Cable testing device and cable tester for line searching and aligning of flowing water lamp

Abstract

The utility model relates to the technical field of cable testing, and discloses a cable testing device and a cable tester for searching and aligning a cable through a flowing water lamp. A first data processing module in the host test circuit generates and issues target signals including a line alignment signal and a line hunting signal, and then a first line hunting and alignment module responds to the target signals in combination with a first water light module. A second line searching and aligning module in the auxiliary machine test circuit is combined with a second flowing water lamp module to respond to the target signal, and the flowing water lamp module is arranged, so that the lookup convenience of a line searching function and a line aligning function is improved; besides, the host test circuit is used for realizing line searching and alignment of a cable line sequence of a host end (near end), the auxiliary machine test circuit is used for realizing line searching and alignment of an auxiliary machine end (far end), and meanwhile, a display function of a water light is also integrated, so that the applicability and the practicability of the cable test device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable testing, in particular to a cable testing device and a cable tester for finding a matching line using a running light. Background Art

[0002] With the continuous development of communication technology, various types of communication cables are increasingly being used in network communications, data centers, and other applications. The data transmission and efficiency of communication cables depend on multiple parameters of the cable, of which cable length and wire sequence are the most fundamental. In the actual application of cables, accurately measuring these parameters is an inevitable technical issue. Currently, there are many methods for testing cable length, the more commonly used of which include direct measurement, resistance measurement, capacitance measurement, time domain reflectometry (TDR), and time domain transmission (TDT). However, the test equipment available on the market that can perform cable length measurement has relatively simple measurement functions and is often only capable of meeting the user's single cable testing needs. It is not suitable when the need to simultaneously measure cable parameters in multiple dimensions is required. Utility Model Content

[0003] The utility model provides a cable testing device for finding the right line with a running light, which can meet the testing requirements of multi-dimensional parameters of cables and improve the flexibility and convenience of parameter testing of cables.

[0004] In order to solve the above technical problems, the first aspect of the present invention discloses a cable testing device for finding a pair of lines with a running light. The cable testing device includes a main unit test circuit and a secondary unit test circuit. The main unit test circuit includes a first pair of lines finding module and a first data processing module and a first running light module connected to the first pair of lines finding module; the secondary unit test circuit includes an audio output module, a second pair of lines finding module, and a second data processing module and a second running light module connected to the second pair of lines finding module. The audio output module is connected to the second data processing module, wherein:

[0005] The first data processing module is configured to generate a line-finding signal for performing a line-finding operation and a line-aligning signal for performing a line-aligning operation;

[0006] The first pairing line finding module is used to transmit the line finding signal and the pairing line signal to the second pairing line finding module through the cable to be tested, and is also used to perform a first line sequence display control for the first running light module on the cable to be tested according to the pairing line signal;

[0007] The second line-finding module is configured to receive the line-finding signal and the line-matching signal, transmit the line-finding signal to the second data processing module, and perform a second line sequence display control on the second running light module for the cable under test according to the line-matching signal;

[0008] The second data processing module is configured to perform audio output control on the audio output module for the cable to be tested according to the line-finding signal.

[0009] As an optional implementation, in the first aspect of the present utility model, the first line-finding module includes a line-finding submodule, wherein:

[0010] The second end of the first data processing module is electrically connected to the first end of the line-finding submodule; the second end of the line-finding submodule is communicatively connected to the second end of the second line-finding module;

[0011] The line-finding sub-module is used to generate a transmission signal that matches the line-finding signal based on the line-finding signal transmitted by the first data processing module; and transmit the transmission signal to the second line-finding module through the cable to be tested, so as to trigger the second line-finding module to perform preset signal processing on the transmission signal, and the preset signal processing includes filtering processing and / or signal amplification processing.

[0012] As an optional implementation, in the first aspect of the present utility model, the line-finding submodule includes a line-finding transmitting unit and a line-finding transmitting port, wherein:

[0013] The second end of the first data processing module is electrically connected to the first end of the line-finding transmitting unit; the second end of the line-finding transmitting unit is electrically connected to the first end of the line-finding transmitting port;

[0014] The second end of the line-finding transmission port is communicatively connected to the third end of the cable to be tested; the fourth end of the cable to be tested is communicatively connected to the first end of the second line-finding module;

[0015] The line-finding transmission unit is used to perform unit adjustment to match the line-finding signal according to the line-finding signal transmitted by the first data processing module, generate a transmission signal that matches the line-finding signal, and transmit the transmission signal to the line-finding transmission port, so as to transmit the transmission signal through the cable to be tested to the second line-finding module through the line-finding transmission port.

[0016] As an optional implementation, in the first aspect of the present utility model, the first line search module further includes a line submodule, wherein:

[0017] The first end of the first data processing module is electrically connected to the first end of the line submodule; the second end of the line submodule is electrically connected to the first end of the cable to be tested; the third end of the line submodule is electrically connected to the first end of the first running light module;

[0018] The alignment sub-module is used to receive the alignment signal transmitted by the first data processing module, and perform an alignment operation on the host end of the cable to be tested according to the alignment signal, obtain a host-end alignment result for the host end of the cable to be tested, and send the host-end alignment result to the first running light module to trigger the first running light module to perform a first line sequence display operation according to the host-end alignment result.

