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 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 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 a two-line MEMS microphone which comprises an MEMS microphone chip and an ASIC chip. The MEMS microphone chip is connected with the ASIC chip, the ASIC chip is provided with a first connection end (M+) and a second connection end (M-), and the ASIC chip receives sound signals picked by the MEMS microphone chip and converts the sound signals into current signals from the first connection end to the second connection end. The two-line MEMS microphone is concise in structure and small in size and facilitates miniaturization development of line control portions of an earphone and cost is reduced.

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.

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.