JPS6363239A - Power source controller in information network terminal - Google Patents

Abstract

PURPOSE:To raise availability, to reduce power consumption and to contrive to improve reliability by analyzing a transmission signal and a reception signal and supplying or disconnecting a power source according to instructions from an analysis means if the analized signal is a transmission start signal or a reception end signal. CONSTITUTION:An information signal transmitted from a host computer l is transmitted to a computer on a terminal side 5 and simultaneously to the analysis means 63 through a transmission signal reception means 61. When a signal giving a signal for starting transmission coincides with an ON instruction code, an instruction signal supplying a power source is outputted to a data means 64 to supply it. Then the transmission end signal is fetched to the analysis means 63 through the transmission signal reception means 61. When said signal coincides with an OFF instruction code, a return signal from the computer on the terminal side 5 is received. When the return signal is affirmative for the instruction to cut a power source, an instruction signal cutting power supply is outputted to an output means 64 to cut a power source.

Description

[Detailed Description of the Invention] A. Field of Industrial Application The present invention relates to a power supply control device for an information network terminal, and its purpose is to keep the receiving side communication device in a state of constant power supply in a communication information network system. At the very least, power is supplied only when the transmitting communication device is safe, automatically making online operation possible.

BACKGROUND ART In a conventional communication information network system, mutual communication is possible only when power is supplied to both the transmitting side communication device and the receiving side communication device.

Therefore, before communicating, it is necessary to supply power to both parties.

Therefore, when there is a scheduled communication, the power is supplied each time and then one communication is performed.

C. Problems to be Solved by the Invention As described above, in conventional communication information network systems, even if only the transmitting side communication device is unilaterally enabled for communication, the receiving side communication device is not in a standby state. Communication is impossible. However, in order to make effective use of the receiving side communication equipment, for example, during the daytime when information exchange is concentrated, it must be used for time-consuming information processing tasks such as information analysis and calculations, and when communication lines are not often used and operators are not available. It is desirable to receive information during certain nights or holidays, and even when transmitting information, it is reasonable to do so late at night when usage fees for communication information network systems are low. However, in such a case, the receiver's communication device must be turned on and kept on standby so that it can communicate at all times.As a result, internal electronic circuits and terminal devices such as CRT displays, etc. Not only does it cause deterioration, but external noise can cause stored information to disappear, memory loss, and various other problems.
Therefore, it was practically impossible to receive automatic reception without turning on the receiver's communication device at night or on holidays when black people were present.

2. Means for Solving the Problems In order to solve the above-mentioned problems, the power supply control device of the present invention can operate even when a TL source is not supplied to the receiving side communication device 2. As soon as information is transmitted from the sending side communication device, power is supplied to the receiving side communication device, and after the communication is completed, the power is cut off to the receiving side communication device (1 side communication device) to ensure complete automatic reception of information. It is connected between the transmission path of the receiving modem and the receiving communication device in the communication information network system between the sending side communication device and the receiving side communication device, which are directly connected by a communication line, and the sending side communication a transmission signal receiving means for receiving a transmission signal from the device; a reply signal receiving means connected between the receiving (11m communication device) and the return path of the receiving side modem to receive a reply signal from the receiving side communication device; an analyzing means for analyzing whether the transmitted signal and the received signal are genuine transmission start signals or reception end signals, respectively; It is comprised of an output means that supplies or cuts power accordingly.

E. Operation: Always supply power to the receiving side communication device and wait for communication jb
Power is automatically supplied to the receiving side communication device only with the transmission υR start signal, and the power is automatically cut off after communication ends, so even if you do not have to use it during breaks or on holidays, there is no need to worry! Information can be exchanged reliably even with g.

