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Door Alarm System
Summary: The first ever alarm system was a straightforward device consisting only of a power, a solenoid gong to serve as the alarm and the trigger
The first ever alarm system was a burglar alarm. This door alarm system was a straightforward device; the circuit consists only of a power, a solenoid gong to serve as the alarm, the switch or the trigger. In an era where inventions and discoveries are taking place one after the other, the alarm system was surprisingly received warmly, even though major inventions such as the telephone did also take place.
Though Edwin Holmes door alarm system is somewhat primitive compared with todays technology, it is still surprisingly effective. The design flaws of the door alarm system make it a bit unreliable but if you are interested, read on as I detail how to put together your own door alarm system.
Note that this little DIY (do-it-yourself) exercise needs elementary electricity skill. You should know also the dangers of naked lines and electrical hazards. So without further ado
Choose a switch. The suitable one is a press switch. To help you illustrate, study the door switch of a refrigerator. When you open the door, the light goes on, right. The circuit we are going to make is exactly the same, except our resistor wont be a light bulb but instead a buzzer. So choose a press switch that completes the circuit when the button is released. If your not sure, ask the help of the proprietor of the hardware store.
Now choose a buzzer. The buzzer is purely your choice. It could be a standard BUZZ or a subtle Ding-Dong as long as it is loud enough to be heard for it to be useful.
Now, choose another switch. This switch is used in setting the device on. Because without it, your door will constantly alarm whenever somebody passes through the door.
Connect the circuit. Start first by choosing a spot for the buzzer. The best place for you to place the buzzer would be in the stairs area or the junction of two rooms (if its a one story house). Attach the trigger switch to the doorframe, basically just like the refrigerator device. In most cases you have to extract a piece of the wood to have a place for your switch. Close the circuit by attaching to a power supply. Remember to turn off the power before working. Attach first the wire to the alarm, then to the trigger switch then to the control on-off switch then lastly to the buzzer. Attach the circuit to the power lastly. Check the connection, if you have a tester its time to use it now. Check everything thoroughly before putting the power back on.
When activated the door alarm system will buzz every time the door is open. Now you see the flaw. It only takes the intruder to close the door for the alarm to silence. But still, in most cases. The alarm should jolt everyone to wakefulness.
Car Alarm Systems
Most victims of car theft never considered that it would happen to them. There is about one automobile stolen every twenty seconds in the United States alone. Even in todays technology, car theft is very rampant. That is why car alarm system manufacturers are always improving their technology and innovating in order to avoid car theft.
Car alarm systems are gadgets that are installed on cars to thwart or discourage theft of cars. Car alarm systems of the early years work by making a loud sound and only. As the years go by, car alarm systems work by disabling the ignition system of the car. Some car alarm systems send a radio signal to the owner thru a beeper. Some car alarms are set off by vibrations, touch, tilting of the car opening or closing of door contacts, small and rapid changes in the voltage of the battery or through infrared sensors and ultrasound sensors.
In some cities in the United States, car alarm sounds are ignored because most of these alarms are accidental. They are either caused by vibration, thunder, passing of a large truck or of individuals innocently touching the car. And most people in some cities in the United States ignore or do nothing when they hear the sound of a car alarm. Because of large portion of car alarms are false alarms or accidental, car alarm system manufacturers are no longer producing simple noise making car alarm systems. As a replacement for these noise making car alarm systems, car alarm manufacturers are now producing silent immobilizers. Immobilizers are electronic devices that are installed on a vehicle that prevents the engine from running if the vehicle is inserted with the wrong key. After the innovation of the immobilizers, sophisticated car alarm systems now feature vehicle tracking system that enables law enforcers to track stolen vehicles which is very much more effective than immobilizers. On the other hand, these advance features (immobilizers and vehicle tracking system) can not prevent theft of some articles or equipments inside the vehicle or vandalism of the automobile.
An ideal car alarm system must have the two above mentioned features and sensor that could detect vibrations and pressures of the car. Sensors like a shock sensors triggers the alarm when something or someone moves or hits the car. Some car alarm systems have loud alarms, concierge system, locking steering wheel system, cellular phone alarms that call the police, engine lock system and fuel lock system which prevents fuel from the engine.
Aside from car alarm systems, having a large and heavy gauged steering wheel lock is a good idea in preventing car theft because it will give the car thieves a hard and tiring fight just by removing it alone.
Antitheft Alarm Systems
Summary: So what is the best antitheft alarm system for you?
If youve watch the Mission Impossible movie series, you may have lost faith in antitheft alarm systems. Because however advance and complicated these systems are, those leather clad techno-geeks always manage to make short work with them. Thats how science fiction goes. But in reality, todays antitheft alarm systems bites hard. It may look cool on screen but truth its the machines that win.
Amid todays cutting edge technology antitheft alarm systems have gone from competent to supreme. With every possible implementations now imbedded, alarm systems are now capable for every situation that ultimately it falls to whether you need all the extras. Theres no mission impossible to defeat here. Not to mention the staggering price tag it eventually would have. True, when safety is at stake, you are more than ready to shell out more bread. Even then, you still dont want to pay for those loaded antitheft alarm systems with gizmos you wont even bother activating.
So what is the best antitheft alarm system for you? To classify, there are 4 basic antitheft alarm systems:
1st Simple alarms are mostly concocted alarms or self installed on windows and doors. They are the cheapest. Upon activation, they set off the alarm.
2nd Local alarms do more. When wires are tripped, they make full alarm blast; some have macros that allow other automation, like turning on lights. Depending on their nature, they can be cheap or expensive.
