CN106772460A - A kind of Big Dipper user terminal test system - Google Patents
A kind of Big Dipper user terminal test system Download PDFInfo
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- CN106772460A CN106772460A CN201510833321.4A CN201510833321A CN106772460A CN 106772460 A CN106772460 A CN 106772460A CN 201510833321 A CN201510833321 A CN 201510833321A CN 106772460 A CN106772460 A CN 106772460A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/23—Testing, monitoring, correcting or calibrating of receiver elements
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Abstract
According to the problem that current Big Dipper user terminal is exposed in terms of test verification and quality evaluation, it is proposed that the necessity of the Big Dipper user terminal test system that construction criteria can be mutually authenticated between unifying test platform similar with other.A kind of Big Dipper user terminal test system further analyzes testing user equipment System Development trend, devises the Solution Architecture and software architecture of test system, it is proposed that a kind of test system implementation.By the construction of the test system, accurate, comprehensive, standardized test and the Performance Evaluation of Big Dipper user terminal function and performance are disclosure satisfy that.
Description
Technical field
The present invention relates to a kind of test system, more particularly to a kind of Big Dipper user terminal test system.
Background technology
Beidou satellite navigation system be China independently build, independent operating, and shared satellite navigation system compatible with other satellite navigation systems of the world, 2 kinds of business of satellite radio detection and satellite radionavigation can be supported, for Big Dipper user provide positioning, test the speed, time service and short message communication（Report position）Service.With the development of triones navigation system, Beidou satellite navigation user terminal is widely used in the every field of national economy, comprehensively test assessment is carried out to it to have turned into know together extensively and demand is urgent.Big Dipper user terminal species is various at present, but by actual checking, user terminal has reflected a series of problems, such as test is not comprehensive, assessment is inaccurate at aspects such as function, Performance And Reliabilities.Therefore, need to set up the Big Dipper user terminal test system that can be mutually authenticated between standard unifies test platform similar with other, before user equipment pays user, realize to its accurate, comprehensive, standardized test and Performance Evaluation, to ensure that its performance meets corresponding technical specification, it is ensured that the operation that system can be normal, reliable and stable.
By the way that to navigation user terminal test system both at home and abroad, in system Construction, key equipment development, the investigation and analysis for testing the aspect such as appraisal procedure and system administration and control, the overall development trend of current testing user equipment system can be attributed to the following aspects：1. equipment comprising modules.To improve system reliability, maintenanceability and flexibility, each equipment uses modularized design.System is in hardware device design process, widely used bus inserted card formula Universal machine cabinet and hardware and software platform configuration software, the Configuration Online and function upgrading of soft hardware equipment are realized, facilitates the signal of adequacy test system and the change of agreement, to ensure that system there can be flexibility higher.System is PnP device spare interface in the design such as framework, bus and agreement, and formulates complete connected mode and communication protocol.User can freely configure the function of PnP device on the basis of specific connected mode and communication protocol is met, so that the expandability of system is improved, as the important trend that current user equipment test system develops to intelligent, modularization direction.2. testing and control is automated with assessment.With the increase of increase, raising, the parallel processing of operating rate of large artificial system of systems scale, various instructions are only manually operated and have become unrealistic, task management becomes inevitable choice with the automation of operation, and the progress of science and technology is with the raising of automation engineering technical merit also for the automation of large test system provides feasible scheme.Task management is embodied in the advantage of operation automation：The execution efficiency of system is improve by reducing manual intervention, the handling capacity of processing information is substantially increased；Automatic running, automatic judgement in any case can improve the Stability and veracity of system；Artificial operation is reduced, human cost etc. is reduced.3. testing process regulation and standardization.To ensure the authority of test assessment, whole evaluation system embodies standardization and standardized trend on flow, method and assessment level, whole testing process is realized showing as scripting and patterned feature, unified test specification and testing process is formed, and forms the unified test appraisal procedure of standard and test assessment level.4. multisystem is compatible, scalable expansible.With the development of navigation system, whole evaluation system also develops towards multisystem compatibility direction, from single navigation system to multisystem, from single-frequency to multifrequency, from single user to multi-user, from single electromagnetic environment to complex electromagnetic environment, whole system possesses scalable expandability.
