SIM Embedded Control Logic for M2M Device Management
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Solution Overview
Problem
Existing Machine-to-Machine (M2M) systems require external processors to interpret AT commands for controlling devices, leading to increased system cost, size, and power consumption, as well as manufacturer-specific limitations and the need for custom logic design.
Innovation Solution
A subscriber identification module (SIM) with embedded processing logic that directly controls wireless modems, eliminating the need for external processors and allowing for direct access to control lines, enabling machine control functions without custom design and facilitating software updates through SIM replacements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If external processors are used to interpret AT commands for controlling devices, then device control functionality is achieved, but system cost, size, and power consumption increase
Solution Approach 1:
The patent merges the control logic functionality into the SIM card itself, combining the subscriber identification module with the command interpretation and device control capabilities. This eliminates the need for separate external processors, thereby reducing system complexity, cost, size, and power consumption while maintaining full device control functionality.
Solution Approach 2:
The SIM card is designed to perform multiple functions: traditional subscriber identification, secure data storage, and now also AT command interpretation and device control. This multi-functional approach allows a single component to replace what previously required multiple separate components, reducing overall system complexity.
2Ease of operation
If manufacturer-specific commands are used for controlling devices, then specific device control is achieved, but adaptability to different manufacturers is reduced
Solution Approach 1:
The SIM card is designed with universal compatibility to work with modems from different manufacturers. It implements a standardized interface that can interpret and execute AT commands across various modem types, eliminating the need for manufacturer-specific adaptation while maintaining the ability to control specific devices.
Solution Approach 2:
The SIM card acts as an intermediary between the user and the modem device. It provides a standardized command interface that translates user requests into device-specific commands, allowing the same SIM card to control devices from different manufacturers without requiring manufacturer-specific customization.
3Ease of operation
If custom logic design is required for machine control, then specific control functionality is achieved, but system complexity and manufacturing difficulty increase
Solution Approach 1:
The SIM card provides a pre-programmed, ready-to-use solution for machine control functionality. Instead of requiring custom logic design and programming for each application, users can simply insert a SIM card that already contains the necessary control logic, significantly reducing manufacturing complexity and enabling easy deployment.
Solution Approach 2:
The control logic is pre-programmed into the SIM card during manufacturing. This preliminary action eliminates the need for custom logic design and programming at the deployment stage, reducing system complexity and making the system easier to manufacture and deploy.
Data Source
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AI summary
A system and associated method are provided. The system includes a subscriber identification module (SIM) comprising a memory configured to store one or more executable instructions and a processor configured to execute the one or more executable instructions for controlling a device, a device configured for being controlled by the SIM, and a SIM interface configured to communicate the instructions from the SIM to control the device.