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254 results about "Work demand" patented technology

On Demand Work’s self-service functionality helps lower operating costs by enforcing process control and keeping information current, accessible, and actionable. This centralized repository enables improved forecasting and budgeting to optimize operational effectiveness.

Hand-eye vision calibration method for robot hole boring system

The invention discloses a hand-eye vision calibration method for a robot hole boring system, and the hand-eye vision calibration method comprises the steps of firstly calibrating an origin point of a coordinate system of a tool on an end effector of the robot, that is TCP, establishing a scene coordinate system in a shot plane, then shooting two points in the plane, using the TCP to contact the two points, further obtaining the relationship between an imaging coordinate system of a camera and the scene coordinate system and utilizing the relationship to calculate the position relationship of the TCP in the scene coordinate system. Finally, the position relationship between the TCP and the imaging coordinate system of the camera, that is the hand-eye relationship, is indirectly obtained by taking the scene coordinate system as an intermediate conversion coordinate system. The hand-eye vision calibration method ignores depth information of the camera in the hand-eye relationship and transforms the calibration process into the geometric relationship, the calibration process is simple, the calculation amount is small, an expensive three-coordinate measuring device is unnecessary, and the precision is higher, thereby having higher practical value and being capable of meeting the practical working needs of the robot hole boring system.
Owner:BEIHANG UNIV

High voltage DC vacuum relay with high reliability and long service life

The invention discloses a high voltage DC vacuum relay with high reliability and long service life, which is arranged inside a vacuum cavity body that is sealed and connected by meal and ceramic; a ceramic insulator is connected between a movable contact component and a push rod in a sliding way; the good vacuum performance and electric insulation performance of the ceramic insulator can be utilized to lead the movable contact and a fixed contact to main good electric insulation together with a magnetic circuit system formed by a magnetic guide yoke iron plate of the relay, an iron core and the like no matter in a state of connection or disconnection, so that current interruption capability of the relay can be guaranteed when DC high-voltage load is switched; a vacuum chamber body and allparts in side the vacuum chamber body formed by the high voltage DC vacuum relay have low enough saturated vapor pressure and are treated by high temperature baking exhaust, so that the vacuum degreein the vacuum chamber body can ensure the work demand of the relay on switching heavy current and the DC high-voltage load for a long time; furthermore, the relay also has the advantages of simple andcompact structure, small volume, light weight, strong shock resistance and impact resistance, simple technique process, low production cost and large batch production.
Owner:XIAMEN HONGFA ELECTRIC POWER CONTROLS

Routing inspection system based on intelligent robot of transformer station and method for monitoring operation of transformer station

The invention relates to a routing inspection system based on an intelligent robot of a transformer station and a method for monitoring the operation of the transformer station and can meet all-weather working requirements. The method comprises the following steps of: 1) remotely taking over the right of control of an intelligent routing inspection robot; 2) issuing an equipment detection command to the intelligent routing inspection robot of the transformer station; 3) automatically navigating the intelligent routing inspection robot to an operation point by using an optimum path specification, and sending back a real-time monitoring video; 4) after an operator is in place on the scene, waiting for an operation command; 5) issuing a single-operation instruction to the operator; 6) monitoring the operation of a scene person by using the video of the intelligent routing inspection robot; 7) remotely controlling the intelligent routing inspection robot to move to an appropriate position or adjusting a holder of the intelligent routing inspection robot to be at an appropriate angle; 8) after the operation of the steps is finished, waiting for the next operation instruction; and 9) after all operation tasks are finished, controlling the intelligent routing inspection robot to automatically move back to a charging room for charging, and finishing the operation.
Owner:SHANDONG ELECTRIC POWER RES INST +1

