Conduction detection system and method of cable network for satellite

Abstract

The invention belongs to the technical field of cable network detection, and particularly relates to a conduction detection system and method of a cable network for a satellite. The technical problems that in the prior art, time and labor are consumed in the manual detection process, the troubleshooting period is long, and the overall development progress is affected are solved. Comprising a detected circuit which is used for adding a detection resistor on each stage of separation surface of a cable network and configuring wireless detection modules on all separation surfaces except the first stage of separation surface; the connection module is connected with the detection port of the detected circuit and is used for providing a plug-in tool corresponding to the detection port and realizing connection between the detected detection port and the detection module; the detection module is connected with the connection module and is used for detecting the current in the detected circuit to obtain a detected current value; and the upper computer module is connected with the detection module, and is used for receiving the detection current value and the wireless signal sent by the wireless detection module, and carrying out fault detection based on the detection current value and the wireless signal to obtain a detection result.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of cable network detection, and particularly relates to a through detection system and method for a satellite cable network. BACKGROUND

[0002] In the process of developing a satellite, a separation surface is designed between each structural plate (or a complex cross-linked cable network) according to actual conditions to realize parallel implementation of design, manufacturing, installation and detection, and to shorten the development cycle of the satellite. When the cable network line passes through the separation surface, each cable is divided into two segments, and the two segments are connected through the pluggable connectors assembled at both ends of the separation surface.

[0003] After the cable network is completely assembled, electrical performance detection needs to be performed to detect whether the line is connected. In the prior art, when the line is not connected, manual checking needs to be performed on all the connectors on the line to determine whether the separation surface connector is disconnected and not plugged in, and the fault position of the disconnected connector is found.

[0004] The prior art has the following technical problems: 1. The manual detection process is time-consuming and labor-intensive, which leads to a long troubleshooting cycle and affects the overall development progress.

[0005] 2. Since the satellite cable network is complex, the number of cables is large, the types of connectors are various, and the layout is dense, manual checking is prone to misjudgment or missed detection due to visual fatigue or unclear identification, which affects the detection reliability.

[0006] 3. The manual detection process lacks standardized recording means, and the detection results are difficult to be digitally archived, which is not conducive to the traceability and analysis of quality problems. SUMMARY

[0007] The application provides a through detection system and method for a satellite cable network, which aims to solve the technical problems in the prior art that the manual detection process is time-consuming and labor-intensive, which leads to a long troubleshooting cycle and affects the overall development progress, manual checking is prone to misjudgment or missed detection due to visual fatigue or unclear identification, which affects the detection reliability, and the manual detection process lacks standardized recording means, and the detection results are difficult to be digitally archived, which is not conducive to the traceability and analysis of quality problems.

[0008] The technical scheme for solving the above technical problems is as follows: a through detection system for a satellite cable network, comprising: a detected circuit, configured to increase a detection resistor at each separation surface of the cable network, and define the first separation surface connected with the connection module to the last separation surface as a first-level separation surface, a second-level separation surface, …, and an n-level separation surface, and all the separation surfaces except the first-level separation surface are provided with a wireless detection module; The connecting module is connected with the detection port of the detected circuit, and is used for providing a corresponding plug-in tool for the detection port, so as to realize the connection between the detected detection port and the detection module. The detection module is connected with the connecting module, and is used for detecting the current in the detected circuit to obtain a detection current value. The host computer module is connected with the detection module, and is used for receiving the detection current value and the wireless signal sent by the wireless detection module, and performing fault detection based on the detection current value and the wireless signal to obtain a detection result.

[0009] Further, the separation surface includes a plug end and a socket end. The first pin of the socket end of the adjacent separation surface is connected with the first pin of the plug end of the separation surface of the previous stage, the second pin of the socket end of the adjacent separation surface is connected with the second pin of the plug end of the separation surface of the previous stage, and the separation surface of the first stage is connected with the connecting module through the first pin and the second pin of the socket end. The fourth pin and the fifth pin of the socket end of all the separation surfaces except the separation surface of the first stage are connected.

[0010] Further, the detected circuit further includes a plurality of detection resistors, wherein each separation surface has a corresponding detection resistor, and the separation surface of the n-th stage further has one corresponding detection resistor. Each separation surface is connected with the corresponding detection resistor in parallel through the first pin and the second pin of the plug end, and the separation surface of the n-th stage is connected with the corresponding detection resistor in parallel through the first pin and the second pin of the socket end.

