CN115864676A

CN115864676A - Micro-energy collection method and passive electronic equipment

Info

Publication number: CN115864676A
Application number: CN202211616208.7A
Authority: CN
Inventors: 欧阳红军
Original assignee: Shenzhen Meikai Innovation Technology Co ltd
Current assignee: Shenzhen Meikai Innovation Technology Co ltd
Priority date: 2022-09-13
Filing date: 2022-12-15
Publication date: 2023-03-28
Also published as: CN115987316A; CN116015337A; WO2024055532A1; CN117714982A; CN115800562A; CN115986948A

Abstract

The application provides a micro-energy collection method and passive electronic equipment, wherein the micro-energy collection method comprises the following steps: the micro energy source signal in the space is received, the frequency of the micro energy source signal with specific frequency is locked, and the micro energy source signal after the frequency locking is converted into electric energy. Based on this, the micro-energy acquisition method can convert micro-energy signals into electric energy quickly and in a self-adaptive manner, and can realize passive work.

Description

Micro-energy collection method and passive electronic equipment

The present application claims priority of chinese patent application entitled "passive electronic device, micro-energy collection method, and energy storage method" filed by chinese patent office on 09/13/2022 with application number 202211119234.9, which is incorporated herein by reference in its entirety.

Technical Field

The present disclosure relates to the field of electronic technologies, and in particular, to a micro-energy collection method and a passive electronic device.

Background

With the gradual maturity of information technology, internet of things communication based on people and objects is rapidly developed and widely applied, and electronic devices such as electronic tags are very important devices in internet of things communication.

Electronic equipment in the related art needs to be attached to a battery for supplying power to maintain a working state, the battery can challenge the structure of the electronic equipment, such as a waterproof structure, the production cost of the electronic equipment and the maintenance cost of battery loss can be increased, and meanwhile, the waste battery can also bring environmental protection problems and influence the daily life level of people.

Disclosure of Invention

The application provides a micro-energy collection method and passive electronic equipment, the micro-energy collection method can collect wireless radio frequency micro-energy in a free space to realize power supply, and the method can be powered without batteries.

In a first aspect, the present application provides a micro-energy collection method, including:

receiving a micro-energy signal in a space;

and carrying out frequency locking on the micro-energy source signal with the specific frequency, and converting the micro-energy source signal after frequency locking into electric energy.

In some embodiments, the frequency-locking the micro-energy source signal with a specific frequency and converting the frequency-locked micro-energy source signal into electric energy includes:

converting the micro-energy source signal into a digital signal;

carrying out frequency locking on the digital signal with the specific frequency;

and performing gain amplification on the frequency-locked digital signal and forming electric energy.

frequency locking is carried out on the micro energy source signal with specific frequency, and the micro energy source signal after frequency locking is divided into an energy frequency band signal and a communication frequency band signal;

converting at least one of the energy band signal and the communication band signal into electrical energy.

In some embodiments, the frequency locking the micro-energy source signal of the specific frequency includes:

and when the interference is detected, carrying out frequency locking on the micro energy source signal of another specific frequency.

In some embodiments, the converting the frequency-locked micro-power signal into electric energy includes:

converting the micro energy source signal after frequency locking into a micro current signal;

and converting the micro-current signal into the stably output polymerization electric energy.

In some embodiments, the converting the micro-current signal into the stable output of the aggregated electrical energy comprises:

collecting and mixing micro-current signals in a preset unit time length into a group;

and extracting the micro-current signals with the similar characteristic points in each group to obtain a nominal value, and enabling the micro-current signals after the nominal value is extracted to form stable output polymerization electric energy.

In a second aspect, the present application also provides a passive electronic device comprising:

and the wireless receiving module is used for receiving the micro energy source signals in the space, carrying out frequency locking on the micro energy source signals with specific frequency and converting the micro energy source signals after frequency locking into electric energy.

In some embodiments, the wireless receiving module comprises:

the receiving antenna unit is used for receiving micro-energy source signals in the space;

the radio frequency identification unit is electrically connected with the receiving antenna unit and is used for converting the micro-energy source signal into a digital signal and locking the frequency of the digital signal with specific frequency; and

and the electric energy control unit is electrically connected with the radio frequency identification unit and is used for receiving the digital signal after frequency locking, carrying out gain amplification on the digital signal after frequency locking and forming electric energy.

In some embodiments, the radio frequency identification unit is further configured to: and when the interference is detected, the frequency of the micro-energy source signal of another specific frequency is locked.

In some embodiments, the wireless receiving module is configured to convert the frequency-locked micro-energy source signal into a micro-current signal; the passive electronic device further comprises:

and the electric energy management module is electrically connected with the wireless receiving module and is used for receiving the micro-current signals and converting the micro-current signals into stably output aggregated electric energy.

The micro-energy collection method and the passive electronic equipment comprise the following steps: receiving a micro-energy signal in a space; and carrying out frequency locking on the micro energy source signal with the specific frequency, and converting the micro energy source signal after frequency locking into electric energy. Based on this, the micro-energy collection method of the application can grab the wireless signals in the space, lock the frequency of the wireless signals with specific frequency and convert the wireless signals after the frequency locking into electric energy. Therefore, on one hand, the micro-energy collection method does not need a traditional battery for power supply, and zero-power wireless radio frequency communication can be achieved; on the other hand, the micro-energy collection method can perform self-adaptive capture according to the frequency of the micro-energy scattered and transmitted in the space, can actively perform accurate identification capture in the micro-energy of multiple frequency bands (such as 800MHz to 2.4 GHz), and can improve the sensitivity and efficiency of receiving wireless signals; in another aspect, the micro-energy collection method in the embodiment of the present application can also be adaptive to micro-energy in a wider frequency band, so that the application scenarios of the micro-energy collection method in the embodiment of the present application are wider.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic flowchart of a first micro-energy collection method according to an embodiment of the present disclosure.

Fig. 2 is an application scenario diagram of the micro-energy collection method shown in fig. 1.

Fig. 3 is a schematic flowchart of a second micro energy collecting method according to an embodiment of the present disclosure.

Fig. 4 is a schematic structural diagram of a passive electronic device according to an embodiment of the present application.

Fig. 5 is a first structural diagram of the wireless receiving module shown in fig. 4.

Fig. 6 is a schematic structural diagram of the rfid unit shown in fig. 5.

Fig. 7 is a second structural diagram of the wireless receiving module shown in fig. 4.

Fig. 8 is a schematic diagram of a structure of the power control unit shown in fig. 7.

Fig. 9 is a schematic structural diagram of a second passive electronic device according to an embodiment of the present application.

Fig. 10 is a schematic structural diagram of a third passive electronic device according to an embodiment of the present application.

Fig. 11 is a schematic diagram of a first structure of the power management module shown in fig. 9.

Fig. 12 is a schematic diagram of an electrical connection of the power management module of fig. 11.

Fig. 13 is a schematic diagram of a fourth structure of a passive electronic device according to an embodiment of the present application.

Fig. 14 is a schematic diagram of a second configuration of the power management module shown in fig. 9.

Fig. 15 is a schematic diagram of a third structure of the power management module shown in fig. 9.

Fig. 16 is a schematic diagram of a structure of the amplifying unit shown in fig. 11.

Fig. 17 is a fifth structural schematic diagram of a passive electronic device according to an embodiment of the present application.

Fig. 18 is a sixth structural schematic diagram of a passive electronic device according to an embodiment of the present application.

Fig. 19 is a schematic diagram of a seventh structure of a passive electronic device according to an embodiment of the present application.

Fig. 20 is an eighth structural schematic diagram of a passive electronic device according to an embodiment of the present application.

Fig. 21 is a schematic electrical connection diagram of the passive electronic device shown in fig. 20.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to fig. 1 to 21 in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The embodiment of the application provides a micro-energy collection method and passive electronic equipment. The micro-energy collection method can be applied to the passive electronic equipment in the embodiment of the application, can also be applied to one or more modules in the passive electronic equipment, such as a wireless receiving module of the passive electronic equipment, and can also be applied to other equipment; the embodiment of the application does not limit the execution main body of the micro-energy collection method. The passive electronic equipment can adopt a microwave space scattering principle, follows the law of conservation of energy, identifies various weak nanoampere-level current electromagnetic wave signals wirelessly scattered by various emitting sources in the air, effectively captures the micro energy, accurately compares the micro energy through an acquisition algorithm chip, stores the micro energy in an energy storage medium, effectively stores the micro energy in all operation units, forms a large energy pool after accumulating day and month, so that various intelligent node terminal equipment with extremely low power consumption continuously performs navigation work, and various Internet of things equipment can really achieve self-adaptive intelligent work without batteries and maintenance. It can be understood that the passive electronic device in the embodiment of the present application may be an electronic tag device, and may also be, but is not limited to, a passive lock, a passive umbrella, and the like, and the specific structure and the specific form of the passive electronic device are not limited in the embodiment of the present application.

Referring to fig. 1, fig. 1 is a schematic flow chart of a micro-energy collection method according to an embodiment of the present disclosure. The micro-energy collection method comprises the following steps:

receiving a micro-energy source signal in a space in 101;

the micro-energy signal can be various weak nano-ampere current electromagnetic wave signals of various emission sources wirelessly scattered in the air. For example, referring to fig. 2, fig. 2 is a diagram of an application scenario of the micro energy collection method shown in fig. 1. In our daily life space, there may be various radio electromagnetic wave scattering around. Such as, but not limited to, wireless Fidelity (Wi-Fi) signals at home, bluetooth Low Energy (BLE) signals around a shared bicycle, 3rd-Generation (3G) signals of a communication base station, 4th-Generation (4G) signals, 5th-Generation (5G) signals of a communication base station, and the like, and these Wireless signals or micro-Energy sources with different frequencies can operate in the same space in real time. The micro-energy collection method in the embodiment of the application can collect or acquire the wireless signals or micro-energy in the space, for example, but not limited to, the micro-energy collection method in the embodiment of the application can receive micro-energy signals in the range of about 800MHz to 2.4GHz in the space.

