201results about How to "Realize signal transmission" patented technology

The invention discloses an intelligent parking system which comprises a mobile terminal, a background total server, a parking lot terminal server, a gate device and a parking space lock device, a first wireless network transmission device and a second wireless network transmission device. A first wireless transmission module is arranged in the mobile terminal, the background total server comprises a second wireless transmission module, the parking lot terminal server comprises a third wireless transmission module, the gate device comprises a gate control switch and a first wireless sensing device, and the parking space lock device comprises a parking space lock control switch and a second wireless sensing device. The intelligent parking system has functions such as user parking space reservation and parking in a parking space and effectively solves the problems that when a user goes out, a parking space is difficultly found, time is wasted, and parking is troublesome, and car finding and parking time is greatly saved.

The invention discloses a circuit substrate, a manufacturing method thereof, a display substrate and a splicing display device, relates to the technical field of display, and aims to solve the problems that when a glass substrate is adopted for manufacturing Micro LED and mini LED backlight substrates or display substrates, the processability of the glass substrate is poor, and the glass substrateis prone to damage during high-precision punching; and when the Micro LED and mini LED backlight substrates or the display substrates are used for splicing, the conductive connecting parts on the side surfaces of the substrates are easy to wear, resulting in the reduction of the reliability of the product. The circuit substrate comprises a substrate provided with a plurality of grooves in the surface; a driving circuit which is arranged on the substrate base plate and comprises a signal line located on the top surface of the substrate, a signal line lead located on the bottom surface of the substrate and a conductive connecting part, wherein the conductive connecting part is connected with the corresponding signal line lead and the corresponding signal line lead respectively. The circuitsubstrate provided by the invention is used for manufacturing a backboard or a splicing display screen.

The invention discloses a wind tunnel dynamic force measurement test device for a canard configuration rotating missile. The device comprises a tail supporting rod, a test missile model, a steering engine driving mechanism, a force measurement balance, a fixed sleeve, an autorotation driving mechanism and a data acquisition and processing system, wherein the test missile model has a cavity and is provided with a deflectable nose control; the steering engine driving mechanism drives the nose control to deflect, and is arranged in the front of the cavity; the fixed sleeve is arranged in the back of the cavity, the rear end of the fixed sleeve is connected to the front end of the force measurement balance, and the test missile model is rotationally sleeved outside the fixed sleeve; the autorotation driving mechanism is arranged inside the fixed sleeve, and a power output shaft extends out of a front opening of the fixed sleeve and drives the test missile model to rotate; and the data acquisition and processing system is in communication connection to the force measurement balance to receive force measurement data of the force measurement balance. The device realizes autorotation of the canard configuration rotating missile and deflection of the nose control, realizes measurement of aerodynamic force and torque, and is particularly suitable for force measurement test of large length-diameter ratio test missile models in 1.2m sub-trans-supersonic wind tunnels.

The invention relates to an optical fiber rotary connector, which comprises a stator head, a rotor head, a stator shell for fixing the stator head, a rotor sleeve for fixing the rotor head and a rotary connection device. The stator shell is sleeved outside the rotor sleeve; the rotary connection device is arranged between the stator shell and the rotor sleeve; a stator optical fiber is a hot-expanded core optical fiber or conical optical fiber with an end part core diameter of 20-40 mu m; and the rotor optical fiber has the same structure as the stator optical fiber. The optical fiber rotary connector provided by the invention solves the problems that the conventional optical fiber rotary connector has complicated structure, is difficult to install, cannot realize signal transmission of a single-mode optical fiber, and can realize the performance indexes of low cost, simple installation, high coupling efficiency, stable performance and long service life.

The embodiment of the invention discloses a camera assembly, which comprises a time-of-flight module and a circuit board, wherein the circuit board is provided with a reserved space; the time-of-flight module comprises a transmitting module and a receiving module; the transmitting module is configured to transmit a detecting optical signal, and the receiving module is used for receiving a sensingoptical signal formed by the detecting optical signal reflected by a to-be-detected object; the receiving module is located in the reserved space, and the connecting end of the receiving module is fixed on the circuit board; and the transmitting module is located at the periphery of the receiving module and is fixed on the circuit board. The above camera assembly is relatively high in practicability. The embodiment of the invention further discloses electronic equipment applying the camera assembly.

