A highway reconstruction and expansion project site traffic safety monitoring system
By using a multi-point three-dimensional monitoring system and wireless communication technology, combined with high-definition cameras, radar sensors, infrared sensors, and drones, the problem of insufficient monitoring range and accuracy during highway reconstruction and expansion construction has been solved. This has enabled real-time multi-dimensional early warning and flexible equipment adjustment, thereby improving traffic safety at the construction site.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA ACAD OF TRANSPORTATION SCI
- Filing Date
- 2025-06-12
- Publication Date
- 2026-06-02
AI Technical Summary
Traditional monitoring methods are insufficient in terms of the scope and accuracy of traffic flow monitoring during highway reconstruction and expansion. The early warning mechanism lacks dynamic adaptability, the system coordination and data transmission efficiency is low, and fixed equipment is difficult to adjust flexibly with the construction progress.
A multi-point three-dimensional monitoring system is adopted, which combines high-definition cameras, radar sensors, infrared sensors, drones and early warning vehicles. Real-time data transmission and dynamic early warning are achieved through 5G and LoRa wireless communication modules. The early warning device is mobile and provides multi-modal warnings, adapting to the mobility of construction.
It enables real-time, multi-dimensional monitoring and early warning of traffic flow, improving the monitoring range and accuracy, adapting to changes in construction progress, and reducing equipment wiring and maintenance costs.
Smart Images
Figure CN224318085U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of highway safety monitoring technology, specifically a traffic safety monitoring system for highway reconstruction and expansion projects. Background Technology
[0002] Highway reconstruction and expansion projects typically require the closure of some lanes, altering traffic flow paths, reducing capacity, and increasing the risk of congestion or rear-end collisions. Traditional monitoring methods (such as fixed cameras and manual patrols) only cover a limited area near the construction site and cannot provide real-time dynamic monitoring of traffic flow further upstream. For example, when upstream traffic density suddenly increases or abnormal driving behavior occurs (such as speeding or forced lane changes), traditional equipment struggles to capture signals and issue warnings in a timely manner, leading to delayed safety measures in the construction area. Furthermore, relying solely on visual monitoring is susceptible to weather conditions (such as heavy rain or fog) and lighting conditions, resulting in blind spots and an inability to accurately obtain crucial data such as vehicle speed and spacing, making it difficult to predict risks in advance.
[0003] Secondly, the warning equipment mainly consists of static warning signs (such as speed limit signs and warning signs), which offer a limited range of warnings, generally relying solely on visual alerts and lacking multi-dimensional warning methods (such as voice reminders and sound-light linkage). This limits their effectiveness in alerting drivers. Especially at night or when drivers are distracted, the warning effect of static signs is significantly reduced, making it difficult to effectively guide vehicles to slow down or change lanes, thus increasing safety hazards in the construction area.
[0004] Secondly, most devices (such as cameras and alarms) operate independently, lacking an effective communication and coordination mechanism. Furthermore, highway reconstruction and expansion projects are characterized by high mobility and dispersed work sites, making it difficult to flexibly relocate traditionally fixed monitoring equipment as construction progresses. For example, as construction progresses, existing monitoring equipment needs to be disassembled, rewired, and reinstalled, which is time-consuming, labor-intensive, and can easily create monitoring gaps. Utility Model Content
[0005] To address the aforementioned problems, the purpose of this utility model is to provide a traffic safety monitoring system for highway reconstruction and expansion projects, in order to solve the problems of insufficient traffic flow monitoring range and accuracy, lack of dynamic adaptability of early warning mechanisms, and low efficiency of system coordination and data transmission caused by traditional monitoring methods.
[0006] To solve the above-mentioned technical problems, the embodiments of this utility model provide the following technical solutions:
[0007] A traffic safety monitoring system for highway reconstruction and expansion projects includes at least three early warning devices installed upstream of the highway reconstruction and expansion construction site and a ground station installed within the highway reconstruction and expansion construction site. The early warning devices are wirelessly connected to the ground station, and the ground station is wirelessly connected to an on-site early warning vehicle, a remote server, and an on-site drone via a 5G network. The early warning devices include a field controller and a high-definition camera, radar sensor, infrared sensor, solar power module, wireless communication module, voice alarm, display screen, and strobe light electrically connected to the field controller.
