Object detection device

JP2026073735A5Pending Publication Date: 2026-06-03MURATA MFG CO LTD

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
MURATA MFG CO LTD
Filing Date
2024-10-18
Publication Date
2026-06-03

AI Technical Summary

Technical Problem

Existing safety and startup devices for automatic doors, such as those using transmissive non-contact proximity switches, do not consider relocation and ensure consistent performance across different automatic doors.

Method used

A relocatable object detection device with a radar system and reflectors installed between adjacent members, utilizing a first and second housing with radar devices and reflectors at varying heights to detect objects in gaps, and incorporating fixing mechanisms to stabilize the setup.

Benefits of technology

Enables reliable object detection across different installations while reducing power consumption and manufacturing costs, maintaining detection accuracy without recalibration, and expanding the detection range.

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Abstract

To provide a relocatable object detection device that fully utilizes the performance of the radar system. [Solution] The object detection device is a movable object detection device installed to detect an object located in the gap between a first member and a second member that are positioned side by side in a first direction intersecting vertically, and comprises a first housing, a second housing, at least one radar device, and a plurality of reflectors. The first housing is adjacent to the first member, and the second housing is adjacent to the second member. The radar device is provided in the first housing and is configured to transmit radio waves and receive reflected waves of the transmitted radio waves. The plurality of reflectors are provided at different heights in the vertical direction of the second housing and are configured to reflect radio waves emitted from the radar device.
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