560 results about "Self supply" patented technology

This disclosure presents methods, systems, computer-readable media, and apparatuses for determining a limited but sufficient group of APs suitable to be used for efficient and accurate wireless device location fixing. Certain embodiments relate to methods for eliminating unsuitable APs even when the geographic position of APs in the area of interest is not known a priori.

An asynchronous, distributed, and calibrated apparatus provides a composite display from a plurality of plug-and-play projectors. The apparatus comprises a plurality of self-sufficient modules. Each module comprises at least one plug-and-play projector of the plurality of plug-and-play projectors. A camera is coupled to the projector. A software or firmware controlled, computation and communication circuit is coupled to the projector and executes a single-program-multiple-data (SPMD) calibration algorithm that simultaneously runs on each self-sufficient module to generate a scalable and reconfigurable composite display without any need for user input or a central server.

A mobile retail store structure transportable to a plurality of different locations includes a trailer construction configured both exteriorly and interiorly for housing a plurality of storage bins wherein products and/or parts can be stored. Each trailer is a self-sufficient module which includes doors at one end of the trailer unit for entry and exit thereto, portable stairs for providing access to the entry doors, opposed side doors and associated walkways for allowing coupling to additional similarly constructed trailers, extendable canopies for providing a secure passageway between the respective coupled trailers, and a generator/HVAC system for providing heating, cooling and electrical power to each trailer unit. In one embodiment, a terminal is provided to allow a user to either browse electronically various items for selection and/or sale, or access a self-service check-out station to complete a transaction. A plurality of terminals can be coupled to communicate with a master server terminal over a wired/wireless network.

The invention presents a self-supplied magnetic current damper, which includes a magnetic current damper, a vibration energy collector, and an energy storage management module. The energy collector is a multi-vane disc shaped electro-magnetism type mechanical energy collector installed on the piston bottom of the magnetic current damper, which is composed of multiple impellers and disc shaped magnetoelectric transducers, wherein, the disc shaped magnetoelectric transducers are mounted on the piston, the multiple impellers are mounted on the rotor of the disc shaped magnetoelectric transducers, and the energy produeced by the disc shaped magnetoelectric transducers is lead out by the coil on the stator. The output lines of the disc shaped magnetoelectric transducers are connected to the energy storage management module, and the output of the energy storage management module is connected to the magnetizing coil of the magnetic current damper. During work, the magnetic current liquid impacts the vanes, the impeller converts the fluid washing into the rotation of the disc shaped stator inlaid on the rare-earth permanent magnet, the magnetic flux of the coil on the disc shaped stator is changed, in order to achieve effective collection of mechanical energy, and greatly reduce the transducer volume.

The invention discloses an intelligent power grid distributed self-supporting photovoltaic power supply system. The system comprises a central controller, a DC/DC (direct current to direct current) direct chopper circuit, a power dispensable circuit, a DC/AC (direct current to alternating current) bidirectional inverter circuit, an island detection circuit and an energy accumulator, wherein the central controller is used for collecting data in real time, and controlling the DC/DC direct current chopper circuit, the power dispensable circuit, the DC/AC bidirectional inverter circuit, the island detection circuit and the energy accumulator through analytic calculation, so that the seamless switching between synchronization network and off network can be realized, the synchronization mode operation when a public utility grid is normal can be guaranteed, the system can quickly perform the automatic off-line and off-network mode operation when power is down, the remote dispatching acceptability to a public power grid, the power interaction between the system and the power grid, the off-peak power consumption of load and economical operation of the system can be realized, the power supply quality can be improved, the safety and the reliability of loaded power consumption can be guaranteed, the spontaneous self-supply rate of the system can be improved, and the impact of intermittency and fluctuation of photovoltaic power output to the power grid can be reduced.

The invention relates to a method of taking over and controlling attitude after a space tethered robot captures a flexible target satellite. Taking regard of nondeterminacy of inertia, the coupling effect, external interference and other factors, the method of taking over and controlling attitude after space tethered robot captures flexible target satellite establishes a complex attitude and orbit coupling kinetic equation, designs inner and outer ring terminal sliding mode controllers, and gives consideration on the saturation characteristics of a thruster and a tether so as to stably control the attitude and angular velocity of the complex. The method of taking over and controlling attitude after a space tethered robot captures a flexible target satellite includes the following steps: establishing an attitude kinetic equation of a complex after a space tethered robot captures a target satellite; designing inner and outer ring terminal sliding mode controllers and the corresponding adaptive law; taking the inner ring control law and the outer ring control law as the input of a control system to take over and control the attitude after the flexible target satellite is captured; and proving Lyapunov stability. The method of taking over and controlling attitude after a space tethered robot captures a flexible target satellite can solve the problem that the flexible complex parameters are not determined and the self-supplied thruster of the space tethered robot is saturated.

