1. What is the initial password of Haikang video recorder?
Haikang series network equipment user name and password are the same.
Username: admin password: *****
2. What is the initial password of Dahua Video Recorder?
Username: admin Password: admin
Username: 888888 Password: 888888
Username: 666666 Password: 666666
3. How does Haikang's default password change?
Main Menu - System Configuration - User Configuration - Change Password
4. How does the network camera calculate storage space?
Number of cameras * Image rate * Storage time / 8
5. How to connect the webcam alarm?
Need a camera that supports alarm input, "Alarm in" on the tail line of the camera
6, how to connect the webcam audio?
A camera that supports audio, with the words "A in" or "Audio in" on the tail line of the camera
7. How to add Haikang video recorder?
1. Automatically add, NVR automatically scans, you can display all online cameras, select “Add allâ€; 2. Add manually, select the corresponding channel, click “Edit†to input relevant information of the camera, “OKâ€
8. How does Haikang camera change IP?
1. Open the camera's management interface from the computer browser, find the network option, fill in the address to be changed; 2. From the NVR, after searching for the camera, click “Edit†to enter the changed address.
9, how to change the address code of the ball machine?
Network dome players generally do not need to change the address code. There are two ways to change the address code of the analog dome: 1. Hard switch change, there is a corresponding dial switch on the movement of the dome camera, generally binary, toggle switch, adjust to the required address; 2, software modification Through the preset position, the ball machine menu is called, and there is an address code modification option, and the modification can be entered.
10. How to change the baud rate of the ball machine?
Modify the address code
11. How far can the POE switch pass?
In theory, the POE power supply distance is not lower than the signal transmission distance of the same network cable.
12. How to calculate power for centralized DC power supply?
The general camera is powered by DC12V1A. For cameras with infrared fill light, it is necessary to make a certain amount of current redundancy. Select DC12V2A power supply to prevent the camera from running out of power when switching to infrared mode.
13. How long can the SYV75-3 video cable transmit?
In theory, the SYV75-3 video cable can transmit 300 meters. In actual projects, few people do this, and within 75 meters, 75-3.
14. How long can the SYV75-5 video cable transmit?
In theory, the SYV75-5 video cable can transmit 500 meters. In actual projects, few people do this, and within 75 meters, 75-5.
15. The hard disk recorder formatted the hard disk is very slow, what is the reason?
This should be a hard disk problem, you can try to replace the hard disk
16. What is the reason for the old drop of the network camera?
1, the power supply is unstable 2, the network is not in good contact, the network cable is not doing well
17, network camera, serious, what is the reason?
The camera code stream is too large, and the bandwidth of the switch and NVR is not enough.
18, how to set up the decoder on the wall?
Enter the decoder address through the computer browser, enter the decoder's management interface to set up, or have settings through the IVMS4200 client software.
19. How to determine the number of millimeters of the lens?
In general, the distance required by the location is divided by 2 and then divided by 1000 to obtain the number of millimeters of the lens, and then the number of millimeters is appropriately adjusted according to the required angle of illumination.
20. Where is the focus camera adjusted?
“FOCUS†and “ZOOM†on the side or the rear of the camera can be adjusted with a screwdriver.
21. How to upgrade the recorder software?
Main Menu - System Maintenance - Version Upgrade - Select upgrade package provided by Haikang
22, Haikang camera IP address on the NVR how to change?
After scanning the camera on the NVR, select the camera - edit - modify the IP address
23, how to choose the disk array?
First calculate the storage capacity required for all front-end camera images, divide by the capacity of a single hard disk, get the number of disk, plus the number of management disks required for RAID, the number of hot spares, and get the number of array disks.
24. How does the recorder set the IP address?
Main Menu - System Configuration - Network Configuration - Basic Configuration - Fill in the IPV4 address, subnet mask, gateway.
25. How is the network dome controlled?
NVR, computer client, and network keyboard can control the network dome.
What is 26, 485?
485 communication interface A hardware description of the communication interface. It only requires two communication lines, that is, data transmission between two or more devices. This data transmission connection is a half-duplex communication method. A device can only send data or receive data. The 485 for security monitoring generally refers to the PTZ control interface. After the protocol and rate between the control device and the controlled device are set, the control operation can be performed.
27. How is the 485 line of the recorder connected to the dome?
The 485 interface of the recorder has TX+ and TX-, which can be connected to the “+†and “-†of the 485 of the dome camera.
