CN203490317U

CN203490317U - Serial port line detection apparatus

Info

Publication number: CN203490317U
Application number: CN201320594510.7U
Authority: CN
Inventors: 唐豪; 王香兵; 周桃英
Original assignee: WUXI JUNDA TESTING TECHNOLOGY SERVICES Co Ltd
Current assignee: WUXI JUNDA TESTING TECHNOLOGY SERVICES Co Ltd
Priority date: 2013-09-25
Filing date: 2013-09-25
Publication date: 2014-03-19
Anticipated expiration: 2023-09-25

Abstract

The utility model discloses a serial port line detection apparatus and belongs to the field of serial port line detection. The apparatus comprises a first one-chip microcomputer module, a second one-chip microcomputer module, a nine-pin RS232 serial port female joint, a nine-pin RS232 serial port male joint, a button, a first indicating lamp and a second indicating lamp. Nine pins of the nine-pin RS232 serial port female joint are connected with nine signal output terminals of the first one-chip microcomputer module respectively. Nine pins of the nine-pin RS232 serial port male joint are connected with nine signal input terminal of the second one-chip microcomputer module respectively. The button is connected with an external interrupt port of the first one-chip microcomputer module and an external interrupt port of the second one-chip microcomputer module at the same time. The first and second indicating lamps are both connected with output terminals of the second one-chip microcomputer module. The serial port line detection apparatus achieves a function of quickly detecting a serial port line and effectively improves the detection efficiency.

Description

A kind of Serial Port Line pick-up unit

Technical field

The utility model relates to a kind of Serial Port Line pick-up unit, belongs to Serial Port Line detection field.

Background technology

Serial communication is a kind of communication modes conventional between computing machine and peripheral hardware.In actual applications, serial port communication line adopts the direct-connected line of 9 core conventionally, and it comprises a serial ports male, a serial ports female and 9 core cables that these two serial ports stitch are connected one to one.When Serial Port Line is detected, need to 9 of two serial ports stitch, carry out one by one continuity test by multimeter, could confirm that whether Serial Port Line is qualified, to waste time and energy, detection efficiency is lower.

Utility model content

The utility model, for the problem in background technology, proposes a kind of Serial Port Line pick-up unit, to improve detection efficiency.

The utility model, for overcoming the above problems, adopts following technical scheme:

A Serial Port Line pick-up unit, comprises the first one-chip computer module, second singlechip module, nine kinds of needles RS232 serial ports female, nine kinds of needles RS232 serial ports male, button, the first pilot lamp and the second pilot lamp; 9 stitch of described nine kinds of needles RS232 serial ports female are connected with 9 signal output parts of the first one-chip computer module respectively; 9 stitch of described nine kinds of needles RS232 serial ports male are connected with 9 signal input parts of second singlechip module respectively; Described button is connected with the external interrupt mouth of the first one-chip computer module and the external interrupt mouth of second singlechip module simultaneously; Described the first pilot lamp is all connected with the output terminal of second singlechip module with the second pilot lamp.

Preferably, described the first pilot lamp adopts green LED pilot lamp; Described the second pilot lamp adopts red LED pilot lamp.

Technique effect:

1, the utility model has been realized the fast detecting function of Serial Port Line, has reduced testing staff's labour intensity, has improved detection efficiency.

2, the utility model is simple in structure, with low cost, and practical function is convenient to promote.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Label title in Fig. 1: 1, the first one-chip computer module; 2, second singlechip module; 3, nine kinds of needles RS232 serial ports female; 4, nine kinds of needles RS232 serial ports male; 5, button; 6, the first pilot lamp; 7, the second pilot lamp.

Embodiment

Below in conjunction with accompanying drawing, the technical solution of the utility model is done in further detail and is introduced:

Structure of the present utility model as shown in Figure 1, comprises the first one-chip computer module 1, second singlechip module 2, nine kinds of needles RS232 serial ports female 3, nine kinds of needles RS232 serial ports male 4, button 5, the first pilot lamp 6 and the second pilot lamp 7; 9 stitch of described nine kinds of needles RS232 serial ports female 3 are connected with 9 signal output parts of the first one-chip computer module 1 respectively; 9 stitch of described nine kinds of needles RS232 serial ports male 4 are connected with 9 signal input parts of second singlechip module 2 respectively; Described button 5 is connected with the external interrupt mouth of the first one-chip computer module 1 and the external interrupt mouth of second singlechip module 2 simultaneously; Described the first pilot lamp 6 is all connected with the output terminal of second singlechip module 2 with the second pilot lamp 7.

Described the first pilot lamp 6 adopts green LED pilot lamp, for qualified cable is indicated; Described the second pilot lamp 7 adopts red LED pilot lamp, for underproof cable is indicated; Described the first one-chip computer module 1 and second singlechip module 2 all adopt the P89V51RD2 series monolithic of NXP company; Described button 5 adopts common self-replaced type button.

During check, first the two ends of Serial Port Line to be measured are connected with nine kinds of needles RS232 serial ports male 4 with the nine kinds of needles RS232 serial ports female 3 of this device respectively, then press the button 5, now, the first one-chip computer module 1 and second singlechip module 2 can be received by button 5 simultaneously and control the signal sending, and enter separately the interrupt service routine of self, the first one-chip computer module 1 outwards sends 9 pulse signals successively by 9 signal output parts, 2 pulse signals that the first one-chip computer module 1 sent by 9 signal input parts of second singlechip module detect: if second singlechip module 2 can detect 9 pulse signals that the first one-chip computer module 1 is sent in the correct order, second singlechip module 2 just can be green by the first pilot lamp 6() light to represent " Serial Port Line is qualified ", otherwise, second singlechip module 2 can be red by the second pilot lamp 7() light to represent " Serial Port Line is defective ".

Claims

1. a Serial Port Line pick-up unit, is characterized in that: comprise the first one-chip computer module (1), second singlechip module (2), nine kinds of needles RS232 serial ports female (3), nine kinds of needles RS232 serial ports male (4), button (5), the first pilot lamp (6) and the second pilot lamp (7); 9 stitch of described nine kinds of needles RS232 serial ports female (3) are connected with 9 signal output parts of the first one-chip computer module (1) respectively; 9 stitch of described nine kinds of needles RS232 serial ports male (4) are connected with 9 signal input parts of second singlechip module (2) respectively; Described button (5) is connected with the external interrupt mouth of second singlechip module (2) with the external interrupt mouth of the first one-chip computer module (1) simultaneously; Described the first pilot lamp (6) is all connected with the output terminal of second singlechip module (2) with the second pilot lamp (7).

2. a kind of Serial Port Line pick-up unit according to claim 1, is characterized in that: described the first pilot lamp (6) adopts green LED pilot lamp; Described the second pilot lamp (7) adopts red LED pilot lamp.