CN209656835U

CN209656835U - A kind of two core cable of long-distance intelligent is to line circuit

Info

Publication number: CN209656835U
Application number: CN201920233204.8U
Authority: CN
Inventors: 雷尚谕
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-02-22
Filing date: 2019-02-22
Publication date: 2019-11-19
Anticipated expiration: 2029-02-22

Abstract

The utility model provides a kind of two core cable of long-distance intelligent to line circuit.The mainboard to line circuit is identical with the internal circuit from plate, includes: processor, power supply, the first triode, the first relay, optocoupler, the second triode and the second relay and external three terminals Ps 1, P2 and P3；Processor has the first control terminal, the second control terminal and detection signal receiving end；The terminals P 1 of mainboard connects the normally-closed contact of the first relay, and the terminals P 2 of mainboard connects the normally-closed contact of the second relay, and the terminals P 3 of mainboard is grounded；It is grounded from the terminals P 1 of plate, the normally-closed contact of the first relay is connect from the terminals P 2 of plate, the normally-closed contact of the second relay is connect from the terminals P 3 of plate.The circuit structure of the utility model is concise, by mainboard, from the setting of the high and low level of plate control signal, it will be able to whether the both ends for easily distinguishing remote two core cable are the same cable core and cable is complete.

Description

A kind of two core cable of long-distance intelligent is to line circuit

Technical field

The utility model relates to industrial communication hardware technology fields, and in particular to one kind is used for industrial communication long-distance intelligent Two core cables are to line circuit.

Background technique

At present when whether distinguish the both ends of remote two cores armouring copper core cable is same root cable core, mainly use It is single-ended transmitting, single-ended reception pattern intelligent alignment device, this device only have receiving end know to line complete, mainboard transmitting terminal It can not confirm.Therefore, it makes a phone call to confirm dependent on intelligent both ends staff, it is easy to due to originals such as oral informing other side mistakes It is judged by accident because caused by, so that wiring error, working efficiency is reduced.

Utility model content

The utility model provides a kind of two core cable of reliable long-distance intelligent to line circuit, can distinguish remote two core Whether the both ends of cable are the same cable core and cable is complete, and manually mutually confirm without both ends.

The technical solution of the utility model is as follows:

Two core cable of long-distance intelligent is divided into mainboard and from plate, the mainboard and the internal circuit from plate to line circuit It is identical, include: processor, power supply, the first triode, the first relay, optocoupler, the second triode and the second relay and External three terminals Ps 1, P2 and P3；Processor has the first control terminal, the second control terminal and detection signal receiving end, wherein The base stage of first control the first triode of termination, the emitter ground connection of the first triode, the collector of the first triode connect first The coil of relay；The base stage of second control the second triode of termination, the emitter ground connection of the second triode, the second triode Collector connects the coil of the second relay；The normally opened contact of the normally-closed contact of first relay and the second relay connects power supply； The normally-closed contact of the normally opened contact of first relay and the second relay is connected to the primary of optocoupler altogether, and the secondary of optocoupler is connected to processing The detection signal receiving end of device；

The terminals P 1 of mainboard connects the normally-closed contact of the first relay, and the terminals P 2 of mainboard connects the normally closed touching of the second relay The terminals P 3 of point, mainboard is grounded；

It is grounded from the terminals P 1 of plate, the normally-closed contact of the first relay is connect from the terminals P 2 of plate, connect the from the terminals P 3 of plate The normally-closed contact of two relays.

Further, mainboard and the first triode from plate and the second triode are NPN triode.

Further, mainboard and from plate, the first relay, the second relay coil be parallel with a Xiao Te respectively Based diode.

Compared with the prior art, the utility model has the following advantages:

Circuit structure is concise, by mainboard, from the setting of the high and low level of plate control signal, it will be able to easily distinguish Whether the both ends of remote two core cable are the same cable core and cable is complete, to ensure that remote two core cable to line Working efficiency and stability.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the utility model.

Fig. 2 is the circuit structure diagram of mainboard.

Fig. 3 is the circuit structure diagram from plate.

Drawing reference numeral explanation:

101, the first triode of 201-；102, the first relay of 202-；103,203- optocoupler；104, the two or three pole 204- Pipe；105, the second relay of 205-.

Specific embodiment

With reference to the accompanying drawing and embodiment, the technical solution of the utility model is described in further detail.

Two core cable of long-distance intelligent includes mainboard and from plate to line circuit, as shown in Figure 1-Figure 3, mainboard and from plate Circuit structure is essentially identical, includes: processor, power supply, the first triode, the first relay, optocoupler, the second triode and Two relays and external three terminals Ps 1, P2 and P3；Processor has the first control terminal, the second control terminal and detection signal Receiving end, wherein the base stage of first control the first triode of termination, the emitter ground connection of the first triode, the collection of the first triode Electrode connects the coil of the first relay；The base stage of second control the second triode of termination, the emitter ground connection of the second triode, the The collector of two triodes connects the coil of the second relay；The normally opened contact of the normally-closed contact of first relay and the second relay Connect power supply；The normally-closed contact of the normally opened contact of first relay and the second relay is connected to the primary of optocoupler, time of optocoupler altogether Grade is connected to the detection signal receiving end of processor.

