364results about How to "Improve quality reliability" patented technology

The invention provides a polymer modified asphalt, and the weight of the components comprising as follows :45-55% matrix asphalt, 4 - 8% blend oil, 12 - 14% of SBS ,5-9 % APAO, 2-7% of High-temperature improvement and 15-20% filler. It also offers polymer modified asphalt, which made of waterproof membrane and the railway bridge, highway bridge deck waterproofing project applications. The invention of these waterproofing membrane have a high standard of waterproof function, it can withstand high intensity of railway bridge and particularly high stress dynamic load .It also have excellent performance on water-resistance, high and low temperature resistance, adhesion, crack resistance, fatigue resistance and other aspects .it can be used for railway bridge and the road deck waterproofing works.

The invention discloses an intelligent electric meter system for residents for an intelligent smart grid. According to the intelligent electric meter system for the residents for the intelligent smart grid, one intelligent electric meter is arranged in home of each resident, two control terminals are respectively arranged on each controlled electric appliance and each user switch, and each distributed power supply is provided with a distributed power supply access device; each control terminal and the distributed power supply access device are interconnected through a PLC (Programmable Logic Computer) communication network, and the intelligent electric meter and a high-class measuring system AMI (Advanced Metering Infrastructure) carry out information interaction. The intelligent electric meter system is suitable for the residents having tiered pricing for electricity and time-sharing pricing for electricity, and aims at minimum electric charge expenditure of users, and is used for intelligently controlling the electric appliances and the distributed power supplies of the residents so as to realize peak clipping and valley filling of the electric charge, and provide power supply quality and power supply reliability.

The invention discloses a resident intelligent energy management system suitable for an intelligent power grid. Due to the adoption of the resident intelligent energy management system, peak and off peak load regulation of a power load is realized, and the power quality and power reliability are improved. An intelligent energy management controller and an intelligent electric meter are arranged in the home of each resident; a control terminal is arranged on each controllable domestic appliance and a user switch respectively; a distributed power supply accessing device is arranged on each distributed power supply; the controller is connected with the control terminal and the distributed power accessing device through a Zigbee wireless communication network; the intelligent electric meter is connected with the distributed power supply accessing device and the controllable domestic appliance; the controller is communicated with the intelligent electric meter through a bus; the intelligent electric meter is further connected with the secondary sides of a voltage mutual inductor and a current mutual inductor; the controller undergoes information interaction with a high-level measuring system AMI (Advanced Metering Infrastructure) of a main station through Ethernet communication; the controller is used for controlling switching of the control terminal and the distributed power supply accessing device; the control terminal is used for submitting the state of the switch to the controller; the controller is used for monitoring the state of the switch.

The invention discloses one high emission rate infrared flexible heating element, which comprises heat conductive isolation distribution layer, heat melt glue network film A, electrode, heating part, heat melt glue film B and isolation layer with each parts combined into one part by glue and sealing types. The invention also discloses the heating element main process and property and its process method.

A dynamic reconstruction method considering distributed power supply and soft switch access for a power distribution network comprises the steps of building a source-load stochastic model, and performing stochastic power flow analysis on the power distribution network, wherein source-load stochastic model comprises a wind power generation system stochastic model, a solar photovoltaic power generation system stochastic model and a load stochastic model, and the stochastic power flow analysis of the power distribution network is based on a cumulant method; building an intelligent soft switch running model and a dynamic network reconstruction model, wherein the intelligent soft switch running model is expressed by capacity constraint of an intelligent soft switch converter, and the dynamic network reconstruction mathematical model comprises a target function and a constraint condition; and solving the built models by employing a genetic algorithm. The network reconstruction problem of thepower distribution network containing a distributed power supply and an intelligent soft switch is solved, a load among feeders of the power distribution network is balanced, the integral power flowdistribution of the system is improved, the overload is eliminated, the voltage level is improved, the electric energy quality and the power supply reliability are improved, the network loss is effectively reduced, and the running economy of the power distribution network is improved.

The invention provides an edge micro-plasma arc welding forming control method based on identification of a dynamical system and belongs to the technical field of welding quality control. Aiming to solve the problems of unstable welding process and non-uniform weld forming caused by energy parameter fluctuation, heat dissipation condition change and the like in a thin-walled edge joint pulsed micro-plasma arc welding process, the method adopts a molten pool vision sensing technology for extraction of front transient image characteristics of a molten pool, adopts an Elman dynamical recurrent neural network for off-line system identification in the thin-walled edge joint pulsed micro-plasma arc welding dynamic process and realizes on-line control of mushroom weld forming in the thin-walled edge joint pulsed micro-plasma arc welding process through real-time adjustment of welding process parameters. The edge micro-plasma arc welding forming control method can improve the quality reliability of welded products and increase the one-time welding qualification rate, can be applied to an edge joint pulsed micro-plasma arc welding process for thin-walled metal precision components in the fields of aerospace manufacture and the like and is particularly applicable to precision welding occasions for elastic components such as ultra-thin-walled capsules, bellows and the like.

