92results about How to "Guaranteed working hours" patented technology

The invention discloses a PH value monitoring wireless sensing network (WSN) node device for preventing secrete drainage of sewage and a monitoring method. The PH value monitoring WSN node device comprises a floating ball floating in water in a sealed manner and a square shell which is fixedly connected with the bottom of the floating ball and is immersed in the water, wherein an antenna bracket table and a communication antenna are fixedly arranged in an upper half ball cover; a charging interface and a power switch are arranged on the antenna bracket table; a circuit board is fixed at the bottom in a lower half ball cover; a water storehouse is arranged at the bottom in the square shell; a water feeding storehouse is arranged on one side of the upper part of the water storehouse; a magnet valve is arranged between the water feeding storehouse and the water storehouse; the lower end of a PH value sensor extends into and is suspended in the water feeding storehouse; an electromagnet bracket fixed on the inner wall of the square shell is arranged on the upper part in the square shell; an electromagnet is supported on the electromagnet bracket; the upper end of a spring is fixedly connected with the electromagnet bracket, and the lower end of the spring is connected with the magnet valve just under the electromagnet; and when the PH value of a target water domain reaches an abnormal alarm threshold value, the valve can automatically open and collect samples with low water quality.

The invention provides a method and system for controlling the switching-on threshold value and the switching-off threshold value of a brake vacuum pump. The method comprises an information acquiring step and a threshold value setting step. According to the information acquiring step, at least the current vehicle speed information and brake information are acquired. According to the threshold setting step, the switching-on threshold value and the switching-off threshold value of the vacuum pump are set respectively at least according to the speed of a vehicle and the magnitude of brake signals through the current vehicle speed information and the brake information, and the working time of the vacuum pump is reduced under the premise that the braking safety is guaranteed. According to the method and system, the switching-on threshold value and the switching-off threshold value of the vacuum pump can be set according to the current vehicle speed information and the brake information, so that the various working conditions of the vehicle in the traveling process are fully considered; under the premise that the brake safety is absolutely guaranteed, the working time of the vacuum pump can be reduced to the greatest extent, the probability of breakdowns due to long-time working of the vacuum pump is lowered, and the service life of the vacuum pump is effectively prolonged.

The invention discloses a wide-range power adjustable wireless electric energy transmission system and a control method thereof. The system comprises a DC power supply, a high-frequency inversion unit, a fundamental wave energy path, a harmonic wave energy path, a rectification and filtering unit, a primary side control unit and a secondary side control unit. The load needs different output power of the system, the power transmission characteristic of the fundamental wave energy path is different from that of the harmonic wave energy path, and the switching modes of a fundamental wave bidirectional switch S1 in the fundamental wave energy path and a harmonic wave bidirectional switch S2 in the harmonic wave energy channel are controlled; and thus, the system works in a mode that the fundamental wave energy path supplies power independently, a mode that the harmonic wave energy path supplies power independently, and a mode that the fundamental wave energy path and the harmonic wave energy path supply power in parallel, and the output power can be adjusted in a wide range. The system and control method thereof have the advantages that the fundamental wave energy path and the harmonic wave energy path can work in a coordinated manner, the utilization rate of power energy is improved, and the output power can be adjusted in the wide range on the premise that no complex control circuit is arranged additionally.

The invention discloses a wireless charging system, comprising first electrical equipment for externally charging and second electrical equipment needing to be charged, wherein the first electrical equipment comprises a power supply module and a wireless electric energy transmitting module which are connected with each other; the second electrical equipment comprises a wireless electric energy receiving module, an AC (alternative current)-to-DC (direct current) module and an electric energy storing module; the wireless electric energy receiving module is connected with the wireless electric energy transmitting module in a wireless manner; the AC-to-DC module is connected with the wireless electric energy receiving module; and the electric energy storing module is connected with the AC-to-DC module, and is used for storing direct-current current output from the AC-to-DC module. The wireless charging system disclosed by the invention can conveniently and reliably charge various electrical devices, such as a mobile computer, a mobile phone, a flat computer, a digital camera and the like, in a wireless manner, thus guaranteeing that the working time of the electric devices can be prolonged, and bringing convenience to work and daily life of a user.

This invention discloses a water purifier, which comprises a hull, a flocculation reaction barrel, a stirrer, a slant-pipe precipitator, a fine filter with ceramic filter core, a water storage barrel, and an effluent switch. The flocculation reaction barrel, slant-pipe precipitator and fine filter are connected in sequence. A multi-stage water treatment device is connected with the fine filter in the hull. The multi-stage water treatment device is connected with an outside stream distribution board communicated with the water storage barrel. An automatic sterilization device is set around the stream distribution board. This water purifier can be used to produce drinkable water from lake water, river water and surface water.

