Radio frequency instrument multiplexing maintenance platform

Abstract

The invention discloses a radio frequency instrument multiplexing maintenance platform, and relates to the technical field of test and maintenance of high-frequency electronic products. The system comprises hardware and software, wherein the hardware comprises an embedded controller, a driving board, a matrix switch, a station controller, a clamp, a related interface and the like; software comprises initialization, a station control program, a matrix switch, a motor driving program, test result reading and the like, the maintenance platform can perform multi-station multiplexing on a set of radio frequency instruments according to the number of channels of the matrix switch, each set of equipment can extend six maintenance stations at most, and the maintenance platform can perform multi-station multiplexing on the radio frequency instruments according to the number of channels of the matrix switch. 485 communication between the station notifier and the master controller can be realized according to a 485 communication protocol; according to the invention, the trouble of inaccurate parameter test caused by back-and-forth movement of the to-be-maintained equipment due to switching among a plurality of stations by maintenance personnel can be effectively reduced, meanwhile, the utilization rate of expensive radio frequency instruments and equipment can be effectively improved, and the working efficiency of the maintenance personnel in the maintenance station is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of high-frequency electronic product testing and maintenance, and specifically to a radio frequency instrument multiplexing and maintenance platform. Background Art

[0002] The radio frequency instrument multiplexing and maintenance platform is a comprehensive system integrating functions of maintenance, testing, calibration, and multiplexing. It is mainly used for the maintenance service of electronic products to ensure that the electronic products can be restored to the best working state after maintenance and achieve multiplexing. The radio frequency instrument multiplexing and maintenance platform is widely used in various scenarios requiring electronic product testing, such as communication, radar, electronic countermeasure, aerospace and other fields. In these fields, the performance of radio frequency instruments has an important impact on the overall performance of the system. Therefore, regular maintenance and calibration of electronic products are required;

[0003] In the maintenance department of electronic products, a set of test instrument equipment is required for each maintenance station during product maintenance. However, it is statistically found in actual work that the utilization rate of test instrument equipment at each station is relatively low. Especially for the maintenance positions of high-frequency electronic products, a set of high-frequency test instrument equipment often has a high price, which results in the problem of low utilization rate of high-cost high-frequency test instrument equipment. In view of the above problems, the inventor proposes a radio frequency instrument multiplexing and maintenance platform to solve the above problems. Summary of the Invention

[0004] In order to solve the problem of low utilization rate of test instrument equipment at each station, especially for the maintenance positions of high-frequency electronic products, a set of high-frequency test instrument equipment often has a high price, which results in the problem of low utilization rate of high-cost high-frequency test instrument equipment; the purpose of the present invention is to provide a radio frequency instrument multiplexing and maintenance platform.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: A radio frequency instrument multiplexing and maintenance platform includes hardware and software. The hardware includes an embedded controller, a drive board, a matrix switch, a station controller, a fixture, and related interfaces, etc.; the software includes initialization, station control program, matrix switch and motor drive program, and test result reading, etc.

[0006] Preferably, this maintenance platform can multiplex a set of radio frequency instruments for multiple stations according to the number of channels of the matrix switch, and the maximum number of expandable maintenance stations for each set of equipment is 6.

[0007] Preferably, this maintenance platform can achieve 485 communication between the station annunciator and the main control. According to the 485 communication protocol, the number of expandable empty position controllers of this platform can be increased.

[0008] Preferably, the test results of the maintenance platform can be displayed synchronously at multiple stations through a frequency divider, and the test results can be displayed on a computer display screen, which can effectively protect the healthy eyes of maintenance testers.

[0009] Preferably, the maintenance platform helps to reduce the switching of maintenance personnel's workstations, facilitates maintenance personnel to quickly perform parameter testing and verification of maintenance products, and is conducive to improving product maintenance efficiency.

[0010] Preferably, the maintenance platform can automatically realize the preemption of workstation usage rights and time-division multiplexing of radio frequency instruments, effectively improving the utilization rate of expensive equipment.

