An aviation cable harness electrical contact state detection device and method
By integrating power supply module, current detection module, voltage detection module and data processing module, the problem that traditional detection methods cannot detect faults in aviation cable harnesses is solved, and accurate detection of cable connection status and fault location are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHENGDU AIRCRAFT INDUSTRY GROUP
- Filing Date
- 2023-05-16
- Publication Date
- 2026-06-16
AI Technical Summary
Traditional continuity and insulation testing methods cannot effectively detect faults in aviation cable harnesses, leading to cable breaks and poor connection conditions, which affect the stable operation of aircraft.
The system employs a power module, a current detection module, a voltage detection module, and a data processing module. By collecting current and voltage data and combining the data analysis, the connection status of the cable is determined, including its continuity, contact, and insulation status.
It enables comprehensive testing of aviation cable harnesses, accurately detects fault types and locations, improves the accuracy and efficiency of harness testing, and reduces misjudgments.
Smart Images
Figure CN116609611B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of aviation equipment, and in particular to a device and method for detecting the electrical contact status of aviation cable harnesses. Background Technology
[0002] Airborne wiring harnesses, distributed throughout the aircraft fuselage, are hailed as the aircraft's "neural network." They are the primary carriers and crucial safeguards for energy and signal transmission within aircraft systems. If any part of the wiring harness malfunctions, effective signal and energy transmission between systems and equipment will be impossible. Therefore, the operational status of the wiring harness has a significant impact on the stable operation of the aircraft. Statistics show that airborne wiring harness failures account for 20% of all aviation product malfunctions, and among these, failures caused by cable breaks or insulation damage account for over 80%. In recent years, with the miniaturization of aircraft cabins and the increasing complexity of airborne equipment systems, wiring harness failures have become more frequent. In actual operation, there have been numerous instances where system and equipment signal anomalies directly caused by airborne wiring harness failures have led to aircraft groundings and significant losses, drawing serious attention from relevant authorities.
[0003] Traditional insulation and continuity tests are included in the processing and manufacturing of existing airborne wire harnesses. However, because the testing content and standards for wire harnesses were established relatively early, they are no longer fully applicable to current wire harness manufacturing processes and product components. For example, after the pins and sockets of the cable are crimped, they are connected to the electrical connector via pins to achieve conductivity in the wire harness network. During production, operators use sound to determine whether the pins and sockets are tightly connected to the pins. However, this method relies heavily on the operator's personal experience and is easily affected by environmental and personnel interference, leading to misjudgments. This results in problems such as pin retraction and poor connection in wire harness products, which is a major cause of cable breakage during assembly and operation. Traditional continuity and insulation tests cannot detect these faults.
[0004] The information disclosed in the background section above is only intended to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention
[0005] The main purpose of this application is to provide a device and method for detecting the electrical connection status of aviation cable harnesses, which aims to solve the technical problem that traditional continuity and insulation testing cannot detect related faults. It can realize comprehensive testing of the continuity status, contact status, insulation status, etc. of aviation cable harnesses.
[0006] To address the aforementioned technical problems, this application provides a detection device for the electrical connection status of aviation cable harnesses, comprising a power supply module, a current detection module, a voltage detection module, and a data processing module;
[0007] The power module is used to connect to and supply power to the cable harness under test, the current detection module is used to collect the current data of each cable in the cable harness under test, and the voltage detection module is used to collect the voltage data of each cable in the cable harness under test.
[0008] The data processing module is electrically connected to the current detection module and the voltage detection module respectively. The data processing module is used to receive current data and voltage data, and determine the connection status of each cable in the cable harness under test based on the current data and voltage data.
[0009] Optionally, in some embodiments of the present invention, the power supply module includes 2n+n(n-1) / 2 independent DC current sources and corresponding output ports, where n is the number of cables in the cable harness to be tested.
[0010] Optionally, in some embodiments of the present invention, the current detection module includes 2n+n(n-1) / 2 miniature current clamps or current sensors, where n is the number of cables in the cable harness to be tested.
[0011] Optionally, in some embodiments of the present invention, the voltage detection module includes n voltage sensors and n pairs of leads. The voltage sensors are connected in parallel with the cable harness under test through the leads, where n is the number of cables in the cable harness under test.
