45results about How to "Solve failure" patented technology

The invention provides a system and a method of linear array CCD camera multi-point automatic focusing, wherein the method comprises dividing a PCB board into a plurality of areas, selecting an area needed to be scanned; opening a linear array CCD camera, collecting images containing contour information of the PCB board, determining image quality four-neighborhood definition weight coefficients of each area according to complexity levels of the contour information of different areas, and judging the optimal collecting image quality according to a comprehensive definition of the image. The technical solution provided by the invention is simple, practical, and convenient to implement, and has a strong versatility. The technical problem of malfunction or inaccurate focusing of a range-measurement system can be satisfactorily solved, and the mechanism is simple and highly accurate.

To improve a restart failure during fuel vapor occurrence, in a fuel injection control apparatus for an engine that is not equipped with a battery and starts the engine by a manual operation, the fuel injection control apparatus for an engine includes: an injector that supplies fuel to the engine based on pressure of the fuel supplied by a fuel pump; a power generating section for generating power based on rotation driving of a crank shaft of the engine; a starting device for manually starting the engine; and a control section for starting with power generation voltage by the power generating section and calculating a fuel injection amount based on an operation state of the engine. The control section includes: an injection amount calculating function unit that calculates, according to the operation state of the engine, an injection amount of the fuel to be supplied to the engine; an injection time conversion coefficient calculating function unit that calculates an injection time conversion coefficient for converting the injection amount into injector driving time based on a predicted fuel pressure value; and an injector driving time calculating function unit that calculates driving time of the injector based on an output of the injection amount calculating function unit and an output of the injection time conversion coefficient calculating function unit.

The invention discloses a reinforcement learning method, device and equipment for a sparse reward environment and a medium; the method comprises the steps: carrying out the interaction of an action with a plurality of current environment states, and obtaining a plurality of environment states at a next moment; calculating the similarity of the environment state at the next moment to obtain a similarity matrix; judging whether the current environment state is influenced by random noise or not according to the similarity matrix; if the current environment state is influenced by the random noise, calculating an internal reward value through a preset environment familiarity model; and performing strategy learning according to empirical data generated by interaction with the environment and the calculated internal reward value. According to the reinforcement learning method provided by the embodiment of the invention, the strategy can be quickly and effectively learned under the condition that the external rewards are relatively sparse or do not exist.

The invention discloses a method for improving a steady-state operating range of an electric power spring. The method comprises the steps of calculating a steady-state grid-side voltage representation vector according to an electric power system network topology and electrical parameters corresponding to the electric power spring, and drawing a vector track curve; obtaining a steady-state operating track and range of the electric power system through analysis by a geometric method according to the steady-state grid-side voltage vector track; obtaining a system optimal control track under the grid-side voltage out-of-limit condition according to the steady-state grid-side voltage vector track by combination with the geometric method; and obtaining an optimization calculation method for the expanded steady-state operating range of the electric power spring and the key load voltage set values of the electric power system in the grid-side voltage non-out-of-limit condition and the grid-side voltage out-of-limit condition. By adoption of the method, the problem of failure of the electric power spring in the grid-side voltage out-of-limit condition can be effectively avoided, so that the steady-state operating range of the electric power spring is expanded, and the safety and stability operation performance of the electric power spring system are obviously improved.

The liquid level gauge of the present invention is composed of a floating ball 4, a telescopic fixed connecting rod 3, a rotating dial 1, a bearing bracket 2 and a visible convex lens 5 installed on the container. Install the visible convex lens at the proper position of the container, install the rotating dial through the bearing bracket at the center level of the visible convex lens inside the container, and then connect the floating ball and the rotating dial through a telescopic fixed link, so far a complete built-in The liquid level gauge is installed. When the floating ball moves up and down with the liquid level, the floating ball also drives the rotating dial to rotate through the connecting rod. The operator can easily observe the value on the rotating dial through the visible convex lens installed on the container, and then know the liquid level. high. Since the entire liquid level gauge is in the equipment container, the problem of freezing and blocking of conventional glass tube level gauges and magnetic column level gauges is eliminated.

The invention relates to a protective circuit for an expansion unit wiring system. The protective circuit comprises a line protection device connected to a 110 kV power system through a voltage transformer and two transformers with 110kV voltage classes. The two transformers share the same circuit to be connected with the 110kV power system. In the circuit, the 110kV side of each transformer is provided with an isolating switch, a current transformer and a circuit breaker which are connected in series. The output end of the line protection device is connected with the two circuit breakers of the 110kV sides of the two transformers. The input end of the line protection device is connected with an overvoltage protection and transfer trip local discrimination device. The invention firstly provides the expansion unit wiring system with a protection method suitable for the two transformers with 110kV voltage classes sharing the same circuit of a transformer station and a power station boosting station, solves the application of the expansion unit wiring type in the 110kV voltage class power transformation system, and greatly shortens protection action time.

