2090results about How to "Guaranteed synchronicity" patented technology

The invention provides a four-point leveling method of a platform. The method comprises the following steps that: legs extend out to touch a ground, rough regulation is performed in a large dip angle range, the legs stretch to a predetermined height, and fine regulation is carried out in a small dip angle range. The invention also provides a four-point leveling system of a platform, and the system comprises locking sleeve hydraulic legs (7)-(10), legs in-position inductors (19)-(22), a display and control combiner (30), a leveling controller (31), a hydraulic valve set (32), a pressure detection group (33) and a horizontal angle sensor (34). The system is simple in structure and control logic, the risk of side overturning in a control process is avoided, and the frequency of leveling is reduced.

The invention relates to a battery management system performance test platform and a testing method based on semi-physical simulation and belongs to the field of systems. According to the battery management system performance test platform and the testing method based on semi-physical simulation, the problems existing in the aspects of effectiveness, practicality, accuracy, generality and comprehensiveness of an existing battery management system testing device and method are solved. A BMS to be tested and a simulation control and emulating unit of the test platform are connected with a CAN bus. A signal output end of an insulation resistance testing device, a signal output end of an insulation voltage resistant testing device, a signal output end of a 24-channel single-body voltage simulator, a signal output end of a high-voltage source, a signal output end of a current source and current reversing module, a signal output end of a high-accuracy temperature environment box, a signal output end of an insulation resistance simulator and a signal output end of a direct current power source are respectively connected with corresponding signal input ends of the BMS to be tested. The BMS to be tested is arranged in a high-low-temperature operational testing box. The testing method comprises the steps of safety testing and the comprehensive testing of state parameter measuring accuracy, SOC estimating accuracy, a battery fault diagnostic function, a heat management function and environment adapting performance and is used for testing the battery management system.

The invention discloses a method and a device for testing the overall performance of an intelligent transformer substation. The method comprises the following steps of: by taking a secondary system of the intelligent transformer substation as a check object, checking a combination unit and a network switch of the intelligent transformer substation; by taking a primary main connecting wire of the intelligent transformer substation, and a line and a power supply which are linearly connected with the primary main connecting wire as objects, establishing a transformer substation simulation model; according to configuration and test requirements of an electronic transformer and switching equipment of the intelligent transformer substation, arranging an acquirer simulator and a switch simulator; by using a numerical value simulation method, acquiring a time domain simulation result of an object system; and under the control of a test control system, synchronously inputting test signals of the acquirer simulator into the combination unit, and uploading an intelligent operation box command which is received by the switch simulator to the test control system, so that checking of the functional accuracy of the secondary system of the intelligent transformer substation is finished. Based on a numerical value simulation technology, a wireless transmission technology and a network exchange technology, the invention has a true and reliable test result by validation.

The invention discloses a carton filling and stacking all-in-one machine. The carton filling and stacking all-in-one machine is characterized by comprising a carton conveying line and a storage device, wherein the head portion of the carton conveying line is connected with one side of a carton alignment device; the storage device is connected with one side of a carton filling station through an unpacking forming mechanism; the other side of the carton filling station is connected with one side of a carton strutting device; the other side of the carton alignment device is provided with a robot body; the robot body is provided with a carton filling and stacking grasp structure; a carton clamping and conveying device is arranged on the other side of the carton strutting device and connected with a carton sealing device; a carton labeling station is arranged on one side of the carton sealing device; a first tray and a second tray are arranged on one side of the carton labeling station. The functions of existing single machines are completely integrated on one machine, stations are linked tightly, the structure is compact, and operation is easy. The carton filling and stacking all-in-one machine is suitable for various specifications, stable in performance, high in efficiency and capable of greatly reducing labor cost.

