77results about How to "Reduce the difficulty of engineering construction" patented technology

The invention discloses a sludge curing material for comprehensively utilizing phosphorous gypsum. The sludge curing material consists of the following materials in percentage by weight: 20%-60% of phosphorous gypsum, 5%-25% of coal ashes, 10%-30% of mineral powder, 8%-25% of limestone and 0.2%-3% of an activator. According to the sludge curing material, the waste phosphorous gypsum is used as the main material and supplemented with industrial waste such as the mineral powder, the coal ashes as well as limestone or cheap materials, thereby realizing recycling the industrial waste, and lowering environmental pollution; meanwhile, sludge curing production cost is lowered, quality of a sludge curing product is improved, engineering construction application such as road foundation and foundation filler is realized, needs of aggregate for building are lowered, and therefore, construction material cost and transportation cost are lowered.

The invention discloses a split plugging waterproof system. According to the system, the surface of a joint needing plugging water prevention of a waterproof plate with good water resistance is processed into a hydrophobic surface, the waterproof plate is separately used or assembled with a waterproof sheet with a hydrophobic surface, two hydrophobic surfaces are closely fitted together face to face, or space between the hydrophobic surfaces is sufficiently and compactly filled with surface hydrophobic substances or filled with materials which are uniform in texture and easily deformed under stress, infiltration or flow of water solution between the closely fitted hydrophobic surfaces is prevented, and a waterproof task is completed. The split plugging waterproof system plugs and preventsleakage water by the aid of material surface properties and solves the problems that an existing overall waterproof technique is not long in waterproof service life, difficult in construction and thelike.

The invention discloses a flow guiding type or flow leading type automatic drainage waterproof system. According to the flow guiding type or flow leading type automatic drainage waterproof system, the surface properties, including the hydrophilicity and the hydrophobicity, of objects are fully utilized, water flow on a vertical wall surface with low hydrophobicity or hydrophilicity or accumulated water in a drainage ditch can be separated through leading and guiding or discharged through leading, or of each joint or the portion around each joint of the vertical wall surface and the inner side of the outer side wall and the upper edge of the inner side of the outer side wall of the drainage ditch are processed into the surfaces with hydrophilicity, water flow is prevented from being leaked into the joints, when the water level is slightly higher than the side wall of the drainage ditch, water is prevented from overflowing out of the side wall of the drainage ditch, and therefore the drainage performance of the vertical wall surface and the drainage performance of the drainage ditch are improved. By the adoption of the flow guiding type or flow leading type automatic drainage waterproof system, the technical problems that an existing flashing technology has high requirements for a construction technology, weather and the quality of a sealing material, the waterproof period is short, and guiding of accumulated water in the middle of the drainage ditch cannot be achieved are solved, and all products can be made of standard sections or prefabricated parts.

The invention relates to a gear position identifying device and an identifying method thereof for a multi-speed motor, and the identifying method comprises the following steps: collecting neutral line current of the multi-speed motor through a current sensor, and obtaining an alternating current signal which is proportional to the neutral line current of the multi-speed motor; then rectifying the alternating current signal to a direct current signal through a rectifier circuit; then accessing the direct current signal into an I/V converting circuit, converting the direct current signal to a voltage signal through the converting circuit; and finally accessing the obtained voltage signal into an MCU core module for carrying out state judgment through a built-in identifying program. The identifying method can identify and determine the running state of the multi-speed motor only by collecting the neutral line current of the multi-speed motor and then comparing the current equivalent threshold of the known fixed gear position with the real-time collected value I. The identifying device only needs to be connected with a neutral line of the multi-speed motor, has the advantages of high safety, simple structure, low cost, high identification precision, convenient maintenance, repair and debugging, and can reduce the engineering construction difficulty and be conductive to popularizing the device.

