Q1: What are the main functions of intrusion detection and alarm controller?
A: 1. Supply power to front-end alarm detectors
2. Receive the alarm signal from the alarm detector
3. Analyze and judge the received electrical alarm signals for further processing
4. Start the alarm device such as alarm lamp, alarm siren, etc. to send the alarm.
5. It can indicate the location of the alarm.
6. Can report an alert to an emergency centre or other relevant department via telephone lines or other means of communication.
7. Drive peripherals, such as turning on camera, VCR, lighting, starting printer printing.
8. The system can conduct self-inspection to check whether the work of each part is normal, or send a fault alarm signal.
9. The system can be programmed through the keyboard, which can better meet the needs of different users.
Q2: What is the working status of the intrusion alarm system?
A: 1. Arm status, that is, the normal state of alert
2. Disarm status. At this status, the system detector is not working.In the state of disarming, the detector will not send an alarm signal to the alarm controller even if there are abnormal situations on the scene.
3. Bypass status, it means that the operator sets bypass instruction for a certain defense area, the detector in the defense area will be bypassed from the whole detector group and cannot enter the working state.
4. 24-hour monitoring status, in which some zone detectors are set to work all day and are not affected by the disarming.
Question of security alarm system
Question of security alarm system
Last edited by Jim on Wed Mar 03, 2021 12:14 pm, edited 1 time in total.
Guide and supplier for fire alarm systems.
Re: Question of security alarm system
Q3: How do I choose to install color or black/white surveillance cameras?
A: 1. Color camera is suitable to be installed in strong light, colorful occasions, such as the street and other occasions used for monitoring.
2. Black and white surveillance cameras are suitable for installation in corridors with low light and outdoor surveillance with low light at night.
Q4: What are the main parameters for measuring camera quality?
A: 1. The pixels.The more pixels the camera has, the higher the image resolution and the clearer the image.
2. Image sharpness, also known as horizontal resolution, is commonly expressed by TV lines.
3. Sensitivity Lux refers to the amount of light required to produce a clear image
4. Signal to noise ratio.The higher the ratio, the better the image quality.
Q5: What is a video matrix switcher?
A: Using microcomputer (or single chip microcomputer) control, with multiple video input and multiple video output, has a strong control function, can play the role of the whole analog TV monitoring system host.The input image of any video camera can be switched to the output monitor of any one line for display as required, which is also called video matrix switch control host.
Q6: What are the main functions of video matrix switching host?
A: 1. Matrix video switching function.
2. Control functions of front-end equipment.
3. Input and output functions of receiving alarm signals.
4. Communication functions with standard interfaces and supporting computers, etc.
5. Control function.
6. Programming functions.
A: 1. Color camera is suitable to be installed in strong light, colorful occasions, such as the street and other occasions used for monitoring.
2. Black and white surveillance cameras are suitable for installation in corridors with low light and outdoor surveillance with low light at night.
Q4: What are the main parameters for measuring camera quality?
A: 1. The pixels.The more pixels the camera has, the higher the image resolution and the clearer the image.
2. Image sharpness, also known as horizontal resolution, is commonly expressed by TV lines.
3. Sensitivity Lux refers to the amount of light required to produce a clear image
4. Signal to noise ratio.The higher the ratio, the better the image quality.
Q5: What is a video matrix switcher?
A: Using microcomputer (or single chip microcomputer) control, with multiple video input and multiple video output, has a strong control function, can play the role of the whole analog TV monitoring system host.The input image of any video camera can be switched to the output monitor of any one line for display as required, which is also called video matrix switch control host.
Q6: What are the main functions of video matrix switching host?
A: 1. Matrix video switching function.
2. Control functions of front-end equipment.
3. Input and output functions of receiving alarm signals.
4. Communication functions with standard interfaces and supporting computers, etc.
5. Control function.
6. Programming functions.
Guide and supplier for fire alarm systems.
How to choose fire detectors
Q: How to choose fire detectors
A: 1. Smoke detector should be selected for places with smouldering stage in the early stage of fire, producing a large amount of smoke and a small amount of heat and little or no flame radiation.
2. Heat detectors, smoke detector, flame detectors or a combination thereof can be selected for places where fires develop rapidly and are likely to produce large amounts of heat, smoke and flame radiation.
3. For places with rapid fire development, strong flame radiation and a small amount of smoke and heat, flame detector should be selected.
4. For places with unpredictable fire formation characteristics, detectors can be selected according to the results of simulation tests.
5. Flammable gas detector should be selected for places where flammable gas or liquid vapor is used, produced or gathered.
A: 1. Smoke detector should be selected for places with smouldering stage in the early stage of fire, producing a large amount of smoke and a small amount of heat and little or no flame radiation.
2. Heat detectors, smoke detector, flame detectors or a combination thereof can be selected for places where fires develop rapidly and are likely to produce large amounts of heat, smoke and flame radiation.
3. For places with rapid fire development, strong flame radiation and a small amount of smoke and heat, flame detector should be selected.
4. For places with unpredictable fire formation characteristics, detectors can be selected according to the results of simulation tests.
5. Flammable gas detector should be selected for places where flammable gas or liquid vapor is used, produced or gathered.
Guide and supplier for fire alarm systems.
Re: Question of security alarm system
The best security alarm system services can be found at Axle Systems
that are best with its quality
that are best with its quality