CN103997435A - Traffic Internet-of-Things testing method based on fault simulation - Google Patents
Traffic Internet-of-Things testing method based on fault simulation Download PDFInfo
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Abstract
The invention discloses a traffic Internet-of-Things testing method based on fault simulation. The traffic Internet-of-Things testing method is characterized in that a testing machine is connected to a tested system through a network switching device and gateway devices, and the testing machine executes the following steps: (1) a traffic Internet-of-Things simulation environment is built; (2) simulation testing data are generated, and on the basis of the built traffic Internet-of-Things simulation environment, the simulation testing data under the normal condition and the simulation testing data under the fault condition are generated; (3) testing is carried out, a testing script transmits the simulation testing data generated in the step (2) to the tested traffic Internet-of-Things system through the network switching device and the gateway devices, collects the operation result of the tested system and returns the operation result to the testing machine through the network switching device and the gateway devices, and the testing machine analyzes and outputs the testing result. The traffic Internet-of-Things testing method mainly solves the problem that faults appearing in existing traffic Internet-of-Things engineering construction are difficult to disinter and position, and has the advantages that the testing efficiency is improved, the testing cost is reduced, and the traffic Internet-of-Things testing method is suitable for practical application.
Description
Technical field
The present invention relates to the method for testing in a kind of Internet of Things field, particularly relate to a kind of traffic Internet of Things method of testing based on fault simulation.
Background technology
Traffic Internet of Things is one of key areas of technology of Internet of things, based on technology of Internet of things such as RFID technology, sensor technology, self-organizing networks, by car, road, uniqueization of people's traffic key element accessing Internet network, realize interconnecting between traffic key element, running status and the function status of Real-time Obtaining traffic key element, by real-time simulation and decision-making, impel interaction and Collaboration between traffic key element, realize intelligent management and the optimized running of whole traffic system.
For guaranteeing the reliability service of traffic Internet of things system, be necessary it comprehensively to test, to find in time the defect that also eliminating system exists.The method of testing of applying in existing engineering practice can be divided into two classes, and a class is off-line test, and application traditional software method of testing, is injected into the historical data of collection in system under test (SUT) and implements to test; Can another kind of be on-line testing, adopts real equipment to build test environment, observe system under test (SUT) and normally move in real scene.Above two class testing methods respectively have superiority, but all have a problem, and the fault being difficult to occurring in the engineering construction of traffic Internet of Things is difficult to reappear and location.Wherein, off-line test is used historical data, and itself cannot simulate various failure conditions; And on-line testing belongs to sample testing, and due to factor interactions such as distinct device and environment, make the reproduction of fault and location very difficult.
Patent CN103281221A discloses a kind of fire-fighting Internet of things system method of testing, by setting up the virtual unit corresponding with real equipment, to realize the full test of fire-fighting Internet of things system.Patent CN102946616A discloses a kind of Internet of things middleware performance test methods, by Internet of Things simulation tool and performance tester, to realize the performance test of Internet of things middleware.Yet, virtual unit and simulation tool that above-mentioned patent is used all cannot for example, to the environmental factor of Internet of Things (traffic key element) modeling and simulatings, its test data needs artificial historical data or the parameter configuration device of adopting to generate, more cannot generate the test data under failure condition, also cannot carry out reproduction and the location of fault.
Because the defect that the method for above-mentioned existing test exists, the inventor is actively studied, and to founding a kind of new traffic Internet of Things method of testing based on fault simulation, can improve general existing survey equipment, method, makes it have more practicality.
Summary of the invention
Main purpose of the present invention is, overcome the defect that is difficult to reappear and locate traffic Internet of things system fault that existing method of testing exists, and provide a kind of novel traffic Internet of Things method of testing based on fault simulation, technical problem to be solved is to make it improve testing efficiency, reduce testing cost, thereby be more suitable for the test of actual traffic Internet of things system engineering, and there is the value in industry.
