95results about How to "Suitable for work" patented technology

The invention discloses a head-worn optoelectronic automatic focusing visual aid. The visual aid comprises a micro optical wide-angle zoom lens, an image sensor, an electronic module of an electronic full-time automatic focusing image processing system, a micro display module, a head-worn balance weight mechanism, a digital controller and the like. Automatically acquired continuous video images or E-book data are displayed in a specific mode through a micro display; a balance weight structure adopted by the device can effectively transfer the weight of the visual aid in front of eyes to two side parts of the head so as to avoid pressure caused by the visual aid on the forehead and the nose bridge; meanwhile, the automatic full-time electronic focusing micro optical zoom wide-angle pick-up lens and the micro display module are integrated on a head-worn structure so as to meet human engineering characteristics and biological vision habits, assist in long sight and assist in short sight; and the current E-book reading tool is embedded into the visual aid so that a person not only can see the scene before the eyes, but also can read E-journal by using the visual aid and the like.

The invention discloses an integrative rotatable type adsorber. The adsorber comprises a circular inner cylinder and a circular outer cylinder which have the same mandrel, wherein the middle of the inner cylinder is provided with a baffle plate. The structure of the integrative rotatable type adsorber is equivalent to that of a double-tank adsorber; the center of a top cover (29) of the inner cylinder is provided with a rotating shaft (32), and the rotating shaft (32) is connected with driving equipment by an outlet (3) of the rotating shaft on a top cover (7) of the outer cylinder; the inner side of a bottom cover (25) of the outer cylinder is provided with an annular roller groove (21) which has the same mandrel with the outer cylinder, and an outer layer of the bottom cover of the inner cylinder is provided with a roller (20) matched with the roller groove (21); and a cylinder body (9) of the outer cylinder is provided with a magnetron (27). The adsorption and the recovery of oil gas are realized by the rotatable type adsorber through utilizing the processes of microwave heating and low-vacuum integrated desorption. According to the adsorber, the integration of adsorption and desorption is realized, the structure is simple, and the miniaturization of equipment is realized.

The invention relates to a dynamic local reconfigurable system for real-time fault tolerance of hardware. The existing chip redundant resources are not fully utilized, and the hardware resources have low utilization ratio and large power consumption. The dynamic local reconfigurable system comprises a hardware global static area and two hardware dynamic local reconfigurable areas, wherein the hardware global static area comprises a processor system, a clock management module, a decision maker of a real-time error-detecting tracking hardware reconfigurable module, a display control module and a display module; and each hardware dynamic local reconfigurable area is a local reconfigurable module with the same function. The dynamic local reconfigurable system realizes the real-time fault tolerance of the hardware in the reconfigurable area and has the effects of real-timeness, easy upgrading of the product, suitable working under severe environment and prolonged life cycle of the system.

The invention provides an intelligent box-type substation characterized by effective heat dissipation. The intelligent box-type substation comprises a base, an exhaust device, a frame body, cooling devices, a cover plate device and a monitoring device. First support pillars and a second support pillar are arranged on the base. The frame body is provided with a first through hole, second through holes, third through holes and fourth through holes. The exhaust device comprises an exhaust pipe, a fan, a sponge block, a fixing block and fasteners. Each cooling device comprises a first support plate, a first water tank, a first water output pipe, a first valve, a circulating pipe, a fixing rod, a second water outlet pipe, a second water tank and a second support plate. The cover plate device comprises a cover plate, a bending part, support rods, a cross rod, a control box, an antenna and horizontal rods. The monitoring device comprises a third support plate, a baffle plate, a humidity sensor, a temperature sensor, a noise sensor and a rectangular block. The internal environment parameters of the substation can be monitored in real time and judgment can be made according to the specific parameter information, so that the internal environment parameters of the substation can be made to be more suitable for work of electric devices in the substation.

