131results about How to "Strong communication skills" patented technology

The invention discloses an intra-cell device to device direct communication method based on user device relay. According to the method, when a first device and a second device in the same cell need to be communicated with each other, if a ProSe server finds the distance between the two devices is too far to meet the distance requirement of device to device communication, the ProSe sends a request message for searching for an available relay device to an eNB (evolved node base) ; after receiving the request message, the eNB searches and feeds a result back to the ProSe server; the ProSe server selects a proper relay device by using the feedback result, and sends a beacon resource request to the eNB; the eNB respectively allocates beacon resources for the first device and the relay device as well as the second device and the relay device, and the relay device and the second device notify the eNB of a communication quality detection result; device to device communication scheduling is performed; after finishing service transmission, the communication devices release the device to device resources. According to the method, the communication is performed in a device to device relay mode, sending power is reduced, user device energy is saved, and the system performance is improved.

The invention discloses a land subsidence monitoring and early warning system based on global position system (GPS) and hydrostatic leveling and belongs to the field of geological disaster monitoring and early warning. The system comprises a monitoring station, a base station and a monitoring and early warning center which are distributed, wherein a GPS receiver in the monitoring station and a datum point in a hydrostatic leveling system are mounted on a same observation pillar; the GPS receiver transmits received satellite observation data to the monitoring and early warning center; a data acquisition unit acquires monitoring data of a hydrostatic leveling instrument and transmits the data to the monitoring and early warning center; the GPS receiver in the base station receives the satellite observation data of a stable area point of the base station and transmits the data to the monitoring and early warning center; and the monitoring and early warning center receives the information transmitted by the monitoring station and the base station and processes and analyzes the data. According to the system, the problem that the monitoring point subsidence amount is inaccurate in measurement after a stable datum point is unavailable or the datum point is subsided in a measuring process of the hydrostatic leveling system can be solved, and a high-precision land subsidence value is acquired in real time.

The disclosed E-mail system comprises: a server, including a user proxy module with a Web Service container, a mail transmission proxy module, and a mail distribution proxy module; and a client. Wherein, the Web Service container comprises a main package sub-module, a mail transmission sub-module, a mail receiving sub-module, a mail decomposition sub-module, a user key management sub-module, an enciphering / deciphering sub-module, and some corresponding calling interfaces. This invention avoids repeated development, and has wide application, such as PC, palm PC, and mobile phone.

The invention is a multifunctional law enforcement tool, which includes several of the tools needed by law enforcement and security personnel. In one embodiment, the multifunctional tool comprises a flashlight, deterrent spray dispenser and removable cartridge housing. The cartridge housing is an open bay on the tool, and is adapted to receive cartridges which allow the user to fire non-lethal rounds such as bean bags, rubber balls, O.C. powder, multiple probe neuromuscular disruption rounds, and many other projectiles. Inserted cartridges also fire tactical rounds such as colored smoke, breach rounds, and concussion rounds. In addition, the tool may optionally include LED light, stun gun, stun projectile, glass breaker, I.D. card holder, pistol mount, laser sight, and audio microphone or audio / visual camera. Additionally, a standard defense, ballistic defense and / or electrified “stun” shield may be attached to the tool. Additionally, a handle canister with dual bladders creating a deterrent spray stun mechanism may be provided. Additionally, other optional equipment, for example, a walkie talkie, telephone, safety strap, video display screen and Global Positioning System may also be added to the tool.

The invention is a multifunctional law enforcement tool, which includes several of the tools needed by law enforcement and security personnel. In one embodiment, the multifunctional tool comprises a flashlight, deterrent spray dispenser and removable cartridge housing. The cartridge housing is an open bay on the tool, and is adapted to receive cartridges which allow the user to fire non-lethal rounds such as bean bags, rubber balls, O.C. powder, multiple probe neuromuscular disruption rounds, and many other projectiles. Inserted cartridges also fire tactical rounds such as colored smoke, breach rounds, and concussion rounds. In addition, the tool may optionally include LED light, stun gun, stun projectile, glass breaker, I.D. card holder, pistol mount, laser sight, and audio microphone or audio / visual camera. Additionally, a standard defense, ballistic defense and / or electrified “stun” shield may be attached to the tool. Additionally, a handle canister with dual bladders creating a deterrent spray stun mechanism may be provided. Additionally, other optional equipment, for example, a walkie talkie, telephone, safety strap, video display screen and Global Positioning System may also be added to the tool.

