CN116317834A - Working method and system of zero-power-consumption node equipment - Google Patents
Working method and system of zero-power-consumption node equipment Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
- H02J50/27—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves characterised by the type of receiving antennas, e.g. rectennas
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
- H02N11/002—Generators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
- H02S10/10—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power including a supplementary source of electric power, e.g. hybrid diesel-PV energy systems
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
- H02S10/20—Systems characterised by their energy storage means
Abstract
The invention provides a working method and a system of zero-power-consumption node equipment, which relate to the technical field of zero-power-consumption equipment and comprise an energy acquisition module, an energy management module and a terminal processor; the energy collection module and the energy management module are in communication connection with the terminal processor; the energy collection module is used for collecting energy around the node equipment; the energy management module is used for converting the direct-current voltage acquired by the energy acquisition module into stable voltage and storing energy; the terminal processor comprises an acquisition management unit, a storage unit and a signal processing unit; the invention improves the existing zero-power-consumption equipment to solve the problems of single energy acquisition mode and excessive unnecessary energy loss of the existing zero-power-consumption equipment.
Description
Technical Field
The invention relates to the technical field of zero-power-consumption equipment, in particular to a working method and a system of zero-power-consumption node equipment.
Background
Zero power consumption communication is a key technology using radio frequency energy harvesting, back scattering, low power consumption computation, and the like. The method has the greatest characteristics that radio waves in a space can be collected to obtain energy so as to drive the mobile terminal to work; meanwhile, the method can also use backscattering and low-power consumption calculation technology, so that the zero-power consumption terminal can realize extremely simple radio frequency and baseband circuit structure. In short, the battery-free terminal is hopeful to be realized, and the communication requirements of the Internet of things with ultra-low power consumption, very small size and very low cost are met, so that the terminal cost, the size and the circuit energy consumption of the terminal are greatly reduced.
The existing zero-power-consumption equipment mainly combines a radio frequency energy acquisition technology, a backscattering technology and a low-power-consumption operation technology to realize the advantage that equipment nodes do not carry power supply batteries, but when the radio frequency energy in the environment is very small, the requirements of the zero-power-consumption equipment and the low-power-consumption operation cannot be met only through the radio frequency energy, and therefore, the existing zero-power-consumption equipment is required to be improved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention collects light energy, radio frequency energy and temperature difference energy, analyzes the collection result and is used for controlling the collection rate of each collection unit, so as to solve the problems of single energy acquisition mode and excessive unnecessary energy loss of the existing zero-power-consumption equipment.
The invention provides a working system of zero-power-consumption node equipment, which comprises an energy acquisition module, an energy management module and a terminal processor, wherein the energy acquisition module and the energy management module are in communication connection with the terminal processor;
the energy collection module is used for collecting energy around the node equipment and comprises a light energy collection unit, a radio frequency energy collection unit and a temperature difference collection unit; the system comprises a light energy collecting unit, a radio frequency energy collecting unit and a temperature difference collecting unit, wherein the light energy collecting unit is used for collecting light energy around the node equipment, the radio frequency energy collecting unit is used for collecting electromagnetic wave energy in a space around the node equipment, and the temperature difference collecting unit is used for collecting heat energy around the node equipment; the energy collection module is used for converting collected light energy, electromagnetic wave energy and heat energy into direct-current voltage;
The energy management module is used for converting the direct-current voltage acquired by the energy acquisition module into stable voltage and storing energy, and comprises a capacitance detector, a voltage monitor and a voltage stabilizer; the capacitor detector is used for storing energy generated by direct current voltage, the voltage monitor is used for judging the received direct current voltage, judging whether to start the terminal processor or not based on a judging result, and the voltage stabilizer is used for converting the direct current voltage into stable voltage;
the terminal processor comprises an acquisition management unit, a storage unit and a signal processing unit;
the acquisition management unit judges whether to use a voltage doubler or not based on the energy acquired by the energy acquisition module, and changes the acquisition rate of the acquisition equipment by the energy intensity acquired by the acquisition equipment in the energy acquisition module;
the signal processing unit is used for decoding the radio frequency signals and reflecting the received signals;
the storage unit is used for storing energy data and a standard regulation signal library, the standard regulation signal library comprises a plurality of standard regulation signals, and the standard regulation signals are radio frequency signals for regulating and controlling node equipment by a user.
Further, the energy harvesting module is configured with an energy harvesting strategy comprising:
the light energy collecting unit collects light energy in the surrounding environment by using a weak light type amorphous silicon photovoltaic panel, the light energy is converted into electric energy by the weak light type amorphous silicon photovoltaic panel, when a system starts to operate, the light energy collecting unit always keeps an operating state, the detected light energy is recorded as detection illumination intensity, the electric energy obtained by the weak light type amorphous silicon photovoltaic panel is converted into voltage, and the voltage is recorded as light energy voltage;
the radio frequency energy acquisition unit comprises an antenna and a rectifier, wherein the antenna is used for receiving radio frequency energy and electromagnetic waves and converting the electromagnetic waves into electric signals through the antenna, the rectifier is used for converting the radio frequency energy received by the antenna into direct current voltage, and when the system starts to operate, the radio frequency energy acquisition unit always keeps an operating state and records the received radio frequency energy as detected radio frequency energy; when the electric signal received by the antenna contains a radio frequency signal, the radio frequency signal is sent to the signal processing unit, and the direct current voltage converted by the rectifier is recorded as radio frequency voltage;
the temperature difference acquisition unit comprises a temperature sensor, an electric heater and a radiator, when the temperature detected by the temperature sensor is greater than or equal to a first standard temperature, the electric heater is started to convert waste heat in a heat source into electric energy, and the temperature detected by the temperature sensor is recorded as a detection temperature; when the detected temperature is greater than or equal to the first standard temperature and less than or equal to the second standard temperature, starting the radiator to a first speed, converting electric energy generated by the electric heater into voltage, and recording the voltage as temperature difference voltage;
And when the detected temperature is higher than the second standard temperature, opening the radiator to a second speed.
