79results about How to "No power consumption" patented technology

The invention discloses a material head recycling device for plastic sealing strip extrusion, and relates to the technical field of plastic recycling. Comprising a recycling installation part, a discharging control part is installed on the recycling installation part, and a collecting part is installed on the recycling installation part; the collecting piece is used for collecting material heads; the discharge control piece is used for cooling the scraping material head; an extrusion guide piece is mounted on the collecting piece; the extrusion guide part is used for guiding and discharging an extruded material strip; a fragmentation control piece is mounted at the bottom of the collecting piece; according to the structure, the stub bar can be directly recycled and extruded again for use after being extruded once, so that the discharging quality is ensured, and meanwhile, the waste of the stub bar is avoided; the invention discloses a material head recycling device for plastic sealing strip extrusion, and aims to solve the problems that the existing material head recycling device for plastic sealing strip extrusion is inconvenient to mix, recycle and reuse material heads and particles in an extruder hopper, the material heads and the particles are recycled uniformly after being cut off, the material heads are wasted, and the economic cost is influenced by accumulation of a large number of material heads.

The utility model discloses an immersed energy storage battery cabinet which comprises a sealed cabinet body, a plurality of battery packs, a vapor chamber assembly and a heat exchange assembly, the sealed cabinet body is provided with a liquid storage cavity, and insulating liquid is stored in the liquid storage cavity; the battery pack is inversely placed in the liquid storage cavity, and one side, provided with the tabs, of the battery pack can be immersed in the insulating liquid; the vapor chamber assembly is attached to the battery pack; the heat exchange assembly comprises an air conditioner and a water tank, the water tank is provided with a plurality of heat exchange pipelines, at least two heat exchange pipelines located at the two ends communicate with each other and communicate with an inlet and an outlet of the air conditioner correspondingly, the air conditioner is used for introducing a heat exchange medium into the heat exchange pipelines, and the water tank makes contact with the vapor chamber assembly to conduct heat exchange with the battery pack. According to the utility model, the usage amount of insulating liquid is reduced by inverting the battery pack, meanwhile, the heat of the battery is conducted out by adopting the uniform temperature plate assembly in a conduction manner, and the battery system has the advantages of no pump and no liquid circulation, no mechanical wear, long service life of the system, low power consumption and the like in a real sense.

The invention relates to an ocean temperature difference energy driven buoy autonomous power generation hydraulic system and a working method thereof, and belongs to the technical field of hydraulic systems. The power generation hydraulic system comprises a rubber leather bag, an energy accumulator, a pilot control valve bank, a turbine shaft assembly, a power generator, an oil tank, an upper pressure-resistant shell, a lower pressure-resistant shell and an integrated end cover, the upper pressure-resistant shell and the lower pressure-resistant shell are connected in a sealed mode through the integrated end cover, and the pilot control valve bank, the turbine shaft assembly and the oil tank are arranged on the upper side of the integrated end cover; the turbine shaft assembly is connected with a generator, a rubber bag is arranged on the lower side of the integrated end cover, an energy accumulator is arranged in the rubber bag, the space between the energy accumulator and the rubber bag is filled with hydraulic oil, and the space between the rubber bag and the lower pressure-resistant shell is filled with a phase change working medium. The pilot control valve group is designed, the opening pressure is set by an external mechanical spring, an oil way is automatically conducted after the opening pressure is reached, the energy loss between an oil inlet and an oil outlet is extremely small, and the advantages of no electric energy consumption and low failure rate are achieved.

