5results about How to "Realize the communication function" patented technology

This utility model discloses a combined antenna with lead wires, comprising: a housing and a base plate; a communication array and a positioning array are disposed within the housing, and the communication array and positioning array are respectively connected to the inner side of the base plate; a communication port connector passes through the base plate, and the communication array communicates with the communication port connector; a lead wire also passes through the outer side of the base plate, and an array port connector is disposed at the bottom of the lead wire, and the positioning array communicates with the array port connector through the lead wire. The combined antenna's communication array communicates with the communication port connector, and the positioning array communicates with the array port connector through the lead wire, thus realizing data communication and positioning functions and ensuring the operational stability of the combined antenna; furthermore, replacing the original fixed positioning array with a lead wire method facilitates the installation of the combined antenna and is applicable to rail transit systems with narrow top openings, ensuring the ease of installation and performance of the combined antenna.

The application provides a light-transmitting panel, a sunroof and a vehicle. The light-transmitting panel comprises a light-adjusting module and an antenna module. The light-adjusting module comprises a liquid crystal layer and two oppositely arranged light-adjusting structure layers. The liquid crystal layer is located between the two light-adjusting structure layers. The light-adjusting structure layer comprises a substrate and an electrode layer arranged in a stack. The electrode layer is arranged on the side of the substrate close to the liquid crystal layer. The antenna module is arranged on at least one of the two light-adjusting structure layers. The antenna module comprises a wire main body and an opening formed by the wire main body. According to the application, the functional integration and utilization of the light-transmitting panel can be effectively improved.

The application relates to a signal transmission method between a fire telephone main machine and a fire telephone extension and a fire telephone system, wherein a near-end optical transmission device is connected with the fire telephone main machine, a far-end optical transmission device is connected with the fire telephone extension, the near-end optical transmission device is connected with the far-end optical transmission device through an optical fiber; an electric signal of analog audio data on a first fire telephone bus is converted into an optical signal by the near-end optical transmission device, and the converted optical signal is transmitted through the optical fiber; the signal transmission method between the fire telephone main machine and the fire telephone extension and the fire telephone are ingeniously designed; the converted optical signal is transmitted through the optical fiber; the optical fiber has the advantages of low loss, high bandwidth, strong anti-electromagnetic interference capability and the like; the transmission distance of general optical signals can reach at least 20 kilometers; during the transmission process, the optical fiber is not conductive, is not interfered by electromagnetic waves, is less affected by resistance and voltage, and the stable transmission of signals in a complex electromagnetic environment is ensured.

This invention provides a USB master-slave mode power hardware switching circuit for an industrial control board SOC, belonging to the field of embedded hardware circuit design technology. It includes: a first transistor, a second transistor, a third transistor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, and a USB connector. The power pin of the USB connector is connected to the emitter of the first transistor, its collector is connected to the OTG detection pin through the fourth resistor, the detection pin is grounded through the fifth resistor, its base is connected to the collector of the second transistor through the second resistor, and its base is connected to the identification pin through the first resistor. The base of the third transistor is connected to one end of the third resistor, and its other end is connected to the identification pin. The emitter of the third transistor is connected to the board's power supply, and its collector is connected to the power pin of the USB connector. This invention integrates multiple functions such as program download, communication with a host computer, and USB flash drive data reading and writing on a single USB interface.

The invention provides a wearable electronic device. The wearable electronic equipment comprises an antenna assembly, and the antenna assembly comprises a radiator and a feed source. The radiator comprises a first sub-radiator and a second sub-radiator; the first sub-radiator is provided with a first free end, a feeding point and a second free end which are arranged in sequence, and the first free end and the second free end form a first opening; the second sub-radiator and the first sub-radiator are arranged at intervals in the first direction and are electrically connected, the second sub-radiator is provided with a third free end and a fourth free end, and the third free end and the fourth free end form a second opening; the feed source is electrically connected to the feed point so as to excite a first resonant mode of the first sub-radiator to support a first target frequency band and excite a second resonant mode of the second sub-radiator to support a second target frequency band, the first resonant mode is a half-wavelength dipole mode, the second resonant mode is a half-wavelength dipole mode, and the second target frequency band is a half-wavelength dipole mode. The frequency of the second target frequency band is greater than that of the first target frequency band.