68results about How to "Maintain normal state" patented technology

A method for verifying a control system (2) of a vessel (4), in which said control system (2) in its operative state receives sensor signals (7) from sensors (8) and command signals (9) from command input devices (10), and as a response provides control signals (13) to actuators (3) in order to maintain a desired position, velocity, course or other state of said vessel (4), characterized by the following steps: during a time (t0), disconnecting the reception of real sensor signals (7a, 7b, 7c, ..) and replacing said real sensor signals by a test sequence (T0) of artificial measurements (7a', 7b', 7c', ..) from a test signal source (41); letting said control system (2) work based on the artificial sensor signals (7, 7') to generate control signals (13') to be recorded as a response (S0) to said first test sequence (T0) for said first time (t0) on a control signal logger (42) and storing response (SO) to the test sequence (T0) as the control system's (2) ''signature'' response (S0); said method having the purpose of, at a later time (t1, t2, t3, ..), to use the test sequence (T0) input to the control system (2), and record a later response (S1, S2, S3, ...) and determining whether said later response similar to the signature response (S0) to verify that said control system (2) is unchanged, or not.

A method for inspecting a control system (2) of a ship (4), wherein the control system (2) in its operating state receives sensor signals (7) from a sensor (8) and from a command input device (10 ), and in response, the control system (2) provides a control signal (13) to the actuator (3) to maintain the desired position, speed, heading or other of the vessel (4) state, characterized by the following steps: at a first moment (t0), the reception of one or more actual sensor signals (7a, 7b, 7c, ...) is disconnected and used from the test signal source ( 41) The test sequence (T0) of simulated measurement data (7a′, 7b′, 7c′...) replaces the actual sensor signal; let the control system (2) be based on the simulated sensor signal (7, 7') work to generate a control signal (13') as a response (S0) to the first test sequence (T0) at the first time (t0) ) is recorded on the control signal recorder (42) and the response (S0) to the test sequence (T0) is stored as a "characteristic" response (S0) of the control system (2); the method has the following purpose: in subsequent time (t1, t2, t3, ...), use the test sequence (T0) to input to the control system (2), and record the subsequent responses (S1, S2, S3, ...) , and determine whether the subsequent response is similar to the characteristic response (S0) to verify whether the control system (2) has changed.

The invention relates to a locking apparatus and a cap having the same. The locking apparatus is arranged on a cap which includes a main body part supported by one side of a container opening and an opn-close part that is supported by the main body part and can cover one side of the container opening, the locking apparatus capable of opening or closing a connecting state of the open-close part andthe main body part. The locking apparatus includes: a locking part, one side of which can pressurize one field of the open-close part; a convergence pin which is supported by the main body part and supports convergence of the locking part; an elastic part which provides elasticity to enable one field of the open-close part to be pressurized by the locking part; a movement part, one side of whichmoves in one direction of the locking part and which enables the elastic part to contract; and an open limit part, which is formed by protruding from the main body part and forms a clamp hole to allowinsertion of one portion of the movement part.

If it is determined that a malfunction has occurred in an electrical hydraulic pump and the hydraulic fluid is not supplied to a high hydraulic pressure supplied portion from the electrical hydraulic pump, the hydraulic fluid is supplied to the high hydraulic pressure supplied portion from a mechanical hydraulic pump that usually supplies the hydraulic fluid to a low hydraulic pressure supplied portion. In this case, the hydraulic pressure that is generated by the mechanical hydraulic pump is increased by increasing the output from the engine that drives the mechanical hydraulic pump.