| 摘要 |
<p>A system includes an ERTMS radio block centre which has been overlaid on an existing electronic interlocking comprises a corroborating means. The corroborating means is coupled to receive safety related control data from an interface of the electronic interlocking. A further coupling is made to receive safety critical data from the trackside interface of the interlocking. The corroborator uses the input from the trackside to validate control data before passing to the ERTMS RBC a safety critical version of the data or version having increased safety integrity. Preferably, the corroborator operates in a read only manner.</p> |
