CN217467665U

CN217467665U - Article is discernment and positioner in batches

Info

Publication number: CN217467665U
Application number: CN202221439639.6U
Authority: CN
Inventors: 段文彬; 胡冲; 杨红; 熊勇; 王良前; 关敬涛; 刘波; 戴席锐
Original assignee: Chongqing Microid Technology Co ltd
Current assignee: Chongqing Microid Technology Co ltd
Priority date: 2022-06-09
Filing date: 2022-06-09
Publication date: 2022-09-20
Anticipated expiration: 2032-06-09

Abstract

The utility model provides an article are discerned and positioner in batches, include: the RFID identification antennas are arranged at the article placing positions in a one-to-one correspondence manner; the RFID reading and writing module is used for sending radio frequency signals to the RFID identification antenna and acquiring RFID label information returned by the RFID label on the article; the antenna switching module is used for switching different RFID identification antennas to be communicated with the RFID read-write module; and the control module is used for acquiring the RFID label information acquired by the RFID read-write module. The antenna switching module sequentially switches the RFID identification antenna to be communicated with the RFID reading and writing module, so that the batch identification of the articles is realized, and omission is avoided; the obtained RFID label information corresponds to the article placing positions of the articles one by one through the corresponding relation between the RFID identification antenna and the article placing positions, so that the articles are accurately positioned, and further the effective information tracking of a single article is realized.

Description

Article is discernment and positioner in batches

Technical Field

The utility model relates to a medical treatment field and electron field, concretely relates to article are discerned and positioner in batches.

Background

Chinese patent No. 201810551598.1 in the prior art discloses an intelligent batch specimen or test tube identifier and an identification method, which are used to solve the problems of low efficiency of sample information writing and high error rate in the prior art, and realize the batch (such as 50 or more specimens) quick identification of specimens, but cannot locate the relative position of a single specimen in a batch handover specimen, and cannot perform effective information tracking on the single specimen.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving the technical problem who exists among the prior art, provide an article discernment and positioner in batches, include: the RFID identification antennas are correspondingly arranged at the article placing positions one by one; the RFID reading and writing module is used for sending radio frequency signals to the RFID identification antenna and acquiring RFID label information returned by the RFID label on the article; the antenna switching module is used for switching different RFID identification antennas to be communicated with the RFID reading and writing module; and the control module is connected with the RFID read-write module and is used for acquiring the RFID label information acquired by the RFID read-write module.

The technical scheme is as follows: the obtained RFID label information is in one-to-one correspondence with the RFID identification antennas through the antenna switching module, and the RFID identification antennas are installed on the article placing positions in one-to-one correspondence with each other, so that the obtained RFID label information is in one-to-one correspondence with the article placing positions, the specific placing position of each article can be obtained, and the precise positioning of the articles is realized. The antenna switching module sequentially switches the RFID identification antenna to be communicated with the RFID reading and writing module, so that the label information of the articles at each article placement position can be collected, omission is avoided, batch identification and positioning of the articles are realized, and effective information tracking of a single article is realized; moreover, the RFID label is adopted for storing the article identity information instead of the paper label, so that the problem that the paper label is easy to be polluted can be solved.

Drawings

FIG. 1 is a block diagram of a system for batch identification and location of articles in accordance with a preferred embodiment of the present invention;

fig. 2 is a schematic diagram of the distribution of a plurality of RFID identification antennas according to a preferred embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected" and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection through an intermediate medium, and those skilled in the art may understand the specific meanings of the above terms according to specific situations.

RFID (radio frequency identification ) is an automatic identification technology that uses electromagnetic induction, radio waves, or microwaves to perform non-contact two-way communication to achieve the purpose of identification and exchange data.

The RFID system consists of the following parts: the RFID tag consists of a chip and a tag antenna and is communicated with a reader-writer through an inductive coupling or electromagnetic backscattering principle; a reader-writer is a device for reading/writing label information and is used as a terminal for data acquisition; and the RFID antenna is equipment for providing radio frequency signal space propagation for the RFID label and the reader-writer.

