37results about How to "Implement the conversion function" patented technology

The invention discloses a method, a system and a device for implementing intelligent chatting service in a network of next generation. The method comprises the following steps: an off-line notice is sent to a PAM server after the user is off line; the PAM server sends the notice to an intelligent chatting service server to state that the user is off line; the service server re-registers with the PAM server with the identification of the user and issues that the status information of the user is mobile; instant message sent to the user is sent to the service server; the service server replaces the address of a receiver into a mobile number registered by the off-line user, a call short message interface sends the instant message to an SMS in the manner of short message and the SMS sends the short message including the instant message to a mobile terminal corresponding to the mobile number.

The embodiment of the invention discloses a level switching circuit which comprises two operational amplifiers and a common-mode feedback loop. A substrate and a PMOS source follower which is connected with a source electrode are inserted in a P point of each operational amplifier, so that big difference oscillation amplitude 3.3V high common-mode level is horizontally moved to 1.2V low common mode level with low degree of distortion, and the difference oscillation amplitude is kept unchanged. The common-mode feedback loop receives output signals of the two operational amplifiers, common-mode taking operation is conducted on the two output signals, an obtained common-mode value is compared to a set reference voltage, and the comparison result is used as a feedback signal to be output to the two operational amplifiers. The embodiment of the invention further provides the operational amplifiers and a programmable gain amplifier. According to the level switching circuit, the operational amplifiers and the programmable gain amplifier, the function of switching from low level to high level and the function of switching from the high level to the low level can be achieved at the same time, and the demand for large outputting oscillation amplitude and high linearity is met.

The invention discloses a hybrid protocol-based intelligent power distribution network wireless communication system. The system comprises a terminal node, a power distribution network gateway and a wired network, wherein the terminal node is controlled by an intelligent power distribution network control center; the wired network is connected with a transformer substation; the terminal node is a far terminal unit (FTU) of a power distribution substation; the wired network of the transformer substation communicates with the power distribution network gateway through a wired network or a wireless network; the power distribution network gateway communicates with the terminal node through wireless communication. Self management, self configuration and self optimization functions of the wireless communication system are realized, the wireless communication system supports switching functions among a plurality of wireless protocols, such as zigbee , 802.11, WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronization Code Division Multiple Access), TD-LTE (Time Division-Long Term Evolution) and FDD-LTE (Frequency Division Duplex-Long Term Evolution), supports a hierarchical management function on QoS (quality of service) of services, meets the requirements of remote signaling, remote measurement and remote control of a power distribution network, supports a data fusion function, and reduces redundancy and data transmission amount.

The invention relates to an FPGA (Field Programmable Gate Array)-based full-configuration type Camera link fiber-converting real-time image optical transceiver; the optical transceiver realizes a conversion function from the input of high-bandwidth (85MHz), high-reliability full-configuration type Camera link real-time images into the output of optical fiber real-time images, has a self-adaptive configuration function of inputting full, medium or basic type Camera link real-time images and a self-adaptive function of Camera link input working frequency; the conversion function from the input of the serial port and time sequence control optical fiber data steams to the output of the Camera link interface is realized and the reliability of the remote serial port communication and time sequence control of the Camera link real-time image optical transceiver is improved; the optical transceiver breaks through the technical difficulty of full-configuration type Camera link real-time image fiber conversion; the flexible configuration of the SFP (Small Form Factor Pluggable) fiber module is designed and realized, the transmission distance ranges from 500m to 120km, the anti-electromagnetic interference capability of the Camera link real-time image transmission system is strengthened and the requirements of various engineering application occasions are satisfied.

The invention discloses an extra-large remote sensing image display method based on pyramids and an image rendering engine. Dynamic management on image display is achieved through a pyramid data structure, the geographic position of a display window is used as an input, the dynamic pyramid is used as a first data source which directly provides image data to be rendered for a display engine, the static pyramid is used as a second data source, dynamic pyramid blocks are directly recovered from static pyramid blocks, image files are used as a third data source, image data are read from the corresponding area of the corresponding file according to the requirements of the dynamic pyramid blocks, and conversion is conducted according to display requirements. According to the extra-large remote sensing image display method based on the pyramids and the image rendering engine, the dynamic pyramid and the static pyramid work synergistically, so that time consumption for a large amount of memory IO in the extra-large remote sensing image display process is avoided, and the rapid display is achieved. In addition, display parameters of specific areas are stored, complete image data are stored through static pyramid files, and image fast display based on specific areas in later period is supported.