[0012] Optionally, in some embodiments of the present invention, the data processing module described above includes a 10:1 attenuation probe.
[0013] Optionally, in some embodiments of the present invention, the above-mentioned data processing module includes a data acquisition module and a data analysis module. The data acquisition module is electrically connected to the current detection module and the voltage detection module, respectively. The data acquisition module is used to acquire current data and voltage data, and the data analysis module is used to determine the connection status of each cable in the cable harness under test based on the current data and voltage data.
[0014] Optionally, in some embodiments of the present invention, the data processing module further includes a data storage module, which is connected to the data acquisition module and the data analysis module respectively, and is used to store the current data and voltage data acquired by the data acquisition module.
[0015] Optionally, in some embodiments of the present invention, a power supply module is further included. The power supply module is electrically connected to the current detection module, the voltage detection module, and the data processing module, respectively. The power supply module is used to supply power to the current detection module, the voltage detection module, and the data processing module.
[0016] Optionally, in some embodiments of the present invention, a visualization module is further included, which is electrically connected to the data processing module.
[0017] Furthermore, to achieve the above objectives, this application also provides a method for detecting the electrical connection status of aviation cable harnesses, the method comprising:
[0018] Acquire the current data detected by the current detection module and the voltage data detected by the voltage detection module;
[0019] Obtain the current value based on the current data;
[0020] Obtain voltage values based on voltage data;
[0021] The current and voltage values are compared with preset values to determine the fault type of the cable harness under test.
[0022] Optionally, in some embodiments of the present invention, the aforementioned current data includes the current signal detected by the current detection module between any conductor, any two conductors, or any conductor and the shielding layer in the cable harness under test; the voltage data includes the voltage signal at both ends of any conductor in the cable harness under test by the voltage detection module.
[0023] Optionally, in some embodiments of the present invention, the above-mentioned S1. based on the output current value I of the DC current source and the standard current value I i Compare; if the output current value I is the same as the standard current value I... i If the values are the same, proceed to step S2; if the output current value I is the same as the standard current value I... i If the values are different, it is determined to be a disconnection fault, and proceed to step S4;
[0024] S2. Based on voltage signal U i Current signal I i and the volume resistance R of a single conductor in the cable harness under test d Calculate the contact resistance R i The specific calculation formula is as follows:
[0025]
[0026] In the formula, U i R is the voltage across the i-th conductor in the cable harness under test. d R is the volume resistance of a single conductor in the cable harness under test. For a specific type of conductor, R is... d It is a fixed value;
[0027] S3. Based on the standard value R of the cable harness under test and the contact resistance R i Compare, if R i If the R value exceeds 20%, it is judged as an abnormal contact condition;
[0028] S4. Based on current signal I i-j Current signal Ii-d Standard value of interphase leakage current I b Comparison, when I i-j and I i-d Greater than I b If the fault occurs, it is determined to be an insulation failure fault, and the faulty conductor is marked, where I i-j I represents the current signal flowing between the i-th and j-th conductors in the cable harness under test. i-d It is the current signal flowing between the i-th conductor and the shielding layer in the cable bundle under test.
[0029] The beneficial effects that this application can achieve.
[0030] An invention titled "Proposed in this application" describes an invention that provides an electrical contact status detection device for aviation cable harnesses, comprising: a power module, a current detection module, a voltage detection module, a data processing module, a power supply module, and a visualization module.
[0031] The data processing module includes a data acquisition module, a data analysis module, and a data storage module.
[0032] The data processing module is electrically connected to the current detection module and the voltage detection module respectively. The data processing module is used to receive current data and voltage data, and determine the connection status of each cable in the cable harness under test based on the current data and voltage data.
[0033] The power supply module is a constant voltage power supply. It is connected to the current detection module, data acquisition module, data storage module, data analysis module, and visualization module via power supply lines, thereby providing power to each module respectively.
