Man and the Machine

1959 ◽  
Vol 12 (1) ◽  
pp. 30-36
Author(s):  
W. P. Colquhoun

Future transport systems are difficult to predict, but one can perceive three main possibilities. The first is that transport will become entirely automatic, so that where, for example, one now has an automatic pilot during flight, one will also have automatic take-off and automatic landing. Flights will be pre-programmed, and will require no supervision in the vehicle itself or even from a remote-control room. Whether or not such a system is practicable is not within the scope of this paper; but there does not appear to be any purely mechanical problem connected with it that could not be overcome. However the production of equipment of the necessary reliability raises formidable human problems. problems. Not the least among these is the difficulty of maintaining rigorous standards of inspection; another is the rationalization and speeding up of faultfinding and repair procedures. It looks as though if we were to dispense with the human element in one sphere, its importance in another would be enhanced.

2008 ◽  
Vol 83 (2-3) ◽  
pp. 480-485 ◽  
Author(s):  
G. Abla ◽  
D.P. Schissel ◽  
B.G. Penaflor ◽  
G. Wallace
Keyword(s):  

2012 ◽  
Vol 224 ◽  
pp. 547-550 ◽  
Author(s):  
Wei Dong Geng ◽  
Yu Gong ◽  
Li Zhang ◽  
Jian An ◽  
Jian De Wu

Designing the three dimensional (3D) GIS software used in monitoring mineral pipeline transporting system. The software can truly show and restore the geography of project and the features of terrain .The operator can not only examine and grasp the true situation of the distribution of pipeline, but also keep watch on the secure running of the pipeline by real-time remote video in the remote control room. The practical application indicates that the pipeline can run safely, stably and efficiently with the monitoring system.


Author(s):  
Li Li ◽  
Zhang Shengtao ◽  
Xu Zhao ◽  
Du Yu

For PWR, remote shutdown station (RSS) is a redundant control mean to shut down the reactor when main control room (MCR) inhabitation is challenged (e.g. fire, smoke...). Nowadays, due to nuclear power plants control measures were improved with DCS system, a full function DCS RSS was equipped and more essential equipment could be controlled on RSS. Under operating conditions that prohibit nuclear power plant operators to stay in the main control room, the operators should move to RSS and shutdown the reactor to ensure plant safety following <Moving to remote shutdown station when main control room is un-inhabitable operating strategy> (RSS strategy for short) to fallback the plant from power operation to cold shutdown. The original operating strategy by nature circulation is no longer the best choice both for operation safety and economy efficiency, and an optimized new strategy should be raised. Based on the former reason, an optimized operation strategy was raised in this paper. In the optimized strategy, all plant normal standard operation modes were considered as initial conditions, rather than only considering power operation condition in the original one. The fallback mode and fallback strategy for each initial condition was also designed and optimized. To accelerate the depression and heat removal process, a forced circulation operation strategy is adopted when the reactor coolant pumps are available, and less local operation was included by taking advantages of the full function operating measures on RSS. To simplify the whole procedure structure, the operation modules of other general operating procedures are reused. To validate the effectiveness of the optimized operating strategy, a full scope PWR simulation tool was employed to make thermo hydraulic calculation validation of the reactor response and also the remote control station HMI supporting validation. By simulating the original strategy and the optimized one and related analysis, we found that the optimized strategy is effective, and able to be executed based on the remote control station hardware. By executing the optimized strategy, the unit can fall back to the cold shutdown condition safely and a few hours were saved compared with the original strategy. The optimized strategy had already been implemented on real PWR nuclear power plant.


2014 ◽  
Vol 551 ◽  
pp. 509-513
Author(s):  
Song Liu ◽  
Lian Zhi Jiang

This paper introduces a kind of motor frequency conversion energy-saving controller used for fan and water pump loads. Motor energy-saving controller mainly consists of two parts, controller and driver. The main functions of the controller are data collection, control algorithm and communication. The driver is mainly composed of inverter, switch and display instrument. According to the actual situation, if it needs a remote control, we can configure the remote console in the control room, in order to realize the remote control.


2002 ◽  
Vol 2 (2/3) ◽  
Author(s):  
Gavin J. D. Smith

Hitherto, limited empirical research has focussed on the micro-level dynamics and social interactions forming a typical CCTV control room's everyday operational culture. As such, the 'human element' behind the monitoring of the cameras has been largely ignored in much CCTV analysis to date. Drawing upon ethnographic observation conducted within a privately funded CCTV control room, this paper questions the accuracy of a central assumption made in much of the general literature on CCTV, namely that surveillance cameras are not only controlled and monitored constantly, but also operated effectively and efficiently. A consideration of the types of person monitored, and why certain individuals attracted attention from the operatives, is also given. More specifically, and drawing on knowledge gleaned from studies of workplace culture, the article also identifies subtle forms of workplace resistance occurring in the observed control room's informal organisation. This involved strategies such as time wasting and game playing being adopted by the operators, largely in response to the effects of tiredness, boredom, derision and the difficulty of effectively monitoring up to fifteen television screens simultaneously. Indeed, the findings from the research suggested that the operatives felt alienated from their job, due to the imprisoning confines of the CCTV control room, the long hours worked, the high expectation levels placed upon them and the low pay and lack of acclamation received from their employers. Reflecting on these findings, it is concluded that, taken together, the above factors seriously undermine the effectiveness of CCTV surveillance per se.


