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1.
Cienc. Trab ; 20(63): 169-177, dic. 2018. tab
Artigo em Espanhol | LILACS | ID: biblio-984170

RESUMO

Resumen: En el marco del Sistema Nacional de Gestión de Riesgos de Desastres, el Estado Peruano ha establecido la necesidad de desarrollar la Gestión de la Continuidad Operativa en todos los niveles de gobierno. A partir de ello, nace la obligación que las entidades públicas deban elaborar Planes de Continuidad Operativa; sin embargo, no se cuenta con referencias documentarias ni técnicas que permitan servir de información de entrada para dichos planes. Actualmente, existe abundante normativa técnicas e investigaciones que desarrollan la continuidad operativa (continuidad de negocio) bajo el enfoque de las tecnologías de la información. La presente investigación consistió en la revisión de documentación normativa, técnica y de benchmark (modelos empresariales) con el propósito de diseñar la estructura modelo que debería comprender un Plan de Continuidad Operativa. Dicha estructura modelo fue implementada en una empresa de ser vicios de saneamiento, permitiéndole abordar las amenazas de riesgo operativo en los macroprocesos y procesos de Nivel 1 considerados como prioritarios.


Abstract: According to the National Disaster Risk Management System, the Peruvian State has established the need to develop the Business Continuity Management at all levels of government. From this, the obligation that the public entities must elaborate Business Continuity Plans is born; however, there are no documentary references or techniques that can serve as input information for these plans. Currently, there are abundant technical regulations and investiga tions that develop business continuity under the focus of informa tion technologies. The present investigation consisted in the revision of normative, technical and benchmark documentation with the purpose of design ing the model structure that should comprise an Operational Continuity Plan. This model structure was implemented in a public water company, allowing it to address the operational risk threats in the macro processes and processes Level 1.


Assuntos
Gestão de Riscos/organização & administração , Abastecimento de Água , Setor Público , Empresas de Saneamento , Planejamento em Desastres/organização & administração , Peru , Comércio , Benchmarking , Planejamento em Desastres , Governo
2.
Sensors (Basel) ; 18(7)2018 Jul 09.
Artigo em Inglês | MEDLINE | ID: mdl-29987220

RESUMO

An intelligent vehicle must face a wide variety of situations ranging from safe and comfortable to more aggressive ones. Smooth maneuvers are adequately addressed by means of linear control, whereas more aggressive maneuvers are tackled by nonlinear techniques. Likewise, there exist intermediate scenarios where the required responses are smooth but constrained in some way (rise time, settling time, overshoot). Due to the existence of the fundamental linear limitations, which impose restrictions on the attainable time-domain and frequency-domain performance, linear systems cannot provide smoothness while operating in compliance with the previous restrictions. For this reason, this article aims to explore the effects of reset control on the alleviation of these limitations for a lane change maneuver under a set of demanding design conditions to guarantee a suitable ride quality and a swift response. To this end, several reset strategies are considered, determining the best reset condition to apply as well as the magnitude thereto. Concerning the reset condition that triggers the reset action, three strategies are considered: zero crossing of the controller input, fixed reset band and variable reset band. As far as the magnitude of the reset action is concerned, a full-reset technique is compared to a Lyapunov-based error minimization method to calculate the optimal reset percentage. The base linear controller subject to the reset action is searched via genetic algorithms. The proposed controllers are validated by means of CarSim.

3.
Cienc. Trab ; 19(60): 166-170, dic. 2017. tab
Artigo em Espanhol | LILACS | ID: biblio-890087

RESUMO

RESUMEN: El método CoPsoQ PSQCAT Versión Corta permite conocer la percep ción de los trabajadores sobre las dimensiones de riesgos psicosocia- les, a través del uso de un cuestionario estandarizado; sin embargo, es necesario triangular las fuentes de información para determinar los factores de riesgo psicosocial que afectan a los trabajadores de una organización. La investigación descriptiva-transversal tuvo por objetivo examinar y ampliar los resultados obtenidos provenientes del método CoPsoQ PSQCAT Versión Corta, complementándolo con la técnica de grupos focales. Los resultados obtenidos al introducir un grupo focal, después de aplicar el proceso de intervención del método CoPsoQ PSQCAT Versión Corta en una empresa de menos de 25 trabajadores, fueron la validación de la clasificación de 11 dimensiones de riesgo psico- social, la clasificación de 2 dimensiones con resultados no conclu yentes, y la modificación de la clasificación de otras 2 dimensiones. Se concluyó que la aplicación de un grupo focal permitió profundi zar en el análisis de la información obtenida a partir del cuestionario del método CoPsoQ PSQCAT Versión Corta para la identificación y evaluación de los factores de riesgo psicosocial.


ABSTRACT: The CoPsoQ PSQCAT method's (Short Version) allows knowing the perception of workers about the dimensions of psychosocial risks, through the use of a standardized questionnaire; however, it is nec essary to triangulate the sources of information to determine the psychosocial risk factors that affect the workers of an organization. The objective of the descriptive - transversal research was to exam ine and extend the results obtained from the CoPsoQ PSQCAT method's (Short Version), complementing it with focus group. The results obtained by introducing a focus group, after applying the process of intervention of the CoPsoQ PSQCAT method's in a com pany with fewer than 25 workers, method allowed to validate the classification of 11 dimensions of psychosocial risk, in addition to classify 2-dimensional with inconclusive results and modify rated 2 other dimensions. It was concluded that the application of a focus group allowed to deepen the analysis of the information obtained from the question naire of the CoPsoQ PSQCAT method's (Short Version) for the iden tification and evaluation of psychosocial risk factors.


Assuntos
Humanos , Psicologia Industrial , Medição de Risco , Categorias de Trabalhadores/psicologia , Percepção , Psicometria/métodos , Condições de Trabalho , Inquéritos e Questionários , Fatores de Risco , Saúde Ocupacional , Local de Trabalho/psicologia , Grupos Focais , Emprego/psicologia
4.
Sensors (Basel) ; 17(2)2017 Feb 08.
Artigo em Inglês | MEDLINE | ID: mdl-28208704

RESUMO

This paper investigates the dynamic selection of an appropriate threshold for basic Send-on-Delta (SoD) sampling strategies, given an available transmission rate to reduce the signal tracking-error. The paper formulates the error-reduction principle and proposes an algorithm that calculates, in real time, the amplitude threshold value (also called delta value) for a desired mean transmission rate. The algorithm is implemented to be computed in a Send-on-Delta driver and is tested with three signals that match the step response of a second order control system. Comparison results with a conformant periodic transmission strategy reveals that it improves deeply the tracking-error while maintaining the desired average throughput.

5.
Sensors (Basel) ; 16(5)2016 Apr 26.
Artigo em Inglês | MEDLINE | ID: mdl-27128914

RESUMO

We describe the application of a generic stability framework for a teleoperation system under time-varying delay conditions, as addressed in a previous work, to a scaled-four-channel (γ-4C) control scheme. Described is how varying delays are dealt with by means of dynamic encapsulation, giving rise to mu-test conditions for robust stability and offering an appealing frequency technique to deal with the stability robustness of the architecture. We discuss ideal transparency problems and we adapt classical solutions so that controllers are proper, without single or double differentiators, and thus avoid the negative effects of noise. The control scheme was fine-tuned and tested for complete stability to zero of the whole state, while seeking a practical solution to the trade-off between stability and transparency in the Internet-based teleoperation. These ideas were tested on an Internet-based application with two Omni devices at remote laboratory locations via simulations and real remote experiments that achieved robust stability, while performing well in terms of position synchronization and force transparency.

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