75results about How to "No signal interference" patented technology

The present invention belongs to the display technological field and relates to a thin film encapsulation structure, a display device, and a preparation method of the display device. The thin film encapsulation structure provided by the invention comprises a thin film encapsulation layer and electromagnetic shielding layers; the electromagnetic shielding layers are located in the thin film encapsulation layer; each electromagnetic shielding layer comprises a wire mesh formed by metal material; and the electromagnetic shielding layers isolate two side surface regions of the thin film encapsulation structure from each other, so that the thin film encapsulation structure has an electromagnetic interference shielding function; inorganic material passivation layers and organic material buffer layers are alternately arranged in the thin film encapsulation layer, and therefore, the thin film encapsulation structure has an excellent water and oxygen barrier property, the encapsulation effect of the thin film encapsulation structure can be improved, the aging of organic materials can be prevented, and the service life of an OLED device can be prolonged. The invention also provides a displaydevice comprising electromagnetic shielding layers; and the electromagnetic shielding layers isolate an OLED display layer from a touch control layer, and shield signals generated by the cathode of the OLED display layer, and therefore, the interference of the signals generated by the cathode on the signals of the touch control layer can be weakened or eliminated, and touch control performance can be improved.

Embodiments of the present invention disclose a charge-by-household system of air conditioners. The charge-by-household system comprises at least one air-conditioning unit comprising air-conditioning external units and at least one air-conditioning internal unit; an intelligent electric meter used for metering power consumption information of each air-conditioning external unit; and a charging gateway used for calculating electric charge of each air-conditioning external unit according to obtained operation information of the air-conditioning external units and the air-conditioning internal units and the power consumption information of each air-conditioning external unit. According to the charge-by-household system of the air conditioners, the power consumption information of a plurality of air-conditioning external units is metered by using one intelligent electric meter, so that the size of the charge-by-household system is reduced; the intelligent electric meter is directly and electrically connected with the charging gateway, so that bus wiring is simplified, and signal interference among a plurality of buses is prevented; and communication stability and reliability between the charging gateway and the intelligent electric meter are improved, communication fault rates are reduced, and installation cost is correspondingly reduced.

The invention provides an electric connector and a manufacturing method thereof. The electric connector comprises an upper terminal component, a lower terminal component, an earth plate and an outer insulator. The upper terminal component comprises a plurality of upper terminals and upper insulating parts, the upper terminals are in spaced arrangement, and the upper insulating parts are formed on the upper terminals by means of injection molding. The lower terminal component comprises a plurality of lower terminals and lower insulating parts, the lower terminals are in spaced arrangement, and the lower insulating parts are formed on the lower terminals by means of injection molding. The earth plate is clamped between the upper terminal component and the lower terminal component. The outer insulator is formed outside the upper terminal component, the lower terminal component and the earth plate by means of injection molding. Therefore, signal interference between the upper terminals and the lower terminals of the electric connector is avoided, and signal transmission quality is improved. In addition, the manufacturing method of the electric connector includes injection molding for three times, and the manufacturing method is not only simple and low in punching difficulty but also convenient for injection molding.

The object is to provide a tire condition monitoring system in which power consumption upon output of information by the tire side communication device can be reduced as compared with the conventional tire condition monitoring systems. According to the present inventive tire condition monitoring system 10, the tire side communication devices 20 superimpose detection information on the electromagnetic waves, delivering the electromagnetic waves as surface waves of the tire wheel 12 and vehicle body 15. Accordingly the power comsumption in output of information can be reduced as compared with the conventional tire condition monitoring systems. Consequently, the size of the microcell 30 used in the tire side communication device 20 can be downsized and the life of the microcell 30 can be longer. More specifically, the tire condition monitoring system 10 of the embodiment consumes -10 dBm (0.1 mW) at the time of information output although a conventional system consumes 3 dBm (2 mW). Thus, the power consumption in inforrmation output can be reduced to one twentieth of that of the conventional system.

The invention discloses a pumping concrete equipment management control method and a pumping concrete equipment management control device. The method comprises the following steps: step A, a control command for starting pumping concrete equipment is sent to an equipment management server by a remote controller; step B, the equipment management server verifies the control command; step C, the equipment management server sends a self-check command to the pumping concrete equipment when the control command is approved through verification; and step D, the pumping concrete equipment completes corresponding operation under the control of the remote controller if the pumping concrete equipment completes self-check items of the self-check command. By implementing the pumping concrete equipment management control method and the pumping concrete equipment management control device of the invention, each piece of equipment is controlled by one remote controller, signal interference is avoided, and the safety is improved. Moreover, the remote controller is provided with a display screen, so that the working state of the pumping equipment can be displayed in time, operators can know the working state of the pumping equipment in time, and the operability is improved.

The invention discloses a heat radiation structure for an electronic component. The heat radiation structure comprises a shielding shell, two mute fans, a heat conduction rubber layer and a heat conduction metal sheet; a PCB plate is arranged in the shielding shell; the PCB plate is provided with the electronic component; one mute fan is arranged on the top of the shielding shell and the other mute fan is arranged in the position of a diagonal line of the side part of the shielding shell to form air convection; the heat conduction rubber layer is arranged on the top of the electronic component; the heat conduction metal sheet is arranged on the top of the heat conduction rubber layer; a heat conduction groove is formed in the heat conduction metal sheet; and the heat conduction groove is formed by a plurality of metal strips arranged in parallel. By adoption of the structure and due to the setting of the heat conduction groove in the conduction metal sheet, the heat conduction structure is light in weight, large in heat conduction contact area, and rapid in heat conduction; meanwhile, the two mute fans can take away the heat absorbed by the heat conduction metal sheet in the convection manner; and in addition, due to the setting of the shielding shell and the heat conduction rubber layer, the electronic components can be separated mutually in heat conduction without causing signal interference.