[0019] As an optional implementation, in the first aspect of the present utility model, the second line search module includes a line search receiving submodule, wherein:

[0020] The second end of the line-finding transmitting port is communicatively connected to the third end of the cable to be tested; the fourth end of the cable to be tested is communicatively connected to the first end of the line-finding receiving submodule; the second end of the line-finding receiving submodule is electrically connected to the first end of the second data processing module;

[0021] The line search receiving submodule is used to receive the transmission signal sent by the line search transmitting port, perform preset signal processing corresponding to filtering processing and / or signal amplification processing on the transmission signal, and transmit the corresponding preset signal processing result to the second data processing module;

[0022] The second data processing module is configured to determine a signal amplitude corresponding to the preset signal processing result, generate an audio output signal matching the signal amplitude, and transmit the audio output signal to the audio output module so as to output a target audio signal matching the audio output signal through the audio output module;

[0023] The second data processing module is also used to generate a display control signal for the second running light module according to the preset signal processing result, and control the second running light module to perform a second line sequence display operation according to the display control signal, and the second line sequence display operation is used to indicate the signal strength corresponding to the transmitted signal.

[0024] As an optional implementation, in the first aspect of the present utility model, the line search receiving submodule includes a signal processing unit, a filtering unit, and a signal amplification unit, wherein:

[0025] The second end of the line-finding transmission port is communicatively connected to the third end of the cable to be tested; the fourth end of the cable to be tested is communicatively connected to the first end of the signal processing unit; the second end of the signal processing unit is electrically connected to the first end of the filtering unit and the first end of the signal amplifying unit respectively;

[0026] The second end of the filtering unit is used for grounding; the third end of the filtering unit is used for connecting to a power supply; the second end of the signal amplifying unit is used for grounding; the third end of the signal amplifying unit is electrically connected to the first end of the second data processing module;

[0027] The signal processing unit is configured to receive the transmission signal and transmit the transmission signal to the filtering unit;

[0028] The filtering unit is configured to perform filtering and frequency selection operations on the transmit signal, and transmit the corresponding filtered frequency-selected signal to the signal amplifying unit;

[0029] The signal amplification unit is used to perform a signal amplification operation on the filtered frequency-selected signal and feed back the corresponding signal amplification result to the second data processing module; the signal amplification operation includes at least two stages of signal amplification processing.

[0030] As an optional implementation, in the first aspect of the present utility model, the second pairing module further includes a secondary machine interaction port, wherein:

[0031] The first end of the auxiliary machine interaction port is used to be electrically connected to the second end of the cable to be tested; the second end of the auxiliary machine interaction port is electrically connected to the first end of the second running light module;

[0032] The alignment submodule is further configured to transmit the alignment signal to the secondary machine interaction port;

[0033] The auxiliary machine interaction port is used to perform the alignment operation on the auxiliary machine end of the cable to be tested according to the alignment signal, obtain the auxiliary machine end alignment result for the auxiliary machine end of the cable to be tested, and send the auxiliary machine end alignment result to the second running light module to trigger the second running light module to perform the second line sequence display operation according to the auxiliary machine end alignment result.

[0034] As an optional implementation, in the first aspect of the present utility model, the second pairing line finding module further includes an interface detection submodule, wherein;

[0035] The third end of the auxiliary machine interaction port is electrically connected to the first end of the interface detection submodule; the second end of the interface detection submodule is electrically connected to the second end of the second data processing module;

[0036] The interface detection submodule is configured to collect port operation data corresponding to the auxiliary machine interaction port, determine port connection information of the auxiliary machine interaction port based on the port operation data, and transmit the port connection information to the second data processing module; the port connection information includes first information or non-first information indicating that the auxiliary machine interaction port is connected to the line-finding transmission port via a cable;

[0037] The interface detection submodule is further configured to receive a port control instruction fed back by the second data processing module in response to the port connection information, and perform port control on the auxiliary machine interaction port according to the port control instruction, wherein the port control includes port start and stop control.

[0038] As an optional implementation, in the first aspect of the present utility model, the host test circuit further includes a length measurement module, wherein:

[0039] The first end of the length measuring module is used to be electrically connected to the first end of the measured line group; the second end of the length measuring module is electrically connected to the third end of the first data processing module;

[0040] The first data processing module is further configured to transmit the generated length measurement trigger signal to the length measurement module and simultaneously send a preset pulse wave to the measured line group;

[0041] The length measurement module is configured to perform a measurement operation on the measured line group for the preset pulse wave, and write the corresponding measurement result into a result register of the length measurement module;

[0042] The first data processing module is further configured to read the measurement results, perform calculations based on a preset algorithm on the measurement results, and display the corresponding calculation results on a display module externally connected to the first data processing module.

[0043] A second aspect of the present invention discloses a cable tester, which includes a device body and a cable test device for finding the right line with a running light as disclosed in any one of the first aspects.

[0044] The implementation of this utility model has the following beneficial effects:

[0045] The present invention provides a cable testing device for finding a pair of lines with a running light. The cable testing device includes a main unit test circuit and an auxiliary unit test circuit. The main unit test circuit includes a first line finding module and a first data processing module and a first running light module connected to the first line finding module; the auxiliary unit test circuit includes an audio output module, a second line finding module and a second data processing module and a second running light module connected to the second line finding module, and the audio output module is connected to the second data processing module, wherein: the first data processing module is used to generate a line finding signal for performing a line finding operation and a line matching signal for performing a line matching operation; the first line finding module is used to transmit the line finding signal and the line matching signal to the second line finding module through the cable to be tested, and is also used to perform a first line sequence display control on the first running light module for the cable to be tested according to the line matching signal; the second line finding module is used to receive the line finding signal and the line matching signal, and transmit the line finding signal to the second data processing module, and is also used to perform a second line sequence display control on the second running light module for the cable to be tested according to the line matching signal; the second data processing module is used to perform an audio output control on the audio output module for the cable to be tested according to the line finding signal. It can be seen that the utility model jointly realizes the line-matching function and the line-finding function for the cable to be tested through the host test circuit and the auxiliary machine test circuit: the generation and issuance of line-finding and line-matching control instructions (corresponding to the target signal) are realized by the first data processing module in the host test circuit, and then the first line-finding module in the host test circuit jointly with the first flow light module responds to the target signal, and the second line-finding module in the auxiliary machine test circuit jointly with the second flow light module responds to the target signal. Through the setting of the flow light module, the line-finding function and the line-matching function are realized more significantly, and the convenience of consulting the line-finding function and the line-matching function is improved; in addition, the host test circuit is used to realize the line-finding of the cable line sequence at the host end (near end), and the auxiliary machine test circuit is used to realize the line-finding at the auxiliary machine end (far end), so that the line sequence measurement device further integrates the display function of the flow light on the basis of realizing the line-finding and line-matching functions, expands the use scenario of the cable testing device, and is conducive to improving the applicability and practicality of the cable testing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0047] Figure 1 This is a structural diagram of a cable testing device for finding the right line using a running light disclosed in an embodiment of the utility model;

