CN116388361A - General sensor of photovoltaic power supply - Google Patents

General sensor of photovoltaic power supply Download PDF

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Publication number
CN116388361A
CN116388361A CN202310074099.9A CN202310074099A CN116388361A CN 116388361 A CN116388361 A CN 116388361A CN 202310074099 A CN202310074099 A CN 202310074099A CN 116388361 A CN116388361 A CN 116388361A
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China
Prior art keywords
photovoltaic
sensor body
sensor
photovoltaic panel
super capacitor
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CN202310074099.9A
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Chinese (zh)
Inventor
施家健
刘青华
郭明伟
陈景和
王肖龙
胡英军
程永福
卢凌霄
唐斌
安宁
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Zhejiang Reallin Electron Co ltd
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Zhejiang Reallin Electron Co ltd
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Priority to CN202310074099.9A priority Critical patent/CN116388361A/en
Publication of CN116388361A publication Critical patent/CN116388361A/en
Pending legal-status Critical Current

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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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00—Prospecting or detecting by optical means
    • G01V8/10—Detecting, e.g. by using light barriers
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
    • 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
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
    • 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
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/50—Charging of capacitors, supercapacitors, ultra-capacitors or double layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Photovoltaic Devices (AREA)

Abstract

The invention discloses a general sensor powered by photovoltaic, comprising: a sensor body; the sensor body is connected with a photovoltaic panel, and the photovoltaic panel is used for photovoltaic charging; the sensor body is connected with a super capacitor, and the super capacitor is used for supplying power to the sensor body and solving battery passivation; the sensor body is connected with a battery and is used for discharging when the photovoltaic panel and the super capacitor do not work; the sensor body is controlled by two different photovoltaic curves, and the photovoltaic panel is respectively provided with a first working mode and a second working mode when the sensor body is controlled by the two different photovoltaic curves; in an environment with normal illumination, the energy generated by the photovoltaic is completely consumed by the sensor. The battery endurance of the sensor is obviously prolonged, the battery replacement times are reduced, and the maintenance-free effect is achieved; the deployment difficulty is reduced, and the sensor which needs external power supply can be replaced. The deployment can be conveniently and quickly performed in any environment with illumination.

