32results about How to "Suitable for maintenance" patented technology

The invention relates to an energy conservation and emission reduction device for internal-combustion engine micro-hydrogen jet, which comprises an oxyhydrogen electrolysis pool, an electrolyte reservoir, a current pulse width modulation volume control and safety protection circuit, a gas washing tank, a water seal anti-backfire pot, a generator and a multiple-connected battery; the current pulse width modulation volume control and safety protection circuit and the positive and negative electrodes of a conductive electrode plate of the oxyhydrogen electrolysis pool are connected into a loop; the case of the oxyhydrogen electrolysis pool is provided with two holes, and pipelines led out of the two holes of the oxyhydrogen electrolysis pool are sequentially connected with the electrolyte reservoir, the gas washing tank, the water seal anti-backfire tank and an internal-combustion engine. The device injects the mixed oxyhydrogen gas after water electrolysis into a combustion chamber of the internal-combustion engine to accelerate fuel oil or fuel gas combustion and realizes the full combustion of the fuel oil or fuel gas, thus improving the thermal efficiency, reducing the consumption of the fuel oil or fuel gas, and reducing the emissions of greenhouse gases, harmful gases and solid particles. The device is used for various vehicles, ships, generator sets and the like which take the internal-combustion engine as power.

The invention relates to the field of computer graph processing, and particularly relates to a three-dimensional model compression method based on three-dimensional mesh subdivision and coding. The method comprises the steps that the boundary parameter of an axial bounding box is determined; the aliquot factor of the axial bounding box is calculated; according to the aliquot factor, three-dimensional mesh subdivision is carried out on the axial bounding box, and the unique index coding of a subdivision mesh is established; index coding data, which are corresponding to the three-dimensional subdivision mesh, of the vertex are calculated; the coordinate of each subdivision mesh origin is calculated; the offset of the three-dimensional model vertex coordinate relative to a three-dimensional subdivision mesh origin is calculated to acquire the floating-point precision of the vertex coordinate, and the offset is integerized; data entropy coding is carried out on the data; and an open-source LZMA compression algorithm is used to carry out parameter data compression. According to the invention, three-dimensional subdivision mesh index coding is carried out on the three-dimensional model vertex according to relevant parameters, and the corresponding offset is calculated; space occupied by the offset is greatly reduced compared with the original vertex coordinate data; and the compression ratio is improved.

The invention discloses a multifunctional forced stirring asphalt pavement maintenance vehicle; wherein, a generator set, an asphalt box and an asphalt measure and feeding device, a mineral aggregate lifting device, a burner, a mineral aggregate drying and heating unit, an asphalt concrete forced stirring device, a mineral powder weighting and conveying device, a dust remover, an electric-control device and an accessories device are arranged in the front of the chassis of the automobile or trailer; the mineral aggregate lifting device is fixedly arranged in front of or behind the mineral aggregate drying and heating unit; the mineral powder weighting and conveying device is arranged in parallel with a side of the asphalt concrete forced stirring device; the asphalt concrete forced stirring device and the mineral powder weighting and conveying device are added and the mineral aggregate lifting device is fixedly arranged in front of or behind the mineral aggregate drying and heating unit, compared with the prior art. The multifunctional forced stirring asphalt pavement maintenance vehicle has the advantages of resolving the prior roller type stirring asphalt concrete drawbacks of stirring unevenly of asphalt and mineral aggregate, unsatisfying the requirements of stirring, unevenly coated material, long stirring time, no initial drying and low work efficiency, and being suitable for maintenance of a plurality of highway asphalt pavements.

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 discloses water-based environment-friendly rust removal and prevention film covering liquid and a production process thereof. The water-based low-VOC environment-friendly rust removal and prevention film covering liquid is prepared by adding coalescing agent, base material wetting agent, import antifoaming agent and other pollution-free auxiliaries with tannic acid as rust removal and prevention agent and vinyl multi-copolymerization emulsion as film forming material. Raw materials of the liquid are easy to obtain, rust removal labor is saved, anti-corrosion performance is high, and safety, environment protection and acid and alkali corrosion resistance are achieved.

