GNSS (Global Navigation Satellite System) to-day time characteristic automatic test platform
By designing the GNSS day-to-day automatic test platform and automatically controlling the power supply and RF switch of the test board set, the existing manual testing inefficiency is solved, and efficient and accurate GNSS receiver performance evaluation is achieved, and comprehensive testing needs under various conditions are met.
Patent Information
- Application Number
- CN202421929271.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-08-09
AI Technical Summary
Existing GNSS receivers rely on cumbersome manual operations for day-time characteristics testing, which is inefficient, poor accuracy and repeatability, making it difficult to cover all potential test scenarios and conditions, affecting the depth of the test and product performance.
A GNSS time-to-day automatic test platform is designed to automatically control relays and radio frequency switches to realize the up and down power of the test board set and the on and off GNSS signals. It is used to provide navigation timing signals with the timing board set, and supports the testing of cold start, hot start and lock-loss recapture time.
It improves the degree of automation of tests, shortens the test cycle, enhances the accuracy and repeatability of test results, ensures a comprehensive evaluation of GNSS receivers under a variety of conditions, and improves testing efficiency and product reliability.
Smart Images
Figure CN223284386U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the field of testing technology, and specifically relates to an automated testing platform for GNSS sky time characteristics. Background Art
[0002] With the widespread adoption of Global Navigation Satellite System (GNSS) technology across various industries, the performance evaluation standards for GNSS receivers have also increased. This is particularly true for time-of-day characteristics, which directly impact the receiver's response speed and reliability in practical applications and are crucial for ensuring the efficient operation of navigation systems.
[0003] However, faced with increasingly stringent performance requirements, existing testing methods have shown obvious shortcomings.
[0004] Currently, most GNSS receiver time-of-day performance testing still relies on cumbersome manual processes. This heavy reliance on manual intervention is not only inefficient and time-consuming, but also highly susceptible to the operator's skill level, experience, and prevailing operating conditions, significantly compromising the accuracy and repeatability of test results.
[0005] More critically, the limitations of manual testing in terms of flexibility and comprehensiveness are becoming increasingly apparent. Due to operational complexity and time costs, existing methods often struggle to cover all potential test scenarios and conditions, making it impossible to fully evaluate receiver performance in different environments. This limitation not only hinders the in-depth nature of testing but also limits the timely identification and correction of potential receiver issues, ultimately impacting the performance and reliability of the final product.
[0006] In summary, with the continuous expansion of GNSS technology applications and the continuous improvement of performance requirements, existing manual testing can no longer meet the industry's demand for GNSS receiver performance testing. Utility Model Content
[0007] In order to solve the problems of the above-mentioned prior art, the present application proposes an automated test platform for GNSS sky time characteristics, which can cooperate with dedicated host computer software. The test platform can automatically control the relay to realize the power on and off of the test board set, thereby testing the cold start and hot start time. At the same time, by controlling the on and off of the RF switch, the loss of lock and recapture time can be accurately measured. The timing board set can provide accurate navigation timing signals to the test board set, thereby implementing the test board set to test the authorization signal in the BDS navigation system. It is suitable for performance evaluation and quality control of GNSS receivers, and is particularly suitable for the needs of production lines and R&D laboratories.
[0008] The utility model adopts the following technical solutions:
[0009] A GNSS sky time characteristic automatic test platform includes a housing and:
[0010] A one-to-two power splitter is provided inside the housing, and is used to receive GNSS full-frequency signals;
[0011] A power supply is provided inside the housing and is used to receive external 220V AC mains power;
[0012] A relay control module is provided inside the housing, the relay control module is connected to the power supply, and is used to receive control instructions from an external RS232 serial port to the relay control module;
[0013] A radio frequency switch is provided inside the housing, and is connected to the one-to-two power splitter and the relay control module respectively;
[0014] A timing board set is arranged inside the housing, the timing board set is connected to the one-to-two power splitter and the power supply respectively, and the timing board set is used to receive a first monitoring instruction from an external RS232 serial port to the timing board set;
[0015] A test board set is arranged inside the shell, and the test board set is connected to the radio frequency switch, the relay control module and the timing board set respectively. The test board set is used to receive the second monitoring instruction of the external RS232 serial port to the test board set, the RS232 serial port navigation timing signal of the timing board set and output RS232 serial port GNSS positioning and navigation data.