Description

General sensor of photovoltaic power supply
Technical Field
The invention relates to the technical field of sensor power supply, in particular to a universal sensor powered by photovoltaic power.
Background
With the rapid development of the internet of things technology, more and more low-power sensors are powered by batteries. Some sensors require battery replacement for one to two years, for several months. Replacing batteries for these devices would be a very significant effort. In order to ensure long-term stable operation, the sensors need an external power supply, but the sensors are inconvenient to deploy, and do not have conditional external power supplies in all places, such as outdoors and in the field.
In the prior art, a sensor for intelligent home is generally powered by a button cell, such as a door magnet, temperature and humidity and the like. The battery is typically used continuously for at most one year, although it is convenient to deploy, once the number of sensors is up, battery replacement from months to a year would be a huge maintenance effort. The outdoor sensor is powered by a lithium-ion battery, the battery capacity is 1 kilo to thousands of mAh, the battery is powered by an external power supply, the problem of difficult deployment exists, meanwhile, the maintenance work is harder, maintenance personnel are required to run to the field to find out the equipment, and the labor cost and the time cost are not small.
For example, a "a wireless sensor node based on low power consumption" disclosed in chinese patent literature, its bulletin number: CN113630856a discloses a two-part box comprising a box cover and a box body. The solar power generation plate and the solar charging controller are arranged below the transparent box cover, and the sensor protection cover and the antenna are arranged outside the box body; lithium battery, singlechip module, loRa radio frequency module, sensor module socket, debugging interface set up on the product circuit board, but its photovoltaic power supply is not optimized for low-power consumption mode, still has the excessive power consumption problem that needs frequent maintenance.
Disclosure of Invention
In order to solve the problems of inconvenient maintenance and inconvenient deployment of a low-power consumption power supply sensor in the prior art, the invention provides a photovoltaic power supply universal sensor, which is capable of prolonging the endurance service capability of the sensor, reducing the maintenance times and lowering the deployment requirement.
In order to achieve the above object, the present invention provides the following technical solutions:
a photovoltaic-powered universal sensor comprising: a sensor body; the sensor body is connected with a photovoltaic panel, and the photovoltaic panel is used for photovoltaic charging; the sensor body is connected with a super capacitor, and the super capacitor is used for supplying power to the sensor body and solving battery passivation; the sensor body is connected with a battery and is used for discharging when the photovoltaic panel and the super capacitor do not work; the sensor body is controlled by two different photovoltaic curves, and the photovoltaic panel is respectively provided with a first working mode and a second working mode when the sensor body receives the two different photovoltaic curves. The sensor body is used for detecting various targets, the power supply of the sensor body is realized through the photovoltaic panel when the illumination is sufficient, and meanwhile, the continuous energy collection is carried out when the power consumption is low; the super capacitor is used for storing the energy continuously collected by the photovoltaic panel, supplying power for the starting of the sensor body at any time, reducing the consumption of batteries and other power supplies, and meanwhile, the passivation film generated by the batteries with lower use frequency can be broken down to eliminate hysteresis; the battery can be charged when the energy in the super capacitor is insufficient, so that the operation of the sensor body is maintained. The sensor body is internally provided with a processor besides a sensor module for detection, and the processor is used for realizing judgment control of the photovoltaic panel, the super capacitor, the sensor module and the battery. Therefore, the use reliability of the sensor is improved, the requirement for maintaining and replacing the battery is reduced, and the requirement for a power supply in deployment is reduced, so that the low-power consumption power supply sensor can be deployed in more places.
Preferably, the sensor body comprises a low-power consumption mode, and the photovoltaic panel charges the super capacitor and supplies power for the operation of the sensor body in the low-power consumption mode; the sensor body comprises a judging module, and the judging module is used for judging the working mode of the sensor body according to the photovoltaic data. The photovoltaic panel supplies power to the sensor body in the low-power mode, and simultaneously stores some redundant energy into the super capacitor, so that the cruising ability of the sensor in the low-power mode is improved; meanwhile, the judgment module monitors the working state and illumination environment of the sensor according to the photovoltaic data, so that various working modes of the sensor under different illumination environments are realized.
