Safety Warning System Research Articles

Research on Safety Monitoring and Warning System Based on Information Fusion for Coking Production

Research on Safety Monitoring and Warning System Based on Information Fusion for Coking Production

A novel CPS-based vehicle safety state evaluation scheme

In order to obtain consecutive vehicle safety states (CVSSs) for a vehicle safety warning system (VSWS), a novel CVSS calculation scheme, tightly coupling the vehicle's cyber system and its physical dynamics (the cyber–physical system (CPS)), has been developed. The proposed scheme objectively divides the dynamic vehicle distance changes into a cyber process and a physical process, defines the notions of minimum safety distance and safety constants and then improves the dynamic vehicle safety distance calculation scheme using the vehicle velocity, acceleration, the velocity difference and other parameters in the consecutive vehicle distance for scenarios of staying in the same lane and changing to a different lane. The simulation results show that the proposed scheme is practical and effective, and can offer advice for VSWS designs.

Research on Vehicle Safety Warning System Based on Data Fusion

Vehicle dynamic safety warning system based on data fusion is researched and designed in this paper. Dynamic information of vehicle, road and environment can be collected in real time. By analyzing and processing these data, active safety warning information is achieved for individual vehicle on different work condition. Security characteristic parameter, road conditions and traffic meteorological information can be detected automatically by the vehicle dynamic security supervision system. Active warning and supervision of comprehensive vehicle safety performance are achieved. The warning system owns the function of data acquisition, operation, wireless data transmission, information distribution and parameter preserving. Warning information is transferred by wireless network in real time. Research work in this paper is applied to road traffic control area. This vehicle warning system is of value to removing incipient fault of running vehicle, improving reliability, rational maintaining and proper inspection.

Research of Long Range Accurate Ranging Technology Based on Ultrasonic Sensor Measurement

In order to meet the requirements of long range obstacle measurement of tower crane safety warning system and accurately estimate time of flight ( TOF ), an ultrasonic long range measurement system is designed and a mathematical model of echo envelope is established in this paper. Experimental data of long range obstacle measurement were collected and analyzed by using traditional threshold method and cross correlation method, the results exposed low accuracy and poor stability problems. According to the obstacle target can be quickly located by echo peak, and echo signal time domain waveform characteristics can be reflected by envelope model method, an improved long range measurement algorithm based on combination of peak method and envelope model method is introduced. Experimental results show higher accuracy and better stability of the improved long range measurement algorithm compared with threshold method and cross correlation method

Current Status of Audit on Board Ferry Services Operating between Labuan and Mainland (Sabah, Sarawak and Brunei)

This study is concerned with evaluating the seaworthiness of ferry services between Labuan and Mainland (Sabah, Sarawak, Brunei) Labuan provides services to 2500 passengers a day Department and the number spikes during festive seasons. The audit tools were adopted from the Marine Department and surveyor list. Nine ferry services were audited for seaworthiness based on ship's structure, machinery, fire safety measures, remote control and warning system, life saving appliances, radio communications, remote control and warning system, safety of navigations and accommodation and escape measures. The audit shows that the ships generally comply to the rules on minimum requirements for life saving appliances (LSA) at medium level except on some boats the Hydrostatics Release Unit (HRU) were wired and this cam prevent the life-raft to self-inflate when submerged in water. It is suggested that standard design for speedboat hull needs to be introduced.

Design for Intersections Safety Pre-Warning System Based on Cooperative Vehicle Infrastructure System

Intersections safety pre-warning system is a kind of traffic safety warning system based on wireless communication technology. The system, using vehicle-road collaborative technologies, provides pre-warning information for car drivers who will arrive at the intersection to avoid accidents, and improve vehicle capacity. In this thesis, based on the selected road-car collaboration technologies, we propose a intersection warning system; then establish a reasonable mathematical model, to ensure the realization of system functions.