The invention discloses an oil gas adsorber which comprises an adsorber top cover (16), an adsorber main body (1) and an adsorber bottom cover (3) that are connected through bolts (14), wherein the adsorber top cover (16) is provided with an emptying hole (17), and the adsorber main body (1) comprises a composite adsorbing material (11) and a circulating water jacket (12); the circulating water jacket (12) is provided with a circulating water jacket water inlet (8) and a circulating water jacket water outlet (13); the adsorber bottom cover (3) is provided with an oil gas inlet (2), a drain outlet (4), a vacuum pump port (5), a pressure sensor (6) and a pressure meter (7); and the composite adsorbing material (11) is a mixture of foam metal and an adsorbing agent. In the invention, heat radiation is enhanced through the foam metal, the circulating cooling / heating water jackets is additionally arranged outside the oil gas adsorber to enhance heat transfer, thus the temperature rise problem in the adsorber and the temperature drop problem in a desorber can be effectively solved.

The invention provides a compressor frequency control method and device, an air conditioner and a storage medium, and relates to the technical field of compressor control. According to the method, theoperating mode of the air conditioner, the current outdoor environment temperature, the current indoor environment temperature and the current wind gear are acquired, and the maximum operating frequency of a compressor is determined based on the operating mode, the current outdoor environment temperature and the current indoor environment temperature. Due to the fact that the maximum operating frequency of the compressor is reasonably determined through the outdoor environment temperature, the indoor environment temperature and the operating mode of the air conditioner, the maximum operatingfrequency of the compressor can be more suitable for the current operating environment, the compressor can be guaranteed to work normally in an extreme operating condition (ultra-temperature or ultralow temperature), the compressor has the more suitable operating frequency at the normal environment temperature, the air conditioner is more energy-saving and lower in noise, and meanwhile, the excessively high operating frequency of the compressor is avoided, so that the service life of the compressor is prolonged and the reliability of an air conditioning system is guaranteed.

The invention discloses a method for efficiently transmitting pulse data packets in a brain-like computer, which is based on a brain-like computer system, adopts a cluster to multicast the pulse datapackets, and performs data transmission in a connection mode taking a cluster as a unit. The brain-like computer system is designed to simulate real-time response of neurons in the brain, a multi-coresystem platform is used for simulating the mapping relation of the neurons in the spiking neural network, and the method can better adapt to the actual working conditions of the brain neurons. Besides, basic information and occupied bit size, including control bit information, stored in each part of the adopted cluster multicast pulse data packet are all set for nodes of the brain-like computer system. And finally, a set of coding scheme is completely provided, and how to realize coding based on the cluster multicast pulse data packet not only realizes flexible and variable pulse data packetcoding, but also reduces the number of routing entries in the routing table.

The invention relates to a die repairing device, which comprises a lower worktable component and a rotary worktable and is characterized in that: the device also comprises a control system which is used for realizing automatic operation of the die repairing device; the lower worktable component also comprises an eccentric wheel component which is used for locking a die when the die fluctuates; the lower worktable component comprises a worktable, a main bracket component, a screw rod component, a support component, a hydraulic lifting guide rail, a hand wheel component, a motor, a speed reducer, a coupler and a clutch; and the rotary worktable comprises an upper slide block, a right shaft and a left shaft. The die repairing device has novel structure, high automation degree and convenient operation, reduces security risk in a die repairing process and improves working efficiency. At the same time, because electric control and manual control are combined in the die repairing device, the die repairing device meets the requirement of limit self-locking and has high reliability and is very suitable for repairing, installing and debugging a large die.

The invention relates to a self-adaptive adjusting reactive output distributed photovoltaic power generation control method. The method comprises the following steps: accessing photovoltaic power into a distribution network system in an area, wherein the photovoltaic power participates in absorbing or sending reactive power; calculating the output power value of the photovoltaic power according to the sunlight intensity, temperature and local load data, and solving the upper limit value of the reactive power output by the photovoltaic power; optimizing reactive power control in the distribution network system through setting the initial value and an objective function by use of the particle swarm algorithm. The self-adaptive adjusting reactive output distributed photovoltaic power generation control method optimizes the reactive power output by the photovoltaic power through the particle swarm algorithm, thereby effectively solving the problem of poor power quality.