Preferably, the judging module is located inside the sensor body, the judging module comprises a photovoltaic curve model, the photovoltaic curve model comprises a first control node and a second control node, the first control node is used for controlling a photovoltaic working mode, and the second control node is used for controlling the working mode of the sensor body. The photovoltaic curve model comprises photovoltaic panel power generation data and photoelectric conversion data, a coaxial curve is built according to the changes of the photovoltaic panel power generation data and the photoelectric conversion data respectively, a first control node and a second control node are set on the photovoltaic power generation data curve, and only the second control node is set on the photoelectric conversion data curve; the first control node positioned on the photovoltaic power generation data curve is used for controlling the photovoltaic panel to charge the super capacitor, the second control node positioned on the photovoltaic power generation data curve is used for controlling the sensor to start a low-power consumption mode, and the second control node positioned on the photovoltaic conversion data curve is used for controlling the photovoltaic panel to supply power to the sensor; thereby realizing the immediate acquisition of the energy brought by the light rays and realizing the control according to the intensity of the light rays.
Preferably, the first control node is provided with a super capacitor charging signal, and the second control node is provided with a low power consumption mode starting signal; the super capacitor charging signal continues to operate after triggering until triggering is stopped again. The first control node located on the photovoltaic power generation data curve is connected with the super capacitor and the photovoltaic panel, and the second control node sends a low-power consumption mode starting signal to the sensor body and is used for controlling sensors with different purposes inside the sensor body, so that the sensor body can be enabled to be capable of following the photovoltaic curve model to self-adaptively open or close the low-power consumption mode.
Preferably, the sensor body turns off the peripheral device in the low power consumption mode, and judges whether the battery or the capacitor is electrified or not at the same time in the low power consumption mode, and the sensor body is provided with a service module started after the low power consumption mode is ended. The peripheral equipment of the sensor body is closed, so that the energy consumption of the sensor in a low-power consumption mode is reduced; through the detection of electric quantity in electric capacity or battery, realize the start-up of sensor body when the electric quantity is abundant to avoid the sensor body to break away from the low-power consumption mode voluntarily when needs such as timing work, because the low-power consumption mode causes the detection failure, and then avoid the detection inefficacy of sensor.
Preferably, the first control node comprises a plurality of symmetrical arranged on two sides of the second node, and the determination of the first control node is determined by the power of the photovoltaic panel, the power of the super capacitor and the power of the sensor body. Determining whether the power of the photovoltaic panel can meet the use requirement of the sensor body or not according to the difference value of the power of the photovoltaic panel, the power of the super capacitor and the power of the sensor body, and positioning a node of a photovoltaic power generation data curve as a first control node when the power of the photovoltaic panel is larger than the power of the super capacitor and the power of the sensor body; when the power of the photovoltaic panel only exceeds the power of the sensor body, the node of the photovoltaic power generation data curve is positioned as a second control node; when the power of the photovoltaic panel only exceeds the power of the super capacitor and the photoelectric conversion efficiency is low, the node of the photoelectric conversion data curve is positioned as the second control node. The electric quantity of the low-power consumption sensor is supplemented through the control of the first control node, and the additional energy utilization of the low-power consumption sensor in low power consumption is realized through the control of the second control node.
Preferably, the second control node comprises three judgment sub-terminals, the three judgment sub-terminals are respectively positioned on the photovoltaic panel, the super capacitor and the sensor body, the judgment sub-terminals are respectively provided with a current judgment circuit, and the electric quantity signals are sent when the current reaches a set value. The judging sub-end positioned on the photovoltaic panel is used for detecting the working state of the photovoltaic panel, the judging sub-end positioned on the super capacitor is used for judging the power required by the super capacitor, and the judging sub-end positioned on the sensor body is used for judging the working state of the sensor body. The second control node is used for data centralized processing determination of the three judgment sub-ends, and state monitoring of the sensor body, the photovoltaic panel and the super capacitor can be achieved.
Preferably, in the first working mode, the photovoltaic panel is controlled by a switch of the photovoltaic panel; in the second mode of operation, the photovoltaic panel is controlled by the sensor body. The working mode switching of the photovoltaic panel is determined by the sensor body, and when a signal of a first control point on the photovoltaic curve works, the photovoltaic panel performs autonomous control to charge the super capacitor according to the signal; the sensor body controls the photovoltaic panel to supply power to the photovoltaic panel when the signal of the second control point on the photovoltaic curve works. The adaptation of the various modes of operation of the photovoltaic panel is achieved and the various modes of operation of the photovoltaic panel may coexist.