The invention relates to an electric sprayer nozzle and belongs to the technical field of spraying devices. The electric sprayer nozzle is fixed to a water tank through a bayonet. The electric sprayer nozzle comprises a shell, an air pump, a battery and a master control plate. The air pump, the battery and the master control plate are fixed to the shell. A pressure sensor is arranged on the inner side of an air outlet of the air pump and connected to the bayonet through a hose. The battery is used for supplying electricity to the air pump, the master control plate and the pressure sensor. An air inlet of the air pump is communicated with the atmosphere. The air outlet of the air pump is arranged on the bayonet and connected with the water tank. The signal input end of the master control plate is connected with the output end of the pressure sensor. The control output end of the master control plate is connected with the control end of the air pump. A breathable and waterproof column plug is arranged at the end, located on the bayonet, of the hose. The portion, located on the water tank side, of the bayonet is covered with a breathable and waterproof membrane. According to the electric sprayer nozzle, due to the mode that the breathable and waterproof membrane and the breathable and waterproof column plug are arranged, water is prevented from entering the pressure sensor of the electric sprayer nozzle, and therefore the problem that the electric sprayer nozzle is out of order is solved.

The present disclosure provides a source driver and a display panel. The source driver includes a printed circuit board, a flip-chip film, a source driver chip, a first connection line, and a test point. The source driver chip is encapsulated on the flip-chip film and connected to the display panel through the first connection line, and the first connection line is connected to the test point, wherein a conductive pattern is formed on the flip-chip film, the conductive pattern is grounded through a ground line, and the conductive pattern includes a tip portion configured to form a tip discharge effect to discharge static electricity on the test point to the ground line. Therefore, the present disclosure can conduct static electricity through the tip portion when electrostatic discharge occurs, thereby preventing the electrostatic discharge from damaging the driver chip through a test point path.

The invention belongs to the field of a fire alarm, and particularly to an explosion-proof hand-operated fire alarm. For aiming at problems of direct exposure of an outer side of a traditional fire alarm to outside, easy insect entering from a slit of the fire alarm, and fire alarm malfunction in a severe condition, the invention provides the explosion-proof hand-operated fire alarm which is characterized in that the explosion-proof hand-operated fire alarm comprises a mounting enclosure and an alarm device which is connected with the mounting enclosure; a mounting board fixedly sleeves the outer ring at one end, which is next to the mounting enclosure, of the alarm; one side, which is far from the mounting enclosure, of the mounting board is provided with an abutting sleeve ring; one endat one side, which is far from the mounting board, of the abutting sleeve ring is provided with a fixed base that is welded; a rotating shaft is movably sleeved on the fixed base; and the outer ring of the rotating shaft is fixedly sleeved with a connecting rod. According to the explosion-proof hand-operated fire alarm, the insulating enclosure is added outside the alarm, thereby preventing entering of insects through the slit of the alarm, protecting safety of the alarm, improving the explosion-proof function of the alarm, and realizing convenient and quick mounting and detachment of the insulating enclosure, wherein the insulating enclosure is fixed by means of an interlocking mode.

The invention discloses a DC power supply monitoring equipment based on a PLC, which comprises a bearing track, a guide track, a first monitoring device, monitoring position adjusting assemblies, second monitoring devices and the PLC, wherein the bearing track and the guide track are symmetrically arranged up and down and extend in the distribution direction of a DC power supply in a horizontal posture; the first monitoring device is fixed at the top of the guide track and is used for monitoring in a range a; two monitoring position adjusting assemblies are movably arranged between the bearing track and the guide track, and second monitoring devices are arranged at the adjusting ends of the monitoring position adjusting assemblies. The second monitoring devices can perform monitoring in a b range; moreover, the first monitoring device and the second monitoring device are uniformly controlled by the PLC, and when the first monitoring device monitors that the DC power supply is abnormal, the PLC controls the monitoring position adjusting assemblies to drive the second monitoring devices to move to an abnormal position, and re-confirmation is carried out.

The invention relates to an electric sprayer nozzle and belongs to the technical field of spraying devices. The electric sprayer nozzle is fixed to a water tank through a bayonet. The electric sprayer nozzle comprises a shell, an air pump, a battery and a master control plate. The air pump, the battery and the master control plate are fixed to the shell. A pressure sensor is arranged on the inner side of an air outlet of the air pump and arranged in a square box body. A wire holder used for arranging and inserting wires is reserved on the square box body and used for connecting the output end of the pressure sensor and the signal input end of the master control plate. The pressure sensor is connected to the bayonet through a hose. The control output end of the master control plate is connected with the control end of the air pump. A breathable and waterproof column plug is arranged at the end, located on the bayonet, of the hose. The portion, located on the water tank side, of the bayonet is covered with a breathable and waterproof membrane. According to the electric sprayer nozzle, the wires are connected in an arranging and inserting mode; product consistency is high; and the electric sprayer nozzle is suitable for volume production and solves the problem that the electric sprayer nozzle is out of order.