The invention discloses a distributed temperature sensing optical cable, comprising a fiber; a tight tube wraps the fiber, a flexible metallic tube wraps the tight tube, an aramid fiber reinforcing layer wraps the flexible metallic tube, wire sheathing wraps the aramid fiber reinforcing layer and a low-smoke halogen free flame retardant sheath wraps the wire sheathing. The optical cable can be applied to a distributed temperature monitoring system, which can be used as a temperature sensor and a channel for data information transmission.

The invention provides a novel process for processing instant food and a method thereof, relating to technology of flour products, starch products and rice products, such as instant cold noodles, instant sheet jelly and gluten, instant cold jelly, instant noodles, instant mungbean noodles, instant rice noodles and the like. Various instant foods processed according to the method of cooking, forced cooling, oil impregnating (oil frying or oil spraying) and evenly stirring, cooling, quantitative packaging and sterilizing treatment can be eaten for a long time within the shelf life; in particular, the emergence of the instant cold noodles, the instant sheet jelly and gluten and the instant cold jelly increases the variety of the instant foods. The instant foods processed by the method overcome the defects of deep-fry and dry package of the traditional instant foods, taste of original foods and higher manufacture cost, and not only maintain the taste basically the same as foods which are freshly made, but also can be eaten more conveniently and rapidly with and without boiling water; and the food is particularly suitable for being eaten when people travel, adventure and construct outdoors. The method can be an innovation on the traditional instant food processing method.

The invention discloses universal primers and a probe for on-site rapid detection of Brucella and a kit. The forward primer sequence is shown as SEQIDNo.1, the reverse primer sequence is shown as SEQIDNo.2, and the probe sequence is shown as SEQIDNo.3. The universal primers, the probe and the kit provided by the invention for detection of Brucella have high sensitivity and strong specificity, minimumly can detect 6.0*10<0>cfu Brucella, and have no cross reaction with Escherichia coli O157:H7, yersinia enterocolitica O:9, Salmonella, Staphylococcus aureus and other bacteria. The universal primers, the probe and the kit provided by the invention not only can be used for detection of Brucella strains, but also can be used for detection of clinical samples, which mainly include blood, milk samples, aerosol samples, and tissue samples, etc. The kit provided by the invention is convenient to use, has no need for special equipment, can carry out sensitive, specific and rapid detection of Brucella on the crude split product of a to-be-detected sample in 25min just at 38DEG C, and is suitable for field or grassroots brucellosis quarantine work.

The invention discloses a double-valve-element electronic thermostat based on a vehicle type carrying a hydrodynamic retarder. The double-valve-element electronic thermostat comprises a base and an upper cover plate. The base and the upper cover late are used in cooperation, and an inner cavity is formed between the base and the upper cover plate. A water inlet and a small circulation water outlet are formed in the base, and a large circulation water outlet is formed in the upper cover plate. A transition plate is arranged between the base and the upper cover plate. A large circulation outlet of a first thermostat core and a large circulation outlet of a second thermostat core are formed in the transition plate. One ends of two electronic heaters are fixed to the upper cover plate and led out of the upper cover plate through electric connectors, and the other ends of the two electronic heaters manner the large circulation outlet of the first thermostat core and the large circulation outlet of the second thermostat core respectively and are provided with the first thermostat core and the second thermostat core respectively. A small circulation outlet of the first thermostat core and a small circulation outlet of the second thermostat core are formed in the corresponding positions in the base and communicated with the small circulation water outlet.