Preferably, the working mode of the sensor body comprises door magnetic detection, temperature and humidity detection and human infrared detection, and the sensor body is provided with a communication module. The sensor body can be suitable for various sensors, so that the low-power consumption use of the sensor for various detection purposes is realized, and the universality is strong.
Preferably, the communication mode of the sensor body comprises NB-IoT, BLE and LoRa communication, and the power consumption of the sensor body is of uA level. The sensor body can carry out various communication, can be suitable for the multiple sensor of different usage of different communication modes, and the universality is strong.
The invention has the following advantages:
(1) In an environment with normal illumination, the energy generated by the photovoltaic is completely consumed by the sensor. The battery endurance of the sensor is obviously prolonged, the battery replacement times are reduced, and the maintenance-free effect is achieved; (2) The deployment difficulty is reduced, and the sensor which needs external power supply can be replaced. The deployment can be conveniently and quickly carried out in any environment with illumination; (3) Under some working conditions, the sensor body can adaptively start or stop a low-power consumption mode along with a photovoltaic curve model; the self-adaption of multiple working modes of the photovoltaic panel is realized, and the multiple working modes of the photovoltaic panel can coexist; (4) The state monitoring of the sensor body, the photovoltaic panel and the super capacitor is realized, the electric quantity supplement of the low-power consumption sensor is realized through the control of the first control node, and the utilization of additional energy sources of the low-power consumption sensor in low power consumption is realized through the control of the second control node; (5) The battery passivation phenomenon of the low-power consumption sensor is solved through photovoltaic power supply, and the service life is prolonged.
Drawings
The drawings in the following description are merely exemplary and other implementations drawings may be derived from the drawings provided without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a system block diagram of a low power sensor in accordance with the present invention.
Fig. 2 is a diagram showing an operation of a low power consumption sensor according to a second embodiment.
In the figure:
1-a sensor body; 2-photovoltaic panel; 3-super capacitor; 4-battery.
Detailed Description
The following description of the embodiments of the invention is intended to be illustrative of the specific embodiments of the invention in which all other embodiments of the invention, as would be apparent to one skilled in the art without undue burden, are included in the scope of the invention.
As shown in fig. 1-2, in a preferred embodiment, the present invention discloses a photovoltaic powered universal sensor comprising: a sensor body 1; the sensor body 1 is connected with a photovoltaic panel 2, and the photovoltaic panel 2 is used for photovoltaic charging; the sensor body 1 is connected with a super capacitor 3, and the super capacitor 3 is used for supplying power to the sensor body and solving battery passivation; the sensor body 1 is connected with a battery 4 for discharging when the photovoltaic panel and the super capacitor do not work; the sensor body is controlled by two different photovoltaic curves, and the photovoltaic panel is respectively provided with a first working mode and a second working mode when the sensor body is controlled by the two different photovoltaic curves. The sensor body is used for detecting various targets, the power supply of the sensor body is realized through the photovoltaic panel when the illumination is sufficient, and meanwhile, the continuous energy collection is carried out when the power consumption is low; the super capacitor is used for storing the energy continuously collected by the photovoltaic panel, supplying power for the starting of the sensor body at any time, reducing the consumption of batteries and other power supplies, and meanwhile, the passivation film generated by the batteries with lower use frequency can be broken down to eliminate hysteresis; the battery can be charged when the energy in the super capacitor is insufficient, so that the operation of the sensor body is maintained. The sensor body is internally provided with a processor besides a sensor module for detection, and the processor is used for realizing judgment control of the photovoltaic panel, the super capacitor, the sensor module and the battery. Therefore, the use reliability of the sensor is improved, the requirement for maintaining and replacing the battery is reduced, and the requirement for a power supply in deployment is reduced, so that the low-power consumption power supply sensor can be deployed in more places.
When the photovoltaic panel is in the first working mode when the light source is sufficient, the priority of the electric energy required by the sensor body for obtaining the work is that the photovoltaic panel, the super capacitor and the battery are arranged from high to low, and the super capacitor obtains the electric energy from the photovoltaic panel. When the light source is insufficient, the photovoltaic panel is in a second working mode, and the priority of the sensor body for acquiring the electric energy required by working is that the photovoltaic panel, the battery and the super capacitor are arranged from high to low. The super capacitor only supplies power to the sensor body. When the electric quantity of the super capacitor is sufficient, the power supply priority of the super capacitor exceeds that of the battery, and when the photovoltaic panel and the super capacitor do not work, the sensor body acquires the energy required by the work from the battery.
