CN217404881U

CN217404881U - Passage door

Info

Publication number: CN217404881U
Application number: CN202220160441.8U
Authority: CN
Inventors: 王杰; 王晶; 朱铁均; 王一超
Original assignee: Hanhai Information Technology Shanghai Co Ltd
Current assignee: Hanhai Information Technology Shanghai Co Ltd
Priority date: 2022-01-20
Filing date: 2022-01-20
Publication date: 2022-09-09
Anticipated expiration: 2032-01-20

Abstract

The application relates to an access door for batch reading of data of a radio frequency tag on goods, comprising a door body, a first antenna and a second antenna. The first antenna is located inside the door main body and used for reading data of the radio frequency tags on goods passing through the door main body, and the second antenna is located outside the door main body and used for reading data of the radio frequency tags on the goods in the temporary storage area outside the door main body. Through setting up the data that the second antenna reads the goods in the buffers, will carry out the analysis contrast through the data that first antenna and second antenna read, can avoid the passway to take place to cluster and read the phenomenon to improve the reading rate of accuracy of passway, simultaneously, compare in totally enclosed's passway, the embodiment of this application can also save the cost of passway, improves the commonality.

Description

Access door

Technical Field

The application relates to the field of wireless radio frequency tags, in particular to an access door.

Background

At present, the radio frequency technology is widely applied to the field of logistics and warehousing, and the access door is used for reading the goods information with the radio frequency tag, so that the management benefit of a warehousing system can be improved. However, due to the physical characteristics of reflection, diffraction and the like of the electromagnetic waves, the cargo information in the temporary storage area is easily misread by the passage door in the using process, so that the phenomenon of serial reading is caused, and the reading accuracy of the passage door is reduced.

For a large-scale warehousing system, a single-side shielding and antenna transmitting power reducing mode is adopted to reduce a serial reading area in the prior art, however, the single-side shielding needs a longer channel depth, space waste can be caused, and the antenna transmitting power reducing can reduce the reading quantity and lead to reading omission.

SUMMERY OF THE UTILITY MODEL

The application provides a passway, can solve the passway and take place the problem of cluster reading easily when reading wireless radio frequency label, improve and read the rate of accuracy.

The application provides an access door for read the data of the wireless radio frequency label on the goods in batches, the access door includes:

a door main body;

a first antenna located inside the door body for reading data passing through a radio frequency tag on cargo inside the door body;

and the second antenna is positioned outside the door main body and used for reading the data of the radio frequency tag on the goods in the temporary storage area outside the door main body.

In one possible design, the door main body comprises two door plates which are arranged oppositely, a channel for passing goods with radio frequency identification tags is formed between the two door plates, and the first antenna is arranged in the door plates.

In one possible embodiment, the second antennas are arranged on the outer sides of the two door panels.

In one possible embodiment, the duct has an inlet and an outlet, and the second antenna is located on a side of the door panel adjacent to the inlet and/or on a side of the door panel adjacent to the outlet, respectively, in the extension direction of the door panel.

In a possible design, the door plant includes the installation department, the installation department is for forming ladder groove on the door plant, be provided with the edge on the installation department the thickness direction of door plant court the bellied installation piece in the outside of passageway, the second antenna with installation piece fixed connection.

In one possible design, the second antenna has a mounting surface, and an included angle alpha is formed between the mounting surface and the extension direction of the door panel, wherein alpha is more than or equal to 30 degrees and less than or equal to 60 degrees.

In a possible design, two second antennas are arranged on the mounting portion along the height direction of the door panel, and the distance L1 between the two second antennas is 0.8m to 1 m.

In one possible design, the distance L2 between the two door panels is 3m to 5 m.

In a possible design, the inside of the door main body is further provided with a geomagnetic sensor, and the geomagnetic sensor is used for triggering the first antenna to read data passing through the wireless radio frequency tag on the goods in the door main body when the goods pass through the inside of the door main body.

