35results about How to "Avoid distance restrictions" patented technology

The method comprises: installing the GPS receiver at any location of the scene as a base station; the GPS receiver receives the GPS satellite signals and generates the differential correction information; the differential correction information is uploaded to the relay server via radio communication network; the relay server sends the differential correction information to the user's receiver of mobile station via radio communication network; the mobile station receives the GPS satellite carrier and pseudo range signal and navigation message, and receives the differential information from relay server via the radio communication network so as to realize the relative positioning between the base station and mobile station; making coordinate conversion and calculation for the positioning result to the user-desired coordinate.

The invention provides a steam-gas displacement and gravity oil drain composite exploiting method. According to the method, at least one horizontal well or a row of vertical wells close to the top of an oil pool are adopted as injection well sets, horizontal wells with the number same as that of wells in the injection well sets or with one more well are close to the bottom of the oil pool and are used as extraction well sets, the injection well sets and the extraction well sets are arranged in parallel in a non-direct-facing mode, and lower extraction wells are located in the middle portions of two upper injection wells. Steam huff and puff or steam and gas composite huff and puff are carried out on the injection wells and the extraction wells at the same time or in sequence, heat communication is built between the injection wells and the extraction wells to low the formation pressure, then high-temperature steam and non-condensation gas are injected into the injection wells at the same time or in an alternating mode, the injected steam seeps in the oil pool and heats the oil pool, the steam is condensed into hot water at the same time, and the gas expands a heating cavity, lowers heat loss and increases the pressure of the oil pool, so that crude oil flows to the extraction wells and is extracted under the composite effect of pressure displacement and gravity oil drain.

In an environmentally hardened network, a data and power distribution cable is employed in connection with reliable end connectors, high performance physical layer transceivers clocked at a lower rate than is specified and full duplex switched packet transmission techniques between switched nodes in order to extend operational distance between network elements. In a specific embodiment, the data and power distribution cable comprises a data distribution element, a power distribution element, an optional strain distribution element, an optional hollow conduit, and an extra shield and outdoor sheath. The cable may incorporate: 1) a Gel filled outdoor UTP (CAT-5) cable; 2) end connectors of type DB-9 [D-Sub] for connection of the UTP to network equipment; 3) power transmission cable of wire gauge sufficient to carry the power required by network equipment (switches, etc) for the specific segment of the network; and optionally 4) a hollow conduit that permits installation of optical fiber before or after installation of the cable.

The invention discloses a rapid correcting device for a cable core. The rapid correcting device comprises a first correcting device and a second correcting device; the first correcting device and thesecond correcting device respectively comprise a microcomputer processing control unit, an electric signal sampling unit, an audio intercommunication unit, a stabilized voltage supply unit, a strip light indicating unit, a buzzer sound production unit, a first testing line and a second testing line; and the electric signal sampling unit, the audio intercommunication unit, the stabilized voltage supply unit, the strip light indicating unit, the buzzer sound production unit, the first testing line and the second testing line are all electrically connected with the microcomputer processing control unit. The rapid correcting device has the advantages that: the cable core is more intuitively and accurately corrected and is easy to judge, and the correcting accuracy of the cable core is effectively improved; the correcting workload of the cable core is reduced, the manpower, the material and the time are saved; the invalid operation in the process of correcting operation of the cable core isreduced, and the working efficiency is improved.

The invention relates to the control technology for the household appliances, discloses a system and a method for realizing coordination control on an air conditioner based on a cellphone and a set-top box, and aims at solving the problems that the control on the air conditioner is limited by distance and remote control cannot be realized in the traditional technology. The system and the method for realizing coordination control on the air conditioner based on the cellphone and the set-top box are characterized in that the advantage of cellphone communication in distance is utilized and a household appliance is utilized rationally, web server software is installed in the set-top box and loaded during startup so that the set-top box can be used as a small server, an application for sending an instruction to the web server software of the set-top box can be installed in the cellphone, or the cellphone is capable of directly transmitting the instruction via a browser, in other words, the cellphone is capable of accessing to the set-top box via a mobile internet so as to transmit a control command for the air conditioner, and then the set-top box performs analytic processing on the control command and forwards the control command to the air conditioner for execution. The system and the method for realizing coordination control on the air conditioner based on the cellphone and the set-top box are applicable to remote control on the air conditioner.

