processing device was on standby without being powered off.

(C) Prior Art and Problems An example of a conventional method is shown in FIG. 1(a). Figure 1<a)
1.2a, 2b, 3 are data processing devices, lc,
2c and 3c are communication control processing devices.

Reference numeral 4 indicates a data line, and reference numeral 5 indicates a data terminal device 1, such as a typewriter terminal, a display terminal, a terminal processing device, etc. Input/output data from the data terminal device 5 is input/output to the communication control processing devices 10 to 2c via the data line 4,
Processed by data processing devices 1 to 3. Data from the data terminal device 5 connected to the communication control processing device IC is transferred to the communication control processing device 1c, the data line 49 and the communication control processing device 2.
The data may be processed by the data processing device 2a or 2b via C. That is, the data processing devices 1 to 3 each share and execute processing programs with different contents, and perform necessary processing on data from a plurality of data terminal devices 5 according to the contents. A widely used method is to input and output data to each data processing device via the communication control processing device IC to 3C. A state in which communication control processing functions are executed under the control of the data processing device, i.e., a local state, and a data processing device 1
There are two states: -3 and 3, which are logically separated and execute the communication control processing function independently, that is, the remote state. Do this by changing JO. In the system of FIG. 1 <a>, data processing device 1 is executing data processing.
The work that should be processed is completed, and the data processing devices 2a and 2b
, 3 continue data processing, the data processing device l issues a command to the communication voice processing device 1c to switch from the local state to the remote state, and the data processing bag rf? , ■ are stopped, and the communication control processing device 1c independently executes communication control processing. However, the power to the communication control processing device 1c is turned on in conjunction with the power to the data processing device 1.

In order to perform the disconnection, the power of the data processing device 1 cannot be disconnected. It becomes possible to turn off the power to the data processing devices 1 to 3 only when all of the data processing devices 1 to 3 have finished their work and all of the communication control processing devices IC to 3C have entered the remote state.

In other words, the data processing device that finished its work first has to wait to turn off the power until all the data-intensive processing devices have finished their work.
Unnecessary power is consumed, and the operator is forced to stand by unnecessarily.

(dl) Purpose of the Invention It is an object of the present invention to eliminate the above-mentioned problems, and to enable a data processing device that has completed a task to be powered off and put into the IR mode, regardless of other data processing devices.

(e) Structure of the Invention The present invention can be combined with a plurality of data processing devices and a plurality of downlink circuits and lines, and can communicate with a plurality of the above data lines under the control of the data processing device and independently. Tetsu (l)
control (capable of executing several functions, and internal programs,
It is possible to turn off the power by controlling the RAM.
A control processing device is connected to one or more data processing devices and a plurality of four data terminals connected in the data line, and data is transmitted between the plurality of communication control processing devices. In a system that connects via a line and executes data processing, "1" (among the above-mentioned multiple communication control processing devices that are executing data processing, the connection with the data processing device is completed after data processing is completed). However, the communication control processing device that has started executing the communication control function independently cancels the connection with the data and evening processing devices for the plurality of communication control processing devices that are connected to the data line. by a communication message, and the plurality of communication control processing devices detect that all the communication control processing devices composing the system have released the connection with the data processing device. (f) Embodiment of the invention A communication control processing device to which the invention is applied to FIG. 1(b)
Give an example. The present invention is the first. This is realized by applying the communication control processing device shown in FIG. 1(b) to the system shown in FIG. ~: 3C is powered on to the power supply circuit 18 by the power-on ih command linked to the power control system of the data processing devices 1 to 3, and starts operation.
Alternatively, commands from the plurality of data processing bags Wl-3 can be sent to the interface circuit 22. It is input to the main control circuit 14 via the control bus 20, and is input to the main 11i1J f:llI program [1
The local state control program (11) specifies the local state control unit 12, and the communication control fffll processing devices 1c to 3c start executing the communication control processing function in the local state. Input/output data to and from the processing device and the plurality of data + Will terminal devices 5 is input/output to the line circuit 21 via the data opening 4.modulation/demodulation device 25.connection cable 24.connection connector 23, and during this time the data line 4 2, the modulated Pino 1 series data signal is converted to the edict format used internally and sent via the data bus 19 and interface circuit 22. The main control program is input/output between the data processing devices 1 to 3 under the control of the main control circuit 14 and instruction execution control circuit 15.

and the local state side (a11 program is read by the instruction execution control circuit 15 via the data bus 19,
It is decoded and executes the communication control J11 processing function.

As mentioned above, input/output data from other communication control processing devices and a plurality of data (11) non-device j5 is processed by data processing devices connected to communication control processing devices IC to 3C, but when the system is In the state in which data processing continues, the communication control processing devices 1C to 3C are set to the local state. When any one data processing device finishes its data processing operation, the connected communication system f+I
A command to switch from the local state to the remote state is output to the Il processing device. The switching command is issued by the interface circuit 22. It is input to the main control circuit 14 via the control bus 20, and changes from the local state to the remote state...
The connection is changed, the remote state control program 2gram storage section 13 is specified, and the communication control a11 processing device starts the communication control processing function function 11 in the remote state.

