A helicopter avionics system in situ test adapter and method
By designing an in-situ testing adapter for helicopter avionics systems, the signal conversion problem of mounting bracket-type electrical interfaces was solved, enabling reliable and convenient in-situ testing and improving the maintenance efficiency of helicopter avionics systems.
Patent Information
- Application Number
- CN202211496363.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-11-27
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2042-11-27
AI Technical Summary
Existing technologies make it difficult to achieve reliable signal transfer in in-situ testing of helicopter airborne electronic equipment, especially for mounting-type electrical interfaces, resulting in time-consuming and labor-intensive disassembly and assembly, as well as poor connection reliability.
Design an in-situ testing and adaptation device for helicopter avionics systems, including a mounting bracket adapter end and an airborne equipment adapter end, connected by an intermediate cable. Simulate the shape and electrical connection interface of the mounting bracket and airborne equipment to achieve signal conversion. An inverted installation and inclined support structure are used to ensure stable connection.
It enables reliable and convenient in-situ testing of airborne electronic equipment, improves maintenance efficiency, avoids structural interference, ensures reliable placement of electrical pins, and simplifies the operation process.
Smart Images
Figure CN115754382B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of electronic system testing, and relates to a testing device for airborne electronic systems, in particular to a helicopter avionics system in-situ testing adapter device and method. BACKGROUND
[0002] On a certain type of helicopter, in-situ testing is first used for airborne electronic systems, that is, connecting detection equipment to the interface on the machine for fault detection and isolation. The external signal interface of the electronic equipment on the machine mainly adopts two modes of circular aviation plug and electrical connection with mounting rack.
[0003] In the in-situ testing, the detection equipment needs to be connected while maintaining the normal connection of the original signals on the machine. For airborne electronic equipment connected to the electrical interface by mounting rack, the signal interface is internal and cannot be normally accessed. Usually, the equipment is removed from the mounting rack, and a test cable is connected to the electrical interface end of the mounting rack and the electrical interface end of the equipment respectively. This method is difficult to ensure reliable contact and is time-consuming and laborious to disassemble and assemble. SUMMARY
[0004] The purpose of the present application is to solve the above problems. The present application provides a helicopter avionics system in-situ testing adapter device and method, which can conveniently and reliably realize the connection of in-situ testing equipment and the machine, solve the signal switching problem of in-situ testing, and be suitable for switching the electrical interface of helicopter airborne electronic equipment in the form of mounting rack. Other electrical interface switching can also be used as a reference.
[0005] The technical scheme of the present application is as follows:
[0006] A helicopter avionics system in-situ testing adapter device, comprising a mounting rack adapter end, an airborne equipment adapter end and an intermediate cable; the mounting rack adapter end is a simulated airborne equipment having an external shape and an electrical connection interface adapted to the mounting rack; the airborne equipment adapter end is a simulated mounting rack having an external shape and an electrical connection interface adapted to the airborne equipment; the mounting rack adapter end and the airborne equipment adapter end are connected by the intermediate cable, the intermediate cable is a three-way cable, and the third end of the intermediate cable is connected to a detection equipment.
[0007] Further, the mounting rack is connected to the helicopter using the original installation interface, the signal is connected to the on-board communication system, and the mounting rack adapter end is installed on the mounting rack; the mounting rack adapter end has double-ended electrical connection ports, one end of the mounting rack adapter end is connected to the corresponding airborne equipment interface of the mounting rack, and the other end of the mounting rack adapter end is connected to the intermediate line.
[0008] Further, the mounting rack adapter end comprises a base and a simulated structure of airborne equipment, the simulated structure of airborne equipment is vertically fixed on the base, the mounting rack adapter end is installed upside down on the mounting rack, and the installed mounting rack interface is connected to the simulated electrical connection port of the airborne equipment.
[0009] Further, the airborne equipment is installed on the airborne equipment adapter end; the airborne equipment adapter end has double-end electrical connection ports, the airborne equipment is connected with one end of the electrical connection ports of the airborne equipment adapter end through the electrical connection ports of the mounting frame, and the other end of the electrical connection ports of the airborne equipment adapter end is connected with the intermediate cable.
