CN112666412A - Airplane bus cable testing device and method - Google Patents
Airplane bus cable testing device and method Download PDFInfo
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Abstract
The airplane bus cable testing equipment comprises a portable case, wherein a detection host machine and a detection sub machine are arranged in the case, and the detection host machine comprises a power supply module, a man-machine interaction interface, a comprehensive testing module, a host machine communication module and a testing port. The detection sub-machine comprises at least one bus test signal transmitter, the bus test signal transmitter comprises a power supply module, a signal generation module, a sub-machine communication module and a test signal transmission port, during testing, a test instruction is input through a human-computer interaction interface of the detection main machine, the signal generation module of the detection sub-machine generates a matched standard test signal, the comprehensive test module analyzes the test signal to obtain a test result, and the test result is transmitted to the human-computer interaction interface to be displayed.
Description
Technical Field
The invention relates to an aircraft manufacturing technology, in particular to aircraft bus cable testing equipment and a testing method.
Background
With the continuous progress and application of scientific technologies such as computers, network communication and the like, modern avionics systems are rapidly developed towards the direction of integration, modularization and intellectualization, and one of key supporting technologies for realizing the development targets is an aviation bus technology. Currently, the aviation bus field defines a series of standards and specifications, such as HB6096 bus standard, GJB289A bus, RS422 bus, etc., which are widely and well-established. The novel aircraft system is complex in structure, large in internal and external data transmission quantity and high in real-time requirement, so that an aviation bus system which is complex and high in crossing degree is formed by adopting a multi-bus multiplexing mode. In order to ensure the correctness and reliability of bus data transmission, the characteristics of various bus cables on the airplane need to be tested.
Because various buses have great differences in the aspects of electrical characteristics, topological structures, protocol standards and the like, the conventional bus cable test equipment has single function and extremely strong specificity, and is usually only used for testing a certain specific bus. In order to meet the test requirements of multiple types of buses of the airplane, a plurality of traditional special bus test devices need to be purchased, the investment is high, the use is not convenient, and the large occupied space of the plurality of test devices is not convenient for the on-board use. In addition, due to the fact that the topological structure of the aircraft bus network is complex, the ports of the bus cables are distributed at the installation positions of all kinds of airborne equipment, and the conventional special bus detection equipment needs to be connected with the two ends of the detected cables at the same time, is only suitable for the working condition that the two ends of the wire harness are movable and can be connected with the equipment at the same time, and does not meet the use requirement of carrying out in-situ test on the long-distance bus cables at the arranged positions in the aircraft environment.
Disclosure of Invention
In order to meet the production requirements of aircraft development and overcome the problems in the prior art, the invention aims to provide the aircraft bus cable test equipment and the test method, which can be simultaneously suitable for the characteristic test of GJB289A bus cables, HB6096 bus cables and RS422 bus cables in the aircraft environment.
An aircraft bus cable test device is characterized by comprising a portable case, a test host machine and a test sub-machine are arranged in the case, the test host machine comprises a power supply module, a man-machine interaction interface, a comprehensive test module, a host machine communication module and a test port, the test sub-machine comprises at least one bus test signal transmitter, the bus test signal transmitter comprises a power supply module, a signal generation module, a sub-machine communication module and a test signal transmitting port, the man-machine interaction interface of the test host machine is used for inputting a test instruction and checking a test result, the man-machine interaction interface comprises a display screen and an operation key, the comprehensive test module of the test host machine is used for receiving and analyzing the test instruction and the test result, transmitting the test instruction to the sub-machine communication module of the test sub-machine through the host machine communication module, displaying the test result through the man-machine interaction interface, and the test port, the test port is also connected with one end of the tested bus cable, the signal generation module for detecting the submachine generates a standard test signal according to the test instruction transmitted by the submachine communication module, and transmits the standard test signal to the other end of the tested bus cable through the test signal transmitting port.