The embodiment of the invention provides electronic equipment which comprises a main body which is of a columnar structure, the main body is provided with a touch area, and the touch area is used forreceiving a touch signal; a touch screen which is connected with the main body, and can be wound and unfolded relative to the main body; And a processor which is used for responding to the touch signal to control the touch screen to be wound or unfolded relative to the main body. According to the embodiment of the invention, the electronic equipment is of a columnar structure, so that the diversity of electronic equipment construction is effectively improved.

The invention discloses an intelligent lighting internet-of-things system, and relates to a lighting system. The system comprises a control center server, a zonal controller, a single-lamp controller and a street lamp, wherein running system management software is installed on the control center server and has database and data storage processing functions; the control center server is connected with the zonal controller through a network; the zonal controller is intelligent equipment which has data collection and communication functions and can be seamlessly connected with the conventional IT (Information Technology) system; the single-lamp controller is used for controlling the street lamp and comprises a power line carrier communication module; and the street lamp is connected to the zonal server through a power line. Through the system, a street lamp power network is effectively managed, electric energy can be saved, and maintenance cost is reduced.

The invention provides a wireless energy transmission system. By means of the fact that simplification design is conducted on a magnetic resonance transmitting module and a magnetic resonance receiving module, the signal transmitting or receiving function and the magnetic resonance function are simultaneously achieved through one antenna structure, and efficient and long-distance energy transmission is achieved by means of optimization design on a metal wire structure of the antenna structure. A metamaterial is fixedly installed at the rear end of the magnetic resonance transmitting module, so that efficiency of energy transmission of the whole wireless energy transmission system is improved. As for the whole wireless energy transmission system, the distance of energy transmission is long, equipment at the receiving end does not need to be attached to the transmitting end, energy transmission can be achieved, the degree of using freedom of the loading equipment at the receiving end is improved greatly, and convenience is brought to users.

The invention discloses a long distance passive liquid level sensor based on distributed fibers, for solving the problem that a current fiber liquid level sensor has low accuracy and low stability. The long distance passive liquid level sensor based on distributed fibers comprises a light source, a comparison circuit, a wavelength division multiplexing device array formed by N wavelength division multiplexing devices, and a fiber array formed by N fibers, wherein pumping arms of the N wavelength division multiplexing devices are connected with the light source; signal arms of the N wavelength division multiplexing devices access the comparison circuit; beam combination arms of the N wavelength division multiplexing devices are correspondingly connected with head ends of the N fibers one to one; tail ends of the N fibers are measuring ends; the vertical distance between the end surfaces of the tail ends of the two adjacent fibers is x, and x is the measuring accuracy to be achieved. The long distance passive liquid level sensor based on distributed fibers can determine the liquid level position according to the abrupt change position of luminous intensity, being similar to digital detection, wherein the measuring accuracy is mainly decided by the distributed spacing of the fibers. Besides, the long distance passive liquid level sensor based on distributed fibers can eliminate the influence of energy shaking of light source and external disturbance on measurement, is slightly influenced by environment, and has high measuring accuracy and high stability.

The invention provides a mobile terminal circuit board and a mobile terminal. The mobile terminal circuit board includes a main circuit board and camerat module group for collecting image information. The camera module group includes a substrate that is arranged above or below the main circuit board in a parallel mode. A first conducting connecting portion is formed at the periphery of the substrate; a second conductive connecting element is arranged at the surface of the main circuit board; and the second conductive connecting element and the first conducting connecting portion are fixed connected, so that the substrate is fixed at the main circuit board and is electrically connected to the main circuit board. According to the invention, with the mobile terminal circuit board, signal transmission between the camera group module and the main circuit board is realized and reliable fixation between the camera group module and the main circuit board is also ensured, wherein the reliable contact even can be ensued under vibration. Moreover, the structure is compact and any other connector is not needed, so that the manufacturing cost is saved.

The invention relates to an intelligent automobile network which is the key to solve the problems of the hollowing automobile design and the hollowing automobile electronic technology; a bus connects a control unit, a sensor, an intelligent instrument and the like in an automobile to form an internal network of the automobile; and the adoption of the automobile network makes the use of an electronic unit on the automobile break through the original limit that not too many electronic units can be added, so that a large number of electronic units are applied on the automobile, the electronic degree of the automobile is quickly improved, and the intelligent degree of the automobile is also improved.

