CN201654186U

CN201654186U - Large-scale signal detecting equipment

Info

Publication number: CN201654186U
Application number: CN2009202512117U
Authority: CN
Inventors: 王保文; 黄伟; 郝彬; 张宁; 田力
Original assignee: Tianjin Optical Electrical Communication Technology Co Ltd
Current assignee: Tianjin Optical Electrical Communication Technology Co Ltd
Priority date: 2009-12-02
Filing date: 2009-12-02
Publication date: 2010-11-24
Anticipated expiration: 2019-12-02

Abstract

The utility model relates to a large-scale signal detecting equipment, which comprises testing equipment and a main case, wherein the main case comprises a relay matrix part, a single chip microcomputer control part and an indicating lamp part, wherein the input level of the relay matrix part is connected with equipment to be tested, the output level thereof is connected with a testing interface of the testing equipment; the single chip microcomputer control part is connected with the output of the testing equipment and control signals of the relays; and the indicating lamp part is connected with the input levels of the relays. The cascading amount of the relays of the relay matrix part is multiple, and the amount of the relays is multiple. With the switching of the relays, the equipment realize the time-sharing test of the testing signal; and by utilizing the integrated scheme that software and hardware of the relay matrix are controlled by the single chip microcomputer, the equipment realizes the time-sharing detection of the signal, reduces the amount of the testing interfaces required by the detecting equipment, and improves the use ratio of the detecting equipment.

Description

Extensive signal detection apparatus

Technical field

The utility model relates to signal detection apparatus, relates in particular to a kind of extensive signal detection apparatus.

Background technology

Now, along with the maximization of equipment, complicated, the quantity of the signal in equipment comprises is becoming more and more.Yet,, when especially number of signals reaches hundreds of, adopt the method for manual measurement will expend great energy to the detection of these signals.Yet the automatic detection of employing equipment but needs a large amount of detection interfaces, and it is individual that the detection interface of general device can not reach hundreds of, the huge trouble that this also brings to detection.

Summary of the invention

In order to overcome the problem that checkout equipment detects the interface deficiency, the utility model provides a kind of extensive signal detection apparatus.This equipment can reduce the required detection port of detection in a large number, realizes the automatic detection to a large amount of signals.

The problem that the utility model need solve: utilize the less detection port of checkout equipment, realize detection to extensive signal; Have the self-check function, this equipment is realized the detection of self.

The purpose of this utility model is the quantity of test interface required when reducing checkout equipment testing apparatus being tested and has equipment self-inspection and look into function.

To achieve these goals, the technical scheme that the utility model is taked is: a kind of extensive signal detection apparatus, it is characterized in that: comprise testing apparatus and mainframe box, described mainframe box comprises relay matrix part, Single-chip Controlling part and pilot lamp part.The input stage of described relay matrix part is connected with equipment under test, and output stage is connected with the test interface of testing apparatus.Described Single-chip Controlling part is connected with the output of testing apparatus and the control signal of relay.Described pilot lamp part is connected with the input stage of relay.The relay cascade number that described relay matrix partly comprises is some levels, and the relay quantity that comprises is several; By the switching of relay, realize timesharing test to test signal.Described Single-chip Controlling partly comprises scm software, and its function comprises self-check software and working software.According to signal, finish the switching of relay under self-check or the duty from checkout equipment.Indicating section when pilot lamp partly is self-check indicates the relay that breaks down by pilot lamp.

The utility model beneficial effect is: utilize the software and hardware integration scheme of Single-chip Controlling relay matrix, realize the timesharing of signal is detected, reduced the required test interface quantity of checkout equipment, improved the utilization factor of checkout equipment.Have the self-check pilot lamp, can detect the relay that breaks down rapidly, for the maintenance of this equipment provides guarantee.

Description of drawings

Fig. 1 is the utility model circuit theory diagrams, and as Figure of abstract;

Fig. 2 is the utility model software workflow figure.

Embodiment

Below in conjunction with accompanying drawing 1,2, the utility model is described further.

The basic circuit principle of extensive signal detection apparatus is as follows: native system uses the two relays of putting of hilted broadsword to carry out the port expansion, when checkout equipment has only one group of port, when using the one-level relay, available port expands to 2 groups, when using the cascade of secondary relay, available port expands to 4 groups, and when using three grades of relay cascades, available port expands to 8 groups.By that analogy, visible every increase one-level relay, available port group number doubles.

Except needs increased relay, the cascade of every increase one-level only needed control single chip computer to increase a control line at hardware aspect in this expansion.In addition, this system expandability is stronger, and it has two kinds of extended modes: one doubles expansion, promptly under the certain situation of checkout equipment port number, increases the progression of relay; Two linear expansions promptly under the constant situation of guard relay progression, increase the quantity of cascade unit, also will take the port of checkout equipment simultaneously more.The quantity of expansion becomes linear dependence with the group number that takies the checkout equipment port.

Shown in 2 figure, this system test equipment sends instruction by communication port to single-chip microcomputer, and C8051F020 is adopted in the single-chip microcomputer control; Single-chip microcomputer sends control signal corresponding according to instruction, and pilot relay switches, and single-chip microcomputer is waited for after this end of test (EOT) then, carries out subcommand down.Realized the timesharing of signal is detected, reduced testing apparatus and surveyed the port usage quantity.

In addition, for rapid investigation problem when native system breaks down, designed self-checking function.Native system major failure point is a relay.The criterion that whether normal relay is is: can relay adhesive.When self-check,, connect pilot lamp in input stage at output terminal (output end) connection+5V voltage.Utilize all relay adhesives of Single-chip Controlling.If relay is normal ,+5V will be connected to pilot lamp and pilot lamp will be lighted by relay.On the contrary, if pilot lamp does not work, prove that then this relay breaks down.

Claims

1. extensive signal detection apparatus, it is characterized in that: comprise testing apparatus and mainframe box, described mainframe box comprises relay matrix part, Single-chip Controlling part and pilot lamp part, the input stage of described relay matrix part is connected with equipment under test, output stage is connected with the test interface of testing apparatus, described Single-chip Controlling part is connected with the output of testing apparatus and the control signal of relay, and described pilot lamp part is connected with the input stage of relay.