The invention belongs to the technical field of clinical diagnosis, and discloses a clinical diagnosis aid decision-making system and a medical knowledge graph accumulation method. The system comprises a vital sign acquisition module, a medical image acquisition module, a central control module, a diagnosis analysis module, a treatment scheme recommendation module, a medical knowledge retrieval module, an atlas creation module, a data storage module and a display module. According to the invention, the model is trained by using historical data of various disease types through the diagnosis analysis module, so the effect of pre-diagnosing a plurality of disease types by only one model can be achieved, the system is very suitable for clinical diagnosis management and maintenance, and the diagnosis analysis result is accurate; meanwhile, the medical knowledge graph is created through the graph creation module, and the medical data is managed through the medical knowledge graph, so when the medical data is used, the medical data can be extracted through the medical knowledge graph, and the convenience of using the medical data can be improved to a certain extent.

The invention discloses a nylon tube feeder and a using method thereof, and belongs to enginery. The nylon tube feeder mainly comprises a feeder framework, a motive power air cylinder, a nylon tube cutter component, an auxiliary calibrated scale assembly for measuring the cutting length and a pneumatic control device for implementing cutting operation; the feeder framework is a metal support structure of the device; the motive power air cylinder for providing cutting motive power is fixed on the upper part of the feeder framework; a nylon tube cutter is installed on the lower part of the motive power air cylinder; the motive power air cylinder provides cutting motive power for the nylon tube cutter; a left fixed block and a right fixed block which are fixed on the base at the bottom of the feeder framework form a containing space, and the containing space is provided with a matched clearance for containing the vertical cutting motion of a cutter body of the nylon tube cutter; the motive power air cylinder comprises an air cylinder body and a piston rod; the nylon tube cutter comprises the cutter body and a sliding block; and the nylon tube cutter and the piston rod are fixedly connected. The nylon tube feeder is small in volume and simple in structure, and when the nylon tube is cut, the cutting quality is ensured because of the extrusion effect of the nylon tube cutter.

The invention discloses a protection method of a super-long-period shut-down thermal generator set, which comprises the following steps: 1. preparing an octadecylamine emulsion; 2. adding the octadecylamine emulsion; 3. preparing an ammonia-diammonium protection solution; 4. adding the ammonia-diammonium protection solution; and 5. putting silica gel, inspecting and treating the color change and replacing the colloid every 7-10 days, and determining the change of the inspection period. The method has the advantages of favorable film-forming effect and wide film-forming protection range; the thermal generator set is maintained sectionally, so the effect is better; the method is suitable for the maintenance of the thermal generator set which has been continuously shut down for more than half a year to one year; the invention greatly shortens the vapor quality qualification time when starting the thermal generator set, saves abundant water and coal, and has obvious economic benefit; and the invention does not need to greatly reconstruct the original pipeline, and therefore, has the advantages of simple technique, easy operation and high safety.

The invention discloses a lip balm and a preparation method thereof. Various plant extracts are used as raw materials. The plant extracts are mainly composed of ethylhexyl palmitate, tribehenin, sorbitan stearate, palmitoyl oligopeptide, Composed of rose flower oil, beeswax, paraffin, olive oil, almond oil, sesame oil, chamomile essential oil, aloe vera juice, vitamin E, the lipstick of the present invention can effectively moisturize, prevent skin roughness, cracking, macule, wrinkle and acne, and use The material is natural and has no side effects, especially suitable for the maintenance of lips in autumn and winter.

The invention discloses a flexible piezoelectric sensor and a manufacturing method thereof. The piezoelectric sensor structure comprises a negative electrode terminal, a first insulating packaging layer, a negative electrode layer, a flexible piezoelectric material layer, a positive electrode layer, a second insulating packaging layer, a positive electrode terminal and the like; the manufacturingof the flexible piezoelectric sensor mainly comprises that the prefabricated first insulating packaging layer and the prefabricated second insulating packaging layer are taken as carriers, the first insulating packaging layer and the second insulating packaging layer are sequentially and synchronously used for manufacturing electrode terminal mounting holes, the negative and positive electrode terminals are mounted, the negative and positive electrode layers are sprayed, a negative electrode flexible piezoelectric material layer and a positive electrode flexible piezoelectric material layer are sprayed, and the flexible piezoelectric material layer is formed through extruding and gluing, and the flexible piezoelectric sensor enters a uniform electric field for polarization. The flexible piezoelectric sensor is compact in structure, high in flexibility, integrally packaged, high in weather resistance, stable in performance and convenient to mount and maintain. The manufacturing method of the flexible piezoelectric sensor is simple and feasible in process, high in automatic production degree and high in production efficiency, and meanwhile, the flexible piezoelectric sensor with anysize is manufactured theoretically.

