CN112653214A - Narrow-band Internet of things module power module based on button cell and super capacitor - Google Patents
Narrow-band Internet of things module power module based on button cell and super capacitor Download PDFInfo
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- CN112653214A CN112653214A CN202011500149.8A CN202011500149A CN112653214A CN 112653214 A CN112653214 A CN 112653214A CN 202011500149 A CN202011500149 A CN 202011500149A CN 112653214 A CN112653214 A CN 112653214A
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- super capacitor
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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
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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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
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
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- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a narrow-band Internet of things module power supply module based on a button battery and a super capacitor, which comprises a button lithium battery, a battery management module, a capacitor management module and the super capacitor, wherein the button lithium battery is connected with the battery management module through a power line; the button battery is a power source of the module, and the battery management module is used for realizing core monitoring and control of button battery output voltage and current management; the capacitor management module is used for monitoring and charging management of a super capacitor, and the super capacitor is an energy storage and external power supply module of the super capacitor. The module can increase the capacity and the endurance time of the power supply module.
Description
Technical Field
The invention relates to the technical field of narrow-band Internet of things module battery management, in particular to a narrow-band Internet of things module power supply module based on a button battery and a super capacitor.
Background
Cellular-based narrowband Internet of Things (Narrow Band Internet of Things, NB-IoT) its english abbreviation: NB-IoT, becomes an important branch of the world wide web. With the rapid development of NB-IoT technology and the increasing popularity of product applications, the importance of the management of the power module of the NB-IoT module in the application is increasingly prominent. Due to the limitation of the application environment of the NB-IoT module, a battery is required to be used as a power supply of the internet of things module to support the normal operation of the module. The main working states of the NB-IoT module comprise a dormant state, a data transmission state and a signal transmission state, the power consumption is low in the dormant state, the power is high only in a short time when the module is networked and data is transmitted, and the module is in the dormant state in most time periods in practical application. In order to meet the short-term high-power requirement, lithium batteries with strong output power and large volume are directly used as module power supplies in NB-IoT module power supply application at present, although the output capacity of the lithium batteries is strong, the volume of the lithium batteries often limits the application range of the IoT module, and the waste of electric energy of the lithium batteries is often caused under the condition that the lithium batteries cannot continuously work due to insufficient electric quantity.
Disclosure of Invention
In order to solve the technical problems, the invention provides a narrow-band internet of things module power supply module based on a button battery and a super capacitor, which mainly comprises the button battery, a battery management module, a capacitor management module and the super capacitor, wherein the battery management module is used for discharging the button battery and charging the super capacitor through the capacitor management module, so that the electric energy storage of the super capacitor is completed, and the electric energy output of the super capacitor is used for supporting normal work of an NB-IoT module, such as networking, data transmission and the like.
In order to achieve the technical effects, the invention adopts the following technical scheme:
a narrow-band Internet of things module power supply module based on a button battery and a super capacitor comprises a button lithium battery, a battery management module, a capacitor management module and the super capacitor; the button battery is a power source of the module, and the battery management module is used for realizing core monitoring and control of button battery output voltage and current management; the capacitor management module is used for monitoring and charging management of a super capacitor, and the super capacitor is an energy storage and external power supply module of the super capacitor.
The further technical scheme is that the button cell is used for outputting electric energy to charge the super capacitor.
The further technical scheme is that the battery management module has the functions of discharge current monitoring, discharge voltage monitoring and discharge channel control; the battery management module controls the button battery discharge channel to be opened and disconnected in combination with external charging requirements, monitors the output voltage and the output current of the button battery in real time, and controls the voltage and the current through the discharge control circuit, so that the button battery discharge management is realized.
The button lithium battery is charged by the super capacitor, and the charging voltage is monitored and controlled by the discharging control circuit, so that the charging voltage value is kept at a preset stable value, does not change along with the discharging voltage of the button battery and is in a voltage-stabilizing charging state; when the button lithium battery is in the process of charging the super capacitor, the discharge control circuit monitors and controls the charging current, the charging current does not exceed the maximum preset value through the limitation on the current, and the damage to the battery caused by the fact that the instantaneous charging current is too large due to too small internal resistance of the super capacitor is avoided.
