CN114552031B - Anti-passivation circuit, storage medium, anti-passivation system, and control method - Google Patents
Anti-passivation circuit, storage medium, anti-passivation system, and control method Download PDFInfo
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- CN114552031B CN114552031B CN202210040775.6A CN202210040775A CN114552031B CN 114552031 B CN114552031 B CN 114552031B CN 202210040775 A CN202210040775 A CN 202210040775A CN 114552031 B CN114552031 B CN 114552031B
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- 238000002161 passivation Methods 0.000 title claims abstract description 103
- 238000000034 method Methods 0.000 title claims abstract description 50
- 238000004891 communication Methods 0.000 claims abstract description 171
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims abstract description 52
- 229910001416 lithium ion Inorganic materials 0.000 claims abstract description 52
- 230000004622 sleep time Effects 0.000 claims abstract description 29
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 11
- 230000005059 dormancy Effects 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 66
- 238000005070 sampling Methods 0.000 claims description 21
- 230000007958 sleep Effects 0.000 claims description 16
- 238000004590 computer program Methods 0.000 claims description 4
- 238000007654 immersion Methods 0.000 claims description 4
- 230000003068 static effect Effects 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 230000004617 sleep duration Effects 0.000 claims description 3
- 230000002265 prevention Effects 0.000 abstract description 7
- 230000006870 function Effects 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- 230000005611 electricity Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
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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
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses an anti-passivation circuit, a storage medium, an anti-passivation system and a control method, wherein the anti-passivation system comprises a lithium sub-battery and a communication module, and the control method of the anti-passivation system comprises the steps of obtaining the sleep time of the lithium sub-battery; when the dormancy time length reaches a first preset time length, outputting a wakeup command and a first communication signal, and resetting the dormancy time length; according to the wake-up command, the communication module is controlled to start working and the first communication signal is sent to external communication equipment, and the technical problem that an additional non-useful power circuit is required in the lithium-ion battery passivation prevention scheme in the prior art is solved.
Description
Technical Field
The invention relates to the technical field of battery passivation prevention, in particular to a passivation prevention circuit, a storage medium, a passivation prevention system and a control method.
Background
Most of the existing battery devices are powered by 3V batteries, and the existing battery devices are large in size, low in energy density and low in voltage. This results in a reduced standby period for the same volume of equipment and a need for boosting of some products. The user needs to replace the battery frequently. The lithium-ion battery has high energy density and 3.6V voltage, can be directly used by most devices, but can stand by when not triggered, the standby current is very small, and the lithium-ion battery can generate passivation phenomenon under the condition of low current, so that the voltage is low, the lithium-ion battery cannot be used, and the maximum performance of the battery cannot be exerted. It is an option to add voltage sensing, current load switching, load circuits to activate the lithium-ion battery, and the added circuitry is only available to activate the lithium-ion battery, adding to the cost and non-useful power circuitry.
Disclosure of Invention
The invention aims to provide an anti-passivation circuit, a storage medium, an anti-passivation system and a control method, which are used for solving the problem that an invalid circuit needs to be added in the scheme for preventing passivation of a lithium-ion battery in the prior art.
In order to achieve the above object, the present application proposes an anti-passivation system control method, the anti-passivation system including a lithium-ion battery and a communication module, the anti-passivation system control method comprising:
acquiring the sleep time of a lithium battery;
when the dormancy time length reaches a first preset time length, outputting a wakeup command and a first communication signal, and resetting the dormancy time length;
and controlling the communication module to start working according to the wake-up command and sending the first communication signal to external communication equipment.
Optionally, the passivation preventing system control method further includes:
acquiring a signal when water is met;
and controlling the communication module to output a corresponding second communication signal containing water meeting information according to the water meeting signal.
Optionally, after the controlling the communication module to output the corresponding second communication signal including the water meeting information according to the water meeting signal further includes:
acquiring the return arrival information of the external communication equipment;
controlling the communication module and the lithium-ion battery to sleep and accumulating sleep time;
and when the sleep time length meets a second preset time length, re-executing the step of acquiring the sleep time length of the lithium-ion battery.
