JPH04149716A - Information processor - Google Patents

Abstract

PURPOSE:To store data without making any break of power supply actually by interrupting responding to a host computer or ending the function of a host data processing part when a power-ON command is received from the host computer. CONSTITUTION:The information processor 2 is provided with a power-OFF command processing means 20 which interrupts the responding to the host computer 1 or ends the function of the host data processing part 16 when the power-ON command is received from the host computer 1. Namely, the host computer 1 is made to recognize a power-OFF state and the data are stored without turning off the power source actually. Consequently, when a power-OFF command is received from the host computer 1, the storage of data can be performed without spoiling the states of other functions.

Description

[Detailed Description of the Invention] [Summary] Regarding an information processing device that is connected to a host computer and can be used for multiple functions, the host computer is made to recognize that the power is off, but the power is actually turned off. The purpose of the present invention is to provide an information processing device that is capable of storing data without performing any and which can be used for multiple functions, when a power-off command is received from the host computer, the information processing device interrupts the response to the host computer or terminates the function of the host data processing unit. The configuration is such that a power-off command processing means is provided.

[Industrial Application Field] The present invention relates to an information processing device that is connected to a host computer and can be used for multiple functions.

In recent years, information processing devices are required to have more processing functions. For this reason, information processing devices that can be used for multiple functions have been developed, rather than specialized machines that can be used only for one purpose. As a result, there are cases in which a device is using one function while another function is being used, and it is not possible to operate based on its own state judgment alone.

For example, if a power-off command is received from the host computer and the power is turned off, other functions in use are stopped and data cannot be saved.

[Prior Art] Conventionally, a workstation, which is a terminal of a host computer, has been a dedicated device that can be used only for its functions.

When a workstation, which is a dedicated device, receives a power-off command from a host computer, the workstation performs its own termination process and turns off the power. In addition, the host computer recognized that the workstation was powered off when the response from the workstation stopped.

However, if an information processing device that can be used with multiple functions has been developed and this equipment is used as a workstation, there will be cases where the workstation is being used for one function while another function is being used. Cases have arisen in which actions cannot be taken based on judgment alone.

[Problems to be Solved by the Invention] As shown in the flowchart of FIG. 8, when a workstation receives a power-off command from a host computer and performs termination processing on its own and turns off the power,
Other functions in use are stopped, data cannot be saved, and in the worst case, the power may be cut off while data is being created, or data saved in RAM may be lost. It was happening.

SUMMARY OF THE INVENTION An object of the present invention is to provide an information processing device that makes a host computer recognize that the power is off, but can save data without actually turning off the power. do.

“Means to solve problems” FIG. 1 is a diagram explaining the principle of the present invention.

In FIG. 1, 1 is a host computer, and 2 is a host data processing unit 1 that is connected to the host computer and receives, analyzes and processes data from the host computer 1.
When the information processing apparatus 20 receives a power-off command from the host computer 1, it interrupts the response to the host computer 1, or stops the host data processing. This is a power-off command processing means for terminating the function of the unit 16.

[Operation] In the present invention, when a power-off command is received from the host computer, the response from the host computer is interrupted or the function of the host data processing section is terminated, so that the host computer is kept in a power-off state. This makes it possible for the DJ to recognize that there is a device, and to be able to save data without actually shutting off the power.

Therefore, when receiving a power-off command from the host computer, it is possible to save data without impairing the status of other functions.

[Example] Embodiments of the present invention will be described below based on the drawings.

FIGS. 2 to 7 are diagrams showing one embodiment of the present invention.

In FIG. 3, 1 is a host computer, 2 is an information processing device as a workstation, and a plurality of information processing devices 12 are connected to the host computer 1. The information processing device 2 can be used for multiple functions such as a PO8 terminal, a word processor, etc.
It has a configuration as shown in the figure.

In Figure 4, 3 is a hard disk, 4 is a CRT, and 5 is a hard disk.
is a keyboard, and the hard disk 3, CRT 4 and keyboard 5 are connected to a hard disk interface section 6.
, a CRT interface section 7 and a keyboard interface section 8 to a bus 9. 10
is a CPU, 11 is a memory consisting of a RAM, and the CPU
IO and memory 11 are connected via bus 9.

