36results about How to "Realize autonomous power supply" patented technology

The invention relates to a wind-concentrating type large flow haze-removing air purifying system, comprising a tower body and a wind-concentrating cover. A primary filter layer and a secondary absorption layer are arranged in the middle of the tower body; a haze air inlet is arranged at the side wall of the tower body below the filter layer; a clean air outlet is arranged at the top of the tower body; and the clean air outlet at the top of the tower body is communicated to the middle of the wind-concentrating cover. A water storage chamber is arranged at the bottom of the tower body; a submersible pump is arranged in the water storage chamber; a sprayer connected to the submersible pump is disposed between the primary filter layer and the secondary absorption layer. Haze-containing air enters the tower body through the haze air inlet and is purified through the filter layer by removing the haze. According to the invention, the wind-concentrating cover is used to increase air flow rate; filtered clean air in the tower body is pumped out in a self-absorption manner; and the wind-concentrating type large flow haze-removing air purifying system can work in gentle breeze, thereby increasing daily processing capacity of the air. The haze-containing air is subjected to two-stage filtration and water filtration, and thus a haze-removing purifying effect is significant. A power supply is provided to the submersible pump and an axial flow exhaust fan through a wind motor and a solar cell panel, thereby realizing automatic power supply.

The invention discloses a thermoelectric generation thermal system wireless temperature measuring apparatus. The apparatus is characterized by comprising a TEG thermoelectric power converter, a thermoelectric power collector, a lithium battery, a temperature measurement module, an LED display, a K-type thermocouple temperature sensor, a wireless sending module and a wireless receiving module. The TEG thermoelectric power converter converts heat energy into electric energy and is connected with the thermoelectric power collector through a lead; the thermoelectric power collector is respectively connected with the lithium battery and the low-power temperature measurement module through leads; the temperature measurement module is respectively connected with the LED display, the K-type thermocouple temperature sensor and the wireless sending module through leads; and the wireless sending module communicates with the wireless receiving module in a wireless mode. The thermoelectric generation thermal system wireless temperature measuring apparatus solves the problems that the temperature measurement of a conventional thermal system requires power supply from a lithium battery or commercial power to keep working, the lithium battery needs to be frequently replaced, and there are strict conditions for the commercial power. The thermal system wireless temperature measuring device can work in application occasions with strict requirements for power supply conditions.

The present invention provides an electromagnetic vibration transducer, a sensing device and a track state monitoring system, and relates to the energy technology field. The electromagnetic vibration transducer comprises a coil, a hollow body, a first magnet, a second magnet and a third magnet, the coil sleeves the hollow body along the axial direction of the hollow body, the first magnet is arranged at one end of the hollow body, and the second magnet is arranged at the other end. Under the repulsive force action of the first and second magnets, the third magnet suspends in the hollow body. When the electromagnetic vibration transducer vibrates, the third magnet generates the relative vibration with the first and second magnets, so that the coil generates an induction current to convert the vibration kinetic energy into the electric energy based on the law of electromagnetic induction, and the autonomous power supply is realized.

The invention relates to the technical field of industrial equipment, and discloses industrial environment wearable equipment which comprises an intelligent watch, a wearable intelligent photovoltaicgarment and an intelligent safety helmet, wherein the intelligent watch is in communication connection with the wearable intelligent photovoltaic garment, and the intelligent safety helmet is electrically connected with the wearable intelligent photovoltaic garment in a wired connection mode. The equipment is applied to and worn on a field operator, autonomous power supply to the intelligent safety helmet can be realized, the intelligent safety helmet not only has a safety protection function, but also can perform real-time information interaction with the monitoring terminal and display on-site working condition information, so that the working efficiency and the working quality of intelligent operation of equipment overhaul and maintenance, safety monitoring and production management inan industrial environment can be remarkably improved.

