Patent ID: 8633980
Filing Date: 2014-01-21
Classification: G01N

Abstract:
1. A monitoring apparatus having a detachable display device and a power failure protection, comprising: a camera module comprising a sleeve having a lens installed at an end of the sleeve, and a circuit board accommodated in the sleeve and having a camera lens and a light emitting element installed at positions corresponding to the lens; a serpent tube, with an end coupled to the camera module; a main body, coupled to another end of the serpent tube, and including a first terminal socket, a first port and a plurality of first switches disposed on a top of the main body, and a battery and a first circuit disposed in the main body, wherein the first terminal socket has a plurality of main body connecting terminals, the main body connecting terminals comprise a first main body connecting terminal electrically coupled to the first circuit through one of the first switches for receiving current transmitted from the battery through the first circuit, a second main body connecting terminal electrically coupled to the first circuit through another first switch for transmitting the current to the camera lens through the first circuit, a third main body connecting terminal electrically coupled to the first circuit through a first diode for transmitting the current to the light emitting element through the first circuit, and a fourth main body connecting terminal for receiving a video signal transmitted from the camera module through the first circuit; wherein an anode of the first diode is coupled to the third main body connecting terminal, and a cathode of the first diode is coupled to the first circuit; wherein one of the main body connecting terminals is electrically coupled to the battery through the first circuit, the remaining main body connecting terminals pass through the serpent tube and are electrically coupled to the camera module through the first circuit, the first port passes through the serpent tube and is electrically coupled to the camera module through the first circuit for connecting to a first plug of a transmission line, the first switches are coupled to a portion of main body connecting terminals respectively for disconnecting or connecting corresponding power supply currents of the main body connecting terminals respectively, and the camera module and the circuit board receive the current transmitted from the first circuit and transmit a video signal to the first circuit through the serpent tube; and a display device, having a second terminal socket, a second port and a plurality of second switches, a control circuit board and a second circuit installed in the display device, wherein the second terminal socket has a plurality of display terminals electrically connectable to the control circuit board, the second port is electrically coupled to the control circuit board through the second circuit and provided for connecting to a second plug of the transmission line, and the second switches are respectively and electrically coupled to a portion of the display terminals for disconnecting or connecting the power supply current of the display terminal; wherein the display terminal comprises a first display terminal electrically coupled to the second circuit through a second diode and transmitting current to the control circuit board through the second circuit, a second display terminal electrically coupled to the second circuit through one of the second switches and receiving a current transmitted from the control circuit board through the second circuit, a third display terminal electrically coupled to the second circuit through another second switch for receiving a current transmitted from the control circuit board through the second circuit, and a fourth display terminal for transmitting a video signal to the control circuit board through the second circuit; wherein, when the first terminal socket and the second terminal socket are inlaid with each other, the first display terminal is electrically coupled to the first main body connecting terminal, an anode of the second diode is coupled to the first display terminal, and a cathode of the second diode is coupled to the second circuit; when the first terminal socket and the second terminal socket are inlaid with each other, the second display terminal is electrically coupled to the second main body connecting terminal; when the first terminal socket and the second terminal socket are inlaid with each other, the third display terminal is electrically coupled to the third main body connecting terminal; and when the first terminal socket and the second terminal socket are inlaid with each other, the fourth display terminal is electrically coupled to the fourth main body connecting terminal; thereby, when the display device is installed to the main body, the second terminal socket is inlaid with the first terminal socket, such that the corresponding main body connecting terminal and display terminal are electrically conducted and the first switch and the second switch are in a closed status respectively and, when the display device is detached from the main body, the first switch and the second switch are in an opened status respectively, the main body connecting terminal and display terminal cannot receive electric power from the battery, and when the second port of the display device is electrically coupled to the first port of the main body via the first plug and the second plug of the transmission line, the control circuit is electrically conducted with the battery and the camera module.