An RFID near-field identification device

Abstract

This utility model belongs to the field of industrial equipment technology, specifically disclosing an RFID near-field identification device, including: a main frame, adopting a vertical flat panel structure, with a gantry for accommodating the RFID antenna and electronic control components; the bottom of the vertical flat panel is fixed to the ground by fixed feet, and a fixed door panel is provided on the side facing the goods to be detected to cover the RFID antenna and the electronic control components; a main control unit, including a touch screen and a control host, the touch screen and the control host being integrated into one unit and fixed to a column on one side of the vertical flat panel by a cantilever, the cantilever being able to rotate around the column. The advantage of this utility model is that it can efficiently and accurately read goods information.

Description

Technical Field

[0001] This utility model relates to the field of industrial equipment technology, and in particular to an RFID near-field identification device. Background Technology

[0002] In the warehousing and logistics industry, warehouse management has always been a major headache for businesses. Facing the repetitive daily inbound and outbound operations, warehouse management plays a crucial role in the entire supply chain. Failure to scientifically manage inbound, outbound, and inventory levels can lead to increased operating costs, low efficiency, and compromised service quality. Modern warehouse operations and inventory control are highly complex and diverse; relying solely on manual memory and data entry is not only time-consuming and labor-intensive but also prone to errors, causing unnecessary losses for businesses. Currently, much warehouse management is based on standardized manual operations and semi-automated computer management, which has the following drawbacks:

[0003] It has few auxiliary devices and limited functionality, making it unsuitable for long-term work.

[0004] The statistical results of cargo data are poor.

[0005] To address these shortcomings, it is essential to design a highly efficient device for acquiring cargo information. Utility Model Content

[0006] To address the aforementioned shortcomings and improve the efficiency of product identification, this utility model proposes an RFID near-field identification device, comprising:

[0007] The main frame adopts a vertical flat plate structure. The interior of the vertical flat plate structure is used to house the RFID antenna and electronic control components. The bottom of the vertical flat plate structure is fixed to the ground by fixed feet. A fixed door panel is provided on the side facing the goods to be inspected to cover the RFID antenna and the electronic control components. The RFID antenna is a directional, short-range antenna, and its identification range is the goods to be inspected within a first distance directly in front of the fixed door panel.

[0008] The main control unit includes a touch screen and a control host. The touch screen and the control host are integrated into one unit and fixed to one side of the vertical flat plate structure by a cantilever. The cantilever can rotate around the side.

[0009] In the aforementioned identification device, multiple RFID antennas are arranged sequentially from top to bottom inside the vertical flat plate structure to detect stacked goods to be detected.

[0010] In the aforementioned identification device, the side of the fixed foot near the item to be detected is also provided with a positioning and limiting structure to restrict the parking position of the item to be detected.

[0011] In the aforementioned identification device, the positioning and limiting structure is a pair of positioning and limiting feet, and the distance between the positioning and limiting feet and the vertical plate is within the range where the main control unit can normally read RFID information.

[0012] In the aforementioned identification device, the positioning limiting foot includes a guiding limiting surface. During installation, the guiding limiting surfaces are arranged opposite to each other, forming a flared opening between the two guiding limiting surfaces. The larger end of the flared opening faces the product to be detected, and the opening distance of the larger end is greater than the packaging size of the product to be detected. When the product to be detected is pushed in, it is used to guide its forward direction. The opening distance of the smaller end is less than the packaging size of the product to be detected, thereby limiting the product to be detected at a position greater than the reading distance.

[0013] In the aforementioned identification device, the positioning and limiting structure is a positioning and limiting plate, which is fixed at the parking position. The distance between the parking position and the vertical plate is within the range where the main control unit can normally read RFID information.

[0014] In the aforementioned identification device, the two ends of the positioning limiting plate also include symmetrical limiting structures, and the distance between the limiting structures is approximately equal to the packaging size of the goods to be inspected, which is used to limit the left and right parking positions of the goods to be inspected.

[0015] In the aforementioned identification device, photoelectric sensors are also installed on the two upright columns of the vertical plate to sense whether the goods to be detected have been placed in place.

[0016] In the aforementioned identification device, the main control unit also includes a WIFI module, which is mounted on the casing of the control host and is used to receive instructions from the host computer.

[0017] In the aforementioned identification device, the vertical flat panel is made of high-performance steel plate, and the fixed door panel is made of durable engineering plastic.