[0010] Further, the airborne equipment installation comprises a support frame and an interface plate, the bottom of the support frame is horizontally supported on the ground, the upper surface of the support frame is provided with an inclined surface, the bottom of the inclined surface is the transversely arranged interface plate, and the airborne equipment is transversely arranged on the inclined surface of the support frame, and the electrical connection plate of the airborne equipment is connected with the interface plate.
[0011] Further, the intermediate cable comprises an on-aircraft end signal line, an equipment end signal line and a non-detection signal line, the non-detection signal line is directly connected between the mounting frame adapter end and the airborne equipment adapter end, the on-aircraft end signal line is connected between the mounting frame adapter end and the detection equipment, and the equipment end signal line is connected between the airborne equipment adapter end and the detection equipment.
[0012] A helicopter avionics system in-situ test adaptation method, using the helicopter avionics system in-situ test adaptation device, the airborne equipment is removed from the mounting frame and installed in the airborne equipment adapter end, then the mounting frame adapter end is installed in the on-aircraft mounting frame, the signals of the two ends of the intermediate cable are connected to the detection equipment, and the detection equipment is used to test the signals between the airborne equipment and the on-aircraft intercommunication system.
[0013] A helicopter avionics system in-situ test adaptation method, using the helicopter avionics system in-situ test adaptation device, the airborne equipment is removed from the mounting frame and installed in the airborne equipment adapter end, then the mounting frame adapter end is installed in the on-aircraft mounting frame, the non-detection signal line is used to connect the airborne equipment adapter end and the mounting frame adapter end, the on-aircraft end signal line is used to connect the MU interface of the mounting frame adapter end and the detection equipment, the equipment end signal line is used to connect the SS joint of the airborne equipment adapter end and the detection equipment, and finally the detection equipment is used to test the signals between the airborne equipment and the on-aircraft intercommunication system.
[0014] The helicopter avionics system in-situ test adaptation device has the following beneficial effects:
[0015] 1. The helicopter avionics system in-situ test adaptation device is used for in-situ test of airborne electronic equipment in the form of mounting frame on an aircraft, realizes reliable and convenient in-situ test signal switching, and improves the maintenance and support capability for the helicopter avionics system.
[0016] 2. The mounting bracket adapter end and airborne equipment adapter end of the present invention have stable and reliable structures and high compatibility with existing mounting brackets and airborne equipment. The inverted installation method of the mounting bracket adapter end avoids structural interference and achieves bottom fixation of the mounting bracket adapter end. The installation method of placing the airborne equipment horizontally on the airborne equipment adapter end makes the structure more stable and convenient to operate.
[0017] 3. The entire installation process of the device of the present invention can be completed by one person without the need for external tools. The installation process is quick and convenient, and it can ensure that the electrical pins are reliably in place, thus solving the problem of electrical signal conversion in in-situ testing. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the in-situ test signal connection of the present invention;
[0019] Figure 2 This is a schematic diagram of the adapter end of the in-situ testing adapter mounting bracket of the present invention;
[0020] Figure 3 This is a schematic diagram of the airborne equipment adapter end of the in-situ testing adapter device of the present invention. Detailed Implementation
[0021] 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 some embodiments of the present invention, and not all 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.
[0022] A helicopter avionics system in-situ testing and adaptation device includes a mounting bracket adapter, an airborne equipment adapter, and an intermediate cable. The mounting bracket adapter is a simulated airborne equipment with a shape and electrical connection interface adapted to the mounting bracket. The airborne equipment adapter is a simulated mounting bracket with a shape and electrical connection interface adapted to the airborne equipment. The mounting bracket adapter and the airborne equipment adapter are connected by an intermediate cable, which is a T-shaped cable, with the third end of the intermediate cable connected to a testing device.
