CN201066856Y - A network cable tester - Google Patents
A network cable tester Download PDFInfo
- Publication number
- CN201066856Y CN201066856Y CNU2007201217548U CN200720121754U CN201066856Y CN 201066856 Y CN201066856 Y CN 201066856Y CN U2007201217548 U CNU2007201217548 U CN U2007201217548U CN 200720121754 U CN200720121754 U CN 200720121754U CN 201066856 Y CN201066856 Y CN 201066856Y
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- CN
- China
- Prior art keywords
- netting twine
- microprocessor unit
- circuit
- network cable
- control circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a network line tester which comprises a micro controlling unit, a liquid crystal driving and displaying unit, an on-off control circuit, a first network line jack and a second network line jack. The liquid crystal driving and displaying unit is connected with the micro controlling unit. The first network line jack is connected with a level detection port of the micro controlling unit, and the second network line jack is connected with an output end of the on-off control circuit. A control end and an input end of the on-off control circuit are all connected with the micro controlling unit. The utility model uses the micro controlling unit to control the on-off status of circuits of core lines of the network line in different orders and implements the high-low level detection on the circuits to judge connect, disconnect and short-circuit conditions of the core lines of the network line. And detection results are directly displayed by LCD. The utility model has the advantages of good intelligent, high precision, direct display, carrying convenience, etc.
Description
[technical field]
The utility model relates to a kind of network cable tester.
[background technology]
Universal day by day along with the Internet, network and information become an indispensable part in people's work, the life gradually.For give networking, maintaining network brings convenience and efficient is provided, we press for a good network cable tester.And present network cable tester majority is to adopt some special chips and complicated circuit, and by lighting of many light-emitting diodes extinguished, luminous color, sequence of light are judged network or netting twine connection status.But these mode principle complexity, cost is higher, display speed is slow, testing result is not easy to observe.
[summary of the invention]
Main purpose of the present utility model is: provide a kind of intelligent good, accuracy is high, the network cable tester of intuitive display.
For achieving the above object, the utility model proposes a kind of network cable tester, comprise microprocessor unit, liquid crystal drive and display unit, on-off control circuit, the first netting twine jack, the second netting twine jack; Described liquid crystal drive and display unit are connected with described microprocessor unit; The described first netting twine jack is connected with the level detection port of described microprocessor unit, and the described second netting twine jack is connected with the output of described on-off control circuit; The control end of described on-off control circuit, input all are connected with described microprocessor unit.
Above-mentioned network cable tester also comprises power supply circuit, and described power supply circuit is connected with described microprocessor unit, liquid crystal drive and display unit, on-off control circuit respectively.Also comprise the type of detection diverter switch that is used to switch the netting twine type, be electrically connected with described microprocessor unit.
Above-mentioned network cable tester, described on-off control circuit comprises eight way switch; The control end of every way switch is connected with described microprocessor unit Enable Pin respectively, and the input of every way switch and output draw respectively and be connected to the described power supply circuit and the second netting twine jack.Described switch is a triode, and its base stage is connected with described microprocessor unit Enable Pin, and collector electrode draws and is connected to power supply circuit, and emitter is connected with the described second netting twine jack.
Above-mentioned network cable tester, described liquid crystal drive and display unit comprise LCDs, display driver circuit, the two electrical connection; Described display driver circuit is connected by the FPC wiring board with described microprocessor unit.
For achieving the above object, the utility model proposes a kind of network cable tester, comprise housing, main circuit, the first netting twine jack, the second netting twine jack; Described main circuit is arranged in the housing, and the described first netting twine jack, the second netting twine jack are arranged on the housing; It is characterized in that: described main circuit comprises microprocessor unit, liquid crystal drive and display unit, on-off control circuit, power supply circuit, and described liquid crystal drive and display unit, power supply circuit are connected with described microprocessor unit respectively; The described first netting twine jack is connected with the level detection port of described microprocessor unit, and the described second netting twine jack is connected with the output of described on-off control circuit; The control end of described on-off control circuit, input all are connected with described microprocessor unit; Described power supply circuit is connected with described microprocessor unit, liquid crystal drive and display unit, on-off control circuit respectively.
Above-mentioned network cable tester also comprises the type of detection diverter switch that is used to switch the netting twine type, is connected with described microprocessor unit, is arranged on the described housing.