The testing port of the detecting host machine comprises a GJB289A bus cable testing port and a serial bus cable testing port which are parallel, the detecting submachine comprises a GJB289A bus testing signal transmitter and a serial bus testing signal transmitter which are parallel, and the GJB289A bus testing signal transmitter and the serial bus testing signal transmitter respectively comprise a power supply module, a signal generating module, a submachine communication module and a testing signal transmitting port which are matched.
The application also provides an aircraft bus cable test method, and the aircraft bus cable test equipment is characterized by comprising the following steps: 1) the method comprises the steps of carrying out self-checking on aircraft bus cable testing equipment, connecting a testing port of a testing host machine with a testing signal sending port of a testing submachine by using a bus self-checking cable, inputting a self-checking instruction through a man-machine interaction interface, checking a self-checking result, and starting testing on the bus cable when the self-checking is qualified; 2) when the bus cable in the GJB289A bus network on the airplane is tested, the coupler at one end of the tested GJB289A bus cable is connected with the test port of the GJB289A bus cable on the detection host through one GJB289A bus test cable, and then the coupler at the other end of the tested GJB289A bus cable is connected with the test signal sending port of the GJB289A bus test signal sender through another GJB289A bus test cable; 3) when testing a serial bus cable on an airplane, connecting one end of the tested serial bus cable with a serial bus cable testing port on a detection host, and connecting the other end of the tested serial bus cable with a testing signal sending port of a serial bus testing signal sender; 4) during testing, a test instruction is input through a human-computer interaction interface of the detection host, the comprehensive test module of the detection host receives and analyzes the test instruction, the test instruction is transmitted to the submachine communication module of the detection submachine through the host communication module, the signal generation module of the detection submachine generates a matched standard test signal according to the test instruction transmitted by the submachine communication module, the standard test signal is transmitted to one end of a tested bus cable through the test signal transmitting port, the test port of the detection host receives the test signal through the other end of the bus cable and transmits the test signal to the comprehensive test module of the detection host, the comprehensive test module analyzes the test signal to obtain a test result, and the test result is transmitted to the human-computer interaction interface to be displayed.
The beneficial effect of this application lies in: 1) the airplane bus cable test equipment effectively solves the problems of single function, poor expandability and the like of the traditional special bus test equipment, and can meet the test use requirements of the airplane environment on the characteristics of GJB289A buses, HB6096 buses and RS422 buses; 2) the airplane bus cable testing equipment adopts unified hardware resources and is light and portable, and the detection host machine and the detection sub machine adopt a combinable and separable structural design, so that a single person can be tested in an airplane environment with a large bus cable distribution area, and the in-situ detection requirement of the airplane bus cable can be met; 3) the airplane bus cable test equipment can complete quantitative tests on various parameters of GJB289A buses, HB6096 buses and RS422 buses, and can quickly and accurately judge and determine whether a cable network is normal and the type and the part of a cable system physical layer which has a fault; 4) the detection host machine and the detection sub-machine are powered by lithium batteries, have no special power supply requirement on a use site, and are suitable for detecting the aircraft bus cable under different working conditions; 5) the detection sub machine storage bin designed on the detection host machine can be used for realizing the storage function of the detection sub machine, and the charging port designed at the bottom can charge the detection sub machine while storing, so that the detection sub machine is convenient and quick; 6) the detection host has a good man-machine interaction function, can provide clear operation instructions for operators, can automatically execute a test program according to software setting, and can display test data and an evaluation result in real time, so that inaccurate test caused by human errors is avoided, and the test efficiency and the test quality are effectively improved.
The present application is described in further detail below with reference to the accompanying drawings of embodiments.
Drawings
FIG. 1 is a schematic block diagram of an aircraft bus cable test apparatus.
FIG. 2 is a diagram of a test host panel.
FIG. 3 is a diagram of a panel of a detector.
Fig. 4 is a schematic block diagram of a device self-test connection.
