A portable telemetering detector

Abstract

This invention discloses a portable telemetry testing instrument, comprising a portable ruggedized computer platform, integrating a telemetry receiving antenna, a down-conversion module, an intermediate frequency (IF) baseband module, and an airborne signal simulation module within the platform; and a test unit running on the platform, the test unit including at least a PCM receiving and demodulation module and a status detection and data analysis module; the down-conversion module and the IF baseband module are used to down-convert the radio frequency signal received by the telemetry receiving antenna to an IF frequency and perform baseband processing to recover the PCM data stream. This invention, through modular integration design, integrates traditional rack-mounted equipment into a single portable device, solving the problems of large size, complex deployment, and poor field adaptability of traditional equipment, realizing a shift from "fixed deployment" to "mobile support," and providing strong technical support for on-site maintenance, rapid testing, and emergency response of airborne telemetry equipment.

Description

Technical Field

[0001] This invention relates to the field of airborne telemetry technology, and in particular to a portable telemetry detector. Background Technology

[0002] Currently, airborne telemetry systems are an important technical means to provide data support for real-time monitoring of aircraft status, flight assistance command, debriefing and training support, while telemetry testing equipment provides ground support for airborne telemetry systems in terms of daily maintenance and on-site testing.

[0003] With the increasing demands on telemetry systems from fields such as aviation and aerospace, and the development trends of independent control, miniaturization, and intelligence, the technical limitations of traditional telemetry and detection equipment are becoming increasingly prominent, specifically including the following aspects.

[0004] (1) Traditional testing equipment is bulky and inconvenient to deploy. Traditional telemetry and detection equipment typically employs rack-mounted or desktop structures, resulting in large size, heavy weight, and the need for fixed installation sites. In the field environment of flight testing, the equipment must be transported to designated locations, making the transportation and deployment process complex and slow in response. This fails to meet the demands for rapid field testing and mobile support.

[0005] (2) The detection function is limited and the integration is low. Traditional telemetry and detection equipment is often designed for a single function, such as PCM signal analyzers, video signal analyzers, and bus data analyzers. Multiple devices need to be carried during field testing, which is complicated to connect and operate. Moreover, the formats of various data records are not uniform, and the data between different devices cannot be correlated and analyzed, thus failing to form a complete system-level detection capability.

[0006] (3) Insufficient adaptability to different work scenarios Traditional telemetry detection equipment can only passively receive and process telemetry data. It cannot actively inject fault and abnormal parameters, and the processed results cannot be automatically compared with the source data, thus failing to provide a more comprehensive telemetry detection report.

[0007] (4) Localization Challenges Current telemetry and monitoring equipment still relies heavily on foreign technologies in both key hardware and basic software. This dependence on foreign technologies may lead to supply chain risks and make it difficult to meet the requirements of certain sectors for self-reliance, controllability, and high security. Summary of the Invention

[0008] The purpose of this invention is to provide a portable telemetry detector that can be used for the daily maintenance and fault inspection of airborne telemetry systems. It receives PCM data streams through an antenna, performs real-time analysis on the received PCM data, and examines the feature words and key parameters in the PCM data frames. This allows for timely determination of the working status of the airborne telemetry system, simplifying the daily maintenance and upkeep of the equipment.

[0009] The technical solution adopted in this invention is as follows: A portable telemetry detector, comprising: A portable ruggedized computer platform, integrating a telemetry receiving antenna, a downconversion module, an intermediate frequency baseband module, and an airborne signal simulation module within the platform; and a test unit running on the platform, the test unit including at least a PCM receiving and demodulation module and a status detection and data analysis module; the downconversion module and the intermediate frequency baseband module are used to downconvert the radio frequency signal received by the telemetry receiving antenna to an intermediate frequency and perform baseband processing to recover the PCM data stream; The portable ruggedized computer platform uses the Phytium FT-D2000 CPU and the Galaxy Kylin domestic operating system. The portable telemetry detector has a simple working mode and a full-function working mode; In the simplified working mode, the portable telemetry detector receives PCM data streams from the airborne telemetry system through the telemetry receiving antenna, and the PCM receiving and demodulation module and the status detection and data analysis module perform real-time analysis on the received PCM data to determine the working status of the airborne telemetry system. In the full-function operating mode, the portable telemetry detector outputs simulated telemetry parameters to the airborne telemetry system through the airborne signal simulation module, and receives the PCM data stream sent by the airborne telemetry system in response to the simulated telemetry parameters through the telemetry receiving antenna. The PCM receiving and demodulation module and the status detection and data analysis module then analyze the data to complete the closed-loop test of the airborne telemetry system.