Further, the energy management module is configured with a voltage analysis strategy comprising:
the voltage monitor acquires the voltage acquired by the energy acquisition module, the voltage acquired by the energy acquisition module is recorded as the acquired voltage, and when the acquired voltage is greater than or equal to a first standard voltage, the terminal processor and the voltage stabilizer are started, and the voltage stabilizer converts the acquired voltage into a stable voltage for power utilization of the node equipment;
and when the acquired voltage is smaller than the first standard voltage, storing energy generated by the acquired voltage through the capacitance detector.
Further, the acquisition management unit is configured with an acquisition processing policy, the acquisition processing policy comprising:
when the terminal processor is started, the acquisition management unit is started, the acquisition voltage is acquired through the voltage monitor, the light energy voltage, the radio frequency voltage and the temperature difference voltage are acquired, the light energy proportion, the radio frequency proportion and the temperature difference proportion corresponding to the light energy voltage, the radio frequency voltage and the temperature difference voltage are obtained through the proportion algorithm, and the proportion algorithm is as follows:
Further, the collection management unit is further configured with a light energy management policy, the light energy management policy comprising:
when the specific gravity of the light energy is smaller than or equal to the first standard specific gravity, acquiring detection illumination intensity;
when the detected illumination intensity is greater than or equal to the first standard intensity, transmitting a stable voltage to the light energy acquisition unit through the voltage stabilizer to increase the operation rate of the light energy acquisition unit, obtaining the standard operation rate through a light energy rate algorithm, and when the operation rate of the light energy acquisition unit is equal to the standard operation rate, stopping the transmission of the stable voltage, wherein the light energy rate algorithm is as follows:
wherein V1 is the standard running speed, alpha is the light energy conversion coefficient, M is the area of the weak light type amorphous silicon photovoltaic panel, and L is the detection illumination intensity;
when the specific gravity of the light energy is greater than or equal to the first high-energy specific gravity, the voltage stabilizer is transmitted to the radio-frequency energy acquisition unit and the stable voltage of the temperature difference acquisition power supply is multiplied by a first percentage, and the stable voltage transmitted to the light energy acquisition unit by the voltage stabilizer is multiplied by a second percentage.
Further, the acquisition management unit is further configured with a radio frequency management policy, where the radio frequency management policy includes:
when the radio frequency specific gravity is greater than or equal to the first high-energy specific gravity, the stable voltage of the voltage stabilizer transmitted to the light energy acquisition unit and the temperature difference acquisition unit is multiplied by a third percentage, the stable voltage of the voltage stabilizer transmitted to the radio frequency energy acquisition unit is multiplied by a fourth percentage, and the exploration radius of the antenna is increased to a first standard radius;
When the radio frequency specific gravity is smaller than or equal to the first standard specific gravity, acquiring detection radio frequency energy, and when the detection radio frequency energy is smaller than or equal to the first radio frequency intensity, closing the rectifier, and converting electric energy used for the rectifier in the radio frequency energy acquisition unit to the antenna.
Further, the collection management unit is further configured with a temperature difference management policy, where the temperature difference management policy includes:
when the temperature difference specific gravity is greater than or equal to the first high-energy specific gravity, the stable voltage of the voltage stabilizer conveyed to the light energy acquisition unit and the radio frequency energy acquisition unit is multiplied by a fifth percentage, the stable voltage of the voltage stabilizer conveyed to the temperature difference acquisition unit is multiplied by a sixth percentage, and the operation rate of the radiator is increased to a third rate;
when the specific gravity of the temperature difference is smaller than or equal to the first standard specific gravity, the temperature monitored by the temperature sensor is obtained and recorded as low specific gravity temperature, and when the low specific gravity temperature is smaller than or equal to the third standard temperature, the radiator and the electric heater are closed, and the stable voltage for the temperature difference acquisition unit is evenly distributed to the radio frequency energy acquisition unit and the light energy acquisition unit.
Further, the collection management unit further includes a voltage doubler, the voltage doubler is used for lifting the collection voltage by a first multiple, the collection management unit is further configured with a voltage doubler management strategy, and the voltage doubler management strategy includes:
Acquiring an acquisition voltage, and when the acquisition voltage is smaller than or equal to a first voltage threshold value, acquiring energy in the capacitance detector, starting a voltage doubler, and lifting the acquisition voltage by a first multiple;
and when the energy in the capacitance detector is smaller than or equal to a first energy threshold value, the voltage doubler is closed, and when the acquired voltage is still smaller than or equal to the first voltage threshold value, the terminal processor is closed.