[0018] Compared with existing technologies, this invention can quickly and automatically collect data from electronic tags in multiple dimensions, and can read multiple electronic tags in a single collection. By using a directional, short-range RFID antenna in conjunction with a vertical flat panel structure, it can accurately read product information within a specified range, greatly reducing the defects of missed or misread tags and improving the efficiency of product identification during warehousing and freight transportation.

[0019] When used in conjunction with a wireless communication module, it can also achieve simple installation and reduce wiring, making it easy to quickly build RFID application systems in environments such as factories and warehouses. Attached Figure Description

[0020] Figure 1 This is a front view of the RFID near-field identification device of this utility model;

[0021] Figure 2 This is a side view of the RFID near-field identification device of this utility model;

[0022] Figure 3 This is a perspective view of the RFID near-field identification device of this utility model;

[0023] Figure 4 This is a top view of the RFID near-field identification device of this utility model;

[0024] Figure 5 This is a schematic diagram of the sensor installation of the RFID near-field identification device in this utility model;

[0025] Figure 6 This is a schematic diagram of the RFID near-field identification device identifying goods in this utility model;

[0026] Figure 7 This is a functional diagram of the main control unit of the RFID near-field identification device in this utility model. Detailed Implementation

[0027] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0028] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures, and is assumed to be the same definition.

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0030] The RFID near-field identification device proposed in this application is used to identify electronic tags on goods parked in a designated area in front of the device. For similar wireless tags parked outside the designated area, the device avoids reading by adjusting the directional sensitivity of the RFID antenna, thereby achieving accurate identification of electronic tags on goods to be inspected in densely packed environments and reducing misreading and cross-reading.

[0031] Figure 1 This is a front view of the RFID near-field identification device of this utility model. As shown in the figure, the RFID near-field identification device may include two parts: a main frame 1 and a main control unit 2.

[0032] The main frame 1 adopts a vertical flat panel structure, including a vertical flat panel 16 and a fixed door panel 17. The vertical flat panel 16 is the main support structure of the RFID near-field identification device, fixed to the ground at the bottom by fixed feet, and made of a material with good sturdiness and support strength. For example, the vertical flat panel 16 can be made of high-performance steel plate. The RFID antenna and electronic control components are made into plate-shaped unit modules and fixed to the two columns of the vertical flat panel 16 using screws and other parts. The selected RFID antenna can be an array antenna, arranged sequentially from top to bottom in plate-shaped unit modules similar to the vertical flat panel 16, thus enabling the identification of multiple stacked goods. The RFID antenna can also be a specially designed directional, short-range antenna to achieve the effect of reading only the stack of goods directly in front of the device, avoiding the identification of information from the electronic tags of other goods placed nearby (avoiding cross-reading). The fixed door panel 17 can be made of non-metallic materials, such as durable engineering plastics, to reduce the shielding effect of metal on RFID signals and lower the probability of misreading and misjudgment. The fixed door panel 17 is also fixed to the vertical plate 16 by clips, and can be used to cover the RFID antenna and electronic control components to prevent dust accumulation. The fixed door panel 17 can be installed on the side facing the goods. The main control unit 2 includes a touch screen and a control host. Preferably, the touch screen and the control host can be integrated into one unit and fixed to a column on one side of the vertical plate 16 by a cantilever 21. The cantilever 21 can rotate around the column to facilitate user adjustment of the position. The main control unit 2 may also include a WIFI module, which is set on the housing of the control host and used to receive instructions from the host computer. In the application scenario of warehouse management, the host computer can be an inbound and outbound management system. The inbound and outbound management system can be used to issue information on items that need to be inbound or outbound, so that the RFID near-field identification device can determine whether the read goods information matches the requirements of the inbound and outbound management system.

[0033] First refer to Figure 6, Figure 6 This is a schematic diagram of the RFID near-field identification device for identifying goods in this utility model. The diagram shows the relative position of the goods to be detected (3) after it has been placed in place, relative to the main frame 1 and the main control unit 2. The goods to be detected (3) can be moved to a designated area in front of the main frame 1 using tools such as a trolley. When the goods to be detected (3) enters the designated area, the main control unit 2 can automatically sense that the goods are in place, and thus can automatically sense / collect information from the electronic tags on the goods, such as RFID tags. Then, it can further collaborate with the warehouse management system to determine whether the goods to be detected (3) is the expected goods.