In a possible design, a channel is formed in the door main body, the channel has an inlet and an outlet, the inlet and the outlet are both provided with the geomagnetic sensors along the extending direction of the door panel, and the distance L3 between the two geomagnetic sensors is 2.5m to 3 m.

In this application, the passway is applied to in the big-and-middle-sized warehouse system, can read the data of the radio frequency identification tag on the goods through the passway in batches and fast to the realization is to the batch management of goods in the warehouse. The door main body is internally provided with a first antenna and a reader-writer, the access door is in a working state, the first antenna emits a radio frequency signal with a specific frequency outwards, when goods pass through the door main body, a wireless radio frequency tag positioned on the goods can receive the signal emitted by the first antenna, then data stored in the access door can be sent out through the built-in antenna, and the reader can receive the signal of the wireless radio frequency tag through the first antenna, so that the data of the goods can be read. Wherein, the radio frequency signal is electromagnetic wave, it has physical characteristics of reflection, diffraction, etc., it is difficult to manually control its radiation range, so that the signal emitted by the first antenna can reach the temporary storage area outside the passage door, and the passage door can read the data of the goods in the temporary storage area, and the serial reading occurs, therefore, the embodiment of the application sets the second antenna outside the door main body, the data of the wireless radio frequency tag on the goods in the temporary storage area outside the door main body is read by the second antenna, the reader-writer analyzes and compares all the read data, if the data of the same wireless radio frequency tag can be read by the first antenna and the second antenna simultaneously, the serial reading occurs, that is, the goods with the wireless radio frequency tag is located in the temporary storage area, so the data can be discarded, and the data of the goods read only by the first antenna is regarded as the goods is located in the passage door, so the data is uploaded to the background for recording. Through setting up the data that the second antenna reads the goods in the buffers, will carry out the analysis contrast through the data that first antenna and second antenna read, can avoid the passway to take place to cluster and read the phenomenon to improve the reading rate of accuracy of passway, simultaneously, compare in totally enclosed's passway, the embodiment of this application can also save the cost of passway, improves the commonality.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

FIG. 1 is a schematic view of a first embodiment of an access door provided herein;

FIG. 2 is a schematic structural view of an access door provided herein in a second embodiment;

FIG. 3 is a side view of FIG. 1;

fig. 4 is a schematic structural view of the mounting part in fig. 1.

Reference numerals are as follows:

1-a door body;

11-a second antenna;

111-a mounting surface;

12-a door panel;

121-a mounting portion;

121 a-mounting block;

13-a channel;

131-an inlet;

132-an outlet;

2-a temporary storage area;

3-goods;

4-geomagnetic sensor.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

Detailed Description

For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.

It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It should be noted that the directional terms such as "upper", "lower", "left", "right", etc. described in the embodiments of the present application are described in the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.

Radio Frequency Identification (RFID) is a non-contact automatic identification technology, can automatically identify a target object and acquire related data through a radio frequency signal, and does not need manual interference in identification work. The wireless radio frequency system consists of three parts, namely an antenna, a reader-writer and a wireless radio frequency label, and the basic working principle is as follows: the reader transmits a radio frequency signal with specific frequency through the antenna, can receive the signal transmitted by the antenna when the radio frequency tag enters an effective working area, and obtains energy through generated induced current, so that data stored in the radio frequency tag is transmitted out through the built-in antenna, the reader can read a modulation signal transmitted by the radio frequency tag through the antenna, and effective information is uploaded to a background system after the modulation signal is demodulated and decoded by the reader, so that the reading of the radio frequency tag is completed.

The wireless radio frequency technology can read data through external materials of the wireless radio frequency tag, and compared with common bar codes, the wireless radio frequency tag has the advantages of water resistance, magnetism prevention, long service life, long reading distance, large storage data capacity, and capability of being changed and encrypted, and is widely applied to the fields of logistics, retail sale, identity recognition and the like.

