Print Event Distribution Device with Reception Confirmation
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Solution Overview
Problem
Existing event distribution systems, such as those using broadcast or multicast methods, do not confirm whether client devices receive events, leading to potential failures if the client is not running or cannot communicate with the distribution device.
Innovation Solution
A distribution device that includes a registration unit for setting information, an acquisition unit for event information, a determination unit for identifying distribution targets, a distribution unit for sending event information, and a confirmation unit to verify reception by the client device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a distribution device distributes an event to a client device via a broadcast system or a multicast system, then the event can be distributed to multiple client devices simultaneously, but the distribution device cannot confirm whether the client device has received the event
Solution Approach 1:
The patent implements a feedback mechanism where the distribution device sends event information to the client device and receives an acknowledgment in return. The confirmation unit monitors whether the client device has received the event by checking for the absence of error messages. If no error message is received within a predetermined time period, the system concludes that the event was successfully delivered, providing reliable confirmation while maintaining efficient broadcast/multicast distribution.
2Speed
If the distribution device uses broadcast or multicast to distribute events, then the distribution speed is fast, but the client device may fail to receive the event if it is not running or cannot communicate with the distribution device
Solution Approach 1:
The patent employs a preliminary action approach by establishing a communication channel and sending test messages before distributing actual event information. The registration unit pre-registers client devices, and the confirmation unit sends preliminary acknowledgment requests to verify client device availability. This ensures that event distribution only proceeds to active, reachable clients, preventing delivery failures while maintaining fast distribution speed for confirmed clients.
3Reliability
If the distribution device confirms event reception by waiting for acknowledgment from the client device, then the reliability of event delivery is improved, but the communication overhead and time delay increase
Solution Approach 1:
The patent implements periodic action by setting a predetermined time period for waiting for acknowledgment messages. The confirmation unit sends event information at regular intervals and waits for a specific duration before concluding delivery status. This periodic approach balances reliability and time efficiency by not continuously polling for acknowledgment, thus reducing communication overhead while still providing timely delivery confirmation.
Data Source
AI summary
A distribution device receives a registration request of setting information relating to distribution of an event occurring in a print device from a client, registers the setting information, acquires print device information including event information relating to an event occurred in the print device from the print device, determines event information which is a distribution target based on the event information included in the acquired print device information and the registered setting information, distributes the determined event information to the client, and confirms the reception of the event information by the client device to which the event information is to be distributed.