102results about How to "Solve signal interference" patented technology

The invention discloses an intelligent remote control key entry method and a device of an automobile. The device comprises an automobile key transmitting part and an automobile key receiving part, the automobile key transmitting part combines the a transmitting frequency band, transmitting power and transmission coding data into radio-frequency signals numbering N of different frequency bands, and a power amplifier and a radio-frequency antenna are used for transmitting the radio-frequency signals; the receiving part receives data transmitted by the automobile key transmitting part; after receiving frequency is determined, whether the receiving frequency is effective data is judged, interference information data is filtered, and information data conforming to requirements is stored in an FIFO memory; and data is decryption and matching operation are carried out on the data, then an automobile door is opened / closed according to the information code content. The invention adopts microprocessor control, digital phase-locked frequency selection and a multiband communication technology, solves the problem of signal interference caused by communication at single frequency band in the common PKE system by utilizing multiband radio-frequency signal reorganization and a data frame structure format so as to avoid the interference phenomena among multiple keys of the same automobile type. The invention has the characteristics of simple structure, small volume, low power consumption, high sensitivity and the like.

The invention discloses a method, device and system for obtaining antenna adjustment parameters. The method includes: reading an intensity value of communication signals sent and received between a base station and a repeater; acquiring a current position coordinate and attitude data of an antenna; performing a fitting operation according to the intensity value of the communication signals and the current position coordinate and attitude data of the antenna so as to obtain quality distribution data of the communication signals; and extracting one or more antenna adjustment parameters, which are larger than or equal to a set threshold, from the quality distribution data of the communication signal, wherein the antenna adjustment parameters include a target position coordinate and target attitude data of the antenna. Through the method, device and system for obtaining the antenna adjustment parameters, improvement of call quality in a mobile communication system can be realized and at the same time, performance demands on the base station or a mobile terminal are reduced so that the utilization rate of signal resources is improved and an effect that signal interferences are prevented is achieved.

The embodiment of the invention provides a mobile base station application-based communication system, a mobile base station application-based device and a mobile base station application-based method. The communication system comprises a base station location registration management module BLR, wherein the BLR is in communication connection with a mobile switching centre MSC and is used for acquiring and storing related information on a mobile base station and a fixed base station, recognizing a neighbor relationship between the base stations according to the related information, calculating the distance between the mobile base station and the fixed base station and adjusting the transmission power of the mobile base station according to the distance. The embodiment of the invention can solve the problem of the interference between the mobile base station and the fixed base station.

The invention discloses an embedded touch display screen and a touch display system. The embedded touch display screen comprises a display light source for displaying in a display area, wherein the display area is provided with touch control areas which are arranged in a matrix form, touch control scanning lines corresponding to all lines of touch control areas, and touch control reading lines corresponding to the touch control areas one by one; each touch control area comprises at least one touch control module; the touch control modules comprise light-sensing units and touch control reading units; when the light-sensing units receive light, touch control signals are generated and supplied to the touch control reading units; when the touch control reading units are switched on under the control of the touch control scanning lines, touch control signals are output to the touch control reading lines by the touch control reading units; light received by the light-sensing units is light of a display light source reflected onto the light-sensing units by a touch-control body when the touch control body gets close to the touch display screen; the presence of touch control is determined through judgment of the magnitudes of signals on the touch-control reading lines, so that an optical sensing touch control function is realized; compared with a capacitive sensing touch control screen, the embedded touch display screen and the touch display system have the advantages that the problems of signal interference and signal delay are solved in the case of a large size.