The sensor body comprises a low-power consumption mode, and the photovoltaic panel charges the super capacitor and supplies power for the operation of the sensor body in the low-power consumption mode; the sensor body comprises a judging module, and the judging module is used for judging the working mode of the sensor body according to the photovoltaic data. The photovoltaic panel supplies power to the sensor body in the low-power mode, and simultaneously stores some redundant energy into the super capacitor, so that the cruising ability of the sensor in the low-power mode is improved; meanwhile, the judgment module monitors the working state and illumination environment of the sensor according to the photovoltaic data, so that various working modes of the sensor under different illumination environments are realized.
When the sensor is in use, the sensor body enters a low-power consumption mode when not in operation, and when in the low-power consumption mode, the photovoltaic panel is positioned in a first working mode and charges the super capacitor. The electric energy obtained by the sensor body from the photovoltaic panel is the electric energy for maintaining the low-power consumption mode. When the low-power consumption mode is finished, the electric energy required by the sensor body is changed into working mode energy, the acquisition of the working mode energy is determined according to the photovoltaic curve, and at the moment, the working mode of the photovoltaic panel is changed between the first working mode and the second working mode according to the change of the photovoltaic curve.
The judging module is located inside the sensor body and comprises a photovoltaic curve model, the photovoltaic curve model comprises a first control node and a second control node, the first control node is used for controlling a photovoltaic working mode, and the second control node is used for controlling the working mode of the sensor body. The photovoltaic curve model comprises photovoltaic panel power generation data and photoelectric conversion data, a coaxial curve is built according to the changes of the photovoltaic panel power generation data and the photoelectric conversion data respectively, a first control node and a second control node are set on the photovoltaic power generation data curve, and only the second control node is set on the photoelectric conversion data curve; the first control node positioned on the photovoltaic power generation data curve is used for controlling the photovoltaic panel to charge the super capacitor, the second control node positioned on the photovoltaic power generation data curve is used for controlling the sensor to start a low-power consumption mode, and the second control node positioned on the photovoltaic conversion data curve is used for controlling the photovoltaic panel to supply power to the sensor; thereby realizing the immediate acquisition of the energy brought by the light rays and realizing the control according to the intensity of the light rays.
When the photovoltaic curve model is used, after the photovoltaic curve model is built, the first control node and the second control node are set on the photovoltaic curve model according to working parameters of the photovoltaic panel, the super capacitor and the sensor body, and corresponding control signals are respectively sent when the photovoltaic curve model reaches the first control node and the second control node.
The first control node is provided with a super capacitor charging signal, and the second control node is provided with a low-power consumption mode starting signal; the super capacitor charging signal continues to operate after triggering until triggering is stopped again. The first control node located on the photovoltaic power generation data curve is connected with the super capacitor and the photovoltaic panel, and the second control node sends a low-power consumption mode starting signal to the sensor body and is used for controlling sensors with different purposes inside the sensor body, so that the sensor body can be enabled to be capable of following the photovoltaic curve model to self-adaptively open or close the low-power consumption mode.
When the super capacitor charging signal is triggered, the photovoltaic panel enters the first working mode to charge the super capacitor, and when the super capacitor charging signal is triggered, the state of the super capacitor charging signal is already triggered, and then the super capacitor charging signal becomes to be triggered.
And the sensor body is used for closing the peripheral equipment when the low power consumption mode is finished, judging whether the battery or the capacitor is electrified or not at the same time, and the sensor body is provided with a service module started after the low power consumption mode is finished. The peripheral equipment of the sensor body is closed, so that the energy consumption of the sensor in a low-power consumption mode is reduced; through the detection of electric quantity in electric capacity or battery, realize the start-up of sensor body when the electric quantity is abundant to avoid the sensor body to break away from the low-power consumption mode voluntarily when needs such as timing work, because the low-power consumption mode causes the detection failure, and then avoid the detection inefficacy of sensor.
When the photovoltaic power generation system is used, the photoelectric sensor calculates the energy consumption of the peripheral equipment into the energy required by the work of the peripheral equipment, and the peripheral equipment is controlled through a photovoltaic curve.
