Smart Card Data Transfer for Offline Controller Updates
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Solution Overview
Problem
Existing systems for updating off-line control devices, such as point of sale (POS) devices and security systems, require manual intervention and lack efficient methods for frequent updates, especially in environments without remote network access.
Innovation Solution
A system utilizing a portable programmable medium, like a smart card, that transfers control data and transactional data between primary and secondary control devices, enabling remote updates through a primary reader/writer and secondary reader/writer, allowing for wireless or wired communication and eliminating the need for manual technician intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual updating methods are used for off-line control devices, then device complexity is reduced, but productivity and update frequency are limited
Solution Approach 1:
A portable programmable medium (smart card) serves as an intermediary carrier to transfer control data between the primary control device and secondary off-line control devices. This mediator enables automated updates without requiring direct network connectivity or complex infrastructure at the off-line devices, thus increasing update frequency while maintaining simplicity of individual devices
Solution Approach 2:
The system divides the update function into separate components: a primary control device that manages data, a portable medium that transports data, and secondary devices that receive updates. This segmentation allows the off-line devices to remain simple while enabling frequent centralized updates through the portable medium interface
2Productivity
If remote network access is provided for all control devices, then update efficiency is improved, but device complexity and infrastructure requirements increase
Solution Approach 1:
The system provides different communication capabilities to different devices based on their needs: primary control devices have full network connectivity for remote updates, while secondary off-line devices use simple portable medium interfaces. This localized approach optimizes update efficiency for devices that need it while keeping infrastructure requirements minimal for devices in remote locations
3Loss of time
If manual technician intervention is used for updates, then device complexity is minimized, but loss of time and operational efficiency decrease
Solution Approach 1:
The system enables self-service updating where secondary control devices automatically receive and apply control data updates from the portable medium without requiring technician intervention. The devices autonomously read the updated data and implement changes, dramatically reducing update time while maintaining ease of operation through simple card insertion
Data Source
AI summary
A system for updating a control device includes a user's portable programmable media having a data storage device, and a primary controlling device including a computer having a data storage device for storing data. A primary reader/writer communicates with the primary controlling device, and the primary reader/writer transfers control data and transactional data from the primary data storage device to the user's portable programmable media. A secondary controlling device includes a secondary computer and a secondary data storage device for storing data. A secondary reader/writer communicates with the secondary controlling device and reads the control and transactional data included in the user's portable programmable media, transferring the data to the secondary controlling device for authenticating, completing a transaction, and storing at least part of the data in the secondary data storage device.