1. Question: What is the cause of the jitter in the monitor display?
answer:
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", the new frequency is adjusted to 75HZ, after the exit can be resolved This problem.
2. Question: Why does the monitor appear with a screen saver or a black screen after boot monitoring for a period of time?
answer:
This situation is caused by not having to cancel 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 appears, select (none) to cancel the screen saver. Then click on the settings button in the lower right corner, select "Always open" in the power scheme, the system waits to select "never", close the monitor and select "never", "close the hard disk" where "never", and finally click "OK" can be.
3. Question: What is the reason why the digital hard disk recorder image shows only the image without the operation button or the screen is not full of the entire screen?
answer:
Under normal circumstances, the display resolution setting does not meet the requirements, the desktop resolution is set to 1024*768, and the small font can be changed to a large font.
4. Question: How should the HD video host be partitioned?
answer:
System main hard disk:
1) Create primary partition C: (2 to 3GB) (OS + application software.)
2) Create an extended partition (100% of the remaining hard disk)
3) create a logical partition in the extended partition D: (usually allocated about 4GB, mainly stored application backup and some video data)
4) Create logical partition E under the extended partition: (remaining hard disk space) (video data)
5. Why does the monitor have a screen saver or a black screen when the monitor is turned on for a while?
After exiting to the operating system interface, right-click on the interface, select Properties, select Screen Saver in the tab that appears, and select (none) to deactivate the screen saver. Then click on the settings button in the lower right corner, select "Always open" in the power scheme, the system waits to select "never", close the monitor and select "never", close the hard disk and select "never" and then OK.
6, why no boot?
Make sure the chassis and monitor are properly connected and the power is connected and turned on. In the process of transportation and moving, the body may loosen the internal card accessories. It is best to open the chassis before starting the machine and confirm that the components are plugged in and then turned on. If the main board self-test is abnormal during startup (normally, the keyboard indicator LED flashes once and the host buzzer emits a “beep†sound), please turn off the power and check whether the CPU board and video card are fully inserted and remove the board. Plug in again. If you press the power switch and the CPU fan does not turn and the panel power indicator does not light, check that the power supply is connected properly.
7. What kind of operating system can the hard disk video card work under?
Hard disk video card can be used above Windows/2000, support PNP function.
8. Why does the system crash? How to restore?
If the improper setting of windows or some other software failure causes the system to work abnormally, system crashes will occur. The following methods can be used to recover the system:
First: Windows registry method repair system. For example, if you do not open the monitor or the monitor is connected improperly when you start the system for a certain time, the system cannot be normally accessed when the system restarts. You can use the following steps to repair it.
Restart, hold down the F8 key during startup, select "Command Prompt only" in the boot mode selection menu, and after booting, type the following command line: scanreg /restore Select the date of the most recent system work to restore.
Second: When using the recovery registry can not solve the problem, you can use Ghost to restore the system, provided that you have used the Ghost backup system. Use method is to start (start with the hard disk or start the boot disk WIN98) to DOS state, run Ghost.exe, follow the prompts to complete the system recovery.
9. What should I do if there is no image display?
One reason: Due to incompatibility of the graphics card, the Direct Draw test can be used. If the test passes, this is not the reason.
Cause two: The PCI interface is not in good contact. You can switch to a PCI slot test.
Cause three: If the card is damaged, you can consider changing the card test.
10. Audio and video card driver installation instructions.
The driver for the video card cannot be installed in more than one. Only check the complete number of drivers 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 more than the number of installed video cards, the system sometimes does not work properly.
Note: Four-way real-time cards are equivalent to four separate cards, four drivers need to be installed, and the other audio and video cards install one driver per card! If you find this phenomenon, you should put all video cards in 'safe mode' Remove all the drivers (including other duplicate devices of the system), and then restart the computer.
11. Why can't the computer find the card?
Cause one: The computer power supply is not ATX power supply. Please use ATX power supply.