Fig. 5 is a schematic block diagram of a test connection of a GJB289A bus cable.
FIG. 6 is a block diagram of a serial bus cable test connection.
The numbering in the figures illustrates: 1GJB289A bus cable test port; 2 serial bus cable test port; 3, displaying a screen; 4, detecting a control key; 5, detecting a host electric quantity indicator lamp and a charging port 6; 7GJB289A bus test signal transmitter storage bin; 8 serial bus test signal transmitter storage bin; 9 an accessory storage bin; 10 brightness adjusting button; 11 a detection switch; 12 a test signal transmission port; 13 detecting a sub machine electric quantity indicator lamp; 14 a power switch; 15 charging port.
Detailed Description
The utility model provides an aircraft bus cable test equipment adopts light-duty portable structural design, contains and detects the host computer and detects the submachine, detects the host computer and can make up, separable with detecting the submachine. After separation, remote in-situ testing of the long-distance bus cable at the arranged position on the airplane or other equipment can be realized. The principle of the airplane bus cable test equipment is shown in fig. 1, the detection host comprises a power supply module, a man-machine interaction interface, a comprehensive test module, a host communication module and a test port, and the test port of the detection host comprises a GJB289A bus cable test port and a serial bus cable test port which are arranged in parallel. The detection submachine comprises a GJB289A bus test signal transmitter and a serial bus test signal transmitter which are arranged in parallel. The GJB289A bus test signal transmitter and the serial bus test signal transmitter respectively comprise a matched power supply module, a signal generation module, a submachine communication module and a test signal transmitting port.
The power supply module of the detection host machine is externally connected with 220V alternating current through a charging port 6 on the panel for charging, other modules of the detection host machine and the power supply module of the bus test signal transmitter are provided for use after charging is finished, and a detection host machine electric quantity indicator lamp 5 arranged on the panel of the detection host machine and a detection sub machine electric quantity indicator lamp 13 arranged on the panel of the detection sub machine can respectively display the current electric quantity states of the detection host machine and the detection sub machine; the man-machine interface is an interactive interface between an operator and the system and comprises a display screen 3, a detection control key 4 and a brightness adjusting button 10. The testing instruction can be set through software prompts of the detection control key 4 and the display screen 3 interface, the testing instruction is sent to the comprehensive testing module, and the display screen 3 interface can also display the testing process, the testing data, the testing result and the like. The brightness of the display screen 3 can be adjusted through the brightness adjusting button 10; the comprehensive test module receives and analyzes the test instruction, relevant parameter configuration is completed, the test instruction is transmitted to the submachine communication module of the detection submachine through the host computer communication module, and the host computer communication module and the submachine communication module have two modes of wireless communication and wired communication.
A submachine communication module of the detection submachine sends the received test instruction to a signal generation module; the signal generating module generates a matched standard test signal according to the test requirement, and transmits the standard test signal to one end of a tested bus cable through the test signal transmitting port 12; a test port of the detection host collects a receiving signal through the other end of the tested cable and sends the receiving end signal to the comprehensive test module; and the comprehensive test module compares the receiving end signal with the standard test signal, tests and analyzes the signal, and sends the result to a human-computer interaction interface for displaying.
Detecting a panel diagram of the host machine and detecting a panel of the sub machine, as shown in fig. 2 and 3:
the GJB289A bus cable test port 1 is an access point of a GJB289A bus cable in a detection host.
And the serial bus cable test port 2 is an access point shared by the HB6096 bus cable and the RS422 bus cable on the detection host.
The display screen 3 belongs to a man-machine interaction interface of the detection host, and an operator can set self-detection, test execution and parameters on the display screen 3 interface through software and can check a test process, test data and the like.
