Design of Remote Monitoring System for New Energy Vehicles Based on Data Acquisition and Transmission

This paper designs a new remote monitoring system for new energy vehicles based on data acquisition and transmission, hoping to make up for the shortcomings of the existing system. The following article will start from the shortcomings of the existing system, then describe the performance of the new system, and finally describe the design scheme of the vehicle terminal of the system in detail. The performance of the new system will be even better, and it will have positive significance for the improvement of other remote monitoring devices.

A Developed Vehicle Terminal of Time-Sharing Rental Electric Vehicle Using Acoustic Communication Technology

With the rapid development of the time-sharing rental business model for electric vehicles, the remote control speed of the electric vehicle terminals device, as the most important part of the whole time-sharing rental business process, affects directly the integrity of the business process and the using feelings of consumers. However, the traditional remote control system by using general packet radio service (GPRS), 3G, and 4G long term evolution (LTE) wireless communication methods responds longer and slower in weak signal area, which directly affects the user’s feeling and management strength of platform management center for the electric vehicle. Therefore, in this paper, (1) the acoustic communication technology as an auxiliary communication method is introduced in the novel vehicle terminal; (2) In order to increase the anti-noise ability, “amplitude-shift keying (ASK) + frequency-shift keying (FSK)” compound modulation and “double microphone input” technology are used in the vehicle terminal, which develops a novel vehicle terminal with the high anti-noise acoustic wave communication function for the electric vehicle in time-sharing rental mode; and (3) the mobile phone acoustic waves can be used by the proposed vehicle terminal to control the door of electric vehicle, which provides a firm technical support for ensuring the fluency and completeness of the whole process. Tests prove that the acoustic communication technology of the novel vehicle terminal can realize the rapid response of the vehicle terminal, which effectively solves the problem of a prolonged and slow response in the vehicle terminal of the electric vehicle in the weak signal area.

Task Offloading Based on Lyapunov Optimization for MEC-Assisted Vehicular Platooning Networks

Due to limited computation resources of a vehicle terminal, it is impossible to meet the demands of some applications and services, especially for computation-intensive types, which not only results in computation burden and delay, but also consumes more energy. Mobile edge computing (MEC) is an emerging architecture in which computation and storage services are extended to the edge of a network, which is an advanced technology to support multiple applications and services that requires ultra-low latency. In this paper, a task offloading approach for an MEC-assisted vehicle platooning is proposed, where the Lyapunov optimization algorithm is employed to solve the optimization problem under the condition of stability of task queues. The proposed approach dynamically adjusts the offloading decisions for all tasks according to data parameters of current task, and judge whether it is executed locally, in other platooning member or at an MEC server. The simulation results show that the proposed algorithm can effectively reduce energy consumption of task execution and greatly improve the offloading efficiency compared with the shortest queue waiting time algorithm and the full offloading to an MEC algorithm.

ANALISIS KARAKTERISTIK DAN TINGKAT PELAYANAN FASILITAS PEJALAN KAKI DI KAWASAN TERMINAL KENDARAAN UMUM KOTA DEPOK

The study area was conducted in one of the Public Vehicle Terminals located in Depok (Margonda). The area of Public Vehicle Terminal located in Depok city is not only the center of the area where the temporary stops of public transportation to raise and lower the passengers, there is also a shopping center which causes pedestrian lane always crowded by pedestrians. Therefore, the research aimed to increase the knowledge and understanding about the comfort of a pedestrian path infrastructure, as well as to know the variable values of pedestrian characteristics, the relation of speed variables with the density, and the level of service of the pedestrian facility. Thus can be known the development function of the pedestrian facility. And the method used in the research refers to Regulation of Minister o f Public Work No. 03/PRT/M/2014. The data obtained from the observation are: the number of pedestrians, pedestrian travel time, and visual observation in the field. Data is processed into pedestrian characteristic variables such as: current, speed, density , and space. To obtain the relationship between speed variables and density variables according to Greenberg method, as well as the value form of capacity and service level of pedestrian facilities in Depok City Public Vehicle Terminal Area. And the improvement of pedestrian facilities can be maintained in the Depok City Public Vehicle Terminal Area. In accordance with the guidelines referring to the Regulation of the Minister of Public Works No. 03/PRT/M/2014.

MAC2: Enabling multicasting and congestion control with multichannel transmission for intelligent vehicle terminal in Internet of Vehicles

Internet of Vehicles has become a promising way to realize the evolution from vehicular ad hoc networks and next-generation intelligent transportation system into future autonomous driving scenarios, clean-energy intelligent vehicles, and Smart Cities. However, multicasting service messages on available service channels and periodic exchanges of beacon messages on control channel cause the problem of efficiently scheduling those messages via multichannel transmission for intelligent vehicle terminal, to support real-world applications in Internet of Vehicles scenario. In this article, we investigate the intelligent vehicle terminal architecture and, particularly, design the wireless communication board by incorporating multicasting and congestion control modules. Especially, we present a multicast data delivery scheme with random-delay lowest-cost constraint to transfer service messages on service channels. Furthermore, a priority-aware congestion control scheme is also proposed by considering differentiated priorities of beacon messages on control channel, to cope with the congestion problem at bottleneck vehicle node. Based on the proposed schemes, we build up the RanLow (Random-delay Lowest-cost) module and the priority-aware congestion control (PARCEL) module by enabling multicasting and congestion control together in wireless communication board of the intelligent vehicle terminal architecture. Finally, the experimental results and comparison show that our devised RanLow module and PARCEL module are feasible and more efficient than existing schemes.