28. How to format the hard disk through the recorder?
Main Menu - Hard Disk Management - Check the hard disk that needs to be formatted - Initialize
29. What is wide dynamic?
Wide dynamic technology is a technique that allows the camera to see the characteristics of the image under very strong fiber contrast. When a high-luminance area illuminated by a strong light source (daylight, luminaire, or reflective) and a relatively low-intensity area such as a shadow or a backlight are simultaneously present in the image, a bright area appears in the image output by the camera, and the exposure is excessive. White, while the dark area becomes black due to underexposure, which seriously affects the image quality. The camera has limitations in the performance of the brightest area and the darker area in the same scene. This limitation is usually referred to as the "dynamic range".
30. What is a video optical transceiver?
Apparatus for photoelectrically converting an image of an analog camera
31. What is a fiber optic transceiver?
A device that photoelectrically converts signals of a network system.
32. How to configure the fiber according to the actual situation?
The fiber type and the number of cores are selected according to the total number of cores and the transmission mode required by the system optical transmission device. The number of fibers is determined based on the distance that needs to be transmitted.
33. How far is the fiber transceiver configured?
After the transmission distance of the network cable is exceeded (generally 100 meters), it should be considered to be transmitted by optical fiber.
34. Can the camera disassemble the demodulator when the lens is loose?
Yes, you can turn on the camera's shield adjustment.
35, how to debug the remote?
1. Enter System Settings in the main menu - Network Settings - DDNS - Enable DDNS Checking - Select the appropriate domain name service station in the DDNS type - enter the username and password registered at this URL - OK. 2, enter the router access to the recorder, find the "forwarding rules" option, add the forwarding port, Haikang port is 80, 8000, and then save.
36. How to set up a fluorite cloud?
There are 3 steps to set up fluorite cloud: 1. Haikang supports a fluorite cloud device with a two-dimensional code on the body. Scan the QR code with your mobile phone, it will pop up the fluorite APP, download and install the app.
2. After installing the fluorite cloud video, register an account with the mobile phone number and log in;
3. Click the “+†in the upper right corner to pop up the Add Device window and scan the QR code on the camera. The setting is successful.
37, how to set up the port of Haikang remote access router?
Hikvision's factory default port is HTTP: 80, service port number: 8000
38. What is the reason why the analog recorder can't find the mouse?
1. If it is the mouse that Haikong comes with, press the middle wheel several times in a row. If not, change the USB interface. 2. Change the main output port in the system settings.
39, 3 million camera one hour video memory is how much?
3 million camera 1 hour video storage takes up about 3G. According to the size of the code stream set by the camera, the required hard disk storage space will be different.
40, 2 million camera one hour video memory is how much?
2 million camera 1 hour video storage takes up about 2G. According to the size of the code stream set by the camera, the required hard disk storage space will be different.
41. What transmission line does the analog camera use?
Generally, coaxial cables are used. Specifications: SYV75-5, SYV75-3, for special occasions, twisted pair transmitters, multiplexers, etc. are also useful.
42. What is the farthest distance of the network cable?
In theory, it can reach 150 meters, and in practice it is limited to 100 meters.
43. Under what circumstances do you choose fiber transmission?
When the electrical signal cannot meet the transmission distance, consider using optical fiber transmission.
44, how to choose a switch, how to configure the recorder and switch?
Total number of cameras * Stream of the camera = bandwidth required for the switch. Switch Bandwidth = Nominal Bandwidth * Utilization, typically at 50%.
45, how the switch calculates power
The power of the switch is marked on the device nameplate and no calculation is required.
46, how to select the number of hard disks according to the time of recording
First calculate the storage capacity required for all front-end camera images, divide by the capacity of a single hard disk, and get the number of disk.
When 47, 3 million access to the 16-channel 2 million video recorder, the number of access roads needs to be halved?
Number of access channels of network video recorder = total bandwidth of video recorder ÷ camera code stream, the larger the code stream, the fewer the number of access channels, the theoretical 3 megapixel camera is 1/3 larger than the 2 million camera stream
48. How to choose the platform integrated machine and decoder?
The platform integrated machine integrates functions such as decoding, management and splicing into one device. The decoder is only decoding, wall (splicing, screen segmentation), and can be selected according to the user's functional requirements.
49. How many people can Haikang remote support at the same time?
Allow up to 10 simultaneous visits
50, the role of streaming media server?
When a large number of client goods WEB access surveillance cameras, the general video recorder can not withstand too much network pressure. At this time, the streaming media server needs to be forwarded to transfer the client's access pressure to the server.
51. Do you still need a video recorder when using a disk array?
The storage function of the disk array, the data is stored in it, and a storage server is needed to manage it. In general, there is no need for a video recorder for a disk array?
