171results about How to "No maintenance costs" patented technology

The present invention relates to a method in a first communications device for sharing an application with a second communication device. The method comprises the steps of: Sending a first short message service (SMS) to the second device. The first SMS comprises a link to a place from where the application can be downloaded into the second device. The first SMS comprises an identity for the second device to use for initiating an IP connection between the first device and the second device and the second device. The method comprises the further step of being connected by the second device for setting up an IP connection between the first device and the second device. The method comprises the further step of communicating with the second device in an IP connection sharing the application.

The invention provides a small current grounding system single phase earth fault traveling wave line selection and distance measurement apparatus which comprises a signal conversion plate, a high speed acquisition plate and a central management machine. The signal conversion plate converts bus zero sequence voltage and line current to 0 to 10 volts voltage signal after isolation. The high speed acquisition plate connecting with the signal conversion plate finishes the conversion from analog signal to digital signal, carries out high speed acquisition and caching, receives a synchronization time setting signal simultaneously, and marks data with absolute marker. A digital signal processor (DSP) of the high speed acquisition plate calculates whether the zero sequence voltage exceeds a starting set value or not, wherein, if so, line fault happens. The DSP automatically searches and calculates a tip size and direction of traveling wave, and outputs line selection result through a switch output plate connecting the high speed acquisition plate. Simultaneously wave recording is started to record fault data which is transmitted to the central management machine through a high speed bus. According to the wave recording data, the central management machine automatically searches initial wave tip of the fault line and time of fault point reflection wave tip, and calculates distance of the fault point. Finally, fault data and fault report are published through a WEB SERVER platform.

Provided is an in-car air quality monitoring and purification regulating system. A storage battery and three devices respectively powered by the storage battery are installed in a car. The three devices are a ventilating device, an adsorption and filtering device and a heating device. A temperature and humidity sensor, a formaldehyde sensor, a carbon monoxide sensor, a total volatile organic compound sensor and an inhalable particle sensor which are installed in the car are respectively connected with a system control module, and the system control module comprises a sensor signal processing circuit and a power supply on-off control circuit for the three devices. The system can monitor indexes such as in-car air quality and temperature and humidity in real time and start the three devices according to the index overproof conditions; the indexes can also be uploaded through the wireless network to a mobile by the system control module to be displayed in real time; the mobile phone can send instructions to the system control module according to users' requirements to start or shut down the three devices in real time, and purification adjustment of in-car air is achieved.

A spring clip modular assembly for a printed circuit board that has a solderless connection with a junction box. The assembly allows for easier and more efficient removal and replacement of the printed circuit board and electrical components while meeting the IEC 61215 second edition temperature standards. In addition, the spring clip is configured to reduce the amount of normal force applied to the printed circuit board when wire tabbing is inserted into the clips.

The invention relates to a cloud computing-based multimedia classroom system, which comprises a cloud computing management platform, thin clients and a switchboard, wherein each thin client is connected with the cloud computing management platform through the switchboard. A cloud computing system is a server side of the whole system structure, the cloud computing management platform generates an appointed number of virtual machines and creates virtual machine templates in different courses, the virtual machine template of each course is deployed to each virtual machine before class through a vertical machine cloning or snapshot manner, the thin clients are connected to the virtual machines through the switchboard by a teacher and students, and therefore the multimedia classroom system aiming at certain course is established in short time. Compared with the traditional multimedia classroom system, the cloud computing-based multimedia classroom system has the advantages of achieving the purposes of rapid deployment and unified management, improving the teaching effect of multimedia courses, reducing the purchasing and maintaining cost of the multimedia classroom and having favorable popularizing and using values.

Disclosed embodiments include thermoelectric-based thermal management systems and methods configured to heat and / or cool an electrical device. Thermal management systems can include at least one electrical conductor in electrical and thermal communication with a temperature-sensitive region of the electrical device and at least one thermoelectric device in thermal communication with the at least one electrical conductor. Electric power can be directed to the thermoelectric device by the same electrical conductor or an external power supply, causing the thermoelectric device to provide controlled heating and / or cooling to the electrical device via the at least one electrical conductor.

