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Space building communication and control equipment, systems and devices for emergency rescue operati

Space building communication and control equipment, systems and devices for emergency rescue operati

The actions taken in the initial minutes of an emergency are critical. A prompt warning to employees to evacuate, shelter or lockdown can save lives. A call for help to public emergency services that provides full and accurate information will help the dispatcher send the right responders and equipment. An employee trained to administer first aid or perform CPR can be lifesaving. Action by employees with knowledge of building and process systems can help control a leak and minimize damage to the facility and the environment. The first step when developing an emergency response plan is to conduct a risk assessment to identify potential emergency scenarios.

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Emergency Communications Network for Disaster Management

In recent years, from the majority of field experiences, it has been learned that communications networks are one of the major pillars for disaster management. In this regard, the exploitation of different space technology applications to support the communications services in disasters plays an important role, in the prevention and mitigation of the natural disasters effects on terrestrial communications infrastructures.

However, this chapter presents the design and implementation of an emergency communications network for disaster management, based on a topology that integrates communications satellites with remote sensing satellites into an emergency communications network to be activated in disaster events, which affect public or private terrestrial communications infrastructures.

Likewise, to design the network, different technical and operational specifications are considered; among which are: the emergency operational strategies implementation to maneuver remote sensing satellites on orbit for optimal images capture and processing, as well as the payload and radio frequencies characterization in communications satellites to implement communications technology tools useful for disaster management.

Therefore, this emergency communications network allows putting in operation diverse communications infrastructures for data and images exchange, making available the essential information to accomplish a fast response in disasters or to facilitate the communications infrastructures recuperation in emergencies situations.

In each one of the disaster stages, the information flow between the disaster management organizations, the population, and other actors, in general, is a critical and fundamental factor to provide a quick and opportune response to all aspects linked to a disaster event.

Frequently in diverse disasters situations, the terrestrial communications infrastructures are affected by the disaster impacts, phenomena that cause the communications services unavailable to support in the disaster management. In most cases, the disasters impact mainly communications services, such as the mobile phone networks, fiber optic systems, terrestrial microwave systems, fixed telephone services, private and public TV networks, commercial radio networks, and also the Internet services infrastructures.

Scenarios that have a considerable impact in all processes are related to the preparedness, response, and recovery in disaster conditions, since the communications services have an important function in the disaster management tasks.

It is also a technology that has the ability to provide valuable information to assist in all the disaster management phases. From this perspective, the integration of the remote sensing satellites and communications satellites in a novel and practical topology with the purpose of implementing an emergency communications network to manage disaster events represents an important and necessary resource to enhance the abilities to monitor, manage, and control the critical data flow associated with the occurrence of one or more disasters in a specific region.

In the same way, this operational integration offers a suitable and versatile resource to improve the emergency response time, and it is helpful to formulate the different indispensable measures to reduce the consequences and impacts of the disaster on the terrestrial communications infrastructures as well as on other public and private properties. As a result, extensive works have been done over the last few years, proposing the integration of the space technology applications for disaster management, for example, studies about the role of the mobile satellite services and the remote sensing satellites in disaster management, with the aim to decrease the human casualties in natural events through the utilization of both technologies [ 1 ].

Concluding through this analysis, space technologies, such as active and passive remote sensing satellites, communications satellites systems, global navigation satellite systems, and weather satellites platforms, among others space technology applications, have a significant usage and importance in the processes or activities of risks reduction and disaster management, due to the flexibility in their operation characteristics [ 2 ].

In the same way, diverse organizations linked to the space sector around the world have focused their studies on the use and applications of space technology in the different stages involved in the disaster management. For instance, in pre-disaster planning, during disaster, and also in post-disaster phase, an integrated approach of using remote sensing and communications systems, disaster warning radar systems, the portable communications systems, and many others combined with satellite links to carry out the disaster management tasks is considered [ 3 ].

Nevertheless, the work presented in this chapter addresses the design and implementation of an emergency communications network for disaster management. A network designed is based on a topology developed through the analysis and formulation of operational and technical strategies that allow combine the capacities and resources available in the communications satellites and remote sensing satellites inside a topology which facilitates the implementation of diverse communications technology solutions and different schemes or medias for images exchange between the entities or organizations involved in the disasters management tasks, during each stage that comprise the disaster management in case of disaster events that affect the public and private communications infrastructures.

Equally, the emergency communications network, designed and developed methodically through this chapter, is an operational scheme useful and reliable to carry out the disaster management in different scenarios of hazard, considering the operational resources available through the integration of the communications satellites and remote sensing satellites on orbit and also their infrastructures at ground segment level.