The invention relates to a high-performance knapsack spraying machine, which comprises a pesticide liquid box body, a water filling opening is made on the box body, a water filling cover is arranged on the water filling opening, a pump and a power diving the pump are arranged at the lower part of the box body, a spray gun component is connected with a water outlet opening of the pump, and the pesticide liquid is sprayed through a spray head. The knapsack spraying machine is characterized in that an open supporting frame is arranged at the lower part of the box part, the supporting frame is connected with a bottom seat, an assembly machine frame is composed of the supporting frame and the bottom seat, the power is a gasoline engine, the bottom feet of the gasoline engine are fixed on the bottom seat, an oil tank is arranged on the wall surface of the box body, the oil tank is provided with a zerk, and the pump is driven by the gasoline engine. Compared with the prior art, the proposal has the characteristics that firstly the gasoline engine continuously works; secondly, the power of the gasoline engine is large, and the working pressure is high; thirdly, the operation is convenient, without the inflation; fourthly, the service life is long; fifthly, the open supporting frame is favorable for installation and working, and the assembly and disassembly and the maintenance are also convenient; sixthly, the pesticide liquid box body, the pump, and an engine are connected into an integrated style, the volume is small, and the moving is flexible; seventhly, the application range is wide.

The invention provides an engine cooling system and a control method thereof. The system comprises an engine, a control module, an electronic water pump, an electronic thermostat, a temperature sensorand a heat dissipation device; the temperature sensor is arranged on the engine and electrically connected with the control module; the temperature sensor is used for measuring the current temperature of the engine and transmitting the current temperature to the control module; the control module is electrically connected with the electronic water pump and the electronic thermostat and used for controlling starting and stopping of the electronic water pump and the opening degree of the electronic thermostat according to the current temperature and first target preset temperature stored in thecontrol module to enable the current temperature to reach the first target preset temperature; and the electronic thermostat is used for controlling the flow of heat dissipation fluid in a first water way. According to the engine cooling system, control over the cooling system can be accurately achieved through few electronic components, and the engine always works at the proper temperature.

The invention provides a gearbox cooling system and a cooling method thereof and a vehicle, and relates to the technical field of vehicle equipment. The gearbox cooling system comprises a gearbox body, a first thermostat, a second thermostat, an air-cooled oil cooler and a water-cooled oil cooler. Engine oil flowing of the gearbox body and the air-cooled oil cooler is controlled through the firstthermostat. When a gearbox is started and warmed up, engine oil in the gearbox body is not cooled, and the warming-up speed of engine coolant is increased. In addition, when the air-cooled oil coolercannot meet the cooling requirements, engine oil flowing of a gearbox oil inlet pipe and the water-cooled oil cooler is controlled through the second thermostat, so that the cooling efficiency of theengine oil is improved through the added water-cooled oil cooler. The technical problems that cooling efficiency is low, and vehicles are high in oil consumption when started again after not working for a long time in the prior art are alleviated. The temperature of the coolant is controlled more precisely, and an engine and the gearbox can work in a proper temperature range under various workingconditions.

Disclosed is a urea metering and conveying device of a tail gas clean-up post-treatment system of an internal-combustion engine. The urea metering and conveying device comprises a urea metering device (1000), a spray nozzle (607) and a urea storage tank (700), wherein urea is contained in the urea storage tank (700); and the urea metering device (1000) comprises a metering pump (200) and a controller (600), wherein the metering pump (200) is installed inside the urea storage tank (700) and is immersed in the urea, the metering pump (200) is connected to the controller (600) and is connected to the spray nozzle (607) through an injection pipe (402), and the controller (600) is installed on the top portion or the outer portion of the urea storage tank (700). The urea metering and conveying device can avoid the situation in which components coming into contact with urea are damaged because a urea solution is frozen in inclement weather, and can also avoid the situation in which the system cannot operate normally due to the dehydration and crystallization of urea.

