31results about How to "Reduce overlap rate" patented technology

A uniform light spot surface scanning device of a laser cleaning machine comprises a laser output module (10), a gauss-flat top system, a gradually-changing rotating polygonal mirror (50), a drive motor (60) and a collimation focusing lens (70). The gauss-flat top system redistributes the energy of a gaussian laser beam emitted by the laser output module (10) and compresses the diameter of the laser beam at the same time, so that a laser beam with uniform energy is formed; the laser beam irradiates the gradually-changing rotating polygonal mirror (50); the gradually-changing rotating polygonal mirror (50) is driven by the drive motor (60) to rotate so as to make the laser beam form a space angle scanning beam; the space angle scanning beam is refracted by the collimation focusing lens (70) and then forms surface light spots on an object (80) to be cleaned.

The invention discloses a wavy MoS2 nanosheet inlaid TiO2 dandelion nanosphere composite heterojunction semiconductor material. The wavy MoS2 nanosheet inlaid TiO2 dandelion nanosphere composite heterojunction semiconductor material contains MoS2 nanosheets and TiO2 dandelion nanospheres, wherein the MoS2 nanosheets penetrate through the space among nanorods on the TiO2 dandelion nanospheres uniformly and can be stably combined with gaps among the nanorods,. The invention also discloses a method for preparing the wavy MoS2 nanosheet inlaid TiO2 dandelion nanosphere composite heterojunction semiconductor material by a two-step solvent method. The wavy MoS2 nanosheet inlaid TiO2 dandelion nanosphere composite heterojunction semiconductor material and the method have the advantages that the preparation operation is simple, the yield is high and the cost is low, and the wavy MoS2 nanosheet inlaid TiO2 dandelion nanosphere composite heterojunction semiconductor material has great potential and wide application prospect in the fields of photo-catalytic industrial wastewater and field emission.

The invention relates to laser processing and in particular relates to a prismatic irregular hole underwater laser shock peening method and a device for realizing the same. The method comprises the following steps: precisely matching a matching pin of which the surface hardness value is higher than that of a workpiece with a prismatic irregular hole, putting the workpiece in an underwater opposite hole side area and performing laser shock peening; introducing incident laser beams into the prismatic irregular hole for peening the inner wall of the prismatic irregular hole by utilizing a total reflector arranged in the prismatic irregular hole, adopting large-size square light spot laser beams in a non-prismatic area, adopting small-size square light spot laser beams in gradual transition in a prismatic area, and linearly changing the sizes of the light spots perpendicular to the edge direction in the prismatic area, wherein the sizes of the light spots are smaller at positions closer to the edge. Meanwhile, a jump mode and a thickened absorption layer are matched, the laser shock peening quality is guaranteed. According to the method, hole edge collapse and a plasma shielding effect can be effectively avoided, and the method is suitable for peening the inner wall of the prismatic irregular hole with the edge angle of less than 90 degrees and a hole edge area.

The invention discloses a voice remote control method and apparatus. The voice remote control apparatus includes the following steps: receiving a voice command; performing voice identification on thevoice command, and acquiring a control command; performing ultrasonic encoding on the control command to generate an ultrasonic remote control signal; and emitting the ultrasonic remote control signalto the outside. Therefore, the voice remote control apparatus can realize voice remote control through ultrasonic wave, and can free the two hands of a user. Besides, the user does not need performing networking operation or matching operation manually, so that the operation convenience can be improved; ultrasonic communication belongs to point-to-point communication, and is higher in safety; thecoincidence rate between the ultrasonic wave and the other electromagnetic signals is lower, so that the ultrasonic wave is not easy to be influenced by the other electromagnetic signals, and the remote control stability is higher; as the ultrasonic wave is radiated and propagated in the air, the voice remote control apparatus does not need to align with the controlled equipment, so that the operation convenience is improved and multiple controlled devices can be remotely controlled conveniently; and the safety, the stability and the convenience of remote operation can be improved, and the remote control performance can be greatly improved, and the user experience can be improved.