Cause two: The computer's PCI slot is damaged. Please change it to a slot test.
Cause 3: The card is damaged. Please change the card test.
12. What should I do if the video playback quality is poor?
For our hard disk recorder under the 'normal' compression quality, video playback quality is satisfactory. But sometimes the phenomenon of 'mosaic' is found to be serious. Especially for moving images, the image becomes blurred. The main reason is that your camera's brightness is too low (do not try to change the brightness of the hard disk recorder to compensate). Adjust the brightness of the camera to compensate. This should pay special attention to the construction of the project.
13. What if the real-time monitoring image is not clear?
In the system setting of the digital hard disk recorder, "common camera" or "high definition camera" can be selected according to the model or the resolution of the configured camera; at the same time, the brightness, chroma, contrast and saturation of the video can also be adjusted. Value to achieve satisfactory results.
14, the program can not start or initialization failed how to do?
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 two: There is no installation of DirectX 8.0 or later acceleration software.
Cause 3: The card model has not been correctly identified. Run the Config.exe program to identify the card.
Cause four: The power supply is not ATX power supply or the power supply power is not enough. Switch to a high-power ATX power supply.
Cause five: The board is in poor contact and reinstall the board.
Cause six: The software and card are not compatible, that is, they are not compatible. Contact the product supplier.
Cause seven: There is a bad card and you need to confirm the availability of each card.
Cause 8: The PCI slot is damaged. Replace the slot.
15. What if the monitor button does not work?
Cause one: No audio is used or the selected channel does not have audio.
Cause two: The sound card is not installed or the sound card driver is not installed.
Cause 3: The sound card is not working properly. We recommend using the Direct Sound test by running the Dxdiag.exe program in the C:\WINDOWS\SYSTEM directory to test the working status of the sound card. If the test fails, follow the instructions below:
First: Restart the computer to "safe mode", open the device manager, remove all duplicate device drivers, restart the installation of the driver, run the Dxdiag.exe program test, can pass the test. If it still doesn't work, press a step.
Second: If there is a problem with the integrated sound card, during the replacement of the sound card, please shield the integrated sound card in the BIOS, otherwise it cannot be used; for a sound card, run the Dxdiag.exe program test, if you can not pass the test, you can only replace Motherboard.
16, audio monitoring, playback is not normal how to do?
If the audio monitored and played back is not normal, the possible causes are:
Cause one: system compatibility caused.
When using the IPC to install the system, it is recommended that the audio card be installed in the basic PCI slot (* the slot near the CPU board).
Cause two: The driver of the sound card driver or system device is installed incorrectly.
In secure mode, check the sound card and system device drivers, remove duplicate device drivers, restart the computer, and install the driver provided by the product vendor. And using DirectSound testing, it is best to use a sound card with software buffering and hardware buffering.
17. Monitor is normal, but no sound is played back?
The reason is that "Allow recording" is not set. Start audio in the software settings.
18. Why is the image still?
It may be that the audio and video card is dead. It may be that the audio and video card is not in good contact with the PCI slot of the computer. You can turn off the computer and restart the computer. If there is a more frequent dead card phenomenon, you can consider changing the card; if not very often The situation may be because the system working time is too long, you can set the system to restart at regular intervals to relieve the system working 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 does the setting not work?
All settings are valid at the beginning of the next minute after the setting is completed.
20. Why is the front end control inflexible?
The possible reason is that the connection between the decoder and the PTZ is not good, or the communication cable is too long. Generally, the decoder and PTZ are installed near the decoder. That is, the decoder is generally installed near the PTZ.
Cause one: The video cable interface is not in good contact.
Cause two: The video cable is disturbed by strong electricity, and the video cable cannot be routed along with the strong electricity line.
Cause three: The camera cannot be grounded. In the entire system, only the center can be used for single-point grounding, and the multi-point grounding cannot be used, otherwise it will cause common-mode interference.