The invention discloses a digitally driven semiconductor display device which at least comprises a silicon substrate, and micro light emitting diodes that are manufactured on the silicon substrate and are arranged in an array. Furthermore each micro light emitting diode at least comprises a first electrode, a plurality of non-organic compound layers and a second electrode. The pixel circuit at least comprises a binary-value storage unit and a driving transistor. The driving transistor is an N-type or P-type metal-oxide semiconductor field effect transistor and only works in an on state or an off state. One end of the micro light emitting diode is connected with the source electrode or drain electrode of the driving transistor, and the other end is connected with a power supply, ground or a negative power supply. The light emitting brightness of the micro light emitting diode is in direct ratio with on time of the driving transistor in unit time. The gray scale generating mode of a display device is digital pulse width modulation. The digital pulse width modulation manner is subfield or subspace. The binary-value storage unit is arranged in a first voltage region, and the driving transistor is arranged in a second voltage region.

The invention discloses a dielectric loss Tan delta test method and tester. The test method comprises the steps of: first, current and voltage signal collection: detecting the work current and work voltage of an electrical device to be tested in real time, and collecting data through a signal collection circuit; and second, signal processing: processing current values and voltage values collected at each sampling time according to a sampling sequence, wherein the current value and voltage value processing comprises the steps of: 201, signal receiving and synchronous storage; and 202: calculation of dielectric loss Tan delta at a current time: data group creation and analysis and processing of signals of a next sampling time. The tester comprises a current detection unit, a voltage detection unit, a signal collection circuit and a data processor. The test method has the characteristics of reasonable design, easy realization, sound use effect, great instantaneity and high test precision, and can conveniently and rapidly test the dielectric loss Tan delta of an electrical device to be tested.

The invention provides in-cell touch display panels. One of the panels includes a plurality of sub-pixel-electrodes, a plurality of touch electrodes, a plurality of touch sensing conducting pads, a plurality of contact holes, a wire concentration area, a plurality of data signal conducting pads, a plurality of touch sensing signal wires and a plurality of data wires. The sub-pixel-electrodes and the touch electrodes are disposed in a touch display area. Each touch electrode corresponds to a plurality of the sub-pixel-electrodes. The touch sensing conducting pads and the data signal conductingpads are disposed in a chip area. The data signal conducting pads and the touch sensing conducting pads are arranged in a crisscrossing manner along a reference straight-line. The wire concentration area is located between the touch display area and the chip area. The touch sensing signal wires are electrically connected with the touch electrodes through the contact holes, and electrically connected with the touch sensing conducting pads correspondingly via the wire concentration area. The data wires are electrically connected with the sub-pixel-electrodes, and electrically connected with thedata signal conducting pads correspondingly via the wire concentration area. The touch sensing signal wires and the data wires crisscross in the wire concentration area, and do not mutually overlap.

The invention discloses a bi-module terminal antenna, comprising main antennas, secondary antennas and an antenna bracket; the main antenna is formed by a main antenna with a first system and a main antenna with a second system, the secondary antenna is formed by a secondary antenna with the first system and a secondary antenna with the second system, the main antennas and the secondary antennas are fixed on the same antenna bracket, and reeds are respectively arranged on the main antennas and the secondary antennas; when the antenna bracket is buckled on a main board, four reeds of the main and secondary antenna are respectively contacted with four antenna feed points on the main board; an LC resonance circuit is arranged in front of each antenna feed point, four LC resonance circuits respectively works in working frequency ranges of the connected antennas corresponding to the antenna feed points. The invention further discloses a signal processing method, signal high resistance at different frequency ranges is carried out by the LC resonance circuits, so as to solve the signal disturbance and lost problems in the prior art under a condition that the antenna is in a receiving mode; in addition, the bi-module terminal antenna in the invention simplifies the layout of a printed-circuit board (PCB).

The embodiment of the invention provides a signal transceiving device and electronic equipment, which are applied to the technical field of communication and are used for solving the problem that signal interference exists in a common antenna in the existing terminal equipment. The signal transceiving device comprises a first transceiving module, a second transceiving module, a first antenna, a loop device and a signal processing module, the signal processing module is used for splitting the first signal sent to the signal processing module by the first receiving and sending module into two paths of first signals, sending the first path of first signals to the loop device, obtaining and adjusting interference signals in the second path of first signals, and sending the adjusted interference signals to the input end of the second receiving and sending module; the loop device is used for sending the second signal to the second transceiver module; wherein the second signal comprises a first target signal received by the first antenna and an interference signal in the first path of first signal, the interference signal can be cancelled with the adjusted interference signal in the transmission channel, and the second transceiver module is used for receiving the first target signal.