[0034] The signal receiving end of the data acquisition module is electrically connected to the current detection module and the voltage detection module respectively. The signal output end of the data acquisition module is electrically connected to the signal receiving end of the data storage module. The signal output end of the data storage module is electrically connected to the signal receiving end of the data analysis module. The signal output end of the data analysis module is electrically connected to the signal receiving end of the visualization module. The data acquisition module and the data storage module can be combined into a data acquisition and storage module.
[0035] The power supply module is connected to the cable harness under test via a power supply line and provides power to the cable harness under test. The current detection module is used to collect the current data of each cable in the cable harness under test. The voltage detection module is used to collect the voltage data of each cable in the cable harness under test. The data acquisition module is used to collect the current data and voltage data. The data storage module is used to store the collected current data and voltage data. The data analysis module analyzes the data collected and stored by the data acquisition module and the data storage module. The visualization module is used to display the analysis results of the data analysis module. Attached Figure Description
[0036] Figure 1 This is a schematic diagram of the structure of the aviation cable harness electrical connection status detection device provided in an embodiment of the present invention;
[0037] Figure 2 This is a schematic diagram of the current detection module provided in an embodiment of the present invention;
[0038] Figure 3 This is a schematic diagram of the voltage detection module provided in an embodiment of the present invention;
[0039] Figure 4 A flowchart of the aviation cable harness electrical connection status detection method provided in the embodiments of the present invention;
[0040] Figure 5 This is a flowchart illustrating a method for determining the fault type of a cable harness under test, provided in an embodiment of the present invention. Icons: 1-Power supply module, 2-Current detection module, 21-Current sensor, 3-Voltage detection module, 31-Lead wire, 32-Voltage sensor, 4-Data processing module, 41-Data acquisition module, 42-Data analysis module, 43-Data storage module, 5-Power supply module, 6-Cable harness, 61-Cable socket, 62-Cable plug.
[0041] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.
[0043] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.
[0044] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0045] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.
[0046] Reference Figure 1 The first embodiment of the present invention provides an electrical contact status detection device for aviation cable harness 6, including: a power supply module 1, a current detection module 2, a voltage detection module 3, a data processing module 4, a power supply module 5, and a visualization module;
[0047] The data processing module 4 includes a data acquisition module 41, a data analysis module 42, and a data storage module 43.
[0048] The data processing module 4 is electrically connected to the current detection module 2 and the voltage detection module 3 respectively. The data processing module 4 is used to receive current data and voltage data, and determine the connection status of each cable in the cable harness 6 under test based on the current data and voltage data.
[0049] Among them, the power supply module 5 is a constant voltage power supply. The power supply module 5 is connected to the current detection module 2, the data acquisition module 41, the data storage module 43, the data analysis module 42 and the visualization module through power supply lines, so as to provide power to the current detection module 2, the data acquisition module 41, the data storage module 43, the data analysis module 42 and the visualization module respectively.
[0050] The signal receiving end of the data acquisition module 41 is electrically connected to the current detection module 2 and the voltage detection module 3 respectively. The signal output end of the data acquisition module 41 is electrically connected to the signal receiving end of the data storage module 43. The signal output end of the data storage module 43 is electrically connected to the signal receiving end of the data analysis module 42. The signal output end of the data analysis module 42 is electrically connected to the signal receiving end of the visualization module. The data acquisition module 41 and the data storage module 43 can be combined into a data acquisition and storage module.
[0051] The power module 1 is connected to the cable harness 6 under test via a power supply line and provides power to the cable harness 6 under test. The current detection module 2 is used to collect the current data of each cable in the cable harness 6 under test. The voltage detection module 3 is used to collect the voltage data of each cable in the cable harness 6 under test. The data acquisition module 41 is used to collect the current data and voltage data. The data storage module 43 is used to store the collected current data and voltage data. The data analysis module 42 analyzes the data collected and stored by the data acquisition module 41 and the data storage module 43. The visualization module is used to display the analysis results of the data analysis module 42.
[0052] like Figure 2 As shown, the output port of power module 1 is connected in series to the aviation plugs at both ends of the cable harness 6 under test, and the current detection module 2 is connected in series to the circuit where the cable harness 6 under test is located.
