CN205982553U

CN205982553U - Detection apparatus for digital circuit board

Info

Publication number: CN205982553U
Application number: CN201621015611.4U
Authority: CN
Inventors: 党晓军; 杨雪芮
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-31
Filing date: 2016-08-31
Publication date: 2017-02-22
Anticipated expiration: 2026-08-31

Abstract

The utility model relates to a detection apparatus for digital circuit board, include: host computer, singlechip, relay group, memory, first probe and second probe, the host computer through first interface with the singlechip is connected, the host computer passes through signal array, signal characteristics value and controlling value that usefulness will be tested to first interface send for the singlechip, the singlechip is judged the control test port that signal characteristics value and controlling value correspond, the singlechip with the relay group is connected, single chip microcomputer control the relay group will the signal array send for first probe, and will the signal transmission that the second probe was gathered gives the singlechip, the memory with the singlechip is connected, memory storage the signal, the singlechip will signal formation signal array erupts simultaneously and gives it is right that the singlechip carries out signal ratio. The utility model discloses digital circuit board detection device simple structure can realize the circuit board test of high accuracy.

Description

The detection means of digital circuit board

Technical field

This utility model is related to a kind of detection means, more particularly, to a kind of detection means of digital circuit board.

Background technology

Automated system and equipment need to use chip, and chip has bus transceiver, latch, interrupt control unit etc. Form independent communication and the control device of oneself.

For the normal operation of maintenance system, need the upgrading into andante level and replacement, the amount being usually directed to and substituting is very Greatly, therefore how to ensure the development accuracy of replacing plate, how test replacement plate is urgent problems.

But existing detection mode is all to utilize manual detection, and each replacing plate will go up equipment plug, and one is The test of the other people of impact, two is if wrong can produce misoperation, affects equipment life.

Utility model content

The purpose of this utility model is the defect for prior art, provides a kind of detection means of digital circuit board, knot Structure is simple, and measuring accuracy is high.

For achieving the above object, this utility model provides a kind of detection means of digital circuit board, including：Host computer, Single-chip microcomputer, relay group, memorizer, the first probe and the second probe；

Described host computer is connected with described single-chip microcomputer by first interface, and described host computer passes through described first interface will The signal array of test, signal characteristic value and controlling value are sent to described single-chip microcomputer, and described single-chip microcomputer judges that described signal is special Control test port corresponding to value indicative and controlling value；

Described single-chip microcomputer is connected with described relay group, and relay group described in described Single-chip Controlling is by described signal battle array Row are sent to described first probe, and the signal of the described second probe collection is sent to described single-chip microcomputer；

Described memorizer is connected with described single-chip microcomputer, signal described in described memory storage, and described single-chip microcomputer will be described Signal forms signal array and is sent to described host computer and carries out signal fusing.

Further, the detection means of described digital circuit board also includes：Bus driver, respectively with described single-chip microcomputer and Relay group is connected, and described single-chip microcomputer controls described relay group by bus driver.

Further, described first interface is USB interface.

Further, described first pop one's head in for OUT probe, described second pop one's head in for IN probe.

Further, described first probe and one group two-by-two of the second probe.

Further, described first probe and second probe can arrange one or more groups of.

The detection means of this utility model digital circuit board utilizes simple structure it is achieved that high-precision circuit board is surveyed Examination.

Brief description

Fig. 1 is a kind of embodiment schematic diagram of the detection means of digital circuit board of this utility model.

Specific embodiment

Below by drawings and Examples, the technical solution of the utility model is described in further detail.

Fig. 1 is a kind of schematic diagram of the detection means of digital circuit board of this utility model, the detection of described digital circuit board Device includes：Host computer 110, single-chip microcomputer 120, relay group 130, memorizer 140, first probe 150 and the second probe 160；

Described host computer 110 is connected with described single-chip microcomputer 120 by first interface 170, and described host computer 110 passes through institute State first interface 170 and the signal array tested, signal characteristic value and controlling value are sent to described single-chip microcomputer 120, described list Piece machine 120 judges the control test port 180 corresponding to described signal characteristic value and controlling value；

Described single-chip microcomputer 120 is connected with described relay group 130, and described single-chip microcomputer 120 controls described relay group 130 Described signal array is sent to described first probe 150, and the signal of the described second probe 160 collection is sent to described list Piece machine 120；

Described memorizer 140 is connected with described single-chip microcomputer 120, and described memorizer 140 stores described signal, described monolithic Described signal is formed signal array and is sent to described host computer 110 and carries out signal fusing by machine 120.