The invention discloses a road ice-snow remover based on a temperature field and an ice-snow removing method thereof. The urban road is easy to form an ice surface after snowing in winter, so the road is difficult for vehicles and people to run and walk; and serious pollution and damage on the land and water sources are caused by adopting a snow melting agent. Although the prior ice-snow removing machines are comparatively mature, the machines are helpless for the ice layer on the surface of the road. The road ice-snow remover comprises a front vehicle (1); the front vehicle (1) comprises a water tank (2) and a fuel tank (3); the fuel tank (3) is connected with a heater (4); the heater (4) is connected with a sucking disc (5); the sucking disc (5) is connected with a sealed water storage tank (7) arranged in a trailer through a conduit (6); and the sealed water storage tank (7) is connected with a vacuum pump (8). The road ice-snow remover and the ice-snow removing method thereof are applied to removing the snow and ice accumulated on the road.

The invention relates to an air filtering device for an incubator for infants. The air filtering device comprises an air supply channel. The side wall of the air supply channel is provided with a drive motor. An output shaft of the drive motor is provided with a centrifugal blade. The air inlet end of the air supply channel is connected with the air filtering device. An air inlet of the air filtering device is provided with a control valve. An air filtering layer and a first filtering screen are arranged in the air filtering device. A second filtering screen is arranged in the air supply channel. The outer side of the drive motor is provided with a sound isolation cover. According to the air filtering device, the air filtering layer, the first filtering screen and the second filtering screen are arranged, so that air entering the air channel can be filtered, the cleanliness of the air entering a cabin is guaranteed effectively, and the environment in the cabin is more suitable for daycare of sick infants; the sound isolation cover is arranged, so that the noise generated by the drive motor can be reduced, and the influence on the infants are avoided.

The invention discloses a micro drag chain. The micro drag chain comprises a group of base bodies which are hinged with each other and are connected into an integer, and end bodies connected to the two ends of each base body, wherein each base body at least comprises a bottom plate as well as a fixed assembly and a connecting assembly which are arranged at the same side of the bottom plate, and the fixed assembly is matched with the connecting assembly on the adjacent base body to form an accommodating space capable of accommodating a pipeline; and a first limiting device is arranged on each fixed assembly, a second limiting device is arranged on each connecting assembly, and the first limiting device is matched with the second limiting device to complete limiting on an angle of deflectionof the adjacent base body. The micro drag chain has the beneficial effects that: the micro drag chain can be relatively fixed in bending angle in a working process, and prevents unnecessary trouble.Meanwhile, each fixed assembly is matched with each connecting assembly to form a space, periphery of which is sealed, so that a pipeline in the space is guaranteed to not drop, and therefore, the micro drag chain is delicate in structure and is convenient to manufacture.

The invention relates to the technical field of a chemical material, specifically to a road maintenance restoration glue. The restoration glue comprises the following materials, by weight, 50-80 parts of modified asphalt, 2-8 parts of a styrene-butadiene-styrene block copolymer, 10-15 parts of rubber powder, 10-30 parts of dichloromethane, 20-30 parts of linseed oil and 1-3 parts of a stabilizing agent. The invention aims to provide a road maintenance restoration glue which is time-saving and labor-saving and has ideal performance.

The present invention relates to a lip protection balm, which is prepared by mainly mixing beeswax, olive oil, cocoa butter, jojoba oil, coconut oil, almond oil, sesame oil, chamomilia essential oil, an aloe juice, vitamin E and the like according to a certain ratio. The lip protection balm has effects of effective moisturizing, anti-wrinkle and lip cracking prevention, has characteristics of nature raw material and no side effect, and is especially for lip care in fall and winter seasons.