[0011] Further, the detected circuit further includes a plurality of wireless detection modules, and all the separation surfaces except the separation surface of the first stage are connected with the corresponding wireless detection module through the fourth pin and the fifth pin of the plug end.

[0012] Further, the connecting module is further used for detecting a plurality of detected circuits, and includes a connecting tool, a first wire splitting unit, a second wire splitting unit and a plurality of plug-in tools corresponding to the detected circuits; one end of each plug-in tool is connected with the separation surface of the first stage of the corresponding detected circuit, the other end is connected with the first wire splitting unit and the second wire splitting unit, the other end of the first wire splitting unit and the second wire splitting unit is connected with one end of the connecting tool, and the other end of the connecting tool is connected with the detection module.

[0013] Further, the detection module includes: The power supply unit is used for converting the input alternating current into direct current, and providing direct current voltage for the detected circuit and the host computer module. The detection unit is used for detecting the current in the detected circuit to obtain a detection current value. A communication unit is configured to upload the detection current value to the host computer module.

[0014] Further, the host computer module comprises: An RS485-to-RS232 unit is connected to the detection module and configured to perform serial communication of the detection current value uploaded by the detection module. A PC unit is connected to the RS485-to-RS232 unit and configured to receive the detection current value transmitted by the RS485-to-RS232 unit and the wireless signal transmitted by the wireless detection module, perform fault detection based on the detection current value and the wireless signal, and obtain a detection result.

[0015] Further, the RS485-to-RS232 unit is also configured to receive the detection current value transmitted by multiple detection modules in a networking environment and perform serial communication of the received detection current value.

[0016] In a second aspect, the present application provides a cable network conduction detection method for a satellite, which is applied to the cable network conduction detection system for a satellite and comprises: After the system is started, the power supply unit is used to supply power and establish wireless connection between the wireless detection module and the host computer module. The detection module is used to obtain the detection current value by real-time acquisition of the current in the detected circuit and real-time monitoring of the signal state of the wireless detection module to obtain signal strength data. The detection current value and the signal strength data are packaged into a data packet, and the data packet is transmitted to the host computer module. The host computer module is used to analyze the data packet and determine whether there is a fault in the separation surface based on the wireless signal transmitted by the wireless detection module to obtain a detection result.

[0017] Further, the detection result comprises: Based on the detection current value, the total resistance value in the detected circuit is calculated. Based on the total resistance value, the preliminary detection result is obtained by calculating which separation surface is in an open state. Based on the wireless signal transmitted by the wireless detection module, it is determined whether there is a separation surface open after the open separation surface to obtain the detection result.

[0018] Compared with the prior art, the present application has the following advantages: 1. The application can accurately locate the specific stage of separation surface where the disconnection or other faults occur by increasing the detection resistance at each stage of separation surface and combining the data of the wireless detection module. This greatly improves the accuracy and efficiency of fault diagnosis.

[0019] 2. The application configures wireless detection modules on all separation surfaces except the first stage of separation surface, which can monitor the state of each separation surface in real time. Even if the physical connection is loose or damaged, it can be discovered and warned in time, enhancing the reliability of the entire cable network.

[0020] 3. The connection module design allows simultaneous detection of multiple detected circuits, which is realized through the first branching unit, the second branching unit and multiple plug-in tooling, improving the flexibility and application range of the detection system, and is suitable for the detection needs of complex satellite cable networks.

[0021] Other features and advantages of the present application will be described in the following specification, and some will become apparent from the specification, or will be understood by those skilled in the art. The purpose and other advantages of the present application can be achieved and obtained by the structure indicated in the specification, claims and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0023] Figure 1 A connection diagram of a cable network conduction detection system for satellite according to an embodiment of the present application is shown; Figure 2 A connection diagram of a detected circuit according to an embodiment of the present application is shown; Figure 3 A connection diagram of a connection module according to an embodiment of the present application is shown; Figure 4 A structure diagram of a detection module according to an embodiment of the present application is shown; Figure 5 A networking diagram of multiple detection modules according to an embodiment of the present application is shown; Figure 6 A flowchart of a cable network conduction detection method for satellite according to an embodiment of the present application is shown; Figure 7 A detection result diagram according to an embodiment of the present application is shown.

