Projector Startup Authorization via Centralized Management Server
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Solution Overview
Problem
Existing management systems for projectors lack the capability for a management server to determine the propriety of a projector's start, as they rely solely on the projector's determination, which is insufficient when the management server needs to make this decision.
Innovation Solution
A management server that manages projector start propriety by associating device identification information with start propriety information, and communicates this information to the projector upon request, allowing the projector to execute or suspend start processing based on the server's determination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the projector side determines propriety of start, then the control process is simple, but the management server cannot centrally control projector activation
Solution Approach 1:
The patent introduces a management server as an intermediary between the projector and the user/payment system. The management server receives payment information, determines start propriety, and communicates this determination to the projector. This mediator enables centralized control while maintaining a relatively simple projector design that only needs to query the management server rather than implementing complex payment verification itself.
2Adaptability or versatility
If the management server determines start propriety, then centralized control is achieved, but the projector cannot autonomously decide startup
Solution Approach 1:
The system implements a feedback mechanism where the projector autonomously initiates a query about its start propriety, the management server processes this query by checking payment information, and returns the determination result to the projector. This feedback loop enables the management server to maintain centralized control while the projector retains autonomy to request startup permission and act on the received decision.
3Reliability
If the projector transmits identification information to the management server, then the projector can verify its status, but additional communication steps are required
Solution Approach 1:
The management server performs preliminary actions by maintaining up-to-date payment information and start propriety determinations in its database before the projector needs to query. When the projector transmits its identification information, the management server can immediately retrieve and return the pre-computed start propriety determination without needing to perform additional verification calculations at that moment, thus reducing communication time.
Data Source
AI summary
A management server includes a management unit configured to manage, for each of one or more projectors, first management information for associating device identification information for identifying the projector and start propriety information indicating propriety of a start of the projector, an acquisition unit configured to acquire, from a first projector, a first inquiry request including the device identification information for identifying the first projector, the first inquiry request inquiring propriety of a start of the first projector, an extraction unit configured to extract, referring to the first management information, start propriety information corresponding to the device identification information included in the first inquiry request, and an output unit configured to output the start propriety information indicating the propriety of the start of the first projector extracted by the extraction unit.