[0023] The mounting bracket and the helicopter are connected using the original mounting interface. The signal connection machine is connected to the cross-linking system, and the mounting bracket adapter is installed on the mounting bracket. The mounting bracket adapter has a double-ended electrical connection port. One end of the mounting bracket adapter's electrical connection port is connected to the airborne equipment interface of the mounting bracket, and the other end of the mounting bracket adapter's electrical connection port is connected to the center line.
[0024] The mounting rack adapter end comprises a base and an airborne device simulation structure, the airborne device simulation structure is vertically fixed on the base, the mounting rack adapter end is installed upside down on the mounting rack, and the mounting rack interface is connected with the airborne device simulation electrical connection port after installation.
[0025] The airborne device is installed on the airborne device adapter end; the airborne device adapter end has double-end electrical connection ports, the airborne device is connected with one end of the electrical connection port of the airborne device adapter end through the electrical connection port of the mounting rack, and the other end of the electrical connection port of the airborne device adapter end is connected with the intermediate line.
[0026] The airborne device installation comprises a support frame and an interface plate, the bottom of the support frame is horizontally supported on the ground, the upper surface of the support frame is provided as an inclined surface, the bottom of the inclined surface is the transversely arranged interface plate, the airborne device is transversely arranged on the upper inclined surface of the support frame, and the electrical connection plate of the airborne device is connected with the interface plate.
[0027] The intermediate cable comprises an on-board end signal line, a device end signal line and a non-detection signal line, the non-detection signal line is directly connected between the mounting rack adapter end and the airborne device adapter end, the on-board end signal line is connected between the mounting rack adapter end and the detection device, and the device end signal line is connected between the airborne device adapter end and the detection device.
[0028] A helicopter avionics system in-situ test adaptation method, using the helicopter avionics system in-situ test adaptation device, the airborne device is removed from the mounting rack and installed in the airborne device adapter end, then the mounting rack adapter end is installed in the on-board mounting rack, the signals at both ends of the intermediate cable are connected to the detection device, and the detection device is used to test the signals between the airborne device and the on-board intercommunication system.
[0029] A helicopter avionics system in-situ test adaptation method, using the helicopter avionics system in-situ test adaptation device, the airborne device is removed from the mounting rack and installed in the airborne device adapter end, then the mounting rack adapter end is installed in the on-board mounting rack, the non-detection signal line is used to connect the airborne device adapter end and the mounting rack adapter end, the on-board end signal line is used to connect the MU interface of the mounting rack adapter end and the detection device, the device end signal line is used to connect the SS joint of the airborne device adapter end and the detection device, and finally the detection device is used to test the signals between the airborne device and the on-board intercommunication system.
[0030] Another embodiment of the present application will be described below with reference to the accompanying drawings.
[0031] When the helicopter airborne electronic device is tested in-situ, the signals needed to be monitored on the helicopter are connected to the portable detection device, and the signals not needed to be monitored are kept connected on the helicopter, and the test schematic is as shown in Figure 1 .
[0032] For airborne electronic equipment with rectangular electrical interface, the airborne equipment is directly pushed into the on-board mounting rack on the aircraft, and is convenient to disassemble and assemble. However, when in-situ testing, the electrical signal interface is internal, and the external test cable cannot be accessed. The usual method to solve this problem is to remove the airborne equipment from the mounting rack, and connect the test cable to the electrical interface on the airborne equipment mounting rack and the electrical interface of the airborne equipment respectively. However, this connection method has the following problems:
[0033] (1) The connector is very laborious to manually plug and unplug, and tools are needed when unplugging;
[0034] (2) The connection reliability is poor, and the pin is often not in place;
[0035] (3) The disassembly and assembly process is time-consuming and complex, and sometimes even requires multiple people to cooperate.
[0036] The present application designs an in-situ test adapter, which is composed of a mounting rack adapter end and an airborne equipment adapter end, as shown in Figure 2 and Figure 3 The mounting rack adapter end is used to be placed on the airborne equipment mounting rack, and the airborne equipment adapter end is used to place the airborne equipment. The mounting rack adapter end and the airborne equipment adapter end can be flexibly designed to access and exit the test signal through the intermediate cable, and the signals to be monitored are led out to the detection equipment in a tee way.