It can be understood that the micro-energy source collecting method according to the embodiment of the present application can control the relevant module of the passive electronic device to receive the wireless signal or the micro-energy source signal in the space, for example, but not limited to, can control the wireless receiving module of the passive electronic device to receive the wireless signal or the micro-energy source signal in the space. Of course, when the micro energy source acquisition method of the embodiment of the present application is applied to other devices, the micro energy source acquisition method may also control the other devices to receive micro energy source signals in the space. The embodiment of the present application does not limit the specific execution main body of the micro energy source signal in the receiving space.

It should be noted that the concepts of the wireless signal and the micro energy source in any embodiment of the present application may be interchanged, that is, the expression "wireless signal" in the embodiment of the present application may be replaced by the expression "micro energy source", and detailed description is not provided herein.

At 102, frequency locking is performed on the micro energy source signal with the specific frequency, and the frequency-locked micro energy source signal is converted into electric energy.

The micro-energy source acquisition method provided by the embodiment of the application can receive micro-energy source signals in a space, lock frequency of the micro-energy source signals with specific frequency (including electric signals corresponding to the micro-energy source signals), and convert the micro-energy source signals after frequency locking (including the electric signals corresponding to the micro-energy source signals) into electric energy signals. The electric energy signal can be used for but not limited to work of an execution main body of the micro energy collection method in the embodiment of the application, so that the execution main body of the micro energy collection method can receive the micro energy signal in the space again, an effective positive feedback mechanism can be formed by the micro energy collection method in the embodiment of the application, and the execution main body of the whole micro energy collection method can finish the collection work of micro energy without battery or power excitation. Certainly, the electric energy signal can also be supplied to other energy-requiring devices to work, and the execution main body of the micro energy acquisition method can be electrically connected with the energy-requiring devices, so that the energy-requiring devices can receive the electric energy signal transmitted by the execution main body of the micro energy acquisition method. The specific application of the electric energy signal acquired by the micro-energy acquisition method is not limited in the embodiment of the application.

It can be understood that the micro-energy collection method of the embodiment of the application can capture micro-energy of different frequencies of scattering propagation in space. Since the radio frequency signals are scattered in the surrounding environment when being transmitted in the space, the radio frequency signals cannot be seen and touched by the eyes of a person in the conventional art, and various radio frequency signals doped in the complex environment cannot be identified. According to the micro-energy collection method, the specific frequency signal can be searched at the highest speed, and the specific frequency signal can be subjected to frequency locking, so that the interference of other wireless signals can be eliminated, and the efficiency of converting the micro-energy signal into electric energy can be improved.

It is understood that the specific frequency for performing the frequency locking operation may be a preset frequency. The micro-energy source acquisition method can identify, divide frequency and analyze received micro-energy source signals, and grab out signals with specific frequency to carry out frequency locking operation. Of course, the specific frequency when the frequency locking operation is performed may also be a frequency that is determined adaptively after the micro energy acquisition method analyzes the received micro energy signal. For example, the micro energy acquisition method may identify a signal with the optimal signal intensity and the better gain effect in the micro energy signal, further perform frequency locking on the micro energy signal with the specific frequency by using the frequency of the identified signal as the specific frequency, and convert the frequency-locked micro energy signal into the electric energy signal.

It should be noted that, the above is merely an exemplary example of the micro energy collecting method according to the embodiment of the present application, and the micro energy signal with a specific frequency is frequency-locked, and is not limited thereto. All schemes capable of performing frequency locking operation are within the protection scope of the embodiment of the application.

It should be noted that, in the step of performing frequency locking on the wireless signal or the micro energy source with a specific frequency and converting the frequency-locked wireless signal or the micro energy source into the micro current signal or the electric energy signal, the object targeted by the method in this step is not limited to the wireless signal or the micro energy source with the specific frequency and the frequency-locked wireless signal or the micro energy source, and may also be a current signal corresponding to the wireless signal or the micro energy source with the specific frequency, such as an analog signal, and a current signal corresponding to the frequency-locked wireless signal or the micro energy source, such as a digital signal. In other words, the operation correspondence of the two steps in the method of the embodiment of the present application is not limited to the wireless signal and the micro energy source, and may further include a current signal corresponding to the wireless signal and the micro energy source.

The micro-energy collection method of the embodiment of the application comprises the following steps: receiving a micro-energy signal in a space; and carrying out frequency locking on the micro energy source signal with the specific frequency, and converting the micro energy source signal after frequency locking into electric energy. Based on this, the micro-energy collection method of the embodiment of the application, on one hand, can enable the execution main body to be powered without a traditional battery, and can achieve zero-power wireless radio frequency communication; on the other hand, the micro-energy collection method can perform self-adaptive capture according to the frequency of micro-energy scattered and transmitted in the space, can actively perform accurate identification capture in multi-band (for example, 800MHz to 2.4 GHz) micro-energy, and can improve the sensitivity and efficiency of receiving wireless signals; in another aspect, the micro-energy collection method in the embodiment of the present application can also be adaptive to micro-energy in a wider frequency band, so that the application scenarios of the micro-energy collection method in the embodiment of the present application are wider.

In some embodiments, in step 102, frequency-locking the micro-energy source signal with a specific frequency, and converting the frequency-locked micro-energy source signal into electric energy includes: converting the micro-energy source signal into a digital signal; carrying out frequency locking on the digital signal with the specific frequency; and performing gain amplification on the frequency-locked digital signal and forming electric energy.

According to the micro-energy collection method, the micro-energy signals are converted into the digital signals, so that the parameters such as the frequency and the waveform of the digital signals can be identified more conveniently, and the frequency locking operation of the digital signals with specific frequency can be performed more conveniently. And the digital signal after frequency locking is subjected to gain amplification, so that the electric energy converted by the micro-energy source signal is stronger, and the efficiency of converting the micro-energy source into the electric energy is improved. It should be noted that the micro energy acquisition method according to the embodiment of the present application may also perform frequency locking on the micro energy signal with a specific frequency and convert the micro energy signal into electric energy in other manners, and the embodiment of the present application does not limit the specific implementation scheme of the step.

In some embodiments, the frequency-locking the micro-energy source signal with a specific frequency in step 102, and converting the frequency-locked micro-energy source signal into electric energy includes: carrying out frequency locking on the micro-energy source signal with specific frequency, and dividing the micro-energy source signal after frequency locking into an energy frequency band signal and a communication frequency band signal; converting at least one of the energy band signal and the communication band signal into electric energy. In some embodiments, the micro-energy harvesting method further comprises: and transmitting the wireless signal by utilizing the communication frequency band signal.

The micro-energy acquisition method in the embodiment of the application can receive micro-energy signals (for example, but not limited to, signals including 915MHz frequency band) of an energy frequency band in a space, and can also receive micro-energy signals (for example, but not limited to, signals including 2.4GHz frequency band) of a communication frequency band in the space; the micro energy source acquisition method can carry out frequency locking and frequency division on the two micro energy source signals. In addition, the micro-energy collection method of the embodiment of the application can convert the energy frequency band signal or the communication frequency band signal into electric energy, and can also convert the energy frequency band signal and the communication frequency band signal into electric energy at the same time, so that the conversion of micro-energy is realized. In addition, the micro-energy collection method according to the embodiment of the application may also transmit the communication frequency band signal to other modules of the execution main body of the micro-energy collection method to emit a signal to the outside to implement a communication function, for example, but not limited to, the load module of the passive electronic device may implement the communication function under the action of the communication frequency band signal. Therefore, the micro-energy collection method can realize wireless radio frequency micro-energy collection and can realize double functions of energy transmission and communication transmission.

In some embodiments, the micro-energy collection method further comprises: and when the interference is detected, the frequency of the micro-energy source signal of another specific frequency is locked.

The specific frequency of the micro-energy collection method for frequency locking operation can be adaptive to environmental changes. For example, in a certain environment, if the original specific frequency is interfered, the micro energy collection method may replace the micro energy signal with another specific frequency to perform frequency locking operation, where the another specific frequency may be frequency data pre-stored in an execution subject of the micro energy collection method, such as a passive electronic device, or frequency data adaptively determined by the micro energy collection method according to the received signal. It can be understood that, when the interference is detected, the micro energy acquisition method according to the embodiment of the present application may also receive the micro energy signal of the other specific frequency in the space, so that the subsequent steps may perform frequency locking on the micro energy signal of the other specific frequency and convert the frequency locked micro energy signal into electric energy with higher efficiency.

In some embodiments, the step 102 of converting the frequency-locked micro-power signal into electric energy includes: converting the micro energy source signal after frequency locking into a micro current signal; and converting the micro-current signal into the stably output polymerization electric energy.

According to the micro-energy collection method of the embodiment of the application, the received micro-energy signal of the space can be subjected to frequency locking and converted into a micro-current signal (primary electric energy), then the micro-current signal can be converted into the stably output aggregated electric energy (secondary electric energy), and other modules (or other modules receiving the aggregated electric energy to work) of the execution main body of the micro-energy collection method, such as but not limited to a load module of a passive electronic device, can work under the supply of the stably output aggregated electric energy.