The content of the invention
The Big Dipper user terminal that can be mutually authenticated between the invention aims to setting up standard unification, developing test platform similar with other, devises a kind of Big Dipper user terminal test system.
The technical solution adopted for the present invention to solve the technical problems is：
Big Dipper user terminal testing system series framework is made up of for 7 layers user equipment, link layer, mechanical floor, operation layer, dispatch layer, management level and task layer etc..Wherein user equipment is tested object, is not belonging to system element；Task layer is defined as the task service of system supports user completion, is not specific soft hardware equipment；Link layer and mechanical floor are made up of the hardware device in system；Operation layer, dispatch layer and management level are realized by the software in system.
Described user terminal refers to the equipment under test that Big Dipper user terminal test system is supported, is mainly included：RNSS user terminals, RDSS user terminals, RNSS/GPS compatible user terminals and RDSS/RNSS dual mode subscriber terminals etc..
Described link layer is the tissue for connecting each equipment inside and outside testing user equipment system, can support system carry out interacting for signal and information.
Described mechanical floor is the main hardware part of satellite navigation signals simulation system, for supporting testing user equipment function.
Described operation layer is the implementer of all operations of whole system, and various functions are realized respectively by software module.
Described dispatch layer is the man-machine manipulation layer that region be directly facing device resource in user and system, is the core component of system operation control.
Described management level are mainly directed towards user and carry out test resource configuration, including test event is managed, tests user management and test data management etc..
Described task layer refers to the user terminal test inter-related task that Big Dipper user terminal test system is supported to complete, and these tasks include：User terminal RNSS performance tests, user terminal RDSS performance tests and user terminal GPS performance tests.
The beneficial effects of the invention are as follows：
It is analyzed by the development trend to Big Dipper user terminal test system, Big Dipper user terminal test system framework and software architecture is designed and planned, it is proposed that the implementation of test system.The test system implementation possesses automatic test control ability, disclosure satisfy that user in real time and after-action review demand, with good expandability, has been applied in certain test system, good effect is achieved, with preferable promotional value.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is test system function structure.
Fig. 2 is Big Dipper user terminal testing system software system architecture.
Fig. 3 is test system composition.
Specific embodiment
As shown in figure 1, Big Dipper user terminal testing system series framework is made up of for 7 layers user equipment, link layer, mechanical floor, operation layer, dispatch layer, management level and task layer etc..Wherein user equipment is tested object, is not belonging to system element；Task layer is defined as the task service of system supports user completion, is not specific soft hardware equipment；Link layer and mechanical floor are made up of the hardware device in system；Operation layer, dispatch layer and management level are realized by the software in system.User terminal refers to the equipment under test that Big Dipper user terminal test system is supported, is mainly included：RNSS user terminals, RDSS user terminals, RNSS/GPS compatible user terminals and RDSS/RNSS dual mode subscriber terminals etc..The layer orientates service goal layer, the soft hardware equipment comprising service object as, but is not belonging to the part of test system.Link layer is the tissue for connecting each equipment inside and outside testing user equipment system, can support system carry out interacting for signal and information.Predominantly it is tested equipment in user equipment and system and the link sens such as various time frequency signals, navigation signal and the communication information is provided, supports to carry out the navigation signal network of test assessment, time frequency signal network, monitoring network, business datum network and supply and distribution network by hardware device and cable.Mechanical floor is the main hardware part of satellite navigation signals simulation system, for supporting testing user equipment function.Including each associated test devices and communication network device in system, the difference according to undertaken task is broadly divided into time-frequency equipment, navigation signal analog machine, inbound receiving device, computer techno-stress equipment.Operation layer is the implementer of all operations of whole system, and various functions are realized respectively by software module.It is directly interacted with various equipment in system, including the transmission of data, the configuration of parameter and control management；Implement with business control information interface protocol including the signaling interface such as time-frequency, test calibration agreement and monitoring；It is computing and the higher management of whole system, is supported for whole system provides agreement, is also responsible for the function such as the collection of the simulation calculation, equipment state of completion navigation signal and the management of database.Dispatch layer is the man-machine manipulation layer that region be directly facing device resource in user and system, is the core component of system operation control.
