CN116167402A - RFID read-write device, deployment method and RFID read-write system - Google Patents

Abstract

The disclosure provides an RFID read-write device, a deployment method and an RFID read-write system, and relates to the technical field of communication. Wherein, RFID read write line includes: the RFID reader-writer, the RFID antenna and the rotatable cradle head are arranged on the rotatable cradle head, and the signal direction of the RFID antenna is adjusted through rotation, so that the communication range of each RFID tag is expanded between the RFID reader-writer and the machine room for dispersing and disposing, and the communication purpose of satisfying a large number of RFID tags dispersed and disposed in the machine room by the minimum number of RFID reader-writer can be achieved to a certain extent.

Description

RFID read-write device, deployment method and RFID read-write system

technical field

The present disclosure relates to the technical field of communication, and in particular to an RFID reading and writing device, a deployment method, and an RFID reading and writing system.

Background technique

RFID (Radio Frequency Identification, radio frequency identification) is a kind of automatic identification technology. It performs non-contact two-way data communication through radio frequency, and uses radio frequency to read and write RFID tags of recording media, so as to achieve the purpose of identification and data exchange. .

At present, in the process of measuring space temperature, humidity or other data by RFID readers in small and medium-sized communication equipment rooms, the radio frequency signals emitted by multiple RFID antennas in the same area have the problem of overlapping and wasting each other, and one RFID reader Due to the limitation of the radio emission angle of the RFID antenna, it cannot effectively communicate with the RFID tags distributed up, down, left, and right. And deploying a large number of antenna devices, on the one hand, requires a large capital investment. On the other hand, the number of power cables and communication cables is large, and the maintenance workload in the future is also large. Therefore, the minimum number of RFID antenna devices is used to meet the large number of scattered deployments in the computer room. The communication requirements of RFID tags is an urgent problem to be solved.

It should be noted that the information disclosed in the above background section is only for enhancing the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to those of ordinary skill in the art.

Contents of the invention

The present disclosure provides an RFID reader-writer, a deployment method, and an RFID read-write system, at least to a certain extent, overcoming the problems of mutual overlapping and waste of radio frequency signals emitted by RFID antennas in the related art.

Other features and advantages of the present disclosure will become apparent from the following detailed description, or in part, be learned by practice of the present disclosure.

According to one aspect of the present disclosure, an RFID reading and writing device is provided, including: an RFID reader, an RFID antenna, and a rotatable pan-tilt;

Among them, the RFID reader is used to send radio frequency signals to one or more RFID tags through the RFID antenna to read and write the data in each RFID tag;

The RFID reader and RFID antenna are arranged on the rotatable platform, and the signal direction of the RFID antenna can be adjusted by rotating the rotatable platform.

In some embodiments, the rotatable pan/tilt includes: a horizontal rotation mechanism and/or a vertical rotation mechanism;

Wherein, the horizontal rotation mechanism is used for the rotatable platform to rotate in the horizontal direction; the vertical rotation mechanism is used for the rotatable platform to rotate in the vertical direction.

In some embodiments, the rotatable pan/tilt further includes: a motor;

Wherein, the motor is used to drive the horizontal rotation mechanism and/or the vertical rotation mechanism to rotate.

In some embodiments, the motor communicates with the industrial controller, and is used to drive the horizontal rotation mechanism and/or the vertical rotation mechanism to rotate according to the control instructions of the industrial controller.

In some embodiments, the RFID tag is an RFID temperature tag for collecting temperature data.

According to another aspect of the present disclosure, there is also provided a deployment method of an RFID read-write device, which is applied to any of the above-mentioned RFID read-write devices, and the method includes:

Write the tag information of the target RFID tag into multiple RFID read-write devices within a preset distance from the target RFID tag, wherein the target RFID tag is any deployed RFID tag;

Obtain the corresponding signal strength when each RFID read-write device reads and writes data to the target RFID tag;

According to the signal strength corresponding to each RFID reading and writing device when reading and writing data to the target RFID tag, select the target RFID reading and writing device whose signal strength meets the preset condition from a plurality of RFID reading and writing devices;

Bind the target RFID read-write device with the target RFID tag.