The invention discloses a split drainage waterproof system which solves the technical problems of an existing waterproof engineering. The waterproof engineering is developed towards a plugging and draining combined mode from a past strict and completely closed waterproof mode, construction difficulty and production cost are greatly reduced, requirements for places, processes and weather are not high, waterproof deadline is long, harmful substances in the construction process are omitted, the waterproof system is environmentally friendly and meet requirements of environmental protection, and the waterproof system can be produced by existing material standard profiles or prefabricated parts and used for various engineering needing waterproof treatment.

The invention discloses an illegal external connection monitoring method based on wireless and wired data flow similarity analysis, which utilizes illegal external connection monitoring equipment provided with a wireless communication module to realize monitoring, and comprises the following steps of: mirroring all internal network data to the illegal external connection monitoring equipment; enabling the illegal external connection monitoring device to receive all internal network flow data; recording all network communication data; performing feature analysis on the network communication, and constructing a network communication model of the network communication; enabling the illegal external connection monitoring device to receive all wireless network flow data; recording all encryptedwireless network communication data between the two; performing feature analysis on the encrypted wireless network communication, and constructing a network communication model of the encrypted wireless network communication; comparing the two network communication models, and judging whether the network communication model is illegally externally connected or not according to the similarity. According to the invention, the wired network communication model and the wireless network communication model are compared, so that illegal external connection behaviors can be accurately monitored in real time.

The invention provides a mobile communication high-power multi-antenna distribution and coverage method and a mobile communication high-power multi-antenna distribution and coverage system. The system comprises base station amplifier and POI (Point Of Interface) integrated equipment and a low-power multi-antenna coverage system, wherein the base station amplifier and POI integrated equipment comprises a signal separation device, a high-power base station amplifier, an uplink POI and a downlink POI; the signal separation device is connected with the high-power base station amplifier and the uplink POI respectively; the high-power base station amplifier is connected with and the downlink POI; the signal separation device is connected with a corresponding system type base station; the low-power multi-antenna coverage system comprises a plurality stages of passive devices and antennae with the quantity corresponding to the stage number of the passive devices; any stage of passive device is connected with the corresponding antenna; the first stage of passive device on a down link is connected with the downlink POI; the first stage of passive device on an up link is connected with the uplink POI. According to the method and the system, the coverage effect is improved, the engineering construction difficulty is reduced, the manufacturing cost of the system is reduced and the maintenance difficulty is reduced.

The invention provides a double-refrigerant circulating natural gas liquefaction system based on a wound-tube heat exchanger. The double-refrigerant circulating natural gas liquefaction system is characterized by comprising a precooling level compression module, a precooling level heat exchange module, a copious cooling level compression module and a copious cooling level heat exchange module which are connected, wherein the precooling level compression module comprises buffer tanks, compressors and coolers which are connected in sequence; a precooling refrigerant low-pressure outlet of the precooling level heat exchange module is connected with one of the buffer tanks; a natural gas first-level outlet is connected with a gas-liquid separator; the outlet of one of the coolers is connected with another gas-liquid separator; the copious cooling level compression module comprises buffer tanks, compressors and coolers which are connected in sequence; a copious cooling refrigerant low-pressure outlet of the copious cooling level heat exchange module is connected with one of the buffer tanks of the copious cooling level compression module; a natural gas second-level outlet is connected with the exterior; a natural gas second-level inlet is connected with one of the gas-liquid separators; the outlet of one of the coolers of the copious cooling level compression module is connected with a copious cooling refrigerant first-level inlet; and a copious cooling refrigerant first-level outlet is connected with a gas-liquid separator of the copious cooling level heat exchange module. According to the double-refrigerant circulating natural gas liquefaction system, two-level independent mixed refrigerants circulate and are overlaid, the system process is concise, the structure is compact, the production load operational flexibility is high, the integral machine adopts modularized design, and the system is applicable to offshore flotation natural gas production devices.