In the remote state, the destination of the input data from the line 4 is determined 1, and the operation continues to be sent as is to the line 4 of the corresponding destination. The data processing device that has completed the above-mentioned process Vt"5 confirms that the switching has been completed, and then the power is turned off by the operator.

However, the power supply control system is
Do not instruct cutting. When the communication control processing function switches to the remote state, the communication control process I! The Ij device immediately inscribes all other communication control processing devices connected to the data line 4 and sends a switching notification message 7- as shown in FIG.
11 to confirm that the state has been switched to the remote state. Figure 2 shows the contents of the switching notification message, which consists of the sending 1, -1 source address, destination address, and communication content: + gl +! The data are sent out sequentially onto the data line 4.

The operation of the communication control processing device that receives the switching notification message will be explained below.

(1) Communication system fall processing '3A location is in local state, Bi5, data time, glands 0-5F are in operation due to local state control program 1J program, and other communication i'3'
jlllJ processing unit When the notification message shown in the diagram is input, the Jgram determines whether the destination address of the message matches its own address in the local state control J11. If it is the address of the communication system fall processing device of the country, the menu 1z is sent as is to the communication control processing device of the corresponding address via line 4.

If it has its own address -C, it notifies that the notification content is a switching notification message and registers the sender's address in the switching completion list.

(2) The communication i1iη control processing device is in a remote state,
When the remote state control program is in operation, when the switching notification message shown in FIG. Determine whether it matches or not. Other communication systems fff
ll treatment f! I! If the address of the device is the address of the communication control processing device at the corresponding address, the message is directly transmitted to the communication control processing device at the corresponding address via line 4.

If it is the own address, confirm that the notification content is a switching notification message, and register the sender address in the switching completion list. Next, the switching completion list is checked, and if all the jffl communication control processing devices have not yet completed switching to the remote state, the operation continues according to the remote state control program. All communications 1i1
J fall If the processing device has completed switching to the remote state, the program will turn on the
It executes the power-off command, starts the power-off command circuit 16, outputs the power-off command 17 to the power supply circuit 18, cuts off its own power, and stops its operation.

According to this method, as can be easily understood from the above explanation,
In the 1111th system, the data processing bags 'Ft, '1 to 3 constituting the 'ζ system can be arbitrarily turned off when their data processing tasks are completed. Furthermore,
When all the data processing devices 1 to 3 constituting the system finish their data processing operations, the power to all communication i1i control processing devices 10 to 3C is automatically turned off at the same time.

(g) Effects of the Invention As described above, by implementing the present invention, the power supply of the data processing device that constitutes the data communication processing system for 1 hour can be switched to the communication Mi
By disconnecting the power supply of the control processing unit independently and arbitrarily before unpacking, and cutting off the power supply of the communication 11 control processing unit all at once when the data processing of the entire system is completed, unnecessary power consumption and the loss of workmanship can be avoided. It becomes possible to eliminate the need for waiting.

[Brief explanation of the drawing]

FIG. 1(a) shows an example of a data processing system to which the conventional method and the method according to the present invention are applied, and FIG. 1(b) shows an example of a circuit of a communication control processing device to which the present invention is applied. Figure 2 shows an example of a switching notification message. Figure 1 (
In a), 1.2a, 2b, and 3 are data processing devices,
lc to 3'c are communication control processing units, 4 is a data line, and 5 is a data terminal device. In FIG. 1(b), 10 is a storage device, 14 is a main control circuit, 15 is an instruction execution control circuit, 16 is a power cut-off command circuit, 18 is a power supply circuit, 2
Reference numeral 1 indicates a line circuit, 22 an interface circuit, and 25 a modulation/demodulation device. Figure 1 (b) Denmihara J firing λJu ordinance No. 2 Figure 111 ÷) Kashima

Claims (1)

[Scope of Claims] Can be combined with one or more data processing devices and a plurality of data lines, and executes a communication control function by connecting to the plurality of data lines both under the control of the data processing device and independently. data that is connected via one or more data processing devices and a plurality of the above-mentioned data lines to a communication control processing device that is capable of powering off itself under the control of an internal program. coupling the terminal device, and
In a system in which a plurality of communication control processing devices are connected to each other by a data line to execute data processing, one of the plurality of communication control processing devices currently executing data processing is terminated when the data processing device completes data processing. The communication control processing device that has started executing the communication control function on FLJ Germany connects to all of the plurality of communication control processing devices connected to the data line, and performs data processing. The plurality of communication control processing devices are notified of the decoupling with the device by a communication message, and the plurality of communication control processing devices
The communication control processing device of C connects with the data processing device at 1N.
'. The power-off 1υi method is characterized in that the power is cut off all at once upon sensing that the power has been removed.