In some embodiments, converting the micro-current signal to a stable output of aggregated electrical energy comprises: collecting and mixing micro-current signals in a preset unit time length into a group; and extracting nominal micro-current signals with similar characteristic points in each group, and enabling the micro-current signals after nominal extraction to form stable output polymerization electric energy.

The micro-energy collection method can collect and mix micro-current signals received in preset unit time into one group, extract and nominally pack the micro-current signals with approximate characteristics in each group, so that the micro-current signals with the alternating current characteristics can be converted into stably output aggregated electric energy. The stably outputted aggregated electric energy can be supplied to other functional modules so that the functional modules can work normally.

It should be noted that the above is merely an exemplary example for converting the micro-current signal into the stable output aggregate electric energy, and for example, but not limited to, the above function may be implemented by a rectifier. The embodiment of the present application does not limit the specific manner of converting the micro-current signal into the stable output aggregate power.

Based on the above description of the micro energy collecting method, please refer to fig. 3, and fig. 3 is a second flowchart of the micro energy collecting method according to the embodiment of the present application.

In 201, receiving a micro-energy source signal in a space;

the micro-energy signal can refer to various weak nano-ampere current electromagnetic wave signals of various emission sources wirelessly scattered in the air. The micro-energy collection method according to the embodiment of the application can control an execution main body thereof to execute the micro-energy signal in the receiving space, for example, but not limited to (a receiving antenna unit of) a wireless receiving module of a passive electronic device.

In 202, the micro energy source signal is converted into a digital signal, the digital signal with specific frequency is subjected to frequency locking, and the digital signal after frequency locking is subjected to gain amplification to form a micro current signal;

the micro-energy source acquisition method converts micro-energy source signals into digital signals, so that the identification of parameters such as frequency, waveform and the like of the digital signals is facilitated, and the frequency locking operation of the digital signals with specific frequency is facilitated. And the digital signal after frequency locking is subjected to gain amplification, so that the electric energy converted by the micro-energy source signal is stronger, and the efficiency of converting the micro-energy source into the electric energy is improved.

It is understood that the micro-energy collection method may control its execution subject such as, but not limited to, (the rfid unit and the power control unit of) the wireless receiving module of the passive electronic device to execute the above steps.

In 203, collecting and mixing micro-current signals in a preset unit time length into a group, extracting the micro-current signals with similar characteristic points in each group into a nominal value, and enabling the micro-current signals after the nominal value is extracted to form stable output polymerization electric energy;

the micro-energy collection method can convert the primary electric energy of the micro-current signal into the secondary electric energy of the stably output polymerization electric energy. The micro-energy collection method can collect and mix micro-current signals received in preset unit time into one group, extract and nominally pack the micro-current signals with approximate characteristics in each group, so that the micro-current signals with the alternating current characteristics can be converted into stably output aggregated electric energy. The stably outputted aggregated electric energy can be supplied to other functional modules so that the functional modules can work normally.

It can be understood that, when the micro-current signal is nominally packaged as the aggregate electric energy, the micro-energy collection method may label the electrical characteristic of the aggregate electric energy, for example, may label the aggregate electric energy as the aggregate electric energy of N-volt voltage and M-ampere current, so that the micro-energy collection method may perform electric quantity management according to the labeled aggregate electric energy, for example, but not limited to, the micro-energy collection method may calculate the current electric energy reserve of an execution subject of the micro-energy collection method, such as but not limited to a passive electronic device or other energy-requiring devices, calculate the time duration of the wireless radio frequency micro-energy collection this time, calculate the time duration interval … … of the next wireless radio frequency micro-energy collection, and so on.

In 204, upon detecting the interference, the above steps 201 to 203 are performed for the micro-energy source signal of another frequency.

The specific frequency of the micro-energy collection method for frequency locking operation can be adaptive to environmental changes. For example, in a certain environment, if the original specific frequency is interfered, the micro energy collection method may replace the micro energy signal of another specific frequency to perform frequency locking operation, where the another specific frequency may be frequency data pre-stored in an execution subject of the micro energy collection method, such as a passive electronic device, or frequency data adaptively determined by the micro energy collection method according to the received signal.

It can be understood that, when the interference is detected, the micro energy acquisition method according to the embodiment of the present application may also receive the micro energy signal of the other specific frequency in the space, so that the subsequent steps may perform frequency locking on the micro energy signal of the other specific frequency and convert the frequency locked micro energy signal into electric energy with higher efficiency.

According to the micro-energy collection method, micro-energy signals in the space can be converted into micro-current signals and converted into stably-output aggregated electric energy, the electric energy converted by the micro-energy signals is more stable, the micro-energy collection method is more suitable for an execution main body of the micro-energy collection method or other energy-requiring equipment, and the application scene of the micro-energy collection method is wider. In addition, the micro energy acquisition method provided by the embodiment of the application can be used for acquiring the undisturbed micro energy signal in a self-adaptive manner according to the current environment to perform electric energy conversion, and the electric energy conversion efficiency of the micro energy signal is higher.

It should be noted that the micro-energy collection method according to the embodiment of the present application may be applied to a passive electronic device or a module related to the passive electronic device according to any one of the embodiments described below. Of course, the micro-energy collection method may also be applied to other modules, devices, storage media, and electronic devices that can implement the scheme, which is not limited in this embodiment of the application.

Based on the micro energy collection method, the embodiment of the application further provides a passive electronic device, and the passive electronic device can execute the micro energy collection method of any embodiment. Referring to fig. 4 and fig. 5, fig. 4 is a first structural schematic diagram of a passive electronic device 100 according to an embodiment of the present disclosure, and fig. 5 is a first structural schematic diagram of a wireless receiving module 110 shown in fig. 4.

The wireless receiving module 110 may receive a micro energy signal in a space, may lock a frequency of the micro energy signal with a specific frequency (including an electrical signal corresponding to the micro energy signal), and may convert the frequency-locked micro energy signal (including an electrical signal corresponding to the micro energy signal) into a micro current signal or an electrical energy signal (primary electrical energy). The micro-current signal or the electrical energy signal may be used for the wireless receiving module 110 of the passive electronic device 100 to work, may be used for other modules of the passive electronic device 100 to work, and may be used for other devices requiring energy to work.

As shown in fig. 5, the wireless receiving module 110 may include a receiving antenna unit 111 and a radio frequency identification unit 112. The receiving antenna unit 111 may receive the micro-energy source signal in the space. The rfid unit 112 may be directly or indirectly electrically connected to the receiving antenna unit 111. The rfid unit 112 may convert the micro-energy source signal received by the receiving antenna unit 111 into a digital signal, perform frequency division identification on the digital signal, and perform frequency locking on the digital signal with a specific frequency by the rfid unit 112.

The receiving antenna unit 111 can capture micro energy of different frequencies scattered and propagated in the space. The receiving antenna unit 111 may be a probe-type antenna having high sensitivity. Since the radio frequency signals are scattered in the surrounding environment when being transmitted in the space, the radio frequency signals cannot be seen and touched by the eyes of a person in the conventional art, and various radio frequency signals doped in the complex environment cannot be identified. The receiving antenna unit 111 of the embodiment of the present application can search for a specific frequency signal at the highest speed, and can eliminate interference of other wireless signals. The receiving antenna unit 111 according to the embodiment of the present application may adaptively modulate a wireless signal in a receiving space in a frequency range of about 800MHz to 2.4GHz, and the gain and sensitivity of the receiving antenna unit 111 may range from 0 to +15dB, and may not exceed +20dB specified by the radio regulatory commission at maximum. The signal received by the receiving antenna unit 111 can quickly reach the rfid unit 112.

It can be understood that the receiving antenna unit 111 according to the embodiment of the present application may include an antenna radiator for receiving a signal, and may also include an antenna rf circuit, where the antenna rf circuit may excite and convert an electromagnetic wave signal received by the antenna radiator into an electrical signal and form a reference signal source, so that the receiving antenna unit 111 may quickly transmit the reference signal source to the rfid unit 112. Of course, the antenna rf circuit may also be integrated in other modules of the passive electronic device 100, for example, the antenna rf circuit may also be integrated in the rfid unit 112. The embodiment of the present application does not limit the specific structure of the receiving antenna unit 111.

The rfid unit 112 may receive the micro-energy source signal transmitted by the antenna unit 111, and process the micro-energy source signal to obtain a digital signal corresponding to the micro-energy source signal; the rfid unit 112 may also receive an electrical signal corresponding to the micro-energy source signal transmitted by the antenna unit 111 and convert the electrical signal into a digital signal. The rfid unit 112 may identify, divide, and analyze the digital signal corresponding to the micro-energy signal transmitted by the receiving antenna unit 111, and perform a frequency locking operation on the signal with a specific frequency.

It is understood that the specific frequency of the rfid unit 112 for performing the frequency locking operation may be a preset frequency. The rfid unit 112 may also identify, divide, and analyze the micro-energy source signal transmitted by the receiving antenna unit 111, and capture a signal with a specific frequency to perform a frequency locking operation. For example, the wireless receiving module 110 (e.g., the rfid unit 112, or the later power control unit 113) may be activated by the power signal or the micro-current converted from the micro-power source signal received by the receiving antenna unit 111, and transmit a preset frequency to the receiving antenna unit 111 (e.g., the rf circuit of the receiving antenna unit 111), so that the receiving antenna unit 111 may capture more wireless signals of the preset frequency. Of course, the activated wireless receiving module 110 may also transmit the preset frequency to the rfid unit 112, so that the rfid unit 112 can lock the frequency of the signal with the preset frequency.