The first control node comprises a plurality of symmetrical arranged on two sides of the second node, and the determination of the first control node is determined by the power of the photovoltaic panel, the power of the super capacitor and the power of the sensor body. Determining whether the power of the photovoltaic panel can meet the use requirement of the sensor body or not according to the difference value of the power of the photovoltaic panel, the power of the super capacitor and the power of the sensor body, and positioning a node of a photovoltaic power generation data curve as a first control node when the power of the photovoltaic panel is larger than the power of the super capacitor and the power of the sensor body; when the power of the photovoltaic panel only exceeds the power of the sensor body, the node of the photovoltaic power generation data curve is positioned as a second control node; when the power of the photovoltaic panel only exceeds the power of the super capacitor and the photoelectric conversion efficiency is low, the node of the photoelectric conversion data curve is positioned as the second control node. The electric quantity of the low-power consumption sensor is supplemented through the control of the first control node, and the additional energy utilization of the low-power consumption sensor in low power consumption is realized through the control of the second control node.
When the photovoltaic curve model is used, the second control node is used for controlling the working mode of the sensor body, and the sensor body and the photovoltaic panel are simultaneously controlled by the first control node on the basis.
The second control node comprises three judgment sub-terminals which are respectively positioned on the photovoltaic panel, the super capacitor and the sensor body, and the judgment sub-terminals are respectively provided with a current judgment circuit, and send electric quantity signals when the current reaches a set value. The judging sub-end positioned on the photovoltaic panel is used for detecting the working state of the photovoltaic panel, the judging sub-end positioned on the super capacitor is used for judging the power required by the super capacitor, and the judging sub-end positioned on the sensor body is used for judging the working state of the sensor body. The second control node is used for data centralized processing determination of the three judgment sub-ends, and state monitoring of the sensor body, the photovoltaic panel and the super capacitor can be achieved.
When the method is used, the second control node acquires working parameters from the three judging sub-ends, and then the first control node is determined.
In the first working mode, the photovoltaic panel is controlled by a switch of the photovoltaic panel; in the second mode of operation, the photovoltaic panel is controlled by the sensor body. The working mode switching of the photovoltaic panel is determined by the sensor body, and when a signal of a first control point on the photovoltaic curve works, the photovoltaic panel performs autonomous control to charge the super capacitor according to the signal; the sensor body controls the photovoltaic panel to supply power to the photovoltaic panel when the signal of the second control point on the photovoltaic curve works. The adaptation of the various modes of operation of the photovoltaic panel is achieved and the various modes of operation of the photovoltaic panel may coexist.
The working mode of the sensor body comprises door magnetic detection, temperature and humidity detection and human infrared detection, and the sensor body is provided with a communication module. The sensor body can be suitable for various sensors, so that the low-power consumption use of the sensor for various detection purposes is realized, and the universality is strong. The communication mode of the sensor body comprises NB-IoT, BLE and LoRa communication, and the power consumption of the sensor body is of uA level. The sensor body can carry out various communication, can be suitable for the multiple sensor of different usage of different communication modes, and the universality is strong.
As shown in fig. 2, in the second embodiment, after the sensor is powered on, the sensor is initialized first, and then the first service processing is performed (for example, the door sensor detects the door opening state, the temperature and humidity sensor detects the temperature and humidity data, and then the data is reported). After the business processing is completed, the sensor enters a low power consumption mode. If the sensor is in a normal illumination environment at this time, the photovoltaic panel can charge the super capacitor while meeting the requirement of power consumption of the sensor because the sensor is in a low power consumption mode. The electricity charged by the capacitor can be consumed by the whole machine in the next business processing and no illumination. After the sensor wakes up at regular time, the states of the battery, the capacitor and the photovoltaic are firstly judged, and if the output of the battery capacitor and the photovoltaic can not provide the energy required by the operation of the sensor, the sensor continues in a low-power consumption mode. If the battery or the capacitor is electrified, the sensor finishes the low-power consumption mode, enters the service processing, judges and outputs the working mode when the photovoltaic is electrified, judges the dark environment when the photovoltaic is unpowered, closes the power consumption of the peripheral equipment, and continues to enter the low-power consumption mode after the service processing.
While the invention has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.