In some embodiments, a deployment method of an RFID read-write device is provided, which may also include: by rotating the rotatable pan/tilt of each RFID read-write device, to obtain each RFID read-write device from different angles to the target The maximum signal strength corresponding to the RFID tag reading and writing data.

According to another aspect of the present disclosure, there is also provided an RFID reading and writing system, which includes: an RFID tag and any one of the above RFID reading and writing devices.

In some embodiments, the RFID tag is disposed on a tag base, and the tag base is a polygonal prism or a polygonal truss.

In some embodiments, the above label base adopts a hollow structure.

In the RFID reading and writing device, deployment method and RFID reading and writing system provided in the embodiments of the present disclosure, the RFID reading and writing device and the RFID antenna are arranged on the rotatable platform, and the signal direction of the RFID antenna can be adjusted by rotating, so that the RFID reader can be expanded. The communication range between the reader and each RFID tag scattered in the computer room can reduce the number of deployed RFID reading and writing devices and make the communication between the RFID tag and the RFID reader more reliable.

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 present disclosure.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description serve to explain the principles of the disclosure. Apparently, the drawings in the following description are only some embodiments of the present disclosure, and those skilled in the art can obtain other drawings according to these drawings without creative efforts.

FIG. 1 shows a schematic diagram of an application scenario in an embodiment of the present disclosure;

Fig. 2 shows a schematic diagram of functional modules of an RFID reading and writing device in an embodiment of the present disclosure;

Fig. 3 shows a schematic diagram of the work of the RFID reading and writing device in the embodiment of the present disclosure;

Fig. 4 shows another working schematic diagram of the RFID reading and writing device in the embodiment of the present disclosure;

Fig. 5 shows a schematic diagram of a specific device for a rotatable pan-tilt in an embodiment of the present disclosure;

Fig. 6 shows a schematic diagram of an RFID reading and writing device in an embodiment of the present disclosure;

FIG. 7 shows a schematic diagram of another RFID reading and writing device in an embodiment of the present disclosure;

FIG. 8 shows a flow chart of a method for deploying an RFID reading and writing device in an embodiment of the present disclosure;

Fig. 9 shows a schematic diagram of an RFID reading and writing system in an embodiment of the present disclosure;

Fig. 10 shows a schematic diagram of a label base in an embodiment of the present disclosure;

Fig. 11 shows a schematic diagram of another label base in an embodiment of the present disclosure;

Fig. 12 shows a schematic diagram of application of a label base in a computer room in an embodiment of the present disclosure.

Detailed ways

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus repeated descriptions thereof will be omitted. Some of the block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software, or in one or more hardware modules or integrated circuits, or in different network and/or processor means and/or microcontroller means.

For ease of understanding, before introducing the embodiments of the present disclosure, several nouns involved in the embodiments of the present disclosure are explained as follows:

RFID: Radio Frequency Identification, that is, radio frequency identification technology, is a kind of automatic identification technology. It performs non-contact two-way data communication through radio frequency, and uses radio frequency to read and write recording media, so as to achieve the purpose of identification and data exchange. .

The specific implementation manners of the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings.

Fig. 1 shows a schematic diagram of an application scenario in which an embodiment of the present disclosure can be applied. The data is detected in real time. After receiving temperature, humidity or other data, the RFID tag 100 can regularly send data to the long-distance RFID reader 200. These data are transmitted to the background in real time for monitoring. In case of abnormal data, various forms of alarm Notify the corresponding personnel or directly make corresponding intelligent adjustments to the computer room to keep the temperature, humidity or other data in the computer room relatively stable, achieve the purpose of no one or few people on duty, and provide a strong guarantee for the efficient management and safe operation of the computer room.

However, radio frequency signals transmitted by multiple RFID readers 200 through antennas in the same area may overlap and be wasted. In order to achieve the highest utilization of antenna signals in the same space. The embodiment of the present disclosure intends to make the following improvements to expand the normal communication coverage of the RFID tags 100 scattered in various places in the computer room, so as to reduce the number of RFID antennas.