In this regard, numerous studies and field systematic experiences have shown the great importance of preserving the communications services operation and also ensuring, at all times, the operability of their associated infrastructures; as the main challenge is presented throughout the disaster events or in hazard scenarios that must be faced by the entities and the personnel responsible for disaster management, since the communications services are a key resource and indispensable to carry out the disaster management tasks in numerous risk situations.

It is important to highlight the high demand that exists during the disaster events for several types of communications services available, and also for keeping fast access and effective update of the information. In the same way, standardized communications and information processes have increased the reliability of communications traffic, besides easy access to the communications services through a fast and reliable system integration and interoperability, to keep the communications flow in operation in all disaster events stages.

These are the primary functions and requirements to be guaranteed by the communications networks with the aim to support continuously the communications services operation during a disaster. In Figure 1 , some disaster events that can affect the communications services operation are pointed out; the figure details the likely damages on the communications networks infrastructures caused by disasters, the potential communications planning required to guarantee the communications services operation, and the actions that must be taken to recover the communications services in the event of a disaster.

This is especially due to the flexibility that offers the communications satellite systems hardware to be installed easily in disaster zones, facilitating the fast communications services recovery. In fact, the importance of the emergency communications networks in disaster events has been proved in many countries; for instance, the Dominican Republic, Central America, is ranked as one of the 10 countries most affected by climate risks worldwide, because it is exposed to diverse recurrent natural phenomena such as hurricanes, tropical storms, floods, earthquakes, landslides and forest fires according to the Global Climate Risk Index of the last years.

Large recurrence of disaster events have originated in the Dominican Republic, and the creation of a national plan for emergency communications in disasters is not only based on the use and management of the communications infrastructure existing in the country but also in the implementation of alternative communications infrastructures and technologies to mitigate the impact of the disaster in this region. Emergency communications network combines the use of the communications satellites with the exploitation of different data set coming from the remote sensing satellites, meteorological satellites, telemetry systems, and specialized equipment with the objective to manage the real-time information exchange in disaster as well as provides a technological platform useful for early warning, mitigation, and forecasting disasters events.

Therefore, this emergency communications network in the practice has contributed to the coordination of relief operations carried out by national entities and the international community in the Dominican Republic, becoming an effective resource in the management of the disasters occurred in this country.

Identically, another practical experience shows the significance of the emergency communications networks in disasters management; it was noticed in the Sichuan Earthquake occurred in the People Republic of China on May 12, , at Hrs, with 8. In particular, due to this earthquake, the telecommunications systems were seriously affected, losing half of the wireless communications in Sichuan province and telecommunications services in Wenchuan and in four nearby counties.

In the same way, to mitigate the damages caused by the earthquake on the telecommunications infrastructures and services, the International Telecommunication Union ITU deployed satellite terminals to help restore vital communications links in the regions affected by the earthquake. Additionally, the Chinese government activated the use of the national communications satellites network to recover the communications services in all affected areas, through the satellite communications services implementation to recover the terrestrial communications services affected in the earthquake.

In this sense, not counting China for the earthquake date with an emergency communications network structured formally, both technologies, remote sensing satellites and communications satellites, were used simultaneously to manage the Sichuan earthquake consequences or impacts. General speaking, in the Sichuan earthquake, the remote sensing satellites helped to analyze diverse damages, including the damages to communications systems. Moreover, they facilitated the formulation of measures to mitigate potential hazard situations, and provided the images with diverse resolutions required.

In this same context, the communications satellites were employed to recover the communications services and also to support the alternatives technologies solutions implementation for different data types exchange between the entities in charges to management of the Sichuan earthquake.

All the applications and tasks described above, covered by the remote sensing satellites and communications satellites combination in the Sichuan earthquake, are the most practical and compelling evidence to establish the design and operation philosophy of the emergency communications network developed in this chapter; and also they make clear the communications networks importance in disaster management.

Nevertheless, to exemplify the emergency communications network design and describe the strategies proposed to maneuver the remote sensing satellites and communications satellites in emergency scenarios, two remote sensing satellites Remote Sensing Satellite-1 and Remote Sensing Satellite-2 and one communications satellite Satnet-3 were selected to integrate the network.

