JPH03217921A - Electronic equipment - Google Patents

Abstract

PURPOSE:To automatically apply a power source and to enable inexpensive telephone line charge at midnight to be utilized by providing a means by which the power source can be applied at designated time by the instruction of an application program. CONSTITUTION:A function which outputs an on-signal when designated time arrives is attached on a real time clock (RTC) 6. An operator starts up a device before returning to home, and processes input data for that day, a generates transmission data. At this time, a time to apply the power source(time zone where inexpensive telephone charge is applied) is set, and a program is set at a warm start mode. When the designated time arrives and the power source is automatically applied. line connection processing is performed, and data is transmitted. When the transmission of the data is completed, line cutoff processing is performed, and the program is set at a cold start mode.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides the following features:
The present invention relates to an electronic device that is configured to be powered on at a predetermined time with respect to a terminal device such as a handy terminal that communicates data.

[Prior Art] In general, miniaturization technology has advanced in recent years for handheld terminals and other devices that connect to a host computer for data communication, and these devices also have built-in modems, or are powered by power from these devices. A small modem that can receive and operate the system has been realized. It also became possible to take a handy terminal to a remote location, input data, and send the contents to a host computer using a telephone line.

[Problem to be solved by the invention] However, since the power of conventional small computer devices such as handheld terminals is manually turned on, human intervention is always required when using the small computer devices. .

On the other hand, when transmitting data using a telephone line, communication costs can be reduced by communicating at night when telephone charges are lower.

However, this requires an operator to perform the operation, which has the disadvantage of increasing labor costs.

[Means for Solving the Problems] As a configuration for solving the above problems, the present invention provides an electronic device of a computer terminal that outputs data stored in a memory by connecting to a host computer, which includes a clock means and a clock means. The system includes a power control means controlled by a timer, and a communication means for communicating data when the power control means is on, and outputs a power-on signal at a time preset by the timer. A configuration is adopted in which the power source is set to the on state, and the communication means is operated to output data.

[Function] According to the present invention, by providing a means for turning on the power at a time specified by an instruction from an application program, it is possible to take advantage of low telephone line charges late at night, and there is no need for operator intervention. The power can be turned on automatically without any need.

[Example] Next, the content of the present invention will be explained based on an example shown in the drawings.

FIG. 1 is a circuit block diagram of a handy terminal to which the present invention is applied. In the figure, 1 is a CPU (central processing unit) that controls the system, 2 is a keyboard for inputting data, 3 is a display that displays input data and processing results, and 4 is a power supply control that controls the power of the system. circuit, 5 is the main battery that supplies power to the entire system, 6
is a real-time clock (RT) that counts the time.
C).

The RTC 6 is provided with a function of outputting an on signal at a specified time. This can be easily achieved using a 4-bit CPU capable of low power consumption and low voltage operation.

Reference numeral 7 represents a backup battery to continue counting the time even when the main battery 5 is exhausted, and 8 represents a main memory for storing application programs and data, the contents of which are also backed up by the secondary battery 7. 9 is a system ROM (read only memory) that stores programs for controlling the system, and 10 is a modem for communication using the telephone line 10a.

FIG. 2 is a block diagram showing the inside of the power supply control circuit 4 shown in FIG. 1. As shown in FIG. In Figure 2, 11 is NOR
Gate, 12 is a power supply switching transistor, 13
is the power switch.

When the power is off, the power switch 13 is opened and the XRTC
The on signal from 6 is also 0. Therefore, NOR gate 1
The output of 1 becomes 1, the switching transistor 12 is in an off state, and the output of the main battery 5 is cut off. When the power switch ζ 13 is turned on in this state, the NOR gate 11 - one (lower side)
Since the human power becomes 1, the output becomes 0, the switching transistor 12 is turned off, and the output of the main battery 5 is supplied to the system. Further, when the ON signal from the RTC 6 becomes 1 in the power-off state, the output of the NOR gate 11 becomes 0, and the switching transistor 12 is also turned on, so that the output of the main battery 5 is supplied to the system. Third
The figure shows a real-time clock (RTC) that uses a 4-bit CPU and has the function of outputting an on signal at a specified time.
) is a processing flowchart.

In FIG. 3, step S1 is RTC, step S2
is a process of counting down one second from the operating clock, and when one second has elapsed, the process advances to step s3. The time information' is counted up by 1 second. In step S4, the power-on time is compared with the power-on time instructed in advance by the application program on the main memory 8. If they do not match, the process ends in step s6, but if they match, the process proceeds to step S5, where the power-on signal is turned on and the process proceeds to step S6.

FIG. 4 is a flowchart of an application program that utilizes the present invention to transfer data using a telephone line during the night when telephone charges are low.

! 4(A) is a process that is started before the operator returns home to prepare for communication. Starting in step S7, the input data of the day is processed in step S8 to create data for transmission. In step S9, set the time period when telephone charges are low, that is, the time to turn on the power, and in step SIO
Sets the program to warm start mode, where it will continue running the next time the power is turned on. Then, in step Sll, the power is turned off. FIG. 4(B) shows the process that is started by the automatic start function when the power source is automatically turned on, and when the power source is automatically turned on in step 512, the process is started in step 313. Performs line connection processing. Then, data is transmitted in step S14.

When the data transmission is completed, the line is disconnected in step S15, the next power start is set to a cold start mode executed from the beginning of the program in step S16, and the power is turned off in step S17.

As explained above, according to this embodiment, when outputting data from a computer terminal device such as a handy terminal to a host computer, the operator can utilize the night time when call charges are low without having to work overtime. This makes it possible to prevent waste of personnel expenses and communication costs.

[Effects of the Invention] As explained above, according to the present invention, the power of the handy terminal can be turned on even when the operator is not present, so data can be sent from a remote location at night when call charges are low. Personnel costs and communication costs can be kept low.

[Brief explanation of drawings]

FIG. 1 is a circuit block diagram of a handy terminal according to an embodiment of the present invention, FIG. 2 is a configuration diagram of a power supply control circuit according to the present invention, and FIG. 3 is a flowchart for realizing RTC according to the present invention. , FIGS. 4(A) and 4(B) are flowcharts of an application program according to the present invention. In the figure, 1... CPU 2... Keyboard 3... Display 4... Power control circuit 5... Main battery 6... Real time clock 7... Sub battery 8... Main Memory 9...System ROM 10...Modem Fig. 1 Circuit block diagram of handy terminal ＼ U) Fig. 3 Flowchart for realizing RTC

Claims (1)

[Scope of Claims] An electronic device of a computer terminal that outputs data stored in a memory by being connected to a host computer, comprising: a clock means, a power control means controlled by the clock means, and a power control means for controlling the power supply control means. and a communication means for performing data communication in an on state, outputting a power on signal at a time preset by the clock means to turn on the power of the system and operating the communication means. An electronic device characterized by outputting data.