Abstract: A numerical control method is provided, which is capable of uninterruptedly conducting control, at high speed, in accordance with various kinds of NC program. Command information stated in each of blocks of the NC program is read out and decoded by a first sub-CPU to prepare an intermediate data which is to be stored in a first shared RAM. This intermediate data is converted into data of execute form by a second sub-CPU and is stored in a second shared RAM. Preparatory processings for two blocks, each starting from the reading operation of the command information and ending at the preparation of the execute form data, are conducted simultaneously, so that a time period required for execution of each preparatory processing is shortened in apperance, to thereby prevent interruption of the numerical control due to a delay in the preparatory processing.

Abstract: A portable self-contained surge level controller detects the liquid level in a vessel, such as by neutron backscatter, and adjusts inlet or outlet flow to compensate for incoming surges while minimizing outgoing flow disturbances.

Abstract: The Controller is a logical network which, when interfaced with a mechanical system or an electromechanical system, will cause the output variable of the system to closely follow any command signal received. It comprises shift registers, memory banks, accumulators, arithmetic units and preferably no software. The device works in two stages. In the first stage it identifies the unit-impulse response of the system piece-by-piece while using the accumulated information to control the system at the same time. In the second stage it continually readjusts the stored information at each clock pulse by comparing the observed output signal and the command signal, while generating the required control variable based on the updated information. Its operation incorporates a learning process which emulates a simple form of human intelligence.