The invention discloses an intelligent mobile toilet, which includes at least one movable toilet body, the movable toilet body is provided with a controller, a display screen connected to the controller, and a power supply, and the display screen is used for placing advertisements or notification messages; The inner wall of the movable toilet body is provided with a cigarette lighter connected with the power supply. The intelligent mobile toilet of the present invention integrates multiple functional modules such as a controller, a display screen, a speaker, and a WiFi module on the basis of ordinary trash cans containing garbage, so that the trash can has a market for advertising, voice broadcast, and WiFi hotspots. At the same time, solar energy can be used to realize the independent power supply of the toilet, which can effectively save energy and reduce emissions. It is also equipped with convenient facilities such as shoe shine, perfume spraying, shopping, and withdrawals, so that citizens can easily go to the toilet without worry, completely subverting the existing public toilets. Dirty and messy impression of the toilet.

The invention discloses a bluetooth smart card and a charging method thereof. The bluetooth smart card comprises a power storage device, a power supply control device and a performing device. The power supply control device is connected with the power storage device. The power storage device is connected with the performing device through a first power supply channel. The performing device is a processing device for performing the function of the bluetooth smart card. The power supply control device is used for opening the first power supply channel and connecting the power storage device and the performing device when the bluetooth smart card is detected to be in the power-on state and the bluetooth smart card is not connected with any external equipment and also controlling the power storage device to supply power to the performing device through the first power supply channel. According to the bluetooth smart card, autonomous power supply under the independent working mode can be realized so that normal operation of all the performing modules of the bluetooth smart card under the independent working mode can be guaranteed.

The invention relates to a monitoring method based on a green campus ecological information platform. The structure according to the monitoring method comprises a perception layer, a transmission layer and an application layer. The perception layer is corresponding to a data acquisition side. The transmission layer is corresponding to base stations in the data acquisition side and gateways of a server side. The application layer is corresponding to the server side and data display terminals. The perception layer completes monitoring and acquisition work of data. Different types of water environments have different monitoring data, and configured data sensors are also different. Power of all the sensors is supplied by solar cells. Communication nodes have built-in cells and also have the solar cells for power supply so as to realize autonomous power supply. The condition of the campus water environments can be obtained through monitoring and analysis of the water environment parameters.

The invention relates to an environment-friendly energy-saving doorbell with an autonomous power supply function. The environment-friendly energy-saving doorbell comprises a barrier layer of a doorbell frame box, guide grooves, a guide ridge, a push rod gear, a guide hammer, a bearing with an outer ring in the shape of a circular truncated cone, a bearing gear, a fixed shaft of a power generation assembly, a base, a convex push rod, a key sleeve, a spring, an annular base plate, a key clamp sleeve, a bolt, a fixing plate, an annular barrier, the doorbell frame box, a spherical contact switch, an oscillating circuit and the like, and is characterized in that the bearing with the outer ring in the shape of the circular truncated cone is arranged at the lower end of the power generation assembly, the bearing gear is arranged on a slope surface of the outer side of the bearing, the guide grooves are oppositely symmetrically formed in the lower surface of the barrier layer of the doorbell frame box and the bottom surface of the doorbell frame box, the guide ridge is arranged between the guide grooves, the guide hammer is arranged between the upper and lower guide grooves and is positioned at one end of the push rod gear, the convex push rod is arranged at the other end of the push rod gear, the push rod gear can be coupled with the bearing gear in pushed procedures, accordingly, the power generation assembly can be driven to generate power, the spherical contact switch can be turned on when the spherical contact switch which is positioned on the inner rear wall of the doorbell frame box is butted to the guide hammer, and the circuit can be closed and starts to oscillate and produce sound.

