CN114552031A - 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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- CN114552031A CN114552031A CN202210040775.6A CN202210040775A CN114552031A CN 114552031 A CN114552031 A CN 114552031A CN 202210040775 A CN202210040775 A CN 202210040775A CN 114552031 A CN114552031 A CN 114552031A
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- 238000002161 passivation Methods 0.000 title claims abstract description 98
- 238000000034 method Methods 0.000 title claims abstract description 50
- 238000004891 communication Methods 0.000 claims abstract description 166
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 53
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 53
- 230000036578 sleeping time Effects 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 52
- 230000005059 dormancy Effects 0.000 claims description 23
- 230000002265 prevention Effects 0.000 claims description 13
- 238000005070 sampling Methods 0.000 claims description 13
- 230000007958 sleep Effects 0.000 claims description 12
- 230000004622 sleep time Effects 0.000 claims description 7
- 238000004590 computer program Methods 0.000 claims description 4
- 238000007654 immersion Methods 0.000 claims description 2
- 230000006870 function Effects 0.000 description 11
- 230000008569 process Effects 0.000 description 7
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 230000001960 triggered effect Effects 0.000 description 4
- 230000003068 static effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002452 interceptive effect Effects 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
- 230000008054 signal transmission Effects 0.000 description 1
- 230000004617 sleep duration Effects 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
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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
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- 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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- Chemical & Material Sciences (AREA)
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- 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; when the sleeping time reaches a first preset time, outputting a wakeup command and a first communication signal, and resetting the sleeping time; according to the scheme, the technical problem that a circuit with useless work needs to be added in the scheme for preventing the lithium sub-battery from being passivated in the prior art is solved.
Description
Technical Field
The invention relates to the technical field of battery passivation prevention, in particular to an anti-passivation circuit, a storage medium, an anti-passivation system and a control method.
Background
Most of the existing battery equipment uses 3V batteries for power supply, and has large volume, low energy density and low voltage. Therefore, the standby life of the device with the same volume is short, and partial products need to be boosted. The user needs to change the battery frequently. The lithium sub-battery has high energy density, 3.6V voltage can be directly used by most devices, but can stand by when not triggered, the standby current is very small, the lithium sub-battery can be passivated under the condition of low current, the voltage is low, the lithium sub-battery cannot be used, and the maximum performance of the battery cannot be exerted. The method is to activate the lithium sub-battery by adding a voltage detection circuit, a current load switch and a load circuit, and the added circuit can only be used for activating the lithium sub-battery, so that useless work circuits and cost are increased.
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 the passivation of a lithium sub-battery in the prior art.
In order to achieve the above object, the present application provides an anti-passivation system control method, the anti-passivation system including a lithium sub-battery and a communication module, the anti-passivation system control method including:
acquiring the dormancy duration of the lithium secondary battery;
when the sleeping time reaches a first preset time, outputting a wakeup command and a first communication signal, and resetting the sleeping time;
and controlling a communication module to start working according to the awakening command and sending the first communication signal to external communication equipment.
Optionally, the passivation prevention system control method further includes:
acquiring a water meeting signal;
and controlling the communication module to output a corresponding second communication signal containing water-meeting information according to the water-meeting signal.
Optionally, the control according to the water signal still includes after the second communication signal that communication module output includes water information that corresponds:
acquiring return arrival information of the external communication equipment;
controlling the communication module and the lithium sub-battery to sleep and accumulating sleep time;
and when the dormancy duration meets a second preset duration, re-executing the step of acquiring the dormancy duration of the lithium subcell.
In order to achieve the above object, the present application proposes an anti-passivation circuit including:
the control module is used for accumulating the sleeping time, outputting a wakeup command and a first communication signal when the sleeping time reaches a first preset time, and resetting the sleeping time;
the controlled end of the communication module is electrically connected with the control signal output end of the control module, the communication signal end of the communication module is electrically connected with the communication signal end of the control module, and the power end of the control module and the power end of the communication module are respectively connected to the lithium secondary battery and used for starting to work and sending the first communication signal to external communication equipment when receiving a wake-up command.
Optionally, the communication module comprises;
the communication end of the Internet of things communication chip is a communication signal end of the communication module, and the controlled end of the Internet of things communication chip is a controlled end of the communication module and is used for starting working and converting the first communication signal into an analog signal when receiving a wake-up command;
and the signal input end of the radio frequency antenna is connected with the output end of the Internet of things communication chip and is used for sending the analog signal to external communication equipment.
