35results about How to "Reduce maintenance difficulties" patented technology

The invention relates to a luminescent device capable of adjusting light emitting angles which comprises at least one directional light source and a light guide shade, wherein, the directional light source can emit light when electrically conducted with a control circuit, and the projection angle of the directional light source is adjustable; the light guide shade is provided with the directional light source inside and a light control microstructure inside, and the light control microstructure is formed by a plurality of microstructural surfaces provided with refraction or reflection property; through adjusting the projection angle of light emitted by the directional light source, the light can project to the different microstructural surfaces on the light control microstructure, thereby changing the light emitting angle of the light emitted from the light guide shade.

The invention provides a user identity authentication method, which comprises the following steps of: uniformly storing and recording authentication parameters of user identity into a unified authentication server, and uniformly authenticating the legality of the user identity by using the unified authentication server when a user logs in network equipment. The invention also provides a user identity authentication system. By the user identity authentication method and the user identity authentication system, security-policy-based unified user management and authentication can be realized, the unified authentication of a plurality of pieces of network equipment over the user identity is realized and the maintenance difficulties and complexity of a network equipment manager are reduced simultaneously, thereby reducing production cost and threats to information security.

The invention discloses inquiry system and method of a customized database. The system comprises a WEB layer module, a service layer module, a DAO layer module and a physical layer module, wherein the WEB layer module calls the corresponding operational project function in the service layer module according to an operational project request of a user; the service layer module breaks up the corresponding operational project function into a plurality of business operations according to a calling indication of the WEB layer module and respectively calls a DAO operation method corresponding to the business operations in the DAO layer module; the physical layer module preliminarily creates an inquiry intermediate table and a public Bean class, i.e. a public affair object class, and inquires in the database according to the operational project request of the user and the preliminarily created inquiry intermediate table, and the inquired operational project result is put into the preliminarily created public Bean class. The invention realizes the real stripping of a framework layer and a data business layer in the inquiry developing process of the database and reduces the problem of difficult resource development and program maintenance.

The invention provides a device and a method for positioning a branch fault in a passive optical access network, and relates to the field of optical fiber communication technology. The device comprises a double optical source module, a 1:N splitter/combiner and N reflective element cascade structures with relevant wavelengths; the double optical source module transmits wavelength probe light into each branch; the probe light is reflected by a reflective element, and a peak graph of reflection peaks of each branch is obtained by the 1:N splitter/combiner, a coupling module, an optical receiving module and a data processing module; the double optical source module transmits another wavelength probe light to obtain the peak graph of the reflection peaks of another group of branches; and the two results are respectively compared with a peak graph in the case of no fault, and the faulty branch is determined according to the distance between the two reflection peaks having the same peak variation amplitude. The device provided by the invention can quickly identify each branch fault in the passive optical access network and realize distance measurement, thereby reducing the maintenance difficulty and lowering the maintenance cost.

The invention discloses a bridge structure health monitoring system based on big data. The bridge structure health monitoring system comprises a bridge detection module, a temporary data storage module, a cloud data transmission module, a server, a data analysis module, a remote inspection module, an alarm module, an external power supply module and a client. The bridge structure health monitoringsystem can perform real-time calculation, can know the health condition of a certain position of the bridge structure at any time, and is high in timeliness; according to the bridge structure healthmonitoring system, when a certain position of the bridge structure has a health condition, the corresponding crack lamp and the corresponding strain lamp can display corresponding colors, so that thehealth condition of the bridge structure is more intuitive and clearer; the bridge structure health monitoring system transmits the picture of the crack problem position of the bridge structure in real time, performs contour identification on the shadow part on the picture, and transmits the picture to the client, so that a user can know the crack condition and make a maintenance scheme in time, and the maintenance difficulty is reduced.

