When the installation of the security system is basically completed, many projects will produce multiple lines of ripples during the debugging process after installing the wall-attached screen. After the unremitting efforts of our engineering staff, we finally found the cause and solution. Detailed analysis will be carried out below.
Symptoms: There are multiple lines of undulations in the picture: Electrostatic discharge.
Causes of static electricity:
From a microscopic point of view, according to the theory of atomic physics, when the material is electrically neutral, the material is in an electric equilibrium state. Because of the gains and losses of electrons generated by the contact of different material electrons, the material loses its electric balance and generates an electrostatic phenomenon.
From a macroscopic point of view, friction between objects creates heat, stimulates electron transfer, contact and separation between objects produce electron transfer, electromagnetic induction results in an unbalanced distribution of surface charge, friction, and electromagnetic induction.
The main culprit of static electricity is electrostatic voltage, which is caused by the contact and separation of different types of substances. This effect is known as frictional electrification, and the voltage generated depends on the characteristics of the materials that rub against each other. Due to the direct contact and indirect contact between the human body and related components in the actual production process, the DID electronic display generates static electricity. Therefore, according to the characteristics of the industry we can do some targeted static electricity prevention measures.
solution:
The generation of static electricity is a natural law. We cannot completely eliminate it. Therefore, we can only suggest some installers who can prevent the generation of static electricity to obey the following points in the installation process.
First, ground
Grounding is the direct discharge of static electricity through the wire connection to the earth. This is the most direct and effective method for preventing static electricity. For conductors, grounding methods are usually used. In the main cabinet, DID screens are each connected to the ground.
Second, insulation
Insulation is to stick the insulation tape to the DID screen and the metal and power connection to prevent static electricity.
Third, separate from the line
The separation between the line and the line means that the VGA line and the power line are separated. We all know that the VGA line we generally use is not shielded. The non-shielded VGA cable and the power cable are easy to generate static electricity. These are the most basic points for preventing static electricity generation, but there are still many, such as our installation and commissioning staff and other related equipment Personnel must work in accordance with the relevant issues of "Public Security System Installation Operation". When contacting related equipment, the static electricity of the human body should be released in advance, and the voltage of the human body itself can be prevented from affecting the relevant parameters of the machine. .
Symptoms: There are multiple lines of undulations in the picture: Electrostatic discharge.
Causes of static electricity:
From a microscopic point of view, according to the theory of atomic physics, when the material is electrically neutral, the material is in an electric equilibrium state. Because of the gains and losses of electrons generated by the contact of different material electrons, the material loses its electric balance and generates an electrostatic phenomenon.
From a macroscopic point of view, friction between objects creates heat, stimulates electron transfer, contact and separation between objects produce electron transfer, electromagnetic induction results in an unbalanced distribution of surface charge, friction, and electromagnetic induction.
The main culprit of static electricity is electrostatic voltage, which is caused by the contact and separation of different types of substances. This effect is known as frictional electrification, and the voltage generated depends on the characteristics of the materials that rub against each other. Due to the direct contact and indirect contact between the human body and related components in the actual production process, the DID electronic display generates static electricity. Therefore, according to the characteristics of the industry we can do some targeted static electricity prevention measures.
solution:
The generation of static electricity is a natural law. We cannot completely eliminate it. Therefore, we can only suggest some installers who can prevent the generation of static electricity to obey the following points in the installation process.
First, ground
Grounding is the direct discharge of static electricity through the wire connection to the earth. This is the most direct and effective method for preventing static electricity. For conductors, grounding methods are usually used. In the main cabinet, DID screens are each connected to the ground.
Second, insulation
Insulation is to stick the insulation tape to the DID screen and the metal and power connection to prevent static electricity.
Third, separate from the line
The separation between the line and the line means that the VGA line and the power line are separated. We all know that the VGA line we generally use is not shielded. The non-shielded VGA cable and the power cable are easy to generate static electricity. These are the most basic points for preventing static electricity generation, but there are still many, such as our installation and commissioning staff and other related equipment Personnel must work in accordance with the relevant issues of "Public Security System Installation Operation". When contacting related equipment, the static electricity of the human body should be released in advance, and the voltage of the human body itself can be prevented from affecting the relevant parameters of the machine. .
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