The invention relates to a fresh-keeping method and a fresh-keeping storehouse of a biological freezing point for fruits belonging to an agricultural products processing field. The fresh-keeping method of the biological freezing point for the fruits includes the steps: spraying calcium salt in the process of cultivating, sleeving a transparent bag or spreading a reflecting film to improve hardness and sugar degree of the fruits; carrying out rapid cooling before putting in the fresh-keeping storehouse in a pre-cooling room; after putting in the fresh-keeping storehouse, processing with a preservative; then regulating the temperature to a critical point of the freezing point with humidity of over 90%; adopting stage heating after leaving the fresh-keeping storehouse. Preservation period of late maturing peach is prolonged to 3 months; the fruits processed by the steps are fresh as before and the phenomenon such as browning, softening and rotting do not exist. The cost of the supporting fresh-keeping storehouse constructed based on the invention is about 1.2 times of that of a low temperature cold storage and 1/2-2/3 times of that of an air conditioned storehouse with the same volume; fresh-keeping effect is remarkably superior to the low temperature cold storage and the air conditioned storehouse; the invention can promote the creativity and development of relevant industries such as a transport case and a transport vehicle of the biological freezing point as well as the relevant culture of the biological freezing point; the invention is a technology with a wide prospect and favorable economic benefits.

The invention provides a communication method of a wireless earphone, the wireless earphone and a wireless earplug, which relate to the technical field of wireless communication. The wireless earphoneprovided by the invention comprises a main earphone and a slave earphone, wherein the main earphone and the slave earphones carry out data interaction through wired or wireless connection. The main earphone establishes wireless connection with telephone equipment and realizes bidirectional communication based on a first communication link, and the main earphone and the slave earphone share link information corresponding to the wireless connection between the main earphone and the telephone equipment, so that the slave earphone receives first voice data sent by the telephone equipment based onthe link information shared by the main earphone; and if one of the main earphone and the slave earphone does not correctly acquire the first voice data, the incorrectly acquired side receives the first voice data forwarded by the other side. According to the technical scheme provided by the invention, the plurality of different earphones receive the first voice data of the telephone equipment atthe same time, so that the communication quality is improved under the condition that the retransmission times of the wireless earphone and the telephone equipment are not increased.

The invention discloses a transient overvoltage monitoring method. The method includes the following steps: setting sampling parameters; acquiring voltage signals from a high-voltage bus through a voltage sensor; carrying out signal preprocessing on the acquired voltage signals; displaying a voltage waveform in real time; judging whether a voltage is overvoltage or not; storing overvoltage data; carrying out time-domain analysis on the overvoltage; and carrying out frequency-domain analysis on the overvoltage. Through online monitoring of the overvoltage, various overvoltage types and overvoltage generation reasons and effects on an electric power system are analyzed, an improvement scheme is provided, damage, caused by the overvoltage, low voltage and electric energy quality, to the electric power system and electric devices is effectively reduced, and quality, safety and reliability of power supply of the electric power system are promoted.

The invention relates to a photovoltaic power supply hybrid energy storage system which comprises a super capacitor, a storage battery pack, a backup energy storage system, three energy storage inductances, six IGBTs (Insulated Gate Bipolar Transistors) with antiparallel diodes and a state monitor. After the super capacitor is connected in series with a first energy storage inductance, one end of the super capacitor is connected with a cathode of a photovoltaic power supply DC (Direct Current) bus and the other end of the super capacitor is respectively connected with the cathode and an anode of the DC bus by a first IGBT and a second IGBT; after the storage battery pack is connected in series with a second energy storage inductance, one end of the storage battery pack is connected with the cathode of the DC bus and the other end of the storage battery pack is respectively connected with the cathode and the anode of the DC bus by a third IGBT and a fourth IGBT; and after the backup energy storage system is connected in series with a third energy storage inductance, one end of the backup energy storage system is connected with the cathode of the DC bus and the other end of the backup energy storage system is respectively connected with the cathode and the anode of the DC bus by a fifth IGBT and a sixth IGBT. According to the invention, the advantages of three types of energy storage units are complemented; power supply quality and utilization rate of light energy are improved; operating life of the system is effectively prolonged; and operating cost is reduced.