A river water quality monitoring method based on a high-resolution remote sensing satellite comprises the following steps: the high-resolution remote sensing satellite acquires a high-resolution remote sensing image a of a river to be monitored from a ground station, and transfers the digital topographic map of the region of the river to be monitored; a preprocessing module preprocesses the high-resolution remote sensing image a to obtain n high-resolution remote sensing images c of the image capable of displaying the complete river to be monitored at different wavebands; a controller performsregression analysis on the actual mass concentration of each reference position point and the reflectivity of each reference position on the high-resolution remote sensing images c to obtain a corresponding regression equation, and establishes a relationship function between the actual mass concentration of every reference position point and the reflectivity at every reference position on every high-resolution remote sensing image c based on the regression equation with a smallest dispersion degree; and the controller calculates the reflectivity of a monitoring point on each of the n high-resolution remote sensing images c, and calculates the water quality parameter mass concentration at the monitoring point according to the relationship function.

The invention relates to an on-line coal quality laser detection and analysis system, which comprises an automatic coal-sampling unit, a continuous coal sample-tableting unit and a coal laser detection and analysis unit that are connected in sequence through cables, a conveyer belt and a manipulator; the conveyer belt connects the automatic coal-sampling unit with a pulverized coal sample bin of the continuous coal sample-tableting unit; the continuous coal sample-tableting unit comprises a sample-tableting disc, and a hydraulic head and a filling port are arranged on the top of the sample-tableting disc; a pulverized coal sample feed station and a filling station are arranged on the sample-tableting disc, and a pulverized coal tablet ejection station is arranged under the sample-tableting disc; the coal laser detection and analysis unit comprises a three-dimensional point location numerical control platform, a travelling unit is connected to the three-dimensional point location numerical control platform, and an optical focusing element, a pulsed laser and a laser detection and analysis instrument are arranged on the top of the three-dimensional point location numerical control platform. The on-line coal quality laser detection and analysis system can implement automatic sampling, automatic sample tableting and automatic laser detection and analysis in the process of coal transportation.

The invention discloses a sensorless frequency conversion constant pressure water supply control method. Based on the pump characteristic model established based on the flow and head (pressure) curve, flow and power curve, the feedback of the pressure sensor is simulated through the pump characteristic model to achieve closed-loop frequency conversion without the pressure sensor. Constant pressure water supply control. After the model is established, the expected pressure value can be rewritten arbitrarily without re-measurement. The effect of sensor movement can be reproduced by setting the inverter parameters to complete the constant pressure control of any end load.

A high combustion efficiency device for liquid fuel comprises a hollow member made of electrically conductive material, liquid filling the hollow member and tourmaline particles dispersed in the liquid, wherein the high combustion efficiency device is formed to be attachable to at least part of a fuel tank of liquid fuel and a fuel passage extending from the fuel tank to a combustion device of the liquid fuel.

The invention discloses anti-cracking plastering gypsum mortar. The anti-cracking plastering gypsum mortar is prepared from the following raw materials: high-temperature calcined gypsum, ash calcium powder, composite portland cement, expanded perlite, fly ash, hydroxypropyl methyl cellulose ether, a retarder, a water reducing agent, starch ether, redispersible latex powder, polypropylene fibers and a waterproof agent. The invention provides the environment-friendly type lightweight bottom-layer plastering gypsum mortar which has good anti-cracking performance, has good heat insulation performance and can automatically adjusting temperature and humidity. By adopting the anti-cracking plastering gypsum mortar, the density of the mortar and the self weight of buildings can be effectively reduced; the anti-cracking plastering gypsum mortar has good sound insulation and noise reduction effects and has the advantages of uniformity in material preparation, convenience for construction, capability of being firmly stuck with a base layer, no hollowing, no falling, no cracks, fireproof and heat-resisting performance, heat insulation and sound insulation, greenness and environment protection,low cost and the like.

The invention relates to a set top box program payment method and a system. A payment descriptor is added to the program EPG information, the payment descriptor is acquired by a set top box, a two-dimensional payment code is generated, payment can be accomplished by a user through only reading the two-dimensional payment code by utilizing a mobile terminal, payment cooperation can be realized without a CA card or a CA system, so no huge maintenance cost is generated during expanding the payment function, the user has no need to re-purchase the set top box, payment can be realized with the set top box without the CA function, fee-based programs can be watched, the system is quite convenient for the user to watch, and user experience is great.

The invention relates to a bus information inquiry method, a collection method and a bus information system. Inquiry and collection of bus information can be realized in asynchronous exchange of bus information of bus participants. At first, a bus information exchange request is sent through a controlled common networking device and comprises a bus information and / or inquiry request to be exchanged. Then the bus information exchange request is received by an asynchronous bus information exchange center, the exchanged bus information is stored, and the required bus information is inquired in the relevant stored bus information which is exchanged by other bus participants according to the inquiry request in the exchange request and is returned to the common networking device. No special bus information source device is needed for bus information inquiry or the bus information system, the openness of bus information inquiry services can be maintained, costs of the bus information inquiry services can be minimized, and more diverse bus information can be provided than the prior art.

