Mobile data memory
A mobile data memory which is designed such that it can be used in an intrinsically safe manner in explosion-prone areas includes a memory device which has a first interface and a second interface for data exchange, wherein the second interface is designed in an intrinsically safe manner and for data exchange with a device, in particular with a sensor, and the first interface is designed for data exchange with data processing equipment, in particular for data evaluation.
1. A mobile data memory ( 10 ) having a memory device ( 32 ), wherein the mobile data memory is designed such that it can be used in an intrinsically safe manner in explosion-prone areas,
wherein the memory device ( 32 ) has a first interface ( 12 ) and a second interface ( 14 ) for data exchange, wherein the second interface ( 14 ) is designed as intrinsically safe and for data exchange with a device and wherein the first interface ( 12 ) is designed for data exchange with data processing equipment.
2. A mobile data memory ( 10 ) in accordance with claim 1 , wherein the second interface ( 14 ) is designed as intrinsically safe and for data exchange with a sensor.
3. A mobile data memory ( 10 ) in accordance with claim 1 , wherein the first interface ( 12 ) is designed for data evaluation with the data processing equipment.
4. A data memory ( 10 ) in accordance with claim 1 , wherein the two interfaces ( 12 , 14 ) are configured for different data exchange standards.
5. A data memory ( 10 ) in accordance with claim 4 , wherein the first interface ( 12 ) is configured for USB (universal serial bus) and the second interface ( 14 ) is configured for SPI (serial peripheral interface).
6. A data memory ( 10 ) in accordance with claim 1 , wherein the first interface ( 12 ) is arranged so that it is not accessible when the second interface ( 14 ) is being used.
7. A data memory ( 10 ) in accordance with claim 1 , wherein the second interface ( 14 ) is designed so that data transmitted to the memory device ( 32 ) by it are stored in the memory device ( 32 ) without using a file system.
8. A data memory ( 10 ) in accordance with claim 7 , wherein the first interface ( 12 ) includes a control unit ( 20 ), wherein the control unit ( 20 ) is adapted to carry out a conversion of the data stored in the memory device ( 32 ) into a file system.
9. A data memory ( 10 ) in accordance with claim 8 , wherein the control unit ( 20 ) is switched off when the second interface ( 14 ) of the data memory ( 10 ) is being used.
10. A data memory ( 10 ) in accordance with claim 1 , wherein the first interface ( 12 ) and the second interface ( 14 ) are galvanically separate from one another.
11. A sensor system comprising
a data memory ( 10 ) having a memory device ( 32 ), wherein the mobile data memory is designed such that it can be used in an intrinsically safe manner in explosion-prone areas,
wherein the memory device ( 32 ) has a first interface ( 12 ) and a second interface ( 14 ) for data exchange;
an intrinsically safe sensor having an interface for communication with the second interface ( 14 ) of the data memory ( 10 ); and
data processing equipment, wherein the data processing equipment enables a communication with the first interface ( 12 ) of the data memory ( 10 ).