The embodiment of the application provides an access door for batch reading of data of radio frequency tags on goods 3, as shown in fig. 1, the access door includes a door main body 1, a first antenna (not shown in the figure) and a second antenna 11, the first antenna is located inside the door main body 1 and used for reading data of the radio frequency tags on the goods 3 passing through the door main body 1, and the second antenna 11 is located outside the door main body 1 and used for reading data of the radio frequency tags on the goods 3 in a temporary storage area 2 outside the door main body 1.

In this embodiment, the access door is applied to a large and medium-sized warehousing system, and can read data of the radio frequency tags on the goods 3 passing through the access door in batch and quickly, so that batch management of the goods 3 in the warehouse is realized. The inside of door main part 1 is provided with first antenna and read write line, and the passway door is under operating condition, by the radio frequency signal of first antenna outward transmission specific frequency, and when goods 3 passed through in the door main part 1, the wireless radio frequency label on goods 3 can receive the signal that first antenna was launched, then sends out the data that self stored through built-in antenna, and the reader can receive wireless radio frequency label's signal through first antenna to read the data of goods 3. Wherein, the radio frequency signal is an electromagnetic wave, which has physical characteristics of reflection, diffraction and the like, and it is difficult to manually control the radiation range thereof, so that the signal transmitted by the first antenna can reach the temporary storage area 2 outside the passage door, and the passage door can read the data of the goods 3 in the temporary storage area 2, and serial reading occurs, therefore, in the embodiment of the application, the second antenna 11 is arranged outside the door main body 1, the data of the radio frequency tag on the goods 3 in the temporary storage area 2 outside the door main body 1 is read through the second antenna 11, the reader-writer analyzes and compares all the read data, if the data of the same radio frequency tag can be simultaneously read through the first antenna and the second antenna 11, serial reading is considered to occur, that is, the goods 3 with the radio frequency tag is located in the temporary storage area 2, and therefore, the data can be discarded, and the data of the goods 3 read only through the first antenna is considered to be that the goods 3 are located in the passage door, therefore, the data is uploaded to the background for recording. Through setting up the data that second antenna 11 read goods 3 in the buffers 2, will carry out the analysis contrast through the data that first antenna and second antenna 11 read, can avoid the passway door to take place to cluster and read the phenomenon to improve the reading rate of accuracy of passway door, simultaneously, compare in totally enclosed's passway door, the embodiment of this application can also save the cost of passway door, improves the commonality.

Specifically, by adjusting the transmitting power of the second antenna 11, the signal radiation range of the second antenna 11 can be adjusted, so that the system can only receive the signal of the wireless radio frequency tag on the cargo 3 located in the temporary storage area 2, and cannot receive the signal of the wireless radio frequency tag on the cargo 3 located in the door main body 1, thereby avoiding the situation that the data of the cargo close to the second antenna 11 in the door of the passage is judged as serial reading, and ensuring the reading accuracy of the second antenna 11.

In a specific embodiment, as shown in fig. 1, the door body 1 includes two door panels 12 disposed opposite to each other, a passage 13 for passing the goods 3 with the radio frequency tag is formed between the two door panels 12, and the first antenna is disposed in the door panels 12. Specifically, in order to satisfy the requirement that the cargo 3 passes through the space formed by the door panels 12 arranged oppositely, the wireless radio frequency tag on the cargo 3 can receive the signal transmitted by the first antenna. The first antenna may be disposed in the closed inner cavity of the door panel 12 by forming the closed inner cavity in a middle portion of the opposite sides of the two door panels 12. The second antenna 11 is disposed outside a space formed by two door panels 12 disposed opposite to each other, and the data of the rf tag on the goods 3 in the temporary storage area 2 is read by the second antenna 11.

