35results about How to "Great practical significance" patented technology

The invention relates to an LSTM (Long Short-Term Memory)-RNN model-based air pollutant concentration forecast method. The method comprises the steps of monitoring and collecting air pollutant concentration data in a relatively long time; preprocessing historical data to construct training, verification and test sample data of a to-be-trained LSTM-RNN model; obtaining a pre-trained LSTM-RNN model through the training sample data, then performing fine adjustment and training through the constructed verification and test sample data to obtain LSTM-RNN model parameters, improving model precision by further correcting model parameters, and taking a corrected LSTM-RNN model as an air pollutant concentration forecast model; and finally taking the preprocessed air pollutant concentration data of a target city in the relatively long time as input data of the LSTM-RNN model, and performing model output to obtain a forecast result of air pollutant concentration at a current moment or at a moment in the future.

The invention relates to technical field of coated kraft liner producing method. The producing method comprises feeding surface pulp, lining pulp, core pulp and bottom pulp pumped from machine chest of pulping workshop into respective machine chest; slushing and pressure screening the lining pulp, the core pulp and the bottom pulp by offline back water bank, then slushing and pressure screening the surface pulp by the offline back water bank after removing impurities in the surface pulp in a low concentration sand remover, finally all the pulp entering into a flow box to flow onto wire; after the pulp flowing onto wire, feeding the pulp into a coating system after forming by a four-long net forming machine, second shoe pressing, drying, glue blending, redrying, and press polishing by a two-roller hot pressing machine; feeding the coated paper into a state-regulating cylinder and a soft calendar to finish, then reeling by a horizontal paper reeling machine. The coated kraft liner producing method disclosed by the invention can greatly reduce use cost of the coated kraft liner to make the domestic market not dependent on import any longer.

The invention discloses an access control system and method based on context awareness for a mobile platform. A plurality of technologies such as position locating, context awareness and data mining are utilized comprehensively. Specific to the problem of information protection during data operation of a mobile terminal, the advantages and disadvantages of an existing access control technology are analyzed, a scheme for deciding a security access strategy based on a user context is proposed, and an access control technology based on the context awareness for the mobile platform is designed and implemented. An environment in which a user is located is judged accurately through a position locating technology and an audio-based context identification technology, and a current environment safety risk level is judged optimally with a pedestrian crowding degree judgment algorithm. User access is influenced and classified information is operated, so that the classified information is prevented from being intercepted and peeked on the mobile platform.

The invention discloses an open-type food safety inspection system based on a mobile phone platform. The system comprises food to be measured 0, a food safety inspection information collection device 1, bluetooth communication 2 (or a USB interface), a mobile phone 3, GPRS communication 4, Internet 5, a food safety inspection database 6 and image cloud computing 7. The one-dimensional information respectively collected by the food safety inspection information collection device is analyzed directly by a piece of fuzzy iterative self-organizing data analysis program installed in the mobile phone to obtain inspection results. The mobile phone operates the host of the food safety inspection center database, and the image information is calculated through the image cloud computing to obtain the inspection result. The system provided by the invention has the advantages of simple and practical structure and convenient operation, and can form a real food safety socialization network.

The invention provides an indoor navigation method based on a video live-action navigation technology. The method comprises the steps of: obtaining a path dividing node through modeling, and obtainingan on-site path node matched with the path dividing node through first visual angle video shooting, on the basis of processing and compressing path node videos, combining all path nodes in pairs to form a video node combination pair, calculating the shortest path corresponding to the path node combination pair, and forming the shortest path video data represented by the path node, namely the indoor navigation video data. And the user acquires the position information as starting point information according to the path node label or the path node picture, selects a destination as terminal point information through the user interaction terminal, and requests the shortest path video data matched with the starting point information and the terminal point information. The invention also provides an indoor navigation system. The conflict problem of navigation precision and cost in the prior art is overcome, and indoor navigation with no signal source, high precision and low cost is realized.

The invention discloses a light conversion agent, a preparation method of the light conversion agent, a light conversion master batch, a preparation method of the light conversion master batch, a light conversion film and a preparation method of the light conversion film. The light conversion agent has a general formula of MO.xAl2O3: Mn, TM. The light conversion master batch comprises the light conversion agent and organic carriers. The light conversion film comprises the light conversion agent and light conversion agent carriers. The preparation method of the light conversion agent has simple processes. The light conversion agent comprises uniformly dispersed ingredients, has a cost greatly lower than that of the traditional light conversion agent, good stability and an emission spectrum matching with a plant photosynthesis spectrum, improves absorption and conversion efficiency of sunlight and improves a matching degree.

