8results about "Current supply arrangements" patented technology

Embodiments of the invention disclose a method, a device and a system for processing a wake-up lock, and belong to the field of computer technology. The method comprises the following steps: detecting whether a wake-up lock is in a working state, and if so, obtaining a wake-up parameter corresponding to the wake-up lock, wherein the wake-up parameter comprises an arithmetic operation corresponding to the wake-up lock and an application program corresponding to the wake-up lock; judging whether the arithmetic operation corresponding to the wake-up lock requires a sensor of a terminal; if not, generating a wake-up transfer request according to the wake-up parameter, sending the wake-up transfer request to a server, and releasing the wake-up lock, wherein the server is used for executing the arithmetic operation corresponding to the wake-up lock; and receiving a wake-up message sent by the server, and waking up the terminal according to the wake-up message. By adopting the method disclosed by the invention, after a display screen of the terminal is closed, the system time occupancy of the application program can be reduced, the power consumption of the terminal is reduced in the case that the display screen of the terminal is closed, and the standby time of the terminal is prolonged.

Techniques are provided for diminishing power loss in electrical conductors used to provide electrical power to a radio configured to use time domain duplexing (TDD). Because the TDD radio typically transmits data during a downlink subframe, the TDD radio generally consumes more power, and thus draws more current through the electrical conductors, then during an uplink subframe when the TDD radio is configured to receive. Thus, during the downlink subframe, a DC voltage, output by a DC-DC voltage converter to the electrical conductors, is increased to lessen current drawn by the radio through the electrical conductors. As a result, power loss in the electrical conductors is reduced.

This utility model discloses an intrinsically safe emergency stop loudspeaker telephone for mining, comprising a housing, a communication component, and an emergency stop locking mechanism. The housing has a working chamber. The communication component includes a speaker, a microphone, and an audio processing circuit board. The speaker and microphone are disposed on the surface of the housing, and the audio processing circuit board is installed in the working chamber. The speaker and microphone are electrically connected to the main controller of the audio processing circuit board. The emergency stop locking mechanism includes an emergency stop component and two operating levers disposed through the housing, and a locking control circuit board installed in the working chamber. The emergency stop component and the two operating levers are electrically connected to the locking control circuit board. It provides a rapid-response emergency stop function in emergency situations and enables clear audio communication to coordinate with the overall operation of the mine system, ensuring stable operation in harsh environments and improving the safety and reliability of internal mine communication.

The present invention comprises: a power supply device (51) that supplies a DC voltage between a first subscriber line (P1) and a second subscriber line (P2); and a letter coil (20) that is installed between the first subscriber line (P1) and the second subscriber line (P2) and the power supply device (51), and that blocks an AC signal. The power supply device (51) can change the DC voltage.

The application relates to a double-circuit intelligent mine safety communication circuit and a telephone, wherein the communication circuit comprises a double-circuit switching circuit electrically connected with a master processor of the telephone, which is used for receiving input signals entering a mine intrinsic safety automatic telephone; a telephone ringing signal detection circuit electrically connected with the master processor, which is used for receiving input alternating current signals entering the mine intrinsic safety automatic telephone; a telephone ringing circuit electrically connected with the telephone ringing signal detection circuit, which is used for receiving input alternating current signals of the telephone ringing signal detection circuit; and an audio signal processing and protocol communication circuit electrically connected with the master processor, which is used for receiving and sending voice and protocol signals. The double-circuit telephone access mode is adopted, when one of the two circuits is disconnected or short-circuited, the communication can still be guaranteed, and the safety of mine communication is ensured.

This provides mobile devices that allow the use of NFC authentication functions (such as Apple Pay and Suica) even when the battery is completely dead. [Solution] The mobile device generates electricity when shaken (S101). The generated electricity is stored in a capacitor inside the mobile device (S102). When the mobile device is held over the NFC reader / writer of the ticket gate, the NFC antenna inside the mobile device reacts to the external magnetic field (S103). The ultra-low power consumption MCU inside the mobile device starts up and operates using the power from the capacitor, and the NFC controller is started up using the power from the capacitor (S104). After the NFC controller is started up, the secure element inside the mobile device communicates with the NFC reader / writer using the power supplied by the external magnetic field and the NFC function (S105). The secure element performs the authentication process (S106).