The invention provides automatic combined wire welding equipment. The equipment comprises a main case, a left wire arranging jig and a right wire arranging jig, wherein a welding machine base is arranged at the front end of the main case; welding machine power supply electrodes are arranged on the front surface of the main case; the main case is connected with a welding structure through the welding machine power supply electrodes; the welding structure comprises a welding head with double rows of knives, an electrode radiator, a cooling fan, a stepping moving motor and a welding machine rail running mechanism; the stepping moving motor is arranged above the welding machine rail running mechanism; the welding head with double rows of knives is arranged at the front side of the welding machine rail running mechanism; the electrode radiator is arranged on the top of the welding head with double rows of knives; and the cooling fan is arranged on the top of the electrode radiator. The equipment provided by the invention has the following beneficial effects that joint size is short, so that the requirements for SR appearance and wire end fixing are met; the space between the wires is fixed and the wires are uncrossed, so that the high-frequency characteristic is stable and good; and the wire welding operation is standard and easy to learn.

The invention discloses a coal mine underground gas cyclic pumping and exhaust system which comprises an exhaust pipe, wherein the exhaust pipe is fixedly inserted and arranged in a soil and rock layer and extends into a mine; a gas inlet pipe is fixedly inserted and arranged in the exhaust pipe; and two exhaust branch pipes are symmetrically inserted and arranged at one end, positioned in the mine, of the exhaust pipe in a communicating way. Air circulation power is provided by an exhaust fan and a blast blower; both the exhaust fan and the blast blower are positioned on the ground outside the mine, so that the overhauling is convenient; when faults and the like occur, no influence can be generated in the mine; through the exhaust pipe, the exhaust branch pipes and gas inlet branch pipes,cyclic gas flow is formed in the mine; the gas exhaust speed is accelerated; through a gas inlet mechanism, a gas suction mechanism and air pipes, cyclic gas flow is formed in each region, so that the gas exhaust speed is further accelerated; the possibility of carbon monoxide poisoning of constructors is reduced through the gas inlet height of the gas inlet mechanism; impurities in gas are filtered through a dust filtering box; and the pipeline and exhaust fan blockage is avoided.

The invention discloses a fluid plastic thin-wall elastic sleeve clamp with magnetic isolation performance. The clamp comprises a clamp body provided with a non-standard flange, a steel ball, an exhaust bolt, magnetic isolation sleeves and a pressure device consisting of a screw bolt, a sliding column, a sliding column sleeve and a rubber sealing ring, wherein a thin-wall elastic sleeve penetrates in the clamp body; an exhaust port is subjected to contact seal by the steel ball and a taper hole line and pressed by the exhaust bolt; the pressure device is arranged in the non-standard flange; the clamp body is provided with a first cooling water channel, a second cooling water channel, a third cooling water channel, a fourth cooling water channel and a fifth cooling water channel; the clamp body is sleeved with the magnetic isolation sleeves; and liquid plastics are filled between the clamp body and the thin-wall elastic sleeve. The fluid plastic thin-wall elastic sleeve clamp with the magnetic isolation performance is high in centering accuracy and convenient to mount, and clamp force on a test piece during clamping is uniform; magnetism of the clamp can be prevented from disturbing an internal magnetic field of a tester, and a radiator is arranged, so that the clamp can operate in an appropriate temperature range; and the clamp can be applicable to various loading modes, can be applied to other equipment and is good in portability.

The invention discloses a decontaminating and fragrant-lasting pet shampoo and a production method thereof, and belongs to a pet shampoo. The pet shampoo is prepared from, by mass, 62 parts of deionized water, 0.01-0.5 part of ethylenediamine tetraacetic acid disodium, 0.1-5 parts of U20 carbomer, 0.1-5 parts of triethanolamine, 1-36 parts of sodium laureth sulfate, 1-46 parts of ammonium lauryl sulfate, 0.1-1 part of polyquaternium-10, 0.1-3 parts of amino siloxane microemulsion and the like; by compounding polyquaternium-10, cationic guar gum, vitamin E acetate, arginine and other effectivesubstances for decontaminating and fragrant lasting, the decontaminating and fragrant-lasting effects of the compound shampoo are further improved through matched contents, the shampoo is suitable fordog pets with strong body odor, and bloodstains, milk stains, juice and other common stains can be efficiently hydrolyzed by natural plant active protease contained in the shampoo.

