CN115494425A - Network interface detector and network interface detection system - Google Patents

Abstract

The embodiment of the invention discloses a network interface detector and a network interface detection system. The system comprises a function selection module, a state display module, a network interface and a power supply module; the first detection loop is used for detecting whether the circuit to be detected is broken or not; the second detection loop is used for detecting whether the circuit to be detected has a short circuit; the function selection module is used for switching the first detection loop or the second detection loop into the current detection loop; the state display module is used for displaying the open circuit or short circuit state. The circuit connection state of the circuit to be detected is detected by the first detection loop and the second detection loop which are formed by the function selection module, the state display module, the network interface and the power supply module and are connected in series with the circuit to be detected, the circuit connection state of the circuit to be detected can be detected quickly, whether the connecting circuit of the circuit to be detected has problems or not is accurately judged, the workload of a circuit designer for checking and analyzing the circuit is reduced, and the detection efficiency of the circuit designer is improved.

Description

Network interface detector and network interface detection system

technical field

The embodiments of the present invention relate to the technical field of line detection, and in particular to a network interface detector and a network interface detection system.

Background technique

At present, many of the network interfaces used by computers are transferred through the LAN network cable interface. The design method of transferring the LAN network cable is to facilitate the layout of the network interface, so that the network interface is installed in a location that is convenient for application. However, the design method of LAN network cable transfer will lead to complicated lines, problems such as pressure lines and unplugged interfaces, which will eventually cause the function of the network interface to fail and communication cannot be connected. In addition, due to the variety and clutter of circuits, it is time-consuming and labor-intensive for designers to check and analyze circuit problems, and the efficiency of circuit inspection is low.

Contents of the invention

Embodiments of the present invention provide a network interface detector and a network interface detection system, which improve the detection efficiency of a circuit to be detected.

An embodiment of the present invention provides a network interface detector, which includes a function selection module, a status display module, a network interface, and a power supply module;

The power module includes a first power terminal and a second power terminal;

The network interface includes at least a first group of interfaces, a second group of interfaces and a ground terminal;

The first power terminal of the power module, the status display module, the first group of network interfaces, the circuit to be detected, the second group of network interfaces, the function selection module, and the second power terminal of the power module are connected in series to form a first detection circuit Used to detect whether there is an open circuit in the circuit to be detected;

The first power terminal of the power module, the status display module, the first group of interfaces of the network interface, the circuit to be detected, the ground terminal of the network interface, the function selection module, and the second power terminal of the power module are sequentially connected in series to form a second detection circuit for Detect whether there is a short circuit in the circuit to be detected;

The function selection module is used to switch the first detection loop or the second detection loop as the current detection loop;

The status display module is used to display the open circuit or short circuit status.

Optionally, the function selection module includes a first detection gear and a second detection gear;

The first power terminal of the power module, the status display module, the first group of interfaces of the network interface, the circuit to be detected, the second group of interfaces of the network interface, the first detection gear, and the second power terminal of the power module are sequentially connected in series to form a first The detection circuit is used to detect whether there is an open circuit in the circuit to be detected;

The first power terminal of the power module, the status display module, the first group of interfaces of the network interface, the circuit to be detected, the ground terminal of the network interface, the second detection gear, and the second power terminal of the power module are sequentially connected in series to form a second detection circuit It is used to detect whether there is a short circuit in the circuit to be detected.

Optionally, the function selection module includes a single pole double throw switch;

The fixed end of the SPDT switch is used as the first end of the first detection gear and the first end of the second detection gear; the first end of the SPDT switch is used as the second end of the first detection gear; the second end of the SPDT switch end as the second end of the second detection gear.

Optionally, the first group of interfaces of the network interface includes multiple pairs of input interfaces, and the second group of interfaces of the network interface includes multiple pairs of output interfaces; the status display module includes a plurality of output terminals;

The logarithms of the input interface of the network interface and the output interface of the network interface are consistent; each output terminal of the status display module is connected with a pair of input interfaces of the network interface, and each pair of output interfaces of the network interface is connected with the first detection gear of the first detection gear. end connection.

Optionally, the status display module includes a plurality of status sub-modules;

The input terminal of the status display module is connected to the first power supply terminal of the power supply module, and the output terminal of the status display module is connected to the first group of interfaces of the network interface;

The first terminals of the multiple status sub-modules are connected and used as input terminals of the status display module, and the second terminals of the status sub-modules are all used as output terminals of the status display module.

Optionally, the status sub-module includes a light emitting diode;

The first pole of the light emitting diode serves as the first end of the status sub-module, and the second pole of the light emitting diode serves as the second end of the status sub-module.

Optionally, the network interface detector also includes a protection module;

The first end of the protection module is connected to the first power supply end of the power module, the second end of the protection module is connected to the status display module, and the protection module is used to protect the status display module.

Optionally, the protection module includes a resistor;

The first terminal of the resistor serves as the first terminal of the protection module, and the second terminal of the resistor serves as the second terminal of the protection module.

Optionally, the network interface includes a network interface header.