A transponder satellite communication navigation positioning system relates to the field of space technology. The system is equipped with a high-precision atomic clock at a ground communication navigation reference station, and the satellite orbit data is given by the satellite orbit determination system; the satellite integrity is given by the monitoring system The data forms the navigation message, and the ranging code composed of pseudo-random codes forms an integrated baseband signal, which is modulated by spread spectrum to form a navigation signal carrier, which is transmitted through the antenna and forwarded by 3 to 9 satellites in a certain geometric distribution in space The device converts the frequency and forwards the downlink, and broadcasts the signal to the coverage area; the ground user terminal receiving device receives the navigation signal carrier, and despreads and demodulates it to obtain the navigation data, thereby determining the position, speed and time of the user terminal receiving device. The invention has the advantages of low investment, guaranteed accuracy, convenient and flexible system maintenance and management, and dual functions of navigation and communication, so that the navigation and positioning accuracy can reach meter-level precision or be better than meter-level precision.

The invention discloses a system for generating a unique identifier of a service point. Each service point is configured with a wireless router. The system comprises a local information server, a wireless router and a mobile local information receiver, wherein the service point information management module of the local information server is used by a service point manager to register service point information, classifies and stores the service point information in a local information database and generates an SSID for each service point, and the SSID comprises service point identification information and service point brief information; the wireless router is provided with the SSID to serve as the unique identifier of the belonged service point and broadcasts within the range of wireless communication; and the mobile local information receiver searches to obtain the unique identifier of the local service point broadcasted by the local wireless router as well as analyzes and translates service point identification information and the service point brief information in the unique identifier. The invention correspondingly discloses a method for generating the unique identifier of the service point. Thus, the system of the invention has the advantages of favorable instantaneity, favorable portability, strong communication capability and low communication cost in obtaining local information.

The invention provides a near field communication or wireless charging antenna device and an electronic device based on the antenna device. On one hand, a breakover current is formed between a coil and a metal body, and a magnetic field is generated on the metal body again through the breakover current and can do work; on the other hand, compared with the scheme that in the prior art, energy is coupled to a metallic conductor in a space coupling mode, the energy exchange efficiency is higher; in other words, the electromagnetic coupling energy transmission efficiency is lower than the energy transmission efficiency in a direct current breakover mode, and the communication capacity of the near field communication or wireless charging antenna device under the conditions of the same metallic area, the same coil area and the same device environment is higher.

Monitoring device is composed of resistance divider circuit, multiway switch circuit, difference operational amplification circuit, A / D conversion circuit, single chip and CAN communication circuit connected in sequence and communication interface to main controller of fuel cell. The device is capable of monitoring voltages of 59 single cells in fuel cell pile. Combining multiple disclosed monitoring devices with communication between main controller and each equipment realized through CAN network can monitor more cells. Features are: small size, low cost, easy of expansion, high measuring accuracy (maximum absolute error less than 0.08V) and quick measuring speed (time for measuring 59 single cell is less than 0.05 second).

The invention discloses a block chain consensus method and device based on VRF and threshold signatures. The method comprises the steps: enabling a system to carry out the periodic random sampling ofa light node miner, forming a plurality of verification groups, enabling a random number of a former block to serve as a random seed of a PRG function, and determining a verification group at a current height through the generated random number; and the whole-network re-node performs VRF grouping according to the random number of the previous block, randomly selects a proposal group of the currentheight, and proposal parts give a plurality of candidate block proposal orientations to broadcast to a verification group of the current height. And the verification group at the current height completes candidate block verification through signature voting in a group cooperation mode without interaction, and achieves intra-group consensus in a threshold signature mode to broadcast to the outsideof the group. According to the method, the intra-group consensus is achieved through periodic random sampling and grouping and voting by utilizing non-interactive signatures, the data size can reachthe minimum, and an efficient, safe and decentralized blockchain consensus scheme is realized based on a VRF algorithm and a threshold signature (BLS) algorithm.