The invention discloses an OFDMA technology based visible light indoor positioning method. The method comprises steps that sending ends of three LED lamps are distributed with three ID signals respectively, an OFDM modulation module carries out OFDM modulation on the three ID signals in the same modulation index, and three modulated ID signals are transmitted in sub-channels orthogonal with one another. After being received by each mobile terminal, the signals are amplified and undergo noise filtering by the reception circuit and then are then input to an OFDM demodulation module, and the OFDMdemodulation module obtains the ID signals sent by the three LED lamps by demodulation. According to received ID information of optical signals of the LED lamps and attenuation of the signals, the mobile terminals can be located accurately via a triangular positioning algorithm. Visible light communication is used, application for the frequency spectrum is not needed in the visible light band, and a present commercial LED lamp light source is used to satisfy illumination as well as positioning and communication. The method also has the advantages of low hardware cost, high positioning precision, free of electromagnetic radiation, green and safe.

The invention relates to a method for producing an infrared signal of a sending terminal of an infrared ray corresponding emission device, and the sending terminal of the infrared ray corresponding emission device comprises an infrared pulse signal generating module and an infrared emission module. The infrared ray corresponding emission device is characterized in that the sending terminal is provided with only address information and also comprises a parameter detection module used for detecting status messages of the sending terminal, and generates the infrared signal according to the following steps: (1) first, an aequilate primary high-frequency pulse signal is generated; (2) pulse amplitude modulation is carried out on the primary high-frequency pulse signal to generate a secondary pulse signal; (3) the status messages and the address information are loaded onto the secondary pulse signal by adopting a way of pulse phase modulation, so that a third pulse signal is obtained; (4) the generated third pulse signal is transmitted to the infrared emission module and then sent to a receiving terminal. Compared with the prior art, the mutual interference of signals among sending terminals and receiving terminals of a plurality of infrared ray corresponding emission device can be avoided by the method.

The invention relates to a portable safety instrument for miners and belongs to the field of information and automation. The instrument comprises a microprocessor, a storage circuit, a data acquisition circuit, a speech coding circuit, a wireless radio frequency module, a battery, a wireless signal repeater, earphones, a wireless video transmission module, a power supply module, a warning circuit, a serial port circuit, a keyboard circuit and a display module. The portable safety instrument is a device which can be used for learning about information on surrounding environment of a miner and realizing voice and video communication with a working field. The system of the device adopts the wireless radio frequency module to realize data transmission in a repeater mode. The safety instrument provides a good solution to problems of monitoring people, early warning and rescuing in mines, tunnels and other isolated environments. The safety instrument has the characteristics of low cost, low consumption, high performance, portability and so on, and can be used as a common portable safety instrument for miners.

The invention discloses a lightweight WLAN small-size wireless network networking method, and the method comprises the following steps: S1, an AP discovers a device providing an AP configuration service of an intranet through a zeroconf / mDNS technology; S2, before the AP service is started, a user chooses to upload information configured before through WEB or select system default configuration information; S3, the AP obtains an AP device list in a local area network through looking up by a zeroconf technology, and simultaneously acquires related information of the step S1; S4, the AP logins to a WEB interaction page provided by a certain AP in the network, and sends a result of inquirey of the step S3 to a webpage client side through a CGI mode; S5, the user configures SSID, WIFI encryption modes, password information and information of a domain of the AP for the AP through the WEB; S6, the user selects one online AP, issues the configuration to the AP and sends BSSID lists of all theAPs of the current domain to the connected AP. The method provided by the invention realizes a gapless roaming function between the APs through a 802.11r technology and realizes a freely telescopic networking method.