The technical scheme is that the capacitor management module monitors the voltage of the super capacitor in real time, judges the charging requirement according to the working state and parameters of the super capacitor and sends signals for starting and stopping charging to a battery management system, so that the charging management of the super capacitor is realized.
The technical scheme is that when the super capacitor is in a discharging state and the voltage of the super capacitor is lower than a set starting charging voltage value, the capacitor management module sends a charging demand signal to the battery management module according to a management strategy to start charging the super capacitor; when the super capacitor is in a charging state and the voltage is charged to a set charging stop voltage value, the capacitor management module sends a charging stop signal to the battery management module to stop charging the super capacitor; when the external module is in a dormant state and the super capacitor is externally powered by low power, the capacitor management module judges whether to charge according to the current capacitor state and the current voltage value.
The technical scheme is that the super capacitor is a core power supply unit for supporting the NB-IoT module to work, when the electric quantity of the super capacitor is low, the voltage of the super capacitor reaches the voltage value for starting charging, the button battery charges the super capacitor, the super capacitor stores electric energy, the super capacitor stops charging after being fully charged, and when the NB-IoT module normally works at any time, the super capacitor discharges to supply power for the module.
The further technical scheme is that the internal resistance of the super capacitor is in milliohm level.
The further technical scheme is that the residual electric quantity monitoring and charging control in the super capacitor are managed in real time by a capacitor management module.
The technical scheme is that the battery management module and the capacitor management module have the functions of operation and logic processing and support the threshold setting of the whole power module. The method mainly comprises charging voltage, a maximum value of charging current, highest and lowest capacitance values and the like.
Compared with the prior art, the invention has the following beneficial effects: the button battery with higher energy density can be used as the NB-IoT module battery by the power module, so that the battery volume is effectively reduced, and the capacity of the power supply module can be increased by charging and storing energy of the capacitor; on the other hand, the utilization rate of the battery energy can be improved by using the battery and capacitor management unit, the energy waste that the traditional lithium battery cannot drive the system to work due to too low electric quantity and a new battery is replaced is avoided, and the endurance time of the NB-IoT module is further prolonged.
Drawings
FIG. 1 is a power module frame diagram of the present invention;
fig. 2 is a schematic view of embodiment 1 of the present invention.
Detailed Description
The invention will be further explained and explained with reference to the drawings and the embodiments.
The invention provides an NB-IoT module power module based on a super capacitor and a button cell, which mainly comprises the button cell, a cell management module, a capacitor management module and the super capacitor, wherein the modules mainly have the following functions:
(1) button cell
The button cell is used as a power source of the device and is also an output unit of electric energy, the electric energy output by the button cell finally realizes the charging of the super capacitor, and the power supply of the NB-IoT module is realized through the discharging of the super capacitor.
(2) Battery management module
The battery management module is a core monitoring and control module for realizing button battery output voltage and current management, and the main functions of the battery management module comprise: monitoring discharge current, monitoring discharge voltage and controlling a discharge channel; the battery management module controls the button battery discharge channel to be opened and disconnected in combination with external charging requirements, monitors the output voltage and the output current of the button battery in real time, and controls the voltage and the current through the discharge control circuit, so that the button battery discharge management is realized.
(3) Capacitor management module
The capacitor management module is used for monitoring and managing charging of the super capacitor, monitoring the voltage of the super capacitor in real time, judging the charging requirement according to the working state and parameters of the super capacitor, and sending signals for starting and stopping charging to the battery management system, so that the charging management of the super capacitor is realized.
(4) Super capacitor
The super capacitor is an energy storage and external power supply unit of the device and is a core power supply unit for supporting the work of the NB-IoT module, when the electric quantity of the super capacitor is low, the voltage of the super capacitor reaches the voltage value for starting charging, the button battery charges the super capacitor, the super capacitor stores electric energy, the super capacitor stops charging after being fully charged, and when the NB-IoT module normally works at any time, the super capacitor discharges to supply power for the module.
