Smart power cord and system with NFC function

Abstract

The present invention discloses an intelligent power cord with NFC functionality, comprising a power cord plug, a power cable, and a power cord socket connected in sequence, and a signal acquisition terminal sleeved on the power cord. The power cord plug comprises a plug body and a plug protective cover, with a first NFC antenna sleeved on the plug protective cover. The power cord socket comprises a socket body and a socket protective cover, with a second NFC antenna sleeved on the socket protective cover. The signal acquisition terminal comprises a processor module, a power module, a storage module, a communication module, and an NFC card reader module, all connected to the processor module. The NFC card reader module is connected to the first and second NFC antennas via card reading wires, acquires terminal information, uploads it to the processor module, and executes control commands issued by the processor module. The power cord of the present invention can directly communicate with an NFC tag without manually moving the card reader during use, resulting in low cost, high convenience, and an excellent user experience.

Description

Technical Field

[0001] The present invention relates to a power cord, and in particular to an intelligent power cord with an NFC function and a system thereof. Background Art

[0002] NFC (Near Field Communication) is a short-range wireless communication technology. Devices using NFC communication technology can exchange data when they are close to each other, realizing functions such as mobile payment, electronic ticketing, access control, identity recognition, and anti-counterfeiting. It is a reusable information acquisition tool for IoT applications.

[0003] In industrial and civilian applications, when it is necessary to track the operating location or status of electronic devices while also meeting security and confidentiality requirements, using NFC communication technology to obtain relevant information is an excellent solution. Therefore, NFC communication technology is currently widely used in industrial and civilian applications. The main application is to attach a tag to the target location and use an NFC reader to read the information from the tag.

[0004] When electronic instruments or devices are randomly placed in a location and are working, they need to read the NFC tag information on the chassis. If corresponding NFC card readers are deployed at all power outlets, the cost of deploying them would be too high due to the large number of outlets and their wide distribution. Currently, the only option is to use additional card readers close to the NFC tags on the chassis to read the information and then send the information to the server. Due to the large number of instruments or devices, manual operation is required every time, which not only reduces work efficiency but also has a very poor user experience.

[0005] In addition, when electronic instruments or devices need to read NFC tag information at fixed locations around them, if the electronic instruments or devices are electrified and equipped with card reader functions, the modification cost will be very high. Moreover, due to the large size and weight of the instruments and devices, moving the electronic instruments or devices to read the tags is not feasible and certainly not suitable! The current solution is still to use additional card readers to read NFC tag information.

[0006] How to enable electronic instruments or devices to read NFC tag information at the work area conveniently and quickly, and at the same time make the NFC tag information of electronic instruments or devices easily accessible to the work area, how to solve the above problems at low cost and improve user experience are all urgent issues to be solved. Summary of the Invention

[0007] The main purpose of the present invention is to overcome the deficiencies in the prior art and provide a smart power cord with NFC function and a system thereof, which is particularly suitable for work areas with a large number and variety of electronic devices.

[0008] The technical problem to be solved by the present invention is to provide a smart power cord with NFC function and its system, which has a compact structure, is easy to assemble and disassemble, easy to manufacture, safe, reliable and practical. By modifying the power cord used to power electronic devices, that is, by modifying the power supply accessories of electronic devices, low-cost and fast NFC communication can be achieved to obtain information. When in use, there is no need to manually move the card reader, and it can directly communicate with the NFC tag. After reading the information, the data is transmitted to the background server via wireless or wired means, which greatly improves the convenience of use and user experience, and has industrial utilization value.

[0009] In order to achieve the above object, the technical solution adopted by the present invention is:

[0010] An intelligent power cord with NFC function, comprising a power cord plug, a power cable and a power cord socket connected in sequence, and a signal acquisition terminal sleeved on the power cable;

[0011] The power cord plug includes a plug body and a plug protective cover, one end of the plug body is connected to one end of the power cable and is covered by the plug protective cover, and the other end of the plug body is a free end. The plug protective cover is embedded with a first NFC antenna, and the first NFC antenna is used to sense the first terminal tag;

[0012] The power cord socket includes a socket body and a socket protective cover, one end of the socket body is connected to the other end of the power cable and is covered by the socket protective cover, and the other end of the socket body is a free end, and a second NFC antenna is embedded in the socket protective cover, and the second NFC antenna is used to sense the second terminal tag;

[0013] The signal acquisition terminal includes a processor module, a power module, a storage module, a communication module and an NFC card reader module, all of which are connected to the processor module; the processor module is used for data exchange and control, the power module obtains power from the conductive wire of the power cable to achieve power supply, the storage module is used for data storage, and the communication module is used for data communication with an external network; the NFC card reader module is respectively connected to the first NFC antenna and the second NFC antenna through the card reading wire, obtains the first terminal information of the first terminal tag and the second terminal information of the second terminal tag, uploads the first terminal information and the second terminal information to the processor module, and executes the control command issued by the processor module.

