184 results about "Safety indicators" patented technology

A safety indicator monitors environment conditions detrimental to humans e.g., hazardous gases, air pollutants, low oxygen, radiation levels of EMF or RF and microwave, temperature, humidity and air pressure retaining a three month history to upload to a PC via infra red data interface or phone link. Contaminants are analyzed and compared to stored profiles to determine its classification and notify user of an adversity by stored voice messages from, via alarm tones and associated flashing LED, via vibrator for silent operation or via LCD. Environmental radiation sources are monitored and auto-scaled. Instantaneous radiation exposure level and exposure duration data are stored for later readout as a detector and dosimeter. Scans for EMF allow detection with auto scaling of radiation levels and exposure durations are stored for subsequent readout. Electronic bugs can be found with a high sensitivity EMF range setting. Ambient temperature measurements or humidity and barometric pressure can be made over time to predict weather changes. A PCS RF link provides wireless remote communications in a first responder military use by upload of alarm conditions, field measurements and with download of command instructions. The link supports reception of telemetry data for real time remote monitoring of personnel via the wrist band for blood pressure, temperature, pulse rate and blood oxygen levels are transmitted. Commercial uses include remote environmental data collection and employee assignment tasking. GPS locates personnel and reporting coordinates associated with alarm occurrences and associated environmental measurements.

The invention discloses a system and method for initializing a safety indicator of a credible user interface, and relates to the field of mobile intelligent terminals. The system comprises a TSM server, an application store and a mobile intelligent terminal. The mobile intelligent terminal comprises a mobile intelligent terminal operating system and a TEE. The mobile intelligent terminal operating system comprises a client side application module and a TEE client side drive module. The TEE provides a safe operation environment isolated from the mobile intelligent terminal operating system, the interior of the TEE is logically divided into a plurality of safety domains, and mutual isolation and independence of credible applications are guaranteed. Each safety domain is provided with a safety domain management module and a credible application module, and the TEE provides the safe operation environment for the safety domain management modules and the credible application modules. According to the system and method, individualization of the safety indicator in the credible UI provided for the credible application modules can be safely achieved, display credibility of the safety indicator is effectively improved, and the risk that the safety indicator is attacked and intercepted by malicious software is reduced.

The invention relates to an intelligent monitoring system of a user transformer substation. The system comprises monitoring equipment and an electric energy supervision terminal central data processor which are communicated mutually through a network, wherein the monitoring equipment is used for collecting electric energy index parameter data of a transformer substation and transmitting the electric energy index parameter data to the electric energy supervision terminal central data processor; and the electric energy index parameter data received by the electric energy supervision terminal central data processor is compared with a safety index, the electric energy index parameter data which does not conform to the safety index is intelligently identified by calling an expert database, andwhether an alarm module is started and alarm information is sent is determined by the expert database. The intelligent monitoring system of the user transformer substation in the invention can accurately provide the alarm information through the intelligent identification of the expert database, thus reducing the false alarm probability and improving the management efficiency of the transformer substation.

The invention provides a comprehensive evaluation index system of a ship routing scheme and a combined evaluation method thereof. The comprehensive evaluation index system comprises a quantitative index and a qualitative index, wherein, the quantitative index comprises an efficiency index and the qualitative index comprises a safety index and a performance index. The combined evaluation method comprises the following steps: determining a qualitative evaluation index value by a group decision making method; determining a quantitative index value of the scheme by an entropy method and a fuzzy analytic hierarchy process (FAHP); and realizing ordering and optimization of the scheme based on a technique for order preference by similarity to ideal solution (TOPSIS). Compared with the traditional comprehensive evaluation index system of the ship routing scheme and the evaluation method thereof, the comprehensive evaluation index system and the evaluation method thereof of the invention increase analysis evaluation of the quantitative index, thus the index system is more complete; and by combination of quantitative evaluation and qualitative evaluation, expert knowledge is integrated into the decision-making process preferably, thus being more practical and more flexible.

An evaluation method for evaluating safety of a battery having an electrode group including a positive electrode plate, a negative electrode plate and a separator inserted between said electrode plates. The method includes the steps of charging the battery to a predetermined voltage; incorporating conductive foreign matter into the charged battery such that the conductive foreign matter is in contact with the positive electrode plate, and not in contact with the negative electrode plate; immersing said battery into which the conductive foreign matter has been incorporated in an electrolyte to dissolve and deposit the conductive foreign matter, thereby causing an internal short circuit to occur in the battery; and evaluating a thermal behavior of the battery in which the internal short circuit has occurred, and outputting results of the evaluation as safety indices.

