CN108073260B - Overcharge resetting method and system - Google Patents
Overcharge resetting method and system Download PDFInfo
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- CN108073260B CN108073260B CN201710224374.5A CN201710224374A CN108073260B CN 108073260 B CN108073260 B CN 108073260B CN 201710224374 A CN201710224374 A CN 201710224374A CN 108073260 B CN108073260 B CN 108073260B
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000006870 function Effects 0.000 claims description 17
- 230000000630 rising effect Effects 0.000 claims description 8
- 230000001960 triggered effect Effects 0.000 claims description 4
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 12
- 230000007547 defect Effects 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/22—Modifications for ensuring a predetermined initial state when the supply voltage has been applied
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/24—Resetting means
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00306—Overdischarge protection
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to a method and a system for overcharge reset, which utilizes an overcharge signal generated after a charging circuit is fully charged when charging a rechargeable battery to further generate a single or a plurality of reset signals to reset a main power supply, a branch power supply and a resettable circuit of the system, thereby achieving the purpose of resetting through overcharge without an external reset switch and restoring the state before resetting after resetting. The method is applied to wearable equipment with wireless charging, and the wearable equipment is reset once during charging every time, or the wearable equipment can be awakened once after charging when the equipment is halted and the watchdog fails, so that the reliability of the wearable equipment is improved, and the wearable equipment is made into a fully-closed and contactless form.
Description
Technical Field
The invention relates to the technical field of information, in particular to a chargeable technology, and particularly relates to a wearable device technology with wireless charging.
Background
The term "reset" means that the original state is restored in a circuit or a program. The method comprises power-on reset, power-off reset and local reset, for example, resetting one or more chips and resetting one or more local power supplies.
The existing reset technology comprises a manual switching method and a watchdog feeding method.
The manual switch method is that the reset is realized by manually starting a reset switch; the watchdog feeding method is that the watchdog does not trigger the reset signal through the watchdog feeding, and once the program is halted, the watchdog does not obtain a watchdog feeding pulse within a specified time, so that the watchdog starts the reset signal.
Both of the above techniques have their disadvantages:
the manual switch method needs to set a reset switch on the equipment. Along with the development of miniaturization, wireless charging and wearable technique, the shell is succinct, the little equipment of inconvenient setting up reset switch will be more and more, for example intelligent bracelet, intelligent wrist-watch, intelligent earphone etc.. Thus, this approach has significant disadvantages.
The watchdog feeding method cancels the problem of the reset switch, but if the program crashes within the watchdog pulse, the watchdog feeding is carried out as usual, but the function of the equipment is destroyed. At this point, it is only possible to get a reset until the power supply of the device is exhausted. Thus, this method also has significant disadvantages.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method for generating a reset signal by using an overcharge signal generated by an electronic device when charging an internal battery, in order to overcome the defects and hidden troubles of the prior art.
The technical scheme adopted by the invention for solving the problems is as follows: a method of overcharge reset, including but not limited to:
the method includes the steps of generating an overcharge signal when the battery is fully charged, and using the overcharge signal for resetting.
On the basis of the above technical solutions, in other aspects of the present invention, one or more of the following measures for local improvement may be adopted:
the step of processing the overcharge signal into a reset pulse signal specifically includes, but is not limited to:
capturing the overcharge signal;
shaping the overcharge signal;
generating a reset pulse signal by using the shaped overcharge signal;
generating a reset by using the reset pulse signal;
the reset pulse signal, the waveform of which includes but is not limited to square wave, triangle wave, positive sine wave, including but not limited to rising edge start and falling edge start, the number of the pulses of which includes but is not limited to single and multiple, and the width of the pulse includes but is not limited to adjustable and non-adjustable;
the reset includes, but is not limited to, a single reset and a plurality of resets in time sequence.
On the basis of the above technical solutions, in other aspects of the present invention, one or more of the following measures for local improvement may be adopted:
the reset includes but is not limited to:
a step for resetting the system power supply;
a step for resetting all resettable circuit terminals of the system;
a step for resetting the local power supply;
a step for resetting the locally resettable circuit terminal.