More satellite platforms could also be integrated into the network, according to the availability thereof in disaster events. Figure 2 describes the six tasks defined to design the emergency communications network for disaster management proposed in this chapter. The remote sensing satellites spatial resolution refers in specific to the capacity that has the sensor installed on the satellite platform to distinguish or characterize the resolving power captured, with the aim to identify and also categorize the characteristics of two or more objects observed on the area scanned.

This resolving capacity is related to the instantaneous field of view IFOV size of the sensor and intrinsically associated with the sensor geometrical characteristics, the sensor capacity to discriminate the targets tracked, the sensor capacity to calculate the periodicity of distinct targets tracked, and also to the sensor ability to determine the small targets spectral properties to obtain their spectral signatures.

It is important to point out that the remote sensing spatial resolution has significant use in disaster events; its adequate application allows the sensor capturing images with details or specific characteristics required of the area tracked, affected by one or more disasters. Especially, different spatial resolutions are necessaries that depend on the disaster occurred to ensure the images acquisition accuracy of diverse objects or of the earth surface characteristics through the sensor. In disaster management or emergency response, the spatial resolution is used principally to distinguish the diverse damages on the infrastructures affected by disasters, to establish the adequate measures for fast recovery of damages, to determine the respective scale for images analysis, and to characterize or define the location and areal precision on a surface given.

In this way, to scan small areas and capture the more precise features thereof, it is necessary to use high resolution, but for wide areas, the smallest resolutions are frequently enough to recognize the features desired. Figure 3 illustrates the remote sensing satellite terrain coverage and its field of view FOV angle. In this respect, at the first place, the sensor field of view FOV angle is represented on the figure; this angle corresponds to the whole area viewed by the sensor at a specific period of time and in particular is referred to the sensor radiometric resolution ability to capture the energy from the surface scanned.

Equally, the same figure shows the sensor instantaneous field of view IFOV , which represents the smallest solid angle subtended by the sensor opening from a specific height in orbit at one interval of time during a scanning period. However, the sensor observing area size can be obtained from IFOV angle multiplied by the distance, that is, from ground to the sensor in orbit, and the result represents the ground resolution cell viewed by the sensor, specifying the maximum sensor spatial resolution on the surface scanned.

Finally, the figure describes the satellite trace direction and the sensor scan trajectory on the terrain. Regarding the previous considerations, about the remote sensing satellites spatial resolution and its application in disaster management, the remote sensing satellites sensors have operational technical specifications that influence the images capturing performance.

These specifications are considered during the emergency communications network design and proposed to be managed with the objective to optimize the sensors spatial resolution performance in disasters events.

Such technical specifications are specified following: remote sensing sensor terrain swath coverage estimation, potential remote sensing sensor terrain swath coverage in nadir and at off-nadir angle, remote sensing sensor pixels size estimation at nadir and off-nadir angle, and remote sensing sensor dwelling time for an along track scan; strategies are useful to achieve the best remote sensing satellite platforms performance inside the emergency communications network during the disaster management.

In Table 1 , as examples are shown, the cameras resolutions and their fields of view FOV , for the two 02 remote sensing satellites, are proposed to be part of the emergency communications network in disasters.

The remote sensing satellites on orbit operation have the capacity to change the view pointing angle of their sensors through the roll maneuvers; operational strategy implemented with the aim to allow the sensors to observe in different positions in direction to the vertical trajectory view angle on the terrain; from the nadir angle, until some degrees above this angle. In consequence, by mean of this operational characteristic, the remote sensing satellites have the ability to change their coverage on the terrain, which allows the sensors to cover a greater terrain extension in each satellite pass, through the different pointing angles.

Principally, the pointing angles variation of the remote sensors view on orbit from nadir, achieved through the roll maneuver, is useful in disasters management to scan from two different view angles identical areas involved in disaster events, with the aim to obtain images in different perspectives of the areas affected by disasters.

Also it is useful to images analysis in a three dimensional model for the best understanding of damages in disasters; in the same way, the sensors pointing angle change is effective to accomplish the mapping and interpretation of the zones affected by disasters with the purpose to create simulations model for damages to facilitate the emergency response task and recovery.

For this reason, a proposal based on a methodology following a reliable operational procedure to manage the remote sensing sensors terrain swath coverage estimation RSTSC e in emergency or hazard events is formulated.

Accordingly, first, a procedure to determine the remote sensing sensors terrain swath coverage estimation RSTSC e , minimum in nadir pointing angle and maximum off-nadir pointing angle is established, considering the remote sensing sensors field of view FOV specifications for this estimation as a reference.