It is understood that the specific frequency when the rfid unit 112 performs the frequency locking operation may also be a frequency adaptively determined by the rfid unit 112 after analyzing the micro-energy source signal transmitted by the receiving antenna unit 111. For example, the rfid unit 112 may identify a signal with the optimal signal intensity and the better gain effect in the digital signal corresponding to the micro energy source signal, further perform frequency locking on the digital signal corresponding to the micro energy source signal with the specific frequency by using the frequency of the identified signal as the specific frequency, and convert the digital signal corresponding to the micro energy source signal after frequency locking into a micro current signal or an electrical energy signal. It is understood that the wireless receiving module 110 can store the specific frequency parameter or transmit the specific frequency parameter to the receiving antenna unit 111 or the rfid unit 112, so that the receiving antenna unit 111 or the rfid unit 112 can rapidly capture and lock the signal of the specific frequency.

It is understood that the wireless receiving module 110 may lock the frequency of the micro-energy source signal of another specific frequency when detecting the interference. For example, a specific frequency of the frequency locking operation performed by the rfid unit 112 may be adapted to the environmental change, so as to lock the frequency of the micro-energy source signal of another specific frequency when the interference is detected. For example, in a certain environment, if an original specific frequency is interfered, the rfid unit 112 may perform a frequency locking operation by replacing another specific frequency, where the another specific frequency may be frequency data stored in the wireless receiving module 110 in advance, or frequency data adaptively determined by the rfid unit 112 according to a signal received by the receiving antenna unit 111.

It should be noted that, the above is merely an exemplary example of the frequency locking performed by the rfid unit 112 according to the embodiment of the present application on the specific frequency wireless signal, and the present application is not limited thereto. Any scheme that can enable the rfid unit 112 to perform the frequency locking operation is within the scope of the embodiments of the present application.

It is understood that the rfid unit 112 may transmit the frequency-locked digital signal to other modules of the passive electronic device 100, such as the power management module 120 or other energy-requiring devices, for subsequent operations; the rfid unit 112 may further amplify the frequency-locked digital signal to a micro-current signal or an electrical energy signal, and enable a portion of energy of the micro-current signal or the electrical energy signal to be supplied to the wireless receiving module 110, such as the receiving antenna unit 111 and the rfid unit 112, and transmit another portion of energy of the micro-current signal or the electrical energy signal to other modules of the passive electronic device 100, such as the electrical energy management module 120 or other energy-requiring devices, for subsequent operations. The embodiment of the present application does not limit the operation of the radio frequency identification unit 112 after frequency locking.

It is to be understood that the rfid unit 112 may be, but is not limited to, a chip structure integrated by a circuit, and may also be, but is not limited to, a structure integrated by different independent devices, and the specific structure of the rfid unit 112 is not limited in this embodiment of the application.

The wireless receiving module 110 of the embodiment of the application can capture the wireless signals in the space, and the wireless receiving module 110 can also lock the frequency of the wireless signals with specific frequency and convert the frequency-locked wireless signals into electric energy. Therefore, on the one hand, the wireless receiving module 110 of the embodiment of the present application can perform adaptive capture according to the frequency of the micro energy scattered in the space, and the wireless receiving module 110 can actively perform accurate identification capture on the micro energy in multiple frequency bands (for example, 800MHz to 2.4 GHz), so that the sensitivity and efficiency of the wireless receiving module 110 for receiving wireless signals can be improved; on the other hand, the wireless receiving module 110 of the embodiment of the present application may also be adaptive to a micro energy source with a wider frequency band, so that the application scenario of the passive electronic tag of the embodiment of the present application is wider.

Referring to fig. 6 in conjunction with fig. 5, fig. 6 is a schematic structural diagram of the rfid unit 112 shown in fig. 5. The rfid unit 112 may include an analog frequency generator 1121, a frequency tuner 1122, and a frequency locker 1123.

The analog frequency generator 1121 may be electrically connected to the receiving antenna unit 111 directly or indirectly, and the analog frequency generator 1121 may convert the micro-energy source signal received by the receiving antenna unit 111 into a digital signal. It can be understood that, in this process, the receiving antenna unit 111 may first convert the received micro energy source signal into a corresponding electrical signal and transmit the electrical signal to the analog frequency generator 1121, and then the analog frequency generator 1121 converts the electrical signal corresponding to the micro energy source signal into a digital signal; in this process, the receiving antenna unit 111 may directly transmit the received micro-power source signal to the analog frequency generator 1121, and then the circuit inside the analog frequency generator 1121 may convert the micro-power source signal into a digital signal. It should be noted that, in the embodiment of the present application, a specific operation process of the analog frequency generator 1121 is not limited.

It is understood that the analog frequency generator 1121 may include, but is not limited to, an analog-to-digital converter. The embodiment of the present application does not limit the specific structure of the analog frequency generator 1121.

The frequency tuner 1122 may be electrically connected, directly or indirectly, to the analog frequency generator 1121. The frequency tuner 1122 can perform operations such as identification, analysis, and frequency division on the digital signal, so as to divide the frequency of the micro-energy source signal received by the antenna receiving unit in multiple frequency bands (for example, 800MHz to 2.4 GHz), so that the frequency locker 1123 locks the frequency of the signal with a fixed frequency. For example, the frequency tuner 1122 retains signals related to a specific frequency from the micro-energy source signals received by the receiving antenna unit 111 and filters out signals of other frequencies. For another example, the frequency tuner 1122 may divide the micro-energy source signal received by the receiving antenna unit 111 into an energy band signal (for example, but not limited to, including a 915MHz band signal) and a communication band signal (for example, but not limited to, including a 2.4GHz band signal), so that the wireless receiving module 110 of the embodiment of the present application may implement wireless radio frequency micro-energy source collection, and may implement dual functions of energy transmission and communication transmission.

It will be appreciated that the frequency tuner 1122 may also perform other processing on the digital signal, such as, but not limited to, tuning the digital signal, in order to further divide the frequency of the micro-energy source signal. The embodiment of the present application does not limit the specific operation of the frequency tuner 1122.

The frequency locker 1123 may be electrically connected to the frequency tuner 1122 directly or indirectly, and the frequency locker 1123 may lock the frequency of the digital signal of a specific frequency so as to capture more signals of the specific frequency.

It can be understood that the frequency locker 1123 may determine a specific frequency according to the signal with the optimal signal strength and the better gain effect in the digital signal analyzed by the frequency tuner 1122 to implement the frequency locking operation; the frequency locker 1123 may also implement a frequency locking operation according to a specific frequency parameter pre-stored in the passive electronic device 100. Of course, the frequency locker 1123 may also implement frequency locking operation according to other manners, and the specific operation manner of the frequency locker 1123 is not limited in this embodiment.

In the passive electronic device 100 according to the embodiment of the present application, for example, the wireless receiving module 110 locks frequency of the micro-energy signal with a specific frequency, and in the process of converting the frequency-locked micro-energy signal into electric energy, the frequency of the frequency-locked micro-energy signal with the specific frequency may be locked, and the frequency-locked micro-energy signal is divided into an energy frequency band signal and a communication frequency band signal; converting at least one of the energy frequency band signal and the communication frequency band signal into electric energy; and transmitting the wireless signal by utilizing the communication frequency band signal.

It can be understood that, after the frequency locker 1123 of the wireless receiving module 110 performs frequency locking operation on the signal with specific frequency, the signal after frequency locking may be divided into multiple frequency bands, for example, into an energy band signal and a communication band signal; then, the different frequency band signals may be respectively transmitted to other modules of the passive electronic device 100, for example, the energy frequency band signal may be transmitted to the power management module 120 of the passive electronic device 100 in the following embodiments, so that the power management module 120 converts the energy frequency band signal into secondary power to supply the whole passive electronic device 100 to work; for another example, the communication band signal may be transmitted to the load module 130 of the passive electronic device 100 in the following embodiments, so that the load module 130 may perform communication by using the communication band signal. It can be understood that, in practical operation, the energy band signal can be converted into a secondary electric energy function, and the communication band signal can be converted into a secondary electric energy function and a communication signal function.

It is understood that, in practical operation, the load module 130 of the passive electronic device 100 may communicate by using the communication frequency band signal, and the load module 130 of the passive electronic device 100 may also self-excite the communication frequency band signal to communicate under the supply of the electric energy. The embodiments of the present application do not limit the specific functions of the energy band signal and the communication band signal.

It should be noted that, the above is merely an exemplary example of the operation manner of the frequency locker 1123, and the specific operation manner of the frequency locker 1123 is not limited thereto, for example, but not limited thereto, the frequency locker 1123 may only perform the frequency locking operation and not perform the frequency dividing operation on the frequency-locked signal. The embodiment of the present application does not limit the specific operation manner of the frequency locker 1123. It should be noted that the above is merely an exemplary example of the rfid unit 112 according to the embodiment of the present application, and the specific structure of the rfid unit 112 is not limited thereto, and for example, but not limited thereto, other circuit structures may also be included. The embodiment of the present application does not limit the specific structure of the radio frequency identification unit 112.

