109 results about "Reset button" patented technology

The utility model relates to the field of low-voltage electric appliances, in particular to a power supply control mechanism, which comprises a reset button, a tripping rod, a tripper, a control module and a switch contact system. When the reset button is at the hasp position or the release position, the switch contact system is switched on or switched off; a switch moving contact mechanism of the switch contact system comprises a contact support, a switch moving contact and a switch moving contact spring; in the process that the reset button moves to the hasp position, the switch moving contact mechanism is firstly driven to move to enable the switch moving contact to be in initial contact with the switch static contact, and then the contact support and the switch moving contact are driven to move relatively to enable the switch moving contact spring to store energy; in the process that the reset button moves to the tripping position, the switch moving contact spring releases energy to enable the switch moving contact and the contact support to recover limiting fit; according to the power supply control mechanism, the current-carrying capability and the arc-resistant capability of the switch contact system are good.

The invention provides an electrical button, which has a accommodating groove with a accommodating cavity, an elastic fixing member and a rigid pressing member are arranged on the accommodating groove; the elastic fixing member has an upper ring cover and a lower ring cover, forming a first clamping groove; the upper ring cover and the lower ring cover The outer periphery of the ring cover is connected by the cap wall, and the lower end of the cap wall is clamped in the connecting groove of the side wall of the receiving groove; the outer periphery of the lower end of the cap wall is provided with an upper fixing edge and a lower fixing edge to form a second clamping groove; The first clamping plate in the first clamping groove, the first clamping plate is provided with a pressing plate; the first clamping plate is provided with a guide post, and the lower end of the guide post is provided with a moving contact; the bottom surface of the receiving cavity is provided with a first static contact and the second static contact; the outer guide post is provided with an elastic piece, the upper end of the elastic piece is provided with an upper fixed end, and the lower end is set with a lower fixed end; the upper fixed end is clamped in the upper fixing groove of the first clamping plate, and the lower fixed end is clamped Connected to the lower fixing groove in the receiving cavity. The invention realizes double reset through the cap wall and the elastic member, so as to avoid the push button from being dead; the sealing performance is good, and dust and water are prevented from entering.

The invention discloses a PLC-based optical cable sheath bump on-line detection alarm method and system, and the method comprises the steps: presetting a permissible outer diameter error, enabling an optical cable sheath to enter a bump test device center through a cable stabilizing device after the optical cable sheath is extruded and cooled, resetting the optical cable through a meter length reset button when the optical cable is normal and meets the requirements, and providing a trigger signal to obtain a standard size, effective optical cable detection is started, the defect detector feeds back data of the detected cable diameter to the field PLC in real time, the data is compared with a permitted error range limit value for calculation, a bulge alarm pulse is sent out when the data exceed an upper limit, a narrow-neck alarm pulse signal is sent out when the data is smaller than a lower limit, then the data are transmitted to the main control PLC through the field PLC, the meter counting length is locked, and the defect position is determined; and complete data of the whole optical cable is reserved. Through the mode, the instantaneous defects on the surface of the optical cable can be captured in real time, missing detection caused by response lag or overlarge sampling interval is avoided, accurate synchronization of defect positions and meter counting information is achieved, and accurate and comprehensive quality monitoring under high-speed production is guaranteed.

The utility model relates to the field of low-voltage electric appliances, in particular to a power supply control mechanism, a reset button of the power supply control mechanism is in hasp fit with a tripping rod and in transmission fit with a tripper, a control module is electrically connected with the tripper through a connecting circuit, and a switch contact system is connected in series in the connecting circuit; when the reset button is at the hasp position / tripping position, the switch contact system is switched on / off; in the switch contact system, a switch moving contact mechanism is linked with a reset button, and a switch static contact is provided with a first position and a second position. In the process that the reset button moves to the hasp position, the switch moving contact mechanism is firstly driven to move to make initial contact with the switch static contact located at the first position, and then the switch static contact is driven to move to the second position through the switch moving contact mechanism. When the reset button moves to the tripping position, the switch static contact is reset to the first position; according to the power supply control mechanism, the current-carrying capability and the arc-resistant capability of the switch contact system are good.