The detection control key 4 belongs to a man-machine interaction interface of a detection host machine and consists of two function keys of initialization and self-checking. The initialization key is used for initializing and calibrating equipment, an initialization working mode is entered by pressing the key once, an indicator lamp of the key displays yellow, the key is pressed again to set parameters according to default values, the indicator lamp displays green after the setting is completed, an exit mode is pressed again, and the indicator lamp is turned off; the 'self-checking' button is used for starting self-checking by a key of equipment, once presses this key and gets into 'self-checking' mode of operation, and the pilot lamp of button self-band shows yellow, presses this key once more and carries out the self-checking operation, and the green scintillation of pilot lamp among the self-checking process, after the self-checking is accomplished, if show green through the pilot lamp, do not show red through the pilot lamp, relevant data information is looked over at 3 interfaces of accessible display screen, presses once more after the self-checking, withdraws from the mode, and the pilot lamp goes out.
Detect host computer electric quantity pilot lamp 5 and show the current electric quantity condition of detection host computer, show green when the electric quantity is sufficient, show red when the electric quantity is not enough, green scintillation when charging.
Charging port 6 belongs to the power module who detects the host computer, and accessible connecting accessory charger charges for detecting the host computer, detects the green scintillation of host computer electric quantity pilot lamp 5 during charging.
The GJB289A bus test signal transmitter storage bin 7 and the serial bus test signal transmitter storage bin 8 are used for storing a GJB289A bus test signal transmitter and a serial bus test signal transmitter, respectively. The bottom of the detection sub-machine is provided with a charging connecting terminal, and the power module of the detection sub-machine is charged through the power module of the detection main machine while the detection sub-machine is accommodated.
The accessory storage bin 9 is used for storing random accessories, and the accessories comprise one GJB289A bus self-test cable, one serial bus self-test cable, one charger and two GJB289A bus test cables.
The brightness adjustment button 10 can manually adjust the display brightness of the display screen 3, the brightness of the key indicated by "+" is increased, and the brightness of the key indicated by "-" is decreased.
The detection switch 11 can control the detection host to power on and off.
The test signal sending port 12 is an access point of the tested cable in the testing sub-machine.
Detect sub-machine electric quantity pilot lamp 13 and show and detect the current electric quantity condition of sub-machine and the condition of charging, show green when the electric quantity is sufficient, show red when the electric quantity is not enough, green scintillation when charging.
The power switch 14 can control the detection sub-machine to power up and power down.
The charging port 15 is arranged below the detection slave unit, and when the detection slave unit is inserted into the GJB289A bus test signal transmitter accommodating chamber 7 or the serial bus test signal transmitter accommodating chamber 8 of the detection master unit, the detection slave unit is automatically charged in the accommodating chambers.
The aircraft bus cable testing method is carried out by using aircraft bus cable testing equipment. The specific detection steps comprise the following modes:
1) device self-test mode
Opening the accessory storage bin 9 of the detection host, taking out the GJB289A bus self-test cable and the serial bus self-test cable, and connecting the detection host, the detection sub-machine and the bus self-test cable according to the diagram of fig. 4. The equipment is started by turning on the detection switch 11 for detecting the master unit and the power switch 14 for detecting the slave unit. The equipment self-test comprises two modes of software starting self-test and one-key starting self-test.
a) Software startup self-test
After the equipment is started, double-click is carried out on 'bus cable characteristic detection software' on an interface of a display screen 3 of the detection host computer to start the software, a user name and a password are input in a login interface, and a home page of the test system is entered. Clicking a self-detection option at the top end of the main page, and entering a software starting self-detection page, wherein the page comprises three selectable options, namely: the hardware self-test, the GJB289A bus cable test function self-test and the serial port bus cable test function self-test can be selected by an operator respectively or selected completely. After the selection is finished, clicking a 'start self-checking' button below a 'software start self-checking' page, entering a self-checking mode, and displaying the self-checking progress and data in real time by a software interface at the moment. After the self-checking is completed, according to the detection result, the software interface prompts that the self-checking is passed or not passed, and meanwhile, the option of checking the self-checking information appears at the lower right corner of the interface. Clicking a button of checking self-checking information to check related data corresponding to the detection items, wherein the self-checking data file is automatically stored under an appointed path, and the file name is default: year-month-day-time-self-check-serial number. The operator can click the 'save as' button of the file to change the name or the storage path.
