Xi'an parking lot management system uses a lot of equipment in a set of video surveillance systems. At the final debugging stage or later maintenance stage, there will always be such a problem. If we cannot understand the root causes of the problems, it is difficult to completely solve them. This will cause customer dissatisfaction and affect the company's reputation. Here are some common problems and solutions.
There are many equipments used in a video surveillance system. It is difficult to completely understand the root cause of the problem if Xi'an parking lot management system is good to the final debugging stage or later maintenance stage. Solved, this will cause customer dissatisfaction and affect the company's reputation.
Learning to maintain the security monitoring system must see three tricks, one must learn to observe the law, the second must learn to listen, and the third must learn to smell. 1, observation method observation method that is visual inspection method, is the failure of the multimedia television monitoring system to check, determine and repair the first use of the Society to maintain security monitoring system, must see the three tricks, one must learn to observe the law, the second must learn to listen, Third, we must learn to smell.
1. Observation method
Observing method is visual inspection method, which is the first method used for checking, distinguishing and maintaining the failure of multimedia television monitoring system. The so-called observation method is the use of people's eyes, ears, nose, hands and other sensory organs. Xi'an parking lot management system uses sight, hearing, smell, touch and other basic methods to find, check, and eliminate faults. It is based on the maintenance personnel have a reasonable basis and maintenance experience.
2, listen
Listening is also the most basic means of discovering, inspecting, and eventually troubleshooting. The Xi'an Access Control Attendance Management System mainly listens to the presence or absence of an alarm in the system. The equipment in the system is in an energized state with or without a sound of ignition and discharge. Which equipment and which part is sent out: the output of the monitor head Whether there is sound on the main monitor, whether the sound is humming, whether it is distorted, and whether the size of the noise meets the requirements: whether the playback sound of the video tape recorder or hard disk recorder in the system is distorted, transposed, whether there is a buzzer sound, and communication Sound, trembling sound, abnormal noise, Xi'an's access control attendance management system price and the output volume size is in line with the requirements: the head is running under the motor drive with or without friction sound, percussion sound and other abnormal sound (such as scratching sound , tearing noise, etc.), whether the pan and tilt operating noise meets the requirements. According to the abnormal sound heard, it can help discover, check and finally find the fault.
3, smell
Smell is also the most basic means of discovering, inspecting, and finally eliminating faults. The sense of smell is the smell of the human nose. It helps to discover, identify, and check the approximate location of a malfunction. If Xi'an's access control and attendance management system is good, for example, if it smells burnt, miso or strange smells in the system, it can help identify and identify equipment that emits burnt, miso or odd smells, and opens the device. Cover, in order to make progress - step-by-step inspection, and ultimately identify the specific parts of the fault, specific parts and components.
Attachment: Common failures and elimination of monitoring systems
What if the surveillance camera has no image?
Answer: aã€Check whether the power supply is connected well, the power supply voltage is enough; bã€BNC connector or video cable is in poor contact; cã€The lens aperture is open; dã€The video or DC drive auto iris lens control wire is connected. e. Is the monitor normal? For example, whether to switch to the corresponding input channel. f. If it is for other reasons, you need to return to the factory for repair.
What is the reason why the webcam cannot display images?
A: Check whether the power indicator is on first, indicating whether the camera is powered on. 2. If there is a network indicator, see if the indicator is on or flashing. Indicates the network status of the camera. 3. Check whether the client computer network is connected, whether it is in the same subnet as the network camera, and whether it is in the same LAN as the camera. For the computer to provide the basis for the normal connection through the network. 4. Check if the IE control is installed correctly. And allow running controls. 5. The aperture of the camera is turned on. It shows that the camera image CCD can normally capture the light that the outside world injects into the lens. 6. The camera color and brightness settings are reasonable.
Color distortion, color cast?
a. It may be that the white balance switch (AWB) is not set properly, or the ambient light conditions may change too much. At this time, check whether the switch setting is in the OFF position and you should think of ways to improve the ambient light conditions.
A, automatic white balance, continuous mode - this time the white balance setting will be continuously adjusted with the change of the color temperature of the scene, the range is 2800~6000K. This method is most suitable for situations where the color temperature of the scene is constantly changing during shooting, so that the color is natural, but continuous white balance cannot produce the best color effect when there is little or no white in the scene. Button mode - first aim the camera at a white target such as a white wall, white paper, then switch the automatic mode switch from manual to the set position, leave it there for a few seconds, or until the image appears white, in white balance After being executed, the automatic mode switch is switched back to the manual position to lock the white balance setting. At this time, the white balance setting will remain in the camera's memory until the execution is changed again. The range is 2300~10000K. During this period, this setting will not be lost even if the camera is powered off. Setting the white balance by buttons is the most accurate and reliable, suitable for most applications.
B. Manual white balance. Manual white balance will turn off the automatic white balance. At this time, there are as many as 107 levels for changing the red or blue status of the image. For example, increase or decrease the red level, increase or decrease the blue level. One grade. In addition to time, some cameras have white balance fixed at 3200K (incandescent level) and 5500K (daylight level) and other grade commands.
Camera image quality is not good?
aã€Whether the lens is fingerprint or dirty; bã€Is the aperture adjusted well; cã€The video cable is in poor contact; dã€There is no problem with the electronic shutter or white balance setting; eã€The transmission distance is too far away; fã€The voltage is normal g, whether there is a nearby source of interference; h, in the elevator installation with the elevator to ensure insulation from interference; i, CS interface is connected.
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