Accurate one-dimensional rotary and two-dimensional tilting table

The invention discloses a one-dimensional rotation and two-dimensional inclination working platform, which comprises a pedestal, a bottom layer board, a middle layer board, an upper layer board, an adjusting mechanism and a driving part. The bottom layer board and the upper layer board achieve the inclination of the working platform in a mutually orthogonal direction respectively, while the middle layer board achieves the rotation of the working platform in a larger range in a plane vertical to the two orthogonal directions. The pedestal is connected with the bottom layer board through a rotating pair, a wedged slide block and a spring, a linear guide way is fixed on a bottom plate, and the wedged slide block supports the bottom layer board; the bottom layer board is connected with the middle layer board through a cambered guide way and a central rotating shaft; and the middle layer board is also connected with the upper layer board through the rotating pair, the wedged slide block and the spring, the linear guide way is fixed on the middle layer board, and the wedged slide block supports the upper layer board. The adjusting mechanism comprises a coarse adjusting structure and a fine adjusting structure. The invention can achieve the work demands of the one-dimensional rotation and the two-dimensional inclination for the working platform, and can achieve the angle positioning of a sub-angle second-time level in a larger space adjusting range.
Owner:TONGJI UNIV

Flexible combination type electric capacitance tomography data obtaining system for sensor electrode

The invention provides a flexible combination type electric capacitance tomography data obtaining system for a sensor electrode. The flexible combination type electric capacitance tomography data obtaining system consists of a hardware system and control software; the hardware system comprises six parts, namely a capacitance sensor, a microcontroller, a combination array switch, an excitation source, a capacitance-to-voltage and digital-to-analogue conversion circuit and an upper computer; the excitation source is used for generating a sinusoidal signal with a high precision; the combination array switch receives a control instruction sent by the microcontroller so as to realize flexible combination of working modes of the sensor electrode; the capacitance-to-voltage and digital-to-analogue conversion circuit realizes conversion between a capacitance value and a voltage value of a sensor, data conditioning, and conversion between an analogue signal and a digital signal; and the control software is mounted on the upper computer, sets the data obtaining system by controlling a software interface, and sends information to the microcontroller. The flexible combination type electric capacitance tomography data obtaining system is matched with the control software by adopting a modularized design, and carries out modularized assembly according to actual working demands, so that the random flexible combination of the excitation source and a measurement polar plate is realized; and the environment adaptive capacity, the generality and the measurement precision of the data obtaining system are improved, and the cost is saved.
Owner:ZHONGBEI UNIV

Rural settlement concentrated residential area site selection and optimization method based on GIS

The invention discloses a rural settlement concentrated residential area site selection and optimization method based on GIS. The method comprises the following steps: firstly acquiring a target region space and attribute data based on the GIS, constructing an information amount model to perform rural settlement concentrated residence area land utilization suitability evaluation, superposing the land utilization planning permissible construction area to acquire a candidate site, setting the area size threshold to perform screening, and then optimizing the candidate site by using a P-median problem model. By utilizing the GIS technology, the information amount model is constructed, the rural settlement land utilization suitability evaluation and site selection are quantitatively performed,the P-median problem model in the integer linear programming is used for performing the location optimization, and the site selection demand is flexibly set, the site selection result is positioned tothe parcel; and the candidate site is based on the actual road network, and takes the daily work demand of the farmer after relocation into consideration, so that the distance cost is the minimum, and the method has the advantages of being high in precision and strong in operability.
Owner:ANHUI UNIVERSITY OF ARCHITECTURE

Public transportation new energy pure trolley bus charging power dynamic allocation method

The invention discloses a public transportation new energy pure trolley bus charging power dynamic allocation method, and comprises a vehicle-mounted battery detection device and a charging power dynamic allocation system. The method comprises the steps of detecting the real-time electric quantity Q of a battery by installing the vehicle-mounted battery detection device, and meanwhile, detecting the performance parameter set C when the battery works; transmitting the electric quantity Q and the performance parameter set C to the charging power dynamic allocation system in real time; detecting and recording the output power of all charging piles by means of the charging power dynamic allocation system, and sorting the different output power of all charging piles from big to small. Combined with a public transportation schedule dispatching system, the method provides multiple charging strategies and improves the power load and the utilization efficiency of charging facilities; when a bus is charged in the night, primary and secondary charging operation can be conducted combined with the position number of the public transport vehicles, and the system can set the charging power and the charging time according to the actual condition, and preferentially and quickly charges the started public transport vehicles in the morning, meets the work requirements of the main public transport vehicles, and improves the working efficiency of a charging station.
Owner:ZHENGZHOU TIAMAES TECH

