OBJECT DETECTION SYSTEM AND OBJECT DETECTION METHOD

To provide an object detection system and an object detection method which are improved in detection accuracy.SOLUTION: An object detection system for detecting a magnetic field generated by a metallic object includes: a plurality of magnetic sensors provided so as to correspond to an arrangement area of an object; and a management server for receiving outside magnetic field strength measured by each magnetic sensor using magnetic field detection elements in three xyz directions, from each of the magnetic sensors. The management server temporarily determines presence/absence of an object for each arrangement area, on the basis of the received measurement data. The management server determines whether an arrangement area exists for which it has been temporarily determined that at least two continuous objects are present. The management server re-determines presence/absence of the objects by reducing weighting of the magnetic field strength in the xy directions, for at least one arrangement area among the arrangement areas in which at least two continuous objects have been temporarily determined to be present.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、ｘｙ方向の磁界強度の重み付けを小さくすることにより、物体の有無を再判定する。【選択図】図５