[0048] Figure 2 This is a structural diagram of another cable testing device for finding the right line with a running light disclosed in an embodiment of the utility model;

[0049] Figure 3 This is a structural diagram of a cable tester disclosed in an embodiment of the present utility model;

[0050] Figure 4 This is a structural diagram of a line-finding transmitting unit disclosed in an embodiment of the present utility model;

[0051] Figure 5 This is a structural diagram of a line alignment submodule disclosed in an embodiment of the present utility model;

[0052] Figure 6 This is a structural diagram of a line-finding receiving submodule disclosed in an embodiment of the present utility model;

[0053] Figure 7 This is a structural diagram of a length measurement module disclosed in an embodiment of the utility model. DETAILED DESCRIPTION

[0054] For better understanding and implementation, the following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0055] It should be noted that, unless otherwise expressly specified and limited, the term "electrical connection" in the specification and claims of the present invention and the above-mentioned drawings should be understood in a broad sense. For example, it can be a fixed electrical connection, a detachable electrical connection, or an integral electrical connection; it can be a mechanical electrical connection, an electrical electrical connection, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. In addition, the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. The terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] Example 1

[0057] See also Figure 1 , Figure 1This is a schematic diagram of the structure of a cable testing device for finding the line with a running light disclosed in the embodiment of the utility model. The device can be applied to cable testers (such as line finders, line alignment instruments, etc.), and the embodiment of the utility model does not limit it. Figure 1 As shown, the cable testing device for finding a pair of lines with a running light includes a host test circuit 101 and a slave test circuit 102. The host test circuit 101 includes a first pair finding module 1012 and a first data processing module 1011 and a first running light module 1013 connected to the first pair finding module 1012; the slave test circuit 102 includes an audio output module 1024, a second pair finding module 1022 and a second data processing module 1021 and a second running light module 1023 connected to the second pair finding module 1022. The audio output module 1024 is connected to the second data processing module 1021, wherein:

[0058] The first data processing module 1011 is configured to generate a line-finding signal for performing a line-finding operation and a line-aligning signal for performing a line-aligning operation;

[0059] The first pairing line finding module 1012 is used to transmit the line finding signal and the pairing signal to the second pairing line finding module 1022 through the cable to be tested, and is also used to perform the first line sequence display control for the first flow light module 1013 on the cable to be tested according to the pairing signal;

[0060] The second line search module 1022 is used to receive the line search signal and the line alignment signal, and transmit the line search signal to the second data processing module 1021, and is also used to perform the second line sequence display control for the second flow light module 1023 on the cable to be tested according to the line alignment signal;

[0061] The second data processing module 1021 is configured to perform audio output control on the audio output module 1024 for the cable to be tested according to the line search signal.

[0062] It can be seen that implementation Figure 1The described cable testing device with running light for finding the line, jointly realizes the running light line matching function and the line finding function for the cable to be tested through the main machine test circuit and the auxiliary machine test circuit: the generation and issuance of line finding and line matching control instructions (corresponding to the target signal) are realized by the first data processing module in the main machine test circuit, and then the first line finding module in the main machine test circuit jointly with the first running light module responds to the target signal, and the second line finding module in the auxiliary machine test circuit jointly with the second running light module responds to the target signal. Through the setting of the running light module, the realization results of the line finding function and the line matching function are more significant, and the convenience of consulting the line finding function and the line matching function is improved; in addition, the main machine test circuit is used to realize the line matching of the cable line sequence at the main machine end (near end), and the auxiliary machine test circuit is used to realize the line matching at the auxiliary machine end (far end), so that the line sequence measurement device further integrates the display function of the running light on the basis of realizing the line finding and line matching functions, expands the use scenario of the cable testing device, and is conducive to improving the applicability and practicality of the cable testing device.

[0063] In an alternative embodiment, see Figure 2 , Figure 2 This is a schematic diagram of the structure of another cable testing device for finding the right line with a running light disclosed in an embodiment of the utility model. Figure 2 As shown, the first line-finding module 1012 includes a line-finding submodule 10121, wherein:

[0064] The second end of the first data processing module 1011 is electrically connected to the first end of the line finding submodule 10121; the second end of the line finding submodule 10121 is communicatively connected to the second end of the second line finding module 1022;

[0065] The line-finding submodule 10121 is used to generate a transmission signal that matches the line-finding signal based on the line-finding signal transmitted by the first data processing module 1011; and transmit the transmission signal to the second line-finding module 1022 through the cable to be tested, so as to trigger the second line-finding module 1022 to perform preset signal processing on the transmission signal, and the preset signal processing includes filtering processing and / or signal amplification processing.