The invention, which belongs to the measuring method technology field, relates to a real-time difference measuring apparatus for a regular moving boat-carrying base station and a working method thereof. According to the method, on the condition of a static state of a boat-carrying GNSS base station, a long-time positioning operation is carried out and an accurate initial position of the base station is obtained; a moving regularity of the boat-carrying GNSS base station is determined according to a position relation of between a target working area of the boat-carrying GNSS base station and atarget working area of an RTK flow station; and at the same time, an observation speed, a predetermined speed and driving time of the base station are processed, a track error of the base station is calculated and decided, and a driving state of the boat-carrying GNSS base station is also adjusted. In the case of determination of a speed and a starting position of a course of the boat-carrying GNSS base station, an accurate and real-time position of the boat-carrying GNSS base station can be obtained; and a carrier phase difference operation is carried out on range information, carrier information, and navigation message information of the boat-carrying GNSS base station so as to obtain a difference correction number; the difference correction number is sent to the RTK flow station by a data link unit, so that real-time difference measurement of the regular moving boat-carrying base station is completed.

The invention discloses an automatic welding turntable. The automatic welding turntable comprises a PLC control device, a connecting rod, a control center, a welding turntable, a host machine, a support block, a fixed base, rolling shafts, a turntable axis, screwing nuts, a conveying head, a conveying handle, a stretching rod, a conveying device, an upper fixed rod, an adjusting block, an adjusting knob, a lower fixed rod and a support long block; the PLC control device is connected with the control center through the connecting rod; the control center is connected with the host machine; the support long block is arranged on the fixed base; and the conveying head is connected with the stretching rod through the conveying handle. The automatic welding turntable realizes the full-automatic function through design of the PLC control device, greatly improves the working efficiency, is convenient for manual operation, is more accurate in the butt joint process through design of three rolling shafts and three screwing nuts, can work after total calibration of the three rolling shafts and the three screwing nuts, and solves the distance limit by the stretching rod arranged on the conveying device.

The invention relates to a host-controlled high-voltage electromagnetic dust removing system with a turning dust removing function. The system comprises a base, the base is in rotation connection with a solar cell panel, and the solar cell panel is connected with a driving motor. A glass protection layer is arranged on the solar cell panel, a plurality of parallel electrodes are arranged on the lower surface of the glass protection layer, the ends of the electrodes are connected with a high-voltage switch respectively, the high-voltage switch is electrically connected with a high-voltage switching module, and the high-voltage switching module supplies electricity through a high-voltage power supply module. The output end of the solar cell panel is connected with a power detection module, the power detection module transmits detected power data to a digital processing and controlling module, the digital processing and controlling module is connected with the high-voltage switching module through an intelligent control module, the output end of the intelligent control module is further connected with the driving motor and the digital processing and controlling module is connected with a host through a WIFI transmission module. The host-controlled high-voltage electromagnetic dust removing system has the advantages of being good in dust removing effect, high in working efficiency and low in energy consumption.

The invention discloses an optimal solar panel mounting angle measuring system which comprises a single chip microcomputer, a control circuit module, an omnibearing rotating cradle head, a solar panel, a Bluetooth wireless sending module, a computer and maximum average power algorithm software. The solar panel is mounted on the omnibearing rotating cradle head. The measuring system is characterized in that the single chip microcomputer controls the omnibearing rotating cradle head to rotate and output power collection of the solar panel through a control circuit, rotation of the cradle head is controlled by adopting a mode combining horizontal rotating with vertical rotating, collected data are sent to the computer through the Bluetooth wireless sending module, and the computer performs data processing and analyzing through the maximum average power software which is designed to acquire an optimal mounting azimuth angle and an optimal mounting inclination angle. The two optimal angles including the azimuth angle and the inclination angle in mounting of the solar panel are directly acquired by adopting a method of field measuring, acquired results are more accurate, and the optimal solar panel mounting angle measuring system is of great value to photovoltaic arrays and meteorological studying.