The invention discloses a wear-resisting cable bridge frame. The wear-resisting cable bridge frame is characterized by comprising a bridge frame main body and a bridge frame cover plate, wherein the bridge frame main body and the bridge frame cover plate are mutually spliced; the bridge frame main body comprises a bridge frame base plate and bridge frame side plates; reinforcing ribs are separately arranged on the bridge frame base plate and the bridge frame side plates; and a plurality of anti-bug lamps are arranged outside the bridge frame main body. According to the wear-resisting cable bridge frame disclosed by the invention, by arranging fireproof paint layers, the fire resistance of the cable bridge frame is greatly improved; when fires occur, long working time of the cable can be maintained, emergency need can be guaranteed, and the loss caused by the fires is reduced; and the requirements of electrical engineering on fireproofing grade are met, and the conduction of heat is effectively prevented.

The invention relates to an igniting and starting device of a solid rocket engine, and belongs to the technical field of solid rocket engines. Through the matching between selected material and the thickness of a buffering cushion arranged on an annular igniter and the distance matching between the top surface of the buffering cushion and a charging grain, deformation of an annular igniter shell under the impact of an electric initiating device is reduced, and the influence on the structure of the charging grain by the annular igniter shell in the process is effectively avoided. Meanwhile, the annular igniter shell can maintain integrity in the working process, and the working performance of the annular igniter is ensured.

The invention discloses a digital video with a function of preventing inadvertent opening. The digital video comprises a startup control unit which is respectively connected with a startup condition storage unit and a startup button module and is used for receiving a startup request signal emitted by the startup button module in real time; when the received startup request signal meets the startup conditions stored in the startup condition storage unit, the digital video is opened and operated in real time; and the startup conditions stored in the startup condition storage unit are read and set in real time according to a startup condition setting command input by a user. The invention discloses the digital video with the function of preventing inadvertent opening, which can preset the startup conditions of the digital video, and when the startup conditions are met, the digital video is opened and operated, so that the digital video can be effectively prevented from being accidentally opened, the safety in use and the working time of the digital video can be ensured, and the convenience can be brought to daily use of the digital video of the user.

The invention relates to an intelligent dynamic sealed liquid storage tank equipped with a metal ripple compensator and a use method of the intelligent dynamic sealed liquid storage tank. A liquid inlet solenoid valve is arranged at the liquid inlet of the liquid storage tank; a discharge valve is arranged at the discharge opening; a liquid outlet solenoid valve and an on-line moisture detection instrument are sequentially arranged at the liquid outlet of the liquid storage tank in the liquid outlet direction; the metal ripple compensator is mounted inside the liquid storage tank; wheels are mounted at the bottom of the metal ripple compensator; a guide rail matched with the wheels are mounted in the liquid storage tank; a breathing tube communicated with the metal ripple compensator is arranged at one end of the liquid storage tank; an electric contact liquid level meter is arranged at the other end of the liquid storage tank; the liquid inlet solenoid valve, the liquid outlet solenoid valve, the on-line moisture detection instrument and the electric contact liquid level meter are electrically connected with a control module. According to the invention, the cavity of the metal ripple compensator is communicated with the outer atmosphere through the breathing tube; the breathing action of the metal ripple compensator can perform the functions of compensating and balancing volume change in the liquid storage tank. caused by change in liquid level, so as to achieve dynamic sealing.

The invention discloses a wake-up and sleep circuit of an alternating current charging CP signal. The circuit is characterized by comprising a 5V constant power module, a CP signal conversion module,a D trigger module, a D latch module, a BMS main control chip, a selection switch module and a power supply module, and the 5V constant power module is connected with the CP signal conversion module,the D trigger module and the D latch module; the CP signal conversion module is sequentially connected with the D trigger module, the D latch module, the selection switch module and the power supply module; the BMS main control chip is connected with the D trigger module, the D latch module, the selection switch module and the power supply module. With logic combination control of high and low level changes of input and output signals of the D flip-flop and the D latch, the functions of automatically awakening the BMS and enabling the BMS to automatically sleep of the AC charging CP signal arerealized, and the circuit has important production practice significance.

The invention discloses an OTA over the air technology-based integrated dispatch terminal support system working method. The integrated dispatch terminal support system comprises an OTA download server, an OTA work order management sub-system, an OTA backstage management sub-system and a mobile terminal work order sub-system. The method comprises the following steps: a cell manager can perform corresponding work order searching, work order receipt and other operations on a mobile terminal after starting the OTA function; the integrated dispatch terminal support system has no any restriction on the mobile terminal, and the whole work order is shown in a menu mode, has simple operation and convenient use, coexists with the original work order system without influencing application of the original work order system, and provides a novel and effective work order searching mode.