52, the difference between the one machine and the movement?
The movement is an all-in-one machine without a casing. The integrated machine can work independently and the movement cannot work independently. Need to be connected to the dome to work properly
53. What is the difference between LED lights and dot matrix lights?
The two lamps are essentially the same, and the dot matrix lamps are more powerful and have a longer life than ordinary LED lamps.
54. How to solve the problem that the camera is connected to the recorder?
1. Network physical connection problem 2. The IP address of the camera or recorder is not on the same network segment, or the port and username and password are incorrect.
55, the difference between the ball machine and the cloud machine
The dome camera generally has no elevation angle or an angle of elevation with a small angle (up to 20 degrees), and the pan/tilt machine can have an elevation angle of 90 degrees.
56. Haikang's analog DVR directly connected to CVBS (BNC) Why can't I recognize the mouse?
In the system settings, change the main output port.
57. Can Haikang's network hard disk recorder support 960H encoding?
stand by
58. Does Hikvision's all DVRs support fluorite clouds?
At present, all of Haikang's channel models support fluorite clouds. The project model is not supported at this time.
59. What are the main differences between Haikang's analog video recorders and network hard disk recorders?
The image signal connected to the analog recorder is a BNC analog signal, which can be directly previewed and encoded. The network video recorder accesses the network signal of the network camera and displays and records it through the decoder.
60. Can Haikang's analog video recorder support an external Haikang keyboard?
Haikang analog video recorder can not directly connect to the keyboard
61. Does Haikang network camera support POE? How to distinguish?
The number in the camera model with the letter "D" on the back is DC power supply, does not support POE, without the letter "D"
, support POE power supply
62, how to distinguish the network DVR with or without CVBS (BNC) output?
The hardware interface behind the host has the word CVBSOUT, which means that the BNC output function is supported.
63, the network camera sometimes can not switch day and night is what is the reason?
The camera cannot be switched to black and white. Under normal circumstances, the illumination of the light is not low enough to cut from black and white to color. The illumination of the ambient light is not bright enough. When the illumination of the ambient light reaches the critical value of the photosensitive resistor switching, frequent switching will occur.
64. How to calculate the number of hybrid recorders connected to the network and simulation?
The number of analog camera accesses does not need to be calculated, and the number of BNC input interfaces on the recorder is the upper limit. The network camera can multiply the camera's pixel height by the number of cameras, which is smaller than the network access bandwidth of the recorder. One analog signal can be disabled, and one network signal can be added.
65, NVR status indicates what is the meaning of insufficient resources?
The pixel rate of the IPC exceeds the decoding upper limit bandwidth of the camera, and the code stream of the camera can be appropriately lowered.
66. What should I do if the IPC is not displayed online after it is added?
1. The IP address setting of the IPC is not on the same network segment as the NVR address.
2, the network connection is not smooth, check whether the 8 cores of the network cable are all tested.
67. What should I do if there is no sound in the local preview?
1. First confirm whether the audio cable and the pickup power cable are connected properly.
2. Is the sound switch of the preview interface open?
68. How to choose the camera lens millimeter?
The general situation is to divide the distance required by the field by 2 and divide by 1000 to get the required number of millimeters of the lens. Then adjust the millimeter according to the required angle of illumination. The larger the angle of illumination, the smaller the lens. .
69, IE can use the domain name to visit the device, the client is not allowed?
Accessible
70. Why use the mobile client software to preview the image black screen?
1. The server is not online. 2. The device added to the client is incorrect. The IP address, port, username, and password are incorrect.
71. What is the source of the moiré in the elevator image and how does it form the interference loop?
1. The elevator is in poor contact with the cable. 2. When the elevator is running, there is strong interference in the elevator shaft.
72. What is the difference between four 6701HW and one 6704HW encoder?
The 6701HW is suitable for use in a relatively dispersed installation environment. The 6704HW is suitable for use in a relatively centralized installation of cameras.
73. How to route the camera's centralized power supply?
The so-called centralized power supply means that all front-end equipment is powered, and is provided uniformly from the back-end central control room. There are two cases: 1. Centrally provide the mains to the front end, and the power adapter of the camera is placed on the camera. In this case, the power line should be separated from the video signal line. The power line must be protected by JDG tube. The DC power required by the camera is placed at the front end, and the camera power adapter is placed in the back control room. In this case, the power cable and the video cable can share the same line. If the requirements are not strict, the PVC pipe can be used. At the same time, pay attention to the relationship between DC transmission distance and wire diameter. The farther the transmission is, the larger the required wire diameter.