In the second aspect, the embodiment of the present invention also provides a network interface detection system, which includes a network interface detector according to any one of the first aspect, an external network interface, a signal transfer interface, and a multi-channel isolation coupler;

The network interface detector, the external network interface, the signal transfer interface and the multi-channel isolation coupler are connected in series; the network interface detector is used to detect the connection line between the external network interface, the signal transfer interface and the multi-channel isolation coupler.

This scheme detects the line connection status of the circuit to be detected through the function selection module, status display module, network interface, and the first detection loop and the second detection loop composed of the power module and the circuit to be detected in series, and can quickly detect the line of the circuit to be detected The connection status can accurately determine whether there is a problem with the connection line of the circuit to be tested, reduce the workload of the line designer to check and analyze the line, and improve the detection efficiency of the line designer.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description Although it is some specific embodiments of the present invention, for those skilled in the art, the basic concepts of device structures, driving methods and manufacturing methods disclosed and suggested by various embodiments of the present invention can be expanded and extended to Undoubtedly, other structures and drawings should fall within the scope of the claims of the present invention.

FIG. 1 is a schematic structural diagram of a network interface detector provided by an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of another network interface detector provided by an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of another network interface detector provided by an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of another network interface detector provided by an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of another network interface detector provided by an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of another network interface detector provided by an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of another network interface detector provided by an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of another network interface detector provided by an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a network interface detection system provided by an embodiment of the present invention.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

An embodiment of the present invention provides a network interface detector, and FIG. 1 is a schematic structural diagram of a network interface detector provided by an embodiment of the present invention. As shown in Figure 1, the network interface detector includes a function selection module 110, a status display module 120, a network interface 130 and a power module 140; the power module 140 includes a first power supply terminal and a second power supply terminal; the network interface 130 includes at least the second A group of interfaces A-A', a second group of interfaces BB' and a ground terminal C; the first power supply terminal of the power supply module 140, the status display module 120, the first group of interfaces A-A' of the network interface 130, to be detected The circuit 150, the second group of interfaces BB' of the network interface 130, the function selection module 110, and the second power supply end of the power module 140 are sequentially connected in series to form a first detection loop for detecting whether the circuit 150 to be detected has an open circuit; the power module 140 The first power terminal of the state display module 120, the first group of interfaces A-A' of the network interface 130, the circuit to be detected 150, the ground terminal C of the network interface 130, the function selection module 110, and the second power supply terminal of the power module 140 The second detection circuit is sequentially connected in series to detect whether there is a short circuit in the circuit 150 to be detected; the function selection module 110 is used to switch the first detection circuit or the second detection circuit as the current detection circuit; the status display module 120 is used to display the open circuit or short circuit state .

Wherein, the network interface detector is used to detect the connection state of the circuit 150 to be detected, and can quickly determine whether there is a problem with the connection circuit of the circuit 150 to be detected. Specifically, the network interface detector mainly includes four parts: a function selection module 110 , a status display module 120 , a network interface 130 and a power supply module 140 . The network interface detector is connected to the circuit 150 to be detected, that is, the function selection module 110, the status display module 120, the network interface 130, and the power supply module 140 are connected to the circuit 150 to be detected, and the power supply module 140 can provide electric energy for the entire connection circuit, that is, A power detection signal is provided to the circuit 150 to be detected. The network interface 130 has a plurality of different connection ports respectively: the first group interface A-A' (the first group interface A-A' internal short circuit connection) and the second group interface BB' (the second group interface B- B'internal short-circuit connection) and ground C. The function selection module 110 has three different connection ports respectively a first terminal N, a second terminal P and a third terminal Q. Detecting the circuit to be detected 150 can select the port connecting the second power supply terminal of the power supply module 140 and the network interface 130 by adjusting the function selection module 110 , so as to realize the switching of different detection circuits and detect the line connection status of the circuit to be detected 150 . Exemplarily, the first end N of the function selection module 110 is connected to the second power supply end of the power supply module 140, the second end P of the function selection module 140 is connected to the second group interface BB' of the network interface 130, and the function selection The third terminal Q of the module 110 is connected to the ground terminal C of the network interface 130 . When the first end N of the function selection module 110 is connected to the second end P, the second power supply end of the power supply module 140 can be selected to be connected to the second group interface BB' of the network interface 130; when the first end of the function selection module 110 The terminal N is connected to the third terminal Q, and the second power supply terminal of the strobe power supply module 140 is connected to the ground terminal C of the network interface 130 . The status display module 120 can display the detection result of the circuit 150 to be detected; the network interface 130 is a line transfer interface connected with the circuit 150 to be detected.

Exemplarily, the detection loop connecting the network interface detector to the circuit to be detected 150 includes a first detection loop and a second detection loop. Wherein, the first detection loop is used to detect whether there is an open circuit in the circuit 150 to be detected. The specific connection mode of the first detection loop is: the first power terminal of the power module 140, the status display module 120, the first group of interfaces AA' of the network interface 130, the signal input terminal X of the circuit to be detected 150, the circuit to be detected The signal output terminal Y of 150, the second group interface BB' of the network interface 130, the second terminal P of the function selection module 110, the first terminal N of the function selection module 110, and the second power supply terminal of the power supply module 140 are connected in series in sequence connect. The second detection loop is used to detect whether there is a short circuit in the circuit 150 to be detected. The specific connection mode of the second detection circuit is: the first power terminal of the power module 140, the status display module 120, the first group of interfaces AA' of the network interface 130, the signal input terminal X of the circuit to be detected 150, the circuit to be detected The fixed potential terminal Z of the 150, the ground terminal C of the network interface 130, the third terminal Q of the function selection module 110, the first terminal N of the function selection module 110, and the second power supply terminal of the power supply module 140 are sequentially connected in series.