[0066] In this optional embodiment, further optionally, the line search submodule 10121 includes a line search transmission unit TX1 and a line search transmission port RJ1, wherein:

[0067] The second end of the first data processing module 1011 is electrically connected to the first end of the line search and transmission unit TX1; the second end of the line search and transmission unit TX1 is electrically connected to the first end of the line search and transmission port RJ1;

[0068] The second end of the line search transmission port RJ1 is communicatively connected to the third end of the cable to be tested; the fourth end of the cable to be tested is communicatively connected to the first end of the second line search module 1022;

[0069] The line-finding transmission unit TX1 is used to perform unit adjustment to match the line-finding signal according to the line-finding signal transmitted by the first data processing module 1011, and generate a transmission signal that matches the line-finding signal, and transmit the transmission signal to the line-finding transmission port RJ1, so as to transmit the transmission signal through the cable to be tested to the second line-finding module 1022 through the line-finding transmission port RJ1.

[0070] In this optional embodiment, the line-finding transmission port RJ1 is actually used as a signal sending port for executing the line-finding function, and can also be used as a signal interaction port for executing the line-matching function; but the line-finding transmission port RJ1 is only used to execute the line-finding function or the line-matching function at the same time.

[0071] In this alternative embodiment, see Figure 4 , Figure 4 This is a schematic structural diagram of a line-finding transmitting unit disclosed in an embodiment of the present utility model; Figure 4 As shown, the line-finding transmission unit TX1 includes at least a control chip U16 and a signal generation subunit TX11, wherein:

[0072] The signal generation subunit TX11 is electrically connected to the second terminal of the first data processing module 1011 through the first interactive port MCU_SCAN_A and the second interactive port MCU_SCAN_B; the second terminal of the signal generation subunit TX11 is electrically connected to the first terminal of the control chip U16; the third terminal of the signal generation subunit TX11 is electrically connected to the second terminal of the control chip U16;

[0073] The third terminal of the control chip U16 and the fourth terminal of the control chip U16 are both electrically connected to the first terminal of the line search transmission port RJ1;

[0074] In this optional embodiment, further, the signal generation submodule TX11 includes a first filter capacitor C48, a first filter resistor R76, a first current limiting resistor R62, and a first MOS transistor Q10; the signal generation submodule TX11 also includes a second filter resistor R65, a second current limiting resistor R64, and a second MOS transistor Q11, wherein:

[0075] The second end of the first data processing module 1011 is electrically connected to the first end of the first interactive port MCU_SCAN_A of the signal generating submodule TX11; the second end of the first interactive port MCU_SCAN_A of the signal generating submodule TX11 is electrically connected to the first end of the first filter capacitor C48 and the first end of the first filter resistor R76 respectively;

[0076] The second end of the first filter capacitor C48, the second end of the first filter resistor R76, and the first end of the first current-limiting resistor R62 are all electrically connected to the gate of the MOS transistor Q10; the second end of the first current-limiting resistor R62 is grounded; the source of the first MOS transistor Q10 and the first end of the first protection resistor R11 are connected to the power supply; the second end of the first protection resistor is connected to the power supply; the drain of the first MOS transistor Q10 is grounded;

[0077] The second end of the first data processing module 1011 is electrically connected to the first end of the MCU_SCAN_B port of the signal generating submodule TX11; the second end of the first interactive port MCU_SCAN_B of the signal generating submodule TX11 is electrically connected to the first end of the second filter resistor R65;

[0078] The second end of the second filter resistor R65 is electrically connected to the first end of the second current limiting resistor R64 and the gate of the second MOS transistor Q11 respectively; the second end of the second current limiting resistor R64 and the source of the second MOS transistor Q11 are both grounded; the drain of the second MOS transistor Q11 is electrically connected to the first end of the second protection resistor R63; and the second end of the second protection resistor R63 is connected to a power supply.

[0079] In this optional embodiment, the first data processing module 1011 controls the on and off of the first MOS transistor Q10 and the second MOS transistor Q11 through the first interactive port MCU_SCAN_A and the second interactive port MCU_SCAN_B, thereby controlling the control chip U16 to output the required transmission signal;

[0080] In this optional embodiment, specifically, the control chip U16 can be a four-way buffer SN74HC125 with three-state output.

[0081] It can be seen that in this optional embodiment, by providing a cable testing device with a host-side (near-end) line-finding function, and the line-finding function is linked to the running light function, it is beneficial to improve the display accuracy of the line-finding results of the line-finding function, as well as to improve the convenience of users in viewing the line-finding results and improving the convenience of users in using the line-finding function.

[0082] In this optional embodiment, optionally, as Figure 2 As shown, the first line-finding module 1012 further includes a line-finding submodule 10122, wherein:

[0083] The first end of the first data processing module 1011 is electrically connected to the first end of the alignment submodule 10122; the second end of the alignment submodule 10122 is electrically connected to the first end of the cable to be tested; the third end of the alignment submodule 10122 is electrically connected to the first end of the first running light module 1013;

[0084] The alignment submodule 10122 is used to receive the alignment signal transmitted by the first data processing module 1011, and perform an alignment operation on the host end of the cable to be tested according to the alignment signal, obtain the host-end alignment result for the host end of the cable to be tested, and send the host-end alignment result to the first flow light module 1013 to trigger the first flow light module 1013 to perform the first line sequence display operation according to the host-end alignment result.

[0085] In this alternative embodiment, see Figure 5 , Figure 5 This is a schematic structural diagram of a line submodule disclosed in an embodiment of the present utility model; Figure 5 As shown, the line submodule 10122 includes a control chip U15, which can be a base counter CD4017;

[0086] In this optional embodiment, further, the first data processing module 1011 controls the control chip U15 to output the power supply at the output pin ( Figure 5 DO0-D09 and C / OUT in U15 of the tester alternately output high-level and low-level signals; then, when the cable under test has alternating high and low-level outputs, a current loop is formed between the host test circuit, the cable under test, and the slave test circuit; wherein, the current loop may have straight-through, open circuit, short circuit, crossover, etc.