[0010] The simulated telemetry parameters include one or more of the following: audio / video signals, bus data, and discrete parameters.

[0011] The test unit also has hardware configuration, data recording, real-time display and playback functions.

[0012] In the simplified operating mode, the status detection and data analysis module can locate the fault point at the board level or module level.

[0013] In the full-function operating mode, the portable telemetry detector is connected to the airborne telemetry equipment via cable. The airborne signal simulation module outputs simulated telemetry parameters to the airborne telemetry equipment and can actively generate abnormal data. It receives the PCM data stream sent by the airborne telemetry equipment through its built-in antenna. The status detection and data analysis module compares the injected simulated telemetry parameters with the analysis result parameter values ​​to verify the robustness and fault tolerance of the airborne telemetry system. After the mission is completed, the portable telemetry detector can automatically generate a test report, enabling ground maintenance and laboratory verification of the airborne telemetry system, and outputting the test report.

[0014] The portable telemetry detector integrates all modules into a single portable ruggedized computer platform, forming a miniaturized and lightweight portable structure.

[0015] The test unit is built on the QT Creator development platform.

[0016] This invention, through modular integration design, integrates traditional rack-mounted equipment into a single portable device, solving the problems of bulky size, complex deployment, and poor field adaptability of traditional equipment. It achieves a shift from "fixed deployment" to "mobile support," providing strong technical support for on-site maintenance, rapid testing, and emergency response of airborne telemetry equipment. Furthermore, through airborne signal simulation, this invention enables the portable telemetry detector and airborne telemetry system to perform closed-loop testing and verification, fully replicating the real-world operating scenarios of the airborne telemetry system. This "signal injection + response acquisition" closed-loop testing mode allows for full-function verification of airborne telemetry equipment in a laboratory environment, without relying on a real flight platform, significantly reducing testing costs and time.

[0017] The present invention achieves the following technical effects (1) Portable integration and mobile support capabilities Addressing traditional pain points: By using modular integration technology, previously scattered devices are integrated into a single portable device, effectively solving the problems of large size, complex deployment, and poor adaptability to outdoor environments of traditional devices.

[0018] Mode shift: The airborne telemetry support mode has been transformed from the traditional "fixed deployment" to a flexible "mobile support".

[0019] On-site support: Significantly enhances the equipment's on-site maintenance, rapid testing, and emergency response capabilities in the field of airborne telemetry, providing strong technical support for field operations.

[0020] (2) Optimization of closed-loop testing capability and cost efficiency Simulating real-world scenarios: By utilizing the simulation function of airborne signals and the fault signal injection function, the portable telemetry detector has the ability to perform closed-loop testing and verification, and can completely reproduce the real working scenario of the airborne telemetry system.

[0021] Platform Dependence-Free: The closed-loop testing mode of "signal injection + response acquisition" enables the full-function verification of the equipment to be completed in a laboratory environment, eliminating the need to rely on a real flight platform.

[0022] Cost reduction and efficiency improvement: This technical feature significantly reduces the cost and time required for testing. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the principle of the present invention; Figure 2 This is a schematic diagram illustrating the working principle of the present invention. Detailed Implementation