To achieve the above object, the present application proposes an anti-passivation circuit, including:
the control module is used for accumulating the sleep time, outputting a wake-up command and a first communication signal when the sleep time reaches a first preset time, and resetting the sleep time;
the communication module, the controlled end of communication module with control signal output end electricity of control module is connected, communication module's communication signal end with control module's communication signal end electricity is connected, control module's power end with communication module's power end is connected to the lithium subunit battery respectively to be used for when receiving the awakening command, begin work and send first communication signal to external communication equipment.
Optionally, the communication module includes;
the communication terminal of the communication chip of the Internet of things is a communication signal terminal of the communication module, and the controlled terminal of the communication chip of the Internet of things is a controlled terminal of the communication module and is used for starting working and converting the first communication signal into an analog signal when a wake-up command is received;
the signal input end of the radio frequency antenna is connected with the output end of the communication chip of the Internet of things and is used for sending the analog signals to external communication equipment.
Optionally, the passivation preventing circuit further comprises a water immersion sensor, and an output end of the water immersion sensor is connected with an acquisition end of the control module;
the water immersion sensor is used for triggering a water-encountering signal when the passivation-preventing circuit encounters water and sending the water-encountering signal to the control module;
and the control module is also used for outputting a corresponding second communication signal containing water meeting information when receiving the water meeting signal.
Optionally, the control module is a main control chip or a singlechip.
Optionally, the anti-passivation circuit further comprises a voltage analog sampling module and an operational amplifier module, wherein the output end of the voltage analog sampling module is connected with the input end of the operational amplifier module, and the output end of the operational amplifier module is connected with the acquisition end of the control module;
the voltage simulation sampling module is provided with a first sampling point and a second sampling point and is used for collecting a voltage signal of the change when the voltage between the first sampling point and the second sampling point changes due to water;
the operational amplifier module is used for amplifying the voltage signal to obtain a water meeting signal and sending the water meeting signal to the control module;
and the control module is also used for outputting a corresponding second communication signal containing water meeting information to external communication equipment when the water meeting signal is received, resetting the dormancy duration, and controlling the control module and the communication module to carry out dormancy after receiving the return arrival information of the external communication equipment.
Optionally, the type of the communication chip of the internet of things is SX1276.
Optionally, the working current of the communication module for sending the first communication signal is 100MA, and the duration time is 40-50 ms, so that the lithium-ion battery is ensured to be fully activated.
Optionally, the passivation preventing circuit further comprises a lithium-ion battery, wherein an output end of the lithium-ion battery is connected to a power end of the control module and the communication module, and provides working power for the control module and the communication module.
In order to achieve the above object, the present application further proposes a storage medium, which when executed by a processor causes the processor to perform the steps of the anti-passivation system control method as described above.
In order to achieve the above object, the present application also proposes an anti-passivation system comprising a memory and a processor, the memory storing a computer program which, when executed by the processor, causes the processor to perform the steps of the anti-passivation system control method as described above.
Optionally, the passivation preventing system further comprises a gateway, and the gateway is in communication connection with the communication module.
The method comprises the steps of firstly obtaining the sleep time length of the lithium battery by using an anti-passivation system control method in the lithium battery and a communication module, outputting a wake-up command and a first communication signal when the sleep time length reaches a first preset time length, and resetting the sleep time length; the communication module is used for starting working and sending the first communication signal to external communication equipment when receiving the wake-up command, so that the communication module can be ensured to trigger working once at intervals of a first preset time length, namely, the lithium battery for supplying power to the communication module is ensured to be in an active state all the time, and passivation phenomenon can not occur. The invention solves the problem that the scheme for preventing the passivation of the lithium-ion battery in the prior art needs to be added with an useless circuit by utilizing the communication module of the passivation preventing system and the control method of the passivation preventing system.
Drawings
The invention is further described below with reference to the drawings and examples;
FIG. 1 is a flow chart of a method of controlling an anti-passivation system according to one embodiment;
FIG. 2 is a schematic block diagram of an anti-passivation circuit in one embodiment.
FIG. 3 is a schematic block diagram of an anti-passivation circuit in one embodiment.
FIG. 4 is a schematic block diagram of an anti-passivation circuit in one embodiment.
FIG. 5 is a schematic block diagram of an anti-passivation circuit in one embodiment.
Detailed Description
Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present invention, but not to limit the scope of the present invention.
