CN111884683B

CN111884683B - NFC detection system with high credibility perception capability

Info

Publication number: CN111884683B
Application number: CN202010530127.XA
Authority: CN
Inventors: 欧阳聪星; 王海忠; 宋赞
Original assignee: Beijing Qiyu Technology Co Ltd
Current assignee: Beijing Qiyu Technology Co Ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2021-09-21
Anticipated expiration: 2040-06-11
Also published as: CN111884683A

Abstract

The invention discloses an NFC detection system with high credibility perception capability, which is used for recording consumption data of an opening and closing device, wherein the opening and closing device comprises a first part and a second part which are fastened into a whole in advance, the two parts act oppositely, the first part of the opening and closing device is provided with a detection module and a perception unit, the detection module comprises a main control unit, an NFC label unit, a calendar time module and a power supply module, the second part of the opening and closing device is provided with a switch control piece for controlling the on-off of a circuit between the perception unit and the main control unit, the perception unit conducts the circuit between the power supply module and the main control unit after inducing the action of the switch control piece to form a local log record, and the NFC label unit feeds back the local log record of the opening and closing device to an inquiry terminal when receiving an inquiry request of an external NFC inquiry terminal. The invention solves the problem that the original NFC inquiry system can not carry out omnibearing effective recording on the action log of the packaged product.

Description

NFC detection system with high credibility perception capability

Technical Field

The invention relates to the field of anti-counterfeiting information inquiry and detection, in particular to an NFC detection system with high credibility perception capability.

Background

Existing NFC tag circuits can provide a unique RFID (product unique OID) to an interrogating terminal (NFC reader). Based on the read unique RFID, the inquiry terminal can acquire archive information of a product corresponding to the unique RFID on the cloud server. Such as product lot number, date of shipment, product description, etc. The prior art in this respect is the currently used bottle cap with NFC tag circuit for maotai wine bottles. However, the existing NFC tag circuit does not have all-directional sensing capability. The NFC inquiry terminal cannot be informed of whether the package of the product is opened or not, and information such as opening time and geographic position, so that a user cannot accurately master various action events occurring after the opening and closing device leaves a factory.

Disclosure of Invention

Based on the above defects in the prior art, the present invention provides an NFC detection system with high credibility sensing capability to solve the problem that the original NFC query system cannot perform an all-around effective record on the action log of the packaged product.

The technical scheme adopted by the invention is as follows:

an NFC detection system with high credibility sensing capability is used for recording consumption data of an opening and closing device, the opening and closing device comprises a first part and a second part which are fastened into a whole in advance, the first part and the second part act relatively to enable the opening and closing device to be started, the first part of the opening and closing device is provided with a detection module and a sensing unit, the detection module comprises a main control unit, an NFC label unit, a calendar time module and a power module, the power module is electrically connected with the sensing unit, the second part of the opening and closing device is provided with a switch control element for controlling the on-off of a circuit between the sensing unit and the main control unit, the sensing unit enables the circuit between the power module and the main control unit to be conducted after sensing the action of the switch control element and triggers the main control unit to record and store log data of action events and the occurrence time of the action events to form local log records, and when the NFC label unit receives an inquiry request of an external NFC inquiry terminal, the local log record of the opening and closing device is fed back to the inquiry terminal.

Further, the main control unit comprises a CPU chip and a nonvolatile storage subunit, the CPU chip is connected to the calendar time module, the nonvolatile storage subunit and the NFC tag unit through a data line, and the nonvolatile storage subunit is configured to store an action event and a time at which the action event occurs, so as to form the local log record.

Furthermore, the sensing unit is a normally closed switch circuit, one end of the switch circuit is connected with the positive electrode of the power module, the other end of the switch circuit is connected with the power supply pin of the main control unit, the switch circuit is closed after detecting the opening action event of the switch control piece, the circuit between the power module and the main control unit is changed from a disconnected state to a connected state, the CPU chip reads the calendar time information of the calendar time module, and writes the calendar time information into the nonvolatile storage subunit.