The invention provides an ultrasonic distance measuring device taking automatic parking searching and rear blind area monitoring of a vehicle into consideration and a method thereof. The device includes a control unit, a stepping motor, an ultrasonic radar and an acousto-optic prompting unit. In a parking searching mode, the control unit drives the stepping motor to rotate the ultrasonic radar toa parking searching position, and a radar detection angle is set to calculate the distance of a side obstacle; in a blind area monitoring mode, the control unit drives the stepping motor to rotate theultrasonic radar to a blind area monitoring position, the radar detection angle is set to calculate the distance of an obstacle in a blind area, and when the measured distance of the obstacle is lessthan a preset value, a buzzer and a displayer are driven to make a prompt. The single ultrasonic radar is utilized to complete environment perception tasks in different areas, the stepping motor is utilized to drive the ultrasonic radar to rotate the change the beam axis of the ultrasonic radar to enable the single ultrasonic radar to detect different areas, and the automatic parking searching and rear blind area monitoring of the vehicle can be taken into consideration.

The invention relates to a method for improving the remote activation of an automotive vehicle by determining the frequency of an activation signal based on sampled ambient noise conditions. The selected frequency can be transmitted to a passive remote control device in a challenge signal. The remote control device responds with an activation signal at the selected frequency.

The embodiment of the invention provides a data transmission method, electronic equipment and network side equipment, which relate to the technical field of communication, and are used for solving theproblem of same-frequency interference between a 4G signal and a 5G signal in double-SIM-card electronic equipment in the prior art. The method comprises the following steps: the electronic equipmentaccesses a first network through the first SIM card and accesses a second network through the second SIM card; and the electronic equipment alternately switches the first SIM card and the second SIMcard to transmit and receive data under the condition that the first frequency band of the first network and the second frequency band of the second network are overlapped.

The invention discloses an image transmission method and device for a small airborne photoelectric pod. The method comprises the following steps: an internal signal plate acquires infrared and visible light image signals of a Cameral link interface, performs protocol conversion of the image signals, and then sends the image signals to an internet access; an external signal plate receives the image signals transmitted by the internet access, converts the image signals into optical signals, and then sends the optical signals to an optical fibre slip ring; and a photoelectric conversion plate receives the optical signals transmitted by the optical fibre slip ring, converts the optical signals into Cameral link image signals, and then transmits the Cameral link image signals to the outside of the small airborne photoelectric pod. With the help of the technical scheme in the invention, the problems of too-much transmission cables and signal interference in the transmission process in the image signal transmission method in the prior art can be solved; the image signal transmission in the pod can be realized; and the installation space of the photoelectric pod can be reduced.

The invention provides foldable terminal equipment. The foldable terminal equipment comprises a first feed power supply, a foldable first part and a foldable second part; the first part is provided with a first antenna unit, a second antenna unit, a third antenna unit, a fourth antenna unit and a fifth antenna unit; the second part is provided with a second antenna unit, and the second antenna unit is coupled with the first antenna unit for feeding when the foldable terminal equipment is folded, wherein the working frequency band of the second antenna unit comprises the working frequency bandof the first antenna unit. The invention provides the foldable terminal equipment, and aims to provide the foldable terminal equipment which is simple in structure and has high antenna performance.

The invention relates to an equipment cloud monitoring management system. The equipment cloud monitoring management system includes a plurality of equipment detection terminals, a plurality of management platforms and a cloud, wherein each equipment detection terminal is used for acquiring various equipment data through a sensor based on an intelligent acquisition circuit and then transmitting thedata to the corresponding management platform through a communication interface; the management platforms are used for counting and analyzing various equipment data received from the detection terminals, and are connected with the cloud through a WebService or HTTP+JSON mode, so as to access and use any equipment accessing the network and realize remote query, monitoring, maintenance and controlof the equipment for the user; each detection terminal utilizes a singlechip as a control chip, thus not only satisfying the requirement for health management detection of the equipment, but also being able to directly realize communication with the cloud on the singlechip without an operation system through the WebService or HTTP+JSON mode; and the equipment cloud monitoring management system cananalyze the signal communication protocol of various equipment, can realize effective acquisition of various equipment data, and has the advantages of high compatibility, wide application range and accurate monitoring.

