An intelligent electronic tag management device

Abstract

The present invention discloses an intelligent electronic tag management device, which relates to the field of intelligent electronic tag management technology. Nowadays, in the storage environment, there are many types of goods, including large metal products, ordinary packaged goods, and small precision goods. Traditional identification systems mostly use a single frequency or a simple antenna layout. For large metal products, due to their shielding and interference with radio frequency signals, it is difficult for the signal to effectively penetrate, resulting in difficulty in identifying goods or failure to read information, and it is easy to misread or miss reading, affecting the reliability of inventory management. The present invention reasonably allocates radio frequency signal resources to avoid signal conflicts and interference. In terms of antenna layout, it provides all-round and multi-level signal coverage for different types of goods, greatly improving the success rate and accuracy of goods identification. Whether it is in the warehousing of goods, inventory counting or outbound links, it can quickly and accurately obtain goods information, significantly improving the overall efficiency of warehousing operations.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent electronic tag management, and specifically to an intelligent electronic tag management machine device. Background Art

[0002] With the rise of the Internet of Things technology, intelligent electronic tag management systems have emerged to solve these pain points in traditional warehouse management. Intelligent electronic tags, such as radio frequency identification tags, can store a large amount of goods information and can be read non-contact at a long distance through radio frequency signals.

[0003] In this regard, the patent document with the publication number CN111401095B discloses a method, device, equipment, and storage medium for identifying damaged two-dimensional codes, which relates to the technical field of two-dimensional code identification. The method includes: when a mobile terminal detects that the two-dimensional code is damaged, obtaining two-dimensional code scanning picture information including the damaged area of the two-dimensional code; after the mobile terminal obtains the two-dimensional code scanning picture information, prompting the user to input auxiliary identification information of the two-dimensional code, and sending the two-dimensional code scanning picture information and the auxiliary identification information to the server; the mobile terminal receives the two-dimensional code identification result responded by the server according to the two-dimensional code scanning picture information and the auxiliary identification information, and operates according to the two-dimensional code identification result.

[0004] Nowadays in a warehouse environment, there is a wide variety of goods, including large metal products, ordinary packaged goods, and small precision goods, etc. Traditional identification systems mostly adopt a single frequency or a simple antenna layout. For large metal products, due to their shielding and interference effects on radio frequency signals, it is difficult for signals to effectively penetrate, resulting in difficulties in identifying goods or failure to read information, and it is easy to have situations such as misreading and missing reading, affecting the reliability of inventory management.

[0005] In view of the above problems, for this reason, an intelligent electronic tag management machine device is proposed. Summary of the Invention

[0006] The purpose of the present invention is to provide an intelligent electronic tag management machine device, which solves the problem of low recognition in the background art.

[0007] To achieve the above purpose, the present invention provides the following technical solution: An intelligent electronic tag management machine device includes a function partition structure based on position layout, and this structure includes:

[0008] A general reader-writer allocation area for allocating radio frequency signals to coordinate the reading and writing operations within the system;

[0009] Multiple reader / writer A areas, each reader / writer A area contains at least one reader / writer A, and each reader / writer A corresponds to an electronic tag A. The reader / writer A is used to read and write information of its corresponding electronic tag A;

[0010] Multiple reader / writer B areas, each reader / writer B area contains at least one reader / writer B, and each reader / writer B corresponds to an electronic tag B. The reader / writer B is used to read and write information of its corresponding electronic tag B;

[0011] The out - warehouse area is used to perform out - warehouse operation processing on goods after reading and writing operations. The out - warehouse area is connected to the reader / writer A area and the reader / writer B area, so that the goods can enter the out - warehouse area for the out - warehouse process after operations by the reader / writer A and the reader / writer B;

[0012] The total reader / writer allocation area establishes a connection with the electronic tag through a radio frequency signal, and also establishes a connection with the out - warehouse area through a radio frequency signal. The electronic tag is connected to the corresponding reader / writer area through a radio frequency signal to achieve two - way data transmission and interaction;