The invention discloses an underwater imaging device and method by using a laser point for scanning. The device comprises a light source, an imaging unit and a synchronous circuit; the light source isa laser point scanning light source, and the laser point scanning light source comprises a semiconductor laser module; the imaging unit is a camera or a vidicon of a CMOS image sensor with a rollingshutter exposure function; and the whole device is placed on the same side of a shot object. According to the underwater imaging device and method in the invention, the laser point is used for scanning the light source; compared with a linear light source or a strip-shaped light source, the structure is simpler, the size is smaller, and the energy utilization rate is higher. According to the device and the method in the invention, a plurality of semiconductor lasers can be used for synthesizing a beam of laser, so that the power of the light source can be improved, and the light source is enabled to contain multiple wavelengths; a better backward scattering eliminating effect or a better color correcting effect can be achieved by changing the wavelength of the light source under differentwater qualities. According to the underwater imaging device and method in the invention, the scanning speed is higher, the power consumption is lower, the stability is higher, and the size is smaller.

The invention provides a steel tube joint. The steel tube joint comprises a main tube and branch tubes. The axes of the branch tubes intersect with the axis of the main tube. The main tube and the branch tubes are all steel tubes. The steel tube joint is characterized in that a base plate is arranged between the main tube and the branch tubes. Compared with the prior art, the steel tube joint is more reasonable in structural arrangement, overcomes defects of a traditional tubular joint, improves welding conditions of welding joints and obviously improves bearing capacity and stress states.

The invention provides a laser scanning device and scanning method capable of changing the size and morphology of a light spot at a laser focus position, and the device comprises: a laser source, a collimating lens group, a beam expanding lens group and a micro-lens array, wherein the micro-lens array has a micro-lens optical unit with N*N array arrangement and is used for carrying out the homogenization of an expanded light beam, forming uniform light intensity distribution output, and changing light spot energy into flat top distribution; a scanning galvanometer system; and a field lens system, wherein the collimating lens group is installed on a mobile platform capable of moving back and forth in the optical axis direction, the size of a light spot at a laser focus position is changed through back-and-forth movement of the mobile platform, and the laser focus is located at the center of the incident focus of the beam expanding lens group and the micro-lens array. According to the laser scanning device and the scanning method, stable light spot output with the size and shape of the light spots at the laser focus position adjustable is provided, energy distribution of the laser light spots is changed into uniform flat top distribution from traditional Gaussian distribution, and light intensity homogenization treatment is achieved.

The invention provides a user verification method and a user verification system, which is applied to a network system composed of a client and a server. The user verification method comprises the steps of displaying a verification code image when the user verification is required, wherein the verification code image comprises at least one Chinese character in the horizontal direction and at least one Chinese character in the vertical direction; receiving the Chinese character in the horizontal direction from a first input field, and receiving the Chinese character in the vertical direction from a second input field; and conducting the user verification according to the received Chinese character in the horizontal direction and the received Chinese character in the vertical direction. During the user verification process, when the received Chinese character in the horizontal direction and the received Chinese character in the vertical direction are completely the same with the Chinese character of the verification code image in the horizontal direction and the Chinese character of the verification code image in the vertical direction, the user verification is approved successfully. Due to the adoption of the technical solution of the present invention, whether the verification object is a person or a computer can be judged more accurately.

The invention relates to a method for carrying out identity recognition and registration on equipment accessing to a network. In the process method, information is obtained by operating programs in corresponding network equipment and terminals; obtained content refers to an IP (Internet Protocol) address, a physical MAC (Medium / Media Access Control), a logic MAC (Medium / Media Access Control) and other key information of the network equipment and terminals, such as identities of the serial number / type / size of an internal memory, the serial number / type / size of a CPU (Central Processing Unit), the number / type / size of a hard disk and the like; and the identities are network identity genes similar to biological genes and are important information of the identities of network members. A plurality of the key information of the network equipment and terminals can be combined together so that the probability of being coincident in combined identity information is greatly reduced; and meanwhile, the combined identity information is registered and recorded by a third party, therefore, the accurate identity recognition method is realized. Therefore, accurate identity recognition is carried out on the equipment connected in the network.

The invention relates to a digit password lock core used in safety anti-theft systems and lock products. More than two cylindrical digit wheels with the same size and shape are installed on a digit wheel shaft with a positioning pit in a section-to-section way. The digit wheels are respectively provided with an efficient point which is equal distance away from the axis. The efficient points are utilized in the following two ways: 1, the efficient points are drilled into round holes for direct use; 2, conductors are arranged in the holes, and when each digit wheel is rotated, the efficient points of the digit wheels can coincide on a same straight line. Each digit wheel is sheathed with a digital film of which the external circle surface is marked with digits 0-9 in a staggered way; and at this time, the coincidence of the efficient points and the indication of the digits constitute the core of the digit cipher lock core. The lock core is provided with a mechanical digit shift wheel, a digit shift key and an electromagnetic digit shift wheel of a digit shift device, a ball and a spring of a positioning device, a seal ring and a zero reset blade. The coincidence and staggering of the efficient points of the lock core are utilized to control the open / closed state of liquid, gas and circuit, thereby achieving the goal of controlling the open / closed state of the plunger latch.

