A radio frequency identification device and method based on a sealed metal shell

Abstract

The present invention discloses a radio frequency identification device and method based on a sealed metal shell, comprising a metal shell, wherein the metal shell is composed of a metal can body and a metal top cover arranged at the upper end thereof, an information identification component for identifying an electronic tag inside the metal can body is installed at the upper end of the metal top cover, the metal top cover is provided with a control box for installing the information identification component, and the electronic tag is fixed on the surface of the device to be identified; the information identification component comprises a radio frequency identification reader arranged on the upper end surface of the metal top cover, a connector of the radio frequency identification reader is connected to a transceiver antenna arranged on the lower end surface of the metal top cover through a data transmission component, and the data transmission component is used to penetrate the metal top cover. The present application is designed to address the drawbacks of the existing device, and can break through the shielding of the metal shell on the radio frequency signal, and achieve the effect of radio frequency identification communication of the device inside the metal shell while ensuring the sealing integrity of the metal shell.

Description

Technical Field

[0001] The present invention relates to the field of radio frequency identification technology, and in particular to a radio frequency identification device and method based on a sealed metal shell. Background Art

[0002] Metal shell products are widely used in various industries, such as various pressure vessels. Various equipment, devices or parts are installed inside these metal shells. In order to monitor the identity information, usage time information, life information or warranty period information of the devices or parts inside these metal shells, it is necessary to read or write relevant information of the electronic tags encapsulated on the devices inside the metal shells in real time, and judge the status of the identified devices and actively prompt alarms for dangerous states according to the software setting rules, such as identifying as non-genuine, overused or expired products. However, due to the shielding effect of the metal shell on the radio frequency signal, the existing radio frequency identification method cannot perform radio frequency communication with the electronic tags encapsulated on the internal parts of the metal shell from the outside, and cannot achieve the purpose of real-time monitoring of the device status information in the metal shell to protect the equipment or ensure the downstream production quality and production safety of the equipment.

[0003] In view of the above problems, a radio frequency identification device and method based on a sealed metal shell is now provided. Summary of the invention

[0004] The object of the present invention is to provide a radio frequency identification device and method based on a sealed metal housing to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A radio frequency identification device based on a sealed metal shell, comprising a metal shell, the metal shell being composed of a metal can body and a metal top cover arranged at the upper end thereof, an information identification component for identifying an electronic tag inside the metal can body being installed at the upper end of the metal top cover, the metal top cover being provided with a control box for installing the information identification component, and the electronic tag being fixed on the surface of the device to be identified;

[0007] The information identification component includes an RFID reader arranged on the upper end surface of the metal top cover. The connector of the RFID reader is connected to a transceiver antenna arranged on the lower end surface of the metal top cover through a data transmission component. The data transmission component is used to penetrate the metal top cover. The transceiver antenna is used to send the signal sent by the RFID reader to the electronic tag in the form of electromagnetic waves and to receive a response signal given by the electronic tag and feed the response signal back to the RFID reader.

[0008] As a further solution of the present invention: the information identification component also includes a signal prompt component electrically connected to the radio frequency identification reader for sending different indication signals to the operator.

[0009] As a further solution of the present invention: the signal prompt component includes a controller electrically connected to the radio frequency identification reader, and the output end of the controller is connected to an indicator light for emitting light information and a buzzer for emitting sound information.

[0010] As a further solution of the present invention: the transceiver antenna is an enameled coil or may be composed of one or more printed circuit loops.

[0011] As a further solution of the present invention: the indicator light at least includes a green indicator light and a red indicator light.

[0012] As a further solution of the present invention: the data transmission component includes a through hole opened on the metal top cover, an insulating bolt is cooperated in the through hole, a nut is cooperated at one end of the insulating bolt, a sealing gasket is provided between the insulating bolt and the metal top cover, and the sealing gasket and the metal top cover are locked together by cooperating with the nut, so two conductor rods 1 and 2 are integrally formed inside the insulating bolt, the upper ends of the conductor rods 1 and 2 are connected to the connector of the radio frequency identification reader through data cables, and locking nuts that cooperate with the insulating bolt are provided at the ends of the data cables, and the lower ends of the conductor rods 1 and 2 are connected to the transceiver antenna through antenna lead-out wires 1 and 2.