In this embodiment, door main part 1 is the semi-enclosed structure, two door plant 12 that set up relatively are used for setting up first antenna and read write line, two door plant 12 have certain interval, in order to form passageway 13, supply the goods 3 that have wireless radio frequency identification label to pass through, and first antenna is located the inboard of door plant 12, be convenient for read the data of wireless radio frequency identification label on the goods 3 in the passageway 13, the scope of passageway 13 is exactly the effective reading range of passageway door, the data homoenergetic of wireless radio frequency identification label on the goods 3 that gets into passageway 13 promptly can be read by the passageway door.

The number of the first antennas is not limited, and may be set according to the width, length or other actual requirements of the access door.

In a specific embodiment, as shown in FIG. 2, the second antennas 11 are disposed on the outer sides of the two door panels 12, respectively.

In this embodiment, the temporary storage area 2 is located the outside of passway door, sets up the second antenna 11 in the outside of door plant 12, and the signal that the wireless radio frequency label of being convenient for second antenna 11 receipt on the goods 3 that is located temporary storage area 2 launched. Because the area that the second antenna 11 can transmit and receive signals is limited, the second antenna 11 is respectively arranged at the outer sides of the two door panels 12 of the access door, so that the signal radiation range of the second antenna 11 can be increased, and the reader-writer can read more data of the wireless radio frequency tags on the goods 3 in the temporary storage area 2 through the second antenna 11.

In a specific embodiment, as shown in fig. 1 and 3, the passageway 13 has an inlet 131 and an outlet 132, and the second antenna 11 is located on the side of the door panel 12 near the inlet 131 and/or the second antenna 11 is located on the side of the door panel 12 near the outlet 132, respectively, along the extending direction of the door panel 12.

In this embodiment, the cargo 3 moves in the channel 13 from the inlet 131 to the outlet 132. The position of buffer 2 is different in different warehouses, and second antenna 11 should be close to buffer 2 setting to the data of goods 3 in buffer 2 reads. Therefore, if the buffer 2 is disposed near the inlet 131, the second antenna 11 may be disposed on the door panel 12 near the inlet 131, and if the buffer 2 is disposed near the outlet 132, the second antenna 11 may be disposed on the door panel 12 near the outlet 132, so as to facilitate reading of the data of the goods 3 in the buffer 2 near the passage door.

In a specific embodiment, as shown in fig. 1 and 4, the door panel 12 includes a mounting portion 121, the mounting portion 121 is a stepped groove formed on the door panel 12, a mounting block 121a protruding toward the outer side of the channel 13 along the thickness direction of the door panel 12 is disposed on the mounting portion 121, and the second antenna 11 is fixedly connected to the mounting block 121 a.

In this embodiment, the mounting portion 121 is a stepped groove, and can provide a mounting space for the mounting block 121a, thereby avoiding occupying additional space. The installation piece 121a is protruding towards the outside of passageway 13 along the thickness direction of door plant 12, and the one end of second antenna 11 is connected with the arch of installation piece 121a, makes second antenna 11 towards temporary storage area 2 to make in the signal of the outside transmission specific frequency of second antenna 11 can reach temporary storage area 2, be convenient for read the data of goods 3 in temporary storage area 2.

The second antenna 11 and the mounting block 121a may be fixedly connected by bonding, welding, or screwing.

Specifically, as shown in fig. 1 and 4, the second antenna 11 has a mounting surface 111, and an included angle α is formed between the mounting surface 111 and the extending direction of the door panel 12, where α is greater than or equal to 30 ° and less than or equal to 60 °. For example, the angle α between the mounting surface 111 and the extending direction of the door panel 12 may be 30 °, 40 °, 50 °, 60 °, and so on.