Furthermore, the power supply pins of the main control unit include a first power supply pin connected to the sensing unit and a second power supply pin connected to the NFC tag unit, wherein the first power supply pin and the second power supply pin are electrically connected to the CPU chip and the nonvolatile memory subunit through a unidirectional diode, respectively.

Further, the CPU chip detects and determines the level of the first power supply pin at first when powering on each time, where if it is detected that the first power supply pin is at a high level, it is determined that powering on of the main control unit is generated by a first start action event, and if it is detected that the first power supply pin is at a high resistance state or a low level, it is determined that powering on of the main control unit is generated by inductive power of the NFC query terminal.

Furthermore, the detection module further comprises a positioning module and/or a remote communication module which are connected with the CPU chip, the positioning module is used for detecting position data when each action event is triggered and sending the position data to the CPU chip, the CPU chip writes the position data into the nonvolatile storage subunit to form a local log record with the position data, and the remote communication module is used for uploading the local log record to the cloud server.

Further, the switch circuit is a spring contact switch with an insulating sheet, or a magnetic control switch, or a press switch; the nonvolatile storage subunit adopts a FLASH chip with the functions of an OTP register and a LOCK register, or adopts an EPROM storage chip.

Further, the cloud server updates the database of the newly added local log record.

Further, the power module is an energy storage battery; the action event comprises: and (4) opening and closing.

Furthermore, the first part of the opening and closing device is a bottle cap, and the second part of the opening and closing device is a bottle body.

Compared with the prior art, the NFC detection system with high credibility perception capability provided by the invention is used for the whole-course consumption data query of the switching device, and digital local log records which are difficult to erase are left in the local digital storage space as long as the device is once opened. When the NFC inquiry terminal carries out inquiry operation on the NFC label circuit, an action event log which is generated by the device once can be read from the digitized local log record, wherein the action event log comprises action content (opening action and closing action), calendar time when the action occurs and geographical position when the action occurs. The detection system can also upload the digital local log records to the cloud server through remote communication, so that the cloud also has action event logs which occur once by the device, and subsequent tracking query and consumption big data operation are facilitated.

Drawings

Fig. 1 is a schematic structural diagram of an NFC detection system in an embodiment of the present invention.

Fig. 2 is a schematic diagram of another structure of the NFC detection system in the embodiment of the present invention.

Fig. 3 is a circuit diagram of a power supply of the main control unit according to an embodiment of the present invention.

Fig. 4(a) is a schematic diagram of the dome contact switch according to the embodiment of the present invention when the dome contact switch is turned off.

Fig. 4(b) is a schematic diagram of the dome contact switch according to the embodiment of the present invention.

Fig. 5(a) is a schematic diagram of the magnetic switch according to the embodiment of the present invention when the magnetic switch is turned off.

Fig. 5(b) is a schematic diagram of the magnetic switch according to the embodiment of the present invention when it is turned on.

Fig. 6(a) is a schematic diagram of the push switch in the embodiment of the present invention when it is turned off.

Fig. 6(b) is a schematic diagram of the push switch according to the embodiment of the present invention when it is turned on.

Detailed Description

The present invention will be described in further detail below with reference to the accompanying drawings, but the present invention is not limited thereto.

Referring to fig. 1 and 2 in a matching manner, an embodiment of the present invention provides an NFC detection system with a high credibility sensing capability, which is used for recording consumption data of an opening and closing device, where the opening and closing device includes an article, such as a wine bottle, a beverage bottle, a cosmetic packaging box, or other valuable packaging box, that is composed of a movable portion and a fixed portion and has two states of opening and closing, and the opening and closing device includes a first portion and a second portion that are fastened in advance into a whole, where the first portion and the second portion act relatively to enable the opening and closing device to be opened.