Fig. 2 shows a schematic diagram of functional modules mainly composed of an RFID reading and writing device 300 provided by an embodiment of the present disclosure.

As shown in FIG. 2 , the RFID reader-writer device 300 includes an RFID reader-writer 200 , an RFID antenna 201 and a rotatable pan-tilt 301 . Among them, the RFID reader is used to send radio frequency signals to one or more RFID tags through the RFID antenna to read and write the data in each RFID tag; the RFID reader and RFID antenna are set on the rotatable platform, which can be rotated by rotation The gimbal can adjust the signal direction of the RFID antenna.

Wherein, the RFID reader-writer 200 is used to read the data information of the RFID tag. Specifically, the RFID reader 200 is bound with an RFID antenna 201, and when reading data, the RFID reader 200 sends a radio frequency signal to one or more RFID tags through the RFID antenna 201, so as to read and write data in each RFID tag.

The reading range of an RFID reader-writer 200 is limited, and the RFID reader-writer 200 can only read the data information of the RFID tags arranged within the angle range within a limited angle. The device 200 can read the RFID tags arranged in more places in the computer room, and can expand the angle at which the RFID antenna 201 sends radio frequency signals. Specifically, the RFID reader 200 and the RFID antenna 201 are arranged on a rotatable platform 301, and by rotating the rotatable platform 301, the RFID antenna 201 is driven to rotate, thereby adjusting the signal transmission angle of the RFID antenna 201 to In this way, the reading range of the RFID reader 200 is expanded.

As shown in FIG. 3 and FIG. 4 , multiple RFID tags 100 and one RFID read-write device 300 are arranged in the computer room 10 . As shown in Figure 3, when the RFID read-write device 300 is located in the original position and does not rotate, it can only read the data information of one RFID tag 100; as shown in Figure 4, when the RFID read-write device 300 rotates, it can The data information of multiple RFID tags 100 arranged in the computer room 10 are all read, so as to meet the communication requirements of a large number of scattered RFID tags deployed in the computer room with the least number of RFID read-write devices.

In an embodiment of the present disclosure, the above-mentioned rotatable pan/tilt of the RFID reading/writing device may further include: a horizontal rotation mechanism and/or a vertical rotation mechanism. Wherein, the horizontal rotation mechanism is used for the rotatable platform to rotate in the horizontal direction; the vertical rotation mechanism is used for the rotatable platform to rotate in the vertical direction.

It should be noted that the RFID read-write device and the RFID tag are often not at the same height in the computer room. For a good communication effect, sometimes it is necessary to adjust the angle in the vertical direction.

The following will take a rotating platform including a horizontal rotating mechanism and a vertical rotating mechanism as an example to describe embodiments of the present disclosure in detail. In practice, the rotatable platform includes at least one of the horizontal rotating mechanism and the vertical rotating mechanism.

Fig. 5 shows a specific device schematic diagram of the rotatable pan-tilt in the RFID reading and writing device in the embodiment of the present disclosure. As shown in FIG. 5 , the rotatable pan/tilt 301 includes a pan/tilt base 3011 , a horizontal rotation mechanism 3012 , a vertical rotation mechanism 3013 , and a vertical realization component 3014 of the vertical rotation mechanism 3013 .

Wherein, the horizontal rotation mechanism is used for the rotation of the rotatable platform 301 in the horizontal direction; the vertical rotation mechanism 3013 is used for the rotation of the rotatable platform 301 in the vertical direction.

Specifically, the pan-tilt base 3011 is fixedly placed in any position in the computer room where an RFID reading and writing device needs to be installed, and the horizontal rotation mechanism 3012 is rotated and installed on the pan-tilt base 3011, and the horizontal rotation mechanism 3012 can be mounted on the pan-tilt base 3011 by 360° Horizontal rotation, generally, the horizontal rotation mechanism 3012 is set in a cylindrical structure, and the rotation axis is the axis of the cylindrical structure. When the horizontal rotation mechanism 3012 is set in other geometry, similarly, the rotation axis is the axis of the geometry, namely the The geometry is perpendicular to the centerline of the ground. The rotation of the horizontal rotation mechanism 3012 along the axis will drive the RFID reader and RFID antenna to rotate in the horizontal direction, which can expand the communication angle range of the RFID antenna in the horizontal direction.