22. Why is there no image display after the computer restarts?
The reason is that the computer reset time and audio and video card reset time are not synchronized. If this phenomenon occurs frequently, contact the product supplier.
23, why the system timing crashes?
If you encounter a digital hard disk video system is more than a regular crash, such as: every morning around 7:30 crashes. This situation is usually easy to appear in the factory, because the factory's strong electric shock to the video cable, so that the video card does not work, causing the system to crash. Only improving the power supply or isolating the digital video recording system can solve the problem.
24. Why is the mobile alarm inaccurate?
The accuracy of the motion detection alarm is related to the camera. Each camera can be tested by the mobile detection sensitivity test function to find out the sensitivity value that can be accurately detected.
25. Why can't the alarm video be retrieved?
If you are manually recording or recording regularly, when there is an alarm recording, the system will have an alarm recording indicator (indicator light). This is normal because all recordings have been recorded. You can watch this recording by timing or Manually search.
26. Why is no alarm detected?
Cause one: The alarm detection time switch is not turned on.
Cause two: The alarm controller power is not turned on.
Cause three: The alarm controller and the computer serial port are connected incorrectly. The alarm controller can only be connected to the serial port 1 of the computer. If multiple alarm controllers are used, they must be connected through an RS232/RS485 converter because RS232 can only be connected point-to-point and cannot be connected in parallel. When there is only one device, when the communication distance is not too far (within 12M), it can be directly connected with the computer, pay attention to the correct connection of TX, RX and GND, pin 3 of the computer serial port I and the RX of the alarm controller ( R232) Connect, pin 2 of the computer to the TX (T232) connection of the alarm controller, GND to GND.
Cause four: The moving alarm area is not set or the sensitivity is too low.
25, why the false alarm?
Cause one: The sensitivity of the mobile alarm is too high. You can pass the test and select the appropriate sensitivity value.
Cause two: The alarm probe and the alarm controller are connected incorrectly. Please connect correctly according to the instructions.
26. Why is the system slow and the image jittering?
Cause one: The reason for the slow system speed may be due to the use of non-Intel chipset motherboards or CPU speed is low.
Second reason: The hard disk data line does not use ATA66 or ATA100 high-speed data lines or data lines reversed (color head connected to the motherboard IDE seat).
27. Why is there a frame dropping phenomenon in image playback?
Exit the monitoring program and use the playback wizard to play. If there is the same situation, there is indeed a drop frame phenomenon. You can view the system work status from other aspects, check the CPU speed, memory work status, etc.; otherwise, the same as the previous "The system is very slow and the image jumps "The reason is the same.
28, Why can't the extended IDE interface work properly?
The motherboard driver is not installed properly or the IDE card driver is not installed correctly.
29. Why is the blue screen phenomenon frequently occurring?
Cause one: The memory is not working properly, and you can replace the memory for testing.
Cause two: The operating system has an error, such as: virus intrusion, etc. Please check the virus and restore the system.
30. Why is the system unable to record?
Cause one: No video is set (timing video, manual video), all settings are valid at the beginning of the next minute after the setting is completed.
Cause two: The disk space is not enough. An error on the disk causes the system to calculate the disk space. After scanning the disk, you can recover it.
31. Why can't it be covered automatically?
Cause one: There is no "Delete oldest file after disk full".
Cause two: The disk has a logical error. After the disk is scanned, it can be restored to normal.
32. Why does the client prompt for network initialization error when connecting to the host?
Cause one: The network card is not working properly and the network is disconnected. Please check the driver of the network card and whether "TCP/IP protocol" has been added.
Cause two: In the local area network, the client does not specify the IP address of the network adapter. If the client is connected to the Internet, the IP address is automatically obtained. You cannot specify the IP address. Otherwise, this prompt may occur.
33. Why failed to connect to the server?
Cause one: The network is disconnected. You can use the PING command to test the network continuity status.
Cause two: The server IP and port number are set incorrectly.
Cause three: The server did not provide the registration password or the login user name and password were incorrect.