To explain the unissued IJ1 of the embodiment based on FIG. A host computer 5 is a terminal computer which is a receiving communication device, and both include a host modem 2 which has the ability to modulate and demodulate signals, and a terminal which also has the function to demodulate and modulate signals. 6 is a power control device in the information network terminal of the present invention, which is directly connected to the side modem 4 and the communication line 3;
A transmission signal receiving means 61 is connected between the terminal side modem 4 and the terminal side computer 5 so as to be able to receive the transmission signal from the host computer 1, and is capable of receiving a reply signal from the terminal side computer 5. The output means 6 is composed of a reply signal receiving means 62 connected to a power source, an analysis means 63 for analyzing both of the received signals, and an output means 64 for supplying or cutting off power according to a command from the analysis means.
The plug 51 of the terminal computer 5 is inserted into the AC' core outlet 65 dedicated to the terminal side computer provided in the terminal computer 4 for connection.

In addition, the power supply control device 6 has two command code setting switches connected to a set of input terminals so that it can be used with any model in response to transmission start signals and reception end signals that differ depending on the model. There is. They are the ON command code setting switch 67 that sets the command code of the transmission start signal.
and an OFF command setting switch 68 for setting the command code of the reception end signal, and each command code is input to the input means 66.
The data is taken into the analysis means 63.

The transmitting side communication device 1 and the receiving side communication device 5 are, for example, microcomputers, facsimile machines, etc., and the communication line 3 is a normal public communication line or a private communication line.

First, as a preparation before starting communication, in order to make it compatible with a predetermined model of terminal side computer, the command code of the transmission start signal to supply power to the terminal side computer 5 is turned on.
Manually input the command code from the command code setting switch 67, and also manually input the command code of the reception end signal for cutting off the power from the OFF command code setting switch 68. A set of command code setting switches, which are input into the analysis means 63 via the means 66, may be used to respectively input the command code for supplying the heart source and the command code for cutting the power source by switching them.

If the use is limited to a single model, the instruction code may be set in advance by hardware, and in that case, the manual means 66, the ON instruction code setting switch 67, and the OFF instruction code setting switch 68 are unnecessary. Become.

Information is transmitted from the host computer to the terminal computer as follows.

An information signal transmitted from the host computer 1 is first modulated by the host modem 2, transmitted through the communication line 3, sent to the terminal modem 4, and demodulated.

The demodulated information signal is then transmitted to the terminal side computer 5 and at the same time is also transmitted to the analysis means 63 via the transmission signal receiving means 61.

Next, the analysis procedure by the analysis means 63 will be explained based on the flowchart of FIG.

When power is supplied to the power supply control device 6 of the present invention, initial settings such as initialization of the LSI are first performed in step S1.

Next, in step S2, this step is repeated to determine whether or not a signal signal indicating that some kind of transmission is to be started has been issued from the host computer 1, and an input is waited for.

If there is a signal to start transmission from the host computer 1, the process advances to step S3, where the transmission signal is taken in. In step S4, it is determined whether a series of data transmissions (in this case, the transmission start signal) has been completed. Step S3 and Step S4 are repeated until data transmission is completed, data is completely captured, and the process proceeds to Step S5.
In step 5, the terminal side computer 5 checks whether the imported data is data that can be processed 71 or not, and performs operations such as parity checking. The stored data is cleared and the transmission standby state is entered again in step S2.

If the data is processable, proceed to step 7 S6, but
A determination is made as to whether or not the address matches the address of the terminal computer 5. If the address does not match, the process jumps to step S9, the data is similarly cleared, and the process returns to step S2. If the address matches the address of the terminal side computer 5, it is determined that the information is to be sent to this terminal side computer 5, and the process proceeds to step S7, where the ON instruction code is first entered from the ON instruction code setting switch via the input means. A judgment is made as to whether or not the instruction code (ON instruction code) for supplying the power is matched. If they do not match, the process proceeds to step SIO, which will be described in detail later.

If it matches the ON command code, a command signal for supplying power to the AC power outlet 65 is issued in step S8, and then data is cleared in step S9 and the process returns to step S2.

The output means 64 receives the command signal issued in step S8 and supplies power to the AC power output outlet 65.

