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206 results about "Outage detection" patented technology

SRAM type FPGA single particle irradiation test system and method

ActiveCN103744014ARefresh is convenient and reliableReliably flip dataElectrical testingCommunication interfacePower flow
The invention provides an SRAM type FPGA single particle irradiation test system and method. The test system comprises a host computer, a current monitoring acquisition plate and a test plate. The current monitoring acquisition plate comprises a current monitoring acquisition FPGA, a current acquisition unit, a power supply module and a first communication interface; the test plate comprises a control processing FPGA, a refreshing chip, an SRAM, a configuration PROM, a storage PROM, a second communication interface and a detected FPGA; the host computer is in charge of flow control and data processing; the current monitoring acquisition plate is in charge of power-on and power-off of the test plate and monitoring and testing of FPGA currents; and the test plate is in charge of processing a command sent by the host computer and performing work such as single particle overturning, single particle function interruption detection and the like. According to the invention, the refreshing chip is utilized to replace some of the reconfiguration modules in a conventional irradiation test system so that a detected chip can be more conveniently and reliably refreshed; and the system and method provided by the invention can realize static and dynamic overturning testing on a trigger, and more reliable trigger overturning data can be obtained by combing the two methods.
Owner:BEIJING MICROELECTRONICS TECH INST +1

3D printer capable of printing continuously at outage and method for controlling 3D printer to continue printing at outage

InactiveCN103921446ASimple structureAvoid reprintingComputer moduleClosed loop
The invention relates to a 3D printer capable of printing continuously at an outage and a method for controlling the 3D printer to continue printing at the outage and belongs to the technical field of 3D printing. The 3D printer comprises a power module capable of storing electric energy, an outage detection module used for detecting the power supply state of an external power source, and a control module which controls all components of the printer to switch between the power supply state and the outage state. By means of the method, the printer can use the stored electric energy to record the work state at the outage, and all the components are set to be in the outage state; when power supply is recovered, the printer can be controlled to return to the previous state and continue last work; as a result, reprinting is avoided, consumable items are effectively saved, and the success rate of printing is increased substantially; furthermore, closed-loop control is achieved in cooperation with a displacement detection module, and the accuracy of continuous printing at the outage is further improved. Moreover, the 3D printer capable of printing continuously at the outage is simple in structure, the method for controlling the 3D printer to continue printing at the outage is easy and convenient to implement, and the application range is rather wide.
Owner:PANOWIN TECH

Vehicle-mounted earthquake emergency handling device for high-speed railway

The invention relates to a vehicle-mounted earthquake emergency handling device for a high-speed railway. The vehicle-mounted earthquake emergency handling device for the high-speed railway comprises a GSM-R communication unit, a catenary outage detection unit and a control unit, wherein the GSM-R communication unit is used for receiving earthquake alarm information, and sending the earthquake alarm information to the control unit, the catenary outage detection unit is used for detecting whether a catenary is in the outage state or not, and sending the detection result to the control unit, and the control unit is connected with an emergency braking loop installed on a train braking system in a hardwired mode, and is used for controlling the emergency braking loop to carry out emergency braking when necessary according to the information sent by the GSM-R communication unit and the catenary outage detection unit. According to the vehicle-mounted earthquake emergency handling device for the high-speed railway, early-warning information sent by an earthquake early-warning system is received through a GSM-R wireless communication system, the power supply state of the catenary is detected in real time in an online mode, the corresponding train control mode is adopted according to the received early-warning information and the catenary outage state, and thus reliability and timeliness of earthquake emergency handling are effectively improved.
Owner:CHINA RAILWAYS CORPORATION +3

Commercial-break detection device

In a commercial-break detection device (7) for the detection of commercial-break information (WBI) present in picture information (RI) of a television signal (FS), having detection means (8) arranged to receive the television signal (FS) and adapted to detect black-frame information (SBI) in the picture information (BI) of the television signal (FS), and having memory means (9) for the storage of black-frame lime information (SZI) for each one of at least two units of detected black-frame information (SBI), and having analysis means (10) for analyzing the stored black-frame time information (SZI) and for determining commercial-break position information (WP1, WP2) identifying the commercial-break information (WBI) in the picture information (BI), the detection means (8) are now adapted to detect a fade-out (FO), in which fade-out (FO) a luminance signal (Y) of the picture information (BI) decreases during a fade-out time (FT) until the picture information (BI) is formed by the black-frame information (SBI), and the detection means (8) are adapted to determine fade black-frame time information (FI) and edge black-frame time information (KI), the fade black-frame time information (FI) identifying black-frame information (SBI) which is directly preceded by a fade-out (FO), and the edge black-frame time information (KI) identifying black-frame information (SBI) which is not directly preceded by a fade-out (FO), and the analysis means (10) are adapted to separately analyze the stored fade black-frame time information (FI) and the stored edge black-frame time information (KI), in order to determine the commercial-break position information (WP1, WP2).
Owner:KONINKLIJKE PHILIPS ELECTRONICS NV

Extremely fast polling method for determining the presence of individual electric meters on a power line

A “super-fast” polling method for electrical meters for outage detection. In response to a query, a large group of electric meters (M) all simultaneously transmit reply signals over an electrical distribution network using TWACS®. The signals are separated by an inbound detector (IB) at a receiving end of the network. This allows a very large number of meters to be polled in a very short period of time to determine whether or not an outage has occurred at the location of each meter. Each meter transmits a bit pattern, and bit patterns are designed so a group of meter units can transmit their patterns simultaneously over a power line (L) to the inbound detector. The presence or absence of a bit pattern in the received signal conveys the presence or absence of the associated meter in the system. The ability to transmit multiple bit patterns in parallel requires that they be orthogonal to each other. The Hadamard matrices are a class of matrices whose rows could be used as a set of bit patterns. In addition to super-fast polling for outage detection, the method of the invention can also be used to poll meters for the presence of an alarm condition, as well as for both outage detection and an alarm condition.
Owner:ACLARA TECH LLC

Warm backup multi-format switching system and method for video conference

The invention discloses a warm backup multi-format switching system and a warm backup multi-format switching method for a video conference, the warm backup multi-format switching system including a video signal detection module, an audio signal AD module, a video and audio switching module, a video signal processing module, an audio signal DA module and a signal direct connection module, wherein the video signal detection module identifies video signals sent by a master video conference terminal or a standby video conference terminal and detects abnormality and break-off of the video signals, and converts the video signals into signals with unified format; the video and audio switching module is used for achieving seamless switching of video and audio digital signals output by the master video conference terminal or the standby video conference terminal, when meeting switching conditions. The warm backup multi-format switching system and method for the video conference, the warm backup mode is adopted for preventing that the video conference from being forcibly broken off by faults of conference terminals, the troubleshooting difficulty of fault points is reduced; meanwhile, the consistency of the video signals is ensured by the seamless switching effect, and automatic switching between the master signals and the standby signals can be achieved without being noticed by conventioneers.
Owner:大连科迪视频技术有限公司
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