CN109763711B - Device for powering-off and powering-on door lock outside door - Google Patents
Device for powering-off and powering-on door lock outside door Download PDFInfo
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- CN109763711B CN109763711B CN201910172339.2A CN201910172339A CN109763711B CN 109763711 B CN109763711 B CN 109763711B CN 201910172339 A CN201910172339 A CN 201910172339A CN 109763711 B CN109763711 B CN 109763711B
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Abstract
The invention relates to a device for powering off and powering on a door lock outside a door, which comprises an overvoltage protection circuit, an on-off time control circuit and a door lock MCU power supply circuit; the emergency power interface is communicated with the door lock MCU sequentially through the overvoltage protection circuit, the on-off time control circuit and the door lock MCU power supply circuit. According to the invention, the power switch of the door lock is realized without a power cut-off switch in the door lock, other wires are not required to be externally connected, only one emergency power interface such as a USB (universal serial bus) port is required, and the operation of powering up the intelligent lock device which is being powered can be completed after the power is cut off once by only inputting two power wires. The intelligent lock solves the problem that the intelligent lock can not be used outdoors by a completely dead user, and is simple, feasible, safe and reliable.
Description
Technical Field
The invention relates to the technical field of door locks, in particular to a device for powering off and powering on a door lock outside a door.
Background
Along with the continuous progress of science and technology, the society is developing, and intelligent cloud lock function is also abundantly, and most intelligent locks have the possibility of crashing in long-term use, for example: the intelligent lock is halted due to too strong static electricity in winter, or is halted due to strong pulse interference, and the like. These crashes may allow the master MCU to resume operation by resetting it, but in some cases resetting the master MCU may not allow the smart lock to resume normal operation. At this time, it is very useful to design a circuit which is externally connected with an emergency 6V power supply and is powered on after being plugged into an emergency interface and the whole intelligent lock power supply system is powered off.
Disclosure of Invention
The invention aims to provide a device for powering off and powering on a door lock outside a door, which solves the problem that an intelligent door lock is completely dead.
To achieve the purpose, the invention adopts the following technical scheme:
the device for powering off and powering on the door lock outside the door comprises an overvoltage protection circuit, an on-off time control circuit and a door lock MCU power supply circuit; the emergency power interface is communicated with the door lock MCU sequentially through the overvoltage protection circuit, the on-off time control circuit and the door lock MCU power supply circuit;
the on-off time control circuit comprises a second diode D2, a sixty-third resistor R63, a sixty-fifth resistor R65, a sixty-fifth capacitor C65, a twenty-fifth capacitor C25, a sixty-second resistor R62, a sixty-fourth resistor R64, a first triode T1, an eighty-ninth resistor R89 and an LDO U13;
the anode of the second diode D2 is communicated with the overvoltage protection circuit, and the cathode of the second diode D2 is connected with a 6V power supply; one end of the sixty-third resistor R63 is connected with the overvoltage protection circuit, and the other end of the sixty-fifth resistor R65 is grounded; the sixty-fifth capacitor C65 is connected in parallel with the sixty-fifth resistor R65; the common end of the sixty-third resistor R63 and the sixty-fifth resistor R65 is connected with the USB detection end; one end of the twenty-fifth capacitor C25 is communicated with the overvoltage protection circuit, the other end of the twenty-fifth capacitor C is connected with the base electrode of the first triode T1 through a sixty-second resistor R62, one end of a sixty-fourth resistor R64 is connected with the base electrode of the first triode T1, and the other end of the sixty-fourth resistor R64 is grounded; the emitter of the first triode T1 is grounded; the collector electrode of the first triode T1 is connected with the EN pin of the LDU 13; one end of the eighty-ninth resistor R89 is connected with a 6V power supply, the other end of the eighty-ninth resistor R89 is connected with an EN pin of the LDO U13, and an OUT pin of the LDO U13 is communicated with the MCU power supply circuit.