The invention discloses a complex line full parallel AT traction power supply system and method based on comprehensive energy. The system comprises a complex line full parallel AT traction power supply system and a comprehensive energy system; a photovoltaic array, a wind generating set and a fuel cell are connected in parallel to a direct current bus, electric-hydrogen storage is added to supplement power vacancy and peak load shaving, comprehensive energy is accessed into a traction power supply system through a reasonable mode, the power and the state of each microsource are detected in real time, the energy optimization management by taking the lowest total generation cost as a target is achieved based on a particle swarm optimization. The complex line full parallel AT traction powersupply system and method based on comprehensive energy can ensure the safety and stability of the system and the high reliability of power supply; the traction energy consumption structure is optimized, and the new energy consumption level is improved; and the method meets the development direction of national energy conservation and emission reduction, and reduces the power supply requirement ofthe electrified railway on the power system to a certain extent.

The invention relates to an electric energy meter running state evaluating method. The electric energy meter running state evaluating method comprises the following steps of establishing an electric energy meter running state evaluating model; selecting factors affecting the running state of an electric energy meter as state variables; performing functional unit division on the state variables according to impact categories of the running state of the electric energy meter; according to the characteristics of the state variables, establishing a state variable scoring model and determining evaluating content; according to the scoring model and the evaluating content, computing the evaluated scores of different state variables; computing a comprehensive evaluation score of the running state of the electric energy meter; establishing an interrelation model of the comprehensive evaluation score and the fault rate of the electric energy meter. The electric energy meter running state evaluating method solves the problems of reasonable assessment and correct evaluation of the measurement running state of the electric energy meter.

The invention discloses a system and a method for intelligent and progressive electricity utilization management based on an intelligent and progressive utilization management device. The system comprises a distribution room transformer (3), an intelligent and progressive electricity utilization management device (1), an intelligent and progressive electricity utilization control and management system (2), a controllable electricity utilization loading device (4) and a movable client (5), wherein the court transformer (3) and the controllable electricity utilization loading device (4) reach the intelligent and progressive electricity utilization control and management system (2) through the intelligent and progressive electricity utilization management device (1) via a wired communication network mode or a wireless communication network mode; the intelligent and progressive electricity utilization management device (1) realizes progressive management on electricity utilization equipment of users on the user side, and electricity utilization equipment can be regulated flexibly and automatically for progressive operation according to the court transformer load rate and the loading rate of the current power distribution network. According to the invention, the loading utilization ratio of power supply equipment is increased, grid running cost is reduced, grid construction investment is reduced, state grid investment scale is saved, and safe and reliable operation of a grid is ensured.

The invention relates to a thermal-insulating anti-scouring heat shielding layer and a preparation method thereof. The heat shielding layer comprises an inner thermal insulating layer and an outer anti-scouring heat shielding layer, wherein the inner thermal insulating layer is prepared by carrying out a sol-gel reaction on a modified phenolic resin solution and a fiber preform, aging and drying;and the outer anti-scouring heat shielding layer is prepared by winding and molding an ablation resistant resin solution and an ablation resistant fiber fabric. The preparation method comprises the following steps: sleeving and adhering the inner thermal insulating layer and the outer anti-scouring heat shielding layer, thereby obtaining the thermal-insulating anti-scouring heat shielding layer. The high-temperature-resistant anti-scouring heat shielding layer is increased on the outer side of the inner thermal insulating layer material, and the thermal-insulating anti-scouring heat shieldinglayer prepared by compounding the two layers together overcomes the defect that the inner thermal insulating layer material is poor in scouring resistance. Moreover, the weight of the overall materialcan be obviously reduced, and the effective flight load is improved.

The present invention discloses a water machine anti-freezing control method. The method comprises: obtaining the current heat exchanger usage state in the operation mode and the running mode; when the running mode is in the cooling mode or the cooling-heating water mode, and when the coating water temperature of the air conditioning heat exchanger is lower than a preset lowest value, controlling the air conditioning heat exchanger to perform automatic reset protection for limited times; when the heat exchanger is not used in the running mode, controlling the water pump of the heat exchanger into the running state and going on for a preset time, if the water inlet temperature is lower the lowest value, controlling the stopping of the machine and controlling to enter the running mode corresponding to the heat exchanger to improve the water inlet temperature of the heat exchanger. The water machine anti-freezing control method can perform different anti-freezing protection aiming at different running modes to ensure that the system can stably operate in each mode so as to improve the stability and the reliability. The present invention further discloses an air conditioning device of the water machine anti-freezing control system and comprising the same.