The invention provides a control method of an anti-passivation system of an anti-passivation circuit, which is used for solving the problem that an anti-passivation scheme of a lithium sub-battery in the prior art needs to be added with an useless power circuit.
In one embodiment, the passivation preventing system comprises a lithium-ion battery and a communication module, and the passivation preventing system control method comprises the following steps:
s1, acquiring the sleep time of a lithium-ion battery;
at this time, the sleep time of the lithium-ion battery can be obtained through a timing module carried by the control module, or an external timing module or a monitoring module carried by the lithium-ion battery.
S2, outputting a wake-up command and a first communication signal when the sleep time length reaches a first preset time length, and resetting the sleep time length;
the first preset time length is set according to the requirement, when the first preset time length is met, a wake-up command and a first communication signal are output, the sleep time length is cleared, and the process can be realized through a control module or other processing equipment.
S3, controlling the communication module to start working according to the wake-up command and sending the first communication signal to external communication equipment.
In the above embodiment, when the communication module receives the wake-up command, the communication module starts to work and sends the first communication signal to the external communication device, so that the communication module can be ensured to trigger the work once at intervals of a first preset time length, that is, the lithium-ion battery for supplying power to the communication module is always in an active state, and passivation phenomenon cannot occur. The invention solves the problem that the scheme for preventing the passivation of the lithium-ion battery in the prior art needs to be added with an useless power circuit by utilizing the communication module. Particularly, the communication module realizes a communication function in a general circuit, and in the application, the control module realizes the function of opening the communication module at regular time to discharge the lithium-ion battery, so that passivation of the lithium-ion battery is avoided, and the communication circuit can develop other new functions, such as reporting the remaining battery power, positioning, talking and the like, so that the increase of the non-useful power circuit is avoided.
In an embodiment, the passivation preventing system control method further includes:
acquiring a signal when water is met;
the water meeting signal at this time can be obtained by a sensor or a monitoring circuit.
And controlling the communication module to output a corresponding second communication signal containing water meeting information according to the water meeting signal.
Through the process, the waterproof protection of the passivation prevention system can be realized.
In an embodiment, after the controlling the communication module to output the corresponding second communication signal including the water meeting information according to the water meeting signal further includes:
acquiring the return arrival information of the external communication equipment;
the return arrival information at this time is information such as a command of "received data".
Controlling the communication module and the lithium-ion battery to sleep and accumulating sleep time;
and when the water-meeting time length meets a second preset time length, re-executing the step of acquiring the sleep time length of the lithium-ion battery.
Through the process, effective outgoing of the water information can be ensured, and then the communication module is controlled to sleep, so that the safety of the passivation preventing system can be ensured. And re-accumulating the sleep time period after that can ensure the effective operation of the anti-passivation system control method.
In an embodiment, as shown in fig. 2, the passivation preventing system control method of the passivation preventing circuit includes a control module 20 and a communication module 30, wherein a controlled end of the communication module 30 is electrically connected to a control signal output end of the control module 20, a communication signal end of the communication module 30 is electrically connected to a communication signal end of the control module 20, and a power end of the control module 20 and a power end of the communication module 30 are respectively connected to the lithium sub-battery 10.
The control module 20 accumulates the sleep time, outputs a wake-up command and a first communication signal when the sleep time reaches a first preset time, clears the sleep time, and starts working and sends the first communication signal to the external communication device when the communication module 30 receives the wake-up command, so that the communication module 30 can be ensured to trigger working once at intervals of the first preset time, that is, the lithium ion battery 10 for supplying power to the communication module 30 is always in an active state, and passivation phenomenon cannot occur. The above-described invention solves the problem that the prior art solution for preventing passivation of the lithium-ion battery 10 requires the addition of an invalid circuit by using the control module 20 and the communication module 30. In particular, in the present embodiment, the control module 20 may be various control circuits commonly used in the charging system of the lithium-ion battery 10. In addition, the communication module 30 realizes a communication function in a general circuit, and in the application, by combining the control module 20 with the communication module 30, the communication module 30 is opened at regular time to discharge the lithium-ion battery 10, so that passivation of the lithium-ion battery 10 is avoided, and the communication circuit can develop other new functions, such as reporting the battery allowance, positioning, talking, etc., so that the increase of invalid circuits is avoided. The functions of the control module 20 at this time are realized by programming.
