340results about How to "Does not affect transmission" patented technology

The invention discloses an automatic coal and gangue sorting system and method, and belongs to a coal and gangue sorting system and method. The sorting system comprises a vibrator feeder, a queuing device, a coal collecting hopper, a gangue collecting hopper, a belt conveyor, a detecting device, a camera, an industrial personal computer, a lens hood, an LED light source, an executing device, a controller, a high-speed electromagnetic valve and a spray gun. A belt is monitored in real time through the camera, and two square sub-regions are selected, wherein side lengths of belt imaging regions corresponding to the sub-regions are smaller than the lower limit of granularity of coal and gangue; the grey level histogram average value of the two sub-regions is calculated in real time and compared with a threshold, determined through a test, of gangue, coal and the belt, when the grey level histogram average value of the sub-regions is larger than the threshold, the material is judged as gangue, the controller controls the high-speed electromagnetic valve to be switched on, the spray gun blows the gangue into the gangue collecting hopper, and coal continues to move and fall to the coal collecting hopper or the conveying belt. Real-time monitoring is conducted through the camera, control is timely, the sorting result is accurate, the layout is close to that of site artificial gangue discharge, and actual transformation is easy.

The invention relates to an electrochemical composite decomposition manufacturing method and an electrochemical composite decomposition manufacturing device of a laser light tube electrode. Solid pulse laser is changed into an annular hollow laser beam with central light strength as zero by a light beam modulating system; compression shock is generated for electrochemical deposition in a non-solid light tube electrode by utilizing annular laser to irradiate expansion of plasma; decomposition stress is removed, a cathode reaction gas is exhausted, and material density is improved; moreover, the deposition reaction is only generated on the light beam with central laser energy as zero, so that the electrochemical composite deposition processing, repairing and surface performance strengthening which are high in quality and good in locality are realized. The electrochemical composite decomposition manufacturing method and the electrochemical composite decomposition manufacturing device disclosed by the invention are suitable for processing, repairing and surface performance strengthening of micro high-performance metal components, and belong to the field of micro quick forming and processing.

The invention discloses a multi-network-integration multifunctional digital emergency broadcast machine. The integration includes a single-chip microcomputer, and a signal reception decoding decryption module, a remote wake up processing module, a remote maintenance unit, an automatic priority level processing module, a data detection module, a power amplifier module, a power supply management module, a control instruction and audio signal output module, an LED and LCD control module, an intermediate wave frequency modulation reception module, an FM frequency modulation reception module, a module, a DTMB (Digital Television Terrestrial Multimedia Broadcasting) digital television network signal reception module, an IP network signal reception and data return module, a microphone module, an MP3 module, a satellite signal reception module, a RDS (Radio Data System) wired/wireless frequency modulation reception module, a GPRS/GSM/CDMA network communication and data return module, and the like which are connected with the single-chip microcomputer. The multi-network-integration multifunctional digital emergency broadcast machine carries out control data and audio transmission and broadcasting, is suitable for multiple network environments and transmission modes, ensures the high coverage rate, the stability and the broadcasting safety, and achieves multi-priority-level setting.

The invention provides a high-voltage side gate drive circuit capable of resisting noise interference. The high-voltage side gate drive circuit comprises a high-voltage level shift circuit, a differential-mode noise elimination circuit, an RS trigger and an output drive level circuit, wherein a low-side pulse signal is converted into a high-voltage pulse signal for output through the high-voltage level shift circuit; a common mode noise elimination circuit is connected between the output of the high-voltage level shift circuit and the input of the differential-mode noise elimination circuit; the common mode noise elimination circuit is used for eliminating a common mode noise signal generated in application; and the differential-mode noise elimination circuit eliminates the differential-mode noise introduced by process variations, outputs a normal pulse signal, reduces the normal pulse signal into a normal square signal through the RS trigger, outputs the square signal from the output drive level circuit and drives an external high-side power tube.

The invention discloses a HDLC data downstream and upstream method and a communication device in a RRU network. The data downstream method includes: FPGA receives data frames, and detects whether the data frames are corresponding level data or next level data, according to the data frames address information, after determining the data frames contain valid data; if the data frames are the corresponding level data, perform decoding and CRC examination, store in a cache unit and notify CPU to read out the corresponding level data in the cache unit; if the data frames are the next level data, send to next level RRU. The invention also provides the data upstream method and the data downstream and upstream communication device. The invention adopts FPGA, implements separated processing to the downstream or the upstream corresponding level data and non corresponding level data, reduces CPU work load and can adopt low speed CPU with cost reduction. If the CPU on the corresponding level breaks down, the transmission of the next level data will not be influenced. The invention improves data transmission stability.