The vertical rotation mechanism 3013 is used for the rotation of the rotatable platform 3013 in the vertical direction. Specifically, two vertical realization parts 3014 are set on the horizontal rotation mechanism 3012, and a rotation hole 3015 is opened on each vertical realization part 3014. A rotating shaft is placed in the rotating hole 3015, and the rotating shaft drives the vertical rotating mechanism 3013 to rotate, thereby realizing the rotation of the rotatable platform 301 in the vertical direction. It should be noted that the rotating shaft may be an integral shaft on the vertical rotating mechanism 3013, or other connecting parts, such as nails. For those skilled in the art, as long as the rotating shaft can be rotated, the specific implementation is not limited in any way.

In some embodiments of the present disclosure, in consideration of the anti-dumping performance of the rotatable pan/tilt 301, the pan/tilt base 3011 needs to use relatively high-quality materials, such as iron, steel and other materials, specifically, the pan/tilt base 3011 The weight should be greater than the total weight of the above-mentioned horizontal rotation mechanism 3012, vertical realization part 3014, vertical rotation mechanism 3013, RFID reader and RFID antenna, so as to reduce the center of gravity of the entire RFID reading and writing device and avoid the RFID reading and writing device. dumping.

In addition, it should be noted that the above example is a rotatable pan-tilt that includes both a horizontal rotation mechanism and a vertical rotation mechanism. Specifically, in the actual application process, corresponding adjustments can be made according to the actual situation, and finally the RFID antenna and the RFID reader are installed. On the rotatable pan-tilt, the rotatable pan-tilt can be installed either fixedly or movable, which is not limited to the embodiments of the present disclosure.

FIG. 6 shows the RFID read-write device using the above-mentioned rotatable pan-tilt. As shown in FIG.

Specifically, as shown in FIG. 5 and FIG. 6, the RFID antenna 201 is connected to the RFID reader-writer 200, and the RFID reader-writer 200 is placed on the highest carrier of the rotatable platform 301. It should be noted that the highest carrier The stage may be a vertical rotation mechanism 3013 or a horizontal rotation mechanism 3012 .

When the rotatable pan-tilt 301 has only the horizontal rotation mechanism 3012, the RFID reader 200 is placed on the horizontal rotation mechanism 3012, and the rotation of the horizontal rotation mechanism 3012 drives the RFID reader-writer 200 and the RFID antenna 201 to rotate; when the rotatable pan-tilt 301 has only When the vertical rotation mechanism 3013, the RFID reader 200 is placed on the vertical rotation mechanism 3013, and the rotation of the vertical rotation mechanism 3013 drives the RFID reader 200 and the RFID antenna 201 to rotate; when the rotatable platform 301 includes the horizontal rotation mechanism 3012 and the vertical When the rotation mechanism 3013 is used, the RFID reader 200 is placed on the vertical rotation mechanism 3013, that is, the highest carrier, at this time, the horizontal rotation mechanism 3012 drives the vertical realization component 3014 and the vertical rotation mechanism 3013 to rotate in the horizontal direction, Then drive the RFID reader 200 and the RFID antenna 201 to move in the horizontal direction, and the vertical rotation mechanism 3013 drives the RFID reader 200 and the RFID antenna 201 to rotate in the vertical direction. and a co-rotation in the vertical direction.

In some embodiments of the present disclosure, the RFID antenna can be attached to one side of the RFID reader. It can be installed on multiple sides of the RFID reader 200, and the RFID antenna 201 is installed on multiple sides, so that the RFID tags deployed in more angle ranges can achieve better communication effects.

In some embodiments of the present disclosure, the above-mentioned rotatable pan/tilt further includes a motor.

The horizontal rotation mechanism and vertical rotation mechanism of the rotatable head are respectively driven by motors. It should be noted that one motor controls one of the horizontal rotation mechanism and the vertical rotation mechanism. When the rotatable pan/tilt includes both the horizontal rotation mechanism and the vertical rotation mechanism, a total of two motors are needed, and the first motor drives the horizontal rotation mechanism to do horizontal rotation. Rotation movement, the second motor drives the vertical rotation mechanism to perform vertical rotation movement.