Further, the signal processing unit comprises a decoder and an encoder, the signal processing unit comprises a signal analysis strategy comprising:
acquiring a radio frequency signal and a standard regulation signal library, decoding the radio frequency signal through a decoder, and matching the decoded radio frequency signal with the standard regulation signal library;
when the decoded radio frequency signal is consistent with any signal in the standard regulation signal library, acquiring a transmission path of the radio frequency signal through an antenna, marking the transmission path as a signal path, and transmitting the decoded radio frequency signal into an encoder;
the encoder compiles a feedback signal based on the decoded radio frequency signal, and sends the feedback signal to a sending end of the radio frequency signal based on a signal path through an antenna.
The invention provides a working method of zero-power-consumption node equipment, which is realized based on a working system of the zero-power-consumption node equipment and comprises the following steps:
Step S1, collecting optical energy, radio frequency energy and heat energy around node equipment, and converting the optical energy, the radio frequency energy and the heat energy into direct current voltage;
step S2, regulating and controlling the node equipment according to the light energy, the radio frequency energy and the direct current voltage obtained by converting the heat energy;
and S3, acquiring radio frequency signals acquired by an antenna in the acquisition equipment, decoding the radio frequency signals through a decoder, judging the decoded radio frequency signals, and when the radio frequency signals meet the conditions, encoding the radio frequency signals through an encoder to obtain feedback signals, and transmitting the feedback signals to a transmitting end of the radio frequency signals.
The invention has the beneficial effects that: the invention converts the collected energy into direct current voltage by collecting the light energy, the radio frequency energy and the temperature difference energy, judges the collected voltage by the voltage monitor, and starts the terminal processor based on the judging result;
The invention also calculates the specific gravity of the light energy voltage, the radio frequency voltage and the temperature difference voltage in the acquisition voltage, analyzes the specific gravity of the light energy, the radio frequency specific gravity and the temperature difference specific gravity, controls the light energy acquisition unit, the radio frequency energy acquisition unit and the temperature difference acquisition unit based on analysis results, reduces or stops the acquisition rate of the acquisition unit with lower specific gravity, increases the acquisition rate of the acquisition unit with more specific gravity, and has the advantages that when the external environment changes, the acquisition efficiency of the acquisition unit can be adjusted through the acquisition specific gravity, the energy of zero-power consumption equipment is emphasized for acquiring the energy source with larger specific gravity, the acquisition amount of the zero-power consumption equipment to the external energy is increased, and unnecessary energy consumption is reduced;
the invention also receives the radio frequency signals through the antenna, compares the radio frequency signals in the standard regulation signal library, and sends the feedback signals through the antenna according to the comparison result.
Additional aspects of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic block diagram of a system of the present invention;
FIG. 2 is a flow chart of the steps of the method of the present invention;
fig. 3 is a schematic diagram of the conversion of light energy into electrical energy according to the present invention.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention.
Embodiments of the invention and features of the embodiments may be combined with each other without conflict.
Referring to fig. 1, the first embodiment provides a working system of a node device with zero power consumption, which includes an energy collecting module, an energy management module and a terminal processor, wherein the energy collecting module and the energy management module are in communication connection with the terminal processor;
The energy collection module is used for collecting energy around the node equipment, and comprises a light energy collection unit, a radio frequency energy collection unit and a temperature difference collection unit, wherein the radio frequency energy collection unit is used for collecting electromagnetic wave energy in a space around the node equipment; the energy collection module is used for converting the collected light energy, electromagnetic wave energy and heat energy into direct-current voltage;
the energy harvesting module is configured with an energy harvesting strategy comprising:
referring to fig. 3, under the irradiation of sunlight, the ions of N-type silicon and P-type silicon in the PN junction in the weak light type amorphous silicon photovoltaic panel move to generate a front electrode electricity and a back electrode electricity, current is formed according to the difference of the ions of the front electrode electricity and the back electrode electricity, the light energy collecting unit uses the weak light type amorphous silicon photovoltaic panel to collect light energy in the surrounding environment, the light energy is converted into electric energy through the weak light type amorphous silicon photovoltaic panel, when the system starts to operate, the light energy collecting unit always keeps an operation state, the detected light energy is recorded as the detection illumination intensity, and the electric energy obtained by the weak light type amorphous silicon photovoltaic panel is converted into voltage and recorded as the light energy voltage;
The radio frequency energy acquisition unit comprises an antenna and a rectifier, the antenna is used for receiving radio frequency energy and electromagnetic waves, the electromagnetic waves are converted into electric signals through the antenna, the rectifier is used for converting the radio frequency energy received by the antenna into direct current voltage, when the system starts to operate, the radio frequency energy acquisition unit always keeps an operating state, and the received radio frequency energy is recorded as detected radio frequency energy; when the electric signal received by the antenna contains a radio frequency signal, the radio frequency signal is sent to the signal processing unit, and the direct current voltage converted by the rectifier is recorded as radio frequency voltage;
in the specific implementation process, in order to ensure that the radio frequency energy acquisition unit can acquire radio frequency signals sent by a user in time, the radio frequency energy acquisition unit is always started, when the self energy of zero-power consumption equipment is very low, the antenna can be abandoned to receive electromagnetic energy and electromagnetic waves, and the rest energy is used for the antenna to receive the radio frequency signals;