The object of the invention to solve the technical problems realizes by the following technical solutions.A kind of traffic Internet of Things method of testing based on fault simulation proposing according to the present invention, comprises that test machine is connected to system under test (SUT) by the network switching equipment and gateway device, and test machine is carried out following steps:
Step 1: set up traffic Internet of Things simulated environment, comprise and set up sensing equipment simulation model, Vehicle Ad-Hoc Network simulation model and traffic elements simulation model;
Step 2: generate emulation testing data, on the traffic Internet of Things simulated environment basis of setting up in step 1, generate emulation testing data under normal circumstances and the emulation testing data under failure condition;
Step 3: carry out test, the emulation testing data that test script generates to tested traffic Internet of things system forwarding step 2 by the network switching equipment and gateway device, collect tested traffic Internet of things system operation result and return to test machine by the network switching equipment and gateway device, test machine analysis also outputs test result.
Aforesaid a kind of traffic Internet of Things method of testing based on fault simulation, wherein said sensing equipment simulation model comprises the logical model of sensing equipment and the physical model of sensing equipment, described Vehicle Ad-Hoc Network simulation model comprises vehicle mobile model and traffic model, and described traffic flow model comprises auto model, road model and people's behavior model.
Aforesaid a kind of traffic Internet of Things method of testing based on fault simulation, emulation testing data under normal circumstances described in wherein said step 2 are by traffic elements simulation model generation primary data, and generate by the processing of sensing equipment simulation model and the transmission of Vehicle Ad-Hoc Network simulation model, emulation testing data under described failure condition are by traffic elements simulation model generation primary data, and the processing of the sensing equipment simulation model after triggering by fault, and the transmission of the Vehicle Ad-Hoc Network simulation model of fault after triggering and generating.
Aforesaid a kind of traffic Internet of Things method of testing based on fault simulation, the flow process of the test script described in wherein said step 3 comprises: the emulation testing data under normal circumstances that test machine generates step 2 are sent to tested traffic Internet of things system by the network switching equipment and gateway device, collect tested traffic Internet of things system operation result under normal circumstances, by gateway device and the network switching equipment, operation result is under normal circumstances returned to test machine; Under the failure condition that test machine generates step 2, emulation testing data are sent to tested traffic Internet of things system by the network switching equipment and gateway device, collect the operation result of tested traffic Internet of things system under failure condition and by gateway device and the network switching equipment, the operation result under failure condition are returned to test machine; By test machine, contrast the operation result under normal condition and failure condition, judge that whether tested traffic Internet of things system can effectively process this fault, outputs test result.
Aforesaid a kind of traffic Internet of Things method of testing based on fault simulation, wherein said sensing equipment logical model mainly comprises sensor type, response characteristic, the description of processing procedure, described sensing equipment physical model mainly comprises transducer static state or dynamic position relation, the description of interface protocol, described vehicle mobile model mainly comprises speed of a motor vehicle model, the description of pathfinding model, described traffic model mainly comprises networked physics layer, the description of link layer and Radio Broadcasting Agreements, described auto model mainly comprises common vehicle, the description of sensing equipment vehicle is installed, described road model mainly comprises road topology structure, traffic light models, the description of road speed-limiting messages, described people's behavior model mainly comprises pedestrian's mobility model.
By technique scheme, the present invention at least has following advantages:
(1) the present invention has overcome existing traffic Internet of Things method of testing and is difficult to failure condition to reappear and the shortcoming of location, can emulation generating various failure conditions tests system under test (SUT), and by contrasting with test result under normal circumstances, the effective location system failure, this has important actual application value to ensureing traffic Internet of Things engineering construction quality;
(2) the traffic Internet of Things Simulation Test Environment that the present invention sets up is except comprising hardware device simulation model, also comprise environmental key-element simulation model, support the automated execution of test script, and the input without real equipment and test site, there is raising testing efficiency, reduce the advantage of testing cost, the practical application of being more convenient for is promoted;
(3) the present invention is based on emulation mode, can carry out simulation modeling to the environment of internet of things of any system scale, and meet extensive, distributed, the Embedded technical characterictic of Internet of things system, except being applicable to the test of traffic Internet of Things, also can be applied to the Internet of things system test of other type.
The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Accompanying drawing explanation
Fig. 1 is work schematic diagram of the present invention;
Fig. 2 is emulation testing data product process figure of the present invention;
Fig. 3 is test script flowchart of the present invention.
10: traffic Internet of things system 11: gateway device
12: the network switching equipment 13: test machine
14: traffic Internet of Things simulated environment
15: sensing equipment simulation model
16: Vehicle Ad-Hoc Network simulation model
17: traffic elements simulation model
31: flow process 32: flow process
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described, and embodiments of the present invention include but not limited to the following example.
