50results about How to "Realize safety warning" patented technology

An electrical fire warning information processing method comprises the steps that monitoring data sent by a monitor are received; parameters monitored by the monitor, sampling time and monitor identification are respectively stored in corresponding data packs in an original database in a database; the monitoring data are called from the initial database and analyzed, temperature analyzing results and electrical analyzing results in a sampling cycle of electric equipment are obtained; the temperature analyzing results and the electrical analyzing results are respectively compared with the electrical safety data of the electric equipment, whether temperature and electric power of the electric equipment are abnormal is determined, a warning report is generated and is stored in a warming report database, the warning report is displayed through a displayer; when electric power parameters and / or temperature parameters of the electric equipment are determined to be abnormal, an electrical fire warning information processing system carries out warning through an Internet of things. The operation states of the electric equipment at monitoring points are monitored in real time, fire hidden hazards of the electric equipment are warned timely, and safety warning of the electric equipment in a large range is achieved.

The invention provides a method for early warning of dangerous sources of a coal mine, and belongs to early warning methods for coal mines. Identification of the dangerous sources, evaluation of risk levels of the dangerous sources and monitoring of the dangerous sources are carried out through a coal mine dangerous source early warning system; dangerous source information which comes from different places, is of different levels and is not reviewed or is not qualified during review are dynamically broadcasted with an electronic mine figure as a background at a computer terminal in a local area network, a coal mine dispatching room and a wellhead large-size screen terminal, wherein the dangerous sources of different early warning levels are expressed with different colors; places having a great influence on coal mine safety production are provided with a wireless sensor network, information of the dangerous sources of the places are monitored in real time, related functional offices arrange to rectify and reform dangerous source specific information which happens but is not found or which is found but cannot be typed in a system timely and manually or which cannot be timely displayed on terminal equipment of the dispatching room or terminal equipment of a wellhead large-size screen, and coal mine safety production is guaranteed. The method is used for coal mine safety management and achieves look-ahead and timely precontrol and management for hidden dangers and accidents happening in the coal mine possibly.

The invention discloses an ultra-high-precision freezing detecting device and a real-time freezing thickness detecting method thereof. The ultra-high-precision freezing detecting device comprises a wideband light source, a spectrum analyzer, an optical fiber coupler, a film-coated optical fiber, an optical fiber polarization controller, an optical switch and optical fiber probes. The wideband light source and the spectrum analyzer are connected to a port a and a port b which are located on the same side of the optical fiber coupler through optical fibers respectively. The film-coated optical fiber is installed on the optical fiber polarization controller and connected to a port c located on the other side of the optical fiber coupler. The input end of the optical switch is connected to a port d of the optical fiber coupler and the output end of the optical switch is connected with the optical fiber probes. The ultra-high-precision freezing detecting device can realize ultra-high-precision detection of a micrometer-level-thickness ice layer on the surface of an object and accurately forecast the freezing rate. In addition, the device is high in integration degree, low in cost, capable of realizing distributed real-time detection, particularly suitable for airplane freezing detection, capable of realizing safety early warning and capable of being widely applied to other fields in need of freezing condition detection or monitoring.