The invention provides a self-generating system for a square. The system comprises a power generation device module, an energy conversion module, an energy storage module, a controller module and a light and audio output module. The energy conversion module comprises a rectifier and filter circuit and a direct-current voltage boost circuit. The rectifier and filter circuit comprises an AC-DC levelunit, a voltage limiting circuit, a DC-DC level unit and a pulse voltage circuit. The power generation device module, the AC-DC level unit, the voltage limiting circuit, the DC-DC level unit, the direct-current voltage boost circuit, the energy storage module, the controller module and the light and audio output module are sequentially connected. The pulse voltage circuit, the power generation device module and the DC-DC level unit are connected respectively. According to the invention, mechanical energy generated by the fitness crowd on the square is converted into electric energy, so as torealize autonomous power supply; and the self-generating system has the advantages of energy conservation, environmental protection, simple structure and being convenient and practical.

The invention discloses a portable projector based on mobile interconnection. The portable projector comprises a central processing unit, a 4G module unit, a high-capacity battery unit, a battery management unit, an LED (Light Emitting Diode) light machine unit, an LED driving power supply unit and a DLP (Digital Light Processor) unit. The 4G module unit is additionally arranged in the portable projector disclosed by the invention; the projector can continuously provide services without a wireless network; users can access required information at any time, such that the user experience is improved; the high-capacity battery unit is additionally arranged; therefore, autonomous power supply of the projector can be realized; the portability and the practicability of the projector are improved; the DLP unit and the LED light machine unit are utilized; display of a high-definition picture is realized; the picture output quality of the projector is improved; various interfaces are provided, such that the expansibility of the projector is improved; a fan unit is additionally arranged, such that the heat dissipation function of the projector is enhanced; a power amplifier unit and a loudspeaker unit are also additionally arranged; therefore, the realistic sound effect is provided; and the play effect of the projector is enhanced. The portable projector based on mobile interconnection disclosed by the invention can be widely applied in the field of projection.

The invention provides an energy-saving and environment-friendly hydroelectric power generation water flow velocity detection device suitable for rivers and lakes, which relates to the technical field of new energy power generation. The energy-saving and environment-friendly hydroelectric power generation water flow velocity detection device suitable for rivers and lakes comprises a fixing plate, a sealing shell is fixedly mounted at the top of the fixing plate, a mounting cavity is formed in the sealing shell, and a storage battery pack is fixedly mounted on the left side of the interior of the mounting cavity; and a control panel is fixedly mounted on the right side of the interior of the mounting cavity. According to the energy-saving and environment-friendly hydroelectric power generation water flow velocity detection device suitable for rivers and lakes, dual power generation is achieved through light energy and water power to be supplied to the device for use, the characteristics of energy saving and environment protection are embodied, a plurality of protection structures are arranged, detection equipment can be protected to the maximum degree in water, and moving, detection, power supply and information transmission are automatically conducted; manual multi-time measurement and detection are not needed, the detection accuracy is high, more time and labor are saved, and the detection efficiency is improved.

The invention relates to a wind-concentrating type large flow haze-removing air purifying system, comprising a tower body and a wind-concentrating cover. A primary filter layer and a secondary absorption layer are arranged in the middle of the tower body; a haze air inlet is arranged at the side wall of the tower body below the filter layer; a clean air outlet is arranged at the top of the tower body; and the clean air outlet at the top of the tower body is communicated to the middle of the wind-concentrating cover. A water storage chamber is arranged at the bottom of the tower body; a submersible pump is arranged in the water storage chamber; a sprayer connected to the submersible pump is disposed between the primary filter layer and the secondary absorption layer. Haze-containing air enters the tower body through the haze air inlet and is purified through the filter layer by removing the haze. According to the invention, the wind-concentrating cover is used to increase air flow rate; filtered clean air in the tower body is pumped out in a self-absorption manner; and the wind-concentrating type large flow haze-removing air purifying system can work in gentle breeze, thereby increasing daily processing capacity of the air. The haze-containing air is subjected to two-stage filtration and water filtration, and thus a haze-removing purifying effect is significant. A power supply is provided to the submersible pump and an axial flow exhaust fan through a wind motor and a solar cell panel, thereby realizing automatic power supply.