The invention relates to an embedded substation information integration server, which is composed of a core processing module (1), an ethernet communication interface module (2), a CAN bus communication interface module (3), a serial communication interface module (4) and a switching value input-output module (5), and wherein, the core processing module (1) is composed of a processor AT91RM9200 (11), a synchronous dynamic random access memory (12), a parallel flash memory (13), a NAND flash memory (14), an electrically erasable programmable read-only memory AT24C512 (15), a real-time clock (16), a watchdog timer (17), a complex programmable logic device XC95144 (18) and peripheral auxiliary circuits, which jointly construct a basic embedded system. The invention applies uniform network and specification systems to develop the embedded substation information integration server which has the advantages of high performance, high openness, high reliability and low cost and realizes the interconnection and interoperation among the devices of different manufacturers, thus providing a data service platform for the integration, sharing and comprehensive processing of information.

A variable blast volume air-conditioning end intelligence control system based on wireless sensor network is characterized by mainly comprising a nested main control module, a wireless sensor network room information monitoring module, an output control module, and a mobile terminal module; the wireless sensor network room information monitoring module is connected with the nested main control module; the nested main control module is connected with the output control module and the mobile terminal module. The variable blast volume air-conditioning end intelligence control system and method can widely applied to energy saving optimization control of the central air-conditioning in various buildings, and especially suitable for variable blast volume air-conditioning energy saving optimization control in large spaces of a shopping mall, a theater, a gym or a railway station.

The platform is designed based on optical fiber communication technique, and in conformity to IEC61850 standard ¿C unique international standard about communication network and system of transformer substation. The platform is composed of main control module, optical fiber hub module, analog input module, switching value I / O module, and man - machine interface module. Through own redundant optical fiber interface, the main control module, analog input module and switching value I / O module are connected to two sets of optical fiber hub module so as to constitute redundant optical fiber communication network, and realize distribution type protection and coordination control. Through RS-485 communication interface, man - machine interface module is connected to the main control module and exchanging interactive data, providing local display and operation interface. Through optical fiber interface, the main control module is connected to external devices in transformer substation layer.

The invention discloses a time comparing device for a digital substation, comprising a core processing module and a PTP event processing module, an Ethernet communication interface module, a serial communication interface module and a discrete input / output module, which communicate with the core processing module. The device is characterized in that the core processing module comprises a central processing unit (CPU) AT91RM9200 which forms a basic embedded system with a synchronous dynamic random access memory, parallel flash, a real-time clock, a watchdog timer and a JTAG debug port, which are connected with the CPU AT91RM9200. The PTP event processing module, an Ethernet transceiver DP83640 and protocol stack software / hardware supporting the IEEE1588 standard are combined to realize thehigh-precision time comparing function of the substation device. The device realizes the high-precision time comparing supporting the IEEE1588 standard and the time synchronization requirement of thedigital substation device.

The invention relates to an intelligent street lamp control system, belonging to the technical field of street lamp control. The system includes a cloud server, a street lamp centralized controller and a single lamp controller; the cloud server includes a port monitoring service, a database, a short message sending service, and a mobile terminal interface. The street lamp centralized controller comprises a commercial mobile communication transceiver module, a memory, a current controller, a power carrier communication module, a clock module, a position positioning module, a sensor module and afunction expansion module. The single lamp controller comprises a power carrier communication module, a dial switch, a memory, a clock module, a sensor module and a function expansion module. The cloud server sends control commands to the street lamp centralized controller. The street lamp centralized controller controls the single lamp controller, and the single lamp controller controls the switch of the street lamp and the brightness adjustment. The single lamp controller collects the street lamp data at regular intervals and uploads the data to the street lamp centralized controller, whichprocesses the data and uploads the data to the cloud server. The invention supports the upgrading of the old city, is reliable and stable, and has strong expansibility.