The working principle of the RFID system is as follows: the information to be sent by the reader is coded, loaded on a carrier signal with a certain frequency and sent out through the RFID identification antenna, the electronic tag entering a working area of the reader receives the pulse signal, relevant circuits in the card chip modulate, decode and decrypt the signal, and then command requests, passwords, authorities and the like are judged.

In the transportation and handover process of food, medicine, clinical examination specimens or test tubes and other articles, identity information corresponding to the articles one to one is arranged on each article, the articles in batches are generally transported and handed over together, and batch identification and positioning need to be carried out on the articles in batches so as to realize accurate and effective tracking of the articles.

The utility model discloses an article are discernment and positioner in batches, in a preferred embodiment, as shown in figure 1, the device includes: the RFID identification antennas are arranged at the article placing positions in a one-to-one correspondence manner; the RFID reading and writing module is used for sending radio frequency signals to the RFID identification antenna and acquiring RFID label information returned by the RFID label on the article; the antenna switching module is used for switching different RFID identification antennas to be communicated with the RFID read-write module; and the control module is connected with the RFID read-write module and is used for acquiring the RFID label information acquired by the RFID read-write module.

In this embodiment, the RFID tag information acquired by the RFID read/write module includes the identity information of the article.

In this embodiment, preferably, the article is a blood sample or urine sample or stool sample or brain marrow sample or saliva sample or secretion sample or tissue cell sample for medical examination; alternatively, the article is a test tube or slide carrying a sample, preferably but not limited to blood or urine or feces or sweat or saliva or secretion or animal and plant tissue cells or human tissue cells.

In this embodiment, the antenna switching module includes a first end and a plurality of second ends, the first end can be connected to different second ends, the RFID reading and writing module is sequentially connected to different RFID identification antennas by controlling the antenna switching module, so as to obtain RFID tag information of an article placed in each article placement position, since only one RFID identification antenna is connected each time the RFID tag information is obtained, the RFID tag information corresponds to the RFID identification antennas one by one, and according to the one-to-one correspondence relationship between the article placement position and the RFID identification antenna, the correspondence relationship between the RFID tag information and the article placement position is obtained, and further, the position information of each article is obtained. The RFID identification antennas are connected with the second ends of the antenna switching module in a one-to-one correspondence mode, the first end of the antenna switching module is connected with the radio frequency signal end of the RFID reading and writing module, and the data communication end of the RFID reading and writing module is connected with the data communication end of the control module.

In this embodiment, the operating frequency band of the RFID identification antenna matches the operating frequency band of the RFID tag on the article, and the operating frequency band of the RFID tag of the present device is preferably, but not limited to, a high frequency or ultra high frequency RFID communication band. The RFID identification antenna is preferably, but not limited to, an etched printed antenna or an elongated antenna or a tag-like antenna. The RFID identification antenna is preferably, but not limited to, mounted at the article placement site by means of adhesive or contact connection or snap-fit.

In this embodiment, to simplify the hardware structure, preferably, the antenna switching module is a matrix switch, the matrix switch includes a control end, a first end and a plurality of second ends, the control end of the matrix switch is connected to the antenna control end of the control module, the first end of the matrix switch is connected to the radio frequency signal end of the RFID read/write module, and the plurality of second ends of the matrix switch are respectively connected to the plurality of RFID identification antennas in a one-to-one correspondence manner. The matrix switch is preferably, but not limited to, a U2751A analog matrix switch.

In this embodiment, it is further preferable that the control terminal of the antenna switching module is connected to the antenna control terminal of the control module, and specifically, the control module may be connected to and communicate with the matrix switch through a serial port.

In this embodiment, in order to achieve reliable switching and improve the isolation of each RFID identification antenna signal, the antenna switching module includes a plurality of single-channel independent switches, first ends of the plurality of switches are all connected to the connection end of the RFID read/write module, and second ends of the plurality of switches are respectively connected to the plurality of RFID identification antennas in a one-to-one correspondence manner. The switch may be a manual dial switch. The switch can also be a radio frequency switch, the control end of the radio frequency switch is connected with the antenna control end of the control module, specifically, an I/O pin is allocated to each radio frequency switch, and the control end of the radio frequency switch is connected with one I/O pin of the control module.