The invention discloses a spray vaccination method for Blumeria graminis f.sp.tritici and belongs to the technical field of crop pathogenic bacterium vaccination. The spray vaccination method comprises the following steps: (1) expanding propagation of monospora strains; (2) collection of conidia; (3) conidial powder suspension by use of C5-18-perfluorinated alkyl (FluorinertTM FC-40), and preparation of an erysiphe spore suspension with 106 spores / ml; and (4) spray vaccination. Uniform spray vaccination of Blumeria graminis f.sp.tritici is guaranteed, accurate quantification is ensured, and such shortcomings as nonuniform vaccination, accurate quantification failure and the like of a shaking method are overcome to guarantee normal implementation of Blumeria graminis f.sp.tritici related study works. The spray vaccination method can be popularized in Blumeria graminis f.sp.tritici resistance identification and breeding units.

The invention discloses a high-safety module partition type energy storage system and a working method thereof, and belongs to the technical field of energy storage batteries. The energy storage system comprises a battery module, a temperature sensor, a battery module cooling system, a fire monitoring device, a fire extinguishing system, an isolation bin and a smoke exhaust system, wherein each battery module comprises a plurality of single batteries, and each battery module is independently arranged in the closed isolation bin; and the temperature sensor, the battery module cooling system, the fire monitoring device and the fire extinguishing system are arranged in the isolation bin, and the smoke exhaust system is connected with the isolation bin. According to the invention, it can be ensured that the battery module in the energy storage system works at a proper temperature, meanwhile, the fire-fighting emergency capability when the battery in the energy storage system has a local problem is greatly improved, the occurrence of a spreading accident caused by the local safety problem of the energy storage system is completely eradicated, and the application prospect is good.

The invention discloses an efficient light condensation power generating device based on solar gradient utilization. The device comprises a support. A primary reflector, an arc spectrum frequency divider, a photovoltaic module, a secondary reflector and a heat collector are installed on the support. The primary reflector is used for reflecting sunlight. The arc spectrum frequency divider is used for receiving sunlight reflected by the primary reflector and conducting transmission and reflection. The photovoltaic module is used for receiving sunlight transmitted by the arc spectrum frequency divider for photovoltaic power generation. The secondary reflector is used for reflecting sunlight reflected by the arc spectrum frequency divider again. The heat collector is used for receiving sunlight reflected by the arc spectrum frequency divider and receiving sunlight reflected by the secondary reflector for photo-thermal power generation. Wave bands capable of being used by the photovoltaic module can transmit the photovoltaic module for photovoltaic power generation, wave bands not facilitating photovoltaic power generation of the photovoltaic module are reflected to the heat collector for photo-thermal power generation, the energy flux density of the photovoltaic module is large, and the power generation capacity of the photovoltaic module is high.

The invention relates to an awning for construction in the scorching sun. The awning is applicable to work on scorching sunny, rainy and snowy days and overcomes hardships of workers caused by the high temperature and scorching sun. The awning is composed of support bars (2), cross bars (11) and an awning body (9). According to the awning for construction in the scorching sun, the support bars are composed of first-segment galvanized tubes (2) and second-segment galvanized tubes (4) to support a whole awning frame; the cross bars (11) connect the supporting bars and can stabilize the awning frame; and the awning body (9) can absorb ultraviolet rays in the scorching sun and can further keep the rain off, and the assembly is convenient and fast. Each of bases (1) is provided with four holes to be fixed on the ground, and sleeves are welded on the upper portions, so that the inserting and the withdrawing of the support bars are facilitated, and the mounting and dismounting is facilitated.

