Camera power wiring, you must know these points.

When we bought the camera,

The first step is wiring.

In this issue, Kangkang will bring you a special topic on wiring.

first ，Let's take a look.

When we first got the camera,

How to connect the power supply to the equipment

Skills that must be mastered before school

The following two nouns must be mastered first.

Common power supply methods are: DC power supply and AC power supply;

DC means that the device supports DC power supply.

AC indicates that the device supports AC power supply.

Step 1, judging the power supply type of the camera

01, labeling method

Where can I find the label?

A white label with parameters such as equipment model will be attached to the camera body, and it is also on the label of the equipment packaging box.

How to confirm the power supply mode through the label?

As shown in Figure 1 and Figure 2 below, the power supply mode of the equipment can be judged intuitively:

Camera power wiring, you must know these points.

Camera power wiring, you must know these points.

02, power interface tag confirmation method

Generally, the camera power supply interface will have engraved fonts or labels, indicating the power supply mode of the equipment:

Camera power wiring, you must know these points.

After knowing the power supply type of our camera,

You can start wiring the camera power supply.

Let's first understand a basic concept:

AC power supply, power supply wiring does not distinguish between positive and negative poles.

DC power supply, power supply wiring needs to pay attention to distinguish between positive and negative poles.

Step 2: Connect the camera power supply.

Common haikang power adapter

Camera power wiring, you must know these points.

How to distinguish if the power adapter interface cable is broken?

Generally, after the Haikang power adapter is cut, the all-black wire is the negative electrode and the black-and-white wire is the positive electrode.

Black is the negative pole and red is the positive pole.

In view of the different definitions of wires due to different power adapter models, it is recommended to use a multimeter to measure the positive and negative poles.

Common camera power interface 1

This kind of interface is a common round-mouth power supply connector, and the power supply standard will be engraved on the connector. The physical object shown in the figure is: DC12V power supply, so you can find a matching power supply to supply power directly.

How to distinguish the positive and negative poles of round port power supply port?

The outer layer of the joint is a negative electrode and the inner core is a positive electrode.

Common camera power interface II

This interface is a green terminal with fonts engraved on the connector, as shown in the figure: AC24V power supply. The middle is a common ground port, and the left and right sides are power supply two-pole interfaces, and the wiring does not distinguish between positive and negative poles.

Tips

This kind of power supply terminal needs to loosen the screw on the terminal with a screwdriver, insert the power cord into the terminal opening, and then tighten the screw.

Common Camera Power Interface III

The power supply port of the equipment is embedded in the tail of the fuselage. The power supply interface is marked with AC24V and DC12V, indicating that this equipment supports two power supply modes. When using DC power supply, it is necessary to distinguish between positive and negative electrodes. As shown in the figure, the left interface is negative and the right interface is positive.

Have you ever encountered these problems in the process of using the camera?

Date: January 18, 2022 Author: admin Category: Monitoring Skills Visited 1035 times

How to choose the camera power supply?

What are the parameters of PoE power supply?

How to adjust the abnormal camera image?

…………

Have you ever had problems with these cameras? This article gives you the answer.

Camera power supply problem

First, the choice of power supply?

1, the power supply should have lightning protection and leakage prevention measures, with safe grounding.

2. Please don't connect multiple devices to the same power adapter. The power supply voltage may be unstable due to voltage attenuation. If it exceeds the load of the adapter, it may generate too much heat and cause a fire.

Second, what problems will be caused by insufficient power supply?

1. The camera keeps restarting.

2. The infrared camera image is black.

3, the image is not clear, there are water ripples or interfere with the current image.

POE power supply method and parameters

PoE power supply belongs to the function of network camera, and analog camera has no PoE function.

POE power supply mode: idle pin (4578) and signal pin (1236) supply power. Both power supply modes are used in the field environment, whether it is 100 Mbps or Gigabit networks. The power supply terminal equipment decides which power supply mode to choose.

Image anomaly problem

First, the camera imaging is not clear

Have you ever encountered these problems in the process of using the camera? Monitoring skills sheet 1

Check:

1. Check whether the lens interface is correct. The lens can be divided into C and CS bayonet. Adjust the lens focal length or refocus. If the device has a back focus function, it can also be refocused by adjusting the back focus.

As shown below, the CS interface is misused:

Have you ever encountered these problems in the process of using the camera? Monitoring skills sheet 2

2. The equipment supporting electric zoom can adjust the lens distance through zoom+and zoom-buttons; The focus+and focus-buttons can be used to adjust the clarity of the image.

3. See whether the transparent cover is dirty and whether there are foreign objects such as cobwebs near the lens. As shown below:

4. Check whether it is a lens with automatic aperture under strong light, and try to choose the lens type as electronic aperture.

Second, the phenomenon of horizontal stripes in the picture

Check:

1. There are strong electromagnetic radiation sources near the camera, such as high-voltage cables and high-power motors. Effectively ground the camera, install it away from interference sources as far as possible, and use transmission cables with better shielding performance.

2. The ground level of the camera nearby is inconsistent with that of the DVR at the back end; The front camera can be insulated from the ground.

Vertical stripe phenomenon:

The input voltage is lower than the required working voltage of the camera, resulting in the camera not being able to enter the normal working state; As far as possible, choose the original power adapter for power supply. Please refer to the product parameter table for specific power supply parameters of the camera.

Third, the causes of poor infrared effect

Check:

1. There are handprints, water stains, cobwebs, etc. on the cover, which leads to the dirty transparent cover. Replace the clean transparent cover, and wipe the transparent cover with mirror paper or soft towel.

2. The sponge ring of the equipment is loose or the sponge ring is removed, which leads to light leakage of the equipment (as shown in the following figure). This kind of situation needs to be handled by contacting the after-sales service station.

3. There is a lot of dust in the use environment of the equipment, and the dust reflected by the infrared lamp affects the infrared effect. As shown below:

By adjusting the focal length, adjusting the aperture to manual aperture and turning on the parameters of infrared overexposure prevention, the infrared effect can be improved.

4. Near objects reflect infrared light.

If a small part is blocked from reflecting infrared light, please check whether there are reflective objects around the equipment.

If most or all of the reflected infrared light is blocked, please avoid this installation scene.

5. The equipment installation is not standardized, such as: the installation angle is raised too high, and the ceiling reflects light; There is correlation during installation; There is an obstruction in front of the lens; Because the scene is empty and the shooting angle of the lens is too high, the infrared lamp can't reflect infrared normally.

6. The infrared light is weak and the brightness is insufficient.

(1) Check whether the power supply of the equipment is normal when it is running at night, and make timely rectification when it is abnormal.

(2) Check whether the infrared lamp of the camera is damaged or whether there is an infrared lamp with low brightness. Please contact the service center for handling.

(3) Confirm whether the infrared distance, infrared lamp angle and scene match. If they do not match, there will be overexposure near or insufficient brightness in the distance.

7. The monitoring distance of the equipment exceeds the infrared fill light distance, resulting in insufficient infrared fill light.

8. The infrared light reflection is weak, so it is not suitable for applications in environments such as water surface, inappropriate angle or strong infrared absorption of monitored objects.

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