[0037] In use, the airborne equipment is removed from the aircraft and installed in the airborne equipment adapter end of the device. The mounting rack adapter end of the device is installed in the on-board mounting rack, and the intermediate cable is connected to the detection equipment. The entire installation process can be completed by one person without the need for external tools, and the installation process is quick and convenient, and can ensure that the electrical pin is reliably in place, solving the problem of electrical signal switching during in-situ testing.
[0038] The airborne system in-situ test adapter composition, the airborne system in-situ test adapter access method, and the airborne system in-situ test adapter appearance of the present application are all new designs.
[0039] The above is only a specific embodiment of the present application, which is described in detail. The non-exhaustive part is a conventional technology. However, the protection scope of the present application is not limited to this. Any changes or replacements within the technical scope disclosed by the present application can be easily thought of by those skilled in the art, and should be covered within the protection scope of the present application. The protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A helicopter avionics system in situ test adapter apparatus, characterized by, The adapter includes a mounting rack adapter end, an airborne device adapter end and an intermediate cable; the mounting rack adapter end is an analog airborne device with an outer shape and an electrical connection interface adapted to the mounting rack; the airborne device adapter end is an analog mounting rack with an outer shape and an electrical connection interface adapted to the airborne device; The mounting rack adapter end and the airborne device adapter end are connected by the intermediate cable, which is a three-way cable, and the third end of the intermediate cable is connected to the detection device; The mounting rack is connected to the helicopter using the original mounting interface, and the signal is connected to the on-board communication system; the mounting rack adapter end is installed on the mounting rack; the mounting rack adapter end has a double-ended electrical connection port, one end of which is connected to the on-board device interface of the mounting rack, and the other end is connected to the intermediate line; The mounting rack adapter end includes a base and an airborne device simulation structure, which is vertically fixed on the base; the mounting rack adapter end is inverted and installed on the mounting rack, and the installed mounting rack interface is connected to the airborne device simulation electrical connection port; The airborne device is installed on the airborne device adapter end; the airborne device adapter end has a double-ended electrical connection port, and the airborne device is connected to one end of the electrical connection port of the airborne device adapter end through the electrical connection port of the mounting rack, and the other end of the electrical connection port of the airborne device adapter end is connected to the intermediate line; The airborne device installation includes a support frame and an interface plate; the bottom of the support frame is horizontally supported on the ground, the upper surface of the support frame is inclined, and the bottom of the inclined surface is a horizontally placed interface plate; the airborne device is horizontally placed on the inclined surface of the support frame, and the electrical connection plate of the airborne device is connected to the interface plate.
2. A test adapter for in situ testing of a helicopter avionics system according to claim 1, characterized in that The intermediate cable includes an on-board signal line, a device end signal line and a non-detection signal line; the mounting rack adapter end and the airborne device adapter end are directly connected by the non-detection signal line; the on-board signal line connects the mounting rack adapter end and the detection device; and the device end signal line connects the airborne device adapter end and the detection device.
3. A method for in-situ testing of a helicopter avionics system using a device for in-situ testing of a helicopter avionics system according to claim 1 or 2, characterized in that After the airborne device is removed from the mounting rack and installed in the airborne device adapter end, the mounting rack adapter end is inverted and installed in the on-board mounting rack; the signals at both ends of the intermediate cable are connected to the detection device; and the detection device is used to test the signals between the airborne device and the on-board communication system.
4. A method for adapting a helicopter avionics system for in situ testing using a helicopter avionics system in situ testing adaptor as claimed in claim 2, wherein, Using the above-mentioned helicopter avionics system in-situ test adapter, after the airborne device is removed from the mounting rack and installed in the airborne device adapter end, the mounting rack adapter end is inverted and installed in the on-board mounting rack; the non-detection signal line is used to connect the airborne device adapter end and the mounting rack adapter end; the on-board signal line is used to connect the MU interface of the mounting rack adapter end and the detection device; the device end signal line is used to connect the SS joint of the airborne device adapter end and the detection device; and finally the detection device is used to test the signals between the airborne device and the on-board communication system.