[0024] Marked: 1, host computer module; 2, detection module; 21, 5V output port; 22, 24V output port; 23, RS485 communication port; 24, power input port; 3, connection module; 31, connection tool; 32, first branch unit; 33, plug-in tool; 34, second branch unit; 4, detected circuit. DETAILED DESCRIPTION

[0025] To make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] Figure 1 A connection diagram of a cable network continuity detection system for satellites according to an embodiment of the present application is shown, as shown in the figure, Figure 1 A cable network continuity detection system for satellites according to an embodiment of the present application includes: A detected circuit 4 is configured to add a detection resistor at each level separation surface of a cable network, and define the first separation surface to the last separation surface connected with the connection module 3 as a first level separation surface, a second level separation surface, …, an n level separation surface. All separation surfaces except the first level separation surface are configured with a wireless detection module. The connection module 3 is connected with the detection port of the detected circuit 4, configured to provide a plug-in tool 33 corresponding to the detection port, and realize the connection between the detected detection port and the detection module 2. The detection module 2 is connected with the connection module 3, configured to detect the current in the detected circuit 4, and obtain a detection current value. The host computer module 1 is connected with the detection module 2, configured to receive the detection current value and the wireless signal sent by the wireless detection module, perform fault detection based on the detection current value and the wireless signal, and obtain a detection result.

[0027] Optionally, the separation surface includes a plug end and a socket end. The No. 1 pin of the socket end of the adjacent separation surface is connected with the No. 1 pin of the plug end of the separation surface of the previous level, the No. 2 pin of the socket end of the adjacent separation surface is connected with the No. 2 pin of the plug end of the separation surface of the previous level, and the first level separation surface is connected with the connection module 3 through the No. 1 pin and the No. 2 pin of the socket end. The No. 4 pin and the No. 5 pin of the socket end of all separation surfaces except the first level separation surface are connected.

[0028] Optionally, the circuit under test 4 further includes multiple detection resistors, wherein each separation surface has a corresponding detection resistor, and the n-level separation surface has an additional corresponding detection resistor. Each separation surface is connected in parallel with the corresponding sensing resistor through pins 1 and 2 on the plug end, and the n-level separation surface is also connected in parallel with the corresponding sensing resistor through pins 1 and 2 on the socket end.

[0029] Optionally, the circuit under test 4 also includes multiple wireless detection modules, and all separation surfaces except the first separation surface are connected to the corresponding wireless detection modules through pins 4 and 5 of the plug end.

[0030] like Figure 2 As shown, in this embodiment, a first-level separation surface, a second-level separation surface, and a third-level separation surface are provided, with resistors R1, R2, and R3 connected in parallel. The third-level separation surface is the last separation surface, and a resistor R4 is also connected in parallel at the socket end.

[0031] In this embodiment, a detection resistor is added to the circuit of each separation surface. A 5V DC voltage is input to the detection port. After the connectors of each separation surface are properly connected, the detection resistors are connected in parallel in the circuit. If a connector or line at a certain stage is disconnected, the number of detection resistors connected in parallel in the line changes, thereby changing the current in the detection loop. Therefore, by detecting the change in the current value at the detection port, the continuity of the line and the location of the fault can be determined. However, this part of the circuit can only detect the disconnection of the first separation surface. If one separation surface is disconnected and then another separation surface is disconnected, only the first separation surface disconnection can be detected. After reconnection, the connection and disconnection of subsequent separation surfaces can be detected. Therefore, a wireless detection module is added to the plug end of the second and subsequent separation surfaces, and adjacent pins are short-circuited at the socket end. When the plug and socket are connected, the circuit is connected and a signal is sent. When the plug and socket are not properly connected, the line is disconnected and no signal can be sent.

[0032] Optionally, the connection module 3 is also used to detect multiple circuits 4 under test, including: a connection fixture 31, a first branching unit 32, a second branching unit 34, and multiple mating fixtures 33 corresponding to the multiple circuits 4 under test; one end of each mating fixture 33 is connected to the first separation surface of the corresponding circuit 4 under test, and the other end is connected to the first branching unit 32 and the second branching unit 34, the other end of the first branching unit 32 and the second branching unit 34 is connected to one end of the connection fixture 31, and the other end of the connection fixture 31 is connected to the detection module 2.

[0033] like Figure 3As shown, in the embodiment, the expansion of the plug-in tool 33 is realized by the first branching unit 32 and the second branching unit 34, and the detection of multiple detected circuits 4 can be realized.

