scholarly journals A Study on Development of Engine Fault Diagnostic System

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Hwa-seon Kim ◽  
Seong-jin Jang ◽  
Jong-wook Jang

This study implemented a mobile diagnosing system that provides user-centered interfaces for more precisely estimating and diagnosing engine conditions through communications with the self-developed ECU only for industrial CRDI engine use. For the implemented system, a new protocol was designed and applied based on OBD-II standard to receive engine data values of the developed ECU. The designed protocol consists of a message structure to request data transmission from a smartphone to ECU and a response message structure for ECU to send data to a smartphone. It transmits 31 pieces of engine condition information simultaneously and sends the trouble diagnostic code. Because the diagnostic system enables real-time communication through modules, the engine condition information can be checked at any time. Thus, because when troubles take place on the engine, users can check them right away, quick response and resolution are possible, and stable system management can be expected.

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3305
Author(s):  
Katarzyna Pietrucha-Urbanik ◽  
Barbara Tchórzewska-Cieślak ◽  
Mohamed Eid

Initiated by a case study to assess the effectiveness of the modernisation actions undertaken in a water supply system, some R&D activities were conducted to construct a global predictive model, based on the available operational failure and recovery data. The available operational data, regarding the water supply system, are the pipes’ diameter, failure modes, materials, functional conditions, seasonality, and the number of failures and time-to-recover intervals. The operational data are provided by the water company responsible of the supply system. A predictive global model is proposed based on the output of the operational data statistical assessment. It should assess the expected effectiveness of decisions taken in support of the modernisation and the extension plan.


2017 ◽  
Vol 41 (20) ◽  
pp. 11955-11961 ◽  
Author(s):  
Haoyuan Wang ◽  
Xia Kong ◽  
Shuai Zhao ◽  
Junshi Wu ◽  
Xiyou Li ◽  
...  

High-sensitive, quick-response room-temperature sensor to NO2 and NH3 is developed, based on QLS film of a new amphiphilic tris(phthalocyaninato) europium.


Author(s):  
Alejandro Rodríguez ◽  
Alexander Grushin ◽  
James A. Reggia

Drawing inspiration from social interactions in nature, swarm intelligence has presented a promising approach to the design of complex systems consisting of numerous, simple parts, to solve a wide variety of problems. Swarm intelligence systems involve highly parallel computations across space, based heavily on the emergence of global behavior through local interactions of components. This has a disadvantage as the desired behavior of a system becomes hard to predict or design. Here we describe how to provide greater control over swarm intelligence systems, and potentially more useful goal-oriented behavior, by introducing hierarchical controllers in the components. This allows each particle-like controller to extend its reactive behavior in a more goal-oriented style, while keeping the locality of the interactions. We present three systems designed using this approach: a competitive foraging system, a system for the collective transport and distribution of goods, and a self-assembly system capable of creating complex 3D structures. Our results show that it is possible to guide the self-organization process at different levels of the designated task, suggesting that self-organizing behavior may be extensible to support problem solving in various contexts.


Author(s):  
Sami Beydeda

Development of a software system from existing components can surely have various benefits, but can also entail a series of problems. One type of problem is caused by a limited exchange of information between the developer and user of a component. A limited exchange and thereby a lack of information can have various consequences, among them the requirement to test a component prior to its integration into a software system. A lack of information cannot only make testing prior to integration necessary; it can also complicate this task. However, difficulties in testing can be avoided if certain provisions to increase testability are taken beforehand. This article briefly describes a new form of improving testability of, particularly commercial, components, the self-testing COTS components (STECC) strategy and explains in detail the STECC framework, which implements the necessary technical architecture to augment Java components with self-testability.


2012 ◽  
Vol 268-270 ◽  
pp. 1578-1582
Author(s):  
Chi Zhang ◽  
Xiao Guang Wu ◽  
Cheng Jun Zhang

In order to realize point-light-source and hurdle lamp LED displays system, a kind of LED display screen controller design based on FPGA and STM32 is introduced by this paper. This design can quickly and easily receive display the data from USB, Ethernet and SD card interfaces through the STM32 processor, and use FPGA to realize data transmission throughput big operation of stable display by double RAM Ping-Pong operation This paper gives drive unit timing for TM1809 series LED drive chip as typical case. This design has applied to LED display controller with stability of reading data and excellent performance.


2017 ◽  
Vol 35 (2) ◽  
pp. 3-24 ◽  
Author(s):  
Nedim Karakayali ◽  
Burc Kostem ◽  
Idil Galip

The article brings to light the use of recommender systems as technologies of the self, complementing the observations in current literature regarding their employment as technologies of ‘soft’ power. User practices on the music recommendation website last.fm reveal that many users do not only utilize the website to receive guidance about music products but also to examine and transform an aspect of their self, i.e. their ‘music taste’. The capacity of assisting users in self-cultivation practices, however, is not unique to last.fm but stems from certain properties shared by all recommendation systems. Furthermore, unlike other oft-studied digital/web technologies of the self which facilitate ‘self-publishing’ vis-à-vis virtual companions in social media, recommender algorithms themselves can act as ‘intimate experts’, accompanying users in their self-care practices. Thus, recommendation systems can facilitate both algorithmic control and creative self-transformation, which calls for a theorization of this new cultural medium as a space of tension.


2015 ◽  
Vol 7 (3) ◽  
pp. 1-27 ◽  
Author(s):  
Luc Behaghel ◽  
Bruno Crépon ◽  
Thomas Le Barbanchon

We evaluate an experimental program in which the French public employment service anonymized résumés for firms that were hiring. Firms were free to participate or not; participating firms were then randomly assigned to receive either anonymous résumés or name-bearing ones. We find that participating firms become less likely to interview and hire minority candidates when receiving anonymous résumés. We show how these unexpected results can be explained by the self-selection of firms into the program and by the fact that anonymization prevents the attenuation of negative signals when the candidate belongs to a minority. (JEL J15, J68, J71)


2010 ◽  
Vol 43 ◽  
pp. 333-337
Author(s):  
Hong Jin Wang ◽  
Zhen Guang Hu ◽  
Zha Nao Wu

In order to monitor the heart rate changes of patients with cardiovascular disease, a wireless ECG system based on the GSM network is developed in this paper. The data captured by cardiotachometer will be transmitted to mobile phones via short-range data transmission, to HR data monitoring center via short message of GSM. In which, the expert diagnostic system analyzes those data and put the results back to the user, especially those cases such as instantaneous tachycardia and cardiac arrest. This may be avoid some life-threatening events occurrence.


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