The invention discloses a splicing display wall, which is used for displaying a video signal provided by a computing terminal; the splicing display wall comprises a plurality of display units; each display unit comprises a multimedia system and a display system; the multimedia system comprises a processing module and a wired/wireless network transmission module connected with the processing module; the processing module is connected with the display system; the computing terminal is connected with the wired/wireless network transmission module of each display unit in a communication manner so as to form network; the computing terminal distributes independent IP or ID to each display unit; the processing module of each display unit respectively receives independent video picture information which is distributed to the corresponding IP or ID by the computing terminal; and the processing module of each display unit sends the independent video picture information to a display system of the corresponding display unit so as to process projection display.

The disclosed method for synchronizing OFDM signal frequency and estimating channel type comprises: obtaining the coarse position and decimal frequency-offset estimation for OFDM signal; correcting the frequency-offset; reordering local or received frequency-domain training sequence; searching the coarse integer frequency-offset; fine searching the integer frequency- offset to obtain the integer frequency-offset estimation, OFDM signal position estimation, and the effective channel position. This invention reduces search operation time, and can ensure synchronization effect.

The invention relates to a fiber mesh tape-wound and reinforced composite pipe, a preparation process and a device, belonging to the technical field of forming processes of composite pipes. The composite pipe comprises an inner-layer core pipe and a post-coated layer, as well as a fiber mesh tape arranged between two layers, wherein the inner-layer core pipe is extruded by a core pipe extruding machine, the adhesive resin fiber mesh tape is heated through a post-heating box, and the composite pipe is finally obtained by traction through a post-traction machine, sizing through a vacuum spraying and sizing box and the like. According to the composite pipe disclosed by the invention, the technology is adopted, the preparation process is simple, the existing tape plastic covering treatment process and the composite pipe forming process are combined into a whole, the number of workers for production is reduced, and the degree of automation is improved; furthermore, the used device is a conventional device, and the cost is reduced; and in addition, adhesive resin is firstly coated on the outer surface of the core pipe, and the plain woven fiber mesh tape is further wounded, so that the interface problem in the pipe is effectively solved, the mechanical properties of the pipe are upgraded and the stability of the pipe during long-term use is also improved.

The invention provides an audio data transmission method between double wireless earphones, and the double wireless earphones. The method comprises the following steps: a first wireless earphone performs data link with a wireless communication module of an audio player through a first wireless communication module to receive audio data; when the first wireless communication module receives first frame of audio data, the first wireless communication module inserts a playing starting time in an audio data packet; the audio data packet carrying the playing starting time is decoded and is divided into two paths of sound channel data, wherein one path of sound channel data outputs audio, and the other path of sound channel data is encoded; a second wireless communication module of the second wireless earphone receives the encoded audio data packet; the second wireless communication module of the second wireless earphone controls a playing starting time point according to the playing starting time in the encoded audio data packet. According to the audio data transmission method, the sound of the two earphones in wireless communication link reduces the blockage and generates no drift with time by means of wireless communication protocol extension and delay control.

The invention discloses a mechanical arm for clamping cans. The mechanical arm for clamping cans is used for transferring cans efficiently and stably. The mechanical arm for clamping cans comprises an arm frame. Arm claws are symmetrically hinged to the arm frame and used for clamping the opposite sides of the cans. The arm frame is connected with a pressing rod located on the symmetrical line of the two arm claws in a sliding mode. A clamping portion of the pressing rod is located between the two arm claws so as to correspond to the side walls of the cans. The two sides of the pressing rod are provided with limiting grooves respectively. Rocking bars fixedly connected to the two arm claws are embedded into the limiting grooves to be driven to rotate. A telescopic air cylinder is arranged beside a drive portion, opposite to the clamping portion, on the pressing rod, and a piston rod of the telescopic air cylinder is located on the symmetrical line of the two arm claws. According to the mechanical arm for clamping cans, the two arm claws and the clamping portion of the pressing rod can conduct three-point clamping on the cans at the same time, and stable clamping can be achieved, clamping and loosening of the arm claws can be controlled automatically, and the mechanical arm for clamping cans is very convenient to operate.

