266results about How to "Reduce laying" patented technology

The invention provides a distributed distribution network terminal device for monitoring distribution switch cabinets in real time. The distributed distribution network terminal device comprises a main control unit and at least one intelligent monitoring unit which is electrically connected with the main control unit, wherein the intelligent monitoring units are arranged in the corresponding distribution switch cabinets to be monitored; and the intelligent monitoring units and the main control unit communicate with each other through a controller area network (CAN) bus. By adoption of the technical scheme, the independent intelligent monitoring units are arranged in cabinet bodies of the distribution switch cabinets, and all intelligent monitoring units and one main control unit are connected and communicate with each other through the CAN bus, so the technical problems of limited access capacity, many access cables and large size caused by assembling all functional modules of a distribution terminal in a cabinet are effectively solved.

The invention relates to an integrated submersible photoelectromagnetism river and lake water purifying method and a device thereof. In the method, a sewage inhalation device, a gas-water mixer and a purifier which are successively connected are arranged at the bottom of a stream, a lake, an artificial lake, a fountain or a scenery fish pond. A water outlet of the purifier is arranged at a position near the water surface of the river and lake water; sewage water to be purified is inhaled by the sewage water inhalation device and is sprawled into the gas-water mixer in a jet flow way and at high speed after being magnetized strongly by a magnetizer; the sewage water in a gas mixing chamber of the gas-water mixer is forced to be mixed with ozone in the gas mixing chamber to compose a gas-liquid mixed flow; the mixed fluid is injected into the purifier; the high speed jet is utilized to involve and inhale sewage water near a water inlet of the purifier into the purifier; a photoelectric combined catalytic oxidation treatment is carried out on the sewage water mixed with the ozone in the purifier; then, outlet water forms a level circulating water flow on the periphery of the water outlet of the purifier to realize gradient exchange purification of the whole river and lake water. The integrated submersible photoelectromagnetism river and lake water purifying method and the device thereof have the advantages of less land occupation, little investment and operating cost and good purifying effect.

The invention discloses a transformer intelligent antitheft system, solving the technical problem of incomplete security of a present transformer antitheft system, and is characterized by comprising a radar range finding sensor used for detecting the distance between a human body and a transformer, and transmitting a signal to a controller; a human body motion induction sensor used for inducing the human body motion status nearby the transformer, and transmitting a signal to the controller; a three dimensional displacement sensor used for detecting transformer three dimensional space displacement information and transmitting a signal to the controller; a vibration sensor used for detecting whether the massive attack suffered by the transformer and an antitheft apparatus housing exceeds a threshold value, and transmitting a signal to the controller; and a GSM communication module used for receiving data information, meanwhile positioning and performing remote voice monitoring on a transformer antitheft apparatus, sending received data and positioning information to a server terminal or an operator handset, and the server terminal responding to the data information and giving an alarm, thereby realizing multi-parameter artificial intelligent identification and whole course monitoring antitheft alarm.

The invention discloses a power distribution network fault positioning fault tolerance method based on information completion and correction. The power distribution network fault positioning fault tolerance method based on the information completion and correction comprises the following steps: 1) classifying feed breakers in the corresponding topological graph of a power distribution network area, and determining whether current flows through the feed breakers according to switch state information uploaded by terminal equipment; 2) judging whether the switch state information uploaded by the terminal equipment is lost or not; 3) according to a node switch overcurrent decision rule, complementing the switch state information uploaded by the terminal equipment, which has lost information; and 4) carrying out distortion analysis to the switch uploading state information which has no lost information or has completed information, ending if no distortion is in the presence, and otherwise, starting step 5); 5) finding out and correcting distortion information. The power distribution network fault positioning fault tolerance method based on the information completion and correction has the characteristics of high fault positioning accuracy and easiness in implementation.

The invention relates to a household plant cultivation intelligent monitoring and management system based on a cloud server. The cloud technology is applied to bonsai cultivation intelligent monitoring and management in a family or an office or a office block or a restaurant or a hotel or other areas; real-time observation of plant growth conditions is achieved by the adoption of a mobile control terminal and an indoor control terminal, and wireless transmission is adopted in a provided control strategy to control a nutrient element adjustment device remotely to supplement nutrient elements needed by plant growth in time; the cost of a system data processing server is greatly lowered for a data processing center by the adoption of the cloud sever, running is efficient and accurate, and full wireless transmission is achieved to reduce cable laying greatly. Compared with an existing household plant cultivation monitoring system, the household plant cultivation intelligent monitoring and management system based on the cloud server has the advantages of remote monitoring, high efficiency, intelligence, environmental friendliness, low cost and the like. Cloud storage of collected data is beneficial for future query of plant cultivation technology data and provides data support for future agricultural big data.