To illustrate further, the overvoltage protection circuit includes a fuse FU1, an overvoltage protection limiter tube U18, a sixty-sixth capacitor C66, a sixty-seventh capacitor C67, and a fourth diode D4;
the emergency power interface is connected with the IN pin of the overvoltage protection limiting pipe U18 through the fuse FU1, one end of the sixty-six capacitor C66 is connected with the IN pin of the overvoltage protection limiting pipe U18, and the other end of the sixty-six capacitor C66 is grounded; four GND pins of the overvoltage protection limiting tube U18 are connected with the positive electrode of the fourth diode D4, and the negative electrode of the fourth diode D4 is grounded; the OUT pin of the overvoltage protection limiting tube U18 is connected with the on-off time control circuit; one end of the sixty-seventh capacitor C67 is connected with the on-off time control circuit, and the other end of the sixty-seventh capacitor C67 is grounded.
To illustrate further, the door lock MCU power supply circuit includes a twenty-sixth capacitor C26 and a twenty-eighth capacitor C28; one end of the twenty-eighth capacitor C28 is connected with the door lock MCU and the OUT pin of the LDU 13, and the other end of the twenty-eighth capacitor C is grounded; one end of the twenty-sixth capacitor C26 is connected with the OUT pin of the LDU 13, and the other end of the twenty-sixth capacitor C is grounded.
To further illustrate, the on-off time control circuit further includes a twenty-seventh capacitor C27 and a twenty-ninth capacitor C29; the IN pin of the LDU 13 is connected with a 6V power supply; the GND pin of the LDU 13 is grounded; one end of the twenty-seventh capacitor C27 is connected with a 6V power supply, and the other end of the twenty-seventh capacitor C is grounded; the twenty-ninth capacitance C29 is connected in parallel with the twenty-seventh capacitance.
Further described, the twenty-sixth capacitor C26 is a polar capacitor, and the positive electrode of the twenty-sixth capacitor C26 is connected to the OUT pin of the LDOU 13.
Further stated, the twenty-seventh capacitor C27 is a polar capacitor, and the positive electrode of the twenty-seventh capacitor C27 is connected to a 6V power supply.
To further illustrate, the eighteenth resistor R89 has a resistance ranging from 1m ohms to 1k ohms; the resistance value of the sixty-two resistor R62 is smaller than the resistance value of the sixty-four resistor R64, and the resistance values of the sixty-two resistor R62 and the sixty-four resistor R64 range from 1K to 10M ohms.
The invention has the beneficial effects that: the power switch of the door lock is realized without a power cut-off switch in the door lock, other wires are not required to be externally connected, only one emergency power interface such as a USB (universal serial bus) port is required, and only two power wires are required to be input to complete the operation of powering up the intelligent lock device after once powering off. The intelligent lock solves the problem that the intelligent lock can not be used outdoors by a completely dead user, and is simple, feasible, safe and reliable.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic overall construction of an embodiment of the present invention;
wherein: the first dotted line frame part is an overvoltage protection circuit, the second dotted line frame part is an on-off time control circuit, and the third dotted line frame part is a door lock MCU power supply circuit.
Detailed Description
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
As shown in FIG. 1, the device for powering off and powering on the door lock outside the door comprises an overvoltage protection circuit, an on-off time control circuit and a door lock MCU power supply circuit; the emergency power interface is communicated with the door lock MCU sequentially through the overvoltage protection circuit, the on-off time control circuit and the door lock MCU power supply circuit;
the on-off time control circuit comprises a second diode D2, a sixty-third resistor R63, a sixty-fifth resistor R65, a sixty-fifth capacitor C65, a twenty-fifth capacitor C25, a sixty-second resistor R62, a sixty-fourth resistor R64, a first triode T1, an eighty-ninth resistor R89 and an LDO U13;
the anode of the second diode D2 is communicated with the overvoltage protection circuit, and the cathode of the second diode D2 is connected with a 6V power supply; one end of the sixty-third resistor R63 is connected with the overvoltage protection circuit, and the other end of the sixty-fifth resistor R65 is grounded; the sixty-fifth capacitor C65 is connected in parallel with the sixty-fifth resistor R65; the common end of the sixty-third resistor R63 and the sixty-fifth resistor R65 is connected with the USB detection end; one end of the twenty-fifth capacitor C25 is communicated with the overvoltage protection circuit, the other end of the twenty-fifth capacitor C is connected with the base electrode of the first triode T1 through a sixty-second resistor R62, one end of a sixty-fourth resistor R64 is connected with the base electrode of the first triode T1, and the other end of the sixty-fourth resistor R64 is grounded; the emitter of the first triode T1 is grounded; the collector electrode of the first triode T1 is connected with the EN pin of the LDU 13; one end of the eighty-ninth resistor R89 is connected with a 6V power supply, the other end of the eighty-ninth resistor R89 is connected with an EN pin of the LDO U13, and an OUT pin of the LDO U13 is communicated with the MCU power supply circuit.
