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Security Engineer Summary: Monitoring and Troubleshooting
Monitoring faults appear in many actual weak power projects. In our weak vip communication group, the most frequently mentioned monitoring problems are mentioned, so let's take a look at most of the monitoring fault resolution methods today.
Monitoring fault resolution
1. What is the reason why the display display has a sense of jitter?
This situation is generally caused by the display refresh rate setting is too low, enter the "display properties" click "Settings", select "Advanced", then select "Monitor", adjust the new frequency to 75HZ, determine the exit can be resolved This problem.
2. Why does the monitor appear screen saver or black screen after booting for a period of time?
This situation is caused by not canceling the screen saver or improper power management settings. The solution is to exit from the monitoring system to the WINDOWS operating system interface, right click on the interface, select "Properties", select the screen saver in the tab that appears, select (none) to cancel the screen saver. Then click the Settings button in the lower right corner, select "Always open" in the power usage scheme, the system waits for "Never", closes the monitor and selects "Never", "Close the hard disk", select "Never", and finally click "OK" is fine.
3. The digital hard disk recorder image shows that only the image does not have an operation button or the screen is not full of the entire screen. What is the reason?
In general, the display resolution setting does not meet the requirements, set the desktop resolution to 1024*768, and change the small font to a large font.
4. How should the hard disk recording host be partitioned?
System main hard disk:
1) Create a primary partition C: (2 to 3GB) (operating system + application software.)
2) Create an extended partition (100% of the remaining hard disk)
3) Create a logical partition D under the extended partition: (usually allocated about 4GB, mainly stored in the application backup and a part of the video data)
4) Create a logical partition E under the extended partition: (remaining hard disk space) (video material)
5. Why does the monitor appear screen saver or black screen after booting for a period of time?
After exiting to the operating system interface, right click on the interface, select the property, select the screen saver in the tab that appears, and select (none) to cancel the screen saver. Then click the Settings button in the lower right corner, select "Always open" in the power usage scheme, the system waits for "Never", closes the monitor and selects "Never", closes the hard disk and selects "Never" and then confirms.
6. Why is there no display when booting?
Make sure the chassis and monitor are properly connected and the power is connected and turned on. During the transportation and moving process, the internal board components may be loosened. Before starting the machine, open the chassis as much as possible, and confirm that the components are plugged in tightly and then power on. If the motherboard self-test is not normal during booting (normally, the keyboard indicator LED flashes once and the host buzzer sounds "嘀"), please turn off the power, check whether the CPU board and graphics card are fully inserted, and remove the card. Plug it in again. If the CPU fan does not turn and the panel power indicator does not light after pressing the power switch, check that the power supply is properly connected.
7. What kind of operating system can the hard disk video card work under?
The hard disk video card can be used on Windows/2000 or above and supports PNP function.
8. Why is there a system crash? How to recover?
A system crash occurs when improper settings for Windows or other software failures cause the system to work improperly. The system can be restored in the following ways:
First: the windows registry method to repair the system. For example, when the system is started, the monitor is not turned on or the monitor is not connected properly, which may cause the system to enter Windows without restarting. You can repair it as follows.
Restart, press and hold the F8 key during startup, select "Command Prompt only" in the startup mode selection menu, and type the following command line after startup: scanreg /restore selects the date when the system is working normally.
Second: When using the recovery registry does not solve the problem, you can use Ghost to restore the system, provided that the Ghost backup system has been used. The method of use is to start (boot with hard disk or boot from WIN98 boot disk) to DOS state, run Ghost.exe, follow the prompts to complete system recovery.
9. What should I do if there is no image display?
Cause one: The graphics card is incompatible. It can be tested by Direct Draw. If the test can pass, this is not the reason.
Cause two: The PCI interface is not in good contact. You can change the PCI slot test.
Reason 3: If the board is damaged, consider changing the card test.
10. Installation instructions for audio and video card drivers.
The driver for the video card cannot be loaded, only the full number of drivers is viewed in safe mode.
Example: You have 8 cards plugged into the motherboard. You can only install 8 drivers. You should check the number of audio and video card drivers in 'Safe Mode'. If the video card driver is redundant with the number of video cards installed, the system sometimes does not work properly.