The invention provides a self-power-supplying vehicle-mounted fresh aquatic product storage and transportation device. The device comprises an electric generator, a circulating water pump, an oxygen pump and a cooling water machine; the circulating water pump, the oxygen pump and the cooling water machine are all communicated with the electric generator; the front of the top of a storage and transportation tank is provided with a filter tank, the filter tank is internally and vertically provided with a plurality layers of filter plates, and the top of the filter tank is provided with a sealingcover; one end of the cooling water machine is communicated with the circulating water pump, the other end of the cooling water machine is connected into the storage and transportation tank through acooling water eduction tube, and the cooling water eduction tube extends upward to the equal height portion of the top of the filter tank and bends into the storage and transportation tank; the lowerportion of the front side of the filter tank is provided with a water outlet pipe communicated with the circulating water pump, the upper portion of the rear side of the filter tank is provided witha water inlet pipe communicated with the storage and transportation tank, and the water inlet pipe extends downward into storage water in the storage and transportation tank; the oxygen pump is provided with an oxygen ingress tube; a time delay power supplier; and the storage and transportation tank is provided with an overflow port. The self-power-supplying vehicle-mounted fresh aquatic product storage and transportation device has the advantages that the management of fresh aquatic products in the process of long-distance transport is very convenient, and the practicability is very high.

The invention relates to umbrellas, in particular to a shared umbrella. The umbrella comprises an umbrella surface, umbrella ribs, an umbrella handle, and a main control part. The main control part isused for supplying power to an internal storage battery. The umbrella further comprises a power generation module. The power generation module charges the internal storage battery. The umbrella is characterized in that a charging switch is arranged between the power generation module and the internal storage battery; the charging switch is linked with the umbrella ribs; and the charging switch istriggered when the umbrella ribs and the umbrella handle move to support the umbrella surface. According to the shared umbrella, the corresponding power generation module is started to generate powerfor charging the storage battery when the umbrella is opened, thereby optimizing control of the shared umbrella and reducing energy consumption.

The invention discloses an environmental energy collector and its early warning system and application method, relates to the field of micro energy technology and micro system, and solves the problem of inconvenient use of batteries and cables of sensing nodes in outdoor environments such as forests. The present invention includes that the rotating inner skeleton structure (7) converts rotational energy into electrical energy through a rotating-stationary friction group; the rotating-stationary friction group includes a comb-toothed metal electrode, a negative friction material layer (8) and a positive friction material layer ( 10), the positive friction material layer (10) is attached to the rotating inner skeleton structure (7), the two comb-tooth-shaped metal electrodes are staggered to surround multiple separation areas, and the negative friction material layer (8) is filled in multiple The blades in the partition area, the positive friction material layer (10) is attached to the blades. The invention utilizes green energy to realize independent power supply and independent operation.

The invention relates to an air guide structure and a baking and cooking device thereof, comprising an exhaust passage with an exhaust fan, the exhaust passage has an air inlet, a heat preservation cover and a heat preservation cover electrically connected with the exhaust fan are arranged in the exhaust passage. A thermoelectric power generation device, the heat preservation cover is arranged on the air inlet and an air outlet connected to the air inlet is opened on the cover wall, the thermoelectric power generation device is installed on the heat preservation cover, and the heat preservation cover has a heat conducting surface, the thermoelectric power generation device The cold end of the exhaust fan is opposite to the outlet of the exhaust fan, and the hot end of the thermoelectric power generation device is in contact with the heat transfer surface. The present invention can independently generate the electricity supplied to the exhaust fan through the thermoelectric power generation device, and can self-adaptively adjust the opening and closing of the power generation function according to the amount of hot gas discharged from the inner tank. With the operation of the fan, the cold end and the hot end of the thermoelectric power generation device can always maintain a certain temperature difference, so that the stable power generation of the thermoelectric power generation device can be realized and the efficiency of power generation can be improved.