The bottle cap is internally provided with a detection module, the detection module comprises a main control unit, an NFC label unit, a calendar time module and a power module, the main control unit is mainly used for operation processing and storage of relevant data, the calendar time module is used for providing time for action events, the power module is used for providing power needed by circuit work, and the NFC label unit is used for data interaction with an external NFC inquiry terminal with a label reader. The bottle cap is also internally provided with a sensing unit, a switch control piece for controlling the on-off of a circuit between the sensing unit and the main control unit is arranged in a fixed part, namely the bottle body, and the switch control piece and the sensing unit have certain coupling property and can be synthesized into a sensing module for explaining, the sensing module not only senses whether an opening or closing action event exists, but also has the function of a power switch based on the structural characteristic of the sensing module, the sensing unit leads the circuit between the power module and the main control unit to be conducted and triggers the main control unit to execute a corresponding processing program, including recording and storing log data of the action event and the occurrence time of the action event after sensing the action of the switch control piece, then forming local log record storage, and when the NFC label unit receives an inquiry request of an external NFC inquiry terminal, the local log record stored by the opening and closing device is fed back to the inquiry terminal, thus, the inquiry terminal can know the action event record of the wine bottle.

In this embodiment, the sensing unit is a normally closed type motion sensing switch, and the motion sensing switch may be implemented in various forms, such as a spring contact switch with an insulating sheet shown in fig. 4(a) and 4(b), a magnetic control switch shown in fig. 5(a) and 5(b), and a push switch shown in fig. 6(a) and 6 (b). The action perception switch can change the switch state of the action perception switch under the interference action of external force (such as rotation, pressing and the like). When the openable device leaves the factory, the system is in a closed state, the bottle body and the bottle cap are tightly connected into a whole, at the moment, the action sensing switch is switched on and off as a normally closed switch, and the circuit is in an open circuit state. Since openable and closable devices such as wine bottles, beverage bottles, cosmetic packaging cases, valuables packaging cases, etc., are opened from the factory, a long closing process may be experienced. The normally closed switch is used as a power switch of an embedded circuit (except a calendar time module), so that the electric energy of the battery can be effectively saved.

Referring to fig. 4(a) and 4(b), the operation sensing switch is a dome contact switch with an insulating sheet, and is used for sensing an opening operation event at one time and also serves as a power supply switch of the embedded circuit. When the openable device leaves a factory, the system is in a closed state, and the bottle body of the fixed part is tightly connected with the bottle cap of the movable part. One end of an insulating sheet of the sensing switch is fixedly connected to the bottle body, and the other end of the insulating sheet is located between the two elastic sheet contacts, so that the contacts are insulated. At the moment, the sensing switch is switched on and off as a normally closed switch, the embedded circuit is in an open circuit state, and the CPU of the detection module is powered down.

After the openable device leaves a factory, when the openable device is opened for the first time, the bottle body of the fixed part and the bottle cap of the movable part are subjected to relative displacement, and the insulating sheet of the sensing switch is pulled and is pulled away from the elastic sheet contact. The two elastic sheet contacts are contacted, the normally closed switch is closed, and the battery of the power supply module supplies power to the embedded circuit, so that the CPU of the detection module is electrified to execute a corresponding recording program.

Referring to fig. 5(a) and 5(b), the motion sensing switch is a magnetic control switch (or called reed switch) for sensing a bottle cap motion event and also serving as a power supply switch of the embedded circuit. The magnetic control switch driving part is a magnet NS, and the normally closed magnetic control switch sensing part is a single-reed-tube magnetic control switch K1. When the openable device leaves a factory, the system is in a closed state, and the bottle cap is tightly connected with the bottle body. The magnet NS is close to the magnetic switch sensing part, so that the switch K1 is disconnected, the power supply loop of the embedded circuit is cut off, and the CPU is powered off. Compared with the prior elastic sheet contact switch with the insulating sheet, the magnetic control switch can repeatedly sense opening and closing action events.

After the opening and closing device leaves the factory, as long as the device is opened, the bottle cap and the bottle body generate relative displacement, the magnet is far away from the magnetic control switch sensing part, the switch K1 is closed, the battery of the power supply module supplies power to the embedded circuit, and the CPU of the detection module is electrified.