[0011] Preferably, the maintenance platform can record and store the maintenance results of batch products, which is conducive to relevant personnel to analyze and trace the quality of batch products.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The present invention can effectively reduce the trouble of maintenance personnel switching between multiple workstations, which leads to inaccurate parameter testing of the equipment to be repaired due to the back and forth movement. At the same time, it can also effectively improve the utilization rate of expensive radio frequency instruments and equipment, and improve the work efficiency of maintenance personnel at maintenance stations;

[0014] 2. The RF instrument reuse maintenance platform provided by the present invention is realized through hardware and software design: automatic configuration of maintenance stations and matrix switch channels, preemption of the right to use RF instruments by station controllers through serial communication, and associated control of fixtures; test results are displayed on the same screen at multiple stations through a screen splitter, and the main characteristic parameters of the product to be repaired are displayed on the host display screen through analysis and processing, and abnormal warnings are issued; finally, the maintenance results of batch products are formed into a maintenance test diary. The present invention effectively improves the utilization rate of RF instruments and equipment, reduces the time wasted by maintenance personnel in coordinating multiple stations, effectively improves the maintenance efficiency of high-frequency products for maintenance personnel, and provides effective support for quality reports and product traceability of batch products, which is conducive to helping R&D departments quickly find research solutions for product design upgrades. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the platform frame structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the system flow structure of the present invention.

[0018] Figure 3 This is a schematic diagram of the test flow structure of Station 1 of the present invention.

[0019] Figure 4 This is a schematic diagram of the test flow structure of Station 2 of the present invention. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Embodiment: As Figures 1-4 shown, the present invention provides a technical solution: a radio frequency instrument multiplexing maintenance platform, including hardware and software. The hardware includes an embedded controller, a driver board, a matrix switch, a station controller, a fixture and related interfaces, etc.; the software includes initialization, station control program, matrix switch and motor drive program, and test result reading, etc. After the system is powered on and completes self-check, after completing relevant parameter settings, the configuration result of the matrix switch channels and maintenance stations is displayed on the host display screen. After completing communication, the real-time status of the current radio frequency instrument device is displayed on the display screen, and initially, the radio frequency instrument is displayed as being in an idle state. When the maintenance personnel at Station 1 press the device usage right preemption switch at Station 1, they obtain the usage right of the radio frequency instrument, and the green indicator light at Station 1 lights up, while other indicator lights go out. The maintenance personnel at Station 1 can operate the fixture to simulate the actual packaging situation of the device under test. The platform will display the test results and form a daily record. If the device has been working for a period of time, the platform will judge the status of the radio frequency instrument. If it is judged that the usage right of Station 1 has not been released, the red indicator light of the Station 2 controller will light up. At this time, the maintenance personnel at Station 2 cannot perform any operations until the yellow indicator light at Station 2 lights up, and then they can press the button to preempt the usage right of the radio frequency instrument. The platform gives the usage right of the radio frequency device to the station operator who presses the button first by judging the order in which the preemption buttons at the stations are pressed. When it is judged that Station 2 has obtained the usage right, the platform automatically switches the matrix switch to Station 2, and the green indicator light at Station 2 lights up, while the red and yellow indicator lights go out. The maintenance personnel at Station 2 can operate the fixture to simulate the actual packaging situation of the device under test. The platform will display the test results and form a daily record.

[0022] This maintenance platform can multiplex a set of RF instruments for multiple workstations according to the number of channels of the matrix switch. The maximum number of expandable maintenance workstations for each set of equipment is 6.

[0023] By adopting the above technical solution, all operation and maintenance personnel can complete their work at their own maintenance workstations. When performing maintenance, the maintenance personnel only need to complete the wiring of the device under test and the placement position of the device under test in the fixture, and the rest of the functions are completed by the software.

[0024] This maintenance platform can realize the 485 communication between the workstation notifier and the main control. According to the 485 communication protocol, the number of expandable vacant position controllers of this platform can be increased.

[0025] By adopting the above technical solution, after the system is powered on, the configuration of the workstations and the matrix switch channels is completed according to the parameter settings; the workstation controller realizes the communication with the main control through 485 communication, and judges which workstation obtains the right to use the RF instrument by reading the key status.

[0026] The test results of this maintenance platform can be synchronously displayed for multiple workstations through a frequency divider, and the test results can be displayed on a computer display screen, which can effectively protect the health and eye use of maintenance and test personnel.

[0027] By adopting the above technical solution, a set of RF instruments are distributed to multiple workstations through a matrix switch. Each workstation is equipped with a supporting workstation controller, on which there are four keys respectively used to control the preemption and release of the right to use, and the control and release of the motor fixture. When this workstation obtains the right to use the RF instrument, the green indicator light is on, the red indicator light is off, and the yellow indicator light is off.

[0028] This maintenance platform helps to reduce the workstation switching of maintenance personnel, facilitates the maintenance personnel to quickly conduct parameter test verification of the repaired products, and is beneficial to improving the maintenance efficiency of products.