The invention discloses a safe device for repairing a greenhouse roof. The safe device comprises a fixed connection seat and a support seat, wherein a safe belt fastening hole is formed in the fixed connection seat which is fixedly arranged on the support seat, and the support seat is fixedly erected in an opening of a greenhouse gutter. According to the safe device for repairing the greenhouse roof, a safe belt of a greenhouse skylight or roof covering structure maintenance man can be effected bound, and the safety of maintenance and construction is guaranteed.

The invention relates to signal conversion equipment of a remote power meter reading system. The signal conversion equipment comprises an RS485 receiving and transmitting chip, an STM8CPU, an infrared modulation chip, an infrared demodulation chip, an infrared indicating lamp and an RS485 communication indicating lamp, wherein a group of receiving and transmitting ports are formed in the RS485 receiving and transmitting chip to the outside and are locally called by electric energy information acquisition equipment; a group of ports are respectively formed in each of the infrared modulation chip and the infrared demodulation chip to the outside and are used for interacting infrared signals with an electric energy meter; the STM8CPU is used for processing RS485 signals received by the RS485 receiving and transmitting chip and the infrared signals received by the infrared demodulation chip and performing signal transmission so as to realize data conversion under different signals; the infrared indicating lamp is used for indicating that whether the infrared demodulation chip is in a working state or not; the RS485 communication indicating lamp is used for indicating that whether the RS485 receiving and transmitting chip is in a working state or not. The signal conversion equipment can be mounted on the electric energy meter so as to convert signals, therefore, demands for acquiring the data are met, and various expenses are greatly lowered.

The invention aims at providing a portable asphalt heating kettle, which is used for pavement repair under the condition of few pavement cracks. The portable asphalt heating kettle provided by the invention comprises a kettle body, and is characterized in that an opening through which liquid-state asphalt flows out is formed in the bottom of one side of the kettle body; a flow guide groove is formed in an opening position; the kettle body is provided with clamp grooves at the two sides of the opening; a plate-shaped valve is movably arranged in each clamp groove; when the valve falls down, the opening can be sealed. The kettle body can be used for heating the inside asphalt into liquid-state asphalt; when the liquid-state asphalt needs to be poured out, the liquid-state asphalt can be poured out from the opening position only by upwards lifting the valve; after the use, the valve can be used for sealing the opening; the asphalt in the flow guide groove can condense; the upper part is exposed out, so that the cleaning is also convenient. The portable asphalt heating kettle has the advantages that through the arrangement of the flow guide groove and the valve, the problem of continuous use incapability due to the condensation of the asphalt in a kettle nozzle can be solved; the portable asphalt heating kettle is very suitable for the maintenance of pavements with few cracks.

The invention discloses an LED lamp for inspection and maintenance. The LED (Light Emitting Diode) lamp comprises a lamp body. The LED lamp is characterized in that an LED lamp is movably arranged in the lamp body, an LED lamp protective cover is arranged to surround the LED lamp, the LED lamp is fixed on one end of a connecting tapeline, the other end of the connecting tapeline is fixed on a movable rotating shaft which is fixed inside the lamp body, a lamp body sliding door is arranged on the top of the lamp body, and the lamp body sliding door is fixed inside the lamp body through a guide rail. The LED lamp for inspection and maintenance has the advantages that the LED lamp is small in volume, energy-saving and environmental friendly and low in cost, when not used, the LED lamp is covered to prevent unnecessary damage and accumulation of dust, and the LED lamp is good in stability and applicable to inspection and maintenance of machines in various sizes.

The invention discloses a lead screw connection device, comprising a lead screw, a sleeve coupling is arranged on the lead screw, a supporting sleeve is sleeved on the sleeve coupling, and a bracket is arranged on the support sleeve , the support sleeve is provided with a reduction box, the reduction box is connected with a stepping motor, the support sleeve and the bracket are matched through nuts and washers, and the support sleeve and the bracket are connected through pin shafts. The reduction box is fixedly connected to the stepping motor through a screw, and the lead screw and sleeve coupling are fixedly connected through a pin shaft. The present invention has the advantages of simple structure, suitable for maintenance and stable connection.