As shown in Figure 1, the traffic Internet of Things method of testing based on fault simulation comprises three steps: step 1 is set up traffic Internet of Things simulated environment; Step 2 generates emulation testing data; Step 3 is carried out test.The all operations on test machine 13 of above step, test machine 13 is directly connected with gateway device 11 by the network switching equipment 12 in test process.Gateway device 11 is communicated with traffic Internet of things system 10, and this traffic Internet of things system 10 is the system under test (SUT) the present invention relates to.
As shown in Figure 1, the traffic Internet of Things simulated environment 14 that step 1 is set up, comprises sensing equipment simulation model 15, Vehicle Ad-Hoc Network simulation model 16 and traffic flow model 17.Described sensing equipment simulation model 15 comprises sensing equipment logical model and sensing equipment physical model, wherein, this sensing equipment logical model mainly comprises the description of sensor type, response characteristic, processing procedure, and this sensing equipment physical model mainly comprises the description of transducer static state or dynamic position relation, interface protocol.Described Vehicle Ad-Hoc Network simulation model 16 comprises vehicle mobile model and traffic model, wherein, this vehicle mobile model mainly comprises the description of speed of a motor vehicle model, pathfinding model, and this traffic model mainly comprises the description of networked physics layer, link layer and Radio Broadcasting Agreements.Described traffic flow model 17 comprises auto model, road model and people's behavior model, wherein, this auto model mainly comprises common vehicle, the description that sensing equipment vehicle is installed, this road model mainly comprises the description of road topology structure, traffic light models, road speed-limiting messages, and this people's behavior model mainly comprises pedestrian's mobility model.
As shown in Figure 2, step 2 generates emulation testing data.It is on the traffic Internet of Things simulated environment basis of setting up in step 1, generates emulation testing data under normal circumstances and the emulation testing data under failure condition; Wherein, the flow process 31 that generates emulation testing data is under normal circumstances to generate initial emulated data by traffic elements simulation model 17, pass through successively the processing of sensing equipment simulation model 15, and the transmission of Vehicle Ad-Hoc Network simulation model 16, generate emulation testing data under normal circumstances.The flow process 32 that generates the emulation testing data under failure condition is to generate initial emulated data by traffic elements simulation model 17, the processing of the sensing equipment simulation model 15 after fault triggers successively, and the transmission of the Vehicle Ad-Hoc Network simulation model 16 after fault triggering, generate the emulation testing data under failure condition.Wherein, by triggering fault, revise sensor device simulation parameters or Vehicle Ad-Hoc Network simulation parameters, can emulation different faults situation.The combination of normal condition and different faults situation is the test use cases of method of testing of the present invention.
As shown in Figure 3, step 3 is carried out test.The workflow of test script is followed successively by: it is traffic Internet of things system 10 that the normal condition emulation testing data that test machine generates step 2 are sent to system under test (SUT) by the network switching equipment 12 and gateway device 13, collect tested traffic Internet of things system operation result under normal circumstances, and collected tested traffic Internet of things system operation result is under normal circumstances sent to test machine 13 by gateway device 13 and the network switching equipment 12.On the other hand, it is traffic Internet of things system 10 that the failure condition emulation testing data that test machine 11 generates step 2 are sent to system under test (SUT) by the network switching equipment 12 and gateway device 13, collect the operation result of tested traffic Internet of things system under failure condition, and the operation result under failure condition is sent to test machine 13 by gateway device 13 and the network switching equipment 12 by collected tested traffic Internet of things system.Operation result under normal circumstances of these test machine 13 comparative analyses and the operation result under failure condition, judge that whether system under test (SUT) can effectively process this fault, outputs test result.If detect tested traffic Internet of things system, have defect, under transmission and this failure condition, the emulation testing data of simulation model identical parameters, can reappear this fault.Meanwhile, the contrast by normal condition and different faults situation operation result can be easy to locate fault.
According to above-described embodiment, select any programming language, script or meet to describe the emulation tool requiring, just can realize the present invention.
Finally it should be noted that; the above is only the preferred embodiment of the present invention; should be understood that; for those skilled in the art; do not departing under the principle prerequisite of the traffic Internet of Things test that the present invention is based on fault simulation; can also make some improvement or be equal to replacement, these improvement and be equal to replacement and also should be considered as protection scope of the present invention.