The invention discloses a power distribution cabinet with fireproof and heat dissipation functions. The power distribution cabinet comprises a power distribution cabinet body. A support is installed at the bottom of the power distribution cabinet body. An air outlet pipe is installed on the inner wall of the power distribution cabinet. A plurality of air outlet holes are formed in the air outlet pipe. A fan is installed on the support. The air outlet end of the fan is connected with the air outlet pipe through a connecting pipe. An air outlet is formed in a side plate of the power distributioncabinet. Guide rails are symmetrically installed on the two sides of the air outlet. A flexible plate is inserted between the guide rails, and an electric cylinder is installed on one side of the flexible plate. The extending end of the electric cylinder is connected with the flexible plate. A temperature sensor, a controller and a smoke sensor are sequentially installed on the inner wall of thetop plate of the power distribution cabinet body from left to right. Compared with the prior art, the power distribution cabinet has the beneficial effects that the power distribution cabinet is simple in structure and reasonable in design; the power distribution cabinet can automatically and quickly discharge heat when the temperature in the power distribution cabinet is too high; and when a fireoccurs in the power distribution cabinet, the controller closes an electromagnetic valve and closes the air outlet, oxygen is prevented from entering the power distribution cabinet, and the fire is automatically extinguished.

The invention provides an image determination method and system for determining the iron element content in sandalwood plant growth soil and belongs to the technical field of measurement and computers. The method comprises the following steps that a predicted equation is established, and equation parameters are determined; a soil sample is obtained, and the iron element content in the soil is determined; a plant sample is obtained; a support vector machine (SVM) image partition method is used for obtaining a sandalwood tree species foreground image; image parameters are obtained, and the relation about the images and the iron element content in the soil is obtained; the iron element content in the plant soil is predicted based on the relation. By adopting the image determination method, judgment on iron element lack of the sandalwood plant growth soil can be achieved through a common camera and a computer. Therefore, the iron element content of currently growing sandalwood plants can be estimated without additional devices, and the image determination method and system is especially suitable for nutrient diagnosis of precious species and operating management work of healthy growth.

The invention discloses a semiautomatic fruit harvesting machine applicable to paddy field work. The semiautomatic fruit harvesting machine comprises a movable support and a warehousing cavity; the movable support comprises two parallelly arranged beams, and the beams are connected with base joints at the bottom of the warehousing cavity, and can telescope; each beam is at least provided with three supporting legs, and the supporting legs comprise supporting discs, shins and legs. The supporting discs are installed at the bottoms of the shins, the shins are connected with suspending arm ends of the legs, and the shins and the legs can telescope. The semiautomatic fruit harvesting machine applicable to the paddy field work can achieve motions of forwarding, retreating, right transverse walking, left transverse walking, lifting and putting down, can move in a harvesting field, and is high in applicability; the warehousing cavity both has effects of storing fruits and serving the function as the harvesting field, can lower the labor intensity of lotus farmers, and improve the harvesting efficiency; in a working field, the motion trail is in a dotted shape, and the harm to crops is small.

The invention provides an interference type fiber bragg grating acoustic emission signal sensing system. The system comprises a fiber bragg grating, a 1 * 2 fiber coupler, two fiber delay lines, a 3 *3 fiber coupler, a multichannel photoelectric detection circuit module, a multichannel pre-amplifier circuit module, a multichannel digital acquisition card and an FPGA field programmable gate array.According to the system, an unbalanced Mach-Zehnder interferometer consisting of a 1 * 2 optical fiber coupler, an optical fiber delay line and a 3 * 3 optical fiber coupler is utilized; the change of the central wavelength generated by the acoustic emission signal acting on the fiber bragg grating is converted into the change of the phase difference of the receiving end of the interferometer, and then converted into the change of the light intensity, and finally the detection of the acoustic emission signal is realized through photoelectric conversion and signal processing. According to theinvention, the influence of temperature change on acoustic emission signal detection can be effectively reduced, and the system stability and the detection precision are improved.