The invention discloses an insertion sheet for measuring the internal temperature distribution of a fuel cell, which is a device for measuring the internal temperature distribution of a fuel cell. The insertion sheet comprises a stainless steel substrate with gold plated on two sides, a plurality of leak seams and ribs are arranged on the substrate, the size and the shape of the leak seams and the ribs are same with those of grooves and ridges on a flow field plate of the fuel cell to be measured, and the positions mutually correspond. The entire surfaces of the ribs between the leak seams are provided with a film thermocouple which is formed by plating four films through evaporation by using a vacuum plating technology. An outgoing line of a measuring head of the film thermocouple extends to the edge of the substrate by using a printed circuit method and is provided with a standard wiring port connected with an external circuit on the edge of the substrate. The insertion sheet for measuring the internal transient temperature distribution of the fuel cell is completely independent of an object to be measured, has a simple structure and a wide use range, is accurate for measurement and can be used for the online measurement of the internal temperature distribution situation of the fuel cell.

The invention provides a congestion control method and a message processing device. The congestion control method comprises the steps of determining whether the buffer water line of a message queue of a destination port is larger or equal to a congestion line, wherein the messages in the message queue have the same processing priority; and if the buffer water line is larger or equal to the congestion line, sending a first flow control frame to a source message processing device by exchanging the message processing device, wherein the first flow control frame comprises an MAC (media access control) address of the destination port and indicating information that the message queue is in a congestion state, so that the message corresponding to the message queue can be discarded by the source message processing device. With the adoption of the congestion control method and the message processing device, the use ratio of system bandwidth resources of the internet of a switch can be improved.

The invention discloses a protection device of an Ethernet passive optical network (EPON) system and a data redundancy backup method and a monitoring method. A data redundancy backup device comprises an optical line terminal (OLT) downlink data processing module, an optical network unit (ONU) downlink data de-encapsulation module, an ONU uplink data processing module and an OLT uplink data de-encapsulation module, the protection device of the EPON system is also provided with a monitoring module, and the data redundancy backup method and the monitoring method are realized through the monitoring module. One optical-fiber full-protection device and one data redundancy backup device are added on an OLT device and an ONU device, so that the hand-in-hand optical-fiber full-protection in the EPON system can be realized, the zero-millisecond master and slave switching of the optical fiber can be realized, the zero business interruption is realized, redundant data backup is also provided, and the monitoring module can detect failure of a media access control (MAC) chip and other circuits; and the maintainability of the system is greatly improved. The high-reliability application places in the application fields such as military communication, industrial real-time control, security protection, and video monitoring can be satisfied.

The invention relates to a 1553B digital communication device. In order to expand the communication capacity, expand the data-transfer capacity and enhance the communication properties such as property in resisting interference and the like in a 1553B bus, the invention provides the technical scheme: a receiving method for bandwidth expansion of a 1553B communication bus. The following method sub-modules: an analog front end (AFE), a frame detecting module, a symbol synchronizing module, an inverse FFT (fast Fourier transformation) module, a block floating point module, a channel balancing module, a frequency offset synchronizing module, a QAM (quadrature amplitude modulation) de-mapping module of a dynamic threshold and a base-band processing module are provided in the receiving method, wherein the AFE is used for performing signal amplification and AD (analog-to-digital) conversion, sampling an analog signal into a digital signal and transmitting; the frame detecting module is used for detecting the access situation of a frame; the IFFT module is used for processing a base-band signal. The method provided by the invention is mainly used for 1553B digital communication.

The invention discloses an electroencephalogram signal wireless collecting system which comprises a control module, a wireless electrode cap module and an electroencephalogram processing module.The control module, the wireless electrode cap module and the electroencephalogram processing module are each provided with a wireless signal transmission module.The wireless electrode cap module further comprises a microcurrent stimulator, a dry electrode and an electroencephalogram resistance detecting device.The microcurrent stimulator receives a control instruction wirelessly sent by the control module and simulates the electrode to output simulation current to act on scalp.The dry electrode collects an electroencephalogram signal fed back by the scalp and sends the signal to the electroencephalogram resistance detecting device, and the signal is processed and then transmitted to an amplifier through the corresponding wireless signal transmission module to be amplified.The dry electrode structure in the electroencephalogram signal wireless collecting system is improved, the dry electrode can make tighter contact with scalp, and the signal to noise ratio is higher.

