1844results about How to "Prevent overload" patented technology

A control system is provided for controlling a load powered by an auxiliary power source during an interruption in the utility power source and/or during a power failure. The control system of the present invention provides power to essential loads in a dwelling as predetermined by a user and/or per the user's real-time instructions as the needs of the user may change. Additionally, the control system of the present invention automatically controls non-essential loads in order to maintain the auxiliary power load below the maximum threshold. Furthermore, the control system of the present invention allows the user to manually override all the controlled loads in an emergency or when the needs of the user change. Additionally, the control system of the present invention allows outside triggers to change the priority of the loads in real-time and can automatically change the priority due to predetermined tasks already running.

Method and device for controlling charging stations for electrical vehicles. In order to minimise peak power demands in at least two charging stations 10 combined into a group 12, actual charging parameters are exchanged 32 within the charging stations 10 within the group 12, a load prediction for the group 12 is created 34 depending on at least the actual charging parameters, and setpoint charging parameters for the charging stations 10 of the group 12 are determined 38 depending on the load prognosis.

A damping element for the dynamic stabilization of two bones, particularly of two adjacent bodies of the vertebra, includes a flexible spring element having a hollow space. The hollow space is open on a first end and closed on a second end by a wall extending transversely to the longitudinal axis of the damping element. A clamping sleeve is inserted at least partially into the hollow space. The sleeve has a front end directed towards the wall of the flexible spring element. The distance between the front end and the wall affects the damping characteristics of the damping element. A coaxial connecting element is attached to each end of the flexible spring element. Each connecting element is configured to be connected within an osteosynthetic stabilizing device.

The invention provides an information polling method, apparatus and system thereof, wherein a message gateway receives an information polling request from an application in an application client, and according to the received information polling request, the message gateway acquires at least one message requested by the application and calculates a reference polling cycle of the application, and sends the acquired message requested by the application and the reference polling cycle to the application. The application determines a polling cycle of a next poll according to a load condition of the application client and the received reference polling cycle. According to the invention, efficiency and quality of the information polling is improved, while the system is ensured to run normally, reducing the cases of message blocking and system breakdown which may occur in the existing situations.

The present invention relates to a method for operating a wind turbine with a generator, drivable by a rotor, for supplying electrical power to an electrical load, in particular an electric grid. In order to compensate for fluctuations in the grid as far as possible, the system of the kind initially specified is developed in such a way that the power delivered to the load by the generator is regulated in response to a current outputted to the load.

In a power capacitor with a plurality of round, wound elements accommodated in a common housing at least one wound element group consisting of three round, wound elements is accommodated in the housing, with the wound elements of the group being arranged in star-form alongside one another, with their axes parallel to one another. The housing has in cross-section in general the shape of a triangle having rounded corners, with a radius of curvature which corresponds at least substantially to the radius of the round, wound elements.

A multi-type power strip includes a main body having connecting sockets with surfaces indicated by priority of supplying electric power to the connecting sockets, operation lamps, and an electric circuit installed in the main body. The circuit interfaces with a remote controller through RF, and checks statuses of loads connected to the main body to switch plural switches based on the priority when the load exceeds a threshold. An intermediate type power strip includes intermediate socket main bodies inserted into sockets and respectively having at least one connecting socket, and a remote controller to individually control the intermediate socket main bodies in remote through RF communication. The surfaces of the intermediate socket main bodies are distinguished by indicators. When switch status of the intermediate socket main bodies is requested by the remote controller, the status is displayed by lamps of a socket controlling button of the remote controller.

The Centralized Vehicle Load Management System is hierarchical in nature in that it detects and remediates an overload which can be highly localized at one or more electrical substations or an overload which is widely distributed as a cumulative set of sub-critical loads. The Centralized Vehicle Load Management System operates to determine the load presented to the Electric Power Grid by vehicles which are served by service disconnects which are located at a plurality of points on the Electric Power Grid. The Centralized Vehicle Load Management System regulates the demands presented by the vehicles to the E-Grid thereby to spread the load presented to the Electric Power Grid over time to enable the controllable charging of a large number of vehicles.