Subsequently, the remote sensing sensor potential terrain swath coverage in nadir angle and off-nadir angle RSTSC p using the spherical trigonometry mathematical method considering the law of sines for this aim is determined. In this sense, Eq. For instance, to demonstrate the application of Eq. In Table 2 , the results obtained once the corresponding calculations have been done are specified.

It is notable, through the results obtained and specified in Table 2 using Eq. In emergency scenarios, the remote sensing sensors potential terrain swath coverage estimation, in nadir angle and off-nadir angle RSTSC p , as an operational procedure implemented on the satellite platform through the roll maneuvers, is an effective and reliable operational strategy to forecast in diverse disaster events, the expected terrain swath width to be scanned with the remote sensing sensors in the future satellite passes, using different view angles of the sensors over the terrain or areas that will be covered in a planned mission.

In consequence, it is an important strategy in the disaster management, because it makes possible the prediction and planning in advance the terrain extensions affected by the occurrence of disasters that possibly will be explored by the satellite sensors. Fundamentally, three mathematical approaches can be used to calculate the remote sensing sensor potential terrain swath coverage in nadir angle and off-nadir angle RSTSC p. These mathematical formulations or methods are the next: oblique spherical triangle method, the spherical method using intersecting lines, and the planar surface projection method [ 5 ].

In specific, the oblique spherical triangle method based on the earth model illustrated in Figure 4 is the method selected to predict the remote sensing sensor potential terrain swath coverage in nadir angle and off-nadir angle RSTSC p , because it is the most reliable and accurate method to perform the aforementioned operational calculation.

Oblique spherical triangle method to predict the remote sensing sensor potential terrain swath coverage in nadir angle and off-nadir angle RSTSC p. Generally speaking, the instantaneous field of view IFOV is the area on the ground viewed by the sensor at a given instant of time, an area that specifies the dimension on the ground of each pixel over the surface scanned.

Additionally, in reference to an oblique triangle, three more angles characterized like included angles, described also in Figure 4 , are created by imaginary lines represented for the remote sensing satellite ranging or height h in orbit, the earth radius r e , and the boresight angle or sensor FOV s , forming altogether all these angles a triangle [ 6 ]. As result, considering the oblique spherical triangle method and the law of sines implementation to solve the triangle formed in Figure 4 , it is feasible to calculate the remote sensing sensor potential terrain swath coverage in nadir angle and off-nadir angle RSTSC p.

Therefore, the mathematical formulation using the law of sines to estimate the RSTSC p is next discussed. However, to compute the remote sensing sensor potential terrain swath coverage in nadir angle and off-nadir angle RSTSC p Eq. Nevertheless, taking as a reference the triangle illustrated in Figure 4 , which geometrically describes the oblique spherical triangle method to predict the remote sensing sensor potential terrain swath coverage in nadir angle and off-nadir angle RSTSC p , from Eq.

In resume, the prediction of the remote sensing sensor potential terrain swath coverage in nadir angle and off-nadir angle RSTSC p is a strategy or operational procedure useful for planning the images collection opportunities on the diverse areas that are required to be scanned immediately after disaster events or on those zones that are involved in imminent hazard situations. It is possible to obtain results that are more accurate about the potential sensor terrain swath coverage in nadir angle and off-nadir angle RSTSC p in real operation by the use of the satellite ranging data, measured and obtained periodically from its ephemerides predictions.

Technical cameras or sensors parameters such as remote sensing sensor pixels size at nadir and off-nadir angle and the remote sensing sensor dwelling time for an along track scan are considered; and operational parameters taken into account are to be estimated as part of the strategies proposed to accomplish a better coverage and images capturing on the areas required in the course of emergency response in disasters.

The images captured for the remote sensing sensor have a particular structure based on a format integrated by a matrix of organized rows and columns or cells pixels , denominated altogether, all these rows and columns, as raster imagery.

In this sense, one pixel constitutes the smallest physical point sampled of a raster image, and the pixels size in the raster image represents the smallest point size on the surface captured by the remote sensing sensor in function to the sensor instantaneous field of view IFOV.

Especially, the sensor pixel resolution is affected by the change in sensor scan angles due to the roll maneuver strategy between others operational aspects, which originates variations in the pixels dimensions, becoming increasingly distorted away from the nadir as view zenith angles increase. For this reason, the remote sensing sensor resolution looks distorted along the track and also across track direction at the extreme edges on the surface scanned [ 7 ].