[0014] The power cord of the present invention is further configured as follows: the NFC card reader module includes a first NFC module and a second NFC module, both of which are connected to the processor module; the first NFC module is connected to a first NFC antenna via a card reading wire; and the second NFC module is connected to a second NFC antenna via a card reading wire.

[0015] The power cord of the present invention is further configured as follows: the NFC card reader module includes an NFC module and a switch module connected in sequence, the input end of the NFC module is connected to the processor module, the switch module is connected to the first NFC antenna and the second NFC antenna respectively through the card reading wire, and the processor module controls the switch module to switch between the first NFC antenna and the second NFC antenna by issuing a switching command.

[0016] The power cable of the present invention is further configured as follows: the card reading conductor and the conductive wire of the power cable are arranged in parallel and are both covered within the insulation layer of the power cable.

[0017] The power cord of the present invention is further configured as follows: the communication module is a wired network communication module or a wireless network communication module, the wired network communication module is a power carrier communication module, an Ethernet communication module or a serial communication module, and the wireless network communication module is a Bluetooth communication module, a WIFI communication module or a 3G / 4G / 5G communication module.

[0018] The power cord of the present invention is further configured as follows: the first NFC antenna is embedded in the plug protective cover in a winding manner, and the second NFC antenna is embedded in the socket protective cover in a winding manner; the power cable, the first NFC antenna, and the second NFC antenna are all coaxially distributed.

[0019] The power cord of the present invention is further configured as follows: the processor module adopts a microcontroller with a model number of MS51EC0AE.

[0020] The present invention also provides an intelligent power cord system with NFC function, comprising the aforementioned intelligent power cord with NFC function, and a first terminal tag and a second terminal tag;

[0021] The first terminal tag includes a first tag chip and a first tag antenna connected in sequence, the first tag chip having first terminal information embedded therein, the first tag antenna being attached to the inner side of a panel of the power socket, the power socket hole corresponding to the inner side of the panel of the power socket being located within a central area enclosed by the first tag antenna, and the first terminal information being location information of the power socket;

[0022] The second terminal tag includes a second tag chip and a second tag antenna connected in sequence, the second tag chip having second terminal information built therein, the second tag antenna being attached to the outside of a power input plug of the electronic device, the power input plug being located in a central area enclosed by the second tag antenna, and the second terminal information being an internal code corresponding to the electronic device;

[0023] The power cord plug is matched and connected to the power socket hole of the power socket, the first NFC antenna and the first tag antenna have the same operating frequency, and through mutual induction, the first tag chip is activated, and the first tag chip transmits the first terminal information to the NFC card reader module;

[0024] The power cord socket is matched and connected to the power input plug on the electronic device. The second NFC antenna and the second tag antenna have the same operating frequency. Through mutual induction, the second tag chip is activated, and the second tag chip transmits the second terminal information to the NFC card reader module.

[0025] The processor module obtains the first terminal information and the second terminal information through the NFC card reader module, transmits the first terminal information and the second terminal information to the storage module for storage, and transmits the first terminal information and the second terminal information to the required background server through the communication module.

[0026] The power cord system of the present invention is further configured as follows: the first tag chip and the second tag chip both use a tag chip model FM11NT021.

[0027] The power cord system of the present invention is further configured as follows: the power socket is a wall socket for 220V or 380V AC power in the working area.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] This invention transforms the power cord used to power electronic instruments or devices, integrating an NFC card reader module, a communication module, and other components with the AC power cord to provide a new type of smart power cord with NFC functionality, enabling both NFC card reading and communication functions. Furthermore, for electronic instruments or devices, an NFC tag with embedded coded information is attached to the power plug of the electronic instrument or device itself, while an NFC tag with embedded location information is attached to the power outlet.

[0030] When in use, you only need to connect the smart power cord to the electronic instrument or device and the power socket, and directly call the smart power cord of the present invention to read the relevant information to obtain information quickly and at low cost. It does not require manual use of an additional NFC card reader to directly communicate with the NFC tag, and transmits the read information to the background server through the communication module. The efficiency of obtaining information is high, and the power cord is more portable. For a work area with a large number of electronic devices and a wide variety of electronic devices, it can be achieved at low cost by simply replacing the target electronic devices that need to be monitored with the smart power cord of the present invention, which greatly improves the convenience of use and user experience, and has industrial utilization value.