The Study on an Automatic Safety Warning System of Mistakenly Entering Charged Interval

In order to avoid the substation staffs mistakenly entering charged interval and resulting in personal safety accidents, combined with the actual situation of substation maintenance work, we designed an automatic warning system. Each component was given the functions and basic principles .The system used a variety of sensors to detect people approaching charged region to improve the reliability of warning. And it can communicate with the maintenance management computers via RS485.

Research on Warehouse Safety Warning System Based on Multi-Sensor Fusion

This paper proposed warehouse safety warning system design and implementation method based on multi-sensor fusion: by collecting monitoring the scene temperature, smoke, infrared and video signal and fusion algorithm for decision-making, greatly reducing false positives and false negative rate of the system, increasing the reliability of the system; using two wireless communication networks, increasing the system suitability and scope of monitoring; using modular design approach, increasing the flexibility and scalability of the system. The results show that the use of security warning systems can use the limited funds to address storage warehouse security risks in the complex security environment, improve the efficiency of storage and security management of funds, save manpower, material and financial resources, and reduce storage costs.

Shoe–Floor Frictional Requirements During Gait after Experiencing an Unexpected Slip

OCCUPATIONAL APPLICATIONS This study provides the first description of gait changes after a slip experience with no threat of additional slippery surfaces. The age-related differences found after experiencing an unexpected slip provide valuable information that should be considered when designing slip paradigms, slip-prevention measures, and the workplace. Specifically, the possibility of generating more than one unexpected slip would allow researchers to further investigate this unique event to prevent falls in the workplace. It is important to understand how frictional requirements and other gait adaptations are impacted by experiencing a slip to ensure that ergonomic interventions, such as shoe–floor design, slip-prevention training, and warning systems, can be effective. Safety warning systems should also be a focus of slip prevention in the workplace, since experiencing a slip alone may not have a long-lasting effect on gait adaptations that could minimize future slip risk, especially in young adults.TECHNICAL ABSTRACT Background: High injury rates and costs associated with occupational falls make them an important prevention target. Purpose: The goal of this study was to examine the impact of experiencing a slip on the peak required coefficient of friction during subsequent gait trials in which subjects were informed that the floor was no longer slippery. Methods: Twenty-seven young (20–31 years) and 25 older adults (50–65 years) walked across a dry floor (baseline dry) then experienced an unexpected slip. Following this, 15 dry trials (recovery dry) and a second unexpected slip were completed. Required coefficient of friction and general spatiotemporal gait parameters were derived during walking on dry surfaces. Results: Young adults initially reduced their peak required coefficient of friction on the left (previously slipped) foot but, after being informed that the floor was no longer slippery, eventually returned to within baseline levels of peak required coefficient of friction and walked with faster gait and longer steps. Young adults exhibited a second slip of similar magnitude to their first slip. Older adults continued walking more cautiously, with a decreased peak required coefficient of friction and other gait adaptations, after experiencing a slip, even though there was no threat of a subsequent slip. With this cautious gait, older adults experienced over a 40% decrease in peak slip velocity in the second slip event. Conclusions: The age-related differences found after experiencing an unexpected slip provide valuable information that should be considered when designing slip paradigms, slip-prevention measures, and the workplace. The possibility of generating more than one unexpected slip would allow researchers to further investigate this unique event to prevent falls in the workplace. It is important to understand how frictional requirements and other gait adaptations are impacted by experiencing a slip, to ensure that ergonomic interventions, such as shoe–floor design, slip-prevention training, and warning systems, can be effective. Safety warning systems should also be a focus of slip prevention in the workplace, since experiencing a slip alone may not have a long-lasting effect on gait adaptations that could minimize future slip risk, especially in young adults.