The invention discloses a saline discharge and alkali reduction concealed conduit device for saline-alkali soil. The saline discharge and alkali reduction concealed conduit device is characterized in that a dressing layer is arranged around the pipe walls of main pipes and branch pipes for forming a saline discharge and alkali reduction concealed conduit, the dressing layer consists of a water seeping layer formed by polyvinyl chloride (PVC) or poly ethylene (PE) granulation materials or ceramic particles with the granularity diameter being 0.5 to 0.8cm and the thickness being 10 to 15cm, a macadam and / or coarse sand layer with the thickness being 10 to 15cm is arranged above the dressing layer, the main pipes for forming the saline discharge and alkali reduction concealed conduit are distributed at intervals (L) being 30 to 40m and form the arrangement with the inclination being 3 to 5 degrees during pavement, the depth (H) from the top of an underground pipe network formed by the main pipes and the sub pipes to the ground is 80 to 100cm, a butt joint part is arranged in each position of the main pipe with the length being 30 to 50m, an inspection shaft is additionally arranged in each butt joint part or every two butt joint parts, and the length, the width and the depth of the inspection shaft are respectively 80 cm, 80cm and 120cm. The saline discharge and alkali reduction concealed conduit device has the advantages that the structure is simple, the formed structure of the underground pipe network is reasonable, the construction is convenient, the governing period is short, the cost is lower than that in the prior art, and the maintenance cost is avoided.

The invention discloses a full-automatic charging system for an electric vehicle. The full-automatic charging system comprises an electricity generating module, an electricity storing module, a charging module and a billing module. The electricity generating module comprises at least one solar photovoltaic battery. The electricity storing module comprises at least one energy storing storage battery. The charging module comprises a DC-AC inverter and a primary coil for being coupled with a secondary coil of the electric vehicle which is charged in a wireless mode. The billing module comprises a wireless identification device and a taximeter. The solar photovoltaic battery is electrically connected with the electricity storing module which is electrically connected with the charging module. The secondary coil of the electric vehicle is connected to the AC-DC inverter which is connected to a storage battery pack of the electric vehicle.

The invention discloses indoor positioning and navigation methods and devices, a computer readable medium and electronic equipment and relates to the technical field of computers. The indoor positioning method comprises the following steps of acquiring images at different positions and generating an image database, wherein each image comprises position information of the image in a room; acquiringa target image photographed by a user end at present; determining an image, similar to the target image, in the image database as a candidate image; and determining the position of the user end basedon the position information of the candidate image. The indoor positioning method provided by the invention can accurately determine the indoor position of a user and is relatively low in cost.

The invention discloses a detection wheel with directionality and a method for detecting running speed and running direction of a vehicle at the same time. Pulse detection is performed on the detection wheel through a rotating speed sensor, and with the help of analysis and calculation of a control system, rotating speed and rotating direction of the detection wheel can be acquired at the same time, so that actual running rotating speed and advancing direction of the vehicle can be acquired at the same time. Actual traveling direction of the vehicle can be detected only by changing detection wheel teeth of an existing detection wheel, so that the problem that the rotating speed sensor can only acquire rotating speed from the detection wheel and cannot determine direction in the prior art is solved, the safety problem caused by the fact that the actual traveling direction of the vehicle is opposite to needed moving direction is solved, and potential safety hazards in running of the vehicle are eliminated.

A bi-directional spiral material-discharging bin is composed of a material level instrument, a material-discharging bin body, a material-pushing bin, a motor transmission device, a screw and a blow-off valve. The upper portion of the material-discharging bin body is cylindrical, the bottom of the material-discharging bin body is conical, a cone base is provided with a material outlet, the material-pushing bin is cylindrical and is provided with an upper feed port and a lower discharging port, the material-pushing bin end of the bi-directional screw is spiral in the forward direction, the tail end of the material-pushing bin is spiral in the reverse direction, the material level instrument for measuring the height of an accumulated material in the material-discharging bin body is fixedly installed in the material-discharging bin body, an upper feeding port flange on the material-pushing bin is in sealed connection with a cone base material outlet flange of the material-discharging bin body in a bolted connection mode, and the blow-off valve is in sealed connection with a material-pushing bin lower discharging port flange in a bolted connection mode. The problem that due to the inborn inherent defects of a traditional material-discharging bin in structural design, the traditional material-discharging bin is complex in structure and large in volume is large, easily-damaged parts are many, the reliability is poor, the traditional material-discharging bin does not save energy and is not environmentally friendly, intermittent discharge is caused, and large discharging impact is caused is solved well.