The embodiment of the invention discloses an antenna adjustment method and device and a computer storage medium, the method is applied to a mobile terminal at least comprising a first antenna and a second antenna, and network parameters of the mobile terminal in a communication process are acquired in real time; wherein the network parameters at least comprise a working frequency band of a first antenna and a working frequency band of a second antenna; a working scene of the mobile terminal is determined according to the network parameters; if the determined working scene is that the mobile terminal works in a frequency band concurrent mode, the antenna efficiency of the first antenna at a harmonic interference frequency point is reduced, wherein the harmonic interference frequency point is obtained according to the interference of the first antenna to the second antenna, and a frequency band concurrent mode exists between the working frequency band of the first antenna and the workingfrequency band of the second antenna; therefore, the problem of signal interference caused by a frequency band concurrent mode can be effectively solved, and meanwhile, the antenna performance is also improved.

The present invention relates to a fiber bragg grating temperature measurement system of a communication machine room, and a communication machine room temperature detection method. The system comprises a broadband light source emitter, at least one optical fiber, at least one fiber bragg grating sensor arranged on the at least one optical fiber and a fiber grating processor. The broadband light source emitter is configured to emit a broadband light source to the at least one optical fiber; the at least one fiber Bragg grating sensor is suitable for being installed at temperature collection points in the communication machine room and is configured to perform reflection of the broadband light source propagated by the at least one optical fiber; and the fiber grating processor is configuredto determine the temperatures of positions where the at least one fiber bragg grating sensor is located according to the wavelength of the reflection optical waves of the at least one fiber bragg grating sensor. The fiber bragg grating temperature measurement system of the communication machine room, and the communication machine room temperature detection method have no detection blind areas, are good in timeliness, save manpower, reduce or avoid cabinet device electromagnetic interference in the communication machine room, and is high in accuracy.

The invention belongs to the technical field of measuring devices for sensing and collecting information such as breathing, heartbeat and body movement of human body in space, and discloses a biological radar, a system and a method and application for non-contact detection of life information, and a miniature integrated biological radar in a sensor, which is used for sensing and collecting breathing and heartbeat information of human body in space in a non-contact manner and converting the sensed information into corresponding electric signals; a life information extraction and breathing and heartbeat signal separation module is used for extracting mixed life information from mixed signals output by the miniature integrated biological radar, separating breathing and heartbeat signals fromthe extracted mixed life information and outputting the breathing and heartbeat signals; and a power supply module is used for providing power supply with appropriate performance. According to the invention, human breathing, heartbeat and body movement information in space are detected in a non-contact mode, and a life information remote real-time monitoring / detecting and early warning system canbe formed by combining the existing Internet of Things technology and equipment.

The invention relates to a phased array ultrasonic detection method for welding a buoy bottom plate and a sampan. The method is based on phased array ultrasonic angle gain compensation ACG and time gain compensation TCG. Sensitivity is set by utilizing an artificial transverse hole in a welding seam. An optimal scanning mode is determined through acoustic beam coverage simulation, detection is carried out in a vertical incident fan scanning mode and an oblique incident fan scanning mode, defects are visually displayed, quantified and accurately positioned, the key technical problem of internaldefect detection of the fillet weld of the bottom plate and the sampan is solved, and the detection sensitivity is not lower than phi 1 * 10 mm<-10>dB.

The invention discloses an underwater acoustic signal modulation and processing method for underwater robot positioning. Spread spectrum techniques are adopted, exclusive-OR operation is carried out on the communication information and the spreading code data; the carrier signal is modulated; the problems of resource waste and signal interference caused by the fact that one underwater robot uses two acoustic systems of underwater acoustic positioning and underwater acoustic communication can be solved; meanwhile, the underwater robot can be ensured to receive acoustic signals passively all thetime, under the mode, due to the fact that the question and answer mode between the system and a user is avoided, the number of the underwater robots contained in the system has no upper limit theoretically, and theoretical support and engineering application guarantee are provided for cooperative operation of the underwater robots which develop rapidly nowadays.