The invention discloses intelligent monitoring equipment for crop drought control. The intelligent monitoring equipment comprises a plurality of soil moisture content monitoring devices, a processor, a wireless communication device, a display and a warning unit, wherein the soil moisture content monitoring devices are distributed in a monitored farmland and used for monitoring the soil moisture of monitored positions in real time; the processor analyzes and processes information which is monitored by the soil moisture content monitoring devices, automatically counts water shortage areas of the monitored farmland and the specific geographical position and water shortage degree of each water shortage area, and correspondingly makes an irrigation scheme; and each soil moisture content monitoring device comprises a soil moisture sensor, a processing module, a timing module, a global positioning system (GPS) positioning module and a power module. The intelligent monitoring equipment for the crop drought control is reasonable in design, convenient to install and maintain, low in power consumption, easy to operate and reliable in performance, irrigation quantity can be determined according to the soil moisture content, healthy growth of farm crops can be guaranteed, and the aim of saving water resources is fulfilled.

The invention provides a method and a system for a mobile terminal capable of automatically selecting a communication mode. The method comprises the following steps that: communication between a host machine and a mobile communication network is completed by the host machine, a short-distance communication network is built by the host machine, short-distance communication or mobile communication can be automatically chosen and used by the terminal signal environment by a terminal, and a mobile communication module is closed within the covering area of short-distance communication. Thus, the aims of energy saving and standby time delay can be reached by means of utilizing the advantages of wide coverage and strong communication capacity of the mobile communication network and the characteristic of low energy consumption of a short-distance communication mode.

A device for monitoring single plate voltage of vehicle fuel cell is featured as connecting input end of optical couple gating communication circuit to each single plate of fuel cell in sequence, connecting output end to isolation circuit input end, inputting signal to monolithic computer through absolute value circuit after isolation treatment, controlling four I / O pin signals by said computer and using hardware interlocking circuit to ensure uniqueness of gating channel, carrying out communication with external main controller by monolithic computer through CAN communication circuit.

The invention discloses an antenna for a mobile phone and the mobile phone with the antenna. The antenna for the mobile phone comprises a mobile phone middle shell, an excitation sheet, a dielectric filling layer and a matching network, wherein the mobile phone middle shell comprises a metal middle support plate and a metal frame; the metal middle support plate is provided with a support plate transverse gap and a support plate longitudinal gap; a frame transverse gap is formed in the metal frame; the excitation sheet comprises a feed structure and a third radiation path; the feed structure covers the support plate transverse gap in the width direction of the support plate transverse gap; the dielectric filling layer is arranged between the excitation sheet and the metal middle support plate and the support plate transverse gap, the support plate longitudinal gap and the frame transverse gap are filled with the dielectric filling layer; and the matching network is connected with the feed structure and the metal middle support plate separately. The antenna for the mobile phone disclosed by the embodiment of the invention is relatively large in bandwidth, can meet 2G, 3G and 4G communication and is simple in structure, low in cost and small in loss, the thickness of the mobile phone can be reduced and the appearance of the mobile phone can be improved.

The invention provides a novel mobile communication base station which comprises a chassis bearing system, a machine room and a mast system, wherein the chassis bearing system comprises a rack for bearing the machine room, and wheels and folding legs which are installed on the rack; the folding legs are hinged with the rack and are connected with a drive motor; the drive motor controls the folding legs to unfold or fold; the machine room is fixed on the rack and comprises a working cabin, an oil engine cabin for putting an oil engine and a mast cabin for containing a mast; the mast system comprises the mast, an antenna, a microwave pan-tilt and a lightning rod fixed at the top of the mast; the antenna is connected with the mast by an antenna fixing device; the microwave pan-tilt is connected with a console in the working cabin by signal wires; a feeder tray for containing the signal wires is arranged in the mast cabin; and the mast is an electric lifting mast. The base station has the advantage of quick and economical station building under the condition of ensuring the communication quality.

