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Thursday, October 21, 2010

Optical Smoke Detectors : A Toast Proof Smoke Alarms.


The optical smoke detector includes a light source like incandescent bulb or infrared LED, a lens throws light into a beam, and a photodiode or other photoelectric sensor
An optical detector can be related to a light sensor. When an optical detector is being used like a smoke detector the following aspects are included:
  1. A light source such as an incandescent bulb or an infrared LED is used.
  2. A lens that throws light into a beam
  3. A photodiode or other photoelectric sensor placed at an angle to a beam
Where there is no smoke the light tends to pass in front of the detector in a straight line. As soon as the smoke enters the optical chamber and crosses the path of the light beam the light gets scattered due to the smoke particles. This gets directed at the sensor and it triggers off the alarm.
These detectors are visible in the auditorium or gymnasium. They are installed to detect the projected beam. A beam is sent out by the unit installed in the wall. This beam is being received back by the receiver or it is reflected back through the mirror. An alarm signal is sent to the fire alarm control panel as soon as the beam gets less visible to the sensor’s ‘eye’.
The optical smoke detectors can detect particulate or the smoke that is being generated by the cool, smoky smoldering fires. Certain tests have indicated that these detectors detect particulates or smoke about 30 seconds later from the flaming hot fires than the ionization smoke detectors.
The optical smoke detectors are not so sensitive to false alarms arising out of the steam or cooking fumes that are generated from the kitchen. Or to steam that arises from the bathroom. For this purpose the ionization smoke alarms are more sensitive. That’s why they are also called “toast proof” smoke alarms.

Tuesday, October 19, 2010

Technorati Claim

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Trouble with Resetting the Fire Alarm System?

The use of fire security alarm systems is gaining popularity day by day. Though your fire alarm system manufacturer or fire alarm panel suppliers assures you regarding its installation, monitoring and maintenance but he may not be available 24x7 for you. By any circumstances your system triggers the alarm during a power outage in the house or even when there is excess smoke while cooking the food. What next? How will you reset your fire alarm system? However, you may disconnect the battery of the system to switch off the alarm but the situation is still the same – trouble with resetting the system!

You may ask your fire alarm manufacturer or supplier to guide you on the same over a phone call or over an internet chat, but that is not a permanent solution. You should be aware of the basic working procedure of this system. Follow these basic steps to overcome such a situation:
  1. Get the manual first to know about the make of the system, its type and model number / serial number.
  2. Go through the manufacturer's website to know about the process of installation.
    If you are switching off the system because of any reason, disconnect the power first. You can do it by disconnect the battery. Leave the system off at least for five minutes.
  3. The moment you turn or power or connect the battery to the system, press the * (star) and # (pound) keys at the same time.
  4. Once the power is on, feed the unique installer code for your fire alarm system or smoke detector.
Now your fire alarm system is reset. The process is quite similar to rebooting a computer system. You may face this situation in case of cooking food, fireworks in the premises or even in case of a technical failure. At that time, you should be aware of the working process of your fire alarm system.

Monday, October 18, 2010

Benefits Of CCTV

CCTV is useful in those areas where the security factor is very important. These systems help to prevent theft and illicit activities, aid law enforcement activities, help in comprehensive security management, promote a safe working environment, and assist in shoring the legal cases.
CCTV or closed circuit television systems are security camera or surveillance systems which have been deployed at crowded places, at public areas, in buildings, properties, installations where the security issue is extremely important.
The benefits of CCTV can be summarized as:
1) Prevention of theft and illicit activities: CCTV systems have been deployed to prevent theft and vandalism of property. They deter the petty thieves and criminals from indulging in illegal or criminal activities.
2) Aiding of law enforcement activities: CCTV systems have been installed in cruisers and police vans for surveillance and law enforcement activities that aid the police.
3) Comprehensive security management: For the security management of wide open areas, and parking lots, the mall developers, large property owners, government institutions, metro rail and transit systems and military facilities have invested in high end sophisticated CCTV systems.
4) Promote safer work environments: CCTV systems help to monitor and manage the data centers and IT facilities to prevent the pilferage of data, digital assets and storage devices. The security personnel that are stationed at the workplace with CCTV systems facilitate an effective access control for both visitors and employees. This promotes for a safer work environment.
5) Shoring up legal cases: The new generation CCTV systems possess the capabilities to capture the sound, audio and the digital voice. The audio/video recordings can be brought as permissible evidence in courts for sexual harassment and other legal cases.

Friday, October 15, 2010

Optical Smoke Detectors : New Technology Fire Alarm System

The optical smoke detector includes a light source like incandescent bulb or infrared LED, a lens throws light into a beam, and a photodiode or other photoelectric sensor.