[0008] Optionally, the on-site drone is equipped with a 5G wireless communication module to monitor traffic flow information from the highway reconstruction and expansion construction site to an altitude of at least 500 meters upstream and wirelessly transmit it to the ground station in real time.
[0009] Optionally, the on-site early warning vehicle patrols the roadside at least 300 meters upstream from the highway reconstruction and expansion construction site, and the on-site early warning vehicle is equipped with a 5G wireless communication module to send traffic flow information to the ground station.
[0010] Optionally, the ground station is an industrial computer and is connected to a 5G wireless communication module and a LoRa wireless communication module.
[0011] Optionally, the early warning devices are spaced at least 100 meters apart, and the early warning device closest to the renovation and expansion construction site is at least 100 meters away from the renovation and expansion construction site.
[0012] Optionally, the field controller is a microcontroller-based control board.
[0013] Optionally, the wireless communication module is a LORA wireless communication module.
[0014] Optionally, the warning device is equipped with rollers at its bottom.
[0015] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:
[0016] 1. This utility model constructs a three-dimensional monitoring network of "ground + air" by using at least three early warning devices upstream, an on-site early warning vehicle, and drones. By combining high-definition cameras, radar, and infrared sensors, it overcomes the limitations of weather and distance, captures data such as traffic density and speed in real time, detects anomalies in advance, buys time for early warning, and solves the problems of small monitoring range and single data in traditional monitoring.
[0017] 2. This utility model achieves progressive speed limits through a warning device, combined with multimodal warnings including voice, display screen, and flashing lights, resulting in significant effects at night and in inclement weather. When traffic is heavy, the flashing lights automatically activate, dynamically adjusting the warning information to guide drivers to gradually reduce speed, preventing accidents caused by sudden speed limit changes and improving the targeting and effectiveness of the warnings.
[0018] 3. This utility model achieves real-time data transmission through 5G and LoRa modules, enabling automatic dispatching of the early warning device by the ground station and rapid command response. The early warning device is equipped with wheels at the bottom, allowing for rapid movement with the construction progress without the need for rewiring, thus solving the problem of time-consuming disassembly and assembly of fixed equipment. Solar power ensures continuous operation, reducing manual maintenance costs and adapting to the needs of mobile construction. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall principle of the on-site traffic safety monitoring system for highway reconstruction and expansion projects according to this utility model.
[0020] Figure 2 This is a schematic diagram of the on-site traffic safety monitoring system for highway reconstruction and expansion projects according to this utility model.
[0021] Figure 3 This is a schematic diagram of the early warning device of the on-site traffic safety monitoring system for highway reconstruction and expansion projects according to this utility model;
[0022] Figure 4 This is a schematic diagram of the early warning device of the on-site traffic safety monitoring system for highway reconstruction and expansion projects according to this utility model. Detailed Implementation
[0023] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.
[0024] like Figure 1 As shown, a traffic safety monitoring system for highway reconstruction and expansion projects includes at least three early warning devices 1 installed upstream of the highway reconstruction and expansion construction site and a ground station 2 installed within the highway reconstruction and expansion construction site. The early warning devices 1 are wirelessly connected to the ground station 2, and the ground station 2 is wirelessly connected to the on-site early warning vehicle 4, the remote server 5, and the on-site drone 6 via a 5G network 3.
[0025] Figure 2 This is a schematic diagram of the deployment of this monitoring system at the highway reconstruction and expansion project site. At the highway reconstruction and expansion construction site 8, a row of construction protection cones 7 is set up on the outer side of its upstream side. Other auxiliary facilities are omitted. At least three early warning devices 1 are set up at a certain distance upstream of the highway reconstruction and expansion construction site. The early warning devices 1 are at least 100 meters apart, and the early warning device 1 closest to the reconstruction and expansion construction site is at least 100 meters away from the reconstruction and expansion construction site.
[0026] like Figure 3As shown, the early warning device 1 includes a field controller 11 and a high-definition camera 12, a radar sensor 13, an infrared sensor 14, a solar power module 15, a wireless communication module 16, a voice alarm 17, a display screen 18, and a strobe light 19, all electrically connected to the field controller 11.
[0027] In addition, to monitor traffic flow over a wider area and better implement early warning, the system also uses early warning vehicle 4 and on-site drone 6 to conduct monitoring and early warning over a larger area upstream. On-site drone 6 monitors traffic flow information from at least 500 meters upstream of the highway reconstruction and expansion construction site and wirelessly transmits it to ground station 2 in real time. On-site early warning vehicle 4 patrols the roadside from at least 300 meters upstream of the highway reconstruction and expansion construction site, and is equipped with a 5G wireless communication module to send traffic flow information to ground station 2.
