CN104155597A

CN104155597A - Fault detector for computer main board

Info

Publication number: CN104155597A
Application number: CN201410327980.6A
Authority: CN
Inventors: 董志; 郭彩芬
Original assignee: Suzhou Vocational University
Current assignee: Suzhou Vocational University
Priority date: 2014-07-11
Filing date: 2014-07-11
Publication date: 2014-11-19

Abstract

The invention discloses a fault detector for a computer main board. The fault detector comprises a single chip microcomputer module, a voice alarm module, an auxiliary power supply and a comparator module, wherein the auxiliary power supply is used for supplying power for all the modules; the comparator module is connected onto a main board power interface, and is used for comparing the voltage of the main board power interface with the voltage input by the auxiliary power supply to correspondingly output the high electrical level and the low electrical level; the single chip microcomputer module is connected between the voice alarm module and the comparator module, and is used for identifying the high electrical level and the low electrical level output by the comparator module, screening the fault point, and transferring a control signal to the voice alarm module; the voice alarm module is used for identifying the control signal sent by the single chip microcomputer module, and playing the corresponding fault language. According to the structure, the fault detector can find out the fault point of the computer main board, and is more accurate and intuitional compared with the conventional diagnostic method.

Description

A kind of computer motherboard fault locator

Technical field

The present invention relates to COMPUTER DETECTION instrument field, particularly relate to a kind of computer motherboard fault locator.

Background technology

Now, personal computer is quite universal, and in use, hardware damage is quite common problem.Conventionally, whether computer hardware damages the modes that adopt replacing assembly more, but damage for diagnosis, the especially mainboard of concrete fault, is perplexing user always.

Summary of the invention

The technical matters that the present invention mainly solves is to provide a kind of computer motherboard fault locator, and the mode that can take fictitious load to combine with audio alert can effectively be judged the quality of mainboard, checks out corresponding trouble spot.

For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of computer motherboard fault locator is provided, comprises: one-chip computer module, audio alert module, accessory power supply and comparator module; Described accessory power supply is given each module for power supply; Described comparator module is connected on motherboard power supply interface; Described comparator module compares the voltage of described motherboard power supply interface and accessory power supply input, exports corresponding low and high level; Described one-chip computer module is connected between audio alert module and comparator module, and described one-chip computer module is identified the low and high level of described comparator module output, screens out trouble spot, and control signal is passed to audio alert module; The control signal identification that described audio alert module is sent described one-chip computer module, and play corresponding fault language; Described motherboard power supply interface is connected with the end of oppisite phase of described comparator module; Described accessory power supply is connected with the in-phase end of described comparator module, between described accessory power supply and comparator module, is connected with divider resistance.

Preferably, described audio alert module stores fault alarm sound, and described audio alert module, to the signal screening from one-chip computer module, is sent corresponding line fault voice.

The invention has the beneficial effects as follows: the present invention can judge computer motherboard trouble spot, more accurate in traditional diagnosis method, directly perceived.

Accompanying drawing explanation

Fig. 1 is the structural representation of the motherboard power supply interface of a kind of computer motherboard fault locator of the present invention;

Fig. 2 be shown in a kind of comparator module conspectus of computer motherboard fault locator;

Fig. 3 be shown in a kind of one-chip computer module and audio alert module conspectus of computer motherboard fault locator;

In accompanying drawing, the mark of each parts is as follows: 1, motherboard power supply interface; 2, comparator module; 3, one-chip computer module; 4, audio alert module.

Embodiment

Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.

Refer to Fig. 1 to Fig. 3, the embodiment of the present invention comprises:

A computer motherboard fault locator, comprising: one-chip computer module 3, audio alert module 4, accessory power supply and comparator module 2; Described accessory power supply is given each module for power supply; Described comparator module 2 is connected on motherboard power supply interface 1; The voltage of 2 pairs of described motherboard power supply interfaces 1 of described comparator module and accessory power supply input compares, and exports corresponding low and high level; Described one-chip computer module 3 is connected between audio alert module 4 and comparator module 2, and the low and high level of 3 pairs of described comparator module 2 outputs of described one-chip computer module is identified, and screens out trouble spot, and control signal is passed to audio alert module 4; Described audio alert module 4 stores fault alarm sound, and 4 pairs of signal screenings from one-chip computer module 3 of described audio alert module, send corresponding line fault voice; Described motherboard power supply interface 1 is connected with the end of oppisite phase of described comparator module 2; Described accessory power supply is connected with the in-phase end of described comparator module 2, between described accessory power supply and comparator module 2, is connected with divider resistance.

During detection failure, main board power supply socket is received on 20 core mouths of detector, by the circuit access detector of power supply, connected 12V accessory power supply, now, detector is started working.Five kinds of voltage (+3.3V that motherboard power supply interface need to be inputted, + 5V,-5V, + 12V,-12V) access respectively the detector interface corresponding with it, the lead-in wire p01-p08 of interface and the corresponding connection of the lead-in wire p01-p08 of LM339 voltage comparator, the pin p11-p18 of voltage comparator is connected to the pin p11-p18 of 89c51 type one-chip computer module; Described voltage comparator compares the magnitude of voltage of input, exports corresponding low and high level, and when level is input to after one-chip computer module, single-chip microcomputer, by identification level signal, screens out final trouble spot, and control signal is passed to audio alert module; Pin P20, P21 that the pin K1 of the PM66S speech chip in audio alert module, K2 are connected to single-chip microcomputer, pin int0 and the int1 of int0 and int1 access single-chip microcomputer; Audio alert module receives after control signal, identifies, and plays corresponding failure voice, thereby learns faulty line.The mode that the present invention can take fictitious load to combine with audio alert, can intuitively, effectively judge the quality of mainboard, checks out corresponding trouble spot.

The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes instructions of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.

Claims

1. a computer motherboard fault locator, is characterized in that, comprising: one-chip computer module, audio alert module, accessory power supply and comparator module; Described accessory power supply is given each module for power supply; Described comparator module is connected on motherboard power supply interface; Described comparator module compares the voltage of described motherboard power supply interface and accessory power supply input, exports corresponding low and high level; Described one-chip computer module is connected between audio alert module and comparator module, and described one-chip computer module is identified the low and high level of described comparator module output, screens out trouble spot, and control signal is passed to audio alert module; The control signal identification that described audio alert module is sent described one-chip computer module, and play corresponding fault language; Described motherboard power supply interface is connected with the end of oppisite phase of described comparator module; Described accessory power supply is connected with the in-phase end of described comparator module, between described accessory power supply and comparator module, is connected with divider resistance.

2. a kind of computer motherboard fault locator according to claim 1, is characterized in that: described audio alert module stores fault alarm sound, and described audio alert module, to the signal screening from one-chip computer module, is sent corresponding line fault voice.