JPH01112415A - On-line repairing system - Google Patents

Abstract

PURPOSE:To prevent adverse influence from giving to an electronic device during operation by being equipped with a power on resetting circuit which goes to a low level when the voltage is lower than the specified voltage in an electronic circuit package and goes to a high level when the voltage becomes the specified voltage. CONSTITUTION:When a power source module B1 is troubled and a power source output goes to a specified voltage or below, a power resetting circuit is operated in an electronic circuit package A1 is operated, a low level signal is generated and a signal interface with a mother board E is locked. A power source control module makes a power source defined signal into a low level a little later. Next, a power source module B1 is exchanged while a power source cable C1 and a signal cable J1 are removed. When the power source module B1 is replaced and the power source module B1 is inputted by a switch K1 of the power source control module, the lock of the interface part of the electronic circuit package A1 is released and incorporated.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is an online repair type electronic device that enables maintenance and replacement of electronic circuit packages constituting the electronic device while the electronic device is energized or in operation. Regarding repair methods.

[Conventional technology]

Conventionally, this type of online repair power supply has been able to connect the electronic circuit package, which is a unit of maintenance, to the motherboard by changing the length of the contact in the insertion/removal direction to create a sequence of connections. It enabled maintenance and replacement of electronic circuit packages while online.

[Problem that the invention seeks to solve]

The power supply device described above can be maintained and replaced by modifying the structure of the connector, and this depends largely on the skill of the maintainer.

In other words, during online repair, if the electronic circuit package is not inserted or removed smoothly, failures may occur due to chattering or sudden changes in signal level at the time of insertion or removal, which may cause damage to the electronic device during operation. It has the disadvantage of having a negative impact on

[Means for solving problems]

The online repair method of the present invention includes a power supply module that independently supplies power to an electronic circuit package constituting an electronic device, a power supply control module that controls this power supply module, and a power supply module and a power supply control module that separately supply power to an electronic circuit package constituting an electronic device. power supply confirmation signal transmission and control power supply means used between the power supply control module and the electronic circuit package; and a power supply means used between the power supply module and the power supply module, and further includes a switch for turning on and off the power for each of the power supply modules mounted on the power supply control module, and a power supply means for turning on and off the power for each of the power supply modules. The lamp shown has a power-on reset circuit used within the electronics package as well as the lamp shown.

〔Example〕 .

Next, the present invention will be explained with reference to the drawings.
- FIG. 1 is an actual diagram showing one embodiment of the present invention. F is an electronic device rack, Al, A2 and An are electronic circuit packages,
Bl, 'B2 and B are power supply modules, C1, C2 and Cfl are power cables, Di, D2 and J
l, J2 and Jn are signal cables, E is motherboard,
G is the power supply rack, H is the power supply control module, Kl, 2
and , are switches, and LL, L2 and Lfl are lamps.

Power module B1. B2 and B are power cables C1°C2 and Cn, respectively, for the electronic circuit package.
and supply power independently via the motherboard. The power supply control module H has signal cables Di, D2 and Dfi.
through electronic circuit packages Al, A2 and Ao, respectively.
Supplies a power supply confirmation signal and control power to the Furthermore, the power supply control module H supplies power on/off signals to the power supply modules Bl, B2, and BI via the signal cables Jl, J2, and Jn, respectively, and also supplies power on/off signals from the power supply modules Bl, B2, and Bll. Receive the status signal.

FIG. 2 is a timing explanatory diagram regarding the output of the power supply module and the power confirmation signal.

Next, if one or more electronic circuit packages suddenly stop working, the electronic device consisting of the electronic circuits Al, A2, and A in FIG.
Assuming that the functions of the electronic device can be maintained to a certain extent, a maintenance method in the case where the electronic circuit package A1 breaks down will be explained with reference to FIGS. 1 and 2.

The maintenance person starts a power-off procedure for the power supply control module by pressing 1 on the switch on the power supply control module H corresponding to the electronic circuit A1. As shown in Figure 2, the power supply control module first sends a power confirmation signal to the electronic circuit package via the control cable D1, and the electronic circuit package uses this signal to lock the signal interface with the motherboard. Next, the power supply control module H sends a power cut signal to the power supply module B1, and this signal causes the power supply module B1 to:
Stop power output.

Next, with the signal cable D1 still connected,
The electronic circuit package A1 is separated from the electronic device rack F and replaced with maintenance supplies. After connecting the signal cable D1 to the non-defective electronic circuit package A1, it is assembled into the electronic equipment rack F, and the switch of the power supply control module H is connected to the signal cable D1.
Turn on the power supply module B1. The sequence at the time of power-on is as shown in FIGS. 2(a) and 2(b), and after the power confirmation signal becomes high level, the electronic circuit package A1 is functionally incorporated into the electronic device.

Next, a maintenance method when the power supply module B1 breaks down will be explained with reference to FIGS. 1 and 2.

The power supply module B1 has failed and the power output has stopped as shown in Figure 2 (C).
When the point D is reached, the power reset circuit in the electronic circuit package Al operates and immediately generates a low level signal as shown in FIG. 2(d) to lock the signal interface with the motherboard. The power supply control module H normally sets the power supply confirmation signal to a low level after a short delay as shown in FIG.
Replace power supply module B1 with a good one. After connecting the power supply cable C1 and the signal cable J1 to the power supply module B1 which has become a good product and mounting it on the power supply rack, the power supply module B1 is turned on by turning on the switch 1 of the power supply control module H.

The sequence at the time of injection is shown in Figure 2 (d) and (e).

As shown in (f), the output of the power-on reset circuit in the electronic circuit package A1 and the power supply control module H
With the OR of the power confirmation signal from the electronic circuit package A1
The interface part of the electronic circuit package A1 is then unlocked and the electronic circuit package A1 is then functionally integrated into the electronic device.

Note that the electronic circuits Al, A2. As the power-on reset circuit used in A, the power-on reset circuit disclosed in Japanese Patent Application Laid-Open No. 147822/1983 can be used.

〔Effect of the invention〕

By having the configuration as explained above, the present invention can
This has the effect that maintenance and replacement can be performed without damaging the functions of the electronic device while the electronic device is in operation and without physically affecting the electronic circuit.

[Brief explanation of the drawing]

FIG. 1 is an actual diagram of an online repair method showing an embodiment of the present invention, and FIG. 2 is a timing diagram regarding a power supply confirmation signal. Al, A2. Aゎ・・・Electronic circuit package, B1, B
2. B, ---Power supply module, C1, C2゜Cn...
・Power cable, DI, B2. D., Jl. J2. J...Signal cable, E...Motherboard, F...Electronic device rack, G...Power supply rack, H...
2. Power control module, Kl. ...Switch, LL. L2. L...Lamp.

Claims (1)

[Claims] In an online repair type electronic device that enables maintenance and replacement of the electronic circuit packages that make up the electronic device while the electronic device is energized or in operation, a power supply that independently supplies power to each electronic circuit package. a power supply control module that controls the power supply module; a power supply control module for transmitting power on/off control and a power supply status transmitting means used between the power supply module and the power supply control module; The power supply control module includes a power supply means for transmitting and controlling a power supply confirmation signal used between the electronic circuit package and the power supply module, and a power supply means used between the electronic circuit package and the power supply module. Each power supply module has a switch for turning on and off the power, and a lamp that indicates the power on status of each power supply module, while the electronic circuit package has a switch that monitors the internal voltage and detects when the voltage falls below a specified voltage. An online repair method characterized by having a power-on reset circuit that immediately becomes a low level and becomes a high level after a predetermined delay time when a specified voltage is reached.