A bearing device for a wheel enabling a reduction in weight and size and the number of parts and capable of preventing rain water and dust from entering therein and differential gear oil from leaking, comprising an inside member (3) having a hub wheel (1) in which a bearing for the wheel is installed in an opening part between an axle tube (H) supported on the lower surface of a vehicle body and a drive shaft (D/S) inserted into the axle tube and the bearing for the wheel is formed integrally with a wheel mounting flange (6) at one end and a cylindrical part (7) is formed thereon and an inner ring (10) press-fitted into the cylindrical part (7), an outer member (4) inserted onto the inner member (3), and multiple rows of rolling elements (5) rollingly stored between the inner member (3) and the outer member (4). The inner ring (10) is prevented from coming off in the axial direction by a clamping part (13) formed by elastically deforming the end part of the cylindrical part (7) in the radial outer direction. A cap (9) formed of a steel plate core (9a) formed in a generally channel shape in cross section and an elastic member (9b) joined to the fitting part of the core (9a) is press-fitted into the inner diameter part of the wheel mounting flange (6).

This invention relates to one multi-function cable linear temperature fire detector, of which tow ends are connected to resistance signal process device and terminal case to form enclosed signal collection circuit to realize the temperature degrees and change rate warm system and the monitor system, and which is characterized by the following: the two spring metal conductors on cable are set with macromolecule polymer insulation materials or PTC property materials layers and NTC or CTR or semiconductor materials or insulation layers covered with two pieces of wires impacted into one layer of insulation protection cover for cable; the resistance signal process device monitors the change between the cover layers.

The invention provides a basement bottom plate having an advanced-waterstop post-cast strip structure. The basement bottom plate comprises various bases and various corresponding post-cast strips connected among the bases. Each post-cast strip comprises a concrete backing layer, a waterproof layer, a waterproof protective layer, an advanced-waterstop strip and a post-cast strip, wherein the advanced-waterstop strip comprises cast-in-situ concrete, a concrete cushion block, a lower filling component, a lower left reinforcement frame, a lower right reinforcement frame, a waterstop component, an upper filling component, an upper left reinforcement frame and an upper right reinforcement frame, the post-cast strip comprises main reinforcement, a reinforcement net, a steel plate net, a fine-mesh steel wire net, advanced-cast concrete and post-cast concrete, the waterstop component comprises a rubber waterstop belt, a flat iron sheet and fastening bolts, and each filling component comprises a filling plate, a formwork and a plastic cushion block. The advanced-waterstop post-cast strip structure overcomes defects that the rubber waterstop of the existing advanced-waterstop post-cast strip is easy to deviate and crack, the filing materials thereof are easy to deform and the like, and accordingly can prevent the basement bottom plate from water leakage and seepage.

The invention discloses a cascaded flexible AC (alternating-current) link converter topological structure which comprises a three-phase AC power supply, three power regulation units, three Buck type direct AC-AC converters UT-AC, a three-phase multi-winding isolation transformer and three LC low-pass filters, wherein each power regulation unit is formed by two bipolar direct type AC-AC convertersBT-AC. According to the topological structure of the invention, the power flow between interconnected feeder lines can be controlled, the power restoration of an isolated load can be realized under the condition of a flexible interconnection fault of feeder lines in a power distribution network, the permeability of distributed power generation in a power distribution network can be improved through the flexible interconnection of the feeder lines in the power distribution network, and the electric energy quality and the power supply reliability of the power distribution network are improved.

The invention relates to management systems for unitarily managing and controlling information of a plurality of types of lens processing machines for manufacturing a glass lens of predetermined shape from a grass material. Its object is to construct production systems relying upon no experts, improve the reliability of quality management, make the products per worker the maximum, and make the stock in each process the minimum. To achieve this object, in a lens processing system comprising the plurality of types of processing machines for lens processing and an operation terminal connected with the processing machines through a network and capable of changing the settings of the processing machines, the operation terminal or a server unitarily manages various data every series unit and calculates the optimum settings for the processing machines every series unit.

A multifunctional station for leather product treatment includes at least a cavity with inner part and at least an upper cover casing of a air exhaust port connected with a vacuum pump. The upper cover casing is predetermined to connect with at least a steam interface of peripheral steam generator. Each cavity is provided with at least a near infrared radiation type heating lamp, and a reflection plate with parabolic profile and with inner reflection surface treated through mirror, which is disposed around the middle luminous part of the heating lamp. Each upper cover casing is capable of combining temporarily with corresponding lower carrying tray for putting the treated leather products. No matter the multifunctional station for leather product treatment is set independently, or disposed along continuous production line, the operation of upper cover casing is capable of being programmed through an automatic control element, and performing treatment to the leather products, e.g. drying activation of agglutinant or softening, setting of leather products, etc.