[0034] Optionally, the detection module 2 comprises: A power supply unit is configured to convert input AC power into DC power, and provide DC voltage for the detected circuit 4 and the host computer module 1. A detection unit is configured to detect the current in the detected circuit 4 to obtain a detection current value. A communication unit is configured to upload the detection current value to the host computer module 1.

[0035] As shown, Figure 4 The power supply unit comprises a power input port 24, a 5V output port 21 and a 24V output port 22. The power input port 24 is configured to input 100V-300V AC power. The 5V output port 21 is configured to output 5V voltage to the detected circuit 4. The 24V output port 22 is configured to output 24V voltage to the host computer module 1. The communication unit comprises an RS485 communication port 23.

[0036] Optionally, the host computer module 1 comprises: An RS485-to-RS232 unit is connected with the detection module 2, and is configured to perform serial communication on the detection current value uploaded by the detection module 2. A PC unit is connected with the RS485-to-RS232 unit, and is configured to receive the detection current value transmitted by the RS485-to-RS232 unit and the wireless signal transmitted by the wireless detection module, perform fault detection based on the detection current value and the wireless signal, and obtain a detection result.

[0037] Optionally, the RS485-to-RS232 unit is further configured to receive the detection current value transmitted by multiple detection modules 2 in a networking environment, and perform serial communication on the received detection current value.

[0038] As shown, Figure 5 In the embodiment, the detection module 2 is provided with an RS485 interface, and the communication interface of the PC unit is an RS232 interface. A host computer communication program is developed by using a standard control MSComm of VB6.0, and the detection current value in the detection module 2 is received by the RS485-to-RS232 unit.

[0039] The embodiment of the application further provides a method for detecting the conduction of a satellite cable network, as shown in the method, Figure 6 The method for detecting the conduction of the satellite cable network is applied to the system for detecting the conduction of the satellite cable network, and comprises: After the system is started, power supply is performed by using the power supply unit, and wireless connection between the wireless detection module and the host computer module is established; The detection module is used to obtain the current in the detected circuit in real time, obtain a detection current value, and monitor the signal state of the wireless detection module in real time to obtain signal strength data; The detection current value and the signal strength data are packaged into a data packet, and the data packet is sent to the host computer module; The host computer module is used to analyze the data packet, and in combination with the wireless signal sent by the wireless detection module, it is judged whether there is a fault in the separation surface to obtain a detection result.

[0040] Optionally, the detection result is specifically: Based on the detection current value, the total resistance value in the detected circuit is calculated; Based on the total resistance value, it is calculated which level of separation surface is in an open state to obtain a preliminary detection result; Based on the wireless signal sent by the wireless detection module, it is judged whether there is a separation surface open after the open separation surface to obtain a detection result.

[0041] In this embodiment, when the circuit path connector of each separation surface is in good conduction, at this time , the detected current value is: , or the wireless signal of the second and third separation surfaces can be received to judge that the separation surface connector is well inserted.

[0042] When the first separation surface is disconnected and the subsequent separation surface is not disconnected, at this time , the detected current value is: , and the wireless signal sent by the second and third separation surfaces is received at the same time, and it is judged that the fault occurs at the first separation surface.

[0043] As Figure 7 shown, when the second and third separation surfaces are disconnected, at this time , the detected current value is: , and the wireless signal sent by the second and third separation surfaces cannot be received at the same time, and it is judged that the second and third separation surfaces are disconnected at the same time.

[0044] When the third separation surface is disconnected and the first and second separation surfaces are not disconnected, at this time , the detected current value is: , and the wireless signal of the second separation surface can be received at the same time, and it is judged that only the third separation surface is disconnected.

[0045] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principles. It should be understood by those skilled in the art that the disclosed range of the present application is not limited to the technical scheme formed by the specific combination of the above technical features, and should also cover other technical schemes formed by the combination of the above technical features or equivalent features without departing from the disclosed concept. For example, the technical scheme formed by the mutual replacement of the above features and the technical features with similar functions disclosed in the present application (but not limited to) without departing from the disclosed concept.

