The application of TTCN-3 in M2M Testing

Transcription

1 The application of TTCN-3 in M2M Testing Xiaohong Huang, Ruiping Zhu, Weihai Li, Yan Ma TTCN-3 User Conference 2010 June , Beijing, CHINA

2 Outlines Introduction M2M Network Architecture TTCN-3 based M2M Testing Platform Testing Procedure and Results Conclusion Page 第 2 页 2

3 Introduction What is M2M? Machine to Machine (M2M) - key part of the Internet of Things Allows both wireless and wired systems to communicate with other devices of the same ability Involves communication without (or only limited) human intervention Enable the flow of data between machines and machines and ultimately machines and people Four basic operations for M2M Collection of data Transmission of selected data through a communication network Assessment of the data Response to the available information Page 第 3 页 3

4 Introduction M2M Applications Security Surveillance, alarms, people tracking Transportation Traffic monitoring, fleet management, toll payment Health care E-health Manufacturing Production chain monitoring and automation Utilities Measurement, provisioning and billing of utilities, such as oil and water Facility control Home, building, campus Page 第 4 页 4

5 Introduction TTCN-3 based M2M Testing Platform Object: To develop a testing platform so that M2M device manufacturers can quickly and efficiently obtain regulatory and approval for their products Initiator: ChinaMobile Developer: BUPT SUT: 5 companies Page 第 5 页 5

6 Outlines Introduction M2M Network Architecture TTCN-3 based M2M Testing Platform Testing Procedure and Results Conclusion Page 第 6 页 6

7 M2M Network Architecture Application Gateway M2M Platform Server M2M terminal Internet GPRS GGSN Router Admin Page 第 7 页 7 Business Application Server

8 Key Elements M2M terminal A device capable of replying to request for data contained within those devices or capable of transmitting data contained within those devices automatically M2M platform Provides different access methods for terminals and uniform M2M terminal management and authentication functions Application gateway Service authentication for SMS communication GGSN Supports GPRS communication between M2M terminal and platform Admin Configuration, Performance, Fault, Security Management Page 第 8 页 8

9 Communication Protocol Stack Communication Protocol Stack between M2M terminal and M2M Platform M2M Terminal/M2M Platform M2M Protocol M2M Terminal/M2M Platform M2M Protocol SMS/USSD TCP or UDP IP SMS/USSD TCP or UDP IP Carrier Carrier Page 第 9 页 9

10 Outlines Introduction M2M Network Architecture TTCN-3 based M2M Testing Platform Testing Procedure and Results Conclusion Page 第 10 页 10

11 TTCN-3 based M2M Testing Platform Requirements SUT: M2M Terminal Conformance testing Testing language: TTCN-3 Reference Specification <Protocol Interface Specification for M2M> <The Test Specification of M2M Terminal> Development platform IBM Tester Test Architecture Page 第 11 页 11

12 System Architecture Abstract Test Suite Covers most functions of M2M Adapter Supports TCP/UDP, SMS communication Codec Data format: TLV CRC,MD5, 3DES supported Page 第 12 页 12

13 Abstract Test Suite Design Normal and abnormal cases Different carriers (SMS, GPRS) Authentication function Sequence number management Parameter setting Terminal state monitor Terminal to terminal data exchange Terminal information report Software download and terminal upgrade Multi-package data transport So far 176 test cases developed Page 第 13 页 13

14 Adapter and Codec Architecture Test Component TTCN-3 Runtime Interface (TRI) Main Thread Port Identification Adapter Computation External Function MD5 Packet length Receiving Thread Queueing Encode Codec Decode Packet Identification Packet Identification Encode Packet Processing Packet Processing Decode Sending Packet Encapsulation Packet Parsing Port Identification Network Page 第 14 页 14

15 Testing Result Example 1 Testing Result in Tester Page 第 15 页 15

16 Testing Result Example 2 Testing Report Page 第 16 页 16

17 Testing Result Example 2 Detailed Info. in the Report Page 第 17 页 17

18 Outlines Introduction M2M Network Architecture TTCN-3 based M2M Testing Platform Testing Procedure and Results Conclusion Page 第 18 页 18

19 Testing Procedure and Results Application Approval Testing Result Publishing Testing site ChinaMobile Research Institute Products have been tested From 5 companies More than 80 test cases tested Most of the SUT passed over 90% of the test 80 more to be tested Covers most of the normal and abnormal cases Page 第 19 页 19

20 Plugtests Page 第 20 页 20

21 Outlines Introduction M2M Network Architecture TTCN-3 based M2M Testing Platform Testing Procedure and Results Conclusion Page 第 21 页 21

22 Conclusion M2M technologies has become a key part of the Internet of Things. It is extreme important to deliver uniform testing platform, from which the M2M products can achieve a fast and automatic product testing. This work is a valuable experience for TTCN-3 users and the researchers of Internet of Things. Testing is able to help on the definition of M2M testing specification. More functions to be added, for example automatically testing. Page 第 22 页 22

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