The invention embodiment provides a data synchronization method which comprises data update records that the data synchronization center obtains from each operation and the corresponding marks for successful update of operational data items in each data update record. The method includes the following steps: the data synchronization center inter-compares each update record to find out the data item that only is contained by some operation data update records and not by other operations; the other operations are objective operations; the data synchronization center sends a notification of updating the content of the data item to the objective operations, wherein the notification carries the updated data content of the data item obtained by the data synchronization; the objective operations update the saved data content of the data item after receiving the notification. The invention embodiment further provides a synchronization device. The technical proposal of the invention embodiment can as far as possible guarantee the data content synchronization of the data item which needs to be maintained synchronization by each operation.

The invention discloses a hoisting system and a hoisting construction method for large steel corridor trusses. The hoisting system comprises lifting points, hanging points and jack lifting equipment. The jack lifting equipment is mounted between the lifting points and the hanging points, the lifting points comprise first lifting frames and second lifting frames, the first lifting frames are connected with first main structures, the second lifting frames are connected with second main structures, four embedded steel beams which have equal heights and are parallelly arranged are arranged in the two lifting frames of each lifting point, the lifting points are arranged at the ends of the embedded steel beams, two box-shaped brackets are respectively welded on two sides of each beam body of each lifting point, a jack is mounted on each box-shaped bracket, and each torsion-resistant steel beam is welded between the two corresponding box-shaped brackets on the inner sides of the beam bodies of the corresponding lifting points; the four corresponding hanging points which vertically correspond to the lifting points on a frame are arranged on each steel corridor truss, and steel strands penetrate the box-shaped brackets from top to bottom and are fixed by the aid of anchors after descending and penetrating the hanging points. Each large steel corridor truss can be synchronously lifted by the aid of the four corresponding hanging points during construction. The hoisting system and the hoisting construction method have the advantages that the hoisting system is reasonable in design and easy to operate, and problems of large occupied land areas, heavy dead weights and poor balance in existing large steel corridor truss hoisting procedures can be effectively solved by the aid of the hoisting system and the hoisting construction method.

The invention relates to a material micro-mechanical property biaxial tension-fatigue test system and a test method thereof, and belongs to the field of precise scientific instruments. The test method is characterized in that orthogonal tensile load is applied to a test piece to make two mutually vertical tensions exist in one plane, and fatigue load can also be applied to the test piece on the basis of the tensile load in order to research the micro-mechanical properties of a material under different load forms and load sizes. The system is composed of a precise loading-transmitting unit, a fatigue unit, a mechanics and deformation signal detection unit, and a test piece clamping unit. The test system has the advantages of novel and compact structure, respective realization of uniaxial tension test, biaxial tension test, uniaxial tension-fatigue test and biaxial tension-fatigue test, good compatibility with an optical microscope, and dynamic research of the relationship between the microstructure of the material and the deformation damage mechanism under tension-fatigue load conditions.

The invention discloses a transfer robot for a warehousing stereoscopic garage. The transfer robot is characterized by comprising traveling wheels for moving in the front-back directions, moving driving mechanisms, a supporting trolley underframe, a lifting mechanism and retractable forked type automatic centering mechanisms. The moving driving mechanisms include a front moving driving mechanism and a rear moving driving mechanism and are respectively fixedly connected with two ends of the supporting trolley underframe, and the traveling wheels for moving in the front-back directions can be driven to rotate, so that the transfer robot can move in the front-back directions; the lifting mechanism comprises lifting frames, an electric push rod, gear cases, transmission racks and lifting guide columns, the electric push rod is fixedly connected with the transmission racks, gears in the three gear cases can be driven, and lifting racks further can be driven, so that the lifting frames can ascend and descend; front comb frames and rear comb frames of the automatic centering mechanisms can be driven by driving motors, chain transmission mechanisms, gear transmissions and retractable racks to be stretched out and drawn back, so that parking spaces can be centered, and centering combs can be stretched out and drawn back. The transfer robot has the advantages that the transfer robot is in a retractable forked type transfer structural design, accordingly, the utilization rate of clear spaces of the stereoscopic garage can be increased, the quantity of equipment can be reduced, and the service cost can be lowered.