The invention discloses a communication method and a communication system. The communication method is applied at the inside and the outside of a metal shielding space or in a strong electromagnetic interference environment, and comprises the following steps: a first trigger circuit generates a first trigger signal according to a coded signal generated by a coder, wherein the coded signal comprises a first digital signal 0 and a first digital signal 1, and the first trigger signal comprises a first high level signal and a first low level signal; a trigger switch acquires the first trigger signal, and according to the first trigger signal, controls an X ray emitting tube to emit an X ray; a photoelectric detector acquires the X ray, and generates a photoelectric current signal according tothe X ray; a second trigger circuit acquires the photoelectric current signal, and generates a second trigger signal according to the photoelectric current signal; a decoder acquires the second trigger signal and decodes the second trigger signal. With the method and the system provided by the invention, signal transmission and communication at the inside and the outside of the metal shielding space and in the strong electromagnetic interference environment are realized.

The invention discloses a fatigue-crack propagation monitoring system based on a microstrip antenna sensor and a monitoring method thereof, wherein the fatigue-crack propagation monitoring system comprises a microstrip antenna sensor, a wireless inquiry device and a data acquisition and processing device; the microstrip antenna sensor is stuck on a tested testpiece; the wireless inquiry device comprises a signal generation device, an RF (Radio-Frequency) circulator and a horn antenna; the signal generation device is connected with the horn antenna by the RF circulator; the wireless inquiry device sends inquiry signals to a wireless sensor by the horn antenna and receives reflected signals of the antenna sensor; the data acquisition and processing device is connected with the RF circulatorand is used for receiving and processing the signals from the wireless inquiry device and generating the change of the resonance frequency of the antenna sensor and the length and the direction of thecrack propagation in the process of fatigue-crack propagation. The fatigue-crack propagation monitoring system and the monitoring method disclosed by the invention have the advantages that the wireless and online real-time monitoring for the length and the direction of the fatigue-crack propagation can be realized.

The embodiment of the invention provides a two-way transmission interface conversion circuit comprising a first conversion module which comprises a first current-to-voltage conversion circuit, a first voltage-to-current conversion circuit and a first detection circuit. The first current-to-voltage conversion circuit comprises at least one diode. The first voltage-to-current conversion circuit comprises a first switch, a second switch and a first current source. When the first switch is conducted, the second switch is cut off; and when the second switch is conducted, the first switch is cut off. The first detection circuit comprises a first comparator. One input end of the first comparator is connected with a high voltage source of a first voltage domain, and the other input end of the first comparator is connected with a transmission line. With application of the two-way transmission interface conversion circuit provided by the embodiment of the invention, signal transmission between the two voltage domains via the same signal line can be realized by arranging the conversion circuit between current and voltage and the comparator acting as the voltage detection circuit.

The invention discloses a positioning method and device for a ship person, and the method comprises the steps: a, tracking a positioning terminal carried by the ship person through a positioning basestation, and generating positioning information; b, enabling a control unit to determine whether the positioning terminal is located in a first preset region or not according to the positioning information: enabling the control unit to generate first stage positioning information if the positioning terminal is located in the first preset region, and executing step c, or else enabling the control unit to feed back a positioning result, and stopping the tracking; c, enabling the control unit to determine whether the position of a subregion where the positioning terminal is located in the first preset region according to the first stage positioning information. The positioning device comprises the positioning terminal, the positioning base station, a WiFi link, and a control unit. The positioning terminal is carried by the ship person, and comprises a pulse transmitting module in communication connection with the positioning base station.

A signal transmission device for a tire pressure gauge with a gas nipple, the tire pressure gauge including a circuit board on which a signal transmission circuit is installed and an enclosure for containing the circuit board therein. The signal transmission device includes: a tire pressure detection circuit for detection of the pressure value inside the tire and transforming the pressure value into electrical signal; the signal transmission circuit, which is mounted on the circuit board for transforming the electrical signal into signal to be transmitted; a cylindrical coil, one end of which is electrically connected with the signal transmission circuit for receiving the signal to be transmitted and radiating the signal to be transmitted out of the tire, while the other end thereof is electrically connected with the gas nipple to function as an impedance match element so as to transmit the signal out of the tire; and the gas nipple connected with the enclosure of the tire pressure gauge in a universal manner, and transmitting the signal out of the tire.

