CN-119339506-B - Intelligent primary-secondary early warning system and early warning method for safety of expressway constructors

CN119339506BCN 119339506 BCN119339506 BCN 119339506BCN-119339506-B

Abstract

The invention belongs to the technical field of traffic accident prevention in expressway construction areas, and particularly relates to an intelligent primary and secondary early warning system and an intelligent primary and secondary early warning method aiming at the safety of expressway construction personnel. The intelligent primary-secondary early warning system can early warn the upstream vehicle driver in the construction area, meanwhile, an automatic intelligent monitoring early warning mobile robot is additionally arranged in the sub-module to early warn constructors in real time, the optimal early warning effect is ensured to be achieved according to the distribution condition of the constructors, the defect that the early warning system cannot function due to negligence of the driver early warning information is overcome, the effectiveness of the early warning system is improved, and accordingly the life safety of the constructors is guaranteed.

Inventors

WANG CHANG
ZHOU YAN
WU FUWEI
XIN QI

Assignees

长安大学

Dates

Publication Date: 20260512
Application Date: 20240926

Claims (8)

1. The early warning method of the intelligent primary and secondary early warning system for the safety of the expressway constructors is characterized by comprising a primary module for detecting the motion state of a target vehicle and sending corresponding early warning information to a target vehicle driver according to the motion state of the target vehicle, and a secondary module for adjusting the position of the constructors from the constructors according to the position of the constructors monitored in real time and sending the corresponding early warning information to the constructors according to the detection result of the primary module, wherein the early warning method comprises the following specific steps: Step 1, placing a master module at the starting point of a construction area; step 2, installing the intelligent monitoring and early warning mobile robot in the sub-module on the expressway guardrail, and providing each constructor with a locator; step 3, when the intelligent primary and secondary early warning system starts to work, as constructors are active, the localizer sends real-time distance position information of the constructors to the intelligent monitoring early warning mobile robot, and a data processing center of the intelligent monitoring early warning mobile robot analyzes the distribution situation of the constructors by utilizing an algorithm and moves to an optimal position on the guardrail in real time; step 4, the master module collects movement state information of the target vehicle within a certain distance of the upstream of the occupied lane of the construction area, analyzes the speed, the distance and the lane information of the target vehicle, and judges whether the vehicle has an intrusion risk or not; Step 5, when the fact that the target vehicle is at the break-in risk is recognized, the master module sends early warning information to a driver of the target vehicle; Step 6, after the master module sends early warning information to the target vehicle driver, if the target vehicle driver immediately leaves the construction lane, the master module stops early warning; and 7, if the target vehicle still runs on the construction lane after the primary module performs early warning, the primary module continuously performs early warning, meanwhile, the primary module sends an early warning instruction to the secondary module, and the secondary module starts to send an early warning signal to constructors to prompt the constructors to evacuate the construction area in time.
2. The early warning method of the intelligent primary-secondary early warning system for the safety of expressway constructors according to claim 1, wherein the primary module comprises an embedded industrial personal computer, and the embedded industrial personal computer is connected with a millimeter wave radar for detecting the motion state of a target vehicle, a first high-pitch directional horn for prompting a driver of the target vehicle, a first flashing warning lamp, a first power supply for supplying power to the primary module and a first wireless module for communicating with the secondary module through a CAN bus server.
3. The early warning method of the intelligent primary-secondary early warning system for the safety of expressway constructors according to claim 1, wherein the secondary module comprises a second power supply for supplying power and a positioner for providing constructor position information in real time, and the second power supply is connected with an intelligent monitoring early warning mobile robot which freely moves on an expressway guardrail and adjusts the position of the intelligent monitoring early warning mobile robot according to the information of the received positioner, a second wireless module for communicating with a master module, a second high-pitch directional horn for prompting constructors to evacuate and a second explosion flash warning lamp.
4. The early warning method of the intelligent primary-secondary early warning system for the safety of expressway constructors according to claim 3, wherein the intelligent monitoring and early warning mobile robot comprises a connecting device taking expressway guardrails as guide rails and a control module for adjusting the positions of the intelligent monitoring and early warning mobile robot according to the information of the received positioners to realize automatic forward movement, backward movement and stop movement.
5. The early warning method of the intelligent primary-secondary early warning system for the safety of expressway constructors according to claim 1, wherein in step 3, the algorithm steps of the intelligent monitoring early warning mobile robot data processing center are as follows: step 3.1, collecting n distance data from a constructor positioner by the intelligent monitoring and early warning mobile robot; step 3.2, calculating an average value d and a standard deviation sigma of the n distance data to obtain the integral characteristics of the distance data; Step 3.3, determining an overall range including all the distance data, and selecting a range [ d-2σ, d+2σ ] of adding and subtracting twice the standard deviation from the average value of the distances; step 3.4, the central position of the distance range [ d-2σ, d+2σ ] is an initial guess of the optimal distance between the intelligent monitoring and early-warning mobile robot and the whole distance data, and then the optimal early-warning position of the intelligent monitoring and early-warning mobile robot is calculated; Step 3.5, the intelligent monitoring and early warning mobile robot moves back and forth on the high-speed guardrail to find the optimal early warning position, the distance between the intelligent monitoring and early warning mobile robot and the whole distance data is recorded, and the position of the intelligent monitoring and early warning mobile robot is dynamically adjusted in real time according to the distance; and 3.6, when the position of the constructor changes, the intelligent monitoring and early warning mobile robot repeats the steps 3.1-3.5, and dynamically adjusts the position in real time, so that the position of the intelligent monitoring and early warning mobile robot on the high-speed guardrail is ensured to generate the optimal early warning effect on the whole constructor.
6. The early warning method of the intelligent primary-secondary early warning system for the safety of expressway constructors according to claim 1, wherein in step 4, the primary module collects target vehicle information in 200m upstream of a lane occupied by a construction area by adopting a millimeter wave radar.
7. The early warning method of the intelligent primary-secondary early warning system for the safety of expressway constructors according to claim 1, wherein in step 5, when the fact that the target vehicle is at an intrusion risk is identified, an embedded industrial personal computer in a primary module sends an instruction to a first high-pitch directional loudspeaker and a first burst warning lamp through a CAN bus server, and the first high-pitch directional loudspeaker and the first burst warning lamp are driven to send early warning information to a driver.
8. The early warning method of the intelligent primary-secondary early warning system for the safety of expressway constructors according to claim 1, wherein in step 7, the embedded industrial personal computer in the primary module sends an early warning instruction to the secondary module intelligent monitoring and early warning mobile robot through the CAN bus server, and the intelligent monitoring and early warning mobile robot drives a second high-pitch directional loudspeaker and a second explosion flash warning lamp which are installed on the intelligent monitoring and early warning mobile robot to send an early warning signal to constructors.