The invention relates to an optical fiber-to-full configuration type Camera link real-time image optical transceiver based on an FPGA (Field Programmable Gate Array). The optical transceiver realizes the conversion function from optical fiber real-time image input to high-bandwidth (85 MHz) and high-reliability full configuration type Camera link real-time image output, has self-adaptive configuration functions of full configuration type, medium type or base type Camera link real-time image output and also realizes the conversion function from Camera link serial port data and timing synchronous control signal input to optical fiber data stream output, so that the communication distance between a Camera link serial port and a timing synchronous control signal is extended; through the design, the flexible configuration of an SFP optical fiber module is provided, the transmission distance is from 500 meters to 120 kilometers, the stability and the reliability of Camera link real-time image transmission are improved, the anti-electromagnetic interference ability of the Camera link SFP real-time image transmission is enhanced, and the demands on various engineering application occasions are met.

The invention relates to a direct-immersion-type electromagnetic pilot valve, belonging to the technical field of design and manufacturing of ocean oil and gas exploitation equipment. A mode of high-voltage sealing and opening by electromagnetic force is adopted; a direct-immersion-type high-voltage electromagnetic pilot valve for a deep-sea blowout preventer is designed, and is composed of a two-position three-way hydraulic valve, a direct-immersion-type electromagnet and a watertight insertion piece; a moving magnet core is designed by adopting a seal structure formed by a 446SS stainless steel soft magnetic material and the two-position three-way hydraulic valve, the conversion function of the two-position three-way valve of 21MPa under deep water below 2800 meters is realized, and the valve has the characteristics of accurate opening or closing of the two-position three-way valve.

The invention provides a magnetic field detection method based on magnetic dielectric effect, a test device and a working method thereof. The test device comprises a magnetoelectric composite detection structure, the magnetoelectric composite detection structure is formed by laminating spinel ferrite and piezoelectric ceramic, and a to-be-detected alternating magnetic field is captured by a ferrite material and then generates mechanical strain with the same frequency as excitation. And then the mechanical strain is transmitted to a piezoelectric ceramic material through interlayer coupling andfinally output in a capacitance signal mode, detection of an alternating-current magnetic field is achieved, and an impedance analyzer is used for scanning a capacitance spectrum of a magnetoelectriccomposite detection structure to complete measurement of typical sensing parameters such as sensitivity and resolution of a magnetic sensing device. Compared with a traditional electromagnetic sensorinduction detection mode, the method gets rid of the limitation of an external bias magnetic field, improves the detection sensitivity, is not liable to be interfered by an external power frequency signal, the signal-to-noise ratio is higher, and the overall device is more compact.

The invention discloses an extensible multi-channel serial port optical transceiver based on an FPGA (field programmable gate array). According to the optical transceiver disclosed by the invention, functions of converting serial port electrical signal input into optical fiber data flow output and converting optical fiber data flow input into serial port electrical signal output are realized; and functions of converting high-speed (1MHz) extensible serial port channel number simultaneous input with 499 channels being supported into single optical fiber output and converting single optical fiber input into high-speed (1MHz) extensible serial port channel number simultaneous output with 499 channels being supported are realized. Flexile configuration of an SFP optical fiber module is designed and provided, the transmission distance is increased from 500m to 120km, the stability and the reliability of high-speed serial port transmission are improved, an anti-electromagnetic interference ability of high-speed serial port transmission is enhanced, the cost is saved, and requirements of various engineering application occasions are met.

The invention discloses a static sealed rotary switch with a shielding function, comprising a rotating shaft, and a shell and a positioning seat which sleeve the rotating shaft. The positioning seat is buckled onto the lower end of the shell. A pressure spring and steel balls are arranged inside the shell, the pressure spring sleeves the rotating shaft, and the steel balls are disposed at the two ends of the pressure spring. The lower end of the rotating shaft is further connected with a base assembly. The base assembly comprises a base, a rotor and a middle conductive element. The rotor is installed in the center position inside the base, and is connected with the lower end of the rotating shaft. The middle conductive piece is installed on the base through insertion. A plurality of conductive elements are uniformly arranged on the outer side of the rotor inside the base. A moving contact piece is arranged on the rotor, and the moving contact piece is riveted to a contact below the moving contact piece. The center shaft is rotated to drive a change-over mechanism of the switch to move around the axis, so that the multi-circuit switching function of the switch is realized. The switch has good sealing performance, and can shield all kinds of electromagnetic interference effectively.