A mechanical broadband continuous phase adjustable intelligent metasurface system structure disclosed by the present invention comprises an intelligent metasurface and a mechanical control unit, the intelligent metasurface comprises a plurality of intelligent metasurface units, the plurality of intelligent metasurface units are arranged in an array mode, and each intelligent metasurface unit comprises a multi-layer structure, a metal copper plate, a square dielectric substrate, a cylindrical dielectric substrate and a metal copper pattern are sequentially arranged from bottom to top. Circular small holes are formed in the centers of the metal copper plate and the square dielectric substrate; the mechanical control unit comprises a plurality of steering engines, the steering engines are connected with the intelligent metasurface unit through metal columns, one ends of the metal columns are connected with output shafts of the steering engines, the other ends of the metal columns are inserted into the small round holes, the metasurface unit is driven to rotate through continuous rotating motion of the steering engines, and therefore the reflection phase is continuously adjustable within the range of 0-180 degrees. The adaptability and the efficiency of the intelligent metasurface in different communication environments are improved, and the reliability and the stability of mechanical regulation and control are greatly improved.

The invention relates to a heat dissipation structure of a high-power load of an unmanned aerial vehicle. The heat dissipation structure comprises an inner heat dissipation plate, an outer heat dissipation plate, a front ventilation opening, a rear heat dissipation opening, an inner heat dissipation flow channel and an outer heat dissipation flow channel. An inner heat dissipation plate and an outer heat dissipation plate are arranged on the two corresponding sides of the high-power load correspondingly, and the inner heat dissipation plate is located in the unmanned aerial vehicle body; the outer heat dissipation plate penetrates through the side wall of the unmanned aerial vehicle body and extends out of the unmanned aerial vehicle body; in the forward flight direction of the unmanned aerial vehicle, front ventilation openings and rear heat dissipation openings are symmetrically formed in the positions, on the front side and the rear side of the high-power load, of the side wall of the unmanned aerial vehicle body, the front ventilation openings, the outer heat dissipation plates and the rear heat dissipation openings communicate to form outer heat dissipation flow channels, and the front ventilation openings, the inner heat dissipation plates and the rear heat dissipation openings communicate to form inner heat dissipation flow channels. According to the cooling device, cooling equipment does not need to be additionally arranged, the ideal cooling effect can be achieved by conducting forced air cooling heat dissipation through the designed structure, the occupied space and loads are reduced, and the cooling device can serve as a preferable heat dissipation mode for the loads of the unmanned aerial vehicle.

A push block and a reset spring are arranged on a handle of an operation assembly of the electric endoscope cutting anastomat, and a driving groove is formed in the lower bottom face of a driving sliding block of a driving piece. And the push block on the handle is inserted into the driving groove of the driving slide block. The reset spring drives the handle to rotate in the opening direction between the handle and the anastomat body, and the driving piece drives the nail bin assembly and the nail anvil assembly to execute the opening action. The handle overcomes the acting force of the reset spring to rotate in the closing direction with the anastomat body, and then the driving piece drives the nail bin assembly and the nail anvil assembly to execute the closing action. The driving switch controls the motor assembly to drive the driving groove of the driving sliding block to move forwards, so that the push block of the handle is separated from the driving groove of the driving sliding block and then is pressed on the lower bottom face of the driving sliding block under the acting force of the reset spring, and the handle does not rotate any more. The motor assembly drives the driving groove of the driving sliding block to move backwards to the push block of the handle, and the push block of the handle is inserted into the driving groove of the driving sliding block again under the acting force of the reset spring.

The invention discloses an intelligent water meter and a water meter metering data transmission method and system, which are applied to the field of intelligent water meters and comprise the steps that when water flow pushes an impeller to rotate, a permanent magnet generates a periodic alternating magnetic field; the magnetic induction energy taking element is used for generating pulse energy when the periodic alternating magnetic field is generated; the water flow meter is used for obtaining water flow metering data; the energy conditioning module is used for processing the pulse energy to obtain electric energy with stable voltage; the electric energy is used for supplying power to the storage module, the data identification module and the wireless transmission module; the storage module is used for storing water flow metering data; and the wireless transmission module is used for transmitting the water flow metering data in the storage module to a client. Electric energy generated by the magnetic induction energy taking element is used for supplying power to the wireless transmission module, the data identification module and the storage module, and battery-free water meter metering and data transmission are achieved. And a battery-free, maintenance-free and power-consumption-free solution is provided for the flow metering terminal.

