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Traffic flow detection method and system

A traffic flow and detection method technology, applied in traffic flow detection and other directions, can solve the problems of low reliability, low degree of generalization, high cost, etc., and achieve the effect of high degree of versatility and convenient data interaction

Active Publication Date: 2020-12-25
南京宽塔信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is to provide a traffic flow detection method and system

Method used

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  • Traffic flow detection method and system
  • Traffic flow detection method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039]This embodiment provides a traffic flow detection method, such asfigure 1 As shown, including the following steps:

[0040]Step 101: Establish an RSSI database, the RSSI database including a number of preset RSSI value groups and the number of vehicles corresponding to the preset RSSI value groups, and each of the preset RSSI value groups includes a first preset RSSI value.

[0041]Step 102: The Bluetooth receiving device receives the Bluetooth transmission signal sent by the first Bluetooth transmission device within a preset time, and obtains multiple first actual RSSIs of the Bluetooth transmission signal transmitted by each of the Bluetooth transmission devices within the preset time value.

[0042]Step 103: The Bluetooth receiving device is configured to retrieve the RSSI database according to a plurality of the first actual RSSI values, and match the first actual RSSI value through the first preset RSSI value in the preset RSSI value group If the matching is successful, the numbe...

Embodiment 2

[0048]The traffic flow detection method of this embodiment is further improved on the basis of implementation 1. The improvements are as follows:figure 2 As shown, including the following steps:

[0049]Step 201: Establish an RSSI database. Each preset RSSI value group includes three preset RSSI values, which are respectively a first preset RSSI value, a second preset RSSI value, and a third preset RSSI value.

[0050]Step 202: The Bluetooth receiving device receives Bluetooth transmission signals sent by three Bluetooth transmitting devices within a preset time. The three Bluetooth transmitting devices include a first Bluetooth transmitting device, a second Bluetooth transmitting device, and a third Bluetooth transmitting device. Device, the multiple actual RSSI values ​​include multiple first actual RSSI values, multiple second actual RSSI values, and multiple third actual RSSI values, and the multiple first actual RSSI values ​​are in the Bluetooth receiving device A plurality of actua...

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Abstract

The invention discloses a traffic flow detection method and a system thereof. The traffic flow detection method comprises the following steps that an RSSI database is established, the RSSI database includes several preset RSSI value groups and a vehicle quantity corresponding to the preset RSSI value groups, and the preset RSSI value groups include several preset RSSI values; a bluetooth receivingapparatus receives bluetooth emission signals sent by several bluetooth emitters in a preset time and acquires a plurality of actual RSSI values of the bluetooth emission signals; and the bluetooth receiving apparatus is used for matching the actual RSSI values through the preset RSSI values in the preset RSSI value groups, if matching is performed successfully, the vehicle quantity correspondingto the preset RSSI value group where the preset RSSI values are located is acquired from the RSSI database, and summation is performed on the acquired vehicle quantities after the matching is performed successfully and a vehicle flowrate of unit time is calculated. Under the condition that detection precision is guaranteed, cost is greatly reduced and implementation is convenient.

Description

Technical field[0001]The invention relates to a traffic flow detection method and systemBackground technique[0002]With the accelerating process of urbanization in our country, the improvement of the transportation system has become the core issue of current social development. How to alleviate the increasingly serious traffic problems through the construction of intelligent transportation systems has become a research focus in the field of transportation. The traffic flow detection system is the basic part of intelligent transportation, and it plays an important role in the construction of urban roads, national highways, tunnels and bridges, and traffic management.[0003]In recent years, a variety of traffic detection technologies represented by air duct detection technology, magnetic induction detection technology, wave frequency detection technology and video detection technology have been gradually developed. Traffic flow detection is mainly to detect vehicles on the road through ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01
Inventor 邓红峰陈建生
Owner 南京宽塔信息技术有限公司