This invention relates to one extensive safety identification method based on 802. 1X and its method, which adopts identification and monitor idea to need to measure the operation system, virus killing software, customer end identification program and uses the measurement result as identification message with only customer end system meet standard through user codes testing for legal user; if not updating the system.

The utility model relates to a integration management system for coal mine underground safety, comprising a Web network server, a database server, a management terminal, a coal mine underground integrated management work station, a handhold device module and a user terminal; wherein a plurality of underground field staffs are equipped with the handhold device module. The handhold device module is communicated mutually with the coal mine underground integrated management work station on the ground to realize data upload and download. The work station is communicated mutually with the database server through network. The database server saves basic information of the management system and is managed by the management terminal. The management terminal receives underground safety inspection information transmitted by the work station, saves the underground safety inspection information to the database server and transmits the data to the work station to realize the download of a plurality of safety inspection commands. The user terminal accesses to the network server through the network to realize information querying and tracking. The utility model enables the safety inspection staffs to inspect and evaluate various safety indexes at real underground construction site in order to strengthen management standard, put an end to management loopholes and enhance underground safety index.

The invention provides a path planning device and method for an unmanned underwater vehicle based on a detection threat domain, which solve a path planning problem of a UUV (Unmanned Underwater Vehicle) in a terrain obstacle environment according to a path planning algorithm based on the detection threat domain, and can satisfy kinematic constraints, collision avoidance constraints and concealment detection constraints of the UUV. A path from a starting point to an end point of the movement is planned with the given initial position, the end point position, maximum curvature constraints, the path discrete point resolution, concealment safety indexes and the like being given. The planned path is smooth and can be guided continuously, sailing and turning curvature constraints, the concealment safety indexes and the like of the UUV are satisfied, and the UUV is enabled to reach the end point safely in a concealed manner with the shortest time. According to the invention, a detection threat theory and a geometric theory of the sailing and turning curvature constraints are applied to the field of path planning for the UUV for the first time, and path planning can be realized quickly. The path planning method is simple, reliable, easy to implement, small in calculation amount and good in real-time performance, can meet path planning requirements, improves the practicability of path planning, and has positive significance for development of the underwater path planning field in the future.

A handle has opposed ends and a central extent. A grip rotationally receives the central extent of the handle. An adjustment wheel is secured to each end of the handle. A side cover is fixedly secured to each end of the grip. A dowel disk is on the handle adjacent to one side cover with fingers and spaces. A plurality of cam bits are supported on the handle. A safety lock is within the side cover adjacent to the dowel disk. The safety lock has a first end extent and a second end extent with a radial recess and a central extent with an axial projection. A coil spring within the radial recess urges the safety lock radially outwardly. A safety indicator may be seen on one side cover that changes from red to green as the weight selection wheel is turned, indication proper weight selection when green and a potential unsafe condition when red.

A wireless position sensing device is provided for monitoring railyard equipment status. The device comprises a gravity sensing mechanism for sensing an angular displacement with respect to a substantially vertical line, and for generating a displacement signal upon sensing a change in angular displacement exceeding approximately 40 degrees. A processing mechanism, operatively coupled to the gravity sensing mechanism, receives the displacement signal. A radio frequency transmitter, responsive to the processing mechanism, transmits a data signal indicative of the angular displacement. The processing mechanism is programmed to activate the radio frequency transmitter upon receipt of the displacement signal. The gravity sensing mechanism is affixed, attached, or mechanically coupled to railyard equipment comprising at least one of a manually operated rail switch or a safety indicator.

The invention relates to a determination method for power grid safety aggregative indicators. The method comprises the following steps: selecting 15 power grid safety basic indicators according to an actual power grid research result; determining a calculation formula by combining indicator constitutive property, indicator adaptability and dimension consistency; calculating initial weight of the 15 safety basic indicators under the aggregative indicators by adopting an analytic hierarchy process; revising the obtained weight of the step (2) by using a variable weight penalty function; calculating the power grid safety aggregative indicators by using the final weight; carrying out safety grade division and exhibition on a power grid operation state; drawing a power grid safety indicator movement track map. According to the determination method, the power grid safety basic indicators are screened in view of engineering functionization and the calculation formula is designed; the variable weight penalty function is introduced on the basis of obtaining all the weights by the analytic hierarchy process to be used for revising heavy-load or out-of-limit indicator weights, and current and future situations of a power grid are determined; a direct power grid situation monitoring means is provided for schedulers by the power grid safety indicator movement track map.