The rfid unit 112 of the embodiment of the present application includes an analog frequency generator 1121, a frequency tuner 1122, and a frequency locker 1123, which are mutually matched, and when an effective rf signal is detected and captured, the rfid unit 112 can rapidly and adaptively capture an oscillation frequency point of a specific frequency and complete same-frequency resonance, so that the rfid unit 112 can adaptively and rapidly convert a wireless signal into a micro-current signal or an electrical energy signal.

Please refer to fig. 7 in conjunction with fig. 4, and fig. 7 is a second structural diagram of the wireless receiving module 110 shown in fig. 4. The wireless receiving module 110 of the embodiment of the present application may further include a power control unit 113.

The power control unit 113 may be electrically connected to the rfid unit 112 directly or indirectly. The power control unit 113 may receive the frequency-locked signal, such as a digital signal, transmitted by the rfid unit 112, and perform gain amplification on the signal, such as the digital signal, to form a micro-current signal or a power signal (i.e., implement a primary power); the power control unit 113 may also perform operations such as distribution, storage, and the like on the micro-current signal or the power signal, so that the primary power formed by the micro-current signal or the power signal can support the normal operation of the whole wireless receiving module 110.

It is understood that the power control unit 113 may transmit the primary power formed by the micro-current signal or the power signal to the rfid unit 112 and the receiving antenna unit 111 to maintain the normal operation of the rfid unit 112 and the receiving antenna unit 111; when the primary power stored in the power control unit 113 has more energy after maintaining the normal operation of the rfid unit 112 and the receiving antenna unit 111, the power control unit 113 may also transmit the more energy to the power management module 120 to activate the power management module 120 and supply the power management module 120 to operate.

The wireless receiving module 110 of the embodiment of the present application includes the receiving antenna unit 111, the radio frequency identification unit 112 and the electric energy control unit 113 at the same time, the receiving antenna unit 111 can capture the micro energy signal from the space, the radio frequency identification unit 112 can identify the micro energy signal, frequency division and frequency locking, the electric energy control unit 113 can store and manage the frequency-locked signal, thereby, the micro energy signal can activate the radio frequency identification unit 112, more micro energy sources can also be continuously stored in the electric energy control unit 113, an effective positive feedback mechanism is formed, and the whole wireless receiving module 110 can work without battery excitation.

Please refer to fig. 8 in combination with fig. 7, and fig. 8 is a schematic structural diagram of the power control unit 113 shown in fig. 7. The power control unit 113 according to the embodiment of the present application may include a reference signal source circuit 1131, a driving gain circuit 1132, and a micro-power storage management circuit 1133.

The reference signal source circuit 1131 may be electrically connected to the frequency locker 1123 directly or indirectly, and the reference signal source circuit 1131 may receive a frequency-locked signal, such as a digital signal, transmitted by the frequency locker 1123.

The driving gain circuit 1132 may be directly or indirectly electrically connected to the reference signal source circuit 1131, and the driving gain circuit 1132 may perform gain amplification on the frequency-locked signal, such as a digital signal, and form a primary electric energy in the form of a micro-current signal or an electric energy signal. It is understood that the driving gain circuit 1132 may perform a first-stage gain amplification on the frequency-locked signal, such as a digital signal, and form a nano-amp-level micro-current signal or a nano-amp-level electrical energy signal by gain amplification to a certain multiple.

The micro energy storage management circuit 1133 may be electrically connected to the excitation gain circuit 1132 directly or indirectly, and the micro energy storage management circuit 1133 may manage the electrical signal or the electrical energy signal or the micro current amplified by the excitation gain circuit 1132. For example, the micro energy storage management circuit 1133 may be provided therein with a small capacitance device, which may store the amplified micro current signal or the first-level electric energy of the electric energy signal; for another example, the micro-power storage management circuit 1133 may transmit a part of the stored micro-current signal or the stored power signal to the receiving antenna unit 111 and the rfid unit 112 according to the operation requirements of the receiving antenna unit 111 and the rfid unit 112, so as to maintain the normal operation of the two. For another example, the micro-energy storage management circuit 1133 may transmit the micro-current signal or the power signal, which is more than the micro-current signal after the wireless receiving module 110 is maintained to operate normally, to the power management module 120 to activate and maintain the operation of the power management module 120.

It should be noted that, the above is only an exemplary illustration of the power control unit 113 according to the embodiment of the present application, and the specific structure of the power control unit 113 is not limited thereto, for example, but not limited thereto, the power control unit 113 may combine one or several of the reference signal source circuit 1131, the excitation gain circuit 1132 and the micro-power storage management circuit 1133 into one circuit structure; for another example, the power control unit 113 may further include more circuit structures. The specific structure of the electric energy control unit 113 is not limited in the embodiment of the present application, and any structure that can amplify and manage the signal after the frequency locking of the radio frequency identification unit 112 may be within the protection scope of the embodiment of the present application.

The electric energy control unit 113 of the embodiment of the present application includes a reference signal source circuit 1131, an excitation gain circuit 1132 and a micro energy storage management circuit 1133, and the three components cooperate with each other to amplify and store the frequency-locked signal of the radio frequency identification unit 112, and the electric energy control unit 113 can complete the first-stage amplification storage management of the micro energy signal.

It should be noted that, the above is only an exemplary example of the wireless receiving module 110 in the embodiment of the present application, and the wireless receiving module 110 in the embodiment of the present application is not limited to this, for example, but not limited to, the wireless receiving module 110 may also include other structures with more functions. The embodiment of the present application does not limit the specific structure of the wireless receiving module 110.

Please refer to fig. 9 and fig. 10, in which fig. 9 is a second structural schematic diagram of the passive electronic device 100 according to the embodiment of the present application, and fig. 10 is a third structural schematic diagram of the passive electronic device 100 according to the embodiment of the present application. The passive electronic device 100 may also include a power management module 120 and a load module 130.

The power management module 120 may be directly or indirectly electrically connected with the wireless receiving module 110 to receive the micro-current signal or the power signal (primary power) transmitted by the wireless receiving module 110. The electrical connection form may be a physical electrical connection form formed by an electrical connection member such as a wire, or may be a non-contact coupling type electrical connection formed by an electromagnetic coupling form. The embodiment of the present application does not limit the specific electrical connection manner between the electric energy management module 120 and the wireless receiving module 110; moreover, the electrical connection relation related in the subsequent embodiments of the present application may also refer to the description of the embodiments of the present application, and will not be described in detail later.

The power management module 120 may receive the micro-current signal or the power signal transmitted by the wireless receiving module 110, and may convert the micro-current signal or the power signal into aggregated power that may be stably output for the operation of each module. It is understood that the micro-current signal or the power signal transmitted by the wireless receiving module 110 may be a primary power, and the power converted by the power management module 120 may be a secondary power. The power management module 120 may manage the micro-current signal or the power signal transmitted by the wireless receiving module 110, for example, but not limited to, the power management module 120 may amplify, convert, distribute, store and the like the micro-current signal or the power signal or the micro-current, so that the primary power may be converted into the secondary power, and the secondary power may be collectively managed, and thus, the power management module 120 may implement a central control function of the passive electronic device 100.

In the passive electronic device 100 of the embodiment of the application, the wireless receiving module 110 and the power management module 120 cooperate to convert a wireless signal in a space into electric power, and supply the electric power to the load module 130 for operation. Therefore, the passive electronic device 100 of the embodiment of the application does not need a traditional battery for power supply, and reconstructs a traditional energy transmission mechanism represented by a battery for power supply and wire transmission in the past; the reliable work of radio frequency communication under extremely low power consumption is broken through, and the scattering distance is prolonged; the possibility of wireless energy transmission in the communication industry can be realized; zero-power wireless radio frequency communication can be realized, and the universality of industry advancement and market application compatibility is realized; the trouble that the intelligent terminal with the industrial scene, the fragment type and the individuation of the Internet of things is low in cost and can be operated continuously can be solved; the wireless micro energy can be effectively collected, redistributed and utilized, the wireless micro energy is recycled, the waste of the wireless micro energy under the energy crisis can be avoided, and the utilization rate of the wireless micro energy is improved.

Because the wireless receiving module 110 needs to convert the micro-energy source signal which is scattered and propagated in the space into a micro-current signal or an electric energy signal, the micro-current signal or the electric energy signal which is transmitted to the electric energy management module 120 by the wireless receiving module 110 is often in an electric signal form with an alternating current characteristic, the electric energy management module 120 can collect and mix the micro-current signal or the electric energy signal which is transmitted by the wireless receiving module 110 in a preset unit time into a group, and extract and package the micro-current signal or the electric energy signal with an approximate characteristic in each group nominally, so that the micro-current signal or the electric energy signal with the alternating current characteristic can be converted into the stably output aggregated electric energy. The stably outputted aggregated power may be supplied to the load module 130 of the passive electronic device 100 or other energy-requiring devices, so that the load module 130 or other west energy-requiring devices may operate normally.

It should be noted that, the above is only an exemplary example for the power management module 120 to achieve stable output of the aggregated power, for example, but not limited to, the power management module 120 may include a rectifier and achieve the above functions through the rectifier. The embodiment of the present application does not limit the specific manner of the power management module 120 for stably outputting the aggregated power.

It is understood that power management module 120 may also store the steady output aggregated power, for example, but not limited to, power management module 120 may include a super capacitor structure to store power. The load module 130 and the wireless receiving module 110 can maintain normal operation under the action of the stored electric energy. Of course, the passive electronic device 100 may also include a power storage module separately, and the power storage module may be electrically connected to the power management module 120 to receive and store the aggregated power output by the power management module 120. Meanwhile, the energy storage module may also be electrically connected to other modules of the passive electronic device 100, such as the wireless receiving module 110 and the load module 130, directly or indirectly to maintain the normal operation of the two. In the present embodiment, the specific storage mode of the polymerization electric energy is not limited.