The working process is as follows:
(1) the battery management module acquires a charging demand signal of the capacitor management module, opens a charging channel, opens a button battery discharging channel, and the button battery starts to discharge outwards, so that the super capacitor is charged;
(2) in the charging process, the battery management module manages the whole discharging process of charging the super capacitor by aiming at the button battery. Monitoring and controlling the discharge voltage and the discharge current of the button battery in real time to ensure the stability of the charge voltage and the charge current; the capacitor management module monitors whether the electric quantity of the capacitor is full in real time, and when the voltage of the super capacitor reaches a full-charge voltage value, the capacitor management module sends a charging stop signal to the battery management module.
(3) And the battery management module receives the signal of stopping charging, controls to close the charging channel, and stops charging the super capacitor by the button battery.
(4) Super capacitor is used for the storage electric quantity, and the monitoring of the electric quantity of its storage and self demand of charging are managed by electric capacity management module, make super capacitor keep the state that the electric quantity is sufficient in real time, when the networking is carried out to the thing networking module, data transmission etc. need high-power supply operating condition, super capacitor provides the power supply through discharging to the thing networking module, supports the work of thing networking module.
Example 1
As shown in fig. 2, the whole power module mainly includes: the system comprises a battery control module B-Ctrl, a button battery B-cell, a capacitor management module C-Manage and a super capacitor S-cap, wherein the B-cell is used for charging the S-cap through the management control module, and finally the S-cap provides power for the work of an external module through discharging. In this example, it is assumed that: setting the charging voltage as U, setting the maximum value of the charging current as I, setting the lowest voltage of the S-cap as U _ min, setting the highest voltage as U _ max, and setting the voltage of the current S-cap to be less than U _ min;
the first step is as follows: B-Ctrl receives a charging request signal sent by C-Manage;
the second step is that: B-Ctrl controls the charging channel to be opened through an internal control circuit, at the moment, the B-cell charges S-cap through discharging, and the system enters a charging state;
the third step: in the charging process, B-Ctrl monitors the values of charging current and charging voltage in real time, whether the values are the same as the preset values or not, when the charging current is larger than U, the B-Ctrl controls the discharging voltage through a discharging circuit to keep the discharging voltage stable, and if the charging current is overlarge due to extremely low internal resistance of S-cap, the B-Ctrl controls the discharging current through the discharging current to enable the discharging current to be always lower than I so as to ensure normal discharging;
the fourth step: the electric quantity of the S-cap gradually rises, when the voltage value of the S-cap reaches U _ max, the charging is required to be stopped, and the C-Manage sends a request signal for stopping the charging;
the fifth step: B-Ctrl receives a charging stop request signal sent by C-Manage, controls the charging channel to be closed, stops discharging the button battery, and finishes the charging of the S-cap;
through the steps, the whole system finishes the charging process of the button cell to the super capacitor, in the scheme, the super capacitor provides power for the work of an NB-IoT module through discharging, after the capacitor discharges outwards, the electric quantity of the super capacitor is reduced, the electric quantity of the super capacitor is managed by the capacitor management module in real time, when the voltage value of the super capacitor is reduced to U _ min, the button cell discharging can be started again to charge the capacitor, the super capacitor keeps sufficient electric quantity, the power supply of the module can be guaranteed at any moment, the power supply module of the scheme is utilized, the button cell with high density and small volume is fully applied, the super capacitor is charged to store energy, the capacity of the power supply is improved, the electric energy of the button cell is effectively utilized through electric energy transfer, and the utilization rate of the electric energy is further improved.
Although the present invention has been described herein with reference to the illustrated embodiments thereof, which are intended to be preferred embodiments of the present invention, it is to be understood that the invention is not limited thereto, and that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure.
Claims (10)
1. A narrow-band Internet of things module power supply module based on a button battery and a super capacitor is characterized by comprising a button lithium battery, a battery management module, a capacitor management module and the super capacitor; the button battery is a power source of the module, and the battery management module is used for realizing core monitoring and control of button battery output voltage and current management; the capacitor management module is used for monitoring and charging management of a super capacitor, and the super capacitor is an energy storage and external power supply module of the super capacitor.
2. The narrow-band Internet of things module power module based on the button battery and the super capacitor as claimed in claim 1, wherein the button battery is used for outputting electric energy to charge the super capacitor.
3. The button cell and super capacitor based narrowband internet of things module power module according to claim 1, wherein the battery management module comprises functions of discharge current monitoring, discharge voltage monitoring, and discharge channel control; the battery management module controls the button battery discharge channel to be opened and disconnected in combination with external charging requirements, monitors the output voltage and the output current of the button battery in real time, and controls the voltage and the current through the discharge control circuit, so that the button battery discharge management is realized.