Above-mentioned network cable tester, described on-off control circuit comprises eight way switch; The control end of every way switch is connected with described microprocessor unit Enable Pin respectively, and the input of every way switch and output draw respectively and be connected to the described power supply circuit and the second netting twine jack.Described switch is a triode, and its base stage is connected with described microprocessor unit Enable Pin, and collector electrode draws and is connected to power supply circuit, and emitter is connected with the described second netting twine jack.
Owing to adopted above scheme, can utilize the break-make of microprocessor unit with each heart yearn place circuit of different sequential control netting twines, and it is carried out high-low level detect, thereby judge connection, disconnection, the short-circuit state of each heart yearn of netting twine, and testing result is shown intuitively by LCD, have intelligent good, accuracy is high, intuitive display, advantage such as easy to carry.
This netting twine tester can also increase the testing result that buzzer or loud speaker, light-emitting diode etc. carry out the indication netting twine of acousto-optic combination according to the practical application needs.
[description of drawings]
Fig. 1 is the utility model embodiment product appearance plane graph;
Fig. 2 is the utility model embodiment operation principle schematic block diagram;
Fig. 3 is the utility model embodiment power suppling part parallel circuit schematic diagram;
Fig. 4 is the utility model embodiment microprocessor portion circuit theory diagrams;
Fig. 5 is the utility model embodiment break-make control section circuit theory diagrams;
Fig. 6 is that the utility model embodiment connects FPC partial circuit schematic diagram;
Fig. 7 is the workflow diagram of the utility model embodiment.
[embodiment]
Also in conjunction with the accompanying drawings the utility model is described in further detail below by specific embodiment.
Please refer to shown in Figure 1, this routine network cable tester is box-like, comprise housing 1, LCDs 2, main circuit, power supply circuit etc., LCDs 2 is installed on housing 1 centre position, also is provided with mains switch, type of switch, test button, the first netting twine interface 11, the second netting twine interface 12, power supply indicator 3 on the housing.Main circuit board, power supply circuit are installed within the housing 1.
Please refer to shown in Figure 2ly, the main circuit of the network cable tester that this is routine comprises microprocessor unit, liquid crystal drive and display unit, on-off control circuit, type of detection diverter switch, power supply circuit etc.Liquid crystal drive and display unit comprise the LCD display driver circuit, connect the FPC wiring board and the LCDs of usefulness.The type of detection diverter switch is that direct-through line and cross spider are detected the switch that switches.Power supply circuit mainly is to give microprocessor, liquid crystal drive and display unit, on-off control circuit etc. by the 5V powered battery, and is carried out the indication of power connection and disconnection as power supply indicator 3 by light-emitting diode.
Its operation principle is as follows:
As shown in Figure 3, when turning on the power switch POWER_SWITCH, battery provides 5V voltage, and indicator light LED lights, and is powered to the each several part circuit by VCC.
As shown in Figure 4, microprocessor unit adopts single-chip microcomputer W78LE516, and outside oscillating circuit provides its work required clock signal; The TEST_KEY that is connected with the P3.2 mouth is in normally open for the test button, and P3.2 becomes low level when it is pressed, and microprocessor promptly calls trace routine and detects the connection status of netting twine; Because P3.2 becomes high level under the effect of the pull-up resistor of single-chip microcomputer inside, microprocessor no longer calls trace routine when it is decontroled; The TEST_TYPE that is connected with the P3.6 mouth is a type of switch, and microprocessor detection P3.6 is low level and calls " direct-through line trace routine " when it connects GND, and microprocessor detection P3.6 is high level and calls " cross spider trace routine " when it connects VCC; The P0 mouth of W78LE516 is as the detection port of netting twine, judge the connection status of netting twine by the high-low level that detects each heart yearn RJ1-RJ8 of netting twine, the P1 mouth is as data wire, be used for instruction and data passes between single-chip microcomputer and the LCD drive IC UC1602I, the P2 mouth connects the base stage of switch triode Q1-Q8, by the break-make of microprocessor control netting twine place circuit; The RS that the P3 mouth connects, CS, RESET, WR, RD are control and the read-write of display driver IC.