the temperature difference acquisition unit comprises a temperature sensor, an electric heater and a radiator, when the temperature detected by the temperature sensor is more than or equal to a first standard temperature, the electric heater is started to convert waste heat in a heat source into electric energy, and the temperature detected by the temperature sensor is recorded as a detection temperature; when the detected temperature is greater than or equal to the first standard temperature and less than or equal to the second standard temperature, starting the radiator to a first speed, converting electric energy generated by the electric heater into voltage, and recording the voltage as temperature difference voltage;
When the detected temperature is higher than the second standard temperature, the radiator is started to a second speed, and when the temperature is increased, the radiating speed of the radiator is increased so as to increase the temperature difference at two ends of the electric heater, and the electric energy obtained by conversion is also increased;
in a specific implementation process, the first standard temperature is 10 ℃, the second standard temperature is 20 ℃, the first rate is 10CFM, and the second rate is 20CFM;
the energy management module is used for converting the direct-current voltage acquired by the energy acquisition module into stable voltage and storing energy, and comprises a capacitance detector, a voltage monitor and a voltage stabilizer; the capacitor detector is used for storing energy generated by the direct current voltage, the voltage monitor is used for judging the received direct current voltage, judging whether to start the terminal processor or not based on a judging result, and the voltage stabilizer is used for converting the direct current voltage into stable voltage;
in the specific implementation process, the capacitor detector stores energy in direct-current voltage which cannot be stored, the energy is used for energy supply of acquisition equipment in zero-power equipment, the voltage stabilizer converts the direct-current voltage into stable voltage, the stable voltage is stored, the energy is used when the energy in the capacitor detector is exhausted, and the terminal processor is opened to consume the energy, so that after the judgment of the voltage monitor, when the acquired energy is too small, the energy is used for the acquisition module, and the energy loss is reduced under the condition that the normal operation of the acquisition module is ensured;
The energy management module is configured with a voltage analysis strategy comprising:
the voltage monitor acquires the voltage acquired by the energy acquisition module, the voltage acquired by the energy acquisition module is recorded as the acquired voltage, and when the acquired voltage is greater than or equal to a first standard voltage, the terminal processor and the voltage stabilizer are started, and the voltage stabilizer converts the acquired voltage into a stable voltage for power utilization of the node equipment;
in the implementation process, the first standard voltage is 180V, the first standard voltage is the lowest voltage capable of starting the terminal processor, and when the acquired voltage is smaller than the first standard voltage, all acquired energy is stored through the capacitance detector and used for the acquisition unit, and the terminal processor is not required to be started;
when the acquired voltage is smaller than the first standard voltage, storing energy generated by the acquired voltage through a capacitance detector;
the terminal processor comprises an acquisition management unit, a storage unit and a signal processing unit;
the acquisition management unit judges whether to use a voltage doubler or not based on the energy acquired by the energy acquisition module, and changes the acquisition rate of the acquisition equipment by the energy intensity acquired by the acquisition equipment in the energy acquisition module;
The acquisition management unit is configured with an acquisition processing strategy comprising:
when the terminal processor is started, the acquisition management unit is started, the acquisition voltage is acquired through the voltage monitor, the light energy voltage, the radio frequency voltage and the temperature difference voltage are acquired, the light energy proportion, the radio frequency proportion and the temperature difference proportion corresponding to the light energy voltage, the radio frequency voltage and the temperature difference voltage are obtained through the proportion algorithm, and the proportion algorithm is as follows:
in the specific gravity algorithm, the ln function is used because the ln function is greatly improved when the independent variable is improved from 0, so that the method is favorable for more sharply capturing the acquisition condition, judging the acquisition condition of the acquisition unit, detecting the acquisition voltage to be 1000V, the light energy voltage to be 200V, calculating to obtain the light energy specific gravity to be 0.7 and the calculation of other specific gravities to be the same; the X obtained by calculation takes the last bit of the decimal point;
the collection management unit is also configured with a light energy management policy, which includes:
when the specific gravity of the light energy is smaller than or equal to the first standard specific gravity, acquiring detection illumination intensity;
When the detected illumination intensity is greater than or equal to the first standard intensity, transmitting a stable voltage to the light energy acquisition unit through the voltage stabilizer to increase the operation rate of the light energy acquisition unit, obtaining the standard operation rate through a light energy rate algorithm, and when the operation rate of the light energy acquisition unit is equal to the standard operation rate, stopping the transmission of the stable voltage, wherein the light energy rate algorithm is as follows:
wherein V1 is the standard running speed, alpha is the light energy conversion coefficient, M is the area of the weak light type amorphous silicon photovoltaic panel, and L is the detection illumination intensity;
in the specific implementation process, alpha is 0.5, the illumination intensity is detected to be 100lux, M is 0.1m, the standard operation rate is calculated to be 5, and the operation rate of the light energy acquisition unit is controlled below the standard operation rate to prevent the transmitted stable voltage from being too high, so that the light energy acquisition unit is overloaded to cause damage to the weak light type amorphous silicon photovoltaic panel;
when the specific gravity of the light energy is greater than or equal to the first high-energy specific gravity, the voltage stabilizer is transmitted to the radio-frequency energy acquisition unit and the stable voltage of the temperature difference acquisition power supply is multiplied by a first percentage, and the stable voltage transmitted to the light energy acquisition unit by the voltage stabilizer is multiplied by a second percentage;
the acquisition management unit is also configured with a radio frequency management policy, which includes:
When the radio frequency specific gravity is greater than or equal to the first high-energy specific gravity, the stable voltage of the voltage stabilizer transmitted to the light energy acquisition unit and the temperature difference acquisition unit is multiplied by a third percentage, the stable voltage of the voltage stabilizer transmitted to the radio frequency energy acquisition unit is multiplied by a fourth percentage, and the exploration radius of the antenna is increased to a first standard radius;