LDU 13 is XC6215B332MR-G or XC6504A331MR-G chip, and the model of first triode T1 is S8050, and the model of fourth diode D4 and second diode D2 are SS14. The EN pin of the LDOU13 is a control pin, and when the pin is at a high level, the LDOU13 outputs 3.3V voltage, and when the pin is at a low level, the pin does not output voltage. When no emergency power supply is inserted, the eighty-ninth resistor R89 is pulled up by the 6V power supply voltage, and the EN pin is at a high level at the moment, so that the LDU 13 works normally, 3.3V voltage is output to a power supply circuit of the door lock MCU, and the door lock MCU obtains the working voltage to work normally. When the emergency power supply is plugged in, the twenty-fifth capacitor C25 is charged and then discharged, the emergency power supply is plugged in, the twenty-fifth capacitor C25 is turned on at the moment, then electricity is stored, the twenty-fifth capacitor C25 is equivalent to an open circuit, a voltage difference is formed between the twenty-fifth capacitor C25 and the ground due to the fact that the voltage difference is formed, the base potential of the first triode T1 is increased, the first triode T1 is turned on, the EN pin is at a low potential, the LDU 13 does not output voltage, the door lock MCU does not work, and the whole system is powered off. When the twenty-fifth capacitor C25 is discharged, the first triode T1 resumes the off state, and at this time, resumes the power supply to the door lock MCU. The second diode D2 prevents the 6V supply voltage from sinking current. Through such regulation and control mode, need not to realize the switch of lock through the inside power switch of lock, need not external other wires, only need an emergency power interface such as USB mouth, only need the input of two power lines can accomplish the operation of powering up again after carrying out the outage to the intelligent lock equipment that is supplying power. The problem that the intelligent lock can not be used outdoors when a user is completely dead is solved.
To illustrate further, the overvoltage protection circuit includes a fuse FU1, an overvoltage protection limiter tube U18, a sixty-sixth capacitor C66, a sixty-seventh capacitor C67, and a fourth diode D4;
the emergency power interface is connected with the IN pin of the overvoltage protection limiting pipe U18 through the fuse FU1, one end of the sixty-six capacitor C66 is connected with the IN pin of the overvoltage protection limiting pipe U18, and the other end of the sixty-six capacitor C66 is grounded; four GND pins of the overvoltage protection limiting tube U18 are connected with the positive electrode of the fourth diode D4, and the negative electrode of the fourth diode D4 is grounded; the OUT pin of the overvoltage protection limiting tube U18 is connected with the on-off time control circuit; one end of the sixty-seventh capacitor C67 is connected with the on-off time control circuit, and the other end of the sixty-seventh capacitor C67 is grounded.
The chip model of the overvoltage protection limiter U18 is WS3202E61. Fuse FU1 prevents the back-end circuit from shorting out the chip of the circuit, and fourth diode D4 prevents the GND pin from reversing, and the sixty-six capacitor C66 and the sixty-seven capacitor C67 are filtered.
To illustrate further, the door lock MCU power supply circuit includes a twenty-sixth capacitor C26 and a twenty-eighth capacitor C28; one end of the twenty-eighth capacitor C28 is connected with the door lock MCU and the OUT pin of the LDU 13, and the other end of the twenty-eighth capacitor C is grounded; one end of the twenty-sixth capacitor C26 is connected with the OUT pin of the LDU 13, and the other end of the twenty-sixth capacitor C is grounded.
The twenty eighth capacitor C28 and the twenty sixth capacitor C26 form a filter capacitor with 3.3V at the output end of the LDO.
