Boots – shoes – and leggings
Patent
1996-12-13
1999-10-19
Trammell, James P.
Boots, shoes, and leggings
364191, 364192, 36518529, 36518533, 711154, 711163, G05B 19042, G05B 1905
Patent
active
059702516
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a process for optimizing data and/or program parts for programmed controllers.
BACKGROUND OF THE INVENTION
A process is already known from German Patent No. 3,018,275 A1 for optimizing data and/or program parts for programmed controllers. In that process, the control program of a controller is initially copied to a data/program memory unit external to the controller. This memory unit is connected via a serial data transmission line to a control unit that is also external to the controller. The memory unit has a read-write memory that can be accessed by the control unit as well as the controller. Preprogrammed changes are entered into the memory unit via the control unit. The controller runs the program in the memory unit. The program/data changes in the memory unit act directly on the control process carried out by the controller. The effects can be observed directly. The data/programs of the controller are optimized in this way.
German Patent No. 3,917,979 A1 discloses another method of optimizing data and/or program parts for programmed controllers, where the programmed read-only memory of the controller is removed from the controller and a data manipulation device is inserted into the controller instead. The read-only memory removed from the controller is also inserted into the data manipulation device. In addition, the data manipulation device also contains a read-write memory.
The contents of the read-only memory are transferred to the read-write memory at the beginning of an optimization procedure. The controller is connected to an external input device via a serial interface. This input device is used to enter data and make program changes in the read-write memory of the data manipulation device. The data manipulation device also contains a switching device that makes it possible to switch between the read-write memory and the read-only memory. The microprocessor of the controller works either with the read-write memory or with the read-only memory, depending on the switch.
SUMMARY OF THE INVENTION
The process according to the present invention, has the advantage that the standard controller already developed can be used for optimization of data and/or program parts. No circuitry changes need to be made in the standard controller in order to optimize the data and/or program parts. It is not even necessary to open the controller. Thus, the process proposed here is a very inexpensive solution because not only are no circuitry changes needed in the standard controller in order to optimize the data and/or program parts but also the data and/or program parts can be optimized more rapidly because there is no need for complicated rewiring work (i.e., relocating components, insulating and shielding). Furthermore, the susceptibility of the process to errors is reduced. Faulty wiring cannot occur as frequently. The danger of interference due to additional connecting lines is also reduced.
It is also advantageous since it is easy to optimize data and/or program parts for controllers with single-chip microprocessors (where the prograrm/data memory is integrated into the microprocessor). For optimization of data and/or program parts it is necessary only to connect an external application device (such as a suitably programmed personal computer) to the serial interface of the controller via a serial data transmission cable.
It is especially advantageous that certain branches are provided in the control program in the form of conditional branches that lead to a branch only when a certain code word has first been entered via the application device. Thus a switch can be executed between the revised data in the data/program read-write memory and the original data in the data/program read-only memory by means of a simple program query.
It is advantageous for the process if a flash EPROM is used as the program/data read-only memory. Then the program in the flash EPROM can be revised within a very short period of time for a specific application--for example,
REFERENCES:
patent: 3798612 (1974-03-01), Struger et al.
patent: 4538224 (1985-08-01), Peterson
patent: 5390333 (1995-02-01), Pritt et al.
patent: 5530673 (1996-06-01), Tobita et al.
Kleinschmidt Uwe
Krampe Wolfgang
Schulz Udo
Wagener Martin
Zimmermann Jurgen
Nguyen Cuong H.
Robert & Bosch GmbH
Trammell James P.
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