The invention discloses a planning method of an automatic driving system. The invention discloses a planning method of an automatic driving system. The method comprises the steps that S1, acquiring acurrent road environment image g by the system, using a filter in the convolutional neural network to extract the structure and road condition information Phi of the road image; and obtaining reward information R of the current road environment image through the mapping function fR, obtaining initialization of a kernel function Kwp for irregular graph convolution operation through the mapping function fP, and using an adjacent matrix of the image as an activation parameter of the Kwp to obtain an initial convolution operation sub-P. The deep reinforcement learning method based on the generalized asynchronous value iterative network model has the beneficial effects that the problem that an existing automatic driving system cannot carry out high-success-rate and high-accuracy road planning in a road environment with a complex structure and unknown road condition information can be well solved.

The invention discloses a method for detecting the ash content of flotation products, belongs to the technical field of coal dressing methods, and aims to calculate the ash content of the flotation products according to the floatation clean coal yield and the tailing yield. According to the technical scheme, a flow meter and a densimeter are installed on a floatation feed and floatation tailing pipeline, the feed density, the feed flow, the tailing density and the tailing flow of detected products are detected, the clean coal yield and the tailing yield of the detected products are calculated; a relation curve of the statistic flotation clean coal yield and the ash content and a relation curve of the tailing yield and the ash content of coal quality are respectively drawn by the combination of laboratory statistic data of the products, and the clean coal ash content and the tailing ash content of the detected products are calculated according to the curves and the clean coal yield and the tailing yield of the detected products. The method has the advantages of being simple, rapid, convenient to conduct and accurate, is a brand new detection method and creativeness in the field of floatation ash content detection methods, and has great value and significance, and by the adoption of the method, China is made to be at the forefront of the world in the field of the floatation ash content detection methods.

The invention provides an automatic bagging device for grains and relates to an automatic bagging device. The device comprises a grain bin and weighing system, a bag taking and bagging mechanism, an automatic grain bin opening and closing mechanism, a bag opening auxiliary device, an automatic transmission mechanism, an automatic sealing device, a grain bag sliding conveying platform and a control system, wherein the input end and the output end of the grain bin and weighing system are connected with the control system, and the output end of the control system is separately connected with the input ends of the bag taking and bagging mechanism, the automatic grain bin opening and closing mechanism, the bag opening auxiliary device, the automatic transmission mechanism and the automatic opening sealing device. The automatic bagging device not only can realize a function of automatically bagging grains, but also can realize automatic opening sealing and automatic transportation functions on the grains, so that a fully automatic production process is realized on the grains from bin discharging to packaging and transportation. The automatic bagging device not only greatly reduces labor force and increases the work efficiency, but also ensures bagging weight precision, thereby having wide popularization significance.

The invention relates to a composite photocatalyst and an application thereof. The composite photocatalyst comprises an N2 activation cocatalyst, a photogenerated hole capturing cocatalyst and a photocatalyst serving as a carrier and providing a photogenerated carrier; the N2 activation cocatalyst is alkaline earth metal oxide; the photo-generated hole trapping cocatalyst is CoOx or NiOx, whereinx is larger than or equal to 1 and smaller than or equal to 1.33; the photocatalyst serving as the carrier and providing the photo-generated carrier is TiO2 or / and g-C3N4. The composite photocatalysthas huge scientific value and practical significance for preparation of high-activity photocatalytic synthetic ammonia materials and construction of a mild and low-energy consumption photocatalytic synthetic ammonia system.

Belonging to the field of nano-functional device preparation, the invention specifically relates to a preparation method of a nano-lanthanum strontium manganese oxide / graphene composite wave absorbing coating. The method includes: preparing nano-lanthanum strontium manganese oxide powder by sol-gel auto-combustion technique, preparing lanthanum strontium manganese oxide / graphene composite powder by agglomeration technique, adding epoxy resin and a curing agent and mixing the materials into a slurry, taking high temperature alloy or other materials as the substrate, preparing a compact, uniform and thick nano-lanthanum strontium manganese oxide / graphene composite coating by spin coating technique, and then studying the wave absorbing performance. The method provided by the invention has the advantages of simple system structure, fast processing speed, strong regulation ability and wide wave absorbing band width, etc., is suitable for preparation of large area wave absorbing coating materials, and has significant commercial value and practical significance.