Claims (10)

1. A photovoltaic-powered universal sensor, comprising: a sensor body; the sensor body is connected with a photovoltaic panel, and the photovoltaic panel is used for photovoltaic charging; the sensor body is connected with a super capacitor, and the super capacitor is used for supplying power to the sensor body and solving battery passivation; the sensor body is connected with a battery and is used for discharging when the photovoltaic panel and the super capacitor do not work; the sensor body is controlled by two different photovoltaic curves, and the photovoltaic panel is respectively provided with a first working mode and a second working mode when the sensor body is controlled by the two different photovoltaic curves.
2. The photovoltaic powered universal sensor of claim 1, wherein the sensor body includes a low power mode in which the photovoltaic panel charges the super capacitor and provides power for operation of the sensor body; the sensor body comprises a judging module, and the judging module is used for judging the working mode of the sensor body according to the photovoltaic data.
3. The universal sensor for photovoltaic power supply according to claim 2, wherein the judging module is located inside the sensor body, the judging module comprises a photovoltaic curve model, the photovoltaic curve model comprises a first control node and a second control node, the first control node is used for controlling the photovoltaic working mode, and the second control node is used for controlling the working mode of the sensor body.
4. A photovoltaic powered universal sensor as claimed in claim 3 wherein said first control node is provided with a super capacitor charging signal and said second control node is provided with a low power mode enabling signal; the super capacitor charging signal continuously works after triggering until triggering is stopped again.
5. A photovoltaic-powered universal sensor according to claim 2 or 3, wherein the sensor body is configured to turn off the peripheral device in the low power mode, and wherein the low power mode is configured to determine whether the battery or capacitor is powered at the same time when the low power mode is terminated, and wherein the sensor body is configured with a service module that is activated after the low power mode is terminated.
6. The photovoltaic-powered universal sensor of claim 4, wherein the first control node comprises a plurality of control nodes symmetrically arranged on both sides of the second node, and wherein the determination of the first control node is determined by the power of the photovoltaic panel, the power of the super capacitor and the power of the sensor body.
7. The universal sensor for photovoltaic power supply according to claim 6, wherein the second control node comprises three judgment sub-terminals, the three judgment sub-terminals are respectively located on the photovoltaic panel, the super capacitor and the sensor body, the judgment sub-terminals are respectively provided with a current judgment circuit, and the judgment sub-terminals send an electric quantity signal when the current reaches a set value.
8. A photovoltaic powered universal sensor as claimed in any of claims 1 or 7 wherein said photovoltaic panel is self-switching controlled in said first mode of operation; in the second working mode, the photovoltaic panel is controlled by the sensor body.
9. The universal sensor for photovoltaic power supply according to any one of claims 1 to 7, wherein the working modes of the sensor body comprise door magnetic detection, temperature and humidity detection and human infrared detection, and the sensor body is provided with a communication module.
10. A photovoltaic powered universal sensor according to any of claims 1 to 7, wherein the communication means of the sensor body comprises NB-IoT, BLE and LoRa communication, and the sensor body consumes a level uA.
CN202310074099.9A 2023-02-07 2023-02-07 General sensor of photovoltaic power supply Pending CN116388361A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310074099.9A CN116388361A (en) 2023-02-07 2023-02-07 General sensor of photovoltaic power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310074099.9A CN116388361A (en) 2023-02-07 2023-02-07 General sensor of photovoltaic power supply

Publications (1)

Publication Number Publication Date
CN116388361A true CN116388361A (en) 2023-07-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310074099.9A Pending CN116388361A (en) 2023-02-07 2023-02-07 General sensor of photovoltaic power supply

Country Status (1)

Country Link
CN (1) CN116388361A (en)

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