Method for controlling safety-critical railway operating process and device for carrying out said method
An operation process, railway technology, applied in the direction of interlocking devices between turnouts and signals, transportation and packaging, railway signals, etc., can solve the problems of time-consuming and expensive establishment and verification, unsightly software packages, complex software packages, etc.
Inactive Publication Date: 2006-12-13
SIEMENS AG
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Problems solved by technology
By mixing system software and railway management specific software in each computer, resulting in complex software packages that are difficult to visualize and time consuming and expensive to build and validate
Method used
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Embodiment Construction
[0012] figure 2 A well-known signaling-technologically reliable computer SR is shown for processing, preferably by means of the same processing program, in two separate processing channels K1 , K2 . The reliable computer SR denotes any number of signal-technical reliable computers; its number depends essentially on the size of the process to be controlled. The process to be controlled is a railway operating process for acting on the railway installation BA. In the diagram, a switch W and a signal S represent process components of the railway system. The control and monitoring of the process components is carried out by control and monitoring circuits developed for this purpose, which are not explicitly shown in the figure, through which the reliable computer SR sends control commands to the process components and from which the prompt M is input to the reliable computer.
[0013] The signaling computer SR outputs the reminders M transmitted to it from the process via the c...
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The invention relates to a method for controlling a safety-critical railway operating process in which the programme necessary for the above is divided into a system software (V,PMS) and a software (BO) specific for railway management. External commands (K) and messages (M), which affect the control, are recorded and transmitted to commercial computers (R1,R2) in which the actual process control runs, by means of the system software running in one or several secure signalling computers (SR*), as defined by the relevant railway operating condition. The processing of the programme specific for railway management can occur in two channels, parallel or serially, whereby the monitoring of whether the commercial computers have reached the same result is carried out in the secure signalling computers. The output (SB) to the process (BA) for control also occurs from there, so long as the secure comparison recognises that the commercial computers have provided the corresponding process result at least twice, otherwise the signalling connection to the process elements (W,S) is securely cut. The advantage of the invention is that the same software can always be used for the secure signalling computers and the railway management software can be separately developed and checked without being linked to the system software. Significant cost and time savings can thus be made relative to the state of the art without affecting safety.
Description
technical field [0001] The invention relates to a method for controlling a safety-critical railway operation process using at least one signal-technologically reliable computer, which processes input commands in a signal-technically reliable manner in accordance with railway operating regulations, And the processed control command signal technology is reliably output to the process components, and the prompts generated by the process components are used for process state monitoring and process control, and a device for implementing the method. Background technique [0002] Railway operations are safety-critical processes, since possible malfunctions can lead to considerable material damage and possibly injury to persons if they are not recognized in time and their influence on the process is prevented. For this reason, signal-technologically reliable devices have been used to date for the control of such processes, the task of which is to detect internal malfunctions in the ...
Claims
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IPC IPC(8): B61L21/00G06F11/16B61L19/06G06F11/14
CPCG06F11/1683B61L21/00G06F11/1497G06F11/1641G06F11/1625
Inventor 沃尔克·戈里克伯恩德·普拉德拉尔夫·希瓦辛斯克
Owner SIEMENS AG