[0053] The power module 1 includes 2n+n(n-1) / 2 independent DC current sources and corresponding output ports. The output range of the DC current sources is 0 to 5A; where n is the number of wires in the cable harness 6.
[0054] The current detection module 2 specifically consists of 2n+n(n-1) / 2 miniature current clamps or current sensors 21. The current detection module 2 has a sampling range of 0 to 3000mA and an output range of 0 to 1V.
[0055] like Figure 3 As shown, the voltage detection module 3 is connected in parallel to the aviation plugs at both ends of the cable harness 6 under test.
[0056] The voltage detection module 3 includes n voltage sensors 32 and n pairs of leads 31. The voltage sensors 32 are connected in parallel with the cable harness 6 under test through the leads 31. The voltage sensor 32 has a range of -100 to 100V and an output range of -10V to 10V.
[0057] The data acquisition and storage module has a range of 0–80V and a sampling frequency of 0–100MHz. Depending on the characteristics of the acquired signal, different acquisition channels can select appropriate range and sampling frequency levels. Furthermore, the acquisition channels of the data acquisition and storage module are independent of each other, and the acquired signals will not interfere with each other. The acquisition channels are equipped with 10:1 attenuation probes, which can reduce the input signal by 10 times, making it suitable for measuring input signals that exceed the input range.
[0058] The power supply module 5 provides a constant 24V voltage to the data acquisition and storage module 43, the data storage module 42, and the visualization module via a power supply line.
[0059] The visualization module presents the analysis results of the data analysis module 42 in the form of text, numbers, and shapes through an LED screen.
[0060] Furthermore, for ease of understanding, please refer to Figure 4 , Figure 4 This is a flowchart illustrating a method for detecting the electrical contact status of an aviation cable harness 6 according to an embodiment of this application. The method can be executed by the aforementioned data processing module 4. The video processing method may include at least the following steps:
[0061] Acquire the current data detected by the current detection module 2 and the voltage data detected by the voltage detection module 3;
[0062] Based on the current data, the current value is obtained;
[0063] Based on the voltage data, obtain the voltage value;
[0064] The current and voltage values are compared with preset values to determine the fault type of the cable harness 6 under test.
[0065] Before acquiring the current data detected by the current detection module 2 and the voltage data detected by the voltage detection module 3, a constant current is applied to each wire in the cable harness 6, between any two wires, and between any wire and the shielding layer by the power supply module 1.
[0066] The specific steps for acquiring the current data detected by the current detection module 2 and the voltage data detected by the voltage detection module 3 are as follows: the current detection module 2 collects the current signal flowing through each conductor, between any two conductors, and between any conductor and the shielding layer in the cable harness 6; and the voltage detection module 3 collects the voltage signal at both ends of each conductor in the current harness.
[0067] Based on the current data, the current value is obtained; based on the voltage data, the voltage value is obtained; the voltage signal and current signal are collected by the data acquisition and storage module and sent to the data analysis module 42; the data analysis module 42 calculates and processes the collected voltage signal and current signal and compares them with the standard current of the current source, the standard value of the phase leakage current, the standard value of the cable contact resistance, etc., to determine the fault type of the cable harness 6 and quickly locate the faulty conductor; finally, the faulty conductor and its fault type can be displayed through the visualization module.
[0068] Furthermore, to facilitate understanding of the step of comparing the current and voltage values with preset values to determine the fault type of the cable harness 6 under test, please refer to [link to relevant documentation]. Figure 5 , Figure 5 This is a flowchart illustrating the method described in this application embodiment for comparing the current and voltage values with preset values to determine the fault type of the cable harness 6 under test. This method can be executed by the aforementioned data processing module 4. The video processing method may include at least the following steps:
[0069] S1. Compare the output current value I of the DC current source with the standard current value Ii; if the output current value I and the standard current value Ii are the same, proceed to step S2; if the output current value I and the standard current value Ii are different, it is determined to be a wire breakage fault, and proceed to step S4.
[0070] S2. Based on the voltage signal Ui, the current signal Ii, and the volume resistance Rd of a single conductor in the cable harness 6 under test, the contact resistance Ri is calculated using the following formula:
[0071] In the formula, Ui is the voltage across the i-th conductor in the cable harness 6 under test, and Rd is the volume resistance of a single conductor in the cable harness 6 under test. For a specific type of conductor, Rd is a fixed value.