[0016] Furthermore, the test board set is located above the timing board set, and the test board set is located on the timing board set to form a double-layer structure.
[0017] Furthermore, the one-to-two power splitter, the radio frequency switch, the relay control module and the power supply are all arranged on the bottom surface of the shell.
[0018] Furthermore, the timing board set provides navigation timing signals for the test board set.
[0019] Furthermore, the radio frequency switch is used to control the on and off of the GNSS full-frequency signal in the test card set to test the GNSS signal loss and re-capture time.
[0020] Furthermore, the relay control module realizes on-off control of the power input circuits of the test board set and the radio frequency switch respectively through the modbus protocol, so as to manage the power operation status of the radio frequency switch and the test board set respectively.
[0021] Furthermore, the shell is in the shape of a cuboid, and a hollow structure is provided on the top surface of the shell.
[0022] Furthermore, the radio frequency switch and the one-to-two power splitter are respectively arranged on the bottom surface of the shell through supporting structures.
[0023] Furthermore, the number of the radio frequency switches is 2.
[0024] Furthermore, it also includes:
[0025] A partition is provided inside the shell, and is used for installing the timing board set and the test board set.
[0026] The utility model has the following technical effects:
[0027] Automated control. This platform significantly reduces the need for manual operation by automatically controlling the power on and off of the test board suite and the on and off of the RF switch. This improvement not only increases the automation level of the test process but also reduces errors introduced by manual operation, thereby improving the efficiency and reliability of the entire test process.
[0028] Efficiency. Thanks to the automated testing process, this platform significantly shortens the testing cycle. This means that more testing tasks can be completed in the same amount of time, significantly improving testing efficiency. This is of great significance for accelerating product development cycles and shortening time to market.
[0029] Accuracy and repeatability. Automated testing reduces human intervention and effectively improves the accuracy and repeatability of test results. This is crucial for ensuring product quality and improving product reliability, especially during the product verification phase before large-scale production.
[0030] Flexibility and comprehensiveness. This platform allows users to easily configure and adjust different test conditions, thereby achieving a comprehensive evaluation of the GNSS receiver's time-of-day characteristics under various conditions. This flexibility and comprehensiveness ensures that test results fully reflect product performance, helping development teams identify and resolve potential issues in a timely manner.
[0031] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0032] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application but do not constitute an improper limitation on the present application. In the drawings:
[0033] Figure 1 This is the appearance diagram of a GNSS sky time characteristic automatic test platform proposed by the utility model;
[0034] Figure 2 This is a structural diagram of a GNSS sky time characteristic automatic test platform proposed by the utility model;
[0035] Figure 3 This is a schematic diagram of the bottom structure of a GNSS sky time characteristic automatic test platform proposed by the utility model;
[0036] Figure 4 This is a schematic diagram of the actual application of a GNSS time-of-day characteristic automated testing platform proposed by the utility model; DETAILED DESCRIPTION
[0037] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.
[0038] In the description of this application, it should be understood that the orientation or positional relationship indicated by terms and the like is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device, element, module, system, platform or device referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. The following description of this application is only to be understood as a description of individual embodiments of the technical solution of this application. Other embodiments are not reflected in the following description, but it does not mean that this application excludes these other embodiments, and the technical solution of this application is not limited to the specific implementation methods described below, and the scope of protection of this application is not limited to only the specific implementation methods described below. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of this application.
[0039] It should be noted that, if the terms "first", "second", etc. appear in the specification and claims of the present application and the above-mentioned drawings, the description is only used to distinguish similar objects and is not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0040] This application provides a GNSS time-of-day characteristics automated testing platform, which can automatically test the cold start time, hot start time and loss of lock recapture time of GNSS receivers, thereby improving test efficiency and accuracy.