The invention discloses a high-voltage gain DC-DC direct-current converter which comprises a direct-current power supply, a power switch tube, a three-winding coupling inductor, a capacitor and an output circuit. On or off of the power switch tube is controlled to control switching of working states of the circuit, so that whether the direct-current power supply provides energy required by circuit working for the coupling inductor and the coupling capacitor or not is controlled, input and output voltage gains are changed by changing and controlling the duty ratio of the power switch tube and the turn ratio of the coupling winding, and the output voltage gains are output by the output circuit. According to the invention, by changing the turn ratio of the three-winding coupling inductor, the boost conversion of the output voltage to the DC power supply voltage is realized, the condition of a limit duty ratio can be effectively avoided, and the conversion function of the high output voltage is realized by using a relatively small duty ratio; due to the fact that the structure can effectively reduce voltage stress of devices in the circuit, loss is reduced, and the overall working efficiency of the circuit is improved.

The invention discloses indoor pedal power generation equipment which comprises a trigger module, a transmission module, an execution module and a supporting box, and the trigger module comprises a floor, a telescopic pipe, a non-return ball, a non-return rod, a telescopic cylinder, a return spring, a return spring gasket, a non-return rod support, a non-return spring, a non-return ring, a pressure maintaining cover plate and a pressure maintaining cavity. According to the invention, the trigger module is arranged; when a user steps on the floor, the gravity of the user can be converted into kinetic energy required by the device, so that the function of energy conversion is realized, the kinetic energy converted by the trigger module can be converted into electric energy by arranging the transmission module, and the kinetic energy is converted into the electric energy by executing a generator, so that the equipment has the function of power generation.

The invention provides a session control method, a device and a GPRS gateway control node GGSN. The GGSN is used for carrying out mapping conversion between a private network address and a public network address and maintaining a mapping entry list between the private network address and the public network address. The method comprises steps that: whether the GGSN receives a packet data protocol PDP deactivation message for requesting releasing packet data business is detected; when the detection result indicates that the GGSN receives the PDP deactivation message, the private network IP address contained in the PDP deactivation message is released, and a mapping entry corresponding to the private network IP address is deleted from the mapping entry list. According to the method, the device and the GPRS gateway control node GGSN, network address conversion on the GGSN can be realized, and the private network IP address can be released while the network address conversion mapping entry corresponding to the private network IP address is deleted.

The invention discloses an adapter that can be adjusted, controlled, converted, and connected to an external switch, including a red wire and an external switch. The No. 1 DC head is connected to the right side of the entire adapter through an electrical wire, and the upper and lower sides of the entire adapter The No. 4 DC head and the No. 2 DC head are electrically connected to the two sides, and the No. 3 DC head is electrically connected to the left side of the entire adapter. The inner cavity of the entire adapter is provided with a black wire and a red wire. The bottom side of the No. 2 DC head is electrically connected through a black wire and a red wire. It is mainly aimed at the problem of too many conversion connectors. Through reasonable planning, an adapter that can realize multiple conversions at one end is designed to meet actual needs. , designed to achieve mutual conversion between different connectors, and can also be connected to a separate switch for control, can basically realize the mutual conversion between different DC heads, can realize the conversion function of 1 to N, and can be connected with an external control switch to adjust the brightness of the lighting , audio volume and other functions.

An FPGA-based optical fiber to fully configured Camera link real-time image optical transceiver, which realizes the conversion function of optical fiber real-time image input to high-bandwidth (85MHz) and high-reliability full-configuration (Full) Camera link real-time image output, and has Full configuration (Full), medium (Medium) or basic (Base) Camera link self-adaptive configuration function of real-time image output, self-adaptive function of Camera link output working frequency, and realizes serial port data and timing synchronization control of Camera link The conversion function of signal input to optical fiber data stream output extends the communication distance of the serial port and timing control signal of Camera link; the design provides flexible configuration of SFP optical fiber module, and the transmission distance is from 500 meters to 120 kilometers, which improves the real-time performance of Camera link The stability and reliability of image transmission enhances the anti-electromagnetic interference capability of Camera link real-time image transmission and meets the needs of various engineering applications.

The invention relates to a digital pen capable of erasing physical handwriting and synchronously eliminating digital tracks. The digital pen comprises a pen shell (2), a refill (1), an erasing suite (13), a processor (5), a pressure sensor (3) and a magnetic sensor (4), wherein the refill (1) contains microcapsule type temperature change ink and can be inserted into or pulled out of the pen shell (2), and the refill (1) writes on paper, and starts the processor (5) through the pressure sensor (3) to synchronously record the digital tracks; the erasing suite (13) comprises a rubber erasing head (7) and a magnetic cylinder (9); the magnetic cylinder (9) is inserted into or pulled out of the pen shell (2), the magnetic sensor (4) senses magnetic flux, and working mode conversion between handwriting recording and digital track eliminating is achieved through the processor (5); and the rubber erasing head (7) rubs against the paper to generate heat to erase microcapsule type temperature change ink handwriting, and the magnetic cylinder (9) triggers the pressure sensor (3) to start the processor (5) to synchronously eliminate the digital tracks.