[0072] S3. Based on the standard value R of the cable harness 6 to be tested, compare it with the contact resistance Ri. If Ri exceeds the value of R by 20%, it is determined that the contact condition is abnormal.
[0073] S4. Based on the comparison between the current signal Ii-j, the current signal Ii-d and the standard value Ib of the phase-to-phase leakage current, when Ii-j and Ii-d are greater than Ib, it is judged as an insulation failure fault, and the faulty conductor is marked. Here, Ii-j is the current signal flowing between the i-th conductor and the j-th conductor in the cable bundle 6 under test, and Ii-d is the current signal flowing between the i-th conductor and the shielding layer in the cable bundle 6 under test.
[0074] In this method, when a wire is determined to be faulty, its location is simultaneously marked as the faulty wire location, thus accurately locating the fault location while determining the type of wire fault.
[0075] Optionally, the data analysis module 42, data storage module 43, and visualization module based on this embodiment can be replaced by a signal transmitting terminal and a server. The signal transmitting terminal transmits the current data of each cable in the cable harness 6 under test collected by the current detection module 2 and the voltage data of each cable in the cable harness 6 under test collected by the voltage detection module 3 to the server.
[0076] The server can be a standalone physical server, a server cluster or distributed system composed of multiple physical servers, or a cloud server providing basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, CDN, and big data and artificial intelligence platforms. The user terminal 101 can be a smartphone, tablet, laptop, desktop computer, smart speaker, smartwatch, etc., but is not limited to these, and this application does not impose any restrictions.
[0077] Optionally, the server in this embodiment can be a cloud server. Cloud technology refers to a hosting technology that unifies a series of resources such as hardware, software, and networks within a wide area network or local area network to realize the calculation, storage, processing, and sharing of data.
[0078] Cloud technology is a collective term for network technologies, information technologies, integration technologies, management platform technologies, and application technologies applied to the cloud computing business model. It can form resource pools, providing flexible and convenient on-demand access. Cloud computing technology will become a crucial support. Backend services of technical network systems require substantial computing and storage resources, such as video websites, image websites, and many portal websites. With the rapid development and application of the internet industry, every item may have its own identification mark in the future, requiring transmission to backend systems for logical processing. Data at different levels will be processed separately, and various industry data will all require robust system support, which can only be achieved through cloud computing.
[0079] Cloud computing refers to the delivery and usage model of IT infrastructure, meaning obtaining necessary resources in an on-demand and easily scalable manner through a network. In a broader sense, cloud computing also refers to the delivery and usage model of services, meaning obtaining necessary services in an on-demand and easily scalable manner through a network. These services can be IT and software related, internet-related, or other services. Cloud computing is a product of the development and integration of traditional computer and network technologies such as grid computing, distributed computing, parallel computing, utility computing, network storage technologies, virtualization, and load balancing.
[0080] With the development of the internet, real-time data streams, and the diversification of connected devices, as well as the demands for search services, social networks, mobile commerce, and open collaboration, cloud computing has rapidly developed. Unlike previous parallel distributed computing, cloud computing will fundamentally revolutionize the entire internet model and enterprise management model.
[0081] The solution provided in this application relates to cloud computing in cloud technology. In certain specific scenarios, the current data of each cable in the cable harness 6 under test is collected by the current detection module 2, and the voltage data of each cable in the cable harness 6 under test is collected by the voltage detection module 3. This current and voltage data can be stored and processed. Specifically, the current and voltage values can be compared with preset values through a cloud computing platform to determine the fault type of the cable harness 6 under test.
[0082] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and that the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application.