[0041] In some embodiments, as Figure 1 and Figure 2 As shown, the utility model is a GNSS time characteristic automatic test platform, including a shell 1, and also includes a one-to-two power splitter 2, a timing board set 3, a radio frequency switch 4, a test board set 5, a relay control module 6 and a power supply 7, wherein the one-to-two power splitter 2 is arranged inside the shell 1, and the one-to-two power splitter 2 is used to receive GNSS full-frequency point signals; the power supply 7 is arranged inside the shell 1, and the power supply 7 is used to receive external 220V AC mains power; the relay control module 6 is arranged inside the shell 1, and the relay control module 6 is connected to the power supply 7, and the relay control module 6 is used to receive control instructions from an external RS232 serial port to the relay control module 6; the radio frequency switch 4 is arranged inside the shell 1, and the radio frequency switch 4 is respectively connected to the one-to-two power splitter 2 and the The relay control module 6 is connected; the timing board card set 3 is arranged inside the shell 1, and the timing board card set 3 is respectively connected to the one-to-two power splitter 2 and the power supply 7, and the timing board card set 3 is used to receive the first monitoring instruction of the external RS232 serial port to the timing board card set 3; the test board card set 5 is arranged inside the shell 1, and the test board card set 5 is respectively connected to the RF switch 4, the relay control module 6 and the timing board card set 3, and the test board card set 5 is used to receive the second monitoring instruction of the external RS232 serial port to the test board card set 5, and the test board card set 5 is also used to receive the RS232 serial port navigation timing signal of the timing board card set 3, and the test board card set 5 is also used to receive and output RS232 serial port GNSS positioning and navigation data.
[0042] In some embodiments, the test board set 5 is located above the timing board set 3 , and the test board set 5 is located on the timing board set 3 to form a double-layer structure.
[0043] In some embodiments, as Figure 2 and Figure 3 As shown, the one-to-two power splitter 2, the radio frequency switch 4, the relay control module 6 and the power supply 7 are all arranged on the bottom surface of the housing.
[0044] In some embodiments, the timing board set 3 provides navigation timing signals for the test board set 5 .
[0045] In some embodiments, the RF switch 4 is used to control the on / off of the GNSS full-frequency signal in the test card set 5 to test the GNSS signal loss and re-acquisition time.
[0046] In some embodiments, the relay control module 6 implements on-off control of the power input circuits of the test board set 5 and the RF switch 4 respectively through the modbus protocol to manage the power operation status of the RF switch 4 and the test board set 5 respectively.
[0047] In some embodiments, as Figure 1 As shown, the housing 1 is in the shape of a rectangular parallelepiped, and a hollow structure 11 is provided on the top surface of the housing. The hollow structure 11 is used to accommodate the receiver.
[0048] In some embodiments, the radio frequency switch 4 and the one-to-two power splitter 2 are respectively arranged on the bottom surface of the housing 1 through supporting structures.
[0049] In some embodiments, the number of the RF switches 4 is 2.
[0050] In some embodiments, a partition 8 is further included, which is arranged inside the housing 1 , and the partition 8 is used to install the timing board set 3 and the test board set 5 .
[0051] The GNSS time-based automatic test platform of this utility model is used in actual Figure 4 As shown, the connection test can be performed through a PC / host computer.
[0052] It can be seen that the present invention can realize a fully automatic testing process, automatically perform power management and RF switching operations of the test board set through an integrated control system, significantly reduce manual intervention, and improve the automation level and reliability of the testing process.
[0053] The utility model also has multifunctional testing capabilities. The platform supports comprehensive testing of cold start, hot start and loss-of-lock recapture time, and ensures the comprehensiveness and accuracy of the test through precise signal and power control.