Referring to fig. 6(a) and 6(b), the motion sensing switch is a push switch, and the push switch includes a push force application portion and a push sensing portion, and may be a normally closed microswitch or a normally closed membrane switch. The movable part of the packaged device is provided with a pressing force application part and a pressing sensing part in a fixed part. Or the fixed part is provided with pressing force, and the movable part is used for pressing sensing. The pressing force application subunit can be a plane where the bottle cap is contacted with the bottle body when the packaging subsystem is in a packaging state, and can also be a micro-arched bulge matched with the shape of a pressing switch in the pressing sensing subunit. Wherein the push switch can repeatedly sense opening and closing events, as compared to previous dome contact switches with insulating sheets.

When the openable device leaves a factory, the device is in a closed state, and the bottle body of the device is tightly connected with the bottle cap. After the switch of the pressing sensing part is pressed by the pressing force, the switch K1 is disconnected, the power supply loop of the embedded circuit is cut off, and the CPU is powered off.

After the opening and closing device leaves a factory, as long as the device is opened, the bottle body of the fixed part of the device and the bottle cover of the movable part of the device are relatively displaced, the pressing force application subunit is separated from the pressing sensing subunit, the switch K1 is closed, the battery of the power supply module supplies power to the embedded circuit, and the CPU is powered on.

Referring to fig. 1 and 2, in order to implement the motion sensing record of the sensing module, a detection module is disposed on a fixed portion of the opening and closing device, that is, the bottle body in this embodiment, and the detection module includes: the NFC tag comprises a main control unit, an NFC tag unit, a calendar time module and a power supply module, wherein the main control unit is respectively connected with the calendar time module and the NFC tag unit through data lines so as to receive and process related data.

The power module is a built-in direct current power supply, such as an energy storage battery, and further can be a button battery, the nominal voltage is 3V, the nominal capacity is 150mAh, and the maximum size (diameter x thickness) is 20mm x 2.5 mm. Currently, conventional NFC tag circuits may not require a power supply module containing an energy storage battery. When the NFC reader is close to the NFC tag circuit, the NFC tag circuit obtains power from the NFC reader through wireless induction. However, if the product is turned on, the corresponding action time cannot be recorded because the NFC tag circuit close to the opening and closing device is not sensed by the NFC of the inquiry terminal. The invention records the corresponding action event log when the opening and closing device has the action event through the built-in energy storage battery.

The energy storage battery is also connected with the sensing unit, the sensing unit is a normally closed switch circuit, one end of the switch circuit is connected with the positive electrode of the power module, and the other end of the switch circuit is connected with the power supply pin of the main control unit. In an initial state, the circuit is blocked and the embedded circuit does not work because the sensing module is closed; when the bottle cap is opened, the sensing unit is closed after sensing the opening action of the switch control piece, so that a circuit between the power supply module and the main control unit is changed from a disconnection state to a conduction state, the main control unit is triggered to record and store log data of action events and action event occurrence time to form a local log record, and the calendar time module provides specific time points of the action events, wherein the calendar time module can adopt a DS1302 calendar time chip, and the low-power consumption real-time clock chip is provided. It can time year, month, day, hour, minute and second and has leap year compensation function. In addition, the calendar time unit is always connected with the power supply module and is not controlled by the action sensing switch, so that accurate calendar time is maintained.

In this embodiment, the detection module can also include a positioning module and a remote communication module that are connected with the CPU chip, the positioning module is used for detecting position data when an action event is triggered each time and sending the position data to the main control unit, and the remote communication module is used for uploading a local log record to the cloud server. The positioning module can adopt a GPS or Beidou satellite positioning signal receiver, and the remote communication module can also be used as the positioning module by providing CELL-ID data as position information. The remote communication module can adopt an NB-IOT communication module. And the cloud server synchronously updates the database for the newly added local log record, so that the cloud also has the action event log which is generated by the device once, and subsequent tracking query and big data operation are facilitated.