The specific detection method is: 1) When detecting whether there is an open circuit in the circuit 150 to be detected, the first terminal N of the function selection module 110 is electrically connected to the second terminal P at this time, that is, the function selection module 110 is used to switch to the first terminal P. The detection loop gates the second power terminal of the power module 140 and the second group of interfaces BB′ of the network interface 130 . If the state display module 120 responds (for example: the state display module 120 can be a light emitting diode, and the light is on to indicate that the state display module 120 responds), it means that the first detection loop can be turned on, and the circuit to be detected 150 does not have an open circuit problem; The state display module 120 does not make any response (for example: the state display module 120 can be a light emitting diode, and if the light is not on, it means that the state display module 120 has not made any response), indicating that the first detection circuit cannot be turned on, and the circuit to be detected 150 has an open circuit problem. 2) When detecting whether there is a short circuit in the circuit 150 to be detected, the first terminal N of the function selection module 110 is connected to the third terminal Q at this time, that is, the function selection module 110 is used to switch to the second detection circuit and gate the power supply module The second power terminal 140 is connected to the ground terminal C of the network interface 130 . If the state display module 120 responds (for example: the state display module 120 can be a light-emitting diode, and the light is on to indicate that the state display module 120 responds), it means that the second detection loop can be turned on, and there is a short circuit problem in the circuit to be detected 150; The status display module 120 does not make any response (for example, the status display module 120 can be a light emitting diode, and if the light is off, it means that the status display module 120 has not made any response), indicating that the second detection circuit cannot be turned on, and the circuit to be detected 150 does not have a short circuit problem.

In summary, this solution detects the line connection status of the circuit to be detected 150 through the first detection loop and the second detection loop formed by the function selection module 110, the status display module 120, the network interface 130, the power supply module 140 and the circuit to be detected in series 150, The circuit connection status of the circuit to be detected 150 can be quickly detected, and whether there is a problem with the connection circuit of the circuit to be detected 150 can be accurately judged, reducing the workload of the circuit designer for checking and analyzing the circuit, and improving the detection efficiency of the circuit designer.

FIG. 2 is a schematic structural diagram of another network interface detector provided by an embodiment of the present invention. As shown in Figure 2, the function selection module 110 includes a first detection gear 111 and a second detection gear 112; the first power terminal of the power supply module 140, the status display module 120, the first group of interfaces A-A of the network interface 130 ', the circuit to be detected 150, the second group of interfaces BB' of the network interface 130, the first detection gear 111, and the second power supply terminal of the power module 140 are sequentially connected in series to form a first detection circuit for detecting whether the circuit to be detected 150 is There is an open circuit; the first power terminal of the power module 140, the status display module 120, the first group of interfaces AA' of the network interface 130, the circuit to be detected 150, the ground terminal C of the network interface 130, the second detection gear 112, The second power terminals of the power module 140 are serially connected in series to form a second detection circuit for detecting whether there is a short circuit in the circuit 150 to be detected.

Specifically, the function selection module 110 has two different detection gears, such as the first detection gear 111 and the second detection gear 112. Selecting the first detection gear 111 can gate the second power terminal of the power module 140 and the network For the second group of interfaces BB' of the interface 130, selecting the second detection gear 112 can select the second power terminal of the power module 140 and the ground terminal C of the network interface 130 (it should be noted that the first detection gear cannot be selected at the same time bit 111 and the second detection gear 112.). Wherein, the first end of the first detection gear 111 is used as the first end N of the function selection module 110, that is, the first end of the first detection gear 111 is connected with the second power supply end of the power supply module 140; the first detection gear The second end of the bit 111 serves as the second end P of the function selection module 110 , that is, the second end of the first detection gear 111 is connected to the second group interface BB′ of the network interface 130 . The first end of the second detection gear 112 is connected with the first end of the first detection gear 111, that is, the first end of the second detection gear 112 is also connected with the second power terminal of the power supply module 140; the second detection The second terminal of the gear position 112 serves as the third terminal Q of the function selection module 110 , that is, the second terminal of the second detection gear position 112 is connected to the fixed potential terminal C of the network interface 130 .