[0054] The utility model also has a precise control mechanism: relays and radio frequency switches are used to achieve precise control of test signals and power supply status, greatly improving the accuracy and repeatability of test results.
[0055] The utility model also has the characteristics of flexible configuration system, supports rapid adjustment of test parameters and conditions, adapts to different test requirements and environments, and enhances the applicability and scalability of the platform.
[0056] The utility model can realize integrated data processing and cooperate with the host computer software to realize automatic collection and analysis of test data, simplify the data processing process, and improve analysis efficiency and data accuracy.
[0057] This utility model also has wide compatibility: it is designed to be compatible with multiple GNSS systems, such as BeiDou, GPS, GLONASS, and Galileo, and is suitable for receiver testing of multiple systems to meet a wide range of market needs.
[0058] The utility model has significant advantages in improving the efficiency, accuracy, comprehensiveness and flexibility of GNSS receiver time-of-day characteristic testing.
[0059] Optionally, specific examples in this application may refer to the examples described in the above embodiments and optional implementation modes.
[0060] The above specific embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.
[0061] In the above embodiments of the present application, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.
[0062] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the system embodiments described above are merely illustrative, for example, multiple devices can be combined or integrated into another system, or some features can be ignored or not implemented.
[0063] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.
Claims
1. A GNSS time-of-day characteristics automated testing platform, comprising a housing, characterized in that: Also includes: A one-to-two power splitter is provided inside the housing, and is used to receive GNSS full-frequency signals; A power supply is provided inside the housing and is used to receive external 220V AC mains power; A relay control module is provided inside the housing, the relay control module is connected to the power supply, and is used to receive control instructions from an external RS232 serial port to the relay control module; A radio frequency switch is provided inside the housing, and is connected to the one-to-two power splitter and the relay control module respectively; A timing board set is arranged inside the housing, the timing board set is connected to the one-to-two power splitter and the power supply respectively, and the timing board set is used to receive a first monitoring instruction from an external RS232 serial port to the timing board set; A test board set is arranged inside the shell, and the test board set is connected to the radio frequency switch, the relay control module and the timing board set respectively. The test board set is used to receive the second monitoring instruction of the external RS232 serial port to the test board set, the RS232 serial port navigation timing signal of the timing board set and output RS232 serial port GNSS positioning and navigation data.
2. The GNSS time-of-day characteristics automated testing platform according to claim 1, characterized in that: The test board set is located above the timing board set, and the test board set is located on the timing board set to form a double-layer structure.
3. The GNSS time-of-day characteristics automated testing platform according to claim 1, characterized in that: The one-to-two power splitter, the radio frequency switch, the relay control module and the power supply are all arranged on the bottom surface of the shell.
4. The GNSS time-of-day characteristics automated testing platform according to claim 1, characterized in that: The timing board set provides navigation timing signals for the test board set.
5. The GNSS time-of-day characteristics automated testing platform according to claim 1, characterized in that: The RF switch is used to control the on and off of the GNSS full-frequency signal in the test card set to test the GNSS signal loss and re-capture time.
6. The GNSS time-of-day characteristics automated testing platform according to claim 1, characterized in that: The relay control module realizes on-off control of the power input circuits of the test board set and the radio frequency switch respectively through the modbus protocol, so as to manage the power operation status of the radio frequency switch and the test board set respectively.
7. The GNSS time-of-day characteristics automated testing platform according to any one of claims 1 to 6, characterized in that: The shell is in the shape of a cuboid, and a hollow structure is provided on the top surface of the shell.
8. The GNSS time-of-day characteristics automated testing platform according to claim 7, characterized in that: The radio frequency switch and the one-to-two power divider are respectively arranged on the bottom surface of the shell through supporting structures.
9. The GNSS time-of-day characteristics automated testing platform according to claim 8, characterized in that: The number of the radio frequency switches is 2.
10. The GNSS time-of-day characteristics automated testing platform according to claim 9, characterized in that: Also includes: A partition is provided inside the shell, and is used for installing the timing board set and the test board set.