In this embodiment, the control module is preferably, but not limited to, a microprocessor such as a 51-chip microcomputer or an ARM. In practical application, the inside program that is provided with of control module, this program execution time control antenna switching module in proper order with the switching-on of different RFID discernment antennas, set up a serial number for every RFID discernment antenna, the serial number of this RFID discernment antenna of RFID label information association that returns to RFID discernment antenna, and then realize the accurate positioning of article, it is required the description, above-mentioned program is not the utility model discloses an in the protection range.

In a preferred embodiment, to simplify the marking and encoding of location information for storage of item placement locations, a plurality of item placement locations are distributed in an array, as shown in FIG. 2.

In one application scenario of the present embodiment, as shown in fig. 2, a11, a12, …, and Anm respectively represent the numbers of RFID identification antennas, T11, T12, …, and Tnm respectively represent items to which RFID tags are attached, and the items are preferably, but not limited to, tube specimens. The antenna switching module controls the RFID identification antennas to identify RFID electronic tag information of corresponding articles one by one from A11 according to the sequence of A11, A12, … and Anm, the RFID reading and writing module marks the RFID tag information identified by each RFID identification antenna with corresponding antenna numbers respectively and uploads the information to the control module, and the control module immediately starts to carry out comprehensive calculation and analysis on data to obtain identity information and relative position information of each article. In a specific implementation, a11, a12, … and A1m may be used as one group, a21 and a22 … A2m may be used as another group, and so on, and the n groups of antennas shown in fig. 2 may share one group of antenna switching control signals, so as to improve the overall recognition efficiency.

In a preferred embodiment, in order to facilitate the placing of the articles, article-carrying carriers are provided on the article-placing locations for storing the articles. The article carrying carrier is preferably, but not limited to, a test tube rack or a test tube holder or a blind hole.

In a preferred embodiment, in order to facilitate placing of the articles and batch handling of the articles, the system further comprises a support, wherein a plurality of article carrying carriers are arranged on the support, each article carrying carrier is used for placing one article, and each article carrying carrier is provided with one RFID identification antenna.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An article batch identification and positioning device, comprising:

the RFID identification antennas are arranged at the article placing positions in a one-to-one correspondence manner;

the RFID reading and writing module is used for sending radio frequency signals to the RFID identification antenna and acquiring RFID label information returned by the RFID label on the article;

the antenna switching module is used for switching different RFID identification antennas to be communicated with the RFID read-write module;

and the control module is connected with the RFID read-write module and is used for acquiring the RFID label information acquired by the RFID read-write module.

2. The batch identification and positioning device of articles of claim 1, wherein the control terminal of the antenna switching module is connected to the antenna control terminal of the control module.

3. The batch item identification and positioning device according to claim 1 or 2, wherein the antenna switching module is a matrix switch, a control end of the matrix switch is connected with an antenna control end of the control module, a first end of the matrix switch is connected with a radio frequency signal end of the RFID read-write module, and a plurality of second ends of the matrix switch are respectively connected with the plurality of RFID identification antennas in a one-to-one correspondence manner.

4. The batch item identification and positioning device according to claim 1 or 2, wherein the antenna switching module comprises a plurality of switches with a single channel, first ends of the switches are all connected with the radio frequency signal end of the RFID read-write module, and second ends of the switches are respectively connected with the RFID identification antennas in a one-to-one correspondence manner.

5. The batch article identification and location device of claim 1 or 2, wherein the plurality of article placement locations are distributed in an array.

6. The device for batch identification and location of articles as claimed in claim 5, wherein the article placement location is provided with an article carrier for storing the articles.

7. The batch item identification and locating device of claim 5, further comprising a rack on which a plurality of item carrying carriers are disposed, one item carrying carrier holding one item and mounting one RFID identification antenna.

8. The device for batch identification and location of articles of claim 3 wherein the plurality of article placement locations are distributed in an array.

9. The device for batch identification and location of items of claim 4 wherein the plurality of item receiving locations are arranged in an array.

10. The batch identification and positioning device for objects according to claim 8 or 9, wherein the object placement site is provided with an object carrier for storing the objects.