Capacitive Sensor System for Cargo Bed Tampering Detection
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Solution Overview
Problem
Conventional capacitive proximity sensor systems for vehicles do not provide features to detect unauthorized access within cargo beds or individual cargo bins, nor do they offer access control or sensing capabilities for cargo bed cap manipulation.
Innovation Solution
A capacitive proximity sensor system is integrated into the cargo bed of vehicles, featuring sensors on the cargo bed walls and cap, which detect position changes, unauthorized access, and provide a control system for access management, allowing users to authorize individuals and group bins for access control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional capacitive proximity sensor systems are used for vehicles, then basic object detection is provided, but unauthorized access detection within cargo beds and access control capabilities are not provided
Solution Approach 1:
The cargo bed is divided into multiple monitored zones using an array of capacitive sensors positioned at different locations. Each sensor monitors a specific zone, allowing the system to detect unauthorized access to particular areas while maintaining overall cargo security. This segmentation enables targeted monitoring without requiring a single complex sensor system.
Solution Approach 2:
The capacitive sensor system performs multiple functions: detecting unauthorized access to the cargo bed, monitoring individual cargo bins, detecting cargo movement, and providing access control. By making the sensor system multi-functional, the patent improves cargo security comprehensively without adding separate dedicated systems for each function, thus managing complexity efficiently.
2Adaptability or versatility
If individual capacitive sensors are added to detect cargo bin access, then access control capability is improved, but device complexity increases
Solution Approach 1:
The cargo bed is divided into multiple monitored zones using an array of capacitive sensors positioned at different locations. Each sensor monitors a specific zone, allowing the system to detect unauthorized access to particular areas while maintaining overall cargo security. This segmentation enables targeted monitoring without requiring a single complex sensor system.
Solution Approach 2:
The system allows dynamic configuration of sensor groups and access control settings through a user interface. Users can selectively enable or disable specific sensors, configure which sensors belong to which cargo bins, and manage access permissions dynamically. This flexibility enables the system to adapt to different security requirements without permanent complex wiring or fixed configurations.
3Measurement precision
If capacitive sensors are integrated into cargo bed walls and cap, then detection precision for cargo manipulation is improved, but manufacturing complexity increases
Solution Approach 1:
The cargo bed is divided into multiple monitored zones using an array of capacitive sensors positioned at different locations. Each sensor monitors a specific zone, allowing the system to detect unauthorized access to particular areas while maintaining overall cargo security. This segmentation enables targeted monitoring without requiring a single complex sensor system.
Solution Approach 2:
The system uses multiple inexpensive capacitive sensors rather than a single complex expensive sensor. These simple capacitive sensors can be easily manufactured and integrated into the cargo bed structure. If a sensor fails or needs repositioning, it can be replaced without affecting the entire system, reducing manufacturing and maintenance complexity.
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 system effectively detects potential theft, provides actionable information on cargo loss, and offers access control to mitigate unauthorized access and loss of valuable items from the cargo bed.
Implementation Method 1
obtain from a capacitive sensor disposed between a cargo bed wall and a cargo bed cap, a first value and a second value associated with a capacitive field
Data Source
AI summary
The disclosure is directed to a vehicle cargo bed capacitive sensor system configured to determine when a cargo bed cap installed on the cargo bed (e.g., the bed of a pickup truck) changes position or is being manipulated in some way. The system may include one or more capacitive sensors disposed on one or more cargo bed walls, between the cargo cap and the cargo bed. The system detects when the cargo bed cap is removed, and detects when particular cargo bed doors are opened using the sensors. The system may also provide a control system that allows users to authorize individuals to access particular areas, group individual bins together for access control, and can provide information when the system detects unauthorized access.