202results about How to "Avoid skipping" patented technology

The invention relates to a multi-scale seismic full-waveform inversion method based on a local adaptive convexification method. The method comprises steps: pre-processing is carried out, a zero value sequence serves as an initial value, and an initial speed model serves as a starting value; direct wave information is intercepted; forward modeling direct waves are obtained; an objective function inverted by a seismic source function is built; a direct wave residual and a direct wave residual back propagation wave field are obtained; an updating gradient and an updating direction of the seismic source function are calculated, and a step length is searched; the high-precision seismic source function obtained through inversion is outputted; attenuation time window processing is carried out; seismic data in the time window are simulated; local convexification processing and separation processing are carried out; a high-frequency component in an observation record is removed; a least square objective function is built, and a wave field residual is obtained; a residual back propagation wave field of the model space is obtained; the model updated gradient is obtained; the model updated direction is calculated, and the step length is searched; a multi-scale seismic full-waveform inversion result is outputted; and a final inversion result is outputted. The method is widely applied in the technical field of seismic exploration.

The invention is directed to a motorized cart and a hub gear motor system in which the electric motor of the system is contained within the hub casing of a front wheel of the motorized cart. The hub gear motor system provides the motorized cart with front wheel drive.

This invention relates to a semiconductor etching device, in which, the thimble device includes a thimble containing a main body and a mandril, a slot is set in the main body and plugged with the mandril and a space is set between the bottom surface of the mandril and the bottom wall of the slot and a height deformer and a position sensor are set in the space, the deformed volume of the deformer is 0.05-1.2mm, which applies an telescopic thimble to test the deformation volume of a spring contacting with a wafer when the thimble rises to test the residual charge of the wafer then puts up the wafer to finish the transmission of the manipulator.

The invention discloses a remote intelligent residual current monitoring and protection system, which comprises a three-phase residual current protection device, single-phase residual current protection devices, a detection data / control signal transmitting device, a monitoring centre and a monitoring unit, wherein the three-phase residual current protection device is arranged on a three-phase main power line outlet; the single-phase residual current protection devices are arranged on three phases of power supply lines respectively; the monitoring unit is connected with the monitoring centre and also connected with a first stage of residual current protection device; the monitoring centre determines the upper limit value of split-phase / single-phase residual current of each phase of power supply circuit and monitors / analyzes the related detection data of a next stage of residual current protection device in real time; when the residual current on a certain phase of line exceeds the upper limit value, an alarm is sent; the amplitude of the residual current of each phase of line is monitored and adjusted to ensure the balance of the three-phase residual current; and the current of the neutral earth line of a power transformer is reduced and frequent tripping of the first stage of residual current protection device is prevented, so that the operating ratio and the reliability of the power grid are improved.

The invention discloses a bus protection algorithm for realizing GIS accurate fault removing and automatic power supply recovery. The bus protection algorithm comprises the steps that bus wide-range differential current, bus small-range differential current and interval differential current are calculated respectively; faults outside a bus area and faults inside the bus area are distinguished according to actuation of a high-difference-ratio element; when the high-difference-ratio element actuates, the segment of bus on which the faults occur is determined by actuation of a low-difference-ratio element; a fault interval is determined by actuation of an interval ratio differential element; and the type of the faults is judged and the faults are responded according to the actuation situation of the high-difference-ratio element, the low-difference-ratio element and the interval ratio differential element. The beneficial effects of the bus protection algorithm are that the fault position can be accurately judged and the faults can be rapidly removed and isolated so that a situation that all connecting elements are tripped by bus protection when single interval internal faults occur can be prevented, selectivity of bus protection actuation can be guaranteed, accident scope can be reduced and system operation stability can be enhanced.

The invention relates to a protection method of a power distribution network for a coal mine. The protection method comprises the following steps of: if any section in the power distribution network is subjected to short circuit, respectively tripping the main protection detection fault outlet of a superior switch closest to a fault section, if failure current still exists after the inherent action time of a main protection tripping fault switch, showing that the fault switch refuses operating; and then tripping the intelligent backup protection direct outlet of a superior switch adjacent to the fault switch, and removing the fault. The method has the following beneficial effects: the current conditions of circuits in all levels are judged, thereby ensuring that backup protection of the superior protection drives tripping without time delay when a switch cabinet in each level refuses operating, effectively shortening the protective fault removal time of the superior switch when the fault switch refuses operating, being conductive to removing the fault rapidly, and being conductive to the safety of the whole power distribution network.

