Method and arrangement for reloading processor control programs
First Claim
1. A method for a reloading processor control program into a read only memory protected against erasing in processor-controlled apparatus, comprising the steps of:
- providing a wireless data transmission interface in the processor-controlled apparatus, the processor-controlled apparatus being a mobile apparatus having a means for loading and a read only memory, said means for loading controlling the communication of the data transmission interface as well as erasing and reprogramming the read only memory;
providing a wireless data transmission interface in a reloading station;
informing, via the wireless data transmission interface in the reloading station, the mobile apparatus of the presence of a processor control program or parts thereof;
requesting, via the wireless data transmission interface in the processor-controlled apparatus, the processor control program or program parts thereof to be reloaded in blocks by the processor-controlled apparatus from the reloading station;
loading said processor-controlled program or program parts thereof into the read only memory via a communication link between said data transmission interfaces of said processor-controlled apparatus and of said reloading station;
protecting individual program blocks by check sums during block-by-block transmission; and
after an end of the reprogramming, checking said reloaded processor control program or program parts thereof by length comparison and check sum comparison to ensure that data transmission of the processor-controlled program or program parts thereof occurred error-free.
1 Assignment
0 Petitions
Accused Products
Abstract
In a read only memory protected against erasure in processor-controlled apparatus, the loading occurs via a wireless data transmission interface. The processor-controlled apparatus is a mobile apparatus in which a loader provided for loading the read only memory is installed. This loader controls the communication of the data transmission interface as well as the erasing and reprogramming of the read only memory. The processor control program or program parts thereof to be reloaded are requested by the processor-controlled apparatus in blocks from a reloading station which likewise has a wireless data transmission interface and are written into the read only memory. The individual program blocks are protected by check sums in the block-by-block transmission. After the end of the programming, the processor control program that has been reloaded is checked by length comparison and check sum comparison to ensure that the data transmission was error-free.
18 Citations
15 Claims
-
1. A method for a reloading processor control program into a read only memory protected against erasing in processor-controlled apparatus, comprising the steps of:
-
providing a wireless data transmission interface in the processor-controlled apparatus, the processor-controlled apparatus being a mobile apparatus having a means for loading and a read only memory, said means for loading controlling the communication of the data transmission interface as well as erasing and reprogramming the read only memory; providing a wireless data transmission interface in a reloading station; informing, via the wireless data transmission interface in the reloading station, the mobile apparatus of the presence of a processor control program or parts thereof; requesting, via the wireless data transmission interface in the processor-controlled apparatus, the processor control program or program parts thereof to be reloaded in blocks by the processor-controlled apparatus from the reloading station; loading said processor-controlled program or program parts thereof into the read only memory via a communication link between said data transmission interfaces of said processor-controlled apparatus and of said reloading station; protecting individual program blocks by check sums during block-by-block transmission; and after an end of the reprogramming, checking said reloaded processor control program or program parts thereof by length comparison and check sum comparison to ensure that data transmission of the processor-controlled program or program parts thereof occurred error-free. - View Dependent Claims (2, 3, 4)
-
-
5. An arrangement for reloading a processor control program into a read only memory protected against erasing in processor-controlled apparatus of a vehicle, comprising:
-
a fixed reloading station having a computer connected to a wireless data transmission interface and having a display; processor-controlled apparatus of the vehicle having an on-board computer with a read only memory and having a wireless data transmission interface; and said data transmission interfaces of said fixed reloading station and said vehicle being coupled by a communication link, the on-board computer of the vehicle controlling communication of the data transmission interface of the vehicle, as well as the erasing and reprogramming of the read only memory; wherein the reloading station informs the vehicle of the presence of a processor control program to be reloaded or program parts thereof, wherein the processor control program to be reloaded or program parts thereof are requested in blocks by the on-board computer from the reloading station and are loaded into the read only memory via the communication link, wherein individual program blocks are protected by check sums during block-by-block transmission, and wherein after an end of the reprogramming, the reloaded processor control program or program parts thereof is checked by length comparison and check sum comparison to ensure that data transmission of the processor-controlled program or program parts thereof occurred error-free. - View Dependent Claims (6, 7, 8, 9, 10, 11)
-
-
12. An arrangement for reloading a processor control program into a read only memory protected against erasing in processor-controlled apparatus of a vehicle, comprising:
-
a fixed reloading station having a computer connected to an infrared data transmission interface and having a display; processor-controlled apparatus of the vehicle having an on-board computer with a read only memory, having an infrared data transmission interface, and having a display means; said data transmission interfaces of said fixed reloading station and said vehicle being coupled by a communication link, the on-board computer of the vehicle controlling communication of the data transmission interface of the vehicle, as well as the erasing and reprogramming of the read only memory; the data transmission interface of the vehicle and the data transmission interface of the reloading station also being components of a predetermined traffic routing and information system having infrared beacons; the display means of the reloading station as well as the display means of the vehicle indicating a reloading event; means for informing, via the wireless data transmission interface in the reloading stations, the mobile apparatus of the presence of a processor control program or parts thereof; means for requesting by the on-board computer that the processor control program be reloaded or program parts thereof in blocks from the reloading station; and wherein the processor control program to be reloaded on parts thereof are loaded into the read only memory via the communication link, wherein individual program blocks are protected by check sums during block-by-block transmission, and wherein after an end of the reprogramming, the reloaded processor control program or program parts thereof is checked by length comparison and check sum comparison to ensure that data transmission of the processor-controlled program or program parts thereof occurred error-free. - View Dependent Claims (13, 14, 15)
-
Specification