Traffic flow estimation method of public parking lot integrated management system

A comprehensive management and parking lot technology, applied in the field of automation technology and modern control, can solve the problems of parking and waiting for multiple vehicles, reduce parking efficiency, increase parking lot congestion, etc., and achieve the effect of alleviating parking difficulties and efficient utilization.

Active Publication Date: 2021-12-21
HANGZHOU DIANZI UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the complex layout and structure of large public parking lots, drivers cannot grasp the number of vehicles that are about to leave in the parking lot. field congestion

Method used

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  • Traffic flow estimation method of public parking lot integrated management system
  • Traffic flow estimation method of public parking lot integrated management system
  • Traffic flow estimation method of public parking lot integrated management system

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Embodiment Construction

[0090] The present invention will be further described below in conjunction with specific examples, but the present invention is not limited to these specific embodiments. Those skilled in the art will realize that the present invention covers all alternatives, modifications and equivalents as may be included within the scope of the claims.

[0091] Such as figure 2 As shown, this embodiment models a class of comprehensive parking lot management system based on a state-saturated positive switching system, and designs an event-triggered asynchronous filter for estimating the traffic flow of each large public parking lot. The specific steps are as follows:

[0092] Step 1. First, collect data on the traffic flow at the entrance and exit of the parking lot, and use the collected data to establish a state space model of the parking lot integrated management system in the following form:

[0093] x(k+1)=sat(A σ(k) x(k))+B σ(k) ω(k),

[0094] y(k)=C σ(k) x(k)+D σ(k) ω(k),

...

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Abstract

The invention discloses a traffic flow estimation method of a public parking lot integrated management system. The method comprises the following steps: 1 establishing a state space model of a parking lot integrated management system with a saturated state; 2 constructing event triggering conditions of vehicle congestion at the entrance and the exit of the parking lot; and 3 designing an event triggering asynchronous filter of the public parking lot integrated management system. According to the invention, the public parking lot integrated management system is modeled based on a positive switching system with state saturation, and an asynchronous filter is designed based on an event triggering strategy and is used for traffic flow estimation of each large-scale public parking lot. The method can accurately estimate the traffic flow of each parking lot entrance and exit in real time, more conveniently help a parking user to select a vehicle parking place, effectively solve the problem of parking lot entrance and exit congestion caused by parking lot capacity limitation and road traffic conditions, and improve the utilization rate of parking spaces of the parking lot.

Description

technical field [0001] The invention belongs to the field of automation technology and modern control, and in particular relates to an event-triggered filtering method of a positive switching system based on state saturation, which can be applied to a management system of a public parking lot. Background technique [0002] With the rapid growth of population density and the number of private cars in our country, the motorization process of urban road traffic is accelerating, and the accompanying parking problem is becoming more and more serious. Many large public parking lots are short of parking spaces, and there is no effective parking reminder information, lack of guidance and control on parking management methods, parking users face severe road traffic conditions, and it takes a long time to find a parking space in the nearest parking lot. Entrances and exits are often blocked during time periods. The sharing of parking space information between various parking lots in ...

Claims

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Application Information

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IPC IPC(8): G08G1/01G08G1/065G08G1/14H03H17/02
CPCG08G1/0125G08G1/065G08G1/14H03H17/02
Inventor 李临敏张俊锋张石涛孙振洋
Owner HANGZHOU DIANZI UNIV
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