On the basis of the foregoing technical solutions, in other aspects of the present invention, a reset protection step may be adopted, specifically, one or more of the following measures for local improvement:
a step of storing data in the resettable circuit in a nonvolatile memory or a memory area outside a reset range before the resetting of the resettable circuit; a step of restoring data after the reset;
storing data in the system into a non-volatile memory before the system power is reset; a step of restoring data after the reset;
a step of marking data when the data is stored and a step of using the data mark when the data is restored;
a step of generating a reset flag before the resetting, and a step of erasing the flag after the resetting.
The invention also provides an overcharge reset system realized by adopting the method, which comprises but not limited to an overcharge signal generating circuit and a reset circuit, wherein when the system generates an overcharge signal, the reset circuit is driven to generate reset.
On the basis of the foregoing technical solutions, in other aspects of the present invention, a reset protection step may be adopted, specifically, one or more of the following measures for local improvement:
the reset circuit includes but is not limited to the reset of the main power supply and/or the sub power supply and/or the resettable circuit;
the system includes a charging circuit including, but not limited to, a wired charging circuit and a wireless charging circuit for charging a rechargeable battery;
the functions of the overcharge signal generation circuit include, but are not limited to:
generating the overcharge signal and stopping charging when the rechargeable battery is fully charged;
when the rechargeable battery is insufficient in electric quantity, generating an electric quantity insufficiency signal, and starting to charge the rechargeable battery when a charging power supply exists outside;
generating an overdischarge signal when the rechargeable battery is overdischarged and/or short-circuited, and turning off the discharge of the rechargeable battery.
On the basis of the foregoing technical solutions, in other aspects of the present invention, a reset protection step may be adopted, specifically, one or more of the following measures for local improvement:
the overcharge signal comprises but is not limited to more than one output end which is connected with more than one reset circuit;
the output end outputs a reset pulse, and the reset of the reset circuit is triggered by the initial edge of the reset pulse;
the start edge includes, but is not limited to, a rising edge and/or a falling edge, and timing can be set.
On the basis of the foregoing technical solutions, in other aspects of the present invention, a reset protection step may be adopted, specifically, one or more of the following measures for local improvement:
the reset circuit includes, but is not limited to, a protection function that protects the data and state of the system prior to reset and restores the data and state after reset; the data includes, but is not limited to, a username, password, and user data, the status including, but not limited to, a connection status of the system with other systems present;
the reset circuit includes, but is not limited to, functionality to generate a reset flag before reset and/or to remove a flag after reset;
triggering of the protection function comprises completion by the low battery signal and/or completion by program loop execution.
Compared with the prior art, the invention is characterized in that:
1. the defect that a reset switch needs to be arranged on the equipment shell in a manual switching method is overcome, so that the shell is simple, and the volume of the shell is reduced;
2. the defect that the reset can not be completely realized by a watchdog feeding method is avoided.
3. Under any condition, the device can be reliably reset as long as the device is charged to be overcharged, and meanwhile, the device can be reset step by step.
Drawings
Fig. 1 is a schematic diagram of a single-point reset according to a first embodiment of the present invention.
Fig. 2 is a timing diagram of single-point reset according to a first embodiment of the present invention.
Fig. 3 is a schematic diagram of a multi-point reset according to a second embodiment of the present invention.
FIG. 4 is a timing diagram of multi-point reset according to a second embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples.
One class of embodiments of the invention is as follows:
embodiment I, Single-Point reset-Wireless charging IP67 Intelligent watch
Fig. 1 is a contactless shell fully-closed intelligent watch supporting IP67 waterproof and dustproof functions and provided with wireless charging. Wherein:
reference numeral 101 denotes a wireless charging antenna coil, which is provided inside the watch case. 102 is a wireless charging circuit supporting the Qi standard. 103 is a rechargeable polymer battery, and Vb is a voltage detection terminal of the polymer battery. 106 is a power supply circuit that changes the power supply of 103 to 107 the required requirements. 107 is a bluetooth based smart watch circuit. 104 is an overcharge signal generating circuit, Vb is a voltage detection value of the polymer battery from 102, Sd is an undervoltage protection signal, and Su is an overcharge containing signal. 105 is a reset circuit, where S1Is a reset signal output terminal.
