8results about How to "Realize wireless communication" patented technology

The application provides a multi-frequency antenna and a communication device. The multi-frequency antenna comprises a reflecting plate, a first radiating unit and a second radiating unit, the first radiating unit and the second radiating unit are arranged on one side of the reflecting plate, and the first radiating unit is located between the reflecting plate and the second radiating unit. The first radiating unit comprises a first radiating part and a metal plate, and the metal plate is located between the first radiating part and the second radiating unit. The second radiating unit comprises a second radiating part and a metal ring, and the metal ring is located between the second radiating part and the metal plate. When the above structure is adopted, the size of the multi-frequency antenna as a whole can be reduced, and the first frequency band and the second frequency band have high isolation, so that the two frequency bands can work independently, the multi-frequency antenna can meet the miniaturization demand of the common antenna surface, the antenna works stably, and the efficiency is high.

The utility model relates to the technical field of lead sealing labels, in particular to a passive type container lead sealing label with an anti-disassembly detection function, which comprises a lead sealing label body, an acrylate polymer is fixedly arranged in the lead sealing label body, an ABS (acrylonitrile butadiene styrene) high-strength plastic layer is fixedly arranged at the outer end of the acrylate polymer, and an anti-disassembly detection layer is fixedly arranged at the outer end of the ABS high-strength plastic layer. A mounting cavity is formed in the inner end of the acrylate polymer, and an RFID chip is fixedly mounted in the mounting cavity; according to the lead seal label, the acrylic polymer and the ABS high-strength plastic layer are installed, the anti-dismantling performance of the lead seal label can be improved conveniently, the acrylic polymer and the ABS high-strength plastic layer are matched with each other, the effect that the inner layer is fragile and the outer layer is resistant to impact can be achieved, the RFID chip is embedded in the fragile acrylic polymer, and the anti-dismantling performance of the lead seal label is improved. Physical anti-disassembly and electronic detection can be combined, and the environmental adaptability of the lead sealing label can be improved due to the ABS high-strength plastic layer with good toughness and corrosion resistance.

The embodiment of the utility model discloses a control system of a multifunctional reading lamp, which comprises an intelligent bracelet, a bracelet main body, a first microcontroller, a temperature sensing module, a signal sending module and a first power supply module, and the first microcontroller, the temperature sensing module, the signal sending module and the first power supply module are arranged in the bracelet main body. The signal transmitting module is used for receiving a temperature signal and transmitting the temperature signal to the first microcontroller, and the first microcontroller is used for transmitting the received temperature signal to the multifunctional reading lamp through the signal transmitting module; the signal receiving module is used for transmitting a received temperature signal transmitted by the smart bracelet to the second microcontroller, the second microcontroller is used for generating a corresponding light signal according to the received temperature signal and transmitting the light signal to the LED driving circuit, and the LED driving circuit is used for controlling the display state of the LED lamp group according to the received light signal. According to the scheme of the embodiment of the utility model, wireless communication and interaction between the intelligent bracelet and the multifunctional reading lamp are realized, and convenience is provided.

The invention belongs to the field of drilling engineering, and particularly relates to a combined near-bit measurement-while-drilling communication system which is characterized in that a near-bit measurement module and a short-range transmitting antenna module are arranged on a near bit, and the near-bit measurement module wirelessly transmits measurement signals out through the short-range transmitting antenna module, so that cable transmission is saved; and the remote receiving antenna module uploads the signal through the slurry, so that the system enables the measurement module to be arranged at the lower part of the near-bit for measurement. Meanwhile, whether collection is started or not can be judged through the rotary switch module, and electric energy is saved.

This invention provides a high-efficiency, low-temperature-rise passive harmonic filter, belonging to the field of filters. It includes a main base housing and a top housing with evenly spaced heat dissipation side slots on both sides, which work in conjunction with symmetrically fixed cooling fans on the inner side to form an effective airflow channel. The cooling fans draw external cool air into the top housing, accelerating airflow and allowing heat to be quickly dissipated to the external environment, significantly improving heat dissipation efficiency. The evenly fixed heat dissipation side plates on the outer side of the passive harmonic filter further increase the heat dissipation area, while the porous structure of the perforated support plate also facilitates airflow and enhances the heat dissipation effect. Through these heat dissipation designs, the temperature rise of the filter during operation is effectively reduced, ensuring that the internal electronic components operate in a suitable temperature environment, improving component performance and lifespan, reducing the failure rate caused by overheating, and improving the reliability and stability of the filter.

This invention provides a radio frequency (RF) sensor and a wireless sensing device, belonging to the field of communication technology. The RF sensor includes an RF carrier generator, a piezoelectric sensor, and a phase modulator. The RF carrier generator generates an RF carrier signal; the piezoelectric sensor converts a physical excitation signal into a sensing voltage signal; the phase modulator has an RF signal input terminal, an RF signal output terminal, and a modulation electrode, which is disposed between the RF signal input terminal and the RF signal output terminal. The RF signal input terminal is connected to the RF carrier generator, and the modulation electrode is connected to the piezoelectric sensor. This RF sensor eliminates the high-power, complex modulation device and uses passive, low-power acoustic devices to complete the signal chain processing, thereby significantly reducing system power consumption, simplifying the system structure, and clearing obstacles for miniaturizing RF sensors.

The utility model relates to a kind of photoelectric acquisition devices of bluetooth communication, belong to infrared optical communication technical field.It includes charging and control circuit, infrared pair tube drive circuit and bluetooth communication chip circuit;Charging and control circuit includes primary step-down circuit and secondary step-down circuit;Primary step-down circuit includes chip HT7536 and super capacitor;Input voltage is connected with the input end of chip HT7536, and super capacitor is connected with the output end of chip HT7536;Secondary step-down circuit includes chip HT7533;The output voltage of primary step-down circuit is the output voltage of secondary step-down circuit;Infrared tube drive circuit includes photoelectric sending circuit and photoelectric receiving circuit;Bluetooth communication chip circuit includes chip RM1200;Pin 5 of chip RM1200 is connected with photoelectric sending circuit, and pin 6 of chip RM1200 is connected with photoelectric receiving circuit;The output end of secondary step-down circuit is connected with pin 29 of chip RM1200.

The invention discloses a pickup device, a pickup system and a smart home system. The pickup device comprises an acquisition module, a signal processing module and a wireless communication module, wherein the acquisition module is used for acquiring an audio signal; the signal processing module is connected with the acquisition module and used for processing the audio signal; and the wireless communication module is connected with the signal processing module and is used for realizing wireless communication with target audio receiving equipment. The device can work independently, does not need to be directly connected with target audio receiving equipment, and performs wireless communication through the wireless communication module, so that the flexibility and portability of the pickup device are improved, the pickup coverage range is expanded, the pickup blind area is reduced, the arrangement is convenient, and voice recognition and voice control failures caused by pickup failures or pickup errors are avoided.