A system for supplying network content to a device. The system includes a first interface for communicating with a network content source for retrieving the network content. The system also includes a second interface for communicating with the device for delivering processed network content to the device. The system includes an agent framework operatively connected to the first interface and the second interface and which operates a plurality of autonomous agents including a content retrieval agent, a content personalization agent, and a content delivery agent. The content retrieval agent is for retrieving the network content from the network content source via the first interface. The content personalization agent is for processing the network content thereby producing the processed network content. The content delivery agent is for delivering the processed network content to the device via the second interface.

The invention relates to a pipeline detection robot. The pipeline detection robot mainly comprises a laser detection mechanism (1), a traction mechanism (2), an electromagnetic ultrasonic detection mechanism (3) and an electronic cabin (4), all of which are connected through connecting hinge shafts; the traction mechanism (1) adopts a single-motor all-drive mode and is driven by a turbo-worm synchronous belt to supply a walking power to the robot; the laser detection mechanism (2) comprises a laser displacement sensor, a rotating arm, a counterweight, a support body and the like and is used for measuring surface corrosion and deformation of a pipeline; the electromagnetic ultrasonic detection mechanism (3) comprises a support assembly, a probe and a fixing plate and is used for measuring the wall thickness and the crack defect of the pipeline; the electronic cabin (4) is used for carrying auxiliary components, such as a stepping motor controller, a servo motor driver, a power supply and an FPGA (Field Programmable Gate Array) control panel. The pipeline detection robot disclosed by the invention can be used for finding the defects, such as pipeline corrosion, cracks and deformation, carrying out in-service detection on an oil and gas pipeline in a working process, carrying out targeted repair, maintenance and replacement according to a detection result, reducing the maintenance cost and guaranteeing safe and stable operation of the oil and gas pipeline.

A method of optimizing power loads of a power strip is disclosed. The power strip is of the type having single or three phase power input, a plurality of circuit breakers, and a plurality of outlets. The arrangement is such that at least one circuit breaker is associated with at least one outlet. The method includes: obtaining real-time current measurements for each phase of the single or three phase power input of the power strip; obtaining real-time current measurements for each circuit breaker of the plurality of circuit breakers of the power strip; logging the real-time current measurements for each phase of the single or three phase power input and for each circuit breaker of the plurality of circuit breakers; and analyzing the real-time current measurements of the single or three phase power input and the plurality of circuit breakers to determine a preferential order of outlets in which to apply a new load.

The embodiment of the invention provides a CDN back-to-source method, a first server and a system thereof, and relates to the field of network multimedia technology. According to the invention, a dynamic back-to-source address can be flexibly allocated for a server such that the server can flexibly carry out back-to-source operation according to the dynamic back-to-source address. Thus, visit pressure of a CDN system is balanced; system overload is avoided; system resources are utilized reasonably; and performance of the CDN system is improved. The method comprises the following steps: the first server acquires a file request instruction which contains an identifier of a requested file; the first server judges whether a file corresponding to the identifier is stored in the first server; if the file is not stored in the first server, the first server acquires the dynamic back-to-source address; and the first server downloads the file from a second server according to the back-to-source address.

A method is provided for managing load balance in cellular heterogeneous networks. The method comprises: providing a plurality of spectrum carriers for conveying communication signals to/from a macro cell. At least one of the carriers is a shared carrier for conveying communication signals to/from the macro cell and to/from at least one small cell located at the geographical vicinity of the macro cell, and wherein the shared carrier is characterized in that data is the only type of communication signals being conveyed thereat when the cellular network is under congestion. One or more other spectrum carriers are dedicated carriers adapted to essentially convey voice calls, and wherein user terminals are steered away from dedicated carriers to the shared carrier, so that when a data session is initiated for a user terminal camped on the shared carrier, that session will be conveyed one or more of the small cells.

The invention discloses an automatic repeat request (ARQ) window management method which is characterized in that receiving terminals of layer entity are controlled by use of wireless links of confirmation mode; and when the sections of the wireless link control protocol data cell corresponding to the lower boundary of the currently-received window or all the wireless link control protocol data cells are not received successfully and the preset conditions are met, the receiving window are triggered to move continuously. The ARQ window management method overcomes the problems of wireless resource waste and unfairness when the service data unit (SDU) is discarded, and avoids the complexity of sending the move receiving window (Send MRW).