Intelligent soldier monitoring terminal
The intelligent safe driving guidance system aims to scientifically improve the road perception and control ability of high-speed driving under extreme weather, reduce the occurrence of an accident and avoid the occurrence of a second accident, improve the efficiency of road traffic, and fully protect the life and property safety of drivers and passengers through the construction of intelligent traffic environment perception and early warning and induction system.
(1) Field beam
This section is located in the new shangrao north double-track section of the project, close to lingshan, a tourist attraction in Shangrao city. The surrounding mountains are overlapping and the environment is beautiful. According to experience, it belongs to the section with frequent fog, mass fog and water fog. The length of fan Super large bridge is about 1800 meters, the length of safe driving guidance system designed in this time is 2000 meters, covering the bridge area.
(2) Jiepai Xinjiang bridge section
It is a large bridge across xinjiang River, the main tributary of Ganjiang River, which belongs to the node project. The length of this design is 2000m.
(3) Connecting Yujiang to Yingtan Junction
The design of this section system is mainly based on meteorological environment data and historical traffic accident data. According to the owner's reflection, there are frequent irregular fog in this section, resulting in vehicles not keeping enough safe distance and causing many serious traffic accidents. At present, the management unit mainly sets flash lights along the way to remind drivers to pay attention to driving safety. In this design, the length of the safe driving guidance system is 3000 meters.
System structure
The system consists of intelligent induction front end equipment, transmission system and platform software. The intelligent induction front end equipment also includes intelligent induction device (Internet of Things intelligent fog-penetrating induction lamp), visibility meter, traffic data sensor, local control host, etc. The installation spacing of Internet of Things intelligent fog-penetrating induction lamp is 15m.
System goals
(1) the system according to the meteorological environment monitoring system for acquisition of visibility, rain, snow, intensity of illumination and driving environment data, control the roadside intelligent induction device (Internet of things intelligent wear fog induction lamp), through the different brightness, color, and flicker frequency combination for targeted traffic guidance, so as to realize the fog, rain and snow, fog and other complex weather conditions, highway adaptive safety induction.
(2) Enhance the guidance of drivers' driving sight in complex traffic environment, effectively reduce traffic accidents caused by unpredictable speed, distance and road events due to poor sight or beyond visual distance, and improve the safety service level of expressway operation and road traffic efficiency.
(3) On the premise of ensuring driving safety, reduce the time and times of road closure, and maximize the highway transportation capacity.
(4) Provide effective control and management measures, establish a management platform for safe driving under extreme weather conditions, and improve the overall level of emergency command and dispatch and scientific and technical service level of the section management unit.
System function
The intelligent safe driving guidance system has the function of road contour reinforcement and induction in extreme weather, curve auxiliary function, vehicle distance warning function, driving event warning function in front, meteorological and traffic data collection function, intelligent fog lamp wireless communication function, remote platform/automatic control function.
(1) Strengthening and inducing function of road contour
The system can be divided into at least four levels according to the field visibility, rain and snow and other meteorological conditions. According to the preset threshold, the system can automatically switch the working mode, so as to guide the vehicle to run safely in extreme weather.
A) Standby state: when visibility is greater than a certain threshold (500 meters or more is recommended), the intelligent induction device (Intelligent fog-penetration induction lamp of the Internet of Things) is in the wake tracking state at this time, and the power consumption of the device is extremely low and approaches zero due to the good sight of the driver.
B) Road wheel corridor enhancement mode: When visibility is greater than and less than a certain threshold (recommended for more than 200 meters and less than 500 meters), the system into induction mode, intelligent induction device (Internet of things intelligent wear fog induction lamp) automatically open yellow light low frequency (1 / s) synchronous flash, 50% brightness, to use dynamic lighting to remind drivers drive carefully, marked road alignment, guide the vehicle.
C) Driving induction mode: When visibility is greater than and less than a certain threshold (recommended for more than 100 meters and less than 200 meters), the system into induction mode, intelligent induction device (Internet of things intelligent wear fog induction lamp) automatically open yellow light high frequency (2 times per second) synchronous flash, 100% brightness, to use dynamic lighting to remind drivers drive carefully, marked road alignment, guide the vehicle.
4) Anti-rear-end collision warning mode: When visibility is less than a certain threshold (less than 100 meters is recommended), the system enters the anti-rear-end collision warning mode, and when no vehicle passes by, the intelligent guidance device (Intelligent Fog-penetration guidance light of the Internet of Things) shows yellow light; When there are vehicles through, in the car after a certain distance of yellow light is converted into a red light, the cars going after a certain time (determined) by car from the control strategy, and then by the red light switch for the yellow light (red warning interval with the vehicle moving forward), so as to form a red trail after the vehicle lights, warning after the car to avoid oncoming wake, reasonable, To prevent serious traffic accidents such as rear-end collisions.
(Note: ① As the weather change status, traffic flow, management demands and early warning mechanism of different sections may be different, the mode corresponding to the classification strategy of the above guidance mode can be flexibly set according to the actual management situation, and the opening or closing of the system should also be determined by other regional meteorological factors. (2) In view of the complexity and variability of various meteorological environments, meteorological data is an important basis for judging whether the system is running. The system has the function of calibration and correction of various meteorological values.
(2) Wireless communication function of intelligent induction device (Intelligent fog-penetrating induction lamp of Internet of Things)
Intelligent induction device (iot wear smart fog induction lamp) using wireless communication technology, wireless communication function between fog lamps, and communication has the function of fault tolerance and resistance to damage, when the 75 m range includes intelligent induction lamp was damaged, does not affect the whole system intelligent induction device (Internet of things intelligent wear fog induction lamp) control and use.
(3) Remote platform/automatic control function
The system has wireless communication function between remote control system and field equipment, automatic and manual dual-mode combination function, independent remote management platform and implant function of third-party platform/system, remote control of equipment and basic mode setting can be carried out through mobile APP.
