CN209070052U - A kind of wireline test tooling - Google Patents

Abstract

The utility model provides a kind of wireline test tooling, unit containing first processor, second processor unit, FPGA unit, man-machine interaction unit and connector modules；First processor unit is connect with second processor unit communication, and FPGA unit is connected with first processor unit communication, and man-machine interaction unit and second processor unit are electrically connected；The connector modules include several equivalent resistance cross matrixes and several communication interface groups, and any communication interface group includes the first transmission module configuration interface, the second transmission module configuration interface, cross matrix configuration interface, the first output interface of cross matrix, the second output interface of cross matrix；First transmission module configures interface, the second transmission module configuration interface, cross matrix configuration interface and FPGA unit and is electrically connected, and the first output interface of cross matrix, the second output interface of cross matrix is connect with equivalent resistance cross matrix respectively.The utility model has the beneficial effects that can Fast simulation test result or as test compare, improve testing efficiency.

Description

A kind of wireline test tooling

Technical field

The utility model relates to power test equipment, and in particular to a kind of wireline test tooling.

Background technique

Line loss test is carried out, one way in which is to carry out transporting test using the voltage and current of test equipment cable, It is applied to two sections of cable of voltage by measuring, electric current, and obtain by Ohm's law the resistance situation of cable, when line occurs in cable When damage, then its resistance will appear variation, when applying high frequency voltage, due to the presence of skin effect and tiring out for different length Add, measurement result will necessarily change, it is important that measurement process inevitably brings contact resistance and equivalent electricity The parameters such as anti-are estimated that, when there are different test results, contact resistance part will give tester under different situations Member brings puzzlement, how to determine different length, the cable of different line footpaths needs more time to determine problem place, in order to solve This problem, it is necessary to be furtherd investigate.

Utility model content

For the deficiency in the presence of the prior art, the utility model provides the wireline test tooling of auxiliary detection.

To achieve the above object, the utility model uses the following technical solution:

A kind of wireline test tooling includes first processor unit, second processor unit, FPGA unit, human-computer interaction Unit and connector modules；Wherein first processor unit is connect with second processor unit communication, FPGA unit and first Processor unit communication is connected, and man-machine interaction unit and second processor unit are electrically connected；If the connector modules include Dry equivalent resistance cross matrix and several communication interface groups, any communication interface group include the first transmission module configuration interface, Second transmission module configuration interface, cross matrix configuration interface, the first output interface of cross matrix, the output of cross matrix second connect Mouthful；Wherein, the first transmission module configuration interface, the second transmission module configuration interface, cross matrix configuration interface and FPGA unit It being electrically connected, the first output interface of cross matrix, the second output interface of cross matrix is connect with equivalent resistance cross matrix respectively, The switching of different length cable equivalent resistance is realized in conjunction with equivalent resistance cross matrix.

Further, the equivalent resistance cross matrix includes first resistor matrix, second resistance matrix, wherein the first electricity Hinder the structure of matrix and the symmetrical configuration of second resistance matrix；It include several electricity in first resistor matrix or second resistance matrix Resistance and analog switch, mesh-structured, first resistor that each resistance by the switch terminals of analog switch is connected as single or multiple day shapes Matrix is connected with one end of second resistance matrix with the first output interface of cross matrix, first resistor matrix and second resistance matrix The other end be connected with the second output interface of cross matrix；The address end of analog switch is connected with the output of FPGA unit.

When the utility model is used, by external voltage output device, voltage measuring apparatus is matched with the first transmission module respectively Set interface, the second transmission module configuration interface connection, voltage output device, voltage measuring apparatus again respectively with cross matrix first Output interface, cross matrix the second output cross interface are connected；It is handed over when FPGA unit exports different conditions level to equivalent resistance When pitching the analog switch address end in matrix, the corresponding switch terminals switching action of analog switch, so that in first resistor matrix, the The equivalent resistance corresponding change at both ends corresponds to different electricity in different length according to the specifications parameter of cable in two resistor matrixes Parameter is hindered, the simulation of corresponding resistance parameter is realized by equivalent resistance cross matrix；By test, corresponding specification line can be judged The test result range of cable, so as to easily carry out wireline test.

Compared with the prior art, the utility model has the following beneficial effects: avoiding test device itself or contact electricity Resistance etc. parameters bring test error, can Fast simulation test gained signal, and facilitate selection and debug to preferably test Environment or test mode.In addition, easy to operate, test jobs accuracy rate is improved, while the training for also reducing operating personnel is difficult Degree.

Detailed description of the invention

Fig. 1 is the functional block diagram of embodiment.

Fig. 2 is the circuit theory schematic diagram of first resistor matrix, second resistance matrix in embodiment.

Specific embodiment

The technical solution in the utility model is further illustrated with reference to the accompanying drawings and embodiments.

A kind of wireline test tooling, as shown in Figure 1, mono- comprising first processor unit, second processor unit, FPGA Member, man-machine interaction unit and connector modules；Wherein first processor unit is connect with second processor unit communication, FPGA Unit is connected with first processor unit communication, and man-machine interaction unit and second processor unit are electrically connected；The connector Module includes several equivalent resistance cross matrixes and several communication interface groups, and any communication interface group includes the first transmission module Configure interface, the second transmission module configures interface, cross matrix configuration interface, the first output interface of cross matrix, cross matrix Second output interface；Wherein, the first transmission module configuration interface, the second transmission module configure interface, cross matrix configuration interface It is electrically connected with FPGA unit, the first output interface of cross matrix, the second output interface of cross matrix is handed over equivalent resistance respectively Matrix connection is pitched, the switching of different length cable equivalent resistance is realized in conjunction with equivalent resistance cross matrix.

