Please select the most similar patent number from A, B, C and D. Which number is?
Disclosed in the present application is a remote control, comprising: an infrared-emitting diode that emits an infrared signal; a microwave signal-emitting antenna that emits a microwave signal; a microwave-generating circuit that modulates the microwave signal; a control circuit; a button that responds to the touch of a user and converts the touch into an electrical signal; and a printed substrate, wherein the infrared-emitting diode, the microwave signal-emitting antenna, the microwave-generating circuit, the control circuit and the button are all provided on the printed substrate.
A: A scanning control method, a millimeter wave radar, a movable platform, and a storage medium, wherein the method is applied to the millimeter wave radar, the millimeter wave radar comprises a first transmit antenna (11), a second transmit antenna (12), and a radio frequency (RF) front-end circuit (13) electrically connected to the first transmit antenna (11) and the second transmit antenna (12), the method comprises: controlling the RF front-end circuit (13) to drive the first transmit antenna (11) so that the first transmit antenna (11) emits a first microwave signal; and controlling the RF front-end circuit (13) to drive the second transmit antenna (12) so that the second transmit antenna (12) transmits a second microwave signal, wherein the distance and width range detected by the first microwave are different from the distance and width range detected by the second microwave signal. Coverage of different detection distances and width ranges is achieved in a set of radar system, thereby reducing the design cost of the radar system and optimizing the performance of the radar system.
B: An infrared emission structure (11), infrared remote control, and infrared remote control method. The infrared emission structure (11) comprises: multiple infrared emitters (111), located in multiple positions of an infrared remote control and configured to cyclically emit an infrared code according to a preset sequence; a controller (112), provided inside the infrared remote control, connected to the multiple infrared emitters (111), and configured to control the multiple infrared emitters (111) to cyclically emit the infrared code; and a feedback module (113), connected to the controller (112), and configured to acquire control feedback information from a controlled apparatus of the infrared remote control and send the control feedback information to the controller (112), such that the controller (112) controls the multiple infrared emitters (111) to stop cyclical emission of the infrared code according to the control feedback information. The above technical solution achieves multi-directional operation control of an infrared remote control, reduces instantaneous power of code emission of the infrared remote control, reduces energy consumption, avoids repeated responses of electrical equipment when repeatedly receiving control information, and increases utility of the infrared remote control.
C: Disclosed are a microwave radar (10, 202, 60, 702) and an unmanned aerial vehicle (20, 70) having the microwave radar (10, 202, 60, 702). The microwave radar (10, 202, 60, 702) comprises: an antenna device (102, 222, 602, 722) for transmitting a microwave transmitting signal and/or acquiring a received signal, wherein the microwave transmitting signal and the received signal are both of a trapezoidal modulation waveform, and one period of the trapezoidal modulation waveform comprises a frequency rising section, a frequency falling section and a fixed frequency section; and a radar controller (104, 224, 604, 724) in communication connection with the antenna device (102, 222, 602, 722), wherein the antenna device (102, 222, 602, 722) sends an intermediate-frequency signal to the radar controller (104, 224, 604, 724) that is obtained by carrying out frequency mixing on the frequency of the microwave transmitting signal and that of the received signal, and the radar controller (104, 224, 604, 724) determines whether the received signal is an interference signal according to the intermediate-frequency signal. According to the microwave radar (10, 202, 60, 702), there is no need to artificially and strictly control the time when each microwave radar transmits a signal, so that the implementation is simpler and more convenient, and an application range is wider.
D: An electronic atomizing apparatus and a microwave control method therefor. The electronic atomizing apparatus comprises: an atomizing cavity used for accommodating an aerosol generating substrate; a microwave generating circuit used for generating a microwave according to a preset microwave frequency; a microwave transmitting antenna used for transmitting the microwave; a feedback collecting circuit used for collecting a feedback signal corresponding to the microwave of the preset microwave frequency transmitted by the microwave transmitting antenna; and a microwave control circuit, which is connected respectively to the microwave generating circuit and to the feedback collecting circuit. The microwave control circuit is used for determining the preset microwave frequency, and controlling the microwave generating circuit to generate the microwave according to the preset microwave frequency. The microwave control circuit chooses, on the basis of the feedback signal, to maintain the microwave transmission frequency or to correct the preset microwave frequency. The microwave is used for directly heating the aerosol generating substrate, and the microwave transmission frequency is adjusted by means of a frequency sweep, the heating efficiency is high, and the service life of a device is extended.
Answer: B