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.
21. Why is video interference serious?
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 manual recording or scheduled recording is in progress, when there is an alarm recording, the system will have an alarm recording (indicator light), but the current alarm file cannot be retrieved during playback, and only one minute after the alarm can be retrieved. It is a normal situation because all the videos are recorded. To see this video, you can search by time or manually.
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 computer pairs?
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.
39, how to use dual network card?
The digital video recording system can only use the first network card on a computer with a dual network card. In particular, when a client uses a dual network card, it must use the first network card to connect a digital video recording host.
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.
51, how to set the video level?
Video level settings are best, good, good, and normal 4 levels.
52, there are several types of video?
There are continuous video, dynamic video, alarm video, time plan video and other methods.
53, the quality of video playback?
The video shows the highest quality of 560 lines, playback of the highest 460 lines (related to the camera and video level).
54. How is the image resolution?
The system's image display resolution is 352 X 288 pixels; video resolution is 352 X 288.
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.
21. Why is video interference serious?
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 manual recording or scheduled recording is in progress, when there is an alarm recording, the system will have an alarm recording (indicator light), but the current alarm file cannot be retrieved during playback, and only one minute after the alarm can be retrieved. It is a normal situation because all the videos are recorded. To see this video, you can search by time or manually.
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 computer pairs?
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.
39, how to use dual network card?
The digital video recording system can only use the first network card on a computer with a dual network card. In particular, when a client uses a dual network card, it must use the first network card to connect a digital video recording host.
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.
51, how to set the video level?
Video level settings are best, good, good, and normal 4 levels.
52, there are several types of video?
There are continuous video, dynamic video, alarm video, time plan video and other methods.
53, the quality of video playback?
The video shows the highest quality of 560 lines, playback of the highest 460 lines (related to the camera and video level).
54. How is the image resolution?
The system's image display resolution is 352 X 288 pixels; video resolution is 352 X 288.
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