[0031] The above content is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, the present invention is further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the structure of the smart power cord with NFC function of the present invention;

[0033] Figure 2 This is a schematic diagram of the structure of the power cord plug in the smart power cord with NFC function of the present invention;

[0034] Figure 3 This is a schematic diagram of the structure of the power cord socket in the smart power cord with NFC function of the present invention;

[0035] Figure 4 This is a structural principle diagram of a first embodiment of a signal acquisition terminal in a power line of the present invention;

[0036] Figure 5 This is a structural principle diagram of a second embodiment of a signal acquisition terminal in a power line of the present invention;

[0037] Figure 6 This is a schematic diagram of the structure of the smart power cord system with NFC function of the present invention;

[0038] Figure 7 This is a structural diagram of the first tag antenna in the smart power cord system with NFC function of the present invention;

[0039] Figure 8 This is a schematic structural diagram of the second tag antenna in the smart power cord system with NFC function of the present invention. DETAILED DESCRIPTION

[0040] The present invention will be further described below with reference to the accompanying drawings.

[0041] like Figure 1 As shown, the present invention provides a smart power cord with NFC function, including a power cord plug 1, a power cable 2 and a power cord socket 3 connected in sequence, and a signal acquisition terminal 4 sleeved on the power cable 2.

[0042] like Figure 2 As shown, the power cord plug 1 includes a plug body 11 and a plug protective cover 12. One end of the plug body 1 is connected to one end of the power cable 2 and is covered by the plug protective cover 12. The other end of the plug body 11 is a free end. A first NFC antenna 13 is embedded on the plug protective cover 12. The first NFC antenna 13 is used to sense the first terminal tag.

[0043] like Figure 3As shown, the power cord socket 3 includes a socket body 31 and a socket protective cover 32. One end of the socket body 31 is connected to the other end of the power cable 2 and is covered by the socket protective cover 32. The other end of the socket body 31 is a free end. A second NFC antenna 33 is embedded on the socket protective cover 32. The second NFC antenna 33 is used to sense the second terminal tag.

[0044] like Figure 2 and Figure 3 As shown, the first NFC antenna 13 is embedded in the plug protective cover 12 in a winding manner, and the second NFC antenna 33 is embedded in the socket protective cover 32 in a winding manner; the power cable 2, the first NFC antenna 13 and the second NFC antenna 33 are all coaxially distributed.

[0045] like Figure 4 The first embodiment of a signal acquisition terminal is shown. The signal acquisition terminal 4 includes a processor module, a power module, a storage module, a communication module, and an NFC card reader module, all connected to the processor module. The NFC card reader module is connected to a first NFC antenna and a second NFC antenna via card reading wires, respectively. It obtains first terminal information from a first terminal tag and second terminal information from a second terminal tag, uploads the first and second terminal information to the processor module, and executes control commands issued by the processor module. The NFC card reader module includes a first NFC module and a second NFC module, both connected to the processor module. The first NFC module is connected to the first NFC antenna via a card reading wire, and the second NFC module is connected to the second NFC antenna via a card reading wire.

[0046] Preferably, the card reading wire and the conductive wire of the power cable are arranged in parallel and are covered together within the insulation layer of the power cable.

[0047] The processor module is used for data exchange and control, the power supply module obtains power from the conductive wire of the power cable to realize power supply, the storage module is used for data storage, and the communication module is used for data communication with an external network.

[0048] The communication module is a wired network communication module or a wireless network communication module, wherein the wired network communication module is a power carrier communication module, an Ethernet communication module, or a serial communication module, and the wireless network communication module is a Bluetooth communication module, a WIFI communication module, or a 3G / 4G / 5G communication module. The processor module adopts a microcontroller model MS51EC0AE produced by Nuvoton Technology Co., Ltd.

[0049] like Figure 5 The second embodiment of the signal acquisition terminal is shown. Figure 4The difference of the illustrated embodiment 1 is that the NFC card reader module includes an NFC module and a switch module connected in sequence, the input end of the NFC module is connected to the processor module, and the switch module is connected to the first NFC antenna and the second NFC antenna respectively through the card reading wire. The processor module controls the switch module to switch between the first NFC antenna and the second NFC antenna by issuing a switching command.

[0050] like Figure 4 The first NFC module and the second NFC module in Figure 5 The NFC modules in the three can all use the card reader chip model FM17550 produced by Shanghai Fudan Microelectronics Group Co., Ltd.