Exemplarily, the first detection circuit is: the first power terminal of the power module 140, the status display module 120, the first group interface AA' of the network interface 130, the signal input terminal X of the circuit to be detected 150, the circuit to be detected The signal output terminal Y of 150, the second group interface BB' of the network interface 130, the first detection gear position 111, and the second power supply terminal of the power supply module 140 are sequentially connected in series; when detecting whether there is an open circuit in the circuit 150 to be detected, Select the first detection gear 111 , that is, gate the second power terminal of the power module 140 and the second group of interfaces BB′ of the network interface 130 . If the status display module 120 responds, it means that the first detection loop can be turned on, and the circuit to be detected 150 has no open circuit problem; if the status display module 120 does not make any response, it means that the first detection loop cannot be turned on, and the circuit to be detected 150 has an open circuit problem. The second detection circuit is: the first power terminal of the power module 140, the status display module 120, the first group of interfaces AA' of the network interface 130, the signal input terminal X of the circuit to be detected 150, and the fixed potential of the circuit to be detected 150 The terminal Z, the ground terminal C of the network interface 130 , the second detection gear 112 , and the second power terminal of the power module 140 are sequentially connected in series. When detecting whether there is a short circuit in the circuit 150 to be detected, the second detection gear 112 is selected, that is, the second power terminal of the power module 140 and the ground terminal C of the network interface 130 are selected. If the status display module 120 responds, it means that the second detection loop can be turned on, and there is a short circuit problem in the circuit to be detected 150; if the status display module 120 does not respond, it means that the second detection loop cannot be turned on, and the circuit to be detected 150 does not have a short circuit problem.

FIG. 3 is a schematic structural diagram of another network interface detector provided by an embodiment of the present invention. As shown in Figure 3, the function selection module 110 includes a SPDT switch; the fixed terminal N' of the SPDT switch is used as the first end of the first detection gear and the second detection gear; the first end of the SPDT switch P' is used as the second end of the first detection gear; the second end Q' of the single pole double throw switch is used as the second end of the second detection gear.

Wherein, the function selection module 110 may be a single pole double throw switch. Specifically, the SPDT switch includes three ports: a fixed terminal N', a first terminal P' and a second terminal Q'. The fixed end N' of the single-pole double-throw switch is used as the first end of the first detection gear and the second detection gear, that is, the first end N of the function selection module 110 is connected to the second power supply end of the power supply module 140; The first end P' of the double-throw switch is used as the second end of the first detection gear, that is, the second end P as the function selection module 110 is connected to the second group interface BB' of the network interface 130; The second end Q′ of the switch is used as the second end of the second detection gear, that is, the third end Q of the function selection module 110 is connected to the fixed potential end C of the network interface 130 . Exemplarily, closing the switch between the fixed terminal N' and the first terminal P' of the SPDT switch can detect whether there is an open circuit problem in the circuit 150 to be detected. Closing the switch between the fixed end N' and the second end Q' of the SPDT switch can detect whether there is a short circuit in the circuit 150 to be detected.

It should be noted that: when the function selection module 110 is a single-pole double-throw switch, the detection process of the circuit 150 to be detected is consistent with the above-mentioned embodiment, and will not be repeated here.

FIG. 4 is a schematic structural diagram of another network interface detector provided by an embodiment of the present invention. As shown in Figure 4, the first group interface of network interface 130 comprises many pairs of input interfaces, the second group interface of network interface 130 comprises many pairs of output interfaces; Status display module 120 comprises a plurality of output ends; The input interface of network interface 130 Keep consistent with the logarithm of the output interface of the network interface 130; each output port of the status display module 120 is connected with a pair of input interfaces of the network interface 130, and each pair of output interfaces of the network interface 130 is connected with the first end of the first detection gear connect.

Wherein, the first group of interfaces of the network interface 130 includes multiple pairs of input interfaces, and each pair of input interfaces is short-circuited internally, such as input interfaces A1-A1', input interfaces A2-A2', input interfaces A3-A3' and input interfaces A4- A4' are all internally short-circuited. The second group of interfaces of the network interface 130 includes multiple pairs of output interfaces, and each pair of output interfaces is internally short-circuited, such as output interfaces B1-B1', output interfaces B2-B2', output interfaces B3-B3', and output interfaces B4-B4' Both are internally short-circuited. The status display module 120 includes multiple output terminals. For example, the output terminals of the status display module 120 include: an output terminal M1 , an output terminal M2 , an output terminal M3 and an output terminal M4 .

The input interface of each pair of network interface 130 and the output interface of each network interface 130 are set correspondingly, and the detection signal transmitted by the input interface of network interface 130 is transmitted by the network interface 130 corresponding to the input interface of network interface 130 after being transmitted by the circuit 150 to be detected. Output interface output, for example, the input interface A1-A1' of the network interface 130 is set correspondingly to the output interface B1-B1' of the network interface 130, the input interface A2-A2' of the network interface 130 is connected to the output interface B2-B2' of the network interface 130 Corresponding settings, the input interface A3-A3' of the network interface 130 is set correspondingly to the output interface B3-B3' of the network interface 130, and the input interface A4-A4' of the network interface 130 is set correspondingly to the output interface B4-B4' of the network interface 130 . The circuit to be detected 150 includes multiple signal input terminals and multiple signal output terminals. For example, the signal input terminal of the circuit to be detected 150 includes: signal input terminal X1, signal input terminal X2, signal input terminal X3 and signal input terminal X4. The signal output terminals of the detection circuit 150 include: a signal output terminal Y1 , a signal output terminal Y2 , a signal output terminal Y3 and a signal output terminal Y4 . The signal input end of each circuit to be detected 150 and the signal output end of each circuit to be detected 150 are correspondingly arranged, and the detection signal input from the signal input end of the circuit to be detected 150 is provided by the signal input end corresponding to the circuit to be detected 150 to be detected. The signal output terminal of the circuit 150 outputs, for example, the signal input terminal X1 of the circuit to be detected 150 is set correspondingly to the signal output terminal Y1 of the circuit to be detected 150, and the signal input terminal X2 of the circuit to be detected 150 is corresponding to the signal output terminal Y2 of the circuit to be detected 150 Set, the signal input terminal X3 of the circuit to be detected 150 is set correspondingly to the signal output terminal Y3 of the circuit to be detected 150 , and the signal input terminal X4 of the circuit to be detected 150 is correspondingly set to the signal output terminal Y4 of the circuit to be detected 150 .