The invention relates to the technical field of civil air defense engineering, and discloses an explosion-proof floor drain for civil air defense engineering. Two side casings are respectively mountedon the left and right sides of a main casing and communicate with the main casing, two side cylinder bodies are respectively fixedly mounted at the tops of the two side casings, two connecting pipesfixedly communicate with the two side cylinder bodies respectively, the tail ends of the two connecting pipes penetrate through the left and right sides of the main casing respectively and extend to the inner side of the main casing, two one-way air valves are mounted on the parts, located at the main casing, of the connecting pipes respectively. According to the explosion-proof floor drain for civil air defense engineering, the coincidence rate between an inner hole and an outer hole gradually decreased, so that the purpose of reducing the water discharge amount of a floor drain is achieved,meanwhile the coincidence rate between the inner hole and the outer hole is decreased, thus the weakening of shock waves by the device is gradually increased so as to achieve the effect of improving the protection of the explosion-proof floor drain, normal drainage can be conducted, harmful gas can be prevented from diffusing through underground pipelines, and thus the protection of the device during normal use is improved.

The invention discloses a mobile terminal desktop icon data change method and device, and relates to the field of mobile communication. The method comprises the following steps: obtaining an edition triggering signal which is used for representing to edit a desktop icon; starting a system broadcast which is switched to an editable mode; obtaining a selection signal which is used for representing to edit a target desktop icon; obtaining a data change manner of the target desktop icon, wherein the data change manner comprises field and / or image data change; and carrying out a field change operation on the target desktop icon according to the data change manner. According to the mobile terminal desktop icon data change method and device, the data change manner comprises field and / or image data change, and field and / or image data change operation is carried out on the target desktop icon according to the data change manner, so that the integration of the desktop icon data is realized and the optimized presentation of the desktop icon is realized.

The invention belongs to the field of nano materials, and discloses a preparation method of a carbon material loaded tubular carbon nitride photocatalyst. The photocatalyst with large specific surface area, multiple active sites, high photon-generated carrier separation and migration rate, low photon-generated carrier coincidence rate, visible light absorption red shift, high photocatalytic activity and high stability is obtained by adjusting the mass fraction of the carbon material. The preparation method comprises the following steps: S1, uniformly mixing the carbon material with sodium chloride, potassium chloride, lithium chloride and melamine, and calcining in a corundum crucible; in the step S1, the preparation method of the carbon material comprises the following steps: (1) cutting the white part of the shaddock peel into blocks, drying, soaking in a KOH solution, and freeze-drying; (2) calcining a sample in a tubular furnace, and washing the sample with HNO3 and ultrapure water until the sample is neutral to obtain a carbon material; and S2, washing the product with ultrapure water and ethanol, drying and collecting. The photocatalyst obtained by the invention promotes the improvement of the hydrogen production performance by photolysis of water, and provides a new thought for further development of efficient photocatalysts.

The invention provides a method for generating a non-fixed address code, which belongs to the field of encoding and comprises the following steps: operating a remote controller in a working state; ifthe operation triggers a preset operation condition, obtaining a state parameter of the remote controller when the preset condition is triggered; and generating a random address code corresponding tothe remote controller according to the state parameter. Different address codes with randomness are generated in real time through the current state of the remote controller; a pairing process with atarget device is completed by means of the address code; the mode of storing a preset number of address codes in advance in the prior art is abandoned, the upper limit of the number of target hosts capable of being paired with the remote controller is increased, and the probability that the availability of the target device is reduced due to unavailable pairing is reduced.