A distributed natural ventilation air purification system for a TBM tunnel relates to the technical field of TBM engineering, and includes a distributed dust suction pipe, a chimney, and an air collecting pipe. The chimney is vertically arranged outside the tunnel through a fixing device, a dust collecting bucket is arranged at the bottom of the chimney, a dust outlet is arranged at the bottom of the dust collecting bucket, and a dust collecting box is connected to the dust outlet. The distributed dust suction pipe is composed of a plurality of dust suction pipes, which are evenly distributed on the side wall of the tunnel through a bracket and extend into the tunnel along the direction of the tunnel. The dust suction pipe is provided with a plurality of air inlet pipes, the outer end of the dust suction pipe is connected to the chimney, an inclined mesh filtering mechanism is also provided in the chimney, the air collecting pipe is installed on the top of the chimney through a thrust roller bearing, and the air collecting pipe is interconnected with the chimney, and a guide wing is also provided on the top of the air collecting pipe. The present invention provides a distributed natural ventilation air purification system for a TBM tunnel that can purify the air in the TBM tunnel as a whole, does not consume electricity, and does not waste resources.

This utility model belongs to the field of fuel cells, specifically relating to a hydrogen subsystem for a hydrogen fuel cell. It includes a hydrogen inlet pipeline, a proportional valve or hydrogen injector, a fuel cell stack, a vortex tube, a gas-water separator, and a hydrogen circulation device. The hydrogen inlet pipeline is sequentially connected to the proportional valve or hydrogen injector and the fuel cell stack. The hydrogen outlet of the fuel cell stack is connected to the vortex tube. The vortex tube has two outlets, one connected to the gas-water separator and the other connected to the hydrogen circulation device. The gas outlet of the gas-water separator is connected to the hydrogen circulation device. The hydrogen circulation device is connected to the hydrogen inlet of the fuel cell stack. In this utility model, the cooling effect of the vortex tube allows the liquid water in the returning hydrogen to condense rapidly, generating more liquid water and achieving better liquid water separation.

A robot joint closed-loop braking device relates to the technical field of robot joint braking, comprising a motor body and a coaxial reducer body, and also comprising a mounting seat, a worm wheel, a worm and a power transmission device; the motor body is correspondingly connected to the coaxial reducer body in a transmission manner; the output shaft of the coaxial reducer body is transmission-connected with a worm wheel; the mounting seat is correspondingly and tightly connected to one end of the motor body casing, the mounting seat is rotatably connected to a worm that meshes with the worm wheel, and the reduction ratio of the worm wheel and the worm is consistent with the reduction ratio of the coaxial reducer body, one end of the worm is correspondingly connected to the motor shaft of the motor body through a disconnectable power transmission device, and the transmission ratio between the motor shaft of the motor body, the power transmission device and the worm is 1:1; the present invention effectively solves the problems of poor reliability, high energy consumption and large size of the existing braking system.

A low-power-consumption power switch control circuit comprises a first MOS tube, a second MOS tube, a third MOS tube, a first resistor and a second resistor, wherein the first resistor and the second resistor are connected between the second MOS tube and the third MOS tube in series. The first resistor and the second resistor are connected with a grid electrode of a first MOS tube. The first MOS tube is connected in series between the input end and the output end and is used for controlling the on-off of a power supply; the source electrode of the second MOS tube is connected with the input end, and the grid electrode of the second MOS tube is connected with a second control signal end; the third MOS tube is grounded, and the grid of the third MOS tube is connected with a first control signal end; the first control signal end and the second control signal end control the second MOS tube to be cut off when the first MOS tube is switched on by adjusting the level, and the voltages at the two ends of the first resistor and the second resistor are equal. According to the invention, when the power switch is turned on, the on-resistor does not generate extra power consumption.