Specifically, each output terminal of the status display module 120 is connected to a pair of input interfaces of the network interface 130, and each pair of output interfaces of the network interface 130 is connected to the first end of the first detection gear. The input interface of each pair of network interfaces 130 is connected to the signal input terminal of a circuit to be detected 150 , and the signal output terminal of each circuit to be detected 150 is connected to the output interface of a pair of network interfaces 130 .

In addition, since the first group of interfaces of the network interface 130 includes multiple pairs of input interfaces, the second group of interfaces of the network interface 130 includes multiple pairs of output interfaces, and the status display module 120 includes a plurality of output terminals, and then the network interface 130 detector and the to-be-detected The circuit 150 can be connected to form four first detection loops or four second detection loops. Exemplarily, one of the first detection loops is: the first power terminal of the power module 140, the input terminal of the status display module 120, the output terminal M1 of the status display module 120, the input interface A1-A1' of the network interface 130, the circuit to be detected The signal input terminal X1 of 150, the signal output terminal Y1 of the circuit to be detected 150, the output interfaces B1-B1' of the network interface 130, the first detection gear 111 and the second power terminal of the power module 140 are sequentially connected in series. One of the second detection loops is: the first power supply terminal of the power supply module 140, the input terminal of the status display module 120, the output terminal M1 of the status display module 120, the input interface A1-A1' of the network interface 130, and the signal input of the circuit 150 to be detected The terminal X1 , the fixed potential terminal Z of the circuit to be detected 150 , the ground terminal C of the network interface 130 , the second detection gear, and the second power supply terminal of the power module 140 are sequentially connected in series.

It should be noted that: the above embodiment only exemplarily points out one first detection loop and one second detection loop, and the remaining first detection loops and second detection loops are connected according to the corresponding ports, which will not be illustrated one by one here.

FIG. 5 is a schematic structural diagram of another network interface detector provided by an embodiment of the present invention. As shown in Figure 5, the state display module 120 includes a plurality of state sub-modules; the input end of the state display module 120 is connected with the first power supply end of the power supply module 140, and the output end of the state display module 120 is connected with the first group of the network interface 130 Interface connection; the first terminals of the multiple status sub-modules are connected and used as the input terminals of the status display module 120 , and the second terminals of the status sub-modules are all used as the output terminals of the status display module 120 .

Specifically, the status display module 120 includes a first status sub-module 121 , a second status sub-module 122 , a third status sub-module 123 and a fourth status sub-module 124 . Specifically, the first end of the first state submodule 121, the second state submodule 122, the third state submodule 123 and the fourth state submodule 124 are connected together as the input end of the state display module 120, that is, the first The first terminals of the status sub-module 121 , the second status sub-module 122 , the third status sub-module 123 and the fourth status sub-module 124 are all connected to the first power terminal of the power supply module 140 . The second terminal of the first status sub-module 121 is connected to the input interface A1-A1' of the network interface 130 as the output terminal M1 of the status display module 120; the second terminal of the second status sub-module 122 is used as the output terminal of the status display module 120 M2 is connected with the input interface A2-A2' of the network interface 130; the second end of the third state submodule 123 is connected with the input interface A3-A3' of the network interface 130 as the output terminal M3 of the state display module 120; the fourth state submodule The second terminal of the module 124 is connected to the input interface A4 - A4 ′ of the network interface 130 as the output terminal M4 of the status display module 120 .

FIG. 6 is a schematic structural diagram of another network interface detector provided by an embodiment of the present invention. As shown in FIG. 6 , the state sub-module includes a light emitting diode; the first pole of the light emitting diode is used as the first end of the state sub-module, and the second pole of the light-emitting diode is used as the second end of the state sub-module.

Wherein, the state sub-module includes a light emitting diode, for example, the first state sub-module 121 includes a light-emitting diode D1, the second state sub-module 122 includes a light-emitting diode D2, the third state sub-module 123 includes a light-emitting diode D3 and the fourth state sub-module 124 includes LED D4. The first pole of the light-emitting diode is connected to the first power supply terminal of the power module 140 as the first terminal of the status sub-module, and the second pole of the light-emitting diode is connected to the input interface of the network interface 130 as the second terminal of the status sub-module. Specifically, the first poles of the light emitting diode D1, the light emitting diode D2, the light emitting diode D3 and the light emitting diode D4 are connected to the first power terminal of the power supply module 140, and the second pole of the light emitting diode D1 is used as the output terminal M1 of the status display module 120, The second pole of the light emitting diode D2 is used as the output terminal M2 of the status display module 120, the second pole of the light emitting diode D3 is used as the output terminal M3 of the status display module 120, and the second pole of the light emitting diode D4 is used as the output terminal M4 of the status display module 120 .