The invention discloses a code issuing tool, comprising a code issuing module, a test module, a pre-issuing module and an audit module. Each module is respectively linked with a corresponding displayinterface and a corresponding script. Each module is used for executing a corresponding operation after receiving an instruction generated after a corresponding button is triggered. Each module can only publish the code after the completion of its own processing to the next module for processing, and each module performs code processing in the order of code release module-test module-pre-release module-audit module, and only the last-level audit module can publish the code that has passed the audit. In the invention, the worker only needs to trigger the corresponding button on the display interface, the code issuing tool can execute the corresponding issuing process, the service is simple, and each module can only issue the code completed by itself to the module at the next level, and thecode issuing process can not be issued by leaping level, so that the perfection and reliability of the code issuing process are improved.

The invention belongs to the technical field of electric meter boxes and particularly relates to an IoT-based intelligent electric meter box resistant to electricity larceny and a method for using thesame. In the IoT-based intelligent electric meter box resistant to electricity larceny, a plurality of transparent glass windows are installed on a box door to observe the readings of electric energymeters. A control box is equipped therein with an inlet wire switch, a control switch, a smart terminal, an electric field acquisition module, a magnetic field acquisition module, and a monitoring device. A plurality of electric energy meters are arranged in a metering box. A plurality of user switches correspondingly connected to the electric energy meters are arranged in a user switch box. An electricity thief steals electricity by opening an electric energy meter cover or by overloading and overcurrent. The information is transmitted from the electric energy meters to the smart terminal. The smart terminal activates the corresponding smart switch to trip to prevent the user from stealing the electricity. The user switch trips in case of an overloaded or short-circuited state during normal power consumption. After the user switch trips, the user can open the user box for reclosing and transmitting the power.

The invention provides a multi-screen splicing touch control method and a system. The method comprises the following steps of: respectively reading the data of each touch screen in an asynchronous callback manner and obtaining whole-frame data through respectively carrying out packet head analysis on the data of each touch screen in the process of reading the data of each touch screen; after the whole-frame data is obtained, obtaining data volume stored in a data buffer area corresponding to the touch screen corresponding to the whole-frame data, comparing the data volume stored in the data buffer area with a preset buffer area threshold value, deleting the whole-frame data of a corresponding data buffer area queue head if the data volume is larger than or equal to the buffer area threshold value and storing the currently-obtained whole-frame data into a data buffer area queue tail; directly storing the currently-obtained whole-frame data into the data buffer area queue tail if the data volume is less than the buffer area threshold value; and respectively reading and processing the one-frame data of the data buffer area queue head on each touch screen every a preset time. The invention can solve the problems of touch time delay caused by data asynchronization and touch interrupt caused by discontinuity.

The invention provides an on-line monitoring device and method for opening and closing time of a circuit breaker. The device comprises a three-phase current sensor, a three-phase voltage sensor, an analog quantity acquisition unit, a state quantity acquisition unit, a signal processing and storage unit, a central processing unit, a display unit, an operation unit and a communication unit. The three-phase current sensor and the three-phase voltage sensor are connected with the analog quantity acquisition unit, the analog quantity acquisition unit is connected with the signal processing and storage unit, the signal processing and storage unit is connected with the central processing unit, and the state quantity acquisition unit, the display unit, the operation unit and the communication unitare connected with the central processing unit. According to the invention, online monitoring can be carried out through the monitoring device; the influence of inrush current, power transmission, abrupt change of large load, instantaneous single-phase earth faults, opening and closing of other circuit breakers and the like can be eliminated, meanwhile, the on-line monitoring device and method are not influenced by low voltage, overvoltage and load, and the monitoring time is accurate and reliable.

The invention discloses a capacitive screen intelligent tablet, comprising a complete machine, a capacitive screen, a liquid crystal display panel, and an isolator. The liquid crystal display panel is arranged between the complete machine and the capacitive screen. The complete machine comprises a power supply, a TV mainboard, a capacitive screen control panel, and liquid crystal screen driving board. The power supply is connected with the TV mainboard. The liquid crystal screen driving board is connected with the liquid crystal display panel and the TV mainboard. The capacitive screen control panel is connected with the capacitive screen. The capacitive screen control panel comprises a first interface. The TV mainboard comprises a second interface. The first interface and the second interface are connected through the isolator. Through adding the isolator, the complete machine and the capacitive screen are isolated, so that grounding interference applied on the complete machine would not be conducted to the capacitive screen, ensuring stable operation of the capacitive screen.