The invention discloses a battery heat preservation control device and a control strategy. According to the technical scheme, the battery heat preservation control device is characterized by comprising a conventional battery pack, a bypass BMS, a low-temperature-resistant battery, a temperature control management module, a heating film and at least two paths of temperature sensors; the conventional battery pack comprises a main BMS (Battery Management System) and a main battery cell; the bypass BMS is electrically connected with the low-temperature-resistant battery, the bypass BMS is in communication connection with the temperature control management module, and the low-temperature-resistant battery supplies power to the temperature control management module and the heating film; the heating film is attached to the surface of the main battery cell, and the at least two paths of temperature sensors are respectively arranged at different positions of the main battery cell so as to monitor the temperature of the main battery cell. The system supplies power independently and does not consume the power of a main battery. The device is accurate in temperature control, improves the safety of the battery, avoids local overheating or insufficient heating, and improves the use safety of the battery.

The utility model discloses a workbench positioning and locking mechanism which is applied to an exchange workbench of a turning plate machining center, a wedge-shaped guide rail is installed on the upper portion of a working trolley, electric permanent magnetic chucks are symmetrically installed in the middle of the working trolley, a V-shaped eccentric wheel is installed on the lower portion of the working trolley, the workbench is installed on the working trolley in a buckled mode, and a displacement sensor is installed between the workbench and the working trolley. The utility model relates to the technical field of turning plate machining center exchange workbenches, the wedge-shaped guide rail is adopted for positioning, the positioning of an inclined plane and a vertical plane is completed by using gravity, and then the electric permanent magnetic chuck is used for locking, so that the work efficiency is improved, and the work efficiency is improved. The positioning process is stable and reliable, the workbench is free of displacement in the locking process, the locking process is stable, and the positioning precision and the repeated precision are high.

The invention belongs to the field of organic waste resource utilization, and particularly relates to a system for reducing ammonia emission in compost and producing a nitrogen-rich organic fertilizer and a use method of the system. Comprising a condenser pipe, a composting reactor main body, a gas flowmeter and an aeration pump, the condensation pipe is communicated with the top of the composting reactor main body; the composting reactor main body is connected with the gas flow meter; the gas flow meter is connected with the aeration pump; the method is low in operation cost, good in ammonia emission reduction effect and suitable for large-scale application, and the nitrogen content in compost products can be remarkably increased.

The present invention provides a data interface multiplexing control circuit, comprising a data interface signal input terminal for connecting to an external data interface pin; a level output terminal for connecting to a switch pin of a module; a feedback input terminal for connecting to a working signal terminal of the module; a signal rectification unit connected to the data signal input terminal for rectifying the level jump signal of the data interface signal input terminal into a constant high level signal; a feedback control unit connected to the feedback input terminal and also connected to the signal rectification unit, capable of converting the constant high level signal into a constant low level signal through bypass grounding; an output control unit connected to the level output terminal and also connected to the signal rectification unit and the feedback control unit. The advantages of the present invention are: realizing the control of power-on or reset of the peripheral module without redesigning the mainboard, saving design space; and the present invention does not generate additional power consumption when not working.

The invention discloses a mechanism for measuring the oil temperature of the top layer of a transformer, and relates to the technical field of measuring devices. The mechanism comprises a main board, wherein an empty slot is provided inside the main board, and a gear is rotatably installed on the inner wall of the empty slot, and one end of the gear extends to the outside of the main board and is installed with a sub-board, and a receiving slot is provided at the lower end of the sub-board, and a temperature sensor is arranged in the receiving slot. The sub-board of the device can rotate around a connection, and when the device is extended into the interior of the transformer, the sub-board can be rotated so that the temperature sensor at the end of the sub-board is close to the coil, and then when the extension entrance is opened, the distance between the extension entrance and the coil is the same as the length of the sub-board, and then there is no need to open the extension entrance around the coil, so as to avoid the coil being damaged by a hole turning machine when the extension entrance is opened, thereby protecting the safety of the transformer, and utilizing a specific component to allow the temperature sensor to extend from the receiving slot during the rotation of the sub-board, so that the various components of the device can be linked, without consuming electricity or energy, and saving resources.