b) One-key start-up self-test
After the equipment is started, a 'self-checking' key of a detection control key 4 on a detection host machine is pressed, the system enters a 'self-checking' working mode, an indicator light of the key displays yellow, the key is pressed for more than 3 seconds at the moment, the self-checking mode can be exited, and the indicator light is turned off. After entering the self-checking mode (the indicator light shows yellow), the self-checking button is pressed again to carry out self-checking operation, the system carries out self-checking according to the set self-checking content, in the self-checking process, the indicator light flashes in green, and the self-checking cannot be interrupted manually during the self-checking period. After the self-checking is finished, the indicating lamp displays green when the self-checking is passed, and the indicating lamp displays red when the self-checking is failed. And pressing the self-checking key again to exit the self-checking mode, and turning off the indicating lamp. An operator can check the data of one-key starting self-checking according to the requirement, and the specific steps are as follows: double-click detection software starting up bus cable characteristic detection software on the interface of the host computer display screen 3, inputting a user name and a password on a login interface, and entering a test system home page. Clicking a self-checking option at the top end of the main page, entering a self-checking result query page, wherein an automatically stored self-checking data file list is arranged in the page, and the file name is default: year-month-day-time-self-check-serial number. The operator can also change the name or the storage path according to the 'save as' key of the clicked file.
And the bus cable can be tested only when the self-test is qualified. When the bus cable in the GJB289A bus network on the airplane is tested, the coupler at one end of the tested GJB289A bus cable is connected with the test port of the GJB289A bus cable on the detection host through one GJB289A bus test cable, and then the coupler at the other end of the tested GJB289A bus cable is connected with the test signal sending port of the GJB289A bus test signal sender through another GJB289A bus test cable. When testing the serial bus cable on the airplane, one end of the serial bus cable to be tested is connected with the serial bus cable test port on the detection host, and the other end of the serial bus cable to be tested is connected with the test signal sending port of the serial bus test signal sender.
2) The GJB289A bus cable test operates as follows:
and opening the accessory storage bin 9 in the detection host, and taking out two GJB289A bus test cables. The GJB289A bus test signal transmitter accommodating bin 7 is opened, and the internal GJB289A bus test signal transmitter is taken out. The detection host, the GJB289A bus test signal transmitter, the GJB289A bus test cable and the coupler in the GJB289A bus network are connected according to the figure 5. And opening the detection switch 11 of the detection host and the power switch 14 of the GJB289A bus test signal transmitter to start the equipment. After the equipment is started, double-click is carried out on 'bus cable characteristic detection software' on an interface of a display screen 3 of the detection host computer to start the software, a user name and a password are input in a login interface, and a home page of the test system is entered. Clicking a 'GJB 289A bus cable test' option at the top end of the main page, entering a 'GJB 289A bus cable test' page, clicking a 'network connection' button above the page, connecting the equipment into an airplane bus network, displaying 'connection success' after connection is successful, and at the moment, changing the 'cable test' button below the page into an optional key; if the connection fails, the software interface displays possible fault reasons and troubleshooting methods, and helps an operator to deal with the problems. After the connection is successful, clicking a cable test button below the page to enter a cable test page, wherein the selectable test contents comprise the following items:
The operator clicks on the page for the item being tested, or clicks on the "full pick" selection. Clicking the 'start test' to enter a GJB289A bus cable test mode, and clicking a 'stop' button if the test is interrupted. And in the testing process, the test items, the test progress and the test data are displayed on the software interface in real time. After the test is finished, the 'test is finished', and at the moment, the test result and the data can be directly checked on a software interface. The test data can be automatically stored under the designated path, and the default of the file name is as follows: year-month-day-time-GJB 289A-serial number. The operator can click the 'save as' button of the file to change the name or the storage path. An operator can check historical test data according to needs, and the specific steps are as follows: and entering a main page of the test system. Clicking the 'GJB 289A bus cable test' option at the top of the main page, entering a 'historical data query' page, wherein a stored test data file list is arranged in the page, and a user can click and view the test data file list.