The invention discloses a method for ultrasonic extraction of procyanidine in receptaculum nelumbinis. The method comprises the following steps: cleaning the receptaculum nelumbinis, removing impurities and cutting into pieces; carrying out ultrasonic extraction by an ethanol solution; filtering, concentrating and drying to obtain a procyanidine extract. The procyanidine in the receptaculum nelumbinis is prepared from dry receptaculum nelumbinis as a raw material; the obtained procyanidine in the receptaculum nelumbinis is large in amount, good in curative effect, and more convenient to produce, the process is greatly simplified, and the method has great practical significance and promotional value.

The invention discloses a method and system for preparing silver copper oxide composite powder. The preparation method comprises the following steps that 1, silver raw material and copper raw materialare weighed according to the proportion, the sliver raw material and the copper raw material are dissolved to prepare a precursor solution containing silver nitrate and copper nitrate; and 2, an atomization treatment is carried out on the precursor solution to obtain precursor fog drops with the particle size being 0.01-100 [mu]m, and thermal decomposition is carried out on the precursor fog drops at the temperature of 400-1000 DEG C to obtain the silver copper oxide composite powder. The preparation system comprises an atomizing device, a heat treatment device and a cyclone collecting device. The preparation method is characterized in that a proper amount of C1-C4 alcohol is added when the precursor solution is prepared, and therefore the degree of sphericity of the silver copper oxide composite powder can be effectively controlled; a proper amount of ammonia water is added, and therefore the silver copper oxide composite powder with the hollow structure can be prepared; the cyclonecollecting device can be used for effectively grading powder bodies with different particle sizes; and the process design is scientific, the process is continuous, the equipment structure is reasonable, the raw materials are easy to get and low in price, the phase of the reaction product is controllable, the purity is high, the particle size is controllable, large-scale production can be realized,and the application prospect is wide.

The invention discloses a method for preparing photocatalytic adsorption material from high-titanium blast furnace slag. The method includes: grinding high-titanium blast furnace slag, dissolving intoacid solution, sealing, ultrasonically oscillating, heating in water bath, cooling to the room temperature, centrifuging, washing, re-centrifuging, collecting supernatant, adopting alkaline solutionfor adjusting pH of the supernatant, sealing, heating in water bath, cooling to the room temperature, centrifuging, washing, centrifuging to obtain a precipitate, and cooling and drying the precipitate to obtain the photocatalytic adsorption material. The preparation process is simple, low in cost and low in energy consumption; a great quantity of high-titanium blast furnace slag discharged in blast furnace smelting can be consumed, recycling of titanium-containing solid waste of steel enterprises is greatly promoted, high-titanium blast furnace slag storage space and cost are saved, and greatpractical significance and market competitiveness are achieved. The photocatalytic adsorption material is an aluminum-magnesium hydrotalcite loaded TiO2 material and integrates a TiO2 photocatalyticfunction and a negative ion adsorption function of aluminum-magnesium hydrotalcite.

The invention discloses an electrochromic film for effectively modulating the sunlight transmission rate. The electrochromic film is a CsxWO3 nanometer dot matrix containing embedded amorphous tungsten oxide composite film, wherein the x is 0.06 to 0.2; the lattice dot diameter is 80 to 300nm; the space between the adjacent lattice dots is 200 to 600nm; the lattice dot height is 30 to 80nm. The film solves the problems that the commercial electrochromic film has the narrow adjustable and controllable waveband range on sun light, and the near infrared radiation thermal independent regulation and control cannot be realized. A preparation method is characterized in that firstly, laser interference is used for being combined with a light sensing sol-gel method to prepare the CsxWO3 nanometer dot matrix; then, a sol-gel method is used for filling the amorphous tungsten oxide substrates in dot matrix gaps so as to form a composite film. The preparation method has the characteristics that theprocess is controllable; the large-area film preparation can be realized. The method is very suitable for industrialized mass production.

The invention discloses a modification preparation method of high-thermal-conductivity mica paper. The modification preparation method comprises the steps: treating a mica raw material into coarse slurry and fine slurry; then, taking a mixture of nano BN and nano-scale silicon compound powder as a filler, adding a mixture aqueous solution of cationic starch, ethylenediamine tetraacetic acid and pentabromophenol to prepare a filler solution; mixing the filler solution with para-aramid chopped fibers modified by a silane coupling agent, carrying out ultrasonic dispersion, carrying out papermaking molding between a coarse slurry layer and a fine slurry layer of mica paper, and carrying out dehydration and drying to obtain the high-thermal-conductivity mica paper. The high-thermal-conductivitymica paper has excellent mechanical strength, dielectric breakdown strength and high thermal conductivity stability when applied to power equipment such as large and medium-sized high-voltage generators and motors.