In the above embodiment, the control module 20 may also start internal timing interrupt to wake up automatically before dormancy, count a number of times (zero clearing after active triggering) according to the timing length, and the number of times reaches a certain number, and then actively trigger the operation once, so that the lithium-ion battery 10 is always in an active state by using the large current and the communication time when the communication module 30 is operated, and no passivation phenomenon occurs.
Optionally, the first preset duration is less than 24 hours. By the scheme, the battery can be ensured to be discharged at least once a day. So that the lithium-ion battery 10 is always in an active state and no passivation phenomenon occurs.
Based on the above embodiment, when the device having the lithium-ion battery 10 originally has a call function, such as an intelligent wearable device, a portable device, a mobile communication device, etc., only the above circuit function needs to be implemented in hardware, so that the passivation of the lithium-ion battery 10 can be implemented without adding a hardware circuit, and the cost is greatly saved.
It should be noted that, the first preset duration may be determined by a laboratory measured passivation-preventing optimal sleep duration, and under this duration, the life and the functions of the lithium-ion battery 10 may be preserved to the greatest extent.
In an embodiment, as shown in fig. 3, the communication module 30 includes an internet of things communication chip 301 and a radio frequency antenna 302, a communication end of the internet of things communication chip 301 is a communication signal end of the communication module 30, a controlled end of the internet of things communication chip 301 is a controlled end of the communication module 30, and a signal input end of the radio frequency antenna 302 is connected with an output end of the internet of things communication chip 301.
When the communication chip 301 of the internet of things receives the wake-up command, it starts to work and converts the first communication signal into an analog signal, and the radio frequency antenna 302 sends the analog signal to an external communication device.
In one embodiment, as shown in fig. 4, the passivation preventing system control method of the passivation preventing circuit further includes a water sensor 40, and an output end of the water sensor 40 is connected to the collection end of the control module 20.
The water sensor 40 triggers a water meeting signal when the passivation preventing system control method of the passivation preventing circuit meets water and sends the water meeting signal to the control module 20, and the control module 20 outputs a corresponding second communication signal containing water meeting information when receiving the water meeting signal. The scheme can rapidly detect whether the control method of the anti-passivation system of the anti-passivation circuit meets water.
Optionally, the type of the internet of things communication chip 301 is SX1276.
The SX1276 is a LORA (Long Range Radio) narrowband internet of things communication chip 301, and is responsible for data communication between the device and the gateway. For example, reporting the "water present" information data, the first communication signal and the interaction data.
In one embodiment, the working current of the communication module 30 for transmitting the first communication signal is 100MA, and the duration is 40-50 ms, so as to ensure that the lithium-ion battery is fully activated.
Through setting up operating current, can guarantee that lithium inferior battery realizes preventing the abundant discharge of passivation, in addition, through setting up continuous operating time, can reduce the energy consumption of discharge process.
Optionally, the control module 20 is a main control chip or a single chip microcomputer.
The main control chip drives the SX1276 chip through the SPI and processes the interaction of the data of the equipment and the gateway and the passivation prevention time control.
Based on the above embodiment, with the first preset time being 20 hours, the MCU is the main control chip of the water sensor 40, after the device encounters water, the voltage analog sampling chip transmits data to the signal amplifier, the signal amplifier chip generates a super-threshold pulse to the MCU, the MCU finishes deep sleep after receiving a wake-up interrupt, the program starts, sends a command to wake SX1276 through the SPI interface, sends data "with water" to SX1276, sends information of water detected to the gateway according to the designated frequency and rate, and SX1276 consumes 100MA of current when sending data, lasting 40-50 ms. After the command transmission is completed, SX1276 enters a reception waiting state. After the gateway receives the information, it replies a command of "received data" to the water sensor 40. After the water logging sensor 40 confirms that the gateway receives data, the MCU controls the SX1276 chip to enter a sleep mode, starts an RTC timing wake-up program, then the MCU also enters sleep, the sleep current is about 10uA (the work of the current level for a long time can lead to passivation of the lithium-ion battery 10), the RTC function of the MCU starts timing after sleep, the MCU wakes up and counts 1 time every 2 hours, and after the count reaches 10 times, the communication module 30 is started to send communication data of normal work to the gateway to perform equipment state on-line synchronization, and 100mA current is consumed for 40-50 milliseconds for each communication. The activity of the lithium-ion battery 10 is ensured. If a water leakage event occurs in the process, the triggerless count is cleared. Thereby not only saving electricity but also ensuring the activity of the lithium-ion battery 10. And the electricity safety is ensured.