Optionally, the anti-passivation circuit further comprises a water sensor, and an output end of the water 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 the water meeting signal is received.
Optionally, the control module is a main control chip or a single chip microcomputer.
Optionally, the anti-passivation circuit further comprises a voltage analog sampling module and an operational amplifier module, an output end of the voltage analog sampling module is connected with an input end of the operational amplifier module, and an output end of the operational amplifier module is connected with an acquisition end of the control module;
the voltage analog sampling module is provided with a first acquisition point and a second acquisition point and is used for acquiring a changed voltage signal when the voltage between the first acquisition point and the second acquisition point changes due to water;
the operational amplifier module is used for amplifying the voltage signal to obtain a water-encountering signal and sending the water-encountering signal to the control module;
the control module is further configured to output a corresponding second communication signal containing water-meeting information to the external communication device and clear the dormancy duration when receiving the water-meeting signal, and control the control module and the communication module to perform dormancy after receiving the return arrival information of the external communication device.
Optionally, the model of the internet of things communication chip is SX 1276.
Optionally, the communication module sends the first communication signal with an operating current of 100MA and a duration of 40-50 ms, so as to ensure that the lithium subcell is sufficiently activated.
Optionally, the anti-passivation circuit further includes a lithium secondary battery, and an output end of the lithium secondary battery is connected to the power ends of the control module and the communication module and provides a working power supply for the control module and the communication module.
In order to achieve the above object, the present application 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.
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 anti-passivation system further includes a gateway, and the gateway is in communication connection with the communication module.
According to the invention, by using the passivation prevention system control method in the lithium secondary battery and the communication module, firstly, the dormancy duration of the lithium secondary battery is obtained, and when the dormancy duration reaches a first preset duration, a wake-up command and a first communication signal are output, and the dormancy duration is cleared; the communication module is used for starting to work and sending the first communication signal to external communication equipment when receiving a wake-up command, so that the communication module can be triggered to work once at a first preset time interval, namely, 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 a circuit with useless work needs to be added in the scheme for preventing the lithium sub-battery from being passivated in the prior art by utilizing the communication module of the anti-passivation system and the control method of the anti-passivation system.
Drawings
The invention is further described below with reference to the accompanying drawings and examples;
FIG. 1 is a schematic flow chart of a control method of an anti-passivation system in one embodiment;
FIG. 2 is a block diagram of an anti-passivation circuit in one embodiment.
FIG. 3 is a block diagram of an anti-passivation circuit in one embodiment.
FIG. 4 is a block diagram of an anti-passivation circuit in one embodiment.
FIG. 5 is a block diagram of an anti-passivation circuit in one embodiment.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
The invention provides a control method of an anti-passivation system of an anti-passivation circuit, which is used for solving the problem that a useless power circuit needs to be added in the scheme for preventing passivation of a lithium sub-battery in the prior art.
In one embodiment, the anti-passivation system comprises a lithium subcell and a communication module, and the control method of the anti-passivation system comprises the following steps:
s1, acquiring the dormancy duration of a lithium secondary battery;
at this time, the dormancy duration of the lithium secondary battery can be acquired through a timing module carried by the control module, or an external timing module, or a monitoring module carried by the lithium secondary battery.
S2, outputting a wake-up command and a first communication signal when the dormancy duration reaches a first preset duration, and resetting the dormancy duration;
and when the first preset time length is met, outputting a wakeup command and a first communication signal, and resetting the dormancy time length, wherein the process can be realized by a control module or other processing equipment.
And S3, controlling a communication module to start working according to the awakening command and sending the first communication signal to external communication equipment.
In the above embodiment, the communication module starts to operate and sends the first communication signal to the external communication device when receiving the wake-up command, so that the communication module can be triggered to operate once at a first preset time interval, that is, the lithium-ion secondary battery supplying power to the communication module is always in an active state, and passivation phenomenon is avoided. The invention solves the problem that a circuit with useless work needs to be added in the scheme for preventing the passivation of the lithium sub-battery in the prior art 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 starting the communication module at regular time to discharge the lithium sub-battery, so that the passivation of the lithium sub-battery is avoided, and the communication circuit can also develop other new functions, such as battery residue reporting, positioning, conversation and the like, so that the addition of useless function circuits is avoided.
In one embodiment, the anti-passivation system control method further includes:
acquiring a water meeting signal;
the water signal at this time can be acquired through 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 above process, the waterproof protection of the anti-passivation system can be realized.