The invention relates to a checkweigher for weighing a slide way. The checkweigher comprises a third support frame and a fourth support frame, wherein a weighing sensor is arranged on the third support frame, and a weighed slide way which is obliquely placed is arranged on the weighing sensor; an eliminating platform and an eliminating and grading mechanism are arranged on the fourth support frame; the eliminating platform is arranged below a discharge outlet of the weighed slide way; and the weighed slide way is in rigid connection with the stressed end of the weighing sensor through a force guide rod, an included angle between the design stressed direction of the weighing sensor and the material sliding direction of the weighed slide way is B, and B is more than 0 degree and less than 90 degrees or B is more than 90 degrees and less than 180 degrees. The back end of the weighed slide way and the front end of the eliminating platform are opposite with a spacing interval and are not in contact, and the weighed slide way is higher than the front end of the eliminating platform, so that the checkweigher solves the problems that a rotating motion part in a weighing and metering unit of an existing separating and checking scale seriously affects weighing precision, economy, practicality and efficiency, as well as the problems that an eliminating and grading device affects the weighing precision and the manufacturing, debugging and maintenance cost.

The invention discloses a two-in-one coaxial direct current brushless motor which is an integrated motor composed of two direct current brushless motors with approximately equal power in a coaxial manner, wherein the performance of the integrated motor is obviously improved; the two-in-one coaxial direct current brushless motor comprises a public rotating shaft, a first motor, and a second motor;both the first motor and the second motor are the direct current brushless motors and arranged on the public rotating shaft in series; and by virtue of process control, the synthesized torque of the two-in-one coaxial direct current brushless motor is always more than zero when the two-in-one coaxial direct current brushless is started, and the minimum synthesized torque is the maximum torque of one of the motors, therefore, the torque amplitude of the whole motor is effectively reduced, the running of the motor is free from dead angles, the starting performance is better, the vibration caused by electromagnetic switching of the motor is reduced and the noise is reduced; and meanwhile, after being coaxially overlapped without changing the external diameter of the motors, the two motors can work simultaneously to achieve the effect of outputting a greater torque.

The present invention relates to a method in a first communications device for sharing an application with a second communication device. The method comprises the steps of: Sending a first short message service (SMS) to the second device. The first SMS comprises a link to a place from where the application can be downloaded into the second device. The first SMS comprises an identity for the second device to use for initiating an IP connection between the first device and the second device and the second device. The method comprises the further step of being connected by the second device for setting up an IP connection between the first device and the second device. The method comprises the further step of communicating with the second device in an IP connection sharing the application.

The invention discloses a hydraulic system operation control method and a system device for isostatic pressing powder forming. Powder to be formed is poured in a powder cavity of an isostatic pressing machine. Isostatic pressing forming is carried out on powder in the powder cavity through an isostatic pressing forming device in the isostatic pressing machine. An isostatic pressing forming hydraulic operation system in the isostatic pressing machine is controlled in a servo control manner. The rotating speed and torsion of a motor are adjusted in a servo manner to accurately control the position and the pressing speed of a pressing head, the pressure of emulsified liquid in the powder cavity isostatic pressing forming device and time of boosting, pressurizing and pressure releasing. The position and the speed of the pressing head, the pressure of emulsified liquid in the powder cavity and time of boosting, pressurizing and pressure releasing are accurately controlled by adjusting the rotating speed and the torsion of the motor in the servo manner. A control system optimizes operation energy efficiency during operation to the maximum degree according to the operation requirements of various stages, and the method and the system device have the beneficial effects that overflow losses and standby no-load losses are avoided, the hydraulic temperature is low, water cooling is not needed, noise is low, and maintaining cost is low.