An optical detector can be related to a light sensor. When an optical detector is being used like a smoke detector the following aspects are included:
  1. A light source such as an incandescent bulb or an infrared LED is used.
  2. A lens that throws light into a beam
  3. A photodiode or other photoelectric sensor placed at an angle to a beam
Where there is no smoke the light tends to pass in front of the detector in a straight line. As soon as the smoke enters the optical chamber and crosses the path of the light beam the light gets scattered due to the smoke particles. This gets directed at the sensor and it triggers off the alarm.

These detectors are visible in the auditorium or gymnasium. They are installed to detect the projected beam. A beam is sent out by the unit installed in the wall. This beam is being received back by the receiver or it is reflected back through the mirror. An alarm signal is sent to the fire alarm control panel as soon as the beam gets less visible to the sensor’s ‘eye’.

The optical smoke detectors can detect particulate or the smoke that is being generated by the cool, smoky smoldering fires. Certain tests have indicated that these detectors detect particulates or smoke about 30 seconds later from the flaming hot fires than the ionization smoke detectors.

The optical smoke detectors are not so sensitive to false alarms arising out of the steam or cooking fumes that are generated from the kitchen. Or to steam that arises from the bathroom. For this purpose the ionization smoke alarms are more sensitive. That’s why they are also called “toast proof” smoke alarms.

Saturday, October 9, 2010

Security Access Control: Safekeeping Your Premises

Requirements like centralized monitoring system, e-access control, e-attendance and complete safety are very common among the multi-national companies today. If you are concerned about your home safety and security, you may also need advanced technologies & devices like security access control that is getting popular in every corner of the world. To serve the purpose, what we seek is technological expertise, cutting edge solutions and the best of services.

Present Scenario
Today, you may come across a number of safety device suppliers and security systems manufacturers that claim to be the best in services like security access controls, CCTV surveillance devices, video door phones, intrusion alarms, fire alarms and so on.

Security access control has become a necessary tool to be implemented in offices today, which further helps in dealing with access issues and monitoring the in & out timings of the employees. To serve the purpose of this centralized monitoring system, various security device manufacturers and access control device suppliers have come up with access smart cards, CCTV monitoring system, vehicle parking systems, asset tracking system etc. All these computerized devices are interlinked with the server room from where anything & everything can be monitored & traced.

Security access control device and CCTV surveillance is very necessary from safety point of view and it is being applied to even car locks, ATM centers, laptops and many such places these days.

Types of Security Access Controls
Advanced security access control devices work on the phenomenon of “I & A” – Identification and Authentication – of any person. To serve the purpose, access control systems are designed in various ways.

1. Password Operated Access Control: This system seeks a unique password or personal identification number (PIN) to provide you with the access. Every person is given a different & unique password, and you can access it by dialing your own password.

2. E-Card Operated access Control: A special e-card, smart card or e-token is issued to the workers. Like the password or PIN, every card is different from the other. You can access the control by your own card only.

3. Biometric Measurement Operated Access Control: This technology uses your fingerprint, voice, retina or iris characteristics to provide you with the access.

Thursday, October 7, 2010

Why Buy a Solar Aviation Light?

In past few years, the aviation industry has witnessed a number of aircraft collisions and accidents. ‘Blackout’ is one such major issue that causes a huge damage to the industry. And due to bad weather or poor light, even the expert and experienced pilots, sometimes, fail to control the aircraft. To overcome this issue, solar aviation lighting has proved to be a fruitful solution that prevents the collision of aircrafts with tall structures or buildings, and helps in the safe landing on the runway.
 
Technology Of Solar Aviation Light
With high atmospheric transparency, the solar aviation lights are visible from the aircraft from a distance of over 2.5 kilometres. Usually, these lights flash 20 to 60 times per minute. This flash frequency can be adjusted manually as per the requirement or weather conditions. After adjusting the frequency, these lights can be switched over to automatic mode.

Available in two different colored lamps, i.e. red and white, these are manufactured to be used in night as well as day time. Generally, red lights are meant for night hours and white (Xenion Dischatrge Flasher) for the day. When it comes to the life span, a solar aviation light lasts up to 1,00,000 hours or even more.

Solar aviation lights are available in low intensity, medium intensity and high intensity modules. You may purchase any of these as per the requirements. These solar lights, being used by the renewable source of energy, have several benefits over the conventional incandescent bulbs or fluorescent lights:
  • Eco-friendly lights
  • Almost zero power / electricity consumption
  • No wires required for installation
  • Cost-effective instruments
  • One-time investment during the installation
  • Very low maintenance
Based on the above mentioned advantages, solar aviation lights have become the first preference of aviation industry all across the globe. Being so cost effective, it is in practice globally and its various intensity modules are fully capable to give a threat to the blackout now!