The invention discloses an Internet, Beidou and big data based taxi taking system. The characteristics lie in that the system comprises a command center system, a public handheld App terminal and a driver handheld App terminal, wherein the command center system comprises a control computer, a database and a Beidou navigation system; the control computer is connected and communicated with the database; and data communication can be realized among the control computer, the Beidou navigation system, the public handheld App terminal and the driver handheld App terminal. According to the invention, mutual corresponding of demand and supply can be realized, so that problems of long-time taxi waiting of a user, automobile emission and driver blindness are solved; a driver is traced in real time based on the Beidou navigation system, and the driver having such phenomena as fatigue driving and order grabbing in passenger carrying cannot continue to use any services provided by the system, so that potential safety hazards are eliminated to a certain extent.

The invention discloses an automatic alarm device of load for a CNC motion shaft and a method thereof, and relates to an alarm device and a method. The device comprises a collector, a computer, an alarm and the like; the input end of the collector is connected to each motion shaft of a CNC machining center, and the output end of the collector is connected to the computer through a PLC programmablecontroller; and the computer is connected to the alarm and the CNC machining center respectively. The method comprises the steps of: collecting the load data of each motion shaft of the CNC machiningcenter, and transmitting the data to the computer after calculated; the computer comparing the load data with a set load, if overloaded, stopping the machining equipment of the CNC machining center in time, meanwhile outputting an alarm signal to an alarm corresponding to the motion shaft, and performing storage and output on overloading data information; and the alarm giving out a sound-light alarm. According to the automatic alarm device of load for the CNC motion shaft and the method thereof, automatic alarm of the load of the CNC motion shaft can be realized, the damage probability of thedevice is reduced to the lowest, the good running is realized, and running life of the device is maximized.

The invention discloses sargentodoxae caulis proantho cyanidins and a preparation method thereof. The sargentodoxae caulis proantho cyanidins is obtained by performing crushing, extraction and Sephadex LH-20 purification on stems and vines of sargentodoxacuneata, and a plant of lardizabalaceae; the sargentodoxae caulis proantho cyanidins prepared by the method disclosed by the invention has the advantages that the raw materials are easy to obtain, the preparation method is simple and can achieve large-scale preparation, and the prepared proantho cyanidins is high in purity; the invention fills up a blank in the sargentodoxae caulis proantho cyanidins and the preparation method thereof, and has a great practical significance and a great promotion value.

The invention provides a traditional Chinese medicine preparation for preventing and treating excessive phlegm-dampness type hypertension and a preparation method of the traditional Chinese medicine preparation. The traditional Chinese medicine preparation is composed of active components of decoction with rhizoma pinelliae, rhizoma atractylodis macrocephalae and rhizoma gastrodiae as follows: 0-25.9 parts of total polysaccharides, 0-18 parts of total saponins and 0-14.5 parts of total polyphenols. The invention further provides the preparation method of the traditional Chinese medicine preparation, establishes an efficient extraction and refining method suitable for mass production under the premise of ensuring sufficient extraction of the medicinal active components, purifies and refinesthe total polyphenols, the total saponins and the total polysaccharides of six traditional Chinese medicines in the decoction with rhizoma pinelliae, rhizoma atractylodis macrocephalae and rhizoma gastrodiae, and develops an innovative traditional Chinese medicine for preventing and treating excessive phlegm-dampness type hypertension, wherein the novel traditional Chinese medicine has an independent intellectual property right, pharmacodynamic substances and a relatively clear action mechanism.