In this embodiment, the radiation range of the antenna is limited, and therefore, the installation position of the second antenna 11 needs to be limited, so that the radio frequency signal emitted by the second antenna can cover the whole area of the temporary storage area 2 beside the access door. When the included angle α between the mounting surface 111 and the extending direction of the door panel 12 is too large (for example, greater than 60 °), the radio frequency signal emitted by the second antenna 11 cannot reach the temporary storage area 2 outside the channel 13 and near the outer side of the door panel 12; when the included angle α is too small (for example, smaller than 30 °), the rf signal emitted by the second antenna 11 cannot reach the temporary storage area 2 outside the passage 13 and near the inner side of the door panel 12, so that the recognition rate of the passage door for serial reading is reduced. Therefore, when the included angle α between the mounting surface 111 and the extending direction of the door plate 12 is greater than or equal to 30 ° and less than or equal to 60 °, the radio frequency signal emitted by the second antenna 11 can cover the whole area of the temporary storage area 2 beside the access door.

In a specific embodiment, as shown in fig. 4, two second antennas 11 are disposed on the mounting portion 121 along the height direction of the door panel 12, and the distance L1 between the two second antennas 11 is 0.8m to 1 m. For example, the distance L1 between the two second antennas 11 may be specifically 0.8m, 0.9m, 0.95m, 1 m.

In this embodiment, the two second antennas 11 disposed on the mounting portion 121 can expand the reading range of the second antenna 11 in the temporary storage area 2. When the distance L1 between the two second antennas 11 is too small (e.g. smaller than 0.8 m), the signals of the two second antennas 11 may interfere and affect the reading result. Therefore, when the distance L1 between the two second antennas 11 is 0.8m to 1m, the accuracy of reading the data of the goods 3 in the temporary storage area 2 by the second antennas 11 can be ensured, and the second antennas 11 can be prevented from occupying too much space, which results in the overlarge volume of the door panel 12.

If the range of the buffer area 2 is large, the mounting portion 121 may also be provided with a plurality of second antennas 11 for reading the data of the goods 3 in the buffer area 2.

In one particular embodiment, as shown in FIG. 2, the distance L2 between door panels 12 is between 3m and 5 m. For example, the distance L2 between two door panels 12 may be 3m, 3.5m, 4m, 5 m.

In this embodiment, when the distance L2 between the two door panels 12 is too large (for example, greater than 5 m), that is, when the width of the channel 13 is too large, the radio frequency signal emitted by the first antenna located in the two door panels 12 cannot cover the whole area of the channel 13, which causes the phenomenon of missing reading of the channel door, and when L2 is too large, the space occupied by the channel door is too large, which causes space waste; when L2 is too small (e.g. less than 3 m), i.e. the width of passage 13 is too small, it is not favorable for the passage of the cargo 3 with a large volume. Therefore, when the distance L2 between two door panels 12 is 3 m-5 m, there is enough space for passing the large-volume goods 3, and the floor space of the access door can be saved.

In a specific embodiment, as shown in fig. 2, a geomagnetic sensor 4 is further disposed inside the door main body 1, and the geomagnetic sensor 4 is configured to trigger the first antenna to read data passing through the radio frequency tag on the cargo 3 inside the door main body 1 when the cargo 3 passes through the inside of the door main body 1.

The geomagnetic sensor 4 can detect weak changes of ferromagnetic objects to the earth magnetic field, has high sensitivity, and can judge whether the trailer loading the goods 3 passes through the passage door or not according to the changes of the earth magnetic field. Geomagnetic sensor 4 does not have a reaction to non-ferromagnetic object, and people can not be sensed by geomagnetic sensor 4 when passing through the access door, so that the access door provided with geomagnetic sensor 4 can realize the purpose of identifying people and vehicles by shunting.

In this embodiment, geomagnetic sensor 4 is used for controlling the opening or closing of the reader-writer in the passage door, and when the trailer loading cargo 3 passes through geomagnetic sensor 4, the reader-writer is triggered to open, and the wireless radio frequency tag on cargo 3 entering the passage door is read and then uploaded to the service background. Opening and closing through setting up geomagnetic sensor 4 control read write line makes the read write line only read the work when there is the trailer to pass through, can avoid the long-time continuous operation of read write line to lead to the burden overweight. In addition, when the reader-writer continuously reads for a long time, the data of the goods 3 can only be uploaded to the service background through timing packaging, and the reader-writer provided with the geomagnetic sensor 4 can realize batch uploading of the data, and respectively uploads the data of the goods 3 on each trailer.