The invention relates to laser processing and in particular relates to a prismatic irregular hole underwater laser shock peening method and a device for realizing the same. The method comprises the following steps: precisely matching a matching pin of which the surface hardness value is higher than that of a workpiece with a prismatic irregular hole, putting the workpiece in an underwater opposite hole side area and performing laser shock peening; introducing incident laser beams into the prismatic irregular hole for peening the inner wall of the prismatic irregular hole by utilizing a total reflector arranged in the prismatic irregular hole, adopting large-size square light spot laser beams in a non-prismatic area, adopting small-size square light spot laser beams in gradual transition in a prismatic area, and linearly changing the sizes of the light spots perpendicular to the edge direction in the prismatic area, wherein the sizes of the light spots are smaller at positions closer to the edge. Meanwhile, a jump mode and a thickened absorption layer are matched, the laser shock peening quality is guaranteed. According to the method, hole edge collapse and a plasma shielding effect can be effectively avoided, and the method is suitable for peening the inner wall of the prismatic irregular hole with the edge angle of less than 90 degrees and a hole edge area.

The invention relates to a monitoring system and method for forming a grouting pipeline. The monitoring system comprises a plurality of forming production lines, a control terminal, a server and a client. The control terminal stores a scheduling schedule of the plurality of forming production lines, is electrically connected with the control box on each forming production line, sends the working state information of each forming production line to the server, and displays the working state information of each forming production line in a working interface form; the server is in communication connection with the control terminal, receives the working state information, sent by the control terminal, of each forming production line, and is further used for receiving a query request sent by the client and returning a query result to the client; and the client is in communication connection with the server. The method has the advantages that by increasing the number of the grouting circulation pipelines, the probability of grouting time coincidence is reduced, manual variation is reduced due to application of the monitoring system, and the scheme can effectively monitor the formed grouting time so as to reduce generation of forming bubbles.

The invention relates to the technical field of data processing, in particular to a memory-limited digital circuit parallel static learning method and system, and the method comprises the steps: scanning a digital circuit, and collecting all learning tasks needing to be learned in the digital circuit; storing the learning tasks in an array and dividing the learning tasks into a plurality of groups; creating a plurality of parallel threads, and distributing a common event queue for all the parallel threads; acquiring events excited by the learning tasks in the learning task group, and putting the events into an event queue; enabling all the threads to carry out parallel static learning on events in the event queue together; after all the threads finish one learning task group together, determining whether an unfinished learning task group exists or not, and if yes, selecting one learning task group from the unfinished learning task group for learning; otherwise, enabling all the threads to stop working. Static learning is realized in a parallel mode on the premise of occupying less memory space, and the running speed of static learning is greatly improved.

The invention discloses a TiO2-quantum-dot-and-MoS2-nanometer-flower-combined heterojunction semiconductor material comprising MoS2 nanometer flower and TiO2 nanometer particles. A large amount of the TiO2 nanometer particles are uniformly distributed on the surface of the MoS2 nanometer flower, and are well compounded on the pedals. The TiO2 nanometer particle phase is in a punctiform dense distribution. The invention also discloses a preparation method of the TiO2-quantum-dot-and-MoS2-nanometer-flower-combined heterojunction semiconductor material. According to the method, with a two-step solvothermal method, the punctiform TiO2 nanometer particles are uniformly grown on the MoS2 nanometer flower, such that the material with a good composite morphology is obtained. The method provided by the invention has the advantages of simple operation, high yield, low preparation cost, and the like. The material provided by the invention has great development and application potential in the fields of photo-catalysis industrial wastewater and field emission.

The invention discloses a method and device for scrambling code distribution. The method comprises the steps of determining to-be-distributed scrambling code cells according to the scrambling code programming sequence of cells; determining optimal candidate scrambling codes for the to-be-distributed scrambling code cells according to the set scrambling code programming avoiding principle and the adjacent region relations of the to-be-distributed scrambling code cells; distributing the optimal candidate scrambling codes to the to-be-distributed scrambling code cells; and if the number of the optimal candidate scrambling codes is plural, selecting a candidate scrambling code among the multiple optimal candidate scrambling codes and distributing the candidate scrambling code to the to-be-distributed scrambling code cells according to the correlation measurement values of the optimal candidate scrambling codes and scrambling code of a first round of cells, so as to reduce the compound code coinciding probability after scrambling code distribution and reduce same frequency interference of the adjacent cells.

A uniform light spot surface scanning device of a laser cleaning machine comprises a laser output module (10), a gauss-flat top system, a gradually-changing rotating polygonal mirror (50), a drive motor (60) and a collimation focusing lens (70). The gauss-flat top system redistributes the energy of a gaussian laser beam emitted by the laser output module (10) and compresses the diameter of the laser beam at the same time, so that a laser beam with uniform energy is formed; the laser beam irradiates the gradually-changing rotating polygonal mirror (50); the gradually-changing rotating polygonal mirror (50) is driven by the drive motor (60) to rotate so as to make the laser beam form a space angle scanning beam; the space angle scanning beam is refracted by the collimation focusing lens (70) and then forms surface light spots on an object (80) to be cleaned.