The invention discloses high-performance concrete and a preparation method thereof. The high-performance concrete comprises the following raw materials in parts by weight: 100 to 110 parts of machine-made sand, 130 to 140 parts of macadam, 30 to 45 parts of sea sand, 30 to 45 parts of seawater, 25 to 35 parts of Portland cement, 30 to 32 parts of silica fume, 25 to 30 parts of polypropylene fibers, 20 to 28 parts of steel slag powder, 20 to 25 parts of a shrinkage compensation agent, 20 to 22 parts of polystyrene foam particles, 16 to 20 parts of silica sand particles, 15 to 20 parts of steelfibers, 15 to 18 parts of desulfurized gypsum, 15 to 18 parts of red mud particles, 15 to 18 parts of mineral slag powder, 12 to 16 parts of fly ash, 10 to 15 parts of nano dolomite particles, 10 to 15 parts of phosphorus slag powder, 8 to 10 parts of aluminate cement, 8 to 10 parts of reef powder, 8 to 10 parts of ceramic particles, 8 to 10 parts of sodium alginate, 5 to 8 parts of calcium formate, 5 to 7 parts of calcium nitrite, 4 to 5 parts of pyridine-3-formic acid, 2 to 5 parts of a polycarboxylate water-reducer, 2 to 3 parts of white carbon black, 1 to 1.5 parts of sodium silicate, 0.8to 1.2 parts of caustic soda, 1 to 2 parts of crystalline wax, 1 to 1.5 parts of polyvinyl alcohol, 0.5 to 1 part of diethylene glycol monobutyl ether, 0.3 to 0.7 part of a defoaming agent and 0.2 to0.5 part of azodicarbonamide. The high-performance concrete disclosed by the invention is high in stability, good in durability, excellent in segregation resistance and filling property and stable inconcrete quality. The manufacturing method is simple in process, low in energy consumption, low in investment cost and high in production efficiency.

The invention provides a preparation method of a high-strength light cellulose-based bionic protective material, and relates to a preparation method of a bionic protective material. The method comprises the following steps of: constructing a homogeneous cellulose molecular system by using a solvent [Bmim] Cl ionic liquid; obtaining a cellulose hydrogel base material through phase conversion, and introducing a PAAm macromolecular chain through an in-situ polymerization means; and realizing molecular configuration recombination through an ethanol solvent, so as to construct the cellulose-based functional protective material (Cel-PAAm) with high mechanical strength. Molecular dynamics simulation (MD) and density functional theory (DFT) analysis means are utilized to determine that the curling configuration of PAAm molecules is a key factor for endowing the Cel-PAAm material with strong mechanical properties. The method is a green and controllable preparation method of a cellulose-based reinforced material, and compared with other conventional preparation methods, the Cel-PAAm functional protective material has better mechanical properties and biocompatibility and has a relatively great production and application prospect.

The invention discloses application of nano activated carbon sol in preparation of herpes virus therapeutics. The nano activated carbon sol is 1-100 nm in activated carbon particle size. The mass concentration of nano activated carbon in the nano carbon sol is less than or equal to 10%., and the surface of the nano activated carbon is modified with carboxyl groups. The application of the nano activated carbon sol in the preparation of therapeutics for treating skin diseases due to herpes virus provides significant effect, short process, high acting speed and zero recurrence after healing, great advance is made in medical science, and great clinical application value and practical significance are provided.

The invention discloses an automobile windshield light shielding and entertainment multifunctional composite glass structure and a manufacturing method thereof. The automobile windshield light shielding and entertainment multifunctional composite glass structure comprises a glass matrix, an indium tin oxide conductive layer, an ink screen structure, a conductive heat conducting layer, an indium tin oxide conductive layer and a glass matrix arranged in sequence; side surface electrostatic plates are arranged on the two sides, corresponding to an automobile A pillar, of the composite glass structure; the indium tin oxide conductive layers and the side surface electrostatic plates all communicate with a direct current circuit system through electrostatic plate flat cables; electrostatic plateflat cable circuits externally connected to the indium tin oxide conductive layers form parallel relations with electrostatic plate flat cable circuits externally connected to the side surface electrostatic plates; a microcapsule with mass density of 10% iscontained in the ink screen structure; and black granules with positive charges and white granules with negative charges are contained in themicrocapsule. The automobile windshield light shielding and entertainment multifunctional composite glass structure has the advantages of having the autonomously adjusted light shielding function, andthe simple entertainment function, not changing an automobile body, and having wide purposes, high cost performance and long service life.

The invention discloses a bracelet-type mechanical lock, which comprises a lock body shell, a lock barrel is installed inside the lock body shell, a lock bolt is installed inside the lock barrel, and a key hole is arranged inside the lock bolt. A metal rod is installed above the gear rod, a spring is installed above the metal rod, a fixed card is installed on the lock bolt, a retractable bracelet ring is installed on the lock body shell, and the retractable bracelet ring A fixed head is installed at one end of the fixed head, and a fixed hole is arranged on the fixed head. The present invention is designed as a bracelet, and the bracelet is designed as a retractable bracelet ring, through which the size of the ring diameter of the bracelet ring can be changed, so that it can be used as jewelry, the woman wears the bracelet, and the man carries the key, which can be used as a bond between men and women in love. It is used as a condition, and the mechanical lock can be used as a door lock, which greatly increases the practical function and practical significance of the device.