The present invention discloses an autonomous underwater vehicle and a docking device thereof. The autonomous underwater vehicle is powered by two horizontal propellers and a vertical pusher propeller, the upper portion of the autonomous underwater vehicle is provided with a buoyant material to provide upward buoyant to save energy, the middle portion of the autonomous underwater vehicle is provided with a front sealed cabin and a rear sealed cabin, the front sealed cabin is used for placing a probe and an electronic device for control, the rear sealed cabin is used for placing a power supply, a flow guide cover is arranged on the front end, two trapezoidally-placed support frames are arranged on the lower part. A docking station main body is in the form of a saddle, two slopes are extended from both sides, and an electromagnet is arranged in a docking station. In the application, the autonomous underwater vehicle drives into the docking station from the longitudinal direction, and is guided and limited by the two slopes, and when the autonomous underwater vehicle is stable, the autonomous underwater vehicle can be fixed by the electromagnet to achieve power and data signal transmitting between the autonomous underwater vehicle and a seafloor observatory network. The autonomous underwater vehicle can sustainably work and has a simple structure.

The invention discloses a wireless interphone signal transmission method based on a transfer platform, which comprises the following steps: (1) transmission is carried out with a burst frame as a base unit, wherein each burst frame occupies one carrier frequency; (2) a transmitting terminal transmits signals to the transfer platform and a receiving terminal at the time slot Slot1 of the carrier frequency, and simultaneously the receiving terminal receives the signal directly transmitted by the transmitting terminal; (3) the transfer platform receives signals at the time slot Slot2 of the carrier frequency and forwards the signals at the time slot Slot1 of the carrier frequency; (4) the receiving terminal receives the signals forwarded by the transfer platform at the time slot Slot2 of the carrier frequency and carries out preferential processing on the signals received at the time slot Slot1 and the time slot Slot2, so that a transmission cycle is completed after processing; and (5) next burst frame is started to transmit, and the step (2) is performed until all the signals are transmitted. Through the adoption of the method, the communication distance can be increased, the coverage range is expanded, the communication blind spots are reduced, and co-frequency forwarded signal transmission can be realized.

The invention discloses a vehicle test system, method and transfer device. The system comprises an external device, a vehicle test transfer device and a hardware-in-the-loop test device, wherein the external device is suitable for generating an automatic test control instruction according to received operation and control information for starting automatic test and transmitting the automatic testcontrol instruction to the vehicle test transfer device; the vehicle test transfer device is coupled with an overall to-be-tested controller and the hardware-in-the-loop test device and enables the hardware-in-the-loop test device to be connected with the overall to-be-tested controller according to the received automatic test control instruction; and the hardware-in-the-loop test device is coupled with the vehicle test device for testing the overall to-be-tested controller. By adopting the above scheme, automatic test on the overall electrical appliance functions can be realized.

The invention belongs to the technical field of oil field profile controlling and flooding injection systems, and discloses an integrated profile controlling and flooding injection system. The system comprises a solution stirring tank, a feeding room, a control room, a profile control injection pump, a central control cabinet and a living room, wherein the solution stirring tank is divided into a tank a and a tank b by a baffle; a slurry outlet manifold is arranged at the front end of the solution stirring tank; a slurry inlet manifold and a stirrer are mounted at the top of the solution stirring tank; liquid level sensors are arranged at the front and rear ends of the solution stirring tank; the feeding room is divided into a feeding zone and a storage zone; the control room is divided into a cable room, a power distribution room, a control room and a tool room; the central control cabinet is laid in the power distribution room; a liquid level scale is sprayed on the inner wall of the solution stirring tank; a radio frequency admittance material level switch is mounted at the top of the solution stirring tank; a liquid level gauge is mounted at the bottom of the solution stirring tank. The system has the advantages that all control devices are integrated in an explosive-proof and intrinsically safe control cabinet in the power distribution room of the feeding room, all electrical elements belong to intrinsically safe electrical equipment, the control of all units can be realized within one control cabinet, and equipment is very convenient to operate.

Embodiments of the invention provide electronic equipment and a camera. The electronic equipment comprises a driving motor, a data transmission device, a first component and a second component, wherein the driving motor is arranged between the first component and the second component; the driving motor is used for driving the first component to rotate or driving the second component to rotate; thefirst component is used for transmitting data to the data transmission device, and the second component is used for receiving the data transmitted by the data transmission device; the data transmission device comprises a laser emitter and a laser receiver, a through hole is arranged in the drive motor, and the laser emitter and the laser receiver are arranged in the extending direction of the through hole; and the laser receiver is used for receiving the laser which is emitted by the laser emitter and passes through the through hole in order to achieve data transmission between the first component and the second component.