Note: The four-way real-time card is equivalent to 4 independent cards. You need to install 4 drivers. The rest of the audio and video cards are installed with one driver per card! If you find this phenomenon, you should put all the video cards in 'safe mode'. All drivers are removed (including other duplicate devices of the system) and then restarted.
11. Why can't the computer find the card?
Cause one: The computer power supply is not an ATX power supply. Please use ATX power.
Cause two: The computer PCI slot is damaged. Please change to a slot test.
Cause three: The board is damaged. Please change the card test.
12. What should I do if the video playback quality is poor?
For our DVR's 'normal' compression quality, the video playback quality is satisfactory. But sometimes the 'mosaic' phenomenon is more serious, especially for moving images, the image becomes blurred, the main reason is that your camera brightness is too low (do not try to change the brightness of the DVR to compensate), you have to re Adjust the brightness of the camera to compensate. This point should be paid special attention to during construction.
13. What should I do if the image monitored in real time is not clear?
In the system settings of the digital video recorder, you can select "normal camera" or "high definition camera" according to the model or resolution of the configured camera. At the same time, you can also adjust the brightness, chroma, contrast and saturation of the video. Value to achieve a satisfactory result.
14. What should I do if the program cannot be started or failed to initialize?
Cause one: The shortcut is wrong. Unable to hook the application, the shortcut does not start, delete the shortcut and recreate or reinstall the program.
Reason 2: There is no acceleration software installed with DirectX8.0 or higher.
Cause three: The card model is not recognized correctly. Run the Config.exe program and the identification card is available.
Reason 4: The power supply is not ATX power supply or the power supply is not enough. Use high power ATX power supply.
Cause five: The board is in poor contact and the board is reinstalled.
Reason 6: The software and the card are not compatible, that is, they are not compatible. Contact the product supplier.
Reason seven: There is a bad card, and each card needs to be confirmed for availability.
Cause eight: The PCI slot is damaged and the slot is used.
15. What should I do if the monitor button does not work?
Cause one: no audio is used or the selected channel has no audio.
Cause two: The sound card is not installed or the sound card driver is not installed.
Cause three: The sound card is not working properly. It is recommended to use the Direct Sound test by running the Dxdiag.exe program in the C:\WINDOWS\SYSTEM directory to test the sound card working status. If the test does not pass, please follow the method:
First: restart the computer to "safe mode", open the device manager, delete all duplicate device drivers, restart the installation driver, run the Dxdiag.exe program test, can pass the test. If it still doesn't work, please follow a step.
Second: If there is a problem with the integrated sound card, please replace the integrated sound card in the BIOS when replacing the sound card, otherwise it can't be used; change the sound card and run the Dxdiag.exe program test. If it can't pass the test, it can only be replaced. The motherboard is gone.
16, audio monitoring, playback is not normal how to do?
If the audio monitored and played back is not normal, the possible reasons are:
Reason one: the compatibility of the system. When installing this system with an industrial computer, it is recommended that the audio card be installed in the basic PCI slot (* near the slot of the CPU board).
Cause two: The driver of the sound card driver or system device is incorrectly installed. In safe mode, check the sound card and system device drivers, remove duplicate device drivers, restart the computer, and install the drivers provided by the product vendor. And use the DirectSound test, try to use a sound card with software buffer and hardware buffer.
17, the monitor is normal, but no sound playback?
The reason is that "Allow recording" is not set, and the audio can be started in the software settings.
18. Why is the image still?
It may be that the audio and video card has crashed. It may be that the audio and video card and the PCI slot of the computer are not in good contact. You can turn off the computer and restart the computer. If there is a frequent dead card phenomenon, consider changing the card; if not very frequently The situation may be because the system works too long, you can set the system to restart every day to ease the system work pressure and release the memory; you can also add a reset line connected to the computer on a certain card of the system to achieve automatic recovery. The purpose of the system.
19. Why doesn't the settings work?
All settings are valid at the beginning of the next minute after the setup is complete.
20. Why is front-end control not flexible?
The possible cause is that the decoder and the PTZ are not well connected, or the communication cable is too long. The general method of use is that the decoder and the PTZ are installed nearby, that is, the decoder is generally installed near the PTZ.