The invention provides a battery intelligent management system, a battery intelligent management method and a flat panel detector. The battery intelligent management system comprises a battery module,an intelligent monitoring module, a CPU control module and an intelligent adjustment module. The battery module comprises a battery and a battery management chip. The intelligent monitoring module isconnected with the battery management chip. The CPU control module is connected with the intelligent monitoring module and is used for receiving the battery parameter information sent by the intelligent monitoring module, and generating a control signal according to the battery parameter information. The intelligent adjustment module is connected with the CPU control module, and is used for receiving the control information sent by the CPU control module and selecting a battery charging mode according to the control information to charge the battery. The battery management chip is respectively connected with the CPU control module and the intelligent adjustment module, and is used for feeding back the battery parameter information to the CPU control module and the intelligent adjustment module. The battery intelligent management system has the additional functions of battery safety monitoring, self-unlocking, battery intelligent management and the like. The battery charging state canbe detected and adjusted in real time and at the same time. The use safety of the battery is ensured.

The invention discloses a sterilizing box for agricultural technology research and development, and relates to the technical field of sterilizing boxes. The sterilizing box comprises a sterilizing boxbody, an exhaust pipe and an air inlet pipe; one end of the air inlet pipe is communicated with the left side of the surface of the sterilizing box body, the bottom of the exhaust pipe is communicated with one side of the top of the sterilizing box body, a movable bead is rotationally connected to one side of the surface of the air inlet pipe through a rotating slot box, a handle rod is fixedly connected to one side of the surface of the movable bead, and an arc frame is fixedly connected to the surface of the air inlet pipe. According to the sterilizing box for agricultural technology research and development, a connecting rod is driven to rotate through a movable ball in the arc frame, and the airflow size of a through hole can be controlled conveniently; by means of the movable ball inthe arc frame, the whole device can move more smoothly, one side of the surface of the movable bead is in sliding connection with the interior of the arc frame, and the smoothness of rotation of thehandle rod is improved; in addition, the whole device is simple in structure, low in price and easy to widely popularize.

The invention discloses an air conditioner control method and system of an intermittent power supply railway vehicle. An air conditioner is controlled to be in a pre-working mode, a normal working mode and an energy-saving working mode under different conditions; in the pre-working mode, by setting and reaching a new target temperature, energy storage is achieved to the maximum extent during charging so as to maintain a comfort degree of a vehicle during subsequent operation, meanwhile, energy consumption of the air conditioner when the vehicle is not charged is reduced, and a capacity of an energy storage power supply for continuously providing necessary power for traction, braking and other key systems is prolonged; and according to available electric energy and different set thresholds,the air conditioner is in different energy-saving working modes, the necessary power supply capacity of the vehicle is further guaranteed, and meanwhile the comfort degree of passengers is guaranteed.

The invention relates to a sealant with a decoration effect, which is characterized by being prepared through adding a solid color concentrate in a silicone adhesive and stirring uniformly, wherein the mass ratio of the silicone adhesive to the color concentrate is (80%:20%)-(98%:2%), and the color concentrate is selected from glitter pigment, fluorescent powder or metal particles. The sealant is colorful, has a special effect (such as a metal effect, a fluorescence effect and the like) and achieves the combined effect of sealing and decorating. The sealant is mainly used for sealing edges of fonts on surfaces of a signboard, a plaque and the like, and simultaneously has a decoration effect.

The invention provides an automatic material changing system, after one roll of material is used up, the main machine does not need to stop, and the other roll of material can continuously supply materials, so as to ensure the uninterrupted operation of the main machine, improve the overall molding efficiency, and ensure the stability of the main machine. Normal working hours, increased productivity. It includes two sets of feeding structures, the two sets of feeding structures correspond to one main engine, while one set of feeding mechanisms in the two sets of feeding structures feeds the main engine, the other set of feeding structures completes loading and unloading and enters the state of waiting for feeding , the two groups of feeding structures switch each other to complete the continuous feeding of the host.

The invention relates to an intelligent sensitive killing training system based on a pressure sensor. Graphene flexible film pressure sensors are arranged in a killing training protector and are correspondingly distributed at the positions of shoulders, left and right chests, abdomen, ribs and the like of the protector, and a sensor signal processing board collects the states of the pressure sensors at all parts and automatically judges whether external pressure exists or not, broadcasting and prompting are given through sound and an alarm lamp, then the data are transmitted to a networking server through a wireless module, the networking server processes the data transmitted by the killing training protectors, and the corresponding killing portions and results are displayed on a display screen; and according to the killing training system software, addresses are set for each group of killing training protectors and display screens, and the networking server performs unified configuration, so that a 2 + 1 training scheme can be realized, multiple groups of training protectors can be displayed online at the same time, the networking method is simple and effective, the cost and the system complexity are saved, and the training efficiency of the system is improved.

The invention provides a ship applying wind power, and relates to the technical field of ship engineering. The ship comprises a main ship body and two auxiliary ship bodies which are symmetrical in boundary dimension. The main ship body and the auxiliary ship body are each of a cavity type structure. A steering device is arranged in the main ship body, the two auxiliary ship bodies are symmetrically connected with the two sides of the center of the main ship body, the main ship body is provided with a sail, the sail is provided with a solar panel, the sail is connected with the steering device, a direction stabilizing plate is arranged at the bottom of the main ship body, and the ship has the advantages of being stable in navigation and environmentally friendly.