Multi-functional weed and loose soil machine

The multi-purpose weeding and loose soil machine belongs to the agricultural machinery. An upper fixed connecting plate and a lower fixed connecting plate which are relatively collocated up and down are fixedly arranged on the upper plane and the lower plane at the left side and the right side of a front beam; an idler wheel is arranged on the upper fixed connecting plate and the lower fixed connecting plate; a rear beam is inserted at the position between the upper fixed connecting plate and the lower fixed connecting plate, and the outer surface of the column of the idler wheel on the upper fixed connecting plate is contacted and matched with the upper surface of the rear beam; the outer surface of the column of the idler wheel on the lower fixed connecting plate is contacted and matched with the lower surface of the rear beam; a redirector assembly is fixedly arranged on the front beam; the driving rack of the redirector assembly is connected with the rear beam; a deep loosening and earthing blade assembly is arranged on the rear beam, and the deep loosening and earthing blade assembly is located at the parts of the left side and the right side of a weed extractor assembly; working in the field once, the machine can finish the two operations of weeding as well as deep loosening and ridging and can adapt to the work demand of slopping fields, which is characterized in that the structure is novel and reasonable, the working functions are complete, the working quality is good, the adaptive capacity is strong, the adjustment is simple and convenient, and the use is reliable.
Owner:SUNWU COUNTY NONGFA AGRI MACHINERY

AC high voltage live line work shielding thermal insulation suit

The invention discloses an AC high voltage live line work shielding thermal insulation suit, belonging to the live line work shielding suit. A cap, a coat and trousers are connected together to form Siamese clothes, two gloves are connected with the cuffs of the coat of the Siamese clothes through electric conductors, conductive socks are connected with the trousers bottoms of the trousers of the Siamese clothes through electric conductors; each part of the shielding thermal insulation suit adopts four-layer structure, the outermost layer is conductive cloth, the second layer is flame-resistant cloth, the third layer is carbon fiber thermal insulation mat, the innermost layer is lining cloth; and the second layer flame-resistant cloth and the third layer carbon fiber thermal insulation mat compose a thermal insulation flame-resistant layer. The beneficial effect of the invention is as follows: the shielding thermal insulation suit can protect people from high voltage electric field and current and can protect people from a high temperature of about 200 DEG C. Therefore, the suit can meet the working demands of electrified lead-repairing and other equipotential on the high voltage electric power line of the rate capacity lead.
Owner:XUZHOU POWER SUPPLY OF JIANGSU ELECTRIC POWER +1

Excavator movable arm hydraulic control system and lifting control method

The invention relates to an excavator movable arm hydraulic control system for reducing the oil consumption in operation of an excavator and preferably meeting the working demands under common workingconditions. In the excavator movable arm hydraulic control system, a fourth station of a control main valve is used as a movable arm two-way floating work station; a movable arm downward floating oilway is arranged in an oil way in a third work station; a fourth work station for limiting the moving travel of a valve element is provided for enabling a control device; a right oil port of a right pump is connected with an oil inlet of a control main valve through an oil inlet stop valve; the oil inlet stop valve is stopped only when a movable arm is descended and a one-way or two-way floating mode is performed; otherwise, the oil inlet stop valve is located in a conducted state; the control device is enabled by the fourth work station; the enabled state is located only when the movable armis descend and the two-way floating mode is performed; otherwise, a prohibited state is located; and through an electromagnetic valve, the oil inlet stop valve and the fourth work station are controlled to enable the control device. Through switching of working modes, different working demands are met, so that the oil consumption can be reduced, and the operation efficiency is improved.
Owner:LIUZHOU LIUGONG EXCAVATORS +2

Hybrid mechanism-based kinematic solution method for active wave compensation systems