The invention relates to the technical field of power system energy storage equipment testing, in particular to a small and medium-sized industrial and commercial energy storage cabinet twin-trawling testing system which comprises a main loop, a secondary control loop and an anti-countercurrent detection unit, the main loop comprises double testing loops and four sets of alternating current contactors, and multi-machine twin-trawling testing frameworks such as one-to-one, one-trawling-two and one-trawling-three can be flexibly combined; independent switching between grid connection and grid disconnection is supported, the secondary control loop comprises a button with a lamp and a grouping reset button, and the countercurrent prevention detection unit detects the energy flow direction in real time through an intelligent electric meter and a current sensor and has a mains supply charging function. According to the test system, through a double-loop parallel test architecture and a multi-machine flexible combination design, the system can be synchronously butted with multiple energy storage cabinets to carry out parallel test, the test efficiency can be improved, and a safety system with anti-countercurrent detection, rapid mode switching and precise control protection guarantees the test safety; the arrangement of the standardized terminal and the button with the lamp simplifies the operation difficulty, and reduces the test threshold.

The technical scheme belongs to the technical field of circuit breakers, and particularly relates to a button tripping structure of a circuit breaker, which comprises a shell, a short-circuiting device, a tripper and a testing mechanism, the testing mechanism forms a loop to attract an armature after being electrified, the tripping structure is arranged in the shell and is linked with the testing mechanism, and the button tripping structure comprises a reset button, a linkage rod, an elastic piece and the armature. The reset button slides at a button opening in the side wall of the shell and is provided with a clamping part; the other end of the linkage rod penetrates through the through hole of the shell and is connected with the short-circuiting device; the elastic piece abuts against the reset button and the inner wall of the shell, so that the reset button tends to move towards the linkage rod, the armature is hinged to the interior of the shell, a lock catch protrusion is arranged and can be switched between a first position and a second position around a shaft, at the beginning, the armature is opened at the first position, and a clamping part of the lock catch protrusion limits the reset button. When the circuit breaker is released, the lock catch protrusion is released from the clamping portion, the elastic piece pushes the reset button to slide to the button opening, the linkage rod moves along with the reset button to release the circuit breaker, and releasing is smooth and efficient.

1. The name of the design product: self-service car washing integrated electric control box. 2. The use of the design product: to centrally install, manage and protect the core control unit of the car washing site (including network controller, TTS voice broadcaster), electrical accessories (circuit breaker, leakage protector, etc.) and external device interface (for connecting camera, roller shutter door control box, display screen, reset button, etc.). It provides power distribution and control, short circuit and leakage protection, network communication, voice prompt and remote management functions for all devices, and is the key hardware carrier to realize intelligent and networked operation of car washing sites. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The application discloses a kind of forming filter rod box traceability device and method, wherein method includes: starting reproduction, pressing reset button, when manual filling is completed, start disc unloading machine, second proximity switch is at low potential, generates disc unloading machine material signal, the disc unloading machine material signal triggers a track double stacker dispatching system distribution tray, and the information of filter rod transmitter group, tray, physical location and forming machine group is obtained according to the task list of track double stacker dispatching system by control system;The controller reads out the information of filter rod box about to enter disc unloading machine by second electronic tag reader, obtains the position of filter rod box in tray;The controller obtains the number of filter rod box in the filter rod box that is emitted in tray and the number of filter rod in the filter rod box that is emitted by photoelectric switch.The technical content disclosed by the application can quickly locate the specific position of defective filter rod box in which tray and forming machine.

