SMS Home Appliance Control via Pre-stored Access Codes
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Solution Overview
Problem
Existing home automation systems require time-consuming WAP access and authentication for remote control of appliances, incur data communication fees, and lack immediate status confirmation of controlled appliances, making SMS-based control cumbersome and prone to errors.
Innovation Solution
A method using a mobile terminal and home server that automatically generates and sends SMS messages with access codes and status information, allowing users to control appliances without inputting control codes, with the mobile terminal displaying appliance status through a GUI, enabling easy control and confirmation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If WAP-based control is used to remotely control home appliances, then control functionality is provided, but authentication procedures are time-consuming and incur data communication fees
Solution Approach 1:
The system performs authentication in advance by storing access codes in the mobile terminal during initial setup. This preliminary authentication eliminates the need for time-consuming authentication procedures during each subsequent control operation, allowing users to simply send SMS messages without repeated login steps.
Solution Approach 2:
The invention extracts the authentication function from the WAP-based control flow and implements it separately through SMS with pre-stored access codes. This separates the authentication step from the control operation, allowing control to be performed quickly via SMS without repeating the full WAP authentication sequence.
2Loss of time
If SMS-based control is used to avoid WAP authentication, then authentication time is reduced, but users must directly input control codes which is cumbersome and error-prone
Solution Approach 1:
The mobile terminal serves as an intermediary that automatically generates properly formatted control SMS messages. Instead of requiring users to manually input control codes, the system's control code generation unit automatically creates the correct control message format based on user selection, eliminating input errors while maintaining SMS-based quick control.
Solution Approach 2:
The system provides self-service by automatically generating control codes and formatting SMS messages without user intervention. The control code generation unit handles the complex code formation process automatically, allowing users to simply select the desired control action without dealing with technical code input requirements.
3Productivity
If users directly input control codes via SMS, then control is achieved, but users cannot immediately confirm whether the appliance status changed
Solution Approach 1:
The system implements feedback by automatically receiving status information from the home server via SMS and displaying it on the mobile terminal. After a user sends a control command, the system receives the appliance's status response and presents it to the user, providing immediate confirmation of whether the control was successful and what the current state is.
4Adaptability or versatility
If WAP server is used to store control menu, then control functionality is provided, but implementation is limited to large housing complexes
Solution Approach 1:
The invention extracts the control menu storage function from the WAP server and implements it locally in the mobile terminal's memory. This eliminates the requirement for a centralized WAP server infrastructure, allowing the system to be deployed in individual homes or small communities without needing large housing complex infrastructure.
Solution Approach 2:
The control menu is copied from the server to the mobile terminal's local memory. This local copy allows the terminal to operate independently without continuous server connection, reducing system complexity and enabling deployment in locations without WAP server infrastructure while maintaining full control functionality.
Data Source
AI summary
Disclosed are a system and method for controlling home appliances using a short message service. When receiving a short message including an access code from a mobile terminal, the home server checks the status of the connected home appliances and sends a short message including control codes corresponding to the status of the home appliances to the mobile terminal. The mobile terminal checks the control codes to confirm the status of the home appliances, and displays corresponding images. When the user requests to control the status of a specific home appliance, the mobile terminal automatically generates a corresponding short message and sends the short message to the home server. The home server checks the message, controls the corresponding home appliance, and then sends a short message including current status information of the controlled home appliance to the mobile terminal.