Claims

1. A continuity detection system for satellite cable networks, characterized in that, include: The circuit under test is used to add a detection resistor at each separation surface of the cable network, and defines the first separation surface to the last separation surface connected to the connection module as the first-level separation surface, the second-level separation surface, ..., the nth-level separation surface. All separation surfaces except the first-level separation surface are equipped with wireless detection modules. A connection module is connected to the detection port of the circuit under test, and is used to provide the mating fixture corresponding to the detection port to realize the connection between the detection port under test and the detection module; A detection module, connected to the connection module, is used to detect the current in the circuit under test and obtain the detected current value; The host computer module is connected to the detection module and is used to receive the detection current value and the wireless signal sent by the wireless detection module, perform fault detection based on the detection current value and the wireless signal, and obtain the detection result.

2. The continuity detection system for satellite cable networks according to claim 1, characterized in that, The separation surface includes a plug end and a socket end; The first pin of the socket end of the adjacent separation surface is connected to the first pin of the plug end of the previous separation surface, and the second pin of the socket end of the adjacent separation surface is connected to the second pin of the plug end of the previous separation surface. The first separation surface is connected to the connection module through the first and second pins of the socket end. Connect pins 4 and 5 to the socket terminals of all separation surfaces except the first separation surface.

3. The continuity detection system for satellite cable networks according to claim 2, characterized in that, The circuit under test also includes multiple detection resistors, wherein each separation surface has a corresponding detection resistor, and the n-level separation surface has an additional corresponding detection resistor. Each separation surface is connected in parallel with the corresponding sensing resistor through pins 1 and 2 on the plug end, and the n-level separation surface is also connected in parallel with the corresponding sensing resistor through pins 1 and 2 on the socket end.

4. The continuity detection system for satellite cable networks according to claim 2, characterized in that, The circuit under test also includes multiple wireless detection modules. All separation surfaces except the first separation surface are connected to the corresponding wireless detection modules through pins 4 and 5 of the plug end.

5. The continuity detection system for satellite cable networks according to claim 1, characterized in that, The connection module is also used to test multiple circuits under test, including: a connection fixture, a first branching unit, a second branching unit, and multiple mating fixtures corresponding to the multiple circuits under test; one end of each mating fixture is connected to the primary separation surface of the corresponding circuit under test, and the other end is connected to the first branching unit and the second branching unit, the other end of the first branching unit and the second branching unit is connected to one end of the connection fixture, and the other end of the connection fixture is connected to the detection module.

6. The continuity detection system for satellite cable networks according to claim 1, characterized in that, The detection module includes: The power supply unit is used to convert the input AC power into DC power and provide DC voltage for the circuit under test and the host computer module; The detection unit is used to detect the current in the circuit under test and obtain the detected current value; A communication unit is used to upload the detected current value to the host computer module.

7. The continuity detection system for satellite cable networks according to claim 1, characterized in that, The host computer module includes: An RS485 to RS232 converter unit is connected to the detection module and is used for serial communication of the detection current value uploaded by the detection module. The PC unit and the RS485 to RS232 converter are used to receive the detection current value transmitted by the RS485 to RS232 converter and the wireless signal sent by the wireless detection module, and to perform fault detection based on the detection current value and the wireless signal to obtain the detection result.

8. The continuity detection system for satellite cable networks according to claim 7, characterized in that, The RS485 to RS232 converter is also used to receive the detection current values ​​transmitted by multiple detection modules in a network environment, and to perform serial communication of the received detection current values.

9. A continuity detection method for a satellite cable network, wherein the continuity detection method for the satellite cable network is applied to the continuity detection system for the satellite cable network according to any one of claims 1-8, characterized in that, include: After the system starts up, it is powered by the power supply unit and a wireless connection is established between the wireless detection module and the host computer module. The detection module is used to acquire the current in the circuit under test in real time to obtain the detection current value, and the signal status of the wireless detection module is monitored in real time to obtain signal strength data. The detected current value and the signal strength data are packaged into a data packet, and the data packet is sent to the host computer module; The host computer module parses the data packet and combines it with the wireless signal sent by the wireless detection module to determine whether there is a fault on the separation surface, and obtains the detection result.

10. A continuity detection method for a satellite cable network according to claim 9, characterized in that, The specific test results are as follows: Based on the detected current value, calculate the total resistance value in the circuit being tested; Based on the total resistance value, calculate which separation surface is in the open state to obtain preliminary detection results; Based on the wireless signal sent by the wireless detection module, it is determined whether there is another separation surface after the break, and the detection result is obtained.

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