[0013] A recognition method for a radio frequency identification device based on a sealed metal shell: after the radio frequency identification reader is connected to a power source, it will start to send out electrical signals at a certain frequency. The electrical signals are transmitted to a transceiver antenna through a wire and a conductor rod on an insulating bolt, so that the transceiver antenna sends out a corresponding radio frequency signal, and an electromagnetic field formed by radio frequency energy is formed near the transceiver antenna; at this time, an electronic tag in the electromagnetic field will be triggered and send out the information stored inside through the radio frequency signal; at the same time, the transceiver antenna will receive a response signal returned by the electronic tag and transmit it to the radio frequency identification reader through a wire path; the software program set in the radio frequency identification reader will make an identification based on the information stored in the read electronic tag, and the controller will control the indicator light and buzzer in the prompt component to work after receiving the corresponding identification signal.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the present application is designed to address the drawbacks of the prior art devices, and can break through the shielding of radio frequency signals by the metal shell, and achieve the effect of radio frequency identification communication of the device inside the metal shell while ensuring the sealing integrity of the metal shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the internal structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 3 It is a front view of the present invention.

[0018] Figure 4 yes Figure 3 Section view along AA direction.

[0019] The reference numerals in the figure represent: 1, metal shell 11, metal tank body 12, metal top cover 2, identified device 3, electronic tag 4, radio frequency identification reader 41, connector 42, wire 43, locking nut 44, green indicator light 45, red indicator light 46, buzzer 47, control box 5, transceiver antenna 51, antenna lead wire 1 52, antenna lead wire 2 6, insulating bolt 61, conductor rod 1 62, conductor rod 2 63, nut 64, sealing washer. DETAILED DESCRIPTION

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", "pasting" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-4 In an embodiment of the present invention, a radio frequency identification device based on a sealed metal shell includes a metal shell 1, wherein the metal shell 1 is composed of a metal can body 11 and a metal top cover 12 arranged at the upper end thereof, an information identification component for identifying an electronic tag 3 inside the metal can body 11 is installed at the upper end of the metal top cover 12, and the metal top cover 12 is provided with a control box 47 for installing the information identification component, and the electronic tag 3 is fixed on the surface of the device 2 to be identified;

[0024] The information identification component includes an RFID reader 4 disposed on the upper end surface of the metal top cover 12, and a connector 41 of the RFID reader 4 is connected to a transceiver antenna 5 disposed on the lower end surface of the metal top cover 12 through a data transmission component, and the transceiver antenna 5 is used to transmit the signal sent by the RFID reader 4 to the electronic tag 3 in the form of electromagnetic waves and to receive a response signal given by the electronic tag 3 and feed the response signal back to the RFID reader 4;

[0025] The information identification component also includes a signal prompt component electrically connected to the RFID reader 4 for sending different indication signals to the operator;

[0026] The signal prompt component includes a controller electrically connected to the RFID reader 4, and the output end of the controller is connected to an indicator light for emitting light information and a buzzer 46 for emitting sound information;

[0027] The indicator lights at least include a green indicator light 44 and a red indicator light 45. When a control condition is triggered, the signal light can selectively light up an indicator light of a specific color, and the buzzer can emit an alarm buzzer.

[0028] The data transmission component includes a through hole opened on the metal top cover 12, an insulating bolt 6 is matched in the through hole, a nut 63 is matched at one end of the insulating bolt 6, a sealing gasket 64 is provided between the insulating bolt 6 and the metal top cover 12, and the sealing gasket 64 and the metal top cover 12 are locked together by matching with the nut 63, so two conductor rods 1 61 and conductor rod 2 62 are integrally formed inside the insulating bolt 6, the upper ends of the conductor rods 1 61 and 62 are connected to the connector 41 of the radio frequency identification reader 4 through the data line 42, and the end of the data line 42 is provided with a locking nut 43 matched with the insulating bolt 6, and the lower ends of the conductor rods 1 61 and 62 are connected to the transceiver antenna 51 through the antenna lead wire 1 51 and the antenna lead wire 2 52;

[0029] The two conductor rods are used to establish a transmission channel for electrical signals on both sides of the metal shell 1 that is not shielded by the metal shell 1; the RFID reader 4 and the transceiver antenna 5 are respectively connected to the two conductor rods on the insulating bolt 6 on both sides of the metal shell 1, thereby establishing a connected RFID signal transceiver path between the RFID reader 4 and the transceiver antenna 5, and realizing RFID communication with the electronic tag 3 on the identified device 2;