Further, the bus 9 is connected to a connection slot 12.

A system program 13, application programs 14, 15, etc. are stored in the memory 11, and a host data processing section 16 shown in FIG. 2 is also stored.

In FIG. 2, 17 is a host data transmitting/receiving section connected to the host computer 1 via an input/output control section (not shown). Send data.

18 is a data analysis section, and the data analysis section 18 analyzes the data from the host data transmission section 17. 19 is a data processing section, and the data processing section 19 is a data analysis section 18.
Process the analyzed data. 20 is a power-off command processing section as a power-off command processing means, and when the data analysis section 18 analyzes that the data from the host computer 1 is a power-off command, the power-off command processing section 20 1 or interrupt the response to host data processing unit 1.
The process of terminating the function No. 6 is performed.

21 is a transmission data processing section;
transmits the transmission data from the data processing section 19 to the host data transmitting/receiving section 17.

Next, the operation will be explained.

First, a case in which a response to the host computer 1 is interrupted will be described based on the flowchart in FIG.

In FIG. 5, first, a power-off command is received from the host computer 1 in step S1. That is,
A power-off command from the host computer is received by the host data transmitting/receiving section 17, analyzed by the data analyzing section 18 as a power-off command, and sent to the power-off command processing section 20 of the data processing section 19.

Next, in step S2, the power-off command processing section 20 sends an interruption request signal to the host data transmitting/receiving section 17 via the transmission data processing section 21, requesting that the response to the host computer 1 be interrupted. Then, in step S3, the host data transmitting/receiving section 17 receives the interruption request signal from the power-off command processing section 20, and suspends the response to the host computer 1.

Next, a case in which the host data processing section 16 is terminated will be described based on the flowchart in FIG.

In FIG. 6, when a power-off command is received from the host computer 1 in step S11, step S1
In step 2, the power-off command processing section 20 performs processing to terminate the function of the host data processing section 16, thereby causing the host computer 1 to recognize that the power is off. However, in reality, the power is not turned off and other functions continue to be processed.

As shown in the flowchart of FIG. 7, the power-off is executed by receiving a power-off command from the host computer 1 in step S21, interrupting the response, and terminating the function of the host data processing unit 16 in step S22. After that, it is determined in step S23 whether the power can be turned off, and if it is possible, the power is turned off in step S24.

In this way, when a power-off command is received from the host computer 1, the response from the host computer 1 is interrupted or the function of the host data processing unit 16 is terminated. Although it is recognized as a status, data can be saved without actually turning off the power.

[Effects of the Invention] As explained above, according to the present invention, the host computer is made to recognize that the power is off without actually turning off the power, so data can be saved. You can fully utilize other functions.

[Brief explanation of drawings]

Fig. 1 is a diagram explaining the principle of the present invention, Fig. 2 is a diagram showing an embodiment of the invention, Fig. 3 is a system configuration diagram, Fig. 4 is a block diagram of the information processing device, and Fig. 5 is interruption processing. 6 is a flowchart of termination processing, FIG. 7 is a flowchart of power cutoff, and FIG. 8 is a conventional flowchart. In the figure, 1... Post computer, 2... Information processing device, 3... Hard disk, 4... CRT. 5...Keyboard, 6...Hard disk interface section, 7...
CRT interface unit, 8...keyboard interface unit, 9...bus, 10...cpu. 1.1...Memory, 12...Expansion slot, 13...System program, 14.15...Application program, 16.
...Host data processing section, 17.. Host data transmission and reception section, 18.. Data analysis section, 19.. Data processing section, 20.. Power off command processing section (power off command processing means), 21. ...Transmission data processing section.

Claims (1)

[Claims] In the information processing device, which is connected to a host computer (1) and has a host data processing unit (16) that receives, analyzes and processes data from the host computer (1), and can be used for multiple functions, When a power-off command is received from the host computer (1), the power-off command processing means (20) interrupts the response to the host computer (1) or terminates the function of the host data processing section (16). ).