31results about How to "Reliable wireless communication" patented technology

An illumination apparatus is used in the light communication system. The apparatus receives electricity from a commercial alternating-current power source and a light-emitting element in the apparatus emits light. The zero passage time of commercial alternating-current power source is detected and signals are transmitted from illumination apparatus, or intercommunications between terminals of communication equipment take place, during a specific reserved time that is in synchronization with this zero passage time.

A polar-loop wireless communication apparatus includes, on a forward path between an amplitude detector and a power amplifier which constitute an amplitude control loop, a variable gain amplifier and a switch to change characteristics of a loop filter to output a frequency bandwidth of the amplitude control loop to an order less than an order for normal operation. The system is operated with the characteristics set to the lower order to measure outputs from the power amplifier to calibrate the output power of the power transmitter, and the register is operated with the characteristics set to the higher order to measure the open loop gain of the amplitude control. According to results of the calculation, data to correct gain characteristics of the variable gain amplifier with respect to an output control signal is stored in a nonvolatile memory of a baseband circuit.

The invention discloses a portable remote real-time monitor with first-aid and locating function in the medical equipment technological domain, which comprises the following parts: inserted main control mode, physiological parameter gathering mode, position locating mode, human-machine interacting mode, wireless communicating mode, electric defibrillation first-aid mode, antenna, battery and small-arms sling, wherein the main control mode coordinates the monitoring information, which is transmitted to the executing remote monitoring center.

The invention discloses an intelligent control method for emergency braking based on Internet of Vehicles, which comprises the following steps: the vehicle obtains CAN bus information, and sends out emergency braking information when emergency braking occurs; after the vehicle receives the emergency braking information, it judges whether the two vehicles are driving Direction correlation and the front-to-back position relationship of the two vehicles; if the two vehicles are related and the self-vehicle is behind the adjacent vehicle that sends the emergency braking message, calculate the actual distance dis between the two vehicles, and the collision reaction distance RD; if RD

The present invention is applicable to the field of smart wearable devices, and provides a smart watch, which includes a hollow casing and a movement assembly arranged in the casing, a display screen is arranged on the casing, and the two sides of the casing A first watch strap and a second watch strap for wearing are rotatably connected, the movement assembly includes a battery and a circuit board electrically connected to the battery, and a device capable of carrying out A metal frame for wireless communication, the circuit board is provided with a first feed terminal and a ground terminal, and the metal frame is respectively connected to the first feed terminal and the ground terminal through a first conductive connector and a second conductive connector. The ground terminal is electrically connected. The smart watch provided by the present invention not only has a strong metal texture and a firm structure, but also does not interfere with communication signals, improves the quality of communication signals, and ensures the reliability of the smart watch.

A communication method and device, and a readable storage medium, the communication method comprising: establishing a communication connection with a data source device; establishing a second wired connection with other devices; exchanging their respective data with the other devices through the second wired connection identification information, so that the other device receives the communication data sent by the data source device according to the received identification information. By adopting the above solution, multi-device communication can be performed quickly and reliably.

The invention discloses a multi-control type wireless sensing auto-alarm electronic float. The main applying principle of the existing electronic fishing float is that a conducting material is sticked on the surface of the tail of the float, and the principle that water can conduct electricity to judge the electric conduction position of the tail of the float, thus misdeclaration and failure to declaration caused by factors such as liquid residual, interference of electromagnetic wave and the like can occur after the tail of the float is used for a period of time. The components of the multi-control type wireless sensing auto-alarm electronic float comprises an alarm, wherein the alarm is in communication connection connected with the float body through a wireless spread spectrum communication mode; the float body comprises an upper float body (1), the upper float body is connected with a lower float body (3) through a connector (2); the upper float body comprises an upper shell (4), the upper shell is internally provided with an inner circuit board (5) of the float body; the inner circuit board of the float body is installed on an antenna (6) which is at the upper part of the upper shell body; the lower float body comprises a lower shell body (7), the lower shell body is connected with a float foot (8), and the lower shell body is provided with a battery (9) internally. The product is a fishing float carrying an auto-alarm signal device.

A card reader to read information in an integrated circuit (IC) card includes a housing, a first antenna, a control circuit, a switch unit, and a third antenna. The first antenna is disposed inside of the housing. The control circuit is to communicate with the IC card within a communication range of the first antenna and perform at least a process that acquires data from a memory in the IC card. The switch unit is provided to the housing and includes a radio frequency (RF) tag that includes a second antenna. The third antenna is disposed inside of the housing. The switch unit functions as a switch that performs a predetermined function by causing the RF tag to communicate with the control circuit via the second antenna and the third antenna when a predetermined condition is satisfied.

The printing machine is a printing machine having a wireless communication function, and includes an antenna (321f) on a front surface (110f) of a casing (110) having a Space for space requires part of the surface. The space requiring parts are a paper delivery slot (120f) for replacing paper and a paper storage part cover (130f).

A wireless communication device that has a circuit board, an RF signal module, a capacitive touch-sensing component, or a functional component, and an antenna component is provided. The touch-sensing signal module is disposed on the circuit board. The capacitive touch-sensing component includes a sensing layer and a ground layer. The sensing layer is electrically connected to the touch-sensing signal module. The antenna component includes a feed point and a radiating body. The feed point is disposed on the ground layer and is electrically connected to the RF single module. The radiating body incorporates at least parts of the ground layer. Alternatively, the feed point is disposed on the sensing layer, and the radiating body incorporates at least parts of the sensing layer. Therefore, the radiating body is incorporated into the sensing layer or ground layer of the capacitive touch-sensing component and can save accommodating space.