CN210072634U

CN210072634U - Reader-writer of foldable installation based on passive RFID technique

Info

Publication number: CN210072634U
Application number: CN201921059646.1U
Authority: CN
Inventors: 谢元芒; 章良; 王凌艳
Original assignee: Liaoning Provincial College of Communications
Current assignee: Liaoning Provincial College of Communications
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2020-02-14
Anticipated expiration: 2029-07-09

Abstract

A reader-writer based on folding installation of passive RFID technology comprises a shell, a rotating shaft assembly is installed between two side walls arranged in the width direction of the shell, external interfaces are integrally formed at the end parts of two ends of the rotating shaft assembly, a plurality of contacts and a plurality of first threaded holes are arranged on the upper surface of the external interfaces, the external interfaces are connected with an external main device through the first threaded holes and bolts, a male buckle is arranged at one end of the external main device, which is far away from the external interfaces, a second threaded hole is arranged at the four corners of the lower surface of the shell, one edge of the end surface of the shell, which is positioned at one end of the rotating shaft assembly, is set to be a round angle, the other edge is set to be a right angle, and a passive RFID reading and writing module is installed in the inner cavity of the shell, third threaded holes are formed in four corners of a mainboard of the passive RFID reading and writing module, and a standardized interface is arranged at the end part of the mainboard. The utility model has the characteristics of convenient to use, small in size, ability folding installation, reading and writing passive RFID electronic tags are far away.

Description

Reader-writer of foldable installation based on passive RFID technique

Technical Field

The utility model belongs to the technical field of the RFID read write line, concretely relates to read write line of foldable installation based on passive RFID technique.

Background

At present, compared with an active RFID electronic tag, the technology of the Internet of things based on the passive RFID electronic tag has the advantages of low cost, good investment protection (having an industrial standard) and the like, and is more and more widely applied. Such as warehouse management, logistics distribution, store goods management, vehicle charging, campus card, bus card, membership card, library inventory management, etc. However, the application of the internet of things technology of the passive RFID tag in the fields of traffic management and traffic law enforcement (including traffic law enforcement) is not mature enough, and the main reason is that no suitable handheld terminal capable of being used for road mobile traffic law enforcement exists. Most of the existing hand-held terminals adopt embedded passive RFID read-write modules (devices), the distance for reading passive RFID electronic tags by the hand-held terminals is short, the read-write distance is usually less than 3 meters, and the read-write distance of more than 8 meters is usually required for road traffic management and traffic law enforcement, so that the hand-held terminals are not suitable for use; in order to realize remote reading and writing, the transmitting power and the antenna size of an RFID reading and writing module (device) antenna are increased by a very small number of manufacturers, the appearance of the reading and writing module (device) is made into a relatively independent gun-shaped appearance, the reading and writing module (device) is combined with external host equipment into a whole through a fixing screw, and data interaction is realized with the external host equipment through pins or contacts, so that the reading and writing distance can reach more than 8 meters. However, the handheld terminal is large in overall dimension, heavy, poor in handheld operation experience, not suitable for road traffic management and traffic law enforcement and equipment storage, and influences the practicability of traffic law enforcement. Therefore, no handheld terminal for identifying the passive RFID electronic tag is suitable for traffic management and traffic law enforcement, and no reader-writer for remotely reading and writing the passive RFID electronic tag is actually suitable for manufacturing the handheld terminal.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the handheld terminal to current reading and writing passive RFID electronic tags is bulky, use the heaviness, perhaps reads and writes passive RFID electronic tags apart from near, battery continuation of the way outstanding problem such as poor, utility model's a reader-writer for making the volume less, reading and writing distance is far away, foldable installation, based on passive RFID technique for make the handheld terminal that is fit for traffic management and traffic law enforcement work and other similar application scenes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a reader-writer based on folding installation of passive RFID technology comprises a shell, wherein the shell is a flat cuboid shell, a rotating shaft assembly is arranged between two side walls arranged in the width direction of the shell, external interfaces are integrally formed at the end parts of two ends of the rotating shaft assembly, the upper surface of each external interface is provided with a plurality of contacts and a plurality of first threaded holes, each external interface is connected with an external main device through the first threaded holes and bolts, one end, away from the external interface, of the external main device is provided with a male buckle, the four corners of the lower surface of the shell are provided with second threaded holes, one edge, located at the end surface of one end of the rotating shaft assembly, of the shell is provided with a round corner, the other edge is provided with a right angle, one end, away from the rotating shaft assembly, of the shell is provided with a female buckle matched with the male buckle, a passive RFID reading-writing module, the end of the main board is provided with a standardized interface.