In an embodiment, after controlling the communication module to output the corresponding second communication signal containing the water-encountering information according to the water-encountering signal, the method further includes:
acquiring return arrival information of the external communication equipment;
the return arrival information at this time is information like a command of "received data".
Controlling the communication module and the lithium sub-battery to sleep and accumulating sleep time;
and when the water contact time length meets a second preset time length, re-executing the step of acquiring the dormancy time length of the lithium subcell.
The effective outward sending of water information can be ensured through the process, and then the safety of the passivation prevention system can be ensured by controlling the dormancy of the communication module. And after that, the sleep duration is accumulated again, so that the effective operation of the control method of the anti-passivation system can be ensured.
In one embodiment, as shown in fig. 2, the method for controlling an anti-passivation circuit anti-passivation system includes a control module 20 and a communication module 30, wherein a controlled terminal of the communication module 30 is electrically connected to a control signal output terminal of the control module 20, a communication signal terminal of the communication module 30 is electrically connected to a communication signal terminal of the control module 20, and a power terminal of the control module 20 and a power terminal of the communication module 30 are respectively connected to the li-sub battery 10.
The control module 20 accumulates the sleep time, outputs the wake-up command and the first communication signal when the sleep time reaches a first preset time, and resets the sleep time, and the communication module 30 starts to work and sends the first communication signal to the external communication device when receiving the wake-up command, so that the communication module 30 is triggered to work once at intervals of the first preset time, that is, the lithium-ion battery 10 supplying power to the communication module 30 is always in an active state, and passivation is avoided. The above invention solves the problem of adding an ineffective circuit in the prior art solution for preventing the passivation of the li-sub battery 10 by using the control module 20 and the communication module 30. In particular, in the solution of the present application, the control module 20 may be various control circuits commonly used in a charging system of the lithium sub-battery 10. In addition, the communication module 30 implements a communication function in a general circuit, and in the present application, the control module 20 is combined with the communication module 30 to implement the timed start of the communication module 30 to discharge the lithium sub-battery 10, so as to avoid passivation of the lithium sub-battery 10, and the communication circuit can also develop other new functions, such as reporting, positioning, talking, etc. of the battery remaining capacity, so as to avoid the addition of an invalid circuit. Note that the function of the control module 20 at this time is realized by programming.
In the above embodiment, the control module 20 may further start internal timer interrupt to automatically wake up before the sleep, count a number of times (reset after active triggering of the device) according to the length of the timer, and actively trigger the lithium secondary battery 10 to work once when the number of times reaches a certain number, so that the lithium secondary battery 10 is always in an active state by using the large current and the communication time when the communication module 30 works, and passivation phenomenon does not occur.
Optionally, the first preset time period is less than 24 hours. Through the scheme, the battery can be ensured to be discharged at least once every day. So that the lithium sub-battery 10 is always in an active state and does not suffer from passivation.
Based on the above embodiment, when the device with the lithium sub-battery 10 originally has the communication function, such as an intelligent wearable device, a portable device, a mobile communication device, and the like, the circuit function is only needed to be realized in hardware, so that the passivation of the lithium sub-battery 10 can be prevented on the basis of not increasing hardware circuits, and the cost is greatly saved.
It should be noted that the first predetermined time period may be determined by a laboratory-determined optimal sleep time period for passivation prevention, and the lifetime and function of the li-te battery 10 may be maximally preserved.
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 receiving the wake-up command, the internet of things communication chip 301 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 an embodiment, as shown in fig. 4, the method for controlling an anti-passivation circuit anti-passivation system further includes a water sensor 40, and an output end of the water sensor 40 is connected to a collecting end of the control module 20.
Wherein, water sensor 40 is in it triggers to meet water signal and with to meet water signal transmission to control module 20 to prevent that passivation circuit anti-passivation system control method meets water, control module 20 is receiving when meeting water signal, the corresponding second communication signal that contains water information of output. By the scheme, whether the control method of the anti-passivation system of the anti-passivation circuit meets water can be quickly detected.
Optionally, the model of the internet of things communication chip 301 is SX 1276.
Wherein SX1276 is a lora (long Range radio) narrowband internet of things communication chip 301, and is responsible for data communication between a device and a gateway. For example, reporting 'water-containing' information data, a first communication signal and interactive data.
In one embodiment, the communication module 30 sends the first communication signal with an operating current of 100MA and a duration of 40-50 ms to ensure sufficient activation of the li-sub battery.