The power management module 120 of the embodiment of the application may convert the power or the micro-current transmitted by the wireless receiving module 110 into the stably output aggregated power, and the stably output aggregated power may ensure the normal operation of the load module 130. Therefore, the electric energy management module 120 of the present application can realize that the alternating current signal is converted into the electric energy of stable output without the support of a complex hardware structure, and has the advantages of simple structure, convenient operation, lower energy storage cost and better power supply effect.

Please refer to fig. 11 and 12 in conjunction with fig. 9, in which fig. 11 is a first structural diagram of the power management module shown in fig. 9, and fig. 12 is an electrical connection diagram of the power management module 120 shown in fig. 11. The power management module 120 may include an amplification unit 121 and a power management unit 122.

The amplifying unit 121 may be directly or indirectly electrically connected to the wireless receiving module 110, for example, the amplifying unit may be directly or indirectly electrically connected to the power control unit 113 of the wireless receiving module 110, and further, the amplifying unit 121 may be directly or indirectly electrically connected to the micro-power storage management circuit 1133 of the power control unit 113. The amplifying unit 121 may receive the micro-current signal or the power transmitted by the wireless receiving module 110 and may amplify the micro-current signal or the power signal. The amplifying unit 121 can synchronize and perform inverse transformation amplification on the nano-ampere micro-current signal or the electric energy or the micro-current transmitted by the wireless receiving module 110, and the amplifying unit 121 can realize secondary amplification of the micro-energy.

It is understood that the amplifying unit 121 may be, but is not limited to, a power amplifier. The specific structure of the amplifying unit 121 is not limited in the embodiment of the present application, and all circuits or structures capable of amplifying electric energy or micro current are within the scope of the embodiment of the present application.

The power management unit 122 may be electrically connected with the amplification unit 121 directly or indirectly. The power management unit 122 may receive the amplified micro-current signal or the power signal transmitted by the amplifying unit 121 and perform effective power management. The power management unit 122 may convert the amplified micro-current signal or the power signal into the aggregated power that is stably output. For example, the power management unit 122 may employ an energy recovery algorithm that employs an energy point innovation feature set hybrid algorithm to achieve stable output aggregated power. Specifically, the electric energy management unit 122 may mix and organize the micro-current signals or the electric energy signals transmitted by the wireless receiving module 110 within a preset unit time into a group, and extract the micro-current signals or the electric energy signals having similar characteristics in each group and perform nominal packing, so that the micro-current signals or the electric energy signals having the alternating current characteristics may form the stably output aggregated electric energy. The stably outputted aggregated power may be supplied to the load module 130 so that the load module 130 operates normally. It can be understood that, when the power management unit 122 performs the nominal packaging of the micro-current signal or the power signal into the aggregate power, the power management unit 122 may perform the electrical characteristic marking on the aggregate power, for example, may mark the aggregate power as the aggregate power of N volt voltage and M ampere current, so that the power management unit 122 may perform the power management according to the marked aggregate power, for example, but not limited to, the power management unit 122 may calculate the current power reserve of the passive electronic device 100, calculate the time duration of the passive electronic device 100 performing the wireless rf micro-power collection this time, calculate the time duration interval … … of the passive electronic device 100 performing the wireless rf micro-power collection next time, and the like.

It should be noted that, the above is only an exemplary example of the power management unit 122 implementing stable output of the aggregated power, and the power management unit 122 may also implement the above functions in other manners, for example, but not limited to, the power management unit 122 may implement the above functions through a rectifier. The embodiment of the present application does not limit the specific manner of the power management unit 122 to stably output the aggregated power.

It is understood that the power management unit 122 may also be directly or indirectly electrically connected to the wireless receiving module 110, for example, the power management unit 122 may be directly or indirectly electrically connected to the power control unit 113 of the wireless receiving module 110, and further, the power management unit 122 may be directly or indirectly electrically connected to the micro-energy storage management circuit 1133 of the power control unit 113. The power management unit 122 may be activated and in an operating state under the excitation of the micro-current signal or the power signal transmitted by the wireless receiving module 110, so that the power management unit 122 converts the micro-current signal or the power signal amplified by the amplifying unit 121 into the aggregated power that is stably output. Of course, the power management unit 122 may also be activated and in an operating state under the action of the amplified micro-current signal or the power signal provided by the amplifying unit 121, so that the power management unit 122 realizes stable output of the aggregated power. It should be noted that, in the embodiment of the present application, a specific manner of the power management unit 122 is not limited, and any operation manner that can convert the electrical signal or the power signal or the micro-current amplified by the amplifying unit 121 into the stable output aggregate power may be within the protection scope of the embodiment of the present application.

It is understood that the power management unit 122 may also store the aggregated power. For example, the power management unit 122 may include a power storage unit such as, but not limited to, a super capacitor, which may store the aggregated power converted by the power management unit 122 and may transmit the aggregated power to other modules when the other modules need power support.

Of course, in other embodiments, please refer to fig. 13 and 14, fig. 13 is a fourth structural schematic diagram of the passive electronic device 100 according to the embodiment of the present application, and fig. 14 is a second structural schematic diagram of the power management module 120 shown in fig. 9, as shown in fig. 13, the passive electronic device 100 may be separately provided with a power storage unit 140; alternatively, as shown in fig. 14, the power management module 120 may be provided with a power storage unit 124 separately. The electrical energy storage unit 140 or the electrical energy storage unit 124 may be electrically connected directly or indirectly to the electrical energy management module 120, such as the electrical energy management unit 122, and store the aggregate electrical energy transmitted by the electrical energy management unit 122, and may provide electrical energy support for other modules. Based on this, the embodiment of the present application does not limit the specific storage manner of the polymerization electric energy.

The electric energy management module 120 of the embodiment of the application includes an amplifying unit 121 and an electric energy management unit 122, the amplifying unit 121 may implement a first-level electric energy inversion amplification of a micro-current signal or an electric energy signal transmitted by the wireless receiving module 110, the electric energy management unit 122 may effectively combine weak energy scattered in an alternating current characteristic after amplification into aggregate energy which is stably output, and the aggregate energy may effectively ensure normal operation of the electric energy management module 120 and the load module 130.

Please refer to fig. 15 in combination with fig. 11 and 12, and fig. 15 is a schematic diagram of a third structure of the power management module 120 shown in fig. 9. The power management module 120 may further include a control management unit 123.

The control management unit 123 may be electrically connected to at least one of the other units of the power management module 120, the wireless receiving module 110, and the load module 130, directly or indirectly. The control management unit 123 may be directly or indirectly electrically connected to the power management unit 122. The power management unit 122 may transmit the stably outputted aggregated power to the control management unit 123, and the control management unit 123 may receive the aggregated power and activate the operation.

The control management unit 123 may be electrically connected with the amplification unit 121 directly or indirectly. The control management unit 123 may control the operation of the amplifying unit 121 according to the aggregated power transmitted by the power management unit 122. For example, the control management unit 123 may control the magnification of the amplification unit 121. It is understood that the amplifying unit 121 may receive the micro-current signal or the power signal transmitted by the wireless receiving module 110, such as the micro-energy storage management circuit 1133, first amplify the micro-current signal or the power signal according to a preset amplification factor (for example, one amplification factor), and transmit the amplified micro-current signal or the power signal to the power management unit 122 and form aggregate power, so that the control management unit 123 may be activated by the aggregate power, and the control management unit 123 may be activated quickly. Subsequently, the control management unit 123 may control and adjust the amplification unit 121 to a multiple (for example, to amplify twice or three times … …) according to the aggregated power transmitted by the power management unit 122, and the amplification unit 121 may continue to amplify the received micro-current signal or power signal according to the adjusted amplification, which may make the conversion rate of the aggregated power faster. It is understood that, in this process, the control management unit 123 may adjust the operating parameters of the amplifying unit 121 a plurality of times according to actual conditions. The embodiment of the present application does not limit the specific operation manner of the control management unit 123 controlling the amplifying unit 121.

It is understood that the control management unit 123 may also be electrically connected to the load module 130, and the control management unit 123 may control the power management unit 122 or the power storage unit to provide power to the load module 130 according to the operating parameters of the load module 130, and ensure the normal operation of the load module 130. It is understood that the control management unit 123 may also reversely control the operations of the amplifying unit 121 and the power management unit 122 according to the operating state of the load module 130 (e.g., the power consumption of the load module 130), for example, the amplification factor of the amplifying unit 121 may be adjusted according to the operating state of the load module 130, and the distribution ratio of the power management unit 122 to the power of the load module 130 may be adjusted. The embodiment of the present application does not limit the specific control manner of the control management unit 123 for the load module 130, the amplifying unit 121, and the power management unit 122.

The control management unit 123 may be electrically connected to the wireless receiving module 110 directly or indirectly, and the control management unit 123 may control the wireless receiving module 110. For example, but not limited to, when the aggregate power stored in the passive electronic device 100 reaches a certain level, the micro power does not need to be converted into the aggregate power, and at this time, the control management unit 123 may control the wireless receiving module 110 to stop operating. It should be noted that the above is only an exemplary specific example of controlling the management unit 123 to control the wireless receiving module 110, and other control schemes may also be within the scope of the embodiments of the present application.

