Sensor system, storage device including a sensor system and method for calibrating same
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Solution Overview
Problem
Current sensor arrangements for storage devices, particularly cooling devices in the medical field, require time-consuming and costly calibration processes, necessitating on-site maintenance and removal of temperature-sensitive goods to avoid damage, especially when multiple sensors are involved.
Innovation Solution
A sensor arrangement with detachable plug connections allows for separate calibration of sensors and the measuring unit, enabling replacement with factory-calibrated sensors and facilitating remote calibration through USB and Ethernet connections, reducing maintenance time and complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the entire sensor arrangement is calibrated on-site using comparative measurement, then measurement accuracy is ensured, but the calibration process becomes time-consuming and requires removal of temperature-sensitive goods
Solution Approach 1:
The sensor arrangement is segmented into separate functional modules: sensors, cable connections, measuring unit, and detection/communication unit. Each module can be independently calibrated or replaced, allowing the measuring unit and detection unit to be calibrated separately at the manufacturer's facility while only the sensors need on-site replacement, significantly reducing calibration time and complexity
Solution Approach 2:
The measuring unit and detection/communication unit are pre-calibrated at the manufacturer's facility before delivery to the user. This preliminary calibration eliminates the need for time-consuming on-site calibration of these components, requiring only simple sensor replacement during maintenance while ensuring measurement accuracy is maintained
2Reliability
If all sensors are replaced with factory-calibrated sensors, then measurement reliability is improved, but the cost and complexity of calibration increases
Solution Approach 1:
The system separates sensors from the measuring and detection units, allowing sensors to be replaced independently. This segmentation enables users to replace only faulty sensors with pre-calibrated units without needing to recalibrate the entire system, maintaining reliability while reducing complexity
Solution Approach 2:
The measuring unit is designed with universal compatibility to work with multiple sensor types and configurations. The detachable plug connections and standardized interfaces allow the same measuring unit to accommodate different sensor arrangements, reducing the need for multiple specialized calibration systems
3Measurement precision
If multiple sensors are calibrated simultaneously on-site, then complete sensor arrangement accuracy is achieved, but the maintenance complexity and time required increases significantly
Solution Approach 1:
Each sensor is designed as an independent, self-contained unit with detachable plug connections. This allows individual sensors to be quickly replaced without affecting other sensors or requiring systematic recalibration, maintaining measurement precision across multiple sensors while greatly simplifying the operation
Solution Approach 2:
The system enables users to perform their own sensor replacement and basic calibration without requiring specialized calibration equipment or expert intervention. The pre-calibrated sensors and simple plug-and-play connections allow end-users to maintain their own sensor arrangements, improving ease of operation
Data Source
Figure 1~3
Figure 4
Figure 5a~5b
AI summary
The arrangement has a sensor (10) i.e. temperature sensor, connected with a measuring unit (20) i.e. temperature measuring unit, via a cable connection (40). The measuring unit is connected with a detection and communication unit (30) via another cable connection (50). The former connection is separated into two cable sections. One of the sections is connected with the other section by a detachable plug connection (60) i.e. low impedance plug. The plug connection includes male and female plugs associated to the sections. A calibrating plug is detachably connected with the female plug. Independent claims are also included for the following: (1) a storage device comprising a heat insulated housing (2) a method for calibrating and adjusting a sensor arrangement.