OBJECT DETECTION SYSTEM AND METHOD FOR DETECTING OBJECT

To provide an object detection system and a method for detecting an object with an increased detection accuracy.SOLUTION: The object detection system for detecting a magnetic field in which a metal object is generated includes: a plurality of magnetic sensors formed for an area where the object is arranged; and a management server for receiving the intensity of an external magnetic field which each magnetic sensor measured by the magnetic field detection elements in three directions of an x-direction, a y-direction, and a z-direction, from each magnetic sensor. The management server provisionally determines the presence or absence of an object in each arrangement area on the basis of the received measurement data. The management server determines whether there are at least two arrangement areas adjacent to each other that have been provisionally determined to include an object. The management server makes a second determination of the presence or absence of an object in at least one of the arrangement areas which have been provisionally determined to include an object, by increasing the weight of the intensity of the magnetic field in the z-direction.SELECTED DRAWING: Figure 5 【課題】本発明は、検出精度を向上させた物体検出システムおよび物体検出方法に関するものである。【解決手段】金属の物体が発生する磁界を検出する物体検出システムは、物体の配置エリアに対応して設けられた複数の磁気センサと、各磁気センサがｘｙｚの３方向の磁界検出素子により測定した外部磁界強度を、各磁気センサから受信する管理サーバと、を備え、管理サーバは、受信した測定データに基づき、配置エリアのそれぞれについて物体の有無を仮判定し、管理サーバは、少なくとも２つ連続して物体ありと仮判定した配置エリアが存在するか否かを判定し、管理サーバは、少なくとも２つ連続して物体ありと仮判定した配置エリアのうち、少なくとも１つの配置エリアについて、ｚ方向の磁界強度の重み付けを大きくすることにより、物体の有無を再判定する。【選択図】図５