CN-121997957-A - Channel type read-write device supporting multi-protocol label mixed inventory and control method

CN121997957ACN 121997957 ACN121997957 ACN 121997957ACN-121997957-A

Abstract

The application relates to a channel type read-write device supporting multi-protocol label mixed inventory and a control method, wherein a main channel door and a secondary channel door of the device are oppositely arranged at intervals to form a passage channel for articles with labels, the passage channel and the passage channel realize signal and data interaction through cables, the main channel door comprises a control module, a read-write module, a first infrared sensor, an audible and visual alarm, a first group of ultrahigh frequency antennas and a power module, and the secondary channel door comprises a second infrared sensor, an audible and visual alarm and a second group of ultrahigh frequency antennas. The read-write module is a multi-protocol identification core and consists of a protocol processing unit, an interface unit and a radio frequency unit. The control module comprises a processor and a multi-interface expansion hardware circuit integrating serial and network interfaces, and is used for efficiently transmitting multi-protocol identification data and cooperating with each module of a main channel and a secondary channel through interface expansion and time sequence coordination of a hardware layer, so that the problems of protocol incompatibility, data congestion, antenna interference, module cooperation inefficiency and the like of multi-protocol label checking are accurately solved.

Inventors

WANG HONGYI
ZHENG LIMING
WU JIANFEI
LIU PEIGUO
LIANG ZHENHUA

Assignees

中国人民解放军国防科技大学

Dates

Publication Date: 20260508
Application Date: 20260122

Claims (8)

1. The channel type read-write device supporting multi-protocol label mixed inventory is characterized by comprising a main channel door and an auxiliary channel door, wherein the main channel door and the auxiliary channel door are oppositely arranged at intervals to form a channel for passing a labeled article, and the main channel door and the auxiliary channel door are in signal and data interaction connection through a cable; The main channel door is provided with a read-write module, a first infrared sensor, an audible and visual alarm, a first group of ultrahigh frequency antennas and a power module, wherein the read-write module, the first infrared sensor, the audible and visual alarm, the first group of ultrahigh frequency antennas and the power module are respectively electrically connected with the control module; the secondary channel door is provided with a second infrared sensor, an acousto-optic alarm and a second group of ultra-high frequency antennas, wherein the second infrared sensor, the acousto-optic alarm and the second group of ultra-high frequency antennas are electrically connected with the control module; The read-write module is a core module supporting multi-protocol identification and comprises a protocol processing unit, an interface unit and a radio frequency unit, wherein the interface unit and the radio frequency unit are respectively electrically connected with the protocol processing unit, the interface unit is electrically connected with the control module, and the radio frequency unit is electrically connected with the ultrahigh frequency antenna.
2. The channel type read-write device supporting multi-protocol label mixed inventory according to claim 1, wherein the protocol processing unit is realized based on a high-operation-capability processor, and is pre-embedded with a plurality of air interface protocols, and baseband data processing and multi-protocol analysis of different protocol labels are completed through the high-operation-capability processor, so that multi-protocol label mixed identification is realized.
3. The channel type read-write device supporting multi-protocol label mixing inventory according to claim 2, wherein the plurality of air interface protocols includes at least two of ISO 18000-6C protocol, GB29768 protocol, GJB7377 protocol.
4. The channel type read-write device supporting multi-protocol label mixed counting according to claim 1, wherein the radio frequency unit is used for modulating, filtering and amplifying different protocol baseband signals output by the protocol processing unit, transmitting the modulated signals to the ultra-high frequency antenna for transmitting, receiving radio frequency signals of different protocol labels, and completing filtering, amplifying, mixing and demodulating processing, so that radio frequency interaction with the different protocol labels is realized.
5. The device of claim 1, wherein the protocol processing unit coordinates the operating times of the first and second sets of uhf antennas through timing control logic.
6. The channel type read-write device supporting multi-protocol label mixed inventory according to claim 1, wherein the control module comprises a processor, and a serial interface, a network interface and a GPIO interface which are connected with the processor in a two-way communication manner; The serial interface is used for carrying out data interaction with an interface unit of the read-write module, the network interface is used for realizing communication with an upper system, and the GPIO interface is used for controlling the working states of the infrared sensor and the audible and visual alarm.
7. The channel type read-write device supporting multi-protocol label mixing inventory according to any one of claims 1-6, wherein the interval between the main channel door and the sub channel door is less than 3 meters.
8. The method for controlling channel read-write supporting multi-protocol label mixed inventory, which is characterized in that the method is implemented in the channel read-write device supporting multi-protocol label mixed inventory according to any one of claims 1-7, and the method comprises: The upper computer sends a multi-protocol checking instruction to the read-write module through the control module; the read-write module counts the labels in the channel according to the multi-protocol counting instruction and the first air interface protocol, and switches to the second air interface protocol after continuously presetting the working time; And the read-write module counts the labels in the channel according to the second air interface protocol, switches back to the first air interface protocol after the preset working time duration is continuously maintained, and circularly executes the label counting operation.