Fig. 2 is a timing diagram of fig. 1, where 201 is a Vb timing, i.e., a charge-discharge voltage signal of 103. 202 is 103 undervoltage protection informationThe number sequence. 203 is the overcharge protection signal timing of 103. 204 is a reset circuit S1The timing of (c).
The working principle is as follows:
1. 104 monitor the voltage Vb and current Ib of 103 at all times, monitoring the following 4 states:
1.1, 103 state of low battery. I.e. the voltage over 103 is below a certain value V1(e.g., 2.8V), Sd is set to low level at 104, control 102 stops discharge at 103, and Su is set to high level at the same time, and control 102 prepares to charge 103.
1.2, 103 charge ready state, voltage on 103 higher than V1And is lower than V2(e.g., 4.20V), setting Sd high 104, and its rising edge controls 102 to start supplying power; with Su set high, control 102 prepares for charging 103. At this time, when 101 senses that the Qi standard charger is operating, charging 103 is started.
1.3, 103 overcharged state, when 104 detects that Vb is higher than V2When Su is set to low, the falling edge triggers the control 102 to stop charging the capacitor 103. Since Su goes low, when the signal is received by the 105, a delay is triggered from the falling edge of the 203, and after the delay delta t is equal to (t 3-t 2), the 105 sets S1Is at a high level, S1The rising edge of (c) turns off the power circuit via 106, thereby resetting 107.
1.4, 103 over-discharge or short circuit state, when 104 detects that the discharge current Ib of 103 is higher than a certain value (e.g. 300 mA), Sd is set to low level, and the rising edge of Sd triggers control 102 to turn off the discharge of 103.
2. In the 107 application circuit, a CPU small system and a FLASH are included, in the program design, a reset protection function is set in a loop body, namely, key data in the system and a user name, a password, a connection state and a reset mark of network equipment connected with the system are periodically stored in the FLASH, when the CPU is halted, the intelligent watch is placed on a charger to be charged, the CPU is restarted due to the reset function of 105, in the restarted program, the intelligent watch is recovered according to the key data in the FLASH, the user name, the password and the connection state, and the reset mark is cleared. Thereby enabling the system to recover the state before the crash. The reset protection function may also be triggered by the over-discharge signal Sd.
3. Reset pulse signal S1In practical operation, various waveforms can be used, including but not limited to square wave, triangular wave, and sine wave, including but not limited to rising edge start and falling edge start, the number of pulses of the reset pulse signal includes but not limited to single or multiple, and the width of the pulse includes but not limited to adjustable and non-adjustable.
Example two, multipoint reset-VR/AR/MR System with multiple Sensors
Fig. 3 is a functional block diagram of the system. Fig. 4 is a reset timing diagram of the system.
In this embodiment, the same points as the first embodiment are not repeated, and the differences are:
the system reset is divided into 4 steps:
1. 311 may reset the circuit. This is the circuit that requires the first reset when the system is reset, and it is a 9-axis sensor, for example, that senses the position and motion state of the system.
2. 309 power supply 2, which is 310 the reset step of application circuit 2, which requires a reset after 311.
3. 307 power supply 1, which is 310 the reset step of application circuit 1, requires a reset after 309.
4. 306 total power, which is the last accessed circuit in the system.
