CN203786242U - Portable multifunctional interface cable test device - Google Patents
Portable multifunctional interface cable test device Download PDFInfo
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- CN203786242U CN203786242U CN201420181316.0U CN201420181316U CN203786242U CN 203786242 U CN203786242 U CN 203786242U CN 201420181316 U CN201420181316 U CN 201420181316U CN 203786242 U CN203786242 U CN 203786242U
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Abstract
The utility model discloses a portable multifunctional interface cable test device. According to the portable multifunctional interface cable test device, a dip switch is used to switch tested cables, so the device can be used to test various cables, such as a network cable, a telephone wire, a BNC cable, a USB signal line, etc. Then, a test signal is sent by a multi-channel switcher, the test signal is transmitted back to the I/O of a single chip microcomputer via various tests, when the tested cable is good or onto which two ports are connected correspondingly, a signal 0 will be read at the port of the corresponding cable connected onto the I/O port of the single chip microcomputer, or else a signal 1 will be read, so the single chip microcomputer can perform analysis to obtain a return signal, so that various wire connection failures, such as the open circuit failure, the short-circuit open circuit, the crossing failure, the misconnection failure, etc., of various interface cables can be tested. Finally, the single chip microcomputer is used to display the test result through a display module. According to the utility model, not only the condition of an interface transmission line can be fast detected to conveniently provide line failure information for testers; and but also the hardware circuit structure and the cost of the interface cable test device can be greatly simplified, so advantages of intuition, accuracy, reliability and good practical value can be realized.
Description
Technical field
The utility model relates to a kind of proving installation, is specifically related to a kind of portable multi-function interface line proving installation.
Background technology
Spread all over the terrestrial time generation in each corner in internet, many electronics high-end products have changed people's traditional pattern of life.Interface line test is the one test of test system components interface.Interface testing is mainly for detection of the interaction point between external system and system and between inner subsystems.The emphasis of test is the exchange that will check data, transmits and control and management process, and mutual logic dependence between system etc.Interface line measuring technology just becomes part indispensable in electronic industry since the birth of electronic product rises.But in the process of laying at interface line, how to improve cloth line mass, how fast failure judgement orientation has become the most important thing for networking, maintenance.Pay attention to so the importance of interface line test is more and more subject to people, people are also more and more harsher for the selection of tester, require also more and more higher.Whether the method that the test of legacy interface line adopts is test the break-make of each line or then detect and have signal to receive at the other end at one end of interface line making alive with voltage table, because these two kinds of methods all relatively bother.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of portable multi-function interface line proving installation, and the quality that it can fast detecting outgoing interface transmission line is the most convenient and intuitively for tester provides line fault information.
For addressing the above problem, a kind of portable multi-function interface line proving installation that the utility model is designed, is mainly made up of test signal load module, interface line handover module, detection signal distribution module, single-chip microcomputer and display module.Wherein test signal load module comprises network cable socket J1, J5, usb signal line socket J2, J6, BNC cable socket J3, J7, and telephone line socket J4, J8.Interface line handover module comprises 8 toggle switch S5, S8, and 4 toggle switch S6, S7, S9, S10.Detection signal distribution module comprises multi-channel switcher.8 pins of network cable socket J5 are connected with the P1.0-P1.7 pin of single-chip microcomputer through 8 toggle switch S5,4 pins of usb signal line socket J8 are connected with the P1.0-P1.3 pin of single-chip microcomputer through 4 toggle switch S7,2 pins of BNC cable socket J6 and 2 pins of telephone line socket J7 are connected to one end of 4 toggle switch S6 simultaneously, and the other end of 4 toggle switch S6 is connected with the P1.4-P1.7 pin of single-chip microcomputer.8 pins of network cable socket J1 are connected with the X0-X7 pin of multi-channel switcher through 8 toggle switch S8,4 pins of usb signal line socket J2 are connected with the X4-X7 pin of multi-channel switcher through 4 toggle switch S9,2 pins of BNC cable socket J3 and 2 pins of telephone line socket J4 are connected to one end of 4 toggle switch S10 simultaneously, and the other end of 4 toggle switch S10 is connected with the X0-X3 pin of multi-channel switcher.3 address pin A, B, the C of multi-channel switcher are connected with P3.0, P3.1, the P3.2 pin of single-chip microcomputer.The P0.0-P0.7 pin of single-chip microcomputer is connected with the DB0-DB7 pin of display module.
In order can further to analyze the data of portable set, the output terminal of described single-chip microcomputer can also be connected with host computer.