[0029] By adopting the above technical solution, the switching of the matrix switch is controlled by giving a relay signal in the program. When the workstation obtains the right to use the RF instrument, the right to control the motor of this workstation is set in the software, and the pressure applied by the fixture to the device under test is judged by obtaining the value of the pressure sensor whether it can simulate the state of the actual package of the device under test.

[0030] This maintenance platform can automatically realize the preemption of the right to use of workstations and multiplex the RF instruments in a time-sharing manner, effectively improving the utilization rate of expensive equipment.

[0031] By adopting the above technical solutions, the video distributor can display the results measured by the spectrum analyzer on the same screen at each maintenance station and display them in real time through the monitor. Through the analysis and processing of the test results in the software, the test result parameters of the product being repaired can be displayed on the display screen of the host computer. When the test results are abnormal, abnormal reminders can be given through flashing or indicator lights.

[0032] This maintenance platform can record and store the maintenance results of batch products, which is conducive to relevant personnel to analyze the quality of batch products and trace the quality source.

[0033] By adopting the above technical solutions, the platform can analyze the test results obtained in real time and give an alarm in time once an abnormality is found. At the same time, the maintenance test results of the products in the current batch or shift can be saved in the form of a diary for subsequent product quality analysis and traceability tracking.

[0034] Working principle: This platform realizes the communication between the station controller and the main controller through 485 communication, and uses a matrix switch to realize the time-sharing multiplexing of a set of radio frequency instruments by multiple stations; the automatic fixture cooperates with the pressure sensor to simulate the encapsulation scenario of the amplifier under test, reducing the frequent operation of repeatedly disassembling the encapsulation cover of the amplifier during the maintenance process; the video distributor is used to realize the multi-station synchronous display of the test results of the spectrum analyzer. When multiple maintenance personnel are repairing high-frequency electronic products at their own maintenance stations, the product to be repaired can be connected to the corresponding path of the matrix switch, and the relevant buttons on the station controller can be pressed to preempt the use right of the radio frequency instrument. When the station obtains the use right, the indicator light is green, indicating that the station has obtained the use right of the radio frequency instrument, and the indicator lights of other stations are red, indicating that other stations cannot use the radio frequency instrument and cannot preempt the use of the instrument equipment in the current state. When the indicator light is yellow, it means that the current radio frequency instrument is idle and all stations can preempt the use right. The station that obtains the use right of the radio frequency instrument controls the control of the fixture configured at the station through the buttons on the station controller, and measures the pressure applied by the fixture on the amplifier in real time through the pressure sensor on the fixture. When the measured pressure value has the same effect as the actual encapsulation, the software controls the matrix switch to load the signal source onto the amplifier, and synchronously displays the results measured by the spectrum analyzer at the maintenance station through the video distributor. At the same time, the test results obtained are analyzed and processed through software control and the test results are displayed.

[0035] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these changes and modifications.

Claims

1. A radio frequency instrument reuse maintenance platform, including hardware and software, characterized in that: The hardware includes embedded controller, driver board, matrix switch, station controller, fixture and related interfaces, etc.; the software includes initialization, station control program, matrix switch and motor driver program, and test result reading, etc.

2. A radio frequency instrument reuse maintenance platform as claimed in claim 1, characterized in that: This maintenance platform can multiplex a set of RF instruments at multiple workstations according to the number of channels of the matrix switch, and each set of equipment can expand the number of maintenance workstations to 6 at most.

3. A radio frequency instrument reuse maintenance platform as claimed in claim 1, characterized in that: The maintenance platform can realize 485 communication between the workstation notifier and the main control. According to the 485 communication protocol, the platform can expand the number of vacant position controllers.

4. The radio frequency instrument reuse maintenance platform according to claim 1, characterized in that: The test results of the maintenance platform can be displayed synchronously at multiple stations through a frequency divider, and the test results can be displayed on a computer display screen, which can effectively protect the healthy eyes of maintenance testers.

5. The radio frequency instrument reuse maintenance platform according to claim 1, characterized in that: The maintenance platform helps to reduce the switching of maintenance personnel's workstations, facilitates maintenance personnel to quickly perform parameter testing and verification of maintenance products, and is beneficial to improving product maintenance efficiency.

6. The radio frequency instrument reuse maintenance platform according to claim 1, characterized in that: The maintenance platform can automatically seize the right to use the workstation and time-share radio frequency instruments, effectively improving the utilization rate of expensive equipment.

7. The radio frequency instrument reuse maintenance platform according to claim 1, characterized in that: The maintenance platform can record and store the maintenance results of batch products, which is conducive to the relevant personnel to analyze and trace the quality of batch products.

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