CN211787108U - Multichannel RFID safety management monitoring device - Google Patents
Multichannel RFID safety management monitoring device Download PDFInfo
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- CN211787108U CN211787108U CN201821641898.0U CN201821641898U CN211787108U CN 211787108 U CN211787108 U CN 211787108U CN 201821641898 U CN201821641898 U CN 201821641898U CN 211787108 U CN211787108 U CN 211787108U
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Abstract
The utility model discloses a multichannel RFID safety control monitoring device, including MCU, MCU still is connected with external communication interface and radio frequency signal single output unit, radio frequency signal single output unit is connected with multichannel extension unit, multichannel extension unit is connected with multichannel radio frequency feeder, the radio frequency feeder is connected with the antenna. The utility model has the advantages that: realizing multi-path electronic tag article management through multi-path antenna output; and has high safety characteristics; the power consumption and the cost are lower.
Description
Technical Field
The utility model relates to a safety monitoring field especially relates to multichannel RFID safety control monitoring device.
Background
The conventional RFID card reader of the 13.56MHZ frequency band generally has a reading distance within 10CM and works in a single antenna mode. The electronic tag is not suitable for occasions where a plurality of electronic tags (articles) are provided and each electronic tag needs to be detected by one antenna, such as an intelligent electronic cabinet for valuables management. At present, the multi-antenna card reader mainly adopts a design scheme of a high-power low-frequency (such as 125KHZ) RFID card reader, and because each antenna channel is provided with an independent high-power radio frequency module, although the identification distance of an electronic tag is long, the power consumption is high, the cost of the card reader scheme is high, and only a low-frequency electronic tag is read, and the information quantity stored by the tag is low, and the safety is low.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems mentioned in the background technology, the utility model provides a multi-channel RFID safety management monitoring device, which realizes the multi-channel electronic label object management through the output of multi-channel antennas; and has high safety characteristics; the power consumption and the cost are lower.
The multichannel RFID safety management monitoring device comprises an MCU, wherein the MCU is further connected with an external communication interface and a radio frequency signal single-path output unit, the radio frequency signal single-path output unit is connected with a multichannel expansion unit, the multichannel expansion unit is connected with a multichannel radio frequency feeder, and the radio frequency feeder is connected with an antenna.
Further: the system also comprises status indicator lamps, and each antenna corresponds to one status indicator lamp.
Further: the antenna also comprises a sound prompter for prompting the state of the antenna.
Further: the external communication interface is an RS485 interface.
Further: the multi-path expansion unit comprises a multi-path electronic switch.
Further: the radio frequency signal single-path output unit comprises an RFID radio frequency circuit.
Compared with the prior art, the beneficial effects of the utility model are that: realizing multi-path electronic tag article management through multi-path antenna output; and has high safety characteristics; the power consumption and the cost are lower.
Drawings
Fig. 1 is a schematic structural diagram of a multi-channel RFID security management monitoring device according to an embodiment of the present invention.
In the figure, the serial numbers are 1, MCU 2, external communication interface 3, radio frequency signal single-path output unit 4, multi-path expansion unit 5, multi-path radio frequency feeder 6, antenna 7, status indicator light 8, sound prompter 9 and electronic switch.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the multichannel RFID security management monitoring device includes an MCU 1, the MCU 1 is further connected to an external communication interface 2 and a radio frequency signal single-path output unit 3, the radio frequency signal single-path output unit 3 is connected to a multi-path extension unit 4 including a multi-path electronic switch 9, the electronic switch multi-path extension unit 4 is connected to a multi-path radio frequency feeder 5, and the radio frequency feeder 5 is connected to an antenna 6. The radio frequency feeder 5 adopts a coaxial radio frequency feeder. The radio frequency signal one-way output unit 3 includes an RFID radio frequency circuit 31. The embodiment of the utility model provides an in, 8 electronic switch can be adopted to multichannel extension unit 4, and MCU 1 control electronic switch 9 switches antenna output, and 4 antennas can be managed to every electronic switch 9.