In this embodiment, the main control unit specifically includes a CPU chip and a nonvolatile memory subunit. The CPU chip is connected with the nonvolatile storage subunit, the calendar time module, the NFC label unit, the positioning module and the remote communication module through data lines, and is responsible for receiving sensing signals, acquiring calendar time, position information, writing log data, initiating remote communication and the like. The nonvolatile storage subunit is used for storing corresponding action events, the time of the action events and the geographic positions, and forming local log records. The specific hardware of the nonvolatile memory subunit can be a FLASH chip with the functions of an OTP register and a LOCK register, or an EPROM memory chip, which all communicate through an extended data interface of the CPU chip.

When the NFC tag unit receives an inquiry request of an external NFC inquiry terminal, the log record of the opening and closing device is fed back to the inquiry terminal, and the electronic tag information of the opening and closing device and the occurring action log record, such as whether the opening is finished, the opening time, the opening position and the like, can be known through the inquiry terminal. The NFC label unit comprises an NFC antenna, an NFC radio frequency interface subunit and an NFC digital function subunit of a conventional NFC label circuit. The NFC antenna is based on the RFID technology, generally consists of ferrite materials and circuit coils, interacts with an NFC reader by adopting a transformer co-coupling matching principle, is matched with an NFC radio frequency interface subunit, and provides wireless power supply and near field data communication functions for an embedded circuit during the reading interval of the NFC reader (an inquiry terminal NFC module). And the NFC radio frequency interface subunit is matched with the radio frequency antenna unit to complete related functions of NFC radio frequency and provide electric energy for each part of the related NFC circuit. And the NFC digital function subunit is matched with the NFC radio frequency interface subunit and the CPU chip to complete a plurality of digital functions required by NFC communication.

In fact, since there is usually no inquiry terminal when the action event occurs, the circuit of the main control unit cannot sense and obtain power. Therefore, the main control unit in the invention not only supports the induction of obtaining power supply from the NFC inquiry terminal, but also expands the power supply port to support the battery power supply of the slave power supply module.

The CPU chip detects and judges the level of a power supply pin firstly when being powered on every time, if the power supply pin Q is detected to be high level, the switching device is judged to be powered on by a starting action event, and if the power supply pin Q is detected to be in a high resistance state (or low level), the switching device is judged to be powered on by induction electric energy of the NFC inquiry terminal.

For example, for a circuit portion in which the battery supplies power after the opening and closing device is opened, the power supply mode of the main control unit is as follows (taking a dome contact switch as an example):

1. when the system leaves a factory, the bottle cap is not opened, the insulating sheet is not pulled, the elastic sheet contact is broken, and the embedded circuit is not powered except for the calendar time unit. When the NFC induction area of the inquiry terminal is close to the embedded circuit, the parts, such as the main control unit and the like, outside the calendar time unit obtain power supply through NFC wireless induction.

2. After the bottle cap is opened, the insulating sheet is pulled, the elastic sheet contact is connected, and the main control unit is powered by the battery of the power module until the stored energy of the battery is exhausted.

3. After the battery energy storage is exhausted, if the NFC induction area of the inquiry terminal is close to the embedded circuit, the main control unit obtains power supply through NFC wireless induction.

For the embedded circuit with the battery always supplying power, the power supply mode of the main control unit is as follows:

1. after the system leaves the factory, the main control unit is always powered by the battery of the power module until the stored energy of the battery is exhausted.

2. After the battery energy storage is exhausted, if the NFC induction area of the inquiry terminal is close to the embedded circuit, the main control unit obtains power supply through NFC wireless induction.

Referring to fig. 3, since there are two power supply modes of the main control unit, in this case, cooperation is required. In this embodiment, the power supply pin of the main control unit includes a first power supply pin Q connected to the sensing unit and a second power supply pin P connected to the NFC tag unit, where the first power supply pin Q and the second power supply pin P are electrically connected to the CPU chip and the nonvolatile memory subunit through a unidirectional diode, respectively, and the port Q (connected to the positive electrode of the battery of the power module) and the port P (connected to the positive electrode of the NFC functional module) of the main control unit are electrically isolated by providing two unidirectional diodes.