An artificial and natural lighting system placed in the roof of a building that is substantially self-contained and powered. A photovoltaic cell provides electricity stored in a battery to power light emitting diodes. A highly reflective interior coating applied to the light shaft maximizes lighting intensity. A sensor detects illumination intensity and temperature within the light shaft to control the balance of natural and artificial light provided to maintain predetermined illumination intensity. The light shaft is insulated to reduce heat transfer and a thermal collector removes heat from the building. In one embodiment, a Fresnel lens is utilized to focus natural light onto the photovoltaic cell. In another embodiment, conventional fluorescent lighting powered by external line voltage is combined with light emitting diodes powered primarily by a rechargeable battery. The present invention, being substantially self-contained, is easily retrofitted to existing buildings with a minimum of connections and provides substantial energy efficiencies in illuminating the building.

A lighting system including a power control device for controlling illuminance of a lighting fixture by outputting current to drive the lighting fixture and controlling the current, a plurality of lighting fixtures each driven to be lit by the power control device, and a switch device incorporating an energy self-supplying unit converting an operating force of a switch button into electric energy. The power control device includes a first circuit section having a receiver for receiving a wireless signal having a predetermined frequency and a control signal generating circuit for generating a control signal according to the number of times of reception of the wireless signal and operated by a first power system and a second circuit section operated by a second power system and outputting current according to the control signal from the first circuit section, and the second power system is not operated when not outputting current.

A self-contained anthropomorphic robot for erotic entertainment, stunt work, and commercial display. The robot has a contiguous, anatomically correct, lifecast outer skin. The outer skin is elastic, pigmented, and translucent, and is colored with superficial layers of translucent coloring agent to achieve a highly human appearance. In the preferred embodiment, the elastic skin is translucent silicone. This skin overlies soft padding and an articulated endoskeleton. The robot runs on its own internal power supply, and does not require an external power source. The robot can understand spoken commands and phrases, and can choose and speak its replies, according to internal logic. It generates its own body warmth, and is capable of operation under water.

A dynamic braking circuit that can be operated with stability over both high and low speed regimes. This circuit has the advantage of using fewer components than previous circuits. In addition, when in braking mode, the armature and field currents tend to oppose each other across the main braking switch hence reducing electromechanical stresses when in high current regime. According to a second embodiment, a dynamic braking circuit implements a “soft” extended braking function with the capability of providing a smoother braking action at high braking effort at little extra cost resulting from the replacement of a contactor by a reverser. The main advantages of this preferred embodiment are that the current generated by the armatures during braking can be controlled independently from the excitation of the field windings at low speeds and that it enables simultaneous self supply, regeneration and dynamic braking.

The invention discloses a wall painting device with a liquid self-supply function. The wall painting device comprises a base plate, a stirring barrel, a pumping mechanism, a lifting cavity, polishingmechanisms, a smearing roller and a forward and reverse rotation motor; the stirring barrel is arranged at the upper end of the base plate; the pumping mechanism is arranged on the left side of the stirring barrel and comprises driven gears, a driving gear, a threaded sleeve, a second threaded rod, a piston, a cylinder, a rotating rod, a first liquid guide tube and a second liquid guide tube; thelifting cavity is formed in the left side of the pumping mechanism; rectangular grooves are formed in the left and right ends of the lifting cavity; a supporting plate is fixedly installed at the leftend of a moving block and connected with a protecting cover through a supporting rod, and the smearing roller is rotationally connected in the protecting cover; the polishing mechanisms are symmetrically arranged at the upper and lower ends of the protecting cover. The wall painting device is simple in structure, convenient to operate, capable of achieving paint self-supply and continuous supply,high in automation degree, high in painting efficiency and good in painting effect and greatly reduces manual labor.

A self-watering and self-lighting hydroponic system is disclosed for optimal plant growth. The apparatus comprises of a reservoir that contains nutrient-rich aqueous solution, a structure that incorporates plant pods, a light system to optimally grow plants at desired wavelengths, and a power source. The growing medium and container may be self-standing or attached to another container in a modular fashion. A tube for transporting nutrient rich solution is connected to a reservoir in the base of the apparatus. The specified flow rate of the solution may be dictated by manual or app driven technology. The tube is connected to an elevated emitter and positioned so the solution disperses evenly throughout the system.