The utility model discloses an unpowered liquid feed anti-sinking pipe which comprises a cylinder with two open ends and a guide blade installed in the cylinder, and limiting steps are arranged in the two ends of the cylinder respectively. The number of the guide blades is at least one, one long edge of each guide blade is fixedly connected to the inner surface of the cylinder in the axial direction, and the guide blades are twisted clockwise or anticlockwise. Specifically, the number of the guide blades is two, and the two guide blades are symmetrically distributed in the cylinder. According to the utility model, liquid feed flows through the interior of the cylinder, rotates while flowing under the diversion action of the two guide blades, and finally flows in the conveying pipe in a spiral flowing manner, so that the problem of sedimentation of high-density substances in the liquid feed is effectively solved.

The invention provides an automotive liquid hydrogen vaporization hydrogenation system and hydrogenation method, belongs to the technical field of hydrogenation, and aims to reduce energy consumption and save cost, the automotive liquid hydrogen vaporization hydrogenation system comprises a liquid hydrogen storage tank, a plurality of hydrogen storage bottles, a vaporization unit, a hydrogenation unit and a control unit; the liquid hydrogen storage tank is connected with the first ends of the multiple hydrogen storage bottles, the first ends of the hydrogen storage bottles are connected with the output end of the vaporization unit, the second ends of the hydrogen storage bottles are connected with the input end of the vaporization unit, the second ends of the hydrogen storage bottles are connected with the input end of the hydrogenation unit, and the output end of the hydrogenation unit is communicated with the hydrogen storage tank; the control unit is configured to control the liquid hydrogen storage tank to be communicated with at least one hydrogen storage bottle in a liquid hydrogen refilling mode; in the vaporization pressurization mode, at least one hydrogen storage bottle is controlled to be communicated with the vaporization unit, so that liquid hydrogen in the hydrogen storage bottle enters the vaporization unit to be vaporized and pressurized into hydrogen, and then the hydrogen returns to the hydrogen storage bottle; in the hydrogenation mode, the hydrogenation unit is controlled to be communicated with the hydrogen storage bottle and the hydrogen storage tank; and the hydrogenation unit is configured to input hydrogen into the hydrogen storage tank.

The present application provides an information processing method, device and electronic device. If a power adapter is connected to an electronic device, the power supply parameters provided by the power adapter are controlled as the working power supply of the electronic device; the battery of the electronic device is detected; if the battery is in a discharge state, the operation of the electronic device is adjusted based on a target strategy until the battery stops discharging. In this solution, a target strategy is set. When the electronic device receives the power supply parameters provided by the power adapter as the working power supply, the battery in the electronic device is in a discharge state. The operation of the electronic device is adjusted based on the target strategy to achieve the purpose of stopping the battery discharge, ensuring that when the electronic device is connected to the power adapter, only the power provided by the power adapter is used, and the power in the battery is not consumed, thereby extending the use time of the electronic device.

The invention belongs to the technical field of semiconductor devices, and particularly relates to a preparation method of a semiconductor X-ray detector, by adopting a PNN type double built-in electric field configuration with the free electron density increasing step by step, the intensity of built-in electric fields is enhanced, meanwhile, the electron transporting capacity of the built-in electric fields is expanded, and under the condition that no external power supply exists, the performance of the X-ray detector is improved. Self energy supply is achieved through the Compton effect and the photovoltaic effect of the X-rays, and detection of the X-rays is completed. A built-in electric field of the detector is strong enough, absorption of X-ray energy and transport of carriers are better than those of a traditional X-ray detector, and detection is sensitive; as the detector is not provided with a power supply, the detector has the technical effects of no power consumption, low failure rate, light weight, small size and convenience in carrying. The invention also provides a non-transitory readable recording medium storing the program of the method and a system comprising the medium, and the program can be called through a processing circuit to execute the method.

