Digital camera usage tutorial Recommended network camera quick start guide

php Xiaobian Yuzi brings you a comprehensive tutorial on using digital cameras and a quick start guide for network cameras. Whether you are a beginner or an experienced photography enthusiast, this guide will help you understand the basic operations and functions of a digital camera, as well as how to quickly get started with a network camera. Through this tutorial, you will learn how to take high-quality photos and videos, and master the camera's various features. Whether you want to take travel photos, home videos, or pursue professional photography, this tutorial has you covered. Let’s start this photography journey together!

This article has prepared an introductory guide to network cameras for you. After reading this article, even if you are a novice, you can quickly get started with debugging and configuring network cameras~

1. Access the network

Wired method

Wireless method

2. Device activation and IP modification

##Function: Increase security performance Operation: Set the management password activation of the management user Method: Browser, SADP software, 4200 client software, NVR Note: Unactivated devices do not have an initial password. You must first activate and set an 8-digit or above password before you can modify, add, and preview operations

3. Quick access— —IE browser

1. Enter the IP address of the camera in the address bar, and the login interface will appear. Enter the camera's "username" (default: admin) and "password" (set during activation), and click [Login]

3. After the plug-in is installed, you can preview the video and do some configuration operations

2. After logging in, click to install the plug-in. During the installation process, you need to close the browser

4. Front-end basic parameter adjustment

Video

Video frame rate

Function: Adjust the smooth performance of the video

Recommendation: Use 25 frames or above

The higher the frame rate, the better the smoothness. Insufficient frame rate will cause fast-moving objects to feel jumping. The increase of frame rate requires the support of code rate. It will increase the pressure on network bandwidth and storage

Bit rate upper limit

Function: adjust the encoding quality of the image and determine the video storage Data volume

Recommendation: Set according to resolution and frame rate, usually keep the factory default value

The bitrate setting needs to match the resolution size. The more complex the scene, the greater the encoding pressure, and more code streams are needed. The scene of pan-tilt rotation becomes more complicated and requires more Some images with insufficient code streams show color codes and color blocks on edges or moving objects

Audio

Audio input

Function: Enable different audio access circuits

Recommendation: Select MicIn for passive pickup

Active pickup selection LineIn

Input volume

Function: Adjust the gain of the audio signal

Recommendation: Adjust according to the actual volume

The playback sound is small- Increase

to make playback louder/noisier - reduce

Environmental noise filtering

Function: Suppress environmental noise

Recommendation: Environmental noise affects normal audio recognition Turn it on

After these steps, the network camera can be used normally~

Share knowledge: How to solve the problem when the monitoring network cable exceeds 100 meters

In actual projects, such a situation often occurs. Due to the lack of pre-judgment, during the project construction and installation, it is found that the distance is long and the network cable is simply not enough. We know that whether it is a Category 5e line or a Category 6 line, reasonable The transmission distance is about 100 meters. Even the Category 6 standard network cable can only be within 120 meters at most. Ordinary network cables cannot exceed 90 meters during engineering construction.

So in the project, if the transmission distance is 300 meters, or the distance is found to be too long, how to solve it? Let’s summarize this issue together today.

Method 1. Add a switch

Category 5 and Category 6 are both 100 meters. If you want to increase the transmission distance, you can install a switch (relay device) between the two twisted pairs. , theoretically up to 4 switches can be installed. If 4 switches are installed to connect 5 network cable segments, the theoretical maximum transmission distance can reach 500m.

For monitoring projects, if the transmission distance exceeds 100 meters, we can add a switch in the middle for relay and use it with Category 6 lines, then the transmission distance will be extended by 100 meters because the switch has the ability to amplify the signal. This function strengthens the network signal, so it can be used normally.

But if the distance is far away, 300 meters or 500 meters, adding multiple switches can also solve the problem, but three switches After amplification, the signal may become unstable. Therefore, the best way to add switches is to only add two switches to solve the transmission problem within 300 meters.

Method 2. Use fiber optic transceivers

Long-distance network cable transmission, the network signal attenuation is too large, if the distance exceeds 300 meters, you can add a pair of fiber optic transceivers in the middle. Optical fiber transmission is the most ideal way, the signal is smooth and stable.

Optical fiber transceivers also need to be used in pairs. The transmit port (TX) of the transceiver at one end is connected to the receive port (RX) of the transceiver at the other end. Optical fiber transmission is used between the transceivers. The camera terminal communicates with the transceiver through the switch. This networking method is also suitable for large-scale monitoring coverage, and its excellent performance is widely used.

##Method 3. Bridge transmission

If wiring is difficult in many environments, wireless transmission can also be used in the middle, which is simple to install and low in construction cost. It should be noted that wireless bridges must be visible between each other and cannot be blocked by obstacles.

There are two ways to use wireless bridge.

1. Point-to-point connection

If multiple cameras are concentrated, you can connect the cameras to the switch.

If the cameras are scattered and far away, you can Each camera is configured with a pair of network bridges

2. Point-to-multipoint

If the location of the camera distribution The angle formed to the monitoring center is less than 60 degrees, so point-to-multipoint transmission can be considered. Can reduce transmitter bridge and cost.

These two ways of network bridge are used according to different scenarios, such as on the street, in school, in factory, In office buildings, construction sites, parks, residential areas, river banks, ports and terminals, even forests, Gobi Desert, etc. As long as there is a need to install a video surveillance system, a wireless video surveillance system can be used, and a network bridge will be used.

Summary

1. Ease of use

These three methods have their own uses. If the transmission distance is within 200 meters, then we can directly add a switch in the middle Let's continue to use network cable transmission. If the distance is long and you don't want complicated wiring, you can use a network bridge for transmission, which is more convenient.

If there are obstacles between the two places and it is not suitable for wireless bridge networking, you can consider using optical fiber networking in the middle. The required consumables are a pair of optical transceivers and leather fibers.

2. Stability

The signal is relatively stable when the switch has about two relays. After three relays, the signal will attenuate. This is only suitable for short-distance transmission of about 200 meters; network Bridge transmission saves time and effort, but the stability is slightly poorer and is affected by many factors; The optical fiber networking method is relatively simple. Optical fiber transceivers are used in pairs. One end is connected to the camera and the other end is connected to the computer room switch. The fiber optic transceivers are connected through skin. fiber connection. Optical fiber networking consumables are not high in cost and are stable and reliable.

Share monitoring and maintenance charging methods

Monitoring and maintenance are an indispensable part of monitoring, but the cost of maintenance makes it difficult for many weak current friends. There are weak current VIPs Friends in the technical group have also asked many times how to quote for monitoring and maintenance, so today we will learn about the charging method for monitoring and maintenance.

There are currently three main charging methods:

A. Charge per time, charge after each repair is completed. And bear a certain period of free warranty;

B. Charge by stage, that is, charge by year and month to ensure the normal operation of the equipment or system, and charge a certain fee at each stage;

C. Charge based on a percentage of the project cost.

These three methods are all used in actual weak current projects, depending on different project conditions. Let’s take a look at them one by one.

1. Pay-per-view

The pay-per-view method is not used much now, but it is still used in some projects.

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