when the radio frequency specific gravity is smaller than or equal to the first standard specific gravity, acquiring detected radio frequency energy, and when the detected radio frequency energy is smaller than or equal to the first radio frequency intensity, closing a rectifier, and converting electric energy used for the rectifier in the radio frequency energy acquisition unit to an antenna;
the acquisition management unit is also configured with a temperature difference management strategy, and the temperature difference management strategy comprises:
when the temperature difference specific gravity is greater than or equal to the first high-energy specific gravity, the stable voltage of the voltage stabilizer conveyed to the light energy acquisition unit and the radio frequency energy acquisition unit is multiplied by a fifth percentage, the stable voltage of the voltage stabilizer conveyed to the temperature difference acquisition unit is multiplied by a sixth percentage, and the operation rate of the radiator is increased to a third rate;
when the temperature difference specific gravity is smaller than or equal to the first standard specific gravity, acquiring the temperature monitored by the temperature sensor, recording the temperature as low specific gravity temperature, and when the temperature of the low specific gravity is smaller than or equal to the third standard temperature, closing the radiator and the electric heater, and evenly distributing the stable voltage for the temperature difference acquisition unit to the radio frequency energy acquisition unit and the light energy acquisition unit; the energy management module is used for controlling the voltage stabilizer to change the voltage transmission path, and the stable voltage which is transmitted to the temperature difference acquisition unit is averagely transmitted to the radio frequency energy acquisition unit and the light energy acquisition unit;
In the specific implementation process, the first standard specific gravity is 0.7, the first high-energy specific gravity is 0.95, the first standard intensity is 30lux, the first percentage is 80%, the second percentage is 140%, the third percentage is 60%, the fourth percentage is 220%, the first radio frequency intensity is 50mw, the fifth percentage is 70%, the sixth percentage is 160%, the third standard temperature is 5 ℃, and the third rate is 30CFM; the optical energy management strategy, the radio frequency management strategy and the temperature difference management strategy are mainly used for keeping the element which is required to be opened when the energy acquired by a certain acquisition unit is too low, closing the element with larger consumption, reducing the acquisition rate of other acquisition units when the energy acquired by the certain acquisition unit is too high, increasing the acquisition rate of the acquisition units capable of acquiring higher energy, and effectively improving the energy acquisition efficiency of zero-power consumption equipment;
the collection management unit further comprises a voltage doubler, the voltage doubler is used for lifting the collection voltage by a first multiple, the collection management unit is further configured with a voltage doubler management strategy, and the voltage doubler management strategy comprises:
acquiring an acquisition voltage, and when the acquisition voltage is smaller than or equal to a first voltage threshold value, acquiring energy in the capacitance detector, starting a voltage doubler, and lifting the acquisition voltage by a first multiple;
In the implementation process, the first multiple is 10 times, the first voltage threshold is 0.1V, the first energy threshold is 10J, when the collected voltage is low, the collected direct-current voltage can be lifted by the voltage doubler, but when the energy in the capacitance detector is smaller than the first energy threshold, the energy at the moment is insufficient to support the normal operation of various equipment including the voltage doubler, so that the voltage doubler needs to be closed;
when the energy in the capacitance detector is smaller than or equal to a first energy threshold value, the voltage doubler is closed, and when the acquired voltage is still smaller than or equal to the first voltage threshold value, the terminal processor is closed;
the signal processing unit is used for decoding the radio frequency signals and reflecting the received signals;
the signal processing unit comprises a decoder and an encoder, the signal processing unit comprises a signal analysis strategy, and the signal analysis strategy comprises:
acquiring a radio frequency signal and a standard regulation signal library, decoding the radio frequency signal through a decoder, and matching the decoded radio frequency signal with the standard regulation signal library;
when the decoded radio frequency signal is consistent with any signal in the standard regulation signal library, acquiring a transmission path of the radio frequency signal through an antenna, marking the transmission path as a signal path, and transmitting the decoded radio frequency signal into an encoder;
The encoder compiles a feedback signal based on the decoded radio frequency signal, and sends the feedback signal to a sending end of the radio frequency signal based on a signal path through an antenna;
the storage unit is used for storing energy data and a standard regulation signal library, wherein the standard regulation signal library comprises a plurality of standard regulation signals, and the standard regulation signals are radio frequency signals for regulating and controlling the node equipment by a user.
In a second embodiment, referring to fig. 2, the present embodiment provides a working method of a node device with zero power consumption, which is implemented based on a working system of the node device with zero power consumption, and includes:
step S1, collecting optical energy, radio frequency energy and heat energy around node equipment, and converting the optical energy, the radio frequency energy and the heat energy into direct current voltage;
step S1 comprises the following sub-steps:
step S101, collecting light energy in the surrounding environment by using a weak light type amorphous silicon photovoltaic panel, converting the light energy into electric energy by the weak light type amorphous silicon photovoltaic panel, recording the detected light energy as detection illumination intensity, and converting the electric energy obtained by the weak light type amorphous silicon photovoltaic panel into voltage, and recording the voltage as light energy voltage;
step S102, when the radio frequency signal is contained in the electric signal received by the antenna, the radio frequency signal is sent to step S3, and the direct current voltage converted by the rectifier is recorded as radio frequency voltage;
Step S103, when the temperature detected by the temperature sensor is greater than or equal to a first standard temperature, an electric heater is started to convert waste heat in a heat source into electric energy, and the temperature detected by the temperature sensor is recorded as a detection temperature; when the detected temperature is greater than or equal to the first standard temperature and less than or equal to the second standard temperature, starting the radiator to a first speed, converting electric energy generated by the electric heater into voltage, and recording the voltage as temperature difference voltage;
and when the detected temperature is higher than the second standard temperature, opening the radiator to a second speed.
