Abstract: The present invention discloses a port district sea line multiple vessel monitoring system and operating method thereof. Specifically, the port district sea line multiple vessel monitoring system comprises a processing module, a storage module, a camera and a floating object information receiving module. The port district sea line multiple vessel monitoring system may automatically recognize image classification of water surface object, therefore to determine operation of patrol mode, monitor mode or auxiliary recognizing mode for satisfying the needs of monitoring of port district sea line.

Abstract: A photoresist composition includes a mixture. The mixture includes a first photosensitive material and a second photosensitive material. The first photosensitive material is a 6-Sn oxide cluster, a 12-Sn oxide cluster or a combination thereof. The second photosensitive material has a composition being different from a composition of the first photosensitive material.

Abstract: A control circuit for an isolated power converter includes a first sensing circuit that senses a secondary side output voltage and produces a pulse width modulation (PWM) signal having a duty cycle that is proportional to a value of the secondary side output voltage. The PWM is transferred a cross the converter isolation barrier to the primary side, and a primary side circuit receives the PWM signal and outputs a control signal. A controller determines the value of the secondary side output voltage from the control signal and uses the value to control primary side power switching devices of the isolated power converter to regulate the secondary side output voltage at a selected value.

Abstract: The present invention discloses a vessel tracking and monitoring system and operating method thereof. Specifically, the vessel tracking and monitoring system comprises at least one camera, a processing module and a storage module. On the other hand, the processing module may keep the water object which is detected and recognized by the at least one camera in the center area of a monitoring screen. Therefore, the present invention may track and recognize the type of the at least one water object, assisting areas such as ports in managing and tracking water object arrivals and departures under various environmental conditions.

Abstract: A control circuit for an isolated power converter includes a first sensing circuit that senses a secondary side output voltage and produces a pulse wave modulation (PWM) signal having a duty cycle that is proportional to a value of the secondary side output voltage. The PWM is transferred across the converter isolation barrier to the primary side, and a primary side circuit receives the PWM signal and outputs a control signal. A controller determines the value of the secondary side output voltage from the control signal and uses the value to control primary side power switching devices of the isolated power converter to regulate the secondary side output voltage at a selected value.

Abstract: An electrical connector comprises an insulated housing (1) having a base (10) a plurality of conductive terminals (2) retained in the housing and a shielding member (3) assembled on the housing. The base extends along a longitudinal direction and defines a latching hole (16) recessed at one of lengthwise ends of thereof. The shielding member has a latching portion (34) extending along a mating direction of the electrical connector perpendicular to the longitudinal direction so as to be retained in said latching hole.

Abstract: An electrical connector comprises an insulated housing (1) having a base (10) a plurality of conductive terminals (2) retained in the housing and a shielding member (3) assembled on the housing. The base extends along a longitudinal direction and defines a latching hole (16) recessed at one of lengthwise ends of thereof. The shielding member has a latching portion (34) extending along a mating direction of the electrical connector perpendicular to the longitudinal direction so as to be retained in said latching hole.