The invention discloses an override trip protection system and method for a coal mine power network. The override trip protection system comprise a ground power substation, a center power substation, a mining area power substation and switches, and is characterized in that a first switch and a second switch are cascaded between the ground power substation and the center power substation, a third switch and a fourth switch are cascaded between the center power substation and the mining area power substation, and the switches are respectively connected with a longitudinal differential protector.

The invention discloses an electric flexible ruler. The electric flexible rule comprises a PCB; a first gray code channel, a second gray code channel, a third gray code channel, a fourth gray code channel and a fifth gray code channel which are all connected with an electric potential brush of a trigger are arranged on the PCB, wherein the first gray code channel, the second gray code channel and the third gray code channel are each provided with a plurality of counting gray codes used for counting, and a tripping prevention code used for placing a jumping brush of the electric potential brush is arranged between every two adjacent counting gray codes; the fourth gray code channel used for serving as to define code values of the gray codes is located in the inner side of the third gray code channel; the fifth gray code channel used for serving as a zero signal output label is located in the inner side of the fourth gray code channel. By means of the electric flexible ruler, the electric potential brush can be prevented from leaking to brush the gray codes, the counting of the gray codes is more accurate, the fourth gray code channel used for preventing from leaking to brush the gray codes is further arranged, and the electric potential brush can further be prevented from leaking to brush the gray codes due to the fact that the revolving speed of the electric potential brush is too high.

The invention discloses an underground anti-override tripping system based on a radio frequency network. The underground anti-override tripping system comprises a microcomputer integrated protection device and a communication server, wherein the microcomputer integrated protection device and the communication server are networked in a radio frequency and optical fiber combination mode. System parameters of the underground anti-override tripping system based on the radio frequency network are automatically generated and downloaded through the Ethernet. The technical problem of override tripping caused by difficulty in matching of superior and subordinate relay protection current constant values of an underground distribution system is solved. The underground anti-override tripping system based on the radio frequency network has the advantages that: by automatically configuring the system parameters and setting a locking relationship of the microcomputer integrated protection device, the overload override tripping of the underground distribution system is effectively prevented, the safety and stability of operation of an underground system are guaranteed, the difficulty of underground construction is reduced, and the safety of underground constructors is guaranteed.

The invention discloses an advertisement play method and device, an advertising method and device and an advertisement system. The advertisement play method comprises that when advertisement data is received, whether advertisements in the advertisement data belong to advertisements of the time length accumulated type is determined, and if yes, timing is started when a video is started playing; and when the accumulated time length reaches a preset time length, the video is paused, and the advertisements of the time length accumulated type are played. According to the invention, when the advertisements of the time length accumulated type are played, time points when the advertisements appear are not fixed, and are only related to the accumulated time length that the user watches the video but not related to whether the user drags a progress bar; and thus, the user is prevented from skipping the advertisements of the time length accumulated type. The advertising frequency is obviously improved under the condition that the user experience is improved.

The invention provides a soft capsule detecting machine. The soft capsule detecting machine comprises a discharging device (1), a feeding device (2), a conveying device (3), a blocking material arranging mechanism (4), a vision detecting device (5), a waste removing channel assembly (6), a finished product channel assembly (7) and a machine shell (8). The soft capsule detecting machine is characterized in that the feeding device (2) comprises a feeding cover (21), a detachable rotary disc (22) and an adsorption discharging mechanism (23); the conveying device (3) is used for conveying capsules to a detection station, and the vision detecting device (5) detects the defects of the appearance, the size and the color of capsule plugs at a detection station; and a discharging guide rail of the discharging device (1) guides the capsules into a feeding through hole in the feeding cover (21) of the feeding device (2). The soft capsule detecting machine can meet the requirement for detecting the capsules of different types, washing and cleaning are easy, even and stable discharging can be carried out, and the accuracy of a detection result and the stability of detection efficiency are improved.