It is understood that the control management Unit 123 may be a Micro Controller Unit (MCU). The control management unit 123 may be a micro-computing center of the whole passive electronic device 100, and the control management unit 123 may operate under the excitation of the aggregated energy provided by the power management unit 122, may perform effective signal source computation of the amplifying unit 121, and may further control the load module 130 to operate. The control management unit 123 may thus control various modules and units of the passive electronic device 100, which will not be described in detail herein.

The electric energy management module 120 of the embodiment of the present application includes an amplifying unit 121, an electric energy management unit 122, and a control management unit 123, where the three modules independently complete their respective operations and may cooperate with each other. The amplifying unit 121 may synchronously invert and amplify the basic signal (micro-current signal or power signal) transmitted by the wireless receiving module 110, the primary power stored in the wireless receiving module 110 may excite and wake up the power management unit 122, the power management unit 122 may be activated quickly, and the response rate of the passive electronic device 100 may be improved; meanwhile, the electric energy management unit 122 may convert the signal amplified by the amplifying unit 121 into a stably output aggregated energy, and the control management unit 123 may process service logic information of each module and each unit of the whole passive electronic device 100 according to the working state of the passive electronic device 100.

Referring to fig. 11 again and fig. 16, fig. 16 is a schematic structural diagram of the amplifying unit 121 shown in fig. 11. The amplification unit 121 may include a reference sampling circuit 1211, a multiple amplification circuit 1212, and an amplification feedback circuit 1213.

The reference sampling circuit 1211 may be electrically connected to the wireless receiving module 110, for example, the power control unit 113 or the micro-energy storage management circuit 1133 of the wireless receiving module 110, directly or indirectly, and the reference sampling circuit 1211 may receive the micro-current signal or the power signal transmitted by the wireless receiving module 110. The multiple amplifying circuit 1212 may be directly or indirectly electrically connected to the reference sampling circuit 1211, and the multiple amplifying circuit 1212 may amplify the received micro-current signal or the power signal by a certain multiple, and perform a two-stage inversion amplification of the solid-line micro-current signal or the power signal.

It is understood that the multiplier amplification circuit 1212 may be directly or indirectly electrically connected to the power management unit 122, so that the multiplier amplification circuit 1212 may transmit the inverted amplified signal to the power management unit 122. Of course, the multiple amplifying circuit 1212 may also transmit the amplified signal to the amplifying feedback circuit 1213, and the amplifying feedback circuit 1213 transmits the inverted and amplified signal to the power management unit 122. The embodiment of the present application does not limit the specific manner in which the amplified electrical signal is transmitted to the power management unit 122.

It is understood that the amplification feedback circuit 1213 may be directly or indirectly electrically connected to the multiplier amplification circuit 1212. The amplification feedback circuit 1213 may also be directly or indirectly electrically connected to the control management unit 123 of the power management module 120, the amplification feedback circuit 1213 may receive the adjustment information of the amplification factor transmitted by the control management unit 123, and the amplification feedback circuit 1213 may transmit the adjustment information to the multiple amplification circuit 1212, so that the multiple amplification circuit 1212 amplifies the received electrical signal, or the electrical energy or the micro-current according to the adjusted amplification factor.

The amplifying circuit of the embodiment of the application includes that the reference sampling circuit 1211, the multiple amplifying circuit 1212 and the amplification feedback circuit 1213 are mutually matched and cooperated, so that the secondary inversion amplification of the micro-current signal or the electric energy signal can be realized, and the control of the control management unit 123 can be received, so that the secondary inversion amplification of the micro-current signal or the electric energy signal can be adaptively controlled, and thus the amplifying circuit of the embodiment of the application can realize effective voltage and current stabilization of the weak signal source in the electric energy management module 120.

It should be noted that, the above is only an exemplary illustration of the amplifying unit 121 provided in the embodiment of the present application, and the specific structure of the amplifying unit 121 is not limited to this, for example, but not limited to, a multi-stage multiple amplifying circuit may be further included inside the amplifying unit 121. Any structure capable of performing secondary inversion amplification on the micro-current signal or the electric energy signal transmitted by the wireless receiving module 110 may be within the protection range of the amplifying unit 121 in the embodiment of the present application.

It should be noted that, the above is only an exemplary illustration of the power management module 120 provided in the embodiment of the present application, and a specific structure of the power management module 120 is not limited thereto, for example, the power management module 120 may include more or fewer modules, and the embodiment of the present application does not limit the specific structure of the power management module 120, and any structural scheme that can receive the micro-current signal or the power signal transmitted by the wireless receiving module 110 and can convert the micro-current signal or the power signal into power may be within the protection scope of the embodiment of the present application.

Please refer to fig. 17, where fig. 17 is a fifth structural schematic diagram of a passive electronic device 100 according to an embodiment of the present disclosure. The load module 130 of the passive electronic device 100 may include a bluetooth unit 131.

The bluetooth unit 131 may be electrically connected to the power management module 120 directly or indirectly, and the bluetooth unit 131 may transmit a signal, for example, an outbound broadcast signal, to the outside under the supply of power provided by the power management module 120. For example, after the power management module 120 receives the micro-current signal or the power signal (primary power) transmitted by the wireless receiving module 110 and converts the micro-current signal or the power signal (secondary power) into the stably outputted aggregate power, the bluetooth unit 131 may broadcast a signal to the outside under the supply of the stably outputted aggregate power provided by the power management module 120.

It is understood that the bluetooth unit 131 may be directly or indirectly electrically connected with the power management unit 122 of the power management module 120 to receive the stably outputted aggregated power transmitted by the power management unit 122. The bluetooth unit 131 may also be directly or indirectly electrically connected to the electric energy storage unit storing the aggregated electric energy, so as to receive the stably outputted aggregated electric energy transmitted by the electric energy storage unit. The bluetooth unit 131 may also be directly or indirectly electrically connected to the control management unit 123 of the power management module 120 to receive the control of the control management unit 123, for example, the control management unit 123 may control the bluetooth unit 131 to broadcast the signal outwards under a certain trigger condition, and stop broadcasting the signal outwards under another certain trigger condition.

It is understood that when other electronic terminals receive the broadcast signal transmitted by the bluetooth unit 131, the bluetooth unit 131 or the passive electronic device 100 may be identified to perform corresponding functions. For example, the bluetooth unit 131 or the passive electronic device 100 may be recognized to implement, but not limited to, a positioning function, a code scanning function, and a content pushing function of the passive electronic device 100. The embodiment of the present application does not limit the specific application scenario of the bluetooth unit 131.

It is understood that bluetooth unit 131 may be responsible for independently parsing a portion of the special content in the BLE protocol stack and may actively broadcast the wireless signal and send the beacon signal. The bluetooth unit 131 in the embodiment of the present application may only transmit a broadcast signal outwards and is not used for receiving a signal, the inside of the bluetooth unit 131 may not include a hardware and software structure adapted to a function of receiving a signal, the bluetooth unit 131 may be designed simply as a radio frequency transmitting end of a BLE signal, the bluetooth unit 131 may not only ensure that an ultra-low power consumption operating state of the bluetooth unit is completed while being compatible with an international universal bluetooth protocol stack, but also consider power of a transmitted signal, so as to ensure a wireless sensing use experience of a scene receiving terminal (e.g., an electronic terminal). In addition, during the use of the bluetooth unit 131, connection and disconnection of the bluetooth unit 131 are a 0-1 switch response, and the bluetooth unit 131 either transmits a signal, such as a broadcast signal, or stops transmitting the signal, which is equivalent to a state change in a fixed scene, so that the meaning of active upload transmission of the bluetooth unit 131 in the present application is far greater than that of passive reception of a conventional Ultra High Frequency (UHF). The bluetooth unit 131 of the present application will be a good network for the more popular ad hoc network expansion application of the future internet of things.

The bluetooth unit 131 in the embodiment of the present application only broadcasts a signal without receiving a signal, which not only makes the structure of the bluetooth unit 131 in the embodiment of the present application simpler and the cost lower, but also makes the bluetooth unit 131 in the embodiment of the present application work under a very low power consumption, and thus the bluetooth unit 131 in the embodiment of the present application is more suitable for the passive electronic device 100 in the present application.

Please refer to fig. 18 and fig. 19 in combination with fig. 17, in which fig. 18 is a schematic diagram of a sixth structure of the passive electronic device 100 according to the embodiment of the present application, and fig. 19 is a schematic diagram of a seventh structure of the passive electronic device 100 according to the embodiment of the present application. The load module 130 of the embodiment of the present application may further include a sensor unit 132.

The sensor unit 132 may be, but is not limited to, a micro system sensor (MEMS). The sensor unit 132 may be electrically connected to the power management module 120, either directly or indirectly, and the sensor unit 132 may collect parameter information under the supply of power provided by the power management module 120. For example, after the power management module 120 receives the micro-current signal or the power signal (primary power) transmitted by the wireless receiving module 110 and converts the micro-current signal or the power signal into the stably outputted aggregate power (secondary power), the sensor unit 132 may collect the parameter information at the time of supplying the stably outputted aggregate power provided by the power management module 120. It is understood that the parameter information may be, but not limited to, parameter information of the current environment of the passive electronic device 100, such as, but not limited to, temperature parameter information, humidity parameter information, pressure parameter information, altitude parameter information, inclination information, etc., and the sensor unit 132 may collect parameters of the temperature parameter, humidity, pressure, altitude, inclination, etc., of the current environment of the passive electronic device 100.