The utility model relates to the field of steam boxes, and provides a steam box which comprises a base body, a water tank, a box cover, a magnetic attraction body, a permanent magnet and an electromagnetic assembly, a containing cavity is limited in the base body, the water tank is arranged in the containing cavity, the box cover is movably arranged on the base body and corresponds to the water tank in position, one of the magnetic attraction body and the permanent magnet is fixed to the box cover, and the other one of the magnetic attraction body and the permanent magnet is fixed to the electromagnetic assembly. The permanent magnet is used for attracting the magnetic attraction body to close the box cover, and the electromagnetic assembly is used for being powered on to generate a magnetic field to enable the permanent magnet to release the magnetic attraction body. The magnetic attraction body can be attracted by the permanent magnet to keep the box cover closed, power consumption is avoided, and energy is saved. And the permanent magnet can release the magnetic attraction body only by instantly electrifying the electromagnetic assembly, so that the energy consumption is low. The box cover is automatically unlocked by electrifying the electromagnetic assembly, so that the box cover can be opened, operation of children can be prevented, the risk that the children open the box cover to make contact with the water tank is reduced, and the safety of the steam box is improved.

The application belongs to the technical field of special robot walking and safety protection, and proposes a multiple redundancy safety protection system of a wind power tower robot, which comprises a driving unit, an adsorption unit and an integrated cooperative control unit.The driving unit is used to drive the robot to walk inside the wind power tower.The adsorption unit is used to adsorb the robot on the inner wall of the wind power tower, and provide the friction force between the driving unit and the inner wall of the wind power tower.The redundancy safety protection unit is used to prevent the high-altitude falling, equipment collision and component damage of the wind power tower robot.The integrated cooperative control unit is used to realize the integrated cooperative control of the driving unit, the adsorption unit and the redundancy safety protection unit, and to guarantee the absolute safety and stability of the equipment during high-altitude operation through the driving unit, the adsorption unit, the redundancy safety protection unit and the integrated cooperative control unit, and to realize real-time state monitoring, intelligent fault emergency treatment and guarantee the stable and safe operation of the equipment.

The invention provides a vehicle steering system, a control method of the vehicle steering system and a vehicle, relates to the technical field of vehicle steering, and aims to solve the technical problem of poor energy conservation and environmental protection during steering of the vehicle steering system.The vehicle steering system comprises a steering mechanism and an energy recovery device, and the steering mechanism comprises a steering rotating part and a steering moving part; the energy recovery device is arranged on at least one of the steering rotating piece and the steering moving piece and comprises a damping mechanism, and the damping mechanism is configured to provide damping torque for the steering mechanism. The invention aims to save electric energy so as to achieve the purposes of energy conservation and environmental protection.

The utility model discloses a pH measuring device for a desulfurizing absorption tower, which comprises the desulfurizing absorption tower and a pH electrode measuring cell, and the desulfurizing absorption tower is communicated with the pH electrode measuring cell through an introduction pipe; a pH electrode is arranged in the pH battery measuring cell, is fixed at the top of the pH electrode measuring cell and is inserted into the slurry of the pH electrode measuring cell; an outflow opening is formed in the tower wall of the bottom of the desulfurizing absorption tower, and a leading-in pipe is downwards and obliquely led into a leading-in opening in one side wall of the pH battery measuring cell from the outflow opening; the horizontal height of the outlet is higher than that of the inlet; and the other side wall of the pH battery measuring cell is provided with an overflow port. According to the invention, 24-hour uninterrupted sampling is realized, erosive wear of a pH electrode glass bulb caused by high outlet pressure of a gypsum removal pump is avoided, the service life of the electrode is prolonged, and time, space and temperature consistency of manual sampling and system automatic sampling is also realized.

This utility model relates to the field of electronic circuit technology, specifically to an over-temperature protection circuit for a power-free voltage clamping element. It includes: a voltage clamping element; and a normally open temperature control switch, the temperature-sensing part of which is in close contact with the voltage clamping element, and its contacts are connected in parallel with the voltage clamping element. When the voltage clamping element heats up to the activation temperature of the temperature control switch due to current flow, the temperature control switch closes, and the current is shunted through the temperature control switch, causing the voltage clamping element to stop working and cool down. When the temperature drops to the reset temperature, the temperature control switch opens, and the voltage clamping element resumes operation. This utility model ensures that the voltage clamping element can normally absorb transient overvoltages by opening the temperature control switch. When continuous overvoltage or frequent surges cause the clamping element temperature to rise to the activation threshold of the temperature control switch, the current is shunted through the temperature control switch, and the clamping element stops working and cools down due to the reduced current. When the temperature drops to the reset threshold, the temperature control switch opens, and the clamping element resumes operation, forming a cyclic protection.