The invention relates to the technical field of locks, and particularly relates to an electronic signal transmission device for a key cylinder. The electronic signal transmission device for the key cylinder comprises a key and a lock body, wherein the key cylinder, a shifting fork, a knob shaft and a coupling device which is used for enabling the key cylinder and the shifting fork to rotate in a coupling mode are arranged in the lock body, a signal sending module which is used for sending a signal to drive the coupling device to operate is arranged in the key, a conductive contact which is connected with a key rod is arranged on the key rod, after the key is inserted into the key cylinder, the conductive contact is connected with a key cylinder probe in the key cylinder, the key cylinder probe is connected with a left lock body probe in the lock body, the left lock body probe is connected with a right lock body probe in the lock body by virtue of a conductive sealing piece, the right lock body probe is connected with a conducting ring on the knob shaft, and the conducting ring is connected with a driving circuit of the coupling device. By adopting the technical scheme, the electronic signal transmission device has the advantages of compact overall structure and stability in connection, and the service life of a product is prolonged.

The invention is applicable to the field of computers, and provides a virtual reality walking platform based on VR training. An initial position confirmation module identifies information that a user arrives at an initial position and transmits the initial position information to a walking monitoring module, and the walking monitoring module monitors the moving condition of the user in real time; the moving information of the feet of the user relative to the initial position is sent to a position callback module, the moving information processed by the position callback module is sent to the driving mechanism of the walking platform, and the driving mechanism can correct the position of the user so that the position of the user is close to the initial position; and the user does not deviate too much during continuous movement. The problem that when a training VR device is experienced, due to the fact that the size of the walking platform is limited, an experiencer often walks out of the designated walking platform or collides with a guardrail of the walking platform in the operation process so that the VR device fails or a user is injured is solved.

The invention provides a sealing structure for a penetrating hole of a color steel plate. The sealing structure comprises a main frame, a butt clamp flange and an MCT sealing module, wherein the mainframe comprises a sleeve main body and a flange plate, the flange plate is located at one end of the sleeve main body, the other end of the sleeve main body is matched with the butt clamp flange, thelength of the sleeve main body is larger than that of the hole, and the MCT sealing module is matched with the sleeve main body. The overall structure of the color steel plate is guaranteed, and the problem of sealing failure in the long-time use process of an original mode is solved. In addition, with the adoption of the sealing mode, corrosion resistance, fire prevention, dust prevention and airtightness are improved, micro-vibration of a pipeline is also well resisted, and a real sealing effect is achieved for a long time. And the requirements of corrosion resistance, fire prevention, dustprevention and air tightness can be met for a clean inner chamber or a negative pressure chamber.

The invention relates to the technical field of wire cutting, in particular to a broken wire detection system which comprises a broken wire detection device and a wire tensioning device which are arranged on the side upper portion of a wire roller and arranged in the length direction of the wire roller in a spaced mode. The broken line detection device comprises a supporting component, and a swinging component, an elastic reset component, a sensing component and a pressing component which are arranged on the supporting component; one end of the elastic reset component is connected with the supporting component, and the other end of the elastic reset component abuts against the swing component. The swinging component is rotationally connected with the supporting component, and an auxiliary mounting part is formed on the swinging component; the wire tensioning device is used for fixing one part of the detection wire, and the other part of the detection wire can extend to the pressing component through the auxiliary mounting part and is pressed by the pressing component. Therefore, the detection system can detect the broken line in real time, and the stability and the safety of the equipment are improved.

The invention discloses a scissor-type simple lifting garage capable of preventing failing of a mechanical safety hook interlock device. The problems that work condition monitoring lacks and failing is prone to occurring of the mechanical safety hook interlock device are solved. A V-shaped swinging arm (11) is hinged to a hook hinge pin (10), an electronic control oil cylinder support (12) is fixedly arranged on a lower car bearing plate (1) on the left side of a hook hinge pin mounting seat (9), the electronic control oil cylinder support is respectively provided with an electromagnet (13), ahook hooking-up closing switch (14) and a hook opening closing switch (15), the output shaft extending towards right of the electromagnetic (13) is connected with the left end of the V-shaped swinging arm (11), a hook body bending downwards is arranged at the right end of the V-shaped swinging arm, and an electric controller (6) is respectively and electrically connected with an electric controlhydraulic oil cylinder (5), the hook hooking-up closing switch (14) and the hook opening closing switch (15). The reliability and safety of operation of the scissor-type simple lifting garage are guaranteed.

The present invention provides a magnetic force positioning electronic switch. The magnetic force positioning electronic switch is characterized in that a plurality of magnetic blocks are distributed evenly at one side of a pedestal of an electronic switch, a plurality of switch contacts are arranged at the other side, and a slidable magnetic block is arranged in the center; the magnetic poles of the plurality of evenly distributed fixed magnetic blocks and the slidable magnetic block are inverse, and the slidable magnetic block is arranged in a transverse chute in the middle of the pedestal via a lower sliding base with a contact, thereby forming a structure capable of sliding left and right. When the magnetic force positioning electronic switch is used, the slidable magnetic block can be slide left and right to adjust the gear of the switch. The magnetic poles of the plurality of evenly distributed fixed magnetic blocks and the slidable magnetic block are inverse, and based on a magnetic effect of same-sex repulsion, the slidable magnetic block can be stopped at the needed switch contact automatically and accurately when sliding, so that the gear of the switch can be adjusted very conveniently and accurately under the magnetic effect. The magnetic force positioning electronic switch possesses the characteristics of being accurate and convenient in adjustment, and being safe and durable.