CN209182417U

CN209182417U - Cable tie lines detector

Info

Publication number: CN209182417U
Application number: CN201821579273.6U
Authority: CN
Inventors: 张朝樑
Original assignee: SHANGHAI MENGBO ELECTRICAL APPLIANCE CO Ltd
Current assignee: SHANGHAI MENGBO ELECTRICAL APPLIANCE CO Ltd
Priority date: 2018-09-27
Filing date: 2018-09-27
Publication date: 2019-07-30
Anticipated expiration: 2028-09-27

Abstract

The utility model provides a kind of cable tie lines detector, including host and handset, 7 concatenated dropping resistors of resistance are equipped in handset, form 8 endpoints, a LED light is connected between every 2 endpoints, referred to as FAIL lamp, a LED light, which is connected, between any two FAIL lamps is known as PASS lamp, host is equipped with controller, controller controls A, the end B endpoint selection switch, A, the end B voltage-selected switch and sampling end point selection switch, when cable detects, 8 cables are connect with 8 endpoints, there is a dropping resistor between every two cables, main controller controls sampling end point selection switch, it detects compared with the voltage on 7 dropping resistors sets value with sequence, if consistent, then tie lines is correct, main controller controls A, the end B endpoint selection switch, A, the end B voltage-selected switch, light PASS Lamp lights FAIL lamp if inconsistent.

Description

Cable tie lines detector

Technical field

The utility model relates to the test devices of network line.

Background technique

After the both ends of cable and connector complete tie lines engineering, wherein a most important detection project is exactly to detect tie lines Correctness.Currently, the correctness of detection cable tie lines, the detection method generallyd use is each core wire in cable On (or a pair of of core wire), a upper LED light is respectively gone here and there in host computer side and handset side and carries out circulation lighting, and according to lighting sequence To judge the correctness of tie lines.The method of this artificial judgment had both been likely to occur misjudgment, and detection speed is again slow, Working efficiency is extremely low, is not suitable for large-scale cable engineering.

Summary of the invention

To solve the problems of aforementioned cable tie lines detection, the utility model provides a kind of cable tie lines detector.

Cable has 8, including host and handset, has panel on host and handset, has instruction lamp insertion hole on panel, in handset 7 concatenated dropping resistors of resistance are equipped with, 8 endpoints a, b, c, d, e, f, g, h are formed, at the end ab to, the end cd to, the end ef It is referred to as FAIL lamp to LED light is separately connected between, the end pair gh, LED light is connected between the end pair bc and is referred to as PASS lamp, on host Equipped with controller, controller controls the end A endpoint selection switch, the end B endpoint selects switch, the end A voltage-selected switch, the end B voltage Selection switch and sampling end point selection switch, when cable detects, 8 endpoints and 8 cables are connected in handset, main controller control A, the end B endpoint selection switch, makes the end A meet voltage VCC by resistance R1, and the end B is tested back by resistance R2 earthing potential, formation Road, main controller control sampling end point selection switch take the voltage between 8 endpoints on dropping resistor and compared with preset values, if Consistent with preset value, then cable tie lines is correct, and main controller controls A, B endpoint selection switch and A, B voltage-selected switch, puts transom The PASS lamp of pusher side, if inconsistent with preset value, tie lines is incorrect, lights the FAIL lamp of handset side.

The end A, B endpoint selection switch, be main controller control the switch (1) in single-ended 8 channel, (2), (3), (4), (5), (6), some endpoint therein is selected as A, B endpoint in (7), (8).

The end A voltage-selected switch is the switch that single-ended 2 channel is controlled by main controller, by resistance R1 connection voltage vcc, Or earthing potential is supplied to the end A；The end B voltage-selected switch is the switch that single-ended 2 channel is controlled by main controller, and resistance R2 is grounded Current potential, or the end B is supplied to by resistance R3 connection voltage vcc.

The sampling end point selection switch, is the switch that main controller controls single-ended 8 channel, selectes~Certain in endpoint A endpoint is as voltage sample endpoint.

Differential pressure reducing of the end of PASS lamp or FAIL lamp in the handset between is designed as the conducting much smaller than LED light Voltage, thus the physical presence of negligible LED light.