The invention provides a time source selecting and switching method capable of improving time service output reliability and belongs to the field of time source switching methods. The time source selecting and switching method comprises: a clock synchronization device is employed, which is provided with a plurality of input time sources and a time source processing unit; the time source processing unit selects the optimal time source according to the synchronization condition, the phase difference and the priority of each time source and switches the optimal time source to a time source for time service when the state of each time source changes; at external time source switching and time-keeping recovery stages, the time source switching is performed in a smooth tracking switching mode to ensure that the clock synchronization device can select the optimal time source according to the continuously changing dynamics of each time source; besides, continuous tracking and gradually approaching can be realized, and over-large spaced skipping can be avoided.

The invention relates to an accurate cutting and punching jump-scrap prevention mechanism which comprises an upper die and a lower die, wherein the upper die comprises an upper die seat, an upper clamping plate and a stripper which are sequentially arranged from top to bottom, the lower die comprises a lower die plate, a lower die pad and a die seat which are sequentially arranged from top to bottom, equal-height bolts, springs and an inner guiding post are arranged in the upper die, a male die is arranged in the upper clamping plate, a female die which corresponds to the male die is arranged in the lower die plate, the male die comprises a rough stamping male die and an accurate cutting male die, the female die also comprises two sets which are respectively a female die A and a female die B, the female die A corresponds to the rough stamping male die up and down, and the female die B corresponds to the accurate cutting male die up and down. Through arranging the accurate cutting and punching jump-scrap prevention mechanism, the structure of the original stamping die is greatly optimized, the jump-scrap is prevented, the dimensional accuracy of a product is improved, the mass production of the products can be realized in the stamping die within a short time, a great deal of cost is saved, and the working efficiency and market competitiveness are improved.

A continuous briquetting machine for pressing the extruded material to form extruded material board, in particular to shaving board, fiberboard, or the similar wood material board, comprises a briquetting machine lower part; a briquetting machine upper part; a feed port; a number of extruding metal bands which are annularly circulated between the briquetting machine lower part and the briquetting machine upper part; wherein a number of heatable extruding boards are arranged between the briquetting machine lower part and the briquetting machine upper part, wherein, under the condition that sticks are connected there between, the extruding metal bands are supported on the extruding boards and the feed port; the sticks are guided in the scheduled circulating paths by means of the upper and lower stick circulating device and go into the spaces between the extruding metal bands and the feed boards in the feed port region, wherein the stick circulating device has guide wheels and has stick introducing wheels in the feed port region; the sticks are guided by means of the stick chains with stick balance clearance which is circulated by the guide wheels and stick introducing wheels, wherein the stick introducing wheels have gear with tooth spaces for grasping and driving the sticks; the stick chain and the stick are circulated slantways downwards and heading the stick introducing wheels, and are inserted into the tooth spaces of the stick introducing wheels; and a slide bottom board for sticks arranged in front of the upper and / or lower stick introducing wheels. The briquetting machine is characterized in that, under the condition that admission passages are formed, at least one guide shield opposite to the slide bottom board is arranged in front of the upper and / or lower stick introducing wheels.

Techniques for targeted advertising to consumers of on-demand media content are described. When a television viewer elects to record a broadcast program, advertisements associated with the program are downloaded from the server. The advertisement is presented in conjunction with the recorded program when the user elects to watch the recorded program.

The invention discloses a cooperative office APP task management method, and relates to the field of computer technology. A calendar and a task list are integrated into the same interface, and an edited area is guaranteed to be displayed in an area concerned by a user all the time via an advanced algorithm module. The method mainly comprises the following steps: task management interface layout, interactive operation of the calendar and the task list, and edition of a task; the user selects a fuzzy time via a time control or manually inputs a period of time via a keyboard when editing the current day task, and a time management module automatically marks the task according to the time period input by the user, and after the user submits data, automatically increases or updates the task data to the current day task list of the time period; meanwhile, the user can view the task list associated with the selected date by clicking different dates on the calendar. By using a dynamic emitting control, the manner of editing data is more flexible and intuitive, and the defect of interface jump is overcome.

