Is it correct for the CCTV surveillance system to share the same security box with the alarm system?

If the CCTV monitoring system and the alarm system work together to update, if it is normal, you should find a professional electrician to see if it is normal.

This one should be fine, if they link. You can use a single thread.

The alarm system is now installed and must be drip safe and effective, so as to be able to better facilitate the masses.

This kind of use of a wire to make a health box is the wrong behavior, and you should find a professional to install it.

According to the standard, it is not standardized, but if the power of the power supply is sufficient, it is no problem to use it in this way.

It is incorrect for the CCTV system to share a security wire box with the alarm system, as they are two different functions.

Enter the TV monitoring system, the alarm system has a case is correct, this should find more professionals in this area to help you, ask you, and see if there is any good way to separate them.

This problem should be found by a professional installer. Decide if it's okay or not.

The purpose of the CCTV monitoring system is to realize: alarm recording, alarm jumping out of the real-time monitoring screen (there are some preset PTZ, etc.), alarm linkage control lighting and other aspects.

1.Composition of CCTV surveillance system.

1) Center-level equipment. The center-level equipment can meet the requirements of the control center driving management personnel (driving dispatcher, environmental adjustment and maintenance adjustment), and the main equipment is the best decoding equipment, digital hard disk video recorder, central network management terminal, central control panel and monitor, which can ensure that each user has a set of independent equipment and does not interfere with each other.

2) Station-level equipment. Station-level equipment can meet the value requirements of station staff and train drivers, and its main equipment is more pressing, station control panel tax monitor, digital transmission equipment for viewing mode moment reduction, regulation and insertion of person splitter, video period average street amplifier, digital hard disk recorder and other equipment.

Answers]: a, c, d

A, C, D direct sunlight, back to the object waxing the window are all backlight cover slippery, because the background is bright when backlight shooting, it is easy to cause the image of the shooting scene to be dark so that the result can not be seen clearly, so the camera should be installed as far as possible along the light, relative to the light of the window to see the back to the window is to block the light.

1.Camera: In the system, the camera is at the forefront of the system, it converts the light image of the object into an electrical signal - ** signal, providing a signal source for the system, so it is one of the most important devices in the system.

2.Camera lens: the function of the camera optical lens is to focus the light image of the observed target on the CCD sensor device, the image produced on the sensor device will be the inverted image of the object, although the above purpose can be achieved with a simple convex lens, but the image quality at this time is not high, can not obtain a clear image in the center and the edge, for this reason a number of lens elements are often attached, form a composite lens, can get a satisfactory image.

3.Gimbal: It can be used with the camera to achieve the purpose of turning up, down, left and right.

Expanding the monitoring range of a camera, and at the same time being able to track the target and take pictures within a certain range, improves the practical value of the camera. Due to the different use environments, there are many types of gimbals.

4.Protective cover (dust cover) and bracket, decoder: The purpose of the dust cover is to protect the camera and lens from environmental conditions such as harmful gases, large dust, and intentional vandalism.

The decoder is used to complete the bus control of the camera lens and the pan tilt in all aspects.

The bracket is used as a support when the camera is installed and attaches the camera to the auxiliary device at the mounting site.

5.Monitor: A monitor is a terminal display device for a TV monitoring system. The state of the entire system is ultimately reflected on the monitored screen. The quality of the monitor directly affects the final effect of the whole system.

6.Signal transmission: When the monitoring site is close to the control center, the first image is used, and the control signal is directly transmitted, and when the distance is far, radio frequency, microwave, or optical fiber transmission is adopted.

Commonly used equipment are: coaxial cable, twisted pair, optical fiber. The transmission distance increases from near to far.

7.Control center control equipment and monitoring equipment: (1) Signal distribution amplifier; (2) Matrix (**Signal Switcher); 3) Terminal controller (operation keyboard); 4) Alarm Extension Printer.

5) Character generator, elevator floor superimposed display; 6) terminal decoder; (7) terminal controller; (8) Multiviewer;

Answer]: C camera backlight imaging will make the picture image darker, not conducive to the image ** attack, in order to make the overall picture brightness appropriate, often the camera is installed in the light. Before the screen is installed, the gimbal, lens and other equipment should be installed as a whole with the camera Li Feng's camera, so as to facilitate subsequent aerial operations.