JPH04367012A - Controller for temperature abnormality of computer - Google Patents

Abstract

PURPOSE:To protect date end to improve the reliability of a computer by preventing the destruction of the data end stopping the supply of a main power supply at occurrence of the temperature abnormality of the computer. CONSTITUTION:A temperature detection means 1 detects the internal temperature of a computer and outputs 8 temperature abnormality signal A if the detected temperature exceeds a level that assures the operating safety of the computer. Then a timer means 3 is added to output a signal B when a prescribed time passed after the signal A received from the means 1 is detected together with a shut-down processing means 5 which outputs a signal C after ending the processing of the computer under execution when the signal A is outputted from the means 1, and a control means 9 which cuts off the power supply to the computer when a signal is outputted from the means 5 or 3.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention detects the temperature inside a computer, and when the detected temperature reaches a temperature environment in which the operation of the computer cannot be guaranteed, the computer The present invention relates to a computer temperature abnormality control device that protects data by cutting off power supply to the computer.

0002

[Prior art] Figure 3 shows a conventional computer temperature abnormality control device.
This will be explained using FIG.

First, the control of the computer temperature abnormality control device will be explained using FIG.

In the figure, a temperature detector 15 constantly monitors the temperature inside the computer, and when the temperature of the computer exceeds the temperature guaranteed to operate according to the product specifications of the device, a temperature abnormality signal E is generated.
is output to breaker 17. When the temperature abnormality signal E is output to the breaker 17, the supply of the main power supply 19 is cut off, and the power supply section 21 stops supplying power to the CPU 23.

Next, the above operation will be explained using time charts shown in FIGS. 4(a) to 4(d).

The temperature detector 15 shown in (a) of the same figure detects the temperature inside the computer, and when the detected temperature exceeds a temperature T for guaranteeing the operation of the equipment of the computer, a temperature sensor 15 is activated. Outputs abnormal signal E. When the temperature abnormality signal E is output, as shown in (b) and (c) of the same figure, C
The PU 23 executes processing such as data writing during operation. At the same time, the breaker 17 shown in (d) trips due to the temperature abnormality signal E, but it is not easy to protect the data of the CPU 23.

[0007]

[Problems to be Solved by the Invention] However, the conventional computer temperature abnormality control device outputs a temperature abnormality signal E from the temperature detector 15 to the breaker 17 when the temperature inside the computer exceeds a temperature that guarantees the operation of the device. Although the power supply to the CPU 23 is stopped, there is a risk that the data of the CPU 23 may be destroyed, resulting in a problem of lowering the reliability of the computer.

The present invention has been made to solve these conventional problems, and its purpose is to prevent data from being destroyed and to stop the main power supply when a computer temperature abnormality occurs. An object of the present invention is to provide a computer temperature abnormality control device that protects data and improves computer reliability.

[0009]

[Means for Solving the Problems] In order to achieve the above object, the present invention detects the temperature inside a computer and outputs a temperature abnormality signal when the detected temperature exceeds a temperature that guarantees safe operation of the computer. a timer means for outputting a signal after a predetermined period of time when an abnormal temperature signal is detected from the temperature detecting means; The computer comprises: a shutdown processing means that outputs a signal after completing the processing; and a control means that cuts off power supply to the computer when the signal is output from the shutdown processing means or the timer means. shall be.

0010

[Operation] With the above-described structure, when the temperature detected inside the computer exceeds a temperature that guarantees the safe operation of the computer, the temperature detecting means outputs a temperature abnormality signal. When the temperature detection means outputs a temperature abnormality signal, the timer means outputs a signal after a predetermined time has elapsed. When a temperature abnormality signal is output from the temperature detection means, a signal is output from the shutdown processing means after the processing being executed by the computer is completed. When a signal is output from the shutdown processing means or the timer means, the power supply to the computer is cut off, so that it is possible to prevent data from being destroyed when an abnormal temperature occurs in the computer.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing control of an embodiment of the temperature abnormality control device for a computer according to the present invention.

The computer temperature abnormality control device is provided in the computer, and includes a temperature detector 1, a timer circuit 3, and a CPU.
5, has an OR circuit 7 and a breaker 9.