Mainboard and the connection that three terminals Ps 1, P2 and P3 are only that from the difference of plate, it may be assumed that

For have label distinguish firewire/zero curve two core cable, the mode of connection are as follows: the end mainboard P3 and from plate P1 with two cores The connection of armature of cable layer, the corresponding end P3, the end P2 of mainboard from plate in the end P1 of mainboard is corresponding from the end P2 of plate, passes through two cores electricity Cable connection.As shown in Figure 1.

Detection mode: setting mainboard POWER_CROL1 and POWER_CROL2 are low level, from plate POWER_CROL1 and POWER_CROL2 is low level, and the CHECK_IN according to the CHECK_IN of mainboard and from plate is to determine whether be the same cable Core and cable is complete.The specific working principle is as follows:

It is low level that mainboard POWER_CROL1 and POWER_CROL2, which is arranged, then its first triode and the second triode are Off state, the first relay and the second relay are not attracted, and the end P1 is output end and output high level, and the end P2 is input terminal； It is low level from plate POWER_CROL1 and POWER_CROL2, then its first triode and the second triode are off state, the One relay and the second relay are not attracted, and the end P2 is output end and output high level, and the end P3 is input terminal.That is: according to above-mentioned The mode of connection, if mainboard and being connected in the same cable core from plate and cable is complete, the end P1 of mainboard exports high level, will It is received from the end P3 of plate；High level is exported from the end P2 of plate, will be received by the end P2 of mainboard.At this point, mainboard and the light from plate Coupling is both turned on, and the CHECK_IN of mainboard becomes high level, then illustrates that mainboard knows that the end P1 and the end P3 from plate belong to same root copper Core wire and copper core be complete, the end the mainboard P2 and end P2 from plate belongs to same root copper core and copper core is complete；From plate CHECK_IN becomes high level, then illustrates to know the end mainboard P1 from plate and the end P3 from plate is same root copper core and copper core is complete The whole, end mainboard P2 and the end P2 from plate are same root copper core and copper core is complete.

For the two core cable that no label is distinguished, need to consider further that another situation: although mainboard and being connected in from plate The same cable core and cable are complete but core wire intersection connects.For this purpose, after carrying out the above detection process, if not can confirm that For same root copper core and copper core it is complete, then change mainboard or from the POWER_CROL1 and POWER_CROL2 of plate be high electricity Flat, CHECK_IN according to the CHECK_IN of mainboard at this time and from plate finally judges.Such as:

It is low level that mainboard POWER_CROL1 and POWER_CROL2, which is still arranged, and the first triode and the second triode are Off state, the first relay and the second relay are not attracted, and the end P1 is output end and output high level, and the end P2 is input terminal； It is set as high level from the POWER_CROL1 and POWER_CROL2 of plate, the first triode and the second triode are conducting shape State, the first relay and the second relay are attracted, and the end P3 is output end and output high level, and the end P2 is input terminal；That is: according to working as Preceding wiring state, if mainboard and being connected in the same cable core from plate and cable is complete, the end P1 of mainboard exports high level, It will be received from the end P2 of plate；High level is exported from the end P3 of plate, will be received by the end P2 of mainboard.At this point, mainboard and from plate Optocoupler conducting, the CHECK_IN of mainboard become high level, then illustrate that mainboard knows that the end P1 and the end P2 from plate belong to same root copper Core wire and complete, the end the mainboard P2 and end P3 from plate belongs to same root copper core and copper core is complete；Become from the CHECK_IN of plate At high level, then illustrates to know the end mainboard P1 from plate and the end P2 from plate is same root copper core and copper core is complete, mainboard P2 It holds and the end P3 from plate is same root copper core and copper core is complete.

If detected twice by aforementioned, mainboard and the CHECK_IN from plate are always low level, then illustrate mainboard and from Plate connects the not same cable core or two core cables are imperfect (having fracture).

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model Protection scope within.

Claims

1. a kind of two core cable of long-distance intelligent to line circuit, is divided into mainboard and from plate, which is characterized in that the mainboard and from plate Internal circuit it is identical, include: processor, power supply, the first triode (101,201), the first relay (102,202), light Coupling (103,203), the second triode (104,204) and the second relay (105,205) and three external terminals Ps 1, P2 and P3；Processor has the first control terminal, the second control terminal and detection signal receiving end, wherein first control the first triode of termination Base stage, the emitter ground connection of the first triode, the collector of the first triode connects the coil of the first relay；Second control terminal The base stage of the second triode, the emitter ground connection of the second triode are connect, the collector of the second triode connects the line of the second relay Circle；The normally opened contact of the normally-closed contact of first relay and the second relay connects power supply；The normally opened contact of first relay and The normally-closed contact of second relay is connected to the primary of optocoupler altogether, and the secondary of optocoupler is connected to the detection signal receiving end of processor；

The terminals P 1 of mainboard connects the normally-closed contact of the first relay, and the terminals P 2 of mainboard connects the normally-closed contact of the second relay, main The terminals P 3 of plate is grounded；

From the terminals P 1 of plate be grounded, the normally-closed contact of the first relay is connect from the terminals P 2 of plate, from the terminals P 3 of plate connect second after The normally-closed contact of electric appliance.

2. two core cable of long-distance intelligent according to claim 1 is to line circuit, it is characterised in that: mainboard and from plate One triode and the second triode are NPN triode.

3. two core cable of long-distance intelligent according to claim 1 is to line circuit, it is characterised in that: mainboard and from plate, First relay, the second relay coil be parallel with a Schottky diode respectively.