Through setting up operating current, can guarantee that the lithium subcell realizes preventing the abundant discharge of passivation, in addition, through setting up lasting operating time, can reduce the energy consumption of discharge process.
Optionally, the control module 20 is a main control chip or a single chip.
The main control chip drives the SX1276 chip through the SPI and processes data interaction and passivation prevention time control of the equipment and the gateway.
Based on the embodiment, the first preset time is 20 hours, the MCU is a main control chip of the water sensor 40, after the device encounters water, the voltage analog quantity sampling chip transmits data to the signal amplifier, the signal amplifier chip generates a super-threshold pulse to the MCU, the MCU finishes deep dormancy after receiving the wake-up interrupt, starts a program, sends a command to wake up the SX1276 through the SPI interface, sends data with water to the SX1276, and sends information of detected water to the gateway according to the specified 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 wait state. The gateway, upon receiving the message, replies with a "data received" command to the water sensor 40. After the water sensor 40 confirms that the gateway receives data, the MCU controls the SX1276 chip to enter a sleep mode, and starts an RTC timing wake-up program, and then the MCU also enters sleep with a sleep current of about 10uA (working at this current level for a long time will cause the li-ya battery 10 to be passivated), the RTC function of the MCU starts timing after sleep, wakes up and counts for 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 for online synchronization of device states, and 100mA current is consumed for each communication for 40-50 milliseconds. The activity of the lithium sub-battery 10 is ensured. If the water leakage event occurs in the process, zero clearing is carried out on the triggerless count. Thereby not only saving electricity, but also ensuring the activity of the lithium sub-battery 10. And the power utilization safety is also ensured.
In an embodiment, as shown in fig. 5, the method for controlling an anti-passivation circuit anti-passivation system further includes a voltage analog sampling module 501 and an operational amplifier module 502, an output end of the voltage analog sampling module 501 is connected to an input end of the operational amplifier module 502, and an output end of the operational amplifier module 502 is connected to an acquisition end of the control module 20; the voltage analog sampling module 501 has a first acquisition point and a second acquisition point.
When the voltage between the first collection point and the second collection point changes due to water, the voltage analog sampling module 501 collects the changed voltage signal, the operational amplifier module 502 amplifies the voltage signal to obtain a water signal and sends the water signal to the control module 20, and the control module 20 outputs a corresponding second communication signal containing water information to an external communication device and clears the dormancy duration when receiving the water signal, and controls the control module 20 and the communication module 30 to dormancy when receiving the return arrival information of the external communication device.
Through the embodiment, reasonable collection of water can be realized, and after the water is judged to be met, the control module 20 and the communication module 30 are controlled to be dormant, so that a good family protection function is achieved.
Based on the embodiment, the voltage analog acquisition can select an ultra-low power consumption operational amplifier, an ultra-low power consumption operational amplifier bias circuit is designed, and 2 sampling points are connected in parallel in the static bias circuit to form a parallel relation with the static bias resistor. By utilizing the conductive medium characteristic (resistance) of water, when water is detected at two ends of a sampling point, the resistance is generated, the static bias resistance is changed, and the 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 one embodiment, the anti-passivation circuit further includes a lithium sub-battery 10, and an output terminal of the lithium sub-battery 10 is connected to power terminals of the control module 20 and the communication module 30 and provides operating power for the control module 20 and the communication module 30.
The lithium sub-battery 10 in the anti-passivation circuit anti-passivation system control method can achieve effective anti-passivation of the lithium sub-battery 10.
The invention also proposes a storage medium, which, when being executed by a processor, causes the processor to carry out 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-mentioned passivation prevention system control method, the storage medium may also implement all the schemes of the passivation prevention system control method, and has the same beneficial effects, and details are not described herein again.
The method for controlling the anti-passivation system is implemented in the method embodiment. The above-described embodiments of the apparatus 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 also 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. One 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 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 is well known to those of ordinary skill 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 the computer. In addition, 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 includes any information delivery media as known to one of ordinary skill in the art.
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 prevention system of the present application includes all the steps of the above passivation prevention system control method, the passivation prevention system can also implement all the schemes of the passivation prevention system control method, and has the same beneficial effects, and details are not described herein again.
Alternatively, the memory and the 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 anti-passivation system further comprises a gateway, which is communicatively connected to the communication module 30.
