Secondary cable inspection device

Abstract

The invention belongs to the field of cable inspection devices, and particularly relates to a secondary cable inspection device. According to the device, cable inspection is completed through the test machine host and the test machine auxiliary machine which are respectively connected with two ends of a to-be-tested cable; the signal sending module of the test host generates a plurality of different test signals and sequentially sends each test signal to each wire core, and the wire cores transmit the test signals transmitted by the signal sending module to the signal receiving module in the test auxiliary machine. The signal sending module and the signal receiving module respectively generate a test signal sending record and a test signal receiving record, and a controller in the test host generates a corresponding relation between a connecting end of each wire core signal sending module and a connecting end of the signal receiving module according to the received test signal sending record and the test signal receiving record; according to the device, line inspection correspondence can be carried out on a plurality of cable cores through one-time operation, and the cable line inspection speed and the cable line inspection accuracy are improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of cable checking device, and particularly relates to a secondary cable checking device. BACKGROUND

[0002] With the continuous development of the power system, the construction of the transformer substation is continuously accelerated. The cable is a key channel for connecting the protection device, the measurement and control system and the signal transmission in the transformer substation, and the wiring accuracy thereof is directly related to the rapid isolation capability and the system stability when the power grid fails. The secondary cable wiring error may cause the protection misoperation or the refusal to operate, and thus causes a large-area power failure accident. The secondary cable checking is a very important process in the power system technical improvement project. The existing cable checking method is that two workers use the multimeter to check the cable core by core one by one at both ends of the cable. The two workers need to communicate by telephone during the checking process. The method is time-consuming, low in efficiency and prone to errors. SUMMARY

[0003] To solve the problem of long time consumption and low efficiency of the manual checking in the prior art, a secondary cable checking device is provided.

[0004] A secondary cable checking device, comprising a test machine host and a test machine slave, the test machine host and the test machine slave are connected with two ends of a to-be-tested cable respectively, and the to-be-tested cable comprises a plurality of cores.

[0005] The test host comprises a signal sending module and a controller, and the test slave comprises a signal receiving module.

[0006] The signal sending module is connected with one end of each core of the to-be-tested cable respectively, and the signal receiving module is connected with the other end of each core of the to-be-tested cable respectively.

[0007] The signal sending module is used for generating a plurality of different test signals, and sequentially sending each test signal to each core respectively. The signal sending module also sends the test signal sending record to the controller.

[0008] The signal receiving module is used for receiving the test signal transmitted by each core, and sending the test signal receiving record to the controller.

[0009] The controller generates the corresponding relationship between the signal sending module connection end and the signal receiving module connection end of each core according to the received test signal sending record and the test signal receiving record.

[0010] Preferably, the test host further comprises a host shell, the signal sending module and the controller are arranged in the host shell, one end of the host shell is provided with N host wiring holes, and N is an integer.

[0011] Each host wiring hole is connected with one end of the wire core, and the other end of each host wiring hole is connected with the output end of the signal sending module. Each host wiring hole is used for transmitting the test signal generated by the signal sending module to the corresponding wire core.

[0012] Preferably, the test slave machine further comprises a slave machine shell, and the signal receiving module is arranged inside the slave machine shell. One end of the slave machine shell is provided with N slave machine wiring holes.

[0013] Each slave machine wiring hole is connected with the other end of the wire core, and the other end of each slave machine wiring hole is connected with the receiving end of the signal receiving module. Each slave machine wiring hole is used for transmitting the test signal transmitted by each wire core to the signal receiving module.

[0014] Preferably, the surface of the test host is provided with host indicator lamps corresponding to each host wiring hole respectively; and the surface of the test slave machine is provided with slave indicator lamps corresponding to each slave machine wiring hole respectively.

[0015] The controller is in electrical connection with all the host indicator lamps simultaneously, and in communication connection with all the slave indicator lamps simultaneously.

[0016] The controller is used for controlling all the host indicator lamps and all the slave indicator lamps to display corresponding colors according to the corresponding relationship between the connection end of each wire core signal sending module and the connection end of the signal receiving module.

[0017] The host indicator lamp corresponding to the host wiring hole connected with one end of the same wire core displays the same color as the slave indicator lamp corresponding to the slave machine wiring hole connected with the other end of the same wire core.

[0018] Preferably, the controller is further used for judging whether the wire core is open-circuit according to the received test signal sending record and the test signal receiving record, and controlling the host indicator lamp corresponding to the host wiring hole connected with the open-circuit wire core to display an open-circuit fault if the wire core is open-circuit.

[0019] Preferably, the test signal is a current signal.

[0020] Preferably, the signal sending module is set with a time interval between two different test signals adjacent in signal.