Described 8 toggle switchs and 4 toggle switchs are flat dialling and direct insertion toggle switch.
Compared with prior art, first the utility model by toggle switch switch test line, can test the multiple lines such as netting twine, telephone wire, BNC cable, usb signal line; Then sent test massage by multi-channel switcher, this test signal is passed back via each test on the I/O of single-chip microcomputer, certain two ports correspondence in other words conj.or perhaps that have been when this p-wire connect, can read signal 0 at the port of that line of correspondence that connects single-chip processor i/o mouth, otherwise be signal 1, single-chip microcomputer can analyze the multiple Wiring faults such as open circuit that return signal just can test out multiple interfaces line, short circuit, intersection, misconnection thus; Last single-chip microcomputer shows measured result by display module.The utility model not only can fast detecting outgoing interface transmission line quality, the most easily for tester provides line fault information; And greatly simplified hardware circuit and the cost of interface line proving installation, have directly perceived, accurately, advantage reliably, and there is higher practical value.
Brief description of the drawings
Fig. 1 is the theory diagram of a kind of portable multi-function interface line of the utility model proving installation.
Embodiment
A kind of portable multi-function interface line proving installation, as shown in Figure 1, it is mainly made up of test signal load module, interface line handover module, detection signal distribution module, single-chip microcomputer and display module.Wherein test signal load module comprises network cable socket J1, J5, usb signal line socket J2, J6, BNC cable socket J3, J7, and telephone line socket J4, J8.Interface line handover module comprises 8 toggle switch S5, S8, and 4 toggle switch S6, S7, S9, S10.Detection signal distribution module comprises multi-channel switcher.8 pins of network cable socket J5 are connected with the P1.0-P1.7 pin of single-chip microcomputer through 8 toggle switch S5,4 pins of usb signal line socket J8 are connected with the P1.0-P1.3 pin of single-chip microcomputer through 4 toggle switch S7,2 pins of BNC cable socket J6 and 2 pins of telephone line socket J7 are connected to one end of 4 toggle switch S6 simultaneously, and the other end of 4 toggle switch S6 is connected with the P1.4-P1.7 pin of single-chip microcomputer.8 pins of network cable socket J1 are connected with the X0-X7 pin of multi-channel switcher through 8 toggle switch S8,4 pins of usb signal line socket J2 are connected with the X4-X7 pin of multi-channel switcher through 4 toggle switch S9,2 pins of BNC cable socket J3 and 2 pins of telephone line socket J4 are connected to one end of 4 toggle switch S10 simultaneously, and the other end of 4 toggle switch S10 is connected with the X0-X3 pin of multi-channel switcher.3 address pin A, B, the C of multi-channel switcher are connected with P3.0, P3.1, the P3.2 pin of single-chip microcomputer.The P0.0-P0.7 pin of single-chip microcomputer is connected with the DB0-DB7 pin of display module.Above-mentioned proving installation can independently use, but in the time carrying out large-scale networking and safeguard, the test result of this proving installation gained is more, single-chip microcomputer internal memory possibly cannot be stored a large amount of data, therefore above-mentioned proving installation can also be connected with outside host computer, so both proving installation acquired results can be stored in the storer that storage space is larger, and host computer also can comprehensively be analyzed these test results.
Taking netting twine test as example, the utility model is further elaborated below:
In order to detect the line order of tested netting twine and the break-make situation of each root heart yearn thereof, native system is made up of main circuit and display circuit two parts.Signal distribution circuit in main circuit has route selection and feeding function.It periodically receives the 1-8 root heart yearn in tested netting twine according to the order of sequence in turn, and be fed to test signal (high level " 1 ") to it, test signal is transferred to the netting twine other end through this heart yearn, display circuit is mainly used in the break-make situation of each heart yearn in display line order and netting twine, coordinates main circuit to complete test job.Like this, test signal is transferred to the relevant pins of single-chip microcomputer, then analyzes data by single-chip microcomputer inter-process, thereby obtains corresponding data, then delivers to LCD by another group I/O port of single-chip microcomputer, thereby can demonstrate intuitively by the failure condition of survey line.Test signal testing circuit gathered the signal on other 7 heart yearns in turn according to certain cycle.If collect level"1", illustrate that this line connectivity is normal, otherwise, can judge that this connection is bad.