[0028] Ground station 2 is an industrial computer connected to a 5G wireless communication module and a LoRa wireless communication module. The 5G wireless communication module is used to receive traffic flow warning information wirelessly transmitted from the on-site warning vehicle 4 and the on-site drone 6, and to send warning execution control signals to the warning device 1 through the LoRa wireless communication module.
[0029] The field controller 11 is a microcontroller-based control board used to receive vehicle position sensing signals monitored by the high-definition camera 12, radar sensor 13, and infrared sensor 14. Simultaneously, it receives traffic flow warning information wirelessly transmitted from the field warning vehicle 4 and the field drone 6 via the wireless communication module 16 (LORA wireless communication module) sent from the ground station 2. Based on different situations, it controls the voice alarm 17, display screen 18, and flashing lights 19 to achieve corresponding warning functions. For example, when a vehicle is approaching the leading warning device, the voice alarm 17 announces "Construction ahead, speed limit 80," while the display screen shows "Construction ahead, caution required." When a vehicle is approaching the middle warning device, the voice alarm 17 announces "You are approaching a highway construction site, speed limit 60," while the display screen shows "Construction ahead, caution required." When a vehicle is approaching the rearmost warning device (approximately 100 meters from the construction site), the voice alarm 17 announces "You are approaching a highway construction site, speed limit 40," while the display screen shows "Construction ahead, caution required." If the warning vehicle 4 and the on-site drone 6 detect a large volume of traffic ahead, they will activate the flashing lights 19 to issue a warning.
[0030] like Figure 4The diagram shows the structure of the early warning device 1. A roller 113 is installed at the bottom of the device to facilitate its movement to different positions on the highway. The roller 113 is mounted on a base 112, on which the main body 111 is mounted. The main body 111 is equipped with a radar sensor 13, an infrared sensor 14, and a voice alarm 17. High-definition cameras 12 and strobe lights 19 are mounted on both sides of the main body 111. A display screen 18 is mounted on the main body 111, and a solar power module 15 is mounted on the display screen 18.
[0031] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.
Claims
1. A traffic safety monitoring system for highway reconstruction and expansion projects, characterized in that, It includes at least three early warning devices installed upstream of the highway reconstruction and expansion construction site and a ground station installed within the highway reconstruction and expansion construction site. The early warning devices are wirelessly connected to the ground station, and the ground station is wirelessly connected to the on-site early warning vehicle, remote server, and on-site drone via a 5G network. The early warning devices include a field controller and a high-definition camera, radar sensor, infrared sensor, solar power module, wireless communication module, voice alarm, display screen, and strobe light electrically connected to the field controller.
2. The on-site traffic safety monitoring system for highway reconstruction and expansion projects according to claim 1, characterized in that, The on-site drone is equipped with a 5G wireless communication module to monitor traffic flow information from the highway reconstruction and expansion construction site to an altitude of at least 500 meters upstream and transmit it wirelessly to the ground station in real time.
3. The on-site traffic safety monitoring system for highway reconstruction and expansion projects according to claim 1, characterized in that, The on-site early warning vehicle patrols the roadside at least 300 meters upstream from the highway reconstruction and expansion construction site. The on-site early warning vehicle is equipped with a 5G wireless communication module to send traffic flow information to the ground station.
4. The on-site traffic safety monitoring system for highway reconstruction and expansion projects according to claim 1, characterized in that, The ground station is an industrial computer and is connected to a 5G wireless communication module and a LoRa wireless communication module.
5. The on-site traffic safety monitoring system for highway reconstruction and expansion projects according to claim 1, characterized in that, The warning devices are spaced at least 100 meters apart, and the warning device closest to the renovation and expansion construction site is at least 100 meters away from the renovation and expansion construction site.
6. The on-site traffic safety monitoring system for highway reconstruction and expansion projects according to claim 1, characterized in that, The field controller is a microcontroller-based control board.
7. The on-site traffic safety monitoring system for highway reconstruction and expansion projects according to claim 1, characterized in that, The wireless communication module is a LORA wireless communication module.
8. The on-site traffic safety monitoring system for highway reconstruction and expansion projects according to claim 1, characterized in that, The warning device is equipped with rollers at its bottom.