[0025] 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 skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] like Figure 1 and 2 As shown, the present invention includes a portable ruggedized computer platform, integrating a telemetry receiving antenna, a downconversion module, an intermediate frequency baseband module, and an airborne signal simulation module within the portable ruggedized computer platform; and a test unit running on the portable ruggedized computer platform, the test unit including at least a PCM receiving and demodulation module and a status detection and data analysis module; the downconversion module and the intermediate frequency baseband module are used to downconvert the radio frequency signal received by the telemetry receiving antenna to an intermediate frequency and perform baseband processing to recover the PCM data stream; The portable ruggedized computer platform uses the Phytium FT-D2000 CPU and the Galaxy Kylin domestic operating system. The portable telemetry detector has a simple working mode and a full-function working mode; In the simplified working mode, the portable telemetry detector receives PCM data streams from the airborne telemetry system through the telemetry receiving antenna, and the PCM receiving and demodulation module and the status detection and data analysis module perform real-time analysis on the received PCM data to determine the working status of the airborne telemetry system. In the full-function operating mode, the portable telemetry detector outputs simulated telemetry parameters to the airborne telemetry system through the airborne signal simulation module, and receives the PCM data stream sent by the airborne telemetry system in response to the simulated telemetry parameters through the telemetry receiving antenna. The PCM receiving and demodulation module and the status detection and data analysis module then analyze the data to complete the closed-loop test of the airborne telemetry system.

[0027] The simulated telemetry parameters include one or more of the following: audio / video signals, bus data, and discrete analog parameters. The audio / video signals include head-up display (HUD) video data and high-definition audio / video data. The bus data includes 422 bus data such as flight parameters, radio altimeter data, BeiDou positioning information, and raw observation data, as well as ARINC-429 bus data such as atmospheric engine and inertial navigation systems. The discrete analog parameters include airborne angular displacement sensor data: analog signals such as throttle stick angle, aileron angle, control stick longitudinal angle, rudder angle, and horizontal stabilizer angle, as well as switching signals such as afterburner solenoid valve and wheel-mounted switch signals.

[0028] The test unit also has hardware configuration, data recording, real-time display, and playback functions. These functions can actually be implemented through software configuration.

[0029] In the simplified operating mode, the status detection and data analysis module can determine abnormalities in the collected data, enabling online status monitoring and anomaly detection of the airborne telemetry system. It transforms the received raw data into data usable for monitoring, and comprehensively judges the environmental and basic parameters within each board of the airborne telemetry system, including voltage, current, temperature, and board operating status (BIT data), based on system operating mode, status, detection thresholds, and other system information, forming data for fault analysis. This provides direct status support for fault location, enabling fault point localization down to the board level.

[0030] In the full-function operating mode, the portable telemetry detector connects to the airborne telemetry equipment via a dedicated cable. The airborne signal simulation module dynamically simulates flight parameter data, BeiDou data, and various discrete analog signals, outputting simulated telemetry parameters to the airborne telemetry equipment. It can also proactively generate abnormal data, including bit errors, lost frame synchronization words, checksum errors, parameter overruns, and illegal commands. The airborne telemetry equipment receives, fuses, processes, and stores multi-source data, generating a PCM data stream, which is then transmitted via a wireless channel. The portable telemetry detector receives the PCM data stream via its built-in antenna. The status detection and data analysis module performs real-time analysis of the received PCM data, checking for characteristic words and key parameters in the PCM data frames. By comparing the injected simulated telemetry parameters with the analysis results, it checks for packet loss, out-of-order delivery, or numerical deviations in the airborne telemetry equipment's output data. Furthermore, it verifies the robustness and fault tolerance of the airborne telemetry system by determining whether the airborne telemetry equipment generates a specific fault code after fault injection. Upon completion of the mission, the portable telemetry testing instrument can automatically generate a test report, enabling ground maintenance and laboratory verification of the airborne telemetry system. The specialized cables include RS422 transmission cables, ARINC429 transmission cables, video signal transmission cables, and analog and digital signal transmission cables.

[0031] The portable telemetry and detection instrument integrates all modules into a single portable ruggedized computer platform, forming a miniaturized and lightweight portable structure. It enables a flexible airborne telemetry support mode, enhancing the on-site maintenance, rapid detection, and emergency response capabilities of airborne telemetry equipment, significantly reducing aircraft downtime for maintenance, and improving the equipment's field survivability.

[0032] The test unit is equipped with telemetry detection software built on the QT Creator development platform. QT Creator features cross-platform development capabilities and provides an extremely rich UI control library. Applications developed in C++ are compiled directly into native machine code, resulting in extremely low memory usage. It can be well adapted to a fully domestic development environment, enabling the visualization of complex telemetry data and extending the battery life of portable devices.