Test signal distributor circuit of the present utility model adopts multi-channel switcher CD4051, and it is the core of whole system, for optimization system designs, adopts the thought of program control route selection.CD4051 is one able to programme eight and selects one low-voltage simulation multi-channel switcher (the conducting resistance RON of CD4051 is generally 125 Ω) to meet hyperchannel completely to switch requirement, and hyperchannel commutation circuit single chip computer AT 89S52 makes main control chip.Multi-channel switcher CD4051 is equivalent to hilted broadsword eight throw switches, and which passage of switch connection is decided by the 3 bit address code ABC that input." INH " forbids end, and in the time of " INH "=1, each passage is all disconnected.In addition, multi-channel switcher CD4051 is also provided with another one power end VEE, use when as level shift, thereby the digital signal that the cmos circuit of conventionally working is provided can directly be controlled this multi-way switch, and make this multi-way switch can transmit peak-to-peak value to reach the AC signal of 15V under single group Power supply condition.The X pin of multi-channel switcher CD4051 is as test signal input end, and input signal is 0; X0 to X7 is 8 road analog input ends, is connected respectively the 7th line of 0-of tested netting twine.3 passage control line A, B, the C of multi-channel switcher CD4051 are connected with the pin P1.0-P1.7 mouth of 89S52 single-chip microcomputer after line after tested, INH ground connection.By send number to drive multi-channel switcher CD4051 to realize the switching of test channel to 89S52 single-chip microcomputer P1 mouth, and export test signal to tested passage.In the time that ABC value is 0, select the 0th line to carry out data transmission; When ABC value is 1, select the 1st line to test; ABC value is 2 o'clock, selects the 0th line to carry out data transmission; ABC value is 3 o'clock, selects the 0th line to carry out data transmission; ABC value is 4 o'clock, selects the 0th line to carry out data transmission; ABC value is 5 o'clock, selects the 0th line to carry out data transmission; ABC value is 6 o'clock, selects the 0th line to carry out data transmission; ABC value is 7 o'clock, selects the 0th line to carry out data transmission.Address code A is low level, and C is high-order.
Interface line handover module of the present utility model is realized by toggle switch.Control and select those lines to test with toggle switch, it has the advantage of operation simple and convenient.Toggle switch is a address switch that operation controls that is used for, employing be 0,1 binary coding principle, be a miniature switch that can manually stir.What toggle switch was selected in the utility model is 8 and 4 s' flat dialling and direct insertion toggle switch.The utility model adopts eight toggle switchs to be connected with each socket, receives the corresponding I/O of CD4051 chip and single-chip microcomputer place.The break-make of sending out by toggle switch, thus select any group p-wire to test.Toggle switch J1, J2, J3, J4 are respectively the socket of netting twine, usb signal line, BNC cable and telephone wire, connect one end of each p-wire; Its corresponding S8, S9, S10 are three toggle switchs, are used for switching each group of p-wire.Which toggle switch conducting, explanation is to select which line to test.Toggle switch J5, J6, J7, J8 are the sockets of each p-wire, the other end of corresponding connecting test line, and each heart yearn is transferred to other end data from of p-wire.Equally, each socket or correspondence connect each toggle switch, to realize the manual line selection control to p-wire.
The route selection cycle of CD4051 chip is greater than testing circuit the signal on other 7 heart yearns is detected respectively once to the required time.Single-chip microcomputer obtains 8 groups of test datas, exists in the register of single-chip microcomputer, and single-chip microcomputer carries out the data analysis of following mode: analyze one by one 8 data.Analyzed data and FFFF phase and negate again, obtain numerical value A, then get the logarithm taking 2 end of as of A, obtain numerical value B, its B is exactly the line order of that root line of being connected with tested line.Data are sent by CD4051 chip, pass to 8 I/O mouths of single-chip microcomputer P1 mouth via each p-wire, when this p-wire is good, certain two ports correspondence connects in other words conj.or perhaps, so, can read signal 0 at the port of that line of correspondence that connects P1 mouth, otherwise be signal 1.By such method, can analyze the various Wiring faults of normal connection, short circuit, intersection and the misconnection of p-wire.
What display module of the present utility model adopted is 12864ZW graphic dot matrix liquid crystal display, it is mainly made up of line driver/row driver and the full lattice lcd display of 128X64, can complete figure shows, also (16X16 dot matrix Chinese character can adopt the control of serial or parallel mode with outer CPU interface can to show 8X4.Single-chip microcomputer carries out surveyed data after Treatment Analysis, send LCD to, after certain two line connects, on liquid crystal, can show the numeral of ' line order line order ' such form, can be simple and clear know is which two line has connected above, or which two line has disconnected.