The application discloses a grounding fault circuit breaker with automatic monitoring function, comprising a grounding fault circuit breaking module, an automatic monitoring circuit and an automatic and manual leakage detection circuit. After a reset button RESET is pressed and a test button TEST is pressed, when the tripping time of the grounding fault circuit breaker exceeds a set threshold, the MCU determines that the breaking is overtime, a discontinuous voltage is output from the 5th pin of the MCU, and at this time, a life termination alarm lamp R presents a flashing red alarm lamp. Compared with the prior art, the application solves the problem that the existing grounding fault circuit breaker cannot monitor whether the tripping time is normal.

This invention discloses an engineering machinery with a tilting ladder and a control method for the tilting ladder. The engineering machinery includes: a mechanical body, a ladder rotatably mounted on the mechanical body, and a surround view system. The mechanical body is equipped with a first controller and a second controller. The first controller is used to acquire information from an upward or downward limit sensor, parking lights, and gear position, and determines whether to disable the upward or downward self-reset button and activate the surround view system based on the acquired information. The second controller responds to a no-obstacle signal sent by the surround view system and a signal indicating that the downward or upward self-reset button has been activated, controlling the ladder to tilt down to a preset distance from the ground or tilt upward. This invention fully considers the situation of obstacles encountered in the ladder's movement area and the ladder's adaptability to different ground heights, improving the safety of the ladder's tilting operation and reducing the risk of damage during the downward tilting process.

The application provides a relay protection secondary circuit plunger voltage measurement training device, which comprises a portable training device body and a control circuit arranged in the training device body; the control circuit comprises a tripping circuit for simulating a tripping state and a closing circuit for simulating a closing state; in the simulation circuit, an intermediate relay is connected in series with an auxiliary contact of a reset button, two micro switches are connected in series at the upper and lower ends of the plunger respectively; the reset button and the micro switch connected in series at the upper end of the plunger are connected with one end of a change-over switch, the other end of the change-over switch is connected with a negative pole of a power supply through an intermediate relay coil, the intermediate relay and the micro switch connected in series at the lower end of the plunger are connected with a positive pole of the power supply. The application can realize portable training, and can help operation personnel to clearly master the plunger potential of the protection device of the circuit breaker under different conditions, and help to prevent the plunger misoperation and omission from the source.

The application discloses a small integrated portable relay protection test teaching device and a use method thereof. The device comprises a box body, a reset button and a reclosing mode switching handle are arranged on the front side of the box body, a rectifier bridge and a line differential protection device are arranged in the box body, the operation surface and the display surface of the line differential protection device are located on the front side of the box body, a bottom protection plate is arranged at the bottom of the box body, a plurality of universal wheels are arranged at the bottom of the bottom protection plate, a front protection plate is hingedly connected to the bottom protection plate and arranged on the front side of the box body, a rear protection plate is hingedly connected to the bottom protection plate and arranged on the rear side of the box body, a top protection plate is arranged above the box body, the front side of the top protection plate is hingedly connected to the front protection plate, and the rear side of the top protection plate is hingedly connected to the rear protection plate. A first positioning assembly is arranged between the front protection plate and the top protection plate. A second positioning assembly is arranged between the top protection plate and the rear protection plate. A connecting mechanism in a separated state is arranged between the box body and the front protection plate. The device has the advantages of being not prone to faults and convenient to use.

The utility model relates to the technical field of excitation systems, in particular to an automatic field suppression device and an excitation system, comprising a primary excitation power supply which is electrically connected with a generator rotor according to a current output direction; the de-excitation loop comprises a de-excitation switch and a de-excitation resistor which are sequentially connected between the positive electrode and the negative electrode of the primary excitation power supply, and the de-excitation resistor is connected with the generator rotor in parallel; and the overvoltage protection loop is connected in parallel with the de-excitation resistor and comprises an overvoltage jumper and an overvoltage resistor which are connected in sequence. According to the utility model, the primary excitation power supply, the field suppression circuit and the overvoltage protection circuit are used in cooperation, overvoltage protection can be provided for the field suppression circuit, the reset button is used in cooperation with the remote / local control module, manual reset is realized, and the problem of remote and local control switching is solved.