The embodiment of the invention discloses an identity card number desensitization method and device, equipment and a storage medium. The method comprises the following steps: acquiring a to-be-desensitized identity card number and a current timestamp; each digit in the to-be-desensitized identity card number is used to carry out remainder taking on a corresponding digit in the current timestamp to obtain a remainder taking identity card number; determining a to-be-desensitized region code, a to-be-desensitized birthday code and a sequence code in the remaining identity card number according to the digital code meaning in the identity card number, desensitizing the to-be-desensitized region code to obtain a desensitized region code, desensitizing the to-be-desensitized birthday code to obtain a desensitized birthday code, and desensitizing the to-be-desensitized birthday code to obtain a desensitized birthday code; determining a check code based on the desensitized region code, the desensitized birthday code and the sequence code; and sequentially splicing the desensitization region code, the desensitization birthday code, the sequence code and the check code to obtain a desensitization identity card number. According to the method, the identity card number is desensitized based on the timestamp, so that the identity card numbers with similar numbers before desensitization are still kept close after desensitization processing, the characteristics of number composition are kept, and the practical significance is increased.

The invention discloses a complex equipment forward design scheme optimization method considering multi-source uncertainty. Comprising the following steps: establishing three objective functions of a design scheme, then constructing a feasible complex equipment forward design scheme by using an original understanding method, and mapping the feasible complex equipment forward design scheme with the three objective functions to generate a complex equipment design scheme morphological matrix under multi-source uncertainty so as to establish an original model; then converting the three objective functions to obtain a deterministic model, and solving the model by using an improved multi-source uncertain non-dominated solution genetic algorithm to obtain an optimal design scheme set; and an intuitionistic fuzzy lambda-Shapley Choquet integration method is utilized to carry out optimization, and an optimal forward design scheme of the complex equipment is obtained. According to the method, the forward design scheme set of the complex equipment can be efficiently obtained, and the problem that in an existing design scheme optimization model, the influence of random, interval and fuzzy multi-source uncertainty is not considered at the same time, and consequently the designed scheme lacks rationality is solved.

The invention belongs to the technical field of biology, particularly discloses a miRNA marker related to skin repair and application of the miRNA marker, and develops a two-step detection reagent, a kit and a detection method for tissue miRNA based on a real-time quantitative PCR (polymerase chain reaction) technology. The miRNA provided by the invention comprises one or more of miR-7a-5p, miR-335-5p and miR-501-3p, and the miRNA comprises one or more of miR-7a-5p, miR-335- The kit contains a probe combination for detecting the miRNA, and the miRNA can be used as a marker for skin repair process research and skin modification related drug screening, and can also be used as a marker for detecting skin inflammation and cell apoptosis. The detection kit and the detection method provided by the invention have the advantages of small sample size, high automation degree and good specificity, can significantly improve the detection efficiency in combination with other detection indexes and clinical symptoms, and are convenient for batch screening and clinical detection use of skin trauma repair drugs.

The invention relates to stone products, in particular to a cubic weight made of natural stone. Use of various unqualified scales on the market is a common fraudulent conduct. Although related laws are already issued, administrative staff on the market can not carry instruments constantly to detect each commercial tenant. With the weight, previous problems can be solved. The weight is a small stone, and is shaped as a positive cube, a rectangular cube and a cube with an end of other shapes. The weight is characterized in that each stone face is engraved with obvious characters including the name of the weight and a standard weight. The weight has the advantages that a multi-use new stone product wide in raw materials is disclosed, the standard weight is accurately detected and engraved on the stone and has the features of long stability and difficulty in changing. Once the new product is on the market, a standard affirmation value is formed in general public, people only need to carry the small stone and place the small stone on a scale, and then can determine accuracy and error size of the scale, and accordingly the use of the unqualified scales can be eliminated, and fair trade is achieved.

The invention relates to a power transmission line with an alerting device. The power transmission line comprises a power transmission line body and the alerting device. The power transmission line ischaracterized in that the alerting device comprises a power module, an alerting module and a control module; the alerting module and the control module are both arranged on the power transmission line body and covers the whole power transmission line body; the power module is connected with the alerting module and the control module; the two ends of the power transmission line body are connectedto an electric pole; and a power circuit is arranged at the position, connected with one end of the power transmission line body, of the electric pole. When the power transmission line is broken off due to accidental force and the like, alerting lamps are turned on, an automatic alarming effect is achieved, and pedestrians are alerted to be away from the landing position of the power transmissionline.