The temperature detector 1 detects the temperature inside the computer, and when the detected temperature exceeds the temperature required to guarantee operation according to the product specifications of the device, the timer circuit 3 and the CPU are activated.
A temperature abnormality signal A is output to 5.

When the temperature abnormality signal A is input from the temperature detector 1, the timer circuit 3 stores the main storage capacity of the computer system and the storage capacity of the magnetic disk etc. by the CPU 5 for a predetermined period of time.
The temperature abnormality signal A is output to the OR circuit 7 after a period of time that is more than the time taken into account the end time of processing such as data writing.

When the CPU 5 receives the temperature abnormality signal A from the temperature detector 1, it outputs a signal C indicating the end of the process to the OR circuit 7 after performing a shutdown process to end the process currently being executed.

The OR circuit 7 connects the timer circuit 3 and the CP
The logical sum of U5 is taken, and the signal B from the timer circuit 3 is
Or when signal C from CPU5 is input, breaker 9
Outputs a cutoff signal D to trip the circuit.

The breaker 9 supplies the main power 11 to the power supply unit 13 when the temperature of the equipment in the computer is normal, and the OR circuit 7
When a cutoff signal D is input from the main power source 11, a trip is performed to cut off the supply of the main power source 11.

Next, the operation of this embodiment will be explained using the time chart of FIG.

First, after powering on the computer, the system starts up and the CPU 5 starts processing, and the temperature detector 1
detects the temperature inside the computer. The temperature sensor 1 is
As shown in (a), when the temperature inside the computer is detected and the detected temperature exceeds the temperature T for guaranteeing the operation of the device, a temperature abnormality signal A is sent to the timer circuit 3 and CPU 5 as shown in (b). Output. When the temperature abnormality signal A is input, as shown in (e), the timer circuit 3 starts counting the timer and writes data of the CPU 5 to the main storage capacity of the system and the storage capacity of the magnetic disk etc. for a predetermined period of time. Count up to a time that is more than the time that takes into account the processing end time. After the predetermined time has elapsed, the timer circuit 3 outputs the signal B to the OR circuit 7.

On the other hand, when the temperature abnormality signal A is inputted from the temperature detector 1 as shown in (c), the CPU 5 starts a shutdown process to finish the process currently being executed, and after the shutdown process is finished, the CPU 5 starts the shutdown process. A signal C is output to the circuit 7. As a result, the data of the CPU device is guaranteed as shown in (d).

The OR circuit 7 outputs a cutoff signal D to the breaker 9 when the signal B from the timer circuit 3 or the signal C from the CPU 5 is input. The breaker 9 trips to cut off the supply of the main power source 11 to the power supply unit 13 when the cutoff signal D is input from the OR circuit 9, as shown in FIG. In this case, signal B from timer circuit 3 or CPU
The breaker 9 trips when either of the signals C from the breaker 5 is outputted earlier.

[0023] Accordingly, if an abnormality occurs in the temperature of the computer, the main power is cut off after the shutdown processing is completed, so that data in the CPU 5 can be prevented from being destroyed.

[0024]

Effects of the Invention As explained above, in the present invention, when the temperature of the computer exceeds a predetermined temperature, the main power supply is cut off after finishing the process being executed. By preventing damage to the computer and stopping the main power supply, data can be protected and computer reliability can be improved.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing control of an embodiment of a temperature abnormality control device for a computer according to the present invention.

FIG. 2 is a time chart showing the operation of the present invention.

FIG. 3 is a block diagram showing control of a conventional computer temperature abnormality control device.

FIG. 4 is a time chart showing conventional operation.

[Explanation of symbols]

1 Temperature detector 3. Timer circuit 5 CPU 7 OR circuit 9 Breaker

Claims (1)

[Claims] Claim 1: Temperature detection means that detects the temperature inside the computer and outputs a temperature abnormality signal when the detected temperature exceeds a temperature that guarantees the safety of the operation of the computer, and a temperature abnormality signal that is output from the temperature detection means. a timer means for outputting a signal after a predetermined time has elapsed when detected; and a shutdown processing means for outputting a signal after terminating the process being executed by the computer when an abnormal temperature signal is output from the temperature detection means. 1. A temperature abnormality control device for a computer, comprising: a control means for cutting off power supply to the computer when a signal is output from the shutdown processing means or the timer means.