33results about How to "Improve effective coverage" patented technology

A wireless relay communication system and method are provided. The system includes a BS, at least one RS and subscriber terminals. The method includes: configuring a downlink relay zone and an uplink relay zone in downlink sub-frame and uplink sub-frame of physical layer frame structure of a BS, respectively, configuring a downlink relay zone and an uplink relay zone in uplink sub-frame and downlink sub-frame of physical layer frame structure of an RS, respectively, to define one or more combinations of OFDMA symbols and relay subchannels or relay timeslots for communication between the RS and BS; performing relay communication between the BS, the RS and a subscriber station. In the invention, an advanced relay mode is supported, i.e. an MSS/SS may access BS via the relay of RS, thereby broadening the effective coverage of BS, and improving the throughput of MSS/SS.

A downlink transmission method in a Coordinated Multi-Point (COMP) transmission system, a network device, and a wireless system are disclosed. The method includes: determining a downlink physical resource and a downlink mapping rule corresponding to a physical downlink channel and/or a reference signal negotiated by cooperating cells; and mapping the physical downlink channel and/or the reference signal to the downlink physical resource according to the downlink mapping rule, and sending the physical downlink channel and/or the reference signal to a User Equipment (UE). According to the method, effective coverage can be improved and the problem of mutual interference between cells can be prevented.

A time-attitude based method for decomposition and synthesis of imaging satellite observation task is disclosed. The method is characterized by comprising the following steps: (1) determining the time-orientation vector of a target according to the weft height of the target and the position of a satellite; (2) establishing an external characteristic rectangle, with a long edge parallel to a star line and including all target points, as a target region, determining a pitch angle, and calculating the characteristic vector of a region target; (3) according to the width of the satellite, dividing bands; and (4) according to the region target borders, cutting the bands to a right length. The method can intuitively and efficiently conduct target decomposition and synthesis, and more easily generate element task information input to a task planning and scheduling model. The method puts forward a concept of time-attitude, which is not only easy to understand and calculate, but also provides a unified description method for target decomposition and synthesis, and has certain operability, generality and scalability.

The present invention includes device, system, method of using and making a surveillance apparatus including a single image event activated detection module configured to collect data and a communication unit operably connected to the capture module to communicate with a remote central monitoring unit.

A ceiling-mount omnidirectional antenna for indoor distribution system of mobile communication network and a method for manufacturing the same are provided. The antenna includes: a monopole consisting of a cone part and a columnar part; a reflecting plate consisting of a cone part and a platform part; and a feed connector. The monopole and the reflecting plate are arranged in such that the tips of cone parts are opposite to each other. The signal is fed into the antenna through the feed connector and radiated outward by the monopole and the reflecting plate. In high frequency band, the maximal gain appears at about 70°, so that the signal power focuses at radiating angles of 60°˜85°. Comparing to the existing antenna, the gain of the antenna increases 4.22 dB at a radiating angle of 85° and decreases 10 dB at a radiating angle of 30°. So, the maximal permissible value of antenna aperture power of mobile communication signal in high frequency band, such as 3G, is increased; and the field strength of signal covering the edge is increased. The antenna can increase the covering range of a single antenna, increase the signal quality, and cover 2G and 3G networks in the same time so as to reduce the difficulty and the cost for building and reconstructing an indoor distribution system in 3G.

The invention discloses a networking method and device for an NB-IoT and a GSM independent antenna feeder. The method comprises the following steps: adding a 2-channel GSM antenna in an NB-IoT and GSMcommon antenna feeder network, connecting a port 1 with a transceiving opening ANT1 to form a first transceiving channel, connecting a port 2 with a transceiving opening ANT4 to form a second transceiving channel, connecting a port 3 with a receiving opening ANT2 to form a third receiving channel, and connecting a port 4 with a receiving opening ANT3 to form a fourth receiving channel, wherein the 2-channel GSM antenna comprises a first port and a second port; and disconnecting one transceiving channel and one receiving channel, and based on 2-channel GSM and a common mode RRU after channelsare disconnected, building an NB-IoT and GSM independent antenna feeder network. The embodiment of the invention can enhance effective coverage of a signal, improves signal strength and then increasesnetwork speed.