[0087] In this optional embodiment, the first flow light module 1013 corresponding to different current loops will perform different first line sequence display operations; specifically, when the tested cable has an open circuit, the corresponding line sequence indicator light will not light up. The general line sequence results are as follows:

[0088] The line sequence of this machine: 1-2-3-4-5-6-7-8-G

[0089] Remote line sequence: 1-2-3-4-5-6-7-8-G

[0090] Among them, when there is a circuit breaker in line 2, the sequence light of line 2 will not light up, and the sequence lights of other lines will light up in sequence; when there is a cross in the line to be tested, the flow lights will light up at staggered points, such as when line 2 and line 5 cross. At this time, the normal flow light of this machine will light up, and the sequence lights of line 2 and line 5 at the remote end will light up in a cross pattern.

[0091] It can be seen that in this optional embodiment, by providing a cable testing device with a host-side (near-end) alignment function, and the alignment function is linked to the running light function, it is beneficial to improve the display accuracy of the alignment results of the alignment function, as well as to improve the convenience of users in viewing the alignment results and improving the convenience of users in using the alignment function.

[0092] In another optional embodiment, as Figure 2 As shown, the second line-finding module 1022 includes a line-finding receiving submodule 10221, wherein:

[0093] The second end of the line search transmission port RJ1 is communicatively connected to the third end of the cable to be tested; the fourth end of the cable to be tested is communicatively connected to the first end of the line search receiving submodule 10221; the second end of the line search receiving submodule 10221 is electrically connected to the first end of the second data processing module 1021;

[0094] The line search receiving submodule 10221 is configured to receive the transmission signal sent by the line search transmitting port RJ1, perform filtering processing and / or signal amplification processing corresponding to the preset signal processing on the transmission signal, and transmit the corresponding preset signal processing result to the second data processing module 1021;

[0095] The second data processing module 1021 is configured to determine a signal amplitude corresponding to a preset signal processing result, generate an audio output signal matching the signal amplitude, and transmit the audio output signal to the audio output module 1024 so as to output a target audio signal matching the audio output signal through the audio output module 1024;

[0096] The second data processing module 1021 is also used to generate a display control signal for the second running light module 1023 according to the preset signal processing result, and control the second running light module 1023 to perform a second line sequence display operation according to the display control signal. The second line sequence display operation is used to indicate the signal strength corresponding to the transmitted signal.

[0097] It can be seen that in this optional embodiment, by providing a cable testing device with a slave-end (remote-end) line-finding function, and the line-finding function is linked to the running light function, on the basis of providing the host-end line-finding function in advance, the application scenario of the line-finding function is expanded. The host-end and slave-end, that is, the setting of the near-end and far-end line-finding functions, further improve the completeness of the cable testing device in the line-finding function, which is beneficial to improving the applicability of the cable testing device; in addition, the cable testing device is also integrated with a linked audio output module, which can output the target audio signal corresponding to the line-finding result more conveniently and intuitively through the audio data module. By outputting target audio signals of different intensities (loudness), the line-finding result on the slave-end can be intuitively clarified, which is beneficial to improving the user's convenience in using the line-finding function.

[0098] In this optional embodiment, further, the line search receiving submodule 10221 includes a signal processing unit U1, a filtering unit Y1 and a signal amplifying unit U2, wherein:

[0099] The second end of the line search transmission port RJ1 is communicatively connected to the third end of the cable to be tested; the fourth end of the cable to be tested is communicatively connected to the first end of the signal processing unit U1; the second end of the signal processing unit U1 is electrically connected to the first end of the filtering unit Y1 and the first end of the signal amplifying unit U2 respectively;

[0100] The second end of the filter unit Y1 is used for grounding; the third end of the filter unit Y1 is used for connecting to the power supply; the second end of the signal amplifying unit U2 is used for grounding; the third end of the signal amplifying unit U2 is electrically connected to the first end of the second data processing module 1021;

[0101] The signal processing unit U1 is used to receive the transmission signal and transmit the transmission signal to the filtering unit Y1;

[0102] The filtering unit Y1 is used to perform filtering and frequency selection operations on the transmission signal, and transmit the corresponding filtered frequency-selected signal to the signal amplification unit U2;

[0103] The signal amplification unit U2 is configured to perform a signal amplification operation on the filtered frequency-selected signal and feed back the corresponding signal amplification result to the second data processing module 1021 ; the signal amplification operation includes at least two stages of signal amplification processing.

[0104] In this alternative embodiment, see Figure 6 , Figure 6 This is a schematic diagram of the structure of a line-finding receiving submodule disclosed in an embodiment of the present utility model; Figure 6 As shown, the signal processing unit U1 corresponds to Figure 6 The control chip U19 and filter unit Y1 correspond to Figure 6 The filter Y3 and the third filter capacitor C76 in the signal amplification unit U2 correspond to Figure 6 The first amplifier U20-A and the second amplifier U20-B in the line-finding receiving submodule; the specific connection method of the internal components in the line-finding receiving submodule can be found in Figure 6 , I will not go into details here.

[0105] In this alternative embodiment, Figure 6 The signal received by receiving antenna L1 (the transmit signal mentioned above) is frequency-selected by piezoelectric ceramic filter Y3, amplified in two stages by U20 (U20-A and U20-B), and then input into the MCU processing module. The first stage of amplification allows the first data processing module 1011 to control the high and low levels of pins 9, 10, and 11 of the U19 analog switch to adjust the amplification factor and sensitivity.