[0051] like Figure 6 As shown, the present invention also provides a smart power cord system with NFC function, including a smart power cord with NFC function (such as Figure 1 as shown), and a first terminal label and a second terminal label.

[0052] The first terminal tag includes a first tag chip 5 and a first tag antenna 50 connected in sequence. The first tag chip 5 has first terminal information built in. Figure 7 As shown, the first tag antenna 50 is attached to the inner side of the panel of the power socket 51. The corresponding power socket hole 52 on the inner side of the panel of the power socket 51 is located in the middle area enclosed by the first tag antenna 50. The first terminal information is the location information of the power socket 51. The power socket is a wall socket that provides 220V or 380V AC power in the work area.

[0053] The second terminal tag includes a second tag chip 6 and a second tag antenna 60 connected in sequence. The second tag chip 6 has second terminal information built in. Figure 8 As shown, the second tag antenna 60 is attached to the outside of the power input plug 62 on the electronic device 61 , and the power input plug 62 is located in the middle area enclosed by the second tag antenna 60 . The second terminal information is the internal code corresponding to the electronic device 61 .

[0054] The first tag chip and the second tag chip are both tag chips of model FM11NT021 produced by Shanghai Fudan Microelectronics Group Co., Ltd.

[0055] The power cord plug is matched and connected to the power socket hole of the power socket. The first NFC antenna and the first tag antenna have the same operating frequency. Through mutual induction, the first tag chip is activated, and the first tag chip transmits the first terminal information to the NFC card reader module.

[0056] The power cord socket is matched and connected to the power input plug on the electronic device. The second NFC antenna and the second tag antenna have the same operating frequency. Through mutual induction, the second tag chip is activated, and the second tag chip transmits the second terminal information to the NFC card reader module.

[0057] The processor module obtains the first terminal information and the second terminal information through the NFC card reader module, transmits the first terminal information and the second terminal information to the storage module for storage, and transmits the first terminal information and the second terminal information to the required background server through the communication module.

[0058] The intelligent power cord system with NFC function of the present invention is used as follows Figure 4 When the signal acquisition terminal is shown, the operation steps are as follows:

[0059] a. A second tag antenna is attached to the outside of the power input plug of the electronic device, and the internal code corresponding to the electronic device is marked inside the second tag chip;

[0060] b. A first tag antenna is attached to the inner side of the panel of the power socket, and the first tag chip has the location information of the corresponding power socket marked inside;

[0061] c. Connect the power cord socket of the smart power cord to the power input plug of the electronic device, and plug the power cord plug of the smart power cord into the power socket with the first tag antenna attached in the work area;

[0062] d. When 220V AC power is applied to the power socket, the signal acquisition terminal starts working, and the first NFC module sends a radio frequency signal to the first NFC antenna. The first NFC antenna senses the first tag antenna, activating the first tag chip to transmit the location information of the power socket to the first NFC module.

[0063] e. The first NFC module uploads the received location information to the processor module, which processes the information and then transfers it to the storage module for storage;

[0064] f. The second NFC module sends a radio frequency signal to the second NFC antenna. The second NFC antenna senses the second tag antenna, activates the first and second tag chips, and transmits the internal code corresponding to the electronic device to the second NFC module;

[0065] g. The second NFC module uploads the received internal code to the processor module, which processes it and then transmits it to the storage module for storage;

[0066] h. The communication module uses a 4G communication network. The processor module transmits the received internal code and location information to the corresponding backend server through the communication module as needed.

[0067] The intelligent power cord system with NFC function of the present invention is used as follows Figure 5 When using the signal acquisition terminal shown in the figure, steps a, b, and c are the same as those using Figure 4 The signal acquisition terminals shown are the same, and the data storage and data transmission to the corresponding backend server through the communication module are also the same. The difference is:

[0068] When 220V AC power is applied to the power socket, the signal acquisition terminal works, and the switch module defaults to electrical conduction between the NFC module and the first NFC antenna. The NFC module reads the location information of the first tag chip and transmits it to the processor module;

[0069] When the NFC module completes the signal reading of the first tag chip, the processor module issues a command to control the switch module to switch, so that the NFC module is electrically connected to the second NFC antenna. The NFC module reads the internal code of the second tag chip and transmits it to the processor module.

[0070] The innovation of the present invention lies in combining an NFC card reader module, a communication module, etc. with an AC power cord. When in use, the relevant information read by the power cord of the present invention can be directly called to obtain information quickly and at low cost. There is no need to manually move the card reader to directly communicate with the NFC tag, which is low-cost, highly convenient and provides an excellent user experience.

