Dual-Interface Mobile Data Memory for Explosion-Prone Areas

The data memory device is segmented into two distinct interface units: a first interface unit for standardized interfaces (USB, Ethernet) connecting to data processing equipment, and a second interface unit for proprietary interfaces connecting to devices in explosion-prone areas. This segmentation allows each interface to be optimized independently, with the standardized interface handling complex protocols only when needed for data evaluation, while the intrinsically safe interface maintains simplicity for operational safety.

The data memory device acts as an intermediary between data processing equipment and devices in explosion-prone areas. It receives data via the intrinsically safe proprietary interface, stores it temporarily, and then transfers it to the standardized interface for connection to external equipment. This mediator role eliminates the need for direct complex protocol implementation in the intrinsically safe device, as the data memory handles protocol conversion and data management.

The device is segmented into intrinsically safe components (second interface unit, memory device) and non-intrinsically safe components (first interface unit). The intrinsically safe portion is minimized to only what is necessary for safe operation in explosion-prone areas, while the standardized interface portion can be updated or replaced without affecting certification. This segmentation reduces the scope of certification required while maintaining operational security where needed.

Intrinsically safe design characteristics are applied locally only to the second interface unit and memory device that operate in explosion-prone areas, rather than requiring the entire device including the standardized first interface unit to be intrinsically safe. This localized application of safety requirements reduces overall device complexity and certification burden while maintaining safety where required.

The data memory device provides universal compatibility by incorporating multiple interface units: it can connect to devices in explosion-prone areas via the proprietary second interface unit, and simultaneously or alternatively connect to standard data processing equipment via the first standardized interface unit. This multi-functionality eliminates the need for separate converters, as the data memory itself serves as the conversion point between different interface types.

The data memory device serves as an intermediary that bridges the proprietary interface and standardized interfaces. Data can be exchanged with devices in explosion-prone areas through the simple proprietary interface, then the data memory automatically handles the conversion and transmission through the standardized interface to PCs or other data processing equipment, eliminating the need for external converters.

The data memory device acts as a physical and electrical intermediary between devices in explosion-prone areas and data processing equipment. It receives data through the intrinsically safe second interface unit, temporarily stores it in its memory device, and then transfers it via the first standardized interface unit to external equipment. This mediator role maintains fast data exchange while ensuring that no direct electrical connection exists between the explosion-prone area and external equipment, preserving operational security.

The data exchange path is segmented into two separate connections: one through the intrinsically safe second interface unit connecting to devices in explosion-prone areas, and another through the standardized first interface unit connecting to data processing equipment. The data memory device bridges these segments, allowing fast local data collection while maintaining safe electrical isolation from external equipment, thus preserving both speed and safety.