The CPU chip detects and judges the level of the first power supply pin when being powered on every time, wherein if the first power supply pin is detected to be high level, the main control unit is judged to be powered on due to a starting action event, and if the first power supply pin is detected to be high-resistance state or low level, the main control unit is judged to be powered on due to induction electric energy of the NFC inquiry terminal.

The working process of the NFC detection system with high credibility perception capability in the embodiment of the invention is as follows:

1) when the device is shipped, the device OID (i.e., the device unique RFID) is written in the memory module of the NFC tag unit.

2) When the device generates an action event, the CPU is triggered to execute a corresponding action event response processing program. And the CPU logs the current action event and writes the current action event into a log storage module. The data content of the log record comprises the name of the action (opening action or closing action), the calendar time when the action occurs and the geographical position where the action occurs, thereby forming a new piece of local log data. Further, the CPU can upload local log data to the cloud server through remote communication to establish a cloud log.

3) When the querying terminal (consumer handset) NFC sensing area is close to the device NFC antenna, the following actions are triggered:

and 3.1) the NFC antenna of the device is excited by the NFC induction area of the inquiry terminal to generate induction current, and the NFC module supplies power to the embedded circuit.

3.2) the CPU of the embedded circuit is powered on and started.

3.3) the CPU reads the local log data in the log storage module.

And 3.4) the CPU makes the RFID and the local log data in the bottle cap into an inquiry feedback message and transmits the inquiry feedback message to the NFC module.

And 3.5) modulating the inquiry feedback message into a radio frequency signal by the NFC module, and transmitting the radio frequency signal through an antenna.

4) The query terminal APP reads a query feedback message sent by the embedded circuit of the device through the NFC reader of the mobile phone, wherein the query feedback message comprises the RFID and local log data. The local log data contains the content (such as opening, closing), time (optional) and place (optional) of each action event of the device.

5) After receiving the data sent by the embedded circuit of the device, the query terminal APP does not decode and transmits the data to the cloud server through the Internet.

6) The cloud server reads the query feedback message, and extracts device RFID and local log data from the query feedback message.

7) The cloud server queries the database according to the RFID, accesses product archive information corresponding to the RFID, and completes data synchronization of the cloud log and the local log. Specifically, the cloud server compares the extracted local log data with the cloud log data. And if the local log contains data entries which the cloud log does not have, the cloud server supplements the cloud log so as to keep all the data entries of the cloud log consistent with the local log.

8) The cloud server performs the following operations according to the log data of the device:

8.1) if the number of the action log entries in the log data is zero, that is, the device has no action event or has no opening action event in each action log entry; meanwhile, the corresponding encapsulation attribute flag of the cloud archive of the device takes the value of 'unchanged'; then, the cloud server maintains the value of the corresponding encapsulation attribute flag of the cloud file of the device unchanged.

8.2) if the log data has an opening action event; meanwhile, the corresponding encapsulation attribute flag of the cloud archive of the device takes the value of 'unchanged'; then, the cloud server sets the value of the corresponding encapsulation attribute flag of the cloud file of the device to be changed.

8.3) if the log data has an opening action event; meanwhile, the corresponding encapsulation attribute flag of the cloud archive of the device takes the value of changed; then, the cloud server maintains the value of the corresponding encapsulation attribute flag of the cloud file of the device as changed.

8.4) if the number of the action log entries in the log data is zero, that is, the device has no action event or has no opening action event in each action log entry; meanwhile, the corresponding encapsulation attribute flag of the cloud archive of the device takes the value of changed; then, the cloud server maintains the value of the corresponding encapsulation attribute flag of the cloud file of the device as "changed" unchanged. The cloud server sets the corresponding packaging history mark of the cloud archive of the device as abnormal, and sends the abnormal event to the system management platform as an alarm message.

9) The cloud server sends the cloud files (including cloud log data) of the device to the query terminal as cloud feedback messages.

10) And the inquiry terminal receives the cloud feedback message sent by the cloud server.

11) And the inquiry terminal reads the cloud file of the device in the cloud feedback message and displays the related content on the human-computer interface.