The invention relates to a portable micro power generation device which comprises a spiral spring, bearings, a magnet support, framework inner side magnet clamping grooves, a lead groove, a first arc-shaped permanent magnet with an outer slope at the top end, a second arc-shaped permanent magnet with an outer slope at the top end, a silicon steel sheet stacking iron core, a fixed shaft, a wire groove, screws, a first coil, a second coil and a third coil. The silicon steel sheet stacking iron core, the fixed shaft provided with the lead groove, the first coil, the second coil and the third coil form a stator, the middle portions of the two ends of the magnet support are arranged on the fixed shaft through the bearings, the inner end of the spiral spring is fixed to the fixed shaft, the outer end of the spiral spring is fixed to the edge of the magnet support, the first arc-shaped permanent magnet with the outer slope at the top end and the second arc-shaped permanent magnet with the outer slope at the top end are correspondingly fixed to the two sides of the magnet support through the framework inner side magnet clamping grooves in the two ends of the magnet support, the magnet support is screwed through the screws to form a rotor, the two arc-shaped permanent magnets with the same geometrical shape are made of different isotropic magnetic materials, and the magnet support is made of aluminum alloy.

The invention relates to an autonomous power supply type water pump. The autonomous power supply type water pump comprises a base and a shell, wherein a motor is arranged on a top plate, a solar charging device is arranged on a bottom plate, a sealing cover for sealing a water inlet is arranged on the shell, a sensor is arranged on the sealing cover, a sealing plug is arranged on the shell, a connecting groove is formed in a solar charging assembly, and a control assembly is arranged between the connecting groove and the sealing plug. The autonomous power supply type water pump has the advantages that when the sensor arranged on the sealing cover detects that a water inlet pipe is mounted at the water inlet, the solar charging device is triggered to be pushed out of the bottom plate, at the moment, the solar charging device receives solar energy to start charging, and after a water outlet pipe is mounted, an operator only needs to connect the sealing plug with the connecting groove, so that a pin is in contact with a switch to trigger the solar charging device to be switched on, the autonomous power supply of the motor is realized, normal operation of the motor is ensured, the wrong start of the motor in the mounting process can be prevented, the power supply of low voltage at the beginning of charging of the solar charging device to the motor is also avoided, and the overall service life is prolonged.

The invention relates to an air guide structure and a baking and cooking device thereof. The air guide structure comprises an exhaust passage with an exhaust fan, the exhaust passage is provided withan air inlet, a heat preservation cover and a temperature difference power generation device electrically connected with the exhaust fan are arranged in the exhaust passage. The heat preservation cover covers the air inlet, an air outlet communicated with the air inlet is formed in the cover wall of the heat preservation cover, the temperature difference power generation device is installed on theheat preservation cover, the heat preservation cover is provided with a heat conduction face, the cold end of the temperature difference power generation device is opposite to the air outlet of the exhaust fan, and the hot end of the temperature difference power generation device makes contact with the heat conduction face. The electric quantity supplied to the exhaust fan can be autonomously generated through the temperature difference power generation device; in addition, after the temperature difference power generation device starts to generate power, the cold end and the hot end of the temperature difference power generation device can always keep a certain temperature difference along with work of the exhaust fan, so that stable power generation of the temperature difference power generation device can be achieved, and the power generation efficiency is improved.

The invention discloses a main power supply circuit control method. A main power supply circuit converts alternating current into direct current through a rectification-limiting module and outputs thedirect current to a load, and the rectification-limiting module, an alternating current power supply, the main power supply circuit, an auxiliary power supply circuit and a power supply control unitare involved in the method. The main power supply circuit comprises a charging capacitor, a first switch tube, a second switch tube and a power supply loop; the first switch tube and the second switchtube are sequentially connected to a main switch circuit in series, and the power supply loop is connected with the first switch tube and the charging capacitor. An isolating switching circuit is connected between the rectification-limiting module and the alternating current power supply in series; an output contactor is switched off, non-controlled rectification is conducted by the rectification-limiting module, and direct-current voltage is output to the load. By means of the control method, the charging loss is greatly reduced, convenience is brought to integration, the size of a control circuit is reduced, output over voltage faults are avoided, the reliability of the load is improved, and the duration time of the load is increased.