A leather maintenance machine includes a liquid inlet, a main body and a cabinet door, wherein one end of the liquid inlet is fixedly connected with a liquid storage tank. The bottom end of the liquidstorage tank is screwed to one end of the liquid inlet pipe. The other end of the liquid inlet pipe is screwed with a spray head. A maintenance cavity is arranged on the outside of the spray head, aventilation pipe is clamped on the top end of one side of the maintenance cavity, a motor is fixedly installed on the inner wall of the main body, a bearing is screwed on one side of the motor, a cabinet is installed on the outside of the cabinet door, a pull button is bolted on the surface of the cabinet door, and a suction fan is installed on the top end of the cabinet. By installing a brush andfelt, the invention can automatically dust and polish the leather on the surface of the leather shoe, thus saving time and labor. The odor air inside the maintenance machine is pumped out by the ventilating pipe and the ventilating fan, thereby realizing the circulation of the air inside and outside the maintenance machine, preventing the odor inside the maintenance machine from occurring, and observing the internal maintenance situation at any time by installing an observation mirror.

The invention provides a lifting and turning baby nursing bed, which belongs to the technical field of baby nursing equipment, and includes a base, and two telescopic rods are arranged symmetrically on the surface of the base, and the top ends of the two telescopic rods are fixedly connected with supporting seats. A bed body is rotatably connected between the two support seats through a rotating shaft; an adjustment plate for the baby to sit on is provided on one side of the bed body; Turning device, the turning device includes a motor, the output shaft of the motor is fixedly connected with a turntable, and the turntable is fixed with a transmission rod vertically upward, and the top of the transmission rod is slidably connected in the through groove on the transmission plate, The transmission plate is located directly below the bed body and arranged parallel to the bed body, and the transmission plate is fixedly connected to the lower surface of the bed body through the third telescopic rod and the fourth telescopic rod. The invention has a simple structure, can realize the automatic swing of the bed body, and reduces the workload of the caregiver.

The invention provides a liftable turnover baby nursing bed, and belongs to the technical field of baby nursing instruments. The bed comprises a base, two telescopic rods are symmetrically arranged onthe surface of the base, supporting bases are fixedly connected to the tops of the two telescopic rods respectively, and a bed body is rotatably connected between the two supporting bases through rotating shafts; one side in the bed body is provided with an adjustment plate for a baby to sit on and lean against; the liftable turnover baby nursing bed further comprises a turnover device for enabling the bed body to swing, the turnover device comprises a motor, a rotating platform is fixedly connected to an output shaft of the motor, a transmission rod is fixedly and vertically upwards connected to the rotating platform, the top of the transmission rod is slidingly connected to a through groove in a transmission plate, and the transmission plate is parallel to the bed body and is located under the bed body and fixedly connected with the lower surface of the bed body through a third telescopic rod and a fourth telescopic rod. The bed is simple in structure, the bed body can automaticallyswing, and the workload of a caregiver is reduced.

The invention discloses a protection method of a super-long-period shut-down thermal generator set, which comprises the following steps: 1. preparing an octadecylamine emulsion; 2. adding the octadecylamine emulsion; 3. preparing an ammonia-diammonium protection solution; 4. adding the ammonia-diammonium protection solution; and 5. putting silica gel, inspecting and treating the color change and replacing the colloid every 7-10 days, and determining the change of the inspection period. The method has the advantages of favorable film-forming effect and wide film-forming protection range; the thermal generator set is maintained sectionally, so the effect is better; the method is suitable for the maintenance of the thermal generator set which has been continuously shut down for more than half a year to one year; the invention greatly shortens the vapor quality qualification time when starting the thermal generator set, saves abundant water and coal, and has obvious economic benefit; and the invention does not need to greatly reconstruct the original pipeline, and therefore, has the advantages of simple technique, easy operation and high safety.