The invention provides an accessory belt tensioning device of an engine accessory wheel system, which comprises a bracket, a pulley, a shaft bolt, a nut and an adjusting bolt; when a screw rod is rotated and adjusted, the pulley moves up and down along the waist-shaped groove of the bracket with the bolt so as to tension or loosen a belt; and simultaneously, after the belt is tensioned, the nut is tightened, the pulley plays the roles of an idler so as to increase the wrapping angle of the adjacent pulley. The tensioning device has the advantages of lower cost, simple and compact structure and convenient assembly, conveniently adjusts the belt, increases the wrapping angle of the pulley, and can achieve the effect of reducing the high cost of a tensioning device of the engine accessory wheel system as well as the adjustment and maintenance difficulty and increasing the wrapping angle of the pulley of the accessory wheel system.

The invention provides a method for remotely updating a DSP program. The method updates the DSP program through CAN communication. According to the method, a complete CAN communication updating program protocol is adopted, it is guaranteed that the program is updated reliably and rapidly, meanwhile, it is guaranteed that abnormal events are processed, and the error correction capacity of the updated program is improved; the maintenance performance of the equipment in the field debugging stage and the final application process can be greatly improved, and the method has huge advantages especially under the conditions that the installation environment of the target equipment is severe and the cost of independently arranging a maintenance interface for the target equipment is high.

The invention discloses a method and a device for managing and maintaining a software program. The method comprises the following steps: setting a management interface frame structure in advance, wherein the management interface is used for managing and maintaining an application program function module and comprises a structural relationship and a parameter transferring method; utilizing a data source and an organization structure in the management interface frame structure to compile a user interface, wherein the user interface is used for displaying a software program structure and operation information; and when the software program is complied, realizing all interfaces in the management interface frame. When the method and the device are used, errors in software operation can be flexibly, conveniently and quickly positioned, the management and maintenance efficiency of a software product can be improved, and a maintenance workload can be lowered.

The present invention discloses communication equipment ringing current controller used in clip-in adapter support backboard. Said communication equipment backboard set has at least one ringing current equipment single board use for through at least one switching circuit providing ringing current to said user board; wherein said device having at least one control single board with at least one control unit and said switching circuit, said control unit use for controlling said switching circuit on-off. Said invented method for and device adopt MCU or logic or logic chip detecting said ringing current signal, backboard ringing current signal and mutual sent signal, and sequential control sequential control, avoiding switch device hard switching and arcking, raising switch device and backboard reliability.

The invention discloses a heat exchange system based on a water source environment-friendly type ground source heat pump, and relates to the field of energy conservation and environmental protection.The heat exchange system comprises a terrestrial heat collecting subsystem, a terminal release subsystem, a ground source heat pump unit and a domestic hot water subsystem; the terrestrial heat collecting subsystem comprises a buried pipeline and a ground source side water pump, and the ground source side water pump is arranged on a connecting pipeline between the buried pipeline and the ground source heat pump unit; the terminal release subsystem comprises terminal heat release equipment, terminal refrigeration equipment and an indoor circulating water pump, and the indoor circulating water pump is arranged on a connecting pipeline between the terminal release subsystem and the ground source heat pump unit; and the domestic hot water subsystem comprises a circulating water treatment tank,a water injection pipe, a water utilization pipe and a condensation pipe. According to the heat exchange system, a purification device is installed inside a water storage tank, and the two kinds of terminals in the system are utilized to realize the effect of serving multiple purposes through one machine, so that direct switching between a heat pump heat source and an air conditioner cold sourceis achieved, the ground source heat pump has the advantages of being efficient, energy-saving and small in pollution, and maintenance difficulty and cost are reduced.

The invention provides a double-motor gearbox and engineering machinery, and relates to the technical field of engineering machinery, and the double-motor gearbox comprises a first output shaft, a second output shaft, a first motor and a second motor. The first motor comprises a first input shaft, and the first input shaft is connected with the first output shaft through a first transmission mechanism; the second motor comprises a second input shaft, and the second input shaft is connected with the second output shaft through a second transmission mechanism; the second input shaft is a hollow shaft, and the first input shaft is movably sleeved with the second input shaft. The problems that in the prior art, two motors are independently placed, so that the structure is scattered, the compactness is low, the occupied space is large, and arrangement and maintenance of the whole machine are not facilitated can be solved, the double motors are integrated, and the motor has the advantages of being compact in structure, small in occupied space and beneficial to arrangement and maintenance of the whole machine.