Described management level are mainly directed towards user and carry out test resource configuration, including test event management, test user management and test data management etc., it is responsible for the classification of completion system incoming task and the management and running of relevant device, including the planning of test assignment, the control of testing process, the collection of test data show with treatment and device status monitoring.Task layer refers to the user terminal test inter-related task that Big Dipper user terminal test system is supported to complete, and these tasks include：User terminal RNSS performance tests, user terminal RDSS performance tests and user terminal GPS performance tests.The layer orientates functional realiey as, not comprising specific soft hardware equipment.This layer definition task as Big Dipper user terminal test system input, activation system operation.
As shown in Fig. 2 Big Dipper user terminal testing system software mainly includes：Data simulation software, test control software and analysis and evaluation software.Mathematical simulation software major function is, according to experiment needs, to emulate all kinds of observation data of subscriber computer the multi-constellation navigation text and many constellations of Beidou system and the GPS system, multifrequency point under different motion status condition.For radiofrequency signal emulation provides data source, for analysis and evaluation software provides assessment benchmark.Mathematical simulation software is main to be made up of units such as space-time system emulation, satellite constellation emulation, space environment simulation, user trajectory emulation, observation data simulation and navigation message generations.Testing and control software completes all control functions when whole system is run.Control instruction, the self-inspection of completion system closed loop, the control of mathematical simulation, the control of signal imitation generation and Test Data Collecting etc. are sent to each subsystem and equipment.Analysis and evaluation software mainly completes analysis and evaluation function and the generation of experimental report of test data.Analysis and evaluation software obtains the test data of subscriber computer from test control software, and the emulation data at corresponding moment are obtained from data simulation software, and test data is processed using corresponding assessment models according to disparity items requirement, generates corresponding experimental report.Test data can assessment result be stored in database, also can print output.
As shown in Figure 3, Big Dipper user terminal test system emulates the Big Dipper and gps satellite constellation, satellite motion characteristic and real space environmental characteristics in laboratory environment, typical motion characteristic of the emulation user equipment under practical application, the dynamic navigation signal that analog subscriber equipment Antenna aperture under typical motion characteristic is received, builds the experimental enviroment under the various typical application conditions of user equipment or critical condition.Big Dipper user terminal test system is main to be made up of testing and control and assessment, satellite navigation signal simulator, inbound receiver, all purpose instrument and test environment etc..Test system is mainly distributed on control computer room and 2, darkroom region.Control machine house-owner will include：Equipment and instrument rack, system control position and wired testboard, main responsible completion system control and the foundation of wired test environment；Equipment in darkroom mainly includes：Dual-mode antenna, programmable power supply and turntable.Testing and control is to complete test condition configuration, the control of testing process, the collection of test data and storage and the analysis of test result and assessment with the major function of assessment software.Satellite navigation signal simulator is mainly made up of mathematical simulation software and analog simulation source.The main task of mathematical simulation software is to emulate aeronautical satellite text and its observation data that navigation neceiver is received under different motion status condition, for analog simulation provides data source, for testing and control provides assessment benchmark with assessment software.Analog simulation source main task is that the navigation message and observation data of mathematical simulation Software Create are accurately generated radio frequency analog signal, there is provided used to test environment.The major function of inbound receiver is to complete that the RDSS inbound short burst signals for being tested user equipment transmitting are captured, tracked and demodulated, the parsing to information is realized, the measurement to the characteristics of signals such as inbound short burst signal power, pseudorange, frequency deviation, BPSK carrier phases modulation deviation and carrier suppression is completed.All purpose instrument mainly includes：Rubidium atomic clock, frequency spectrograph, time-interval counter and high-speed oscilloscope etc., the wherein rubidium atomic clock test that high-precision time reference, frequency spectrograph, time-interval counter and high-speed oscilloscope etc. complete to customer equipment part index under control of the testing and control with assessment subsystem for system is provided.Test environment is divided into wired test environment and wireless test environment.Wired test environment is directly connected by radio-frequency cable with navigation neceiver LNA, wireless test environment refers in microwave dark room, the wireless test that simulation free space environment is carried out to user, it is main to be made up of microwave dark room, test antenna, test table and testing and control port etc., for tested user equipment provides wireless test condition.