The invention relates to a mixed fiber concrete pipe, wherein mixed fiber concrete for forming the pipe comprises the following components according to the parts by weight: 322-540 parts of cement, 140-220 parts of water, 475-828 parts of sand, 864-1,306 parts of cobbles, 0.2-20 parts of polymer fibers and 20-140 parts of steel fibers. The mixed fiber concrete pipe has low raw material cost, light weight, high tensile strength, flexural strength, shearing strength and torsional strength, better durability and fatigue resistance, stronger capacities of shock resistance, abrasion resistance and cavitation resistance and better crack resistance, conforms to an energy saving and emission reduction policy and is a renewal product of the existing concrete pipes.

The invention discloses a real-time seepage monitoring system for a large-scale water conservancy project; the real-time seepage monitoring system is composed of a monitoring node, a gateway node and an electronic computer in a monitoring centre; the monitoring node is a ZigBee wireless sensor network node with an underwater sound sensor; by means of a GPRS network and an Internet network, the monitoring node is used for transmitting seepage water-flow information of the water conservancy project to the electronic computer in the monitoring centre in real time through the gateway node. The real-time seepage monitoring system disclosed by the invention is particularly applied to monitoring the seepage of the large-scale water conservancy project in real time by adopting a wireless sensor network; a large number of conductor wires can be prevented from being laid; the cost is reduced; the construction difficulty is reduced; because of being simple in structure, small in size and low in cost, the wireless sensor network monitoring node is particularly applied to being arranged in the large-scale water conservancy project and is used for monitoring the seepage at multiple places; the underwater sound sensor disclosed by the invention is put in seepage and cannot be influenced by weather; and the real-time monitoring is carried out for 24h.

The invention provides an integral load-bearing heat-insulating wall plate and a production and construction technology thereof. The invention provides the integral load-bearing heat-insulating wall plate, which can bear load, keep warm, allow doors and windows to be constructed outside and allow water, electric and gas pipes to be constructed well, and does not need walling or splicing. During building construction, the integral load-bearing heat-insulating wall plate ensures that a house is formed into a whole through a sitting mortar construction method, a direct welding method, a frame connection method and a hanging pouring method. The integral load-bearing heat-insulating wall plate ensures that a building not only is heat-proof, thermal, energy-saving and low carbon but also is firm and shock-proof, and not only is high in construction speed but also saves time and labor and saves prime cost and construction cost; besides, the raw material is saved, and pollution caused by waste gas and refuse is reduced. The integral load-bearing heat-insulating wall plate and the production and construction technology thereof both provided by the invention cater to the demand of the time, the society and the people, can create a new world of green construction, and can generate huge economic benefits and social benefits in urbanization construction and new rural construction.

The invention relates to a mine safety monitoring system, belongs to the technical field of communication equipment for coal and non-coal mine underground monitoring, and aims to provide a system which can overcome the defects of the mine safety monitoring system, is convenient to mount and maintain while the node capacity of the system is increased, and provides convenience for patrol. The invention adopts the technical scheme that ground equipment comprises a monitoring host, printing equipment, a universal switch, a UPS (Uninterruptible Power Supply) and a mine ground switch; the monitoring host, a monitoring host backup machine, the printing equipment, the UPS and the mine ground switch form a local area network through the universal switch; the underground equipment comprises a plurality of underground mine switches, mine substations, mine wireless sensors and mine wireless actuators, wherein the underground mine switches form an optical ring network, each underground mine switch is connected and communicated with the mine substations, and each mine substation is also communicated with the mine wireless sensors and mine wireless actuators. The mine safety monitoring system is used in coal mine monitoring.