The invention belongs to the technical field of unbalance loading correction, and discloses an unbalance loading correction method for a multi-station hydraulic machine, which comprises the following steps: S1, firstly, correspondingly putting a first workpiece, a second workpiece and a third workpiece into a first station, a second station and a third station respectively; and S2, then the stamping device is controlled to drive a first stamping head, a second stamping head and a third stamping head to apply machining pressure to the first workpiece, the second workpiece and the third workpiece below correspondingly. According to the unbalance loading correction method of the multi-station hydraulic machine, correct implementation of the extrusion forming process of the multi-station hydraulic machine is completed in the state that the pressure of each station is balanced, and during actual extrusion production, if the extrusion force of each station is different, the hydraulic oil cylinder is not required to return oil every time; the oil return amount of the hydraulic oil can be judged by observing whether the specific pressure value on the pressure display meter is within a safe range or not, and timely maintenance is facilitated.

The invention provides a pipe wrench. The pipe wrench is composed of a handle and a wrench head. The wrench head is composed of a movable wrench jaw, a fixed wrench jaw and a sliding structure, wherein the movable wrench jaw is connected with the main body of the wrench head through the sliding structure and matched with the fixed wrench jaw; the handle is arranged on one side of the wrench head and connected with the tail end of the wrench head. The pipe wrench is wide in single twisting range and is particularly applicable to maintenance of laid small-diameter pipes.

The invention discloses a multifunctional forced stirring asphalt pavement maintenance vehicle; wherein, a generator set, an asphalt box and an asphalt measure and feeding device, a mineral aggregate lifting device, a burner, a mineral aggregate drying and heating unit, an asphalt concrete forced stirring device, a mineral powder weighting and conveying device, a dust remover, an electric-controldevice and an accessories device are arranged in the front of the chassis of the automobile or trailer; the mineral aggregate lifting device is fixedly arranged in front of or behind the mineral aggregate drying and heating unit; the mineral powder weighting and conveying device is arranged in parallel with a side of the asphalt concrete forced stirring device; the asphalt concrete forced stirring device and the mineral powder weighting and conveying device are added and the mineral aggregate lifting device is fixedly arranged in front of or behind the mineral aggregate drying and heating unit, compared with the prior art. The multifunctional forced stirring asphalt pavement maintenance vehicle has the advantages of resolving the prior roller type stirring asphalt concrete drawbacks of stirring unevenly of asphalt and mineral aggregate, unsatisfying the requirements of stirring, unevenly coated material, long stirring time, no initial drying and low work efficiency, and being suitablefor maintenance of a plurality of highway asphalt pavements.

The present invention relates to a construction method for repairing high-speed road surface concrete split, which is characterized by that its uses a special-purpose material 'cuoliping' to make the concrete split by quickly levelled so as to attain the goal of quickly repairing concrete split.

The vehicular motor for starting and producing electricity consists of stator, rotor, windings and drive controlling circuit. It features the rotor iron core comprising symmetrical permanent magnet with 2 or 3 pairs of slot wedge holes, cage-shaped winding guide strip, non-magnetic inner ring and shaft hole structure. The guide strip serves as starting winding for the starter, and the permanent magnet provides DC magnetic field to interact with the alternate magnetic field of the stator winding to produce torque. During producing electricity, the permanent magnetic rotor provides exciting magnetic field. The drive controlling circuit includes great-power switching transistor, inverter circuit, triphase bridge rectifier and automatic igniting switch. The vehicular motor is simple in structure and universal, has great output power and can prolong the service life of accumulator.

The invention provides a disassembly and assembly device of a valve assembly, and relates to the technical field of maintenance tools of engine parts. The disassembly and assembly device comprises a bracket, a pull rod, a safety ring and an adjusting nut, wherein the pull rod has a cylinder structure; the lower part of the pull rod is provided with a hollow cavity, and the bottom edge of the pull rod is provided with an outer edge; the safety ring is sleeved on the bottom end of the pull rod and is clamped on the outer edge; the bottom of the cavity is provided with a boss to be matched with a notch of a valve; the lower part of the pull rod is provided with a flare groove along the axis; the bracket is a cylindrical sleeve; the upper end of the bracket is provided with a through hole; the pull rod penetrates through the through hole to be arranged in the bracket; the upper part of the pull rod is provided with external thread which is matched with the adjusting nut; and the lower part of the bracket is provided with an open groove. The disassembly and assembly device is used without being limited to the place, and has the advantages of lightness and convenience in use, easiness in operation, low cost, safety, reliability, capability of reducing the labor intensity of operation workers and suitability for maintenance.