In the current management identification technology, biometrics and non-contact recognition are arguably the hottest two identification technologies. When it comes to the advantages of no-touch recognition, I am afraid that the help he has brought to us is obvious to all. Whether it is the current simple and common one-card technology or access control cards related to access control security, it seems that the RFID technology is not against the background. It can be said that in the era of this card rampant, if there is no RF card management device, I am afraid it is difficult to be understood as living in the current information age.
However, while we enjoy the convenience that recognition technology brings to us, there are many annoyances that plague our trust in related technologies. Among them, the success rate of information authentication is probably one of our most headache bottlenecks, and even because of this limitation, it has also greatly affected the popularity of identification technology in our lives. So, how can we improve the recognition success rate of RFID technology as much as possible?
In fact, for RFID technology, its organizational principles and composition are not as complex as we imagine. After the chip card with the magnetic stripe itself enters the radiation area of ​​the magnetic field, the receiver will capture the signal sent by the magnetic card at the signal, and respond to the magnetic field with a radio frequency signal. Afterwards, the data sent by the energy stored in the inductive current is used to realize the interpretation and decoding of the reader, and finally sent to a general control information processing system for signal processing.
Structurally speaking, a complete RFID system consists of three parts: a reader, an electronic tag, and a software system. On the principle of the structure, the reader is responsible for the transmission frequency, and the radio wave energy is used for the signal. The electronic tag is passed to the electronic memo to send the internal data. Then, the reader can respond to the program according to the received signal.
At present, with RFID readers and electronic tags working, RFID devices can be subdivided into inductive coupling devices and backscatter coupling devices. In general, most low-frequency RFID devices use inductive coupling. For high-frequency RFID sensors, there is more scattering coupling.
Why is RFID difficult to identify?
At present, with the increasing use of RFID, the failure of RFID reading or misreading also increases. Through summary, it is found that the misreading of RFID devices is mainly attributed to the following reasons: the mutual interference of readers; the reader has a certain blind area when reading data; there are redundant data at different reading points and so on.
RFID identification card
First of all, the reader's interference, because nowadays with the increasingly widespread use of magnetic cards, we have more and more magnetic identification devices in our hands or in our living environment. When these devices appear in one environment at the same time, different signal conflicts occur. More serious, it may also cause some damage to the surrounding magnetic field, so that the card loses its role. In the initial period of the trial of the bus card in Beijing, there was a case where the magnetic force of the bus card was too strong and the other cards in the same wallet were effective. This situation still plagues the application of some cards.
In addition, there is a problem that there is a redundant area in the reading area or a different reading point. This problem is actually more caused by a defect or mistake in software or system design. As a result, data redundancy or data loss may occur during the reading of the card. This is one of the reasons why the current partial recognition system cannot read the card normally.
How to maximize RFID reading efficiency
As mentioned above, due to interference and its own design flaws, the RFID device often fails to read correctly, which affects everyone's interest in it. How can we solve this problem?
Reasonable configuration build
When building an RFID system, in order to make us more convenient in use, we must first ensure that the system is optimized during construction. For example, at the beginning of construction, the most important thing we need to clarify is our demand for use rather than the blind pursuit of advancement or the pursuit of popularization. Relative to the economic effect and the brand's new trend, good use is the biggest benefit.
Therefore, in the network construction, all RFID cards and system terminals should be regarded as a complete application system. For situations in which blind spots appear, resulting in missed reading, the situation of blind spots existing in the reading area can be compensated by using an increase in the reader or the antenna to ensure the completeness and correctness of device reading.
In addition, for the problem of mutual interference, it is possible to use equipments and the like equipped with isolation devices at the periphery of the equipment to avoid mutual influences and minimize negative effects. In addition, for some environments where the surrounding environment is relatively complex and there are many electromagnetic devices, proper adjustment of the receiving device layout, or the strength of the transmission power, etc., are also important means for solving the related problems.
Further improved software design
For the reason that the RFID reading rate is difficult to increase, it is largely due to defects in the design of the software system. Therefore, it is very important to check the software link.
As mentioned above, the problem of missed reading of some information can be carried out with a reasonable mix of adjustment systems. For the conflict of electronic tags, in the application of some high frequency bands, the ALOHA protocol is generally used to prevent conflicts. In addition, software optimization settings are also one of the effective ways to avoid conflicts. For example, the user can automatically adjust to an adaptive scanning mode according to the frequency of use of the scanning device. When the demand is large, the scanning device can be accelerated by the software. If not, the operating frequency is reduced, so that it can maintain an optimal state at the moment. It can neither miss the reading nor miss the scanning, and also avoids The emergence of redundancy. It also makes the equipment reach a more reasonable working condition.
Technology convergence to solve greater demand
In recent years, the application of RFID has gradually become a trend. However, some distance restrictions have become an obstacle to the development of this technology. Therefore, integration has become a major development direction for RFID to improve work efficiency. For example, the integration of RFID and WSID is actually a very successful attempt. With the continuous application, the integration of technologies such as 3G, GPS, and GPRS will become a necessary requirement for improving RFID applications.
In addition, as biometrics become more widespread today, the introduction of biotechnology will also become the most modern complement of identification technology. Implement basic information retrieval and troubleshooting with personal characteristics. While further facilitating the use, it also makes our identification technology more accurate and secure.