The invention provides a dual-CPU embedded navigation computer, composed of a MCU module, a PC104 module, an A / D conversion module, a dual-port RAM data share module, a complex programmable logic device decoding module and a serial communication interface module. The IMU inertial sensor information is processed by A / D conversion into digital values to be input into the MCU module, buffered by the dual-port RAM and fed into the PC104; GPS and electronic compass navigation information are directly fed into the PC104 via interface circuit to process navigation data fusion, the calculation result is transmitted to external system via interface circuit or visually displayed via a man-machine interaction interface of the system; the data acquisition is completed under the combination control of the MCU module and the CPLD decoding module. The invention has the advantages that: (1) the dual-CPU embedded navigation computer has high navigation information processing speed; has many data acquisition channels; (3) has strong communication ability; (4) has small volume low cost, high reliability, simple operation and simple man-machine interaction.

The invention discloses a wireless communication receiver of visible light of an LED traffic light, a receiving method and an application method. A receiver adopting a green light filter lens and a red light filter lens is horizontally positioned at a place of the top of a vehicle, in which vertical inclination angles are the same. The emitted visible light is focused to a light detector. A code element signal is modulated and loaded to the LED traffic light, and the visible light emitted by the LED traffic light, is converted into an electric signal through the light detector and a signal amplification module. Signal current resulting from the conversion of the red light or the green light is restored by a balance and judgment module into an original code element signal. The restored code element signal is subject to diversity combination and then output through a diversity combining algorithm module. By optionally receiving the wavelength of the visible light, the invention achieves high signal noise ratio. A similarity comparison combination method is adopted to screen a branch with high error code rate so that the error code rate of the system is reduced to 10<-6>. The adoption of the diversity combination method effectively improves the communication quality, increases the distance of reliable communication and leads to strong communication capability and wide communication coverage.

The invention relates to a mobile-internet-based VTS safety information service system and method. The system is characterized in that the system comprises a plurality of ship navigation application clients arranged at a chip, a cloud service platform, a VTS safety information database, and a plurality of VTS command platforms, wherein the ship navigation application clients have the mobile internet communication capability. The cloud service platform is operated at an external network of a bureau of maritime affairs; and the VTS safety information database and the VTS command platforms are operated at an internal network of the bureau of maritime affairs. According to the technical scheme, a complete and intelligent integrated VTS service system can be established for any inland river and thus the inland water transportation becomes smooth, safe and efficient in order, thereby creating great economic and social benefits. Therefore, the provided system and method can be applied to the ship traffic management field.

The invention relates to a thermal error compensation device on the basis of a numerical control workbench, which comprises serial temperature sensing units distributed on the numerical control workbench, a temperature acquisition control unit connected with the serial temperature sensing units and an error computing and compensating unit connected with the temperature acquisition control unit. The thermal error compensation device is characterized in that each temperature sensing unit comprises at least two temperature sensors; and the temperature sensors are connected with the temperature acquisition control unit after being connected in series into a group and respectively transfer temperature information of the temperature sensors to the temperature acquisition control unit in a digital quantity mode at different time. The thermal error compensation device has the beneficial effects of simple structure, convenience for connection, few occupied interfaces and the like.

The invention discloses an antenna used for terminal equipment. The antenna used for terminal equipment comprises a first IFA antenna and a second IFA antenna; a branch which is formed by a first trace branch 101 and a metal middle frame positioned between a second upper frame point B and a breaking joint 202 in the first IFA antenna is used for radiating a high-frequency signal; and a branch which is formed by a second trace branch 102 and a metal middle frame positioned between a first upper frame point A and the breaking joint 202 in the second IFA antenna is used for radiating a high-frequency signal. Through the first IFA antenna and the second IFA antenna, the signal can be radiated jointly, so that the antenna radiation bandwidth within a relatively small clearance region can be expanded, the radiation ability and radiation efficiency of the antenna can be improved obviously, and excellent communication ability of the antenna within the relatively small clearance region can be realized.