Disclosed is a cover of a combined type heat collecting tile. The cover and a grooved seat (1) are matched with each other to form the combined type heat collecting tile. The cover (2) specifically comprises an upper cover (201) and a lower cover (202); cavities are respectively arranged in the middle of the upper cover (201) and the middle of the lower cover (202), and the upper cover (201) and the lower cover (202) form a double-layer structure; and the upper cover (201) and the lower cover (202) are light-transmittance structural members specifically. The cover of the combined type heat collecting tile has the advantages that a combination form of the cover and a building roof heat collecting system is different from a combination form in the prior art, and an overlapping ratio among covers is low; high construction quality can be achieved and a good technical effect can be realized by a simple construction scheme during construction, requirements on construction personnel are obviously reduced, the labor cost is greatly reduced, and the construction efficiency is improved; and accordingly the cover has expectable huge economical value and social value.

The invention discloses a method and system for management of a dynamic graphic password. The method comprises the steps that a client side generates a total-element dynamic factor list according to dynamic graphic password management strategies from a management server, wherein the dynamic graphic password management strategies comprise a password content strategy, a password format strategy, a password level strategy and a password prompt strategy; and the dynamic graphic password is input into the full-element dynamic factor list according to the dynamic graphic password management strategies. The password management strategies are set for the dynamic graphic password, so that the risk in a high coincidence of the graphic passwords can be controlled effectively; the problem of low safety of the graphic password caused by the too simple dynamic graphic password input by a user can be avoided; a safety level of a dynamic graphic password authentication system can be increased; and further, overall safety and stability of the system can be ensured.

The invention provides a steel tube joint. The steel tube joint comprises a main tube and branch tubes. The axes of the branch tubes intersect with the axis of the main tube. The main tube and the branch tubes are all steel tubes. The steel tube joint is characterized in that a base plate is arranged between the main tube and the branch tubes. Compared with the prior art, the steel tube joint is more reasonable in structural arrangement, overcomes defects of a traditional tubular joint, improves welding conditions of welding joints and obviously improves bearing capacity and stress states.

The invention discloses an underwater imaging device and method using laser point scanning. The device includes a light source, an imaging unit and a synchronous circuit; the light source is a laser point scanning light source, and the laser point scanning light source includes A semiconductor laser module; the imaging unit is a camera or video camera with a CMOS image sensor with a rolling shutter exposure function; the whole set of devices is placed on the same side of the object to be photographed. The present invention uses a laser point scanning light source, which has a simpler structure, smaller volume, and higher energy utilization rate than a linear light source or a strip light source. The present invention can use multiple semiconductor lasers to synthesize a beam of laser light, which can not only increase the power of the light source, but also make the light source contain multiple wavelengths, and achieve better backscattering elimination effect by changing the wavelength of the light source under different water qualities, or Color correction effect. The invention has higher scanning speed, lower power consumption, higher stability and smaller volume.

The invention discloses a seed node determination method and system based on random walk. The method comprises the steps of firstly, obtaining network structure and node neighbor information accordingto original data in a network; secondly, determining the required number and random walk parameters of seed nodes according to the information; then randomly walking from each node in the current network, and sequentially obtaining the first seed node to the kth seed node; and finally forming a seed node set by utilizing the k seed nodes. The system comprises a network structure and node neighborinformation determination module, a parameter determination module, a random walk module and a seed node combination acquisition module. According to the invention, the probability that the network ranges of two nodes coincide with each other can be reduced, and the accuracy of judging the node with the maximum influence is effectively improved.

The present invention discloses a wave-MoS2 nanosheet embedded dandelion TiO2 composite nanospheres heterojunction semiconductor material, said sheet material comprises MoS2 nano-TiO2 dandelion and nanospheres; wherein the MoS2 nano TiO2 sheet uniformly throughout the nanosphere dandelion nanorods on the middle, and stably associated with a gap between the nano rod. The present invention also discloses a method for preparing nano-sheet obtained through a two-wave MoS2 solvothermal mosaic dandelion TiO2 composite nanospheres heterojunction semiconductor material. Preparation of the present invention is simple operation, high output, and low cost. Material of the invention has great development potential and applications in the field of wastewater and industrial catalysis field emission light.