Continuing to refer to FIG. 6 , each LED is connected in series to each first detection loop or each second detection loop. Exemplarily, the first detection circuit of the series LED D1 is: the first power terminal of the power module 140, the LED D1, the input interface A1-A1' of the network interface 130, the signal input terminal X1 of the circuit to be detected 150, The signal output terminal Y1 of the circuit to be detected 150 , the output interfaces B1 - B1 ′ of the network interface 130 , the first detection position and the second power terminal of the power module 140 are connected in series in sequence. If the light-emitting diode D1 emits light, the circuit to be detected 150 does not have an open circuit problem; if the light-emitting diode D1 does not emit light, the circuit to be detected 150 has an open circuit problem. The second detection loop of the series LED D1 is: the first power terminal of the power supply module 140, the LED D1, the input interface A1-A1' of the network interface 130, the signal input terminal X1 of the circuit to be detected 150, the signal input terminal of the circuit to be detected 150 The fixed potential terminal Z, the ground terminal C of the network interface 130 , the second detection gear, and the second power terminal of the power module 140 are sequentially connected in series. If the light-emitting diode D1 emits light, the circuit 150 to be detected is short-circuited; if the light-emitting diode D1 is not lit, the circuit 150 to be detected does not have a short-circuit problem.

It should be noted that: the above-mentioned embodiment only exemplarily points out a first detection circuit and a second detection circuit, and the light-emitting diode D2, the light-emitting diode D3 and the light-emitting diode D4 constitute the first detection circuit or the second detection circuit according to the connection of the corresponding ports. Loop, no more examples here.

FIG. 7 is a schematic structural diagram of another network interface detector provided by an embodiment of the present invention. As shown in Figure 7, the network interface detector also includes a protection module 160; the first end of the protection module 160 is connected with the first power supply end of the power supply module 140, and the second end of the protection module 160 is connected with the status display module 120, and the protection module 160 is used for the protection status display module 120 .

Wherein, the network interface detector further includes a protection module 160 . Specifically, the protection module 160 is connected in series between the first power supply terminal of the power supply module 140 and the input terminal of the status display module 120, which can play a role of current limiting and prevent the status display module 120 from being burned by the excessive current output by the power supply module 140. In this way, the function of protecting the status display module 120 is played.

FIG. 8 is a schematic structural diagram of another network interface detector provided by an embodiment of the present invention. As shown in FIG. 8 , the protection module 160 includes a resistor 161 ; the first terminal of the resistor 161 serves as the first terminal of the protection module 160 , and the second terminal of the resistor 161 serves as the second terminal of the protection module 160 .

Wherein, the protection module 160 includes a resistor 161, and the resistor 161 is connected between the first end of the power module 140 and the input end of the status display module 120, that is, the first end of the resistor 161 serves as the first end of the protection module 160 and the first end of the power module 140. A power terminal is connected, and the second terminal of the resistor 161 is connected to the input terminal of the status display module 120 as the second terminal of the protection module 160 .

Optionally, the network interface includes a network interface header.

Wherein, the network interface adopts a network interface male header style, which can quickly realize the connection between the network interface and the circuit to be tested.

FIG. 9 is a schematic structural diagram of a network interface detection system provided by an embodiment of the present invention. As shown in Figure 9, the network interface detection system includes any one of the network interface detectors in the foregoing embodiments, an external network interface 151, a signal transfer interface 152, and a multi-channel isolation coupler 153; the network interface detector, the external network interface 151 , the signal transfer interface 152 and the multi-channel isolation coupler 153 are connected in series; the network interface detector is used to detect the connection line between the external network interface 151 , the signal transfer interface 152 and the multi-channel isolation coupler 153 .

Wherein, the network interface detection system is composed of four parts: a network interface detector, an external network interface 151 , a signal transfer interface 152 and a multi-channel isolation coupler 153 . The network interface detector is used to detect the connection lines between the external network interface 151 , the signal transfer interface 152 and the multi-channel isolation coupler 153 . Specifically, the network interface detector, the external network interface 151, the signal transfer interface 152, and the multi-channel isolation coupler 153 are connected in series; The pin RX1+ is connected, the output interface B1-B1' of the network interface 130 is connected with the pin RX1- of the external network interface 151; the input interface A2-A2' of the network interface 130 is connected with the pin TX1+ of the external network interface 151, the network interface 130 The output interface B2-B2' of the external network interface 151 is connected to the pin TX1-; the input interface A3-A3' of the network interface 130 is connected to the pin RX0+ of the external network interface 151, and the output interface B3-B3' of the network interface 130 It is connected with the pin RX0- of the external network interface 151; the input interface A4-A4' of the network interface 130 is connected with the pin TX0+ of the external network interface 151, and the output interface B4-B4' of the network interface 130 is connected with the pin of the external network interface 151 Pin TX0- connection.