The 4 reset steps described above are performed by a 305 reset circuit, wherein the reset signal Su generated by 304 acts on 305 and 305 generates S according to the sequential logic of fig. 44、S3、S2、S1The reset signal, generates a reset for 311, 309, 307, and 306, respectively. Wherein, t6≥t5≥t4≥t3≥t2。
The above embodiments are only a few illustrative examples of the present invention, and do not represent a limitation on the technical solution of the present invention. The method comprises the following steps:
the block diagram of the embodiment is only drawn according to custom made in the industry, and other drawing methods can be actually used; the content of the block diagram units is not limited to the content division in the drawings, but is only a logical function division, and in actual implementation, there may be other division manners, and may be combined with each other and/or separated and/or combined after being separated, and the combination and/or separation may be integrated into another system, and some features may be omitted, or not executed. The connections between the block diagrams elements are logical, electrical, mechanical, and wireless, including but not limited to radio, light, sound, magnetic, thermal, and the like.
The flow charts of the embodiments are also drawn according to conventional conventions in the industry, and other drawings may be used. The content of the flowchart unit is not limited to the content division in the drawing, but is only a logic function division, and other division modes can be provided in actual implementation. The elements of the flowcharts can be combined with each other and/or separated from each other and/or combined after separation, the combination and/or separation can be integrated into another flowchart, and some elements can be omitted or not performed. The order of some of the elements in the flow chart may be further ordered. Some of the breaks and jumps in the flow chart may also be combined in another way. The flowchart may be implemented in software, hardware, or a combination thereof.
The schematic illustration of the embodiment is again only drawn according to convention in the industry, and is only a schematic illustration, and other drawings may be used in practice. Whether lines in the figures are straight or curved, and whether they are dashed or solid, is not meant to be limiting unless specifically stated in the figures or in the text of the description.
The object diagrams of the embodiments are only examples, and other similar object diagrams can be selected according to the general explanation in the industry.
The terms of the embodiments are used in a generic and descriptive sense only and not for purposes of limitation, unless otherwise indicated.
The described modes of execution are likewise only named according to common conventions in the industry, and other terms may be substituted and do not affect the description unless specifically stated.
The device is not limited to a PC, a mobile phone, a VR device, an AR device, an MR device, a server, or a network device or other programmable device.
Claims (7)
1. A method of overcharge reset, comprising: the method comprises the following steps: generating an overcharge signal when the battery is fully charged, and using the overcharge signal for resetting;
the step of processing the overcharge signal into a reset pulse signal specifically comprises:
capturing the overcharge signal;
shaping the overcharge signal;
generating a reset pulse signal by using the shaped overcharge signal;
generating a reset by using the reset pulse signal; and/or the presence of a gas in the gas,
the waveform of the reset pulse signal at least comprises a square wave, a triangular wave and a positive sine wave, and comprises a rising edge start and a falling edge start, the number of pulses of the reset pulse signal comprises one or more, and the width of the pulse comprises adjustability and non-adjustability;
the reset includes a single reset and a plurality of resets in time sequence.
2. A method of overcharge reset according to claim 1 wherein the reset comprises:
a step for resetting the system power supply; and/or the presence of a gas in the gas,
a step for resetting all resettable circuit terminals of the system; and/or the presence of a gas in the gas,
a step for resetting the local power supply; and/or the presence of a gas in the gas,
a step for resetting the locally resettable circuit terminal.
3. The method according to claim 2, wherein the step of resetting the protection specifically comprises:
a step of storing data in the resettable circuit into a nonvolatile memory or a memory area outside a reset range before the resettable circuit is reset;
a step of restoring data after the reset; and/or the presence of a gas in the gas,
storing data in the system into a non-volatile memory before the system power is reset; a step of restoring data after the reset; and/or the presence of a gas in the gas,
a step of marking data when the data is stored and a step of using the data mark when the data is restored; and/or the presence of a gas in the gas,
a step of generating a reset flag before the resetting, and a step of erasing the flag after the resetting.
4. An overcharge reset system, comprising: the system comprises an overcharge signal generating circuit and a reset circuit, wherein when the system generates an overcharge signal, the reset circuit is driven to generate reset;
the reset circuit comprises a main power supply and/or a sub power supply and/or the reset of the resettable circuit;
the system comprises a charging circuit, wherein the charging circuit comprises a wired charging circuit and a wireless charging circuit, and the charging circuit is used for charging the rechargeable battery;
the function of the overcharge signal generation circuit comprises:
generating the overcharge signal and stopping charging when the rechargeable battery is fully charged; and/or the presence of a gas in the gas,
when the electric quantity of the rechargeable battery is insufficient, an over-discharge signal is generated, and the rechargeable battery is charged when a charging power supply exists outside; and/or the presence of a gas in the gas,
generating an overdischarge signal when the rechargeable battery is overdischarged and/or short-circuited, and turning off the discharge of the rechargeable battery.