3) The testing operation on the HB6096 bus cable is as follows:
and opening a serial bus test signal transmitter containing bin 8 in the detection host, and taking out the internal serial bus test signal transmitter. The detection host, the serial bus test signal transmitter and the HB6096 bus cable to be tested are connected according to FIG. 6. The turn-on detection host detection switch 11 and the power switch 14 of the serial bus test signal transmitter start the device. After the equipment is started, double-click is carried out on 'bus cable characteristic detection software' on an interface of a display screen 3 of the detection host computer to start the software, a user name and a password are input in a login interface, and a home page of the test system is entered. Clicking the 'HB 6096 bus cable test' option at the top end of the main page, and entering into a 'HB 6096 bus cable test' page. Clicking a 'cable test' button below the page to enter a 'cable test' page, wherein the selectable test contents comprise the following items:
The operator clicks the item to be tested on the page, and clicks the 'start test', the system enters the test mode, and at this time, if the test is to be interrupted, the 'stop' button can be clicked. And in the testing process, the test items, the test progress and the test data are displayed on the software interface in real time. After the test is finished, the 'test is finished', and at the moment, the test result and the data can be directly checked on a software interface. The test data can be automatically stored under the designated path, and the default of the file name is as follows: year-month-day-time-ARINC 429-number. The operator can click the 'save as' button of the file to change the name or the storage path. An operator can check historical test data according to needs, and the specific steps are as follows: and entering a main page of the test system. Clicking an option of 'HB 6096 bus cable test' on the top of the main page, entering a 'historical data query' page, wherein a stored test data file list is arranged in the page, and a user can click and view the page.
4) The RS422 bus cable test operates as follows:
and opening a serial bus test signal transmitter containing bin 8 in the detection host, and taking out the internal serial bus test signal transmitter. The test host, the serial bus test signal transmitter and the RS422 bus cable to be tested are connected according to FIG. 6. The device is started by opening the detection switch 11 of the detection host and the power switch 14 of the serial bus test signal transmitter. After the equipment is started, double-click is carried out on 'bus cable characteristic detection software' on an interface of a display screen 3 of the detection host computer to start the software, a user name and a password are input in a login interface, and a home page of the test system is entered. Clicking the RS422 bus cable test option at the top of the main page, and entering an RS422 bus cable test page. Clicking a 'cable test' button below the page to enter a 'cable test' page, wherein the selectable test contents comprise the following items:
The operator clicks the item to be tested on the page, and clicks the 'start test', the system enters the test mode, and at this time, if the test is to be interrupted, the 'stop' button can be clicked. And in the testing process, the test items, the test progress and the test data are displayed on the software interface in real time. After the test is finished, the 'test is finished' is displayed, and at the moment, the test result can be directly checked on the interface. The test data can be automatically stored under the designated path, and the default of the file name is as follows: year-month-day-time-RS 422-serial number. The operator can click the 'save as' button of the file to change the name or the storage path. An operator can check historical test data according to needs, and the specific steps are as follows: and entering a main page of the test system. Clicking an RS422 bus cable test option at the top of the main page, entering a historical data query page, wherein a stored test data file list is arranged in the page, and a user can click and view the page.