The rotating shaft assembly comprises two short rotating shafts, the two short rotating shafts are rotatably installed on two side walls of the shell through bearings respectively, a torsion spring is sleeved on an outer ring of each bearing, an inner interface is arranged on an inner end face of each short rotating shaft, the two inner interfaces are connected with one end of a flat cable, the other end of the flat cable is connected with a standardized interface, an outer end face of each short rotating shaft is welded with an outer interface, and the two short rotating shafts are connected through connecting rods.

The torsion spring is composed of two torsion arms, wherein one torsion arm is arranged on the rotating shaft or the connecting rod, the other torsion arm is arranged on the shell, and the number of the torsion springs on each bearing is 1 or 2.

The contacts may be contact or plug-in type.

The bearing adopts a rolling bearing.

The utility model has the advantages that:

the utility model has the characteristics of the assembly is convenient, convenient to use, small in size, can folding installation, reading and writing passive RFID electronic tags apart from long waiting, especially adapted preparation is fit for the handheld terminal of the remote reading and writing passive RFID electronic tags of hand-held type. The passive RFID hand-held set solves the outstanding problems of large volume, short identification distance, battery continuous range and the like of the conventional passive RFID hand-held set.

Drawings

Fig. 1 is an overall appearance diagram of the closed state of the folding-type-mounted reader-writer based on the passive RFID technology.

Fig. 2 is an overall appearance diagram of the open state of the reader-writer based on the folding installation of the passive RFID technology.

Fig. 3 is a front view of the folding-mounted reader/writer based on passive RFID technology.

Fig. 4 is a rear view of the folding mounted reader based on passive RFID technology.

Fig. 5 is a bottom view of the foldaway reader/writer based on passive RFID technology.

Fig. 6 is a left side view of the folding mounted reader/writer based on passive RFID technology.

Fig. 7 is a front view of the read/write module based on passive RFID technology in the present invention.

Fig. 8 is a top view of the read/write module based on passive RFID technology in the present invention.

Fig. 9 is an overall appearance view of the assembly of the central spindle of the present invention.

Fig. 10 is a cross-sectional view of the housing of the folding mounted reader/writer of the present invention based on passive RFID technology.

FIG. 11 is an external schematic view of the external main device of the present invention;

1-a housing; 2-external interface; 3-contact; 4-a first threaded hole; 5-a second threaded hole; 6-female bayonet; 7-round corner; 8-right angle; 9-a third threaded hole; 10-standardized interface; 11-short rotating shaft; 12-a connecting rod; 13-inner interface; 14-a bearing; 15-a torsion spring; 16-flat cable, 17-external main equipment, 18-male buckle and 19-buckle button.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

As shown in fig. 1 to 11, a reader/writer with foldable installation based on passive RFID technology comprises a housing 1, wherein the housing 1 is made of a material which shields ultrahigh frequency wireless signals and is durable, and is formed by butt-jointing, fastening and folding an upper shell and a lower shell, the size and shape of the housing 1 should be adapted to a passive RFID read/write module and a rotating shaft assembly, the housing 1 is a flat cuboid housing, the rotating shaft assembly is installed between two side walls arranged in the width direction of the housing 1, the rotating shaft assembly is used for realizing foldable installation, and is used for realizing electric connection and data line connection between an external main device or an intermediate device, and is used for realizing fixed installation of a short rotating shaft 11 and the external main device, an external interface 2 is integrally formed at the end parts of both ends of the rotating shaft assembly, six contacts 3 and two first threaded holes 4 are arranged on the upper surface of the external interface 2, the contact 3 is used for connecting with the power line and the data line of the external main device 17, the first screw hole 4 is used for fastening and installing the external main device 17, the two contacts 3 arranged along the width direction of the external interface 2 take the connecting line of the circle centers of the two first screw holes 4 as the symmetrical central line, the external interface 2 is connected with the external main device 17 into a whole body through the first screw holes 4 and the bolts, the appearance design of the external main device 17 is adapted to the structural characteristics of the device, the end of the external main device 17 far away from the external interface is provided with a male buckle 18 for corresponding to the female buckle 6 of the utility model to realize the opening and closing operation, the upper surface of the shell of the external main device 17 is provided with a buckle button 19 corresponding to the position of the male buckle 18, the four corners of the lower shell of the shell 1 are provided with second screw holes 5, one edge of the end surface of the shell 1 at one end of the rotating shaft component is, realize the rotation control at 90 degrees angles, avoid short pivot 11 excessive rotations to cause the winding displacement to destroy, another arris sets up right angle 8, and shell 1 keeps away from pivot subassembly one end and is provided with 18 complex female buckles 6 of public buckle for realize with external main equipment 17 open, closed operation, surface mounting has passive RFID read write module on the lower casing of shell 1, and third screw hole 9 has been seted up to the four corners department of passive RFID read write module's mainboard, and the mainboard is through third screw hole 9 on it, second screw hole 5 and bolt and shell 1 fixed mounting on shell 1, and the tip of mainboard is provided with standardized interface 10. Passive RFID read write module is the utility model discloses an important part, preferred small, low power dissipation, the product far away of read-write distance are fit for the product of encapsulation in a miniature shell, the utility model discloses a passive RFID read write module model be CM-1 RFIDHF. When the volume of the passive RFID read-write module is too large, the passive RFID read-write module can be divided into an antenna part, a circuit board and related components, and the circuit board and the related components are installed in the external main equipment 17, so that the hand-held terminal with small volume can be manufactured by adopting the folded and installed module, and the external main equipment 17 adopts a smart phone or a smart terminal.