In addition, it should be noted that the motor may be a stepper motor or other motors, and the motor may be selected according to the actual device to be controlled. The embodiment of the present disclosure takes a stepping motor as an example, the stepping motor is drivingly connected with the horizontal rotation mechanism and/or the vertical rotation mechanism, and the number of rotation steps of the stepping motor corresponds to the rotation angle of the horizontal rotation mechanism and/or the vertical rotation mechanism . According to the rotation angles of the horizontal rotation mechanism and the vertical rotation mechanism, it is driven by a stepping motor.

In some embodiments of the present disclosure, the above-mentioned motor communicates with the industrial controller, and the rotation of the motor is controlled according to the control instructions of the industrial controller, thereby realizing the rotation action of the horizontal rotation mechanism and/or the vertical rotation mechanism of the rotatable pan/tilt.

Specifically, the industrial controller can be controlled by a programmable logic controller PLC or a single-chip microcomputer. The speed of the motor, the step size of the angular rotation, and the range of the rotation angle are determined by the internal program of the industrial controller, and the internal program can be customized by different users. design.

In some embodiments of the present disclosure, the RFID tag of the data information read by the above-mentioned RFID reading and writing device is an RFID temperature tag, and the RFID temperature tag is used to collect temperature data in the computer room. Preferably, the RFID temperature tag is a passive tag , can be attached to any position in the computer room to collect temperature data information at each position.

Specifically, multiple RFID temperature tags are attached to multiple locations in the computer room, and the RFID temperature tags collect temperature data information at each location. Read the temperature data information collected by the RFID temperature tag through the RFID antenna, and realize the reading of the temperature data in the computer room.

According to another aspect of the present disclosure, a method for deploying an RFID reader-writer is also provided, which is applied to any one of the above-mentioned RFID reader-writers or other RFID reader-writers.

Fig. 8 shows a flow chart that can be applied to the deployment method of the RFID reading and writing device in the embodiment of the present disclosure. As shown in Fig. 8, the deployment method of the RFID reading and writing device provided in the embodiment of the present disclosure includes the following steps:

S802. Write the tag information of the target RFID tag into multiple RFID read-write devices within a preset distance from the target RFID tag, wherein the target RFID tag is any deployed RFID tag.

It should be noted that the above tag information of the RFID tag refers to the inherent information of the RFID tag, such as tag number, tag address, etc., not the data information such as temperature or humidity collected by the RFID tag. Write the tag information of the target RFID tag into multiple RFID read-write devices, that is, the target of the multiple RFID read-write devices is to read the target RFID tag. The preset distance range is a preset range within which the target RFID tag can be read in the computer room. And it should be understood that the target RFID tag is any RFID tag that has been deployed.

S804. Obtain the corresponding signal strengths when each RFID read-write device reads and writes data to the target RFID tag.

It should be noted that the above-mentioned deployed target RFID tags will be read by multiple RFID read-write devices within the preset range, due to the different reading distances and the distance between the antenna and the target RFID tag in the RFID read-write device The front area is different, and the signal strength of each RFID read-write device when reading data information is also different. In order to deploy the RFID read-write device at the position with the strongest signal or select a suitable signal position, it is necessary to obtain each RFID read-write device. The corresponding signal strength when the writing device reads and writes data to the target RFID tag.

S806. According to the signal strength corresponding to each RFID reading and writing device when reading and writing data to the target RFID tag, select the target RFID reading and writing device whose signal strength meets the preset condition from the multiple RFID reading and writing devices.

It should be noted that each RFID read-write device corresponds to a signal strength when reading and writing data to the target RFID tag. After obtaining the signal strength corresponding to each RFID read-write device, select the RFID reader that meets the preset conditions The writing device is used as the target RFID reading and writing device to be bound to the target RFID tag. In one embodiment, the preset condition may be to select the RFID read/write device with the strongest signal.

S808. Bind the target RFID reading and writing device with the target RFID tag.

