With the continuous improvement of living standards, people are paying more and more attention to home security. Therefore, a reliable and practical home security system has become a necessity for many people. Nowadays, there are various security systems for you to choose from on the market, especially smart home security systems, which are both beautiful and worry-free, but their price is also high, and the price of tens of thousands is not always affordable for everyone. Therefore, we need to create a set of economical and practical security systems that are suitable for our own families.
First, the access control system
As the saying goes, "When a person is a monk", it is clear that access control has become the most important safety tool. Nowadays, the community usually installs intercom systems on the corridors, which should be the first line of defense in home security. Of course, the security management of many residential communities in the old community is not perfect. For such families, people prefer to use the security door as an 'iron general' to protect the family's safety.
Second, the monitoring system
For home security, the surveillance system has now begun to enter the hearts of people, especially with the popularity of computers, home monitoring seems to have begun to become a necessity. However, buying a surveillance system is like buying a mobile phone. Each needs to choose different monitoring systems according to their needs. Before we determine product support, we should determine our own requirements for prevention, understand the relevant product knowledge, and determine product support plans based on actual conditions. When conditions permit, it is best to draw a simple product support and installation plan, list each product's installation location, installation methods, use of accessories, etc., in order to avoid the lack of installation in the East and West, affecting the installation.
The first step: decide whether to use PC+ capture card or DVR as your host;
The advantages of adopting PC+ capture card: You can make full use of the original home computer of the factory (the configuration meets the requirements of the card). Each monitor card has different requirements for the PC system. Please use the CPU and chipset of INTEL P4 and the PC at the same time. It can also be used for general purposes. The disadvantage is that the hard disk space required for video files is large. For long-term applications, you need to use a professional digital hard disk recorder. Digital Video Recorder: Compared with traditional analog video recorders, DVRs have greater advantages. They are: video length, maximum video recording time depends on the capacity of connected storage devices, and can reach several hundred hours; With multiple video and audio channels, simultaneous recording of several channels, more than ten channels, or even several tens of channels can be performed at the same time; the quality of recorded images will not degrade with time; the functions are richer and not as simple as traditional analog video recorders. Different application areas have different functional requirements for hard disk recorders. For example, a hard disk recorder used in the surveillance industry should have the following functions: compression function, video function, playback function, backup function, network function, pan/tilt, lens control function, and alarm input/output. Hard disk recorders designed and produced by different manufacturers do not necessarily have all the features listed above.
Step 2: Determine the need for several cameras to determine the camera image quality
According to the specific conditions of each monitoring point, determine the picture quality requirements of each surveillance camera, and determine the number of home surveillance system cameras.
The third step: whether to have night vision function
There are a wide variety of surveillance cameras that look dazzling, determine the illuminance (brightness) of the surveillance site and whether night monitoring is needed. If the environmental brightness of a monitoring point is low or needs night surveillance, you need to determine the surveillance camera. It is an infrared camera. Do not need night vision function, please purchase ordinary camera, need special features (such as the pan-tilt head, zoom lens please buy other cameras that you approved.)
Step 4: Is it wired or wireless
In addition to the expensive price, the wireless network does eliminate the trouble and the unsightlyness of the camera cable, but it needs to pay attention to the distance and obstacles. In principle, cement and building materials will shorten the wireless transmission distance. Metal materials will completely block the wireless signal. The transmitter (on the camera) and the receiver (on the host) should be far away from other appliances to avoid interference. If you want to use a wireless network, However, if you are not sure, you can also contact the engineering company. It should be noted that you must accurately measure the distance between each camera and the host.
Step 5: Camera Features and Pricing
If you still have doubts and can't decide, then you need to figure out your needs, such as the desired image quality, the nighttime light, the distance to be shot, and you can choose the right camera based on these factors.
Here are two commonly used home monitoring solutions:
1, network camera
You only need to buy a network camera (usually also need to add a router), the network camera connected to the router through the network cable, you can achieve LAN monitoring. In most cases, you can do remote monitoring by doing port mapping on the router. At present, some manufacturers have implemented the route penetration technology, do not need the user router settings, and truly achieve plug and play, which is a good thing for users who are not familiar with the computer.
Network cameras do not need computers to cooperate with the monitoring front-end to achieve remote monitoring through the Internet, not only through the client software, but also directly through IE to browse. In addition, most network cameras also support motion detection, video, history playback, capture and other functions. Since the monitoring front-end only requires an embedded device, the cost is reduced, the complexity of the installation is reduced, and the maintenance is very simple. On the installation, many sites are now networked and can be used directly. If video lines are used, they are often re-routed and the cost is high.
2, camera + video capture card + computer + monitoring software
Now all kinds of acquisition cards basically have their own monitoring software, generally can achieve remote monitoring capabilities, users need to buy cameras, video capture card (general free distribution software), in their own computer to plug the acquisition card, and then the camera Connected with the acquisition card, running monitoring software can realize LAN and remote monitoring.
Third, anti-theft alarm system
Home security systems, the proportion of anti-theft system is also not a small one, the family anti-theft alarm system usually consists of: detector (also known as alarm) carbon monoxide gas alarm, transmission channel and alarm controller three parts. The alarm detector is composed of sensors and signal processing. It is used to detect intruder intrusion or smoke. The device consisting of electronic and mechanical components is the key to the anti-theft alarm system. The sensor is the core component of the alarm detector. The use of different principles of the sensor components, can constitute different types, different uses, to achieve different detection purposes of the alarm detection device. Under normal circumstances, the home burglar alarm system uses the host computer to connect all kinds of detectors wirelessly or by cable to realize anti-theft alarm function. The host computer is connected to the fixed telephone line. If there is alarm, dial the alarm according to the mobile phone or the telephone number set by the customer.
The anti-theft alarm system is an important facility to prevent accidents such as theft, robbery and fire. In the event of an emergency, the owner can be promptly notified by telephone to facilitate the rapid adoption of emergency measures to prevent accidents or the expansion of disasters.
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