6results about How to "Avoid switching failures" patented technology

The application relates to a double-nail-head carton nailing machine transmission mechanism capable of quickly switching between synchronous and separation modes, and relates to the technical field of carton nailing equipment. The double-nail-head carton nailing machine transmission mechanism comprises a carton nailing machine, an upper nail head mechanism and a lower nail head mechanism arranged on the carton nailing machine, and the upper nail head mechanism and the lower nail head mechanism are both connected with a transmission mechanism. The transmission mechanism comprises an upper nail head eccentric wheel, the upper nail head eccentric wheel is coaxially fixedly connected with an input shaft of the upper nail head mechanism, and the transmission mechanism comprises a lower nail head eccentric wheel, the lower nail head eccentric wheel is coaxially fixedly connected with an input shaft of the lower nail head mechanism. The application has the effects of simple structure, low cost and quick mode switching.

This invention belongs to the interdisciplinary field of power management and radiation measurement, aiming to solve the problem of inaccurate counting caused by shared power supply in radiation measurement. It provides a seamless power switching device and method for radiation measurement equipment. The switching device includes a controlled power-off unit, a transient competitive power supply network, and a static path maintenance unit. The controlled power-off unit is configured to connect the external power supply to the transient competitive power supply network in non-measurement states, and to disconnect the electrical connection between the external power supply and the transient competitive power supply network upon receiving a radiation measurement trigger signal. The transient competitive power supply network is configured to automatically transfer the power supply path of the static path maintenance unit from the external power supply to the internal energy storage power supply when the output voltage of the controlled power-off unit drops below the voltage of the internal energy storage power supply. The static path maintenance unit is configured to maintain connection with the radiation measurement equipment. This invention can solve the problem of inaccurate counting in radiation measurement equipment under shared power supply scenarios.

The application discloses a communication method, device, terminal, network side equipment, medium and computer program product, and belongs to the technical field of communication. The communication method of the application embodiment comprises the following steps: a terminal acquires deployment information of at least one first cell, the at least one first cell comprises at least one of the following: a service cell of the terminal, a neighboring cell of the service cell, and a conditional handover candidate cell; the terminal performs a first operation based on the deployment information; wherein the first operation comprises at least one of the following: sending first information, the first information is used for indicating a cell expected to be handed over; selecting a second cell; and handing over to the second cell, the second cell being a cell in the at least one first cell.

The utility model provides a bypass disconnecting link monitoring device. The bypass disconnecting link monitoring device comprises a shell and a disconnecting link assembly. The disconnecting link assembly comprises a rotating shaft, a driving component and two cams, the rotating shaft penetrates through the shell and is rotationally connected with the shell, and the driving component and the two cams are fixedly connected with the rotating shaft; a first switch assembly used for detecting the on-off state of the disconnecting link assembly is installed in the shell, a second switch assembly used for detecting the abnormal state of the first switch assembly is installed outside the shell, and the first switch assembly and the second switch assembly are electrically connected with the monitoring module. One of the two groups of cams is propped against the first switch assembly, the other group of cams is propped against the second switch assembly, and the two groups of cams drive the first switch assembly and the second switch assembly to synchronously open and close through respective convex parts; whether the bypass knife switch is switched in place or not can be judged by using the first switch assembly and the second switch assembly, the problem of overtime starting or switching failure of the SFC system is avoided, and the operation safety and reliability of the SFC system are improved.

The utility model discloses a kind of backup power supply switching circuit and device, including voltage detection unit;One end of the voltage detection unit is electrically connected with battery, and the other end of the voltage detection unit is electrically connected with load through first diode;The voltage detection unit is also electrically connected with commercial power through power conversion module;Commercial power is electrically connected with load in turn through power conversion module, second diode.The application also proposes a kind of backup power supply switching device, including the circuit as described in the above embodiment.It is beneficial to effect: the present application adopts pure hardware switching mechanism, saves software judgment and control time, voltage detection and switch response are completed in microsecond level, effectively avoid commercial power outage when power supply interruption, improve system running continuity.

The application relates to the technical field of brushless direct current motor control, in particular to a low-heat-emission emergency operation method for a brushless direct current motor based on double-branch safety redundancy. The brushless direct current motor is mounted on a preset aircraft; when any one stator winding branch occurs a circuit breaking fault, the remaining stator winding branch automatically undertakes all loads and passively switches to an emergency operation state of single-branch power supply; while switching to the emergency operation state, a forced air cooling system of an end cover corresponding to the brushless direct current motor is started to actively dissipate heat; a high-heat-dissipation-ratio heat dissipation rib structure arranged on a rotor shell of the brushless direct current motor is used to passively conduct heat dissipation of heat generated during operation of the brushless direct current motor, so that the temperature rising speed of the winding during single-branch operation is reduced. When any one branch occurs a circuit breaking fault, the remaining branch can still continue to output emergency power, so that the aircraft power interruption caused by complete motor failure is avoided.