It is understood that the sensor unit 132 may be electrically connected, directly or indirectly, to the power management unit 122 of the power management module 120 to receive the steady output aggregate power transmitted by the power management unit 122. The sensor unit 132 may also be electrically connected directly or indirectly to the electrical energy storage unit storing the aggregate electrical energy to receive the steady output aggregate electrical energy transmitted by the electrical energy storage unit. The sensor unit 132 may also be directly or indirectly electrically connected to the control management unit 123 of the power management module 120 to receive control of the control management unit 123, for example, the control management unit 123 may control the sensor unit 132 to collect preset parameter information under a certain trigger condition, and stop collecting the preset parameter information under another certain trigger condition.

It is understood that the load module 130 of the embodiment of the present application may include at least one of the sensor unit 132 and the bluetooth unit 131. For example, as shown in fig. 17, the load module 130 may include the bluetooth unit 131 without the sensor unit 132; for another example, as shown in fig. 18, the load module 130 may include the sensor unit 132 without the bluetooth unit 131; for another example, as shown in fig. 19, the load module 130 may include both the bluetooth unit 131 and the sensor unit 132. Furthermore, the load module 130 of the present embodiment may include one or more (two or more) bluetooth units 131 and one or more (two or more) sensor units 132. Based on this, the embodiments of the present application do not limit the arrangement and number of the bluetooth unit 131 and the sensor unit 132.

It is understood that the sensor unit 132 may be communicatively connected to another electronic terminal or server or cloud platform, and the sensor unit 132 may transmit the collected parameter information to the other electronic terminal or server or cloud platform, so that the electronic terminal or server or cloud platform may obtain the relevant information in the current environment of the passive electronic device 100.

Of course, the sensor unit 132 may also be directly or indirectly electrically connected to the bluetooth unit 131, the sensor unit 132 may convert the collected related information into an electrical signal carrying information and send the electrical signal to the bluetooth unit 131, and the bluetooth unit 131 may actively broadcast and send the electrical signal to the outside. It should be noted that, the above is only an exemplary description of the parameter information collected by the sensor unit 132 being transmitted to the outside, and the embodiment of the present application does not limit the specific manner of the parameter information collected by the sensor unit 132 being transmitted to the outside.

It is understood that the sensor unit 132 of the embodiment of the present application is a flexible design unit option in the framework of the whole passive electronic device 100, and the passive electronic device 100 may be provided with the sensor unit 132 or may not be provided with the sensor unit 132. The sensor unit 132 may be adapted to different situations, and needs to spatially sense the current environmental parameters of the passive electronic device 100, such as temperature, humidity, pressure, altitude, and the like. Subsequently, the sensor unit 132 can be attached to a spatial wireless network node, and can wirelessly acquire and report the parameters to a cloud platform rear server in real time, so that the whole system not only increases feasible rich contents, but also is close to life needs, and the requirements of different scenes are greatly met.

The sensor unit 132 of the embodiment of the application is a variable task unit for loading a sensing load, and can collect parameter information of the passive electronic device 100 in the current environment and actively broadcast and report the parameter information to the cloud platform by using the bluetooth unit 131, so that the power consumption of the sensor unit 132 can be reduced, the application scene of the passive electronic device 100 can be expanded, and the adaptability of the passive electronic device 100 is improved.

Referring to fig. 20 and fig. 21, fig. 20 is an eighth schematic structural diagram of a passive electronic device 100 according to an embodiment of the present application, and fig. 21 is an electrical connection diagram of the passive electronic device 100 shown in fig. 20. The passive electronic device 100 further comprises an encryption storage unit 150.

The encryption storage unit 150 may be directly or indirectly electrically connected to at least one of the wireless reception module 110, the power management module 120, and the load module 130, and the encryption storage unit 150 may store data and may prevent illegal tampering of the data.

It is understood that the encryption storage unit 150 may be responsible for saving, for example, encrypted saving of configuration parameters important in normal operation of the passive electronic device 100 in case of power failure (power failure), and may prevent malicious and illegal tampering with the data; meanwhile, the sectors of the redundant space on the encryption storage unit 150 can store other data which can be erased and written randomly. Therefore, the encryption storage unit 150 can ensure reasonable allocation of storage space in a limited storage space and control storage operation in good power consumption, so that the energy consumption and the access content are balanced in two directions.

It is understood that the manner in which the encrypted storage unit 150 prevents illegal tampering with the data includes, but is not limited to, modifying the data only if a correct instruction is identified, and rejecting the modified data by other incorrect instructions. The embodiment of the present application does not specifically limit the way in which the encrypted storage unit 150 prevents illegal tampering of data.

It can be understood that the encryption storage unit 150 may cooperate with data encryption of the power management module 120 and the load module 130, and the encryption storage unit 150 may be used as a storage center of an encryption data center of the power management unit 122 in the power management module 120, a storage center of a service logic processing center of the control management unit 123 in the power management module 120, a storage center of a special configuration protocol in the bluetooth unit 131, and a storage center of analog sensing data in the sensor unit 132.

It is understood that the encryption storage unit 150 may be, but is not limited to, a memory, and the memory may be designed to store data and prevent the data from being illegally tampered. The embodiment of the present application does not limit the specific structure of the encryption storage unit 150.

It is understood that the encryption storage unit 150 may be a separate module of the passive electronic device 100, and the encryption storage unit 150 may be integrated into other modules, for example, but not limited to, the encryption storage unit 150 may be integrated into the power management module 120 as part of the power management module 120. The embodiment of the present application does not limit the specific structure of the encryption storage unit 150.

The encryption storage unit 150 in the embodiment of the present application can store data, and can encrypt and store important data to prevent the important data from being tampered with, so that the encryption storage unit 150 in the embodiment of the present application can ensure that a storage space is reasonably configured in a limited storage space and a benign power consumption control storage operation is performed, and bidirectional balance between energy consumption and access content is achieved.

The passive electronic device 100, the bluetooth unit 131, the encryption storage unit 150, and the sensor unit 132 according to the embodiment of the present application may work independently of each other and may work cooperatively with each other. The bluetooth unit 131 may be responsible for parsing a specific part of contents in the BLE protocol stack and actively broadcasting a transmission signal; the encryption storage unit 150 may be responsible for encrypting and storing important configuration parameters under the condition of power failure, and sectors of the redundant space may store other data that can be randomly erased and written; the sensor unit 132 is used as a variable sensing load, and can simulate signal acquisition parameters and then actively broadcast and transmit the signal along with the bluetooth unit 131, so that the passive electronic device 100 of the embodiment of the application can achieve bidirectional balance between energy consumption and access content.

It should be noted that, the above is only an exemplary illustration of the passive electronic device 100 according to the embodiment of the present application, and the specific structure of the passive electronic device 100 is not limited to, for example, the passive electronic device 100 may further include a sleep unit, a wake-up unit, and the like, and the specific structure of the passive electronic device 100 is not limited in the embodiment of the present application.

It should be noted that the micro-energy collection method and the passive electronic device in the embodiments of the present application belong to different subjects under the same inventive concept, the embodiments of the micro-energy collection method and the passive electronic device can be arbitrarily cited and arbitrarily combined, and the cited and combined embodiments are also within the protection scope of the embodiments of the present application and will not be described in detail herein.

It should be noted that the description of all the above embodiments and the description of all the figures in the present application do not limit the scope of the present application. The structural embodiments of the devices, modules, power supplies, circuits, and the like, and the various method embodiments in the embodiments of the present application may be combined arbitrarily without conflict, and the combined embodiments are also within the scope of the embodiments of the present application.

It should be noted that in the description of the present application, it is to be understood that terms such as "first", "second", etc., are used merely for distinguishing between similar objects and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated.

The micro-energy collection method and the passive electronic device provided in the embodiments of the present application are described in detail above, and specific examples are applied in the present application to explain the principle and the embodiments of the present invention. Meanwhile, for those skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed, and in summary, the content of the present specification should not be construed as limiting the present invention.

Claims

1. A micro-energy collection method is characterized by comprising the following steps:

receiving a micro-energy signal in a space;

and carrying out frequency locking on the micro energy source signal with the specific frequency, and converting the micro energy source signal after frequency locking into electric energy.

2. The micro energy source collecting method according to claim 1, wherein the frequency-locking the micro energy source signal with a specific frequency and converting the frequency-locked micro energy source signal into electric energy comprises:

converting the micro-energy source signal into a digital signal;

3. The method for acquiring micro energy according to claim 1, wherein the frequency-locking the micro energy signal with a specific frequency and converting the frequency-locked micro energy signal into electric energy comprises:

4. The micro energy source acquisition method according to claim 1, wherein the frequency-locking the micro energy source signal of a specific frequency comprises:

5. The micro energy source collecting method according to any one of claims 1 to 4, wherein the converting the frequency-locked micro energy source signal into electric energy comprises:

6. The micro-energy harvesting method of claim 5, wherein the converting the micro-current signal into a stable output of aggregated electrical energy comprises:

7. A passive electronic device, comprising:

8. The passive electronic device of claim 7, wherein the wireless receiving module comprises:

and the electric energy control unit is electrically connected with the radio frequency identification unit and is used for receiving the digital signal after frequency locking, performing gain amplification on the digital signal after frequency locking and forming electric energy.

9. The passive electronic device of claim 8, wherein the radio frequency identification unit is further configured to: and when the interference is detected, carrying out frequency locking on the micro energy source signal of another specific frequency.

10. The passive electronic device according to claim 7, wherein the wireless receiving module is configured to convert the frequency-locked micro-energy source signal into a micro-current signal; the passive electronic device further comprises: