Retractable Post Assembly with Integrated Alarm
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Solution Overview
Problem
Conventional retractable post assemblies used in industries like photography and broadcasting lack an alarm function to alert personnel of sudden events, such as the relative movement or fall of the moveable post, which can lead to accidents or equipment damage.
Innovation Solution
A retractable post assembly with an integrated alarm device, such as a pneumatic sound generator, electrically-controlled buzzer, or electrically-controlled alarm lamp, is designed to sense relative movement between the stationary and moveable posts, triggering an alarm to alert nearby personnel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an alarm device is added to the retractable post assembly, then the safety and notification capability is improved, but the device complexity increases
Solution Approach 1:
The alarm device is integrated into the retractable post assembly by combining it with the existing sensor system. The sensor detects relative movement between the moveable and stationary posts, and this detection function is merged with the alarm notification function, allowing a single integrated system to provide both structural support and safety alerting capabilities.
Solution Approach 2:
The sensor system in the retractable post assembly serves multiple functions: it detects the relative position of the moveable post, monitors for abnormal movements, and triggers the alarm device when thresholds are exceeded. This multi-functionality reduces the need for separate dedicated components and simplifies the overall system architecture.
2Loss of time
If the alarm device is activated to notify personnel of sudden events, then the response time is improved, but the energy consumption increases
Solution Approach 1:
The alarm device operates in a periodic or event-triggered manner rather than continuously. The sensor continuously monitors the relative position of the moveable post, but the alarm is only activated when abnormal movement is detected, thereby maintaining rapid response capability while minimizing energy consumption during normal operation.
Solution Approach 2:
The system uses the existing sensor infrastructure of the retractable post assembly to detect abnormalities and automatically trigger the alarm, eliminating the need for continuous external monitoring or manual inspection. The system serves itself by utilizing its own components for both detection and notification functions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables immediate notification and handling of sudden events, preventing further issues by alerting personnel to adjustments or potential damage, thereby ensuring safer operation.
Implementation Method 1
When the moveable post is making a relative movement with respect to the stationary post, the alarm device senses the movement and raises an alarm accordingly
Data Source
AI summary
A retractable post assembly with alarm function is disclosed. The retractable post assembly includes: a stationary post being a column member; a moveable post being a column member and moveably sleeved with the stationary post; and an alarm device, such as an air whistle, an electrically-controlled buzzer unit, and an electrically-controlled alarm lamp unit, installed in the retractable post assembly at a proper location. When the moveable post is making a relative movement with respect to the stationary post, the alarm device senses the movement and raises an alarm accordingly.