What should be paid attention to during the installation and installation of QR code access control?

2021-03-04 04:19:57

Some customers report that the QR code access control sometimes encounters the phenomenon that the QR code cannot be passed. Now let's talk about what needs to be noted during the installation and use of the QR code access control process.

1. Cable laying:

Reliable construction power supply shall be provided, equipment power supply (AC220V), power ground wire must be effectively grounded;

The cables should be arranged neatly, without twisting, and the interlacing should be minimized. The thick wires are at the bottom and the thin wires are at the top;

When multiple cables are inserted into the tube, the cables must not be twisted with each other, and there must be no connectors in the tube. The connectors must be connected at the wire box (box);

The two ends of the cable must be marked, and the shielding layer of the shielded cable is well grounded;

Wiring not only requires safety and reliability, but also makes the circuit layout reasonable, neat, and securely installed;

The signal line should avoid running parallel to the high-power power line, and it should not be worn in the same conduit or trunking; if it is restricted by the environment, if it is parallel running, it should be far away from more than 50CM;

When wiring, the communication of indoor, outdoor, attendance machine, access control system, gate, etc. should be separated according to different types, different areas, different equipment, and independent wiring;

When wiring, try to avoid wires with connectors. Unless it is impossible to use a joint, the joint must be crimped or welded. Wire connections and branches should not be affected by mechanical forces;

The wiring should be installed horizontally or vertically in the building. The wiring should be protected by a sleeve (the pipe must be a PVC pipe with strong resistance and marked with fire protection logo). The wiring in the ceiling should also use standard PVC pipes, or a small amount of metal hoses, but it needs to be securely fixed. Beautiful;

The AC power supply is a multi-strand copper wire cable that complies with the GB5023.3-1997 standard. The specific wire diameter is purchased according to the total power of the equipment. It meets the electrical installation standards. The AC power supply should be routed separately. In the same tube, and the interval should not be less than 50CM;

The insulation of the conductor should conform to the installation method of the line and the design of the laying environment, and the insulation sheath is made of fire-resistant PVC insulation and polyvinyl chloride material; the wiring should be installed horizontally or vertically in the building, and the wiring should be added with bushings Protection (The pipe must be PVC line pipe with strong resistance and in line with the fire protection logo;

The DC power supply and the electric lock wire use 2 core 1.0mm2 black multi-strand copper wire.

Second , the terminal equipment installation:

Standard installation height: 1.3M-1.4M;

Equipped with plastic bottom plate, the bottom plate is fixed on the wall or shelf with four 2cm high screws; then the QR code access control integrated machine is buckled from below and fixed with two 0.5cm high screws;

The installed position must not be vibrated, sun exposure, rain, interference of strong radio waves or dry humidity and temperature exceed the standard; not interfered by strong electromagnetic field electromagnetic waves, and cannot be installed in a strong vibration environment;

When there are more than two QR code access control integrated machines installed nearby, the installation distance between the two machines should be more than 30M;

The communication interface adopts the original AMP crystal head, and the standard qualified crystal pliers are used for clamping when clamping;

If there is a protection box, the protection box must be fixed first.

Temperature and humidity requirements of equipment working environment;

This case is that the two devices are too close, causing interference, and the data loss of the QR code

This case is that the customer sharing code exceeds the number of uses, which prevents the visitor from entering

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