However, the images pixels size captured by the remote sensing sensor is an important sensor performance characteristic necessary to be estimated, when the sensor scan angle is changed through the satellite roll maneuvers, with the objective to increase their potential swath coverage off-nadir angle to cover a specific extension of terrain in a region previously planned; since the pixel size estimation at nadir and off-nadir angles in disaster events is a useful method to define how much the sensor resolution can vary through the pixels spatial size variation along track scan and across track scan.

It will also help to define the relation between the sensor resolution variation with reference to the different scan angles or FOV, as well as the influence of different FOV angle on the resolution of the images captured over the terrain in the diverse remote sensing satellites roll maneuvers required on orbit in case of emergency.

The remote sensing pixels size geometrical characterization in nadir and off-nadir angles is described in Figure 6 , where it is explained through a graphical representation the sensor FOV angles changes and their influence on the pixels size variation on the ground resolution cells.

In particular, the Remote Sensing Satellite-1 and Remote Sensing Satellite-2, satellites platforms considered to integrate the emergency communications network proposed in this chapter, are designed with cameras whose resolution is adequate to observe the geometry of diverse objectives and the characteristics related to the phenomena associated with the disasters events.

Each step of the mathematical formulation to estimate the pixels size in nadir and off-nadir angle is introduced which is as follows:. To explain the application of the previously mathematical approach formulated to estimate the pixels size in nadir and off-nadir angle in the remote sensing sensors, as an example, wide swath multispectral camera WMC as a remote sensor is taken which is installed in the payload of the Remote Sensing Satellite Therefore, in first place, from Eq.

In the same way, by Eq. As already known, this sensor has 12, pixels with 6. In summary, through the analysis of the above results, it is easy to deduct that the ground area represented by each pixel in nadir pointing angle has a better resolution than the pixels at off-nadir pointing angles. Such a phenomenon is due to the spatial resolution, which varies from the image center to the swath edge, and hence, also the pixels spatial size.

Technical aspects are considered in those maneuver situations in which the changes of pointing angles of the sensors are necessaries to management of diverse disaster events in a shortest possible time.

At the present time, there are principally two 02 types of passive sensor technologies for optical cameras used frequently in the remote sensing satellites applications to images scanning and collection over the earth surface; such technologies are the whisk broom scanning sensors and the push broom scanning sensors.

Safety, Health and Wellbeing

Our role is to develop and assist in the implementation of the UWA safety, health and wellbeing programs in order to minimise the risk of injury, illness and property damage. We provide consultancy and other services to promote best practice and legislative compliance in all University and related activities. This information is available in hard copy from the UWA Telephone Exchange ext: 99 or or from Safety, Health and Wellbeing ext: or may be downloaded below. To comply with relevant Western Australian legislation, codes and guidance materials, emergency procedures are prepared and distributed, emergency warning systems installed in most buildings and an Emergency Control Organisation ECO is organised and trained for each workplace.

In recent years, from the majority of field experiences, it has been learned that communications networks are one of the major pillars for disaster management. In this regard, the exploitation of different space technology applications to support the communications services in disasters plays an important role, in the prevention and mitigation of the natural disasters effects on terrestrial communications infrastructures.

The calculation of AFA and occupant load shall exclude the aboveground or underground car park; or. The life safety risk of car park is relatively low as it is a transient space and the occupant load is low. During fire emergency, the one-way emergency voice communication system will be used to notify occupants in the building. Occupants could also be advised to evacuate the building during fire emergency. In phase evacuation, communication with these people can be maintained to prevent panic and to allow further relocation, if necessary.

Confined Space - Introduction

If there is a fire inside a building, the fire alarm system warns employees to evacuate. An evacuation team guides employees to safe exits and outside to assembly areas. The fire alarm system, evacuation team and exits are resources. When a primary facility cannot be occupied, a suitable alternate facility if available may be used. The alternate facility is a resource for the business continuity plan. A needs assessment should be conducted to determine resources needed. Resources may come from within the business including trained employees, protection and safety systems, communications equipment and other facilities owned or leased by the business. Other resources from external sources include public emergency services, business partners, vendors and contractors. The availability and capability of resources must be determined - some are required immediately.

Area of Refuge/Area of Rescue Emergency System

Easy-to-read, question-and-answer fact sheets covering a wide range of workplace health and safety topics, from hazards to diseases to ergonomics to workplace promotion. Download the free OSH Answers app. Search all fact sheets:. Many workers are injured and killed each year while working in confined spaces. A confined space can be more hazardous than regular workspaces for many reasons.