Step S2, regulating and controlling the node equipment according to the light energy, the radio frequency energy and the direct current voltage obtained by converting the heat energy;
step S2 comprises the following sub-steps:
step S201, acquiring the voltage acquired in the step S1, recording the voltage acquired in the step S1 as an acquired voltage, and starting a voltage stabilizer to convert the acquired voltage into a stable voltage for power utilization of node equipment when the acquired voltage is greater than or equal to a first standard voltage;
when the acquired voltage is smaller than the first standard voltage, storing energy generated by the acquired voltage through a capacitance detector;
step S202, obtaining the light energy proportion, the radio frequency proportion and the temperature difference proportion corresponding to the light energy voltage, the radio frequency voltage and the temperature difference voltage through a proportion algorithm, wherein the proportion algorithm is as follows:
step S203, when the specific gravity of the light energy is smaller than or equal to the first standard specific gravity, acquiring the detection illumination intensity;
when the detected illumination intensity is greater than or equal to the first standard intensity, transmitting a stable voltage to the light energy acquisition unit through the voltage stabilizer to increase the operation rate of the light energy acquisition unit, obtaining the standard operation rate through a light energy rate algorithm, and when the operation rate of the light energy acquisition unit is equal to the standard operation rate, stopping the transmission of the stable voltage, wherein the light energy rate algorithm is as follows:
wherein V1 is the standard running speed, alpha is the light energy conversion coefficient, M is the area of the weak light type amorphous silicon photovoltaic panel, and L is the detection illumination intensity;
when the specific gravity of the light energy is greater than or equal to the first high-energy specific gravity, the voltage stabilizer is transmitted to the radio-frequency energy acquisition unit and the stable voltage of the temperature difference acquisition power supply is multiplied by a first percentage, and the stable voltage transmitted to the light energy acquisition unit by the voltage stabilizer is multiplied by a second percentage;
step S204, when the radio frequency specific gravity is greater than or equal to the first high-energy specific gravity, the stable voltage of the voltage stabilizer transmitted to the light energy acquisition unit and the temperature difference acquisition unit is multiplied by a third percentage, the stable voltage of the voltage stabilizer transmitted to the radio frequency energy acquisition unit is multiplied by a fourth percentage, and the exploration radius of the antenna is increased to a first standard radius;
When the radio frequency specific gravity is smaller than or equal to the first standard specific gravity, acquiring detected radio frequency energy, and when the detected radio frequency energy is smaller than or equal to the first radio frequency intensity, closing a rectifier, and converting electric energy used for the rectifier in the radio frequency energy acquisition unit to an antenna;
step S205, when the temperature difference specific gravity is greater than or equal to the first high-energy specific gravity, the stable voltage of the voltage stabilizer conveyed to the light energy acquisition unit and the radio frequency energy acquisition unit is multiplied by a fifth percentage, the stable voltage of the voltage stabilizer conveyed to the temperature difference acquisition unit is multiplied by a sixth percentage, and the operation rate of the radiator is increased to a third rate;
when the temperature difference specific gravity is smaller than or equal to the first standard specific gravity, acquiring the temperature monitored by the temperature sensor, recording the temperature as low specific gravity temperature, and when the temperature of the low specific gravity is smaller than or equal to the third standard temperature, closing the radiator and the electric heater, and evenly distributing the stable voltage for the temperature difference acquisition unit to the radio frequency energy acquisition unit and the light energy acquisition unit;
step S206, acquiring acquisition voltage, and when the acquisition voltage is smaller than or equal to a first voltage threshold value, acquiring energy in the capacitance detector, starting a voltage doubler, and lifting the acquisition voltage by a first multiple;
when the energy in the capacitance detector is smaller than or equal to a first energy threshold value, the voltage doubler is closed, and when the acquired voltage is still smaller than or equal to the first voltage threshold value, the terminal processor is closed;
Step S3, acquiring radio frequency signals acquired by an antenna in the acquisition equipment, decoding the radio frequency signals through a decoder, judging the decoded radio frequency signals, and when the radio frequency signals meet the conditions, encoding the radio frequency signals through an encoder to obtain feedback signals, and transmitting the feedback signals to a transmitting end of the radio frequency signals;
step S3 comprises the following sub-steps:
step S301, a radio frequency signal and a standard regulation signal library are obtained, the radio frequency signal is decoded through a decoder, and the decoded radio frequency signal is matched with the standard regulation signal library;
step S302, when the decoded radio frequency signal is consistent with any signal in a standard regulation signal library, acquiring a transmission path of the radio frequency signal through an antenna, marking the transmission path as a signal path, and transmitting the decoded radio frequency signal into an encoder;
in step S303, the encoder compiles a feedback signal based on the decoded radio frequency signal, and transmits the feedback signal to the transmitting end of the radio frequency signal based on the signal path through the antenna.