Cause four: The client user does not have a registered user or does not have permission to use it.
34. Why is the network client image quality poor?
One reason: There is no installation of DirectX 8.0 or later acceleration software.
Cause two: The network bandwidth is insufficient. In theory, the bandwidth of 512Kbps can completely achieve real-time audio and video transmission of all the way, but it is not possible to achieve real-time transmission of two-channel audio and video at 1Mbps, because the so-called bandwidth is only theoretical, and there is a problem of network transmission efficiency. Under the network conditions, there are differences in the efficiency of network transmission.
35. Why is the network client image confusion?
When using two or more servers in the same LAN, set the multicast group IP address or port number to the same (it should have an independent multicast group IP address and port number for each), and change this setting.
36, why the client can not be remotely controlled?
Cause one: The host does not have a front-end controllable device such as a decoder.
Cause two: The server does not provide control rights to the client.
37. Why can the client only see images all the way?
When the server sets the network mode to unicast or TCP/IP, the client can only watch one at a time. Multicast mode can see multiple pictures.
If the network is connected through a switch or router, when using a multicast protocol, it must be confirmed that the switch or router supports the multicast protocol; otherwise, the multicast protocol cannot be used.
38, how to achieve two computers to company?
Two computers can be connected by cables to form a simple LAN.
Method: Use a Category 5 twisted pair to interconnect through a network card. The connection method is: asymmetric twisted pair, that is, 1, 2, 3, 4, 5, 6 corresponds to 3, 6, 1, 4, 5, 2 respectively; The network cable connected to the HUB or switch is a symmetrical twisted pair. That is, 1, 2, 3, 4, 5, and 6 correspond to 1, 2, 3, 4, 5, and 6, respectively.
40, how to achieve remote monitoring?
Key point 1: There is a network that can be used by the monitoring system.
Point 2: It can provide a fixed IP address for digital hard disk recorders.
1. Within the LAN, manually assign a fixed IP address.
2. Internet, apply for a fixed IP address.
3. Telephone (ISDN, PSTN) For dialing, assign a fixed IP address to the "dial adapter".
Point 3: The client can obtain the IP address. If it is in the LAN, manually specify an IP address.
Point 4: The client can use the PING command to test the connection status with the server and confirm that it can PING.
Key 5: The client sets the correct server IP address and port number.
Point 6: The server provides the client with a registration password and the corresponding usage rights.
41. Is the installation of the software platform convenient?
The installation of application software comes with an installation wizard, which is easy to install. The application software generates information in the operating system registry.
42, whether to use standardized hardware components?
Standardization of hardware assembly, support industrial control board [ICP, EVOC, North China Industrial Control can be, ordinary PC motherboard support (Intel chipset) Biostar, ABIT, Asus, etc..
43. Does the system have password protection function?
Have. The system has a registered password, a client password, etc. The password-controlled permission levels (playback, control, settings, etc.) are not the same.
44. The stability of the host device in a 24-hour video recording job?
The system is very stable for 24 hours a day for six consecutive months.
45. Does the local host software use software dogs?
The newly developed MPEG4 hardware compressed video card no longer requires software dog support.
46. ​​Does the standard host include a network transmission section?
Host network transmission is powerful, with local area network, wide area network, broadband network, Internet and other remote transmission and control functions. Among them, the four-channel audio and video synchronization transmission and recording in the domain network.
47, There are several different versions of the software? (Not an upgraded version, but an operating version)
The software operation version is the official operation version to ensure stable operation. The software supports the WIN2000 operating system.
48, the local host can install several hard drives?
The common industrial control chassis internally supports 8 hard disks, and the dedicated chassis supports 12 hard disks.
49, local image display quality? Is it full screen? (For different operating versions)
Local image display quality up to 560TVLine (related to the camera), display and playback can be full-screen, real-time monitoring can hide the interface.
50. Is local playback multi-channel playback?
Yes, four-way simultaneous playback is currently being performed and eight-way playback is being performed.