Described host computer 110 can be realized using host computer, and computer has more powerful computing capability, using upper Bit machine can improve the detection efficiency of the detection means of digital circuit board, and facilitates data display data to manage.

Described single-chip microcomputer 120 can be realized by communication link with described relay group 130.

The preferred CF8051F120 series monolithic of described single-chip microcomputer 120, this single-chip microcomputer provides USB to drive, and has abundant I/O interface it is ensured that extension to external equipment.

On the one hand, described bus driver can provide power drive, on the other hand, when the detection means of digital circuit board When running the different periods, there is difference in the semiotic function that pin occurs, described bus driver can play storage simultaneously Separate signal function.Described bus driver can be one or more, respectively with described single-chip microcomputer 120 and relay group 130 are connected.

Further, described first interface 170 is USB interface.

Preferably use the connected mode that USB interface is connected with single-chip microcomputer 120 as host computer 110, USB interface is current meter In calculation machine standard extension interface, and have good compatibility between different USB version.USB has transmission speed soon, uses Convenient, support hot plug, connect flexibly, the advantages of independently-powered.In addition, host computer 110 is connected and can also lead to single-chip microcomputer 120 Cross PCI-E bus and substitute USB, PCI-E employs point-to-point serial connection popular in the industry, and each equipment has the special of oneself Connect it is not necessary to whole bus request bandwidth, and data transmission rate can be brought up to a very high frequency, so survey Examination speed can improve further.

Further, described first probe 150 is OUT probe, and described second probe 160 is IN probe.

Further, described first probe 150 and the second probe 160 one group two-by-two.

Further, described first probe 150 and second probe 160 can arrange one or more groups of.

In order to improve detection efficiency, multigroup first probe 150 can be set and the second probe 160 enters to multiple testing equipments Row test.

It should be noted last that, above example only in order to the technical solution of the utility model to be described and unrestricted, to the greatest extent Pipe has been described in detail to this utility model with reference to preferred embodiment, it will be understood by those within the art that, permissible The technical solution of the utility model is modified or equivalent, without deviating from technical solutions of the utility model spirit and Scope.

Claims

1. a kind of detection means of digital circuit board is it is characterised in that the detection means of described digital circuit board includes：Upper Machine, single-chip microcomputer, relay group, memorizer, the first probe and the second probe；

Described host computer is connected with described single-chip microcomputer by first interface, and described host computer will be tested by described first interface Signal array, signal characteristic value and controlling value are sent to described single-chip microcomputer, and described single-chip microcomputer judges described signal characteristic value With the control test port corresponding to controlling value；

Described single-chip microcomputer is connected with described relay group, and described in described Single-chip Controlling, described signal array is sent out by relay group Give described first probe, and the signal of the described second probe collection is sent to described single-chip microcomputer；

Described memorizer is connected with described single-chip microcomputer, signal described in described memory storage, and described single-chip microcomputer is by described signal Form signal array and be sent to described host computer and carry out signal fusing.

2. the detection means of digital circuit board according to claim 1 is it is characterised in that the detection of described digital circuit board Device also includes：Bus driver, is connected with described single-chip microcomputer and relay group respectively, and described single-chip microcomputer passes through bus driver Control described relay group.

3. the detection means of digital circuit board according to claim 1 is it is characterised in that described first interface connects for USB Mouthful.

4. the detection means of digital circuit board according to claim 1 is it is characterised in that described first pops one's head in as OUT spy Head, described second pops one's head in as IN probe.

5. the detection means of digital circuit board according to claim 1 is it is characterised in that described first probe and second is visited One group two-by-two of head.

6. the detection means of digital circuit board according to claim 5 is it is characterised in that described first probe and second is visited Head can arrange one or more groups of.