Ground smart induction system effect and application
2021-11-23 14:07:08
As we all know, frequent traffic accidents on special road sections, severe traffic jams on urban roads, and lack of traffic guidance information, a new generation of ground intelligence guidance system can present road traffic conditions in real time, accurately and intuitively. It will become the intelligent eyes of the over-the-horizon traffic guidance on the road, which can effectively relieve traffic jams, increase the coverage rate of automatic detection of operational safety events, and detect the early warning rate in time.
01. What is the ground intelligence guidance system?
system structure
The ground intelligence guidance system is based on "cloud computing" and "Internet +" technology, builds a severe weather traffic safety data platform, and uses data collected by LGS and other series of road surface equipment to analyze the massive data in the cloud to obtain the intrinsic environment. Factors, the road safety management from "after-treatment" to "pre-predicted", and gradually transition to the accident early warning and intelligent accident prevention.
The basic physical facilities required by the system utilize geomagnetic induction raised road signs and road collision hotspot detectors, and expands according to actual conditions, and increase traffic data acquisition channels, such as vehicle speed, road conditions, weather conditions, etc., to obtain more abundant data for cloud computing. , Build a more complete cloud computing system.
The platform layer is built using cloud computing technology. It is the core layer of big data processing and responsible for cloud-side access, network management and control, data storage and analysis of roadside devices, and supports upper-layer user applications. It provides analysis and processing calculations for actual needs. ability.
The application layer of the system serves as an interface for interaction with the user and provides traffic managers, drivers, and decision makers with analysis results and interactive means based on data support. The application layer has good scalability and provides external interfaces to facilitate interfacing with existing systems of traffic management departments and data demand departments.
Technical features
Optical power supply technology: The system uses solar photovoltaic, with low-power circuits to achieve normal continuous operation even without long-term sunlight. For rain, fog, snow, and other harsh environments, the system has a special application model to provide high-definition road direction linear induction, solving the problem of outdoor power supply.
Wireless synchronization technology: It is not difficult to achieve synchronous flashing in a wired device, but the use of wired connection in road traffic environment has no use value. The main reason is that the cost of laying the connection line is high and it is very difficult after the line failure. A series of problems such as the failure point, signal loss, etc., ground-based smart induction system equipment synchronization is preferred to use wireless communication technology. In this system, solar prominence road signs use satellite positioning timing and wireless time-stamp forwarding technology to achieve high accuracy of the whole system. Synchronize.
Wireless remote control technology: The system uses wireless long-range hierarchical wireless control modules composed of hierarchical wireless control modules. It adopts hierarchical low-power wireless modules and adopts wired to wireless or wireless to wireless to achieve large areas. The wireless coverage, wired to wireless relay form is a frequency digital radio transmission module as a local control unit, using a wired potential control interface or other interface to receive the superior control commands, and the wireless to wireless relay form uses a frequency of digital wireless transmission. The module acts as a local control unit and is responsible for managing the controlled devices in the local coverage area.
Dynamic wake display technology: Provides a set of high-visibility dynamic wakes to rear vehicles through artificial intelligence in a low-visibility environment. The wake is synchronized with the vehicle's driving process. The length of the wake can be defined by the artificial intelligence setting and there will be traffic ahead. The information is forwarded to the rear of the vehicle in advance to meet the minimum distance between the safe vehicles in harsh environments.
02. What can be achieved?
Our country has a vast territory, a wide range of terrains, and a complex and changeable environment. The expressway has a large capacity and a high speed of travel. This brings convenience to people's travel life and brings great challenges to traffic safety operations. The intersection of urban roads is a place where vehicles and people gather together. It is a hub of urban road traffic and a control point for design, organization, and road traffic management.
The driving environment of the tunnel section is relatively dark, visibility is low, and the illumination is unevenly distributed, which directly affects the comfort and driving safety of the driver's driving environment. Based on a series of principles that practically reduce highway traffic accidents, improve urban traffic operation efficiency, improve congestion, effectively improve the driving environment of tunnel sections, and improve driver's visual comfort, ground-induced intelligent systems have emerged as the times require.
The main infrastructure in this system is a high-precision synchronous active flashing warning sign with adjustable brightness and frequency. Continuous laying can form linear optical lanes, which can clearly depict the outline of the road or obstacle area. In particular, traffic information can be displayed with high brightness in fog, rain, and night, and flashing lights play a clear guiding role.
In addition, the system is based on Boda's pilot-inducing technology, which promotes vehicle-road coordination technologies in phases and provides customized solutions in a variety of smart configurations. In addition, the system can cooperate with road information boards, variable speed limits, intelligent voice systems, and monitoring systems, and can be combined and expanded to achieve multi-functional and diversified results.
Typical road surface application effect chart
(freeway ramp application renderings)
(tunnel application renderings)
03, application scenarios
Application 1: High-speed and Viaduct Drainage
In the low visibility environment, the synchronously-rising road sign in the system is automatically turned on to remind the rear of the vehicle that it is about to enter the ramp, pay attention to the driving direction and traffic safety, and reduce the occurrence of traffic accidents.
Application II: Preemptive driving active induction
In the system, the synchro-convex road sign automatically opens, forming an enhanced road profile, which provides a clearer driving guide for the rear vehicles.
Application 3: Rear-mounted to prevent rear-end induction
After the vehicle in front of the current lane is running, the geomagnetic raised road sign in the system is automatically turned on, and a dynamic wake is formed behind it to indicate whether there is a vehicle ahead of the current vehicle lane and the distance to the preceding vehicle. The trail length will provide a follow for the rear vehicle. The safety clearance of the state to avoid rear-end collisions between the front and rear vehicles.
Application 4: Anti-collision warning when entering the tunnel
There is a zone where the tunnels alternate between light and dark, and the lanes can't even clearly distinguish the lanes. In the system, the roads with the wireline synchro-convex roads are open, the road outlines are displayed, and the lights flash synchronously and dynamically, giving the driver a clear warning and paying attention to the driving direction.
Application 5: Visual guidance in the tunnel
The tunnel section is relatively narrow, the environment is relatively dark, the visual effect is not good, the illumination is unevenly distributed, and usually the construction time is long, the reflective guiding effect of the ground contour is not good, the road contour prompts and the visual nerve stimulation to the driver is not enough, when driving through , Easy to produce visual fatigue, the system in the wire synchronization of protruding road signs open, different flashing frequency and brightness levels, strengthen the road on both sides of the marking, intermittent stimulation of driving drivers pay attention to the distance with the car.
Application 6: Congestion Road Sections and Obstacle Warning
The complexity of urban life directly affects the variability of congested road sections on urban roads. The system will control the opening of wirelessly protruding road signs for corresponding congested road sections based on real-time traffic information, indicating traffic and pedestrians in real time, and paying attention to the road conditions ahead.
Under the environment of low visibility, the solar synchro-protruding road sign is actively activated in the system, and the synchronous light flashes can clearly indicate the position and size of the obstacle, and remind the driver to pay attention to the obstacle in front.
Application 7: Night Driving Guidance
When the energy level at night is low, the solar synchro-protruding road sign in the system adjusts to the local ephemeris cycle to enter the open state, clearly shows the roadside markings, and improves the safety of driving.
Application 8: Pedestrian Safety
When the traffic speed is high, pedestrians cannot cross the street in front, and the time for slowing down the speed is too short. There are hidden dangers of traffic accidents. At this time, the solar prominence road signs installed on both sides of the crosswalk form a linear visual effect and play an early warning role.
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