[0071] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A smart power cord system with NFC function, characterized by: The device comprises a smart power cord with an NFC function, a first terminal tag, and a second terminal tag; The smart power cord with NFC function includes a power cord plug, a power cable and a power cord socket connected in sequence, and a signal acquisition terminal sleeved on the power cable; The power cord plug includes a plug body and a plug protective cover, one end of the plug body is connected to one end of the power cable and is covered by the plug protective cover, and the other end of the plug body is a free end. The plug protective cover is embedded with a first NFC antenna, and the first NFC antenna is used to sense the first terminal tag; The power cord socket includes a socket body and a socket protective cover, one end of the socket body is connected to the other end of the power cable and is covered by the socket protective cover, and the other end of the socket body is a free end, and a second NFC antenna is embedded in the socket protective cover, and the second NFC antenna is used to sense the second terminal tag; The signal acquisition terminal includes a processor module, a power module, a storage module, a communication module, and an NFC card reader module, all of which are connected to the processor module; the processor module is used for data exchange and control, the power module obtains power from the conductive wire of the power cable to achieve power supply, the storage module is used for data storage, and the communication module is used for data communication with an external network; The NFC card reader module is connected to the first NFC antenna and the second NFC antenna respectively through a card reading wire, obtains the first terminal information of the first terminal tag and the second terminal information of the second terminal tag, uploads the first terminal information and the second terminal information to the processor module, and executes the control command issued by the processor module; The power cable, the first NFC antenna and the second NFC antenna are coaxially distributed; The first terminal tag includes a first tag chip and a first tag antenna connected in sequence, the first tag chip having first terminal information embedded therein, the first tag antenna being attached to the inner side of a panel of the power socket, the power socket hole corresponding to the inner side of the panel of the power socket being located within a central area enclosed by the first tag antenna, and the first terminal information being location information of the power socket; The second terminal tag includes a second tag chip and a second tag antenna connected in sequence, the second tag chip having second terminal information built therein, the second tag antenna being attached to the outside of a power input plug of the electronic device, the power input plug being located in a central area enclosed by the second tag antenna, and the second terminal information being an internal code corresponding to the electronic device; The power cord plug is matched and connected to the power socket hole of the power socket, the first NFC antenna and the first tag antenna have the same operating frequency, and through mutual induction, the first tag chip is activated, and the first tag chip transmits the first terminal information to the NFC card reader module; The power cord socket is matched and connected to the power input plug on the electronic device. The second NFC antenna and the second tag antenna have the same operating frequency. Through mutual induction, the second tag chip is activated, and the second tag chip transmits the second terminal information to the NFC card reader module. The processor module obtains the first terminal information and the second terminal information through the NFC card reader module, transmits the first terminal information and the second terminal information to the storage module for storage, and transmits the first terminal information and the second terminal information to the required background server through the communication module.

2. The smart power cord system with NFC function according to claim 1, characterized in that: The first tag chip and the second tag chip are both FM11NT021 tag chips.

3. The smart power cord system with NFC function according to claim 1, characterized in that: The power socket is a wall socket for 220V or 380V AC power in the work area.

4. The smart power cord system with NFC function according to claim 1, characterized in that: The NFC card reading module includes a first NFC module and a second NFC module both connected to the processor module, the first NFC module is connected to a first NFC antenna via a card reading wire, and the second NFC module is connected to a second NFC antenna via a card reading wire.

5. The smart power cord system with NFC function according to claim 1, characterized in that: The NFC card reader module includes an NFC module and a switch module connected in sequence. The input end of the NFC module is connected to the processor module. The switch module is connected to the first NFC antenna and the second NFC antenna respectively through the card reading wire. The processor module controls the switch module to switch between the first NFC antenna and the second NFC antenna by issuing a switching command.

6. The smart power cord system with NFC function according to claim 1, characterized in that: The card reading wire and the conductive wire of the power cable are arranged in parallel and are covered together in the insulation layer of the power cable.

7. The smart power cord system with NFC function according to claim 1, characterized in that: The communication module is a wired network communication module or a wireless network communication module, the wired network communication module is a power carrier communication module, an Ethernet communication module or a serial communication module, and the wireless network communication module is a Bluetooth communication module, a WIFI communication module or a 3G / 4G / 5G communication module.

8. The smart power cord system with NFC function according to claim 1, characterized in that: The first NFC antenna is embedded in the plug protective cover in a winding manner, and the second NFC antenna is embedded in the socket protective cover in a winding manner; the processor module adopts a microcontroller model MS51EC0AE.

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