The invention relates to an environmentally friendly and energy-saving doorbell with independent power supply. Composed of push rod, key sleeve, spring, annular backing plate, key ferrule, latch, fixed plate, annular baffle, doorbell box, spherical contact switch, oscillating circuit, etc., it is characterized in that: the lower end of the power generation device is equipped The ring forms a circular truncated bearing, and bearing gears are made on the outer slope surface. There are guide grooves with guide grooves in the middle relatively symmetrically on the bottom of the doorbell frame box and the bottom surface of the doorbell frame box. A guide hammer is placed between the upper and lower guide grooves. One end of the push rod gear is a guide hammer, and the other end is a convex push rod. The push rod gear is coupled with the bearing gear in the process of being pushed to drive the power generation device to generate electricity. When the hammer is in conflict, the spherical contact switch is closed, and the circuit is connected to vibrate and sound.

The invention discloses an agricultural farmland environment monitoring device, and relates to the field of agricultural environment information acquisition. The agricultural farmland environment monitoring device comprises a device main body, a display screen, a USB interface, a buzzer, a flashing light, a rainfall sensor, a temperature sensor, a solar panel, a solar sensor, a storage battery, awireless module, a signal enhancement device, a heat dissipation port, a network interface, a wind speed sensor, a power switch, a humidity sensor, a controller, a converter, a single-chip microcomputer and an alarm system. The beneficial effects of the agricultural farmland environment monitoring device are that the agricultural farmland environment monitoring device integrates rainfall, temperature, sun, wind speed and humidity environment condition monitoring functions, can achieve the autonomous power supply through solar energy, and is safer and more environment-friendly.

The invention discloses a cloud communication intelligent curtain and a control method. The intelligent curtain comprises a curtain body (25), a sliding rod (2), a mounting bracket (1), a cloud communication assembly (7), a control device (6), a driving device (5) and a local interaction device (9); a driving guide rod is transversely arranged on the mounting bracket (1); the driving device (5) ismounted at one end of the driving guide rod; the control device (6) is in communication connection with the driving device (5), the cloud communication assembly (7) and the local interaction device (9) respectively. According to the intelligent curtain control method, the driving device (6) is controlled through a control assembly to achieve the automatic opening and closing state of the curtain,human intervention is not needed, no extra noise is generated during use, rest of a user is not affected, the overall structure is simple, and implementation is easy.

The invention relates to a breeze energy collecting device suitable for low wind speed and multiple wind directions, and the device is technically characterized in that the device comprises a windmill, a spring box, a concave part and a cantilever beam, wherein a piezoelectric plate is adhered to the cantilever beam; the windmill is rotationally connected with a spring box, the spring box enables elastic potential energy stored in the spring box to cause vibration of the cantilever beam through a concave part, and then the piezoelectric plate deforms to generate electric energy. Aiming at the condition that more and more wireless sensors are distributed on wind power plants, transformer substations and power transmission lines which are sparsely populated or complex in environment, the problems of electric energy supply and energy management of massive sensors can be effectively solved, and one-time deployment and long-term use can be basically realized.