With the continuous advancement of our informatization applications, RFID has become an increasingly essential technology in our lives. As for some problems that appear in the application, we should also face it with a positive attitude to solve it. And we still have to believe that with the gradual realization of planning, software, and convergence, the availability of RFID technology will be substantially upgraded. And our lives will also enter a new era of intelligent recognition.
However, while we enjoy the convenience that recognition technology brings to us, there are many annoyances that plague our trust in related technologies. Among them, the success rate of information authentication is probably one of our most headache bottlenecks, and even because of this limitation, it has also greatly affected the popularity of identification technology in our lives. So, how can we improve the recognition success rate of RFID technology as much as possible?
In fact, for RFID technology, its organizational principles and composition are not as complex as we imagine. After the chip card with the magnetic stripe itself enters the radiation area of ​​the magnetic field, the receiver will capture the signal sent by the magnetic card at the signal, and respond to the magnetic field with a radio frequency signal. Afterwards, the data sent by the energy stored in the inductive current is used to realize the interpretation and decoding of the reader, and finally sent to a general control information processing system for signal processing.
Structurally speaking, a complete RFID system consists of three parts: a reader, an electronic tag, and a software system. On the principle of the structure, the reader is responsible for the transmission frequency, and the radio wave energy is used for the signal. The electronic tag is passed to the electronic memo to send the internal data. Then, the reader can respond to the program according to the received signal.
At present, with RFID readers and electronic tags working, RFID devices can be subdivided into inductive coupling devices and backscatter coupling devices. In general, most low-frequency RFID devices use inductive coupling. For high-frequency RFID sensors, there is more scattering coupling.
Why is RFID difficult to identify?
At present, with the increasing use of RFID, the failure of RFID reading or misreading also increases. Through summary, it is found that the misreading of RFID devices is mainly attributed to the following reasons: the mutual interference of readers; the reader has a certain blind area when reading data; there are redundant data at different reading points and so on.
RFID identification card
First of all, the reader's interference, because nowadays with the increasingly widespread use of magnetic cards, we have more and more magnetic identification devices in our hands or in our living environment. When these devices appear in one environment at the same time, different signal conflicts occur. More serious, it may also cause some damage to the surrounding magnetic field, so that the card loses its role. In the initial period of the trial of the bus card in Beijing, there was a case where the magnetic force of the bus card was too strong and the other cards in the same wallet were effective. This situation still plagues the application of some cards.
In addition, there is a problem that there is a redundant area in the reading area or a different reading point. This problem is actually more caused by a defect or mistake in software or system design. As a result, data redundancy or data loss may occur during the reading of the card. This is one of the reasons why the current partial recognition system cannot read the card normally.
How to maximize RFID reading efficiency
As mentioned above, due to interference and its own design flaws, the RFID device often fails to read correctly, which affects everyone's interest in it. How can we solve this problem?
Reasonable configuration build
When building an RFID system, in order to make us more convenient in use, we must first ensure that the system is optimized during construction. For example, at the beginning of construction, the most important thing we need to clarify is our demand for use rather than the blind pursuit of advancement or the pursuit of popularization. Relative to the economic effect and the brand's new trend, good use is the biggest benefit.
Therefore, in the network construction, all RFID cards and system terminals should be regarded as a complete application system. For situations in which blind spots appear, resulting in missed reading, the situation of blind spots existing in the reading area can be compensated by using an increase in the reader or the antenna to ensure the completeness and correctness of device reading.
In addition, for the problem of mutual interference, it is possible to use equipments and the like equipped with isolation devices at the periphery of the equipment to avoid mutual influences and minimize negative effects. In addition, for some environments where the surrounding environment is relatively complex and there are many electromagnetic devices, proper adjustment of the receiving device layout, or the strength of the transmission power, etc., are also important means for solving the related problems.
Further improved software design
For the reason that the RFID reading rate is difficult to increase, it is largely due to defects in the design of the software system. Therefore, it is very important to check the software link.
As mentioned above, the problem of missed reading of some information can be carried out with a reasonable mix of adjustment systems. For the conflict of electronic tags, in the application of some high frequency bands, the ALOHA protocol is generally used to prevent conflicts. In addition, software optimization settings are also one of the effective ways to avoid conflicts. For example, the user can automatically adjust to an adaptive scanning mode according to the frequency of use of the scanning device. When the demand is large, the scanning device can be accelerated by the software. If not, the operating frequency is reduced, so that it can maintain an optimal state at the moment. It can neither miss the reading nor miss the scanning, and also avoids The emergence of redundancy. It also makes the equipment reach a more reasonable working condition.
Technology convergence to solve greater demand
In recent years, the application of RFID has gradually become a trend. However, some distance restrictions have become an obstacle to the development of this technology. Therefore, integration has become a major development direction for RFID to improve work efficiency. For example, the integration of RFID and WSID is actually a very successful attempt. With the continuous application, the integration of technologies such as 3G, GPS, and GPRS will become a necessary requirement for improving RFID applications.
In addition, as biometrics become more widespread today, the introduction of biotechnology will also become the most modern complement of identification technology. Implement basic information retrieval and troubleshooting with personal characteristics. While further facilitating the use, it also makes our identification technology more accurate and secure.
With the continuous advancement of our informatization applications, RFID has become an increasingly essential technology in our lives. As for some problems that appear in the application, we should also face it with a positive attitude to solve it. And we still have to believe that with the gradual realization of planning, software, and convergence, the availability of RFID technology will be substantially upgraded. And our lives will also enter a new era of intelligent recognition.
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