Multi-emergency vehicle signal priority control device at single-point signalized crossing

A signal control and emergency vehicle technology, which is applied in the direction of controlling traffic signals, traffic control systems, road vehicle traffic control systems, etc., can solve problems such as signal priority control system confusion, and achieve the effect of improving emergency rescue capabilities and reducing disaster losses

Inactive Publication Date: 2010-12-01
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a multi-emergency vehicle signal priority control device at a single-point signal control intersection to solve the existing signal priority control system when emergency vehicles from different entrance directions need to pass through the intersection within the same period of time going to mess with the problem

Method used

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  • Multi-emergency vehicle signal priority control device at single-point signalized crossing
  • Multi-emergency vehicle signal priority control device at single-point signalized crossing
  • Multi-emergency vehicle signal priority control device at single-point signalized crossing

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specific Embodiment approach 1

[0011] Specific implementation mode one : combine below figure 1 with figure 2 This embodiment will be specifically described. This embodiment includes a plurality of phase intelligent agents 1, a plurality of groups of signal lamps 3 and a plurality of vehicle detectors 4; each group of signal lamps 3 is arranged at the intersection of a traffic flow passage, to indicate the left, forward or waiting of the traffic flow, Each phase agent 1 corresponds to a group of signal lamps 3 to control the phase sequence and duration of the alternate transformation of each signal lamp in a group of signal lamps; The vehicle detects the emergency priority signal and transmits the detected information to the phase agent 1 of the corresponding traffic channel to complete the positioning of the traffic channel where the emergency vehicle is located;

[0012] Phase agent 1: While controlling a group of signal lights, it receives the detection results of vehicle detector 4, judges the prio...

specific Embodiment approach 2

[0015] Specific implementation mode two : The difference between this embodiment and Embodiment 1 is:

[0016] The vehicle detector 4 also detects the traffic flow of each traffic entry channel at the traffic signal control intersection.

[0017] With this setting, while considering the priority of passage of emergency vehicles, the traffic flow status of each entrance direction and the current signal timing scheme are also considered, and the optimization adjustment of the system is made to ensure that emergency vehicles pass through the signal crossing quickly and safely. mouth, and can reduce the impact of emergency vehicles on other social vehicles.

[0018] The working process of this embodiment is composed of two parts, the first part is the signal timing process of the phase agent; when there is no emergency priority conflict between the various traffic channels, the first part is completely working. The second part is to manage the phase ordering process of the agen...

specific Embodiment approach 3

[0019] Specific implementation mode three : combine below Figure 2 to Figure 9 This embodiment will be specifically described. The difference between this embodiment and the second embodiment is that the phase agent 1 adopts a fuzzy reasoning method when deciding whether to extend, shorten or terminate its own green light phase output state.

[0020] The fuzzy reasoning process of the phase agent can be described as: the input of the fuzzy reasoning module is the maximum urgency of the red light phase, the conversion degree of the green light phase and the remaining rate of the green light signal time, after fuzzy reasoning is carried out according to the preset fuzzy rules , after defuzzification, a green light phase signal timing is obtained, such as extending the time, shortening the time or keeping the green light time unchanged compared to the previous green light time.

[0021] The process mainly includes the following 4 steps:

[0022] A. Preprocessing of detector ...

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Abstract

The invention discloses a multi-emergency vehicle signal priority control device at a single-point signalized crossing, relates to a single-point traffic signal control device at a crossing for controlling traffic signals and aims to solve the problem that the conventional signal priority control system is in chaos under the condition that emergency vehicles from different entrance directions need to pass through the crossing at the same time interval. The device comprises a plurality of phase intelligent agents, multiple groups of signal lamps and a plurality of vehicle detectors, wherein each phase intelligent agent corresponds to a group of signal lamps to control phase sequence and duration of alternative change of turn-on and turn-off of each signal lamp; each vehicle detector is used for detecting an emergency priority signal and transmitting the signal to the phase intelligent agent of a corresponding traffic flow access road; the device also comprises a management intelligent agent which interacts information with each phase intelligent agent; and when different vehicle detectors simultaneously detect the vehicles with the emergency priority, an optimal phase sequence among the phase intelligent agents is made and the sequence result is transmitted to each phase intelligent agent.

Description

technical field [0001] The invention relates to a single-point traffic signal control device at a traffic intersection. Background technique [0002] After a disaster event occurs, the emergency management department needs to respond to the event in the shortest possible time, rescue the wounded, and evacuate the masses to minimize casualties and property losses; for areas where major disasters occur, food and medicine should be provided in time , tents and other material rescue, in order to reduce casualties caused by lack of materials after the disaster. Therefore, ensuring that emergency vehicles arrive at the scene of the incident in a safe and fast manner is a problem that emergency departments in various countries attach great importance to. Unfortunately, traffic problems in reality make it difficult for emergency vehicles to reach the incident scene quickly and safely, especially when passing through intersections, the delay and danger of emergency vehicles are even...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/07G08G1/08G08G1/087
Inventor 安实崔建勋李俐莹
Owner HARBIN INST OF TECH
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