An apparatus and method for minimizing jumping and contact welding at a contact point includes a switch having a first contact moveable from a deactuated position of the switch to an actuated position of the switch toward a second contact and away from the The second contact moves from the actuated position of the switch back to the deactuated position of the switch. A change bracket is operable to engage the first contact and includes a trigger mechanism that contacts the first contact with the second contact and releases the first contact from the second contact. The trigger mechanism uses a switching barrier to switch between an actuated position of the switch and a deactuated position of the switch. The actuator is movable on the shift carriage to overcome the shift barrier when moving between a deactuated position of the switch and an activated position of the switch.

The invention relates to an automatic assembly method for press key support frames. The automatic assembly method is characterized in that the press key support frames are arrayed according to the required direction and slide through a guide rail to fall on a clamp sequentially; the clamp is arranged on a conveyer belt; the clamp is provided with a convex extension part; the convex extension part can lead the press key support frames sliding down away from the guide rail, position the press key on the clamp and move the clamp below a bottom plate; a flexible circuit board and a connecting seat which is combined with the press key support frames are arranged below the bottom plate; and when being pressed down, the press key support frame is forced to be clamped into the connecting seat of the press key support frame. The invention provides the efficiently automatic assembly method.

In order to enhance the picture quality of a detected area, the present invention provides a video coding apparatus. In the apparatus, a reliability indicative of the degree of coincidence of an area detected by an important area detecting section with a real important area is calculated, and a coding parameter calculating section calculates a coding parameter to be set to the detected area according to the reliability, thereby controlling the picture quality of the detected area. Consequently, a whole image has a coding bit amount which does not break the restrictions of a transmission bit rate, and a larger coding bit amount is assigned to the important area so that a picture quality thereof can be improved and a visibility can be enhanced. In addition, the picture quality is more enhanced if a probability that the detected area might be an important area is higher.

The invention discloses a method and a device for moving focal points in a digital television browser, and a digital television. According to the embodiment of the invention, after a focal point moving instruction is received, if rectangular regions occupied by the focal points are superposed, the superposed rectangular regions are partitioned, and the partitioned rectangular regions are used as focal point regions, so that the focal points can conveniently move; therefore, a phenomenon that the superposed focal points are skipped over during moving is avoided, and the superposed focal points can be selected; and the accuracy and the flexibility of movement of the focal points are improved.

A fire protection sprinkler is provided with a skipping shield having air flow passages therethrough to reduce the negative impact that the shield has on the thermal response of the sprinkler. By providing holes, slots, louvers, or mesh to the skipping shield, water from adjacent flowing sprinklers can still be blocked from impinging on the thermal element. The shield will block water but allow hot gas from the fire to flow through the shield thereby improving the response time of the thermal element.

The invention relates to a resonance restraining method for grid connection wind driven generator units. All phases at the positions, connected to a power grid, of the grid connection wind driven generator units are connected with a first electric reactor, a second electric reactor and a third reactor in series respectively. The neutral point on the side where the high voltage of the grid connection wind driven generator units is changed into the low voltage is provided with a fourth electric reactor. A fifth electric reactor and a sixth electric reactor are connected between a generator side converter and a grid side converter of a double-fed type wind driven generator unit in series, and a first filter capacitor is connected between the generator side converter and the grid side converter of the double-fed type wind driven generator unit in parallel. A seventh electric reactor and an eighth electric reactor are connected between an engine side converter and a grid side converter of a direct drive type wind driven generator unit in series, and a second filter capacitor is connected between the engine side converter and the grid side converter of the direct drive type wind driven generator unit in parallel. The operating reliability and stability of the grid connection wind driven generator units are improved with the small investment, the service life of the wind driven generator units is prolonged, and the problem that due to circuit resonance and electromagnetic wave irradiation, zero-sequence protection maloperation of a circuit protection device connected to the power grid is extremely prone to happening is well solved.

The invention provides a rotation type electric component which can well integrate when rotation axis is operated, which comprises: box body, which includes bearing part; rotation component, whose operation axis is rotatablely located on the bearing part; elastic component, which is located in the box body, and includes first cam part on the front of elasticity displacement arm part; accidented second cam part, which integrates to the first cam part; conductor plate, which comprises first conductive part to integrate to the rotation component, and incidentally rotates with the rotation component; and shell body, which includes second conductive part sliding connects to the conductor plate to output electric signals. When the operation axis rotates, the first cam part integrating to the accidented second cam part is designed to displaces in the rotation direction of the rotation component.