Claims
1. A device for detecting the electrical connection status of aviation cable harnesses, characterized in that, It includes a power supply module, a current detection module, a voltage detection module, and a data processing module; The power module is used to connect to the cable harness under test and supply power to the cable harness under test; the current detection module is used to collect the current data of each cable in the cable harness under test; and the voltage detection module is used to collect the voltage data of each cable in the cable harness under test. The data processing module is electrically connected to the current detection module and the voltage detection module respectively. The data processing module is used to receive the current data and the voltage data, and determine the connection status of each cable in the cable harness under test based on the current data and the voltage data. The data processing module includes a data acquisition module and a data analysis module. The data acquisition module is electrically connected to the current detection module and the voltage detection module, respectively. The data acquisition module is used to acquire the current data and the voltage data. The data analysis module is used to determine the connection status of each cable in the cable harness under test based on the current data and the voltage data. The data processing module further includes a data storage module, which is connected to the data acquisition module and the data analysis module respectively. The data storage module is used to store the current data and voltage data acquired by the data acquisition module. The data acquisition module and the data storage module are merged into a single data acquisition and storage module, and the acquisition channels of the data acquisition and storage module are independent of each other. The data processing module is configured as follows: Acquire the current data detected by the current detection module and the voltage data detected by the voltage detection module; Based on the current data, the current value is obtained; Based on the voltage data, obtain the voltage value; The current and voltage values are compared with preset values to determine the fault type of the cable harness under test. Specific steps include: S1. Output current value I and standard current value based on DC current source I i Compare; if the output current value I is the same as the standard current value... I i If the values are the same, proceed to step S2; if the output current value I is the same as the standard current value... I i If the values are different, it is determined to be a disconnection fault, and proceed to step S4; S2. Based on voltage signal U i Current signal I i and the volume resistance of a single conductor in the cable harness under test. R d Calculate the contact resistance R i The specific calculation formula is as follows: In the formula, U i The first in the cable harness to be tested i Voltage across the two ends of the conductor R d The volume resistance of a single conductor in the cable harness under test is given. For a specific type of conductor, R d It is a fixed value; S3. Based on the standard value R of the cable harness under test and the contact resistance R i Compare, if R i If the R value exceeds 20%, it is considered an abnormal contact condition; S4. Based on current signal I i-j Current signal I i-d Standard value of interphase leakage current I b When comparing, I i-j and I i-d Greater than I b If the fault occurs, it is determined to be an insulation failure fault, and the faulty conductor is marked. I i-j The signal is the current signal flowing between the i-th and j-th conductors in the cable harness under test. I i-d It is the current signal flowing between the i-th conductor and the shielding layer in the cable bundle under test.
2. The aviation cable harness electrical connection status detection device according to claim 1, characterized in that: The power module includes 2n+n(n-1) / 2 independent DC current sources and corresponding output ports, where n is the number of cables in the cable harness under test.
3. The aviation cable harness electrical connection status detection device according to claim 1, characterized in that: The current detection module includes 2n+n(n-1) / 2 miniature current clamps or current sensors, where n is the number of cables in the cable harness to be tested.
4. The aviation cable harness electrical connection status detection device according to claim 1, characterized in that: The voltage detection module includes n voltage sensors and n pairs of leads. The voltage sensors are connected in parallel with the cable harness under test through the leads, where n is the number of cables in the cable harness under test.
5. The aviation cable harness electrical connection status detection device according to claim 1, characterized in that: The data processing module includes a 10:1 attenuation probe.
6. The aviation cable harness electrical connection status detection device according to claim 1, characterized in that: It also includes a power supply module, which is electrically connected to the current detection module, the voltage detection module and the data processing module respectively, and is used to supply power to the current detection module, the voltage detection module and the data processing module.
7. The aviation cable harness electrical connection status detection device according to claim 1, characterized in that: It also includes a visualization module, which is electrically connected to the data processing module.
8. A method for detecting the electrical connection status of aviation cable harnesses, characterized in that, A data processing module for an aviation cable harness electrical connection status detection device as described in any one of claims 1-7; the method includes: Acquire the current data detected by the current detection module and the voltage data detected by the voltage detection module; Based on the current data, the current value is obtained; Based on the voltage data, obtain the voltage value; The current and voltage values are compared with preset values to determine the fault type of the cable harness under test. The current data includes the current signal detected by the current detection module between any conductor, any two conductors, or any conductor and the shielding layer in the cable harness under test; the voltage data includes the voltage signal at both ends of any conductor in the cable harness under test by the voltage detection module.