The invention relates to an anti-shift full-automatic box sealing machine with a disinfecting function. The anti-shift full-automatic box sealing machine with the disinfecting function comprises a machine body and a steering plate, the left side of the machine body is provided with roller shafts, the steering plate is arranged in the middles of the roller shafts, a conveyor belt is arranged abovethe machine body, and first hydraulic rods are fixedly connected above the machine body; a top plate is arranged above the first hydraulic rods, moreover, paper adhesive tape is arranged on the lowerside of the top plate, a fixing plate is fixed below the paper adhesive tape, and adhesive tape tensioning rollers are arranged on two sides below the fixing plate; and a paper box is arranged on theconveyor belt, moreover, first fixing rods are fixed to the two sides of the paper box, electric push rods are arranged on the inner sides of the first fixing rods, and rolling wheels are arranged onthe inner sides of the electric push rods. According to the anti-shift full-automatic box sealing machine with the disinfecting function, the rolling wheels are arranged so that the position shiftingof the paper box can be prevented, and meanwhile, the rolling wheels can roll along with the movement of the paper box, so that conveying of the paper box is not influenced.

The invention relates to a ku/ka dual-frequency flat antenna. Coaxial resonant cavities are adopted in the antenna, each inner resonant cavity is provided with a ka radiating slot, and each outer resonant cavity is provided with a ku radiating slot. Ku linear polarization is realized by arranging the ku radiating slots on a ku/ka dual-frequency radiator, ka circular polarization is realized by arranging the ka radiating slots on the ku/ka dual-frequency radiator to realize two linear polarizations of which the phase difference is 90 degrees, and ku/ka dual-frequency receiving is realized by the flat antenna. The flat antenna is applied to a portable instant satellite communication system, and the flat antenna and a digital display are designed separately, so that the flat antenna realizes plug and play and is high in portability and easy to operate. The high-precision satellite antenna system can work in dual frequency bands of ku and ka, and is particularly suitable for workers of field operation, scientific exploration, rescue and relief, military affairs and police affairs, news and the like.

The invention discloses a ternary nanocomposite Au/RGO-TiO2 nanotube array as well as a preparation method and application thereof. A graphene film and nano gold particles are modified on the surface of a titanium dioxide nanotube array; and the nano gold particles are also modified and distributed on the inner pipe wall and the outer pipe wall of the titanium dioxide nanotube array. By the ternary nanocomposite Au/RGO-TiO2 nanotube array as well as the preparation method and the application thereof, the adsorption capability and the electron conduction capability of the titanium dioxide nanotube array are further enhanced, the absorption range of a visible light zone is widened, and the photoelectric conversion efficiency is improved.

The invention relates to a coal flotation process automatic control system and method. The coal flotation process automatic control system comprises a flotation machine, an ore slurry pre-treatment machine, a colloidal mill, a collecting agent storage tank, a frothing agent storage tank, detection equipment and executing equipment, wherein the colloidal mill is connected with each of the flotation machine and the ore slurry pre-treatment machine; the frothing agent storage tank is connected with each of the flotation machine and the ore slurry pre-treatment machine; the detection equipment connected with the executing equipment is arranged in the flotation machine. According to the coal flotation process automatic control system and method, a video camera is utilized to perform real-time detection on flotation froth and floatation tailings subjected to pressure filtration, so that the image information of froth and tailings subjected to pressure filtration can be collected and uploaded to an industrial personal computer, and meanwhile real-time state feature parameter values of the froth and tailings images are extracted and compared with a given threshold value determined by an off-line standard experiment, so as to obtain the froth information of enrichment clean coal and the coal leakage quantity information of tailings; besides, the dosage, the clear water quantity and the air input are adjusted in real time through the industrial personal computer according to the froth information and the coal leakage quantity by adopting the control method, the flotation machine can maintain a better working state, and a stable product quality can be ensured.

A cubic electrode is made up of base material, cubic structure and catalytic activate materials, the cubic structure material is composed of column, ball or un regular particles from millimicron-micron, combined or adhered to the base material with short distance capillary channel and gas breath structure favourable to methyl alcohol siphon characterizing in high pore space retion and rough surface. It's real surface area is far large than its own geometrical area and catalytic active to methyl alcohol. The cubic structure of electrode is built with electric chemical method reaching dual targets with cubic structure and catalytic active.