A portable, open-type clamp-on non-invasive ammeter device (1) is capable of determining the production status of industrial machines by acquiring and analyzing current measurement samples. Data and parameters are analyzed and transmitted via the Internet by an embedded printed circuit board (PCB) and its components (48). Production status refers to the activities the machine is currently engaged in. Users can pre-define a list of production status names and enter their corresponding current threshold limits. The device (1) is responsible for comparing current measurements with these pre-determined threshold limits to determine the latest production status of the monitored machine. Among its many features, the device (1) includes: a reset button (20), a status light (21), a power input port (19), a plastic housing (18), a PCB (48), and an ADC. Optional features include an mountable adhesive or magnetic base (49) and a rechargeable battery.

The utility model discloses a flow accumulation device, and relates to the technical field of measurement. The device comprises a flow meter, a programmable logic controller (PLC), a selection switch and a reset button, the flow meter comprises a flow meter body and a differential pressure transmitter, the PLC comprises a power supply unit, a central processing unit, a timer, an analog quantity input unit and a switching value input unit, the flow meter body is electrically connected with the differential pressure transmitter, and the switching value input unit is electrically connected with the central processing unit. The differential pressure transmitter is electrically connected with the analog input unit, the analog input unit is electrically connected with the central processing unit, the selection switch is electrically connected with the switching value input unit, the reset button is electrically connected with the switching value input unit, the switching value input unit is electrically connected with the timer, and the timer is electrically connected with the central processing unit. The power supply unit is electrically connected with the central processor, the timer and the switching value input unit respectively; through the selection switch, the timer and the like, the accumulation time can be selected according to use requirements, and due to the fact that the accumulation time is short, the measurement accuracy is improved, and the applicability is better.

The utility model discloses a robot head structure, which belongs to the technical field of robots, and adopts the scheme that the robot head structure comprises a head shell, a bracket in the head shell and a neck connecting piece rotating seat, a storage battery is arranged in the support, a main circuit board is arranged on the front face, an auxiliary circuit board with a key assembly is arranged at the top end, and the main circuit board is electrically connected with a display screen, double microphones, a camera assembly and a loudspeaker on the back face of the support. Arm motors on the two sides of the lower end of the support are in shaft connection with arms, a head motor in the middle is in shaft connection with a driving gear, the driving gear is meshed with an incomplete gear on a hinge shaft of the rotating seat, and mesh holes and a functional groove with a Type-C interface and a reset key are formed in the back face of a head shell. The technical effects that the structure is compact, the head rotates accurately, the actuator can be replaced by the arms, the interactive experience is excellent, and the expansibility is high are achieved.

The utility model discloses a rubber vulcanizing device for producing a rubber sealing element, which belongs to the technical field of rubber vulcanizing, and comprises an operation table, the top of the operation table is provided with a display screen, a start button, a reset button, a shear button and an alarm lamp, by arranging the shearing assembly, residues at the corners of the rubber sealing element can be accurately removed within a short time, compared with manual operation, the rubber sealing element processing device is higher in running speed and more accurate in action, the processing work of a large number of products can be rapidly completed, meanwhile, the shearing assembly is arranged, and the processing efficiency of the rubber sealing element processing device is greatly improved. According to the rubber sealing element shearing device, the shearing of corner residues of each rubber sealing element can reach the unified standard and precision requirement, through the arrangement of the processing assembly, rapid heating can be achieved, rubber can reach the temperature condition needed by vulcanization more rapidly, rapid cooling can be achieved after vulcanization is completed, and the vulcanization period of the single rubber sealing element is shortened.

