Field-Replaceable Service Module With Rigid Couplers For Industrial Vehicle Displays
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Solution Overview
Problem
Industrial vehicle displays face challenges in durability and maintenance, particularly in noisy environments, due to the complexity of existing wireless communication systems and the need for reliable data transmission without losing vehicle-specific data when replacing damaged components.
Innovation Solution
A processing device comprising a main module and a field-replaceable service module with a direct electrical connection via rigid couplers, which includes anti-vibration posts to prevent damage and allows for high-speed data transmission, enabling the service module to be replaced without affecting stored vehicle data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a wireless transceiver system is used for industrial vehicle displays, then workers can be linked to management systems and directed in tasks, but the system becomes complex and vulnerable to vibration damage
Solution Approach 1:
The display system is divided into separate modules: a main module containing the processor and memory, and a service module containing the display and input controls. This segmentation allows the complex wireless communication functionality to be isolated in the main module while the service module remains a simpler, replaceable interface component, reducing overall system complexity and vulnerability.
Solution Approach 2:
The service module (display and input controls) is extracted as a separate field-replaceable unit from the main processing module. This extraction allows the display system to maintain wireless communication capabilities while isolating the vulnerable interface components that are subject to vibration damage, enabling easy replacement without affecting the core processing system.
2Ease of repair
If the service module is made field-replaceable, then maintenance becomes easier, but reliable data transmission during replacement becomes challenging
Solution Approach 1:
A rigid coupler is pre-configured in the main module with electrical contacts positioned to automatically align with corresponding contacts in the service module. This preliminary arrangement ensures that when the service module is attached, electrical connection is established before any data transmission begins, guaranteeing reliable connectivity from the moment of attachment without requiring complex alignment procedures.
Solution Approach 2:
The electrical connection between modules is achieved through a rigid mechanical coupler that provides direct physical contact between electrical contacts, replacing complex cable assemblies or connectors. This mechanical substitution ensures stable, vibration-resistant electrical connection that maintains data transmission reliability during field replacement operations.
3Speed
If rigid couplers are used for electrical connection, then data transmission speed increases, but vibration damage to the couplers becomes a risk
Solution Approach 1:
Vibration dampeners are integrated into the rigid coupler assembly to provide beforehand cushioning against vibration damage. These dampeners are positioned to absorb and dissipate vibrational energy before it can reach and damage the electrical contacts or circuit board traces, allowing the rigid coupler to maintain high-speed data transmission capability while being protected from the harsh industrial environment.
Solution Approach 2:
The coupler assembly utilizes composite construction combining rigid materials for structural integrity and electrical conductivity with vibration-dampening materials. This composite approach allows the coupler to maintain the rigidity needed for high-speed signal transmission while incorporating materials that absorb vibrations, resolving the contradiction between speed and vibration resistance.
4Ease of operation
If the service module includes display and input controls, then user interface functionality is provided, but the module becomes vulnerable to damage in noisy industrial environments
Solution Approach 1:
The user interface is segmented into a service module that can be easily replaced if damaged. By separating the display and input controls from the main processing module, the system maintains full user interface functionality while protecting the critical processing components from damage in harsh industrial environments. The service module becomes a sacrificial component that can be replaced without affecting system reliability.
Solution Approach 2:
The service module is designed as a disposable or easily replaceable component, analogous to short-living objects principle. The display and input controls, being vulnerable to damage from vibration and environmental factors, are made as field-replaceable units that can be quickly swapped out when damaged, maintaining system availability without requiring repair of the main processing module.
Data Source
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AI summary
A processing device for an industrial vehicle includes a field-replaceable user interface. The processing device includes a service module and a main module. The service module, which is field replaceable, includes a display having a touch screen, at least one user input control and a service module circuit board. The main module comprises a main module circuit board. The service module circuit board and the main module circuit board include complementary rigid couplers that connect independently of a cable there between when the service module is mated with the main module.