In an embodiment, as shown in fig. 5, the anti-passivation system control method of the anti-passivation circuit further includes a voltage analog sampling module 501 and an operational amplifier module 502, wherein an output end of the voltage analog sampling module 501 is connected with an input end of the operational amplifier module 502, and an output end of the operational amplifier module 502 is connected with an acquisition end of the control module 20; the voltage analog sampling module 501 has a first sampling point and a second sampling point.
The voltage analog sampling module 501 is configured to collect the voltage signal when the voltage between the first collecting point and the second collecting point changes due to water, the op-amp module 502 amplifies the voltage signal to obtain a water signal and sends the water signal to the control module 20, when the control module 20 receives the water signal, it outputs a corresponding second communication signal containing the water information to an external communication device and clears the sleep duration, and when receiving the return arrival information of the external communication device, it controls the control module 20 and the communication module 30 to sleep.
Through the embodiment, reasonable collection of water can be realized, and after water is judged, the control module 20 and the communication module 30 are controlled to sleep, so that a good home protection function is achieved.
Based on the embodiment, an operational amplifier with ultra-low power consumption can be selected for voltage analog quantity acquisition, an operational amplifier paranoid circuit with ultra-low power consumption is designed, and 2 sampling points are connected in parallel to a static paranoid circuit to form a parallel connection relationship with a static paranoid resistor. By utilizing the characteristics (resistance) of the conductive medium of water, when water is detected at two ends of a sampling point, resistance is generated, static paranoid resistance is changed, and voltage is slightly changed. After the weak change is amplified by the operational amplifier, the corresponding data can be sent to the main control chip or the singlechip.
In an embodiment, the passivation preventing circuit further includes a lithium-ion battery 10, and an output terminal of the lithium-ion battery 10 is connected to a power terminal of the control module 20 and the communication module 30, and provides an operating power for the control module 20 and the communication module 30.
The lithium-ion battery 10 in the control method of the anti-passivation circuit anti-passivation system can realize effective passivation prevention of the lithium-ion battery 10.
The invention also proposes a storage medium, which when executed by a processor causes the processor to perform the steps of the anti-passivation system control method as described above.
It should be noted that, since the storage medium of the present application includes all the steps of the above anti-passivation system control method, the storage medium may also implement all the schemes of the anti-passivation system control method, and have the same beneficial effects, which are not described herein again.
The anti-passivation system control method in the method embodiment is executed. The above described apparatus embodiments are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, i.e. may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage 15 storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism 20 and may include any information delivery media.
The invention also proposes an anti-passivation system comprising an anti-passivation circuit as described above. Or the anti-passivation system comprises a memory and a processor, the memory storing a computer program which, when executed by the processor, causes the processor to perform the steps of the anti-passivation system control method as described above.
It should be noted that, since the passivation preventing system of the present application includes all the steps of the passivation preventing system control method, the passivation preventing system may also implement all the schemes of the passivation preventing system control method, and have the same beneficial effects, which are not described herein again.
Alternatively, the memory and processor may constitute a single-chip microcomputer to perform the steps of the anti-passivation system control method as described above.
In one embodiment, the passivation preventing system further comprises a gateway communicatively coupled to the communication module 30.