5. An overcharge reset system according to claim 4, wherein:
the overcharge signal comprises more than one output end connected with more than one reset circuit;
the output end outputs a reset pulse, and the reset of the reset circuit is triggered by the initial edge of the reset pulse;
the start edge includes a rising edge and/or a falling edge, and timing can be set.
6. An overcharge reset system according to claim 4, wherein:
the reset circuit includes a protection function that protects data and states of the system before reset and restores the data and states after reset; the data at least comprises a user name, a password and user data, and the state at least comprises the connection state of the system with other systems; and/or the presence of a gas in the gas,
the reset circuit includes a function of generating a reset flag before reset and/or canceling the flag after reset; and/or the presence of a gas in the gas,
the triggering of the protection function comprises being done by the over-discharge signal and/or being done by program loop execution.
7. An overcharge reset system according to claim 5, wherein:
the reset circuit includes a protection function that protects data and states of the system before reset and restores the data and states after reset; the data at least comprises a user name, a password and user data, and the state at least comprises the connection state of the system with other systems; and/or the presence of a gas in the gas,
the reset circuit includes a function of generating a reset flag before reset and/or canceling the flag after reset; and/or the presence of a gas in the gas,
the triggering of the protection function comprises being done by the over-discharge signal and/or being done by program loop execution.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710224374.5A CN108073260B (en) | 2017-04-07 | 2017-04-07 | Overcharge resetting method and system |
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| CN201710224374.5A CN108073260B (en) | 2017-04-07 | 2017-04-07 | Overcharge resetting method and system |
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| CN108073260B true CN108073260B (en) | 2021-04-06 |
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| US11152935B2 (en) * | 2018-08-28 | 2021-10-19 | Google Llc | System and method to deliver reset via power line |
| CN110417086B (en) * | 2019-07-26 | 2021-04-02 | 深圳微步信息股份有限公司 | Battery overdischarge reset control circuit and mobile terminal |
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| CN104850203A (en) * | 2015-06-10 | 2015-08-19 | 联想(北京)有限公司 | Electronic apparatus reset method and electronic apparatus |
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| JP5006138B2 (en) * | 2007-08-29 | 2012-08-22 | セイコーインスツル株式会社 | Charge / discharge control circuit and rechargeable power supply |
| CN101498766B (en) * | 2008-01-30 | 2012-07-25 | 深圳富泰宏精密工业有限公司 | Test apparatus for charging function of electronic product |
| CN101814747B (en) * | 2009-02-19 | 2014-05-07 | 深圳迈瑞生物医疗电子股份有限公司 | Charging circuit and charging method |
| CN202260547U (en) * | 2011-10-13 | 2012-05-30 | 广东美的电器股份有限公司 | Charging circuit for charging super capacitor |
| CN203589771U (en) * | 2013-10-28 | 2014-05-07 | 无锡中星微电子有限公司 | Quick charging circuit for battery |
| CN205265320U (en) * | 2015-12-17 | 2016-05-25 | 深圳市奋升科技有限公司 | Battery charger of safe power saving |
| CN106059006B (en) * | 2016-07-22 | 2018-07-10 | 彭旭华 | A kind of lithium battery management method based on de- bridge-type bistable relay |
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| CN102053684A (en) * | 2009-10-28 | 2011-05-11 | 深圳市朗驰欣创科技有限公司 | Resetting management system and method for processing resetting signal thereof |
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| CN104991625A (en) * | 2015-06-23 | 2015-10-21 | 小米科技有限责任公司 | Electronic device and reset method and apparatus thereof |
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