Bruno Latour, Aramis, or the Love of Technology, PDF - Dss-edit.com

[DOCUMENT: MATRA REPORT BY M. LAMOUREUX,END OF PHASE 0, JUNE 1973; EMPHASIS ADDED]In order to be able to en s ure the basic functioning of theAramis principle, an Aramis car must be able to:-follow a speed profile provided while it is moving independentlyor as part of a train ("proceeding in a train") ;-take the turnoff to its target station ("removal of a carfrom the train") ;-stop in a station individually or as part of a train(" stat ion stop") ;-connect with a car that has just left a station(" linkup") ;-approach a car within a train after an intervening carhas been pulled out , in order to close the gap ("me rger") . *[p o 7JEvery car thus has to supervi se itself: the subsystems includecontrols that go into "onboard security soft wa re, "which has responsibility for detecting any abnormal functioningof the car and for ordering an "emergency stop." Theemergency-stop order is transmitted by a security transmissionto the neighboring cars and to the "ground securitysoftware," which informs the central calculator of the emergencystop .Paralleling these controls at the level of the cars, thecalculator supervi ses the normal progression of the selectedprogram and can also transmit an emergency-stop orderto the ground security software .All the cars in a train receive instructions about theirspeed, which are forwarded by the central calculator. The"functional onboard software" transmits these instructionsto the automatic guidance system:-i f the car is at the head of the train, the automatic guidancesystem brings the real speed of that car into line wi ththe assigned speed;*" Linkups are different from mergers; in mergers, both cars are actually movingat the same speed when the operation begins. There are fewer constraints on mergers,but the same equipment brings them about." [po 7 note]IS ARA/V\IS FEASIBLE?