[0021] Preferably, the test signal sending record comprises the sending time, the signal waveform, the signal frequency and the host wiring hole serial number corresponding to each test signal sent by the signal sending module.

[0022] The test signal receiving record comprises the receiving time, the signal waveform, the signal frequency and the slave machine wiring hole serial number corresponding to each test signal received by the signal receiving module.

[0023] Preferably, each host indicator lamp and each slave indicator lamp are LED indicator lamps.

[0024] Preferably, the set time ranges from 0 to 1 second.

[0025] The secondary cable line searching device has the advantages that the device can realize line searching and corresponding of multiple cable cores through one operation, and the cable line searching speed and accuracy are improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A secondary cable line searching device principle block diagram is provided for the specific embodiment of the present application. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application is further described in detail below in combination with embodiments and drawings. Herein, the illustrative embodiments of the present application and their descriptions are used to explain the present application, but not as a limitation of the present application.

[0028] A secondary cable line searching device includes a test machine host and a test machine slave, the test machine host and the test machine slave are connected with two ends of a cable to be tested respectively, and the cable to be tested includes multiple cores;

[0029] The test machine includes a signal sending module and a controller, and the test machine slave includes a signal receiving module;

[0030] The signal sending module is connected with one end of each core of the cable to be tested, and the signal receiving module is connected with the other end of each core of the cable to be tested;

[0031] The signal sending module is used to generate multiple different test signals, and sequentially send each test signal to each core, and the signal sending module also sends a test signal sending record to the controller;

[0032] The signal receiving module is used to receive the test signal transmitted by each core, and send a test signal receiving record to the controller;

[0033] The controller generates a corresponding relationship between the signal sending module connection end and the signal receiving module connection end of each core according to the received test signal sending record and test signal receiving record.

[0034] Specifically, the secondary cable line searching device of the application connects a test host with one end of each core of a cable to be tested, and connects a test slave with the other end of each core of the cable to be tested, the signal sending module of the test host sends different test signals to each core in turn, the core transmits the test signal sent by the signal sending module to the signal receiving module, the signal sending module and the signal receiving module generate test signal sending record and test signal receiving record respectively, and the controller in the test host generates a corresponding relationship between the signal sending module connection end and the signal receiving module connection end of each core according to the received test signal sending record and test signal receiving record.

[0035] Further, the test host further comprises a host shell, the signal sending module and the controller are arranged in the host shell, and one end of the host shell is provided with N host line holes, N being an integer.

[0036] One end of each host line hole is connected with one end of the core, the other end of each host line hole is connected with the output end of the signal sending module, and each host line hole is used for transmitting the test signal generated by the signal sending module to the corresponding core.

[0037] Specifically, the host line hole is connected with one end of the core, the core is fixed, and the test signal is transmitted from the signal sending module to the corresponding core.

[0038] Further, the test slave further comprises a slave shell, the signal receiving module is arranged in the slave shell, and one end of the slave shell is provided with N slave line holes.

[0039] One end of each slave line hole is connected with the other end of the core, the other end of each slave line hole is connected with the receiving end of the signal receiving module, and each slave line hole is used for transmitting the test signal transmitted by each core to the signal receiving module.

[0040] Specifically, the slave line hole is connected with the other end of the core, the core is fixed, and the signal transmitted from the signal sending module is transmitted from the core to the signal receiving module.

[0041] Further, the surface of the test host is provided with host indicator lamps corresponding to each host line hole respectively; and the surface of the test slave is provided with slave indicator lamps corresponding to each slave line hole respectively.

[0042] The controller is electrically connected with all the host indicator lamps simultaneously, and the controller is in communication connection with all the slave indicator lamps simultaneously.

[0043] The controller is configured to control all master indicator lights and all slave indicator lights to display corresponding colors according to the correspondence between the sending module connection end and the receiving module connection end of each wire core signal generated.

[0044] The same wire core is connected to the master connection hole and the slave connection hole, and the master indicator light corresponding to the master connection hole connected by the same wire core displays the same color as the slave indicator light corresponding to the slave connection hole connected by the same wire core.

[0045] Specifically, the field staff can correspond the two ends of the wire core according to the color displayed by the master indicator light on the test master and the slave indicator light on the test slave, and the color display of the master indicator light and the slave indicator light improves the cable searching efficiency.

[0046] Further, the controller is further configured to determine whether the wire core is broken according to the received test signal sending record and the test signal receiving record, and if the wire core is broken, control the master indicator light corresponding to the master connection hole connected by the broken wire core to display a broken fault.

[0047] Further, the test signal is a current signal.