As shown in Figure 5, behind the software initialization, when pressing test button TEST_KEY, microprocessor is changed to P2.0-P2.7 (EN1-EN8) low level and RJ1-RJ8 (P0.0-P0.7) is changed to low level, this moment, switch triode Q1-Q8 was in disconnection, each heart yearn place circuit no current of netting twine; After pressing the test button, microprocessor is changed to high level simultaneously with P2.0-P2.7 (EN1-EN8), the Q1-Q8 conducting, if the equal conducting of each heart yearn of netting twine, if the impedance of switch triode is ignored, then R1-R8 is an impedance component unique in the circuit, the voltage V at each resistance R 1-R8 two ends
The resistance two ends=VCC-V
Switch triode tube voltage drop, switch triode tube voltage drop is less can be considered to ignore, then V
The resistance two endsBe about VCC, both end voltage all is about the VCC size, thereby microprocessor to detect RJ1-RJ8 (P0.0-P0.7) be high level, preliminary judgement netting twine is for being communicated with, if heart yearn RJ1 disconnects, then the R1 no current passes through, thereby microprocessor detects RJ1 (P0.0) for low level, and the heart yearn RJ1 that judges netting twine is for disconnecting.After the connective preliminary judgement of netting twine was finished, microprocessor was changed to P2.0-P2.7 (EN1-EN8) low level again and RJ1-RJ8 (P0.0-P0.7) is changed to low level.
If netting twine has heart yearn to disconnect, then no longer detect whether short circuit of netting twine, be what be communicated with if tentatively judge netting twine, then need to continue to detect between its each heart yearn whether have short circuit.
The line preface at direct-through line two ends is identical to be standard 568A or standard 568B, and the line preface difference at cross spider two ends, and an end is standard 568A and the other end is standard 568B.The line 1 of 568A is 568B after exchanging with line 6 with line 3, line 2.When direct-through line and cross spider detected, microprocessor was judged the netting twine type and is called the relevant detection program by the high/low level that type of switch connect.
If tentatively judging netting twine is what be communicated with, then further check the short-circuit conditions of each heart yearn.As shown in Figure 5, when detecting the short-circuit conditions of heart yearn 1, microprocessor needs earlier RJ2-RJ8 (P0.1-P0.7) to be put low level and EN2-EN7 is changed to low level, EN1 puts high level and makes switch triode Q1 conducting then, heart yearn 1 conducting, if heart yearn 1 and heart yearn 2 not short circuits, then owing to Q2 disconnects the low level that RJ2 still is provided with for microprocessor, if heart yearn 1 and heart yearn 2 short circuit between J1 and J2, though Q2 disconnects, but heart yearn 2 is because of becoming high level with heart yearn 1 short circuit, this moment circuit be R1 with after R2 is in parallel again and switch triode Q1 go here and there between VCC and GND, it is not-time to ignore switch triode Q1, and the level of RJ2 approximates the VCC size, i.e. the low level that is provided with by microprocessor from the RJ2 level, because of short circuit has become high level, microprocessor detects RJ2 at this moment for high level, then shown heart yearn 2 with heart yearn 1 short circuit, in like manner can judge heart yearn 3-8 whether with heart yearn 1 short circuit.The order that microprocessor is put high level for direct-through line and cross spider with the EN end is different:
Direct-through line is put high level: EN1, EN2, EN3, EN4, EN5, EN6, EN7, EN8;
Cross spider is put high level: EN3, EN6, EN1, EN4, EN5, EN2, EN7, EN8.
As shown in Figure 6, this is a single-chip microcomputer and the FPC that is connected of display driver IC, and single-chip microcomputer and display driver IC instruct and data passes by it.
This routine LCDs is selected white and black displays pattern, semi-transparency type, 96*64 lattice type LCD (or character formula LCD) for use, adopts semi-transparency type LCD to need not bias light and promptly can watch the information that detects back output.
At last, microprocessor will gather and respectively go on foot detection information, and the final detected state of netting twine is shown output by LCDs.
Workflows such as above-mentioned relevant microprocessor detection, judgement as shown in Figure 7.Method of operation is as follows:
(1) turns on the power switch.
(2) the netting twine two ends are inserted the first netting twine jack and the second netting twine jack of tester respectively.
(3) according to netting twine type to be detected (direct-through line or cross spider) type of switch is switched to the relevant position.
(4) press Test Switchboard, Automatic Program detects and shows the type of institute's survey grid line and connection, open circuit, short-circuit state in LCD.
(5) repeating step (2) detects other netting twine to (4).
This netting twine tester can accurately be judged connection, disconnection and the short-circuit condition of each root heart yearn of netting twine, and shows by LCD, as seen its intelligent good, accuracy is high.This netting twine tester can also increase the testing result that buzzer or loud speaker, light-emitting diode etc. carry out the indication netting twine of acousto-optic combination according to the practical application needs.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection range of the present utility model.
