2results about How to "Realize two-way communication" patented technology

The invention discloses a method and system for solving gas safety alarm control in a bidirectional wireless mode. The method comprises the steps that a gas leakage sensor of a gas alarm monitors whether gas leakage occurs or not; if a gas leakage sensor of the gas alarm monitors gas leakage, a first signal transmitting module of the gas alarm transmits gas leakage information to a second signal receiving module of a leakage prevention device mounted on a gas pipeline; a second signal transmitting module of the anti-leakage device transmits a first feedback signal to a first signal receiving module of the fuel gas alarm and feeds back received fuel gas leakage information, and meanwhile, a controller of the anti-leakage device controls a motor valve of the anti-leakage device to be closed to disconnect a fuel gas pipeline so as to prevent fuel gas leakage; a second signal receiving module of the anti-leakage device uploads the gas leakage information to the cloud platform; and meanwhile, the MCU of the gas meter controls the valve of the gas meter to be closed so as to prevent gas leakage. The anti-leakage device is good in anti-leakage effect and good in accuracy.

The application provides a battery management system and a battery management system control method, which comprise a master control module and a slave control module, the master control module comprises a sending circuit, an isolation circuit, a rectifier circuit and a comparison circuit, and the slave control module comprises a sending circuit, an isolation circuit, a rectifier circuit and a comparison circuit; the sending circuit is electrically connected with the isolation circuit and is used for transmitting a voltage input signal of the module where the sending circuit is located to the isolation circuit of the module; the isolation circuit is used for being communicatively connected with the isolation circuit in other modules and transmitting data in a superposition form; the rectifier circuit in the master control module or the slave control module is electrically connected with the isolation circuit and is used for rectifying an electric signal when the electric signal is received by the isolation circuit; and the comparison circuit in the master control module or the slave control module is electrically connected with the rectifier circuit and is used for receiving a signal input by the rectifier circuit, so that bidirectional communication of the master control and the slave control is realized.