The invention discloses a method for characterizing a second phase of ferromagnetic alloy powder. The method comprises the following steps: with foamed nickel or nickel mesh filled with ferromagneticpowder as an anode, separating the second phase of the ferromagnetic alloy powder from a powder matrix through electrolysis to obtain an electrolyte containing the second phase; then, performing magnetic separation, diluting by using absolute ethanol and performing ultrasonic dispersion, then dripping onto an ultra-thin carbon supporting membrane and drying to prepare a TEM detection sample; then,performing structural observation and characterization by using a TEM. By the method, the morphology, the structure, the size and other characteristics of the second phase smaller than 0.5[mu]n, especially the second phase with the size being smaller than 50nm, in the ferromagnetic alloy powder can be characterized; the second phase obtained through separation retains the original structure; themethod is simple and high in efficiency; an electrolysis condition is easy to obtain; the repeatability is strong; the method can applied to analysis and characterization of the second phases of various powdery materials.

The invention provides an indoor wireless coverage transmission system based on DTV-VLC. The system comprises a power supply, a plurality of LED lamps, a PLC coupler, a home multimedia gateway and a DTV signal source, wherein the LED lamps, the PLC coupler and the home multimedia gateway are electrically connected with the power supply; when receiving a broadcast signal of a wired household DTV signal source, the home multimedia gateway decodes at first to obtain DTV program data stream, and then carries out coded modulation and framing according to a DTMB standard again; when receiving a ground DTMB signal, the home multimedia gateway directly forwards the ground DTMB signal through a VLC (visible light communication, Visible Light Communication) channel; finally, downlink signals of the LED lamps are demodulated and decoded by a DTV-VLC receiving terminal unit in a receiving unit; in a wireless coverage transmission process of the DTV-VLC, a TDS-OFDM signal from the home multimedia gateway and acquired by demodulating the DTMB is coupled to a power line by the PLC coupler at first, is transmitted on the power line to drive the LED to transmit a light signal carrying information, and if collected by a light sensor of the receiving terminal at last.

The invention discloses a magnetic type connector. The magnetic type connector comprises an insulating body, a plurality of conductive terminals retained in the insulating body and magnetic elements located at two sides of the plurality of conductive terminals; the insulating body is provided with a butting region arranged at the front end, the plurality of conductive terminals are arranged in thebutting region and comprise contact parts exposed to the butting region; the magnetic type connector further comprises a metal shell arranged at the periphery of the butting region in an enclosing manner and surrounds the conductive terminals; the magnetic elements comprise a first magnetic element and a second magnetic element with opposite magnetic poles located at the two opposite sides of themetal shell; through the first magnetic element and the second magnetic element with the opposite magnetic poles, the magnetic type connector can only be butted in the positive direction, meanwhile,the conductive terminals accommodated in an accommodating space of the metal shell can be prevented from being interfered by external signals.

The invention discloses a signal ranging and positioning method. In the positioning system provided by the invention, given that a plurality of transmitters simultaneously transmit positioning signals for seeking positional information, in order to avoid interference among the positioning signals, a multi-access method is in need of design, which means to use optimal ranging and positioning signals. The method provided by the invention can be used for occupying the widest bandwidth and concentrating energy at two ends of the bandwidth, with the generated signals having the highest distance estimation accuracy; meanwhile, as for the positioning system in which the plurality of transmitters simultaneously transmit signals, the positioning signals of the transmitters are required to have a substantially equal ranging accuracy; and therefore, the optimal positioning and ranging signals (for a mean square bandwidth) occupy almost the entire bandwidth, with neither frequency overlap nor mutual signal interference.

The invention discloses a wireless mouse control system based on ZigBee communication. The system comprises a computer, a ZigBee receiver, and a wireless mouse. The number of the wireless mouse is at least one. The wireless mouse comprises a control module, and a ZigBee sending module which is connected with the control module and is provided with a ceramic patch antenna. The ZigBee receiver comprises a ZigBee receiving module with a ceramic patch antenna, and a USB-to-serial port module. The wireless mouse and the ZigBee receiver realize communication through ZigBee wireless signals. The ZigBee receiver and the computer realize communication through a USB interface on the computer. The system uses ZigBee wireless communication to realize data transmission, and is low in power consumption, large in transmission range, good in anti-interference capability, and high in communication efficiency. The system realizes that one computer can connect with a plurality of mouses for ZigBee communication, operation is more convenient, and signal interference does not exist among the mouses, and the system is stable in signal transmission.

The invention discloses a medium-voltage soft-conductor photoelectric integrated cable comprising a plurality of power units. The power units are covered with a water stop layer, a liner layer, a wire armored layer and an outer sheath layer in order. A plurality of fiber units are disposed in gaps among the power units. Each power unit comprises a soft-conductor wire core which is covered with an inner shield layer, an insulating layer and an outer shield layer in order. Each fiber unit comprises a loose tube accommodating a fiber core, fiber paste and a reinforcing wire, and the loose tube of the fiber unit is covered with an asbestos cloth layer and a silicone layer in order. When the medium-voltage soft-conductor photoelectric integrated cable operates at high temperature for a long time, the interior temperature of the cable can be lower than 60 DEG C, and the transmission performance of the cable is unaffected; in addition, the asbestos cloth and silicone wrapping the fiber units also has the function of enhancing fiber outer support, and the fiber units are protected from crush when the fiber units and the power units are stranded into the cable.