The invention discloses a test method, a test device and a test system. A controller is matched with a signal generator for testing. The controller respectively receives a plurality of test requests of a plurality of devices to be tested. The controller selects one of a plurality of test frequencies and a plurality of signal intensities included in the test request as a test item, generates notification information based on the test item, and broadcasts the notification information to the to-be-tested device, so that the to-be-tested device including the test request of the test item is subjected to frequency locking. The controller drives the signal generator to generate a test signal corresponding to a test item and transmits the test signal to the to-be-tested device.

The invention belongs to the technical field of intelligent device control, and provides a remote control method, a remote control system and a remote control device for a dual-system device and a readable storage medium. The method comprises the steps that a first operating system of a controlled device receives a remote control instruction forwarded by a cloud platform and sent by a control device; the first operating system responds to the remote control instruction and sends the remote control instruction to a second operating system of the controlled equipment; and the second operating system responds to the remote control instruction and executes a control request corresponding to the remote control instruction. In the technical scheme, the remote control instruction of the control equipment is forwarded by the cloud platform, so that the safety of the controlled equipment is improved. Meanwhile, only the first operating system of the controlled equipment communicates with the cloud platform to receive the remote control instruction, and the second operating system does not need to configure a corresponding radio frequency module, so that the equipment cost and the power consumption are reduced. In addition, the cloud platform only needs to send a remote control instruction once, so that the control efficiency is improved.

Disclosed are an electric automobile charging recognizing device and method. The device comprises a storage chip, chip reading equipment and a charging control module, wherein the storage chip is arranged in a socket of an electric automobile and is used for storing a unique identification code of the automobile; the chip reading equipment is arranged in an off-board charger and is connected witha power supplying socket of the off-board charger; the charging control module is arranged in the off-board charger and is connected with the chip reading equipment and the power supplying socket of the off-board charger; and when the socket of the automobile is connected with the power supplying socket through a charging connecting wire, the chip reading equipment is in wired connection with thestorage chip. according to the electric automobile charging recognizing device, the chip reading equipment of the off-board charger can be in wired connection with the storage chip of the electric automobile, the problem of signal interference in a surrounding environment in the prior art can be solved, automatic recognition of the electric automobile and the off-board charger is reliable, the success rate is high, and the electric automobile charging recognizing device and method can be widely applied to complicated environments such as electromagnetic environments.

The invention discloses an LVDS / V-by-one signal test fixture for a core main board. The test fixture comprises a rack for installing a core main board. In addition, the test fixture also includes testpins, a signal switching assembly and a signal connecting line connected with the signal switching assembly. The signal switching assembly is used for outputting an LVDS / V-by-one signal, measured bythe test pin, of the core main board to the signal connecting line and includes a switching base; pin holes matching and corresponding to the test pins are formed in the switching base; one end of each test pine is in butt joint with an LVDS / V-by-one signal testing point arranged on the core main board and the other end of the test pin is inserted into one pin hole. The LVDS / V-by-one signal test fixture has advantages of good anti-interference performance and high test efficiency.

The invention discloses an anti-jamming system for a low-altitude logistics UAV, which is characterized in that: it includes a logistics UAV and a ground station; the ground station includes a signal transceiver device; the logistics UAV includes a body and a control system; The control system includes a navigation system, a flight control system and a signal transceiver system two; a signal detection device is installed on the transceiver system. The low-altitude logistics drone anti-interference system of the present invention detects the interference signal by performing multiple detections on the received signal, and at the same time starts the standby signal frequency after the interference, replaces the signal frequency, and connects the signal, thereby maintaining the normal operation of the low-altitude logistics drone communication.