The invention discloses a drainage type waterproof system, which fully utilizes the surface performance of hydrophilicity and hydrophobicity of substances to drain, guide and separate water flow on avertical wall surface or accumulated water in a drainage ditch which has weak hydrophobicity and hydrophilicity with hydrophilic substances, or process each interface or the vicinity of each interfaceof the vertical wall surface and the inner side of the outer side wall or the upper edge of the inner side of the outer side wall of the drainage ditch into a hydrophobic surface, so as to prevent water flow from leaking into the interface or prevent the water surface slightly higher than the side wall of the drainage ditch from overflowing from the side wall of the drainage ditch, so that the drainage performance of the vertical wall surface and the drainage ditch is improved, the technical problems of the existing flooding technology, such as high quality requirements for construction technology, meteorology and sealing materials, short waterproof life and drainage of accumulated water in the middle of the drainage ditch are successfully solved, and all products can be produced with standardized profiles or prefabricated components.

The invention discloses a steel, FRP (fiber reinforced plastic) and environment-friendly concrete combined column and a building method thereof. The combined column comprises at least one vertical section, and the vertical section comprises a square steel tube and a round FRP tube. The round FRP tube is arranged in the square steel tube, common concrete is placed between the square steel tube and the round FRP tube in a filling manner, and the round FRP tube is filled with environment-friendly concrete. According to the steel, FRP and environment-friendly concrete combined column, by using the advantages of light mass, high strength and good corrosion resistance of the FRP material, not only the cost can be reduced by adopting the sustainable development material, but also the characteristics of high bearing capacity, high ductility, light weight and the like of the combined column are ensured. Meanwhile, the square steel tube improves the rigidity and ductility of the combined column, improves the shock and impact resistance, and is favorable for node connection, the construction difficulty is reduced, so that the combined column becomes a low-cost and high-performance member, and can be used for engineering structures of high-rises, large-span bridges and the like, and high technical and economic benefits are obtained.

The invention discloses a remote radio unit (RRU) remote system and relates to a signal coverage system. The system comprises a pRRU unit, a near-end machine, a far-end machine, a combiner, an antenna unit and a network management system, wherein a signal input end of the near-end machine is connected with a signal output end of the pRRU unit, a signal output end of the near-end machine is connected with a signal input end of the far-end machine, the signal input end of the combiner comprises two paths of signal input ends, one path of signal input end of the combiner is connected with the signal output end of the far-end machine, the other path of signal input end of the combiner is connected with 2G, 3G or 4G signals, the signal input end of the antenna unit is connected with the signal output end of the combiner, and the signal input end of the antenna unit is connected with the signal output end of the far-end machine. The network management system is connected with the near-end machine, and in the original 2G3G4G signal coverage scene, when 5G coverage is established, signal coverage is completed through a PRU remote system after only one small base station information source is established.

The invention discloses a waterproof system. The waterproof system involves at least two supporting structures, wherein at least one of the two supporting structures is of a surface non-infiltrating structure; and the waterproof system further involves a waterproof strip (3) located at the joint of the surface non-infiltrating structure, and the waterproof strip (3) expands after absorbing water and is tightly attached to the surface non-infiltrating structure after expanding. The waterproof system solves the problems of short waterproof life, difficult construction and the like of an existingintegral waterproof technology.

The invention discloses a time division multiple access infrared opposite launching type pedestrian passage passing target detection method. One master transceiver unit and one slave transceiver unit oppositely arranged at the two sides of a passage constitute an infrared light detection pair. Multiple infrared light detection pairs are placed along the horizontal direction of the passage. The master transceiver units have functions including infrared light emitting, infrared light receiving, weak signal resonant selected-frequency amplifying, and signal shaping. The slave transceiver units are each additionally provided with an FIFO buffer relative to the master transceiver units. An emitted light pulse and reflected light pulse opposite launching technology based on time division multiple access is employed. The problem that a control detection line must be connected at both sides in infrared light channel detection is solved. A controller can judge whether an infrared transmission channel is smooth by only reading coding data output by the master transceiver units. The structure of the system is simplified. The difficulty of engineering construction is lowered. Adjacent detection pairs work in a staggered manner, so that the interference between adjacent infrared light detection pairs is avoided, and the reliability of the system is improved.