The invention provides a method for generating test cases for a fuzz tool aiming at com component derivative function parameter space and binary data. The method mainly comprises the following steps: 1, extracting com components; 2, analyzing the com components; 3, constructing the test cases; 4, tracking exception of the test cases; and 5, recording test results. Different from a method in the traditional fuzz technology that a great amount of equidistant test cases is constructed by mainly aiming at type characteristics of data, the method provided by the invention aims at the size of a space occupied by each type of data and the characteristics of binary data, and improves the effective coverage of the test cases while decreasing the number of the test cases, so as to improve the efficiency and the accuracy rate in black-box testing of the com components; and an exception tracking program is improved and the false alarm rate is reduced according to a new method for generating cases, and the testing necessity of the com components is analyzed, so that fuzz aiming at the com components can be more efficient and easier to use.

The invention discloses an organic single-crystal semiconductor structure and a preparation method thereof. The organic single-crystal semiconductor structure comprises a substrate, and an auxiliary growth layer, an electrode and an organic single-crystal semiconductor layer which are deposited on the substrate from bottom to top, and the organic single-crystal semiconductor layer is an organic semiconductor single-crystal thin film with basically unchanged morphology before and after crossing the electrode, and the organic semiconductor single-crystal thin film can realize full coverage on abottom contact type substrate with any shape and any size, so that an approximately ideal morphology on an industrial scale is obtained. The organic single-crystal semiconductor structure can be usedas a key part of an organic field effect transistor to realize rapid transmission of carriers. On the basis of the semiconductor structure, the invention further provides an organic field effect transistor device which is convenient to prepare and efficient in performance, and has a good application prospect in the field of organic photoelectricity.

The invention provides a universal locomotive radio station based on a dual-band combined communication system. According to the universal locomotive radio station, an antenna feeder unit is respectively connected to a 450MHz digital communication unit, a 400KHz digital communication unit and a satellite receiving unit; a 450MHz wireless communication unit, a 400KHz wireless communication unit andthe satellite receiving unit are connected to a main control unit; the main control unit is respectively connected to a GIS database unit, a recording unit, an interface unit and an operating terminal; and the operating terminal is connected to a printing unit. The universal locomotive radio station disclosed by the invention adopts the dual-band combined communication system in a 450MHz band anda 400KHz band, and thus the effective coverage rate of communication can be improved; and the universal locomotive radio station is based on an intelligent GIS system application technology, and achieves the purpose that the universal locomotive radio station adapts to the communication requirements of different lines and different working modes.

The invention relates to the field of fertilizer processing, in particular to a suspension type chicken manure fertilizer processing device. The technical problem to be solved by the invention is to provide the suspended chicken manure fertilizer processing device. According to the technical scheme, the suspended chicken manure fertilizer processing device comprises a supporting frame, a fixed base, a control display screen, a flat laying system and the like; and the fixed base is fixedly connected with the supporting frame. The suspension type chicken manure fertilizer processing device achieves the effects that chicken manure is spread flatly, maximization of the contact surface of paraffin and the chicken manure is guaranteed, the phenomenon that the surface layers of chicken manure particles cannot be effectively wrapped with the paraffin due to stacking of the chicken manure is avoided, suspended paraffin spraying is conducted on the spread chicken manure, and the effective coverage rate of the paraffin is further increased.

The invention discloses a polishing device and process for a ceramic tile with polishing grinding heads arranged in multiple rows. The surface of the ceramic tile is uniformly divided into a pluralityof polishing regions in a width direction of the ceramic tile; and each row of grinding heads is used for polishing one polishing region of the ceramic tile. Compared with the prior art, for the polishing device and process, a middle homogeneous region of the ceramic tile moves outward, and the edge of the ceramic tile is effectively processed; and second inhomogeneous regions of two adjacent polishing regions are overlapped to synthesize homogeneous processing on the whole surface of the ceramic tile. A beam system of the polishing device comprises at least two beams which are arranged in aceramic tile feeding direction in parallel; and at least two groups of grinding head systems are provided with a plurality of grinding heads respectively to be used for polishing the ceramic tile. After the ceramic tile is polished by the method and the device, the effective cover rate of the grinding heads can be greatly increased, omission from polishing is effectively reduced, the processing uniformity of the surface of the ceramic tile is improved, and the technical defects and problems of large occupying area of technological process, more used equipment, large consumption of a grinding apparatus, high production cost, omission from polishing, poor processing uniformity and the like in the prior art are solved.