The invention discloses an application method of a spanning tree protocol (STP) in a wireless network, which is used for solving the problem that in the wireless network, the control of the AP to the message forwarding state of a port based on the STP affects the message transmission between the AP and other AP. The method comprises the following steps: receiving a BPDU message sent from a second AP by a first AP; sending the message to a virtual interface corresponding to an MAC address according to the MAC address information of the second AP and the virtual interface corresponding to the MAC address information; and controlling the message forwarding state of the virtual interface based on the STP according to the message received by the virtual interface. The invention also discloses an application device of the STP in the wireless network. In the scheme provided by the invention, because the AP establishes the corresponding virtual interface based on the connection between the AP and other AP, the message forwarding state of each virtual interface can be controlled so that the message transmission between the AP and other AP can not be affected.

The invention provides a novel intelligent automatic humidity and temperature kiln inside curing system for a cement product. The system comprises a curing kiln; four heat-insulation soft spaced sections are arranged in a sealed kiln body and correspond to four curing periods of the cement product respectively; and the four curing periods include a pre-curing period, a heating period, a heat preservation period and a cooling period. The method comprises the following concrete steps: 1) determining the time of the four curing periods, setting the conveying speed of a plate conveying chain belt to be a constant value, and enabling the curing time ratio of the four heat-insulation soft spaced sections to be equal to the length ratio of the four heat-insulation soft spaced sections; and 2) setting the temperature and the humidity in each of the four heat-insulation soft spaced sections through a steam humidification device and a warm wind temperature control machine respectively. According to the curing system and method, the hydration and carbonization processes of the concrete cement product can be accelerated, the curing cycle can be shortened, and the problem of quality influence due to a series of factors such as cracking, deformation, collapse and the like can be solved.

The invention relates to a plasma resonator waveguide device with heat insulation function used for a PCVD optical fiber preform machining tool. The invention comprises a microwave generator, a wave guide and a plasma resonator; wherein, the microwave generator is conducted with the plasma resonator through the wave guide; the plasma resonator is arranged inside a heating furnace; the difference lies in that the waveguide internal cavity channel is provided with a heating separator. The invention can effectively prevent the heat radiation from entering into the microwave generator through the waveguide device without affecting the transmission of the microwave, which avoids the overheated state of the microwave generator and makes the microwave generator operate under a relative lower temperature, thus enhancing the service life of the microwave generator and the components thereof. The plasma resonator waveguide system is capable of working for longer time under a larger power, and further improves the effect of the PCVD process. The invention is simple in structure, easy to operation and convenient to refit the existing equipment.

The invention discloses a method, a system and a device for cooperative communication between micro cells. The micro cell of user equipment confirms a neighbouring micro cell of the user equipment according to measurement report information reported by the user equipment; the micro cell of the user equipment sends scheduling information about the user equipment in the micro cell to the neighbouring micro cell of the user equipment and gives an instruction that the neighbouring micro cell of the user equipment allocates time-frequency resource for the user equipment, wherein time-frequency resource identical to that of the micro cell of the user equipment can be allocated for the user equipment, or time-frequency resource allocated by the micro cell of the user equipment can be allocated for user equipment managed by the neighbouring micro cell which does not affect operation data transmission of the user equipment. Through adoption of the method, the system and the device, multiple micro cells covering the same area cooperate and transmit operation data for the user equipment, thereby preventing mutual interference.

The invention discloses a corrosion-resistant powder material capable of absorbing microwave and a preparation method thereof, wherein the powder material is a core-shell structure, the core-shell structure comprises a shell and a core, the shell is a mesoporous silicon dioxide layer, the core is magnetic metal particles, a corrosion inhibitor is filled between the shell and the core, and the particle size of the magnetic metal particles is 0.6 1 micron, is iron carbonyl and nickel carbonyl, or a composite of iron carbonyl and cobalt carbonyl, the weight ratio of iron carbonyl to nickel or cobalt is 8: 1 4: 1. The invention can effectively solve the problems of insufficient microwave absorption and deterioration of corrosion resistance of conventional coatings.

The invention discloses a cross-platform intelligent connection method based on a mobile internet. The method is realized through the following steps: a mobile terminal device installed with hypertext protocol platform software sending an application for a hypertext protocol platform, the hypertext protocol platform distributing a unique hypertext protocol IP to the mobile terminal device; the hypertext protocol service platform establishing an IPsec channel according to requests of the mobile terminal device and a connection target device, and transmitting communication data of the mobile terminal device and the connection target device to the IPsec channel; and establishing connection for the mobile terminal device and the connection target device through information of the two devices which are connected by the requests, the information being stored in a cloud end database of the hypertext protocol platform. The method can intelligently establish routing for two hand-held mobile devices under the condition that no central server performs transfer, so that P2P (point-to-point) connection is realized. Through the hypertext protocol service platform to intelligently find an optimal connection scheme, connection would not be interrupted. The method supports mainstream operating systems, and versatility is wide.