74. The analog lens can also be displayed on the network camera. How to explain it?
The analog lens can be used on a network camera, but the resolution is reduced. If the image quality is not high, it can be used.
75. A boiler room in a steelmaking plant, the room temperature is mostly between 80-150 degrees, and sometimes it will reach nearly 200 degrees with Haikang explosion-proof equipment. Can it be solved?
Can not be solved, need to use a shield with temperature control
76. The role of the matrix?
1. Switch the image of any camera to any monitor on the TV wall. 2. Control the pan/tilt camera on the front end, turn, zoom, etc.
77. Can the VGA matrix replace the decoder? If not, what are the differences?
The VGA matrix is ​​not a substitute for the decoder. VGA matrix, just make a switch to the VGA signal on the big screen, does not have the network decoding function, in addition to the network decoding function, the decoder also has the VGA matrix switching function.
78, how to debug the decoder
Enter the decoder address in the address bar of the computer browser to enter the WEB management interface of the decoder, or use the IVMS4200 client software to enter the debugging in the device management options.
79. What is the difference between Haikang server and other servers?
The hardware configuration is not much different from other brand servers on the market, and the software compatibility is better.
80, how to set up 7X24 hours automatic recording?
Click on the "Main Menu" - Video Configuration - Edit - Full Day Video - Copy - Select "All Weeks" - OK - OK - Copy - Select "All Channels" - OK, Exit
81, Haikang video recorder can not boot?
1. Check if the power cable is plugged in. 2. Is the switch on the host power supply turned on? 3. The hard disk is faulty.
82, Haikang video recorder can not record?
1. The recording schedule does not set the recording time, the recording type 2, the system setting does not set the hard disk as the read/write disk 3, the hard disk does not set the recording automatic coverage 4, the hard disk failure
83. Is there a time difference between Haikang video recorders?
1, the system time is not set correctly 2, the camera code stream is too large, the image time delay
84, Haikang video recorder can not play back?
1. Check the recording time, recording type 2, hard disk failure in the recording plan.
85, Haikang video recorder does not recognize the hard disk?
1, hard disk failure 2, in the "disk management" in the SMART configuration "when the disk evaluation fails to continue to use" before the check
86, Haikang video recorder to start with an alarm
1, hard disk error 2, network disconnected, image loss 3, IP address conflict
87. How to achieve wireless transmission when there are many partition walls?
All wireless devices cannot penetrate multiple walls. In environments with many partitions, wireless transmission is not recommended.
88, two million and three million are the same storage space?
Theoretically different, 300W is 50% more storage space than 200W. The pixel code stream in IPC can be adjusted. In the case of tight storage space, 300W and 200W can appropriately lower the code rate.
Why do the 89 and 16 network video recorders connect 13 1.3 million POE hemispheres?
1. The bandwidth of the switch is not enough. 2. The camera stream is set too large.
90. Why is the analog elevator camera connected properly?
The power supply voltage is unstable, and the power supply is insufficient when the elevator is running.
91. If a backend has a computer, do you still need a network keyboard? Can't I use the keyboard of my computer to control it?
From a functional point of view, a computer mouse can realize the function of a network keyboard. But the operation is not as convenient as the keyboard. The keyboard on the computer does not replace the network keyboard.
92. Can the network dome camera be controlled by analog keyboard?
Can not be controlled, the analog keyboard has no decoding function.
93. How to choose the decoding device reasonably?
According to the resolution of the camera, select the resolution of the decoder, the number of decoding channels, and select the number of output ports of the decoder according to the number of large screens.
94. How far can the camera look at normal during the day?
The illumination distance of the camera, the size of the lens, the intensity of the light, and the air condition, the specific illumination distance cannot be generalized.
95. Can a mobile phone connect several cameras?
Fluorite software can only open one image at a time, IVMS4500 can open 4 screens
96. After the camera is equipped with audio, is the storage space required for recording much larger than without audio?
Adding audio to the image will take up storage space, but not too large, basically negligible
97, the recorder refreshes the search for the camera IP?
Network connection is unreachable
98, monitoring shows no monitor, how do you want to use your own desktop computer?
RJ45 interface on the recorder, connected to the computer with a network cable, access the video recorder image through the computer client software
99, Dahua's video recorder, Haikang's camera, how to adjust?
When adding a device to a channel, the protocol can be tuned by selecting Onvif.
100, the recorder does not recognize the mouse, how to debug?