The invention discloses a film type tube row falling film evaporation tube bundle. The film type tube row falling film evaporation tube bundle comprises a plurality of heat exchange tubes and flow guide plates; the heat exchange pipes are horizontally arranged; the plurality of heat exchange pipes are arranged in a row in parallel; the top faces and the bottom faces of the adjacent heat exchange pipes are connected through the flow guide plates; the long edges of the flow guide plates make contact with the heat exchange pipes; the short edges of the flow guide plates are vertically arranged; the flow guide plates are arranged at the bottom of the lowest heat exchange pipe; and the flow guide plates and the heat exchange pipes are made of the same material. The liquid film can completely cover the surfaces of the heat exchange tubes, and drying is avoided.

The invention relates to a ceramic composite steel pipe. The ceramic composite steel pipe comprises a ceramic lining, a transition layer and a stainless steel outer pipe. The ceramic lining is fixedlyconnected with the stainless steel outer pipe through the transition layer generated by reaction with a thermit. Multiple convex slots are fixedly formed on the inner wall of the stainless steel outer pipe. One end of each convex slot extends out of a corresponding side edge of the stainless steel outer pipe. The other end of each convex slot is located inside the stainless steel outer pipe, anda connection groove corresponding to a corresponding convex slot is formed between each convex slot and the corresponding side edge of the stainless steel outer pipe. Heat-exchange area between the steel pipe and the transition layer can be effectively increased by the convex slots; and meanwhile, improvement of firmness degree between the ceramic lining and an outer steel pipe is benefited by various fixing holes arranged in the convex slots. When the protruding convex slots and the internally-arranged connection grooves are used cooperatively, the location speed and connection firmness degree between each steel pipe can be further improved. For some non-standard components which need direction changing, wear-resistant rubber is fixed to the protruding convex slots; abrasion caused by inner cracks at steel pipe joints can be effectively avoided; and thus effective coverage of the wear-resistant lining is improved.

The invention provides a method for micropore filling by using CTAB as an inhibition additive. The CTAB is adopted as an inhibition additive, a pure copper plate is immersed in an electroplating solution to serve as an anode, a silicon wafer containing micropores is immersed in the electroplating solution to serve as a cathode, and the micropores of the silicon wafer are electroplated and filled.Compared with a traditional inhibition additive electroplating system, the filling method using the CTAB as the inhibitor has a stronger inhibition effect on the pore openings and the side walls of the micropores, is higher in transport capacity, better in electroplating filling effect and higher in efficiency, is beneficial to saving the micropore electroplating filling cost, and has great advantages in high-aspect-ratio micropore electroplating filling.

The invention discloses a mobile application control sampling method based on a sliding window and control information, which comprises the following steps of: respectively acquiring structure information of a mobile application control through functional characteristics of a mobile phone operating system and an external computer vision means, mining similar modes from a time sequence flow of the control information by using a sliding window method, and sampling the control information by using the similar modes. In this way, the purpose of sampling the controls is achieved, and when the controls of the page are clicked and traversed subsequently, the control groups with high similarity will be skipped. For an Android system, the position, the size, the control label type, the text and the like of each control are obtained by utilizing a system-level barrier-free service and a talkback function of the Android system; for an iOS system, a focusing frame and an auxiliary text generated by a VoiceOver function of the iOS system are identified by using a computer vision technology, so that the size, the position and the text information of a focused control are obtained.

The invention discloses a household networked LED combined lighting lamp, and belongs to the technical field of smart home. A purpose of the invention is to solve the problem of unreasonable wiring ofthe existing household appliances. The household networked LED combined lighting lamp comprises a chassis, and a networked control module, a lighting LED light bar, an infrared emission LED light bar, a smoke sensor, a combustible gas sensor, a temperature sensor, a humidity sensor, a voice control microphone and an external loudspeaker mounted on the chassis, wherein the networked control modulecomprises a micro-processing module, a WIFI router circuit, a power supply module and an output control electronic switch circuit, the micro-processing module comprises a voice recognition processingcircuit, a network interface circuit and a microprocessor, the networked control module further comprises a standby battery, the standby battery is used for providing a standby power supply, the OUT2port of the microprocessor outputs a 38K square wave or level 1, and the OUT 2 port of the microprocessor outputs a control coding fundamental wave or level 0. The household networked LED combined lighting lamp is used for smart home.