It is additionally provided with PASS lamp and FAIL lamp on host panel, is lighted simultaneously with the PASS lamp or FAIL lamp of handset side.

The end A refers to that endpoint selection in the end A switchs selected contact, that is, this switchs the single-ended of single-ended 8 channel Endpoint.

The end B refers to that endpoint selection in the end B switchs selected contact, that is, this switchs the single-ended of single-ended 8 channel Endpoint.

The utility model has the advantages that entire test process be it is full-automatic, the judgement of test result is also inhuman For, and test speed is very about 1.3 seconds or so fastly, and the display of test result is simple and clear, to improve work Efficiency reduces engineering cost.

Detailed description of the invention

Attached drawing 1 is the utility model principle circuit diagram；

Attached drawing 2 is the schematic diagram of preset each endpoint (core wire) reduction voltage loop of test；

Attached drawing 3 is to light PASS circuit for lamp figure；

Attached drawing 4 is to light FAIL circuit for lamp figure；

Attached drawing 5 is contact selection switch and main controller wiring diagram；

Figure label explanation:

1- controller；2- host computer side test result indicator light (PASS lamp and FAIL lamp)；The end 3-A voltage-selected switch；4-A Hold endpoint selection switch；5- sampling end point selection switch；The end 6-B endpoint selection switch；The end 7-B voltage-selected switch；8- is tested Cable；9,11-FAIL lamp；10-PASS lamp, W- host；K- handset.

Specific embodiment

It please refers to shown in attached drawing 1, the utility model includes host W and handset K, main controller 1 is provided on host, respectively Control the end A voltage-selected switch 3, the end B voltage-selected switch 7, the end A endpoint selection switch 4, the end B endpoint selection switch 6, sampling Endpoint selects switch 5 and test result display lamp 2；It is respectively serially connected between 8 endpoints of handset side a, b, c, d, e, f, g, h One dropping resistor R4, R5, R6, R7, R8, R9, R10, and R4, R6, R8, R10 respectively and connect LED light 9,11, referred to as Mistake tie lines indicator light or FAIL lamp, R5 simultaneously connect a LED light 10, referred to as correct tie lines indicator light or PASS lamp.

The cable 8 of test object is made of 8 core wires (4 pairs of twisted pairs) and the connector at both ends, when the both ends of cable are each When from access host and handset, 8 core endpoints of host computer side、、、、、、、, 8 cores pair of corresponding handset side Answer endpoint a, b, c, d, e, f, g, h.

When detection, the controller of host controls the end A voltage-selected switch, the end A endpoint selection switch, the choosing of the end B voltage respectively Switch, the end B endpoint selection switch are selected, the end A is selected to the voltage vcc and endpoint of resistance R1 connection, the end B is selected to resistance R2 and is connected The earthing potential and endpoint connect, formed at this point, such as scheming attached 2 test loop, controller controls sampling end point selection switch, adopts It takes~The voltage of each endpoint, and compared with the relationship of preset each endpoint (core wire) differential pressure reducing carries out analysis, and if preset value Unanimously, then tie lines is correct, and controller can light PASS lamp on host and handset panel, if inconsistent with preset value, tie lines It is incorrect, then light FAIL lamp.

PASS lamp and the ignition of FAIL lamp are:

If cable tie lines is correct, endpoint~Connection with endpoint and a~h be it is determining, can be selected by the end A endpoint Switch selects A endpoint to endpoint, B endpoint is selected to endpoint by the end B endpoint selection switch, then, main controller control A endpoint (2) are selected earthing potential by the end A processed voltage-selected switch, and main controller controls the end B voltage-selected switch, selects B endpoint (3) by resistance R3 connection voltage VCC, PASS lamp 10 has been lighted, as shown in Fig. 3.