[0013] A low - frequency antenna is set in the total reader / writer allocation area. The low - frequency antenna is set at the top of the total reader / writer allocation area. At the same time, another set of low - frequency antennas is set in the out - warehouse area. The other set of low - frequency antennas is set at the topmost part of the out - warehouse area, and the signals between the two sets of low - frequency antennas are interconnected;

[0014] A medium - frequency antenna is set directly above each reader / writer area. Shelves are set up in the reader / writer area. High - frequency antennas are vertically set on the columns of the shelves. Four high - frequency antennas are spaced at the same height on the columns of the shelves. The four high - frequency antennas form a circular high - frequency antenna array, and the radiation direction of the antenna unit faces the inside of the shelves.

[0015] Preferably, it includes a radio frequency identification module, a control and processing module, a communication module, a storage module, a display and interaction module, and a positioning and navigation module.

[0016] Preferably, the radio frequency identification module includes a reader / writer and an electronic tag. The reader / writer is used to emit a radio frequency signal to activate the electronic tag and receive the radio frequency signal returned by the electronic tag carrying the goods information. The electronic tag is attached to the goods to store the goods information.

[0017] Preferably, the control and processing module includes a microcontroller and a signal processing circuit. The microcontroller is connected to the radio frequency identification module, used to control the operation of the reader / writer and receive the radio frequency signal transmitted by the reader / writer. The signal processing circuit is used to process and analyze the received radio frequency signal to extract the goods information in the electronic tag;

[0018] The communication module has a wired communication interface and a wireless communication module. The wired communication interface is used for stable wired data transmission with an external server. The wireless communication module is used to achieve wireless data interaction with a mobile device or a remote monitoring system. The communication module is connected to the control and processing module, and is used to transmit the processed goods information to an external device and receive instructions from the external device.

[0019] Preferably, the storage module consists of a data storage unit and a database management system. The data storage unit is connected to the control and processing module and is used to store the goods information extracted by the signal processing circuit and the system operation records. The database management system is used to manage and query the stored data.

[0020] Preferably, the display and interaction module includes a display screen and an input device. The display screen is connected to the control and processing module and is used to display the goods information and the system status. The input device is used for an operator to input instructions and query requests to the control and processing module;

[0021] The positioning and navigation module includes a positioning system and a navigation system. The positioning system is used to determine the position of the goods in the warehouse. The navigation system is used to provide a goods handling route for the handling equipment. The positioning and navigation module is connected to the control and processing module. The control and processing module performs inventory management based on the goods position information provided by the positioning system and guides the operation of the handling equipment according to the route provided by the navigation system.

[0022] Preferably, the intelligent electronic tag management device further includes real-time monitoring. The real-time monitoring sets sensors in the total reader-writer allocation area, the reader-writer A area, the reader-writer B area, and the out-warehouse area. The sensors are used to collect the position information of each area, the operation status information of the equipment, and the flow status information of the goods.

[0023] Preferably, the real-time monitoring integrates and analyzes the collected information, and transmits the information to the server through the communication module. The management device manages and coordinates the information interaction between the real-time monitoring module and the server.

[0024] Preferably, in the circular high-frequency antenna array, the included angle between adjacent antenna units of each group of circular high-frequency antenna arrays is 90 degrees, and each antenna unit performs a directional beam, and the beam width is between 30 degrees and 60 degrees. The antenna unit radiates signals towards the inside of the shelf.

[0025] Preferably, the circular high-frequency antenna array is set up along the height direction of the shelf upright post, and the distance between adjacent circular high-frequency antenna arrays is the same.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0027] 1. An intelligent electronic tag management machine device provided by the present invention divides the warehousing management system into a general reader-writer allocation area, a reader-writer A area, a reader-writer B area, and a warehousing area functional partition. The general reader-writer allocation area can effectively coordinate the work of each reader-writer area, reasonably allocate radio frequency signal resources, avoid signal conflicts and interference, and in terms of antenna layout, provide all-round and multi-level signal coverage for different types of goods, greatly improving the success rate and accuracy of goods identification. Whether it is in the process of goods warehousing, inventory checking, or outwarehousing, it can quickly and accurately obtain goods information, significantly improving the overall efficiency of warehousing operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a layout diagram of the functional partition of the present invention;