[0033] This invention can form a closed-loop line-of-sight link with an airborne telemetry system, receive telemetry information, audio and video information transmitted by the airborne telemetry system in real time, perform real-time analysis of the received data, determine the working status of the airborne telemetry system in a timely manner, and simplify the daily maintenance and upkeep of the equipment.

[0034] As a ground support system for airborne equipment, the primary considerations for this application are safety and reliability. The main security risk of the system is information security risk. If non-independent and non-controllable chips, operating systems, databases, and other information platforms are used, they may be pre-installed with "backdoors" and may also contain vulnerabilities that are difficult to predict and exploit, thus posing a risk to information security. Therefore, independent controllability is a prerequisite for the development of this system.

[0035] The airborne system of this invention is equipped with a Phytium FT-D2000 CPU, uses the domestically produced Kylin operating system, and employs QT Creator as its software development platform.

[0036] The portable telemetry and detection device is shown in the diagram below. It is used for the routine maintenance and fault diagnosis of airborne telemetry systems. After the airborne telemetry system is powered on, it transmits PCM data streams via a wireless channel. The portable telemetry and detection device receives these streams via an antenna and performs real-time analysis on the received PCM data, checking for characteristic words and key parameters in the PCM data frames. This allows for timely determination of the airborne system's operating status, simplifying routine maintenance and upkeep. The portable telemetry and detection device can operate in two modes depending on the specific application scenario.

[0037] Simplified working mode, applicable to real airborne environments.

[0038] After the aircraft is powered on, the airborne telemetry system collects, stores, and processes various telemetry data on the aircraft, and then sends PCM data streams through wireless channels. The portable telemetry detector receives the PCM data streams radiated from space through its built-in telemetry receiving antenna, and receives PCM data frames through the PCM receiving and demodulation module. The status detection and data analysis module performs real-time analysis on the received data, checks the characteristic words and key parameters in the data frames, and can promptly determine the working status of the airborne telemetry equipment and identify the fault point. The fault point can be located at the board level or module level, thereby simplifying the daily maintenance and upkeep of the equipment.

[0039] Full-function working mode, applicable to working scenarios: simulated test environment.

[0040] The airborne signal simulation module outputs simulated telemetry parameters to the airborne telemetry equipment, and can generate audio and video signals, bus data, etc. through simulation. It can also inject fault signals and completely simulate the real working environment of the airborne system.

[0041] This mode is used for full-function checks of airborne telemetry equipment, generally for ground maintenance and laboratory verification of airborne telemetry systems. A portable telemetry tester and the airborne telemetry equipment are connected via a dedicated cable. The portable tester outputs analog parameters, including audio / video, bus parameters, and discrete parameters, to the airborne telemetry equipment, which then collects, stores, and transmits the PCM data. After normal operation, the portable tester receives the PCM data stream transmitted by the airborne telemetry equipment through its built-in antenna, performs real-time analysis of the received PCM data, and compares the analog output parameters with the analysis results to determine the operating status of the airborne telemetry equipment. Fault points can be located at the module or channel level. A test report is also output after the test, greatly facilitating equipment fault diagnosis and repair.

[0042] This invention utilizes domestically produced Phytium chips, achieving complete self-reliance and control from hardware to software, thus completely eliminating dependence on foreign technology and ensuring the security and reliability of data transmission and storage. Through this domestically developed technology system, not only is the security of critical information guaranteed, but supply chain risks are also reduced, providing reliable and self-controllable technological support.

[0043] This invention integrates traditional rack-mounted equipment into a single portable device through modular integration design, solving the problems of traditional equipment being bulky, complex to deploy, and poor adaptability to the field. It realizes the transformation from "fixed deployment" to "mobile support" and provides strong technical support for on-site maintenance, rapid testing, and emergency response of airborne telemetry equipment.

[0044] This invention integrates PCM signal reception and multi-source signal analysis, including video, bus, analog and discrete signals, into a single portable device. It not only enables rapid detection of multiple parameters and indicators, but also ensures the correlation analysis and time synchronization of multi-source data through a unified hardware and software platform. This solves the problems of scattered equipment, cumbersome operation and difficult data integration in traditional detection, and provides reliable data support for rapid on-site detection and emergency response.