The utility model relates to a cable on-off universal detection device. The cable on-off universal detection device comprises a device shell, a PLC control panel, a standard connector, a device main switch, a display screen and a core wire definition and control button. A PLC controller, a multi-way switch module and a resistance acquisition module are arranged on the PLC control panel, the PLC controller is connected with two rows of core wire definition and control buttons positioned on the panel, the core wire definition and control buttons comprise a plurality of digital buttons, a confirmation button, a return button, a start button, a stop button and a reset button, and the number of the digital buttons is more than one. The definition module is used for defining corresponding relations of core wires at two ends of the multi-core cable; the multi-way switch module is used for realizing switching of multiple groups of measuring channels, the resistance acquisition module is used for measuring a resistance value, and the PLC is used for completing data processing and displaying a result on the display screen through the communication module. According to the utility model, the due on-off relationship of the core wires at the two ends of the multi-core cable can be self-defined, and the problems of long time consumption, low efficiency and the like of multi-core cable on-off detection are solved.

This invention provides a fire detection and protection device for semiconductor CVD equipment, comprising a housing, a fire detection module, a control module, and an alarm module. The housing is mounted on one side of the control cabinet. The fire detection module includes a fire detector. The control module includes a self-locking relay, a time-delay relay, and a reset button. The alarm module includes an audible and visual alarm. The fire detector is disposed within the control cabinet, the self-locking relay and the time-delay relay are disposed within the housing, and the reset button and the audible and visual alarm are disposed on the housing. An AC contactor is provided in the control cabinet. The closing and opening of the normally open contacts of the AC contactor controls the on / off state of the main power supply of the control cabinet. The control module controls the energization and de-energization of the coil of the AC contactor based on the fire detector, thereby controlling the on / off state of the main power supply of the control cabinet. This invention improves the fire hazard prevention and control capabilities of semiconductor CVD equipment.

1. Name of the product in this design: Curve color adjustment settings area of ​​the graphical user interface for image editing of electronic devices. 2. Intended use of this design: for use in an electronic device. 3. The key design feature of this product lies in the graphical user interface on the screen. 4. The picture or photo that best illustrates the key points of the design: Main view of Design 1. 5. Design 1 is designated as the basic design. 6. Purpose of the graphical user interface: The main views of Design 1 to Design 7 are image editing interfaces used to edit images; the lower half of the interface displays the editing curve, and users can adjust the curve by sliding the color points on the curve to edit the image; the four circles on the left above the curve represent four colors, and clicking them allows you to select the color to be edited; the two icons on the right represent deleting color points and resetting, respectively; the button above the reset button is the comparison button. Design 1's main view is the editing interface for the original image. Design 2's main view shows the interface for image editing using the first color point from left to right. Design 3's main view shows the interface when editing is completed using the first color point from left to right, and when editing the image using the second color point. Design 4's main view shows the interface when editing the image using the first, third, and fourth color points from left to right, and then using the second color point for image editing. Design 5's main view shows the interface when editing is completed using the first color point from left to right, and when editing the image using the fourth color point. Design 6's main view shows the interface when editing is completed using the first color point from left to right, and when editing an image using the third color point. The main view of Design 7 shows the interface when editing is completed using the first two color points from left to right, and when editing the image using the third color point. 7. From the main view of Design 1 to the main view of Design 7, the partial appearance design of the product is requested to be protected. The dotted lines in the drawings do not form the part for which protection is requested.

The application discloses a high-precision small font high-frequency inductor silk screen automatic machine and a production process thereof, and relates to the technical field of automatic label printing machines. The high-precision small font high-frequency inductor silk screen automatic machine and the production process thereof comprise a base, and the top of the base is provided with a control box, a vibration disc feeding module, an eight-station material taking and layout module and a part position correction module. The control box is used for turning on a power switch through a total power knob. After the whole machine is reset for 3 seconds, a start button is pressed, and the machine can enter an automatic state, start automatic operation or step operation, and be paused or stopped through a stop knob. The reset button is used for removing a fault alarm of the machine, and the whole machine is reset for 3 seconds. The emergency stop switch is used for emergency braking. The touch screen is used for operation, display and parameter setting. Different working states can be represented through different color warning signal lamps, and the machine has high practicability.