The invention relates to an indicator system generation method based on an entropy weight method. Based on the safety management indicator system of the chemical enterprise, the method researches reasonable improvement and updating on the basis of the original indicator system to construct a new indicator system. The basis of improvement is that the historical chemical accident cases act as the analysis data according to the irrationality of the data reverse analysis indicator weight. The entropy weight method is not the algorithm of a large number of sample data assignment, the entropy weightmethod is adopted to evaluate the sample quality to form the sample weight, the weight of the safety indicator system is reversely analyzed and calculated on the basis of the data and the indicator weight is appropriately adjusted and updated. Reasonable and necessary modification is made according to the actual situation so that continuous improvement of enterprise safety supervision and safetyevaluation can be promoted and the risk avoidance can be better performed.

A support tensor machine based neutral point grounding mode decision method and system adopts a support tensor machine method Based on three indexes, i.e., the power supply reliability index, safety index, and economical efficiency index, influences of different neutral point grounding modes are analyzed by employing the support tensor machine method to finally obtain a neutral point grounding mode capable of maximizing power supply reliability of a distribution network.

The invention provides a novel bridge safety index detector and relates to the technical field of safety detection. A monitoring field station is connected with a monitoring data center through a GPRS wireless communication transmission device. The monitoring field station comprises a water flow acquisition sensor, a support vibration string type sensor, a voltage and current sensor, a pulse sensor and a single chip microcomputer. The water flow acquisition sensor, the support vibration string type sensor, the voltage and current sensor and the pulse sensor are connected with the single chip microcomputer through data lines. The novel bridge safety index detector has a simple structure and can rapidly and automatically acquire acquisition, storage, transmission and management data in real time, the safety status of a bridge can be observed at any time, unnecessary negligence is avoided, security risks are reduced, risk and economic loss are reduced, and the device has a profound significance to social stability.

The “Chew Toy Safety Indicator” is a safety mechanism design for pet chew toys that is distinguished by having a green (color similar to the green in a traffic light) outer wear layer and a red (color similar to the red in a traffic light) inner layer. If the green wear layer is compromised to where the red can been seen from the outside of the chew toy, this indicates to the pet owner that the pet chew toy design is no longer safe for the pet to use. Using the well-known color-coding indicator system where “green means go” and “red means stop” should be the most recognizable and safest approach to chew toy safety. This “Chew Toy Safety Indicator” when combined with the toy's design for indestructibility should lesson or eliminate the possibility of blockages that historically have hurt and in worst case scenarios kill pets.

The invention discloses a comprehensive optimization method for economy and static security of a power system containing a UPFC. The security of the system is superior to the operation economy of thesystem, so that the optimization process of the method is divided into inner and outer layers, the operation cost of the system is adopted by the outer layer as an objective function, an static security index of the system is adopted by the inner layer as the objective function, and the inner and outer objective functions are connected in a manner of adding a penalty term. N-1 static security constrains of the system are considered; and the UPFC has multiple power flow control modes and different modes have different responses when a security failure of the system occurs, so that selection ofthe control modes of the UPFC is throughout the whole optimization process. Solving is carried out by adopting a particle swarm algorithm, objective function values of the inner layer under differentcontrol modes of the UPFC are calculated for each generation of individuals and the optimal control parameter and control mode of the UPFC are selected, so that the calculation result shows that the operation economy and the static security of the system can be obviously improved by the method.

The invention discloses an urban rail power supply system driving arrangement decision-making system and method based on PSCADA real-time data. The system includes a power supply system topology analysis unit, a traction calculation unit, a running chart generation unit and an AC/DC power flow calculation unit. The method is characterized in that firstly, real-time data of a power monitoring system PSCADA is read; secondly, a topology analysis interface, a traction calculation interface, a running chart generation interface and an AC/DC power flow calculation interface are sequentially started, power flow distribution across the line is calculated, statistics of related indicators is performed, if the safety indicator threshold is exceeded, running chart parameters are adjusted, the progress returns to the step of starting the traction calculation interface, otherwise, current system running conditions and current running chart parameters are recorded; and lastly, the running conditions of the system are adjusted by changing opening and closing of switches, including main substation disconnection and traction substation disconnection, and the above steps are repeated. The system isadvantaged in that the system can calculate the maximum driving arrangement capacity of an urban rail power supply system under emergency conditions and provide technical support for driving scheduling under emergency conditions.