WO2016078403A1

WO2016078403A1 - Rfid reader system and rfid reader module

Info

Publication number: WO2016078403A1
Application number: PCT/CN2015/081604
Authority: WO
Inventors: 田艺儿
Original assignee: 田艺儿
Priority date: 2014-11-21
Filing date: 2015-06-17
Publication date: 2016-05-26
Also published as: CN204256758U

Abstract

An RFID reader system and an RFID reader module (100), comprising a housing (10) and a circuit board (14) located within the housing (10), the housing (10) being in the shape of a long strip, a set of slots (120) being arranged on at least one wall surface of four wall surfaces of the housing (10) along the length direction of the housing (10) according to set intervals, each slot within the set of slots (120) being respectively used for connecting a card antenna (200). The long strip-shaped RFID reader module (100) and the card antennae (200) which may be plugged thereto are suitable for on-site assembly, and positioning and monitoring may be performed on a device within a server cabinet.

Description

RFID reader system and RFID reader module

Technical field

The utility model relates to the field of radio frequency identification, in particular to an RFID reader/writer system and an RFID reader module.

Background technique

In the prior art, the RFID radio frequency identification system usually consists of a reader/writer and an electronic tag. The reader/writer is also called a reader and an interrogator, and the electronic tag is also called a transponder. Among them, the reader and the electronic tag realize the spatial propagation of the radio frequency signal and establish a wireless communication connection through the antenna.

In the commonly used HF radio frequency identification application, the antenna of the reader/writer is fixed inside the reader, however, in the process of controlling the server group in the cabinet, the inventors have found that when the antenna and the reader are detachable, read The writer can expand other functions based on the conventional functions, and can obtain functions such as position positioning and anti-theft monitoring of the electronic tag.

Utility model content

The object of the present invention is to provide an RFID reader module suitable for use in a work site and a card antenna. It is also an object of the present invention to provide an RFID reader/writer system using the RFID reader module.

To this end, an aspect of the present invention provides an RFID reader module, including a housing and a circuit board located in the housing, wherein the housing has an elongated shape and at least one of surrounding wall surfaces of the housing A set of slots are arranged on the wall along the length of the housing at predetermined intervals, and each slot in the set of slots is used to connect a card antenna.

Further, a front panel and a side surface of the housing are respectively provided with a set of slots. As such, the card antenna has two alternative mounting postures, making the application placement of the RFID reader module an additional option.

Further, at least one end of the housing in the longitudinal direction is provided with a docking structure for docking with an adjacent RFID reader module. In this way, the length of the RFID reader module can be expanded.

Further, the docking structure includes a USB socket and a card slot, or includes a USB plug and a post. By docking such a docking structure, the connection is reliable and no external auxiliary connecting parts are required.

Further, the opposite side walls of the surrounding wall surface of the casing are provided with mounting sliding grooves extending along the longitudinal direction of the casing. In this way, the RFID reader module can be slid as a whole, and the alignment adjustment with the monitored object is very convenient.

Further, the housing includes a profile body and a plug located at both ends of the profile body. In this way, the structure is simple and compact.

Further, the wall surface of the casing is provided with a light-transmitting plate, and the circuit board in the casing is provided with a status indicator light correspondingly arranged one by one with the slot, and the status indicator light faces the light-transmitting plate. In this way, it is convenient to confirm the working state of the card antenna.

Further, the slots on the housing are arranged on the housing in a one-to-one correspondence with the mounting U positions of the server cabinet. In this way, it is convenient to locate and monitor the equipment in the server cabinet.

According to another aspect of the present invention, an RFID reader/writer system is provided, comprising: an RFID reader module, or two or more docked together in the length direction The RFID reader module and the plurality of card antennas respectively inserted into the slots of the RFID reader module, wherein the RFID reader module is an RFID reader module according to the above description.

Further, the card antenna includes: a main body portion and a plug, the main body portion has a hollowed out area, and is provided with an induction coil surrounding the hollowed out area, and the plug is provided with an external terminal electrically connected to the induction coil, wherein the external terminal and the RFID reader/writer The socket on the circuit board of the module is electrically connected, and the hooks on the two sides of the plug are engaged with the slot.

The utility model is suitable for being assembled in the field by setting a long RFID-shaped RFID reader module and a pluggable card antenna, and can be used for positioning and monitoring equipment in the server cabinet.

In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages.

The invention will now be described in further detail with reference to the drawings.

DRAWINGS

The accompanying drawings, which are incorporated in the claims of the claims

In the drawing:

1 is a schematic structural view of an RFID identification system according to the present invention;

2 is a schematic diagram of a portion of an end portion of an RFID reader module of the RFID identification system according to the present invention;

3 is a diagram of an RFID reader module of an RFID identification system in accordance with the present invention Schematic diagram of the internal structure of an embodiment;

4 is a schematic diagram showing the internal structure of a second embodiment of an RFID reader module of the RFID identification system according to the present invention;

5 is a schematic structural view of a card antenna of the RFID identification system of the present invention;

6 is a schematic diagram of a combination of an RFID reader module and a card antenna of an RFID identification system in accordance with the present invention.