4. The narrow-band Internet of things module power module based on the button battery and the super capacitor as claimed in claim 3, wherein when the button lithium battery is in the process of charging the super capacitor, the discharge control circuit monitors and controls the charging voltage, so that the charging voltage value is kept at a preset stable value, does not change along with the discharging voltage of the button battery, and is in a stable charging state; when the button lithium battery is in the process of charging the super capacitor, the discharge control circuit monitors and controls the charging current, the charging current does not exceed the maximum preset value through the limitation on the current, and the damage to the battery caused by the fact that the instantaneous charging current is too large due to too small internal resistance of the super capacitor is avoided.
5. The button cell and super capacitor-based narrowband internet of things module power module according to claim 1, wherein the capacitor management module monitors the voltage of the super capacitor in real time, judges the charging requirement according to the working state and parameters of the super capacitor, and sends a signal for turning on and off the charging to a battery management system, thereby realizing the charging management of the super capacitor.
6. The button cell and super capacitor-based narrowband internet of things module power supply module according to claim 5, wherein when the super capacitor is in a discharging state, and when the voltage of the super capacitor is lower than a set charging starting voltage value, the capacitor management module sends a charging demand signal to the battery management module according to a management strategy to start charging the super capacitor; when the super capacitor is in a charging state and the voltage is charged to a set charging stop voltage value, the capacitor management module sends a charging stop signal to the battery management module to stop charging the super capacitor; when the external module is in a dormant state and the super capacitor is externally powered by low power, the capacitor management module judges whether to charge according to the current capacitor state and the current voltage value.
7. The button cell and super capacitor-based narrowband internet of things module power module of claim 1, wherein the super capacitor is a core power supply unit for supporting the operation of the NB-IoT module, when the super capacitor is low in power, the voltage of the super capacitor reaches a voltage value for starting charging, the button cell charges the super capacitor, the super capacitor stores electric energy, the super capacitor stops charging after being fully charged, and when the NB-IoT module normally operates at any time, the super capacitor discharges to supply power to the module.
8. The button cell and super capacitor based narrowband internet of things module power module of claim 7, wherein the internal resistance of the super capacitor is in milliohm.
9. The button cell and super capacitor-based narrowband internet of things module power module according to claim 1, wherein the monitoring of the remaining power and the charging control in the super capacitor are managed in real time by a capacitor management module.
10. The narrow-band Internet of things module power module based on the button battery and the super capacitor as claimed in claim 1, wherein the battery management module and the capacitor management module have operation and logic processing functions and support threshold setting of the whole power module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011500149.8A CN112653214A (en) | 2020-12-17 | 2020-12-17 | Narrow-band Internet of things module power module based on button cell and super capacitor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011500149.8A CN112653214A (en) | 2020-12-17 | 2020-12-17 | Narrow-band Internet of things module power module based on button cell and super capacitor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115001122A (en) * | 2022-08-04 | 2022-09-02 | 深圳市今朝时代股份有限公司 | Super capacitor electric energy storage management system based on data analysis |
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| CN206024120U (en) * | 2016-08-30 | 2017-03-15 | 集速智能标签（上海）有限公司 | A kind of Bluetooth beacon equipment |
| CN209748246U (en) * | 2019-04-04 | 2019-12-06 | 西安美钛物联科技有限公司 | NB-IOT electronic tag with multiple power interfaces |
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2020
- 2020-12-17 CN CN202011500149.8A patent/CN112653214A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720672A (en) * | 2016-01-19 | 2016-06-29 | 黄余良 | Energy storage management control system |
| CN206024120U (en) * | 2016-08-30 | 2017-03-15 | 集速智能标签（上海）有限公司 | A kind of Bluetooth beacon equipment |
| CN209748246U (en) * | 2019-04-04 | 2019-12-06 | 西安美钛物联科技有限公司 | NB-IOT electronic tag with multiple power interfaces |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115001122A (en) * | 2022-08-04 | 2022-09-02 | 深圳市今朝时代股份有限公司 | Super capacitor electric energy storage management system based on data analysis |
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