3rd Automated dialer systems may or may have sirens but what they generally do is dial the pre-selected numbers for help. Automatic dialers have panic buttons, which upon activation will proceed to dial for help.
4th Monitoring systems are 24/7 monitoring services. They cost monthly fees but they are most voted safe due to the continuous monitoring.
So what do you need? If your problems are casual trespassers and intruders, you could go for the first option though you still have to dial the emergency line if things go dire. Simple alarms are cheap. Some designs can be homebrewed (see The Fundamentals of a Burglar Alarm System). If you are mostly away from home, or robberies are a neighborhood problem, then the second or third option is needed. Some antitheft alarm systems are a combination of siren, dialer and automated light control, so be sure to look for one. Take note, these designs cost more since they naturally do more than the standard stuff. Still they are better protection than the standard alarm devices.
The ultimate protection is the monitoring services. They monitor homes 24/7. They are constantly in touch with emergency response teams; some even have their own response unit. Not only they monitor theft activities, they also include fire safety and (on some) personal health safety. For that reason, they can cost astronomical. This antitheft system is best suited for homes that are located in unpopulated areas and with lots of valuables.
Assuredly, the best antitheft alarm systems are out in the market already. It only a matter of choosing which is the best for your homes.
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Driveway Alarm Systems
Installing driveway alarm systems on your driveway provides additional protection to your loved ones and your home. Knowing when somebody is approaching your home is essential in home security. Driveway alarm system gives you advance notification of wanted or unwanted company.
Driveway alarm systems are similar to automatic doorbells; it informs you of approaching guest. Driveway alarm systems work by sending a signal to its receiver whenever its infrared motion sensors or magnetic sensors or rubber air hose system (like the ones used by gas stations that detects vehicles driving over the hose) detect vehicles, people or large animals are on your driveway.
Driveway alarm systems have two basic components. The driveway alarm transmitter and the driveway alarm receiver. The driveway alarm transmitter is placed on the driveway to detect vehicles, persons, or large animals on the driveway. If a presence is detected on the driveway, it will send a signal to the driveway receiver, thus alerting the occupants of the house. Driveway alarm systems usually have microphones and speakers to communicate with the guest and the occupants. Or in a case like burglary, driveway alarm systems triggers a very loud sound, usually a prerecorded message that prevents the burglar from doing any bad intentions to the house.
Driveway alarm systems are easy to install. The sensors of the driveway alarm system can be installed almost anywhere. It can be installed beneath the eaves of your house, or on the yard, or on the surrounding area of your property hidden out of sight, or disguised as an intercom system on the gate of your driveway.
There are four types of driveway alarm systems. These are wireless driveway security systems, wired driveway security systems, driveway alarm systems with infrared motion sensors or passive infrared, and driveway alarm systems with vehicle sensing probes that use magnetic detectors.
Each type of driveway alarm systems has its own advantage and disadvantage. The wireless system is easy to install and inexpensive but its batteries and transmitters have limited range. In the wired system, outside maintenance is not required, but it is more expensive and difficult to install. Driveway alarm system uses infrared motion sensors and is very good in detecting cars and people; however it also detects large animals and is usually set off by birds and other environmental occurrence. Driveway security alarm system uses vehicle sensing probe or magnetic sensor and can only detect moving metals and not people walking.
Every driveway security alarm system has its own unique features. It is important to remember that homes that are not installed with security alarm systems are more prone to burglary. One way of prevention is by installing a security alarm system on your home.
Door Alarm System
Summary: The first ever alarm system was a straightforward device consisting only of a power, a solenoid gong to serve as the alarm and the trigger
The first ever alarm system was a burglar alarm. This door alarm system was a straightforward device; the circuit consists only of a power, a solenoid gong to serve as the alarm, the switch or the trigger. In an era where inventions and discoveries are taking place one after the other, the alarm system was surprisingly received warmly, even though major inventions such as the telephone did also take place.
Though Edwin Holmes door alarm system is somewhat primitive compared with todays technology, it is still surprisingly effective. The design flaws of the door alarm system make it a bit unreliable but if you are interested, read on as I detail how to put together your own door alarm system.
Note that this little DIY (do-it-yourself) exercise needs elementary electricity skill. You should know also the dangers of naked lines and electrical hazards. So without further ado
Choose a switch. The suitable one is a press switch. To help you illustrate, study the door switch of a refrigerator. When you open the door, the light goes on, right. The circuit we are going to make is exactly the same, except our resistor wont be a light bulb but instead a buzzer. So choose a press switch that completes the circuit when the button is released. If your not sure, ask the help of the proprietor of the hardware store.
Now choose a buzzer. The buzzer is purely your choice. It could be a standard BUZZ or a subtle Ding-Dong as long as it is loud enough to be heard for it to be useful.
Now, choose another switch. This switch is used in setting the device on. Because without it, your door will constantly alarm whenever somebody passes through the door.
Connect the circuit. Start first by choosing a spot for the buzzer. The best place for you to place the buzzer would be in the stairs area or the junction of two rooms (if its a one story house). Attach the trigger switch to the doorframe, basically just like the refrigerator device. In most cases you have to extract a piece of the wood to have a place for your switch. Close the circuit by attaching to a power supply. Remember to turn off the power before working. Attach first the wire to the alarm, then to the trigger switch then to the control on-off switch then lastly to the buzzer. Attach the circuit to the power lastly. Check the connection, if you have a tester its time to use it now. Check everything thoroughly before putting the power back on.
When activated the door alarm system will buzz every time the door is open. Now you see the flaw. It only takes the intruder to close the door for the alarm to silence. But still, in most cases. The alarm should jolt everyone to wakefulness.
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