The embodiment of the invention discloses an AP box infinite power supply system and a power supply method based on the same to reduce construction difficulty, save cost and improve reliability of power supply. The system comprises a charging module, an energy receiving antenna and an energy storage device, wherein the charging module is disposed on a train and is configured to send energy wirelessly when the energy receiving antenna is within an energy receiving range; the energy receiving antenna is laid on train operation tracks and connected to the energy storage device for receiving the energy transmitted by the charging module and converting the energy into voltage to be supplied to the energy storage device; and the energy storage device is configured to charge its own energy storage apparatus by using the voltage provided by the energy receiving antenna, wherein the energy stored by the energy storage apparatus is used for powering an AP box.

The invention discloses a detection method of electronic article surveillance (EAS) equipment, which is characterized by comprising the following steps: (A) external electromagnetic environment information is acquired through a receiving unit of the equipment, and the external electromagnetic environment information is analyzed to get a phase point disturbing the clean environment, wherein the phase point is a work point A; (B) the one or more work points A are locked through a DSP LOCK digital signal processing technology, and the work points are locked so that during normal work, a transmitting unit of the equipment works in a time period t1 in front of the work point A, and the receiving unit is just in the work point A, namely, a time period t3; and (C) the equipment works normally: when that there is an electronic goods tag is determined, the tag is locked using an EAS LOCK system, a display unit displays information in a blink way, and the alarm is raised. Through the method, phase locking is carried out through passive inspection and active inspection to eliminate the interference of objects at other resonant frequencies in the environment, and the anti-interference abilityand sensitivity of electronic goods tag detection are improved.

The invention discloses a FRP-concrete prefabricated assembly combined structure. The FRP-concrete prefabricated assembly combined structure comprises an FRP-coral concrete structure column, an FRP-coral concrete structure beam, an FRP-coral concrete structure plate and an FRP-coral concrete structure wall; and the FRP-coral concrete structure column, the FRP-coral concrete structure beam, the FRP-coral concrete structure plate and the FRP-coral concrete structural wall are combined to use, and wherein the FRP-coral concrete structure column, the FRP-coral concrete structure beam, the FRP-coral concrete structure plate and the FRP-coral concrete structure wall are all composed of reinforcing pieces and coral concrete. According to the FRP-concrete prefabricated assembly combined structure,the field operation difficulty is greatly reduced, the project cost is saved, and the construction period is shortened; and moreover, the durability is good, the maintenance is easy, the later maintenance cost is saved, and meanwhile, local materials are obtained, so that the engineering construction difficulty is lowered.

The invention relates to a combined process for enabling effluent COD, BOD5, NH3-N and TP indexes to reach ground surface IV-type water standard. The combined process comprises the following steps: acoarse screen and a primary lifting pump room module are used for carrying out primary filtration and sewage lifting; a fine grid and a gas stripping grit chamber module are used for filtering and removing sand again; a primary enhanced efficient clarification tank module is used for carrying out PAC and PAM sewage treatment reaction; a fine grid and a secondary lifting pump room module are used for filtering again and lifting the sewage to increase a water head; a primary biological aerated filter module decomposes COD, BOD and NH3-N in the sewage; a secondary biological aerated filter moduleperforms nitration reaction by utilizing NH3N in the sewage; and magnetic powder is added into a magnetic coagulation clarification tank module, sludge flows back, and tiny flocs wrap the magnetic powder, so that subsequent flocculation and sedimentation are facilitated. The process is suitable for low-concentration town sewage treatment, and reaches the ground surface IV-class water standard; and the two stages of lifting pump stations reduce the filling and excavation work amount during construction, and are particularly suitable for places with poor geological conditions.