1960 ◽  
Vol 13 (4) ◽  
pp. 447-454 ◽  
Author(s):  
A. M. A. Majendie

In the development of instrument systems for the purpose of flight control, traditional designs have consistently failed to solve three particular operational problems:(a) The difficulty of transition from instrument to visual flight conditions at the final stages of an instrument approach to land in bad weather.(b) The preservation of instrument control when the pilot±s attention is, for any reason, directed away from the appropriate instruments. Preoccupation with other duties, lack of concentration due to fatigue, keeping a look-out for other aircraft, &c, are examples of situations when the maintenance of accurate flight control may be lost.(c) The effective monitoring of the accuracy and precision with which an automatic pilot is achieving its selected function. Admittedly this can be achieved by the pilot continuously watching his appropriate primary instruments, but this tends to be extremely monotonous, and to a considerable extent reduces the advantages to be derived from effective automatic control. This particular problem reaches its peak under high altitude, high-speed, conditions of cruise of a jet transport, and in the final stages of an automatic approach, automatic flare, or automatic landing, on any type of aircraft.


2021 ◽  
Author(s):  
Mehbub Alam ◽  
Nurzaman Ahmed ◽  
Rakesh Matam ◽  
Ferdous Ahmed Barbhuiya

<div>IEEE 802.11ah is considered as a promising and scalable solution for connecting a large number of drones. With the support of sub-1GHz channel bands, relay, and group-based channel access mechanism, 802.11ah can help drone stations for collecting commands, sending data, and processing response to the control room. However, achieving required throughput and latency is still challenging due to high mobility and dynamic relaying requirement. This article proposes an IEEE 802.11ahbased Internet-of-Drones (IoD) architecture for surveillance and remote control. Our scheme predicts the location of a drone and places the required association and channel access configuration to a relay node dynamically. Moreover, the current mode of a drone station is switched to relay from station as per the location. The relay nodes use transmission opportunity (TXOP) with implicit acknowledgement to increase the efficiency of the network. The performance analysis shows significant improvement in terms of throughput and latency.</div>


2021 ◽  
Author(s):  
Mehbub Alam ◽  
Nurzaman Ahmed ◽  
Rakesh Matam ◽  
Ferdous Ahmed Barbhuiya

<div>IEEE 802.11ah is considered as a promising and scalable solution for connecting a large number of drones. With the support of sub-1GHz channel bands, relay, and group-based channel access mechanism, 802.11ah can help drone stations for collecting commands, sending data, and processing response to the control room. However, achieving required throughput and latency is still challenging due to high mobility and dynamic relaying requirement. This article proposes an IEEE 802.11ahbased Internet-of-Drones (IoD) architecture for surveillance and remote control. Our scheme predicts the location of a drone and places the required association and channel access configuration to a relay node dynamically. Moreover, the current mode of a drone station is switched to relay from station as per the location. The relay nodes use transmission opportunity (TXOP) with implicit acknowledgement to increase the efficiency of the network. The performance analysis shows significant improvement in terms of throughput and latency.</div>


In this day’s people are using different transport systems from one place to another place. Among all the transportation people prefer public transport as their choice for safer journey. So the transportation department takes several checks to measure the safety of the people. The proposed system is for identify and avoid the cracks in railway tracks and collision in-order to prevent the accidents. In this paper to use crack detection and ZIGBEE sensor this will be placed in the train engine. By this if any train comes in the same track or if some crack is detected on the crack the rain starts to slow down and stop at respective point automatically and the place where the crack would be given to control room. In the train collision avoidance system if both the trains are in the same track the both ZIGBEE sensor senses the same signal from opposite train then it automatically applies break and stop the train at certain distance. The proposed system introduces trans receiver based technology, to prevent the trains accident. The ZIGBEE device is installed at each front-end of the locomotive. The main idea of the work is to avoid the train accidents and reduce the manual power.


2018 ◽  
Vol 58 (2) ◽  
pp. 736
Author(s):  
Ross Philo ◽  
Jay Hollingsworth

Cost reductions have become an essential response to lower oil and gas prices. Drilling rigs operate in distant and sometimes hostile environments, so relocating rig-based experts to remote control centres saves costs and improves health, safety and environment (HSE). Key staff can work in an improved environment and movements to-and-from the rig are fewer, lowering transport-related costs and risks. The offsite experts can apply their expertise to the operations of multiple drilling rigs from a single location. To make this a reality, data from thousands of sensors on the rig and from measurement devices such as logging while drilling must be fed to the control room instantaneously and continuously. Legacy systems that poll rig-based devices for new data consume significant bandwidth and deliver data in a discontinuous manner with delays of 15 s or more. This does not meet the criteria for safe and reliable remote control of a rig and has been the reason why many roles have remained rig-based. This paper describes a new set of protocols that establish a continuous stream of data from devices on the rig to the control room with sub-second lag time. The new protocol also uses an order of magnitude less bandwidth, thus allowing more data to be carried in less time. Associated with industry-standard well-site information transfer standard mark-up language data transfer formats, the process operates with numerous service providers and software systems transparently. This paper includes a case-study to which the new protocol is applied, resulting in fewer permanent staff on a North Sea rig and fewer visits by an intervention contractor to the rig, with clear cost savings and HSE risk mitigation.


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