Description

Intelligent primary-secondary early warning system and early warning method for safety of expressway constructors Technical Field The invention belongs to the technical field of traffic accident prevention in expressway construction areas, and particularly relates to an intelligent primary and secondary early warning system and an intelligent primary and secondary early warning method aiming at the safety of expressway construction personnel. Background The expressway can gradually decrease the service performance along with the increase of the service life, and if the expressway is not maintained in time, severe damage can occur, so that traffic accidents are extremely easy to cause. The maintenance of the expressway needs to be performed under the condition of no traffic interruption, but the arrangement of a construction area reduces the number of passable lanes and the width of lanes, so that the driving environment is suddenly changed, and a driver is required to change lanes in advance. When a driver is tired, distracted or influenced by complex environments around a construction area, the perception is reduced, the safety facilities of the construction area cannot be timely perceived and distinguished, corresponding measures are timely taken, the driver can drive vehicles to intrude into the construction area by mistake, collision accidents are caused, and the life safety of construction operators is seriously threatened. In the prior art, a construction area is generally surrounded by a safety facility to form a temporary isolation area, meanwhile, the safety facility such as a construction board, a reflecting cone and the like is used for prompting the passing of vehicles to slow down running through patterns, lights and text information, and attention is paid to lane reduction, and the safety system has the defects of no break-in detection and limited warning effect on the active warning function of constructors, or a construction area passive safety warning system is used for detecting whether the vehicles break into the construction area through a vehicle collision detection device, wireless communication transmits the information to a control device, then the control device controls an information board and a warning device to work, if the vehicle collision detection device is needed, the detection device is required to be manually restored, and has the defects of inconvenience in operation, high cost and safety risk, and further, the safety warning system is used for judging whether the vehicles break into the construction area through detecting whether the vehicles can safely change from the lane of the construction area or not, and has the risk of warning on the driver when the break into the construction area, and has the construction area, and the safety warning system has the defects of long construction range and difficulty in warning the fact that the driver cannot give attention to the warning information on the running the construction area when the construction area is wide. In conclusion, the existing construction area early warning system does not convert dangerous information into alarm information in time from the viewpoint of safety protection of constructors, and transmits the alarm information to constructors, so that the constructors can take precautionary measures in advance, and multiple guarantees are provided for construction safety. In order to solve the problems, the invention provides an intelligent primary-secondary early warning system for a highway construction area, which is characterized in that construction area on-site monitoring early warning equipment is additionally arranged when a driver on the upstream of the road of the construction area is warned, the risk of false intrusion is perceived in advance, the early warning is carried out on constructors, and the operation safety of the constructors is ensured. In view of this, the present invention has been made. Disclosure of Invention The invention aims to overcome the defects of the prior art, and provides an intelligent primary-secondary early warning system and an intelligent primary-secondary early warning method aiming at the safety of expressway constructors. In order to achieve the above purpose, the present invention provides the following technical solutions: On one hand, the invention provides an intelligent primary-secondary early warning system for the safety of expressway constructors, which comprises a primary module for detecting the motion state of a target vehicle and sending corresponding early warning information to a target vehicle driver according to the motion state of the target vehicle, and a secondary module for adjusting the position of the constructors from the constructors according to the position of the constructors monitored in real time and sending corresponding early warning information to the constructors according to the detection result of the primary module. Specifically,