Among them, the target RFID read-write device is an RFID read-write device selected from a plurality of RFID read-write devices that meets the preset conditions, and the target RFID read-write device is bound to the target RFID tag, that is, the target RFID tag The data information of the target RFID tag can only be read by the target RFID read-write device, and other RFID read-write devices cannot read the data information of the target RFID tag.

In some embodiments of the present disclosure, the signal strength corresponding to each RFID reading and writing device obtained above when reading and writing data to the target RFID tag includes: by rotating the rotatable platform of each RFID reading and writing device to obtain the The corresponding maximum signal strength when the reading and writing device reads and writes data to the target RFID tag at different angles.

It should be understood that each RFID read-write device is an RFID read-write device according to an embodiment of the present invention. When reading data, the rotatable platform of the RFID read-write device performs a full-angle action, and the full angle is horizontal. The rotation angle of the rotation mechanism and the rotation angle of the vertical rotation mechanism are combined to read the data information of the RFID tag, and record the signal strength and the rotation angle information of the rotatable pan/tilt when the signal is the strongest.

Based on the same inventive concept, an embodiment of the present disclosure also provides an RFID reading and writing system, the RFID reading and writing system includes an RFID tag and any one of the above-mentioned RFID reading and writing devices.

FIG. 9 shows a schematic diagram of an RFID reading and writing system provided in an embodiment of the present disclosure. As shown in FIG. 9 , the RFID reading and writing system includes an RFID reading and writing device 300 and an RFID tag 100 .

Wherein, the RFID read-write device 300 includes: an RFID reader-writer 200 , an RFID antenna 201 and a rotatable pan-tilt 301 . The RFID reader 200 and the RFID antenna 201 are arranged on the rotatable platform 301 , and the signal direction of the RFID antenna can be adjusted by rotating the rotatable platform 301 . The RFID reader 200 is used to send radio frequency signals to one or more RFID tags 100 through the RFID antenna 201 to read and write data information in each RFID tag 100 .

It should be noted that the RFID reading and writing system of the embodiment of the present disclosure can apply the above-mentioned deployment method of the RFID device. An RFID reading and writing system should include at least one RFID reading and writing device 300 and an RFID tag 100. The RFID reading and writing device 300 communicates with the RFID tag 100 to collect temperature, humidity or other data at the place where the RFID tag 100 is placed in the space. information.

In some embodiments of the present disclosure, the above-mentioned RFID tag can be set on a tag base, and the tag base is a polygonal prism or a polygonal truss.

Since the shape of the RFID tag is a rectangular sheet or a circular sheet, it can only be installed close to the horizontal plane or vertical plane when placed in the computer room. At this time, the RFID tag receives the electromagnetic wave intensity emitted by the RFID antenna is weak. In order to meet the needs of different oblique angle scenes, the label base of the embodiment of the present disclosure is designed.

The exemplary implementation manner will be described in detail below in conjunction with the accompanying drawings and embodiments.

Figure 10 and Figure 11 show schematic diagrams of label bases in embodiments of the present disclosure, which are respectively a hexagonal prism label base and a heptagonal platform label base, combined with the application schematic diagram of the machine room label base shown in Figure 12, an exemplary Take the hexagonal prism label base 400 as an example. The embodiment of the present disclosure does not make any setting on the shape of the polygonal prism or polygonal truss, which can be regular polygonal prism, regular polygonal prism, or irregular polygonal prism or irregular polygonal truss, which can be set according to the actual situation. Certainly. As shown in Figure 12, one side of the hexagonal prism label base 400 is attached to a horizontal plane such as a ceiling 11 and a vertical plane such as a wall 12, then the other side of the hexagonal prism label base 400 can be attached with an RFID tag 100, Since there is a certain oblique angle between the other sides of the hexagonal column tag base 400 and the ground or wall, when the RFID read-write device 300 is rotating, the area facing the RFID antenna of the RFID read-write device 300 and the RFID tag 100 will be larger. Larger, to achieve better communication effect.

Similarly, when the label base 400 is set as a heptagonal platform as shown in Figure 11, RFID tags can be attached to each side of the heptagonal platform. More abundant, there will be more oblique angle scenes that meet the needs, so that the communication between the RFID reading and writing device and the RFID tag can achieve better results.

