405results about How to "Various ways to use" patented technology

The invention discloses a block chain multi-chain management method and device. The blockchain multi-chain management method is applied to a blockchain multi-chain system. The blockchain multi-chain system comprises a plurality of blockchain nodes, wherein a plurality of block chains are stored in each block chain node, and the plurality of block chains comprise a main chain and at least one sub-chain. The block chain multi-chain management method comprises the following steps: when a first sub-chain in a first sub-chain consensus node registers and joins in the plurality of block chains of the block chain multi-chain system, the main chain consensus node acquires a registration request sent by the first sub-chain consensus node; the main chain consensus node verifies the legality of the first sub-chain consensus node according to the registration request; and when it is verified that the first sub-chain consensus node is legal, the main chain consensus node manages the first sub-chainconsensus node through a preset multi-chain smart contract. According to the method and the device, the problem that the existing blockchain multi-chain management data is easy to make mistakes is avoided, the overall performance of a blockchain system is improved, and a feasible scheme is provided for future blockchain multi-chain management.

The invention discloses a detachable go-kart like a kid scooter. The detachable go-kart comprises the scooter, the scooter comprises a frame, front wheels are arranged at the front end of the frame and connected to the frame through deflection steering structures, a hand control rod capable of realizing front-and-back adjustment is further hinged to the front end of the frame, and when the hand control rod drives the frame to incline in the left-and-right direction, the front wheels can rotate in the left-and-right direction relative to the frame; a connecting frame is detachably arranged at the rear end of the frame, a seat is fixedly arranged at the upper end of the connecting frame, a balance car is detachably arranged at the lower end of the connecting frame and used for driving the scooter to drive, and a foot control switch connected with the balance car is detachably arranged at the front end of the frame and used for controlling driving of the balance car. By means of reasonable structural arrangement, the balance car and the scooter are assembled together through the connecting frame to form the go-kart which is controlled to advance, brake, turn and conduct other actionsthrough the hand control rod and the foot control switch, and therefore the detachable go-kart like the kid scooter has the advantages of being reasonable in structure and enriching the interestingness of product usage.

An embodiment of the invention provides a method and a device for interacting with a voice assistant application. The method comprises the steps of responding a voice instruction, and performing comparison for determining whether a voice identification text after voice instruction identification is consistent with a preset text or the voice instruction is consistent with a preset voice instruction; if yes, acquiring a playing content which corresponds with the preset text or the preset voice instruction, wherein at least one preset text or preset voice instruction exists, and a correspondence between the preset text or the preset voice instruction and the playing content is pre-established; and playing the playing content on a display screen. According to the method and the device, on the condition that the user transmits the voice instruction to the voice assistant application, the voice assistant application generates a friendly response to the user, thereby improving interest of the voice assistant application on a mobile terminal, realizing multiple use modes of the voice assistant application and improving user experience.

The invention provides a photovoltaic drive solar air collector which comprises a collector cavity and a collecting plate arranged in the collector cavity, wherein the collector cavity is also internally provided with a solar photovoltaic plate, an S-shaped air channel, a wind guide plate and a partition plate; the wind guide plate divides the collector cavity into a front cavity and a back cavity, the partition plate is arranged in the back cavity and divides the back cavity into a back upper cavity and a back lower cavity, the solar photovoltaic plate and the collecting plate are connected together and the solar photovoltaic plate is arranged above the collecting plate, meanwhile, the solar photovoltaic plate and the collecting plate are arranged in the front cavity and divide the front cavity into a sunny cavity and a shaded cavity, and the S-shaped air channel is arranged in the shaded cavity. The collector has the advantages of complete heat exchange, good heat exchange effect, high heat utilization, low use cost and high economy.

The invention discloses an express receiving and sending system and method, and aims to solve the technical problem of unreasonable distribution of unmanned distribution resources in the prior art. The express receiving and sending system comprises an unmanned express station, a background server and at least one distribution robot, wherein the distribution robot carries out automatic distributionbetween the unmanned express station and a user. The invention also designs a method for sending the express, and the distribution robot automatically navigates to the doorway of the user according to the user order, obtains the express to be sent and then automatically returns to the unmanned express station. The invention further designs a method for receiving the express delivery. The deliveryrobot transports the express delivery from the delivery station to the doorway of the user at the appointment time. The system has the beneficial effects of being high in working efficiency and convenient to use.

The invention discloses a microbial agent of Bacillus velezensis, belonging to the field of development and application of microorganisms. The Bacillus velezensis is Bacillus velezensis 1721, which has been preserved in China General Microbiological Culture Collection Cente on January 29, 2018, with an accession number of CGMCC No. 15324. The Bacillus velezensis 1721 provided by the invention maybe made into a wettable powder, a suspending agent, a water dispersible granule or a granule, and has high antibacterial activity in each dosage form; when acting on peanuts, the microbial agent of Bacillus velezensis 1721 can effectively prevent and treat root rot of peanuts and helps to reduce the usage and residual amounts of chemicals in agricultural products; and the microbial agent has the advantages of safety in use, no residues and convenient use.