An energy control method for an energy management system provides an operation plan for the energy management system for monitoring and controlling an energy charging and discharging state according to an energy storage type, since energy self-sufficiency at home is enabled through association between an energy storage system (ESS) such as an electric vehicle charging station and home as a renewable energy power supply in the form of a distributed energy resource (DER) is constructed at home. The energy control method adds functions of a home energy management system (HEMS) managing and controlling a renewable energy power supply, the ESS, and the electric vehicle charging station that may be constructed at home afterwards, thereby providing consumers with a control order of various facilities not considered before. Therefore, information on settlements caused by energy supply and demand procedures and energy trading details and management evaluation functions may be provided.

A smart logistic system for interrogating radio frequency identification (RFID) tags, including: a) a portable support and protective structure adapted for mounting on a tine of the forklift, the support and protective structure including a mounting section, includes a top surface and a bottom surface, and a component section each extending along at least a portion of the support and protective structure, the mounting section configured to secure the support and protective structure to the tine and the component section including a compartment; b) a RFID reader securely accommodated inside the compartment; c) a RFID antenna; and d) a power source securely accommodated in the component section. The support and protective structure being portable and the RFID reader being self sufficient, the smart logistic system can be deployed to another tine of a forklift within seconds.

The invention relates to an automatic homeward voyaging method and an automatic homeward voyaging system of an unmanned boat. The automatic homeward voyaging method includes the following steps: 1, recording starting point GNSS (global navigation satellite system) information and standby homeward voyaging point GNSS information during starting; 2, judging the homeward voyaging state according to preset conditions; 3, monitoring new homeward voyaging point GNSS information; 4, judging the homeward voyaging phase according to current local GNSS information and the homeward voyaging point GNSS information; 5, re-planning a homeward voyaging path when the homeward voyaging phase or the homeward voyaging point GNSS information changes; 6, looking for a recovery device in an area of a homeward voyaging point according to a beacon; 7, selecting a navigation control mode according to the homeward voyaging phase of the unmanned boat; 8, correcting the voyage direction according to relative position postures of the unmanned boat and the recovery device until competition of homeward voyaging. The automatic homeward voyaging method and the automatic homeward voyaging system are applicable to two basic situations of returning to a mother ship recovery device and returning to a mother harbor recovery device, an automatic homeward voyaging technology based on a far-to-near rule and with continuously-improved environment sensory ability is achieved through three homeward voyaging phases, three path generation rules and three navigation control modes, and the technology can provide support for follow-up functions (such as self-supply and self-maintenance).

The invention discloses a method for drying low-rank coal, which comprises the following steps: (1) the low-rank coal is crushed, and the arrange of a grain diameter of the crushed low-rank coal is between 3 and 50mm; (2) the crushed low-rank coal is sent into a dryer and contacts hot flue gas which comes from a hot flue gas generation device; (3) the low-rank coal which comes out of the dryer is collected, and the hot flue gas discharged by the dryer as well as coal powder and water vapor which are carried by the hot flue gas are aerated into a coal powder treatment and acquisition system at the same time; (4) at least partial coal powder collected by the coal powder treatment and acquisition system is sent to the hot flue gas generation device to serve as a combustion material; (5) the hot flue gas which comes out of the coal powder treatment and acquisition system is divided into two parts, wherein the first part of flue gas circularly returns to the hot flue gas generation device, and the second part of the flue gas is discharged after heating combustion air through an air pre-heater; and (6) the heated combustion air is conveyed to the hot flue gas generation device to take part in the combustion. The invention also provides a low-rank coal drying system with self-supplied fuel, which has the advantages of high energy utilization rate and low production cost.

The invention relates to a self-perception, self-power supply and adaptive control magnetorheological vibration damping system, which consists of a dual-extension lever magnetorheological absorber, a vibration energy acquisition device, an energy storage and management module, a status self-perception module and an adaptive control system, wherein the vibration energy acquisition device, the energy storage and management module, the status self-perception module, the adaptive control system and the magnetorheological absorber are integrated; mechanical energy of the system is converted into electric energy by the energy acquisition device; the electric energy is stored and managed by the energy storage and management module so as to supply power to a sensor, a controller and the magnetorheological absorber; the perception of the operating state of the magnetorheological dapmper is realized by the status self-perception module so as to provide decision basis for an adaptive controller;and the adaptive controller regulates the operating damping force of a magnetorheological damper in an adaptive mode according to the operating state of the magnetorheological absorber, so that the adaptive control of the self-perception status and self-supply energy of the magnetorheological absorber is realized, and the application field of the magnetorheological absorber is expanded greatly.

