200results about How to "Avoid skipping" patented technology

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 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.

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.

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.

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 discloses a front augmentation reverse device used for a motor tricycle. The front augmentation reverse device comprises a reverse shell with a reverse mechanism. The reverse shell is provided with a pedal connected with the reverse mechanism; one end of the reverse shell is connected with an augmentation shell with an end cover; an augmentation mechanism is arranged in the augmentation shell; the augmentation shell is connected with an augmentation shift seat; the augmentation shift seat is provided with a shift shaft passing through the augmentation shift seat; one end of the shift shaft is provided with a shift arm; the other end of the shift shaft is provided with an augmentation pedal; the shift arm is connected with the augmentation mechanism; the augmentation pedal and the pedal are located at the same side. The front augmentation reverse device disclosed by the invention has the advantages that the structural design is skillful, control is accurate, and reverse and augmentation are accurate and reliable; by adopting the front augmentation reverse device disclosed by the invention, the trip stop phenomenon can be effectively prevented, and therefore, not only is the augmentation accuracy improved but also the running safety is enhanced, and an accident is prevented.

The invention discloses an electric leakage protection method for a coal mine based on a current principle of a compensation grounding reactance branch. In the method, in a normal state, the size of grounding impedance of a grounding branch is obtained according to a zero-sequence voltage during operation of a non-grounding system and a zero-sequence current of the grounding reactance branch; the grounding impedance of the grounding branch is sent to all nodes of the next class of the same voltage class in real time through a communication network; and when a grounding failure occurs, because the zero-sequence voltages of systems of the same voltage class are the same, the current of the grounding reactance branch is compensated by a corresponding algorithm, and a current distribution relation through the reactance or arc suppression coil grounding system is equivalent to the non-grounding system, so that grounding wire selection or electric leakage protection is realized. By the method, the defects of the conventional underground electric leakage protection method are overcome, and the sensitivity and selectivity of grounding protection and electric leakage protection can be effectively improved.