When the label base is fixed to the wall or other positions, it can be directly bonded and fixed, or it can be fixed with a simple buckle, and the buckle can be fixed to the wall or other positions by screws or bonding.

The place where the RFID tag is attached should be made of metal to reflect the signal. At present, when RFID tags are used in the computer room, a small piece of metal needs to be pasted behind the RFID tag, which increases the installation workload and is not conducive to future maintenance. Therefore, the embodiments of the present disclosure will The above label base is designed to be made of metal. The label base has multiple planes and multiple angles, can adapt to the needs of scenes with different oblique angles, and is good for signal reflection.

In some embodiments of the present disclosure, the above label base may adopt a hollow structure. Since the tag base is made of metal and the volume of the tag base is much larger than that of the RFID tag, the weight is heavier, which is not conducive to fixing and bonding on the wall. Therefore, the embodiment of the present disclosure thinks that the tag base adopts a hollow structure design to reduce the weight of the base , for long-term bonding.

Other embodiments of the present disclosure will be readily apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. The present disclosure is intended to cover any modification, use or adaptation of the present disclosure. These modifications, uses or adaptations follow the general principles of the present disclosure and include common knowledge or conventional technical means in the technical field not disclosed in the present disclosure. . The specification and examples are to be considered exemplary only, with the true scope and spirit of the disclosure indicated by the appended claims.

Claims (10)

1. A radio frequency identification RFID read-write device, comprising: an RFID reader, an RFID antenna and a rotatable cradle head;

the RFID reader is used for transmitting radio frequency signals to one or more RFID tags through the RFID antenna so as to read and write data in each RFID tag;

the RFID reader-writer and the RFID antenna are arranged on the rotatable cradle head, and the signal direction of the RFID antenna can be adjusted by rotating the rotatable cradle head.

2. The RFID read-write device according to claim 1, wherein the rotatable head comprises: a horizontal rotation mechanism and/or a vertical rotation mechanism;

the horizontal rotating mechanism is used for rotating the rotatable cradle head in the horizontal direction; the vertical rotation mechanism is used for rotating the rotatable cradle head in a vertical direction.

3. The RFID read-write device according to claim 2, wherein the rotatable head further comprises: a motor;

wherein the motor is used for driving the horizontal rotating mechanism and/or the vertical rotating mechanism to rotate.

4. The RFID read-write device according to claim 3, wherein the motor is in communication with an industrial controller for driving the horizontal rotation mechanism and/or the vertical rotation mechanism to rotate according to a control instruction of the industrial controller.

5. The RFID read-write device according to claim 1, wherein the RFID tag is an RFID temperature tag for collecting temperature data.

6. A deployment method of an RFID read-write device, applied to the RFID read-write device of any one of claims 1 to 5, the method comprising:

writing tag information of a target RFID tag into a plurality of RFID read-write devices within a preset distance range from the target RFID tag, wherein the target RFID tag is any deployed RFID tag;

acquiring corresponding signal strength when each RFID read-write device reads and writes data to the target RFID tag;

according to the corresponding signal intensity when each RFID read-write device reads and writes data to the target RFID tag, selecting the target RFID read-write device with the signal intensity meeting the preset condition from the plurality of RFID read-write devices;

and binding the target RFID read-write device with the target RFID tag.

7. The method for deploying an RFID reader of claim 6, wherein obtaining the signal strength corresponding to each RFID reader when reading and writing data to the target RFID tag comprises:

and rotating the rotatable cradle head of each RFID read-write device to obtain the corresponding maximum signal strength when each RFID read-write device reads and writes data to the target RFID tag under different angles.

8. An RFID read-write system, characterized in that the RFID read-write system comprises: an RFID tag and an RFID read-write device according to any one of claims 1 to 7.

9. The RFID read-write system according to claim 8, wherein the RFID tag is disposed on a tag base, the tag base being a polygonal prism or a polygonal mesa.

10. The RFID read-write system according to claim 9, wherein the tag base is of hollow construction.

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