Working principle: the invention converts the collected energy into direct current voltage by collecting light energy, radio frequency energy and temperature difference energy, judges the collected voltage by a voltage monitor, starts a terminal processor based on the judging result, analyzes the specific gravity of the light energy, the radio frequency specific gravity and the temperature difference voltage in the collected voltage by calculating the specific gravity of the light energy, the radio frequency specific gravity and the temperature difference voltage, controls the light energy collecting unit, the radio frequency energy collecting unit and the temperature difference collecting unit based on the analyzing result, reduces or stops the collecting rate of the collecting unit with less specific gravity, increases the collecting rate of the collecting unit with more specific gravity, receives radio frequency signals by an antenna, compares the radio frequency signals in a standard regulation signal library, and sends feedback signals to a user by the antenna according to the comparing result.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media having computer-usable program code embodied therein. The storage medium may be implemented by any type or combination of volatile or nonvolatile Memory devices, such as static random access Memory (Static Random Access Memory, SRAM), electrically erasable Programmable Read-Only Memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), erasable Programmable Read-Only Memory (Erasable Programmable Read Only Memory, EPROM), programmable Read-Only Memory (PROM), read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk, or optical disk. These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
The above examples are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, but it should be understood by those skilled in the art that the present invention is not limited thereto, and that the present invention is described in detail with reference to the foregoing examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The working system of the node equipment with zero power consumption is characterized by comprising an energy acquisition module, an energy management module and a terminal processor, wherein the energy acquisition module and the energy management module are in communication connection with the terminal processor;
the energy collection module is used for collecting energy around the node equipment and comprises a light energy collection unit, a radio frequency energy collection unit and a temperature difference collection unit; the system comprises a light energy collecting unit, a radio frequency energy collecting unit, a temperature difference collecting unit and an energy collecting module, wherein the light energy collecting unit is used for collecting light energy around the node equipment, the radio frequency energy collecting unit is used for collecting electromagnetic wave energy in a space around the node equipment, the temperature difference collecting unit is used for collecting heat energy around the node equipment, and the energy collecting module is used for converting the collected light energy, electromagnetic wave energy and heat energy into direct current voltage;
The energy management module is used for converting the direct-current voltage acquired by the energy acquisition module into stable voltage and storing energy, and comprises a capacitance detector, a voltage monitor and a voltage stabilizer; the capacitor detector is used for storing energy generated by direct current voltage, the voltage monitor is used for judging the received direct current voltage, judging whether to start the terminal processor or not based on a judging result, and the voltage stabilizer is used for converting the direct current voltage into stable voltage;
the terminal processor comprises an acquisition management unit, a storage unit and a signal processing unit;
the acquisition management unit judges whether to use a voltage doubler or not based on the energy acquired by the energy acquisition module, and changes the acquisition rate of the acquisition equipment by the energy intensity acquired by the acquisition equipment in the energy acquisition module;
the signal processing unit is used for decoding the radio frequency signals and reflecting the received signals;
the storage unit is used for storing energy data and a standard regulation signal library, the standard regulation signal library comprises a plurality of standard regulation signals, and the standard regulation signals are radio frequency signals for regulating and controlling node equipment by a user.
2. The system of claim 1, wherein the energy harvesting module is configured with an energy harvesting strategy, the dc voltage comprising a photo-energy voltage, a radio frequency voltage, and a temperature differential voltage, the energy harvesting strategy comprising:
the light energy collecting unit collects light energy in the surrounding environment by using a weak light type amorphous silicon photovoltaic panel, the light energy is converted into electric energy by the weak light type amorphous silicon photovoltaic panel, when a system starts to operate, the light energy collecting unit always keeps an operating state, the detected light energy is recorded as detection illumination intensity, the electric energy obtained by the weak light type amorphous silicon photovoltaic panel is converted into voltage, and the voltage is recorded as light energy voltage;
the radio frequency energy acquisition unit comprises an antenna and a rectifier, wherein the antenna is used for receiving radio frequency energy and electromagnetic waves and converting the electromagnetic waves into electric signals through the antenna, the rectifier is used for converting the radio frequency energy received by the antenna into direct current voltage, and when the system starts to operate, the radio frequency energy acquisition unit always keeps an operating state and records the received radio frequency energy as detected radio frequency energy; when the electric signal received by the antenna contains a radio frequency signal, the radio frequency signal is sent to the signal processing unit, and the direct current voltage converted by the rectifier is recorded as radio frequency voltage;
The temperature difference acquisition unit comprises a temperature sensor, an electric heater and a radiator, when the temperature detected by the temperature sensor is greater than or equal to a first standard temperature, the electric heater is started to convert waste heat in a heat source into electric energy, and the temperature detected by the temperature sensor is recorded as a detection temperature; when the detected temperature is greater than or equal to the first standard temperature and less than or equal to the second standard temperature, starting the radiator to a first speed, converting electric energy generated by the electric heater into voltage, and recording the voltage as temperature difference voltage;
and when the detected temperature is higher than the second standard temperature, opening the radiator to a second speed.
3. The operating system of a zero power node device of claim 2, wherein the energy management module is configured with a voltage analysis strategy comprising:
the voltage monitor acquires the voltage acquired by the energy acquisition module, the voltage acquired by the energy acquisition module is recorded as the acquired voltage, and when the acquired voltage is greater than or equal to a first standard voltage, the terminal processor and the voltage stabilizer are started, and the voltage stabilizer converts the acquired voltage into a stable voltage for power utilization of the node equipment;
and when the acquired voltage is smaller than the first standard voltage, storing energy generated by the acquired voltage through the capacitance detector.