[0106] It can be seen that in this optional embodiment, the transmission signal sent by the host end is received at the slave end, and filtering and signal amplification operations are set for the transmission signal, thereby improving the signal accuracy of the transmission signal to adapt to subsequent signal execution requirements, which is beneficial to improving the accuracy of the operation corresponding to the slave end receiving the line-hunting signal and the subsequent execution of the line-hunting operation matching the line-hunting signal when the host end and the slave end use communication to send the line-hunting signal, thereby further improving the applicability of the cable testing device.

[0107] In another optional embodiment, Figure 2 As shown, the second pairing module 1022 further includes a secondary machine interaction port RJ2, wherein:

[0108] The first end of the auxiliary machine interaction port RJ2 is used to be electrically connected to the second end of the cable to be tested; the second end of the auxiliary machine interaction port RJ2 is electrically connected to the first end of the second running light module 1023;

[0109] The line submodule 10122 is also used to transmit the line signal to the auxiliary machine interactive port RJ2;

[0110] The auxiliary machine interaction port RJ2 is used to perform a line alignment operation on the auxiliary machine end of the cable to be tested according to the line alignment signal, obtain the auxiliary machine end line alignment result for the auxiliary machine end of the cable to be tested, and send the auxiliary machine end line alignment result to the second flow light module 1023 to trigger the second flow light module 1023 to perform a second line sequence display operation according to the auxiliary machine end line alignment result.

[0111] In this optional embodiment, for the specific operating procedures of the second streaming light module 1023 performing the second line sequence display operation according to the line alignment result of the slave end and the line sequence display result obtained by the operation, please refer to the above-mentioned specific operating procedures of the first streaming light module 1023 performing the first line sequence display operation according to the line alignment result of the host end and the specific description corresponding to the line sequence display result, which will not be repeated here.

[0112] In this optional embodiment, the auxiliary machine end line matching function is realized by combining the auxiliary machine interaction interface with the second running light module, which is beneficial to improving the applicability of the cable testing device.

[0113] In another optional embodiment, Figure 2 As shown, the second pair-finding module 1022 further includes an interface detection submodule 10222, wherein;

[0114] The third end of the auxiliary machine interaction port RJ2 is electrically connected to the first end of the interface detection submodule 10222; the second end of the interface detection submodule 10222 is electrically connected to the second end of the second data processing module 1021;

[0115] The interface detection submodule 10222 is configured to collect port operation data corresponding to the auxiliary machine interaction port RJ2, determine port connection information of the auxiliary machine interaction port RJ2 based on the port operation data, and transmit the port connection information to the second data processing module 1021; the port connection information includes first information or non-first information indicating that the auxiliary machine interaction port RJ2 is connected to the line search transmission port RJ1 via a cable;

[0116] The interface detection submodule 10222 is further configured to receive the port control instruction fed back by the second data processing module 1021 in response to the port connection information, and perform port control on the auxiliary machine interactive port RJ2 according to the port control instruction, wherein the port control includes port start and stop control.

[0117] In this optional embodiment, as described above, when the line-finding transmission port RJ1 and the auxiliary machine interaction port RJ2 are connected by a cable, the interface detection submodule 10222 can automatically detect the action and status of the connection between the two ports, and at this time will control the host test circuit and the auxiliary machine test circuit to perform functional operations related to the line function.

[0118] It can be seen that in this optional embodiment, by setting up an intelligent detection module for the auxiliary machine interaction port, the interface detection sub-module can flexibly adjust the current execution of the line-finding function or the line-matching function at the auxiliary machine test circuit according to the real-time connection status of the auxiliary machine interaction port, thereby improving the switching accuracy and execution accuracy of the line-finding function and the line-matching function on the auxiliary machine side.

[0119] In another optional embodiment, Figure 2 As shown, the host test circuit 101 further includes a length measurement module 1014, wherein:

[0120] The first end of the length measuring module 1014 is used to be electrically connected to the first end of the measured wire group; the second end of the length measuring module 1014 is electrically connected to the third end of the first data processing module 1011;

[0121] The first data processing module 1011 is further configured to transmit the generated length measurement trigger signal to the length measurement module 1014 and simultaneously send a preset pulse wave to the measured line group;

[0122] The length measurement module 1014 is configured to perform a measurement operation on the measured line group based on a preset pulse wave and write the corresponding measurement result into a result register of the length measurement module 1014;

[0123] The first data processing module 1011 is further configured to read the measurement results, perform calculations based on a preset algorithm on the measurement results, and display the corresponding calculation results on a display module externally connected to the first data processing module 1011 .

[0124] In this optional embodiment, the length measurement module 1014 in the present invention can specifically refer to a TDC length measurement module. Specifically, MS1003 is used as the main measurement unit of time measurement (TDC), and an external network port isolation transformer, multiple single-pole double-throw analog switches, high-speed comparators and other components are added to form a length measurement management module, which communicates with the MCU processing module through high-speed SPI.

[0125] In this alternative embodiment, see Figure 7 , Figure 7 This is a schematic diagram of the structure of a length measurement module disclosed in an embodiment of the present utility model. Figure 7 As shown, a trigger signal is sent to the length measurement module 1014 via the MCU_TDC_START network in the first data processing module 1011. Simultaneously, a pulse wave is sent to the measured line group via the MCU_TDC_CLOCK network. At this point, the TDC gate circuit in the length measurement module 1014 begins counting until the stop (stop1 / stop2) signal in the length measurement module 1014 generates a record count result. Counting stops when the expected STOP pulse count is reached. After the time measurement is completed, the length measurement module 1014 automatically writes the measurement results of each pulse to the corresponding result register in sequence. The first data processing module 1011 reads the measurement results in the length measurement module 1014 register via SPI communication and applies an algorithmic calculation. The calculation results are displayed on a display module configured for the cable test device. This display module can be external to the cable test device or integrated into the cable test device, as is not limited to this optional embodiment.