According to the invention, through innovative design, the NFC tag circuit has a special high credibility recording capability: once this device has been turned on, it leaves a digital local log record in the local digital storage space (log storage module) that is difficult to erase. In future, when the NFC query terminal performs a query operation on the NFC tag circuit, an action event log that has occurred in the device may be read from the digitized local log record, where the action event log includes action content (opening action and/or closing action), a calendar time when the action occurred, and a geographic location where the action occurred. In addition, the system can upload the digital local log records (local logs) to the cloud server through remote communication, so that the cloud also has action event logs (cloud logs) which occur once by the device.

It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereby, and the present invention can also be modified equivalently in the structure of the above-mentioned various components. Therefore, structural equivalents made by using the description and drawings of the present invention or by directly or indirectly applying to other related arts are also encompassed within the scope of the present invention.

Claims

1. An NFC detection system with high credibility perception capability is used for recording consumption data of an opening and closing device, the opening and closing device comprises a first part and a second part which are fastened into a whole in advance, the first part and the second part act relatively to enable the opening and closing device to be started, the NFC detection system is characterized in that the first part of the opening and closing device is provided with a detection module and a perception unit, the detection module comprises a main control unit, an NFC label unit, a calendar time module and a power module, the power module is electrically connected with the perception unit, the second part of the opening and closing device is provided with a switch control piece for controlling the on-off of a circuit between the perception unit and the main control unit, the perception unit conducts the circuit between the power module and the main control unit after sensing the action of the switch control piece and triggers the main control unit to record and store log data of action events and the occurrence time of the action events to form local log records, when the NFC tag unit receives an inquiry request of an external NFC inquiry terminal, the local log record of the switching device is fed back to the inquiry terminal;

the main control unit comprises a CPU chip and a nonvolatile storage subunit, the CPU chip is connected with the calendar time module, the nonvolatile storage subunit and the NFC label unit through data lines, and the nonvolatile storage subunit is used for storing action events and the time of the action events to form the local log record;

the sensing unit is a normally closed switch circuit, one end of the switch circuit is connected with the anode of the power module, the other end of the switch circuit is connected with the power supply pin of the main control unit, the switch circuit is closed after detecting an opening action event of the switch control piece, a circuit between the power module and the main control unit is changed from a disconnected state to a connected state, the CPU chip reads calendar time information of the calendar time module, and writes the calendar time information into the nonvolatile storage subunit;

the power supply pins of the main control unit comprise a first power supply pin connected to the sensing unit and a second power supply pin connected to the NFC label unit, wherein the first power supply pin and the second power supply pin are electrically connected to the CPU chip and the nonvolatile storage subunit through unidirectional diodes respectively;

the CPU chip detects and judges the level of the first power supply pin at first when being powered on every time, wherein if the first power supply pin is detected to be high level, the main control unit is judged to be powered on due to a first starting action event, and if the first power supply pin is detected to be in a high resistance state or a low level, the main control unit is judged to be powered on due to induction electric energy of the NFC inquiry terminal.

2. The NFC detection system of claim 1, wherein the detection module further comprises a location module and/or a remote communication module connected to the CPU chip, the location module is configured to detect and send location data to the CPU chip when each action event is triggered, the CPU chip writes the location data into the nonvolatile storage subunit to form a local log record with the location data, and the remote communication module is configured to upload the local log record to a cloud server.

3. The NFC detection system of claim 2, wherein the switch circuit is a dome contact switch with an insulating sheet, or a magnetic control switch, or a push switch; the nonvolatile storage subunit adopts a FLASH chip with the functions of an OTP register and a LOCK register, or adopts an EPROM storage chip.

4. The NFC detection system of claim 3, wherein the cloud server further updates a database of newly added local log records.

5. The NFC detection system of claim 1, wherein the power module is an energy storage battery; the action event comprises: and (4) opening and closing.

6. The NFC detection system of claim 1, wherein the first portion of the opening and closing device is a bottle cap and the second portion is a bottle body.