[0029] Figure 2 It is a schematic diagram of the operation process of the present invention;

[0030] Figure 3 It is a schematic diagram of the antenna position distribution of the present invention;

[0031] Figure 4 It is a schematic diagram of the high-frequency antenna array structure of the present invention;

[0032] Figure 5 It is a schematic diagram of the high-frequency antenna distribution structure of the present invention;

[0033] Figure 6 It is a high-frequency antenna signal diffusion field pattern diagram of the present invention;

[0034] Figure 7 It is a high-frequency antenna binary signal transmission coverage diagram of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] To further understand the content of the present invention, the present invention will be described in detail in conjunction with the accompanying drawings.

[0037] Combined with Figures 1-7 , an intelligent electronic tag management machine device of the present invention includes a functional partition structure based on position layout, and this structure includes:

[0038] A general reader-writer allocation area, which is used to allocate radio frequency signals to coordinate the reading and writing operations within the system;

[0039] Multiple reader / writer A areas, each reader / writer A area contains at least one reader / writer A, and each reader / writer A corresponds to an electronic tag A. The reader / writer A is used to read and write information of its corresponding electronic tag A;

[0040] Multiple reader / writer B areas, each reader / writer B area contains at least one reader / writer B, and each reader / writer B corresponds to an electronic tag B. The reader / writer B is used to read and write information of its corresponding electronic tag B;

[0041] The out - warehouse area is used to perform out - warehouse operation processing on goods after reading and writing operations. The out - warehouse area is connected to the reader / writer A area and the reader / writer B area, so that the goods can enter the out - warehouse area for the out - warehouse process after being operated by the reader / writer A and the reader / writer B;

[0042] The total reader / writer allocation area establishes a connection with the electronic tag through a radio frequency signal and also establishes a connection with the out - warehouse area through a radio frequency signal. The electronic tag is connected to the corresponding reader / writer area through a radio frequency signal to achieve two - way data transmission and interaction;

[0043] A low - frequency antenna is set in the total reader / writer allocation area. The low - frequency antenna is set at the top of the total reader / writer allocation area. At the same time, another set of low - frequency antennas is set in the out - warehouse area, and the other set of low - frequency antennas is set at the topmost part of the out - warehouse area. The signals between the two sets of low - frequency antennas are interconnected;

[0044] The signal interconnection between the two sets of low - frequency antennas is through a pre - set signal frequency and coding. The low - frequency antenna in the total reader / writer allocation area emits a signal with a specific frequency and coding. The low - frequency antenna in the out - warehouse area receives and identifies the signal to establish a communication link between the two. This interconnection can be used to transmit system start - up and shutdown control signals. First, according to the pre - set frequency of 125 kHz and Manchester coding, the low - frequency antenna module in the total reader / writer allocation area generates a corresponding electrical signal through an internal signal generator. The signal generator generates a periodic oscillation signal at a frequency of 125 kHz and encodes the oscillation signal according to the coding rule to generate a coded signal;

[0045] The generated coded signal will go through amplitude modulation. The modulation circuit will modulate the amplitude of the coded signal according to the requirements of the signal amplitude change. Then, the modulated signal will enter the power amplification circuit, and the power amplification circuit will increase the power of the signal to a pre - set transmission power of 3 watts;

[0046] The signal after power amplification is transmitted outward through the low-frequency antenna at the top of the total reader-writer distribution area; the low-frequency antenna is designed as an antenna structure suitable for a frequency of 125 kHz, and a coil antenna is used to convert the electrical signal into an electromagnetic wave and radiate it into space. The emitted low-frequency electromagnetic wave will propagate in the warehousing environment and search for the low-frequency antenna in the outbound area for signal interaction.