Wherein, the radio frequency antenna can send a signal to the gateway, and send the information of water detection to the gateway according to the specified frequency and speed, and the SX1276 consumes 100MA current for 40-50 ms when sending data. After the command transmission is completed, SX1276 enters a reception wait state. After receiving the information, the gateway replies a command of 'data received' to the water sensor. After the water sensor confirms that the gateway receives data, the MCU controls the SX1276 chip to enter a sleep mode, an RTC timing wake-up program is started, then the MCU also enters sleep, the sleep current is about 10uA (the lithium secondary battery is passivated due to long-time work at the current level), the RTC function of the MCU starts timing after the sleep, the MCU wakes up and counts for 1 time every 2 hours, after the counting reaches 10 times, the communication module is started to send communication data of normal work to the gateway for online synchronization of the equipment state, and 100mA current is consumed for each communication for 40-50 milliseconds continuously. The activity of the lithium-ion battery is ensured. If the water leakage event occurs in the process, zero clearing is carried out on the triggerless count. Thereby saving electricity and ensuring the activity of the lithium sub-battery.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
Claims (10)
1. The control method of the anti-passivation system is characterized in that the anti-passivation system comprises a lithium subcell and a communication module, and the control method of the anti-passivation system comprises the following steps:
acquiring the dormancy duration of the lithium secondary battery;
when the sleeping time reaches a first preset time, outputting a wakeup command and a first communication signal, and resetting the sleeping time;
and controlling a communication module to start working according to the awakening command and sending the first communication signal to external communication equipment.
2. The anti-passivation system control method according to claim 1, further comprising:
acquiring a water meeting signal;
and controlling the communication module to output a corresponding second communication signal containing water-meeting information according to the water-meeting signal.
3. The method for controlling an anti-passivation system according to claim 2, wherein after controlling the communication module to output the corresponding second communication signal containing the water-encountering information according to the water-encountering signal, the method further comprises:
acquiring return arrival information of the external communication equipment;
controlling the communication module and the lithium sub-battery to sleep and accumulating sleep time;
and when the dormancy duration meets a second preset duration, re-executing the step of acquiring the dormancy duration of the lithium subcell.
4. An anti-passivation circuit, comprising:
the control module is used for accumulating the sleeping time, outputting a wakeup command and a first communication signal when the sleeping time reaches a first preset time, and resetting the sleeping time;
the controlled end of the communication module is electrically connected with the control signal output end of the control module, the communication signal end of the communication module is electrically connected with the communication signal end of the control module, and the power end of the control module and the power end of the communication module are respectively connected to the lithium secondary battery and used for starting working and sending the first communication signal to external communication equipment when receiving the awakening command.
5. The anti-passivation circuit of claim 4, wherein the communication module comprises;
the communication end of the Internet of things communication chip is a communication signal end of the communication module, and the controlled end of the Internet of things communication chip is a controlled end of the communication module and is used for starting working and converting the first communication signal into an analog signal when receiving a wake-up command;
and the signal input end of the radio frequency antenna is connected with the output end of the Internet of things communication chip and is used for sending the analog signal to external communication equipment.
6. The anti-passivation circuit of claim 4, further comprising a water sensor, an output end of the water sensor being connected to a 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 the water meeting signal is received.
7. The passivation prevention circuit of claim 4, further comprising a voltage analog sampling module and an operational amplifier module, wherein an output end of the voltage analog sampling module is connected with an input end of the operational amplifier module, and an output end of the operational amplifier module is connected with an acquisition end of the control module;
the voltage analog sampling module is provided with a first acquisition point and a second acquisition point and is used for acquiring a changed voltage signal when the voltage between the first acquisition point and the second acquisition point changes due to water;
the operational amplifier module is used for amplifying the voltage signal to obtain a water-encountering signal and sending the water-encountering signal to the control module;
the control module is further configured to output a corresponding second communication signal containing water-meeting information to the external communication device and clear the dormancy duration when receiving the water-meeting signal, and control the control module and the communication module to perform dormancy after receiving the return arrival information of the external communication device.
8. The anti-passivation circuit of claim 4, further comprising a lithium sub-battery, wherein an output terminal of the lithium sub-battery is connected to power terminals of the control module and the communication module and provides operating power for the control module and the communication module.
9. A storage medium, characterized in that the computer program, when being executed by a processor, causes the processor to carry out the steps of the anti-passivation system control method according to any one of claims 1-3.
10. 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 carry out the steps of the anti-passivation system control method according to any one of claims 1 to 3.
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