A cylindrical cam is arranged in an operation assembly of an electric endoscope anastomat. A spiral groove and a linear groove are formed in the cylindrical cam. A first spiral groove and a second spiral groove are arranged in the spiral grooves. And the spiral direction of the first spiral groove is opposite to that of the second spiral groove. The front end of the first spiral groove and the front end of the second spiral groove are connected and communicated with each other. And the front end of the linear groove at the rear part of the cylindrical cam is connected and communicated with the rear end of the first spiral groove and the rear end of the second spiral groove. The handle drives a driving protruding block of a driving piece inserted into a linear groove of the cylindrical cam to move from the front end of the linear groove to the rear end of the linear groove, so that the driving piece drives the nail bin assembly and the nail anvil assembly to execute the opening action. The handle drives a driving protruding block of a driving piece inserted into a linear groove of the cylindrical cam to move from the rear end of the linear groove to the front end of the linear groove, so that the driving piece drives the nail bin assembly and the nail anvil assembly to complete the closing action. The motor assembly drives the cylindrical cam to rotate in the anastomat body. After the driving switch is switched on, the motor assembly is controlled to drive the cylindrical cam to rotate in the anastomat body in the forward direction.

The application discloses a special safety protection frame for geological survey, which comprises a support assembly for installing and supporting a total station, the support assembly being fixedly installed on a pre-buried concrete foundation; a plurality of solar photovoltaic panel assemblies for providing electric energy for the equipment, the plurality of solar photovoltaic panel assemblies being fixedly installed on both sides of the support assembly through two mounting columns; and a protective cover for protecting the total station in bad weather. The special safety protection frame for geological survey can protect the total station through the protective cover, avoid blocking the 360-degree scanning visual angle of the total station, clean the surface of the photovoltaic panel of the solar photovoltaic panel assembly for supplying power to the equipment, and reduce the influence of dust on the power generation efficiency of the solar photovoltaic panel assembly.

The utility model discloses a charging control circuit and portable power source. The charging control circuit includes: battery, switch module, comparison circuit, voltage conversion circuit and connector, the first input of comparison circuit is connected with the power port of connector, and the second end of comparison is connected with reference voltage, and the output of comparison circuit is connected with the control end of switch module, and comparison circuit is used for controlling the conduction or shutdown of switch module, the first end of switch module is connected with battery, and the second end of switch unit is connected with the input of voltage conversion circuit, the input of voltage conversion circuit is connected with the power port of connector, and the output of voltage conversion circuit is connected with load. The utility model discloses technical scheme can cut off the power supply loop of battery under the condition of having external power supply connection and the full charge of battery, does not consume the battery capacity, avoids the user misjudgment of the battery not full charge.

The utility model belongs to the technical field of garden plant breeding, and particularly relates to a garden plant breeding device which comprises a breeding assembly, the breeding assembly comprises a water storage disc, a breeding assembly and a breeding assembly, and the top end of the water storage disc is provided with a supporting groove; the breeding tray is placed in the supporting groove; the plurality of isolating strips are fixed on the breeding tray in a criss-cross manner and are used for forming a plurality of independent breeding grids, and air holes are formed in the bottom surface of each breeding grid; the water storage disc and the breeding tray are utilized to form the breeding assembly, the breeding tray is provided with a plurality of mutually independent breeding grids, different seedlings cannot influence one another, breeding efficiency is higher, nutrient solution is stored in the water storage disc and the water storage gallery, nutrition can be supplemented to the seedlings in real time, extra power consumption is not needed, and cost is lower.