In the preferred embodiment, the system further comprises status indicator lamps 7, and each antenna 6 corresponds to one of the status indicator lamps 7. And the antenna also comprises a sound prompter 8 for prompting the state of the antenna, and a buzzer can be adopted. The external communication interface 2 is an RS485 interface, a UART interface, a TCP/IP network interface and the like.
The utility model discloses the theory of operation: the RFID radio frequency circuit 31 outputs 13.56Mhz radio frequency signals in a single path, the MCU 1 controls a plurality of electronic switches 9 in the multi-path extension unit 4 to be switched into antenna output, namely, the antenna output is extended into multi-path (such as 32 paths), each path is connected to each antenna board through a coaxial radio frequency feeder 5, and each antenna board is separately placed (one antenna board is placed in each door cabinet) without mutual interference. The MCU 1 reads the states of each antenna 6 (whether an electronic tag is read or not) one by one in a polling reading mode, communicates tag information (card number, reading time and the like) with an upper computer through the corresponding external communication interface 2, and manages the states of each door cabinet by using an upper computer card-reading management system. Each antenna 6 is provided with an LED status indicator light, and when an electronic tag is detected, the LED light is on for a long time, and if not, the LED light is off. The buzzer 8 prompts the card reading or illegal operation alarming state. For the application occasions with more than 30 paths of antenna outputs, the number of the card readers is only increased, and the system can be applied to the management occasions of valuables such as jewels, documents, important cards and the like.
The 13.56MHZ high frequency tag has a faster transmission speed, typically over 100kbps, compared to the low frequency tag, and can perform multiple smart card identification (each international standard has a mature anti-collision mechanism). The storage capacity is from 128 bits to more than 8K bytes, and the encryption technology can support high security characteristics. Therefore, compared with the defects of the low-frequency multi-antenna card reader, the high-frequency (13.56MHz) multi-antenna card reader is more advantageous, and for the occasions with low requirements on the card reading distance, a high-power radio frequency circuit is not needed to improve the identification distance, so that the cost and the power consumption are lower, such as a small-sized article intelligent electronic cabinet. Therefore, after the embodiment of the utility model is implemented, the multi-path electronic tag object management and monitoring are realized through the multi-path antenna output; and has high safety characteristics; the power consumption and the cost are lower.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. Multichannel RFID safety control monitoring device, including MCU, its characterized in that: the MCU is further connected with an external communication interface and a radio frequency signal single-path output unit, the radio frequency signal single-path output unit is connected with a multi-path expansion unit, the multi-path expansion unit is connected with a multi-path radio frequency feeder, and the radio frequency feeder is connected with an antenna.
2. The multi-channel RFID security management monitoring device of claim 1, wherein: the system also comprises status indicator lamps, and each antenna corresponds to one status indicator lamp.
3. The multi-channel RFID security management monitoring device of claim 1, wherein: the antenna also comprises a sound prompter for prompting the state of the antenna.
4. The multi-channel RFID security management monitoring device of claim 1, wherein: the external communication interface is an RS485 interface.
5. The multi-channel RFID security management monitoring device of claim 1, wherein: the multi-path expansion unit comprises a multi-path electronic switch.
6. The multi-channel RFID security management monitoring device of claim 1, wherein: the radio frequency signal single-path output unit comprises an RFID radio frequency circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821641898.0U CN211787108U (en) | 2018-10-10 | 2018-10-10 | Multichannel RFID safety management monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821641898.0U CN211787108U (en) | 2018-10-10 | 2018-10-10 | Multichannel RFID safety management monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211787108U true CN211787108U (en) | 2020-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821641898.0U Active CN211787108U (en) | 2018-10-10 | 2018-10-10 | Multichannel RFID safety management monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211787108U (en) |
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2018
- 2018-10-10 CN CN201821641898.0U patent/CN211787108U/en active Active
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