The rotating shaft assembly comprises two short rotating shafts 11, the two short rotating shafts 11 are rotatably installed with two parallel side walls of the shell 1 through bearings 14 respectively, the outer ring of the bearing 14 is fixedly installed with the shell 1, the inner ring of the bearing 14 is fixedly installed with the short rotating shafts 11, the outer ring of the bearing 14 is sleeved with a torsion spring 15, the inner end surfaces of the two short rotating shafts 11 are provided with inner interfaces 13, or one of the short rotating shafts 11 is provided with two inner interfaces 13, the two inner interfaces 13 are connected with one end of a flat cable 16, the other end of the flat cable 16 is connected with a standardized interface 10 of a passive RFID read-write module, the flat cable 16 should be a product with good elasticity, good quality and wire diameter, 1 or 2 pieces can be properly configured according to requirements and are matched with the short rotating shafts 11 for use, the outer end surface of the short rotating shaft 11 is welded with an external interface 2, the two short rotating shafts 11, for corresponding sixteen contacts on the external interface 2.

Torsion spring 15 comprises two torsion arms, and one of them torsion arm is installed on short rotating shaft 11 or connecting rod 12, and another torsion arm is installed on shell 1, and torsion spring 15 on every bearing 14 sets up to 1 or 2, and torsion spring 15 is the realization the utility model discloses automatic part of opening, and guarantee the utility model discloses stability under operating condition selects torsion moderate, simple to operate's product.

The contacts 3 may be of the contact or plug type.

The bearing 14 is a rolling bearing which plays a role in rotation and is used for realizing folding installation, and the rolling bearing is preferably a miniature, firm and durable product with a proper size.

When the RFID reader-writer of the utility model needs to be opened, the buckle button 19 on the external main device 17 is pressed, the RFID reader-writer of the utility model is immediately opened under the action of the torsion spring 15 and automatically opened to an angle of 90 degrees; accomodate when needs are folding the utility model discloses during the RFID read write line, the RFID read write line is closed to the manual operation, and the 18 joints of public buckle on the external master 17 are in the utility model discloses on the female buckle of RFID read write line, accomplish the utility model discloses the closed operation of RFID read write line.

Claims

1. A passive RFID technology-based folding-type mounting reader-writer is characterized by comprising a shell, wherein the shell is a flat cuboid shell, a rotating shaft assembly is arranged between two side walls arranged in the width direction of the shell, external interfaces are integrally formed at the end parts of two ends of the rotating shaft assembly, the upper surface of each external interface is provided with a plurality of contacts and a plurality of first threaded holes, each external interface is connected with an external main device through the first threaded holes and bolts, one end, away from the external interface, of the external main device is provided with a male buckle, the four corners of the lower surface of the shell are provided with second threaded holes, one edge of the end surface, located at one end of the rotating shaft assembly, of the shell is provided with a round corner, the other edge of the end surface is provided with a right angle, one end, away from the rotating shaft assembly, of the shell is provided with a female buckle matched with the male buckle, a passive RFID, the end of the main board is provided with a standardized interface.

2. A fold-mounted reader/writer based on passive RFID technology according to claim 1, characterized in that: the rotating shaft assembly comprises two short rotating shafts, the two short rotating shafts are rotatably installed on two side walls of the shell through bearings respectively, a torsion spring is sleeved on an outer ring of each bearing, an inner interface is arranged on an inner end face of each short rotating shaft, the two inner interfaces are connected with one end of a flat cable, the other end of the flat cable is connected with a standardized interface, an outer end face of each short rotating shaft is welded with an outer interface, and the two short rotating shafts are connected through connecting rods.

3. A fold-mounted reader/writer based on passive RFID technology according to claim 2, characterized in that: the torsion spring is composed of two torsion arms, wherein one torsion arm is arranged on the rotating shaft or the connecting rod, the other torsion arm is arranged on the shell, and the number of the torsion springs on each bearing is 1 or 2.

4. A fold-mounted reader/writer based on passive RFID technology according to claim 1, characterized in that: the contacts may be contact or plug-in type.

5. A fold-mounted reader/writer based on passive RFID technology according to claim 2, characterized in that: the bearing adopts a rolling bearing.