Description of the reference signs:

100, RFID reader module; 200, card antenna; 110, the first group of slots; 120, the second group of slots; 130, light transmissive plate; 140, mounting guide; 150, docking structure; 160, status indication Lamp; 10, housing; 11, profile body; 12, first plug; 13, second plug; 14, circuit board; 151, card slot; 152, USB socket; 153, USB plug; 154, post 10a, side; 10b, front; 21, main body; 22, plug; 23, induction coil; 24, external terminal; 25, hook; 26, hollowed out area.

detailed description

It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the drawings in conjunction with the embodiments.

1 is a schematic structural view of an RFID identification system according to the present invention, and FIG. 2 is a schematic diagram of a portion of an RFID reader module of an RFID identification system according to the present invention. Referring to FIG. 1 and FIG. The reader system includes an RFID reader module 100 and a plurality of card antennas 200. The RFID reader module 100 is provided with a set of slots 120, and the plurality of card antennas 200 are correspondingly plugged into a set of slots 120.

Wherein, a set of slots 120 are arranged along the length of the RFID reader module according to a set spacing, such that each slot has a determined physical position, and the electronic tag detected by the card antenna on each slot can be associated with the physical The location is associated to have a coarse positioning effect on the device to which the electronic tag is associated, the coarse positioning being at least useful for monitoring whether the device is moving.

In the present invention, the RFID reader system is also referred to as a radio frequency monitoring scale (RFID monitoring scale).

A typical application of the RFID reader system is to monitor and locate the devices in the server cabinet. Each card antenna is used to detect whether there is an electronic tag on the device in the corresponding U-position in the server cabinet.

In the process of implementing this module, the inventor noticed that the heights of the existing server cabinets are different, mainly reflected in the number of U-mounts installed, usually between 14U and 42U, and 1U is 44.45mm. In response to this situation, in the present invention, the RFID reader system includes a plurality of RFID reader modules. In an application example of a 42U cabinet, the RFID reader system includes three RFID reader modules, each of which corresponds to 14U, which simplifies the design and installation of the RFID reader system. .

Preferably, in the above application example, one of the three RFID reader modules is set as a main module, and the other two RFID reader modules are arranged as a sub-module, wherein the main module is used for each card antenna in the system The operation is controlled, and the sub-module is used to expand the number of card antennas to cover the required cabinet height. In this way, component costs can be reduced and the assembly flexibility.

Preferably, the end of each reader module is provided with a docking structure to achieve docking with other reader modules, including mechanical and electrical connections.

3 is a schematic diagram showing the internal structure of a first embodiment of an RFID reader module of the RFID identification system according to the present invention. Referring to FIG. 1 to FIG. 3, the RFID reader module 100 includes an elongated housing 10 and a circuit board 14 disposed in the housing 10. The housing 10 is provided with a plurality of card antennas. The group slot 120 is provided with a socket (not shown) electrically connected to the plug of each card antenna 200.

Preferably, the housing 10 includes a profile body 11 and a first plug 12 and a second plug 13 at both ends in the longitudinal direction of the profile body 11.

The profile body 11 is selected from the group consisting of aluminum profiles, plastic profiles, and aluminum profiles, and is suitable for use at the operating temperature of the cabinet. In addition, the width of the RFID reader module is controlled between 30 and 50 mm, and the thickness is controlled between 10 and 20 mm, which can significantly improve the spatial adaptability of the RFID reader module. Thus, the layout and operation can be performed in a small space. .

Preferably, the housing 10 has a rectangular cross section, and a pair of

slots

110, 120, that is, a horizontal slot 110 and a vertical position, are respectively disposed on two adjacent wall surfaces of the housing 10 (such as the side surface 10a and the front surface 10b). Slot 120. In the server cabinet equipment monitoring application, when the RFID reader module is installed on the side of the cabinet, the card antenna can be mounted on the vertical position slot 120 (on the front side of the housing) so that the card antenna is parallel to the device (server). When the RFID reader module is mounted on the inner surface of the cabinet, the card antenna can be mounted on the horizontal slot 110 (on the side of the housing) so that the card antenna is parallel to the device (server) and thus has different The installation location improves the adaptability to the installation environment.

Preferably, the cross section of the profile body 11 is in an unclosed shape, for example with an opening The housing 10 further includes a light transmissive plate 130 overlying the opening. The advantage of the light-transmitting plate is that the status indicators corresponding to the card antennas can be observed, so that the status indicators can be located in the housing. Of course, other structures may be provided on the light transmissive plate or inside the casing to make the indication of the status indicator more obvious.

Preferably, the opposite side walls of the housing 10 are provided with mounting guides 140 extending along the length of the housing. Correspondingly, a mounting bracket (not shown) is disposed in the cabinet of the server. When installing, the mounting guide 140 of the RFID reader is placed in the mounting bracket, and then can be used as needed during use. The RFID reader slides in the installation deck, so that the card antenna is installed with the U position corresponding to the corresponding device.