The invention discloses a preparation method for baseboard of main pipe and sluice and step-style construction joint for side wall of flow channel layer. Under the circumstance that the flow channel layer is the special-shaped structure of gradient section and with the adoption of floor pouring technique, the height of the side wall of flow channel layer within two thirds of the width of the outboard of side wall is about 0.5m. The improved section of the side wall of flow channel layer is segmented by adopting overhanging model. By means of welding, a sealing plate is connected with a reticulate frame. After the floor pouring process is finished, the formed faulting is used as the stress release channel for the side wall of flow channel layer. The preparation method for baseboard of mainpipe and sluice and step-style construction joint for side wall of flow channel layer can reduce the difficulty in constructing baseboard, enlarge the pouring space of concrete base slab and improve the managing and controlling level and quality of the floor pouring of concrete base slab. The preparation method for baseboard of main pipe and sluice and step-style construction joint for side wall of flow channel layer can use the formed faulting in the floor pouring section as the release channel for the side wall of flow channel layer to reduce the restriction of the baseboard on the flow channel layer, which is beneficial to control the cracks caused by the temperature of concrete on the side wall of flow channel layer. The sealing plate, together with the floor pouring section, has a good water proofing effect. In one word, the preparation method for baseboard of main pipe and sluice and step-style construction joint for side wall of flow channel layer can obviously save the time forconstruction and accelerate the process of construction.

The invention provides a communication device connection method and a system, and an optical port speed conversion device, and relates to the communication field. The optical port speed conversion device acquires output optical port speed of a superior communication device output optical port and input optical port speed of an inferior communication device input optical port, and establishes a superior communication link and an inferior communication link with a superior communication device and an inferior communication device respectively. The optical port speed conversion device converts the output optical port speed into input optical port speed and forwards optical port data of the superior communication device to the inferior communication device. Compared with prior art, the method, the system and the conversion device are characterized in that communication devices with different optical port speed are connected through the optical port conversion device, so the communication devices with different optical port speed can be linked; self-matching configuration of the optical port speed is achieved; compatibility between the communication devices can be improved; covering area of a base station is increased; flexibility of networking is improved; urban computer room selection difficulty level of operators is greatly reduced; and engineering construction and maintenance difficulty level is reduced.

The invention discloses a heat tracing cable state monitoring system and method based on wireless network transmission. At present, a power plant heat tracing cable is not provided with state monitoring, and a running state of the heat tracing cable is monitored only through daily inspection of maintainers and cannot be monitored in real time. The system comprises a Pt100 thermal resistance temperature measurement element (4), wherein the Pt100 thermal resistance temperature measurement element is connected with a temperature acquisition system (3), the temperature acquisition system is connected with a wireless acquisition terminal DTU (2), the wireless acquisition terminal DTU is connected with the Internet (13) through an antenna (1), the wireless acquisition terminal DTU is connected with a state acquisition system (6), the state acquisition system is connected with a state relay (7) and a heat tracing cable structure (5), the Internet is connected with a firewall (12) through a telecommunication network, the firewall is connected with a switch (11), the switch is connected with a data communication server (10), and the data communication server is connected with a computer control system (9). The heat tracing cable state monitoring system is used for wireless network transmission.

The invention provides a blockage guiding type water-proof system, which comprises a combined blockage guiding element, wherein the blockage guiding element comprises a non-infiltration part and a combination band arranged on at least one side of the non-infiltration part; and the combination band comprises at least one water loving band and at least one non-infiltration band, wherein the water loving band and the non-infiltration band are arranged at an interval. By use of the blockage guiding type water-proof system provided by the invention, in a use process, water flows which seep into thenon-infiltration part move to the water loving band along the non-infiltration part, and flow to a target water drainage system under the guidance of the water loving band, the non-infiltration bandin the combination band prevents the water flows from flowing to the outer side of the combined blockage guiding element, and a situation that the water flows spread in all places to generate leakagecan be avoided. Through the arrangement way, water which leaks to the combined blockage guiding element can guarantee to be gathered into the target water drainage system to be discharged, and the water prevention and water discharge effect of the blockage guiding type water-proof system is guaranteed.