The invention discloses a wireless light-watching seeding system for a warehouse, which comprises a lighting tag, a wireless transmitter and a PDA. A seeding task control subsystem and a WMS order data interface subsystem are installed in the PDA. The WMS order data interface subsystem interfaces with various kinds of WMS to generate a single-wave picking list. The seeding task control subsystem establishes the binding relationship between the customer order and the lighting label with unique identification code. PDA scans the barcodes of the ordered goods one by one; The wireless transmitterreceives the instruction of the order goods barcode scanned by the PDA and transmits the instruction to the light label bound by each order. The light label receives the instruction of the barcode ofthe goods in the order, and the light label of the warehouse location of the goods will be on, reminding the staff to put the goods on the warehouse location corresponding to the light, and the task will not be finished until after all the goods are assigned to the warehouse location, and then the next wave of orders will be circularly sown. The invention has the advantages of low cost, high flexibility, high safety and low maintenance cost.

The invention discloses a condensation-type defogging device, which comprises a defogging machine, a condensation recycle tank and a cooling water circulation system, wherein the cooling water circulation system is a water circulation self-closing system consisting of a cold cutting water tank, a self-suction pump and a heat exchange spiral pipe; the cold cutting water tank, the self-suction pump and the heat exchange spiral pipe are successively connected end to end by pipelines and valves; the condensation recycle tank is a sealed tank body; the bottom of the condensation recycle tank is provided with an exhaust inlet; the middle lower part of the condensation recycle tank is transversely provided with a heat exchange spiral pipe; the middle upper part of the condensation recycle tank is provided with a condensation plate; the upper side of the condensation plate is provided with an air equalization plate; the upper side of the air equalization plate is provided with a filter layer; and the top of the condensation recycle tank is provided with an opening and is provided with the defogging machine. The equipment is used for effectively removing fog generated in the industrial spraying and cleaning process so as to achieve purposes of effective removal, no residues and no pollution, a more reliable efficiency guarantee is provided for the equipment and a product, the automation degree of the equipment is further improved, and the environment is prevented from being polluted.

The invention discloses a method for processing the surface texture of wood floor, which processes the surface texture of the wood floor by using a circular saw blade. The device of the invention comprises a worktable (3); a group of disk saw bits (4) with adjustable height are arranged below the worktable (3); and the worktable (3) is provided with an angle-adjustable baffle plate (6). The method adopts the common disk saw bits to process the surface texture of the wood floor, and can form different nostalgic textures by changing the saw tooth shape, the number and space of the disk saw bits, the angle of the disk bits and the wood floor, the moving speed of the wood floor and the height of the disk saw bits on the wood floor. The method is simple and practicable, does not need special equipment, and can finish the texture processing of the wood floor by only simply improving the common disk saw bits. The method has the advantages of simple structure, little investment, convenient daily maintenance and no need of inputting the maintenance cost.

The invention provides a production technology of a polypropylene building template, which is the technology for producing the building template by adopting waste plastics as the raw materials. The production technology comprises the steps of pretreating the raw materials, mixing the materials, and carrying out extrusion molding. The raw materials are treated based on a certain ratio and prepared into the product building template under a certain condition. The product building template has the characteristics that the construction quality is high, the building template can be recycled for a plurality of times, the cost is reduced, the benefit is increased, the energy conservation and environment protection are realized, and the residues can be recycled; and the product building template has a large market demand and wide prospect, and is an excellent substitute for steel templates, bamboo plywood and wood plywood.

The invention provides a passive remote emergency button and an application method thereof. The emergency button is used for achieving a remote help-seeking function through pressing a key in needs or emergency. The emergency button comprises a magneto-electric induction device, an eMTC communication module group, a central processing unit, a central processor unit, a power management unit, a rectification processing unit, a button device body, and an energy storage capacitor. The emergency button does not need an external power supply or a battery for power supply through combining the eMTC communication technology with the passive magneto-electric induction device. There is no need of an additional GPS or other positioning chip, and the emergency button achieves the locating of a device. The emergency button is very wide in signal coverage, and the communication distance can reach several kilometers. The emergency button supports the positioning of a moving object, and can achieve the connection with a remote platform. The emergency button is low in cost, is small and exquisite in appearance, can be installed and fixed freely, and is good in market prospect.

The present invention relates to a method in a first communications device for sharing an application with a second communication device. The method comprises the steps of: Sending a first short message service (SMS) to the second device. The first SMS comprises a link to a place from where the application can be downloaded into the second device. The first SMS comprises an identity for the second device to use for initiating an IP connection between the first device and the second device and the second device. The method comprises the further step of being connected by the second device for setting up an IP connection between the first device and the second device. The method comprises the further step of communicating with the second device in an IP connection sharing the application.