[0047] Above the center of each reader-writer area, a medium-frequency antenna is provided. The frequency of the medium-frequency signal emitted by the medium-frequency antenna is moderate, which can achieve relatively stable data transmission while ensuring a certain penetration ability. When the goods enter the reader-writer area, the signal emitted by the medium-frequency antenna will activate the electronic tag on the goods. After receiving the medium-frequency signal, the electronic tag loads the goods information stored in itself into the reflected signal through modulation technology and then sends it back to the reader-writer. The reader-writer receives the reflected signal through the medium-frequency antenna and demodulates and decodes the signal to obtain the relevant information of the goods.

[0048] Since the medium-frequency antenna is set above the center of the reader-writer area, its signal coverage is mainly concentrated within the reader-writer area. In actual operation, multiple medium-frequency antennas work together to ensure that the goods tags within the entire reader-writer area can be effectively read and written. When there are multiple goods in the reader-writer area, the medium-frequency antenna can use frequency division multiplexing technology to communicate with the electronic tags of different goods in turn to avoid signal conflicts.

[0049] In the reader-writer area, there are shelves. The high-frequency antennas are vertically arranged on the columns of the shelves. Four high-frequency antennas are spaced at the same height on the columns of the shelves. The four high-frequency antennas form a circular high-frequency antenna array, and the radiation direction of the antenna unit faces the inside of the shelf.

[0050] In the circular high-frequency antenna array, the included angle between adjacent antenna units of each circular high-frequency antenna array is 90 degrees, and each antenna unit performs a directional beam, and the beam width is between 30 degrees and 60 degrees. The antenna unit radiates the signal towards the inside of the shelf.

[0051] The circular high-frequency antenna array is arranged along the height direction of the shelf column, and the distance between adjacent circular high-frequency antenna arrays is the same.

[0052] Four high-frequency antennas are spaced 90 degrees apart to form a circular high-frequency antenna array, enabling omnidirectional signal coverage on the same height plane of the shelf. Regardless of the orientation of the goods on the shelf, they can be covered by the signals of at least one antenna unit. This circular array design combined with directional beam technology ensures reliable data interaction between goods at different positions inside the shelf and the high-frequency antennas. Additionally, the spacing between adjacent circular high-frequency antenna arrays is the same, enabling uniform signal coverage in the vertical direction. By reasonably setting the spacing between adjacent circular high-frequency antenna arrays according to the shelf height and the stacking situation of the goods, all goods from the bottom to the top of the shelf can be covered by high-frequency signals. For example, for a taller shelf, the spacing can be appropriately reduced and the number of layers of the circular high-frequency antenna arrays can be increased to ensure the integrity and continuity of the signals.

[0053] First, start and generate a radio frequency signal. The low-frequency antenna at the top of the total reader distribution area begins to work and emits a low-frequency signal. The low-frequency signal has a longer wavelength and can cover a large range, mainly used for the initialization of the entire system and signal induction over a large area. Another set of low-frequency antennas at the top of the outbound area is interconnected with the low-frequency antenna in the total reader distribution area to ensure that the outbound area can also be covered by the low-frequency signal when the system starts, preparing for subsequent goods outbound operations.

[0054] After receiving the radio frequency signal from the total reader distribution area, multiple Reader A areas and Reader B areas start to activate the readers within their respective areas, including Reader A1, Reader A2, Reader A3, and Reader B1, Reader B2, Reader B3.

[0055] The intermediate-frequency antennas directly above each reader area are activated simultaneously. The signals emitted by the intermediate-frequency antennas can effectively penetrate ordinary packaging materials within a relatively short distance and communicate with the electronic tags corresponding to the readers. When the goods enter the reader area, the reader reads or writes the goods information in the electronic tag through the signal emitted by the intermediate-frequency antenna, collecting the name, specification, quantity, and warehousing time of the goods.

[0056] After the goods have been operated on by Reader A and Reader B, the information in their electronic tags has been updated or confirmed. When the goods move to the outbound area, the outbound area can quickly sense the arrival of the goods based on the low-frequency antenna and the previous signal interconnection with the total reader distribution area.

[0057] In the outbound area, the system will check the information in the electronic tag of the goods again to ensure the accuracy of the outbound goods, and then perform the outbound operation process and record the outbound time.