The invention provides a dual-purpose broom capable of inducing hoisting of a motor, aiming at solving the problems in the prior art that a cleaning tool needs to be usually replaced or all relative cleaning tools are not convenient to carry and the like. The dual-purpose broom capable of inducing the hoisting of the lift comprises a broom head and a broom handle, and is characterized in that the inner part of the broom handle is hollow; a connection rod penetrates through the broom handle, and one end of the connection rod is connected with a shovel; a row tooth is designed at the other end of the connection rod; the row tooth is combined with a rotary tooth of the motor; a sensor is designed on the broom handle. The sensor is used for sending a signal to a control module, and the control module is used for controlling forward rotation or backward rotation of the motor according to a signal state so as to drive the hoisting of the connection rod, so that the shovel can be stretched out or retracted back, and function conversion of the shovel and the broom is realized. The broom and the shovel are reasonably combined together, and inconvenience of taking time to replace the cleaning tool is overcome, so that the dual-purpose broom is greatly convenient for lives of people.

The invention relates to the technical field of geotechnical engineering, in particular to a multifunctional visual cylindrical surface crack permeation device which comprises a cylindrical surface crack permeameter, an acquisition and analysis unit and a gas-liquid supply unit, wherein the cylindrical surface crack permeameter comprises an inner cylinder and a transparent outer cylinder, a cylindrical space between the outer cylinder and the inner cylinder is a cylindrical surface crack, and the cylindrical surface crack is used for simulating a rock mass crack; a plurality of pressure sensors are arranged in the inner cylinder in the height direction; the position of the inner cylinder can be adjusted relative to the outer cylinder; when the inner cylinder and the outer cylinder are coaxial, the cylindrical surface cracks are parallel plate cracks; when the inner cylinder and the outer cylinder are not coaxial, the cylindrical surface crack is a crack with gradually changed gap width; the gas-liquid supply unit can inject fluid into the cylindrical surface crack, transmits pressure data in the cylindrical surface crack through the pressure sensor, transmits flow velocity data when the fluid is input through the flow sensor, and performs state adjustment according to data processing. Therefore, seepage conditions under different crack conditions are simulated, the structure is simple, the osmotic pressure difference is high, and the deformation is small.

The embodiment of the invention discloses a level switching circuit which comprises two operational amplifiers and a common-mode feedback loop. A substrate and a PMOS source follower which is connected with a source electrode are inserted in a P point of each operational amplifier, so that big difference oscillation amplitude 3.3V high common-mode level is horizontally moved to 1.2V low common mode level with low degree of distortion, and the difference oscillation amplitude is kept unchanged. The common-mode feedback loop receives output signals of the two operational amplifiers, common-mode taking operation is conducted on the two output signals, an obtained common-mode value is compared to a set reference voltage, and the comparison result is used as a feedback signal to be output to the two operational amplifiers. The embodiment of the invention further provides the operational amplifiers and a programmable gain amplifier. According to the level switching circuit, the operational amplifiers and the programmable gain amplifier, the function of switching from low level to high level and the function of switching from the high level to the low level can be achieved at the same time, and the demand for large outputting oscillation amplitude and high linearity is met.

The invention discloses a waveguide coaxial converter providing output from a narrow side, comprising a rectangular waveguide and a coaxial port that is positioned on the narrow side of the rectangular waveguide; the other side of the rectangular waveguide opposite to the narrow side where the coaxial port is positioned is provided with a step at one corner; a chamber of the rectangular waveguide is internally provided with a boss having a plurality of steps, the steps increase in height sequentially, the lowest step right faces a waveguide port, other steps turn by 90 degrees and right face the narrow side of the rectangular waveguide output by the coaxial port, and the coaxial port is positioned at the highest step. The coaxial port of the waveguide coaxial converter is mounted on the narrow side of the rectangular waveguide, the rectangular waveguide is provided with a boss structure having a turn, close to an end surface, a core of a coaxial connector is welded directly to the upper portion of the boss, and conversion from the waveguide to coaxiality is achieved. The waveguide coaxial converter of such form has wide relative bandwidth, low standing wave and low insertion loss.

