JPH0454507Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) This invention relates to an uninterruptible power supply interface suitable for use with uninterruptible power supplies such as personal computers.

(Prior Art) Conventionally, when a computer such as a personal computer is in operation, a power failure such as a power outage or an abnormal voltage drop in the commercial power supply destroys computer software or programs, such as data files, etc. In order to prevent this, an uninterruptible power supply is installed between the commercial power source and the computer to address the above problems. In other words, if an uninterruptible power supply is used and the operator is on duty, there will be fewer problems even if a power outage occurs.

(The problem that the invention attempts to solve) However, the above situation is not necessarily the case.
Problems may occur when the operator is not at work, when the computer is operated unattended in an unmanned factory late at night, or even under normal circumstances when the operator temporarily leaves his/her seat for a short period of time during operation. It was hot.
In other words, if a power failure such as a power outage occurs while the operator in charge is away from a computer such as a personal computer, and the power outage continues for a relatively long time,
For example, if it lasts for more than 10 minutes, even if the power goes out, the computer will continue to operate normally without being backed up, and the battery capacity of the uninterruptible power supply will eventually be exceeded, causing the uninterruptible power supply's battery to drain. There were problems such as damage to the Also, even if the battery is within the capacity, there is no effect, and battery operation may be uneconomical compared to using a commercial power source.

In view of the above, an object of the present invention is to provide an uninterruptible power supply interface that prevents damage to the uninterruptible power supply even when a computer is operated unattended, and improves the economy of battery use.

(Means for solving the problem) When the uninterruptible power supply interface of the present invention receives a power outage signal from the uninterruptible power supply and detects the power outage state, the uninterruptible power supply interface of the present invention detects the power outage state by using RS232C, a light pen, or a mouse. Notification is sent to an electronic device, etc. that has a programming function via a signal line, and the electronic device, etc. that has a programming function
The feature is that the current on the power line is cut off when a power down notification is received via the RS232C signal line or a set time has elapsed.

(Function) The uninterruptible power supply interface of this invention is used by being placed between the uninterruptible power supply and a computer such as a personal computer, as shown in FIG. In other words, each device is connected in the following order: uninterruptible power supply → uninterruptible power supply interface of the present invention → equipment such as computers. Before explaining the situation in which the commercial power supply fails, first, The explanation will start from a normal state without a power outage. That is, the power input terminal is connected to the power output terminal of the uninterruptible power supply, and then connected to the output terminal of the power failure detection circuit of the uninterruptible power supply and the power failure input terminal of the uninterruptible power supply interface of the present invention. However, in this state, the uninterruptible power supply interface of this invention is loaded with a program as shown in Figure 2, so the current cut-off means is closed and the current is directly output to the power output terminal via the through circuit. There is no output to the RS232C terminal, line pen signal line terminal, or mouse signal line terminal. Said
Either the RS232C terminal, the light pen signal line terminal, or the mouse signal line terminal is connected to a computer, etc., as described above, and on the other hand, the computer, etc. is given a program as shown in Figure 4. Since there is no output to the aforementioned RS232C terminal, light pen signal line terminal, and mouse signal line terminal, there is no power failure notification due to interruption, and therefore the normal processing shown in FIG. 4 is executed.

If there is a power outage, the power input terminal will be in a state of no voltage or voltage drop, and if there is a power outage signal at the power outage input terminal, a power outage will be reported via the RS232C terminal, light pen signal line terminal or mouse signal line terminal. is output to the computer. When a power outage is reported as described above, the program shown in FIG. 4 in a computer such as a personal computer executes emergency evacuation of the file and then closes the file. When the process is completed, the PC outputs a power-down instruction via the RS232C terminal. Upon receiving this instruction, the uninterruptible power supply interface of the present invention opens its built-in current cut-off means. do. If the RS232C signal line is not used, the current cutoff means similarly cuts off the power supply line even after the set time has elapsed.

(Example) Next, an uninterruptible power supply interface according to an embodiment of this invention will be described with reference to the drawings.

FIG. 1 is a block diagram of an uninterruptible power supply interface according to an embodiment of the present invention, and FIG. 2 is a flowchart showing an algorithm of a program installed in the uninterruptible power supply interface of the present invention.
Figure 3 is a block diagram 4 explaining its usage.
The figure is a flowchart showing the algorithm of a program used on the personal computer side, for example.

1 and 3, reference numeral 1 denotes a power input terminal of an uninterruptible power supply interface 2 of the present invention, into which the power output of the uninterruptible power supply 3 is input. Reference numeral 4 denotes a through circuit, in the middle of which a current cutoff means 5 such as an electromagnetic relay is provided. When this current cut-off means is closed, the input current is output as is to the power output terminal 6, but the power input terminal of a pan controller, FA equipment, etc. 7 is connected to this current output terminal 6. . Reference numeral 8 denotes a power failure input terminal, which is connected to a power failure signal output terminal, etc., which most of the uninterruptible power supplies 3 have. A microprocessor 9 is operated by a power supply 10, and its memory 11 is loaded with a program based on the algorithm shown in FIG. Ace or mouse interface is transmitted or communicated with to operate or control the current cut-off means 5. In actual use, for example, a program with an algorithm shown in FIG. 4 is executed on the personal computer side in contrast to the program shown in FIG. 2 used in the microprocessor 9. 12 is RS232C interface,
13 is a light pen interface, and 14 is a mouse interface, which performs parallel-to-serial conversion of signals and inputs and outputs them to an RS232C terminal 15, a light pen signal line terminal 16, or a mouse signal line terminal 17. The RS232C terminal 15, light pen signal line terminal 16 and mouse signal line terminal 17 are connected to the RS232C terminal, light pen terminal or mouse signal line terminal of a personal computer or the like.

(Effects of the invention) The uninterruptible power supply interface of this invention is configured as described above, and even if a power outage occurs in the middle of processing, such as when a file is open, the file is automatically closed. After the file closes, it receives power-down support and cuts off the through circuit in the uninterruptible power supply interface of this invention, so that even if a computer such as a personal computer is left unattended, the software will not be destroyed. It is possible to operate the battery, and damage to the battery can be avoided, which has a remarkable effect in industry.

[Brief explanation of drawings]

Fig. 1 is a block diagram of one embodiment of the uninterruptible power supply interface of this invention, Fig. 2 is a flowchart showing the algorithm of the program installed in the interface, Fig. 3 is an explanatory diagram of the usage situation, FIG. 4 is a flowchart of an example of the algorithm of a program executed on a personal computer or the like. In the figure, 1... power input terminal, 4... through circuit, 5... current cut-off means, 6... power output terminal, 8... power failure signal input terminal, 9... microprocessor, 15... RS232C terminal , 16...
...Light pen signal line terminal, 17...Mouse signal line terminal.

Claims (1)

[Scope of utility model registration request] In a system in which an electronic device having a program function and an uninterruptible power supply are installed, an RS232C signal line, a light pen signal line, or a mouse signal is provided between the uninterruptible power supply and the terminal device to connect the electronic device to an RS232C signal line, a light pen signal line, or a mouse signal line. an interface and each of the signal line terminals for reporting a power outage via a wire; a timer that starts operating upon detection of a power outage from the uninterruptible power supply and whose setting time is variable;
Current cut-off means that cuts off the current supply from the uninterruptible power supply after receiving a power-down notification via an RS232C signal line or after the set time of the timer, detecting the power outage, and reporting from each of the signal line interfaces. An uninterruptible power supply interface comprising a microprocessor that receives and controls the current cutoff means and operates the current cutoff means.