Disclosed is a smart watch, comprising a dial plate and a watch band detachably connected to the dial plate, wherein a host chip and a host battery electrically connected to the host chip are arrangedinside the dial plate; a flexible battery is arranged inside the watch band; and when the watch band is connected to the dial plate, the flexible battery is electrically connected to the host chip. The smart watch of the present application has good endurance. Further disclosed are an electric quantity management system of a smart watch and an electric quantity management method for a smart watch.

The invention relates to a special method for applying 98% of Longxin dazomet microgranule, belonging to the technical field of disease and insect pest prevention and treatment. The method comprises the following steps of: ploughing 2-4 times when the relative water content of soil is 70%-75%, spreading the 98% of Longxin dazomet microgranule over the ploughed land parcel to be applied with the application amount of 30-40kg/666.7 square meters, harrowing to the depth of 30cm, and then covering and sealing for 30-40 days by using a thin film at the average temperature of 0-20 DEG C; and turning up the soil and opening to the air for 7-10 days, and then planting crops with the conventional method. On the premise of ensuring the effects of prevention and treatment, the invention greatly reduces the application amount of the 98% of Longxin dazomet microgranule, thereby lowering the drug cost on each unit area, reducing the drug damage to the soil and atmosphere and lowering the environmental cost.

The invention relates to the technical field of methane sensing accessory devices and particularly relates to a laser methane sensor for mining. The body height can be adjusted according to environmental needs, thereby improving the adaptability of the sensor; multiple whole use modes are provided, thereby reducing the use limitation of the sensor; and when the methane concentration exceeds the standard, underground managers can be conveniently reminded, thereby improving the use reliability of the sensor. The sensor provided by the invention comprises a body, a top plate, four groups of brackets and a bottom plate, wherein both the left side wall and the right side wall of the body are provided with probes, and the front side wall of the body is provided with a display screen; the four groups of brackets respectively comprise inserting columns and inserting pipes; a quickly-dismounting pipe clamp comprises a quickly-dismounting handle, a quickly-dismounting rod, a handle seat and a quickly-dismounting hoop; a group of iron sheets are arranged at the bottom end of the body; a group of magnet sheets are arranged at the top end of the top plate; the sensor also comprises a carrying rod and a massage cushion, and hook & loop fastenersmagic tapes are arranged at the top end and the bottom end of the massage cushion; and the sensor also comprises an alarm indicator lamp, an alarm speaker, a main control module, a first sensing module and a second sensing module.

Provided is a method for reducing the cadmium content in tobacco leaves. The method comprises the specific steps that (1) nanometer material zinc oxide is used for replacing ZnSO4.7H2O in original Kafer culture media, and 10 mg of nanometer material zinc oxide is added into 1 liter of culture media; (2) activated Piriformospora indica is inoculated to the liquid Kafer culture media in the step (1) for culture, then mycelia are collected, Piriformospora indica mycelium liquid is made and poured to roots of tobacco seedlings, and root-irrigation is conducted so that the Piriformospora indica can be colonized to the roots of the tobacco seedlings; (3) the tobacco seedlings are transplanted after the Piriformospora indica is colonized, and conventional water and fertilizer management are conducted so that the tobacco seedlings can grow normally. The growth status of the tobacco seedlings can be improved in the method, the amount of cadmium moving to overground parts of the tobacco seedlings from root systems is reduced, heavy metal residue on the tobacco leaves is reduced, and the method is easy to master, low in cost, simple, practical and environmentally friendly, and can not case secondary pollution.

The invention provides durable biomass polyphenol water-based flame retardant paint and a preparation method and applications thereof. The water-based flame retardant paint is mainly composed of biomass polyphenol or a combination of the biomass polyphenol and a salt through a coordination bond or/and adsorption. The preparation method is to mix the biomass polyphenol with a certain amount of water or add a binder on the basis, or to mix the biomass polyphenol with a certain amount of water and drop a salt solution or add a binder on the basis. The preparation method of the biomass polyphenolwater-based flame retardant paint is low in energy consumption, environmentally friendly and safe. The prepared biomass polyphenol water-based flame retardant paint has the advantages of durability, high flame retardant efficiency, strong adhesion, environmental protection and safety, can be directly used as water-based flame retardant paint, and can also be used as surface treatment and additiveflame retardant agents for different polymer materials.