4. A working system of a node device with zero power consumption according to claim 3, wherein the acquisition management unit is configured with an acquisition processing policy, the acquisition processing policy comprising:
when the terminal processor is started, the acquisition management unit is started, the acquisition voltage is acquired through the voltage monitor, the light energy voltage, the radio frequency voltage and the temperature difference voltage are acquired, the light energy proportion, the radio frequency proportion and the temperature difference proportion corresponding to the light energy voltage, the radio frequency voltage and the temperature difference voltage are obtained through the proportion algorithm, and the proportion algorithm is as follows:
5. The system of claim 4, wherein the collection management unit is further configured with a light energy management policy, the light energy management policy comprising:
when the specific gravity of the light energy is smaller than or equal to the first standard specific gravity, acquiring detection illumination intensity;
when the detected illumination intensity is greater than or equal to the first standard intensity, transmitting a stable voltage to the light energy acquisition unit through the voltage stabilizer to increase the operation rate of the light energy acquisition unit, obtaining the standard operation rate through a light energy rate algorithm, and when the operation rate of the light energy acquisition unit is equal to the standard operation rate, stopping the transmission of the stable voltage, wherein the light energy rate algorithm is as follows: 
Wherein V1 is the standard running speed, alpha is the light energy conversion coefficient, M is the area of the weak light type amorphous silicon photovoltaic panel, and L is the detection illumination intensity;
when the specific gravity of the light energy is greater than or equal to the first high-energy specific gravity, the stabilizing voltage of the voltage stabilizer transmitted to the radio-frequency energy acquisition unit and the temperature difference acquisition unit is multiplied by a first percentage, and the stabilizing voltage of the voltage stabilizer transmitted to the light energy acquisition unit is multiplied by a second percentage.
6. The system of claim 5, wherein the collection management unit is further configured with a radio frequency management policy, the radio frequency management policy comprising:
when the radio frequency specific gravity is greater than or equal to the first high-energy specific gravity, the stable voltage of the voltage stabilizer transmitted to the light energy acquisition unit and the temperature difference acquisition unit is multiplied by a third percentage, the stable voltage of the voltage stabilizer transmitted to the radio frequency energy acquisition unit is multiplied by a fourth percentage, and the exploration radius of the antenna is increased to a first standard radius;
when the radio frequency specific gravity is smaller than or equal to the first standard specific gravity, acquiring detection radio frequency energy, and when the detection radio frequency energy is smaller than or equal to the first radio frequency intensity, closing the rectifier, and converting electric energy used for the rectifier in the radio frequency energy acquisition unit to the antenna.
7. The system of claim 6, wherein the collection management unit is further configured with a temperature difference management policy, the temperature difference management policy comprising:
when the temperature difference specific gravity is greater than or equal to the first high-energy specific gravity, the stable voltage of the voltage stabilizer conveyed to the light energy acquisition unit and the radio frequency energy acquisition unit is multiplied by a fifth percentage, the stable voltage of the voltage stabilizer conveyed to the temperature difference acquisition unit is multiplied by a sixth percentage, and the operation rate of the radiator is increased to a third rate;
when the specific gravity of the temperature difference is smaller than or equal to the first standard specific gravity, the temperature monitored by the temperature sensor is obtained and recorded as low specific gravity temperature, and when the low specific gravity temperature is smaller than or equal to the third standard temperature, the radiator and the electric heater are closed, and the stable voltage for the temperature difference acquisition unit is evenly distributed to the radio frequency energy acquisition unit and the light energy acquisition unit.
8. The system of claim 7, wherein the collection management unit further comprises a voltage doubler for boosting the collection voltage by a first factor, the collection management unit further configured with a voltage doubler management policy, the voltage doubler management policy comprising:
Acquiring an acquisition voltage, and when the acquisition voltage is smaller than or equal to a first voltage threshold value, acquiring energy in the capacitance detector, starting a voltage doubler, and lifting the acquisition voltage by a first multiple;
and when the energy in the capacitance detector is smaller than or equal to a first energy threshold value, the voltage doubler is closed, and when the acquired voltage is still smaller than or equal to the first voltage threshold value, the terminal processor is closed.
9. The system of claim 8, wherein the signal processing unit comprises a decoder and an encoder, the signal processing unit comprising a signal analysis strategy, the signal analysis strategy comprising:
acquiring a radio frequency signal and a standard regulation signal library, decoding the radio frequency signal through a decoder, and matching the decoded radio frequency signal with the standard regulation signal library;
when the decoded radio frequency signal is consistent with any signal in the standard regulation signal library, acquiring a transmission path of the radio frequency signal through an antenna, marking the transmission path as a signal path, and transmitting the decoded radio frequency signal into an encoder;
the encoder compiles a feedback signal based on the decoded radio frequency signal, and sends the feedback signal to a sending end of the radio frequency signal based on a signal path through an antenna.
10. A method for operating a zero-power node device, implemented based on an operating system of a zero-power node device according to any one of claims 1-9, comprising:
step S1, collecting optical energy, radio frequency energy and heat energy around node equipment, and converting the optical energy, the radio frequency energy and the heat energy into direct current voltage;
step S2, regulating and controlling the node equipment according to the light energy, the radio frequency energy and the direct current voltage obtained by converting the heat energy;
and S3, acquiring radio frequency signals acquired by an antenna in the acquisition equipment, decoding the radio frequency signals through a decoder, judging the decoded radio frequency signals, and when the radio frequency signals meet the conditions, encoding the radio frequency signals through an encoder to obtain feedback signals, and transmitting the feedback signals to a transmitting end of the radio frequency signals.
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