Claims (10)
1. a network cable tester is characterized in that: comprise microprocessor unit, liquid crystal drive and display unit, on-off control circuit, the first netting twine jack, the second netting twine jack; Described liquid crystal drive and display unit are connected with described microprocessor unit; The described first netting twine jack is connected with the level detection port of described microprocessor unit, and the described second netting twine jack is connected with the output of described on-off control circuit; The control end of described on-off control circuit, input all are connected with described microprocessor unit.
2. network cable tester as claimed in claim 1 is characterized in that: also comprise power supply circuit, described power supply circuit is connected with described microprocessor unit, liquid crystal drive and display unit, on-off control circuit respectively.
3. network cable tester as claimed in claim 2 is characterized in that: also comprise the type of detection diverter switch that is used to switch the netting twine type, be electrically connected with described microprocessor unit.
4. as claim 2 or 3 described network cable tester, it is characterized in that: described on-off control circuit comprises eight way switch; The control end of every way switch is connected with described microprocessor unit Enable Pin respectively, and the input of every way switch and output draw respectively and be connected to the described power supply circuit and the second netting twine jack.
5. network cable tester as claimed in claim 4 is characterized in that: described switch is a triode, and its base stage is connected with described microprocessor unit Enable Pin, and collector electrode draws and is connected to power supply circuit, and emitter is connected with the described second netting twine jack.
6. network cable tester as claimed in claim 4 is characterized in that: described liquid crystal drive and display unit comprise LCDs, display driver circuit, the two electrical connection; Described display driver circuit is connected by the FPC wiring board with described microprocessor unit.
7. a network cable tester comprises housing, main circuit, the first netting twine jack, the second netting twine jack; Described main circuit is arranged in the housing, and the described first netting twine jack, the second netting twine jack are arranged on the housing; It is characterized in that: described main circuit comprises microprocessor unit, liquid crystal drive and display unit, on-off control circuit, power supply circuit, and described liquid crystal drive and display unit, power supply circuit are connected with described microprocessor unit respectively; The described first netting twine jack is connected with the level detection port of described microprocessor unit, and the described second netting twine jack is connected with the output of described on-off control circuit; The control end of described on-off control circuit, input all are connected with described microprocessor unit; Described power supply circuit is connected with described microprocessor unit, liquid crystal drive and display unit, on-off control circuit respectively.
8. network cable tester as claimed in claim 7 is characterized in that: also comprise the type of detection diverter switch that is used to switch the netting twine type, be connected with described microprocessor unit, be arranged on the described housing.
9. as claim 7 or 8 described network cable tester, it is characterized in that: described on-off control circuit comprises eight way switch; The control end of every way switch is connected with described microprocessor unit Enable Pin respectively, and the input of every way switch and output draw respectively and be connected to the described power supply circuit and the second netting twine jack.
10. network cable tester as claimed in claim 9 is characterized in that: described switch is a triode, and its base stage is connected with described microprocessor unit Enable Pin, and collector electrode draws and is connected to power supply circuit, and emitter is connected with the described second netting twine jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201217548U CN201066856Y (en) | 2007-07-24 | 2007-07-24 | A network cable tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201217548U CN201066856Y (en) | 2007-07-24 | 2007-07-24 | A network cable tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201066856Y true CN201066856Y (en) | 2008-05-28 |
Family
ID=39484041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201217548U Expired - Lifetime CN201066856Y (en) | 2007-07-24 | 2007-07-24 | A network cable tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201066856Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101378365B (en) * | 2008-10-07 | 2012-01-25 | 北京星网锐捷网络技术有限公司 | Method for stacking network appliances and stacking port |
| CN103973337A (en) * | 2014-05-12 | 2014-08-06 | 浪潮电子信息产业股份有限公司 | Network cable stability testing method |
| CN111404728A (en) * | 2020-03-02 | 2020-07-10 | 广东优力普物联科技有限公司 | Network equipment fault monitoring method and network system |
-
2007
- 2007-07-24 CN CNU2007201217548U patent/CN201066856Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101378365B (en) * | 2008-10-07 | 2012-01-25 | 北京星网锐捷网络技术有限公司 | Method for stacking network appliances and stacking port |
| CN103973337A (en) * | 2014-05-12 | 2014-08-06 | 浪潮电子信息产业股份有限公司 | Network cable stability testing method |
| CN111404728A (en) * | 2020-03-02 | 2020-07-10 | 广东优力普物联科技有限公司 | Network equipment fault monitoring method and network system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080528 |