The invention discloses a leakage protector with a light indication function, which relates to the technical field of leakage protectors and comprises a shell and a machine core assembly arranged in the shell. The machine core assembly comprises a control circuit board, a machine core fixing frame, an input terminal assembly and an output terminal assembly which are coupled to the control circuit board, an elastic piece connecting assembly used for electrical connection between the input terminal assembly and the output terminal assembly, and a leakage protection device arranged in the machine core fixing frame. The leakage protection device comprises a reset button, a reset stop block, a coil driving device and an indication switch assembly. The indication switch assembly comprises an indication switch elastic piece and a state indication piece, and the state indication piece provides a first indication by responding to contact of the indication switch elastic piece and the second fixed contact and / or provides a second indication by responding to separation of the indication switch elastic piece and the second fixed contact. Therefore, the product can provide indication or warning for a user based on the working state and the fault state, and the use safety is improved.

The application discloses a layered extraction recovery device for evaluating the permeability of a regenerating agent for a regeneration technology, which comprises a box, a lifting control module, a rotation control module and a heating control module; a box door is arranged on the front face of the box and a digital display control module is embedded in the box door; the digital display control module comprises a power button, a start button, an emergency stop / reset button and a temperature setting button; an electricity connection port is arranged on the back face of the box; the lifting control module is arranged on the lower surface of the top of the box and is connected with the power button, the start button and the emergency stop / reset button respectively; the rotation control module is arranged on the upper surface of the bottom of the box and is connected with the power button, the start button and the emergency stop / reset button respectively; the heating control module is arranged in the box and is connected with the temperature setting button; and temperature measuring holes and flow guiding holes are arranged on the side face of the box. The application simplifies the operation process, accurately controls the same time of each dissolution and improves the safety of solvent evaporation recovery.

The application provides a reset locking structure and a leakage protection device, and belongs to the technical field of electric appliance switches. The reset locking structure comprises a base, the base is connected with an air switch, and a reset button is movably arranged on the base in an elastic manner. The reset locking structure further comprises a linkage rod and a tripping connecting rod. When the reset button is in a reset state, the linkage rod is matched with the reset button and located at an initial position, and the tripping connecting rod can rotate without interference, so that a handle can be operated for power-on or power-off. When the reset button is in a pop-up state, the linkage rod is matched with the reset button and located at a locking position. In the locking position, the linkage rod is locked by the reset button and cannot rotate towards the initial position. The tripping connecting rod is constrained at a power-off position and cannot rotate towards a power-on position, thereby blocking the handle from performing power-on operation. The reset locking structure and the leakage protection device can limit the handle to perform power-on operation in a leakage state, thereby improving safety performance.

The utility model discloses a process DCS chain parking signal alarm device based on intermediate relay contact monitoring, and relates to the technical field of electronic circuit monitoring. Comprising a photoelectric coupler, an operational amplifier, a switching diode D2, triodes Q1 and Q2, a light emitting diode D1, a piezoelectric ceramic piece HTD, a plurality of resistors, capacitors C1 and C2, a reset button and a detection point switch. The photoelectric coupler comprises an A214a, an A214b and an A214c, the A214a, the A214b and the A214c form a monitoring triggering device, and an electronic switch clamping interlocking trigger is formed; the operational amplifier comprises an SF324a and an SF324b, and an alarm sounding device is formed by the SF324a and the SF324b; the light emitting diode D1 is an alarm indicating device. According to the utility model, sound-light alarm is given out after a signal is triggered, the alarm state is still kept until manual reset after the signal is returned, and continuity and stability of production are guaranteed.

This invention relates to the field of electronic device debugging technology, and discloses a reset circuit and reset method for a display driver board, as well as a computer-readable medium, including an interface whose signal pins include at least a power signal, a CC1 protocol signal, and a CC2 protocol signal; a power control module electrically connected between the power signal input and output terminals of the interface for controlling the on / off state of the power signal; a protocol signal control module electrically connected to the CC1 and CC2 protocol signals of the interface; and a reset button, the first end of which is electrically connected to the power signal input terminal. This invention uses discrete components such as buttons, resistors, and MOSFETs to construct a switch control circuit, simultaneously cutting off the VBUS power signal and the CC1 and CC2 protocol signals of the interface, enabling the master and slave devices to re-negotiate and achieve a one-button reset without repeatedly plugging and unplugging the interface.