[0126] It can be seen that in this optional embodiment, the cable testing device, in addition to integrating the running light display function, line finding function, and line worker function, further integrates the cable length measurement function, enriches the functional categories of the cable testing device, and is conducive to improving the applicability and practicality of the cable testing device.

[0127] The working principle of the cable testing device for finding the right line with a running light in the embodiment of the utility model is as follows:

[0128] In an embodiment of the present invention, the user triggers different usage functions on the cable testing device according to current usage needs, and the usage functions include line-finding function, line-aligning function and length measurement function; then, a starting control instruction (that is, the target signal mentioned above) matching the usage function is generated at the first data processing module of the host test circuit, and at the host end (host test circuit), the first line-finding module is combined with the first running light module and the audio output module to perform the line-finding operation, line-aligning operation or length measurement operation matching the control instruction; at the same time, when the host end executes the control instruction, the host end synchronizes the control instruction to the second line-finding module, and the second line-finding module set by the slave end is combined with the second running light module and the audio output module to implement the line-finding operation and line-aligning operation matching the control instruction, thereby realizing the line-finding function of the far and near ends (host end and slave end).

[0129] It should be noted that the above principle description is for a cable testing device with one running light for finding the pair of lines. For the principle of a cable testing device with multiple running lights for finding the pair of lines, please refer to the above-mentioned specific description of the principle of a cable testing device with one running light for finding the pair of lines, which will not be repeated here.

[0130] Example 2

[0131] See also Figure 3 , Figure 3 This is a schematic diagram of the structure of a cable tester disclosed in an embodiment of the present invention. The cable tester includes any of the cable testing devices for finding the right cable using a running light, as described in Example 1. The cable tester also includes, but is not limited to, cable finders, alignment instruments, and other instruments with cable testing functions. It should be noted that for a detailed description of the cable testing device for finding the right cable using a running light, please refer to the relevant description in Example 1 and will not be repeated in this embodiment.

[0132] It can be seen that implementation Figure 3The described cable tester can jointly realize the line-matching function and the line-finding function for the cable to be tested through the host test circuit and the auxiliary test circuit: the line-finding and line-matching control instructions (corresponding to the target signal) are generated and issued by the first data processing module in the host test circuit, and then the first line-finding module in the host test circuit jointly with the first flow light module responds to the target signal, and the second line-finding module in the auxiliary test circuit jointly with the second flow light module responds to the target signal. Through the setting of the flow light module, the line-finding function and the line-matching function are more significantly realized, and the convenience of consulting the line-finding function and the line-matching function is improved; in addition, the host test circuit is used to realize the line-matching of the cable line sequence at the host end (near end), and the auxiliary test circuit is used to realize the line-matching at the auxiliary end (far end), so that the line sequence measurement device further integrates the display function of the flow light on the basis of realizing the line-finding and line-matching functions, expands the use scenario of the cable test device, and is conducive to improving the applicability and practicality of the cable test device.

[0133] The above is a detailed introduction to a cable testing device and a cable tester for finding the right line with a flowing light disclosed in an embodiment of the present invention. Specific embodiments are used in this article to illustrate the principle and implementation method of the present invention, but the above preferred embodiments are not used to limit the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for general technical personnel in this field, based on the idea of ​​the present invention, without departing from the spirit and scope of the present invention, there will be changes in the specific implementation method and application scope. Therefore, the scope of protection of the present invention shall be based on the scope defined by the claims.

Claims

1. A cable testing device for finding the right line of a running light, characterized in that: The cable testing device includes a main unit test circuit and a secondary unit test circuit. The main unit test circuit includes a first pair-finding module and a first data processing module and a first running light module connected to the first pair-finding module. The secondary unit test circuit includes an audio output module, a second pair-finding module, and a second data processing module and a second running light module connected to the second pair-finding module. The audio output module is connected to the second data processing module, wherein: The first data processing module is configured to generate a line-finding signal for performing a line-finding operation and a line-aligning signal for performing a line-aligning operation; The first pairing line finding module is used to transmit the line finding signal and the pairing line signal to the second pairing line finding module through the cable to be tested, and is also used to perform a first line sequence display control for the first running light module on the cable to be tested according to the pairing line signal; The second line-finding module is configured to receive the line-finding signal and the line-matching signal, transmit the line-finding signal to the second data processing module, and perform a second line sequence display control on the second running light module for the cable under test according to the line-matching signal; The second data processing module is configured to perform audio output control on the audio output module for the cable to be tested according to the line-finding signal.

2. The cable testing device for finding the right line of a running light according to claim 1, characterized in that: The first line-finding module includes a line-finding submodule, wherein: The second end of the first data processing module is electrically connected to the first end of the line-finding submodule; the second end of the line-finding submodule is communicatively connected to the second end of the second line-finding module; The line-finding sub-module is used to generate a transmission signal that matches the line-finding signal based on the line-finding signal transmitted by the first data processing module; and transmit the transmission signal to the second line-finding module through the cable to be tested, so as to trigger the second line-finding module to perform preset signal processing on the transmission signal, and the preset signal processing includes filtering processing and / or signal amplification processing.

3. The cable testing device for finding the right line of a running light according to claim 2, characterized in that: The line-finding submodule includes a line-finding transmitting unit and a line-finding transmitting port, wherein: The second end of the first data processing module is electrically connected to the first end of the line-finding transmitting unit; the second end of the line-finding transmitting unit is electrically connected to the first end of the line-finding transmitting port; The second end of the line-finding transmission port is communicatively connected to the third end of the cable to be tested; the fourth end of the cable to be tested is communicatively connected to the first end of the second line-finding module; The line-finding transmission unit is used to perform unit adjustment to match the line-finding signal according to the line-finding signal transmitted by the first data processing module, generate a transmission signal that matches the line-finding signal, and transmit the transmission signal to the line-finding transmission port, so as to transmit the transmission signal through the cable to be tested to the second line-finding module through the line-finding transmission port.