It should be noted that: the pin RX1+ of the external network interface 151 is connected to the pin 1+ in an internal short circuit, the pin RX1- of the external network interface 151 is connected to the pin 1- in an internal short circuit, and the pin TX1+ of the external network interface 151 and the pin Pin 2+ internal short-circuit connection, pin TX1- and pin 2- of the external network interface 151 are internally short-circuit connected, pin RX0+ of the external network interface 151 and pin 3+ are internally short-circuit connected, pin RX0 of the external network interface 151 - and pin 3- are internally short-circuited, pin TX0+ of the external network interface 151 is internally short-circuited to pin 4+, and pin TX0- of the external network interface 151 is internally short-circuited to pin 4-. The pin 11+ and pin 111+ of the signal transfer interface 152 are internally short-circuited, the pin 11- and pin 111- of the signal transfer interface 152 are connected in an internal short circuit, and the pin 22+ and pin 222+ of the signal transfer interface 152 Internal short-circuit connection, pin 22- and pin 222- of signal transfer interface 152 are internally short-circuit connected, pin 33+ and pin 333+ of signal transfer interface 152 are internally short-circuit connected, pins 33- and Pin 333-is connected to an internal short circuit, pin 44+ and pin 444+ of the signal transfer interface 152 are connected to an internal short circuit, and pin 44- and pin 444- of the signal transfer interface 152 are connected to an internal short circuit. The pin 1111+ of the multi-way isolation coupler 153 communicates with the pin 1111- through three coils, the pin 2222+ of the multi-way isolation coupler 153 communicates with the pin 2222- through three coils, and the multi-way isolation coupler 153 The pin 3333+ of the multi-channel isolation coupler 153 is connected with the pin 3333- through three coils, and the pin 4444+ of the multi-way isolation coupler 153 is connected with the pin 4444- through three coils.

The connection relationship between the external network interface 151, the signal transfer interface 152 and the multi-channel isolation coupler 153 is: the pin 1+ of the external network interface 151 is connected to the pin 11+ of the signal transfer interface 152, and the pin 1+ of the external network interface 151 -connect with the pin 11- of the signal transfer interface 152, the pin 2+ of the external network interface 151 is connected with the pin 22+ of the signal transfer interface 152, the pin 2- of the external network interface 151 is connected with the lead of the signal transfer interface 152 Pin 22-connection, pin 3+ of external network interface 151 is connected with pin 33+ of signal transfer interface 152, pin 3- of external network interface 151 is connected with pin 33- of signal transfer interface 152, external network interface The pin 4+ of 151 is connected to the pin 44+ of the signal transfer interface 152 , and the pin 4 − of the external network interface 151 is connected to the pin 44 − of the signal transfer interface 152 . The pin 111+ of the signal transfer interface 152 is connected to the pin 1111+ of the multi-channel isolation coupler 153, the pin 111- of the signal transfer interface 152 is connected to the pin 1111- of the multi-channel isolation coupler 153, and the signal transfer interface 152 The pin 222+ of the multi-channel isolation coupler 153 is connected to the pin 2222+ of the multi-channel isolation coupler 153, the pin 222- of the signal transfer interface 152 is connected to the pin 2222- of the multi-channel isolation coupler 153, and the pin 333 of the signal transfer interface 152 + is connected to the pin 3333+ of the multi-channel isolation coupler 153, the pin 333- of the signal transfer interface 152 is connected to the pin 3333- of the multi-channel isolation coupler 153, the pin 444+ of the signal transfer interface 152 is connected to the multi-channel The pin 4444+ of the isolation coupler 153 is connected, and the pin 444 − of the signal transfer interface 152 is connected to the pin 4444 − of the multi-channel isolation coupler 153 .

According to the above connection mode, when detecting whether there is an open circuit in the circuit 150 to be detected, the SPDT switch closes the switch between the fixed terminal N' and the first terminal P'. At this time, four first detection loops are formed, for example, one of the first detection loops is: the first power terminal of the power supply module 140, the protection module 160, the light emitting diode D1, the first group of interfaces A1-A1' of the network interface 130, the external The pin RX1+ of the network interface 151, the pin 1+ of the external network interface 151, the pin 11+ of the signal transfer interface 152, the pin 111+ of the signal transfer interface 152, the pin 1111+ of the multi-channel isolation coupler 153, Pin 1111- of multi-channel isolation coupler 153, pin 111- of signal transfer interface 152, pin 11- of signal transfer interface 152, pin 1- of external network interface 151, pin RX1 of external network interface 151 -, the output interface B1-B1' of the network interface 130, the first end P' of the SPDT switch, the fixed end N' of the SPDT switch, and the second power end of the power module 140 are sequentially connected in series. If the light-emitting diode D1 emits light, the circuit to be detected 150 does not have an open circuit problem; if the light-emitting diode D1 does not emit light, the circuit to be detected 150 has an open circuit problem. (Note: the above only exemplarily shows a first detection circuit, other first detection circuits can be known with reference to FIG. switch between the first terminal Q'. At this time, four first detection loops are formed, and the first detection loop is: the first power terminal of the power supply module 140, the light-emitting diode D1, the first group of interfaces of the network interface 130, the signal input end of the circuit to be detected 150, and the circuit to be detected The fixed potential terminal Z of 150 , the ground terminal C of the network interface 130 , the second detection gear, and the second power terminal of the power module 140 are connected in series in sequence. If the light-emitting diode D1 emits light, the circuit 150 to be detected is short-circuited; if the light-emitting diode D1 is not lit, the circuit 150 to be detected does not have a short-circuit problem. Exemplarily, assuming that the connection line between the pin 111+ of the signal transfer interface 152 and the pin 1111+ of the multi-way isolation coupler 153 is short-circuited and electrically connected to the fixed potential terminal Z of the circuit to be detected 150, the formed The second detection loop is specifically: the first power terminal of the power module 140, the protection module 160, the light emitting diode D1, the input interface A1-A1' of the network interface 130, the pin RX1+ of the external network interface 151, and the pin RX1+ of the external network interface 151. Pin 1+, pin 11+ of signal transfer interface 152, pin 111+ of signal transfer interface 152, fixed potential terminal Z of circuit to be detected 150, ground terminal C of network interface 130, second detection gear, power module The second power terminals of 140 are sequentially connected in series, and at this time, the light-emitting diode D1 lights up to indicate that the circuit 150 to be detected is short-circuited.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (10)

