JPH0751627Y2 - Peripheral temperature abnormality detection system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a temperature abnormality detection system for a peripheral device that detects a temperature abnormality of various peripheral devices connected to a computer device via a signal cable. .

<Prior Art> Peripheral equipment connected to a computer device via a signal cable, such as a hard disk or a laser beam.
Conventionally, the following method has been used to detect a high temperature abnormality of a printer or the like.

That is, a temperature sensor is installed in each peripheral device to detect a high temperature abnormality, and the temperature abnormality detection signal is output as an external contact signal to provide an alarm signal.

<Problems to be Solved by the Invention> However, the conventional temperature abnormality detection method as described above has the following problems.

In the conventional method, if the temperature abnormality of the peripheral device is not sent to the computer device and the temperature abnormality is to be transmitted to the computer device, an external contact signal indicating the temperature abnormality is once input to the contact input circuit and then sent to the computer device. It must be transmitted and the system must be equipped with contact input circuits. Also, when the peripheral devices are connected to the daisy chain in a large number, the connection of external contact signals becomes complicated.

An object of the present invention is to solve the above problems, and it is an object of the present invention to enable a computer apparatus to perform unified processing for temperature abnormalities of peripheral devices.

<Means for Solving the Problems> The present invention, which has solved the above problems, is a temperature abnormality detection system for a peripheral device for detecting a temperature abnormality of various peripheral devices connected to a computer device via a signal cable. , A temperature abnormality detection circuit including a temperature sensor is installed inside the various peripheral devices, and a temperature abnormality detection signal output from the temperature abnormality detection circuit is wired or assigned and assigned as one signal in the signal cable, A temperature abnormality detection system for a peripheral device is characterized in that it is an interrupt signal to the computer device.

<Operation> In the peripheral device temperature abnormality detection system of the present invention, each peripheral device detects the temperature abnormality by itself, and the output temperature abnormality detection signal is given to the computer device as an interrupt signal via the signal cable. The computer device executes the process corresponding to the interrupt signal.

<Embodiment> Hereinafter, a temperature abnormality detection system for a peripheral device of the present invention will be described in detail with reference to the drawings.

In this figure, a computer device 1 serving as a host computer includes a first peripheral device 21 such as a hard disk HD and a second peripheral device such as a laser beam printer LBP via a bus cable B such as a SCSI bus. Connect to peripheral device 22.

The first peripheral device 21 includes a temperature sensor T1 such as a thermistor near the hard distor HD, an amplifier A1 that amplifies the output of the temperature sensor T1, and a transistor Tr1 that outputs the output result of the temperature sensor T1 as an open collector signal. A temperature abnormality detection circuit is provided. In this temperature abnormality detection circuit, when the temperature exceeds a certain level, the amplifier A1 drives the transistor Tr1 by the output of the thermistor T1.

Similarly, the second peripheral device 22 is a laser beam printer.
The thermistor T2 is provided near the LBP, and the temperature abnormality detection circuit including the amplifier 22 and the transistor Tr2 is provided.

Then, the outputs of the transistors Tr1 and Tr2, which are the temperature abnormality detection signals, are wired-ORed and sent to the traffic signal L in the bus cable B. If the bus cable B is a SCSI bus, one internal signal line L is pre-allocated for temperature abnormality detection. The signal derived to the signal line L is given to the computer device 1 as an interrupt signal IR.

The temperature abnormality detection system for a peripheral device of the present invention thus constructed operates as follows.

For example, assume that a temperature abnormality has occurred in the first peripheral device 21.

The thermistor T1 near the hard disk HD sends a high temperature signal, the transistor Tr1 is driven by the output of the amplifier A1, and a temperature abnormality detection signal is sent on the signal line L. The computer device 1 sends this temperature abnormality signal to the interrupt signal IR.
Then, the corresponding temperature abnormality processing is started.

Similarly, when a temperature abnormality occurs in the second peripheral device 22, the temperature abnormality detection signal is also given as an interrupt signal to the computer device 1 via the signal line L.

In this way, the temperature abnormality signal in each peripheral device can be sent to the computer device.

In the drawings, an example in which two peripheral devices are connected is shown, but the number of peripheral devices is not limited to two and may be two or more.

<Effect of Device> According to the temperature abnormality detection system for a peripheral device of the present invention, the following effects are obtained.

When the peripheral device detects the temperature abnormality by itself and notifies the computer device as an interrupt signal, unified processing can be performed for the entire system regarding the temperature abnormality.
For example, when the temperature abnormality signal is output to the outside, the interrupt signal can be taken out from the computer and used.

In addition, at the discretion of the computer device, the printer printing operation is
It is possible to automatically perform operation stop processing such as stop of the spindle motor of the disk.

[Brief description of drawings]

FIG. 1 is a diagram showing the configuration of a temperature abnormality detection system for peripheral equipment embodying the present invention. 1 ... Computer device, 21 ... First peripheral device, 22 ...
… Second peripheral, B …… Bus cable, L …… Signal line HD …… Hard disk, LBP …… Laser beam printer, T1, T2 …… Thermistor, A1, A2 …… Amplifier, Tr1 ,
Tr2 …… Transistor.

Claims (1)

[Scope of utility model registration request] 1. A temperature abnormality detection system for a peripheral device for detecting a temperature abnormality of various peripheral devices connected to a computer device via a signal cable, wherein a temperature including a temperature sensor inside the various peripheral devices. An abnormality detecting circuit is installed, and the temperature abnormality detecting signal output from the temperature abnormality detecting circuit is wired or ORed to be assigned as one signal in the signal cable, and is used as an interrupt signal to the computer device. Equipment temperature abnormality detection system.