Specifically, as shown in fig. 2, a passage 13 is formed in the door main body 1, the passage 13 has an inlet 131 and an outlet 132, the inlet 131 and the outlet 132 are both provided with geomagnetic sensors 4 along the extending direction of the door panel 12, and the distance L3 between the two geomagnetic sensors 4 is 2.5m to 3 m. For example, the distance L3 between the two geomagnetic sensors 4 may be specifically 2.5m, 2.7m, 2.9m, 3m, or the like.

In this embodiment, the geomagnetic sensor 4 is disposed at the inlet 131 and the outlet 132, and is used for controlling the on and off of the reader/writer, respectively. Two ground magnetic sensor 4 all are located the outside of door plant 12, and when the trailer was about to get into passageway 13, the reader writer opened, can read the data of goods 3 on the trailer, and when the trailer was gone out from passageway 13, the reader writer was closed after uploading data, and the completion was to goods 3's data reading on this trailer. Therefore, the distance L3 between the two geomagnetic sensors 4 should be slightly larger than the length of the channel 13, and the setting requirements of the two geomagnetic sensors 4 can be satisfied when the distance L3 between the two geomagnetic sensors 4 is 2.5m to 3 m.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An access door for bulk reading of data from a radio frequency tag on goods (3), characterized in that the access door comprises:

a door main body (1);

a first antenna located inside the door body (1) for reading data passing a radio frequency tag on goods (3) inside the door body (1);

the second antenna (11) is located outside the door main body (1) and used for reading data of the radio frequency tags on the goods (3) of the temporary storage area (2) located outside the door main body (1).

2. The access door according to claim 1, characterized in that the door body (1) comprises two oppositely arranged door panels (12);

a channel (13) for passing goods (3) with a radio frequency identification tag is formed between the two door panels (12);

the first antenna is disposed within the door panel (12).

3. The access door according to claim 2, characterised in that the second antennas (11) are arranged on the outer side of the two door panels (12), respectively.

4. The access door according to claim 3, characterised in that the channel (13) has an inlet (131) and an outlet (132);

along the extension direction of the door panel (12), the second antennas (11) are respectively positioned on one side of the door panel (12) close to the inlet (131), and/or the second antennas (11) are positioned on one side of the door panel (12) close to the outlet (132).

5. The access door according to claim 2, wherein the door panel (12) includes a mounting portion (121), the mounting portion (121) being a stepped groove formed on the door panel (12);

the installation part (121) is provided with an installation block (121a) protruding towards the outer side of the channel (13) along the thickness direction of the door panel (12), and the second antenna (11) is fixedly connected with the installation block (121 a).

6. The access door according to claim 5, characterised in that the second antenna (11) has a mounting surface (111), the mounting surface (111) having an angle α, 30 ° ≦ α ≦ 60 °, between the extension direction of the door panel (12).

7. The access door according to claim 6, characterized in that two second antennas (11) are arranged on the mounting portion (121) along the height direction of the door panel (12), and the distance L1 between the two second antennas (11) is 0.8 m-1 m.

8. The access door according to any of claims 2-7, characterised in that the distance L2 between two door panels (12) is 3 m-5 m.

9. The access door according to claim 2, characterized in that the door main body (1) is further provided with a geomagnetic sensor (4), and the geomagnetic sensor (4) is used for triggering the first antenna to read data passing through a wireless radio frequency tag on goods (3) in the door main body when the goods (3) pass through the inside of the door main body (1).

10. The access door according to claim 9, characterized in that a channel (13) is formed in the door body (1), the channel (13) having an inlet (131) and an outlet (132);

along the extending direction of door plant (12), import (131) with export (132) all are provided with earth magnetism sensor (4), and two distance L3 between earth magnetism sensor (4) is 2.5m ~ 3 m.