Claims (3)
1. a portable multi-function interface line proving installation, is characterized in that: be mainly made up of test signal load module, interface line handover module, detection signal distribution module, single-chip microcomputer and display module; Wherein test signal load module comprises network cable socket J1, J5, usb signal line socket J2, J6, BNC cable socket J3, J7, and telephone line socket J4, J8; Interface line handover module comprises 8 toggle switch S5, S8, and 4 toggle switch S6, S7, S9, S10; Detection signal distribution module comprises multi-channel switcher;
8 pins of network cable socket J5 are connected with the P1.0-P1.7 pin of single-chip microcomputer through 8 toggle switch S5,4 pins of usb signal line socket J8 are connected with the P1.0-P1.3 pin of single-chip microcomputer through 4 toggle switch S7,2 pins of BNC cable socket J6 and 2 pins of telephone line socket J7 are connected to one end of 4 toggle switch S6 simultaneously, and the other end of 4 toggle switch S6 is connected with the P1.4-P1.7 pin of single-chip microcomputer;
8 pins of network cable socket J1 are connected with the X0-X7 pin of multi-channel switcher through 8 toggle switch S8,4 pins of usb signal line socket J2 are connected with the X4-X7 pin of multi-channel switcher through 4 toggle switch S9,2 pins of BNC cable socket J3 and 2 pins of telephone line socket J4 are connected to one end of 4 toggle switch S10 simultaneously, and the other end of 4 toggle switch S10 is connected with the X0-X3 pin of multi-channel switcher;
3 address pin A, B, the C of multi-channel switcher are connected with P3.0, P3.1, the P3.2 pin of single-chip microcomputer; The P0.0-P0.7 pin of single-chip microcomputer is connected with the DB0-DB7 pin of display module.
2. a kind of portable multi-function interface line proving installation according to claim 1, is characterized in that: on the output terminal of described single-chip microcomputer, be also connected to host computer.
3. a kind of portable multi-function interface line proving installation according to claim 1 and 2, is characterized in that: described 8 toggle switchs and 4 toggle switchs are flat dialling and direct insertion toggle switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420181316.0U CN203786242U (en) | 2014-04-15 | 2014-04-15 | Portable multifunctional interface cable test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420181316.0U CN203786242U (en) | 2014-04-15 | 2014-04-15 | Portable multifunctional interface cable test device |
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| CN203786242U true CN203786242U (en) | 2014-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420181316.0U Expired - Fee Related CN203786242U (en) | 2014-04-15 | 2014-04-15 | Portable multifunctional interface cable test device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510762A (en) * | 2016-01-05 | 2016-04-20 | 东莞铭基电子科技集团有限公司 | Intelligent test circuit and test method for USB TYPE-C wire |
| CN108981828A (en) * | 2018-10-10 | 2018-12-11 | 湖南城控科技有限公司 | Intelligent detecting instrument |
| CN109406931A (en) * | 2018-11-01 | 2019-03-01 | 上海开通数控有限公司 | Servo drive system cable detecting device |
| CN111025188A (en) * | 2019-12-31 | 2020-04-17 | 广东虹勤通讯技术有限公司 | Automatic testing tool for short circuit of USB interface |
| CN111948579A (en) * | 2019-04-29 | 2020-11-17 | 深圳市优必选科技有限公司 | Detection method and detection system for terminal connecting wire |
-
2014
- 2014-04-15 CN CN201420181316.0U patent/CN203786242U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510762A (en) * | 2016-01-05 | 2016-04-20 | 东莞铭基电子科技集团有限公司 | Intelligent test circuit and test method for USB TYPE-C wire |
| CN105510762B (en) * | 2016-01-05 | 2019-03-01 | 东莞铭基电子科技集团有限公司 | The test method of intelligence test circuit for USB TYPE-C wire rod |
| CN108981828A (en) * | 2018-10-10 | 2018-12-11 | 湖南城控科技有限公司 | Intelligent detecting instrument |
| CN109406931A (en) * | 2018-11-01 | 2019-03-01 | 上海开通数控有限公司 | Servo drive system cable detecting device |
| CN111948579A (en) * | 2019-04-29 | 2020-11-17 | 深圳市优必选科技有限公司 | Detection method and detection system for terminal connecting wire |
| CN111025188A (en) * | 2019-12-31 | 2020-04-17 | 广东虹勤通讯技术有限公司 | Automatic testing tool for short circuit of USB interface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20150415 |
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| EXPY | Termination of patent right or utility model |