[0030] After the RFID reader 4 is connected to the power supply, it will start to send out electrical signals at a certain frequency. The electrical signals are transmitted to the transceiver antenna 5 through the conductor 42 and the conductor rod on the insulating bolt 6, so that the transceiver antenna 5 sends out a corresponding radio frequency signal, and an electromagnetic field formed by radio frequency energy is formed near the transceiver antenna 5; at this time, the electronic tag 3 in the electromagnetic field will be triggered, and the information stored inside it will be sent out through the radio frequency signal; at the same time, the transceiver antenna 5 will receive the response signal returned by the electronic tag 3 and transmit it to the RFID reader 4 through the wire path; the software program set in the RFID reader 4 will identify, judge and record according to the information stored in the electronic tag 3 read, and issue a corresponding response execution instruction.

[0031] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A radio frequency identification device based on a sealed metal shell, comprising a metal shell (1), wherein the metal shell (1) is composed of a metal can body (11) and a metal top cover (12) arranged at the upper end thereof, characterized in that: An information identification component for identifying an electronic tag (3) inside the metal can (11) is installed at the upper end of the metal cover (12), and the metal cover (12) is provided with a control box (47) for installing the information identification component. The electronic tag (3) is fixed on the surface of the device (2) to be identified; the information identification component includes a radio frequency identification reader (4) arranged on the upper end surface of the metal cover (12), a connector (41) of the radio frequency identification reader (4) is connected to a transceiver antenna (5) arranged on the lower end surface of the metal cover (12) through a data transmission component, the data transmission component is used to penetrate the metal cover (12), and the transceiver antenna (5) is used to send the signal sent by the radio frequency identification reader (4) to the electronic tag (3) in the form of electromagnetic waves, and to receive a response signal given by the electronic tag (3) and feed the response signal back to the radio frequency identification reader (4); The information identification component also includes a signal prompt component electrically connected to the radio frequency identification reader (4) for sending different indication signals to the operator; The transceiver antenna (5) is an enameled coil or is composed of one or more printed circuit loops; The data transmission component comprises a through hole formed on a metal top cover (12), an insulating bolt (6) being provided in the through hole, a nut (63) being provided at one end of the insulating bolt (6), a sealing gasket (64) being provided between the insulating bolt (6) and the metal top cover (12), and the sealing gasket (64) and the metal top cover (12) being locked together by cooperating with the nut (63), two conductor bars (61) and two conductor bars (62) being integrally formed inside the insulating bolt (6), the upper ends of the conductor bars (61) and the conductor bars (62) being connected to a connector (41) of a radio frequency identification reader (4) through a data line (42), a locking nut (43) cooperating with the insulating bolt (6) being provided at the end of the data line (42), and the lower ends of the conductor bars (61) and the conductor bars (62) being connected to a transceiver antenna (5) through an antenna lead wire (51) and an antenna lead wire (52).

2. The radio frequency identification device based on a sealed metal housing according to claim 1, characterized in that: The signal prompt component comprises a controller electrically connected to the radio frequency identification reader (4), wherein an output end of the controller is connected to an indicator light for emitting light information and a buzzer (46) for emitting sound information.

3. The radio frequency identification device based on a sealed metal housing according to claim 2, characterized in that: The indicator lights at least include a green indicator light (44) and a red indicator light (45).

4. A method for identifying a radio frequency identification device based on a sealed metal shell according to any one of claims 1 to 3, characterized in that: After the radio frequency identification reader (4) is connected to a power source, it will start to send out an electrical signal at a certain frequency. The electrical signal is transmitted to the transceiver antenna (5) through the conductor wire and the conductor rod on the insulating bolt (6), so that the transceiver antenna (5) sends out a corresponding radio frequency signal, and an electromagnetic field formed by radio frequency energy is formed near the transceiver antenna (5); at this time, the electronic tag (3) in the electromagnetic field will be triggered and send out the information stored inside it through the radio frequency signal; at the same time, the transceiver antenna (5) will receive the response signal returned by the electronic tag (3) and transmit it to the radio frequency identification reader (4) through the wire path; the software program set in the radio frequency identification reader (4) will make an identification based on the information stored in the read electronic tag (3), and the controller will control the indicator light and the buzzer in the prompt component after receiving the corresponding identification signal.

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