Collision detection signal transmission circuit and intelligent mobile device

By integrating a collision detection module, a power switch module, a level management module, and a control module, the design solves the problem of damage caused by direct access of collision signals from self-moving devices to the main control MCU pins. It achieves electrical isolation and standardized level management, improving the system's reliability and the flexibility of its response strategy.

CN224739323UActive Publication Date: 2026-09-11SHENZHEN HANYANG TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202521919436.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-05
Publication Date
2026-09-11
Estimated Expiration
2035-09-05

AI Technical Summary

Technical Problem

The collision detection signal of existing self-moving devices is directly connected to the I/O pin of the main control MCU, which is susceptible to static electricity accumulation or power grid surges under complex operating conditions, which can lead to damage to the main control MCU and insufficient system stability and security.

Method used

An integrated solution is adopted, consisting of a collision detection module, a power switch module, a level management module, and a control module. The power switch module supplies power, the level management module manages the reference level, and the control module monitors the level status, thereby achieving electrical isolation between the collision signal and the main control MCU and standardized level management.

Benefits of technology

This avoids damage to the main control MCU due to high voltage surges and electrostatic interference, improves system reliability and the flexibility of collision event response, and ensures the safety of the main control MCU.

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Abstract

This application discloses a collision detection signal transmission circuit and a smart mobile device, relating to the field of circuit protection technology. The collision detection signal transmission circuit includes: a collision detection module for detecting collision events and generating corresponding level signals upon power-up; a power switch module connected to the collision detection module for supplying power to the collision detection module; a level management module connected to the collision detection module for providing a reference level and changing the reference level upon receiving a level signal; and a control module connected to both the power switch module and the level management module for outputting an enable signal to control the power switch module to supply power to the collision detection module, and also for monitoring the level status of the reference level. This application achieves electrical isolation and standardized level management between the collision signal and the main control MCU, ensuring the safety of the main control MCU (which acts as the control module) and improving the reliability of the system in responding to collision events and the flexibility of the response strategy.
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