[0045] This invention, through airborne signal simulation, enables portable telemetry detectors and airborne telemetry systems to perform closed-loop testing and verification, fully replicating the real-world operating scenarios of airborne telemetry systems. This "signal injection + response acquisition" closed-loop testing mode allows for full-function verification of airborne telemetry equipment in a laboratory environment, without relying on a real flight platform, significantly reducing testing costs and time.

[0046] Following preliminary research and development, multiple sets of this portable telemetry and detection instrument have been manufactured and tested. Its functions and specifications meet application requirements, and it has been successfully applied to various airborne telemetry platforms. Multiple tests have verified that it fully meets application requirements. This invention is compact, lightweight, low-power, and easy to carry, allowing for flexible deployment anytime and anywhere. Through technological innovation and functional integration, it represents a leap from "single-function detection" to "comprehensive testing and verification," providing strong technical support for the entire lifecycle of airborne equipment research, development, production, and maintenance.

[0047] In the description of this invention, it should be noted that for directional terms, such as "center," "lateral," and "vertical," the appropriate terms may be used. The directions and positional relationships indicated by symbols such as "direction", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.

[0048] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0049] Note that the above description is merely a preferred embodiment and application of the technical principles of the present invention. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the specific embodiments described herein, and may include many other effective embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A portable telemetry detector, characterized in that: include: A portable ruggedized computer platform, which integrates a telemetry receiving antenna, a down-conversion module, an intermediate frequency baseband module and an airborne signal simulation module. The test unit running on the portable ruggedized computer platform includes at least a PCM receiving and demodulation module and a status detection and data analysis module; the downconversion module and the intermediate frequency baseband module are used to downconvert the radio frequency signal received by the telemetry receiving antenna to the intermediate frequency and perform baseband processing to recover the PCM data stream; The portable ruggedized computer platform uses the Phytium FT-D2000 CPU and the Galaxy Kylin domestic operating system. The portable telemetry detector has a simple working mode and a full-function working mode; In the simplified working mode, the portable telemetry detector receives PCM data streams from the airborne telemetry system through the telemetry receiving antenna, and the PCM receiving and demodulation module and the status detection and data analysis module perform real-time analysis on the received PCM data to determine the working status of the airborne telemetry system. In the full-function operating mode, the portable telemetry detector outputs simulated telemetry parameters to the airborne telemetry system through the airborne signal simulation module, and receives the PCM data stream sent by the airborne telemetry system in response to the simulated telemetry parameters through the telemetry receiving antenna. The PCM receiving and demodulation module and the status detection and data analysis module then analyze the data to complete the closed-loop test of the airborne telemetry system.

2. The portable telemetry detector according to claim 1, characterized in that, The simulated telemetry parameters include one or more of the following: audio / video signals, bus data, and discrete parameters.

3. The portable telemetry detector according to claim 1, characterized in that, The test unit also has hardware configuration, data recording, real-time display and playback functions.

4. The portable telemetry detector according to claim 1, characterized in that, In the simplified operating mode, the status detection and data analysis module can locate the fault point at the board level or module level.

5. The portable telemetry detector according to claim 1, characterized in that, In the full-function operating mode, the portable telemetry detector is connected to the airborne telemetry equipment via cable. The airborne signal simulation module outputs simulated telemetry parameters to the airborne telemetry equipment and can actively generate abnormal data. It receives the PCM data stream sent by the airborne telemetry equipment through its built-in antenna. The status detection and data analysis module compares the injected simulated telemetry parameters with the analysis result parameter values ​​to verify the robustness and fault tolerance of the airborne telemetry system. After the mission is completed, the portable telemetry detector can automatically generate a test report, enabling ground maintenance and laboratory verification of the airborne telemetry system, and outputting the test report.

6. The portable telemetry detector according to claim 1, characterized in that, The portable telemetry detector integrates all modules into a single portable ruggedized computer platform, forming a miniaturized and lightweight portable structure.

7. The portable telemetry detector according to claim 1, characterized in that, The test unit is built on the QTCreator development platform.

Images