Take Effective Measures to Promote the Development of Food Safety Science

Food safety concerns people's health, life, even social harmony and stability. Also, it is an important scientific problem of the development of mankind. How could we strengthen our national food security? Firstly, a long-lasting scientific system of food safety should be formed. Only by enhancing the construction of this scientific system, building up the development platform of food safety, improving the science and technology level in this field, carrying out the rapid detection skills of food safety, controlling technology research, forming a joint force of government regulation and public surveillance, we could ensure food security fundamentally. Secondly, we need form a management system with strict legal liability and clear public responsibility, and need establish a food safety warning system and risk assessment system, strengthen the food information construction, improve the international standards of food quality, and constantly increase the level of food safety, so as to control the food pollution, reduce the foodborne diseases, and ensure the consumer’s health.

An Overview on Study of Identification of Driver Behavior Characteristics for Automotive Control

Driver characteristics have been the research focus for automotive control. Study on identification of driver characteristics is provided in this paper in terms of its relevant research directions and key technologies involved. This paper discusses the driver characteristics based on driver’s operation behavior, or the driver behavior characteristics. Following the presentation of the fundamental of the driver behavior characteristics, the key technologies of the driver behavior characteristics are reviewed in detail, including classification and identification methods of the driver behavior characteristics, experimental design and data acquisition, and model adaptation. Moreover, this paper discusses applications of the identification of the driver behavior characteristics which has been applied to the intelligent driver advisory system, the driver safety warning system, and the vehicle dynamics control system. At last, some ideas about the future work are concluded.

Design of Tungsten Tailing Reservoir Safety Monitoring and Warning System Based on Wireless Sensor Networks and LabVIEW

In view of the existing flaws of traditional manual observations, a new type of tailing reservoir safety monitoring and warning system based on ZigBee and LabVIEW was designed. The system chose SoC chip CC2530 as the RF transceiver and designed the low-power wireless sensor networks nodes to collect and process the data of tailing reservoir. It chose ZigBee 2007 as the network communication protocol, and uploaded the data to PC by RS232 serial port. The monitoring and warning interface of PC was completed with LabVIEW. The testing results show that the data transmission of the network is stable and the system is suitable for real-time monitoring and warning of the tungsten tailing reservoir.

Research and Design of Vehicle Dynamic Safety Warning System

Vehicle dynamic safety warning system based on data fusion is researched and designed in this paper. Dynamic information of vehicle, road and environment can be collected in real time. By analyzing and processing these data, active safety warning information is achieved for individual vehicle on different work condition. Safety parameters of vehicle and road condition are detected. Warning information is transferred by wireless network in real time. Research work in this paper is applied to road traffic control area. This vehicle warning system is of value to removing incipient fault of running vehicle, improving reliability, rational maintaining and proper inspection.

Safety Warning System of High Temperature and Pressure Pipeline Based on GSM

An online safety warning system based on FBG sensing elements was developed to prevent the leakage or explosion of the high temperature and pressure pipeline. On the basis of using optical sensing interrogator, a computer monitoring software has been designed to monitor the surface strain of the high temperature pipeline, and this software was written in LabVIEW，including signal analysis, real-time view, data management and related functions. Combining the software and GSM module, a SMS warning and reversing controlling system has been developed into the remote safety warning system.

Preceding Vehicle Visual Detection and Tracking Based on Template and Shadow Feature

As to the vehicle visual detection and tracking problem in IDASWs (Intelligent Driver-Assistance and Safety Warning System), this paper proposed a way of a good effect. Firstly use vehicle’s bottom shadow feature and identified lane result to determine the searching region. Then use template matching algorithm based on vehicle’s tail shape to realize detecting and tracking. Experimental results show that the algorithm can effectively detect and track the preceding vehicle from the video sequence, reaching robust and real-time requirements

The Educational Research of the Elevator Safety Warning Pictures for the Young Children

Abstract The vast majority of children aged 2-12 in China seldom have safety consciousness. They are lack of the risk prevention knowledge. The children shouldn’t be allowed to take the elevator alone. However, in the real life, the young children are very interested in taking elevators as a kind of game. Few people or educational organizations pay close attention to the study of the elevator safety warning system, especially the warning pictures, which are taken as a very efficient way to prevent the potential risks. In this article, China's elevator safety publicity system and the different elevator manufacturers’ designs are introduced. Because of the public utilities, the concept to carry out uniform standards in elevator safety warning is proposed. Propaganda target, picture warning content, warning way, and intensity of color are defined. To enact a consistent standard, the principles of scientific elevator safety warning pictures’ system, combination of universality and particularity and color and pattern and text should be followed.