The invention discloses a single-drive synchronous unfolding mechanism provided with multiple folding control planes. Each control plane of a traditional small guided missile is independently driven by a torsion spring to be unfolded, synchronism is difficultly ensured, and the adopted unfolding mechanism enable the radial size of the guided missile to be large during folding. The single-drive synchronous unfolding mechanism comprises a cabin body, an actuator cylinder, a connecting rod and four unfolding mechanisms, wherein an actuator cylinder installing seat is fixed to the cabin, the actuator cylinder is connected with an actuator cylinder installing seat sliding pair, four actuator cylinder convex lugs are evenly distributed on the actuator cylinder, each actuator cylinder convex lug is hinged to the inner end of one connecting rod, and the outer ends of the four connecting rods extend out of installing holes formed in the unfolding mechanism respectively and are hinged to slide blocks of the corresponding unfolding mechanism. The unfolding mechanism comprises a rudder stick, the slide blocks, lug pieces, a middle rudder, a rudder tip, connecting rods and a spring locking mechanism, wherein the spring locking mechanism is used for locking the slide blocks and a rudder shaft. The transverse size of a missile body is effectively decreased during control plane folding. The controllability and synchronism in the unfolding process of the four control planes are ensured through driving of the single actuator cylinder.

The invention discloses a novel energy source water mixing and stirring device, which comprises a base, wherein the upper side wall of the base is provided with a stirring box in an inserted manner; the upper side wall of the base is provided with a placing box; the placing box is sleeved on the outer side of the stirring box; a fixing plate is arranged between the inner walls of the placing box;a fixing block is inserted on the fixing plate; a threaded opening is formed in the fixing block; a threaded rod is inserted in the threaded opening; the outer wall of the threaded rod is provided with external screw threads matched with the inner wall of the threaded opening; a servo motor is arranged in the placing box; a driving motor of the servo motor is fixedly connected with the upper end of the threaded rod; the lower end of the threaded rod penetrates through the upper side wall of the stirring box and extends to the inside of the stirring box; one end, positioned inside the stirringbox, of the threaded rod is provided with a plurality of stirring blades in a sleeved manner. Through the vertical movement of the stirring blades and the left and right pushing of a push plate, the stirring effect during the novel energy source water production can be improved; the structure is simple; convenience and practicability are realized.

The execution mode of the invention discloses a method for coding data, which is to add additional synchronous heads to data subjected to line coding and FEC coding and then send the data through framing. The execution mode of the invention also provides a corresponding method for decoding the data, a data coder and a data decoder. With the addition of redundant information used for synchronization, the execution mode of the invention can also ensure the synchronous performance of a transmission system under the condition that the line coding selects an algorithm with smaller redundancy; besides, the additionally added synchronous heads do not take part in the FEC coding computation to ensure that the coding gain of the FEC is not affected.

The invention relates to a mobile video playing method for remote instruction, which based on the mobile video playing system. The mobile video playing system comprises a storage module, a user communication module, a video switching module, a video synchronization module and a video protocol switching module, wherein the storage module stores course video, the user communication module is connected with a user terminal, when the user communication module receives a playing mode switching command from the user terminal, the video switching module switches the current course video into target course video according to information related to the target playing mode, the video synchronization module synchronizes the playing position of the target course video with the current playing position of the current course video according to information of the current playing position, which is related to the current course video, and the video protocol switching module switches a protocol used by playing the current video according to the condition that the current video is played successfully. According to the invention, more course seeing mode options can be provided for a user, and further better use experiences are provided.