Claims (5)
1. the traffic Internet of Things method of testing based on fault simulation, is characterized in that comprising that it is traffic Internet of things system that test machine is connected to system under test (SUT) by the network switching equipment and gateway device, and test machine is carried out following steps:
Step 1: set up traffic Internet of Things simulated environment, comprise and set up sensing equipment simulation model, Vehicle Ad-Hoc Network simulation model and traffic elements simulation model;
Step 2: generate emulation testing data, on the traffic Internet of Things simulated environment basis of setting up in step 1, generate emulation testing data under normal circumstances and the emulation testing data under failure condition;
Step 3: carry out test, the emulation testing data that test script generates to tested traffic Internet of things system forwarding step 2 by the network switching equipment and gateway device, collect tested traffic Internet of things system operation result and return to test machine by the network switching equipment and gateway device, test machine analysis also outputs test result.
2. a kind of traffic Internet of Things method of testing based on fault simulation according to claim 1, it is characterized in that the sensing equipment simulation model described in step 1 comprises the logical model of sensing equipment and the physical model of sensing equipment, described Vehicle Ad-Hoc Network simulation model comprises vehicle mobile model and traffic model, and described traffic flow model comprises auto model, road model and people's behavior model.
3. a kind of traffic Internet of Things method of testing based on fault simulation according to claim 1, it is characterized in that the emulation testing data under normal circumstances described in step 2 are by traffic elements simulation model generation primary data, and generate emulation testing data under normal circumstances by the processing of sensing equipment simulation model and the transmission of Vehicle Ad-Hoc Network simulation model, emulation testing data under described failure condition are by traffic elements simulation model generation primary data, and the transmission of the Vehicle Ad-Hoc Network simulation model after the processing of the sensing equipment simulation model after triggering by fault and fault triggering generates the emulation testing data under failure condition.
4. a kind of traffic Internet of Things method of testing based on fault simulation according to claim 1, the flow process that it is characterized in that the test script described in step 3 comprises: the emulation testing data under normal circumstances that test machine generates step 2 are sent to tested traffic Internet of things system by the network switching equipment and gateway device, collect tested traffic Internet of things system operation result under normal circumstances, by gateway device and the network switching equipment, operation result is under normal circumstances returned to test machine; Under the failure condition that test machine generates step 2, emulation testing data are sent to tested traffic Internet of things system by the network switching equipment and gateway device, collect the operation result of tested traffic Internet of things system under failure condition and by gateway device and the network switching equipment, the operation result under failure condition are returned to test machine; By test machine, contrast the operation result under normal condition and failure condition, judge whether tested traffic Internet of things system can effectively process this fault, output test result, if detect tested traffic Internet of things system, there is defect, under transmission and this failure condition, the emulation testing data of simulation model identical parameters, can reappear this fault.Meanwhile, the contrast by normal condition and different faults situation operation result can be easy to locate fault.
5. a kind of traffic Internet of Things method of testing based on fault simulation according to claim 2, it is characterized in that: described sensing equipment logical model mainly comprises sensor type, response characteristic, the description of processing procedure, described sensing equipment physical model mainly comprises transducer static state or dynamic position relation, the description of interface protocol, described vehicle mobile model mainly comprises speed of a motor vehicle model, the description of pathfinding model, described traffic model mainly comprises networked physics layer, the description of link layer and Radio Broadcasting Agreements, described auto model mainly comprises common vehicle, the description of sensing equipment vehicle is installed, described road model mainly comprises road topology structure, traffic light models, the description of road speed-limiting messages, described people's behavior model mainly comprises pedestrian's mobility model.
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| CN109496416A (en) * | 2016-08-25 | 2019-03-19 | 英特尔公司 | Future authentication and prototype are carried out to Internet of Things network |
| CN112188440A (en) * | 2020-09-30 | 2021-01-05 | 中国汽车工程研究院股份有限公司 | Vehicle-road cooperative parallel simulation test method and system |
| CN112868204A (en) * | 2018-11-02 | 2021-05-28 | 德国电信股份有限公司 | Method, system and simulation node for simulation of behaviour and/or performance of an internet of things (IOT) system, IOT system and IOT communication device, program and computer readable medium |
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| CN112188440A (en) * | 2020-09-30 | 2021-01-05 | 中国汽车工程研究院股份有限公司 | Vehicle-road cooperative parallel simulation test method and system |
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