If it is Haikong's own mouse, first press the middle wheel a few times, if not, change the USB
101. How does the infrared gun turn off the infrared light?
1. Enhance the illuminance 2. Disconnect the camera and disconnect the photoresistor (not recommended) 3. The network camera can turn off the infrared light from the settings.
102, how is the motion detection set?
Main Menu - Channel Management - Motion Detection - Activate Motion Detection Tick - Set Detection Sensitivity and Detection Range
103, the pickup of the pickup?
The pickups on the market generally provide three wires, the power cable + (mostly red) audio cable + (most white) common ground G (mostly black), the power cable "+" to the power supply "+", the audio "+" Connect the audio input of the camera to the AUDIO IN, the common ground G to the power supply "-" and the audio input G
104. The camera with audio is connected to the pickup. Is there a requirement for the recorder?
No requirements for the recorder
105. The video of the monitoring room, I want to divide a part to look at another monitoring room, how to operate?
The analog system can distribute one signal to another monitoring room through the video distributor, and the network system can directly connect to the network cable, and open the image to be viewed through the computer client.
106, after the boot, the video recorder always issued a "drop" sound?
1, no hard disk or hard disk is not formatted 2, hard disk failure
107, how to pick up the analog machine pickup, how to pick up the sound?
The pickup of the analog system needs to be connected to the recorder (requires video recorder support)
108. Under what circumstances is the coaxial network transmission used?
Most of them are retrofitted in the old system, customers have digital HD requirements, and the scene can not be used when the video cable can be replaced with a network cable.
109. How does the NVR search for devices on the front end?
1, the network cable connection is not connected 2, the front-end equipment power supply problem
110. Does the camera that captures the license plate automatically save the photo?
The camera of the license plate capture device can be an ordinary camera, and the recognition function is implemented on the host of the back end, and the photo is also saved on the host.
111. Shooting with lens, is the lens generally infrared?
Shot with a single lens, without infrared
112, how is the code stream?
The image captured by the camera is processed by the encoding device to form a network signal that can transmit on the network and occupy a certain network bandwidth.
113, what is the sub-stream and the main stream?
The main stream is used for local recording, and the substream is used for network preview. Dual stream design is designed to prevent remote image jams
114. Does the decoder solve NVR's brand requirements and restrictions?
The best decoder and NVR are the same brand, and the devices of different brands can be used together as long as they support the ONVIF protocol.
115. Under what circumstances does the disk array use more?
Large-capacity storage, when the NVR local disk cannot meet the storage requirements, you can consider using array storage.
116, how to achieve off-site storage?
As long as the network broadband can meet the needs of image transmission, the remote monitoring client or centralized management platform software has storage management functions, plus enough hard disks to achieve
117. How many meters can the network keyboard operate?
The network keyboard can operate as long as the network cable signal can reach the distance
118. How to match the equipment on the electronic screen?
The camera with bandwidth dynamic function can
119. In order to save the hard disk, what are the consequences of reducing the camera frame rate?
It is generally not recommended to save the hard disk space by reducing the frame rate. Lowering the frame rate will result in frame skipping during video playback, and losing the function of video capture at a critical time.
120, the video recorder synchronous playback, generally how many channels are displayed at best?
For each model of video recorder, the number of channels for video playback is different. This should be determined according to the actual needs of the user. When you want to see the panorama, you can open some playback windows appropriately. When you need to zoom in and see the close-up, you can open less. some.
121. Select elevator monitoring equipment. What should you pay attention to?
Small size, wide-angle lens
122, elevator hemisphere photoresistor is very sensitive how to adjust to always color?
1. Increase the brightness of the light in the elevator 2. Cut off the photoresistor cable inside the camera (not recommended)
123, the difference between BNC, VGA, HDMI interfaces
BNC is analog interface VGA digital standard definition interface HDMI is digital HD interface
124. When will the encoder be used? Is the encoder NVS?
The English name of the encoder: NETVIDEO SERVER (network video server) is also called video encoder, its function is to encode the analog camera video signal into a network signal. When the analog camera video signal needs to be connected to the network system, an encoder is needed.
125. Is the encoder used inside the elevator? What are the pros and cons?
The encoder is used in the elevator because the accompanying cable in the elevator has only coaxial cable and no cable. When the market has a more economical and practical elevator cable, it is recommended to consider using a network camera. The highest resolution of the encoder is WD1, which is far less than the pixel height of the network camera.
126. What is the relationship between video surveillance cameras and video capture cards?
The signal collected by the video capture card is provided by the front-end analog camera. It is collected and encoded by the capture card, and provides the digital set number to the computer for real-time display and storage. For stability and cost considerations, the current use of the capture card is no longer available. many.
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