a detection system

Abstract

The invention discloses a detection system for detecting the existence of a moving object and the direction of the moving object passing through a doorway. The system consists of magnets placed in doorways, a communication device (usually a smartphone) and a server. Magnets are positioned in the doorway and are designed to create a magnetic field across the doorway. When an object carrying a smartphone passes through a doorway, the magnetometer in the smartphone senses the perturbation caused by the magnetic field and generates a signal corresponding to the induced perturbation, which is processed by the smartphone's processor to detect the presence of the object and the direction of the object through the doorway. The data generated by the processor and the unique identification associated with the smartphone are sent to a remote server.

Description

technical field [0001] The invention relates to the detection of the entry and exit of objects within a venue. [0002] definition [0003] The word "subject" as used in the context of the present invention refers to persons and / or objects, including but not limited to carts, vehicles and the like. [0004] The term "doorway" as used in the context of the present invention means, but is not limited to, a gate, entrance, exit, doorway, archway or the like, which may be used to provide access to a place. [0005] The term "magnetometer" as used in the context of the present invention refers to an instrument used to measure parameters including, but not limited to, the strength, flux and direction of a magnetic field. [0006] These definitions are in addition to other expressions in the art. Background technique [0007] The entry and exit of objects within a venue is usually detected and recorded by means of a smart card based system, where an object punches / swipes a card ...

AI Technical Summary

Problems solved by technology

[0009] However, the system using WiFi technology has a disadvantage. In order to save power, the mobile phone users of the cellular system may turn off the WiFi of the mobile phone and forget to turn on the WiFi later.

As a result, the user's entry and exit will not be detected

Also, the inevitable need for active WiFi links at every doorway requires large and power-dense information systems, thereby increasing the overall cost of using these systems

[0010] Systems using RF / GPS technology, in addition to the disadvantages of requiring large and high energy density information systems, are not yet compliant because these systems work in frequency bands that require licenses

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