Description

Channel type read-write device supporting multi-protocol label mixed inventory and control method Technical Field The application relates to the technical field of wireless communication, in particular to a channel type read-write device supporting multi-protocol label mixed inventory and a control method. Background The ultra-high frequency radio frequency identification (UHF RFID) technology is a branch with commercial value and application potential in a radio frequency identification technology system, and becomes a core Internet of things sensing technology in the fields of logistics storage, smart retail, intelligent manufacturing and the like by virtue of the characteristics of long-distance identification, multi-tag quick reading and non-contact interaction. From the technical principle, the ultrahigh frequency radio frequency identification system consists of an electronic tag, a read-write device, an upper computer and a background data management system. The electronic tag is used as an information carrier, a storage chip and an antenna are built in the electronic tag, the electronic tag can store data such as identity codes, attribute information and the like of articles, the read-write device is a key hub for connecting the electronic tag with a background data management system and bears the core functions of signal transmission, data reception and instruction interaction, and the upper computer and the background data management system are responsible for integrating, analyzing and applying the data. Different from the low-frequency and high-frequency radio frequency identification technology, the signal in the ultra-high frequency band has stronger penetrability and longer identification distance, and the reading and writing distance can reach 10 meters in a conventional scene. In practical application, whether the advantages of the ultrahigh frequency radio frequency identification technology can be fully exerted depends on the performance of the read-write device to a great extent. In the logistics storage field, the read-write device needs to identify tens or even hundreds of articles attached with labels at the same time, batch quick verification of goods in and out of storage is realized, if the multi-label anti-collision algorithm of the read-write device is insufficient, the problem of misreading occurs, the sorting efficiency is directly reduced greatly, in the unmanned supermarket scene of intelligent retail, the read-write device needs to accurately identify all the commodity labels in a customer shopping basket, and the identification precision and the response speed directly determine the smoothness and the user experience of the calculation flow. In order to enable communication with the electronic tag, the reader/writer needs to support an air interface protocol. At present, protocols which are widely applied include ISO 18000-6C, GB29768, GJB7377 and the like, and the read-write devices on the market generally only support a single protocol, and when facing labels without protocols, a plurality of sets of read-write devices with different protocols are required to be equipped, so that the deployment is complex, the efficiency is low, and the waste of resources is caused. Disclosure of Invention Accordingly, it is necessary to provide a channel type read-write device supporting multi-protocol label mixed counting and a control method thereof, which can realize batch identification of different protocol labels and greatly improve the counting efficiency. The channel type read-write device supporting multi-protocol label mixed inventory comprises a main channel door and a secondary channel door, wherein the main channel door and the secondary channel door are oppositely arranged at intervals to form a channel for passing a labeled article, and the main channel door and the secondary channel door are in signal and data interaction connection through cables; The main channel door is provided with a read-write module, a first infrared sensor, an audible and visual alarm, a first group of ultrahigh frequency antennas and a power module, wherein the read-write module, the first infrared sensor, the audible and visual alarm, the first group of ultrahigh frequency antennas and the power module are respectively electrically connected with the control module; the secondary channel door is provided with a second infrared sensor, an acousto-optic alarm and a second group of ultra-high frequency antennas, wherein the second infrared sensor, the acousto-optic alarm and the second group of ultra-high frequency antennas are electrically connected with the control module; The read-write module is a core module supporting multi-protocol identification and comprises a protocol processing unit, an interface unit and a radio frequency unit, wherein the interface unit and the radio frequency unit are respectively electrically connected with the protocol processing unit, the interface unit is electric