Claims (8)
1. a kind of Big Dipper user terminal test system, architectural framework is made up of for 7 layers user equipment, link layer, mechanical floor, operation layer, dispatch layer, management level and task layer etc.；Wherein user equipment is tested object, is not belonging to system element；Task layer is defined as the task service of system supports user completion, is not specific soft hardware equipment；Link layer and mechanical floor are made up of the hardware device in system；Operation layer, dispatch layer and management level are realized by the software in system.
2. Big Dipper user terminal test system according to claim 1, it is characterized in that described user terminal refers to the equipment under test that Big Dipper user terminal test system is supported, mainly includes：RNSS user terminals, RDSS user terminals, RNSS/GPS compatible user terminals and RDSS/RNSS dual mode subscriber terminals etc..
3. Big Dipper user terminal test system according to claim 1, it is characterized in that described link layer is the tissue for connecting each equipment inside and outside testing user equipment system, can support system carry out interacting for signal and information.
4. Big Dipper user terminal test system according to claim 1, it is characterized in that described mechanical floor is the main hardware part of satellite navigation signals simulation system, for supporting testing user equipment function.
5. Big Dipper user terminal test system according to claim 1, it is characterized in that described operation layer is the implementer of all operations of whole system, various functions are realized respectively by software module.
6. Big Dipper user terminal test system according to claim 1, it is characterized in that described dispatch layer is the man-machine manipulation layer that region be directly facing device resource in user and system, it is the core component of system operation control.
7. Big Dipper user terminal test system according to claim 1, it is characterized in that described management level are mainly directed towards user carries out test resource configuration, including test event management, test user management and test data management etc..
8. Big Dipper user terminal test system according to claim 1, it is characterized in that described task layer refers to Big Dipper user terminal test system supporting the user terminal test inter-related task that completes, these tasks include：User terminal RNSS performance tests, user terminal RDSS performance tests and user terminal GPS performance tests.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884220A (en) * | 2017-12-27 | 2018-04-06 | 中国电子科技集团公司第五十四研究所 | A kind of RNSS payload test device |
| CN108020848A (en) * | 2017-12-25 | 2018-05-11 | 湖南卫导信息科技有限公司 | A kind of RDSS navigation signal simulator method for self-calibrating based on frequency conversion |
| CN111337951A (en) * | 2020-05-18 | 2020-06-26 | 湖南卫导信息科技有限公司 | A system type test equipment for interior external field test uses |
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2015
- 2015-11-25 CN CN201510833321.4A patent/CN106772460A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108020848A (en) * | 2017-12-25 | 2018-05-11 | 湖南卫导信息科技有限公司 | A kind of RDSS navigation signal simulator method for self-calibrating based on frequency conversion |
| CN108020848B (en) * | 2017-12-25 | 2021-11-16 | 湖南卫导信息科技有限公司 | Frequency conversion-based RDSS navigation signal simulator self-calibration method |
| CN107884220A (en) * | 2017-12-27 | 2018-04-06 | 中国电子科技集团公司第五十四研究所 | A kind of RNSS payload test device |
| CN111337951A (en) * | 2020-05-18 | 2020-06-26 | 湖南卫导信息科技有限公司 | A system type test equipment for interior external field test uses |
| CN111337951B (en) * | 2020-05-18 | 2020-08-25 | 湖南卫导信息科技有限公司 | A system type test equipment for interior external field test uses |
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Application publication date: 20170531 |