The invention provides a hybrid mechanism-based kinematic solution method for active wave compensation systems. The method comprises the following steps of: in an inverse kinematic process, solving aposition and a posture, in a space, of a mobile platform through a pose parameter of a target point at the tail end of an upper platform, solving the displacement of each rod length, namely, each mobile pair, and inputting an obtained joint motion amount into a compensation platform controller to realize motion control; and in a forward kinematic process, solving a direction cosine matrix and a position vector, in a static coordinate system, of a mobile coordinate system through 6 input rod lengths, a constraint equation of the rod lengths and a system of simultaneous equations, solving a homogeneous transformation matrix at the tail end of an accommodation ladder of the upper platform, and inputting an obtained pose, in the space, of the tail end of the accommodation ladder into the compensation platform controller to realize motion control. The method is capable of enabling the calculation process to be relatively rapid, simple, correct, efficient and convenient to apply, providing basis for the motion control of active wave compensation systems, and satisfying the work demands of the active wave compensation systems of engineering.
Owner:HARBIN ENG UNIV

Rail double-power working vehicle

A rail double-power working vehicle, comprises a vehicle body, a bogie, a machine room and a working system, wherein a traction motor is installed on the bogie, and the traction motor is connected with a vehicle shaft gear case fixed on a bogie wheel pair, to drive the wheel pair by the gear case for walking; a power transmission system is composed of the traction motor, an electrical storage device, an electrical storage device management system, an overhead line system power supply device, an auxiliary invertion power supply, a traction inverter, a vehicle operating device and a power system controller; the electrical storage device, the electrical storage device management system, the overhead line system power supply device, the auxiliary invertion power supply and the traction inverter are fixed on the vehicle body; and the vehicle operating device and the power system controller are installed in a driver's cab, and the driver adjusts the power system controller by the vehicle operating device, thereby controlling the whole vehicle. The rail double-power working vehicle of the invention can individually run when supplied with power by the overhead line system power supply device, and can also individually run when supplied with power by the electrical storage device. Electricity of the electrical storage device can satisfy a daily working demand of the working vehicle, can reduce noise and discharge, can protect environment, and can save energy.
Owner:GEMAC ENG MACHINERY

High frequency and high precision ultrasound physiotherapy generator

The invention discloses a high frequency and high precision ultrasound physiotherapy generator. The generator comprises a single chip microcomputer module, a DDS signal generating module, a power amplifying module, an impedance matching module, a signal acquisition and control module and a circuit protection module. The DDS signal generating module, power amplification impedance matching module, and an ultrasonic transducer are connected sequentially; the ultrasonic transducer is connected with the signal acquisition and control module; the single chip microcomputer module is connected with the DDS signal generating module, the circuit protection module and the signal acquisition and control module respectively. According to the high frequency and high precision ultrasound therapy generator, the design of the circuit structure is exquisite and reasonable; according to the characteristics of the human physiotherapy, the high frequency ultrasonic vibration signals are adopted so that some pain positions of the human body can be recovered quickly; according to the safety of the human physiotherapy and other requirements, the drive circuit architecture generated by more than 1MHz high frequency signals is constructed reasonably, which can meet the work needs of different working conditions in the human physiotherapy dynamic process, the flexibility is high and scope of application is wide.
Owner:HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL

Emergency scheduling method, system and platform for agricultural machine working

The invention provides an emergency scheduling method, system and platform for agricultural machine working, and is used for solving problems that agricultural machine emergency scheduling is imbalanced and is poor in timeliness. The method comprises the steps: calculating the distances between each land parcel in an agricultural machine working emergency scheduling region and all to-be-scheduled agricultural machines according to the real-time position information of agricultural machines and the position information of the land parcels after an agricultural machine terminal and the related information uploaded by the agricultural machine terminal; distributing a to-be-scheduled agricultural machine which is the nearest to each land parcel to the land parcel; building a scheduling relation between a to-be-operated land parcel and the to-be-scheduled agricultural machine, and transmitting the scheduling relation to the agricultural machine terminal corresponding to an agricultural machine identification and the agricultural machine terminal corresponding to a land parcel identification in the scheduling relation. The method is suitable for the emergency scheduling of the agricultural machines to achieve rush-harvest and rush-plant tasks of a farmland when severe weather comes or there is an emergency work demand.
Owner:HEBEI AGRICULTURAL UNIV.
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