The invention discloses a novel ultra-wide front fulcrum cable-stayed hanging basket thrust device which comprises a supporting block, a fixed support and a movable support, wherein the supporting block is provided with a penetrating cross rod, a horizontal square steel column, a first fixing steel bar and a first supporting foot; the fixed support comprises an antiskid plate, an L-shaped supporting plate and a lock catch frame, and a rectangular groove of a bottom plate of the lock catch frame is riveted with a female head lock catch; a rectangular groove of a top plate of the movable supportis riveted with a male head lock catch, a U-shaped plate of a female head lock catch and a U-shaped plate of the male head lock catch are clamped together to form a rectangular frame structure, and ahorizontal square steel column is movably sleeved with the rectangular frame structure. The invention further provides a corresponding use method. The female head lock catch and the male head lock catch with simple U-shaped frame structures are adopted; clutch locking and unlocking can be achieved only through forward and reverse sliding of the walking mechanism, namely, the whole walking-thrust-unloading work is completed, the mounting, fixing and dismounting process is simple, convenient and clear, the laying process of the cable-stayed hanging basket embedded part is greatly shortened, andthe hanging basket pouring construction speed of the cable-stayed bridge is increased.

The invention discloses an automatic motion device for the linear and transverse direction of an agricultural track. The device comprises the track composed of a linear track parallel to a ridge and a transverse track perpendicular to the linear track. A motion device is arranged on the track. The transverse track is arranged at one end of the linear track, the bottom of the motion device is provided with a linear wheel mechanism which can ascend and descend and is matched with the linear track, and the bottom of the motion device is further provided with a transverse wheel mechanism which can ascend and descend and is matched with the transverse track; the linear wheel mechanism and the transverse wheel mechanism are controlled by a master control computer, an in-place sensing point and a steering sensing point are arranged on the side of the transverse track of the track, a return sensing point is arranged on the side, away from the transverse track, of the linear track, and a sensing device matched with the multiple sensing points is arranged on the motion device and is in signal connection with the master control computer. The automatic motion device has the advantages of being reasonable in structure, small in floor area and capable of achieving pivot steering.

The invention relates to a submarine cable seismic exploration observation system. According to the submarine cable seismic exploration observation system of the invention, the cost for using an air gun quake source to excite seismic waves is low; reasonable relationships of excitation points and receiving points are designed; a longitudinal middle excitation and bilateral arrangement receiving mode of an original wiring harness-shaped orthogonal observation system is converted into a longitudinal arrangement two-end excitation and unilateral arrangement receiving mode; the excitation points of the air gun quake source are doubled; the positions of the excitation points are not repeated; and excitation points related to a gun line can be completed in one voyage of an air gun quake source boat. Compared with an original observation system, and according to the observation system of the invention, the number of recorded tracks is reduced to 1/2 of an original observation mode with the same amount of workload accomplished, and therefore, and total equipment investment quantity of the original observation mode can be decreased by 1/2, and at the same time, the workload of submarine cable laying and recovery, and wave detection point positioning can be decreased by 33.3%; with the same instrument resource investment, the number of effective excitation gunshots can be doubled, and instrument resource efficiency can be doubled.

The invention provides a communication method. The downlink communication operation of the communication method includes: an optical network unit receives an optical signal sent from an optical line terminal, and converts the optical signal into a digital signal, and sends the digital signal to a head end device; the head end device receives the digital signal and converts the digital signal into a carrier signal and sends the carrier signal to a repeater device; the repeater device receives the carrier signal sent from the head end device, and performs gain for the carrier signal, and sends the carrier signal after gain to a terminal device; and the terminal device receives the carrier signal, sent from the repeater device, after gain, and converts the carrier signal after gain into a digital signal, and sends the digital signal to a first user terminal.

A ship engine room automatic alarm system is provided, which relates to the technical field of ship engine room alarming. The invention comprises an engine room comprehensive monitor and alarm device, an engineer calling main control device, a RS485 communication interface and two groups of CAN BUS on-site bus. The engineer calling main control device is connected to the engine room comprehensive monitor and alarm device via a two-way transmission signal of RS485 communication interface; the engineer calling main control device is connected to a group of CAN BUS on-site bus via two-way transmission signal; this group of CAN BUS on-site bus is respectively connected to a plurality of external extension points via two-way transmission signal; the engine room comprehensive monitor and alarm device is connected to another group of CAN BUS on-site bus via two-way transmission signal; this CAN BUS on-site bus is respectively connected to a switch degree output module, a simulation degree collection module and a plurality of switch degree collection modules via two-way transmission signal.