[0034] Figure 2 This is a side view of the RFID near-field identification device in this utility model. Figure 3 This is a perspective view of the RFID near-field identification device of this utility model. Various switches and connectors, such as power switches, power connectors, network cable plugs, and signal control plugs, can also be installed on the upright column of the vertical flat plate 16. Preferably, these are mounted on the same side of the upright column as the main control unit 2. Combined with... Figure 7 A positioning and limiting structure 11 is also provided on the side of the vertical plate 16 facing the goods to restrict the parking position of the goods 3 to be inspected. Specifically, the positioning and limiting structure 11 can limit the distance between the goods 3 to be inspected and the vertical plate 16, can also limit the alignment of the center line of the goods 3 to be inspected with the center line of the vertical plate 16, or limit the correspondence between the RFID tag on the goods 3 to be inspected and the RFID antenna (sensor) inside the vertical plate 16. This optimizes the RFID reading effect, improves the reading response time and accuracy, and thus improves work efficiency.

[0035] Figure 4This is a top view of the RFID near-field identification device of this utility model, and also shows one embodiment of the positioning and limiting structure 11. In this embodiment, the positioning and limiting structure 11 can be a pair of positioning and limiting feet, and the distance between the parking position and the vertical plate 16 is within the range where the main control unit 2 can normally read RFID information. The pair of positioning and limiting feet each includes a guiding and limiting surface, and the two guiding and limiting surfaces 111 are set opposite to each other during installation. A flared opening is formed between the two guiding and limiting surfaces 111. The larger end of the flared opening faces the goods 3 to be detected, and the opening distance of the larger end is greater than the packaging size of the goods 3 to be detected, so that when the goods 3 to be detected is pushed in, it can guide its forward direction and guide the electronic tag on the goods 3 to stop in a position with good RFID sensing effect. Or, it can limit the left and right position of the goods 3 to be detected when it stops. When the electronic tag on the goods is set in a fixed position (e.g., the center of the outer packaging bag), the RFID antenna (sensing device) can be pre-set in the corresponding position on the vertical flat plate 16, thereby maximizing the RFID reading effect, improving the reading response time and accuracy, and thus improving work efficiency. The opening distance of the small end of the horn is smaller than the packaging size of the goods 3 to be inspected, thus confining the goods 3 to be inspected to the parking position.

[0036] In another embodiment, the positioning and limiting structure 11 can be a simple positioning and limiting plate, which is fixed at the parking position to prevent the goods to be inspected 3 from moving closer to the vertical plate 16. The distance between the parking position and the vertical plate 16 is within the range where the main control unit 2 can normally read RFID information. Furthermore, the two ends of the positioning and limiting plate also include symmetrical limiting structures, and the distance between the two limiting structures is approximately equal to the packaging size of the goods to be inspected 3, thereby limiting the left and right parking positions of the goods to be inspected 3.

[0037] Another preferred embodiment is to combine the two embodiments described above, that is, to insert another positioning limiting plate between a pair of positioning limiting feet, so that the parking position of the goods to be inspected 3 can be restricted to any position within the horn opening.

[0038] Figure 5This is a schematic diagram of the sensor installation for the RFID near-field identification device of this utility model. The sensor shown in the diagram is used to detect whether the item 3 to be detected has been placed in place. Preferably, two photoelectric sensors 13 can be used. The two photoelectric sensors 13 are respectively installed on the two columns of the vertical plate 16, and preferably on the lower part of the columns, to sense whether there is a large package in front of the RFID near-field identification device. Specifically, the center of the photoelectric sensor 13 is installed 21 cm above the ground and tilted downwards at about 15 degrees. The photoelectric sensing distance is adjusted to 50 cm, so that it cannot sense the ground. When one of the two photoelectric sensors 13 senses a large package in front, RFID identification can be activated.

[0039] Figure 7 This is a functional diagram of the main control unit 2 of the RFID near-field identification device in this utility model. Clearly, the main control unit 2 should include an infrared detection module, an RFID sensing module, and a microprocessor. When the infrared detection module (e.g., photoelectric sensor 13) senses that the item 3 to be detected is parked in front of the RFID near-field identification device, it transmits this information to the microprocessor via the communication bus. The microprocessor then notifies the RFID sensing module (via the RFID antenna) to read the specific information of the item. After receiving this information, the microprocessor compares it with the inbound / outbound information provided by the host computer to determine whether the currently detected item 3 is one of all items. Then, it sends a message back to the host computer indicating whether the item has successfully entered or exited the warehouse, completing the current inbound / outbound management.

