65results about How to "A large amount of data is transferred" patented technology

The invention relates to a wirelessly chargeable RFID electronic tag, comprising a signal receiving antenna, a signal processing module, an energy receiving antenna, a rectifying circuit module and an energy storage capacitor, wherein the rectifying circuit module comprises a low pass filter, a matching circuit, a rectifier diode and a direct-pass filter, wherein one end of the low pass filter is directly connected with the energy receiving antenna and the other end is connected with the matching circuit; the matching circuit is connected with the direct-pass filter via the rectifier diode, the other end of the direct-pass filter is directly connected with the energy storage capacitor, the other end of the energy storage capacitor is directly connected with the signal processing module, and the signal processing module is connected with the signal receiving antenna. The RFID electronic tag capable of being charged in a wireless mode has the following benefits that the advantages of an active RFID such as long recognition distance, large transmission data amount, low emission power and high compatibility and the like are reserved, and the problem that the service life of the existing active RFID electronic tag depends on the service life of cells is eliminated. The wirelessly chargeable RFID electronic tag has wide application prospect.

The invention discloses a high-speed data transfer board used for geophysical exploration, wherein, a data interface module is connected with an upper level transfer board and a lower level transfer board which are used for receiving and balancing upstream data from a back level transfer board and sending the upstream data to a deserializing module or carrying out preemphasis on sending voltage of the upstream data; the deserializing module and the data interface module are connected to deserialize the upstream data from the back level transfer board, then the converted serial upstream data is sent to a field programmable logic device or the upstream data sent to the up level transfer board is deserialized and then sent to the data interface module; the field programmable logic device and the deserializing module are connected to process and store the upstream data, and the processed upstream data is sent to the deserializing module. The invention can improve the collection capacity of seismic data and the reliability and stability of seismic data collection with long cable and high density.

The invention provides a method and device for high-speed wired duplexing information communication between a well and the ground. The method comprises the steps of: collecting signals in the well by a sensor; modulating the collected signals by adopting a coding orthogonal frequency division multiplexing technology into OFDM (Orthogonal Frequency Division Multiplexing) signals; transmitting the signals to the ground by a basic structure unit consisting of a drill stem with cables and the like and further demodulating to obtain the collected signals in the well, thereby determining the underground temperature, pressure and fluid condition, formulating a drilling well completion strategy and forming a ground control instruction which is transmitted to an appointed position in the well by a transmission system. Compared with traditional like technologies, the system has the advantages of a large amount of transmittance data, high transmission speed, strong real-time property, two-way communication, high confidentiality and the like.

The invention provides a master-slave distributed system which comprises a master system consisting of PC104 modules, and slave systems consisting of a plurality of 51 single-chip microcomputers. A dual-port RAM is taken as a buffer area for data interaction between the master system consisting of the PC104 modules and the slave systems consisting of a plurality of 51 single-chip microcomputers. The system further comprises a programmable logic device. The system has the advantages of high transmission speed, good real-time characteristic, high reliability and simple circuit. Parallel communication between the PC104 and a plurality of 51 single-chip microcomputer systems can be achieved without address access conflict by combining the application of the programmable logic device. The invention also provides a parallel communication method which is applied to the master-slave distributed system.

The invention discloses an electronic label host which comprises a controller, a Zigbee communication module, a WiFi communication module, a liquid crystal module, an EEPROM module, a FLASH module, an SD_CARD module and a USB serial port converting module. The modules are connected with the controller. The WiFi communication module and the Zigbee communication module are used for transmitting wireless information. The liquid crystal module is used for displaying information. The problems that a paper label is used for one time, errors can easily happen during replacing, displayed information is single, and losing can happen easily are solved. Meanwhile, the WiFi communication module and the Zigbee communication module are combined, and the manufacturing cost of the electronic label host is effectively controlled. The invention further provides an electronic label slave machine which is matched with the electronic label host for use and an electronic label system which comprises the electronic label host and the electronic label slave machine and is used for a supermarket.

The invention discloses an apparatus for automatically downloading firmware programs of optical modules in a classified manner. By utilizing the apparatus, the optical modules consisting of differentMCUs can be subjected to firmware program downloading, and the temperatures of the optical modules are calibrated. The apparatus is realized through the following technical scheme: an MCU chip U1 is connected with a dual 4:1 multiplexer chip U3 and a dual 4:1 multiplexer chip U4; firmware program downloading software in a PC sends an instruction of switching a conduction path of the dual 4:1 multiplexer chip to the MCU chip U1 through a USB; and after receiving the instruction, the MCU chip U1 judges the type of the instruction, switches the conduction path of the dual 4:1 multiplexer chip toan electric interface socket of the corresponding optical module according to a selected optical module type, and executes firmware program downloading for the optical module through a C2 bus or an I2C BUS.

