# Integrated System for Official Vehicles with Online Reservation and Moving Path Monitoring
## 1 Introduction  
Official vehicle management systems usually have a global positioning system (GPS) and tracking system [1, 2, 3, 4, 5, 6, 7, 8]. The system also uses various technologies related to networking and online cloud services. [PERSON] et al. [1] proposed a vehicle tracking system with security services to monitor the driving behavior of employees or the usage of vehicles. In the tracking system, violation reports and the last parking positions are viewed on the web page of the system, and the users receive warnings via short message service (SMS) from the system. The driving status of a vehicle is monitored on mobile phones to help companies manage the vehicles for safety purposes. [PERSON] et al. [2] proposed a system that sends messages to users and turns off vehicles with sensing technologies and a global system for mobile communication (GSM) module. The coordinates of vehicles are collected in an XML file format, and the position is shown on Google Earth. The positioning error is corrected through the Kalman filter. [PERSON] et al. [3] used the GSM/GPS to obtain the location of a vehicle to prevent robberies and traffic accidents for the companies providing inter-city transportation services. Their system integrated an LCD screen in the onboard unit for users to find the exact location of a vehicle and estimate its arrival time. [PERSON] et al. [4] used infrared sensing technology to detect and send short messages about a stranger'sapproach to a parked vehicle and an accelerometer to detect the vehicle's vibration to prevent thefts. [PERSON] et al. [5] developed a system that sends the location of vehicles to a cloud server to track vehicles' movement by using GPS. Then, a geographic information system (GIS) is integrated to record a vehicle's moving path so that the manager guides the driver on the most effective path. [PERSON] et al. [6] used the received signal strength (RSS) of each access point (AP) of Wi-Fi by passengers to locate a bus and estimate the travel time on the same path and predict the arrival time. Due to the development of sensing technologies for autonomous driving, [PERSON] and [PERSON] used various sensors to detect vehicles in motion [7]. For example, a vibration sensor senses a collision, an ultrasonic wave measures the distance between the vehicles, and the light signal and alarm warning allow the user to take emergency measures immediately. In an accident, the GSM system automatically sends an alarm to the rescue team or family members. To better manage vehicle conditions, [PERSON] et al. [8] developed a vehicle health monitoring system in 2021. Through the Internet of Things, the parameters such as fuel consumption, tire pressure, and power management of the vehicle are monitored, and the vehicle fault data are transmitted to the user's mobile phone through the onboard diagnostics (OBD). Administrators use a cloud server to monitor vehicles' status and prevent unexpected malfunctions, saving the cost of repair and fuel. To improve the efficiency of business trips and sharing economy, companies have been leasing vehicles for official use in recent years. However, the problems of private use, low use rate, and inappropriate management need to be solved [1; 2; 3; 9]. According to [PERSON] et al. [9], the abuse of public equipment of a company has an obvious impact on the company's financial situation in the short term and might become a common habit as a culture in the long term. Mismanagement of public equipment such as official vehicles has a serious impact, too. Therefore, for companies to manage their official vehicles efficiently, an integrated system is required containing the above-mentioned functions. Thus, we propose a system that enables online reservation, moving path monitoring, and the exact location of official vehicles to provide a convenient management system in real-time. The system is designed to contain a set-top box, key cabinet box, Line Bot, and a cloud database system.