Tablet Packaging Cartridge Identification via Dual Communication Paths
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Solution Overview
Problem
Existing tablet automatic packaging machines cannot accurately identify and locate cartridges with identical information, leading to medication errors and difficulty in confirming the positions of cartridges and tablets, as they only transmit information from the tablet cassette memory without providing cartridge information to the server.
Innovation Solution
The machine includes cartridges with an inner memory for cartridge information, dual data transmitting/receiving units (RS232 to RS485 converters) for separate command paths, and a control unit to transmit cartridge information to an external device, allowing for the identification and location confirmation of cartridges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If only tablet cassette information is transmitted to the server, then the system maintains simplicity in data transmission, but the server cannot accurately identify and locate cartridges with identical information
Solution Approach 1:
The data transmission system is segmented into two separate paths: one for preparation commands and another for cassette position information. This segmentation allows the server to receive and process cartridge location data independently, enabling accurate identification without overwhelming the system with unified complex data streams.
Solution Approach 2:
The cartridge controller acts as an intermediary that collects cartridge information from the cassette memory and transmits it to the server through a dedicated communication path. This intermediary role enables the server to receive structured, location-specific data without requiring direct complex interactions between all system components.
2Adaptability or versatility
If a single data path is used for all commands, then the system structure remains simple, but the server cannot selectively process preparation commands and position-related commands
Solution Approach 1:
The data transmission path is divided into two distinct channels: one dedicated to preparation commands and another for cassette position information. This segmentation enables the server to selectively process different types of commands through appropriate paths, enhancing versatility while maintaining manageable system complexity.
Solution Approach 2:
The dual-path communication system provides universal functionality by handling multiple types of commands (preparation and position-related) through specialized paths. Each path is optimized for its specific command type, allowing the system to adapt to different operational requirements without requiring a completely different communication structure.
3Loss of information
If cartridge information is not stored in the cartridge, then the system maintains simplicity, but the server cannot confirm locations of cartridges and tablets
Solution Approach 1:
Cartridge information is pre-stored in the cartridge's internal memory before the dispensing operation begins. This preliminary storage of location and identification data ensures that the server can immediately access and confirm cartridge locations without requiring real-time queries or complex tracking mechanisms during operation.
Solution Approach 2:
The cartridge system provides self-service by autonomously storing and managing its own identification and location information in internal memory. This self-contained information storage capability eliminates the need for external tracking systems or complex server-side location verification processes.
4Reliability
If identical cassette information is stored in multiple cassettes, then the system maintains flexibility in cassette usage, but medication errors occur because the server cannot select a specific cassette
Solution Approach 1:
The identification system is segmented to include both cassette-level information and cartridge-level location information. This segmentation allows the server to uniquely identify a specific cassette by combining the cassette identity with its cartridge location, even when multiple cassettes contain identical medication information.
Solution Approach 2:
The cartridge controller serves as an intermediary that links the cassette to its specific location. When the server needs to select a specific cassette, it communicates through the cartridge controller, which provides both the cassette identification and its location context, enabling precise selection and preventing medication errors.
Data Source
AI summary
Tablet automatic packaging machine and method for automatically recognizing cassettes of the cartridges of the tablet automatic packaging machine are disclosed. The tablet automatic packing machine includes a plurality of cartridges arranged in multiple layers. Each cartridge is coupled to a tablet cassette having a cassette memory in which tablet information or cassette information is recorded. Also, the cartridge comprises an inner memory to store cartridge information, a first data transmitting/receiving unit to transmit and receive commands related to preparation therefrom/thereto, a second data transmitting/receiving unit to transmit and receive commands related to cassette positions, and a control unit to control transmission from the cartridge information read from the inner memory to an external device based on reception of the commands related to cassette positions.