Laws of strata energy release and corresponding safety warning system in metal mine

The strata deformation in mining area was monitored in Dabaoshan copper-iron mine, and an analytical method of strata energy release was put forward. On the basis of chaotic theory, by reconstructing the phase space for time series data of strata energy release, the saturated embedding dimension and the correlation dimension of the dynamic system were obtained to be 4 and 1.212 8, respectively, and the evolution laws of distances between phase points of strata energy release in the phase space were revealed. With grey theory, a prediction model of strata energy release was set up, the maximum error of which was less than 6.7%. The results show that there are chaotic characters in strata energy release during mining; after reconstructing phase space, the subtle changing characteristics of energy release can be magnified, and the internal rules can be fully demonstrated. According to the laws, a warning system for strata stability in mining area was established to provide a technical safeguard for safe mining.

Railway Track Performance Monitoring and Safety Warning System

To install the continuous welded rail (CWR) on the viaduct, it is necessary to consider the accumulated axial force owing to temperature difference and the additional force of the rail exerted by the track-bridge expansion as a result of temperature difference, the so-called track–bridge interaction. This paper used A-thermal fiber bragg grating (FBG) sensors which do not need the temperature compensation, and electronic sensors as monitoring instruments to detect performance changes in CWR axial force. These optical fiber sensors coupled with the developed track axial force calculation software and monitoring platforms calculate the axial force distribution along the track to be monitored. To better understand the influence of the change in the bridge’s structure expansion and the change in concrete slab strain on track axial forces, sensors are set up at bridge expansion joints (EJs), rail ends, and concrete slab beds. Monitoring results show that optic fiber sensors provide sensitive, clear, and stable signals. They are also durable and appropriate for long-term monitoring, providing a complete track safety warning system.

Inside the black box: current policies and concerns with the United States Food and Drug Administrationʼs highest drug safety warning system

To evaluate the United States Food and Drug Administration use of the black-box warning system to promote drug safety and to examine the droperidol black-box warning as a case study. Scientific studies report that there is no basis to issue a black-box warning for perioperative administration of droperidol for postoperative nausea and vomiting on the basis of the potential of adverse cardiac events (prolongation of the QT interval and/or development of torsades de pointes). Rather than relying on well conducted clinical investigations, the Food and Drug Administration subjectively issued a black-box warning to droperidol, which effectively removed droperidol from clinical practice for the indication of postoperative nausea and vomiting. Newer data suggest that the incidence of prolongation of the QT interval and the occurrence of torsades de pointes is similar to more expensive alternative medications used to treat postoperative nausea and vomiting.

Time Domain Reflectometry Automatic Bridge Scour Measurement System: Principles and Potentials

Bridge scour is a major factor contributing to the failures of highway bridges constructed over waterways. During flood events, sediments can be washed away and bridge substructures (piers and abutments) are left inadequately supported. Field monitoring of bridge sour process is necessary to study the scour mechanism, to develop scour-resistant design of bridge piers and abutments, to implement effective scour countermeasures, and to deploy safety warning systems. The current instruments are not completely satisfactory in providing real-time monitoring data during critical flood events. This study introduces the development of an automatic scour monitoring system using time domain reflectometry (TDR) principle. It presents the principles and system design of the TDR sediment scour monitoring system. An analyses algorithm for scour signals has been developed. It was found to be robust and can be implemented to automate scour signal interpretation. Simulated experiments were conducted to validate the performance of the scour monitoring system prototype. The results showed that this TDR technology can accurately measure the scour depth. Besides, the properties of the sediments, such as the porosity and density can be estimated with reasonable accuracy. At the end of the paper, a few important issues associated with field deployments of TDR scour monitoring system are discussed.