The invention discloses a high-brightness solar searchlight in the technical field of lighting, comprising a V-shaped support, a solar battery panel, a charging controller, a storage battery, a light-emitting lamp body, a movable supporting assembly part, a cylindrical seat, a moving frame; and a moving frame Universal wheels are installed on the lower side, the cylindrical seat is installed vertically on the mobile frame, and the V-shaped support is installed on the cylindrical seat in a longitudinally rotatable manner through the support shaft; In the downward position, when the illuminated surface of the luminous lamp body is in the lighting position, the solar panel is just in the downward position; the supporting soft cloth is packaged inside the inner mounting hole and is facing and supporting the luminous lamp when the solar panel is in the sunny position body, the support frame is installed on the movable support and is facing the position of the light frame when the solar panel is in the sun-facing position and supports the light frame. It can realize independent power supply, and can protect the luminous lamp body during power generation.

The invention discloses an ultrasonic wave wind speed and wind direction measuring device of a wind generating set, comprising an ultrasonic wave wind speed and wind direction meter and a wind generating set cabin controller, wherein the ultrasonic wave wind speed and wind direction meter comprises an ultrasonic wave transceiver module, a central control unit, a solar energy accumulation power supply module and a ZigBee wireless communication module; the ultrasonic wave transceiver module collects the wind speed and the wind direction under the control of the central control unit; the collected wind speed and wind direction data is sent to the wind generating set cabin controller via the ZigBee wireless communication module so as to control the wind generating set; the solar energy accumulation power supply module supplies power for the whole ultrasonic wave wind speed and wind direction meter by utilizing generated electrical energy; and wireless communication and the solar energy accumulation power supply module are used for respectively realizing communication and automatic power supply. The ultrasonic wave wind speed and wind direction measuring device has the characteristics of low energy consumption and the like, is simple to install and simple and convenient to maintain, is especially suitable for field situations with severe environment and difficult construction maintenance, and communication power supply circuits do not need to be laid.

The invention relates to an autonomously powered water pump, comprising a base and a housing, a motor is provided on the top plate, a solar charging device is provided on the bottom plate, a sealing cover for sealing the water inlet is provided on the housing, a sensor is provided on the sealing cover, and the housing There is a sealing plug on the body, a connecting groove is arranged on the solar charging component, and a control component is arranged between the connecting groove and the sealing plug; the advantage of the present invention is that the trigger is triggered when the sensor installed on the sealing cover detects that the water inlet is installed with a water inlet pipe. The solar charging device is pushed out from the bottom plate. At this time, the solar charging device receives solar energy and starts to charge. When the outlet pipe is installed, the operator only needs to connect the sealing plug with the connection groove, so that the pins and the switch are in contact to trigger the solar charging device. Through, so as to realize the independent power supply of the motor, ensure the normal operation of the motor, prevent the false start of the motor during the installation process, and also avoid the low voltage of the solar charging device to supply power to the motor at the beginning of charging, and improve the overall service life.

In order to overcome the defects that ship name number information of an existing ship name label plate cannot be captured by a monitoring camera and the existing ship name label plate cannot be identified on foggy day and at night, the present invention discloses an LED ship name label plate which has an active light emitting function and can be supplied with power by a solar panel. Particularly, the LED ship name label plate comprises a prismatic lamp box and ship name numbers formed around the lamp box; the ship name numbers are made of reflective transmitting films and are irradiated by backlight LEDs; the solar cell panel is arranged at the top of the lamp box; and a solar cell is arranged in the lamp box for supplying power to the LEDs.

The invention provides an energy-saving page-turning projection pen which is composed of a projection pen shell, an energy picking pressing handle, a spring, a circular hole, a gear push rod, an innerpartition plate, a circuit board, a gear, a self-lubricating multi-layer composite bearing, a mechanical energy battery generator fixed shaft, a limiting plate, a D-shaped limiting hole, a projectionpen key and a volute spring of a mechanical energy battery. A self-lubricating multilayer composite bearing is adopted on the basis of the structure of the ZL201410221237.2 energy-saving environment-friendly projection pen, linkage components are reduced, rotation is more reliable, mechanical energy picking is more sufficient, sufficient electric energy is provided for the projection pen, autonomous power supply and long-time uninterrupted work are achieved, and the projection pen is simple in structure, reliable, economical and practical.