4. The cable testing device for finding the right line of a running light according to claim 3, characterized in that: The first line search module further includes a line alignment submodule, wherein: The first end of the first data processing module is electrically connected to the first end of the line submodule; the second end of the line submodule is electrically connected to the first end of the cable to be tested; the third end of the line submodule is electrically connected to the first end of the first running light module; The alignment sub-module is used to receive the alignment signal transmitted by the first data processing module, and perform an alignment operation on the host end of the cable to be tested according to the alignment signal, obtain a host-end alignment result for the host end of the cable to be tested, and send the host-end alignment result to the first running light module to trigger the first running light module to perform a first line sequence display operation according to the host-end alignment result.

5. The cable testing device for finding the right line of a running light according to claim 4, characterized in that: The second line search module includes a line search receiving submodule, wherein: The second end of the line-finding transmitting port is communicatively connected to the third end of the cable to be tested; the fourth end of the cable to be tested is communicatively connected to the first end of the line-finding receiving submodule; the second end of the line-finding receiving submodule is electrically connected to the first end of the second data processing module; The line search receiving submodule is used to receive the transmission signal sent by the line search transmitting port, perform preset signal processing corresponding to filtering processing and / or signal amplification processing on the transmission signal, and transmit the corresponding preset signal processing result to the second data processing module; The second data processing module is configured to determine a signal amplitude corresponding to the preset signal processing result, generate an audio output signal matching the signal amplitude, and transmit the audio output signal to the audio output module so as to output a target audio signal matching the audio output signal through the audio output module; The second data processing module is also used to generate a display control signal for the second running light module according to the preset signal processing result, and control the second running light module to perform a second line sequence display operation according to the display control signal, and the second line sequence display operation is used to indicate the signal strength corresponding to the transmitted signal.

6. The cable testing device for finding the right line of a running light according to claim 5, characterized in that: The line search receiving submodule includes a signal processing unit, a filtering unit, and a signal amplification unit, wherein: The second end of the line-finding transmission port is communicatively connected to the third end of the cable to be tested; the fourth end of the cable to be tested is communicatively connected to the first end of the signal processing unit; the second end of the signal processing unit is electrically connected to the first end of the filtering unit and the first end of the signal amplifying unit respectively; The second end of the filtering unit is used for grounding; the third end of the filtering unit is used for connecting to a power supply; the second end of the signal amplifying unit is used for grounding; the third end of the signal amplifying unit is electrically connected to the first end of the second data processing module; The signal processing unit is configured to receive the transmission signal and transmit the transmission signal to the filtering unit; The filtering unit is configured to perform filtering and frequency selection operations on the transmit signal, and transmit the corresponding filtered frequency-selected signal to the signal amplifying unit; The signal amplification unit is used to perform a signal amplification operation on the filtered frequency-selected signal and feed back the corresponding signal amplification result to the second data processing module; the signal amplification operation includes at least two stages of signal amplification processing.

7. The cable testing device for finding the right line of a running light according to claim 5 or 6, characterized in that: The second pairing module further includes a secondary machine interaction port, wherein: The first end of the auxiliary machine interaction port is used to be electrically connected to the second end of the cable to be tested; the second end of the auxiliary machine interaction port is electrically connected to the first end of the second running light module; The alignment submodule is further configured to transmit the alignment signal to the secondary machine interaction port; The auxiliary machine interaction port is used to perform the alignment operation on the auxiliary machine end of the cable to be tested according to the alignment signal, obtain the auxiliary machine end alignment result for the auxiliary machine end of the cable to be tested, and send the auxiliary machine end alignment result to the second running light module to trigger the second running light module to perform the second line sequence display operation according to the auxiliary machine end alignment result.

8. The cable testing device for finding the right line of a running light according to claim 7, characterized in that: The second pairing line finding module further includes an interface detection submodule, wherein; The third end of the auxiliary machine interaction port is electrically connected to the first end of the interface detection submodule; the second end of the interface detection submodule is electrically connected to the second end of the second data processing module; The interface detection submodule is configured to collect port operation data corresponding to the auxiliary machine interaction port, determine port connection information of the auxiliary machine interaction port based on the port operation data, and then transmit the port connection information to the second data processing module; the port connection information includes first information or non-first information indicating that the auxiliary machine interaction port is connected to the line-finding transmission port via a cable; The interface detection submodule is further configured to receive a port control instruction fed back by the second data processing module in response to the port connection information, and perform port control on the auxiliary machine interaction port according to the port control instruction, wherein the port control includes port start and stop control.

9. The cable testing device for finding the right line of a running light according to claim 1 or 2 or 3 or 4 or 5 or 6 or 8, characterized in that: The host test circuit further includes a length measurement module, wherein: The first end of the length measuring module is used to be electrically connected to the first end of the measured line group; the second end of the length measuring module is electrically connected to the third end of the first data processing module; The first data processing module is further configured to transmit the generated length measurement trigger signal to the length measurement module and simultaneously send a preset pulse wave to the measured line group; The length measurement module is configured to perform a measurement operation on the measured line group for the preset pulse wave, and write the corresponding measurement result into a result register of the length measurement module; The first data processing module is further configured to read the measurement results, perform calculations based on a preset algorithm on the measurement results, and display the corresponding calculation results on a display module externally connected to the first data processing module.

10. A cable tester, characterized in that: The cable tester includes a device body, and the cable tester includes the cable testing device for finding the pair of flowing lights according to any one of claims 1 to 9.

Images