The invention discloses a numerical control machine tool remote control system in the field of a numerical control machine tool. The system comprises a monitoring sensor installed on the numerical control machine tool, the signal output end of the monitoring sensor is connected with the signal input end of a data processing module through an A/D data collection card, the signal input end of the data processing module is connected with the signal input end of a data transmission module, the signal output end of the data transmission module is connected with the signal input end of a diagnosis service module through a local area network, the signal output end of the diagnosis service module is connected with the signal input end of a modem, and the modem is connected with a host computer through the Internet. According to the invention, the real-time working state of the numerical control machine tool is uploaded to the host computer through the Internet, such that the purpose of real-time monitoring of the operation state of the numerical control machine tool is achieved, cable laying is reduced, the production cost is decreased, and the system can be applied to a numerical control machine tool control system.

Based on communication protocol CobraNet, the method through network audio frequency interface device and control device realizes transmission and switch of audio signal on Ethernet. The method includes following steps: signal conversion, signal composite, signal transmission, signal reception and decomposition, signal transform and switch control. The system simplifies design and construction of transmission and switch system, guarantees signal quality and flexible control modes.

The invention discloses an intelligent monitoring system for a power distribution room. The measurement and control functions of the low-voltage side and low-voltage outgoing line of a distribution transformer can be realized by using an intelligent controller and a concentrator; detection of phase loss, zero break, overload, electric leakage can be realized; and the releasing of an ordinary molded case circuit breaker can be controlled, so that protection can be performed on personal security and user equipment, and user faults can be prevented from enlarging to affect medium voltage power grids. A controller is connected to the concentrator through zigbee in a wireless manner, and data can be transmitted to a user mobile phone APP through a GPRS after collected by the concentrator, so that the real-time monitoring of the operation states of low-voltage outgoing line switches can be realized; and through the adoption a plurality of technological means such as self-describing protocols, wireless transmission, multi-device cascade, CT open circuit overvoltage protection, clip electricity taking, integral fixation of the controller and CT, on-site installation without power failure,the reduction of line paving due to wireless interconnection, and unified protocols for easy debugging can be realized, so that construction efficiency can be greatly enhanced.

The invention provides an intelligent household control system and method. The system comprises at least one sensor, at least an intelligent household electric appliance, a user terminal and a wireless monitoring camera, wherein the sensor detects state information in the household; the user terminal is used to receive state information back fed to the household by the wireless monitoring camera, and sends a control instruction to the wireless monitoring camera; and the wireless monitoring camera communicates with the intelligent household electric appliance and ht user terminal, controls the intelligent household electric appliance according to the state information detected by the sensor, and controls the intelligent household electric appliance according to the control instruction. The intelligent household control system does not need an intelligent control host, it is not required to lay a lot of cables, limit of different cables is pushed, system installation becomes easier, and the expansibility of the system is improved.

The invention discloses a power distribution network single-phase earth fault sensing method based on a transient state and a steady state of a phase current. The method comprises the steps: collecting the three-phase current of a power distribution network, synthesizing a zero-sequence current, calculating the amplitude of a fundamental wave, and obtaining a fault signal when a single-phase earth fault occurs, thereby obtaining a fault occurrence moment and a line fault component current; solving the fundamental component amplitude and the high-frequency component amplitude of the fault component current, and judging whether the quantitative relation between the fundamental component amplitude and the high-frequency component amplitude meets the fault sensing criterion or not; when the criterion is met, judging that the system has the grounding fault through the resistor, and obtaining a fault path positioning result by combining the steady-state characteristic of the fault component current with the variance; otherwise, judging that the system has an arc earth fault, and obtaining a sampling point at the fault occurrence moment and a three-phase current abrupt change direction by combining the transient characteristics of the fault component current with improved S transformation to obtain a fault path positioning result. The method is suitable for various single-phase earth fault types occurring in the power distribution network, and the operation reliability of the power distribution network is effectively improved.

The invention discloses a car space mistake proofing detecting method for a vertical lifting type mechanical three-dimensional parking garage. An optoelectronic signal is sent by diffuse reflection optoelectronic switches, wherein the optoelectronic switches are installed in the middle of the top of a parking garage lifting area and on the two sides of a lifting fork. Whether a vehicle is parked in the middle is judged through a method that whether the optoelectronic signal reflected by a diffuse reflection plate is received or not, and overlapping detection of car space is judged through twice detection. The mistake proofing detection for the whole parking garage can be finished by only controlling three detecting points through a PLC. Compared with the prior art, the car space mistake proofing detecting method has the advantages that the control over the detecting points is greatly reduced, the number of auxiliary devices installed on the three-dimensional parking garage is reduced, the working efficiency and the accuracy of the PLC are effectively improved, and the accidents caused by mistaken parking are greatly reduced.