The invention relates to the technical field of automobile maintenance equipment, in particular to an auxiliary device for automobile maintenance. An automobile height adjusting structure is additionally arranged and can be adjusted according to the use requirements of maintenance personnel, so the maintenance difficulty of the maintenance personnel is reduced, meanwhile, use of lighting equipmentis reduced, and the use convenience and reliability of the equipment are improved. The auxiliary device comprises a support plate; maintenance holes are formed in the middle of the supporting plate.Threaded pipes are fixedly arranged in the four first connecting holes; first threaded rods are arranged in the four threaded pipes in a screwed mode. Rotating shafts are fixedly arranged at the bottom ends of the four first threaded rods; the upper sides of the outer side walls of the two rotating shafts on the front side are fixedly sleeved in first gears; second gears are arranged at the left ends of the first gears on the left side and the right ends of the first gears on the right side in a meshed mode; servo motors are fixedly arranged at the bottom ends of the two second gears; and thelower sides of the outer side walls of the four rotating shafts are fixedly sleeved in transmission wheels.

The invention discloses a method and device for creating k8s cluster and a computer readable storage medium. The method comprises the steps of creating a virtual cluster based on a virtual machine; mapping low-level resources in a first data storage library of the virtual cluster to a second data storage library of the host cluster through a synchronizer; and monitoring the low-level resources based on a scheduler of the host cluster to complete creation of the k8s cluster. The effect of reducing the creation overhead of the k8s cluster is achieved on the premise that the computing power, the network performance and the storage performance of the k8s cluster are not lost, the difficulty that maintenance personnel maintain and manage the k8s cluster in the later period is reduced, a user can create a plurality of k8s clusters on the basis of one terminal equipment. And later maintenance personnel can maintain and manage a plurality of k8s clusters only based on one terminal device.

The invention belongs to the field of smart home, and discloses a method for establishing a smart home sensing layer backbone network. The sensing layer backbone network consists of a gateway node and a plurality of routing nodes; and after a power supply is switched on, the gateway node and the routing nodes can be self-organized into a multi-hop network. The gateway node is provided with an on-off switch, each routing node is also provided with an on-off switch, and whether a lamp is supplied with power or not can be controlled. The nodes of the sensing layer backbone network are mounted on all dome light bases in an indoor environment, particularly, the nodes are connected with the dome light bases, and lamps are then connected with the nodes. After being electrified, all the nodes are self-organized into a network, and therefore, the stable and reliable sensing layer backbone network is formed. On the one hand, the problem that a smart home sensing layer network is not stable enough is solved; and on the other hand, wiring to the traditional wall switches is omitted, and a large amount of materials and labor costs are saved.

The invention provides a buffer device for rotation of a sky wheel. The buffer device comprises a rotating shaft, a second gear, a return spring, a jack, a fixing shaft and a third gear, wherein the rear end of the rotating shaft is mounted at the rear end face in a box body, the front end of the rotating shaft is mounted on the front end face in the box body, the second gear is assembled on the annular side face of the rotating shaft, and the return spring wraps the annular side face of the rotating shaft. The buffer device for rotation of the sky wheel has the advantages that the buffer structure is simplified structurally and maintenance difficulty is reduced; the lower end of the jack is fixed on the lower end face in the box body, the upper end of the jack is mounted on the lower sideof the annular side face of the fixing shaft, and the third gear is mounted at the rear end of the annular side face of the fixing shaft, so that timely connection of the buffer device is achieved, and equipment damage caused by untimely start is avoided; the buffer device is novel in structure, excellent in buffer effect and high in stability and reliability.