{'fraction_non_alphanumeric': 0.015482695810564663, 'fraction_numerical': 0.00273224043715847, 'mean_word_length': 5.038461538461538, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Accelerometer Sensor Network For Reliable Pothole Detection

This paper represents a practical fully automated solution for evaluating the road surface in a desired section. The suggested system for pothole detection uses detection node with two accelerometers. Its main goal is to make analysis of the potholes on the road surface and to visualize on the map the bigger ones, thereby increasing the safety and comfort of all passengers. The system exploits two detection methods, based on z-axis algorithms, to determine the number and location of potholes using a mobile phone and an external controller with a GY-521 sensor. When both devices detect a pothole, the sensor node sends an alert with GPS coordinates to a central node, which maintains the database. In such manner, the system response is delayed inversely with the route load, but the reliability increases significantly. The sensor network backbone takes advantage of the existing mobile network technologies. The proposed system is fully compatible with the concepts for smart cities and easy can become part of their environment.