The invention discloses an automobile data recording information processing method and an automobile data recorder. The processing method comprises the following steps: determining a state of a user of the vehicle; and if the state of the user is the off-vehicle state, locking the automobile data recorder on the vehicle to prohibit access to the automobile data recording information stored in the automobile data recorder. The data security of the automobile data recorder is improved, information recorded by the automobile data recorder can be uploaded to the cloud server, and the problem that the storage capacity is limited is solved; furthermore, the video content of the cloud server can be checked at any intelligent terminal, so that on one hand, the distance limitation between the user and the vehicle when the user checks the video is solved; and on one hand, due to the upgrading of the display equipment, the quality of video display pictures can be greatly improved.

The invention relates to a GSM smart regulation and control system of a barn. The GSM smart regulation and control system comprises the barn, wherein a plurality of air pipes are arranged at the bottom of the barn, a plurality of branch pipes connected with the inside of the barn are arranged on the side walls of the air pipes respectively, and the air pipes are connected with fans; a plurality of monitoring bars which are evenly distributed are inserted in the barn, and a plurality of temperature sensors which are arranged up and down are distributed on the monitoring bars; the monitoring bars are grouped and then the temperature sensors on the monitoring bars are grouped to be connected with control units, the control units are connected with a partial host through GSM transmission units, and the partial host controls the fans through the control units. By means of the GSM transmission units, the partial host can remotely monitor temperature changes of grains in the barn, distance limit of cable transmission in the prior art is avoided, and the GSM smart regulation and control system has the advantages of being convenient to operate, and reliable in control.

The invention relates to a mainframe-control-based dedusting system for multiple cascaded solar panels. The mainframe-control-based dedusting system comprises the multiple solar panels. Glass protection layers are arranged on the solar panels respectively. The lower surfaces of the glass protection layers are respectively provided with a plurality of parallel electrodes, the ends of the electrodes are connected with high-voltage dedusting modules, and the adjacent high-voltage dedusting modules are cascaded. The high-voltage dedusting modules comprise high-voltage switches connected with the electrodes, high-voltage switching modules and high-voltage power supply modules. A power detection module is connected to the output ends of the solar panels, the power detection module transmits the detected power data to a digital processing and control module, and the digital processing and control module is connected with the high-voltage switching modules through an intelligent control module and is connected with a mainframe. The mainframe is provided with a real-time data processing module. The mainframe-control-based dedusting system has the advantages of being good in controllability, flexible to adjust, simple in dedusting operation and low in energy consumption.

The invention relates to a load monitoring device for a power distribution network. The device is used for acquiring the load information of a power distribution network and uploading the load information to a main control computer. The device comprises a monitoring end, a protection end and a clamping module. The clamping module comprises a first clamping handle, a second clamping handle and a fixing buckle. The first clamping handle is connected with the monitoring end. The second clamping handle is connected with the protection end. The fixing buckle is respectively connected with the monitoring end and the protection end, and respectively passes through a first through hole in the first clamping handle and a second through hole in the second clamping handle. The monitoring end comprises a second shell, a sampling assembly and an energy-taking power supply assembly, wherein the sampling assembly and the energy-taking power supply assembly are packaged in the second shell. The sampling assembly and the energy-taking power supply assembly are connected with each other, and are connected with the lead of the power distribution network. Compared with the prior art, the device has the advantages of convenient installation, high sampling precision, wide application range and the like.

The invention relates to a multi-solar-panel dedusting system based on wireless radio frequency regulation and control. The multi-solar-panel dedusting system comprises multiple solar panels. Glass protection layers are arranged on the solar panels respectively. The lower surfaces of the glass protection layers are respectively provided with a plurality of parallel electrodes, the ends of the electrodes are connected with high-voltage dedusting modules, and the adjacent high-voltage dedusting modules are cascaded. The high-voltage dedusting modules comprise high-voltage switches connected with the electrodes, high-voltage switching modules and high-voltage power supply modules. A power detection module is connected to the output ends of the solar panels, the power detection module transmits detected power data to a digital processing and control module, the digital processing and control module is connected with the high-voltage switching modules through an intelligent control module, and the digital processing and control module is connected with a mainframe through a radio frequency (RF) transmission module. The mainframe is provided with a real-time data processing module. The multi-solar-panel dedusting system has the advantages of being good in controllability, flexible to adjust, simple in dedusting operation and low in energy consumption.