It is if cable tie lines is incorrect, that is, actual when having short circuit, broken string, intersecting tie lines and various wrong tie lines overlappings It is just different with the test loop of preset attached drawing 2 to be depressured test loop, for example, endpointAnd endpointShort circuit, it is incorrect Tie lines can more to more than one hundred million kinds according to different combinations, the lighting end in order to find out the end pair of a pair of of survival, as FAIL lamp Right, controller is by test, the differential pressure reducing relationship of more each endpoint of analysis, in a, b；c,d；e,f；G, a pair is found out in the end pair h Then the end pair of survival is selected A endpoint to endpoint a(or c, f, g endpoint by the end A endpoint selection switch), by the end B endpoint Selection switch selects B endpoint to endpoint b(or d, e, h endpoint), then the end A voltage-selected switch is controlled, select (1) endpoint, that is, a Endpoint earthing potential, then the end B voltage-selected switch is controlled, it selects b endpoint by resistance R3 connection voltage VCC, lights FAIL lamp, As shown in Figure 4.

The utility model also is provided with PASS lamp and FAIL lamp on host, controller light handset side PASS lamp or While FAIL lamp, the PASS lamp or FAIL lamp of host computer side are also lighted.

The utility model makes the end of PASS lamp or FAIL lamp in handset between, in returning for the decompression test to each endpoint Its differential pressure reducing is designed to the conducting voltage much smaller than LED light, can thus ignore the presence of LED light by Lu Zhong.

There are four handset side FAIL lamps, in order to only show as a FAIL lamp on handset side panel, therefore in design will They are concentrated in a FAIL lamp hole.

A possibility that due to various false wirings, is many and uncertain, and in the worst cases, handset side can not point The end pair of lamp, for example,、、、Endpoint all breaks, but host computer side has the aobvious of test result under any circumstance Show, therefore will not influence the judgement to incorrect cabling.

Attached drawing 5 is the schematic diagram of main controller 1 and each selection switch wire connection.Main controller can be implemented using single-chip microcontroller to each The control of a selection switch.

Claims

1. a kind of cable tie lines detector, including host and handset and tested cable 8, there are panel, face on host and handset Have instruction lamp insertion hole on plate, which is characterized in that in handset be equipped with 7 concatenated dropping resistors of resistance, formed 8 endpoint a, b, C, d, e, f, g, h are referred to as FAIL lamp to being separately connected LED light between, the end pair gh to, the end ef to, the end cd at the end ab, at the end pair bc Between connection LED light be referred to as PASS lamp, on host be equipped with controller, controller control the end A endpoint selection switch, the end B endpoint Select switch, the end A voltage-selected switch, the end B voltage-selected switch and sampling end point selection switch, when cable detects, handset Upper 8 endpoints and 8 cables are connected, and main controller controls the end A, B endpoint selection switch, and the end A is made to meet voltage VCC, B by resistance R1 End forms test loop by resistance R2 earthing potential, and main controller control sampling end point selection switch is taken to drop between 8 endpoints Voltage on piezoresistance and compared with preset value, if consistent with preset value, cable tie lines is correct, and main controller controls the end A, B end Point selection switch and the end A, B voltage-selected switch, light the PASS lamp of handset side, if inconsistent with preset value, tie lines is not just Really, the FAIL lamp of handset side is lighted.

2. cable tie lines detector according to claim 1, which is characterized in that the end A, B endpoint selection switch, is master control Device controls the switch (1) in single-ended 8 channel, (2), (3), (4), (5), (6), (7), (8), select some endpoint therein as A, B endpoint.

3. cable tie lines detector according to claim 1, which is characterized in that the end A voltage-selected switch is by master control Device controls the switch in single-ended 2 channel, and resistance R1 connection voltage vcc or earthing potential are supplied to the end A；The end B voltage-selected switch It is the switch for controlling single-ended 2 channel by main controller, is provided by resistance R2 earthing potential, or by resistance R3 connection voltage vcc Give the end B.

4. cable tie lines detector as described in claim 1 or 2, which is characterized in that the sampling end point selection switch, is main Control device controls the switch in single-ended 8 channel, selectes~Some endpoint in endpoint is as voltage sample endpoint.

5. cable tie lines detector according to claim 1, which is characterized in that PASS lamp or FAIL lamp in the handset The differential pressure reducing between is held, the conducting voltage much smaller than LED light is designed as.

6. cable tie lines detector according to claim 1, which is characterized in that be additionally provided on host panel PASS lamp and FAIL lamp is lighted simultaneously with the PASS lamp or FAIL lamp of handset.