To further illustrate, the on-off time control circuit further includes a twenty-seventh capacitor C27 and a twenty-ninth capacitor C29; the IN pin of the LDU 13 is connected with a 6V power supply; the GND pin of the LDU 13 is grounded; one end of the twenty-seventh capacitor C27 is connected with a 6V power supply, and the other end of the twenty-seventh capacitor C is grounded; the twenty-ninth capacitance C29 is connected in parallel with the twenty-seventh capacitance.
The twenty-seventh capacitor C27 and the twenty-ninth capacitor C29 are used for filtering and serve as filtering capacitors of the 6V power input LDO, so that the stability of the circuit is improved.
Further described, the twenty-sixth capacitor C26 is a polar capacitor, and the positive electrode of the twenty-sixth capacitor C26 is connected to the OUT pin of the LDOU 13.
Further stated, the twenty-seventh capacitor C27 is a polar capacitor, and the positive electrode of the twenty-seventh capacitor C27 is connected to a 6V power supply.
The polar capacitor can be better suitable for a direct current circuit.
To further illustrate, the eighteenth resistor R89 has a resistance ranging from 1m ohms to 1k ohms; the resistance value of the sixty-two resistor R62 is smaller than the resistance value of the sixty-four resistor R64, and the resistance values of the sixty-two resistor R62 and the sixty-four resistor R64 range from 1K to 10M ohms.
Through the regulation and control of parameters of the twenty-fifth capacitor C25, the eighty-ninth resistor R89, the sixty-second resistor R62 and the sixty-fourth resistor R64, the power-off time can be controlled between 1ms and 10s, and the aim of completely restarting the door lock MCU under various conditions is fulfilled.
The foregoing is merely exemplary of the present invention, and those skilled in the art should not be considered as limiting the invention, since modifications may be made in the specific embodiments and application scope of the invention in light of the teachings of the present invention.
Claims (4)
1. The utility model provides a device that carries out outage to lock and power on outside door which characterized in that: the device comprises an overvoltage protection circuit, an on-off time control circuit and a door lock MCU power supply circuit; the emergency power interface is communicated with the door lock MCU sequentially through the overvoltage protection circuit, the on-off time control circuit and the door lock MCU power supply circuit;
the on-off time control circuit comprises a second diode, a sixty-third resistor, a sixty-fifth capacitor, a twenty-fifth capacitor, a sixty-second resistor, a sixty-fourth resistor, a first triode, an eighty-ninth resistor and an LDO (U13);
the anode of the second diode is communicated with the overvoltage protection circuit, and the cathode of the second diode is connected with a 6V power supply; one end of the sixty-third resistor is connected with the overvoltage protection circuit, and the other end of the sixty-fifth resistor is grounded through the sixty-fifth resistor; the sixty-fifth capacitor is connected in parallel with the sixty-fifth resistor; the common end of the sixty-third resistor and the sixty-fifth resistor is connected with the USB detection end; one end of the twenty-fifth capacitor is communicated with the overvoltage protection circuit, the other end of the twenty-fifth capacitor is connected with the base electrode of the first triode through a sixty-second resistor, one end of the sixty-fourth resistor is connected with the base electrode of the first triode, and the other end of the sixty-fourth resistor is grounded; the emitter electrode of the first triode is grounded; the collector electrode of the first triode is connected with the EN pin of the LDO (U13); one end of the eighty-ninth resistor is connected with a 6V power supply, the other end of the eighty-ninth resistor is connected with an EN pin of the LDO (U13), and an OUT pin of the LDO (U13) is communicated with the MCU power supply circuit;
the on-off time control circuit further comprises a twenty-seventh capacitor and a twenty-ninth capacitor; the IN pin of the LDO (U13) is connected with a 6V power supply; GND pin of LDO (U13) is grounded; one end of the twenty-seventh capacitor is connected with a 6V power supply, and the other end of the twenty-seventh capacitor is grounded; the twenty-ninth capacitor is connected in parallel with the twenty-seventh capacitor;
the LDO (U13) is an XC6215B332MR-G or XC6504A331MR-G chip, the model of the first triode is S8050, the models of the fourth diode and the second diode are SS14, the EN pin of the LDO (U13) is a control pin, when the pin is in a high level, the LDO (U13) outputs 3.3V voltage, and when the pin is in a low level, the LDO (U13) does not output voltage;
the overvoltage protection circuit comprises a fuse, an overvoltage protection limiting tube, a sixty-sixth capacitor, a sixty-seventh capacitor and a fourth diode;
the emergency power interface is connected with the IN pin of the overvoltage protection limiting pipe through the fuse, one end of the sixty-six capacitor is connected with the IN pin of the overvoltage protection limiting pipe, and the other end of the sixty-six capacitor is grounded; four GND pins of the overvoltage protection limiting tube are connected with the positive electrode of the fourth diode, and the negative electrode of the fourth diode is grounded; the OUT pin of the overvoltage protection current limiting tube is connected with the on-off time control circuit; one end of the sixty-seventh capacitor is connected with the on-off time control circuit, and the other end of the sixty-seventh capacitor is grounded;
the twenty-seventh capacitor is a polar capacitor, and the positive electrode of the twenty-seventh capacitor is connected with a 6V power supply.