The equivalent resistance cross matrix includes first resistor matrix, second resistance matrix, wherein first resistor matrix The symmetrical configuration of structure and second resistance matrix；Include several resistance and simulation in first resistor matrix or second resistance matrix Switch, it is mesh-structured that each resistance by the switch terminals of analog switch is connected as single or multiple day shapes, as shown in Fig. 2, first is electric Hindering matrix/second resistance matrix includes resistance R1~R8, switch S1~S8, in figure switch S1~S5 for analog switch switch End；First resistor matrix/second resistance matrix includes the first branch, second branch and third branch in parallel, wherein first Road includes resistance R1, switch S1 and the resistance R2 of sequential series connection, and second branch includes the resistance R3 of sequential series connection, opens S3 and resistance R4 is closed, third branch includes resistance R5, switch S5 and the resistance R6 of sequential series connection；In resistance R1 and switch S1 Connecting pin, pass through switch S2 connection between resistance R3 and the connecting pin of switch S3；Connecting pin, electricity in resistance R3 and switch S3 It hinders and passes through switch S4 connection between R5 and the connecting pin of switch S5；In connecting pin, resistance R4 and the switch of resistance R2 and switch S1 It is connected between the connecting pin of S3 by resistance R7, in the connecting pin of resistance R6 and switch S5, the connecting pin of resistance R4 and switch S3 Between by resistance R8 be connected；It is resistance R1, R3, R5 and connect end be first resistor matrix/second resistance matrix one of them Connecting pin, resistance R2, R4, R6 and connect end be another connecting pin of first resistor matrix/second resistance matrix；Pass through switch The different switchings of S1~S5, are able to achieve different equivalent resistance between first resistor matrix/two, second resistance matrix connecting pin Variation, to simulate the state of different length cable；In resistance R1~R8 wherein one or more or be also parallel with Inductance, more accurately to simulate the practical electrical parameter of different length cable；First resistor matrix and second resistance matrix One end be connected with the first output interface of cross matrix, the other end and cross matrix of first resistor matrix and second resistance matrix Second output interface is connected；The address end of analog switch is connected with the output of FPGA unit；The man-machine interaction unit includes to press Key module and display module include also CPLD unit, and the CPLD unit is connected with second processor unit, CPLD unit it is defeated Outlet is connected with display module, can realize that display module abundant connects by CPLD unit I/O port abundant.

It also include pull box shell, the first control box shell, the second control box shell and mobile loading platform, each connection Device module is placed in pull box shell, is correspondingly provided on pull box shell and the matched aperture of communication interface group.Described first Processor unit, FPGA unit are placed in the first control shell, and the second processor unit is placed in outside the second control box In shell, man-machine interaction unit is placed in the second control shell or is inlaid on the shell wall of the second control shell.The pull box Shell, the first control box shell, the second control box shell are placed on mobile loading platform.To facilitate actual use, and protect The intracorporal circuit board arrangement of protective case.

Finally, it is stated that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng The utility model is described in detail according to preferred embodiment, those skilled in the art should understand that, it can be to this The technical solution of utility model is modified or replaced equivalently, without departing from the objective and model of technical solutions of the utility model It encloses, should all cover in the scope of the claims of the utility model.

Claims (6)

1. a kind of wireline test tooling, it is characterised in that: comprising first processor unit, second processor unit, FPGA unit, Man-machine interaction unit and connector modules；Wherein first processor unit is connect with second processor unit communication, and FPGA is mono- Member is connected with first processor unit communication, and man-machine interaction unit and second processor unit are electrically connected；The connector mould Block includes several equivalent resistance cross matrixes and several communication interface groups, and any communication interface group includes that the first transmission module is matched Set interface, the second transmission module configuration interface, cross matrix configuration interface, the first output interface of cross matrix, cross matrix the Two output interfaces；Wherein, the first transmission module configuration interface, the second transmission module configuration interface, cross matrix configuration interface with FPGA unit is electrically connected, and the first output interface of cross matrix, the second output interface of cross matrix intersects with equivalent resistance respectively Matrix connection, the switching of different length cable equivalent resistance is realized in conjunction with equivalent resistance cross matrix.

2. a kind of wireline test tooling as described in claim 1, it is characterised in that: the equivalent resistance cross matrix includes the One resistor matrix, second resistance matrix, the wherein symmetrical configuration of the structure of first resistor matrix and second resistance matrix；First It include several resistance and analog switch in resistor matrix or second resistance matrix, each resistance is connected by the switch terminals of analog switch Mesh-structured for single or multiple day shapes, first resistor matrix and one end of second resistance matrix connect with the output of cross matrix first Mouth is connected, and first resistor matrix is connected with the other end of second resistance matrix with the second output interface of cross matrix；Analog switch Address end be connected with the output of FPGA unit.

3. a kind of wireline test tooling as described in claim 1, it is characterised in that: also include CPLD unit, the CPLD is mono- Member is connected with second processor unit.

4. a kind of wireline test tooling as described in claim 1, it is characterised in that: it also include pull box shell, it is each to connect Device module is correspondingly provided with and the matched aperture of communication interface group in pull box shell on pull box shell.

5. a kind of wireline test tooling as claimed in claim 4, it is characterised in that: also comprising the first control box shell and second Box shell is controlled, the first processor unit, FPGA unit are placed in the first control shell, the second processor unit It is placed in the second control box shell, man-machine interaction unit is placed in the second control shell or is inlaid in the second control shell On shell wall.

6. a kind of wireline test tooling as claimed in claim 5, it is characterised in that: also include mobile loading platform；It is described to draw Wire box shell, the first control box shell, the second control box shell are placed on mobile loading platform.