The radio frequency antenna can send signals to the gateway, and send information of water detection to the gateway according to the designated frequency and speed, and the SX1276 consumes 100MA current for 40-50 milliseconds when sending data. After the command transmission is completed, SX1276 enters a reception waiting state. After the gateway receives the information, the gateway replies a command of 'received data' to the water logging sensor. After the water logging sensor confirms that the gateway receives data, the MCU controls the SX1276 chip to enter a sleep mode, starts an RTC timing awakening program, then the MCU also enters sleep, the sleep current is about 10uA (the work of the current magnitude can lead to passivation of the lithium-ion battery for a long time), the RTC function of the MCU starts timing after sleep, the MCU wakes up and counts 1 time every 2 hours, and after the count reaches 10 times, the communication module is started to send communication data of normal work once to the gateway to perform equipment state on-line synchronization, and 100mA current is consumed for 40-50 milliseconds for each communication. The activity of the lithium-ion battery is ensured. If a water leakage event occurs in the process, the triggerless count is cleared. Thereby saving electricity and ensuring the activity of the lithium-ion battery.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
Claims (9)
1. An anti-passivation circuit, the anti-passivation circuit comprising: the control module is used for accumulating the sleep time of the lithium-ion battery, outputting a wake-up command and a first communication signal when the sleep time reaches a first preset time, and resetting the sleep time;
the communication module is electrically connected with the control signal output end of the control module at the controlled end, the communication signal end of the communication module is electrically connected with the communication signal end of the control module, the power end of the control module and the power end of the communication module are respectively connected to the lithium-ion battery and used for starting working and sending the first communication signal to external communication equipment when the wake-up command is received;
the anti-passivation circuit further comprises a voltage analog sampling module and an operational amplifier module, wherein the output end of the voltage analog sampling module is connected with the input end of the operational amplifier module, and the output end of the operational amplifier module is connected with the acquisition end of the control module;
the voltage analog sampling module is provided with a first sampling point and a second sampling point;
the operational amplifier module designs an operational amplifier paranoid circuit, the first acquisition point and the second acquisition point are connected in parallel to the paranoid circuit to form a parallel relation with a paranoid resistor, when water is detected at two ends of the acquisition point, the resistor is generated, the static paranoid resistor is changed, the voltage is slightly changed, and after the weak change is amplified by the operational amplifier, corresponding data are sent to the control module;
the control module is further configured to output a corresponding second communication signal including water meeting information to an external communication device when the second communication signal is received, clear the sleep duration, and control the control module and the communication module to sleep after receiving the return arrival information of the external communication device.
2. An anti-passivation circuit according to claim 1, wherein the communication module comprises;
the communication terminal of the communication chip of the Internet of things is a communication signal terminal of the communication module, and the controlled terminal of the communication chip of the Internet of things is a controlled terminal of the communication module and is used for starting working and converting the first communication signal into an analog signal when a wake-up command is received;
the signal input end of the radio frequency antenna is connected with the output end of the communication chip of the Internet of things and is used for sending the analog signals to external communication equipment.
3. The anti-passivation circuit of claim 1, further comprising a water sensor, an output of the water sensor being connected to the collection end of the control module;
the water immersion sensor is used for triggering a water-encountering signal when the passivation-preventing circuit encounters water and sending the water-encountering signal to the control module;
and the control module is also used for outputting a corresponding second communication signal containing water meeting information when receiving the water meeting signal.
4. An anti-passivation circuit according to claim 1, further comprising a lithium-ion battery, wherein an output of the lithium-ion battery is connected to the power terminals of the control module and the communication module and provides a working power supply for the control module and the communication module.
5. An anti-passivation system control method applied to the anti-passivation circuit of claim 1, wherein the anti-passivation system comprises a lithium-ion battery and a communication module, and the anti-passivation system control method comprises the following steps:
acquiring the sleep time of a lithium battery;
when the dormancy time length reaches a first preset time length, outputting a wakeup command and a first communication signal, and resetting the dormancy time length;
and controlling the communication module to start working according to the wake-up command and sending the first communication signal to external communication equipment.
6. An anti-passivation system control method as set forth in claim 5, further comprising:
acquiring a signal when water is met;
controlling the communication module to output corresponding second communication containing water meeting information according to the water meeting signal
A signal.
7. The passivation preventing system control method according to claim 6, wherein the controlling the communication module to output the corresponding second communication signal including the water meeting information according to the water meeting signal further comprises:
acquiring the return arrival information of the external communication equipment;
controlling the communication module and the lithium-ion battery to sleep and accumulating sleep time;
when the sleep time length meets a second preset time length, re-executing and acquiring the sleep time length of the lithium-ion battery
Is carried out by a method comprising the steps of.
8. A storage medium, characterized in that a computer program, when executed by a processor, causes the processor to perform the steps of the anti-passivation system control method according to any one of claims 5-7.
9. An anti-passivation system, characterized in that it comprises a memory and a processor, the memory storing a computer program which, when executed by the processor, causes the processor to perform the steps of the anti-passivation system control method according to any one of claims 5 to 7.
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