[0048] Further, the two different test signals sent by the signal sending module are separated by a set time.

[0049] Further, the test signal sending record includes the sending time, signal waveform, signal frequency and master connection hole serial number corresponding to each test signal sent by the signal sending module.

[0050] The test signal receiving record includes the receiving time, signal waveform, signal frequency and slave connection hole serial number corresponding to each test signal received by the signal receiving module.

[0051] Further, each master indicator light and each slave indicator light is an LED indicator light.

[0052] Further, the set time is in the range of 0 to 1 second.

[0053] Although the present application is described herein with reference to particular embodiments, it is to be understood that these examples are merely illustrative of principles and applications of the present application. It should therefore be understood that numerous modifications can be made to the illustrative embodiments and that other arrangements can be devised without departing from the spirit and scope of the present application as defined by the appended claims. It should be understood that the features described in connection with the individual embodiments can be used in other embodiments.

Claims

1. A secondary cable tracing device, comprising a main tester and a secondary tester, characterized in that: The main test machine and the auxiliary test machine are respectively connected to two ends of the cable to be tested, and the cable to be tested includes multiple cores; The test host includes a signal sending module and a controller, and the test slave includes a signal receiving module; The signal sending module is connected to one end of each core of the cable to be tested, and the signal receiving module is connected to the other end of each core of the cable to be tested; The signal sending module is used to generate a plurality of different test signals and send each test signal to each wire core in turn. The signal sending module also sends the test signal sending record to the controller; The signal receiving module is used to receive the test signal transmitted by each core and send the test signal reception record to the controller; The controller generates a corresponding relationship between a connection end of a signal sending module and a connection end of a signal receiving module of each wire core according to the received test signal sending record and the test signal receiving record.

2. A secondary cable tracing device according to claim 1, characterized in that: The test host further includes a host housing, a signal sending module and a controller are arranged inside the host housing, and one end of the host housing is provided with N host wiring holes, where N is an integer; One end of each host wiring hole is connected to one end of the wire core, and the other end of each host wiring hole is connected to the output end of the signal sending module. Each host wiring hole is used to transmit the test signal generated by the signal sending module to the corresponding wire core.

3. A secondary cable tracing device according to claim 2, characterized in that: The test auxiliary machine also includes an auxiliary machine housing, a signal receiving module is arranged inside the auxiliary machine housing, and one end of the auxiliary machine housing is provided with N auxiliary machine wiring holes; One end of each auxiliary machine wiring hole is connected to the other end of the wire core, and the other end of each auxiliary machine wiring hole is connected to the receiving end of the signal receiving module. Each auxiliary machine wiring hole is used to send the test signal transmitted by each wire core to the signal receiving module.

4. A secondary cable tracing device according to claim 3, characterized in that: The surface of the test host is provided with a host indicator light corresponding to each host wiring hole; the surface of the test auxiliary machine is provided with an auxiliary machine indicator light corresponding to each auxiliary machine wiring hole; The controller is electrically connected to all the main engine indicator lights at the same time, and the controller is communicatively connected to all the auxiliary engine indicator lights at the same time; The controller is used to control all the main unit indicator lights and all the auxiliary unit indicator lights to display corresponding colors according to the corresponding relationship between the connection end of the signal sending module and the connection end of the signal receiving module of each core; The two ends of the same wire core are respectively connected to the main unit wiring hole and the auxiliary unit wiring hole. The main unit indicator light corresponding to the main unit wiring hole connected by the same wire core and the auxiliary unit indicator light corresponding to the auxiliary unit wiring hole connected by the same wire core display the same color.

5. A secondary cable tracing device according to claim 4, characterized in that: The controller is also used to determine whether the wire core is broken based on the received test signal sending record and the test signal receiving record. If the wire core is broken, the host indicator light corresponding to the host wiring hole connected to the broken wire core is controlled to display the broken wire fault.

6. A secondary cable tracing device according to claim 1, characterized in that: The test signal is a current signal.

7. The secondary cable tracing device according to claim 1, characterized in that: The signal sending module sets the time interval between two different test signals sent adjacently.

8. The secondary cable tracing device according to claim 5, characterized in that: The test signal sending record includes the sending time, signal waveform, signal frequency and host wiring hole serial number corresponding to each test signal sent by the signal sending module; The test signal reception record includes the reception time, signal waveform, signal frequency and auxiliary machine wiring hole serial number corresponding to each test signal received by the signal receiving module.

9. The secondary cable tracing device according to claim 5, characterized in that: Each main unit indicator light and each auxiliary unit indicator light are LED indicators.

10. The secondary cable tracing device according to claim 7, characterized in that: The set time ranges from 0 to 1 second.

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