Claims (6)
1. The aircraft bus cable test equipment is characterized by comprising a portable case, wherein a test host machine and a test sub-machine are arranged in the case, the test host machine comprises a power supply module, a man-machine interaction interface, a comprehensive test module, a host machine communication module and a test port, the test sub-machine comprises at least one bus test signal transmitter, the bus test signal transmitter comprises a power supply module, a signal generation module, a sub-machine communication module and a test signal transmission port, the man-machine interaction interface of the test host machine is used for inputting test instructions and checking test results, the display screen and an operation key are arranged, the comprehensive test module of the test host machine is used for receiving and analyzing the test instructions and the test results, transmitting the test instructions to the sub-machine communication module of the test sub-machine through the host machine communication module, and displaying the test results through the man-machine interaction, the test port of the detection host machine is connected with the comprehensive test module, the test port is also connected with one end of the tested bus cable, the signal generation module of the detection submachine generates a standard test signal according to a test instruction transmitted by the submachine communication module, and transmits the standard test signal to the other end of the tested bus cable through the test signal transmitting port.
2. The aircraft bus cable test device as claimed in claim 1, wherein the test port of the test master comprises a parallel GJB289A bus cable test port and a serial bus cable test port, the test slave comprises a parallel GJB289A bus test signal transmitter and a serial bus test signal transmitter, and the GJB289A bus test signal transmitter and the serial bus test signal transmitter respectively comprise a matched power supply module, a signal generation module, a slave communication module and a test signal transmitting port.
3. An aircraft bus cable test device according to claim 1 or 2, wherein a man-machine interface of the detection host, a GJB289A bus cable test port, a serial bus cable test port, and two parallel detection sub-machine storage bins and accessory storage bins are arranged on a panel of the portable chassis.
4. An aircraft bus cable test device according to claim 3, wherein a charging connection terminal is arranged in the detection sub-machine storage bin.
5. An aircraft bus cable test device as claimed in claim 1 or 2, wherein the chassis panel of the detection sub-machine is provided with a test signal sending port, a power switch, a power indicator light and a charging port.
6. An aircraft bus cable test method using the aircraft bus cable test apparatus of claim 1 or 2 or 3 or 4 or 5, characterized by comprising: 1) the method comprises the steps of carrying out self-checking on aircraft bus cable testing equipment, connecting a testing port of a testing host machine with a testing signal sending port of a testing submachine by using a bus self-checking cable, inputting a self-checking instruction through a man-machine interaction interface, checking a self-checking result, and starting testing on the bus cable when the self-checking is qualified; 2) when the bus cable in the GJB289A bus network on the airplane is tested, the coupler at one end of the tested GJB289A bus cable is connected with the test port of the GJB289A bus cable on the detection host through one GJB289A bus test cable, and then the coupler at the other end of the tested GJB289A bus cable is connected with the test signal sending port of the GJB289A bus test signal sender through another GJB289A bus test cable; 3) when testing a serial bus cable on an airplane, connecting one end of the tested serial bus cable with a serial bus cable testing port on a detection host, and connecting the other end of the tested serial bus cable with a testing signal sending port of a serial bus testing signal sender; 4) during testing, a test instruction is input through a human-computer interaction interface of the detection host, the comprehensive test module of the detection host receives and analyzes the test instruction, the test instruction is transmitted to the submachine communication module of the detection submachine through the host communication module, the signal generation module of the detection submachine generates a matched standard test signal according to the test instruction transmitted by the submachine communication module, the standard test signal is transmitted to one end of a tested bus cable through the test signal transmitting port, the test port of the detection host receives the test signal through the other end of the bus cable and transmits the test signal to the comprehensive test module of the detection host, the comprehensive test module analyzes the test signal to obtain a test result, and the test result is transmitted to the human-computer interaction interface to be displayed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011473149.3A CN112666412A (en) | 2020-12-15 | 2020-12-15 | Airplane bus cable testing device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011473149.3A CN112666412A (en) | 2020-12-15 | 2020-12-15 | Airplane bus cable testing device and method |
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| CN113866674A (en) * | 2021-09-14 | 2021-12-31 | 北京二十一世纪科技发展有限公司 | Multi-core cable testing method and device, electronic equipment and storage medium |
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