The invention discloses a novel power utilization information collection system based on TD-LTE (time division-long term evolution) wireless broadband. The system comprises a power communication control center, an intelligent ammeter, an information control system, a TD-LTE communication system, a radio-frequency processing device, a concentrator and a collector. The system disclosed by the invention adopts the TD-LTE technology and can adopt a flexible uplink/downlink configuration scheme in which the down peak rate can reach 80M and the up peak rate can reach 20M, and can provide a 64-Kbps full-duplex channel. Due to the adoption of a flat network architecture, the characteristics of high-speed data transmission, short system response time and high safety can be ensured.

The invention discloses an antenna adjustment device and method for a vehicle active RFID (Radio Frequency Identification) and a vehicle controller. The device is installed on a PCB (Printed Circuit Board) circuit board of the vehicle controller and the device comprises an RFID reader, an antenna, an antenna rotary table, a rotary shaft and a connection wire, wherein the RFID reader and the antenna are arranged on the antenna rotary table and the antenna rotary table is connected with the rotary shaft; the antenna rotary table drives the RFID reader and the antenna to rotate through the rotary shaft to realize the direction adjustment of the antenna; the RFID reader is connected with the PCB circuit board through the connection wire, wherein the RFID reader is used for receiving signals sent by an active RFID label through the antenna. The antenna adjustment device is provided with the active RFID label, the data transmission is not limited by the installation direction of the controller and the antenna adjustment can be carried out by the antenna adjustment device according to strength information of the received signals, so that the antenna can be adjusted to be best receiving direction.

The invention discloses a data center network system and a signal transmission system. Each switch is provided with a hub device in communication connection with the switch itself, the hub devices and the switches form a star network topology structure, and in comparison with a mesh network topology structure, wiring among devices in the star network topology structure is less, the network wiring amount can be effectively reduced, and the workload of subsequent network maintenance is reduced; signals outputted by a source server pass through a source switch in communication connection with the source server, a hub device, and a target switch in communication connection with a target server sequentially and further reach the target server, all signals are forwarded through the hub devices, the signal forwarding levels are few, and thus, the network structure flattening of the data center network system is realized, energy consumption caused by a core layer device and a convergence layer device is reduced, and the system energy consumption and the device maintenance cost are effectively reduced.

The invention relates to a pure-optical HDMI optical cable based on wireless transmission. The pure-optical HDMI optical cable comprises a high-definition multimedia transmitting module, a high-definition multimedia receiving module and an optical fibre; one end of the high-definition multimedia transmitting module is connected to a signal source; the other end of the high-definition multimedia transmitting module is connected to the high-definition multimedia receiving module through the optical fibre; a wireless transmitting module is also built in the high-definition multimedia transmitting module; the high-definition multimedia transmitting module is connected with a wireless receiving module built in the high-definition multimedia receiving module through the wireless transmitting module; an electric-optical conversion module used for converting electric signals into optical signals is also built in the high-definition multimedia transmitting module; and an optical-electric conversion module used for converting optical signals into electric signals is also built in the high-definition multimedia receiving module. The pure-optical HDMI optical cable disclosed by the invention has the characteristics of being high in transmission rate and electromagnetic interference resistant capability.

The invention provides a flow field image preprocessing method and a system thereof, belongs to the field of image preprocessing methods and devices, aims at the problem in the prior art that preprocessing time is relatively long is flow field measurement, and improves the flow field image preprocessing efficiency. The flow field image preprocessing method comprises the steps of equalization, image stretching, noise judgment, fixed noise removing, binary mean value image construction and mask operation. The flow field image preprocessing system comprises an input Ethernet port, an Ethernet input control chip, a digital signal processor, a synchronous dynamic random access memory, a dynamic storage chip, a live-line erasable programmable read only memory, an output Ethernet port and an Ethernet output control chip. According to the invention, the size and the power consumption are relatively small, and the flow field image preprocessing system can be embedded into an existing flow field measuring instrument to carry out flow field measured image preprocessing and output flow filed measured images relatively low in noise, so that the efficiency and the processing speed of a whole rear end processor are improved.

The invention relates to power equipment, and discloses a broadband power line carrier meter reading concentrator, including a power supply and a control system, the power supply is used to supply power to the control system, and the control system includes a main processor, a data acquisition module, a data transmission module, and a broadband power line carrier Communication module, uplink communication module, temperature sensor, humidity sensor, memory and display screen, main processor is connected with data acquisition module, data sending module, temperature sensor, humidity sensor, memory, display screen respectively, data acquisition module is connected with broadband power line carrier The communication module is connected, and the data sending module is connected with the uplink communication module. The invention has the effects of faster data transmission, stable transmission signal and large transmission data volume.