[0058] The intelligent electronic tag management device includes a radio frequency identification module, a control and processing module, a communication module, a storage module, a display and interaction module, and a positioning and navigation module. The radio frequency identification module includes a reader and an electronic tag. The reader is used to transmit radio frequency signals to activate the electronic tag and receive the radio frequency signals carrying the cargo information returned by the electronic tag. The electronic tag is attached to the cargo for storing the cargo information;

[0059] The control and processing module includes a microcontroller and a signal processing circuit. The microcontroller is connected to the radio frequency identification module and is used to control the operation of the reader and receive the radio frequency signals transmitted by the reader. The signal processing circuit is used to process and analyze the received radio frequency signals to extract the cargo information in the electronic tag;

[0060] The communication module has a wired communication interface and a wireless communication module. The wired communication interface is used for stable wired data transmission with an external server. The wireless communication module is used for wireless data interaction with a mobile device or a remote monitoring system. The communication module is connected to the control and processing module and is used to transmit the processed cargo information to an external device and receive instructions from the external device;

[0061] The storage module consists of a data storage unit and a database management system. The data storage unit is connected to the control and processing module and is used to store the cargo information extracted by the signal processing circuit and the system operation records. The database management system is used to manage and query the stored data;

[0062] The display and interaction module includes a display screen and an input device. The display screen is connected to the control and processing module and is used to display the cargo information and the system status. The input device is used for an operator to input instructions and query requests to the control and processing module;

[0063] The positioning and navigation module includes a positioning system and a navigation system. The positioning system is used to determine the location of the cargo in the warehouse. The navigation system is used to provide a cargo handling route for a handling device. The positioning and navigation module is connected to the control and processing module. The control and processing module performs inventory management based on the cargo location information provided by the positioning system and guides the operation of the handling device according to the route provided by the navigation system;

[0064] The intelligent electronic tag management device further includes real-time monitoring. The real-time monitoring sets sensors in the general reader-writer allocation area, reader-writer A area, reader-writer B area, and the out-warehouse area. The sensors are used to collect the position information, equipment operation status information, and goods transfer status information of each area. The real-time monitoring integrates and analyzes the collected information, and transmits the information to the server through the communication module. The management device manages and coordinates the information interaction between the real-time monitoring module and the server.

[0065] In summary, high-frequency signals have high resolution and strong anti-interference ability. By forming a circular array of high-frequency antennas, the signals can be accurately focused inside the shelves, which is especially suitable for reading and writing information on the electronic tags of small and precision goods, effectively reducing the signal leakage outside the shelves and avoiding interference with the signals of other shelves or areas.

[0066] Secondly, the circular high-frequency antenna array can achieve omnidirectional signal coverage on the same height plane of the shelves. No matter which position the goods are in on the shelves, they can be covered by the signals of at least one antenna unit. At the same time, circular high-frequency antenna arrays with the same spacing are arranged along the height direction of the shelf columns, ensuring uniform signal coverage at different heights of the shelves and realizing effective management of goods on different layers of the shelves. This distribution and design method of high-frequency antennas gives full play to the advantages of high-frequency signals and improves the reliability and efficiency of managing small and precision goods.

[0067] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0068] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent electronic label management machine device, characterized in that: It includes a functional partition structure based on location layout, which contains: A general reader / writer allocation area for allocating radio frequency signals to coordinate the reading and writing operations within the system; Multiple reader / writer A areas, each reader / writer A area contains at least one reader / writer A, and each reader / writer A corresponds to an electronic tag A. The reader / writer A is used to read and write the information of its corresponding electronic tag A; Multiple reader / writer B areas, each reader / writer B area contains at least one reader / writer B, and each reader / writer B corresponds to an electronic tag B. The reader / writer B is used to read and write the information of its corresponding electronic tag B; An outbound area for performing outbound operation processing on the goods after the reading and writing operations. The outbound area is connected to the reader / writer A area and the reader / writer B area, so that the goods can enter the outbound area for the outbound process after passing through the reader / writer A and the reader / writer B operations; The general reader / writer allocation area establishes a connection with the electronic tag through radio frequency signals, and establishes a connection with the outbound area through radio frequency signals. The electronic tag is connected to the corresponding reader / writer area through radio frequency signals to realize the bidirectional transmission and interaction of data; A low-frequency antenna is set in the general reader / writer allocation area, and the low-frequency antenna is set at the top of the general reader / writer allocation area. At the same time, another set of low-frequency antennas is set in the outbound area, and the other set of low-frequency antennas is set at the topmost part of the outbound area. The signals between the two sets of low-frequency antennas are interconnected; A medium-frequency antenna is set directly above each reader / writer area. Shelves are set up in the reader / writer area. High-frequency antennas are vertically set on the columns of the shelves. Four high-frequency antennas are spaced at the same height on the columns of the shelves. The four high-frequency antennas form a circular high-frequency antenna array, and the radiation direction of the antenna unit faces the inside of the shelves.