An emergency communication system ECS is any system typically computer-based that is organized for the primary purpose of supporting one-way and two-way communication of emergency information between both individuals and groups of individuals.

TactiCall connects different communication technologies regardless of radioband, frequency and hardware, eliminating the need for multiple, often bulky, user interfaces cluttering control rooms resulting in reduced efficiency, overview and speed of operation. The result is a complete digital dispatch solution tailored to your exact operational needs. The suite helps our customers address key challenges; improving public services, reducing costs, and adapting to rapid technical evolution. The distributed architecture scales from a single workstation to multi-center nationwide deployment, and eliminates single points of failure.

Emergency Communications Network for Disaster Management

Bolero Ozon. Fundamentals of Technical Rescue. Learn essential technical rescue know-how with Fundamentals of Technical Rescue!

SEE VIDEO BY TOPIC: Building and Office Evacuation Training Video - Safetycare Workplace Fire Safety

For many years there were no accepted standards for the design of emergency and standby power systems, even though these systems have been in use since World War II. Today emergency and standby systems are used to provide backup power for building systems to provide assurance that life safety systems and critical equipment can maintain their operation during a power outage. The use of these systems almost comes as second nature when designing large, complex facilities. Yet, how well do you know the specific requirements for these systems? Questions we must consider include:.

Emergency power for fire, life safety systems

ASTM's search and rescue operations standards cover the personnel, equipment, and procedures relevant in the performance of search and rescue SAR operations. These procedures involve the use of available personnel and facilities in locating and providing immediate aid to persons, other living beings, or property that are in actual or imminent distress. These operations are most commonly carried out in urban and suburban locations, combat sites, areas of large bodies of water, and rugged terrains such as mountains, deserts, and forests. These standards help guide SAR organizations and emergency response teams in conforming to the proper methods of conducting these emergency aid procedures. Additive Manufacturing Standards. Cement Standards and Concrete Standards. Fire Standards and Flammability Standards.

BA command and control procedures equipment descriptors. 3. preparedness of the emergency services and their operational effectiveness. part of the Incident Command System that is in place for the Fire and Rescue Good communications between the entry control point and BA teams, other entry control.

Areas of refuge are set aside for situations when normal evacuation is unsafe or impossible. For instance, hospital patients or nursing home residents may be unable to use the stairwell during a fire. Individuals with limited mobility can wait in the secure area of refuge until assisted by firefighters or other rescue teams. The Analog Emergency Communication System from Cornell operates as indicated above with individual buttons for each alarm station or zone routed to an annunciator panel. Our Series analog area of refuge system can be sized from 4 to 20 zones in multiples of 4 zones.

Emergency communication system

За годы работы в АНБ до нее доходили слухи о неофициальных связях агентства с самыми искусными киллерами в мире - наемниками, выполняющими за разведывательные службы всю грязную работу.

- Танкадо слишком умен, чтобы предоставить нам такую возможность, - возразил Стратмор. Сьюзан испытала от этих слов странное облегчение.

Чатрукьян заколебался. - Я не могу. - Разумеется, не можете. Его же не существует.

Это должно было гарантировать, что АНБ не сможет перехватывать частную переписку законопослушных граждан во всем мире.

Внизу по-прежнему завывала сирена. - Надо вырубить все электроснабжение, и как можно скорее! - потребовала Сьюзан. Она знала, что, если они не будут терять времени, им удастся спасти эту великую дешифровальную машину параллельной обработки. Каждый компьютер в мире, от обычных ПК, продающихся в магазинах торговой сети Радиошэк, и до систем спутникового управления и контроля НАСА, имеет встроенное страховочное приспособление как раз на случай таких ситуаций, называемое отключение из розетки.

Полностью отключив электроснабжение, они могли бы остановить работу ТРАНСТЕКСТА, а вирус удалить позже, просто заново отформатировав жесткие диски компьютера.

Хотя, быть может, подумал Халохот, Беккер не видел, как он вошел в башню. Это означало, что на его, Халохота, стороне фактор внезапности, хотя вряд ли он в этом так уж нуждается, у него и так все козыри на руках.

Ему на руку была даже конструкция башни: лестница выходила на видовую площадку с юго-западной стороны, и Халохот мог стрелять напрямую с любой точки, не оставляя Беккеру возможности оказаться у него за спиной, В довершение всего Халохот двигался от темноты к свету. Расстрельная камера, мысленно усмехнулся.

Халохот оценил расстояние до входа.

- Наркотики внутривенно. Кто бы мог подумать. - Проваливай! - крикнула .

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