The invention discloses an expandable multi-channel serial port optical terminal based on FPGA. The optical terminal realizes the conversion of serial port electrical signal input to optical fiber data stream output, and the conversion function of optical fiber data stream input to serial port electrical signal output; realizes high speed (1MHz ), the number of expandable serial port channels (supporting 499 channels) is simultaneously input to a single optical fiber output, and the conversion function of single optical fiber input to high speed (1MHz), expandable serial port channel number (supporting 499 channels) simultaneous output; the design provides The flexible configuration of the SFP optical fiber module, the transmission distance is from 500 meters to 120 kilometers, which improves the stability and reliability of high-speed serial transmission, enhances the anti-electromagnetic interference ability of high-speed serial transmission, saves costs, and meets various engineering applications. demand.

The invention provides a car lamp far-near light switching control circuit and belongs to the technical field of cars. The car lamp far-near light switching control circuit comprises a power supply circuit, a solenoid valve control circuit and an electronic ballast control circuit. The solenoid valve control circuit and the electronic ballast control circuit are connected with the power supply circuit respectively. The electronic ballast control circuit comprises a first relay and an electronic ballast controlled by the first relay. The solenoid valve control circuit comprises a second relay and a solenoid valve circuit. The power supply circuit comprises a near light control end, a far light control end and a common end which are connected to the two ends of the first relay through positive electrode conducting parts and negative electrode conducting parts respectively. The common end and the far light control end are connected with the two ends of a coil of the second relay respectively. The problem that a car light switching power supply is divided into a positive electrode light switching power supply and a negative electrode light switching power supply, so that a light switching control circuit has no universality is solved, in addition, the problem that a relay is too high in temperature is solved, and the reliability and the stability of the relays are greatly improved.

The invention discloses a multipurpose lamp holder. The multipurpose lamp holder comprises a lamp holder shell cap (6) connected with an insulation portion (5), a socket (14) is arranged on the insulation portion (5) and provided with a metal conducting cap (7), the metal conducting cap (7) is provided with connection bayonets (2) and a connection thread (1), two bosses (9) are further arranged in the metal conducting cap (7), the lower portion of each boss (9) is provided with a wiring position (10), each wiring position (10) is connected with a metal plate (12) connected with a plughole inside conducting plate (13), each metal plate (12) is connected with a conducting post (3) in the corresponding boss (9) through a spring (4), one conducting post (3) is connected with a conducting plate (8), the other conducting post (3) is connected with the metal conducting cap (7), and each conducting post (3) is further provided with a limiting protrusion (11). The multipurpose lamp holder is capable of being converted and convenient to install and use.

The invention relates to a subway signal transmission and protection system which comprises an upper computer and trackside equipment, the trackside equipment is connected with a trackside controllerof the upper computer through a relay and an interlocking machine, and the trackside equipment, the relay and the interlocking machine are connected with the upper computer through corresponding interface driving and collecting modules in the trackside controller. The trackside equipment comprises a point switch and a signal machine, and the trackside controller comprises a main control module, and a signal machine control module, a point switch control module, a communication module and an I / O acquisition module which are connected with the main control module; according to the signal transmission and protection system provided by the invention, by deploying the trackside controller, the point switch and the annunciator, the problem of route generation caused by an intelligent agent to sections and turnouts is solved.

The invention relates to a doubling conversion device and method based on an M-BUS and mainly solves the problem that existing water enterprises and power enterprises cannot read a water meter for M-BUS communication simultaneously. The doubling conversion device comprises an M-BUS output module, an M-BUS input module, a central processor module, a wireless module, a wireless meter reading module,a power supply module, a GPS positioning module and an infrared communication module; the central processor module is respectively connected with the M-BUS output module, the M-BUS input module, thewireless module, the wireless meter reading module, the power supply module, the GPS positioning module and the infrared communication module. The doubling conversion device and method provided by theinvention have the benefits that through the M-BUS output module, the M-BUS input module and the central processor module, two paths of the M-BUS can be divided into master equipment and slave equipment, so that the conversion function of two paths of data is quickly realized; the doubling conversion device has the characteristics of data transmission stability, strong anti-interference ability,low cost, small size and the like, and the probabilities of missing reading and false reading are greatly reduced.

The invention discloses a foldable tricycle which comprises a frame and wheels. The frame comprises a first supporting rod, a main beam and two second supporting rods which are sequentially connected,the first supporting rod is hinged to one end of the main beam, the second supporting rods are hinged to the other end of the main beam through a universal joint, a first limit device for limiting the universal joint to rotate is arranged on the universal joint, the first limit device is used for controlling the universal joint to be in a movable state or a locking state, the second supporting rods, the main beam and the first supporting rod are sequentially connected to form a Y-shaped or T-shaped structure, and the wheels are mounted at free ends of the first supporting rod and the second supporting rods. The foldable tricycle has the advantages that riding is comfortable, and the tricycle is high in safety and foldable and can be changed into a two-wheeler.