Yong-bae Kim, Juyong Back, Jongweon Kim, Journal of Internet Computing and Services, Vol. 23, No. 3, pp. 47-56, Jun. 2022
10.7472/jksii.2022.23.3.47, Full Text:
Keywords: Blockchain, DTG(Digital Tacho-Graph), Hyperledger Fabric, lightweight blockchain, Random Seed, SDRS(Safe Driving Reward System), SDCN(Safe Driving Channel Network), SDRCN(Safe Driving Reward Channel Network)

Abstract

The safe driving reward system aims to reduce the loss of life and property by reducing the occurrence of accidents by motivating safe driving and encouraging active participation by providing direct reward to vehicle drivers who have performed safe driving. In the case of the existing digital tachograph, the goal is to limit dangerous driving by recording the driving status of the vehicle whereas the safe driving reward system is a support measure to increase the effect of accident prevention and induces safe driving with financial reward when safe driving is performed. In other words, in an area where accidents due to speeding are high, direct reward is provided to motivate safe driving to prevent traffic accidents when safe driving instructions such as speed compliance, maintaining distance between vehicles, and driving in designated lanes are performed. Since these safe operation data and reward histories must be managed transparently and safely, the reward evidences and histories were constructed using the closed blockchain Hyperledger Fabric. However, while transparency and safety are guaranteed in the blockchain system, low data processing speed is a problem. In this study, the sequential block generation speed was as low as 10 TPS(transaction per second), and as a result of applying the acceleration function a high-performance network of 1,000 TPS or more was implemented.

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