The invention discloses a signal collecting and monitoring system based on a wireless node network. A field terminal subsystem comprises a plurality of technological parameter collecting devices and a plurality of video collecting devices, and technological parameter data and video image data in a coal bed gas production well are collected; a wireless backbone network subsystem comprises a plurality of wireless receiving-dispatching node devices and a wireless receiving-dispatching root node device, all the wireless receiving-dispatching node devices are connected with the technological parameter collecting devices and the video collecting devices arranged in the coal bed gas production well, receive the technological parameter data collected by the technological parameter collecting devices and the video image data collected by the video collecting devices, and send the received technological parameter data and the received video image data to the wireless receiving-dispatching root node device, wherein when a wireless communication link between a certain wireless receiving-dispatching node device and the wireless receiving-dispatching root node device is blocked, the wireless receiving-dispatching node device carries out wireless communication with the wireless receiving-dispatching root node device through the adjacent wireless receiving-dispatching node device.

The invention discloses a medical monitoring system based on ZigBee, and the system comprises a Zigbee wireless monitoring node, a ZigBee coordinator, a ZigBee-WiFi gateway module and a control host; the Zigbee wireless monitoring node sends human physiological data, environmental data, a detection alarm signal, a calling signal and an active alarm signal to the Zigbee coordinator; the ZigBee coordinator is used for collecting data obtained by the Zigbee wireless monitoring nodes and forwarding the data to the Zigbee-WiFi gateway module; the invention further discloses a medical monitoring network congestion control method based on ZigBee, and the medical monitoring network congestion control method based on ZigBee solves the problems that traditional equipment is difficult in wiring and not easy to move; the transmission data volume at the initial starting stage of the system is reduced, and network congestion is reduced. The congestion avoidance control is carried out to ensure the transmission of the most important data.

A river model test multi-channel wireless transmission and receiving communication system comprises an upper computer and a plurality of lower computers. The upper computer is formed by a main control computer, a communication controller and bit stream adapter and a wireless communication module. The main control computer is used for user interaction, code stream calculation, channel setting and channel management. The communication controller and code stream adapter is used for controlling the connection of the wireless communication module. The wireless communication module is used for transmitting and receiving data. The main control computer is connected with the communication controller and code stream adapter which is connected with the wireless communication module. Five wireless channel modules are arranged in the wireless communication modules to be used for representing five types of channels used in a river model wireless communication system, and each wireless channel module manages the data transmission and receiving of a corresponding wireless channel. By means of the system, appropriate wireless channels can be selected automatically to transmit data, the transmission is rapid, and the efficiency is high.

The invention discloses a power line communication system and a power line communication method. The power line communication system comprises a high voltage frequency conversion coding module, which is used for changing a power supply wave frequency according to a to-be-transmitted power line communication signal and for coding; a transmission module, which is used for transmitting the coded power supply wave; a digital-analog induction conversion module, which is used for detecting the voltage and/or the current value of the coded power supply wave, and is used for outputting a digital signal. The high voltage power supply wave is directly converted into the power supply wave provided with the power line communication signal, and the loss is small during the transmission, and the transmission distance is long.

The invention relates to a system for collecting and displaying operation parameters of a wind power current transformer based on a DSP and an ARM. The system comprises a data collection unit, a data interaction unit, an Ethernet interface unit, a virtual oscilloscope unit and a power supply unit. The data collection unit is used for collecting a network voltage signal, a grid-side current signal, a machine-side current signal and a stator voltage signal on spot, wherein all the signals reflect the operation parameters of the power current transformer; the collected signals are input to a secondary primary conditioning circuit; the primary conditioning circuit receives, filters and amplifies the input signals, and then sends the input signals to the data interaction unit. The Ethernet communication technology is applied to the system for monitoring and controlling the parameters of the wind power current transformer, data of the on-spot parameters of the wind power current transformer are collected and processed through a dual-core processor, the collected data are interacted through an auxiliary control ARM unit and the virtual oscilloscope unit of an upper computer, and the shortcoming of the poor human-computer interaction ability of the DSP is overcome.

The invention relates to a power transmission line monitoring technology, in particular to a power transmission line state monitoring system based on a wireless electric power private network and a star topology. The power transmission line state monitoring system solves the problem that an existing power transmission line state monitoring network lacks a reasonable network topology structure. The power transmission line state monitoring system based on the wireless electric power private network and the star topology comprises a terminal part and a transmission medium part. The terminal part comprises FTUs, wireless network cameras, intelligent electric meters, wireless access devices, a radio remote head, a wireless edge server, a network management server and an application server. Each FTU and a first wireless access device jointly form a star topology structure; each wireless network camera and a second wireless access device jointly form a star topology structure; and each intelligent electric meter and a third wireless access device jointly form a star topology structure. The power transmission line state monitoring system is suitable for a power transmission line.