2. The intelligent electronic label management machine device according to claim 1, characterized in that: It includes a radio frequency identification module, a control and processing module, a communication module, a storage module, a display and interaction module, and a positioning and navigation module.

3. The intelligent electronic label management machine device according to claim 2, characterized in that: The radio frequency identification module includes a reader / writer and an electronic tag. The reader / writer is used to transmit radio frequency signals to activate the electronic tag and receive the radio frequency signals carrying the goods information returned by the electronic tag. The electronic tag is attached to the goods for storing the goods information.

4. An intelligent electronic label management machine device according to claim 3, characterized in that: The control and processing module includes a microcontroller and a signal processing circuit. The microcontroller is connected to the radio frequency identification module for controlling the operation of the reader / writer and receiving the radio frequency signals transmitted by the reader / writer. The signal processing circuit is used to process and analyze the received radio frequency signals to extract the goods information in the electronic tag; The communication module has a wired communication interface and a wireless communication module. The wired communication interface is used for stable wired data transmission with an external server. The wireless communication module is used for wireless data interaction with a mobile device or a remote monitoring system. The communication module is connected to the control and processing module for transmitting the processed goods information to an external device and receiving the instructions of the external device.

5. The intelligent electronic label management machine device according to claim 4, characterized in that: The storage module consists of a data storage unit and a database management system. The data storage unit is connected to the control and processing module and is used to store the goods information extracted by the signal processing circuit and the system operation records. The database management system is used to manage and query the stored data.

6. The intelligent electronic label management machine device according to claim 5, wherein: The display and interaction module includes a display screen and an input device. The display screen is connected to the control and processing module and is used to display the goods information and the system status. The input device is used for the operator to input instructions and query requests to the control and processing module. The positioning and navigation module includes a positioning system and a navigation system. The positioning system is used to determine the position of the goods in the warehouse. The navigation system is used to provide the goods handling route for the handling equipment. The positioning and navigation module is connected to the control and processing module. The control and processing module performs inventory management based on the goods position information provided by the positioning system and guides the operation of the handling equipment according to the route provided by the navigation system.

7. The intelligent electronic label management machine device according to claim 6, characterized in that: The intelligent electronic tag management device further includes real-time monitoring. The real-time monitoring sets sensors in the general reader-writer allocation area, reader-writer A area, reader-writer B area, and the outbound area. The sensors are used to collect the position information of each area, the operation status information of the equipment, and the flow status information of the goods.

8. An intelligent electronic label management machine device according to claim 7, characterized in that: The real-time monitoring integrates and analyzes the collected information and transmits the information to the server through the communication module. The intelligent electronic tag management device manages and coordinates the information interaction between the real-time monitoring module and the server.

9. The intelligent electronic label management machine device according to claim 1, characterized in that: In the circular high-frequency antenna array, the included angle between adjacent antenna units of each group of circular high-frequency antenna arrays is 90 degrees, and each antenna unit performs a directional beam with a beam width between 30 degrees and 60 degrees. The antenna unit radiates signals towards the inside of the shelf.

10. The intelligent electronic label management machine device according to claim 9, characterized in that: The circular high-frequency antenna array is set up along the height direction of the shelf column, and the spacing between adjacent circular high-frequency antenna arrays is the same.

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