[0040] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0041] Similarly, it should be understood that, in order to simplify the present invention and aid in understanding one or more of the various aspects of the invention, in the above description of exemplary embodiments of the present invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof. However, this disclosure should not be construed as reflecting an intention that the claimed invention requires more features than expressly recited in each claim. Rather, as reflected in the claims, the inventive aspect lies in fewer than all features of the single embodiment disclosed above. Therefore, the claims following the detailed description are hereby expressly incorporated into that detailed description, wherein each claim itself is a separate embodiment of the invention.

[0042] Those skilled in the art will understand that modules in the device of the embodiments can be adaptively changed and placed in one or more devices different from that embodiment. Modules, units, or components in the embodiments can be combined into a single module, unit, or component, and further, they can be divided into multiple sub-modules, sub-units, or sub-components. Except where at least some of such features and / or processes or units are mutually exclusive, any combination can be used to combine all features disclosed in this specification (including the accompanying claims, abstract, and drawings) and all processes or units of any method or device so disclosed. Unless expressly stated otherwise, each feature disclosed in this specification (including the accompanying claims, abstract, and drawings) may be replaced by an alternative feature serving the same, equivalent, or similar purpose.

[0043] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features but not others included in other embodiments, combinations of features from different embodiments are intended to be within the scope of this invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

Claims

1. An RFID near-field identification device, characterized in that, include: The main frame adopts a vertical flat plate structure. The interior of the vertical flat plate structure is used to house the RFID antenna and electronic control components. The bottom of the vertical flat plate structure is fixed to the ground by fixed feet. A fixed door panel is provided on the side facing the goods to be inspected to cover the RFID antenna and the electronic control components. The RFID antenna is a directional, short-range antenna, and its identification range is the goods to be inspected within a first distance directly in front of the fixed door panel. The main control unit includes a touch screen and a control host. The touch screen and the control host are integrated into one unit and fixed to one side of the vertical flat plate structure by a cantilever. The cantilever can rotate around the side.

2. The identification device as described in claim 1, characterized in that, Multiple RFID antennas are arranged sequentially from top to bottom inside the vertical flat plate structure to detect stacked goods to be detected.

3. The identification device as described in claim 1, characterized in that, The fixed foot is also provided with a positioning and limiting structure on the side close to the product to be inspected, which is used to limit the parking position of the product to be inspected.

4. The identification device as described in claim 3, characterized in that, The positioning and limiting structure consists of a pair of positioning and limiting feet, and the distance between the positioning and limiting feet and the vertical plate is within the range where the main control unit can normally read RFID information.

5. The identification device as described in claim 4, characterized in that, The positioning limiting foot includes a guiding limiting surface. During installation, the guiding limiting surfaces are arranged opposite to each other, forming a flared opening between the two guiding limiting surfaces. The larger end of the flared opening faces the product to be inspected, and the opening distance of the larger end is greater than the packaging size of the product to be inspected. When the product to be inspected is pushed in, it is used to guide its forward direction. The smaller end of the flared opening has an opening distance less than the packaging size of the product to be inspected, thereby limiting the product to be inspected at the parking position.

6. The identification device as described in claim 3, characterized in that, The positioning and limiting structure is a positioning and limiting plate, which is fixed at the parking position. The distance between the parking position and the vertical plate is within the range where the main control unit can normally read RFID information.

7. The identification device as described in claim 6, characterized in that, The positioning and limiting plate also includes symmetrical limiting structures at both ends. The distance between the limiting structures is approximately equal to the packaging size of the goods to be inspected, which is used to limit the left and right parking positions of the goods to be inspected.

8. The identification device as described in claim 1, characterized in that, The two uprights of the vertical plate are also equipped with photoelectric sensors to sense whether the goods to be tested have been placed in place.

9. The identification device as described in claim 1, characterized in that, The main control unit also includes a WIFI module, which is installed on the casing of the control host and is used to receive instructions from the host computer.

10. The identification device as described in claim 1, characterized in that, The vertical flat panel is made of high-performance steel plate, and the fixed door panel is made of durable engineering plastic.

Images