The invention relates to an embedded B-mode ultrasonic diagnostic device and a signal processing method thereof, and the embedded B-mode ultrasonic diagnostic device comprises a housing and a display device, wherein a power supply module and a signal acquisition and processing circuit are mounted in the housing, and the power supply module can provide power supplies of plus or minus 80V, plus or minus 60V, 12V, plus or minus 5V; and the signal acquisition and processing circuit comprises an eight-channel A / D conversion circuit, an FPGA chip and an ARM9 chip, wherein the FPGA chip is connectedwith a dynamic memory, the eight-channel A / D conversion circuit is used for receiving an ultrasonic signal from a probe, the output of the eight-channel A / D conversion circuit is connected with a data input port of the FPGA chip, a control port of the FPGA chip is connected with a control port of the ARM9 chip, a data port of the ARM9 chip is connected with the data port of the FPGA chip, and theFPGA chip is connected with the display device. The embedded B-mode ultrasonic diagnostic device has the benefits that as the embedded B-mode ultrasonic diagnostic device adopts the teamwork of multiple processors and adopts an embedded operating system, the embedded B-mode ultrasonic diagnostic device has good modularization, scalability and real-time performance, powerful communication capacity, and rich and beautiful interface, and can lead the performances of the whole B-mode system to be more stable and avoid the halting phenomenon during the normal working.

The invention provides a cooking method, a cooking device, a server and a cooking appliance. The cooking method comprises the following steps: analyzing a network address of the cooking appliance after creating the communication connection with the cooking appliance; determining a geographic location of the cooking appliance according to the network address; acquiring an environment parameter sentby the cooking appliance and adding the same to inventory in the cooking appliance; generating a cloud-side cooking parameter according to the environment parameter, the inventory and the geographiclocation; sending the cloud-side cooking parameter to the cooking appliance, thereby enabling the cooking device to cook according to the cloud-side cooking parameter. Through the technical scheme provided by the invention, the taste of the cooking material is improved, the dietary habit and the use habit of the user at different geographical locations can be satisfied, and the operation step of the user is simplified.

Disclosed in the present invention are a mobile terminal and an NFC antenna, wherein the mobile terminal comprises: a terminal main body having a back on which a back longitudinal axis and a back horizontal axis are limited; and an NFC antenna located on the back of the terminal main body. At least one of the back longitudinal axis and the back horizontal axis of the terminal main body drills through the NFC antenna, and the NFC antenna is configured to be unsymmetrical relative to the at least one of the back longitudinal axis and the back horizontal axis. The mobile terminal according to the embodiments of the present invention has a smaller resonance frequency offset when processing a P2P operation, and has advantages such as high communication sensitivity, high communication success rate and good communication capability.

The invention discloses rainfall and water level monitoring equipment. According to the invention, a solar energy electric board is used for charging a photovoltaic storage battery which provides a voltage of 12V for a rainfall sensor and a water level sensor and a detection module; the 12V voltage is converted into 5V voltage through a voltage converting circuit, and the converted voltage is provided for the detection module and a GRPS module; the 5V voltage is converted into 3.3V voltage through a voltage converting circuit, and the converted voltage is provided for a communication module, a storage module, and a controller module. With the rainfall and water level sensors, collected water condition information is processed by the detection module, and is transmitted to the controller. The controller transmits the received rainfall and water level condition information to the storage module, and transmits the information to a remote monitoring center through GPRS. The remote monitoring center receives the rainfall and water level condition information, and stores the information to a database. Also, the remote monitoring center provides real-time data displaying, history data analyzing and data enquiring services. The equipment provided by the invention is advantaged in high processing speed, high precision, and good system security.

The invention relates to a software development platform-based multi-objective cross debugging system. The system comprises a cloud platform-based data processing server, a retrieval server, client terminals, a communication network, a relay server, a communication protocol server and an identity recognition server, wherein the cloud platform-based data processing server is connected with the retrieval server, the communication protocol server and the identity recognition server through the communication network to form a primary service network; the relay server is connected with the client terminals through the communication network; and the client terminals are mutually connected through the communication network to form a secondary service network. On one hand, the network structure issimple, the establishment and maintenance costs are low, the data processing capability and the communication capability are good, and the data processing reliability is high; and on the other hand,the dependency on hardware equipment during software running can be effectively reduced, and the data processing operation capability is improved while the hardware equipment input cost is reduced.