The invention relates to an MXene-based water-based nano electric heating composite coating and a preparation method thereof, and the MXene-based water-based nano electric heating composite coating is prepared by the following steps: by using a water-dispersible MXene nanosheet as a conductive filler, respectively using water-based polyurethane, water-based polyacrylate or water-based epoxy resin and MXene to prepare water dispersion liquids with certain mass fractions, adding the MXene dispersion liquid into the water-based resin according to a preset mass ratio of the water-based resin to the MXene under the stirring action, and continuously conducting stirring to enable water-based resin macromolecules to be fully and uniformly adsorbed on MXene nanosheets, so as to obtain the water-based resin ester-MXene nano electric heating composite coating. The prepared coating can be constructed through spraying, dip-coating, roller coating or dispensing and other methods, has excellent electric heating performance and heating regulation performance, is high in adhesive force and good in flexibility, has the resistivity capable of being regulated as required, is low in required voltage and high in temperature rise rate, is not limited by the surface appearance of a base material in use, and is wide in application range.

The invention discloses a dual-terminal intelligent control tea stove. The dual-terminal intelligent control tea stove includes a base, a tea kettle and a water supply device; the tea kettle is arranged on the base through a heating device in a matching manner; a touch control panel is arranged on the base; a control circuit board is arranged in the base; the control circuit board is electrically connected to the heating device and the water supply device; the base includes a control module; the control module is electrically connected to a man-machine interaction module and a wireless signal receiving and transmitting module; the control circuit board is electrically connected to an output control module; and the touch control panel is electrically connected to the man-machine interaction module. The dual-terminal intelligent control tea stove can be controlled and operated by the touch control panel, can be controlled and operated by an intelligent terminal, is various in use manners, and can meet various demands and use habit.

The invention relates to the technical field of horizontal mixer production and particularly relates to a split deep groove ball bearing which comprises an inner ring, an outer ring and a ball, wherein at least one ball slide is arranged between the inner ring and the outer ring; the inner ring consists of two axially split inner half rings; the two inner half rings are connected through a first positioning pin and a first connecting bolt; the outer ring consists of two axially split outer half rings; and the two outer half rings are connected through a second positioning pin and a second connecting bolt. In the split deep groove ball bearing disclosed by the invention, with multiple rows of ball slides and the split inner ring and outer ring, the mounting and maintenance of the deep groove ball bearing are more convenient, and the bearing capacity is better; due to positioning pin holes and connecting bolt holes, more diverse using ways of the split deep groove ball bearing can be realized, relative rotation as well as combined rotation of plates is realized, for example, the inner ring on the shaft, the outer ring on the plate, the outer ring in the hole and the inner ring on the plate.

The invention relates to an electronic plug and an electronic key. The electronic plug comprises a plug body and a plug component, wherein the plug component comprises an electronic cylinder, a printed circuit board (PCB), a spring seat and a slider set; the slider set is connected with the spring seat by a spring; a heat shrink metal wire and a positive lead are arranged between the PCB and the slider set; the PCB comprises a first micro processing unit, a first data interaction module and an electronic switch; and one end of the electronic switch is connected with the positive lead at a connection point on the slider set by a return wire, while the other end is grounded. The electronic key comprises a key body and a power supply and a second micro processing unit which are arranged in the key body, wherein an identification head is arranged at one end of the key body; and a memory and a second data interaction module are connected with the second micro processing unit. According to the invention, the long-term electrification of the electronic plug is avoided, and the maintenance cost of an electronic lock is reduced; and meanwhile, the electronic key is changeable in coding and high in flexibility and can be provided with different permission and validity.

The invention discloses a clamshell handset and control method thereof wherein the clamshell handset includes a first main body and a second main body in rotary connection with the first main body. The inner side of the first main body is provided with a first touch control display screen. The outer side of the first main body is provided with a camera; the inner side of the second main body is provided with a second touch control display screen. When the clamshell handset is closed, the first touch control display screen and the second touch control display screen are opposite to each other. The clamshell handset and the control method thereof enable a user to check and operate conveniently; and the display of the clamshell handset is more diverse so that the user could have better use experience.

The invention relates to a tool used in the field, in particular to a multi-combined field mountain climbing walking stick. The multi-combined field mountain climbing walking stick comprises a shoulder oxter bracket mechanism, a connecting rod body frame, a step support rod mechanism, a handle mechanism, a cutter tool mechanism, a buffer ascending assisting mechanism and a bottom frame mechanism. The use modes of the walking stick are various; the walking stick is used according to practical requirements; the walking stick has the ascending assisting function; the labor is saved during the use by a user; the ascending assisting strength is adjustable; and in the use process of the walking stick, the safety performance is good, and the stability is high. One end of the connecting rod body frame is connected with the shoulder oxter bracket mechanism; the other end of the connecting rod body frame is connected with the step support rod mechanism; a first round threaded rod arranged on the step support rod mechanism is connected with a third threaded blind hole formed in the cutter tool mechanism through screw threads; straight rods are connected with a second threaded blind hole through screw threads; the bottom frame mechanism is connected with a case through screw threads; a second threaded straight rod arranged on the bottom frame mechanism is connected with a fifth threaded blind hole through screw threads; and the handle mechanism is arranged on the connecting rod body frame.