In this way, the terminal side computer becomes energized and information can be exchanged.

In this manner, when all the information has been transmitted from the host computer 1, a signal indicating the end of transmission is transmitted from the host computer 1, and this signal is also taken into the analysis means 63 via the transmission signal receiving means 61.

The transmission end signal taken into the analysis means 63 is processed in the same manner as in the case of power supply up to step S6 in the flowchart of FIG. 2, and then the process proceeds to step S7.

In step S7, since it does not match the ON instruction code, the determination is No, and the process proceeds to step s10, where the O
If it does not match the power cut command code input from the FF command code setting switch 68, the data is cleared in step s9 and the process returns to step S2.

If they match, the process proceeds to the step of receiving a reply signal from the terminal side computer 5 via the reply signal receiving means 62 and determining the reply signal.

Step Sll to step S14 is step S2 when determining the transmission signal from the host computer l.
to step S5, and if the reply signal is normal, the process advances to step S15.

In step 315, it is determined whether the received reply signal is an affirmative response to the power cut command from the host computer l, and if it is not an affirmative response, the process jumps to step S9, the data is cleared, and the process returns to step S2. . 6. In the case of a constant response, outputting a command signal to the output means 64 to cut off the power supply to the AC power output outlet 65;
In response to this signal, the power of the AC power output outlet 65 is turned on.

This completes all information transmission.

In the above embodiment, an example of communication was explained in which the receiving communication device receives transmission data from the transmitting communication device. Communication in which data is retrieved from the sender's communication device by calling is also possible.

G. Effect By using the power supply control device of the present invention, information can be exchanged arbitrarily with a communication device that is not in a communication standby state, and the power is cut off when communication is completed, so power consumption can be significantly reduced.

Furthermore, communication can be carried out freely even when no one is present, such as at night or on holidays. Therefore, in an information network consisting of a large number of communication devices, by performing nighttime communication, it is possible to increase the operating rate of the devices, and since the power is turned on when necessary, deterioration of internal electronic circuits and CRT displays etc. can be prevented. It can be prevented.

If the instruction code does not match, there is no power supply or power cut to the receiving communication device, especially in systems where the power to the terminal computer is cut off by a unilateral command from the host. If processing is delayed for some reason, there is a risk that the transmitted information will be destroyed.In contrast, reliable information transmission can be ensured by checking the reply signal from the terminal computer and turning off the power.

Furthermore, there is no risk of malfunctions caused by noise or the like, or of information from other receiving communication devices being erroneously transmitted.

In this way, it is possible to save labor both in terms of operation rate and power consumption, and since information is reliably transmitted to the corresponding receiving side communication device, reliability is greatly improved, and this will greatly contribute to the development of communication information network systems. This will make a significant contribution.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the relationship between each means of a power supply control device in an information network terminal, a transmitting side communication device, and a receiving side communication device, and FIG. 2 is a flowchart of an analysis procedure by an analysis means.

Claims (1)

[Scope of Claims] 1. In a communication information network system between a transmitting side communication device and a receiving side communication device that are directly connected via a communication line, a transmitting side communication device connected between a receiving side modem and a transmission path of the receiving side communication device, a transmission signal receiving means for receiving a transmission signal from the communication device; a reply signal receiving means connected between the receiving communication device and the receiving modem to receive a reply signal from the receiving communication device; Analyzing means for analyzing whether the transmitted signal and the received signal are genuine transmission start signals or reception end signals, respectively; and, if the analyzed signals are genuine transmission start signals or reception end signals, 1. A power supply control device for an information network terminal, comprising: an output means for supplying or cutting off power; 2. The analysis means includes input terminals for command codes of the transmission start signal and reception end signal that are set arbitrarily, and an analysis means for comparing the command codes input from the input terminals with the command codes of the received signals. 2. A power supply control device for an information network terminal according to claim 1, further comprising input means for inputting a transmission start signal and a reception end command code.