1. The name of the design product: vehicle driving track management graphical user interface of electronic equipment. 2. The use of the design product: the design product is used for an electronic equipment. 3. The design points of the design product: the interface content of the graphical user interface in the screen. 4. The picture or photo that best indicates the design points: the front view. 5. The use of the graphical user interface: the interface design of the design product is used to display the vehicle positioning and query the vehicle driving history track. 6. The change state description of the graphical user interface: the main view is the interface diagram displayed after clicking the history track module after logging in to the management system; after inputting the vehicle license plate / VIN code and time period information in the main view and clicking the search, change state diagram 1 is entered; the left position of change state diagram 1 selects the time period, and the vehicle icon changes along with the vehicle driving route by clicking the triangle play key below, and change state diagram 2 is entered after the vehicle icon changes; the vehicle icon can be paused by clicking the triangle play key again in change state diagram 2, and the position of the vehicle in the corresponding time period can be viewed by pulling the play progress bar above the triangle play key, and the vehicle position will return to the original position by clicking the reset button.

The invention discloses a barrier-free communication reader, and relates to the technical field of auxiliary communication and barrier-free, the barrier-free communication reader comprises a glove body, and the glove body is integrated with an input module, a tactile feedback module, a control module and a power supply module; the input module comprises a plurality of self-reset type buttons arranged on the inner sides of fingers of the glove body, and the input module is used for receiving characters or instructions input by a user by pressing different self-reset type button combinations and transmitting the received information to the control module; self-reset button input and multi-dimensional vibration feedback are integrated, a closed loop of'user input-text output-external information-touch receiving 'is realized, the limitation of a one-way function of existing equipment is solved, meanwhile, complicated specific codes are replaced by supporting self-defined visual mapping (such as pinyin and strokes), the learning threshold is remarkably reduced, and the learning efficiency is improved. The method can efficiently adapt to complex language systems such as Chinese characters, and meets daily communication requirements of different users.

The utility model relates to a wall socket with a mistaken touch prevention electric leakage protection and fault arc protection structure, which comprises an upper cover, a bottom cover bolt, a circuit board, a binding post, a first connecting lead, a second connecting lead, a circuit connecting assembly and a disconnecting assembly, the bottom cover is connected with the upper cover through a plurality of bolts, the circuit board is arranged on one side in the bottom cover, and the circuit board is arranged on the other side in the bottom cover. At least two binding posts are installed on the circuit board, the binding posts are electrically connected with the circuit board through second connecting wires, and pins are installed on the other side of the interior of the bottom cover. When the socket mistakenly touches the reset button in use, the reset button firstly slides downwards to extrude the first elastic piece to deform, and the conductive metal sheet is kept to be connected with the power supply under the action of the second elastic piece, so that power failure caused by mistakenly touching the reset button of the socket is avoided, and influence on use of the socket due to mistakenly touching is prevented.

The utility model relates to a navigation and position service teaching special positioning development equipment, including communication module, positioning module and PCB board, still include main control unit, interface module, power module and teaching operation module, communication module includes 4G communication unit, positioning module includes GPS positioning unit, and main control unit includes MCU chip, teaching operation module includes power -on indicator, positioning state indicator, communication state indicator, reset button and wake -up button, interface module includes UART interface, SPI interface and I2C interface, and UART interface, SPI interface and I2C interface all are provided with the board connector, and 4G communication unit and GPS positioning unit are detachably connected with the PCB board through the board connector. The utility model circuit structure is simple, uses the board connector to realize wiring and dismounting, and cooperates teaching operation module to realize parameter debugging and circuit troubleshooting, and provides the hardware basis for program operation.