What is Fingerprint Access Control?
With fingerprint access control, you use a fingerprint scanner to create a template for each person you want to authorize for access. Then when they present their finger at a fingerprint reader, for example by a door, it's compared with the stored template in your database. If it's a match, they're given access.
But in daily use, many customers will also have a series of problems, I will answer the common problems.
Question 1: Some users' fingerprint access control often fails to pass verification. How to solve this problem?
The following situations may make it difficult or impossible for some employees to use fingerprints for access control management:
a. The fingerprints on some fingers are smoothed;
b. The folds on the fingers are too many and often change;
c. The skin on the fingers is severe; the fingerprints cannot be recognized If you are a user, you can delete the fingerprint and re-enroll it, or enroll another finger.
When registering fingerprints, such users need to choose fingerprints with better quality (fewer wrinkles, no peeling, and clear fingerprints), try to make the area of the fingers contact the fingerprint collection head as large as possible, and do a comparison test after the registration is completed; and it is recommended that Register several more backup fingers.
Question 2: When the access control mechanism cannot communicate, what are the reasons?
The possible reasons are:
a. The communication port setting is incorrect, and the selected communication port is not the actual COM port used.
b. The baud rate of the communication port of the computer is different from the baud rate of the attendance machine.
c. The access control mechanism is not connected to the power supply or is not connected to the computer;
d. The access control mechanism is connected but not turned on.
e. The connected terminal number is incorrect.
f. The data line or the converter cannot communicate.
g. The COM port of the computer is broken.
Question 3: After the access control machine is connected to the power supply and turned on, the LCD display is incomplete, sometimes only half of it is displayed, and sometimes the screen is blurred. What is the problem and how to solve it?
The possible reasons are:
a. the motherboard is broken;
b. the internal characteristics of the liquid crystal. At this time, it is necessary to contact the supplier and return for repair.
Question 4: How to clear the administrator of the access control machine?
You can use the access control machine to communicate with the computer. After the communication is successful, enter the access control machine management tab page, click the clear administrator button, and you can clear the access control machine administrator, after disconnecting, you can enter the access control machine menu mode.
Question 5: What is the reason for the beeping sound of "flute" when the access control machine is connected?
The possible reasons are:
a. If the above phenomenon occurs when using RS-232 communication, the baud rate of the computer is inconsistent with the baud rate setting of the attendance machine.
b. If RS-485 communication is used, the two lines of the converter communication line may be reversed, or the two lines may be stuck together.
Question 6: After the access control machine is turned on, it keeps showing "please press (leave) your finger again" repeatedly, what is the problem? How should it be resolved?
The reason for this problem may be:
a. After using it for a long time, the surface of the collection head becomes unclean or scratched, which will make the collection head mistakenly believe that there are fingers on the surface and cannot pass, so this problem occurs. In this case, you can use self-adhesive tape to stick the dirt on the surface of the collecting head.
b. The connection of the fingerprint collection head is loose or has been loose.
c. The motherboard chip is broken. If there are two reasons for items c and d, you need to contact the supplier to apply for a warranty.
Question 7: There is no problem in downloading the fingerprint and password data during the operation in the access control machine management, but when reading the access control record, it prompts failure or an error in the middle. How to solve it?
This situation may be related to the data cable, the converter, or the COM port of the computer. At this time, you can reduce the communication baud rate between the access control machine and the computer, such as 19200 or 9600, and then read it.
Whether you have any questions about purchasing or using it, you can call or email us at any time. Email: sales@s4a-access.com
Author: Written by Ms.Anna Zhang from S4A INDUSTRIAL CO., LIMITED
Factory Address:Building S4A, South Third Lane, Qiuyuling Street, Zhangkeng Village, Hengli Town, Dongguan City, Guangdong Province Office Address:#601,floor 6 ,building 1,JINFANGHUA industrial zone, Bantian St. Longgang Dist. Shenzhen, PRC.
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