2. The device for powering-off and powering-up a door lock outside a door as claimed in claim 1, wherein: the door lock MCU power supply circuit comprises a twenty-sixth capacitor and a twenty-eighth capacitor; one end of the twenty-eighth capacitor is connected with the door lock MCU and an OUT pin of the LDO (U13), and the other end of the twenty-eighth capacitor is grounded; one end of the twenty-sixth capacitor is connected with an OUT pin of the LDO (U13), and the other end of the twenty-sixth capacitor is grounded.
3. The apparatus for powering-off a door lock outside a door as claimed in claim 2, wherein: the twenty-sixth capacitor is a polar capacitor, and the anode of the twenty-sixth capacitor is connected with the OUT pin of the LDO (U13).
4. The device for powering-off and powering-up a door lock outside a door as claimed in claim 1, wherein: the eighty-ninth resistor has a resistance ranging from 1m ohms to 1k ohms; the resistance value of the sixty-two resistor is smaller than that of the sixty-four resistor, and the resistance values of the sixty-two resistor and the sixty-four resistor range from 1K to 10M ohms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910172339.2A CN109763711B (en) | 2019-03-07 | 2019-03-07 | Device for powering-off and powering-on door lock outside door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910172339.2A CN109763711B (en) | 2019-03-07 | 2019-03-07 | Device for powering-off and powering-on door lock outside door |
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| Publication Number | Publication Date |
|---|---|
| CN109763711A CN109763711A (en) | 2019-05-17 |
| CN109763711B true CN109763711B (en) | 2023-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910172339.2A Active CN109763711B (en) | 2019-03-07 | 2019-03-07 | Device for powering-off and powering-on door lock outside door |
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Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| AU2002950762A0 (en) * | 2002-08-14 | 2002-09-12 | John Philip Griffits | Identification and selection of mechanical keys |
| DE102004041869A1 (en) * | 2004-08-27 | 2006-03-02 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | Electronic steering lock |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101162847A (en) * | 2006-10-10 | 2008-04-16 | 伍占禧 | Automatic equalization charging equipment charged by series storage battery |
| CN101640404A (en) * | 2009-05-19 | 2010-02-03 | 上海闻泰电子科技有限公司 | Mobile phone charging protection circuit |
| CN102866931A (en) * | 2012-09-06 | 2013-01-09 | 广西电网公司电力科学研究院 | Watchdog circuit for monitoring device for fault traveling wave of high-voltage transmission line |
| CN104372995A (en) * | 2014-10-09 | 2015-02-25 | 赵崇谊 | Intelligent drum brake type anti-theft lock for electric vehicle |
| CN106760993A (en) * | 2016-12-12 | 2017-05-31 | 上海图正信息科技股份有限公司 | A kind of electronic lock |
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Address after: No.1 Dongtai Road, Eastern Industrial Park, Lishui Town, Nanhai District, Foshan City, Guangdong Province Applicant after: Guangdong Huitailong Technology Co.,Ltd. Applicant after: FOSHAN HUTLON INTELLIGENT TECHNOLOGY Co.,Ltd. Address before: No.1 Dongtai Road, Eastern Industrial Park, Lishui Town, Nanhai District, Foshan City, Guangdong Province Applicant before: GUANGDONG HUTLON TECHNOLOGY Co.,Ltd. Applicant before: FOSHAN HUTLON INTELLIGENT TECHNOLOGY Co.,Ltd. |
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