Preferably, referring to FIG. 2 and FIG. 3, the RFID reader module is provided with a docking structure 150 along one end of its length direction (ie, the side where the second plug 13 is located), and the docking structure 150 includes a plurality of card slots 151 and The USB socket 152, specifically, the USB socket 152 is disposed on the circuit board 14, and the card slot 151 is disposed on the second plug 13. Suitably, the docking structure provided at the end of the RFID reader module docked therewith includes a post coupled with the card slot 151 and a USB plug coupled to the USB jack 152 so that the two can be docked together to implement the mechanism Connection and electrical connection.

4 is a schematic diagram showing the internal structure of a second embodiment of an RFID reader module of the RFID identification system according to the present invention. The difference from the first embodiment is that the docking structure 150 disposed at one end of the RFID reader module includes a card slot 151 and a USB socket 152, and the docking structure disposed at the other end includes a post 154 and a USB plug 153. In this way, it can be docked with an adjacent RFID reader module.

In the first embodiment and the second embodiment of the RFID reader module, the mutual cooperation The number of the posts and the card slots may be one or more, for example two pairs or three pairs, to increase the connection reliability.

5 is a schematic structural view of a card antenna of the RFID identification system of the present invention, and FIG. 6 is a schematic diagram of a combination of an RFID reader module and a card antenna of the RFID identification system according to the present invention. Referring to FIG. 5 and FIG. 6, the card antenna 200 for an RFID reader/writer includes a main body portion 21 and a plug 22 for interfacing with an external RFID reader/writer. The main body portion 21 is provided with an induction coil 23, and the plug 22 is provided. An external terminal 24 electrically connected to the induction coil 23 is provided with hooks 25 disposed on both sides of the plug 22.

Preferably, the base body 21 and the base of the plug 22 are transparent substrates. The transparent substrate is made of a light-transmitting material, such as a transparent plastic. Thus, the line of sight is not obstructed, and the state of other devices can be observed through the card antenna, so that the card antenna is suitable for more monitoring situations. Of course, the induction coil is not limited to the use of a light-transmitting material, and an opaque material may be employed

Preferably, the main body portion 21 has a hollowed-out region 26 around which the induction coil surrounds the hollowed-out region 26. Compared with the whole chip type, setting the cutout area can reduce or reduce the card antenna from adverse effects such as thermal deformation, and can avoid the influence of the antenna on the ventilation and heat dissipation in the use environment. For example, in a cabinet, the impact on ventilation and heat dissipation inside the cabinet can be greatly reduced.

The card antenna for the RFID reader/writer of the utility model uses the hook 25 to realize locking with the casing while being inserted, and the operation is quick and convenient, and is suitable for temporary installation and application at the work site.

It can be seen from the above description that the utility model is suitable for being assembled in the field by setting a long RFID reader module and a pluggable card antenna, and has a positioning monitoring function on the electronic tag corresponding to the card antenna.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the utility model. The type of the invention is susceptible to various modifications and changes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

An RFID reader module comprising a housing and a circuit board located in the housing, wherein the housing has an elongated shape, and at least one of the surrounding wall surfaces of the housing is along the housing A length of the body is arranged at a set interval with a set of slots, and each of the set of slots is used to connect a card antenna.
The RFID reader module according to claim 1, wherein a front side and a side of the housing are respectively provided with a set of slots.
The RFID reader module according to claim 1, wherein at least one end of the housing in the longitudinal direction is provided with a docking structure for docking with an adjacent RFID reader module.
The RFID reader module according to claim 3, wherein the docking structure comprises a USB socket and a card slot, or comprises a USB plug and a post.
The RFID reader/writer module according to claim 1, wherein the opposite side walls of the surrounding wall surface of the casing are provided with mounting chutes extending along the longitudinal direction of the casing.
The RFID reader module of claim 1 wherein said housing includes a profile body and a plug located at each end of the profile body.
The RFID reader/writer module according to claim 1, wherein a light transmissive plate is disposed on a wall surface of the casing, and the circuit board in the casing is provided with the slot. Corresponding to the set status indicator, the status indicator faces the light transmissive plate.
The RFID reader/writer module according to claim 1, wherein each slot on the housing is in a one-to-one correspondence with the mounting U position of the server cabinet. Arranged on the housing.
An RFID reader/writer system, comprising: an RFID reader module, or two or more RFID reader modules that are butted together in a length direction, and respectively plugged into the RFID reader/writer A plurality of card antennas in a slot of the module, wherein the RFID reader module is the RFID reader module according to any one of claims 1-8.
The RFID reader/writer system according to claim 9, wherein the card antenna comprises: a main body portion and a plug, the main body portion having a hollowed out area, and an induction coil surrounding the hollowed out area, The plug is provided with an external terminal electrically connected to the induction coil, wherein the external terminal is electrically connected to a socket on a circuit board of the RFID reader module, and both sides of the plug are provided with the slot card Pick up the hook.