1. a network interface detector, is characterized in that, comprises function selection module, status display module, network interface and power supply module; The power module includes a first power terminal and a second power terminal; The network interface includes at least a first group of interfaces and a second group of interfaces and a ground terminal; The first power terminal of the power supply module, the status display module, the first group of interfaces of the network interface, the circuit to be detected, the second group of interfaces of the network interface, the function selection module, and the power supply module The second power terminal of the second power supply is sequentially connected in series to form a first detection circuit for detecting whether the circuit to be detected is disconnected; The first power terminal of the power module, the status display module, the first group of interfaces of the network interface, the circuit to be detected, the ground terminal of the network interface, the function selection module, and the first group of interfaces of the power module The two power supply terminals are serially connected in sequence to form a second detection circuit for detecting whether there is a short circuit in the circuit to be detected; The function selection module is used to switch the first detection loop or the second detection loop as the current detection loop; The status display module is used to display the open circuit or short circuit status. 2. The network interface detector according to claim 1, wherein the function selection module includes a first detection gear and a second detection gear; The first power terminal of the power module, the status display module, the first group of interfaces of the network interface, the circuit to be detected, the second group of interfaces of the network interface, the first detection gear, the The second power terminal of the power module is serially connected in series to form a first detection circuit for detecting whether the circuit to be detected is disconnected; The first power terminal of the power module, the status display module, the first group of interfaces of the network interface, the circuit to be detected, the ground terminal of the network interface, the second detection position, the power module The second power supply terminals are connected in series in turn to form a second detection circuit for detecting whether there is a short circuit in the circuit to be detected. 3. The network interface detector according to claim 2, wherein the function selection module comprises a single-pole double-throw switch; The fixed end of the single pole double throw switch is used as the first end of the first detection gear and the first end of the second detection gear; the first end of the single pole double throw switch is used as the first end of the first detection gear Two terminals; the second terminal of the single pole double throw switch is used as the second terminal of the second detection gear. 4. The network interface detector according to claim 3, wherein the first group of interfaces of the network interfaces comprises multiple pairs of input interfaces, and the second group of interfaces of the network interfaces comprises multiple pairs of output interfaces; The status display module includes multiple output terminals; The input interface of the network interface is consistent with the logarithm of the output interface of the network interface; each output port of the state display module is connected to a pair of input interfaces of the network interface, and each pair of output ports of the network interface The interface is connected with the first end of the first detection gear. 5. The network interface detector according to claim 4, wherein the status display module includes a plurality of status submodules; The input terminal of the status display module is connected to the first power supply terminal of the power supply module, and the output terminal of the status display module is connected to the first group of interfaces of the network interface; The first terminals of the plurality of status sub-modules are connected and serve as input terminals of the status display module, and the second terminals of the status sub-modules are all used as output terminals of the status display module. 6. The network interface detector according to claim 5, wherein the status sub-module comprises a light emitting diode; The first pole of the light emitting diode serves as the first terminal of the status sub-module, and the second pole of the light emitting diode serves as the second terminal of the status sub-module. 7. The network interface detector according to claim 1, further comprising a protection module; The first terminal of the protection module is connected to the first power supply terminal of the power supply module, the second terminal of the protection module is connected to the status display module, and the protection module is used to protect the status display module. 8. The network interface detector according to claim 7, wherein the protection module comprises a resistor; The first terminal of the resistor serves as the first terminal of the protection module, and the second terminal of the resistor serves as the second terminal of the protection module. 9. The network interface detector according to claim 4, wherein the network interface comprises a network interface header. 10. A network interface detection system, characterized in that, comprising the network interface detector according to any one of claims 1-7, an external network interface, a signal transfer interface, and a multi-channel isolation coupler; The network interface detector, the external network interface, the signal transfer interface and the multi-channel isolation coupler are connected in series; the network interface detector is used to detect the external network interface, the signal transfer interface and the The connection lines between the above-mentioned multi-way isolation couplers.

Images