A dual display client apparatus includes a pair of display housings. When physically coupled together in a first mode of operation, the display housings may be arranged as a single portable electronic device such as a clamshell laptop. In this mode, the system is configured to share computing power and other resources among the two housings, providing a more powerful and robust device than when the housings are separated. Processor power and storage capacity may be aggregated in the unitary apparatus. Battery charging and power sharing may be enabled between the devices' power supplies. When decoupled, the separate display housings are configured to each operate as a self-sufficient, standalone computing device. In this mode of operation, applications and other software may be instantiated as shared instance or separate instances, giving the user of each device ultimate flexibility in device operation and content consumption.

The invention discloses a comprehensive energy microgrid planning method considering comprehensive energy supply reliability. The method comprises the following steps: establishing an equipment energyefficiency and economy time sequence model in a comprehensive energy microgrid, wherein the time sequence model comprises a fuel gas combined cooling heating and power system model, an energy conversion device model, an electricity storage equipment model and a heat storage equipment model; Establishing a comprehensive energy microgrid optimization planning model, including taking the total costof the comprehensive energy microgrid in the whole life cycle as an objective function, and performing maximum load constraint, power balance constraint, self-sufficiency probability constraint, energy supply equipment operation constraint and energy storage equipment operation constraint; The comprehensive energy microgrid optimization planning comprises equipment configuration and operation scheduling. According to the invention, the energy supply reliability of the comprehensive energy microgrid is analyzed; and the energy supply reliability and economic index of the integrated energy microgrid are taken as objective functions, so that the capacity of equipment in the integrated energy microgrid is optimally configured in a targeted manner on the premise of meeting the energy consumption requirement of a user in the integrated energy microgrid, and the planning economy is improved.

The invention discloses a food safety risk supervision mobile laboratory. The mobile laboratory provided by the invention comprises an engineering truck, wherein at least one electric leg which can be contracted to the ground is arranged at the bottom of a coach of the engineering vehicle; and a food detection related instrument is arranged in the coach of the engineering truck. The laboratory combines the detection analysis function of the traditional biological and a chemical laboratory with mobility and convenience of large engineering trucks, can supervise food safety in real time, has the advantages of strong maneuverability, high-end equipment, complete detection items, greenness and environmental protection, self-sufficiency of water, electricity and gas and the like, and can deal with field test tasks of various national-grade large activities and food safety emergency incidents.

The invention provides a method for recycling a surplus sludge hydrothermal carbonization solution, which belongs to the technical field of environment engineering sludge treatment. The hydrothermal carbonization solution is appropriately circularly utilized in the hydrothermal carbonization process of the surplus sludge, so that while the yield of hydrothermal carbon is increased, the high-concentration hydrothermal carbonization solution which is easy to recycle is generated, nitrogen and phosphorus in the high-concentration hydrothermal carbonization solution are recycled through a struvitemethod, and a liquid phase part is used as a denitrification supplementary carbon source in the sewage biological denitrification. The method has the beneficial effects that the zero emission of thesurplus sludge in the sewage treatment can be realized, the technical bottleneck that the low-carbon-nitrogen-ratio waste water biological denitrification efficiency is low can be effectively overcome; and moreover, the hydrothermal carbon can be used as fuel for heating a hydrothermal carbonization reactor, so that the energy self-supply can be realized, and the application prospect in the aspectof recycling the surplus sludge in an urban sewage treatment factory is wide.

The invention discloses a water purifying device, which comprises the following parts: reserving tank from inlet, secondary pressurized pump, secondary water-supplying pressure tank, secondary water-supplying tank, purifier and ore purifying tank behind purifier, wherein the filter layer, activated carbon layer, medical stone layer, coral sand and pearl sand, quartz sand layer, activated carbon layer with loop magnesium, mineral ball layer and ceramic sand layer are overlapped on the porous suspending board of ore purifying tank bottom from upwards to downwards; the ultraviolet disinfecting lamp protected by sealed glass lid is set on three-elevation bottom of water reserving tank and secondary water-supplying tank; the lid and inlet pipe with water level self-valve are set on the top of secondary water-supplying tank and ore purifying tank with outlet pipe and cleaning drainage pipe on the bottom. The invention can be urban water-supplying equipment of secondary pressurization, which is fit for centralized urban-rural or self-supplying terminals to purify and sterilize.